JP6640899B2 - Liquid absorption sheet manufacturing equipment - Google Patents

Description

  The present invention relates to an apparatus for producing a liquid absorbing sheet suitable for absorbing liquid such as urine excreted by humans and pets, for example, rabbits, cats, dogs, and the like.

  FIG. 69 is a simplified cross-sectional view of the absorber 1 in a disposable diaper, a sanitary product, or the like, which is easy for those skilled in the art based on Patent Document 1 and the like. The absorber 1 has a configuration in which an absorption enhancing layer 3 is arranged in a partial region on a base layer 2 having a large area, and is covered by an upper tissue 4 and a lower tissue 5. The base layer 2 is composed of a mixture of the cotton-like pulp 6 and the liquid absorbing polymer 7. The absorption enhancement layer 3 also has the same configuration as the base layer 2, and the thickness of the absorption enhancement layer 3 is the same as the thickness of the base layer 2. The absorption-enhancing layer 3 is disposed, for example, in a region near the center of the base layer 2 corresponding to a site where the urine and menstrual blood such as disposable diapers and sanitary articles are easily contacted by the human body. Increase volume.

JP 2009-232684

  The problem of the technique shown in FIG. 69 is that the provision of the absorption enhancing layer 3 in the absorber 1 increases the overall thickness. As a result, a feeling of wearing when the person wears the absorber 1 is deteriorated. Also, in applications where the absorber 1 is used without being attached to humans and pets, handling is inferior in packing, transportation, etc. due to the partial increase in thickness due to the absorption enhancing layer 3. Furthermore, there is a problem that it is difficult to fold the position on the absorption enhancement layer 3 that is overlaid on the base layer 2 as a fold line for packing, transportation, and disposal.

  An object of the present invention is to provide an apparatus for manufacturing a liquid absorbing sheet in which a region having a difference in liquid absorption performance, for example, a liquid absorption amount, a liquid absorption speed, and the like is partially formed, and the whole is thin and flat and has a uniform thickness. It is to be.

  Another object of the present invention is to provide a device which enables formation of a region having a difference in absorption performance, and which is related to manufacture the above-mentioned thin flat liquid absorbing sheet having a uniform thickness. That is.

The present invention
Individual absorbers 12a, 12b
A liquid-permeable continuous long topsheet 13 having a planar shape larger than the individual absorbers 12a, 12b;
Sandwiched by a continuous liquid-permeable or liquid-impermeable continuous back sheet 14 having a larger planar shape than the individual absorbers 12a, 12b;
The peripheral portion 21 of the long top sheet 13 and the peripheral portion 22 of the long back sheet 14 are adhered over the entire outer periphery of the individual absorbers 12a and 12b to form a continuous strip-shaped long liquid absorbing sheet. 11c is configured,
The individual absorbers 12a and 12b
A base layer 25 in which the fibrous absorbent 151 and the liquid absorbent resin 152 are distributed at a uniform ratio per unit area;
On the long surface sheet 13 side, provided in a predetermined region on the base layer 25, and having an absorption enhancing layer 26 containing a liquid absorbent resin,
The thickness of the individual absorbers 12a and 12b is substantially uniform,
The overall planar shape of the individual absorbers 12a and 12b is a substantially right-angled isosceles triangle,
An extending portion 34 extending from the apex portion 35 and extending away from the hypotenuse 33;
The predetermined area is near the vertex 35 of the right triangle and the extension 34,
Near the bottom corners 36 and 37 are notches 38 and 39 cut out by the same lengths L1 and L2 as the extension 34 in a direction away from the hypotenuse 33,
A liquid absorbing sheet manufacturing apparatus for manufacturing individual liquid absorbing sheets 11a and 11b which are formed in plane symmetry with respect to a symmetry plane 44 passing through a vertex angle portion 35 and perpendicular to an oblique side 33,
(A) On the upstream conveyor 96, a strip-shaped long base layer 25 that is continuous in the transport direction is manufactured, and the width of the long base layer 25 is defined by the length of the extending portion 34 from the hypotenuse 33 of the individual absorbers 12a and 12b. A base layer manufacturing means 101 having a length L3 up to the extension top 53;
(B) The predetermined area adjacent to the long base layer 25 on the upstream conveyor 96 in the conveying direction and corresponding to each of the individual absorbers 12a and 12b formed alternately in the width direction is selectively provided. A selective granulation means 103 for granulating a granular liquid absorbent resin,
(C) absorber forming means 106 and 109,
Pressing the dispersed long base layer 25 over the entire planar shape to obtain a continuous strip-shaped long absorber 12c,
A pair of first rotary blades 133 are formed so as to protrude radially outward in the circumferential direction corresponding to the entire planar shape of the individual absorbers 12a and 12b, and are driven to rotate about the rotation axis. When,
A first anvil roll 263 having a rotation axis parallel to the rotation axis of the first die cutter roll 262 and being driven and rotated by the first die cutter roll 262;
While transporting the long absorbent body 12c between the first die cutter roll 262 and the first anvil roll 263, the individual absorbent bodies 12a and 12b are cut by the first rotary blade 133 along the first cutting lines 145 to 148. Absorber forming means 106 and 109 for forming
(D) liquid absorbing sheet forming means 93 and 119,
On the downstream conveyor 111 having a downstream transport speed V111 exceeding the upstream transport speed V96 of the upstream conveyor 96, the individual absorbers 12a and 12b from the absorber forming means 106 and 109 are separated from each other in the transport direction by an interval W7. Open and transport
The individual absorbers 12a and 12b on the downstream conveyor 111 are sandwiched between the long top sheet 13 and the long back sheet 14, and the peripheral portion 21 of the long top sheet 13 and the peripheral edge of the long back sheet 14 are sandwiched. The portion 22 is adhered and pressurized over the entire outer periphery of the individual absorbers 12a and 12b to obtain a long liquid absorbing sheet 11c.
A second die cutter roll formed with a pair of second rotary blades protruding radially outward in the circumferential direction corresponding to the entire planar shape of the individual liquid absorbing sheets 11a and 11b, and driven to rotate around the rotation axis; ,
A second anvil roll that has a rotation axis parallel to the rotation axis of the second die cutter roll and that is driven and rotated by the second die cutter roll;
While the long liquid absorbing sheet 11c is being conveyed between the second die cutter roll and the second anvil roll, the peripheral edge 21 of the long top sheet 13 and the peripheral edge 22 of the long back sheet 14 are moved by the second rotary blade. And a liquid absorbing sheet forming means 93 and 119 for forming individual liquid absorbing sheets 11a and 11b by cutting the liquid absorbing sheets 11a and 11b at second cutting lines 154 to 157.

  According to the present invention, a thin flat continuous continuous base layer constituting the absorber is manufactured by the base layer manufacturing means, and the granular liquid absorbing resin is selectively formed on the base layer by the selective spraying means. The particles are scattered in accordance with the predetermined region of each absorber, and thereafter, the absorber is manufactured by pressing the entire planar shape. Thus, the overall shape of the absorber can be made substantially uniform in thickness. The absorber thus obtained is sandwiched between the top sheet and the back sheet to complete the liquid absorption sheet.

The present invention
The base layer manufacturing means 101 includes:
(A1) means 161 for mixing the liquid absorbent resin 152 into the fibrous absorbent 151 at a uniform ratio per unit area and supplying the mixed absorbent 162;
(A2) a cylindrical suction drum 163 disposed above the upstream conveyor 96,
From outside the suction drum 163, the mixed absorbent 162 is supplied from the mixed absorbent supplying means 161.
A suction drum 163 in which a number of suction holes 174 having a size through which the mixed absorbent 162 does not pass are formed;
(A3) means 164 for driving the suction drum 163 to rotate about its axis;
(A4) Negative pressure suction of the mixed absorbent 162 in the rotational direction inside the suction drum 163 over the circumferential angles A2 and A3 from the position where it is supplied to the upstream conveyor 96, And a negative pressure means 165 for forming the long base layer 25 of the mixed absorbing material 162.

  According to the present invention, in order to produce the base layer 25, a fibrous absorbent is mixed with a particulate liquid absorbent resin, and for example, a mixed absorbent 162 which may be continuous and long may be mixed with a fibrous absorbent such as a straight cylinder. It is supplied to the outside of the cylindrical suction drum 163 and is stacked on the outer peripheral surface of the suction drum 163 by suctioning through the suction hole 174 with a negative pressure. Thus, the continuous mixed absorbent 162 stacked on the suction drum 163 can be obtained according to the rotation of the suction drum 163.

  To separate and transfer the mixed absorbent 162 laminated on the outer peripheral surface from the suction drum 163 by preventing its undesired drop by its own weight, (1) peel the mixed absorbent 162 of the suction drum 163 from the outer peripheral surface The negative pressure in the circumferential direction may be changed and adjusted so that the absolute value of the negative pressure to be suctioned at the downstream position to be suctioned is made smaller than that at the upstream, or (2) outside the suction drum 163. In addition, an arc-shaped shielding plate 178 along the outer peripheral surface may be arranged so that the mixed absorbing material 162 is not sucked on the outer peripheral surface of the suction drum 163, the suction force is reduced, or the suction area may be reduced. Or (3) the mixed absorbing material 162 may be peeled off from the outer peripheral surface of the suction drum 163 with a knife edge member or the like, or (4) suction may be performed by another configuration. It may be adapted to be to separate the mixed absorbent 162 from the ram 163.

It is a perspective view of the liquid absorption sheet 11 manufactured by the manufacturing apparatus of the liquid absorption sheet of one Embodiment of this invention. FIG. 3 is a plan view of the liquid absorbing sheet 11. FIG. 3 is a front view of the liquid absorbing sheet 11. FIG. 4 is a rear view of the liquid absorbing sheet 11. FIG. 4 is a left side view of the liquid absorbing sheet 11. FIG. 6 is a simplified cross-sectional view as viewed from a section line VI-VI in FIG. 2. It is the simplified perspective view which shows the state which accommodated the absorber 12 folded into two in the individual packaging bag 45. FIG. 4 is a simplified perspective view showing a package body 50 in which a liquid absorbing sheet 11 stored in an individual packaging bag 45 is stored in a packaging bag 49. FIG. 3 is a simplified perspective view of an excretory device 17 for a rabbit 16, which is a pet. It is a simplified side view of the excretion device 17. FIG. 4 is a simplified perspective view of the excretion device 17. It is a top view of container 61. It is a front view of the container 61. It is a left view of container 61. It is a bottom view of the container 61. FIG. 13 is a cross-sectional view as viewed from a section line XVI-XVI in FIG. FIG. 4 is a plan view of a bed member 62. FIG. 4 is a front view of a bed member 62. It is a right view of a pond member 62. FIG. 11 is a partial perspective view showing a state in which a base end of a locking portion 81 is fitted in locking grooves 82 and 83 and locked to a locking protrusion 71a. It is a figure which shows the manufacturing apparatus 91 which concerns on one Embodiment of this invention for manufacturing the liquid absorption sheet 11, and the processing form in a manufacturing process. It is a block diagram for explaining operation of a control circuit of absorber manufacturing device 92. It is the simplified top view of the continuous elongate absorber 12c supplied from the 1st press machine 106. It is a front view of the long absorber 12c shown in FIG. 23, FIG. 24 is a rear view of the long absorber 12c shown in FIG. 23. FIG. 24 is a transverse cross-sectional view taken along section line 2VI-2VI in FIG. 23. FIG. 4 is a schematic cross-sectional view exaggeratedly drawn for easy understanding of a state in which granular liquid-absorbent resin is dispersed on a base layer 25. FIG. 4 is a simplified cross-sectional view of a continuous elongated absorber 12c pressurized by a first pressurizer 106. FIG. 11 is a plan view of a continuous band-shaped long liquid absorbing sheet 11c immediately before a second cutting machine 119 after being sequentially pressurized by a second pressing machine 113 and a belt pressing machine 118. FIG. 30 is a front view of the long liquid absorbing sheet 11c shown in FIG. 29. FIG. 30 is a rear view of the long liquid absorbing sheet 11c shown in FIG. 29. FIG. 30 is a side view of the long liquid absorbing sheet 11c of FIG. 29. FIG. 30 is a transverse cross-sectional view taken along section line 3III-3III in FIG. 29. 3 is a simplified perspective view of a base layer manufacturing means 101 for manufacturing a base layer 25. FIG. FIG. 4 is a side view of the selective particle size distribution means 103. FIG. 4 is a plan view of the selective particle-dispersing unit 103. FIG. 37 is a block diagram showing a movement path of a granular liquid absorbent resin 198 for forming the absorption enhancing layer 26 in the selective particle dispersion means 103 shown in FIGS. 35 and 36. FIG. 3 is a simplified cross-sectional view of a portion near the bottom of the supply housing 203 taken along a perpendicular axis. It is a figure showing the vicinity of the transportation direction downstream end of supply pipe 207. It is a figure which shows the continuous supply means 137, the granulation means 138 containing the granule 191 and a part of the means 199 for guide collection | recovery. FIG. 37 is a front view showing a granule 191, a guide chute 193 and a collection hopper 195, which constitute a guide collection unit 199, as viewed from the left in FIGS. 35 and 36. It is a side view of the granule 191. FIG. 43 (1) is a left side view of the granule 191 and FIG. 43 (2) is a right side view of the granule 191. It is a figure which shows the structure and operation | movement of the granule 191 in a simplified manner. FIG. 17 is a plan view of the collection hopper 195. It is the front view seen from the axial direction outside in the granule 191 of the collection hopper 195. It is a left side view of the collection hopper 195. It is a right side view of the recovery hopper 195. It is the front view seen from the conveyance direction upstream of the 1st cutting machine 109. It is a side view of the 1st cutting machine 109. It is a development view of a die cutter roll 262 in the circumferential direction. It is a perspective view which shows the handling work sequence at the time of disposal after use of the liquid absorption sheet 11. It is a figure showing the sequential processing form of each process at the time of manufacture of liquid absorption sheet 11d of other forms. It is a diagram showing the sequential processing forms of each step during the manufacture of other forms of liquid absorbent sheet 11h in of al. Is a diagram showing the sequential processing forms of each step during the manufacture of other forms of liquid absorbent sheet 11k to is found. It is a figure showing liquid absorption sheet 11d1. It is a figure showing liquid absorption sheet 11d2. It is a figure which shows the liquid absorption sheet 11h1 suitable as a light incontinence pad and a sanitary napkin. It is a figure showing liquid absorption sheet 11h2 suitable as a urine pad for adults. It is a figure which shows the liquid absorption sheet 11h3 suitable as a breast milk pad. It is a figure which shows the liquid absorption sheet 11k suitable for the above-mentioned and other various uses for preventing leakage of the liquid to the outer peripheral part of liquid. It is a figure showing granular material 191c of other forms. It is a granule 191d of other forms. It is a granule 191e of other forms. It shows a granule application member 191f of other forms et of. It is a simplified circumferential developed view of the granule application body 191g of other forms et of. It is the simplified top view of absorber 12e of other forms. It is the simplified top view of 11 L of liquid absorption sheets of other forms. FIG. 2 is a simplified cross-sectional view of an absorbent body 1 in a disposable diaper, a sanitary product, or the like that is easy for those skilled in the art.

FIG. 1 is a perspective view of a liquid absorbing sheet 11 manufactured by the liquid absorbing sheet manufacturing apparatus according to one embodiment of the present invention, FIG. 2 is a plan view of the liquid absorbing sheet 11, and FIG. FIG. 3B is a front view of the liquid absorbing sheet 11, FIG. 3B is an enlarged front view of the liquid absorbing sheet 11 taken along a line A-A 1 in FIG. 3A, and FIG. FIG. 4 (2) is an enlarged rear view as viewed from the cutting plane line B-B1 of FIG. 4 (1), FIG. 5 (1) is a left side view of the liquid absorbing sheet 11, and FIG. 2) is an enlarged left side view as viewed from the section line C-C1 in FIG. 5 (1). The back surface of the liquid absorbing sheet 11 appears symmetrically with the plan view of FIG. 2, and the right side surface of the liquid absorbing sheet 11 appears symmetrically with the left side view of FIG. FIG. 6A is a simplified sectional view taken along section line VI-VI in FIG. 2, and FIG. 6B is an enlarged sectional view of section D in FIG. 6A. (3) is an enlarged sectional view of section E of FIG. 6 (1). The liquid absorbing sheet 11 is packaged as shown in FIGS. 7 and 8 described below, and excretes for receiving excrement such as urine and feces of the rabbit 16 (FIGS. 9 and 10) shown in FIGS. Used for device 17.

  The liquid absorbing sheet 11 is configured by sandwiching an absorber 12 between a top sheet 13 and a back sheet 14. For convenience of understanding, in the drawings, the absorber 12 covered by the top sheet 13 and the back sheet 14 is indicated by a solid line. The top sheet 13, the back sheet 14, the top sheet 13, and the back sheet 14 have a planar shape larger than the absorber 12 and are liquid-permeable. The back sheet may be liquid impermeable. The peripheral portion 21 of the top sheet 13 and the peripheral portion 22 of the back sheet 14 are bonded to each other by a hot-melt adhesive or the like in a bonding region indicated by reference numeral 24 in FIG. Or by heat fusion.

  The absorber 12 has a base layer 25 and an absorption enhancing layer 26. The absorption enhancing layer 26 is provided in a predetermined region corresponding to the absorption enhancing layer 26 on the base layer 25 on the side of the top sheet 13 of the base layer 25 (upper side in FIG. 6). The absorber 12 has a substantially uniform and flat thickness over the entire planar shape. The fibrous absorbent of the base layer 25 is made of cotton-like pulp or fluff pulp, and the liquid absorbent resin is made of, for example, a polymer polymer such as sodium polyacrylate and is granular. In the base layer 25, the fibrous absorbent and the liquid absorbent resin may be distributed at a uniform ratio per unit area, and may be uniformly mixed throughout the base layer.

The urine of the rabbit 16 contains calcium, and the urine volume is 20 to 350 mL / kg of body weight / 24 hours, and the average is 130 mL / kg of body weight / 24 hours. Corresponding to this urine amount, the cotton-like pulp constituting the base layer 25 has a basis weight of 50 to 300 g / m ² , and the granular liquid-absorbent resin polymer polymer has a basis weight of 20 to 150 g / m ² . . The powdery liquid absorbent resin constituting the absorption enhancing layer 26 has a basis weight of 20 to 200 g / m ² of the polymer. The particle size of the granular liquid absorbent resin of the base layer 25 and the absorption enhancing layer 26 may be, for example, 3 μmφ to 0.3 mφ.

  The base layer 25 may also have a configuration in which a fibrous absorbent layer and a liquid absorbent resin layer are stacked over a plurality of layers in the thickness direction and integrated. The liquid absorbent resin constituting the absorption enhancing layer 26 which is the predetermined region may be the same substance as the liquid absorbent resin contained in the base layer 25, or may be different.

  The absorber 12 is also sandwiched by the first sheet 27 and the second sheet 28. The first and second sheets 27 and 28 have a function of diffusing urine and spreading the whole. The first and second sheets may be tissue or the like. The first sheet 27 is disposed above FIG. 6 over the predetermined area where the absorption enhancement layer 26 is formed and the remaining area of the base layer 25. The second sheet 28 is disposed over the entire lower surface of the base layer 25 in FIG.

  In FIGS. 2 to 5 and the like, for convenience of understanding, the continuous long absorber 12 sandwiched by the top sheet 13 and the back sheet 14 is individually shown by a solid line, and the absorption enhancement layer 26 is formed. Is also indicated by a solid line.

  Each of the absorbers 12 has an overall planar shape that is substantially a right-angled isosceles triangle, and has a shape approximating a right-angled isosceles triangle. This right-angled isosceles triangle has two equal sides 31, 32 sandwiching the right angle, and a hypotenuse 33, which is the bottom side. The extending portion 34 continues to the apex portion 35, and extends in a direction away from the hypotenuse 33 (upward in FIG. 2). The above-mentioned predetermined regions are the vicinity of the apex 35 and the extension 34 of the right-angled isosceles triangle. The vicinity of the base corners 36 and 37 of the right-angled isosceles triangle is cut away in the direction away from the hypotenuse 33 (upward in FIG. 2) by the same length L2 (= L1) as the length L1 of the extension 34. Notches 38 and 39.

  The absorption enhancement layer 26 on the base layer 25 has a width W2 larger than the width W1 of the extending portion 34 in the left-right direction in FIG. The length L3 of the absorber 12 in FIG. 2 is twice as long as the vertical length L4 of the absorption enhancing layer 26 in FIG. 2 (L3 = 2 · L4).

The region of the absorption enhancement layer 26 that extends beyond the width W1 of the extending portion 34 in the width W2 is indicated by a virtual line in FIG. 2, and the region indicated by the virtual line is the width of the bottom corner portions 36 and 37. It corresponds to the bottom corner partial areas 41 and 42 having W3 and W4 (W3 = W4, W2-W1 = 2 · W3). In the form status of this, by the W2> W1, even at low accuracy of the cutting position of the individual absorbent 12 per, on the entire surface and extending portion 34 over its vicinity, the fluid-absorbent resin with granule application absorbed It is ensured that the enhancement layer 26 is also formed. In another embodiment, W1 = W2, and the regions 41 and 42 near the bottom corners 36 and 37 may be eliminated (W3 = W4 = 0).

  The width W5 of each of the peripheral portions 21 and 22 of the top sheet 13 and the back sheet 14 has substantially the same value over all the peripheral edges of the absorber 12. The liquid absorption sheet 11 and the absorber 12 are configured to be plane-symmetric with respect to the symmetry plane 44 in FIG. The symmetry plane 44 passes through the apex of the right-angled isosceles triangle, includes an axis perpendicular to the hypotenuse, and exists on the absorption enhancement layer 26.

  The extending portion 34 of the absorber 12 has extending side edges 51 and 52 that are continuous with the above-described equilateral sides 31 and 32 and are perpendicular to the oblique side 33 and an extending top 53. The extending top 53 is perpendicular to the extending sides 51 and 52. The equal sides 31, 32 and the oblique side 33 are connected to the notched sides 54, 55 of the notched parts 38, 39.

  According to the basic concept in the first embodiment of the present invention, the extending side edges 51 and 52 are parallel to the vertical direction in FIG. 2, and the cutout sides 54 and 55 are parallel to the vertical direction in FIG. The extending sides 51 and 52 and the notched sides 54 and 55 are parallel to each other, and are perpendicular to the hypotenuse 33. The problems encountered in the first embodiment will be described. The elongated absorber 12c is cut between the die cutter roll 262 and the anvil roll 263 of the first cutter 109 shown in FIG. 49 described later to extend the side edges 51, 52 and the notched sides 54, 55. Is formed, the tip of the rotary blade 133 exists linearly in an imaginary plane including the rotation axis of the die cutter roll 262. For this reason, there is a problem that an excessive compression impact force acts on the rotary blade 133 by the opposing anvil roll 263 and the tip thereof may be damaged. When the extending top 53, the equilateral sides 31 and 32, and the oblique side 33 are formed by cutting, the tip of the rotary blade 133 does not exist in a straight line in a virtual plane including the rotation axis of the die cutter roll 262. , Intersects the virtual plane, the above problem does not occur.

  In the second embodiment of the present invention, the tip of the rotary blade 133 is provided with a die cutter roll 262 in order to avoid the above-described problem that occurs when cutting the extending sides 51 and 52 and the notched sides 54 and 55. Are not arranged in a straight line in a virtual plane including the rotation axis, but intersect with the virtual plane. Thereby, the tip of the rotary blade 133 of the first cutter 109 shown in FIG. 49 moves the cutting position of the long absorber 12c between the anvil roll 263 and the die cutter roll 262 and the rotation of the anvil roll 263. Accordingly, as the long absorbent body 12c moves in the transport direction, that is, the flow direction by the first belt conveyor 96, in a manner similar to the cutting operation with scissors, the width direction of the long absorbent body 12c (the horizontal direction in FIG. 2). ). Therefore, it is possible to prevent the tip of the rotary blade 133 from being damaged during the cutting of the absorber. 1 and 2 in the second embodiment, the extending sides 51 and 52 of the absorber 12 extend away from each other as going upward in FIG. 2, and the notched sides 54 and 55 extend. In accordance with the shapes of the existing sides 51 and 52, they extend closer to each other as it goes downward in FIG. In the third embodiment of the present invention, the extending side edges 51, 52 and the notched edges 54, 55 extend in mutually opposite directions to the second embodiment of FIGS. It may be formed. The continuous portions 57 to 59 in which the equilateral sides 31 and 32 are continuous with the extending side sides 51 and 52 and the notched sides 54 and 55 are formed with roundness. A second cutting machine 119 described below for cutting the top sheet 13 and the back sheet 14 of the liquid absorbing sheet 11 also performs the cutting of the top sheet 13 and the back sheet 14 according to the concept of the first cutting machine 109 described above. It is composed of

  In the present specification, in the broad concept including the configurations in the first to third embodiments of the present invention, the extending side edges 51 and 52 are substantially parallel to the vertical direction in FIG. May be described as being substantially parallel to the up-down direction in FIG. 2, and therefore, the extending sides 51, 52 and the notched sides 54, 55 are substantially perpendicular to the hypotenuse 33.

  As an example of the dimensions, the width W of the extending portion 34 in FIG. 2 of the absorber 12 is 4 cm, the width W2 of the absorption enhancing layer 26 is 5.5 cm, the width W6 of the hypotenuse 33 is 29 cm, and the width W5 of the peripheral portions 21 and 22 is shown. = 2 cm, the length L1 of the extending portion 34 and the length L2 of the notch portions 38 and 39 may be 3 cm, and the length L4 of the absorption enhancing layer 26 may be 10 cm.

  FIG. 7 is a simplified perspective view showing a state where the folded absorber 12 is stored in the individual packaging bags 45, and FIG. FIG. 4 is a simplified perspective view showing a package 50 stored in the package. With reference to these drawings, a configuration related to the first and second integrated bodies 47 and 48 will be described. In the present specification, the reference numerals are denoted by subscripts a, b,..., And the subscripts a, b,. The first integrated body 47 has a configuration in which a first plurality of, for example, fifteen, liquid absorbing sheets 11a are stacked in a first identical posture shown in FIG. 8 in a state of being folded with respect to the symmetry plane 44a. The liquid absorbing sheet 11a has a posture in which the symmetry plane 44a is on the left side in FIG. 8 and the extending portion 34a is downward. The second integrated body 48 has a second pluralities, for example, the same as the above-mentioned first pluralities, for example, fifteen liquid absorbing sheets 11b are folded in the second identical state with respect to the symmetry plane 44b. It is configured to be integrated in posture. The symmetry plane 44b is on the right side in FIG. 8, and the extending portion 34b is on the upper side in FIG. The equal sides 31a and 32a of the liquid absorbing sheet 11a of the first integrated body 47 and the equal sides 31b and 32b of the liquid absorbing sheet 11b of the second integrated body 48 face each other so as to be stored and covered in the packaging bag 49. The extended portion 34a of the liquid absorbing sheet 11a of the first integrated body 47 and the notches 38b, 39b of the liquid absorbing sheet 11b of the second integrated body 48 are arranged to face each other. The notch portions 38a and 39a of the liquid absorbing sheet 11a and the extending portion 34b of the liquid collecting sheet 11b of the second integrated body 48 are in a state where they are arranged to face each other. In this way, the package 50 is substantially a cube or a substantially rectangular parallelepiped, which facilitates transportation and handling, and eliminates useless dead space during transportation and storage.

  In the above-described embodiment, the width W5 of the peripheral portions 21 and 22 is substantially the same over all the sides 31, 32 and 51 to 55 of the absorber 12, but in another embodiment of the present invention, The value may be different for each side. For example, the value may be larger in the vicinity of the extending portion 34 than in other portions, or may be larger in the vicinity of the notches 38 and 39 than in other portions. You may.

  FIG. 9 is a simplified perspective view of the excretory device 17 for a rabbit, which is a pet, and FIG. 10 is a partially cutaway cross-sectional view of the excrement device 17 as viewed from a simplified side. The excretion device 17 is basically a container 61 made of synthetic resin or the like, a liquid absorbing sheet 11 laid replaceably in the container 61, and is disposed above the liquid absorbing sheet 11 and detachably attached to the container 61. And a sandboard member 62. The rabbit 16 has a size such that it fits on the palm of a human hand, for example, and has a weight of 1.5 to 3 kg, for example.

  FIG. 11 is a simplified perspective view of the excretion device 17. The liquid absorbing sheet 11 is laid on the container 61. In FIG. 11, the paddle member 62 is omitted.

  12 is a plan view of the container 61, FIG. 13 is a front view of the container 61, FIG. 14 is a left side view of the container 61, FIG. 15 is a bottom view of the container 61, and FIG. FIG. 6 is a cross-sectional view taken along line XVI-XVI of FIG. The container 61 basically includes a bottom member 63 having a planar shape of a substantially right-angled isosceles triangle, a front wall 64 extending upward along the outer periphery of the bottom member 63 and connected to the bottom member 63, and side walls 65 and 66. Having. The front wall 64 is located on the oblique side of a substantially right-angled isosceles triangle of the bottom member 63, and the side walls 65 and 66 correspond to a pair of equal sides. The side walls 65 and 66 are formed higher toward the back (upward in FIGS. 12 and 15 and leftward in FIG. 14), thereby preventing the excrement of the rabbit 16 from scattering behind the container 61. As shown in FIGS. 9 and 10, the rabbit 16 has its buttocks facing the rising corners of the side walls 65 and 66 near or at the top corner 85 of the bottom member 63 or hitting the rising corners. Has the habit of taking an excretion posture facing The excrement such as urine is excreted toward the back as indicated by the arrow 68, falls through the through hole 69 (see FIGS. 16 and 19) of the pen member 62, and falls onto the liquid absorbing sheet 11. .

  A protruding portion 71 protruding outward is formed on an upper portion of the front wall 64, and a protruding portion 72 connected to the protruding portion 71 is formed on both side walls 65 and 66 so as to protrude outward.

  17 is a plan view of the bed member 62, FIG. 18 is a front view of the bed member 62, and FIG. 19 is a right side view of the bed member 62. The paddle member 62 is formed by welding a linear body such as a wire, and has a frame member 74 substantially corresponding to the shape of the bottom member 63 of the container 61 and a through hole 69 fixed to a lower portion of the frame member 74, respectively. (For example, 7 to 10) supporting members 75 and 76 that intersect each other.

  FIG. 20 is a partially cutaway sectional view showing a state in which the frame member 74 is fitted and locked in the locking groove 82. The locking groove 82 is formed to extend inwardly over the front wall 64 and the side walls 65 and 66 of the container 61 and to be annularly concave in a virtual plane parallel to the bottom member 63. The frame member 74 of the paddle member 62 is fitted and locked in the locking groove 82 by the elastic force of the frame member 74 and the container 61. This prevents the sliding member 62 from moving or detaching from the container 61 when the rabbit 16 moves, and also replaces the sliding member 62 with the container 61 when the liquid absorbing sheet 11 on the bottom member 63 is replaced or replaced. Easy to remove from

  The container 61 has a space 87 opened above the bottom member 63, and the space 87 has a size that accommodates at least the rabbit 16 that is a pet in the excretion posture. In the excretion posture of the rabbit 16, the whole body of the rabbit 16 is in a state where it can ride on the bed member 62. The extending portion 34 of the liquid absorbing sheet 11 and the peripheral edges 21 and 22 near the extending portion 34 curve upward from the bottom member 63 along the side walls 65 and 66 near the apex portion 85 of the bottom member 63. Extend. Peripheral portions 21 and 22 near at least equal sides 31 and 32 connected to the extending portion 34 extend upward from the bottom member 63 along the side walls 65 and 66 and further along the front wall 64. These upwardly extending peripheral portions 21 and 22 are located below the support members 75 and 76 of the pen member 62, and are in a state where the rabbit 16 cannot be grasped or eaten by the mouth.

FIG. 21 is a diagram illustrating a manufacturing apparatus 91 for manufacturing the liquid absorbing sheet 11 according to an embodiment of the present invention and a processing form in a manufacturing process. The manufacturing apparatus 91 for the liquid absorbing sheet 11 basically includes an apparatus 92 for manufacturing the absorber 12 as shown in FIG. 21a and a part of FIG. 21b, and the absorber 12 obtained by the manufacturing method. It includes a sheet sandwiching device 93 for sandwiching the sheet with the sheet 14, and a folding packing device 94 for folding and packing the individual liquid absorbing sheets 11 obtained thereby.

  In the absorber manufacturing apparatus 92, first and second sheet supply means 98 and 99 for supplying the first and second sheets 27 and 28, respectively, are provided downstream and upstream. The first and second sheet supply means 98 and 99 contact the first and second sheets 27 and 28 wound in a roll form by sliding one end of an endless drive belt on the outermost periphery thereof. , At a supply speed corresponding to the transport speed of the first belt conveyor 96. The second sheet 28 is supplied from the second sheet supply unit 99 onto the conveyor belt 97, and a continuous long strip-shaped base layer 25 is supplied onto the second sheet 28. The width of the base layer 25 has the length L3 of the absorber 12 (FIG. 2). The base layer 25 has a flat structure in which the fibrous absorbent and the liquid absorbent resin are distributed at a uniform ratio per unit area. In the predetermined region 26 on the base layer 25, the granular liquid absorbent resin 104 is selectively dispersed by the selective particle dispersion means 103, and the absorption enhancing layer 26 is spaced apart in the transport direction of the first belt conveyor 96. And intermittently. In addition, they are formed alternately left and right in the width direction, that is, alternately. In FIG. 21 a, the base layer 25 before the absorption enhancing layer 26 is formed is indicated by reference numeral 102. The first sheet supply means 98 supplies and stacks the first sheets 28 from the first sheet supply means 98 in a state where the granular liquid absorbent resin 104 is arranged on the base layer 25.

  The base layer 25 on which the granular liquid-absorbent resin 104 conveyed by the first belt conveyor 96 is selectively disposed is pressed and compressed by a pair of rolls 107 of a first pressing machine 106. In this way, the base layer 25 on which the granular liquid absorbent resin 104 is disposed forms a flat, thin, strip-shaped long absorber 12c having a substantially uniform overall thickness. The thickness of the long absorber 12c is set by the first pressurizer 106. The long absorber 12c is transported by the second belt conveyor 108 and transported to the first cutting machine 109. The first cutting machine 109 cuts the long absorber 12c in the width direction, and obtains the individual absorbers 12a and 12b alternately in the width direction in mutually opposite postures.

  The transport speeds of the first and second belt conveyors 96 and 108 are the same value V96, and the transport speed V111 of the third belt conveyor 111 that transports the individual absorbers 12 cut by the first cutter 109 is: The value exceeds the transport speed V96 (V111> V96). Thereby, a space W7 is provided between the individual absorbers 12a and 12b cut by the first cutting machine 109 (W7 = 2 · W5, FIG. 2).

  In the sheet sandwiching device 93, the individual absorbers 12a and 12b separated by the interval W7 and conveyed by the third belt conveyor 111 are sandwiched by the continuous long top sheet 13 and back sheet 14, and the second pressing machine is used. The heating and pressurization by 113 are performed. The top sheet supply unit 114 and the back sheet supply unit 116 have a configuration similar to the first and second sheet supply units 98 and 99 described above. Are supplied at the supply speeds corresponding to. On the surface of the topsheet 13 from the topsheet supply unit 114 on the absorber 12 side, a hot melt adhesive is applied by a coating unit 115. Coating is performed over the entire width to the extent that the liquid absorbing performance is sufficiently exhibited, and the adhesive strength is improved. The hot melt adhesive is applied by another application means 117 to the surface of the back sheet 14 supplied from the back sheet supply means 116 on the absorber 12 side.

  In the application means 117, a plurality of linear coatings are applied at intervals in the width direction along the transport direction of the third belt conveyor 111. In the second pressing machine 113, the first and second sheets 27 and 28 and the peripheral portions 21 and 22 of the individual absorbers 12 can be integrated by melt-pressing and bonding using hot melt. The unevenness is formed on the pair of heating and pressing rolls. The continuous long band-shaped liquid absorbing sheet 11c obtained by sandwiching the individual absorbers 12a and 12b separated by the spacing W7 in the transport direction by the top sheet 13 and the back sheet 14 is formed by a belt press 118. The pressure is further increased while being conveyed while being held between a pair of upper and lower belts. At least the surface of the roll for pressurizing the second press 113 is made of a material having excellent releasability, for example, silicone rubber, so that the hot melt adhesive or the like does not adhere to and contaminate the roll. In another embodiment of the present invention, the second press 113 may not be heated.

  The second cutting machine 119 cuts the continuous belt-shaped long liquid absorbing sheet 11c into individual liquid absorbing sheets 11a and 11b.

  In the folding packing device 94, the individual liquid absorbing sheets 11 from the second cutting machine 119 are removed by the defective discharging device 121 and removed by the defective discharging device 121. The sheet is folded in half with the surfaces 44a and 44b as folds and folded in half.

  The folded liquid absorbing sheets 11a and 11b are aligned by the aligning devices 124 and 125 into first and second positions, respectively, which are point-symmetric with respect to each other for packing. Each of the liquid absorbing sheets 11 aligned by the aligning devices 124 and 125 may be further stored in an individual packaging bag, and thereafter, the first and second plural sheets are stacked by the accumulating means 126 and 127, respectively. Is accumulated. The first and second pluralities are, for example, substantially the same number, and may be fifteen as described above.

  After the first and second stacks 47 and 48 are formed by the stacking means 126 and 127 in this manner, the package 50 is completed by being stored in the packaging means 128 and packed in the packaging means 128, and then packed.

  According to this embodiment, the absorption enhancement layers 26a and 26b are alternately arranged on the long base layer 25 at intervals along the transport direction of the first belt conveyor 96 and on the left and right sides in the width direction, so to speak. Therefore, the individual liquid absorbing sheets 11a and 11b are sequentially attached to the long liquid absorbing sheet 11c in the conveying direction and in opposite directions in the width direction. Manufactured in point symmetry. Therefore, the structure for forming the first and second integrated bodies 47 and 48 by folding and aligning the liquid absorbing sheets 11a and 11b can be simplified, and the equilateral sides 31 and 48 of each of the integrated bodies 47 and 48 can be simplified. An excellent effect of simplifying the configuration for arranging the points 32 in a point-symmetric manner with each other is achieved. Moreover, the continuous strip-shaped long absorber 11c, the top sheet 13 and the back sheet 14 have no wasteful portions to be discarded.

  FIG. 22 is a block diagram for explaining the operation of the control circuit of the absorber manufacturing apparatus 92. A detection signal from a cutting position detector 132 representing an individual cutting position of the long absorber 12c cut by the first cutting machine 109 is given to a processing circuit 131 realized by a sequencer or a microcomputer. . The cutting position detector 132 may be configured to detect a rotation angle of a rotary blade 133 (FIGS. 49 to 50 described later) included in the first cutting machine 109. The processing circuit 131 is connected to a display / input unit 135 that achieves both display and input operation for control.

  The selective spraying means 103 includes a continuous supply means 137 for continuously supplying the granular liquid absorbing resin, and a spraying method in which the granular liquid absorbing resin is sprayed in a predetermined area to form the absorption enhancing layer 26. Means 138. The continuous supply means 137 includes a supply motor 139 that achieves a rotation speed corresponding to the flow rate of the particulate liquid absorbent resin. The supply motor 139 is driven by an inverter 141 that responds to a control signal from the processing circuit 131. You. In order to determine the supply position of the granulation means 138 along the transport direction of the first belt conveyor 96, a granulation motor 142 realized by a transport-controllable servomotor or the like includes a servo circuit controlled by the processing circuit 131. 143.

  FIG. 23 is a simplified plan view of a continuous long absorber 12c supplied from the first press 106, FIG. 24 is a front view of the long absorber 12c shown in FIG. FIG. 26 is a rear view of the long absorber 12c shown in FIG. 23, and FIG. 26 is a cross-sectional view taken along section line 2VI-2VI in FIG. In FIG. 23, for convenience of illustration, cutting lines 145 to 148 indicating cutting positions by the first cutting machine 109 are shown by solid lines, and also in FIGS. 24 and 25, cutting lines 145 to 148 are shown by solid lines. . The absorber manufacturing apparatus 92 manufactures the continuous long absorber 25c in this manner.

  FIG. 27 is a schematic cross-sectional view exaggeratedly drawn to make it easier to understand the state in which the granular liquid-absorbent resin is dispersed on the base layer 25. The thicknesses TH1 and TH2 of the granular liquid absorbent resin forming the absorption enhancing layer 26 are the same predetermined values on the base layer 25 (TH1 = TH2). Although the granular liquid absorbent resin dispersed on the base layer 25 is shown in FIG. 27 as having a significantly raised thickness TH1 and TH2 in FIG. 27 for convenience of understanding, in the embodiment, the first pressurizing machine is used. Before the pressurizing operation by 106, the value is relatively small.

  FIG. 28 is a simplified cross-sectional view of a continuous long absorber 12c pressed by the first press 106. 27 is pressed together with the base layer 25 by the first pressing device 106 to enter the base layer 25 and become almost flat, and the absorption enhancement layer 26 is separated from the base layer 25. It does not substantially rise above FIG. In FIG. 28, the base layer 25 is mixed with the fibrous absorbent material 151 with the granular liquid absorbent resin 152 mixed at a uniform ratio of volume or mass, and thus at a uniform ratio per unit area.

  FIG. 29 is a plan view of a continuous band-shaped long liquid absorbing sheet 11c immediately before the second cutting machine 119 after being sequentially pressurized by the second pressing machine 113 and the belt pressing machine 118. 30 is a front view of the long liquid absorbing sheet 11c shown in FIG. 29, FIG. 31 is a rear view of the long liquid absorbing sheet 11c shown in FIG. 29, and FIG. 32 is a long view of FIG. It is a side view of the liquid absorption sheet 11c of FIG. FIG. 33 is a cross-sectional view taken along section line 3III-3III in FIG. In FIG. 29, cutting lines 154 to 157 at positions cut by the second cutting machine 119 are indicated by solid lines for convenience of understanding. On the long liquid absorbing sheet 11c, the individual liquid absorbing sheets 11a and 11b are formed adjacent to each other in a point-symmetric manner in the width direction in a mutually opposite posture in the conveying direction. Become.

  FIG. 34A is a simplified perspective view of the base layer manufacturing means 101 for manufacturing the base layer 25. Referring also to FIG. 21a described above, the base layer production means 101 supplies the mixed absorbent 162 by mixing the granular liquid absorbent resin 152 into the fibrous absorbent 151 at a uniform ratio over the entirety. A suction drum 163 for forming a continuous long strip-shaped base layer 25 using the material supply means 161 and the mixed absorbing material 162, a motor 164 for rotating the suction drum 163 at a predetermined constant speed; Negative pressure means 165 for negatively sucking the mixed absorbent 162 from the inside of the drum 163; In the mixed absorbent supply means 161, a fibrous absorbent 168 such as a sheet-like fluff pulp is sandwiched and supplied by a pair of rotationally driven supply rolls 166 and 167, and pressed against a rotary blade 169 to form a cotton-like absorbent. It is pulverized into a fibrous absorbent 151. The rotational drive speed of the supply rolls 166 and 167 by the motor 171 corresponds to the layer thickness of the base layer 25 and the supply flow rate. The granular liquid absorbent resin 152 is supplied from the supply source 172 at a predetermined flow rate such that the predetermined ratio with the fibrous absorbent 151 becomes uniform. The layer thickness of the base layer 25, that is, the layer thickness of the mixed absorbent 162 formed by negative pressure suction on the outer peripheral surface of the suction drum 163, is adjusted by adjusting the rotational driving speed of the supply rolls 166, 167 by the motor 171. This is set by adjusting the supply flow rate of the mixed absorbent 162 from the mixed absorbent supply means 161 onto the suction drum 163.

  The suction drum 163 has a straight cylindrical shape, has a horizontal rotation axis, and has a large number of suction holes 174 uniformly distributed over the entire circumference. The diameter of each suction hole 174 is selected to be a size that does not allow the mixed absorbent 162 to pass through. The mixed absorbent 162 is continuously supplied from above the suction drum 163 onto the outer peripheral surface. The suction drum 163 may be realized by a straight cylindrical net or the like.

  In the negative pressure means 165, a plurality of, for example, two negative pressure boxes 176 and 177 are arranged at fixed positions adjacent to the inside of the suction drum 163 in the circumferential direction. Each of the negative pressure boxes 176 and 177 has an upward suction port facing the inner peripheral surface of the suction drum 163, and the suction port extends in the circumferential direction of the suction drum 163 and in the axial direction. The negative pressure tubes 181 and 182 are connected to one ends of the suction drums 163 in the negative pressure boxes 176 and 177 in the rotation axis direction, respectively, and are commonly connected to a negative pressure source 183 such as a fan. The other end of the suction drum 163 in the negative pressure boxes 176 and 177 in the rotation axis direction is provided with partition dampers having a variable opening area for adjusting the suction negative pressure. Flow control valves 187 and 188 for adjusting the suction negative pressure value of the suction port, and therefore the suction strength, are interposed in each of the negative pressure pipes 181 and 182. For example, the absolute value P1 of the suction negative pressure in the negative pressure box 176 disposed upstream in the rotation direction 184 of the suction drum 163 is set to a value equal to or greater than the absolute value P2 of the suction pressure in the adjacent downstream (P1 ≧ P2).

  The angles A2 and A3 in FIG. 21a indicate the circumferential angles at which the suction ports of the negative pressure boxes 176 and 177 face the suction holes 174 of the suction drum 163. The upstream negative pressure box 176 causes the mixed absorbent 162 to be adsorbed on the outer peripheral surface of the suction drum 163. The downstream negative pressure box 177 holds the mixed absorbent 162 adsorbed on the suction drum 163 while preventing the mixed absorbent 162 from dropping from the outer peripheral surface of the suction drum 163 by its own weight.

  In relation to the first belt conveyor 96, the transport belt 97 shown in FIG. 21A has air permeability, and a transfer negative pressure box 186 is disposed below the upper stretch portion. The negative pressure suction of the transfer negative pressure box 186 causes the continuous long band-shaped mixed absorbing material 162 adsorbed on the outer peripheral surface of the suction drum 163 to be moved and transferred onto the transport belt 97.

  A rotary brush 179 is provided outside the suction drum 163. The rotating brush 179 scrapes off excess mixed absorbent 162 adsorbed on the outer peripheral surface of the suction drum 163. The rotation direction 185 of the rotating brush 179 is determined so as to be the same as the rotation direction 184 of the suction drum 163 at the position of the suction drum 163 opposed thereto, and the scraped excess absorbent 162 is returned onto the suction drum 163. .

  FIG. 34 (2) is a simplified perspective view of a part of the base layer manufacturing means 101a for manufacturing the base layer 25 according to another embodiment of the present invention. In this embodiment, a shielding plate 178 formed in an arc shape along the outer peripheral surface of the suction drum 163 is fixed on the suction drum 163. The shielding plate 178 blocks the area of the suction hole 174 of the suction drum 163 corresponding to the shape. The mixed absorbing material 162 is not laminated on the shielding plate 178, and a desired region where the mixed absorbing material 162 is not adsorbed can be formed. For example, by providing a shielding plate 178 that extends over the entire length in the rotation axis direction on the suction drum 163, the first base belt 96 is intermittently arranged in the transport direction, and is separated by the base layer 25 separated at intervals in the transport direction. It is also possible to sequentially manufacture a single single absorber 12. The rotating brush 179 is arranged such that its outer peripheral surface is separated from the outer peripheral surface of the suction drum 163 by a value that is at least equal to the thickness of the shielding plate 178 and is very close to the thickness, thereby preventing collision between the two. . Therefore, the upper limit of the thickness of the mixed absorbent 162 absorbed on the suction drum 163 is substantially equal to the thickness of the shielding plate 178. The shielding plate 178 may have a thickness of about 5 to 20 mm.

  FIG. 35 is a side view of the selective granulation means 103, and FIG. 36 is a plan view of the selective granulation means 103. 35 and 36 show a partially cut-away cross section. The selective granulation unit 103 includes a granule 191 that drops, supplies, and granulates the granular liquid absorbent resin onto the base layer 25 conveyed by the first belt conveyor 96 to form the absorption enhancing layer 26; A continuous supply means 137 for continuously supplying the granular liquid absorbent resin into the granules 191, and a guide shooter 193 as a guide member for guiding the liquid absorbent resin from the continuous supply means 137 (see FIG. 13, FIG. 40).

  In the guide / recovery means 199, the granules 191 are provided with a collection gutter 194 and a collection hopper 195 (see FIGS. 37 and 40) for receiving and collecting the granular liquid-absorbent resin collected by the collection gutter 194. . The granular liquid absorbent resin from the collection hopper 195 is transported by the transport means 196. The granule 191 is driven to rotate around the horizontal axis by the rotation driving means 197.

  The transportation means 196 includes a transportation duct 279 connected to the discharge pipe 255 of the collection hopper 195, and a granular liquid interposed in the middle of the transport duct 279 to make the discharge pipe 255 a negative pressure and suck the negative pressure from the discharge pipe 255. A blow-off device 278 for pneumatically transporting the absorbent resin, and a cyclone 281 that collects the liquid absorbent resin pneumatically transported by the transport duct 279 and returns it to the storage tank 201. The blowing device 278 is realized by an ejector or the like to which air from the air compressor 277 is supplied.

  FIG. 37 is a block diagram showing a moving path of the granular liquid absorbent resin 198 for forming the absorption enhancing layer 26 in the selective particle dispersing means 103 shown in FIGS. 35 and 36. The granular liquid absorbent resin 198 stored in the storage tank 201 is guided to the supply housing 203 installed in the apparatus main body 202.

  FIG. 38 is a simplified orthogonal cross-sectional view of a portion near the bottom of the supply housing 203. On a supply bottom member 204 formed in a convex arc shape below the supply housing 203, a coil-shaped supply member 205 made of a wire that functions as a screw of a screw conveyor is disposed with a horizontal axis. . The coil-shaped supply member 205 is driven to rotate around the axis of the coil-shaped supply member 205 by a supply motor 139. As a result, the granular liquid absorbing resin on the supply bottom member 204 is continuously supplied to the granules 191.

  The coil-shaped supply member 205 passes through a horizontal straight cylindrical supply pipe 207 fixed to the apparatus main body 202 by a mounting bracket 206. At the downstream end of the supply pipe 207 in the supply direction, a supply hole 208 is formed in the granule 191 in common with each of the drums 228 and 229 described later.

  FIG. 39 is a diagram illustrating the vicinity of the downstream end of the supply pipe 207 in the transport direction. FIG. 39 (1) is a circumferential development of the supply pipe 207, and FIG. 39 (2) is supplied along a rotation axis of the granule 191 from a supply hole 208 formed in the supply pipe 207. It is a figure which shows the supply flow rate. The supply hole 208 is formed spirally and continuously over, for example, a range of 90 degrees in the granule 191 and includes a rotation axis as going from right to left from upstream to downstream (FIG. 39 (1)) in the supply direction. It extends diagonally downward from near the horizontal position. When the coil-shaped supply member 205 disposed over the entire length of the supply pipe 207 is driven to rotate around its axis, the supply hole 208 is moved from the supply hole 208 with the passage of time as shown in FIG. In the direction, the granular liquid absorbent resin 198 is continuously supplied at a constant supply flow rate. The horizontal axis of the granule 191, the axis of the coil-shaped supply member 205, and the axis of the supply pipe 207 exist on a common horizontal straight line. The storage tank 201, the supply housing 203, the coil-shaped supply member 205, the supply pipe 207, the supply motor 139, and the like constitute the aforementioned continuous supply means 137.

  FIG. 40 is a diagram showing the continuous supply means 137, the granulation means 138 including the granules 191 and a part of the means for guiding and recovering 199, and FIG. 138 and 199 are exploded perspective views, and FIG. 40 (2) is a partially exploded perspective view. FIG. 41 is a front view showing the granule 191 and the guide chute 193 and the collection hopper 195 constituting the guide and collection means 199 as viewed from the left in FIGS. 35 and 36. The granule 191 has two drums 228 and 229 in the rotational axis direction (left-right direction in FIG. 42) as a whole, and the annular end plate 232 of the drum 229 is attached to the disc-shaped driving member 211. Fixed. The driving member 211 is fixed to one end of the driving cylinder 212. The outer peripheral surface of the drive cylinder 212 is rotatably supported by a support cylinder 214 around a horizontal rotation axis by a bearing 213. The support cylinder 214 is fixed to the apparatus main body 202. A timing pulley 215 is fixed to the other end of the driving cylinder 212. A timing belt 216 (FIG. 36) is wound around the timing pulley 215, and another timing pulley 217 is rotationally driven by a particle-spreading motor 142 realized by a servomotor or the like capable of adjusting speed and phase. Is done. By the operation of the processing circuit 131, the dispersion speed of the granule 191 is adjusted around the axis thereof, and the phase related to the position along the conveyance direction of the absorption enhancement layer 26 on the base layer 25 and the absorption enhancement layer 26 on the base layer 25 is adjusted. It is driven to rotate continuously.

  In the guide collection means 199, a guide chute 193 common to the drums 228 and 229 and a common collection hopper 195 are mounted on the mounting member 221 so that the angular position thereof can be adjusted in the internal space of the granule 191. The attachment member 221 is connected to one end of the fixed cylinder 222. The fixed cylinder 222 is coaxially inserted through the central insertion hole 223 of the driving member 211, and is supported on the inner surface of the driving cylinder 212 by another bearing 224. The other end of the fixed cylinder 222 is fixed to a fixing bracket 225. The fixing bracket 225 is fixed to the apparatus main body 202 using fixing columns 226 and bolts 227. Thus, the fixed cylinder 222 is fixed to the apparatus main body 202 so as not to rotate around its axis. The supply pipe 207 is inserted into the fixed cylinder 222.

  FIG. 42 is a side view of the granule 191, FIG. 43 (1) is a left side view of the granule 191, and FIG. 43 (2) is a right side view of the granule 191. Referring to these drawings, annular end plates 231 and 232 are arranged at both axial ends of one of the drums 228 and the other drum 229 in the granule 191, and another is provided at the center position in the axial direction. Two annular end plates 233 are arranged. In one drum 228, a plurality (for example, six) of substantially U-shaped recovery gutters 194a are fixed at equal intervals in the circumferential direction along the axial direction between the end plates 231 and 233. In the other drum 229, the same plurality of, for example, six substantially U-shaped recovery gutters 194b extending in the axial direction between the end plates 232 and 233 are fixed at equal intervals in the circumferential direction. Dispersion holes 234a and 234b are formed between the recovery gutters 194a and 194b that are adjacent in the circumferential direction. The collection gutters 194a and 194b of these drums 228 and 229 have the same size and shape, and the particle size holes 234a and 234b have the same size and shape.

  FIG. 44 is a diagram schematically illustrating the configuration and operation of the granule 191. FIG. 44A is a simplified circumferential development view of each of the drums 228 and 229 of the granule 191. The collection gutters 194a and 194b and the particle-drilling holes 234a and 234b of the drums 228 and 229 are shifted by an angle Δθ1 in the circumferential direction (the left-right direction in FIG. 44A).

  FIG. 44 (2) is a diagram showing the absorption enhancement layers 26a and 26b formed on the base layer 25 conveyed by the first belt conveyor 96. The peripheral speed V 191 of the outermost periphery of the granule 191, the transport speed V 96 of the first belt conveyor 96, and their mutual phases correspond to the positions of the absorption enhancement layers 26 a and 26 b, and are further expressed by the following formula ( It is controlled by the processing circuit 131 so that 1) and (2) are achieved. The rotational drive of the selective granulation means 103 whose phase is adjusted by the processing circuit 131 is interlocked with the phase of the first cutter 109. The transport speed of the first belt conveyor 96 corresponds to the amount of movement of the first cutting machine 109 by 単 一 rotation per single absorber 12.

  The radius R of the granule 191, the number n of the granule holes 234 formed at equal intervals in the circumferential direction, the distance W26ab between the absorption enhancement layers 26a and 26b in the absorbers 11a and 11b adjacent in the transport direction (FIG. 23) 44 (2)), the following equation (1) regarding the travel time is satisfied.

  Referring again to FIGS. 40 and 41, guide chute 193 has an L-shaped cross section having a flat slide portion 200 and a mounting piece 236 thereof, and mounting portion 236 is fixed to mounting member 221. Mounting bolts 238 are respectively inserted into a pair of mounting long holes 237 formed in the mounting piece 236, and the mounting angle of the granules 191 with respect to a vertical plane, which is a virtual plane including a horizontal rotation axis, is adjusted. Can be set. The collection gutter 194 has a bottom member 241 that extends in the circumferential direction of the granule 191 and wall plates 243 and 244 that are connected to the upstream side and the downstream side in the rotation direction. The wall plate 243 on the downstream side in the rotation direction 242 is inclined and extends downstream in the rotation direction 242 toward the inside of the granule 191 in the radial direction. As a result, the granular liquid-absorbing resin continuously supplied from the supply hole 208 at the end of the supply pipe 207 is supplied and blocked from the dispersion hole 243 by the radially inner edge 245 of the wall plate 243. Can be done accurately.

  FIG. 45 is a plan view of the collection hopper 195, FIG. 46 is a front view of the granule 191 of the collection hopper 191 viewed from the outside in the axial direction, and FIG. 47 is a left side view of the collection hopper 195. 48 is a right side view of the collection hopper 195. The collection hopper 195 is common to the drums 228 and 229, and extends along the rotation axis thereof (in a direction perpendicular to the plane of FIG. 41 and FIG. 43 and in a horizontal direction in FIG. 42). The collection hopper 195 has an opening 247 opened upward to receive the granular liquid-absorbing resin that falls radially inward from the collection gutter 194 as the granules 191 rotate, and has an opening 247 opened upward. Member 248 having an L-shaped cross section (FIGS. 47 and 48) having a bottom 249 for receiving the conductive resin and a rising portion 250 on the upstream side in the rotation direction of the granule 191, and both ends of the granule 191 in the rotation axis direction The recovery end plates 251 and 252 have a shape curved along the inner peripheral surfaces of the annular end plates 231 and 232 at their portions, and the inclined side plates 253 and 254 connected from the receiving member 248 to the recovery end plates 251 and 252. On one side plate 252, a pair of mounting long holes 257 are formed in an arc shape around the rotation axis, and the angle of the particle 191 to the mounting member 221 with respect to one virtual plane including the rotation axis can be adjusted. . The collection end plates 251 and 252 are perpendicular to the axis of the granule 191. The open end 256 of the discharge pipe 255 is connected to the recovery end plate 251 on the outer side in the axial direction of the granule 191. The inclined side plates 253 and 254 are formed such that the distance D1 between them (FIG. 45) decreases toward the discharge pipe 255 outward in the axial direction of the granule 191. As a result, the granular liquid-absorbent resin dropped onto the receiving member 248 is smoothly moved toward the opening end 256 of the discharge pipe 255, and is easily discharged by the negative pressure suction of the discharge pipe 255. A plurality of (for example, four) suction holes 285 and 286 are formed in the driving member 211 of the granule 191 and the attachment member 221 at intervals in the circumferential direction. Is supplied through.

  FIG. 49 is a front view of the first cutting machine 109 as viewed from the upstream in the transport direction, and FIG. 50 is a side view of the first cutting machine 109. FIG. 51 is a development view of the die cutter roll 262 in the circumferential direction. In the first cutting machine 109, a die cutter roll 262 and an anvil roll 263 are rotatably provided on a cutting stand 261 by arranging their rotation axes in parallel in a vertical plane. Outer rings 264 provided at both ends in the axial direction of the die cutter roll 262 abut on the outer peripheral surface of the anvil roll 263, and the anvil roll 263 is driven to rotate. The die cutter roll 262 is rotationally driven by a driving source 283. A pair of rotary blades 133 are formed on the die cutter roll 262 in the circumferential direction so as to protrude radially outward in the circumferential direction. These rotary blades 133 are configured to be mutually plane-symmetric with respect to the symmetry plane 265, and are arranged so as to be shifted by 180 degrees around the axis of the die cutter roll 262. Each time the die cutter roll 262 makes one rotation, each rotary blade 133 anvils the long band-shaped absorber 12c continuous at the cutting lines 145, 146; 147, 148 described with reference to FIG. It cuts individually with the roll 263. The anvil roll 263 faces the die cutter roll 262 and has a right cylindrical outer peripheral surface.

The following equation (2) is established for the peripheral speed V133 of the blade edge of the rotary blade 133 of the first cutting machine 109 and the transport speed V96 of the first and second belt conveyors 96 and 108.

  The second cutting machine 119 also has a similar configuration corresponding to the individual liquid absorbing sheet 11 similar to the first cutting machine 109 for cutting the peripheral portions 21 and 22.

  FIG. 52 is a perspective view showing a handling operation sequence at the time of disposal after using the liquid absorbing sheet 11. As shown in FIG. 52A, in a state where the absorption-enhancing layer 26 of the liquid-absorbing sheet 11, particularly the absorption-enhancing layer 26, has swollen by absorbing a liquid such as urine, first, the vicinity of the base end of the extending portion 34 is parallel to the hypotenuse 33. Fold at the inner bent line 266. The internal fold line 266 may be located at a position along the longitudinal direction of the extending portion 34 in the absorption enhancing layer 26, or may be folded outside the absorption enhancing layer 26 as indicated by reference numeral 266a. FIG. 52B shows a state in which the extending portion 34 is folded. Further, the folded extending portion 34 is folded from the notched portions 38 and 39 along the inner bent lines 267 and 268 near the center, and the state shown in FIG. 52 (3) is obtained. Thus, in a state where the liquid absorbing sheet 11 has absorbed the liquid such as urine, the liquid absorbing sheet 11 can be folded and discarded without the operator's hands being stained by the absorption enhancing layer 26 or the like.

FIG. 53 is a diagram showing a sequential processing form of each step at the time of manufacturing the liquid absorbing sheet 11d of another form. Figure 54 is a diagram showing the sequential processing forms of each step during the manufacture of other forms of liquid absorbing sheet 11h in further. Figure 55 is a diagram showing the sequential processing forms of each step during the manufacture of other forms of liquid absorbing sheet 11k in further. The liquid absorbing sheet 11d in FIG. 53 is suitable as, for example, a light incontinence pad or the like, the liquid absorbing sheet 11h in FIG. 54 is suitable as an auxiliary urine absorbing pad or the like, and the liquid absorbing sheet 11k in FIG. It is suitable as such. The processing forms of FIGS. 53 to 55 respectively correspond to the sequential processing forms of the liquid absorbing sheet 11 shown in FIG. 21 described above.

  FIG. 56 is a view showing the liquid absorbing sheet 11d1, which is suitable as a baby diaper. FIG. 56 (1) is a plan view of the liquid absorbing sheet 11d1, and FIG. 56 (2) is a simplified view of the liquid absorbing sheet 11d1. FIG. 3 is a schematic cross-sectional view.

  FIG. 57 is a view showing the liquid absorbing sheet 11d2, which is suitable as a diaper for baby boys. FIG. 57 (1) is a plan view of the liquid absorbing sheet 11d2, and FIG. 57 (2) is a view of the liquid absorbing sheet 11d2. It is the simplified schematic sectional drawing.

  56 and 57, absorption enhancement layers 26d1 and 26d2 are provided on base layers 25d1 and 25d2 to form absorbers 12d1 and 12d2. Furthermore, the absorbers 12d1 and 12d2 are sandwiched between the top sheets 13d1 and 13d2 and the back sheets 14d1 and 14d2. 58 to 61 to be described later have a similar configuration. In this way, the absorption enhancement layers 26d1 and 26d2 can enhance the absorption amount and the absorption rate at the portion of the urine outlet of the human body. 56 and 57, a detachable planar adhesive tape 271 used for wearing on a human body is provided, and a crotch rubber 272 having elasticity for improving the wearability is provided.

  FIG. 58 is a diagram showing a liquid absorbing sheet 11h1 suitable as a light incontinence pad and a sanitary napkin. FIG. 58 (1) is a plan view of the liquid absorbing sheet 11h1, and FIG. 58 (2) is a drawing of the liquid absorbing sheet 11h1. It is the simplified schematic sectional drawing. The liquid absorbing sheet 11h1 shown in FIG. 58 can prevent a back leak at the time of sitting and at bedtime.

  FIG. 59 is a view showing a liquid absorption sheet 11h2 suitable as an adult urine pad. FIG. 59 (1) is a plan view of the liquid absorbing sheet 11h2, and FIG. 59 (2) is a simplified schematic cross-sectional view of the liquid absorbing sheet 11h2. The liquid absorbing sheet 11h2 in FIG. 59 prevents back leakage of urine flowing in the direction of the buttocks when sleeping for a long time at night.

  FIG. 60 is a diagram showing a liquid absorbing sheet 11h3 suitable as a breast milk pad. FIG. 60 (1) is a plan view of the liquid absorbing sheet 11h3, and FIG. 60 (2) is a simplified schematic cross-sectional view of the liquid absorbing sheet 11h3. In order to prevent breast milk from flowing from above to below in FIG. 60 (1) and leaking, an absorption enhancing layer 26h3 is provided in a lower region of the liquid absorbing sheet 11h3.

  FIG. 61 is a diagram showing a liquid absorbing sheet 11k suitable for the above-described and other various uses for preventing the liquid from leaking to the outer peripheral portion of the liquid. FIG. 61 (1) is a plan view of the liquid absorbing sheet 11k, and FIG. 61 (2) is a simplified schematic cross-sectional view of the liquid absorbing sheet 11k. In order to prevent the liquid from leaking to the outer peripheral portion, an absorption enhancing layer 26k is provided on the outer peripheral portion.

  The absorption enhancement layer 26 mainly disperses a large amount of liquid absorbent resin in the form of a liquid discharge port such as urine of a human body, thereby increasing the absorption amount and increasing the absorption rate. Therefore, it is possible to prevent the liquid from leaking outward, that is, to prevent the liquid from returning. Therefore, for example, in a state where the liquid absorbing sheet 11 is used in contact with the human body, it is possible to minimize adverse effects such as rash on the skin due to liquid such as urine.

FIG. 62 is a diagram illustrating a granule 191c according to another embodiment. FIG. 62 (1) is a simplified circumferential development of the granule 191c, and FIG. 62 (2) is a simplified plan view of the base layer 25a obtained by the granule 191c. In FIG. 62 (2), a cutting line 145a and the like are shown for convenience of understanding.

FIG. 63 shows another form of the granular material 191d. FIG. 63 (1) is a simplified circumferential development of the granule 191d, and FIG. 63 (2) is a simplified plan view of the base layer 25b obtained by the granule 191d. FIG. 63 (2) shows a cutting line 145b and the like for convenience of understanding.

FIG. 64 shows another form of the granule 191e. FIG. 64 (1) is a simplified circumferential development of the granule 191e, and FIG. 64 (2) is a simplified plan view of the base layer 25c obtained by the granule 191e. In FIG. 64 (2), a cutting line 145c and the like are shown for convenience of understanding.
FIG. 66 shows a related control table of each of the embodiments shown in FIGS.

Figure 65 is showing a granule application member 191f of other forms further. FIG. 65 (1) is a simplified circumferential development of the granule 191f, and FIG. 65 (2) is a simplified plan view of the base layer 25d obtained by the granule 191f. In FIG. 65 (2), a cutting line 145a and the like are shown for convenience of understanding.

Figure 66 is a circumferential development view simplified granule application body 191g of other forms further. 234 g of granulated holes are formed between the collection gutters 194 h.

FIG. 67 is a simplified plan view of another form of absorber 12e. The granulated holes corresponding to the shapes of the absorption enhancing layers 26m to 26q are formed in the granulated body.

FIG. 68 is a simplified plan view of another form of liquid absorbing sheet 11L. On the absorber 12, a plurality (for example, 4) extending in a fan-like manner so as to increase the mutual interval from the apex portion 35 of the extending portion 34 to the notches 38, 39 of the oblique side 33 as approaching. The groove 274 of the book is engraved. As a result, the liquid such as urine from the vicinity of the extending portion 34 can smoothly be dispersed and flow toward the hypotenuse 33, and can be quickly absorbed by the absorber 12. The concave groove 274 can be formed by pressure processing.

In other forms of et, approaching from the vicinity of the apex angle portion 35 of the absorber 12 is substantially isosceles right triangle planar shape of the whole may not have the extending portion 34 to the hypotenuse 33, the mutual spacing A plurality of concave grooves 274 that are inclined in a fan shape so as to spread are engraved. The concave groove 274 may be engraved on the absorber 12 from above the topsheet 13 or may be engraved only on the absorber 12. The absorption enhancing layer 26 may not be formed in the vicinity of the vertex 35.

The liquid absorbent sheet, in summary, the absorber,
A liquid-permeable topsheet having a planar shape larger than the absorber,
Sandwiched by a liquid-permeable or liquid-impermeable backsheet having a larger planar shape than the absorber,
The peripheral edge of the top sheet and the peripheral edge of the back sheet are adhered over the entire outer periphery of the absorber,
The absorber is
The fibrous absorbent and the liquid absorbent resin include a base layer distributed at a uniform ratio per unit area,
The overall planar shape of the absorber is a substantially right-angled isosceles triangle,
A plurality of grooves are formed so as to be inclined and extend so that the distance between them increases from the vicinity of the bottom corner to the hypotenuse.

  As the liquid flows along the plurality of grooves, it is absorbed over a wide area of the absorber. Therefore, the liquid absorption amount, the liquid absorption speed, and the like can be improved.

The following embodiment is possible for the liquid absorbing sheet manufactured by the liquid absorbing sheet manufacturing apparatus of the present invention.
(1) The liquid absorbing sheet is
The absorber is
A liquid-permeable topsheet having a planar shape larger than the absorber,
Sandwiched by a liquid-permeable or liquid-impermeable backsheet having a larger planar shape than the absorber,
The peripheral edge of the top sheet and the peripheral edge of the back sheet are adhered over the entire outer periphery of the absorber,
The absorber is
A base layer in which the fibrous absorbent and the liquid absorbent resin are distributed at a uniform ratio per unit area,
On the top sheet side, provided in a predetermined region on the base layer, having an absorption enhancing layer containing a liquid absorbent resin,
It is characterized in that the thickness of the absorber is substantially uniform.

  According to the present embodiment, the absorber sandwiched between the top sheet and the back sheet has a base layer and an absorption enhancing layer provided in a predetermined region on the top sheet side of the base layer. The absorber may be configured such that first and second sheets having liquid diffusivity are arranged above and below the absorber.

  The liquid absorbent resin constituting the absorption enhancing layer may be composed of particles having a particle diameter of, for example, micron order or milli order, or the fibrous absorbent constituting the base layer and the fiber of the liquid absorbent resin. The absorbent may have a composition in which the ratio of the absorbent is lower than that of the base layer, and may be manufactured by being pressed in the thickness direction with the absorption enhancing layer disposed on the base. In this way, the thickness of the absorber can be made thin and flat over the entire surface and substantially uniform.

  Therefore, the wearing feeling at the time of wearing by a person is good. In addition, it is easy to fold at the position on the absorption enhancing layer as a fold, which facilitates packing and transportation, and further facilitates disposal.

  As the fibrous absorbent of the base layer constituting the absorbent, for example, floc pulp or fluff pulp can be used. The liquid absorptive resin of the base layer may be, for example, a polymer synthetic polymer (abbreviated as SAP), a sodium polyacrylate-based, or a cellulose-based or starch-based. The liquid absorbing resin of the absorption enhancing layer may be the same substance as the liquid absorbing resin of the base layer, or may be a different substance. The liquid absorbent resin in the base layer and the absorption enhancing layer may have a particle size of, for example, 3 μmφ to 0.3 mmφ. The fibrous absorbent and the liquid absorbent resin in the base layer are distributed at a uniform ratio per unit area over the entire surface of the base layer. For example, the fibrous absorbent may be formed by mixing the granular liquid absorbent resin into the fibrous absorbent. Alternatively, a layer of the liquid absorbent resin may be integrated with a layer of the fibrous absorbent in a layer in the thickness direction. The above-mentioned first and second sheets sandwiching the base layer of the absorber and the absorption enhancing layer are made of, for example, tissue, tissue paper, diffusion paper, or the like, and may be a nonwoven fabric or the like excellent in water absorption and hydrophilicity.

  The top sheet and the back sheet may be a nonwoven fabric, tissue paper, or the like, or may be a resin film having a large number of through holes. The nonwoven fabric may be composed of cellulosic fibers such as pulp and other materials. The back sheet is made of, for example, a synthetic resin film and may be liquid-impermeable.

  At least one of the base layer and the absorption enhancing layer may contain a deodorant, a bactericide, or the like.

  The predetermined area on the base layer on which the absorption enhancement layer is provided is an area corresponding to a part of the human body that excretes and discharges excretions when the liquid absorbing sheet is used by being attached to a human body, or the liquid absorbing sheet according to the present invention. When the sheet is used in connection with a person, a pet, or the like, the liquid absorbing sheet may be determined corresponding to a position where a liquid such as excrement falls or is ejected in a state where the liquid absorbing sheet is installed at a fixed position, for example. .

(2) The liquid absorbing sheet is
The overall planar shape of the absorber is a substantially right-angled isosceles triangle,
An extension extending from the apex and extending away from the hypotenuse;
The predetermined region is near the apex of the right triangle and extends.
The vicinity of the bottom corner is a notch portion cut out by the same length as the extending portion in a direction away from the hypotenuse,
It is characterized by being symmetrical with respect to a symmetry plane passing through the apex and perpendicular to the hypotenuse.

  When excreting urine and other excrement in a living area, for example, a rabbit that is a pet finds a narrow space and turns its butt to the corner, or touches the butt to the corner, or touches the butt to the wall of the corner. It has a habit of taking a posture in which the butt is directed toward the space where the rear is closed or the butt is in contact with the wall surface of the closed space. When a rabbit is kept in a cage, the rabbit excretes at the right-angled corners in the living area of the cage, when the plan-view shape of the cage has right-angled corners, for example rectangular. According to the present invention, the planar shape of the container of the pet excretion device described later is substantially a right triangle or a substantially right isosceles triangle. Utilizing the habit of excretion, the apex is arranged so as to coincide with the right-angled corner of the cage, and the extension of the absorber is arranged near the apex on the bottom member in the container. This allows the extension to successfully receive and absorb the excrement. Since the planar shape of the container is a substantially right triangle or a substantially right isosceles triangle, the living area of the cage can be effectively used. According to another concept of the present invention, the planar shape of the container of the pet excretion device may have a right-angled corner, for example, a rectangular shape, and the extension of the absorber is arranged at this corner. .

  According to the present embodiment, it is particularly suitably used for absorbing liquid such as urine excreted by pets. This absorber has an overall planar shape of a substantially right triangle or a substantially right angle isosceles triangle, that is, a shape similar to a right angle isosceles triangle, and the predetermined region is near a vertex. The extension part is an absorption enhancing layer, and urine and the like are excreted, dropped, ejected and absorbed at this position. The vicinity of the bottom corner of the absorber is a cutout corresponding to, for example, a rectangular extension. In this way, the continuous long band-shaped absorber is cut by a cutting line having a common 45-degree inclined equilateral side with respect to the long direction of the absorber adjacent in the long direction, thereby obtaining a long absorption. An individual absorbent body can be manufactured without a waste part of the body. Not only the absorber 12 but also the liquid absorbing sheet 11 can be obtained by cutting the top sheet 13 and the back sheet 14 from a continuous long strip without wasting material.

  Further, since the absorber is configured to be plane-symmetric with respect to the symmetry plane on the axis passing through the apex and perpendicular to the hypotenuse, it is possible to fold the symmetry plane on the absorption enhancement layer in half, that is, to fold it into two. it can. In this way, a plurality of folded liquid absorbing sheets can be combined and packed as a rectangular body such as a cube or a rectangular parallelepiped, which facilitates transportation, transportation, and storage.

(3) The package of the liquid absorbing sheet is
In a package of a liquid absorbing sheet covering a plurality of the above liquid absorbing sheets with an exterior member,
A first integrated body in which the first plurality of liquid absorbing sheets are integrated in the first same posture in a state of being folded with respect to the symmetry plane;
A second integrated body in which a second plurality of liquid absorbing sheets substantially the same as the number of liquid absorbing sheets of the first integrated body are stacked in the second same posture in a state of being folded with respect to the symmetry plane;
Equal sides of the liquid absorbing sheet of the first integrated body and the equal sides of the liquid absorbing sheet of the second integrated body are arranged to face each other, and the extending portion of the liquid absorbing sheet of the first integrated body and the liquid absorption of the second integrated body The sheet is covered in a state where the notch portion of the sheet is opposed to the notch portion of the liquid collecting sheet of the first assembly and the extending portion of the liquid absorbing sheet of the second assembly is opposed to the notch portion. And an exterior member.

  According to the present embodiment, by combining the first and second integrated bodies, the entire outer shape can be configured as a rectangular body as described above. Therefore, it is easy to cover by inserting into an exterior member such as a packaging bag. This facilitates packing, transportation, and storage.

(4) The package of the liquid absorbing sheet is
The first and second laminates are formed by laminating the folded liquid absorbing sheets in a state of being individually stored in a packaging bag.

  According to the present embodiment, each individual liquid absorbing sheet is stored in an individual packaging bag, and each liquid absorbing sheet stored in such an individual packaging bag is the same as the first and second laminates described above. It may be configured and stored in a packaging bag, covered, or covered with a packaging material.

(5) Pet excretion device
(A) The planar shape is a substantially right-angled isosceles triangle, has a bottom member that does not allow liquid to permeate, and a wall that extends upward along the outer periphery of the bottom member so as to be continuous with the bottom member, and is open above the bottom member. A container having a space, the space having a size that accommodates at least a pet in an excretion position;
(B) The above-mentioned liquid absorbing sheet mounted on a bottom member of a container,
An extension and the bonded peripheral edge near the extension extend curvedly upwardly along the wall from the bottom member near the apex of the bottom member of the container;
A liquid absorbing sheet that is curved and extends upward along the wall from the bottom member at least in the vicinity of at least the same side connected to the extending portion.
(C) In the container, a paddle member is provided at an interval above the liquid absorbing sheet and has a through hole through which the excrement excreted while the pet is riding passes and falls. Features.

  According to the present embodiment, rabbits, cats, small animals such as cats and dogs absorb urine and feces liquid excreted by pets, and are disposed in pet cages or corners of buildings to clean the room. Can be kept. The space of the container has a size that allows the pet to ride on the cage member at the time of excretion at least in the excretion posture, that is, with a smaller external shape than during exercise. Pets have a habit of excreting excrement such as urine toward the vicinity of the apex of a bottom member having a planar shape that is a substantially right-angled isosceles triangle in a container. In accordance with the habit of the pet, a liquid absorbing sheet is disposed near the apex of the bottom member of the container, with the extending portion and the bonded peripheral edge near the equal side curved upward from the bottom member along the wall. Is done. Therefore, at the excretion ejection position of the excrement from the pet, the absorption enhancing layer can reliably absorb the liquid by increasing the absorption amount, absorption speed, and the like. As described above, the peripheral portion of the liquid absorbing sheet also extends upward from the bottom member of the container along the wall, so that excrement such as pet urine is absorbed and diffused from the wall and the bottom member to the peripheral portion. And is smoothly absorbed by the absorber.

DESCRIPTION OF SYMBOLS 11 Liquid absorption sheet 12 Absorber 13 Top sheet 14 Back sheet 17 Excretion device 25 Base layer 26 Absorption enhancement layer 27 First sheet 28 Second sheet 31, 32 Equilateral 33 Oblique 34 Extension 35 Top corner 36, 37 Bottom corner 38, 39 Notch 44 Symmetry plane 45 Individual packaging bag 47 First stack 48 Second stack 49 Packaging bag 50 Package 61 Container 62 Filler member 63 Bottom member 64 Front wall 65, 66 Side wall 69 Through hole 87 Space 91 Manufacturing apparatus 92 for liquid absorbing sheet 11 Manufacturing apparatus 93 for absorber 12 Sheet sandwich apparatus 94 Folding and packing apparatus 101 Base layer manufacturing means 103 Selection granulation means 106 First pressing machine 109 First cutting machine 113 Second pressing machine 119 Second cutting 137 Continuous supply means 138 Spraying means 151 Fibrous absorbent 152 Granular liquid absorbent resin 162 Mixed absorbent 163 Pull drum 165 vacuuming means 191 Chitsubutai 193 guide chute 194 collection trough 195 collection hopper 196 vehicle 197 rotation driving means 199 guiding recovery means 205 coiled supply member 207 supply tube 208 supplying hole 234 Chitsubuana

Claims (2)

Individual absorbers,
A liquid-permeable continuous long topsheet having a larger planar shape than the individual absorbers,
Sandwiched by a liquid-permeable or liquid-impermeable continuous long backsheet having a larger planar shape than the individual absorbers,
The peripheral portion of the long top sheet and the peripheral portion of the long back sheet are adhered over the entire outer periphery of the individual absorbent body to form a continuous band-shaped long liquid absorbing sheet,
Individual absorbers
A base layer in which the fibrous absorbent and the liquid absorbent resin are distributed at a uniform ratio per unit area,
On the long surface sheet side, provided in a predetermined area on the base layer, having an absorption enhancing layer containing a liquid absorbent resin,
The thickness of the individual absorber is almost uniform,
The overall planar shape of the individual absorber is a substantially right-angled isosceles triangle,
An extension extending from the apex and extending away from the hypotenuse;
The predetermined region is near the apex of the right triangle and extends.
The vicinity of the bottom corner is a cutout portion cut out by the same length L1, L2 as the extending portion in a direction away from the hypotenuse,
A liquid absorbing sheet manufacturing apparatus for manufacturing an individual liquid absorbing sheet configured to be plane-symmetric with respect to a symmetry plane passing through the apex and perpendicular to the hypotenuse,
(A) On the upstream conveyor, a strip-shaped long base layer continuous in the transport direction is manufactured, and the width of the long base layer is the length from the oblique side of the individual absorber to the extending top side of the extending portion. A base layer production means having L3;
(B) Particulate liquid absorption is selectively performed in the predetermined area adjacent to the long base layer on the upstream conveyor in the conveying direction and corresponding to the individual absorbers formed alternately left and right in the width direction. Selective granulation means for granulating the conductive resin,
(C) absorber forming means,
Pressing the dispersed long base layer over the entire planar shape to obtain a continuous strip-shaped long absorber,
A first die cutter roll formed with a pair of first rotary blades projecting radially outward in the circumferential direction corresponding to the overall planar shape of the individual absorber, and driven to rotate about the rotation axis;
A first anvil roll that has a rotation axis parallel to the rotation axis of the first die cutter roll, and is driven and rotated by the first die cutter roll;
Absorber forming means for cutting the first absorbent blade along the first cutting line to form individual absorbents while transporting the long absorbent between the first die cutter roll and the first anvil roll;
(D) liquid absorbing sheet forming means,
On the downstream conveyor having a downstream conveyance speed V111 exceeding the upstream conveyance speed V96 of the upstream conveyor, the individual absorbers from the absorber forming means are conveyed at an interval W7 to each other in the conveyance direction,
The individual absorbers on the downstream conveyor are sandwiched between the long topsheet and the long backsheet, and the peripheral edge of the long topsheet and the peripheral edge of the long backsheet are separated from the individual absorbers. Adhesive and pressurized over the entire outer periphery, to obtain a long liquid absorbing sheet,
A second die cutter roll formed with a pair of second rotary blades protruding radially outward in the circumferential direction corresponding to the overall planar shape of the individual liquid absorbing sheet, and driven to rotate about the rotation axis;
A second anvil roll that has a rotation axis parallel to the rotation axis of the second die cutter roll, and is driven and rotated by the second die cutter roll;
While the long liquid absorbing sheet is being conveyed between the second die cutter roll and the second anvil roll, a second cutting edge cuts the peripheral edge of the long top sheet and the peripheral edge of the long back sheet by the second rotary blade. And a liquid absorbing sheet forming means for forming individual liquid absorbing sheets by cutting the liquid absorbing sheet. The base layer manufacturing means includes:
(A1) a means for supplying a mixed absorbent by mixing a liquid absorbent resin into the fibrous absorbent at a uniform ratio per unit area;
(A2) a cylindrical suction drum arranged above the upstream conveyor,
From outside the suction drum, the mixed absorbent from the mixed absorbent supply means is supplied,
A suction drum in which a number of suction holes having a size through which the mixed absorbent does not pass are formed;
(A3) means for driving the suction drum to rotate about its axis;
(A4) In the rotating direction inside the suction drum, the mixed absorbing material is suctioned under a negative pressure over a circumferential angle A2, A3 from a position where the mixed absorbing material is supplied to the upstream conveyor, and the mixed absorbing material is absorbed on the upstream conveyor. The apparatus for manufacturing a liquid absorbing sheet according to claim 1, further comprising a negative pressure means for forming a long base layer of the material.

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