JP3628236B2 - Cleaning article and method for manufacturing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning article and a method for manufacturing the same. More specifically, the present invention relates to an article for cleaning and a method for producing the same, in which the average density of the fiber layer extending from the base sheet is increased so that the fiber layer has a volume and has an excellent ability to collect dust and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, some cleaning articles that are used by being attached to a cleaning mop or the like, or cleaning articles that are used while being held by hand, can be disposable after use.
[0003]
FIG. 6 shows a cross-sectional view of a disposable cleaning article in which a brush portion with a fiber layer is formed on the surface of a base sheet. This type of cleaning article is disclosed, for example, in JP-A-9-149873.
[0004]
In the cleaning article, a fiber layer 2 is joined to the surface of a base sheet 1 such as a nonwoven fabric containing heat-welding fibers by a welding wire 3, and a brush portion is formed by the fiber layer 2 extending from the welding wire 3. ing.
[0005]
In this method for manufacturing an article for cleaning, long fibers opened from a tow on a base sheet 1 are installed so that the fibers extend in the longitudinal direction (Y direction) of the base sheet 1. Then, the base sheet 1 and the long fiber layer are thermally welded by a plurality of welding wires 3, 3,... Spaced apart in the longitudinal direction and extending in parallel to each other, and then the adjacent welding wires 3 and welding wires. 3 cuts the long fiber layer. As a result, a brush portion is formed between the welding wire 3 and the welding wire 3 by the fiber layer 2 having the welding wire 3 as a base end and a free end 2 a extending between the welding wire 3 and the welding wire 3.
[0006]
[Problems to be solved by the invention]
In the conventional cleaning article shown in FIG. 6, the long fiber layer is manufactured by joining the base sheet 1 with the welding wires 3 and 3 and cutting the long fiber layer between the welding wire 3 and the welding wire 3. ing. Therefore, the arrangement interval (pitch) of the weld lines 3 is Pa, and the free ends 2a and 2a from the weld lines 3 of the fiber layers 2 and 2 that form the brush portion between the adjacent weld lines 3 and the weld lines 3. When the lengths up to and including La and Lb (La≈Lb), Pa> La + Lb is necessarily satisfied.
[0007]
That is, a gap S is formed between the free end 2 a of the fiber layer 2 and the free end 2 a of the fiber layer 2 that is divided into left and right parts between the weld line 3 and the weld line 3 of the base sheet 1. . Therefore, the average density of the fiber layer 2 with respect to the entire surface of the base sheet 1 is lowered, and the volume of the brush portion cannot be produced. Moreover, when performing the wiping work with this cleaning article, the respective fiber layers 2, 2 divided into the left and right through the gap S fall down on the surface of the base sheet 1, and are not easily restored from the fallen state. Become. Further, when the floor or the like is wiped, the cleaning effect of the brush portion by the fiber layer 2 is reduced as a whole, and the base sheet 1 directly contacts the wiping surface such as the floor in the gap S, so that it slides on the floor surface or the like. The frictional force at the time increases, and the sliding resistance during the wiping operation increases.
[0008]
The present invention solves the above-mentioned conventional problems, increases the average density of the fiber layer formed on the surface of the base sheet to enhance the cleaning effect, makes the fiber layer difficult to fall on the base sheet, An object of the present invention is to provide a cleaning article and a method for manufacturing the same that can reduce sliding resistance with a cleaning surface.
[0009]
[Means for Solving the Problems]
The present invention provides a cleaning article provided with a base sheet, a fiber layer provided on one or both sides of the base sheet, and a joining line for joining the fiber layer to the base sheet.
The joining lines are formed at predetermined intervals, the spacing between the joining lines is P, and the total length from the joining line to the free end of the fiber layer located between adjacent joining lines is L. And P <L.
[0010]
In the cleaning article of the present invention, since the length L of the fiber layer located between the joining lines is longer than the interval (pitch) P between the joining lines, it is difficult to form a gap between the fiber layers on the surface of the base sheet. . Therefore, the average density of the fiber layer on the substrate sheet can be increased, and the wiping effect by the fiber layer can be increased. Further, since the base sheet is less likely to directly hit the wiping surface such as a floor, the sliding resistance can be reduced and the wiping feel can be improved.
[0011]
In the fiber layer, it is preferable that the fibers extend in one direction.
Further, in the case where the fiber layer extends from each of the adjacent joint lines between the joint lines, the length from the joint line to the free end of the fiber layer extending from one joint line is L1, and the other joint line When the length from the joining line to the free end of the fiber layer extending from L is L2, P <L = L1 + L2.
[0012]
In this case, the L1 and L2 may be equal, or the L1 and L2 may be different.
[0013]
Alternatively, the fiber layer having the length L can be extended from only one joining line between adjacent joining lines.
[0014]
Further, for example, a free end of the fiber layer is directed in a direction away from the base sheet, and a brush portion is formed by the fiber layer. However, even when the fiber layer is in close contact with the surface of the base sheet at the time of manufacture, and the sliding force is applied during the wiping operation, the brush layer is formed by the fiber layer rising from the base sheet. Good.
[0015]
The fiber layer is formed of crimped fibers. Alternatively, the fiber layer is formed of fibers opened from tow. Alternatively, the fiber layer may be formed of a flat yarn, and the fiber layer may be formed of a split yarn. Or the layer of the strip-shaped sheet cut | disconnected in the strip shape from the resin sheet or the nonwoven fabric is used instead of the said fiber layer.
[0016]
Further, for example, the base sheet has elasticity in the direction in which the joining lines are arranged. However, the base sheet may not have elasticity.
[0017]
The cleaning article of the present invention includes at least the following steps.
[0018]
(A) Stretching a base material sheet having elasticity, and a long fiber layer extending along the extension direction of the base material sheet is overlaid on at least one of the front surface and the back surface of the base material sheet, and spaced apart in the extension direction. And a step of joining the base sheet and the long fiber layer by a plurality of joining lines extending in a direction crossing the extension direction,
(B) a step of cutting the long fiber layer between adjacent joining lines;
(C) A step of releasing the elongation applied to the base sheet and shrinking the base sheet before or after the step (b).
[0019]
Or at least the following process is included, It is characterized by the above-mentioned.
(D) The first long fiber layer aligned in one direction is overlapped on at least one of the front surface and the back surface of the base sheet, and the first long fiber layer extends in the direction in which the first long fiber layer extends and intersects with the extending direction. A step of joining the base sheet and the first long fiber layer by a plurality of first joining lines extending in a direction to perform;
(E) cutting the first long fiber layer between adjacent first joining lines;
(F) On the first long fiber layer, the second long fiber layer is stacked so as to extend in the same direction as the first long fiber layer, and the first long fiber layer is cut. Bonding the base sheet and the second long fiber layer with a second bonding line extending in a direction crossing the direction in which the second long fiber layer extends,
(G) A step of cutting the second long fiber layer between the adjacent second bonding lines to form a fiber layer extending from each of the first bonding line and the second bonding line.
[0020]
Or at least the following process is included.
(H) A plurality of long fiber layers aligned in one direction are stacked on at least one of the front surface and the back surface of the base sheet, and a plurality of pieces extending in a direction intersecting with the extending direction are spaced apart in the extending direction of the long fiber layer. A step of joining the base sheet and the long fiber layer by a joining line;
(I) a step of cutting the long fiber layer between adjacent joining lines;
(J) Before or after the step (i), the base sheet is joined so as to reduce the interval between the joining lines.
[0021]
In this case, the long fiber layer may be formed of crimped fibers. Alternatively, a long fiber layer opened from tow is used as the long fiber layer. Alternatively, a flat yarn layer may be used as the long fiber layer, and a split yarn may be used as the long fiber layer. Or it is also possible to use the layer of the strip-shaped sheet cut | disconnected in the strip shape from the resin sheet or the nonwoven fabric instead of the said long fiber layer.
[0022]
The bonding line between the fiber layer and the base sheet is preferably a heat welding wire, but the fiber layer and the base sheet may be bonded with an adhesive, and the fiber layer is connected to the base sheet. The joining line may be formed by stitching in a shape.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
[0024]
FIG. 1 is a partial perspective view showing a cleaning article 10 according to a first embodiment of the present invention.
The cleaning article 10 is provided with a rectangular base sheet 11 which is long in the vertical direction (Y direction) and has a predetermined width dimension in the horizontal direction (X direction). The fiber layer 12 is provided on one side of the base sheet 11. , 12,... Are joined. The direction in which the fibers of each fiber layer 12 mainly extend is the Y direction. However, the extending direction of the fibers may be inclined with respect to both the Y direction and the X direction.
[0025]
The joining lines 13, 13,... Between the base sheet 11 and the fiber layer 12 are perpendicular to the direction in which the fibers extend with a certain interval (pitch) P in the Y direction, that is, the direction in which the fibers of the fiber layer 12 extend. They are formed parallel to each other in the direction of the direction. However, the interval P between the joint lines 13, 13, 13,... May be different depending on the location, and each joint line 13 may be inclined with respect to the Y direction and the X direction. Alternatively, each joint line 13 may be formed in a wave shape, a curved shape, or a V-shaped pattern. In the case of a V-shaped pattern, it is preferable that the top of the V-shape is oriented in the vertical direction (Y direction).
[0026]
As shown in FIG. 1 and FIG. 3 (B), the fiber layer 12 is fixed to the base sheet 11 by the joining line 13, and the free end 12 a and the free end 12 b of the fiber layer 12 connect the joining line 13. It extends to the left and right sides in the Y direction as the center. The fiber layer 12 extending from the joining line 13 to the one free end 12a serves as the brush portion 12A, and the fiber layer 12 extending from the joining line 13 to the other free end 12b serves as the brush portion 12B. .
[0027]
However, each fiber layer 12 may fall to the base material sheet 11 side, and the free end 12a, 12b of the fiber layer 12 rises from the base material sheet 11 by the sliding force with the floor surface or the like during use, and the brush portion 12A and 12B may be formed.
[0028]
In a region between adjacent bonding lines 13 and bonding lines 13, a fiber layer 12 that forms the brush portion 12 </ b> A extends from one bonding line 13, and a fiber layer that forms the brush portion 12 </ b> B from the other bonding line 13. 12 extends. Here, the length (average length of a large number of fibers) from the joining line 13 to the free end 12a of the fiber layer 12 forming one brush portion 12A is L1, and the fiber layer forming the other brush portion 12B. When the length of the fibers from the 12 joining lines 13 to the free end 12b (average length of many fibers) is L2, the sum of the lengths L1 and L2 L = L1 + L2 and the distance between the joining lines 13 The relationship with P is P <L = L1 + L2. That is, when the fiber layer 12 that forms the brush portion 12A and the fiber layer 12 that forms the brush portion 12B both fall on the base sheet 11, the tip portion of the fiber layer 12 that forms the brush portion 12A, This is a relationship in which the tip portion of the fiber layer 12 forming the brush portion 12B overlaps.
[0029]
The total length L of the fibers is preferably at least 1.1 times the spacing P, more preferably 1.3 times or more, and even more preferably 1.5 times or more.
[0030]
FIG. 2 is a partial perspective view showing the cleaning article 10A according to the second embodiment of the present invention.
[0031]
In this embodiment, similarly to the embodiment shown in FIG. 1, the fiber layer 12 is provided on one side of the base sheet 11, and the direction in which each fiber layer 12 mainly extends is the Y direction. The said base material sheet 11 and the fiber layer 12 are joined by the joining lines 13, 13, ... which open the fixed space | interval P in the Y direction, and are mutually extended in the X direction.
[0032]
Each fiber layer 12 extends mainly from each joint line 13 in the left direction in the figure, and a brush portion 12D is formed of the fiber layer 12 from the joint line 13 to the free end 12d. In this embodiment, the brush portion 12D extends only from one of the bonding lines 13 in the region between the adjacent bonding lines 13. In addition, when the fiber layer 12 is stopped by the base material sheet 11 with the joining line 13, the said fiber layer 12 protrudes a little in the illustration right direction from the joining line 13. FIG. The fiber length L0 between the free end 12e of the protruding fiber layer 12 and the joining line 13 is very short, which is about 2 mm or less, preferably about 1 mm or less. Therefore, the portion from the joining line 13 to the free end 12e does not substantially function as a brush portion.
[0033]
In the embodiment of FIG. 2, in the fiber layer 12 forming the brush portion 12D, when the length of fibers from the joining line 13 to the free end 12d (average length of many fibers) is L, the joining line 13 and the distance P between the joining lines 13 are P <L. That is, the fiber layer 12 forming the brush portion 12 </ b> D extending from the bonding line 13 has a relationship of overlapping the adjacent bonding line 13 when falling down to the base sheet 11 side.
[0034]
The fiber length L is preferably at least 1.1 times the spacing P, more preferably 1.3 times or more, and even more preferably 1.5 times or more.
[0035]
In the cleaning articles 10 and 10A, since the fiber length L = L1 + L2 from the joining line to the free end of the fiber layer forming the brush portion, or L is larger than the interval P between the joining lines 13, the base material The average density of the fiber layer 12 on the entire surface of the sheet 11 can be increased, and the brush portion formed by the fiber layer 12 can have a volume feeling. Further, when the fiber layer 12 forming the brush portion is pressed during the wiping operation of the floor surface or the like, the fiber layer overlaps the fiber layer forming the adjacent brush portion. Even if it falls to the sheet 11 side, it can be restored immediately.
[0036]
In addition, since the base sheet 11 is not easily exposed between the brush portions, the floor or the like is hardly rubbed directly on the surface of the base sheet 11, and the frictional force with the floor surface or the like can be reduced. The feel can be improved.
[0037]
In the wiping operation, various kinds of dust from minute dust to bread crumbs can be removed and collected by the brush portion formed of the fiber layer.
[0038]
Any material can be used as the base sheet 11 as long as it has a strength that can be used, such as a nonwoven fabric formed by a spunbond method, a resin film, and a cloth containing synthetic fibers. For example, in terms of high strength, the base sheet 11 can be a spunbond nonwoven fabric made of a composite fiber having a core made of polyethylene terephthalate and a sheath made of polyethylene. Further, when the cleaning article 10 or 10A is manufactured in the step of FIG. 3 described later, the base material sheet 11 having at least elastic elasticity in the Y direction is used. The base material sheet having elastic stretchability is a crimped fiber, a nonwoven fabric formed of elastic stretchable fibers, a nonwoven fabric containing the elastic stretchable fibers, or a rubber sheet.
[0039]
As the fiber layer 12, for example, a long fiber layer (long fiber bundle) opened from tow is used. The long fiber layer is made of, for example, polyethylene, polypropylene, nylon, polyester, rayon, or the like. Among these, it is preferable to use a composite fiber whose core is polyester and whose sheath is polyethylene. In addition, (1) the core is polyethylene terephthalate, the sheath is polyethylene composite fiber, (2) the core and sheath are polyethylene terephthalate composite fiber, (3) the core is polyethylene polypropylene terephthalate sheath is the composite fiber, (4) core and sheath Can be used, and (5) a composite fiber whose core is a polypropylene sheath and a polyethylene sheath. The denier of the long fibers is preferably 1 to 50 dtex, more preferably 2 to 10 dtex. Moreover, what was crimped as needed can be used for a long fiber. Further, the fiber layer 12 may include different denier fibers. In this case, a large denier fiber layer may be provided on the base sheet 11 side, and a small denier fiber layer may be stacked thereon, or vice versa.
[0040]
Further, as the fiber layer 12, a flat yarn obtained by slitting a film into a tape shape and stretched, or a thermoplastic film called a split yarn, was scraped in a direction perpendicular to the orientation direction of the resin to become a fiber shape. You may use what the film was joined by mesh shape. In addition, natural fibers such as wool and yarn may be used.
[0041]
Of the above solid fibers, crimped fibers are preferred. The crimped fiber is a wool that has been crimped in advance or a fiber that has been formed by applying a crimping treatment after the fiber is formed. When crimped fibers are used, the fiber layer becomes bulky, and further, a structure in which dust or dust can be easily taken into the crimped portions. In particular, crimped fibers formed from tow fibers are preferred.
[0042]
A bundle of strip-like sheets can be used in place of the fiber layer 12. This strip-shaped sheet is a sheet-like material such as a nonwoven fabric or a film that is formed into a strip shape (for example, a rectangle) having an extremely short width dimension, and the strip-shaped sheets are bundled.
[0043]
It is preferable that the base material sheet 11 and the fiber layer 12 or the layer of the strip-shaped sheet contain a thermoplastic resin (heat-bondable fiber). In this case, the joining line 13 can be formed by heat-sealing wire using heat embossing roll processing or ultrasonic welding means. However, the base material sheet 11 and the fiber layer 12 or the strip-shaped sheet layer may be bonded to each other at the bonding line 13 using an adhesive, or the bonding line 13 may be formed by sewing. The interval P between the joining lines 13 is preferably 5 to 50 mm.
[0044]
In addition, a fiber layer that extends between the joining line 13 and the joining line 13 may be provided in a part between the joining line 13 and the joining line 13. In this case, fine dust can be captured by the fiber layer forming the brush part, and the pocket formed between the bonding line 13 and the fiber layer crossing the bonding line 13 and the base sheet 11 is relatively large. It is possible to catch garbage. In this case, it is preferable that the brush portions and the fiber layers forming the pockets are alternately arranged in the X direction.
[0045]
Moreover, it is possible to apply mineral oil such as paraffin, synthetic oil such as polyolefin, oil agent such as silicone oil, dust adsorbent, surfactant, etc. to the fiber layer 12 of the cleaning articles 10 and 10A. Moreover, substances, such as a deodorizer, a moisturizer, an antibacterial agent, can be contained.
[0046]
FIG. 3 shows a first embodiment of the method for manufacturing a cleaning article of the present invention. In FIG. 3, the process of manufacturing the cleaning article 10 shown in FIG. 1 is shown as an example.
[0047]
In the manufacturing method shown in FIG. 3, a nonwoven fabric having elastic elasticity in at least the Y direction is used as the substrate sheet 11.
[0048]
In FIG. 3A, a tension T in the Y direction is applied to the base material sheet 11, and the base sheet 11 is extended in the Y direction. At this time, the expansion ratio (Py / P) is at least 1.1 times. Preferably it is 1.3 times or more, More preferably, it is 1.5 times or more.
[0049]
The base material sheet 11 is hold | maintained in the expanded state, and the long fiber layer 12Y is installed on it. The long fiber layer 12Y is a fiber that is opened from a tow, or a flat yarn, a split yarn obtained by finely splitting the flat yarn by a mechanical method, or a strip-like sheet used in place of the long fiber layer 12Y. Is a layer. The long fibers 12Y are stacked on the base sheet 11 such that the main extending direction of the fibers is the Y direction.
[0050]
And the base material sheet 11 and the long fiber layer 12Y are joined by the joining line 13 in the state which extended the base material sheet 11. FIG. The joining lines 13 are formed in parallel so as to extend at equal intervals (Py) in the Y direction and in the X direction. Further, the joining line 13 may have a wave shape toward the X direction, may be inclined with respect to the X direction and the Y direction, or may be formed in a V-shaped pattern.
[0051]
After the bonding line 13 is formed, the long fiber layer 12Y is cut at the midpoint between the adjacent bonding lines 13 and the bonding lines 13, that is, at a position that is 1/2 of the interval Py. The cutting lines C1 at this time extend in the X direction and are parallel to each other. Further, the cutting line C1 is intermittently formed in the X direction, and the region in which the long fiber layer 12Y is cut and the region in which the long fiber layer 12Y is not cut are alternately arranged in the X direction between the joining line 13 and the joining line 13. You may form so that it may repeat. Further, when the joining line 13 is formed in a wave shape or a V-shaped pattern, the cutting line C1 is preferably formed in the same shape so that the joining line 13 and the cutting line C1 on both sides are equally spaced. .
[0052]
After the cutting, the holding of the base sheet 11 is released, and the base sheet 11 is contracted in the Y direction by its own elastic contraction force. FIG. 3B shows the cleaning article 10 completed after shrinkage. Due to the contraction of the base sheet 11, the interval between the joining lines 13 contracts from Py to P. As a result, the brush portion 12A is formed by the fiber layer 12 extending from the bonding line 13 to one side, and the brush portion 12B is formed by the fiber layer 12 extending from the bonding line 13 to the other side. Here, the fiber length from the joining line 13 of the fiber layer 12 forming the brush portion 12A to the free end 12a is L1, and the fiber length from the joining line 13 of the fiber layer 12 forming the brush portion 12B to the free end 12b is L2. Then, L1≈L2. The total fiber length L = L1 + L2 in the brush portion 12A and the brush portion 12B is P <L = L1 + L2. In addition, the ratio of P and L is determined by the expansion ratio in the Y direction of the base material sheet 11 in FIG.
[0053]
In FIG. 3A, since the long fiber layer 12Y is cut at the midpoint between the adjacent joining line 13 and the joining line, L1≈L2, but the position of the cutting line C1 is shifted from the center in the Y direction. L1 and L2 have different lengths. Also in this case, P <L = L1 + L2.
[0054]
3A, when the long fiber layer 12Y is cut by a cutting line C1a at a position very close to one bonding line 13, as shown by a broken line arrow, as shown in FIG. 10 A of cleaning articles in which the brush part 12D (fiber length L) was formed with the extended fiber layer 12 can be obtained.
[0055]
In addition, after the holding | maintenance of the base material sheet 11 is cancelled | released in the state of FIG. 3 (A) and the base material sheet 11 shrink | contracts to a Y direction, you may cut | disconnect the long fiber layer 12Y by the said cutting line C1.
[0056]
FIG. 4 shows a second embodiment of the method for manufacturing a cleaning article of the present invention. This manufacturing method is suitable for manufacturing the cleaning article 10 shown in FIG.
[0057]
In FIG. 4A, the first long fiber layer 12Y1 is placed on the non-stretchable base sheet 11. Also in this case, the direction in which the main fibers of the long fiber layer 12Y1 extend is the Y direction. And the base material sheet 11 and the 1st long fiber layer 12Y1 are joined by the 1st joining line 13a. The first joining lines 13a are parallel to each other, and the interval in the Y direction is 2P (twice P). Also in this case, the shape of the bonding line 13a can be freely set, and can be a waveform or a V-shaped pattern as described above.
[0058]
Then, as shown in FIG. 4A, the first long fiber layer 12Y1 is cut between the adjacent first bonding line 13a and the first bonding line 13a. This cutting is performed at substantially the midpoint between the joining line 13a and the joining line 13a. At this time, the long fiber layer 12Y1 may be cut by one cutting line C1 as shown in FIG. 3A, but in FIG. 4A, two cutting lines C2 having a gap W1 in the Y direction are provided. , C2 cuts the long fiber layer 12Y1, and the long fiber layer 12Y1 corresponding to the length W1 is removed between the cutting lines C2 and C2. As a result, as shown in FIG. 4B, brush portions 12A1 and 12B1 are formed by the cut fiber layer 12 on both sides of the first joining line 13a. However, in this state, a gap (W1) is provided in the Y direction between the free end 12a1 of the fiber layer 12 forming the brush portion 12A1 and the free end 12b1 of the fiber layer 12 forming the brush portion 12B1. Yes.
[0059]
In FIG. 4C, the second long fiber layer 12Y2 is placed on the layer where the brush portion 12A1 and the brush portion 12B1 are formed. The main extending direction of the fibers of the second long fiber layer 12Y2 is the Y direction. Then, in the gap between the free end 12a1 of the brush portion 12A1 and the free end 12b1 of the brush portion 12B1, the second long fiber layer 12Y2 and the base sheet 11 are joined by the second joining line 13b. .
[0060]
The second joint line 13b is parallel to the first joint line 13a. The distance between the second bonding line 13b and the second bonding line 13b is 2P (twice P), and the distance between the first bonding line 13a and the second bonding line 13b is P. A joining line is formed. At this time, the second joint line 13b is formed in a gap (interval W1) between the free end 12a1 of the brush portion 12A1 located under the second long fiber layer 12Y2 and the free end 12b1 of the brush portion 12B1. Therefore, the fiber layer forming the brush part 12A1 and the brush part 12B1 is not bonded to the second long fiber layer 12Y2 or the base sheet 11.
[0061]
Next, as shown in FIG. 4C, the second long fiber layer 12Y2 is cut along two cutting lines C3 and C3 between the adjacent second bonding line 13b and the second bonding line 13b. To do. The cutting lines C3 and C3 are set with an interval W2 in the Y direction, and as a result, the second long fiber layer 12Y2 is removed by the interval W2. The interval W2 is preferably equal to the interval W1 shown in FIG. 4, but is not necessarily equal.
[0062]
As a result, as shown in FIG. 4D, the brush portion 12A2 made of the fiber layer 12Y2 is formed on one side of the second bonding line 13b, and the brush portion 12B2 made of the fiber layer 12Y2 is formed on the other side. The That is, the first joining line 13a and the second joining line 13b are alternately arranged at equal intervals P, and the brush part 12A1 and the brush part 12B1, and the brush part 12A2 and the brush part 12B2 are alternately arranged in the Y direction. Will be lined up.
[0063]
Between the adjacent joining lines 13a and 13b, the brush portion 12A1 extends from the joining line 13a, and the brush portion 12B2 extends from the joining line 13b. Alternatively, the brush portion 12B1 extends from the joint line 13a and the brush portion 12A2 extends from the joint line 13b between the adjacent joint lines 13a and 13b.
[0064]
The fiber length from the joining line 13a or 13b of the brush parts 12A1 and 12A2 to the free end 12a1 or 12a2 is L1, and the fiber length from the joining line 13b or 13a of the brush parts 12B2 and 12B1 to the free end 12b2 or 12b1 is L2. , P <L = L1 + L2. L1≈L2. Note that if the cutting length W1 shown in FIG. 4A and the cutting length W2 shown in FIG. 4C are changed, L1 and L2 are not equal.
[0065]
The second joint line 13b may not be formed at the midpoint of the first joint line 13a, and the second joint line 13b may be formed at a position close to any one of the first joint lines 13a.
[0066]
FIG. 5 shows a third embodiment of the method for manufacturing a cleaning article of the present invention.
In this manufacturing method, in FIG. 5A, a long fiber layer 12Y or a strip-like sheet layer is placed on the non-stretchable base sheet 11 so that the fibers extend in the Y direction. And the base material sheet 11 and the said long fiber layer 12Y are joined by the joining line 13. FIG. As described in the above embodiments, the joining lines 13 are parallel to each other and extend in the X direction. However, the joining line 13 may be a wave shape or a V-shaped pattern.
[0067]
At this time, the interval Py in the Y direction of the bonding line 13 is set longer than the interval P of the bonding line 13 at the time of completion. Py / P is 1.1 or more, preferably 1.3 or more, and more preferably 1.5 or more.
[0068]
And the long fiber layer 12Y is cut | disconnected by the cutting line C1 in the midpoint of the adjacent joining line 13 and the joining line 13. FIG. And as shown in FIG.5 (B), the superposition | polymerization part 11a is formed by pushing the base material sheet 11 with a braid | blade from upper direction between the adjacent joining lines 13 and the joining lines 13, This superposition | polymerization part 11a Join. In the case where the base sheet 11 is heat-fusible, after being pushed in by the blade, the overlapping portion 11a can be hardened by sandwiching the overlapping portion 11a from both sides and heating and pressurizing it. Alternatively, the sheets may be bonded or stitched together at the overlapping portion 11a.
[0069]
By forming the overlapping portion 11a, the interval between the joining lines 13 is reduced from Py to P. Therefore, the fiber length L1 from the joining line 13 of the brush portion 12A extending from one of the adjacent joining lines 13 to the free end 12a, the fiber length L2 from the joining line 13 to the free end 12b of the brush portion 12B, and the joining line 13 The relationship with the interval P is P <L = L1 + L2.
[0070]
The L1 and L2 may be different. Further, in FIG. 5A, when the long fiber 12Y is cut along the cutting line C1a at a position very close to one of the bonding lines 13, as shown in FIG. 10 A of cleaning articles provided with the fiber layer (brush part 12D) extended in the length L from the joining line 13 can be obtained.
[0071]
Further, as shown in FIG. 5B, after forming the overlapping portion 11a for reducing the interval between the bonding lines 13 from Py to P, the long fiber layer 12Y is cut along the cutting line C1. May be.
[0072]
In each of the embodiments shown in FIGS. 3 to 5, a continuous sheet in which the fiber layers are bonded onto the base sheet 11 continuously extending in the Y direction can be formed. After forming this continuous sheet, it can cut | disconnect so that it may become a predetermined dimension to a Y direction, and the individual articles | goods 10 or 10A for cleaning can be obtained.
[0073]
In addition, after joining the said fiber layer 12, the process which makes a fiber layer fluff may be provided so that the free end of a fiber layer may be lifted from the base material sheet 11 in each brush part.
[0074]
In each of the above embodiments, the fiber layer is formed only on one surface of the base sheet 11, but the fiber layer may be formed on both front and back surfaces of the base sheet 11. That is, the fiber layers installed on both surfaces of the base sheet 11 are heat-sealed together by the joining lines 13 or 13a and 13b, and the long fiber layers on the upper and lower surfaces are joined by the cutting lines C1, C2 or C1a. If it cut | disconnects, a brush part can be formed in both surfaces of the base material sheet 11. FIG.
[0075]
The cleaning articles 10 and 10A may be used by being attached to a cleaning mop, or may be held by hand to perform a wiping operation.
[0076]
【The invention's effect】
As described above, the cleaning article of the present invention can be installed on the base sheet with the fiber layer having a volume feeling. Moreover, since the brush part can maintain the state raised toward the outside from the surface of the base sheet, it is possible to collect dust on the surface having irregularities on the surface. In addition, even relatively large garbage such as bread crumbs can be collected.
[0077]
Moreover, the manufacturing method of the articles | goods for cleaning of this invention can form a fiber layer with a volume feeling on a base material sheet by a simple process.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a cleaning article according to a first embodiment of the present invention.
FIG. 2 is a partial perspective view of a cleaning article according to a second embodiment of the present invention.
FIGS. 3A and 3B are cross-sectional views showing the method of manufacturing the cleaning article according to the first embodiment of the present invention by process,
FIGS. 4A, 4B, 4C, and 4D are cross-sectional views showing a method of manufacturing a cleaning article according to a second embodiment of the present invention, by process;
FIGS. 5A and 5B are cross-sectional views showing a method for manufacturing a cleaning article according to a third embodiment of the present invention, by process;
FIG. 6 is a sectional view showing a conventional cleaning article;
[Explanation of symbols]
10, 10A Cleaning article
11 Substrate sheet
12 Fiber layer
12A, 12B, 12A1, 12B1, 12A2, 12B2, 12D Brush part
12a, 12b, 12a1, 12b1, 12a2, 12b2, 12d, 12e Free end
12Y long fiber layer
12Y1 first long fiber layer
12Y2 second long fiber layer
13 Joining line
13a First joining line
13b Second joint line

Claims (20)

In a cleaning article provided with a base sheet, a fiber layer provided on one or both sides of the base sheet, and a bonding line for joining the fiber layer to the base sheet,
The bonding lines are formed by each other at a predetermined interval, between the bonding lines adjacent and fibrous layer extends from only one joining line, the free spacing of the joint lines P, from the joining line of the fiber layer A cleaning article, wherein P <L, where L is the total length to the end. In a cleaning article provided with a base sheet, a fiber layer provided on one or both sides of the base sheet, and a bonding line for joining the fiber layer to the base sheet,
The joining lines are formed at predetermined intervals from each other, and the base sheet has elasticity in the direction in which the joining lines are arranged,
Between adjacent bonding lines, the length from the bonding line to the free end of the fiber layer extending from one bonding line is L1, and the length from the bonding line to the free end of the fiber layer extending from the other bonding line A cleaning article , wherein P <L = L1 + L2, where L is L2 . In a cleaning article provided with a base sheet, a fiber layer provided on one or both sides of the base sheet, and a joining line for joining the fiber layer to the base sheet,
The bonding lines are formed at predetermined intervals, the base sheet is overlapped and bonded between adjacent bonding lines, and the interval between the bonding lines and the bonding lines is narrowed,
Between adjacent bonding lines, the length from the bonding line to the free end of the fiber layer extending from one bonding line is L1, and the length from the bonding line to the free end of the fiber layer extending from the other bonding line A cleaning article, wherein P <L = L1 + L2, where L is L2. The cleaning article according to any one of claims 1 to 3, wherein in the fiber layer, fibers are aligned and extended in one direction. The cleaning article according to claim 2 or 3, wherein L1 and L2 are equal. The cleaning article according to claim 2 or 3, wherein the L1 and L2 are different. The cleaning article according to any one of claims 1 to 6, wherein a brush portion is formed by the fiber layer with a free end of the fiber layer facing away from the base sheet. The cleaning article according to claim 1, wherein the fiber layer is formed of crimped fibers. The cleaning article according to any one of claims 1 to 8, wherein the fiber layer is formed of fibers opened from tow. The cleaning article according to claim 1, wherein the fiber layer is formed of a flat yarn. The cleaning article according to any one of claims 1 to 8, wherein the fiber layer is formed of split yarn. The cleaning article according to any one of claims 1 to 7, wherein a layer of a strip-like sheet cut from a resin sheet or a nonwoven fabric into a strip-like shape is used instead of the fiber layer. The manufacturing method of the article | item for cleaning characterized by including the following process at least.
(A) Stretching a base material sheet having elasticity, and a long fiber layer extending along the extension direction of the base material sheet is overlaid on at least one of the front surface and the back surface of the base material sheet, and spaced apart in the extension direction. And a step of joining the base sheet and the long fiber layer by a plurality of joining lines extending in a direction crossing the extension direction,
(B) a step of cutting the long fiber layer between adjacent joining lines;
(C) A step of releasing the elongation applied to the base sheet and shrinking the base sheet before or after the step (b). The manufacturing method of the article | item for cleaning characterized by including the following process at least.
(D) The first long fiber layer aligned in one direction is overlapped on at least one of the front surface and the back surface of the base sheet, and the first long fiber layer extends in the direction in which the first long fiber layer extends and intersects with the extending direction. A step of joining the base sheet and the first long fiber layer by a plurality of first joining lines extending in a direction to perform;
(E) cutting the first long fiber layer between adjacent first joining lines;
(F) On the first long fiber layer, the second long fiber layer is stacked so as to extend in the same direction as the first long fiber layer, and the first long fiber layer is cut. Bonding the base sheet and the second long fiber layer with a second bonding line extending in a direction crossing the direction in which the second long fiber layer extends,
(G) A step of cutting the second long fiber layer between the adjacent second bonding lines to form a fiber layer extending from each of the first bonding line and the second bonding line. The manufacturing method of the article | item for cleaning characterized by including the following process at least.
(H) A plurality of long fiber layers aligned in one direction are stacked on at least one of the front surface and the back surface of the base sheet, and a plurality of pieces extending in a direction intersecting with the extending direction are spaced apart in the extending direction of the long fiber layer. A step of joining the base sheet and the long fiber layer by a joining line;
(I) a step of cutting the long fiber layer between adjacent joining lines;
(J) Before or after the step (i), the base sheet is joined so as to reduce the interval between the joining lines. The method for manufacturing a cleaning article according to any one of claims 13 to 15 , wherein the long fiber layer is formed of crimped fibers. The manufacturing method of the article | item for cleaning in any one of Claim 13 thru | or 16 which uses the long fiber layer opened from tow as the said long fiber layer. The method for manufacturing a cleaning article according to any one of claims 13 to 16 , wherein a flat yarn layer is used as the long fiber layer. The method for manufacturing a cleaning article according to any one of claims 13 to 16 , wherein a split yarn layer is used as the long fiber layer. The method for manufacturing a cleaning article according to any one of claims 13 to 15 , wherein a layer of a strip-like sheet cut into a strip shape from a resin sheet or a nonwoven fabric is used instead of the long fiber layer.

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