JP4577766B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article that receives excrement from a wearer.

  Conventionally, in a disposable diaper, since it is necessary to replace the entire diaper even when a small amount of urination is performed, an economical burden is increased for the user. Therefore, an inexpensive auxiliary absorbent device (so-called urine pad or the like) is attached to the main body of the disposable diaper and worn, and only the auxiliary absorbent device is replaced when urinating a small amount.

Thus, when using an auxiliary | assistant absorption tool, it is necessary to mount | wear with an auxiliary | assistant absorption tool in a suitable position for a wearer, and to prevent the leakage of urine or feces. For example, in Patent Document 1, by disposing a positioning mark corresponding to a disposable paper diaper and a part of the inner pad (auxiliary absorbent) (for example, on the center line or an end), the inner pad is placed at the center of the disposable paper diaper. A technique for quickly and reliably mounting is disclosed.
JP 2003-93438 A

  By the way, depending on the wearer's physical condition (for example, the state of hemiplegia or contracture, or the position of the male genital disposable diaper), the direction of urine flowing in the disposable diaper is biased, etc. Leakage may not be prevented properly by simply attaching an auxiliary absorbent device to the center of the disposable diaper.

  In such a case, it is preferable to shift the attachment position of the auxiliary absorbent with respect to the disposable diaper according to the wearer's physical condition. However, in the disposable paper diaper disclosed in Patent Document 1, it is difficult to finely adjust the position of the inner pad because the mark is provided only at the center or end of the disposable paper diaper. In addition, when an auxiliary absorbent tool other than the inner pad provided with a dedicated mark is used, quick positioning itself becomes difficult.

  This invention is made | formed in view of the said subject, and aims at specifying easily the attachment position of the auxiliary | assistant absorber which suits a wearer's excretion tendency.

Invention of Claim 1 is an absorbent article which receives the excretion from a wearer, Comprising: While covering an absorbent core and the wearer side main surface of the said absorption core, an auxiliary | assistant absorber is in the said wearer side. A top sheet that can be attached, and a back sheet that covers the other main surface of the absorbent core, wherein the top sheet is positioned at the attachment position of the auxiliary absorbent with respect to the longitudinal direction and the width direction perpendicular to the longitudinal direction. A positioning pattern used in particular , wherein the positioning pattern is a lattice-like pattern formed by lines extending in the longitudinal direction and the width direction or a pattern of lattice points extending in the longitudinal direction and the width direction The length of the positioning pattern in the longitudinal direction is longer than that of the auxiliary absorber, and the width of the positioning pattern in the width direction is Wider than the ingredients.

Invention of Claim 2 is an absorbent article of Claim 1, Comprising: The said positioning pattern is provided to the edge part of the said top sheet in the said longitudinal direction .

Invention of Claim 3 is an absorbent article of Claim 1 or 2, Comprising: The point of the pattern of the said grid | lattice-like pattern or the pattern of the said grid point is constant regarding the said longitudinal direction and the said width direction. Different lines or points are used for each piece.

  Invention of Claim 4 is an absorbent article in any one of Claim 1 thru | or 3, Comprising: The density of the pattern in at least one part of the said positioning pattern is higher than the density in other part.

  A fifth aspect of the present invention is the absorbent article according to any one of the first to fourth aspects, wherein the positioning pattern is formed on the top sheet by printing.

  Invention of Claim 6 is an absorbent article in any one of Claim 1 thru | or 4, Comprising: The said positioning pattern is the colored hot-melt-adhesive apply | coated to the said absorption core side of the said top sheet. is there.

  In this invention, the attachment position of the auxiliary | assistant absorber which suits a wearer's excretion tendency can be specified easily. In invention of Claim 3, the attachment position of an auxiliary | assistant absorber can be specified more easily. In invention of Claim 4, the specific site | part of an auxiliary | assistant absorber can be accurately positioned according to a wearer's excretion tendency.

  In the invention of claim 5, the positioning pattern can be easily provided. In invention of Claim 6, manufacture of an absorbent article can be simplified.

  FIG. 1 is a plan view showing an absorbent article 1 according to the first embodiment of the present invention. The absorbent article 1 that receives excrement from the wearer is used as an open-type disposable diaper that is worn around the waist around a part that abuts on the abdomen and a part that abuts on the back. The

  As shown in FIG. 1, the absorbent article 1 includes a substantially sheet-like main body 2 and the longitudinal direction of the main body 2 over almost the entire length in the longitudinal direction of the main body 2 (that is, the Y direction in FIG. 1). And a pair of side wall portions 3 provided on both sides in the width direction perpendicular to (i.e., (+ X) side and (-X) side), and one end portion ((-Y) side in the longitudinal direction of the main body portion 2 And a pair of fastening portions 24 attached to both sides in the width direction at a portion contacting the back side of the wearer). When the absorbent article 1 is worn, the main surface on the (+ Z) side of the main body 2 becomes a surface in contact with the wearer, and the fastening portion 24 is provided by two hook-and-loop fasteners 241 provided on each of the pair of fastening portions 24. Is fastened to the side opposite to the wearer side of the end portion on the (+ Y) side of the main body portion 2 (that is, the portion that contacts the abdomen side of the wearer).

  A plurality of elastic members 31a and 31b extending in the Y direction are joined to each of the pair of side wall portions 3, and when the absorbent article 1 is expanded as shown in FIG. 1, the elastic members 31a and 31b are stretched. It is in a state. In the absorbent article 1, when the inner elastic member 31 a contracts, the inner edge of the side wall 3 rises toward the wearer side on the side of the main body 2, and the outer elastic member 31 b contracts. A solid gather (so-called leg gather) is formed in which the outer edge and the lower sheet of the side wall portion 3 rise toward the wearer side and inward and abut on the vicinity of the base of the wearer's foot when worn. The side wall 3 is formed of a water-repellent or liquid-impervious nonwoven fabric (for example, a spunbond nonwoven fabric, a meltblown nonwoven fabric, an SMS (spunbond / meltblown / spunbond) nonwoven fabric), a plastic film, or a composite material thereof. . From the viewpoint of improving the comfort of the absorbent article 1, the side wall portion 3 preferably has air permeability.

  FIG. 2 is a cross-sectional view of the absorbent article 1 cut along a plane approximately in the center and perpendicular to the Y direction. As shown in FIGS. 1 and 2, the main body 2 includes a liquid-absorbing absorbent core 22, a top sheet 21 that covers the main surface of the absorbent core 22 on the wearer side (that is, the (+ Z) side), and an absorbent body. A back sheet 23 that covers the other main surface of the core 22 is provided, and the side wall 3 is joined to the side of the absorbent core 22. The top sheet 21 and the back sheet 23 are joined around the absorbent core 22 by a hot melt adhesive or the like. In the absorbent article 1, a substantially rectangular auxiliary absorbent 9 such as an inner pad can be attached on the wearer side of the top sheet 21 as shown by a two-dot chain line in FIGS. 1 and 2.

  The top sheet 21 is a non-woven fabric formed of a liquid-permeable material, for example, a hydrophilic fiber, and captures moisture of excrement from the wearer and moves it to the absorbent core 22. Nonwoven fabrics used as the top sheet 21 are, for example, point bond nonwoven fabrics, air-through nonwoven fabrics, and spunlace nonwoven fabrics. As hydrophilic fibers forming these nonwoven fabrics, cellulose, rayon, cotton, or the like is usually used. As the top sheet 21, a liquid-permeable nonwoven fabric formed of hydrophobic fibers (for example, polypropylene, polyethylene, polyester, polyamide, nylon) whose surface is hydrophilically treated with an active agent may be used. A plastic film having holes may be used.

  The absorbent core 22 is obtained by wrapping a hydrophilic fiber (for example, pulverized pulp fiber or cellulose fiber) mixed with a granular water-absorbing polymer (for example, SAP (Super Absorbent Polymer)) with tissue paper or a liquid-permeable sheet. The moisture formed and absorbed through the top sheet 21 is quickly fixed. Tissue paper or the like that wraps hydrophilic fibers prevents the hydrophilic fibers from being deformed and the water-absorbing polymer from falling off.

  The back sheet 23 is a water-repellent or liquid-impervious nonwoven fabric, and the moisture that has permeated through the top sheet 21 and the moisture once absorbed by the absorbent core 22 are outside the main body 2 (that is, the (−Z) side). ) Prevent exudation. Nonwoven fabrics used as the back sheet 23 are, for example, spunbond nonwoven fabrics, meltblown nonwoven fabrics, and SMS (spunbond / meltblown / spunbond) nonwoven fabrics, and may be subjected to water repellent treatment as necessary. A water-repellent or liquid-impervious plastic film, a composite material of the nonwoven fabric and the plastic film, or the like may be used as the back sheet 23. In this case, from the viewpoint of the wearer's comfort, it is preferable to use a plastic film having air permeability.

  As shown in FIG. 1, the top sheet 21 includes a lattice-shaped positioning pattern 4 formed by lines 41 extending in the longitudinal direction and the width direction of the main body 2, and the plurality of lines 41 of the positioning pattern 4 are mutually connected. They are arranged approximately parallel with an interval of about 5 to 10 mm. The line 41 of the positioning pattern 4 is different from the line 41a (in the present embodiment, thicker than the line 41) by a certain number (in this embodiment, every five) in the longitudinal direction and the width direction. Is done. The positioning pattern 4 is formed on the surface of the top sheet 21 on the side of the absorbent core 22 by in-line printing when the absorbent article 1 is manufactured, and the attachment position of the auxiliary absorbent 9 in the longitudinal direction and the width direction of the main body 2. Used to identify The positioning pattern 4 may be printed on the surface of the top sheet 21 on the wearer side. The positioning pattern 4 may also be formed on the top sheet 21 below the side wall 3 in a state in which the absorbent article 1 is expanded (in a collapsed state).

  When the absorbent article 1 is worn, first, the auxiliary absorbent 9 is attached to the absorbent article 1, and then the absorbent article 1 is applied to the wearer together with the auxiliary absorbent 9 and the fastening portion 24. It is fixed by. When the auxiliary absorbent 9 is attached to the absorbent article 1, the state after use of the previously used auxiliary absorbent 9 (that is, which part of the auxiliary absorbent 9 is mainly used to absorb urine etc.) ), The wearer's excretion tendency is grasped, and each corner portion of the auxiliary absorbent device 9 is overlapped with the intersection of the lines 41 and 41a while shifting from the previous mounting position as necessary. The auxiliary absorbent 9 is attached based on the positioning pattern 4 by, for example, aligning the edge with the line 41 or the line 41 a of the positioning pattern 4. For example, when excretion is biased to the wearer's stomach side and right side, the auxiliary absorbent 9 is attached to the (+ X) side and (+ Y) side in FIG.

  As explained above, in the absorbent article 1, the grid-like positioning pattern 4 is provided on the top sheet 21, thereby easily specifying the mounting position of the auxiliary absorbent 9 that matches the excretion tendency of the wearer. Can do. As a result, when the auxiliary absorbent 9 was replaced, the auxiliary absorbent 9 was easily positioned with respect to the absorbent article 1, and the same size of the auxiliary absorbent 9 was changed to the same or appropriately on the absorbent article 1. It can be attached to the attachment position. Further, when the auxiliary absorbent device 9 is exchanged by a plurality of caregivers in turn, information on an appropriate mounting position of the auxiliary absorbent device 9 (for example, the first line 41 from the right side and the eleventh line from the ventral side). The information that one corner portion of the auxiliary absorbent 9 is attached to the intersection with 41 can be accurately transmitted to other caregivers.

  In addition, when the absorbent article 1 is worn, first, the auxiliary absorbent device 9 is applied to an appropriate wearing part of the wearer, and then the absorbent article 1 is worn over the auxiliary absorbent device 9. Also good. Even in such a case, in the absorbent article 1, the positioning pattern 4 is provided up to the end in the longitudinal direction of the main body 2, so the relative attachment position of the auxiliary absorbent 9 with respect to the absorbent article 1. Can be easily identified to fit the wearer's excretion tendency.

  In the absorbent article 1, in the positioning pattern 4, the line 41 a having a different thickness is provided for each fixed number of lines 41, so that the attachment position of the auxiliary absorbent 9 can be specified more easily. Further, since the positioning pattern 4 is formed on the top sheet 21 by printing, the positioning pattern 4 can be easily provided.

  FIG. 3 is a plan view showing an absorbent article 1a according to the second embodiment of the present invention. In the absorbent article 1a, the positioning pattern 4a, which is a pattern of lattice points extending at equal intervals in the longitudinal direction and the width direction of the main body 2, is formed by a colored hot melt adhesive applied to the absorbent core 22 side of the top sheet 21. Is done. Other configurations are the same as those in FIG. 1, and the same reference numerals are given in the following description.

  The points 42 of the positioning pattern 4a are arranged with an interval of about 5 to 10 mm in the longitudinal direction and the width direction, and different points 42a (in this embodiment, every five) in a certain number (in this embodiment). , A point larger than the point 42). When the main body 2 is formed, a colored hot-melt adhesive is applied to the surface of the top sheet 21 on the side of the absorbent core 22 in the form of lattice dots, and the top sheet 21 and the back sheet 23 with the absorbent core 22 interposed therebetween. Are glued together.

  In the absorbent article 1a, in accordance with the wearer's excretion tendency, the auxiliary absorbent device 9 is supplemented based on the positioning pattern 4a by superimposing each corner or edge of the auxiliary absorbent device 9 on the point 42 or the point 42a of the positioning pattern 4a. 9 is attached.

  As described above, in the absorbent article 1a, the absorbent article 1a is manufactured by bonding the top sheet 21, the absorbent core 22 and the back sheet 23 and forming the positioning pattern 4a in the same process. It can be simplified. For bonding the top sheet 21, the absorbent core 22, and the back sheet 23, an adhesive other than the hot melt adhesive used for forming the positioning pattern 4a may be used in combination.

  In the absorbent article 1a, as in the first embodiment, the auxiliary absorbent device 9 is attached based on the positioning pattern 4a. Therefore, the attachment position of the auxiliary absorbent device 9 that fits the wearer's excretion tendency is easy. Can be specified. Further, in the positioning pattern 4a, the point 42a having a different size is provided for each fixed number of points 42, so that the attachment position of the auxiliary absorbent 9 can be specified more easily.

  FIG. 4 is a plan view showing an absorbent article 1b according to the third embodiment of the present invention. As in the second embodiment, the positioning pattern 4b of the absorbent article 1b is a pattern of lattice points extending in the longitudinal direction and the width direction of the main body 2, and the points 42 forming the positioning pattern 4b are in the longitudinal direction. Further, the points 42a are different for every certain number in the width direction. In the absorbent article 1b, the density of the points 42 and 42a in the (+ X) side and (−Y) side portions of the positioning pattern 4b (that is, the portion in contact with the wearer's back side and the right side) is the point in other portions. It is higher than the density of 42 and 42a. Hereinafter, the part where the density of the points 42 and 42a is high in the positioning pattern 4b is referred to as a “high density part 43”.

  The absorbent article 1b is used by a wearer whose excretion tends to be biased to the back side and the right side, and the auxiliary absorbent 9 is located on the (+ X) side and (−Y) side in FIG. In other words, they are attached by being shifted to the high density portion 43 side. In the absorbent article 1b, the corner portions of the auxiliary absorbent device 9 corresponding to the back side and the right side of the wearer can be accurately positioned in accordance with the wearer's excretion tendency, and delicate adjustment is also possible. Further, due to the density of the points 42, the caregiver who replaces the absorbent article 1 can quickly grasp to which side the attachment position of the auxiliary absorbent 9 should be shifted.

  As mentioned above, although embodiment of this invention has been described, this invention is not limited to the said embodiment, A various change is possible.

  For example, in FIG. 1, the lines 41 and 41a of the positioning pattern 4 are solid lines, but the lines 41 and 41a may be substantially regarded as lines such as a broken line or a dotted line. Similarly, the points 42 and 42a shown in FIG. 3 may be squares, diamonds, stars, or the like as long as they can be substantially regarded as points. Furthermore, the positioning pattern of the absorbent article may be a set of figures of various other shapes that can be used for specifying the attachment position of the auxiliary absorbent 9 with respect to the main body 2.

  In the absorbent article 1b according to the third embodiment, the high-density portion 43 may be provided in other portions of the positioning pattern 4b according to the user, and a plurality of high-density portions are included in the positioning pattern 4b. The part 43 may be provided. FIG. 5 is a plan view showing a surface on the wearer side in a state where the pant-type absorbent article 1c is stretched. As shown in FIG. 5, in the absorbent article 1c, the positioning pattern 4c is formed so that the density of the lines 41 and 41a gradually increases toward the (+ X) side and the (-Y) side of the positioning pattern 4c. . In the absorbent article 1c, as in the case of FIG. 4, the position of the corner portion (or edge) of the auxiliary absorbent 9 is adjusted with high accuracy on the portion where the lines 41, 41a are provided at high density. Can be positioned. As described above, the density of the line or point in at least a part of the positioning pattern is made higher than the density in the other part, thereby positioning a specific part of the auxiliary absorbent device 9 according to the excretion tendency of the wearer. It can be performed with high accuracy.

  In the absorbent article, the nonwoven fabric manufactured by various production methods such as the spunlace method, the needle punch method, the thermal bond method, the spunbond method, the chemical bond method, and the air-through method is used. Can be used as

  As shown in the above embodiment, the technique of providing a positioning pattern for an auxiliary absorbent on the top sheet of an absorbent article can be used for open-type or pants-type disposable diapers and other various absorbent articles.

It is a top view which shows the absorbent article which concerns on 1st Embodiment. It is sectional drawing of an absorbent article. It is a top view which shows the absorbent article which concerns on 2nd Embodiment. It is a top view which shows the absorbent article which concerns on 3rd Embodiment. It is a top view which shows a pants type absorbent article.

Explanation of symbols

1, 1a-1c Absorbent article 4, 4a-4c Positioning pattern 21 Top sheet 22 Absorbing core 23 Back sheet 41, 41a Line 42, 42a Point 43 High density part

Claims (6)

An absorbent article that receives excrement from a wearer,
An absorbent core;
A top sheet that covers the main surface of the absorbent core on the wearer side and can be attached with an auxiliary absorbent on the wearer side;
A backsheet covering the other main surface of the absorbent core;
With
The top sheet comprises a positioning pattern used for specifying the attachment position of the auxiliary absorbent with respect to the longitudinal direction and the width direction perpendicular to the longitudinal direction ,
The positioning pattern is a lattice-shaped pattern formed by lines extending in the longitudinal direction and the width direction or a pattern of lattice points extending in the longitudinal direction and the width direction,
An absorbent article, wherein a length of the positioning pattern in the longitudinal direction is longer than that of the auxiliary absorbent, and a width of the positioning pattern in the width direction is wider than that of the auxiliary absorbent . The absorbent article according to claim 1,
The absorbent article, wherein the positioning pattern is provided up to an end portion of the top sheet in the longitudinal direction. The absorbent article according to claim 1 or 2,
The absorbent article, wherein a line of the lattice pattern or a point of the pattern of lattice points is a different line or point for each predetermined number in the longitudinal direction and the width direction. The absorbent article according to any one of claims 1 to 3,
An absorbent article, wherein a density of a pattern in at least a part of the positioning pattern is higher than a density in another part. The absorbent article according to any one of claims 1 to 4,
The absorbent article, wherein the positioning pattern is formed on the top sheet by printing. The absorbent article according to any one of claims 1 to 4,
The absorbent article, wherein the positioning pattern is a colored hot melt adhesive applied to the absorbent core side of the top sheet.

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