JP5996942B2 - Absorbent sheet for pet - Google Patents

Description

  The present invention relates to an absorbent sheet for pets.

  Conventionally, absorptive sheets for pets for absorbing urine and the like excreted by pets such as dogs and cats have become widespread (see, for example, Patent Document 1). Due to the diversification of pet breeding patterns in recent years, pet absorbent sheets have shifted from those that need to be replaced every day to those that can be used over a relatively long period of time, once in a few days. I am doing.

Such a pet absorbent sheet is used, for example, by being set in a pet toilet for treating pet excrement.
As a toilet for pets, for example, the toilet body is divided into upper and lower parts by liquid-permeable cocoons, and a granular excrement disposal material forming a toilet bed is laid on the upper layer part, and the above-described tray is drawn on the lower layer part. A two-layer type is known in which an absorbent sheet for pets is laid and used.
In such a pet toilet, the excrement disposal material laid in the upper layer allows the pet's excretion fluid to pass through quickly, drops the excreted fluid that has passed through the lower layer through the hole of the spider child, and the excreted fluid that has fallen. Is absorbed by the absorbent sheet for pets laid on the lower tray.
The tray is generally rectangular in plan view, and when the pet absorbent sheet is set, it is pulled out from the toilet body, and the pet absorbent sheet is inserted into the tray from one end in the longitudinal direction. It has become.

  The pet absorbent sheet includes a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, and is formed in a substantially rectangular shape in plan view. Is known. Such an absorbent sheet for pets is generally provided with fold lines S11 and S12 parallel to the width direction (short direction) as shown in FIG. 15, and is wrapped in a state of being folded by the fold lines S11 and S12. When deployed, it is expanded into a flat state.

JP 2010-51261 A

However, in the above-described pet absorbent sheet, since the fold lines S11 and S12 are parallel to the width direction, the fold lines S11 and S12 are perpendicular to the insertion direction into the tray, as shown in FIG. The absorbent sheet for pets was easily bent when inserted into the tray, and it was difficult to insert the sheet, and a gap was easily generated between the tray and the tray after insertion.
For this reason, when the excretory fluid flows from the upper layer part of the pet toilet, there is a problem in that the pet absorbent sheet cannot receive this and the moisture is generated, resulting in the generation of odor. Such a problem is particularly remarkable in a pet absorbent sheet used for a relatively long period of time.

  The subject of this invention is providing the absorbent sheet for pets which is easy to insert in the tray of a pet toilet, and a clearance gap is hard to generate | occur | produce between trays after insertion.

In order to solve the above-mentioned problem, the invention described in claim 1
In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The rigidity reinforcing part includes an adhesive part bonded with a hot melt adhesive between the top sheet and the absorber .
The invention described in claim 2
In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The said rigidity reinforcement part contains the tape member provided in the outer surface of the said back surface sheet, It is characterized by the above-mentioned.
The invention according to claim 3
In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The said rigidity reinforcement | strengthening part is provided in the said surface sheet side of the said absorber, and includes the airlaid layer formed by joining a fiber with a binder .

Moreover, the invention according to claim 4 is the pet absorbent sheet according to any one of claims 1 to 3 ,
The rigidity reinforcing portion includes a folding line that can be folded so that the topsheet is inside.

In addition, the invention according to claim 5 is the pet absorbent sheet according to any one of claims 1 to 4 ,
The rigidity-enhancing portion includes an embossed portion in which the absorber is formed thinner and denser than other portions .

Moreover, invention of Claim 6 is an absorbent sheet for pets of Claim 5 ,
The embossed portion includes a high compression portion and a low compression portion having different depths in the thickness direction.

Further, the invention according to claim 7 is the pet absorbent sheet according to claim 5 or 6 ,
The embossed portion is provided at a predetermined position set in advance from both lateral ends of the pet absorbent sheet on both side edges of the pet absorbent sheet.

According to the present invention, the pet absorbent sheet has a substantially rectangular shape in a plan view having a short side and a long side, and includes a rigidity reinforcing portion extending along the long side.
For this reason, since the rigidity in the longitudinal direction of the absorbent sheet for pets is increased, and the sheet can be prevented from bending when inserted into the tray of the pet toilet from one end in the longitudinal direction, It is easy to insert, and it becomes difficult to generate a gap between the tray after insertion.
Therefore, when excretory fluid flows from the upper layer of the toilet for pets, it is difficult for the pet absorbent sheet to receive this, and it is difficult for the leakage to occur, and an odor due to the leakage occurs. Can be prevented.

It is a top view which shows an example of the absorbent sheet for pets concerning embodiment of this invention. It is sectional drawing in the II-II line of FIG. It is a figure which shows a mode that the absorbent sheet for pets of FIG. 1 was folded. It is a figure which shows a mode that the absorbent sheet for pets of FIG. 1 is inserted in the tray of a pet toilet. It is a top view which shows an example which changed the position of the folding line of the absorbent sheet for pets. It is a top view which shows an example of the absorbent sheet for pets which concerns on the modification 1. FIG. It is sectional drawing in the VII-VII line of FIG. (A) is an enlarged plan view which shows the embossing part of FIG. 6, (b) is sectional drawing in an AA line. It is a top view which shows an example of the absorptive sheet for pets concerning the modification 2. It is sectional drawing in the XX line of FIG. It is a top view which shows an example of the absorptive sheet for pets concerning the modification 3. It is sectional drawing in the XII-XII line | wire of FIG. It is a top view which shows an example of the absorbent sheet for pets which concerns on the modification 4. It is sectional drawing in the XIV-XIV line | wire of FIG. It is a top view which shows an example of the conventional absorbent sheet for pets. It is a figure for demonstrating the problem of the conventional pet absorbent sheet.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

First, the configuration will be described.
For example, as shown in FIG. 1, the pet absorbent sheet 1 according to the present embodiment is formed in a substantially rectangular shape in plan view having a short side and a long side, and the moisture of excreta excreted by the pet from the surface is obtained. It can be absorbed into the sheet.
In the following description, the longitudinal direction along the long side of the pet absorbent sheet 1 is defined as the X direction, and the short direction (width direction) orthogonal to the X direction is defined as the Y direction. Moreover, let the thickness direction of the absorbent sheet 1 for pets be a Z direction.

  For example, as shown in FIGS. 1 and 2, the pet absorbent sheet 1 includes a liquid-permeable surface sheet 11 that quickly allows liquid such as urine to pass therethrough, and an impermeable liquid that is disposed on the back side of the surface sheet 11. The back sheet 12 of the nature, the absorber 13 interposed between the top sheet 11 and the back sheet 12, and the like are configured.

The top sheet 11 is provided in a size that covers the top surface of the absorber 13. The top sheet 11 is liquid permeable and is formed of a porous or non-porous nonwoven fabric, a porous plastic sheet, or the like. As the raw material fibers constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. In addition, as a method for producing the nonwoven fabric, a known method can be appropriately used. For example, the nonwoven fabric is obtained by a spunlace method, a spunbond method, a thermal bond method, a melt blow method, a needle punch method, or a combination of these methods. Can be manufactured.
When a large number of through holes are formed in the top sheet 11, liquid such as urine is absorbed more quickly, and the dry touch property is excellent.

The back sheet 12 covers the bottom surface of the absorber 13, further covers the end surface of the absorber 13, and is folded back toward the top sheet 11 at both longitudinal side edges of the top surface of the absorber 13. And the surface sheet 11 is adhere | attached on the upper surface of the folded part of the back surface sheet 12 with a hot-melt-adhesive, a heat seal, an ultrasonic seal, etc.
The back sheet 12 is not particularly limited as long as it is a liquid-impermeable material. For example, a plastic film made of an olefin resin such as polyethylene or polypropylene, or a plastic film is provided on the surface of the nonwoven fabric. Examples thereof include a laminated nonwoven fabric and a laminated sheet obtained by laminating a nonwoven fabric on a plastic film. In addition, non-woven fabric using micro-denier fiber, enhanced leakage prevention by reducing fiber voids by applying heat or pressure, coating with superabsorbent resin or hydrophobic resin or water repellent Thus, a sheet which is liquid-impermeable without using a plastic film can also be used as the back sheet. Further, the back sheet 12 may have a liquid-absorbing outermost surface, such as a sheet in which a leak-proof sheet and a liquid-absorbing sheet are combined. Thereby, even if liquid such as urine oozes out from the joint between the absorbent sheets for pets 1, it can be hygienic because it can be absorbed by the liquid absorbing sheet in a small amount.

The absorber 13 absorbs water-like components such as urine, and can be formed of, for example, an aggregate of fibers. As this fiber assembly, a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate as well as short fibers such as cotton-like pulp and synthetic fibers Can also be used. Moreover, a super absorbent polymer (SAP; Super Absorbent Polymer hereafter abbreviated as “SAP”) may be combined with the fiber assembly to constitute an absorbent body.
SAP includes carboxymethylcellulose, polyacrylic acid and its salts, acrylate polymer cross-linked product, starch-acrylic acid graft copolymer, starch-acrylonitrile graft copolymer hydrolyzate, polyoxyethylene cross-linked product, carboxy A cross-linked product of water-swellable polymer such as methyl cellulose cross-linked product, polyethylene oxide, polyacrylamide, or a copolymer of isobutylene and maleic acid is preferably used.
Furthermore, in order to give a deodorant function, you may put a deodorizer in the absorber 13. FIG. As the deodorant, for example, activated carbon, natural minerals (for example, bentonite, kaolinite, kanemite, etc.), synthetic inorganic substances (zeolite, amorphous silica, etc.) can be used.
The absorber 13 is formed by being wrapped with crepe paper (not shown).

Such a pet absorbent sheet 1 includes two pieces that extend along the X direction (longitudinal direction) at a position that divides the pet absorbent sheet 1 into approximately three equal parts in the Y direction (short direction). Folding lines S1 and S2 are provided, and one folding line S3 extending along the Y direction is provided at a position that bisects the pet absorbent sheet 1 in the X direction.
For this reason, the pet absorbent sheet 1 is folded in three in the Y direction at the fold lines S1 and S2 as shown in FIGS. 3A and 3B, for example, as shown in FIG. The fold line S3 can be packaged in a state of being folded in the X direction, and is unfolded during use to be in a flat state.
Since the pet absorbent sheet 1 can be folded small in the Y direction and the X direction by the fold lines S1, S2, and S3 in this way, it is highly convenient to store and carry.
The fold lines S1, S2, and S3 are formed by stacking the top sheet 11, the back sheet 12, and the absorber 13, and then folding the pet absorbent sheet 1 at a predetermined position.

Next, the operation will be described.
The pet absorbent sheet 1 according to the present embodiment is used by being set, for example, in a pet toilet 100 for processing pet excreta.

Here, the pet toilet 100 will be described.
For example, as shown in FIG. 4, the pet toilet 100 includes a toilet main body 101 and a tray 102 that can be pulled out from the toilet main body 101.

The toilet body 101 is a box having a substantially rectangular parallelepiped shape with an open upper surface, and the inside thereof is partitioned vertically by a liquid-permeable bowl 101a.
A granular excrement disposal material (not shown) that forms a toilet bed is laid on the litter piece 101a of the toilet body 101.
As the excrement disposal material, for example, a material composed of a pulverized material derived from a plant and a molded product containing a synthetic resin is used. Since these molded articles have a low water absorption rate of preferably 1 to 10%, more preferably 1 to 5%, the urine or the like excreted by the pet is allowed to pass through quickly so The liquid is dropped into the lower layer portion through the liquid permeable hole 101b, and the excretory fluid is positively absorbed by the pet absorbent sheet 1 in the tray 102 arranged in the lower layer portion.

The tray 102 is formed in a tray shape that is substantially rectangular in plan view.
The tray 102 is disposed in the lower layer portion of the toilet body 101 in a state where the pet absorbent sheet 1 is laid, and receives the excretion liquid that has fallen through the liquid-permeable hole 101b of the scissors litter 101a.
When replacing the pet absorbent sheet 1, the tray 102 is pulled out along the longitudinal direction from a drawer port 101 c formed in the lower end surface of the toilet body 101.

When the pet absorbent sheet 1 is set on the tray 102 of the pet toilet 100, the pet absorbent sheet 1 is unfolded from the folded state and is in a flat state.
The pet absorbent sheet 1 in a flat state is inserted from one end of the X direction (longitudinal direction) into the tray 102 in a state of being pulled out from the toilet body 101.
At this time, since the two fold lines S1 and S2 of the pet absorbent sheet 1 coincide with the insertion direction of the pet absorbent sheet 1 into the tray 102, the pet absorbent sheet 1 is placed on the tray 102. When inserted, the posture of the pet absorbent sheet 1 is easily maintained, and the pet absorbent sheet 1 is prevented from being bent.
That is, the two fold lines S1 and S2 extending along the X direction of the pet absorbent sheet 1 function as a rigidity reinforcing portion that increases the rigidity of the pet absorbent sheet 1 in the X direction. Therefore, the pet absorbent sheet 1 is easy to insert into the tray 102, and it is difficult for a gap to be generated between the pet absorbent sheet 1 and the tray 102 after insertion.

  In addition, when using such a pet absorbent sheet 1 and a pet absorbent sheet having a fold line extending along the conventional Y direction (width direction), sensory evaluation of ease of putting in the tray, Eight out of 10 people evaluated that the pet absorbent sheet 1 of the present embodiment was easier to put.

As described above, according to this embodiment, the pet absorbent sheet 1 has a substantially rectangular shape in plan view having a short side and a long side, and serves as a rigidity reinforcing portion extending along the long side. Folding lines S1 and S2 are provided so that 11 can be folded inside.
For this reason, the rigidity in the X direction (longitudinal direction) of the pet absorbent sheet 1 is enhanced, and the pet absorbent sheet 1 is absorbed when inserted into the tray 102 of the pet toilet 100 from one end in the longitudinal direction. Since the sheet 1 can be prevented from being bent, it can be easily inserted into the tray 102, and a gap is hardly generated between the tray 102 and the tray 102 after the insertion.
Therefore, when the excretory fluid flows from the upper layer portion of the pet toilet 100, it is difficult for the pet absorbent sheet 1 to receive this, and it is difficult to generate a leak, and an odor due to the leak occurs. Can be prevented.

In addition, in the said embodiment, although the structure which has folding line S1, S2, S3 was illustrated and demonstrated, the number of folding lines is not limited to this.
Moreover, in the said embodiment, although folding line S1, S2 illustrated and demonstrated the structure provided along the X direction in the position which divides the pet absorbent sheet 1 into about three equal parts in the Y direction, folding was demonstrated. The positions of the lines S1 and S2 are not limited to this as long as the compactness after folding and the operation stability are good. For example, as shown to Fig.5 (a)-(c), it folds along the X direction to the position which uses the absorbent sheet 1 for pets as a kannon folding in the Y direction instead of the folding lines S1 and S2. Lines S4 and S5 may be provided.

<Modification 1>
Next, the pet absorbent sheet 1A of Modification 1 will be described.
For example, as shown in FIGS. 6 and 7, the pet absorbent sheet 1 </ b> A according to the first modification compresses the absorbent body 13 in the Z direction (thickness direction) in addition to the fold lines S <b> 1 and S <b> 2 as a rigidity reinforcing portion. The embossing parts 14 and 14 formed in this way are provided.

The embossed portions 14 and 14 are formed so as to extend along the X direction at both longitudinal edges of the pet absorbent sheet 1A, and are formed by compressing the absorbent body 13 to compare with the surroundings. Therefore, the hardness is high, so that the rigidity in the X direction can be increased.
The embossed portions 14 and 14 are preferably formed with a width of 1 to 5 mm, for example. If the width of the embossed portions 14 and 14 is smaller than 1 mm, the absorber 13 may be cut off and the rigidity may not be increased. If it is larger than 5 mm, the possibility of preventing the SAP of the absorber 13 from expanding is increased. It is.
The embossed portions 14 and 14 are formed in parallel with the machine flow direction from the upper surface side by an embossing roll after forming an absorbent body 13 by wrapping an absorbent body made of a fiber assembly or SAP with crepe paper, for example. Is. The absorbent body 13 to which the embossed portions 14 and 14 are applied is covered with the back surface sheet 12 provided on the lower surface side so that both longitudinal edges are on the upper surface side, and then the surface sheet 11 is provided from the upper surface side.
Moreover, it is also possible to give the embossing parts 14 and 14 after bonding the surface sheet 11 to the absorber 13. FIG.

  Moreover, as the embossing part 14, as shown to Fig.8 (a) (b), it is preferable to provide alternately the high compression part 141 and the low compression part 142 from which the depth of a Z direction mutually differs, for example. By doing in this way, the shape of the embossing part 14 can be maintained easily after embossing.

By configuring in this way, the pet absorbent sheet 1A of the first modified example increases the rigidity of both side edges of the pet absorbent sheet 1A that are most flexible in the pet absorbent sheet 1A. When inserting into the tray 102 of the toilet 100 from one end in the longitudinal direction, the pet absorbent sheet 1A can be more effectively prevented from being bent, and can be easily inserted into the tray 102. It becomes difficult to generate a gap between them.
Further, when excreted at the end of the pet absorbent sheet 1A, the embossed portions 14 and 14 increase the density of the absorbent and facilitate the diffusion of excreted liquid, so that the absorbent performance of the absorbent 13 can be effectively utilized. . Moreover, when excreted in the center part of 1 A of pet absorbent sheets, the embossed parts 14 and 14 function as a groove | channel, and can suppress the spreading | diffusion to an edge part.
Furthermore, the conformity to the tray 102 can be improved by bending the pet absorbent sheet 1 </ b> A by the embossed portions 14, 14.
Therefore, it is preferable that the embossed portions 14 and 14 are provided at predetermined positions set in advance from both longitudinal side edges (both ends in the Y direction) at both longitudinal side edges of the pet absorbent sheet 1A. It is preferable to be provided so as to extend along the X direction at a position of 10 to 30 mm from both longitudinal side edges (both ends in the Y direction).

In addition, although illustration is abbreviate | omitted, it is good also as forming folding line S1, S2 by the embossing part 14. FIG.
Moreover, although illustration is abbreviate | omitted, it is good also as giving a grid-like embossing etc. to parts other than the embossing part 14, for example.
Moreover, it can also be set as the structure provided only with the embossing parts 14 and 14 as the rigidity reinforcement | strengthening part, without providing folding line S1, S2.

  In addition to the two embossed portions 14 extending along the X direction, a plurality of embossed portions 14 may be provided so as to extend along the X direction.

<Modification 2>
Next, the pet absorbent sheet 1B of Modification 2 will be described.
For example, as shown in FIGS. 9 and 10, the pet absorbent sheet 1 </ b> B of Modification 2 is a hot melt between the top sheet 11 and the absorbent body 13, in addition to the fold lines S <b> 1 and S <b> 2. Adhesive portions 15 and 15 bonded by a mold adhesive are provided.

The adhesion parts 15 and 15 are formed so that it may extend along the X direction in the longitudinal both-sides edge part of the said pet absorbent sheet 1B.
Such adhesive portions 15 and 15 are preferably formed in a band shape with a width of 2 to 10 mm, for example. This is because if the width of the bonding portion 15 is smaller than 2 mm, desired rigidity cannot be exhibited, and if it is larger than 10 mm, the absorption of excretory fluid may be hindered.
Since the adhesive portions 15 and 15 are formed by curing the adhesive between the top sheet 11 and the absorbent body 13, the adhesive portions 15 and 15 have a higher hardness than the surroundings, and thus it is possible to increase the rigidity in the X direction. It has become.

  By configuring in this way, the pet absorbent sheet 1B of the modified example 2 increases the rigidity of the longitudinal side edges that are most flexible in the pet absorbent sheet 1B, so that the pet absorbent sheet 1B can be used as a pet. When inserting into the tray 102 of the toilet 100 from one end in the longitudinal direction, the pet absorbent sheet 1B can be more effectively prevented from being bent, and can be easily inserted into the tray 102. It becomes difficult to generate a gap between them.

In addition, although illustration is abbreviate | omitted, it is good also as providing the adhesion parts 15 and 15 so that folding line S1 and S2 may overlap.
Moreover, as a rigidity reinforcement | strengthening part, it is good also as a structure which is not provided with folding line S1, S2, and is provided only with the adhesion parts 15 and 15, and as a rigidity reinforcement part, in addition to folding line S1, S2, and the adhesion parts 15 and 15, It is good also as providing the embossing parts 14 and 14. FIG.
Further, in addition to the two bonding portions 15 and 15 extending along the X direction, a plurality of bonding portions 15 and 15 may be provided along the X direction.

<Modification 3>
Next, the pet absorbent sheet 1C of Modification 3 will be described.
For example, as shown in FIGS. 11 and 12, the pet absorbent sheet 1 </ b> C of Modification 3 extends along the X direction on the outer surface of the back sheet 12 in addition to the fold lines S <b> 1 and S <b> 2 as a rigidity reinforcing portion. Tape members 16 and 16 are provided.

The tape members 16 and 16 are provided on the outer surface of the back sheet 12 so as to overlap the fold lines S1 and S2, for example, and the width is preferably 10 to 30 mm.
As the tape member 16, a belt-like member which is provided with an adhesive layer on one surface of a base sheet having a predetermined rigidity and can be attached from the outer surface of the back sheet 12 is preferable.
When such tape members 16 and 16 are adhered, the rigidity of the base sheet is increased compared to the surroundings, and therefore the rigidity in the X direction can be increased.

  By configuring in this way, the pet absorbent sheet 1C according to the modified example 3 has higher rigidity in the X direction, and therefore the pet absorbent sheet 1C is placed on the tray 102 of the pet toilet 100 from one end in the longitudinal direction. When inserting, it can prevent more effectively that the pet absorbent sheet 1B bends, it is easy to insert into the tray 102, and it becomes difficult to generate a gap between the tray 102 after the insertion.

In addition, as a rigidity reinforcement | strengthening part, it is good also as a structure which is not provided with folding line S1, S2, and is provided with only tape members 16 and 16, and as a rigidity reinforcement part, in addition to folding line S1, S2 and tape members 16 and 16, It is good also as providing the adhesion parts 15 and 15 and / or the embossing parts 14 and 14. FIG.
In addition to the two tape members 16 and 16 extending along the X direction, a plurality of tape members 16 and 16 may be provided along the X direction.

<Modification 4>
Next, the pet absorbent sheet 1D of Modification 4 will be described.
For example, as shown in FIGS. 13 and 14, the pet absorbent sheet 1 </ b> D according to the modified example 4 is a rigid reinforcing portion along the X direction on the top sheet 11 side of the absorbent body 13 in addition to the fold lines S <b> 1 and S <b> 2. The airlaid layers 17 and 17 are formed by bonding fibers with a binder.

  The airlaid layers 17 and 17 are provided so as to overlap the fold lines S1 and S2, and the width is preferably 20 to 40 mm.

Airlaid layers 17 and 17 are made of an airlaid nonwoven fabric. Airlaid non-woven fabric is, for example, a mixture of hydrophilic fibers and thermoplastic resin fibers dispersed in the air, passed through a screen having a wire mesh and pores, and dropped on a wire running below, It is manufactured by spraying a water-soluble binder, applying heat treatment, and thermally welding the thermoplastic resin fibers and the hydrophilic fibers. Instead of using a water-soluble binder, the surface of the thermoplastic resin fiber may be fused to the hydrophilic fiber and the thermoplastic resin fiber and the hydrophilic fiber may be heat-welded. In this case, the surface of the thermoplastic resin fiber serves as a binder for thermally welding the thermoplastic resin fiber and the hydrophilic fiber.
The airlaid layers 17 and 17 have a higher hardness than the absorber 13 and can therefore increase the rigidity in the X direction.

  By configuring in this way, the pet absorbent sheet 1D according to the modified example 4 has higher rigidity in the X direction, and therefore the pet absorbent sheet 1D is placed on the tray 102 of the pet toilet 100 from one end in the longitudinal direction. When inserting, it can prevent more effectively that the pet absorbent sheet 1B bends, it is easy to insert into the tray 102, and it becomes difficult to generate a gap between the tray 102 after the insertion.

In addition, as a rigidity reinforcement | strengthening part, it is good also as a structure which is not provided with fold line S1, S2, and is provided only with airlaid layers 17 and 17, and as a rigidity reinforcement part other than fold line S1, S2, airlaid layers 17 and 17, One or a plurality of embossed portions 14 and 14, adhesive portions 15 and 15, and tape members 16 and 16 may be provided.
In addition to the two airlaid layers 17 and 17 extending along the X direction, a plurality of airlaid layers 17 and 17 may be provided along the X direction.

1, 1A, 1B, 1C, 1D PET absorbent sheet 11 Top sheet 12 Back sheet 13 Absorber S1, S2, S4, S5 Folding line (rigidity strengthening part)
S3 Folding line 14 Embossed part (stiffened part)
141 High compression part 142 Low compression part 15 Bonding part (stiffening part)
16 Tape member (stiffened part)
17 Airlaid layer (stiffened part)
100 Pet toilet 101 Toilet body 102 Tray

Claims (7)

In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The said rigidity reinforcement | strengthening part contains the adhesion part adhere | attached with the hot-melt-type adhesive agent between the said surface sheet and the said absorber , The absorbent sheet for pets characterized by the above-mentioned. In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The said rigidity reinforcement | strengthening part contains the tape member provided in the outer surface of the said back surface sheet, The absorbent sheet for pets characterized by the above-mentioned . In the absorbent sheet for pets composed of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet,
Presents a substantially rectangular shape in plan view having a short side and a long side,
Comprising a rigidity reinforcing portion extending along the long side,
The said rigidity reinforcement | strengthening part is provided in the said surface sheet side of the said absorber, and includes the air laid layer formed by joining a fiber with a binder, The absorbent sheet for pets characterized by the above-mentioned. The absorbent sheet for pets according to any one of claims 1 to 3, wherein the rigidity reinforcing portion includes a fold line that can be folded so that the top sheet is inside. The pet absorption according to any one of claims 1 to 4, wherein the rigidity reinforcing portion includes an embossed portion in which the absorbent body is thinner and denser than other portions. Sex sheet. 6. The pet absorbent sheet according to claim 5 , wherein the embossed portion includes a high compression portion and a low compression portion having different depths in the thickness direction. The embossing unit, in the longitudinal side edges of the pet absorbent sheet according to claim 5 or, characterized in that provided in the previously set predetermined position from the widthwise opposite ends of the pet absorbent sheet 6. An absorbent sheet for pets according to 6 .

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