JP2013009645A - Absorptive sheet for pet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent urine from leaking at the end part of a sheet.SOLUTION: This absorptive sheet for a pet 1 having a liquid permeable surface sheet 2, a liquid impermeable rear surface sheet 3 and an absorbent installed between the surface sheet 2 and rear surface sheet 3 is provided by having folded back parts 4 in which the circumferential edge of the absorptive sheet for the pet 1 is folded back to the surface sheet 2 side, bonded parts 5 obtained by bonding the opposing surfaces of the folded back parts 4 opposing with each other, and non-bonded parts 6 without bonding the opposing surfaces of the folded back parts 4 opposing with each other, at the bonded parts 5, installing a rubber thread 7 at the staring point of the folding back of the folded back parts 4 along the longitudinal direction of the folded back parts 4, and at the non-bonded parts 6, installing another rubber thread 8 at the tip end of the folded back parts 4 along the longitudinal direction of the folded back parts 4.

Description

  The present invention relates to an absorbent sheet for pets.

  Conventionally, absorptive sheets for pets for absorbing urine etc. excreted by pets such as dogs and cats have become widespread. As such a pet absorbent sheet, a configuration including a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet is known. Yes.

  Since pets often excrete urine in the vicinity of the end of the sheet, the urine leaks from the end of the sheet, causing overflow and contamination on the floor.

  In order to prevent leakage of urine from the edge of the sheet, for example, an edge formed by folding back the end of the back sheet or the end of the top sheet and the back sheet joined together along the longitudinal direction of the sheet The technique which makes a part stand up with an expansion-contraction member and makes a wall is proposed (refer patent document 1).

JP 2002-58371 A

  However, even if the end portion of the sheet is folded to form a wall as in the above prior art, urine flows side by side, and it is difficult to reliably prevent leakage of urine.

  The present invention has been made in view of the above problems in the prior art, and an object of the present invention is to prevent urine from leaking from the end of the sheet.

In order to solve the above-mentioned problem, the invention described in claim 1
In an absorbent sheet for pets having a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the surface sheet and the back sheet,
A folded portion in which the peripheral edge of the pet absorbent sheet is folded back to the surface sheet;
An adhesive part in which the opposing surfaces of the folded part are bonded to each other;
A non-adhesive portion where the opposing surfaces of the folded portion are not bonded to each other;
Have
An elastic member is provided for each of the bonding portion and the non-bonding portion along the longitudinal direction of the folded portion.

The invention according to claim 2 is the absorbent sheet for pets according to claim 1,
The adhesive member is provided with the elastic member along the longitudinal direction of the folded portion at the folding start point of the folded portion,
The non-adhesive part is characterized in that the elastic member is provided at the tip of the folded part along the longitudinal direction of the folded part.

The invention according to claim 3 is the absorbent sheet for pets according to claim 1 or 2,
The non-bonding portion is provided with a second absorber.

The invention according to claim 4 is the absorbent sheet for pets according to claim 3,
The non-bonded portion is characterized in that a slit is provided at the tip of the folded portion along the width direction of the folded portion.

The invention according to claim 5 is the pet absorbent sheet according to any one of claims 1 to 4,
A reinforcing material or an adhesive material is provided on the bottom surface of the pet absorbent sheet.

The invention according to claim 6 is the pet absorbent sheet according to any one of claims 1 to 5,
A perforation for separating the folded portion is provided along the longitudinal direction of the folded portion on the center side of the pet absorbent sheet from the folded portion.

  According to the present invention, the wall for blocking urine is formed by the adhesive portion, and the pocket for capturing urine is formed by the non-adhesive portion, so that leakage of urine from the end portion of the sheet can be prevented.

It is a perspective view of the absorptive sheet for pets in a 1st embodiment. (A) is sectional drawing of the adhesion part along AA of FIG. (B) is sectional drawing of the non-bonding part along BB of FIG. It is a schematic diagram of the absorbent sheet for pets in 1st Embodiment. (A) is sectional drawing of the adhesion part of the absorbent sheet for pets in 2nd Embodiment. (B) is sectional drawing of the non-bonding part of the absorptive sheet for pets in a 2nd embodiment. It is a bottom view of the absorptive sheet for pets in a 3rd embodiment. It is a bottom view of the absorptive sheet for pets in a 4th embodiment. It is a schematic diagram of the absorbent sheet for pets in 5th Embodiment. It is a figure which shows the state which combined the absorbent sheet for pets.

  Hereinafter, an embodiment of an absorbent sheet for pets according to 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 Embodiment]
First, a first embodiment of the present invention will be described.
FIG. 1 is a perspective view of a pet absorbent sheet 1 according to the first embodiment. The pet absorbent sheet 1 has a substantially rectangular shape. For example, the pet absorbent sheet 1 is used by being laid on a floor surface of a pet toilet, and absorbs moisture of excretion excreted by the pet from the surface into the sheet.

  The pet absorbent sheet 1 includes a liquid-permeable surface sheet 2 that allows a liquid such as urine to permeate quickly, a liquid-impermeable back sheet 3 disposed on the back surface side of the surface sheet 2, and the surface sheet 2 and the back surface. An absorbent body 10 (see FIGS. 2A and 2B) interposed between the sheet 3 and the like is provided.

The top sheet 2 is formed of a perforated or non-porous nonwoven fabric, a porous plastic sheet, or the like. As a raw material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or polyamide, recycled fibers such as rayon or 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 used as appropriate, and examples thereof include a spunlace method, a spunbond method, a thermal bond method, a melt blow method, a needle punch method, or a combination of these methods. .
When many through-holes are formed in the surface sheet 2, liquid such as urine is absorbed more quickly, and the dry touch property is excellent.

  The back sheet 3 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. A laminated nonwoven fabric, a laminated sheet in which a nonwoven fabric or the like is laminated on a plastic film, and the like can be used. In addition, by applying heat and pressure to reduce the voids of the fiber, or by applying a highly water-absorbent resin or hydrophobic resin or water repellent, a sheet that is liquid-impervious without using a plastic film It can be used as the back sheet 3.

  At the periphery of the pet absorbent sheet 1, the top sheet 2 and the back sheet 3 are bonded together by a hot melt adhesive, heat sealing, ultrasonic sealing or the like.

  The peripheral edge of the pet absorbent sheet 1 is folded back to the surface sheet 2 side to form a folded portion 4. The folded portion 4 is composed of an adhesive portion 5 where the opposed surfaces of the folded portion 4 that are opposed to each other are bonded, and a non-adhered portion 6 where the opposed surfaces of the folded portion 4 that are opposed are not bonded.

Fig.2 (a) is sectional drawing of the adhesion part 5 along AA of FIG.
In the pet absorbent sheet 1, an absorbent body 10 is interposed between the top sheet 2 and the back sheet 3.

The absorbent body 10 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) can be combined with a fiber assembly, and an absorber can also be comprised.
Examples of the superabsorbent resin include carboxymethyl cellulose, polyacrylic acid and salts thereof, acrylate polymer cross-linked product, starch-acrylic acid graft copolymer, starch-acrylonitrile graft copolymer hydrolyzate, polyoxyethylene cross-linked product Products, cross-linked products of water-swellable polymers such as polyethylene oxide and polyacrylamide, or copolymers of isobutylene and maleic acid are preferably used.
Furthermore, you may put a deodorizer in the absorber 10 in order to give a deodorant function. As the deodorant, for example, activated carbon, natural minerals (for example, bennite, kaolinite, kanemite, etc.) and synthetic inorganic substances (zeolite, amorphous silica, etc.) can be used.

  In the adhesion part 5, the surface sheets 2 of the folded part 4 are adhered to each other by hot melt adhesive, heat sealing, ultrasonic sealing, or the like. The adhesive part 5 is provided with a thread rubber 7 as an elastic member at the folding start point of the folded part 4 along the longitudinal direction of the folded part 4, and the folded part 4 stands up by the contraction force of the thread rubber 7. The wall W is formed. Since the folding | returning part 4 is formed in strip | belt shape in the periphery of the pet absorbent sheet 1, the longitudinal direction of the folded part 4 is the direction along the periphery of the pet absorbent sheet 1, that is, the pet absorbent. It is a direction along each side of the rectangular shape of the sheet 1.

FIG. 2B is a cross-sectional view of the non-bonded portion 6 along BB in FIG.
The non-adhesive part 6 is provided with a thread rubber 8 as an elastic member at the tip of the folded part 4 along the longitudinal direction of the folded part 4, and a pocket-shaped space ( Pocket P) is formed.

  The non-adhesive portion 6 is provided with a second absorber 11 between the top sheet 2 and the back sheet 3. In addition, the non-adhesive portion 6 is provided with a slit 9 at the tip of the folded portion 4 along the width direction of the folded portion 4 (direction perpendicular to the longitudinal direction of the folded portion 4). When the pet urinates in the vicinity of the folded portion 4 of the pet absorbent sheet 1, the urine enters the pocket P formed by the non-adhesive portion 6 and is absorbed by the second absorbent body 11.

  FIG. 3 is a schematic view of the pet absorbent sheet 1. However, FIG. 3 is a view showing a state in which the bonding portion 5 forming the wall W and the non-bonding portion 6 forming the pocket P are spread outward. That is, the outermost periphery of the pet absorbent sheet 1 shown in FIG. 3 corresponds to the upper part of the wall W shown in FIG. 2A and the upper part of the bulge of the pocket P shown in FIG.

  According to the pet absorbent sheet 1 in the first embodiment, the wall W that stops urine is formed by the adhesive portion 5 and the pocket P that captures urine is formed by the non-adhesive portion 6. Even when urine is discharged at the end of the urine, leakage of urine from the end of the sheet can be prevented. Even if urine flows laterally along the wall W, the urine can be captured by the pocket P.

  Moreover, the urine which entered can be absorbed firmly by providing the 2nd absorber 11 in the non-adhesion part 6. FIG. Furthermore, by providing the slit 9 at the tip of the folded portion 4 in the non-adhesive portion 6, urine can easily enter the non-adhesive portion 6. Therefore, it is possible to prevent urine from overflowing and leaking.

  In the first embodiment, the case where one slit 9 is provided at the tip of the folded portion 4 of the non-bonding portion 6 has been described as an example, but each non-bonding portion 6 has two or more slits. It may be provided.

  In the first embodiment, the case where the second absorbent body 11 is separate from the absorbent body 10 has been described as an example. However, the second absorbent body 11 and the absorbent body 10 are integrated. It may be.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
4A is a cross-sectional view of the adhesive portion 5a of the pet absorbent sheet 20 in the second embodiment, and FIG. 4B is a cross-sectional view of the non-adhesive portion 6a of the pet absorbent sheet 20. FIG.

  The pet absorbent sheet 20 is different from the pet absorbent sheet 1 in the first embodiment in the shapes of the bonding part 5a and the non-bonding part 6a, but the other configurations are the same as those of the pet absorbent sheet 1. Therefore, about the corresponding structure, the same code | symbol as the absorbent sheet 1 for pets is used, and description is abbreviate | omitted.

  As shown in FIGS. 4A and 4B, the folded portion 4 of the pet absorbent sheet 20 is folded back inward in the width direction of the folded portion 4 at the first folding start point 21, and is folded at the second folding start point 22. The part 4 is folded outward in the width direction. That is, the folded portion 4 of the pet absorbent sheet 20 is Z-folded.

  As shown in FIG. 4A, in the bonding portion 5 a, the opposed surfaces are bonded to each other by being folded at the first folding start point 21. Specifically, the top sheets 2 folded at the first folding start point 21 are bonded together. Further, a thread rubber 23 is provided at the tip of the folded part 4 along the longitudinal direction of the folded part 4 in the adhesive part 5a, and the tip of the folded part 4 stands up by the contraction force of the thread rubber 23. A wall W is formed.

  As shown in FIG. 4B, in the non-bonding portion 6 a, the opposed surfaces facing each other by being folded at the first folding start point 21 and the second folding starting point 22 are not bonded to each other. In the non-bonding portion 6a, thread rubbers 24, 25, and 26 are provided along the longitudinal direction of the folded portion 4 at the first folded starting point 21, the second folded starting point 22, and the tip of the folded portion 4, respectively. . Further, second absorbent bodies 27 and 28 are provided between the top sheet 2 and the back sheet 3 in the non-bonding portion 6a.

  In addition, in the edge part of each rectangular side of the absorbent sheet 20 for pets, between the surface between the 1st folding | turning start point 21 and the 2nd folding | turning starting point 22, and between the 2nd folding | turning starting point 22 and the front-end | tip of the folding | turning part 4 The surface is bonded.

  According to the pet absorbent sheet of the second embodiment, by making the folded-back portion 4 Z-folded, the entrance of the pocket P is more likely to rise and urine can be easily captured.

  In the second embodiment, the case where the bonding portion 5a and the non-bonding portion 6a are folded is described as being Z-folded (double-folded). However, the number of bellows folds is not limited to Z-folding.

  Moreover, in 2nd Embodiment, although the case where the 2nd absorbers 27 and 28 were a different body from the absorber 10 was demonstrated as an example, the 2nd absorbers 27 and 28, the absorber 10, and May be integrated.

[Third Embodiment]
Next, a third embodiment of the present invention will be described.
FIG. 5 is a bottom view of the pet absorbent sheet 30 according to the third embodiment.
Reinforcing materials 31, 32, 33, and 34 are provided on the bottom surface of the pet absorbent sheet 30. As the reinforcing members 31, 32, 33, and 34, for example, materials that are hard and hardly deformed, such as plastic sheets, are used.

  The pet absorbent sheet 30 according to the third embodiment is different from the pet absorbent sheet 1 according to the first embodiment in that reinforcing materials 31, 32, 33, and 34 are provided. Since the configuration is the same as that of the pet absorbent sheet 1, the corresponding components are denoted by the same reference numerals as those of the pet absorbent sheet 1 and description thereof is omitted.

  The reinforcing members 31 and 32 prevent the pet absorbent sheet 30 from bending in the X direction shown in FIG. 5, and the reinforcing members 33 and 34 curve the pet absorbent sheet 30 in the Y direction shown in FIG. To prevent.

  According to the pet absorbent sheet 30 in the third embodiment, the reinforcing members 31, 32, 33, and 34 are provided on the bottom surface of the pet absorbent sheet 30, so that the pet absorbent sheet 30 is provided on the bonding portion 5 and the non-bonding portion 6. It is possible to prevent the sheet from being bent by the contraction force of the rubber threads 7 and 8 and to use the sheet in a flat state.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.
FIG. 6 is a bottom view of the pet absorbent sheet 40 according to the fourth embodiment.
Adhesive materials 41, 42, 43, 44 are provided on the bottom surface of the pet absorbent sheet 40. As the adhesive materials 41, 42, 43, 44, an adhesive tape, a seal, or the like is used.

  The pet absorbent sheet 40 in the fourth embodiment is different from the pet absorbent sheet 1 in the first embodiment in that adhesive materials 41, 42, 43, and 44 are provided. Since the configuration is the same as that of the pet absorbent sheet 1, the corresponding components are denoted by the same reference numerals as those of the pet absorbent sheet 1 and description thereof is omitted.

  When using the pet absorbent sheet 40, the pet absorbent sheet 40 is fixed to the floor on which the pet absorbent sheet 40 is installed with adhesive materials 41, 42, 43, 44.

  According to the pet absorbent sheet 40 in the fourth embodiment, the adhesive portions 41, 42, 43, 44 are provided on the bottom surface of the pet absorbent sheet 40, thereby providing the adhesive portion 5 and the non-adhesive portion 6. It is possible to prevent the sheet from being bent by the contraction force of the rubber threads 7 and 8 and to use the sheet in a flat state.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described.
FIG. 7 is a schematic diagram of the pet absorbent sheet 50 according to the fifth embodiment.

  The pet absorbent sheet 50 in the fifth embodiment is different from the pet absorbent sheet 1 in the first embodiment in that the perforations 51, 52, 53, 54 are provided. Since the configuration is the same as that of the pet absorbent sheet 1, the corresponding components are denoted by the same reference numerals as those of the pet absorbent sheet 1 and description thereof is omitted.

FIG. 7 is a view showing a state in which the bonded portion 5 and the non-bonded portion 6 are spread outward as in FIG.
The pet absorbent sheet 50 has perforations 51, 52, 53, 53 for separating the folded portion 4 along the longitudinal direction of the folded portion 4 closer to the center side of the pet absorbent sheet 50 than the folded portion 4. 54 is provided.

The pet absorbent sheet 50 may be used as a single sheet, but a plurality of sheets can be used in combination depending on the size of the pet.
For example, for each of the two pet absorbent sheets 50, the folded portion 4 is cut off at the position of the perforation 51 or the perforated line 53, and as shown in FIG. The adhesive sheets 50 can be stacked and combined.
Further, three or more pet absorbent sheets 50 may be used in combination.

  According to the absorbent sheet for pets 50 in the fifth embodiment, by providing the perforations 51, 52, 53, 54, the folded-back portion 4 can be cut off, and therefore a plurality of absorbent sheets for pets 50 are provided. Combinations, sizes and shapes can be changed and used.

  In addition, the description in each said embodiment is an example of the absorbent sheet for pets concerning this invention, and is not limited to this. The detailed configuration of each part constituting the pet absorbent sheet can be changed as appropriate without departing from the spirit of the present invention.

  For example, in each of the above-described embodiments, the case where the folded portion 4 is configured by the top sheet 2 and the back sheet 3 has been described as an example. However, the folded portion 4 may have a structure that prevents urine from leaking outside. What is necessary is just to comprise only the back surface sheet 3.

  Moreover, although the said each embodiment demonstrated the case where the surface sheet 2 and the back surface sheet 3 made the part which has spread outside the absorber 10 into the folding | returning part 4, the folding | returning part 4 is an absorbent sheet for pets. It may be provided as a separate body at the periphery. In that case, you may use as the folding | returning part 4 what was contracted with the expansion-contraction member for the thing longer than the periphery of the pet absorbent sheet. In this case, the wall W formed by the bonded portion 5 and the pocket P formed by the non-bonded portion 6 are more likely to stand up.

  Each embodiment may be combined with the characteristic configuration of one or more other embodiments.

DESCRIPTION OF SYMBOLS 1 Absorbent sheet for pets 2 Top sheet 3 Back sheet 4 Folded part 5 Adhesive part 5a Adhesive part 6 Non-adhesive part 6a Non-adhesive part 7 Rubber thread (elastic member)
8 Rubber thread (elastic member)
9 Slit 10 Absorber 11 Second Absorber 20 Pet Absorbent Sheet 21 First Folding Start Point 22 Second Folding Start Point 23 Thread Rubber (Expandable Member)
24, 25, 26 Rubber thread (expandable member)
27, 28 Second absorbent body 30 Absorbent sheet for pet 31, 32, 33, 34 Reinforcing material 40 Absorbent sheet for pet 41, 42, 43, 44 Adhesive material 50 Absorbent sheet for pet 51, 52, 53, 54 Perforation

Claims (6)

In an absorbent sheet for pets having a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the surface sheet and the back sheet,
A folded portion in which the peripheral edge of the pet absorbent sheet is folded back to the surface sheet;
An adhesive part in which the opposing surfaces of the folded part are bonded to each other;
A non-adhesive portion where the opposing surfaces of the folded portion are not bonded to each other;
Have
An absorptive sheet for pets, wherein stretchable members are provided along the longitudinal direction of the folded portion for each of the bonded portion and the non-bonded portion. The adhesive member is provided with the elastic member along the longitudinal direction of the folded portion at the folding start point of the folded portion,
The absorbent sheet for pets according to claim 1, wherein the non-adhesive portion is provided with the stretchable member along the longitudinal direction of the folded portion at the tip of the folded portion.   The absorbent sheet for pets according to claim 1, wherein the non-adhesive portion is provided with a second absorbent body.   The absorbent sheet for pets according to claim 3, wherein the non-adhesive portion is provided with a slit along the width direction of the folded portion at the tip of the folded portion.   The absorbent sheet for pets according to any one of claims 1 to 4, wherein a reinforcing material or an adhesive material is provided on the bottom surface of the absorbent sheet for pets.   The perforation for cutting off the said folding | turning part is provided in the center side of the said absorbent sheet for pets rather than the said folding | turning part along the longitudinal direction of the said folding | turning part. The absorbent sheet for pets as described in any one of Claims.

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