Absorbent articles for pets

Abstract

To provide an absorbent article for pets, capable of corresponding to pets having waists and leg peripheries with various sizes.SOLUTION: An absorbent article for pets comprises a liquid permeable top sheet, an absorbent pad having an absorber containing a highly absorbent polymer, a liquid impermeable back sheet, and an exterior body in this order, and has a back side part, a crotch part, and a ventral part. The absorbent article for pets is such that a hole for a tail is disposed in a central part in the width direction in the back side part; a pair of fastening tapes are disposed in both ends in the width direction in the ventral part; a fixing area for forming a trunk opening part by locking the fastening tapes is disposed in a central part in the width direction at a non-skin contact surface side in the back side part; and perforations orthogonal to a linear line contacting circular arc parts are disposed in each of a pair of substantially circular arc areas for forming a leg opening part in the ventral part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an absorbent article for pets having perforations. [Background technology]

[0002] Known articles for disposing of waste such as urine excreted by pets (companion animals) such as dogs and cats include diaper-type absorbent articles for pets that are worn on the pet's hind legs and belt-shaped absorbent articles for pets that are wrapped around the pet's torso.

[0003] However, since there are many different breeds of pets and each pet has a different physique, a single size absorbent article may not fit around the torso or legs, resulting in problems such as urinary leakage, reduced comfort for the pet wearing the article, and an adverse appearance. There are absorbent articles on the market in a variety of sizes to accommodate differences in breeds and individual body sizes, but these sizes do not necessarily fit consumers' pets.

[0004] As a prior art of absorbent articles for solving such problems, for example, Patent Document 1 discloses a disposable pet diaper comprising a rear waist region, a ventral waist region, a crotch region, a flap portion provided in the ventral waist region and having an end in the rear direction, a diaper longitudinal centerline, a diaper center point, a tail insertion opening, an absorbent core, a fastening portion disposed in the flap portion, a fastening portion midpoint, a fastening region receiving the fastening portion, and a shortest straight line point which is a point on the diaper longitudinal centerline in the shortest straight line distance from the fastening portion midpoint to the diaper longitudinal centerline via the rear end of the flap portion, and the shortest straight line point is located on the ventral waist region side of the diaper center point. The invention proposes to provide a disposable pet diaper that fits well around the legs of a pet. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5829599 Summary of the Invention [Problem to be solved by the invention]

[0006] However, even an absorbent article like that disclosed in Patent Document 1 cannot accommodate the leg circumferences of all the various pet breeds, and has not provided a fundamental solution.

[0007] The present invention has been made in consideration of the above circumstances, and its object is to provide an absorbent article for pets that can accommodate pets with various waist and leg sizes. [Means for solving the problem]

[0008] After extensive research, the inventors discovered that by providing perforations in each of a pair of approximately arc-shaped regions in the ventral side for forming leg openings, which perforations are perpendicular to a straight line tangent to the arc portions of said regions, it is possible to create an absorbent article for pets that can accommodate pets with various waist and leg sizes, thereby solving the above-mentioned problems and thereby completing the present invention. Specifically, the present invention provides the following:

[0009] (1) A first aspect of the present invention is an absorbent article for pets comprising, in this order, a liquid-permeable top sheet, an absorbent pad having an absorbent body containing a highly absorbent polymer, a liquid-impermeable back sheet, and an outer body, and having a dorsal portion, a crotch portion, and a ventral portion, wherein a hole for a tail is provided in the widthwise central portion of the dorsal portion, a pair of fastening tapes are provided at both ends in the widthwise direction of the ventral portion, a fastening region for fastening the fastening tapes to form a torso opening is provided in the widthwise central portion of the dorsal portion on the non-skin-contacting surface side, and each of a pair of approximately arc-shaped regions for forming leg openings in the ventral portion is provided with perforations perpendicular to a straight line tangent to the arc portions of the regions. (2) A second aspect of the present invention is an absorbent article for pets as described in (1), characterized in that the bond rate of the perforations is 15% or more and 60% or less. (3) A third aspect of the present invention is an absorbent article for pets as described in (1) or (2), characterized in that the angle between a straight line extending from both ends of the perforation and a straight line parallel to the width direction of the absorbent article for pets is greater than or equal to 15° and less than or equal to 75°. Effect of the Invention

[0010] According to the present invention, it is possible to provide an absorbent article for pets that can accommodate pets having various sizes of waist circumference and leg circumference. [Brief description of the drawings]

[0011] [Figure 1] 1 is a plan view of an absorbent article for pets according to the present invention. [Diagram 2] FIG. 2 is an enlarged view of the perforated portion of FIG. [Diagram 3] 2 is a cross-sectional view taken along line XX' in FIG. [Figure 4] 2 is a cross-sectional view taken along line YY' in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, the form for carrying out the present invention (hereinafter, the embodiment) will be described in detail with reference to the drawings. However, these are presented for the purpose of illustration only and are not intended to limit the present invention.

[0013] In the description of this specification, the longitudinal direction of the absorbent article for pets 1 refers to the direction from the front to the back of the pet when the absorbent article for pets 1 is worn, and is the direction indicated by the symbol X in the drawings. The width direction of the absorbent article for pets 1 refers to the direction horizontal to or perpendicular to the longitudinal direction, and is the direction indicated by the symbol Y in the drawings. Furthermore, the skin contact surface refers to the surface of each of the front and back surfaces of the absorbent article for pets 1 that faces the skin of the pet when worn, and the non-skin contact surface refers to the surface of each of the front and back surfaces of the absorbent article for pets 1 that faces the opposite side to the skin of the pet when worn. An example of the absorbent article for pets 1 is a disposable diaper for pets. In the present invention, the term "pet" refers to so-called companion animals, and the pets are preferably dogs and cats, and more preferably dogs. The breed of the pet is not particularly limited, and the size (body size) of the pet is not particularly limited.

[0014] <Absorbent articles for pets> Fig. 1 is a plan view of a pet absorbent article 1 according to an embodiment of the present invention, as viewed from the top sheet 10 side. Fig. 3 and Fig. 4 are cross-sectional views taken along lines X-X' and Y-Y' in Fig. 1, respectively. The pet absorbent article 1 of the present invention comprises, in this order, a liquid-permeable top sheet 10, an absorbent pad 20 having an absorbent body 21 containing a highly absorbent polymer, a liquid-impermeable back sheet 30, and an exterior body 40, and has a back side portion 1a, a crotch portion 1b, and a ventral side portion 1c.

[0015] <Top sheet> The top sheet 10 may be formed from a substrate having liquid permeability that allows urine to move to the absorbent pad 20, and may be, for example, a known hydrophilic nonwoven fabric such as a thermal bonded nonwoven fabric or a spunbonded nonwoven fabric. The top sheet 10 may be embossed or perforated on the surface in order to improve liquid permeability. As a method for carrying out such embossing or perforation, any known method may be used without limitation. In order to reduce irritation to the pet's skin, the top sheet 10 may contain lotion, antioxidant, anti-inflammatory component, pH adjuster, antibacterial agent, moisturizer, deodorant, fragrance, etc. From the viewpoints of strength, processability, and liquid return, the basis weight of the top sheet 10 is 5 g / m 2 More than 50g / m 2 It is preferable that the thickness is less than 15 g / m 2 More than 30g / m 2 It is more preferable that the top sheet 10 has the following shape: There are no particular limitations on the shape of the top sheet 10, so long as it has a shape that covers the absorbent pad 20 and is necessary to guide bodily fluids to the absorbent pad 20 without leakage.

[0016] <Absorbent pad> In the pet absorbent article 1 of the present invention, the size of the absorbent pad 20 is not particularly limited because the pet absorbent article 1 can accommodate various sizes of pets, but the longitudinal dimension is preferably 250 mm to 600 mm, more preferably 300 mm to 500 mm. Also, the width dimension of the absorbent pad 20 is preferably 20% to 40% of the longitudinal dimension.

[0017] (Absorbent Fiber) The absorbent body 21 of the absorbent pad 20 contains a superabsorbent polymer (SAP), and preferably further contains absorbent fibers as a base material. The absorbent fibers are not particularly limited as long as they are generally used in absorbent articles for pets, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, hydrophilic nonwoven fabric, etc. Among these, it is preferable to use fluff pulp from the viewpoint of absorbency. Examples of fluff pulp include wood pulp (for example, coniferous bleached kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fibers, resin fibers, non-wood pulp, etc. that have been defibrated into a cotton-like state. When fluff pulp is used as the absorbent fiber as the base material for the absorbent body 21, the basis weight of the absorbent fiber is not particularly limited, but is preferably 300 g / m 2 More than 1500g / m 2 It is preferable that the thickness is less than 450 g / m 2 More than 1200g / m 2 It is more preferable that the thickness is less than 1 mm. This allows the material to absorb more bodily fluids (urine and feces) without impairing the feel on the pet's skin.

[0018] (Superabsorbent polymer) The highly absorbent polymer of the absorbent body 21 is not particularly limited as long as it can absorb body fluids and prevent backflow, and can be made of materials such as sodium polyacrylate, polyaspartate, (starch-acrylic acid) graft copolymer, (acrylic acid-vinyl alcohol) copolymer, (isobutylene-maleic anhydride) copolymer, and saponification products thereof. Among these, sodium polyacrylate is preferred from the viewpoint of absorption per weight. Furthermore, in the absorbent body 21, the ratio of the weight of the superabsorbent polymer to the total weight of the absorbent body 21, that is, weight of superabsorbent polymer / total weight of absorbent body 21 × 100 (%), is preferably 15% or more, and more preferably 20% or more and 50% or less.

[0019] In the absorbent body 21, the absorbent fibers and SAP may be in the form of a mixture of SAP particles in absorbent fibers, or may be in the form of a SAP sheet in which SAP particles are fixed between absorbent fibers. In order to prevent leakage of the SAP particles and to stabilize the shape of the absorbent body 21, a carrier sheet 22 may be provided to wrap the absorbent body 21, as shown in Figures 3 and 4. The base material of the carrier sheet 22 may be any material that has hydrophilicity, and examples of the base material include hydrophilic nonwoven fabrics such as tissue, absorbent paper, and airlaid nonwoven fabrics. In addition, when a plurality of carrier sheets 22 are provided as shown in Figures 3 and 4, the base materials of the plurality of carrier sheets 22 may be the same or different.

[0020] <Back sheet> The back sheet 30 may be formed using a liquid-impermeable substrate so that the body fluids held by the absorbent pad 20 do not wet the pet's skin or fur, and a plastic film such as a liquid-impermeable polyethylene film, which may be breathable or non-breathable, may be used.

[0021] The basis weight of the back sheet 30 is not particularly limited, but is preferably 10 g / m 2 More than 30g / m 2 It is preferable that the thickness is less than 15 g / m 2 More than 20g / m 2 It is more preferable that the following is satisfied. In order to provide breathability to the back sheet 30, for example, a filler may be blended into the resin film of the base material, or the back sheet 30 may be embossed. An example of the filler is calcium carbonate, and the blending method may be any known method without any restrictions.

[0022] <Exterior body> As shown in Figs. 3 and 4, the exterior body 40 in the absorbent article for pet 1 of the present invention is disposed under the liquid-impermeable back sheet 30 (on the side not in contact with the skin). Additionally, a tail hole 70 for passing a pet's tail through is provided in the widthwise center of the back side portion 1a. The diameter of the tail hole 70 is not particularly limited, but is preferably 20 mm to 40 mm. The tail hole 70 may be provided by completely cutting the top sheet 10, the back sheet 30, and the exterior body 40 into a substantially circular shape, but it may also be provided with a so-called flap structure in which a portion of the exterior body 40 is left uncut and opens when the pet's tail is passed through and closes when the tail is removed.

[0023] <Fastening tape and fastening area> A pair of fastening tapes 50 are provided at both ends in the width direction of the abdominal portion 1c. A fastening means made of a hook member constituting a hook-and-loop fastener for fastening the back portion 1a and the abdominal portion 1c is provided on the skin contact surface of the fastening tape 50, and it is preferable that a tab is provided at the tip of each fastening tape 50 on the free end side of the fastening means (not shown). Meanwhile, a fastening region 60 for fastening the fastening tape 50 to form a body opening is provided in the widthwise central portion of the non-skin contacting surface side of the back portion 1a. The fastening region 60 is provided with a target tape formed of a loop member constituting a hook-and-loop fastener, and it is preferable that when the pet absorbent article 1 is worn on a pet, the fastening means is fixed to the target tape which is a loop member. The hook member refers to a member consisting of a hook-shaped protrusion among the members constituting the hook-and-loop fastener, and the loop member refers to a member that is paired with the hook member and is densely raised in a loop shape. The hook-and-loop fastener is composed of a pair of this hook member and loop member. When wearing the absorbent article for pets 1, the pet's tail is passed through the tail hole 70, and with the dorsal part 1a against the pet's back, the abdominal part 1c is brought to the pet's abdominal side, and the fastening tape 50 is fastened to the fastening region 60 (target tape), so that the pet can wear it. In addition, the width dimension of the fastening region 60 is preferably 30 mm or more and 60 mm or less.

[0024] <Perforation> As shown in the enlarged view of Fig. 2, the perforations 80 are provided in each of a pair of substantially arc-shaped regions for forming leg openings in the abdominal portion 1c, so as to be perpendicular to a straight line L tangent to the arc portions of the regions. By providing the perforations 80 in these regions, the size of the leg openings can be adjusted, and the absorbent article for pet 1 can be made to fit well on pets with thin waists and pets with thick legs. In addition, since the perforations 80 are perforations rather than slits, the length of the perforations 80 can be adjusted according to the size and shape of the pet, and further, the absorbent article for pet 1 is improved in terms of preventing urine leakage and preventing it from coming off, and the absorbent article for pet 1 is excellent in terms of comfort for the pet and looks good.

[0025] The bond ratio of perforation 80 ((length of joint of perforation 80 / (length of joint of perforation 80+length of cut of perforation 80))×100(%)) is preferably 15% or more and 60% or less, and more preferably 20% or more and 50% or less. If the bond ratio is less than 15%, perforation 80 will often break unintentionally, and if it exceeds 60%, perforation 80 will be difficult to break. Furthermore, the angle between a straight line extending from both ends of the perforation 80 and a straight line parallel to the width direction of the pet absorbent article 1 (i.e., a straight line parallel to the Y-axis) is preferably 15° to 75°, and more preferably 30° to 60°. If the angle is less than 15° or exceeds 75°, the size of the leg openings will not increase even if the perforation 80 is cut, and the article cannot accommodate pets with thin waists or thick legs. Furthermore, the length of each of the perforations 80 is preferably 10% to 30%, and more preferably 15% to 25%, of the difference between the width (length parallel to the Y-axis) of the exterior body 40 and the width (length parallel to the Y-axis) of the absorbent pad 20. Although the perforations 80 are preferably straight lines as shown in Figures 1 and 2, they may be curved lines, or multiple perforations may be provided in a substantially arc-shaped region.

[0026] Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is clear to those skilled in the art that various modifications and improvements can be made to the above embodiments. In addition, it is clear from the description of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention. [Explanation of symbols]

[0027] 1. Absorbent products for pets 10 Top sheet 20 Absorbent Pads 21 Absorbent 22 Career Sheet 30 Back Seat 40 Exterior body 50 Fastening Tape 60 Attachment area 70 Tail hole 80 Perforations

Claims

1. An absorbent article for pets comprising a liquid-permeable top sheet, an absorbent pad having an absorbent body containing a highly absorbent polymer, a liquid-impermeable back sheet, and an exterior body in this order, and having a back side portion, a crotch portion, and a ventral side portion, A hole for a tail is provided in the widthwise center of the back side portion, A pair of fastening tapes is provided at both ends in the width direction of the abdominal side portion, A fastening region for fastening the fastening tape to form a torso opening is provided at a widthwise central portion of the back portion on the non-skin contact surface side, An absorbent article for pets, characterized in that each of a pair of approximately arc-shaped regions in the ventral portion for forming leg openings is provided with perforations perpendicular to a straight line tangent to the arc portions of the regions.

2. 2. The absorbent article for pets according to claim 1, wherein a bond rate of the perforations is 15% or more and 60% or less.

3. The absorbent article for pets according to claim 1 or 2, characterized in that the angle between a straight line extending from both ends of the perforation and a straight line parallel to the width direction of the absorbent article for pets is greater than or equal to 15° and less than or equal to 75°.

Images