Pet absorbent products

Abstract

To improve the fit of absorbent products for pets. [Solution] An absorbent article for pets according to one embodiment includes a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent disposed between the surface sheet and the back sheet, and comprises a main body having a ventral region that covers the pet's abdomen when worn, a dorsal region that covers the pet's back when worn, and a crotch region disposed between the ventral region and the dorsal region in the longitudinal direction, a target portion provided on the non-skin side of the dorsal region of the main body, and a pair of fastening tabs provided on the ventral region of the main body that engage with the target portion, wherein the main body includes a pair of dorsal flap portions that protrude outward in the width direction perpendicular to the longitudinal direction in the dorsal region, and at least a portion of the target portion extends in the width direction between the side edges of the pair of dorsal flap portions in the width direction so as to traverse the entire area of ​​the dorsal region in the width direction.

Description

Technical Field

[0001] The present disclosure relates to absorbent articles for pets.

Background Art

[0002] Patent Document 1 describes an absorbent article for pets, which includes a ventral region, a dorsal region, an intermediate region located between the ventral region and the dorsal region, a liquid-permeable inner layer sheet, a liquid-impermeable outer layer sheet, and an absorbent core located between the inner layer sheet and the outer layer sheet. The absorbent article is provided with fastening tabs that extend outward in the lateral direction from both side edges of the ventral region. When the absorbent article is worn, the first fastening element of the pair of fastening tabs engages with the second fastening element of the receiving portion located on the outer surface of the dorsal region. Dorsal side flaps extending outward from both side edges of the inner layer sheet are formed in the dorsal region of the absorbent article.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The absorbent article as described above is worn by arranging the dorsal region and the ventral region of the absorbent article on the back and abdomen of the pet respectively, and engaging the first fastening element of the fastening tab with the second fastening element of the receiving portion. When wearing the absorbent article as described above, the dorsal side flap may be inadvertently folded back to the skin side of the pet and enter between the pet and the inner layer sheet of the absorbent article. When the dorsal side flap enters the inside of the absorbent article, a gap may occur between the body of the pet and the absorbent article, and the fit of the absorbent article may be impaired.

[0005] Therefore, this disclosure aims to improve the fit of absorbent articles for pets. [Means for solving the problem]

[0006] An absorbent article for pets according to one embodiment includes a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent material disposed between the surface sheet and the back sheet, and comprises a main body having a ventral region that covers the pet's abdomen when worn, a dorsal region that covers the pet's back when worn, and a crotch region disposed between the ventral region and the dorsal region in the longitudinal direction, a target portion provided on the non-skin side of the dorsal region of the main body, and a pair of fastening tabs provided on the ventral region of the main body that engage with the target portion, wherein the main body includes a pair of dorsal flap portions that protrude outward in the width direction perpendicular to the longitudinal direction in the dorsal region, and at least a portion of the target portion extends in the width direction between the side edges of the pair of dorsal flap portions in the width direction so as to traverse the entire area of ​​the dorsal region in the width direction.

[0007] In the absorbent pet article according to the above embodiment, at least a portion of the target area extends in the width direction between the side edges of the pair of dorsal flap portions in the width direction so as to traverse the entire dorsal region in the width direction, thereby increasing the rigidity of the pair of dorsal flap portions. This prevents the pair of dorsal flap portions from entering the inside of the absorbent pet article when it is attached, and as a result, prevents gaps from forming between the pet's body and the absorbent pet article. Therefore, the fit of the absorbent pet article can be improved.

[0008] In one embodiment, when the direction from the dorsal region to the ventral region is defined as the ventral side, and the direction from the ventral region to the dorsal region is defined as the dorsal side, the target portion includes a ventral edge positioned on the ventral side, a dorsal edge positioned on the dorsal side, and a pair of side edges connecting both ends of the ventral edge and both ends of the dorsal edge to each other. Each of the pair of side edges of the target portion may include a straight portion connected to the dorsal edge and extending linearly in the longitudinal direction, and a curved portion extending in a curved manner between the ventral edge and the straight portion. In this case, the fit of the absorbent article for pets is improved by positioning the curved portion along the body of the pet.

[0009] In one embodiment, the length of the straight section may be 2 / 3 or more of the width of each of the pair of fastening tabs in the longitudinal direction. In this case, the area of ​​the region between the straight sections in the target section can be increased, making it easier to engage the pair of fastening tabs with the target section. Therefore, the pet absorbent article can be fitted to the pet according to the size of the pet's body, and as a result, the fit of the pet absorbent article can be further improved.

[0010] In one embodiment, the curved portion extends between a starting point connected to the ventral edge and an ending point connected to the straight portion, and the angle between the straight portion and the straight line connecting the starting and ending points of the curved portion may be 95° or more. In this case, the area of ​​the region between the curved portions within the target portion can be increased, making it easier to engage the pair of fastening tabs with the target portion. Therefore, the pet absorbent article can be fitted to the pet according to the size of the pet's body, and as a result, the fit of the pet absorbent article can be further improved.

[0011] In one embodiment, the length of the curved portion may be longer than the length of the straight portion. In this case, because the length of the curved portion is relatively long, it can be positioned to conform to the pet's body. Therefore, the fit of the absorbent pet product can be further improved.

[0012] In one embodiment, the pair of dorsal flap portions include a pair of side edges in the width direction, and each of the side edges of the pair of dorsal flap portions has a curved portion that curves outward in the width direction as it approaches the dorsal side, and the curved portion of the target portion may extend so as to overlap at least a part of the curved portion of the pair of dorsal flap portions. In this case, the curved portion of the dorsal flap portion can be positioned along the body of the pet, thereby improving the fit of the absorbent pet product. In addition, when attaching the absorbent pet product to the pet, the curved portion of the target portion catches on the pet's hind legs, making it less likely for the absorbent pet product to shift. Therefore, the absorbent pet product can be easily attached to the pet.

[0013] In one embodiment, the straight portion of the target section may be positioned inward in the width direction from the side edges of the pair of dorsal flap sections. In this case, the rigidity of the portion between the straight portion of the target section and the side edges of the dorsal flap sections becomes relatively small, allowing the dorsal flap sections to conform more easily to the pet's body. Thus, the fit of the pet absorbent article can be further improved.

[0014] In one embodiment, the absorbent material is provided on both outer sides of the main body in the width direction and further comprises a pair of elastic members that are expandable and contractible in the longitudinal direction, and the target portion may traverse the pair of elastic members. In this case, when the pet absorbent material is attached to a pet, the pair of elastic members contract in the longitudinal direction, causing the main body to fit the pet's body. In addition, the relatively large width of the target portion makes it easy to engage the fastening tab with the target portion. Therefore, the pet absorbent material can be attached to the pet according to the size of the pet's body, and as a result, the fit of the pet absorbent material can be further improved.

[0015] In one embodiment, the target portion may be made of a nonwoven fabric. In this case, the contraction of a pair of elastic members causes wrinkles to form in the target portion, thereby increasing the engagement force between the fastening tab and the target portion. Therefore, it is possible to prevent the absorbent pet material from shifting.

[0016] In one embodiment, the backing sheet includes a water-impermeable backing film and a backing nonwoven fabric positioned on the non-skin side of the backing film, and both ends of the backing film in the width direction may be exposed from both side edges of the main body in the width direction over the entire crotch area. In this case, the rigidity of both side edges of the main body in the width direction can be increased, making it less likely for both side edges of the main body to curl up when wearing an absorbent pet product.

[0017] In one embodiment, the backing sheet includes a water-impermeable backing film and a backing nonwoven fabric positioned on the non-skin side of the backing film, and the target portion may extend outward in the width direction from the backing film. In this case, the relatively long length of the target portion makes it easier to engage the fastening tab with the target portion.

[0018] In one embodiment, an adhesive portion is provided on the skin-facing surface of at least one of the pair of fastening tabs and the pair of flap portions. The adhesive portion may be located on a straight line connecting the pair of fastening tabs, or in the region between the straight line connecting the pair of fastening tabs and the center line of the main body in the longitudinal direction. In this case, when the pair of fastening tabs engage with the target portion, the adhesive portion comes into contact with the dorsal region or the pet's body from the non-skin-facing side, so the adhesive force of the adhesive portion can suppress the displacement of the absorbent pet article. [Effects of the Invention]

[0019] According to various aspects of the present invention, the objective is to improve the fit of absorbent articles for pets. [Brief explanation of the drawing]

[0020] [Figure 1] This is a plan view of an absorbent pet article according to one embodiment, as seen from the skin-facing side. [Figure 2] This is a plan view of an absorbent pet product, seen from the non-skin side. [Figure 3]This is a cross-sectional view of the absorbent article for pets along the line A-A in FIG. 1. [Figure 4] (a) is a diagram for explaining the procedure of attaching the absorbent article for pets to a pet, and (b) is a diagram showing the state where the absorbent article for pets is attached to the pet.

Mode for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted. The drawings may be drawn with some parts simplified or exaggerated for ease of understanding, and the dimensional ratios are not limited to those described in the drawings.

[0022] FIG. 1 is a plan view of the absorbent article 1 for pets (hereinafter simply referred to as "absorbent article 1") according to an embodiment as viewed from the skin side Z1. FIG. 2 is a plan view of the absorbent article 1 as viewed from the non-skin side Z2. FIG. 3 is a cross-sectional view of the absorbent article 1 along the line A-A shown in FIG. 1. In FIGS. 1 and 2, the absorbent article 1 in the unfolded state where the absorbent article 1 is extended until wrinkles are not formed is shown. In the following description, the positional relationship in the unfolded state will be described unless otherwise specified. The absorbent article 1 shown in FIGS. 1 to 3 is a disposable diaper for pets that absorbs the urine of pets.

[0023] The skin side Z1 is the side that faces the skin surface of the pet when the absorbent article 1 is in a worn state, and the non-skin side Z2 is the side that faces the opposite side of the pet's skin surface when the absorbent article 1 is in a worn state. In the following description, the person who attaches the absorbent article 1 to the pet is referred to as the "user". Typically, the user is the owner of the pet.

[0024] In this specification, "pet" broadly encompasses vertebrates and invertebrates, and typically includes companion animals such as dogs, cats, rabbits, and hamsters. As shown in Figure 1, the absorbent article 1 extends in a width direction X, which is aligned with the circumference of the pet, and in a longitudinal direction Y, which connects the ventral to the dorsal side of the pet. The width direction X and the longitudinal direction Y are perpendicular to each other. The thickness direction Z is perpendicular to the width direction X and the longitudinal direction Y and includes a skin-facing side Z1 that faces the pet's skin when worn, and a non-skin-facing side Z2 that faces away from the pet's skin when worn. As shown in Figures 4(a) and (b), the absorbent article 1 is fitted so as to cover the pet from the ventral side through the crotch to the dorsal side.

[0025] The absorbent article 1 has a main body 2 and a pair of fastening tabs 90. The main body 2 extends in the width direction X and the longitudinal direction Y. The main body 2 has a ventral region 51 that covers the pet's abdomen when worn, a dorsal region 52 that covers the pet's back when worn, and a crotch region 53 located between the ventral region 51 and the dorsal region 52 in the longitudinal direction Y. For example, the ventral region 51, the dorsal region 52, and the crotch region 53 correspond to the regions obtained by dividing the main body 2 into three equal parts in the longitudinal direction Y. In the following description, the direction from the dorsal region 52 toward the ventral region 51 may be referred to as "ventral," and the direction from the ventral region 51 toward the dorsal region 52 may be referred to as "dorsal."

[0026] As shown in Figures 1 to 3, the main body 2 includes a surface sheet 10, a back sheet 20, and an absorbent material 30. The surface sheet 10 forms the surface of the main body 2 that comes into contact with the pet and is positioned on the skin side Z1. The surface sheet 10 is permeable to water, allowing the pet's urine to pass through to the absorbent material 30.

[0027] The backing sheet 20 constitutes the outer surface of the main body 2 when worn and is positioned on the non-skin side Z2. The backing sheet 20 includes a non-permeable backing film 21 and a backing nonwoven fabric 22 positioned on the non-skin side Z2 of the backing film 21. The backing nonwoven fabric 22 constitutes the outermost layer of the absorbent article 1.

[0028] As shown in Figure 2, the width W1 of the backing film 21 in the width direction X is substantially the same as the width of the main body 2 in the width direction X in the crotch area 53. In other words, throughout the entire crotch area 53, the side edges 21S of the backing film 21 in the width direction X are exposed from the side edges 2S of the main body 2 in the width direction X. This increases the rigidity of the side edges 2S of the main body 2 in the width direction X, making it less likely for the side edges 2S of the main body 2 to curl up when worn. In addition, the backing film 21 and the backing nonwoven fabric 22 may be bonded together with a hot melt adhesive at the side edges 2S in the width direction X.

[0029] The absorbent body 30 is positioned between the surface sheet 10 and the back sheet 20. The absorbent body 30 absorbs pet urine. The absorbent body 30 has a substantially rectangular shape extending in the longitudinal direction Y. In one embodiment, the absorbent body 30 includes an absorbent core 31 containing water-absorbent pulp and a superabsorbent polymer (SAP), and a core wrap 32 covering the surface of the absorbent core. As the pulp of the absorbent core 31, for example, chemical pulp, cellulose fibers such as rayon and acetate are used. As the superabsorbent polymer, for example, particulate or fibrous polymers of starch-based, acrylic acid-based, or amino acid-based types are used. Typically, the core wrap 32 is made of a water-permeable material such as tissue or nonwoven fabric. As shown in Figure 3, the core wrap 32 covers the upper and lower surfaces of the absorbent core 31.

[0030] As shown in Figure 1, the main body 2 has a pair of flap portions 40 positioned outside the absorbent body 30 in the width direction X. The pair of flap portions 40 includes a pair of ventral flap portions 41 formed in the ventral region 51 and a pair of dorsal flap portions 42 formed in the dorsal region 52. The pair of ventral flap portions 41 and the pair of dorsal flap portions 42 protrude outward in the width direction X in the ventral region 51 and the dorsal region 52, respectively. As a result of providing the pair of ventral flap portions 41 and the pair of dorsal flap portions 42, the maximum width in the width direction X of the ventral region 51 and the dorsal region 52, respectively, is greater than the maximum width in the width direction X of the crotch region 53. The pair of flap portions 40 define a pair of leg openings 40s for passing the hind legs of a pet through when the absorbent article 1 is attached to the pet.

[0031] The pair of dorsal flap portions 42 include a pair of side edges 42S in the width direction X. Each of the pair of side edges 42S has a curved portion 42Sa. The curved portion 42Sa is curved so as it extends outward in the width direction X toward the dorsal side. The curved portion 42Sa is formed, for example, by cutting the main body portion 2 in a curved shape.

[0032] A pair of fastening tabs 90 extend outward in the width direction X from a pair of ventral flap portions 41. The pair of fastening tabs 90 have a rectangular shape that is long in the width direction X when viewed from the skin side Z1 and are positioned close to the ventral edge 2F in the longitudinal direction Y of the main body portion 2. The pair of fastening tabs 90 extend outward in the width direction X from both side edges 2S of the main body portion 2. Each of the pair of fastening tabs 90 has a base sheet 91 joined to the ventral flap portion 41 and an engaging portion 92 provided on the base sheet 91. The engaging portion 92 is positioned on the skin side Z1 surface of the fastening tab 90. The engaging portion 92 is, for example, a mechanical fastener including a plurality of hooks for engagement and is configured to be joined to a target portion 45 formed on the non-skin side Z2 of the main body portion 2.

[0033] As shown in Figures 1 and 2, the target portion 45 is provided on the non-skin side Z2 of the back region 52 of the main body portion 2. The target portion 45 is made of, for example, a nonwoven fabric. To increase rigidity, the nonwoven fabric constituting the target portion 45 may have irregularities formed on it. In the back region 52, the target portion 45 extends outward in the width direction X from the back film 21.

[0034] The target portion 45 includes a ventral edge 45F positioned on the ventral side, a dorsal edge 45R positioned on the dorsal side, and a pair of side edges 45S connecting both ends 45Fa of the ventral edge 45F and both ends 45Ra of the dorsal edge 45R to each other. Each of the ventral edge 45F and the dorsal edge 45R extends along the width direction X. The width of the ventral edge 45F in the width direction X is narrower than the width of the dorsal edge 45R in the width direction X. In one embodiment, as shown in Figure 2, the minimum width W2 of the target portion 45 in the width direction X (the width of the ventral edge 45F in the width direction X) is greater than the width W1 of the back surface film 21 in the width direction X.

[0035] The side edge 45S includes a straight portion 45Sa and a curved portion 45Sb. The straight portion 45Sa is connected to the back edge 45R and extends linearly in the longitudinal direction Y. In the width direction X, the straight portion 45Sa is positioned inward from the side edges 42S of the pair of back flap portions 42. That is, as viewed from the non-skin side Z2, the straight portion 45Sa is positioned offset from the side edge 42S.

[0036] The curved portion 45Sb extends in a curved manner between the ventral edge 45F and the straight portion 45Sa. Specifically, the curved portion 45Sb extends between a starting point SP connected to the ventral edge 45F and an ending point EP connected to the straight portion 45Sa, and curves outward in the width direction X as it moves toward the dorsal side. The starting point SP and ending point EP are located on the side edges 42S of a pair of dorsal flap portions 42. The angle α between the straight portion 45Sa and the straight line L connecting the starting point SP and ending point EP of the curved portion 45Sb is, for example, 95° or more. The angle α may be 120° or more, or 150° or more. The curved portion 45Sb is formed, for example, by cutting the target portion 45 in a curved shape together with the main body portion 2 when forming the curved portion 42Sa of the main body portion 2.

[0037] The target portion 45 has a portion 45a enclosed by a ventral edge 45F and a curved portion 45Sb. That is, portion 45a is a region located between the curved portions 45Sb of a pair of lateral edges 45S of the target portion 45. Portion 45a is located ventrally to the straight portion 45Sa. Portion 45a of the target portion 45 extends in the width direction X between the lateral edges 42S of a pair of dorsal flap portions 42 in the width direction X, so as to traverse the entire dorsal region 52 in the width direction X. In one embodiment, the curved portion 45Sb of the target portion 45 (the lateral edge of portion 45a) extends so as to overlap a part of the curved portion 42Sa of the dorsal flap portion 42.

[0038] The length L1 of the straight portion 45Sa in the longitudinal direction Y may be 2 / 3 or more of the width W3 of each of the pair of fastening tabs 90 in the longitudinal direction Y. In one embodiment, the width of the engaging portion 92 in the longitudinal direction Y is the same as the width of the fastening tab 90. Therefore, the length L1 of the straight portion 45Sa may be 2 / 3 or more of the width of the engaging portion 92 in the longitudinal direction Y.

[0039] The length L2 of the curved portion 45Sb of the target portion 45 may be longer than the length L1 of the straight portion 45Sa of the target portion 45. The length L2 of the curved portion 45Sb is the length along the side edge 45S from the starting point SP to the ending point EP.

[0040] As shown in Figure 1, a pair of fastening tabs 90 have an adhesive portion 95. The adhesive portion 95 is provided on the skin-side Z1 surface of the base sheet 91 of each fastening tab 90. That is, the adhesive portion 95 is provided on the straight line SL connecting the pair of fastening tabs 90. The adhesive portion 95 has an adhesive strength of 0.10 N / cm or more and 0.55 N / cm or less in the measurement of "180° peel adhesive strength to a test plate" as specified in JIS Z 0237:2009. For example, the adhesive portion 95 is formed by applying an adhesive to the skin-side Z1 surface of the base sheet 91 of the fastening tab 90. Alternatively, the adhesive portion 95 may be formed by attaching a sheet with high adhesiveness, such as rubber or urethane, to the skin-side Z1 surface of the base sheet 91 of the fastening tab 90.

[0041] When the engaging portions 92 of a pair of fastening tabs 90 are engaged with the target portion 45 of the main body 2, the adhesive portion 95 is configured to contact the back region 52 of the main body 2 (for example, the back flap portion 42 or the target portion 45) from the non-skin side Z2. The adhesive portion 95 may also come into contact with the pet's body. The contact of the adhesive portion 95 with the back region 52 of the main body 2 or the pet's body suppresses the displacement of the absorbent article 1 due to its adhesive force. The peel strength of the adhesive portion 95 from the target portion 45 may be lower than the peel strength of the engaging portion 92 of the fastening tab 90 from the target portion 45. Peel strength refers to the force required to pull the engaging portion 92 or the adhesive portion 95 away from the target portion 45. As described above, when a weak force is applied to the absorbent article 1, the adhesive force of the adhesive portion 95 suppresses the displacement of the absorbent article 1. In contrast, the adhesive portion 95 has a relatively weak peel strength, so if a strong force is applied to the absorbent article 1, the adhesive portion 95 will detach from the dorsal region 52 of the main body 2 or from the pet's body, allowing the absorbent article 1 to shift. Therefore, interference with the pet's movement is suppressed. The peel strength of the engaging portion 92 and the adhesive portion 95 can be measured by the <Peel Strength Test> described below.

[0042] <Peel Strength Test> 1. Prepare a first test specimen (a test specimen of the engaging portion 92 or the adhesive portion 95) and a second test specimen (a test specimen of the target portion 45 or the nonwoven fabric 22 on the back). The dimensions of the first and second test specimens shall be the same (for example, 10 mm x 30 mm). 2. With the engagement surfaces of the first and second test specimens facing each other, the first and second test specimens are placed on top of each other, and the first and second test specimens are pressed together with a pressure of 300 mmHg for 1 minute so that they are compressed against each other. 3. By applying cloth tape to the edge corresponding to one common side of each of the first and second test specimens, a gripping portion (cloth tape applied to the first test specimen and cloth tape applied to the second test specimen) is created. 4. The measurement atmosphere is kept constant temperature and humidity (20±2℃, 60±5RH%), and each test specimen is secured by clamping its gripping portion into each of the two chucks of a tensile testing machine (for example, Shimadzu Autograph AG-50-NXplus HS). 5. Set the load on the tensile testing machine to 0 and start the measurement. Specifically, pull the gripping portion of each test specimen in opposite directions at a speed of 100 mm / min along a direction parallel to the opposing direction mentioned above. 6. After the measurement is complete (after the two test pieces have been separated), read the maximum load (N / 100mm) measured during the measurement. 7. Perform the measurements described in steps 1-6 above on multiple sets (e.g., 3 sets) of the first and second test specimens, and obtain the average value of the measurement results from each set (the maximum load obtained in "6.") as the final measurement result (peel strength).

[0043] As shown in Figure 1, the adhesive portion 95 is positioned inward of the engaging portion 92 in the width direction X. For example, the adhesive portion 95 is provided between the outer edge of the ventral flap portion 41 and the engaging portion 92 in the width direction X. A non-adhesive portion 96 may be provided between the engaging portion 92 and the adhesive portion 95. By forming a non-adhesive portion 96 between the engaging portion 92 and the adhesive portion 95, the movement of the fastening tab 90 is permitted in the region inside the engaging portion 92 in the width direction X, thereby suppressing interference with the pet's movement. In the embodiment shown in Figure 1, the adhesive portion 95 is positioned outside the ventral flap portion 41 in the width direction X when viewed from the skin side Z1, but part or all of the adhesive portion 95 may be positioned to overlap with the ventral flap portion 41 when viewed from the skin side Z1.

[0044] In one embodiment, the absorbent article 1 further comprises a pair of leak-proof gathers 80. The leak-proof gathers 80 are positioned on the outside of the absorbent body 30 in the width direction X and prevent urine excreted in the absorbent body 30 from leaking in the width direction X. In one embodiment, each of the pair of leak-proof gathers 80 comprises a side sheet 12 and an expandable member 13. The pair of side sheets 12 are formed of, for example, a nonwoven fabric having water-repellent or hydrophobic properties. The pair of side sheets 12 are spaced apart from each other in the width direction X and extend over the entire longitudinal direction Y of the main body 2 between the ventral edge 2F and the dorsal edge 2R. As shown in Figure 3, the outer edge of the side sheet 12 in the width direction X coincides with the outer edge of the backing nonwoven fabric 22 in the width direction X and together with one outer edge of the backing nonwoven fabric 22, constitutes both side edges 2S of the main body 2. In addition, the inner portion of each side sheet 12 in the width direction X is folded back to the non-skin side Z2. Between the folded side sheets 12, an expandable member 13 is positioned, which is extended in the longitudinal direction Y. The expandable member 13 is, for example, elastic thread.

[0045] Each of the pair of leak-proof gathers 80 includes an upright portion 81 that stands upright due to the contraction of the expandable member 13, a lateral fixing portion 82 that serves as the pivot point for the upright portion 81 in the width direction X, and a vertical fixing portion 83 that serves as the pivot point for the upright portion 81 in the longitudinal direction Y. The upright portion 81, the lateral fixing portion 82, and the vertical fixing portion 83 are made of side sheets 12. The upright portion 81 is the portion of the side sheet 12 that is not joined to the surface sheet 10, and the expandable member 13 is positioned in an extended state on the upright portion 81.

[0046] The lateral fixing portion 82 is the part of the side sheet 12 that is fixed to the surface sheet 10 with hot melt adhesive or the like, and serves as the pivot point for the upright portion 81 in the width direction X. The lateral fixing portion 82 is formed over the entire length Y of the main body portion 2, at a position outside the width direction X of the upright portion 81.

[0047] The vertical fixing portion 83 is the portion of the side sheet 12 that is joined to the surface sheet 10 with hot melt adhesive or the like, and serves as the pivot point for the upright portion 81 in the longitudinal direction Y. In one embodiment, the vertical fixing portion 83 includes a ventral fixing portion 83F and a dorsal fixing portion 83R. The ventral fixing portion 83F is located inward in the width direction X from the lateral fixing portion 82 and is formed ventrally to the absorbent body 30. That is, the ventral fixing portion 83F is formed between the absorbent body 30 and the ventral edge 2F, and serves as the ventral upright pivot point for the upright portion 81. The dorsal fixing portion 83R is located inward in the width direction X from the lateral fixing portion 82 and is formed dorsally to the absorbent body 30. That is, the dorsal fixing portion 83R is formed between the absorbent body 30 and the dorsal edge 2R, and serves as the dorsal upright pivot point for the upright portion 81.

[0048] The upright portion 81 is located inside the width direction X of the lateral fixing portion 82, and is positioned between the ventral fixing portion 83F and the dorsal fixing portion 83R. An expandable member 13, which is extended in the longitudinal direction Y, is connected to the upright portion 81, and when the expandable member 13 contracts in the longitudinal direction Y, the main body portion 2 deforms in a closing direction. Due to this deformation, the upright portion 81 stands upright between the ventral fixing portion 83F and the dorsal fixing portion 83R, with the lateral fixing portion 82 as the starting point. In this way, the upright portion 81 stands upright in a position that sandwiches the absorbent material 30 from the width direction X, thereby preventing urine leakage.

[0049] In one embodiment, the ventral end of the dorsal fixing portion 83R may be positioned ventrally relative to the tail hole 70. That is, in the longitudinal direction Y, the dorsal upright pivot point of the pair of leak-proof gathers 80 is formed closer to the ventral edge 2F than to the tail hole 70. This prevents urine that has flowed along the pair of leak-proof gathers 80 from leaking out of the tail hole 70.

[0050] A tail hole 70 is formed in the main body 2. The tail hole 70 is formed in the main body 2, for example, by making a roughly U-shaped cut that is open on the ventral side of the main body 2. The tail hole 70 is a tongue-shaped opening for inserting the pet's tail. As shown in Figure 1, the tail hole 70 is positioned on the center line CW of the main body 2 in the width direction X and penetrates the main body 2 in the thickness direction. Furthermore, the tail hole 70 is formed dorsally to the dorsal edge 30R of the absorbent material 30. That is, the tail hole 70 is positioned between the dorsal edge 30R of the absorbent material 30 and the dorsal edge 2R of the main body 2. Therefore, areas where the absorbent material 30 is not placed are formed outside the tail hole 70 of the main body 2 in the width direction X, and on the dorsal side of the tail hole 70 of the main body 2. These areas have low rigidity and therefore deform flexibly along the pet's buttocks. Thus, the fit of the absorbent article 1 is improved.

[0051] The main body portion 2 has a flap-shaped tongue 72. The tongue 72 is a portion formed by making a roughly U-shaped cut in the main body portion 2 and is composed of a part of the surface sheet 10 and the back sheet 20. The tongue 72 has a base end portion 72F connected to the main body portion 2 and a tip portion 72R located on the opposite side of the base end portion 72F and separated from the main body portion 2. The tip portion 72R is facing the back side when the tongue 72 is not folded back.

[0052] The tongue-shaped piece 72 is folded back from its base end 72F toward the non-skin side Z2 to open the tail hole 70. The tail hole 70 is used to insert the tail of a pet. The shape of the tail hole 70 is not limited to a roughly tongue shape, and may be semicircular, rectangular, trapezoidal, polygonal, or elliptical. The tail hole 70 may also be formed by cutting a ring-shaped section off a part of the main body 2. In this case, the tongue-shaped piece 72 is not formed on the main body 2.

[0053] As shown in Figure 1, the absorbent article 1 may further comprise a pair of elastic members 25 that are expandable and contractible in the longitudinal direction Y. The pair of elastic members 25 are provided on both outer sides of the absorbent body 30 in the width direction X. More specifically, the pair of elastic members 25 are provided on a pair of flap portions 40 and extend over substantially the entire area of ​​the pair of flap portions 40 in the longitudinal direction Y. The target portion 45 crosses the pair of elastic members 25. In other words, the pair of elastic members 25 are provided in a position that overlaps with the target portion 45. The pair of elastic members 25 are made of an elastic material such as rubber or spandex that is contractible in the longitudinal direction Y, and are arranged along both side edges 2S of the main body portion 2 between the surface sheet 10 and the back sheet 20 of the main body portion 2. When the absorbent article 1 is worn, the pair of elastic members 25 contract in the longitudinal direction Y, causing the side edges 2S of the main body portion 2 to fit around the pet's legs.

[0054] Figure 4(a) is a diagram illustrating the procedure for attaching the absorbent item 1 to the pet P, and Figure 4(b) shows the absorbent item 1 attached to the pet P. As shown in Figure 4(a), when attaching the absorbent item 1 to the pet P, the user folds the tongue piece 72 back to the non-skin side Z2 to open the tail hole 70, and passes the pet P's tail through the tail hole 70 to the non-skin side Z2 of the diaper. Next, the user places the ventral region 51 of the main body 2 against the pet P's abdomen. Then, the user places the vicinity of the center line CL in the longitudinal direction Y of the main body 2 against the pet's urinary opening, and places the dorsal region 52 of the main body 2 against the pet P's back. Next, the user pulls the pair of fastening tabs 90 towards the back of the pet P in the direction of the torso, and engages the engaging portions 92 of the pair of fastening tabs 90 with the outer surface of the target portion 45 of the main body 2. As a result, the absorbent article 1 is attached to cover the abdomen, back, and groin of pet P, as shown in Figure 4(b).

[0055] When the pair of fastening tabs 90 engage with the target portion 45, the adhesive portion 95 comes into contact with the dorsal region 52 or the pet's body from the non-skin side Z2, so that the adhesive force of the adhesive portion 95 can suppress the displacement of the absorbent article 1.

[0056] In the embodiment described above, the rigidity of the pair of dorsal flap portions 42 can be increased by having portion 45a of the target portion 45 extend in the width direction X between the side edges 42S of the pair of dorsal flap portions 42 in the width direction X so as to traverse the entire dorsal region 52 in the width direction X. This prevents the pair of dorsal flap portions 42 from entering the inside of the absorbent article 1 when the absorbent article 1 is attached, and as a result, it is possible to prevent a gap from forming between the pet's body and the absorbent article 1. Therefore, the fit of the absorbent article 1 can be improved.

[0057] As shown in Figures 1 and 2, each of the pair of side edges 45S of the target portion 45 includes a straight portion 45Sa that is connected to the dorsal edge 45R and extends linearly in the longitudinal direction Y, and a curved portion 45Sb that curves and extends between the ventral edge 45F and the straight portion 45Sa. The positioning of the curved portion 45Sb along the pet's body improves the fit of the absorbent article 1.

[0058] As shown in Figure 2, the length L1 of the straight portion 45Sa in the longitudinal direction Y may be 2 / 3 or more of the width W3 of each of the pair of fastening tabs 90 in the longitudinal direction Y. In this case, the area of ​​the region between the straight portions 45Sa in the target portion 45 (the portion of the target portion 45 located on the dorsal side of portion 45a) can be increased, making it easier to engage the fastening tabs 90 with the target portion 45. Therefore, the absorbent article 1 can be fitted to the pet according to the size of the pet's body, and as a result, the fit of the absorbent article 1 can be further improved.

[0059] As shown in Figure 2, the angle between the straight section 45Sa and the straight line L connecting the starting point SP and ending point EP of the curved section 45Sb may be 95° or more. In this case, the area of ​​the region between the curved section 45Sb within the target section 45 can be increased, making it easier to engage the fastening tab 90 with the target section 45. Therefore, the absorbent article 1 can be fitted to the pet according to the pet's body size, and as a result, the fit of the absorbent article 1 can be further improved.

[0060] As shown in Figure 2, the length L2 of the curved portion 45Sb may be longer than the length L1 of the straight portion 45Sa. In this case, because the length L2 of the curved portion 45Sb is relatively long, the curved portion 45Sb can be positioned along the pet's body. Therefore, the fit of the absorbent article 1 can be further improved.

[0061] As shown in Figure 2, the side edge 42S of the dorsal flap portion 42 has a curved portion 42Sa that curves outward in the width direction X as it approaches the dorsal side, and the curved portion 45Sb of the target portion 45 extends so as to overlap a part of the curved portion 42Sa of the pair of dorsal flap portions 42. This allows the curved portion 42Sa of the dorsal flap portion 42 to be positioned along the pet's body, thereby improving the fit of the absorbent article 1. Also, as shown in Figure 4(a), when attaching the absorbent article 1 to the pet, the curved portion 45Sb of the target portion 45 catches on the pet's hind legs, making it less likely for the absorbent article 1 to shift. Therefore, the absorbent article 1 can be easily attached to the pet.

[0062] As shown in Figures 1 and 2, the straight portion 45Sa of the target portion 45 is positioned inward from the side edges 42S of the pair of dorsal flap portions 42 in the width direction X. In this case, the rigidity of the portion between the straight portion 45Sa of the target portion 45 and the side edges 42S of the dorsal flap portions 42 is relatively small, so that the dorsal flap portions 42 conform more easily to the pet's body. Therefore, the fit of the absorbent article 1 can be further improved.

[0063] As shown in Figures 1 and 2, the target portion 45 traverses a pair of elastic members 25. The relatively large width of the target portion 45 makes it easy to engage the fastening tab 90 with the target portion 45. Therefore, the absorbent article 1 can be fitted to the pet according to the size of the pet's body, and as a result, the fit of the absorbent article 1 can be further improved.

[0064] The target portion 45 may be made of nonwoven fabric. In this case, the contraction of the pair of elastic members 25 causes wrinkles to form in the target portion 45, thereby increasing the engagement force between the fastening tab 90 and the target portion 45. Therefore, the displacement of the absorbent article 1 can be prevented.

[0065] As shown in Figures 1 and 2, the target portion 45 extends outward from the back film 21 in the width direction X. The relatively long length of the target portion 45 makes it easy to engage the fastening tab 90 with the target portion 45.

[0066] Although various embodiments of diapers have been described above, it should be noted that various modified forms can be constructed without altering the essence of the invention, and the invention is not limited to the embodiments described above. In other words, the embodiments described above are for illustrative purposes only and do not limit the scope of the present invention.

[0067] For example, in the above embodiment, portion 45a of the target portion 45 extends in the width direction X between the side edges 42S of the pair of dorsal flap portions 42 so as to traverse the entire dorsal region 52. However, the entire target portion 45 may extend in the width direction X between the side edges 42S of the pair of dorsal flap portions 42 in the width direction X so as to traverse the entire dorsal region 52 in the width direction X.

[0068] In the above embodiment, the adhesive portion 95 is provided on a straight line SL connecting the pair of fastening tabs 90. However, the adhesive portion 95 may also be provided on the pair of flap portions 40 at a position between the straight line SL connecting the pair of fastening tabs 90 and the center line CL of the main body portion 2 in the longitudinal direction Y. For example, the adhesive portion 95 may be provided on the skin-side Z1 surface of the pair of ventral flap portions 41 at a position ventral to the pair of fastening tabs 90. The various embodiments described above can be combined within a non-contradictory range.

[0069] This disclosure includes the following:

[0070] [1] A main body comprising a surface sheet placed on the skin side, a back sheet placed on the non-skin side, and an absorbent material placed between the surface sheet and the back sheet, having a ventral region that covers the pet's abdomen when worn, a dorsal region that covers the pet's back when worn, and a crotch region placed between the ventral region and the dorsal region in the longitudinal direction, The target portion provided on the non-skin side of the back region of the main body, A pair of fastening tabs are provided on the ventral region of the main body and engage with the target portion, Equipped with, The main body portion includes a pair of dorsal flap portions that protrude outward in the width direction perpendicular to the longitudinal direction in the dorsal region, At least a portion of the target portion extends in the width direction between the side edges of the pair of dorsal flap portions in the width direction, so as to traverse the entire dorsal region in the width direction. Absorbent items for pets.

[0071] [2] When the direction from the dorsal region toward the ventral region is defined as the ventral side, and the direction from the ventral region toward the dorsal region is defined as the dorsal side, the target portion includes a ventral edge positioned on the ventral side, a dorsal edge positioned on the dorsal side, and a pair of side edges connecting both ends of the ventral edge and both ends of the dorsal edge to each other, The absorbent pet article according to [1], wherein each of the pair of side edges of the target portion includes a straight portion connected to the dorsal edge and extending linearly in the longitudinal direction, and a curved portion extending in a curved manner between the ventral edge and the straight portion.

[0072] [3] The pet absorbent article according to [2], wherein the length of the straight portion is 2 / 3 or more of the width of each of the pair of fastening tabs in the longitudinal direction.

[0073] [4] The curved portion extends between the starting point connected to the ventral edge and the ending point connected to the straight portion, The pet absorbent article according to [2] or [3], wherein the angle between the straight section and the straight line connecting the starting point and the ending point of the curved section is 95° or more.

[0074] [5] The length of the curved portion is longer than the length of the straight portion. Pet absorbent article according to any one of [2] to [4].

[0075] [6] The pair of dorsal flap portions include the pair of side edges in the width direction, Each of the side edges of the pair of dorsal flap portions has a curved portion that curves outward in the width direction as it approaches the dorsal side, The curved portion of the target portion extends so as to overlap at least a portion of the curved portion of the pair of dorsal flap portions, as described in any one of [2] to [5].

[0076] [7] The straight portion of the target portion is positioned inward in the width direction from the side edges of the pair of dorsal flap portions, as described in [6].

[0077] [8] The main body is provided on both outer sides of the absorber in the width direction and further comprises a pair of elastic members that are expandable and contractible in the longitudinal direction, The target portion is located across the pair of elastic members, as described in any one of [1] to [7] for pet absorbent article.

[0078] [9] The target portion is made of nonwoven fabric, as described in [8].

[0079]

[10] The back sheet includes a back film that is impermeable to water and a back nonwoven fabric that is positioned on the non-skin side of the back film, The pet absorbent article according to any one of [1] to [9], wherein both edges in the width direction of the backing film are exposed from both edges in the width direction of the main body portion over the entire area of ​​the crotch region.

[0080]

[11] The back sheet includes a back film that is impermeable to water and a back nonwoven fabric that is positioned on the non-skin side of the back film, The target portion extends outward in the width direction from the back film, as described in any one of [1] to

[10] , for pet absorbent article.

[0081]

[12] The skin-facing surface of at least one of the pair of fastening tabs and the pair of flap portions is provided with an adhesive portion having adhesive properties. The adhesive portion is located on a straight line connecting the pair of fastening tabs, or in the region between the straight line connecting the pair of fastening tabs and the center line of the main body in the longitudinal direction, as described in any one of [1] to

[11] . [Explanation of symbols]

[0082] 1... Absorbent article for pets, 2... Main body, 10... Surface sheet, 20... Back sheet, 21... Back film, 22... Back nonwoven fabric, 25... Elastic material, 30... Absorbent body, 40... Flap part, 42... Dorsal flap part, 42S... Side edge, 42Sa... Curved part, 45... Target part, 45S... Side edge, 45Sa... Straight part, 45Sb... Curved part, 45F... Ventral edge, 45Fa... End, 45R... Dorsal edge, 45Ra... End, 51... Ventral region, 52... Dorsal region, 53... Crotch region, 90... Fastening tab, 95... Adhesive part, EP... End point, L... Straight line, SP... Start point, X... Width direction, Y... Longitudinal direction, Z1... Skin side, Z2... Non-skin side.

Claims

1. The main body comprises a surface sheet positioned on the skin side, a back sheet positioned on the non-skin side, and an absorbent material positioned between the surface sheet and the back sheet, and having a ventral region that covers the pet's abdomen when worn, a dorsal region that covers the pet's back when worn, and a crotch region positioned between the ventral region and the dorsal region in the longitudinal direction. The target portion provided on the non-skin side of the back region of the main body, A pair of fastening tabs are provided on the ventral region of the main body and engage with the target portion, Equipped with, The main body portion includes a pair of dorsal flap portions that protrude outward in the width direction perpendicular to the longitudinal direction in the dorsal region, At least a portion of the target portion extends in the width direction between the side edges of the pair of dorsal flap portions in the width direction, so as to traverse the entire dorsal region in the width direction. Absorbent items for pets.

2. When the direction from the dorsal region toward the ventral region is defined as the ventral side, and the direction from the ventral region toward the dorsal region is defined as the dorsal side, the target portion includes a ventral edge positioned on the ventral side, a dorsal edge positioned on the dorsal side, and a pair of side edges connecting both ends of the ventral edge and both ends of the dorsal edge to each other, The absorbent article for pets according to claim 1, wherein each of the pair of side edges of the target portion includes a straight portion connected to the dorsal edge and extending linearly in the longitudinal direction, and a curved portion extending in a curved manner between the ventral edge and the straight portion.

3. The pet absorbent article according to claim 2, wherein the length of the straight portion is 2 / 3 or more of the width of each of the pair of fastening tabs in the longitudinal direction.

4. The curved portion extends between the starting point connected to the ventral edge and the ending point connected to the straight portion. The pet absorbent article according to claim 2, wherein the angle between the straight section and the straight line connecting the starting point and the ending point of the curved section is 95° or more.

5. The absorbent article for pets according to claim 2, wherein the length of the curved portion is longer than the length of the straight portion.

6. The pair of dorsal flap portions include a pair of side edges in the width direction, Each of the side edges of the pair of dorsal flap portions has a curved portion that curves outward in the width direction as it approaches the dorsal side, The absorbent article for pets according to claim 2, wherein the curved portion of the target portion extends so as to overlap at least a portion of the curved portion of the pair of dorsal flap portions.

7. The pet absorbent article according to claim 6, wherein the straight portion of the target portion is positioned inward in the width direction from the side edges of the pair of dorsal flap portions.

8. The main body is further provided with a pair of elastic members that are expandable and contractible in the longitudinal direction, on both outer sides of the absorber in the width direction, The pet absorbent article according to claim 1, wherein the target portion traverses the pair of elastic members.

9. The pet absorbent article according to claim 8, wherein the target portion is made of a nonwoven fabric.

10. The aforementioned back sheet includes a back film that is impermeable to water and a back nonwoven fabric that is positioned on the non-skin side of the back film. The absorbent pet article according to claim 1, wherein both edges in the width direction of the backing film are exposed from both edges in the width direction of the main body portion throughout the entire crotch area.

11. The aforementioned back sheet includes a back film that is impermeable to water and a back nonwoven fabric that is positioned on the non-skin side of the back film. The pet absorbent article according to claim 1, wherein the target portion extends outward in the width direction from the back film.

12. The skin-facing surface of at least one of the pair of fastening tabs and the pair of flap portions is provided with an adhesive portion having adhesive properties. The absorbent article for pets according to claim 1, wherein the adhesive portion is located on a straight line connecting the pair of fastening tabs, or in a region between the straight line connecting the pair of fastening tabs and the center line of the main body in the longitudinal direction.

Images