Diaper for pet

Abstract

To provide a diaper 1 for pet for preventing a pet 41 from chewing ends 20, 21 of the diaper 1 for pet and removing the diaper.SOLUTION: A diaper 1 for pet wound around a body 42 of a pet 41 includes: a liquid-permeable surface sheet 2; a water-proof rear surface sheet 3; an absorber 4 for liquid; a bonding material 7 to be a hook material removably bonded to the rear surface sheet 3 in a width direction of one end part 20 in a longitudinal direction of the surface sheet 2; a pair of rising pieces 11 provided along the longitudinal direction from both end parts in the width direction of the surface sheet 2; and a pair of lateral surface guard pieces 12 positioned outside the rising pieces 11 from both ends in the width direction of the rear surface sheet 3. In four corner areas 38a to 38d, adhesion parts 10a to 10d where the rear surface sheet 3, the surface sheet 2, the rising pieces 11, and the lateral surface guard pieces 12 are overlapped and adhered are composed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a pet diaper. [Background technology]

[0002] In recent years, the number of people who keep pets indoors has been increasing. Pets have the habit of urinating not only as a physiological phenomenon, but also as a way to mark their territory. Therefore, when pets are kept indoors, they urinate on the walls and furniture of the room, causing a problem of soiling the interior of the room.

[0003] As a conventional technique for solving such problems, for example, Patent Document 1 discloses a pet diaper that is wrapped around a pet's body and placed with the longitudinal direction as the wrapping direction, and is characterized by including a band-shaped top sheet that is breathable and liquid-permeable, a band-shaped back sheet that is liquid-impermeable and is joined to the top sheet in a superimposed state, an absorbent body that is arranged between the top sheet and the back sheet and has liquid-absorbent properties, an upright piece that extends along the longitudinal direction of the top sheet and has a base end that is joined to the surface of the top sheet opposite the surface facing the back sheet, and a free end that can be resiliently stretched and contracted, and a joint that detachably joins one longitudinal end of the top sheet to the other longitudinal end of the back sheet.

[0004] Furthermore, Patent Documents 2 and 3 disclose technologies relating to pet diapers in which a pair of inner edges of a side sheet constituting the upright gathers, which are disposed on the surface layer side of the side portion of the pet absorbent article and stand up from the surface layer, are folded back and joined to the outside in the width direction of the pet absorbent article at a pair of ends so that the upright gathers can easily collapse outward in the width direction of the pet absorbent article. In Patent Documents 2 and 3, the outer width direction portions of the upright gathers are not bonded along their entire length. As a result, the unbonded portions are undesirably bonded to the bonding material. This undesired bonding can cause problems, such as a pet biting the portion of the upright gathers that protrudes outward in the lengthwise or widthwise direction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-187095 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-205579 [Patent Document 3] Japanese Patent Application Laid-Open No. 2013-000034 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a pet diaper that can reliably prevent excreted urine from leaking to the outside, is easy to put on, and is difficult for a pet to remove. [Means for solving the problem]

[0007] In this specification, to avoid redundancy, reference numerals 20 and 21 are used to indicate one longitudinal end and the other longitudinal end of the pet diaper 1, 51 and the topsheet 2, respectively. The longitudinal lengths of the topsheet 2 and the backsheet 3 may be equal or different; for example, the longitudinal length of the backsheet 3 may be longer than that of the topsheet 2. Reference numeral 10, indicating the adhesive portion, collectively indicates reference numerals 10a and 10b on both widthwise outer sides of the longitudinal end portions 20, 30 described below, and also collectively indicates reference numerals 10c and 10d on both widthwise outer sides of the other longitudinal end portions 21, 31. The description of pet diaper 1 may also include pet diaper 51 (Figures 12 and 13).

[0008] The present invention provides A pet diaper 1 is wrapped around a body 42 of a pet 41 and placed with the longitudinal direction as the wrapping direction, a top sheet 2 that constitutes an inner surface layer and has liquid permeability; A back sheet 3 constituting an outer surface layer; an absorbent body 4 disposed between the top sheet 2 and the back sheet 3 and capable of absorbing liquid; a bonding material 7 provided at least in the middle of the width direction perpendicular to one end 20 of the top sheet 2 in the longitudinal direction, and removably bonded to the back sheet 3 at the other end 21 in the longitudinal direction; a band-shaped first sheet body 6 extending on both sides in the width direction along the longitudinal direction of the top sheet 2, the pair of upstanding pieces 11 extending from first base ends 14 connected to both ends 22 (FIG. 5) in the width direction on a surface of the top sheet 2 opposite to a surface facing the back sheet 3 to first free ends 15 spaced apart by a first distance W11 in a direction approaching each other, and a pair of first cords 8 elastically stretchable and contractible are disposed on the first sheet body 6 in a longitudinally tensed state; a pair of side guard pieces 12, each of which is a strip-shaped second sheet body 13 extending on both sides in the width direction along the longitudinal direction of the top sheet 2, and which extends from a second base end 18 connected to both width direction ends 23 (FIG. 5) of the back sheet 3 to a second free end 19 spaced apart at a second interval W12 in a direction approaching each other, and on which a second cord 9 capable of elastically expanding and contracting is arranged in a longitudinally tensed state; This pet diaper is characterized in that it includes an adhesive portion 10 where the side guard pieces 12, the upright pieces 11, the top sheet 2 and the back sheet 3 are joined in at least one of two pairs of regions 38a to 38d that are defined by positions 34, 37 within the range extending inward in the longitudinal direction from both longitudinal ends 20, 21 (mainly as shown in Figure 14) and the widthwise inner ends 54, 55 where the upright pieces 11 and side guard pieces 12 overlap from both widthwise ends 47, 48, and that form the adhesive portion 10 where the side guard pieces 12, the upright pieces 11, the top sheet 2 and the back sheet 3 are joined in the joined state by the bonding material 7. [Effects of the Invention]

[0009] In the following description, reference will be made to FIGS. 1 to 13 to illustrate embodiments of the present invention, and to FIG. 14 to illustrate the technical concept of the present invention.

[0010] To facilitate understanding of the present invention, an outline of an embodiment shown in Figs. 1 to 13 will be described. When putting a pet diaper 1 on a pet 41, an operator such as an owner wraps the diaper 1 around the body 42 of the pet 41 and removably joins the joining material 7 provided on the topsheet 2 to the backsheet 3. After joining, the operator pulls out at least one side guard piece 12 of the pet 41 (e.g., the head side, left side in Fig. 6 ) so that the second cords 9 of the side guard piece 12 on the head side are positioned outward of the widthwise ends 47, 48 of the topsheet 2 (e.g., the head side) (toward both widthwise sides in Fig. 6 ) and resiliently attaches the side guard piece 12 to the body 42 (in the direction of arrow A in Fig. 6 ). The resilience of the second cords 9 causes the side guard piece 12 to stand up and adhere closely to the outer periphery of the pet 41's body 42, widthwise outward of the topsheet 2 (e.g., outward of the head side), so that a tightening force is applied to the outer periphery of the pet's body 42. The upstanding pieces 11, located widthwise inward of the side guard pieces 12, are caused by the resilience of the first cords 8 to rise and adhere closely to the outer circumferential surface of the body 42 as indicated by arrow B in FIG. 6 within the width of the topsheet 2 (while remaining positioned inward of the widthwise ends 47, 48), applying a tightening force to the outer circumferential surface of the body 42. Both the upstanding pieces 11 and the side guard pieces 12 resiliently press against the surface of the body 42 of the pet 41, allowing the diaper 1 to be fitted tightly to the body 42. This prevents the diaper 1 from shifting left and right around the body or in the front and rear directions between the head and tail, even if the pet 41 moves after being fitted, allowing the diaper 1 to be fitted securely to the pet 41. The backsheet 3 may be made of a nonwoven fabric that can be engaged and joined to a joining material 7, such as a hook material, or a separate joining material, such as a loop material, that can be joined to the joining material 7 may be provided.

[0011] The first sheet body 6 of the pair of upright pieces 11 extends from a first base end 14 that connects to both widthwise ends 22 (Figure 5) of the surface of the top sheet 2 opposite the surface facing the back sheet 3 to a first free end 15 that is spaced a first distance W11 in a direction approaching each other.

[0012] The pair of side guard pieces 12 extend from second base ends 18, where the second sheet body 13 is connected to both widthwise ends 23 (Fig. 5) of the backsheet 3, to second free ends 19 spaced a second distance W12 apart in a direction approaching each other. Therefore, the side guard pieces 12 extend inward in the width direction from outside the first base ends 14 of the standing pieces 11, overlapping the side of the standing pieces 11 opposite to the topsheet 2 (upper in Figs. 4 and 5). Regarding the first distance W11 and the second distance W12, as shown in Figs. 1 and 2, W11<W12でもよいが、W11=W12、またはW11> W12 is also fine.

[0013] FIG. 14 is a front view showing the pet diaper 1 in an unfolded state to explain the technical concept of the present invention. The adhesive portion 10 has a configuration in which the side guard pieces 12, the upstanding pieces 11, the topsheet 2, and the backsheet 3 are bonded together. The bonding typically includes a configuration in which the pieces are fixed inseparably in a planar, dotted, or elongated linear shape by an adhesive such as a hot melt adhesive, or by ultrasonic bonding, dielectric bonding, or other methods, and can also be called bonding. The planar shape includes a configuration in which the adhesive portions 10a-10d extend over the entire surface or a portion of the surface, for example, over an area larger than the elongated area of ​​the bonding material 7.

[0014] According to the present invention, the regions 38a to 38d, which are ranges within which the adhesive regions 10a to 10d can be arranged, are set as follows. That is, to achieve the object of the present invention of preventing the pet 41 from biting and pulling a portion of the pet diaper 1 near the longitudinal ends 20, 21 with its mouth and thereby undoing the bond, the adhesive regions 10 are arranged in (a) at least one of two pairs of regions that face each other in a bonded state by the bonding material 7, or (b) in at least one of the pairs. The adhesive regions 10 are formed in a planar, dotted, or elongated linear shape. The adhesive regions 10 may be arranged in one or more locations within each of the regions 38a to 38d.

[0015] (a) Regarding the regions that form two pairs facing each other in the state joined by the joining material 7, in the coordinate plane where the axis P in the width direction X, which is the upper and lower symmetry plane of FIG. 14, and the axis Q in the longitudinal direction Y, which is the left and right symmetry plane, are orthogonal at the origin O, the region 38a existing in the first quadrant and the region 38c existing in the fourth quadrant form one pair. Also, the region 38b existing in the second quadrant and the region 38d existing in the third quadrant form another pair. These regions 38a to 38d are shown with diagonal lines inside each side of the four quadrilaterals in FIG. 14, and are defined within the range extending inward in the longitudinal direction from both longitudinal ends 20, 21 of the pet diaper 1 to positions 34, 37 within the longitudinal direction, and within the range defined by the inner ends 54, 55 in the width direction where the standing piece 11 and the side guard piece 12 overlap from both width ends 47, 48. The inner ends 54, 55 in the width direction where the standing piece 11 and the side guard piece 12 overlap are the outer ends that are farther from the axis Q in the width direction among the first free end 15 of the standing piece 11 and the second free end 19 of the side guard piece 12. For example, in a configuration where the widths of the standing piece 11 and the side guard piece 12 in the width direction are equal, it is the position where the first and second free ends 15, 19 coincide. In a configuration where the widths of the standing piece 11 and the side guard piece 12 in the width direction are different, it is the position of the first or second free end 15, 19 with the shorter width in the width direction. For example, as shown in FIGS. 1 and 2, when W11 < W12, it is the position of the second free end 19.

[0016] The positions 34, 37 within the range extending inward in the longitudinal direction from both longitudinal ends 20, 21 may be, for example, within the range of about 2 / 5 of the total length in the longitudinal direction from both longitudinal ends 20, 21, or may be within the range of about 1 / 3 of the total length in the longitudinal direction from both longitudinal ends 20, 21.

[0017] According to the present invention, the positions 34 and 37 in each of the regions 38a to 38d are selected at positions within a range of, for example, about 2 / 5 of the total length in the longitudinal direction from both end portions 20 and 21 in the longitudinal direction. For example, these positions 34 and 37 may be positions near both end portions 45 and 46 in the longitudinal direction of the absorber 4. In one embodiment shown in FIG. 14, they may be selected and set at positions outside the absorber 4 in the longitudinal direction from both end portions 45 and 46 of the absorber 4. However, for example, in other embodiments, they may be selected and set at positions that enter inward in the longitudinal direction of the absorber 4 from both end portions 45 and 46 of the absorber 4.

[0018] (b) For at least one region of each pair of the two pairs of regions, it is at least one region 38a or 38c, or both 38a and 38c, of the regions 38a and 38c that form one pair of the two pairs. Also, it is at least one region 38b or 38d, or both 38b and 38d, of the regions 38b and 38d that form the other pair of the two pairs.

[0019] In the embodiments of FIGS. 1 to 13, the adhesive portions 10a to 10d are respectively formed in a planar shape as shown in FIGS. 1 to 3 within the regions 38a to 38d. Further, a portion of the first sheet body 6 where W11 < W12 and the second sheet body 13 does not overlap is also adhered to the surface sheet 2. In FIGS. 1 to 3, these adhered portions are illustrated with a large number of fine dots. In other embodiments where W11 > W12, a portion of the second sheet body 13 that does not overlap the first sheet body 6 may also be adhered to the surface sheet 2.

[0020] According to the present invention, the bonding material 7 is provided at at least an intermediate portion in the width direction perpendicular to the longitudinal direction at one end portion 20 in the longitudinal direction of the surface sheet 2. The bonding material 7 is installed on the inner surface side of the surface sheet 2, that is, on the surface opposite to the back sheet 3, so as not to overlap the adhesive portion 10 in the embodiments shown in FIGS. 1 to 4A, or so as not to overlap the adhesive regions 38a to 38d in FIG. 14.

[0021] In other embodiments, the bonding material 7 may be provided so as to overlap the entire width of the adhesive portion 10a or 10b (left-right direction in FIGS. 4B to 4E) as shown in FIGS. 4B and 4C, or the bonding material 7 may be provided so as to overlap a portion of the width of the adhesive portion 10a or 10b as shown in FIGS. 4D and 4E. In still other embodiments, the bonding material 7 may be provided so as to overlap the entire width or a portion of the adhesive region 38a or 38b in FIGS. 4D and 4E. Such configurations of FIGS. 4A to 4E are also within the spirit of the present invention. The remaining configurations of the embodiments of FIGS. 4B to 4E are the same as those of the embodiment of FIG. 4A.

[0022] For example, referring to Fig. 4B, the bonding material 7 placed on the inner surface side (upper surface side in Fig. 4B) of the topsheet 2 in another embodiment of this invention may extend in the width direction of Fig. 4B and be bonded with an adhesive to the first sheet body 6 of the standing piece 11 at bonding portions 10a, 10b to form a sandwich structure. The bonding material 7 is thus formed by laminating and bonding the first sheet body 6 of the standing piece 11, the second sheet body 13 of the side guard piece 12, their overlapping portions 27, and further the overlapping portion 17 of the topsheet 2 on the topsheet 2. According to the embodiment of FIG. 4B, the adhesive portions 10a, 10b sandwiching the bonding material 7 are relatively harder and more rigid than the remaining portions, and are less likely to bend or deform. For example, they are substantially flat in their natural state. Therefore, when the diaper 1 having such a configuration is fitted to the body 42 of a pet 41, the side guard pieces 12 and the standing pieces 11 do not separate outward from the top sheet 2 and the back sheet 3, providing good adhesion. Furthermore, the wearer's fingers can easily pinch the hard adhesive portions 10, making it easy to fit the pet diaper 1 to the body 42. The standing pieces 11 The side guard pieces 11 and the side guard pieces 12 do not move away from the body 42 and float up and sway due to the movement of the pet 41, and the pet 41, which is flexible and capable of supple movement, will not bite the corners of the side guard pieces 12 and the standing pieces 11 with its mouth, preventing the pet 41 from removing the diaper 1 from the body 42. Furthermore, the bonding material 7 is more reliably prevented from undesirably bonding to parts of the topsheet 2 and backsheet 3 that are separated from the bonding material 7 during the process of putting the diaper 1 on the pet 41, which also makes it easier to put the diaper 1 on the pet 41. Because the bonding material 7 is covered by the standing pieces 11 and the side guard pieces 12, even if the pet 41 bites the corners of the side guard pieces 12 and the standing pieces 11 that protrude outward with its mouth, the bonding material 7 will not peel off from the topsheet 2 or fall off, and the bonding state with the backsheet 3 can be reliably maintained.

[0023] 4B , the bonding material 7 is not exposed upward at the adhesive joints 10a and 10b and is therefore not bonded to the backsheet 3. Therefore, with this sandwich structure of the bonding material 7, no upward pulling force acts upon the bonding material 7 when the diaper 1 is removed, and since the bonding material 7 is reinforced by the upright pieces 11 and side guard pieces 12 of the adhesive joints 10a and 10b, the bonding material 7 is less likely to peel from the topsheet 2 across the entire width of the adhesive joints 10a and 10b (the left-right direction in FIGS. 4B to 4E ), improving the durability of the diaper 1. That is, at the adhesive joints 10a and 10b, the bonding material 7 is not subjected to pulling force from the backsheet 3, and the upright pieces 11 and side guard pieces 12 act as reinforcing members for the topsheet 2. This allows the diaper 1 to be used repeatedly without damaging the topsheet 2, and also makes it easier for the operator to grasp the adhesive joints 10a and 10b with their fingers when removing the diaper 1. The same effect can be achieved in the embodiments shown in Figures 4D and 4E, which have a sandwich structure of the bonding material 7, in which the adhesive portions 10a and 10b are not subjected to an upward tensile force from the back sheet 3. The present invention achieves such an effect.

[0024] 4C, in still another embodiment, the bonding material 7 placed on the inner side of the topsheet 2 (the upper surface side in FIG. 4C) may extend in the width direction of the left and right in FIG. 4C, and may be laminated on the first sheet body 6 of the standing piece 11 and the second sheet body 13 of the side guard piece 12 at adhesive joints 10a, 10b and bonded with an adhesive. Since the bonding material 7 is attached by extending over the standing piece 11 and the side guard piece 12, it is possible to achieve the effect of preventing the bonding material 7 from peeling off or falling off the topsheet 2.

[0025] Referring to FIG. 4D , in another embodiment, the adhesive material 7 is disposed on the inner surface of the topsheet 2 (the upper surface of FIG. 4D ), and extends in the width direction of FIG. 4D at the adhesive portions 10a and 10b. The adhesive portion 7 extends partially between the first sheet body 6 of the standing piece 11 and the overlapping portion 27 of the second sheet body 13 of the side guard piece 12, sandwiching them with adhesive. In yet another embodiment, the adhesive material 7 of FIG. 4D may extend across the entire width of the adhesive portions 10a and 10b. In FIG. 4D , the adhesive material 7 has an exposed portion on the first sheet body 6 of the standing piece 11 that is not covered by the second sheet body 13 of the side guard piece 12 and the overlapping portion 27, and this exposed portion can be bonded to the backsheet 3 when the diaper 1 is attached to the pet 41. The second free end 19 of the second sheet body 13 and the free end of the overlapping portion 27 are aligned and located outward in the width direction (to the right in FIG. 4D ) from the free end 15 of the first sheet body 6. Therefore, the exposed portion of the bonding material 7 is subjected to the upward pulling force shown in FIG. 4D when the diaper 1 is removed from the pet diaper 41. The exposed portion (i) has a small area, and therefore the upward pulling force is small or zero; (ii) it is reinforced by a sandwich structure in which the first sheet body 6 is interposed between the exposed portion and the topsheet 2, and the second sheet body 13 and the overlapping portion 27 also provide reinforcement; and (iii) the area of ​​the first sheet body 6 bonded to the topsheet 2 at the adhesive portions 10a and 10b is larger than the adhesive area of ​​the bonding material 7 attached to the topsheet 2, as in the other embodiments, so that the peeling force required to peel the first sheet body 6 upward in FIG. 4D from the topsheet 2 is sufficiently large. These configurations (i) to (iii) ensure that even if the bonding material 7 and the back sheet 3 are repeatedly bonded and separated, the bonding material 7 will not peel off from the top sheet 2, and the top sheet 2 will not be damaged, thereby improving the durability of the diaper 1.

[0026] The embodiment of FIG. 4E is similar to that of FIG. 4D, but noteworthy is that the adhesive material 7 is entirely covered by at least the side guard pieces 12 at the adhesive joints 10a and 10b, as in FIG. 4A. The adhesive material 7 is not exposed toward the backsheet 3 at the adhesive joints 10a and 10b, and the exposed portions of the adhesive material 7 in FIG. 4D do not exist in FIG. 4E. Because the adhesive material 7 is not exposed toward the backsheet 3 at the adhesive joints 10a and 10b, it is not bonded to the backsheet 3. At the adhesive joints 10a and 10b, the upstanding pieces 11, the side guard pieces 12, and the adhesive material 7 overlap, improving and reinforcing the strength of the adhesive joints 10a and 10b. Therefore, even if the adhesive material 7 is repeatedly attached and detached from the backsheet 3 during use of the diaper 1, the innersheet 2, which has a relatively low strength, to which the adhesive material 7 is attached, is not damaged, and the adhesive material 7 does not separate from the innersheet 2 and the adhesive joints 10a and 10b, improving the durability of the diaper 1.

[0027] In the embodiment of Figures 4D and 4E, the bonding material 7 is formed to extend partially to the middle of the width of the adhesive portions 10a and 10b, but it may also be formed to extend over the entire width of the adhesive portions 10a and 10b, as in Figures 4B and 4C.

[0028] The present invention also provides The first cord 8 is characterized by being disposed at a first free end 15 of the upright piece 11 .

[0029] The present invention also provides The absorbent article further includes a waterproof sheet 5 (FIGS. 12 and 13) interposed between the backsheet 3 and the absorbent body 4.

[0030] The present invention also provides Prepare the pet diaper 1, The pet diaper 1 is wrapped around the body 42 of the pet 41 with its longitudinal direction as the wrapping direction. The bonding material 7 of the top sheet 2 is detachably bonded to the back sheet 3, This is a method of putting on a pet diaper 1, in which at least one of the pair of side guard pieces 12 is pulled out so that the second cord 9 of that side guard piece 12 is positioned widthwise outward of the top sheet 2 (arrow A in Figure 6) and elastically attached to the body 42.

[0031] According to the present invention, as shown in Fig. 6, both of a pair of side guard pieces 12, including at least one (for example, the head side) of the pet 41 as well as the other (for example, the tail side), may be pulled out so as to be positioned on both widthwise outward sides of the topsheet 2. In yet another embodiment, the side guard piece 12 of only the other (for example, the tail side) of the pet 41 may be pulled out so as to be positioned on the widthwise outward side of the tail side of the topsheet 2. According to the concept of the present invention, the side guard piece 12 does not have to be pulled out so as to be positioned on either the head side or the tail side outward of the topsheet 2 in the widthwise direction. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a perspective view of a pet diaper 1 according to an embodiment of the present invention. [Figure 2] FIG. 1 is a front view showing the pet diaper 1 in an unfolded state. [Figure 3] FIG. 2 is a rear view showing the pet diaper 1 in an unfolded state. [Figure 4A] FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2. [Figure 4B] 4 is a corresponding enlarged cross-sectional view of a portion taken along section line IV-IV of FIG. 2 in accordance with another embodiment of the present invention. [Figure 4C] 4 is a corresponding enlarged cross-sectional view of a portion of FIG. 2 taken along section line IV-IV in accordance with yet another embodiment of the present invention. [Figure 4D] 4 is a corresponding enlarged cross-sectional view of a portion taken along section line IV-IV of FIG. 2 in accordance with another embodiment of the present invention. [Figure 4E] 4 is a corresponding enlarged cross-sectional view of a portion of FIG. 2 taken along section line IV-IV in accordance with yet another embodiment of the present invention. [Figure 5] FIG. 3 is a cross-sectional view taken along the cutting line VV in FIG. 2. [Figure 6] 5, showing the state in which each side guard piece 12 of the pet diaper 1 is pulled outward in both width directions beyond the topsheet 2 and resiliently attached to the body 42 of the pet 41. FIG. [Figure 7] 1 is a side view showing a state in which the pet diaper 1 is attached to the body 42 of a pet 41. FIG. [Figure 8] FIG. 8 is a perspective view showing the state in which the pet diaper 1 shown in FIGS. 1 to 7 is folded into four and packed. [Figure 9] 9 is a cross-sectional view taken along the line IX-IX in FIG. 8. [Figure 10] FIG. 8 is a perspective view showing the state in which the pet diaper 1 shown in FIGS. 1 to 7 is folded into three and packed. [Figure 11] FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG. [Figure 12] FIG. 5 is a cross-sectional view corresponding to FIG. 4, showing a pet diaper 51 according to another embodiment of the present invention. [Figure 13] 13 is a cross-sectional view showing the pet diaper 51 shown in FIG. 12, corresponding to the above-mentioned FIG. 5. FIG. [Figure 14] 1 is a front view showing a pet diaper 1 in an unfolded state, for explaining the technical idea of ​​the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] A pet diaper 1 according to one embodiment of the present invention will be described below with reference to FIGS.

[0034] Fig. 1 is a perspective view of the pet diaper 1, Fig. 2 is a front view showing the pet diaper 1 in an unfolded state, and Fig. 3 is a back view showing the unfolded state of the pet diaper 1. Referring to these drawings, the pet diaper 1 is belt-shaped, and when a pet 41 such as a dog is kept indoors, the pet diaper 1 is worn by wrapping it around the body 42 of the pet 41 with its longitudinal direction Y as the wrapping direction, so as to be used like a belly band.

[0035] Fig. 4A is a cross-sectional view taken along the cutting line IV-IV in Fig. 2, showing the state in which the standing pieces 11, the side guard pieces 12, the topsheet 2, and the backsheet 3 are bonded at adhesive joints 10a-10d (collectively referred to as 10) at both ends in the width direction X perpendicular to the longitudinal direction Y from both ends in the longitudinal direction Y to the vicinity of where the absorber 4 is installed. Fig. 5 is a cross-sectional view taken along the cutting line VV in Fig. 2, showing the state before the side guard pieces 12 are pulled outward in the width direction X of the pet diaper 1 (left and right in Fig. 5). The pet diaper 1 has a liquid-permeable topsheet 2 constituting an inner layer and a backsheet 3 constituting an outer layer, and a liquid-absorbing absorber 4 disposed between the topsheet 2 and the backsheet 3. The joining material 7 is realized, for example, by the hook material in a sheet-like surface fastener made of hook material and loop material, and the back sheet 3 may be a nonwoven fabric that can function as the loop material, or the loop material may be attached to the back sheet 3 made of synthetic resin or the like in correspondence with the hook material, thus forming the fastening means. For example, if the fastening means is a mechanically locking hook material such as an engaging piece with a hook-shaped engaging element implanted or an engaging piece with a mushroom-shaped engaging element implanted, the part to be joined to the hook material may be a loop-shaped engaging piece or nonwoven fabric.

[0036] The bonding material 7 is provided in a widthwise intermediate portion, for example, the center portion, on the longitudinal end portions 20, 30 side of the topsheet 2, and is detachably bonded to the backsheet 3. The pair of upstanding pieces 11 are provided along the longitudinal direction at free end portions 15 positions spaced apart by a distance W11 from base end portions 14 connected to both widthwise end portions of the topsheet 2 in the direction approaching each other. The pair of side guard pieces 12 are provided along the longitudinal direction at free end portions 19 positions spaced apart by a distance W12 from base end portions 18 connected to both widthwise end portions of the backsheet 3 in the direction approaching each other.

[0037] Near each end 47, 48 in the width direction of the pet diaper 1, both the standing pieces 11 and the side guard pieces 12 are attached to the pet 41 in an upright state, forming a double structure. This provides a so-called double guard against urine leakage, more reliably preventing urine from leaking to the outside.

[0038] The first sheet body 6 of the standing piece 11 is preferably made of a water-repellent material, such as a water-repellent nonwoven fabric. The second sheet body 13 of the side guard piece 12 is preferably made of a waterproof material similar to the back sheet 3, such as a sheet made by laminating a nonwoven fabric and a polyethylene sheet.

[0039] The inside of the standing piece 11 in the width direction is not bonded to the topsheet 2, and starts from a base end 14 (Fig. 5) on the inside of the width direction that is bonded to the topsheet 2. The free end 15 of the first sheet body 6 of the standing piece 11 is, for example, folded back and bonded, and the first cord 8 is enclosed and bonded in the space formed by the folding back of this free end 15 over an area longer than the longitudinal length of the absorbent body 4. The first cord 8 may be arranged between the free end 15 and the base end 14 of the first sheet body 6.

[0040] The topsheet 2 may be any liquid-permeable sheet, such as a fiber sheet made of synthetic fibers and recycled fibers, or a nonwoven fabric formed by physically entangling fibers in a fiber web. In this embodiment, the topsheet 2 is formed using a nonwoven fabric. Because the topsheet 2 is a liquid-permeable sheet, it can guide excreted urine through the topsheet 2 to the absorbent body 4.

[0041] The topsheet 2 is a strip-shaped rectangular sheet. Both end portions 20, 21 of the topsheet 2 in the longitudinal direction Y are formed in a straight line parallel to the width direction X. The width direction X of the topsheet 2 is a direction perpendicular to the longitudinal direction Y, and the thickness direction Z is a direction perpendicular to both the longitudinal direction Y and the width direction X.

[0042] The backsheet 3 can be formed using a liquid-impermeable, flexible sheet or the like. In this embodiment, a liquid-impermeable material (e.g., a polyethylene sheet) is attached to one side of a nonwoven fabric to make it waterproof, or a nonwoven fabric treated with a water-repellent coating to prevent liquid from passing through under the pressure of liquid seeping out of the absorbent body 4 can be used. This nonwoven fabric can be engaged with the joining material 7, which is a hook material. A liquid-impermeable resin sheet such as a polyethylene sheet can also be used. In this case, a joining material, such as a loop material, that can be engaged with the joining material 7, which is a hook material, is provided on the backsheet 3. The backsheet 3 can also be a sheet that is liquid-impermeable, flexible, and breathable. Using such a breathable sheet can prevent an increase in humidity between the pet diaper 1 and the pet 41 when the pet diaper 1 is worn, thereby reducing the discomfort of the pet 41 due to stuffiness.

[0043] The backsheet 3 is a strip-shaped rectangular sheet body with a longitudinal length that is the same as or approximately the same as that of the topsheet 2 and a width length that is the same as or longer than that of the topsheet 2. The topsheet 2 and the backsheet 3 are joined so that the edge of one longitudinal end 20 of the topsheet 2 overlaps with the edge of one longitudinal end 30 of the backsheet 3, and so that the edge of the other longitudinal end 21 of the topsheet 2 overlaps with the edge of the other longitudinal end 31 of the backsheet 3, and are formed into a single sheet body.

[0044] The backsheet 3 is laminated in the thickness direction of the topsheet 2 and joined to the topsheet 2. The backsheet 3 is bonded to the surface of the topsheet 2 facing the backsheet 3 and absorbent body 4 over almost the entire surface of the backsheet 3 facing the topsheet 2 and absorbent body 4, except for the portion where the absorbent body 4 is disposed. When the topsheet 2 and the backsheet 3 are bonded together, the longitudinal direction and thickness direction of the backsheet 3 coincide with the longitudinal direction and thickness direction of the topsheet 2, and the width direction of the backsheet 3 coincides with the width center of the topsheet 2.

[0045] Any known method can be used to bond the top sheet 2 and the back sheet 3. For example, the sheets 2 and 3 can be bonded together by applying pressure and heat using an industrial glue such as a hot melt adhesive. Examples of industrial glue that can be used include TN-269 (trade name), TN-255 (trade name), and TN-288 (trade name) manufactured by Moresco.

[0046] The absorbent body 4 is disposed between the topsheet 2 and the backsheet 3, approximately in the center in the longitudinal and width directions of the topsheet 2 and the waterproof sheet 5. It is rectangular, has liquid-absorbent properties, and has the function of retaining absorbed liquid. The absorbent body 4 is disposed approximately in the center in the longitudinal and width directions of the topsheet 2 and the backsheet 3.

[0047] The size and absorption capacity of the absorbent body 4 are determined appropriately depending on the size and type of pet 41 for which the pet diaper 1 is to be used, but it is sufficient that the size and absorption capacity are sufficient to sufficiently absorb and retain the pet's multiple urinations due to physiological phenomena and marking.

[0048] Any known absorbent material can be used for the absorbent body 4. The absorbent body 4 contains fluffed fibers, a water-absorbent polymer, and a deodorant. The fluffed fibers can be, for example, cotton-like pulp, which is made by agitating hydrophilic fibers cut into lengths of 1 mm to 10 mm. Since the absorbent body 4 is made of fluffed fibers, it has many voids between the fibers. This allows for efficient movement and absorption of liquid in both the planar and thickness directions.

[0049] The water-absorbent polymer is a polymeric absorbent that absorbs approximately 10 to 300 times its own weight in water and solidifies into a gel. Examples of water-absorbent polymers that can be used include antibacterial water-absorbent polymers and water-absorbent polymers that are liquid-permeable under load. An example of the antibacterial water-absorbent polymer is Sunfresh ST-900E (manufactured by San-Dia Polymer Co., Ltd.), and an example of a water-absorbent polymer that is liquid-permeable under load is Sunwet IM-930 (manufactured by San-Dia Polymer Co., Ltd.). Examples of water-absorbent polymers that can be used include high-performance water-absorbent polymers with antibacterial properties, which are made by electrically polymerizing an antibacterial agent and attaching it to a water-absorbent polymer such as sodium acrylate or potassium acrylate. The antibacterial properties of the water-absorbent polymer can suppress bacterial growth in the absorbent body 4.

[0050] The water-absorbing polymer is also uniformly dispersed within the absorbent body 4. With this configuration, urine excreted by the pet 41 can be efficiently absorbed and retained regardless of where the urine drips on the topsheet 2. Furthermore, by uniformly dispersing the deodorizing agent within the absorbent body 4, unpleasant odors such as ammonia odor can be prevented from leaking to the outside.

[0051] The longitudinal, width and thickness directions of the absorbent body 4 coincide with the longitudinal, width and thickness directions of the pet diaper 1, the topsheet 2 and the backsheet 3. The dimensions of the absorbent body 4 are determined appropriately depending on the size and type of pet 41 for which the pet diaper 1 is used, and as described above, it is sufficient that the absorbent body 4 has a size and absorption capacity that can sufficiently absorb and retain multiple urine excretions from the pet 41 due to physiological phenomena and marking.

[0052] The longitudinal lengths of the top sheet 2, back sheet 3 and waterproof sheet 5 (Figures 12 and 13) are, for example, the same, and the width directions of the back sheet 3 are the longest, followed by the waterproof sheet 5 and top sheet 2 in that order.

[0053] The absorbent body 4 is rectangular in shape and has a width shorter than that of the top sheet 2 and the back sheet 3, and a longitudinal length that is, for example, about 1 / 2 to about 3 / 4 of the length of the top sheet 2 and the back sheet 3, and is positioned approximately in the center of the top sheet 2 and the back sheet 3 in the longitudinal and width directions when viewed in a plane.

[0054] The bonding material 7 is provided on the inside of one longitudinal end 20 of the surface of the topsheet 2 opposite to the backsheet 3. As shown in FIG. 2, the length D20 from the one longitudinal end 20 to the bonding material 7 may be a length that makes it easy to put on the diaper 1. If the length D20 from the one longitudinal end 20 to the bonding material 7 is too long, problems may occur during putting on the diaper, such as the one longitudinal end 20 of the topsheet 2 being undesirably bonded to the bonding material 7. When the length of the bonding material 7 in the longitudinal direction Y is D7, the length D20 <D7であってもよい。

[0055] In the illustrated embodiment, the bonding material 7 is installed in the portion of the surface sheet 2 in the width direction that is exposed from the adhesive joint 10 of the side guard pieces 12 and the standing pieces 11, but in other embodiments, the bonding material 7 may be installed with its length extended in the width direction so as to overlap the adhesive joint 10. The bonding material 7 may also extend from the surface sheet 2 to the adhesive joints 10 on both sides in the width direction, and may be installed with its length extended in the width direction to between the surface sheet 2 and the standing pieces 11 at the adhesive joint 10, or between the standing pieces 11 and the side guard pieces 12 at the adhesive joint.

[0056] Fig. 4B is an enlarged cross-sectional view of a portion of another embodiment of the present invention taken along the line IV-IV in Fig. 2. In the embodiment of Fig. 4B, the bonding material 7 placed on the inner surface of the topsheet 2 (the upper surface side of Fig. 4B) extends across the entire width in the left-right direction of Fig. 4B and is sandwiched between the first sheet body 6 of the standing piece 11 at adhesive portions 10a, 10b. The bonding material 7 is thus formed by laminating and bonding the topsheet 2, the first sheet body 6 of the standing piece 11, the second sheet body 13 of the side guard piece 12, their overlapping portions 27, and further the overlapping portion 17 of the topsheet 2.

[0057] Fig. 4C is an enlarged cross-sectional view of a portion of yet another embodiment of the present invention taken along the section line IV-IV in Fig. 2. In the embodiment of Fig. 4C, the bonding material 7 placed on the inner surface side of the topsheet 2 (the upper surface side of Fig. 4C) extends across the entire width in the left-right width direction of Fig. 4C, and is laminated on the first sheet body 6 of the standing piece 11 and the second sheet body 13 of the side guard piece 12 at adhesive portions 10a, 10b.

[0058] Fig. 4D is an enlarged cross-sectional view of a portion of another embodiment of the present invention taken along the line IV-IV in Fig. 2. In the embodiment of Fig. 4D, the bonding material 7 provided on the inner surface of the topsheet 2 (the upper surface of Fig. 4D) extends partway along the width of the bonding portions 10a, 10b between the first sheet body 6 of the upright piece 11 and the overlapping portion 27 of the side guard piece 12, where the first sheet body 6 and the second sheet body 13 are laminated, and the bonding portions 10a, 10b are sandwiched together by adhesive. In yet another embodiment, the bonding material 7 of Fig. 4D may be formed to extend across the entire width of the bonding portions 10a, 10b.

[0059] 4E is an enlarged cross-sectional view of a portion of another embodiment of the present invention taken along the line IV-IV in FIG. 2. While similar to FIG. 4D, it should be noted that the entire width of the bonding material 7, which is laminated on the first sheet 6 of the upright piece 11, is covered and sandwiched by the overlapping portion 27 of the side guard piece 12. Therefore, the bonding material 7 is entirely covered by at least the side guard piece 12 at the adhesive joints 10a and 10b, as in FIG. 4A, and is not exposed toward the backsheet 3, and therefore is not bonded to the backsheet 3. Thus, the bonding material 7 is not bonded to the backsheet 3 at the adhesive joints 10a and 10b, and the bonding material 7 overlaps with the upright piece 11, the side guard piece 12, and the bonding material 7 at the adhesive joints 10a and 10b, improving strength and providing reinforcement. Therefore, even if the adhesive material 7 and the back sheet 3 are repeatedly attached and detached during use of the diaper 1, the inner sheet 2 to which the adhesive material 7 is attached, which has a relatively low strength, is not damaged, and the adhesive material 7 does not detach from the inner sheet 2 and the adhesive portions 10a, 10b, thereby improving the durability of the diaper 1.

[0060] The bonding material 7 may be formed to extend across the entire width of the adhesive portions 10a, 10b as shown in Figures 4B and 4C, or may be formed to extend partially to the middle of the width of the adhesive portions 10a, 10b as shown in Figures 4D and 4E.

[0061] As clearly shown in Figure 5, each standing piece 11 has a strip-shaped first sheet body 6 and first cords 8. Of the two upper and lower surfaces in the thickness direction of the topsheet 2 in Figure 5, each first sheet body 6 is provided along the longitudinal direction of the topsheet 2 in a position close to an end 22 in the width direction of the topsheet 2 above the upper surface in Figure 5 that does not contact the absorbent body 4 (i.e., the surface opposite in the thickness direction to the lower surface in Figure 5 that faces the backsheet 3 and contacts the absorbent body 4). The base end 14 of the standing piece 11 is formed by being joined to the upper surface in Figure 5 of the end 22 in the width direction of the topsheet 2. The free end 15 of the standing piece 11 wraps around and encloses, in a stretched state, the first cords 8 that exert elastic contractile force when the end in the width direction of the first sheet body 6 is folded back. In this way, the resiliently stretchable first cords 8 are arranged around the free ends 15 of the standing pieces 11, with the standing pieces 11 folded back and enclosed in a state in which they are tensioned, i.e., stretched, in the longitudinal direction relative to the topsheet 2 and the backsheet 3. Because the free ends 15 are resiliently stretchable, when the pet diaper 1 is put on, the contractile force of the first cords 8 causes the free ends 15 to contract more than the base ends 14, causing the standing pieces 11 to rise three-dimensionally as shown in Figures 1 and 5, and particularly as indicated by arrow B in Figure 6. The standing pieces 11 can be called three-dimensional gathers. The longitudinal and width directions of the standing pieces 11 and the side guard pieces 12 coincide with the longitudinal direction Y and width direction X of the topsheet 2 in Figures 2 and 3, in which the pet diaper 1 is laid out flat.

[0062] The standing pieces 11 may be made of a nonwoven fabric like the topsheet 2, or may be made of an impermeable sheet like the backsheet 3.

[0063] In this way, by having the standing pieces 11 stand up three-dimensionally, when putting the pet diaper 1 on a male dog, for example, the standing pieces 11 stand up so as to cover the urinary excretory organs from the front in the excretion direction, and the diaper can be put on so that the male dog's excretory organs are sandwiched between the standing pieces 11 and the topsheet 2. Therefore, the urethral opening of the excretory organ is covered by the standing pieces 11, so when the dog urinates from the urethral opening, the standing pieces 11 block the excreted urine, preventing it from leaking out in the direction of the urethral opening.

[0064] Furthermore, the urine blocked by the upstanding pieces 11 is guided along the upstanding pieces 11 to the absorber 4, thereby ensuring that the urine is absorbed by the absorber 4. The diaper 1 can also be used for female dogs.

[0065] The first cords 8 may be enclosed over the entire area in the longitudinal direction Y, including the adhesive portions 10, but it is sufficient that they are enclosed at least near the absorbent body 4. The elastic force of either or both of the first cords 8 and the second cords 9 may cause the absorbent body 4 to be curved in an imaginary plane including the longitudinal direction perpendicular to the paper surface of Figure 2, for example, to be concave like a bowl, making it easier to collect excreted urine.

[0066] Each side guard piece 12 includes a strip-shaped second sheet element 13 extending longitudinally of the topsheet 2 and a resiliently stretchable second cord 9 attached to the second sheet element 13 in a longitudinally tensed state. The second sheet element 13 is positioned widthwise outward of the pair of upstanding pieces 11 from both widthwise ends 23 of the backsheet 3. The sheet elements 13 are disposed longitudinally above the upstanding pieces 11 at a distance W12 from both widthwise ends 23 of the backsheet 3 in a direction approaching each other. Thus, the second sheet element 13 is configured such that the backsheet 3 extends widthwise inward from the base ends 18 of the side guard pieces 12, which are the one widthwise end 47 and the other widthwise end 48 of the diaper 1, as shown in Figures 2 to 5. The topsheet 2 disposed on the backsheet 3 partially extends widthwise from its widthwise end 22 near the base ends 18, as shown as overlapping portions 17. The second sheet body 13 also has the first sheet body 6 of the standing piece 11 extending over the overlapping portion 17 from the base end 18 to the free end 19 of the side guard piece 12. Therefore, the side guard piece 12 is formed by laminating and bonding the overlapping portion 17 where the top sheet 2 extends continuously to the second sheet body 13 from which the back sheet 3 extends, and another overlapping portion 27 where the first sheet body 6 of the standing piece 11 extends from the base end 18 to the free end 19 of the side guard piece 12.

[0067] The second sheet body 13 of the side guard piece 12 has a resiliently expandable cord 9 sandwiched and enclosed between the overlapping portion 27 in a longitudinally tensed state. The second cord 9 may be enclosed between the base end 18 and the free end 19 of the side guard piece 12, and may be, for example, provided on the outer side in the width direction, i.e., closer to the free end 19. The second cord 9 may be enclosed over the entire longitudinal direction Y, including the adhesive portion 10, but it is sufficient that it is enclosed at least near the absorbent body 4. The second cord 9 may be enclosed over the entire longitudinal direction Y, but it is sufficient that it is enclosed in a portion other than the adhesive portion 10. When the second cord 9 contracts, the second sheet body 13 contracts due to the contractile force, and gathers are formed along the longitudinal direction in the longitudinal center of the side guard piece 12.

[0068] The first sheet body 6 of the standing piece 11 and the second sheet body 13 of the side guard piece 12 are arranged, for example, extending over the entire length of both longitudinal end portions 20, 21. Each of the four corner areas 38a to 38d where the adhesive portion 10 can be provided is defined within a range defined by positions 34, 37 within a range of approximately 2 / 5 of the entire length in the longitudinal direction from both longitudinal end portions 20, 21, and by positions 34, 37 from both widthwise end portions 47, 48 to the inner widthwise ends 54, 55 where the standing piece 11 and side guard piece 12 overlap.

[0069] The adhesive portions 10 are formed at positions 34, 37 within a range of approximately two-fifths of the total length in the longitudinal direction from the both longitudinal ends 20, 21, for example, at both widthwise ends 47, 48 within a range from the both longitudinal ends 20, 21 to the vicinity of where the absorbent body 4 is placed, so that the standing pieces 11 and the side guard pieces 12 are overlapped on the topsheet 2 and adhered to the topsheet 2 to form the adhesive portions 10. In the adhesive portions 10, the standing pieces 11 and the side guard pieces 12 are folded back toward the topsheet 2 near the base ends 14 of the standing pieces 11 and the base ends 18 of the side guard pieces 12, and laminated and adhered to the topsheet 2, for example, in a planar manner, using a hot melt adhesive or the like. In one embodiment, for example, in the adhesive portion 10 at both widthwise ends within the range of lengths L1, L2 (Figures 2 and 3) from the longitudinal ends 20, 30; 21, 31 to the vicinity of the front longitudinal side where the absorbent body 4 is installed, the standing piece 11 and the side guard piece 12 are folded back toward the top sheet 2 near the base end 14 of the standing piece 11 and adhered to the top sheet 2.

[0070] According to one embodiment, the pet diaper 1 has adhesive sections 10 at the four corners of the diaper 1, whereby the upright pieces 11 and side guard pieces 12 are positioned overlapping on the topsheet 2 and are adhered to the topsheet 2 at the adhesive sections 10 at the four corners of the diaper 1. Therefore, the adhesive sections 10 at the four corners of the diaper 1 are relatively harder and less flexible than the remaining parts, and have a cored structure, so that they are less likely to bend or deform due to their own weight or external forces, and are, for example, approximately flat in their natural state.

[0071] When the diaper 1 having this configuration is fitted to the body 42 of a pet 41, the side guard pieces 12 and the upstanding pieces 11 do not separate outward from the topsheet 2 and backsheet 3, providing good adhesion. Furthermore, the wearer's fingers can easily grasp the hard adhesive portions 10, facilitating the work of fitting the pet diaper 1 to the body 42. Therefore, the upstanding pieces 11 and the side guard pieces 12 do not separate from the body 42 and float up and sway due to the movements of the pet 41. Therefore, the pet 41, which is flexible and capable of supple movement, will not bite the corners of the side guard pieces 12 and the upstanding pieces 11 with its mouth. This prevents the pet 41 from removing the diaper 1 from the body 42.

[0072] Furthermore, the adhesive portion 10 is harder and less likely to bend than the remaining portion, which more reliably prevents undesired bonding between the bonding material 7 and parts of the topsheet 2 and backsheet 3 that are separated from the bonding material 7 during the process of putting the diaper 1 on the pet 41. This also makes it easier to put the diaper 1 on the pet 41.

[0073] Referring to Figure 14 showing the pet diaper 1, each of the four corner areas 38a to 38d where the adhesive portion 10 can be provided is defined, as mentioned above, by positions 34, 37 within a range of, for example, approximately 2 / 5 of the total length in the longitudinal direction from both longitudinal ends 20, 21, and by the range from both widthwise ends 47, 48 to the inner widthwise ends 54, 55 where the upright piece 11 and side guard piece 12 overlap.

[0074] 14, the adhesive 10 is unnecessary and need not be attached within the short lengths L02 and L15 extending from both end portions 20 and 21 to positions 32 and 35 inward in the longitudinal direction, thereby preventing a pet 41 wearing the diaper 1 from biting parts of the side guard pieces 12 and the upstanding pieces 11 that extend outward in the longitudinal direction or width direction. The adhesive 10 may be formed in regions 38a to 38d over lengths L23 and L56 extending from positions 32 and 33 near the bonding material 7 along the longitudinal direction and corresponding positions 35 and 36. The adhesive 10 may also be formed over lengths L34 and L67 extending from positions 33 and 36 to the innermost positions 34 and 37 in the longitudinal direction, which are near both end portions 45 and 46 of the absorbent core 4. The innermost positions 34, 37 of the adhesive joint 10 in the longitudinal direction are selected to be positions within a range of, for example, about 2 / 5 of the total length in the longitudinal direction from both ends 20, 21 in the longitudinal direction.

[0075] The adhesive portion 10 may be provided in either or both of the regions 38a and 38c, or either or both of the regions 38b and 38d. When the pet diaper 1 is worn, the adhesive portion 10 is provided in the regions 38a and 38c that are located on the outer side of the body 42, and in this case, it does not have to be provided in the inner regions 38c and 38d that are on the body 42 side.

[0076] According to the concept of the present invention, the bonding within the bonding portion 10 may be within any one or more of the ranges of lengths L02, L23, and L34, or alternatively, may be within any one or more of the ranges of lengths L15, L56, and L67.

[0077] The first cords 8 of the upright pieces 11 and the second cords 9 of the side guard pieces 12 can be made of any known material that is elastically stretchable, such as thin rubber cords. Regarding the stretchability of the adhesive joints 10, the first cords 8 and second cords 9 may extend not only near the absorbent body 4 but also to both end portions 20, 30; 21, 31, giving the adhesive joints 10 elastic stretchability in the longitudinal direction.

[0078] In one embodiment of the diaper 1, the width direction is configured to be symmetrical in Figures 2 to 6 and 12 to 14, so that it can be easily put on a pet 41 without distinguishing between the front and rear directions of the head and tail (the left and right directions in Figures 2 to 6). The upstanding pieces 11 are provided on the topsheet 2, and therefore on both widthwise ends 47, 48 of the pet diaper 1. Therefore, regardless of which widthwise end 47, 48 is positioned on the pet's head side, the diaper can be put on so that the excretory organs of a male dog are covered and sandwiched between the upstanding piece 11 positioned on the head side and the topsheet 2 from the front in the excretion direction. Therefore, since the diaper can be put on in either direction, there is no need to check the orientation of the pet diaper 1 when putting it on the pet 41, making it easier to put on the pet 41.

[0079] In this way, the first cords 8 and the second cords 9 are stretched to exert a resilient contraction force only near the absorbent body 4 in the longitudinal direction Y, and may or may not be provided outside the absorbent body 4 in the longitudinal direction Y so as not to exert a resilient contraction force. In another embodiment, the first cords 8 and the second cords 9 may be stretched to exert a resilient contraction force over the entire length of the pet diaper 1 in the longitudinal direction Y, as described above. The adhesive portion 10 in this configuration is relatively harder and less flexible than the remaining portions due to the adhesive, and has a cored structure, so to speak, that makes it difficult to deform. This prevents the pet 41 from biting and pulling a portion near the longitudinal ends 20, 21 of the pet diaper 1, for example, a portion of the first sheet body 6 or the second sheet body 13 that protrudes outward, and thereby detaching the bond. Even if there is a protruding portion, the protruding length is small, and the object of the present invention can be achieved.

[0080] 7 is a side view showing the state in which the pet diaper 1 is put on the body 42 of the pet 41. The pet diaper 1 is wrapped around the body 42 of the pet 41 with the top sheet 2 facing the pet 41 and the longitudinal direction following the waist and hips of the pet 41, and the bonding material 7 is overlapped and bonded to the back sheet 3, thereby fixing the pet diaper 1 to the body 42 of the pet 41 and putting it on. When put on, the wrapping direction of the pet diaper 1 coincides with the direction following the waist of the pet 41.

[0081] When the pet diaper 1 is worn on the pet 41, the top sheet 2 faces the body 42 of the pet 41, and the area of ​​the top sheet 2 on the lower side of which the absorbent body 4 is arranged comes into contact with the abdomen of the pet 41, including the urinary excretory organs.

[0082] When attached to the pet 41, the standing piece 11 is curved and wrapped around the waist of the pet 41 together with the top sheet 2 and the back sheet 3, so that the first cord 8 enclosed in the free end 15 of the standing piece 11 contracts. Therefore, the standing piece 11 stands up three-dimensionally as shown by arrow B in Figure 6.

[0083] FIG. 8 is a perspective view showing the pet diaper 1 shown in FIGS. 1 to 7 folded in four and packed, and FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8. The bonding material 7 provided at one widthwise end 20 of the pet diaper 1 is detachably bonded to the outer surface of the portion of the backsheet 3 where the absorber 4 is located midway along the length. In this packed state, the bonding material 7 is not exposed to the outside. Therefore, it is not undesirably soiled by dust or other foreign matter, and the adhesive strength of the bonding material 7 is not reduced by dust or other foreign matter. Furthermore, when multiple pet diapers 1 are placed adjacent to each other or stacked and stored in a packing bag or the like, the bonding material 7 is not bonded to the backsheet 3 of other pet diapers 1, making it easy to handle each pet diaper 1 individually.

[0084] Fig. 10 is a perspective view showing the pet diaper 1 shown in Figs. 1 to 7 folded in thirds for packaging, and Fig. 11 is a cross-sectional view taken along the section line XI-XI in Fig. 10. The bonding material 7 provided at one widthwise end 20 of the pet diaper 1 is detachably bonded to the outer surface of the other longitudinal end 21 of the backsheet 3. In this packaging state, as in the packaging state in the embodiment shown in Figs. 8 and 9, the bonding material 7 is not exposed to the outside, so that it is not undesirably adhered with dust or soiled, and therefore the adhesive strength is not reduced. Furthermore, when multiple pet diapers 1 are placed adjacent to each other or stacked and stored in a packaging bag or the like, the bonding material 7 does not undesirably bond to each other, making it easy to handle each pet diaper 1 one by one.

[0085] Figure 12 is a cross-sectional view corresponding to the aforementioned Figure 4 in another embodiment of the present invention, and Figure 13 is a cross-sectional view corresponding to the aforementioned Figure 5 in another embodiment of the present invention. This embodiment is similar to the aforementioned embodiment, but what is noteworthy is that a waterproof sheet 5 is interposed between the back sheet 3 and the absorbent body 4, and between the top sheet 2 and the back sheet 3. The waterproof sheet 5 is a liquid-impermeable, flexible sheet, and for example, a resin sheet such as a polyethylene sheet is used.

[0086] The waterproof sheet 5 is a strip-shaped rectangular sheet body, the longitudinal length of which is the same as or approximately the same as the top sheet 2 and back sheet 3, and the width of which is the same as or shorter than the back sheet 3 and the same as or longer than the top sheet 2. The edges of the waterproof sheet 5 are bonded so as to overlap one longitudinal end 20 of the top sheet 2 and one longitudinal end 30 of the back sheet 3, and also to overlap the other longitudinal end 21 of the top sheet 2 and the other longitudinal end 31 of the back sheet 3.

[0087] In another embodiment of the pet diaper, the top sheet 2 and the back sheet 3 have both longitudinal ends 47, 48 formed in a drum shape with a narrow width near the longitudinal center, rather than being formed in a straight line perpendicular to the width direction. Even with this shape, the same effects as the pet diaper 1 described above can be achieved. Even with this shape, the same effects as the pet diaper 1 described above can be achieved, and are within the spirit of the present invention. Industrial application fields

[0088] Although the pet diapers 1 and 51 have been described as examples of use of the pet diaper 1, the use is not limited to pet diapers, and the pet diaper 1 can also be used as a covering material for covering and protecting wounds on pet animals or humans, such as heels and elbows.

[0089] When used on a wound, the medical pad is placed on the wound, secured with a medical film, and then the pet diaper 1 is secured on top of the pad. This securement allows for moisture conditioning of the wound and cushioning of shock to the wound. Furthermore, by securing the absorbent body 4 in a position that covers the wound, the absorbent body 4 can absorb body fluids leaking from the medical pad and medical film, as well as liquids such as medicines applied to the wound, preventing the liquid from staining the floor or other surfaces inside the room. Even if the position of the medical pad or absorbent body 4 is slightly shifted from the wound due to movement of the wound, the upright pieces 11, 6B prevent body fluids from leaking to the outside and direct the liquid to the absorbent body 4. Therefore, even when the wound is moved, the same prevention of body fluids from staining the floor or other surfaces inside the room can be achieved as when the wound is not moved. [Explanation of symbols]

[0090] 1 pet diaper 2 Surface sheet 3 Back sheet 4. Absorbent 5. Tarpaulin 6 First sheet body 7 Bonding material 8 First line 9 Second line 10 Adhesive part 11 Standing piece 12 Side guard piece 13 Second sheet body 18 Second proximal end 19 2nd free end 38a~38d area 41 Pets 42 Torso

Claims

1. A pet diaper that is wrapped around the pet's body and placed with the longitudinal direction as the wrapping direction, a top sheet that constitutes an inner surface layer and has liquid permeability; A back sheet constituting an outer surface layer; an absorbent body disposed between the top sheet and the back sheet and capable of absorbing liquid; A bonding material is provided at least in the middle of the width direction perpendicular to one end of the longitudinal direction of the top sheet, and is detachably bonded to the back sheet at the other end of the longitudinal direction; a pair of upstanding pieces each having a strip-shaped first sheet body extending on both sides in the width direction along the longitudinal direction of the top sheet, the first sheet body having a first base end connected to both ends in the width direction on a surface of the top sheet opposite to a surface facing the back sheet, the first base end connecting to first free end portions spaced apart by a first distance W12 in a direction approaching each other, and a pair of upstanding pieces each having a first cord that is resiliently stretchable and contractible and arranged in a longitudinally tensed state on the first sheet body; a pair of side guard pieces, each of which is a band-shaped second sheet body extending on both sides in the width direction along the longitudinal direction of the top sheet, and which extends from a second base end connected to both ends in the width direction of the back sheet to a second free end spaced apart at a second interval W12 in a direction approaching each other, and in which a second cord capable of elastically expanding and contracting is arranged in a longitudinally tensed state on the second sheet body; A pet diaper characterized in that it includes adhesive portions where the side guard pieces, the upstanding pieces, the top sheet and the back sheet are joined in at least one of two pairs of areas that face each other in the joined state by the bonding material, among the areas defined by positions within a range extending inward in the longitudinal direction from both longitudinal ends and the inner ends in the width direction where the upstanding pieces and side guard pieces overlap from both widthwise ends.

2. 2. The pet diaper according to claim 1, wherein the first cord is disposed at a free end of the upright piece.

3. 2. The pet diaper according to claim 1, further comprising a waterproof sheet interposed between the back sheet and the absorbent body.

4. A pet diaper according to any one of claims 1 to 4 is prepared, The pet diaper is wrapped around the pet's body with its longitudinal direction as the wrapping direction; The bonding material of the top sheet is detachably bonded to the back sheet, The method for putting on a pet diaper comprises pulling out at least one of the pair of side guard pieces for the pet so that the second cord of the one side guard piece is positioned outward in the width direction from the top sheet, and resiliently putting it on the body of the pet.

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