A pet diaper and its absorbent core

Abstract

The present invention relates to the field of disposable sanitary products for pets, and in particular to an absorbent core, which is applied to pet diapers. The absorbent core comprises a first absorbent part, a second absorbent part and a third absorbent part that cooperate with each other. The first absorbent part, the second absorbent part and the third absorbent part are stacked, the first absorbent part is arranged above the second absorbent part, and the third absorbent part is arranged below the second absorbent part. The second absorbent part is a plate-like structure, and the projection of the second absorbent part on the horizontal plane is a depression in the middle phase. Both the first absorbent part and the third absorbent part can change in shape as the state of the second absorbent part changes, thereby solving the technical problem that when pet diapers are used on pet dogs for outdoor walking, the diapers are tilted due to defecation, which may lead to incomplete absorption and side leakage. At the same time, a pet diaper using the absorbent core is proposed.

Description

Technical Field

[0001] The invention relates to the field of disposable sanitary products for pets, and in particular to a pet diaper and an absorbent core thereof. Background Art

[0002] Pet diapers are a type of sanitary product designed specifically for pets. They aim to help pet owners manage their pets' excretion problems and keep the home environment clean. However, pets are, after all, companions of humans. Some pets can go to the toilet independently in designated locations after training. At the same time, pet owners generally keep cats, dogs and other pets mainly to be able to "pet cats" and "pet dogs" to relieve stress after get off work. Therefore, it is inconvenient for pets to use diapers indoors. The main application scenario of pet diapers is still outdoors. When walking the dog outdoors, there is often the problem of urinating and defecating anywhere, causing inconvenience to others and polluting the community environment. If you can use special pet diapers when walking the dog outdoors, you can effectively avoid the problem of pets urinating and defecating anywhere outdoors.

[0003] The invention patent with Chinese patent application number 202180018931.2 discloses a pet diaper that is easy to insert the tail into the tail hole when wearing. The pet diaper has: a lateral direction arranged along the waist direction of the pet; a longitudinal direction; a main body having a surface sheet, a back sheet, and an absorbent core arranged between the surface sheet and the back sheet. The main body has: a tail hole having a hole main body through which the pet's tail can pass; and upright leak-proof pleats. The leak-proof pleats have: a standing portion that can stand up; and a lateral fixing portion located laterally outside the standing portion and serving as a standing fulcrum of the standing portion. The standing portion has a contraction portion, and the contraction portion is configured with a leak-proof elastic member that is in an extended state in the longitudinal direction. The tail hole is arranged at a position on the back side of the end edge of the back side of the absorbent core. The contraction portion is arranged across the area between the tail hole and the absorbent core. The technical solution proposed in the above invention mainly addresses the technical problem that the pet's tail is not well adapted to the diaper during use. However, despite the structural adaptation of the pet diaper to the pet's tail, the following problems still exist during use: pet dogs do not defecate naturally like human babies, and they do not know that they are wearing diapers. Instead, they will look for corners or tree roots as usual and lift one leg to defecate. At this time, the diaper is in a tilted state, which is very easy to cause side leakage due to incomplete absorption. Summary of the invention

[0004] Therefore, in order to solve the above problems, the present invention proposes a pet diaper and an absorbent core thereof, which solves the technical problem that when the pet dog is used for outdoor walking, the pet dog's defecation causes the diaper to be in a tilted state, which may lead to incomplete absorption and side leakage.

[0005] To achieve the above object, the present invention adopts the following technical scheme: an absorbent core, which is applied to pet diapers, the absorbent core comprises a first absorbent part, a second absorbent part and a third absorbent part which cooperate with each other, the first absorbent part, the second absorbent part and the third absorbent part are stacked, the first absorbent part is arranged above the second absorbent part, the third absorbent part is arranged below the second absorbent part, the second absorbent part is a plate-like structure, the projection of the second absorbent part on the horizontal plane is a structure in which the middle phase is concave, and the two ends extend to the two ends, and the first absorbent part and the third absorbent part can both change their shapes with the change of the state of the second absorbent part;

[0006] The first absorption part includes a plurality of first absorption rollers, and the third absorption part includes a plurality of third absorption rollers. The first absorption rollers and the third absorption rollers are the same in number. The first absorption rollers include a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. The third absorption rollers include a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. Both the first absorption rollers and the third absorption rollers are cylindrical structures. The first absorption rollers are closely arranged adjacent to each other, and the third absorption rollers are closely arranged adjacent to each other.

[0007] Furthermore, a first functional groove is provided on a side surface of the second absorption part close to the first absorption part, and a second functional groove is provided on a side surface of the second absorption part close to the third absorption part.

[0008] Furthermore, the first absorption part is arranged in the first functional groove, the third absorption part is arranged in the second functional groove, the first absorption part and the third absorption part have the same structure, and the structures of the first functional groove and the second functional groove are symmetrical with each other with the horizontal plane as the symmetry center.

[0009] Furthermore, the first functional groove and the second functional groove are arranged along the length direction of the second absorbing portion, and their vertical plane projections are close to each other in the middle and far away from each other at both ends.

[0010] Furthermore, a plurality of connecting grooves are provided on the second absorbing part, and each of the connecting grooves passes through the second absorbing part and connects the first functional groove and the second functional groove.

[0011] Furthermore, a first weight-gaining structure is provided in the first absorption drum, and a third weight-gaining structure is provided in the third absorption drum. Both the first weight-gaining structure and the third weight-gaining structure are wrapped with a highly water-absorbent resin. Both the first weight-gaining structure and the third weight-gaining structure have the same structure. Both the first weight-gaining structure and the third weight-gaining structure are soft elastic rubber strips.

[0012] Furthermore, the first absorption roller and the third absorption roller are connected by a fine yarn, and the fine yarn connects the first absorption roller and the third absorption roller respectively through the connecting groove. The first absorption roller and the third absorption roller are arranged symmetrically on both sides with the center of the first functional groove and the second functional groove as the central axis. In an original state, the first absorption roller and the third absorption roller are stacked and arranged in the center of the first functional groove and the second functional groove respectively. When the second absorption part is tilted, the first absorption roller rolls to one side of the first functional groove, and the third absorption roller rolls to one side of the second functional groove.

[0013] Furthermore, the centers of the first functional groove and the second functional groove are defined as the near point, and the two ends of the first functional groove and the second functional groove in the length direction are defined as the far points; the first absorption roller and the third absorption roller are connected by winding with the fine yarn in such a way that the far point is used as the starting point, and the fine yarn connects one end of the first absorption roller away from the near point and one end of the third absorption roller away from the near point, and then rolls and winds toward the near point.

[0014] A pet diaper comprises a diaper body, wherein the diaper body comprises a liquid-permeable surface layer, an intermediate placement layer and a liquid-impermeable bottom layer, wherein the absorbent core is placed in the intermediate placement layer, wherein the diaper body is provided with a through hole for the pet's tail to extend out, wherein the through hole passes through the diaper body, wherein the diaper body is provided with a retractable elastic surround for controlling the aperture at the edge of the through hole, wherein the intermediate placement layer comprises an upper placement layer and a lower placement layer, wherein the upper placement layer and the lower placement layer wrap the absorbent core in an upper and lower stacking manner and press and fix the absorbent core around the through hole by hot pressing.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are:

[0016] 1. Compared with the existing diapers used for pets, the present invention is more suitable for use by pet dogs through the structural improvement of the diaper body and the structural improvement of the absorbent core, especially the adaptive adjustment for the toileting method of the pet dog, which improves the adaptability of multiple scenes when walking the dog outdoors. Specifically, the absorbent core is different from the previous overall design, but adopts the first absorbent part, the second absorbent part and the third absorbent part which are used independently and in combination, wherein the second absorbent part is used as the main load-bearing part, and the first absorbent part and the third absorbent part are symmetrically arranged on both sides of the second absorbent part. At the same time, the second absorbent core of the present invention is different from the previous overall design, and the first absorbent part and the third absorbent part are used in combination. The receiving part is provided with a space for accommodating the first absorption part and the third absorption part, which ensures that when the second absorption part tilts during use, the first absorption part and the third absorption part will tilt synchronously along the tilting direction. When the second absorption part tilts, it is likely that the pet dog needs to go to the toilet. This structure ensures that as long as the pet dog needs to lift its legs to go to the toilet, the first absorption part and the second absorption part will definitely tilt to distribute the structure of the absorption core as a whole, so that the first absorption part and the second absorption part quickly move toward the side with a large liquid output to ensure complete absorption of the pet dog's urine and avoid side leakage.

[0017] 2. The second hand washing part in the present invention is provided with a first functional groove and a second functional groove on its upper and lower side surfaces respectively, wherein the structures of the first functional groove and the second functional groove are symmetrical to each other and the structure presented is a structure in which the vertical plane projection is close to each other in the middle and far away from each other at both ends. In simple terms, the vertical section of the first functional groove and the second functional groove is a conical structure with two pointed parts at the top, and the structure can ensure that the first absorption part and the third absorption part are smoother when they are tilted and moved on the first functional groove and the second functional groove.

[0018] 3. In the present invention, a connecting groove is provided on the second absorption part. The connecting groove can, on the one hand, help improve the air permeability of the absorption core, and on the other hand, provide a connection space for the later connection between the first absorption part and the third absorption part.

[0019] 4. The first absorption part in the present invention includes several first absorption rollers, and the third absorption part includes several third absorption rollers. The cylindrical roller structure can reduce the resistance encountered by the two when experiencing tilted rolling and facilitate displacement. At the same time, the first absorption roller in the present invention is provided with a first weight-increasing structure, and the third absorption roller is provided with a third weight-increasing structure. The functions of the first weight-increasing structure and the third weight-increasing structure are the same, that is, to increase the self-gravity of the first absorption roller and the third absorption roller respectively, and also to ensure that when the second absorption part is tilted, the two can be better displaced under their own gravity and the tilted state of the second absorption part.

[0020] 5. The first weight-increasing structural member and the third weight-increasing structural member in the present invention both adopt soft elastic rubber strips. By adopting the soft elastic rubber strips, the non-water-absorbing property of the soft elastic rubber strips after contact with the liquid can ensure the integrity of the shape. The role of the complete shape, on the one hand, enables it to continue to play the original weight-increasing function, and on the other hand, it can assist the first absorption roller and the third absorption roller in maintaining their shape, thereby avoiding the first absorption roller and the third absorption roller from having an unsmooth displacement process due to excessive changes in their own shape during the process of tilting and displacement.

[0021] 6. The first absorption roller and the third absorption roller in the present invention are connected by fine yarn through a connecting groove, and the advantages are reflected in the following two aspects. First, after the two are connected by the fine yarn, the linkage between the two is stronger when they are displaced, ensuring that the two can move in the same direction together with the inclination of the second absorption part, and at the same time, the two can also pull each other, thereby improving the efficiency of displacement. Second, the connection method between the two by the fine yarn is that the fine yarn is connected with the far point as the starting point, and the fine yarn connects the end of the first absorption roller away from the near point and the end of the third absorption roller away from the near point, and then rolls and wraps in the direction of the near point. This ensures that under the action of the fine yarn, the first absorption roller and the third absorption roller, no matter in what state, close to the center or displaced to the two ends, are always respectively attached to the first functional groove and the second functional groove under the traction of the fine yarn, and no movement confusion occurs. The principle is that the fine yarn will entangle the first absorption roller and the third absorption roller with the rolling action of the first absorption roller and the third absorption roller, thereby improving the fit and tightness of the connection between the two.

[0022] 7. The pet diaper proposed simultaneously in the present invention has a structure that is adapted to the above-mentioned absorbent core on the one hand, and on the other hand, a stretchable elastic surround is provided on the through hole for the pet's tail to extend, thereby ensuring that it can adapt to the tail diameters of different pets. The stretchable elastic surround can tightly surround the pet to prevent side leakage, and the middle placement layer wraps the absorbent core by stacking it up and down, and at the same time, the edges are non-heat pressed, which can ensure that the absorbent core will not be displaced during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the absorbent core in the present invention;

[0025] Figure 2 The side structure of the absorbent core of the present invention is cut away in perspective (along the center line in the length direction);

[0026] Figure 3 The side structure of the absorbent core of the present invention is cut away in perspective (along the length direction through the connecting groove);

[0027] Figure 4 It is a schematic diagram of the top view structure of the absorbent core in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the first absorption roller in the present invention;

[0029] Figure 6 It is a cross-sectional view of the internal structure of the first absorption drum in the present invention;

[0030] Figure 7 This is a diagram showing the movement of the first absorbing part and the second absorbing part after the second absorbing part is tilted in the present invention (from a far point to a near point);

[0031] Figure 8 This is a diagram showing the movement of the first absorbing part and the second absorbing part after the second absorbing part is tilted in the present invention (from the near point to the far point);

[0032] Fig. 9 Schematic diagram of the top view of the diaper body of the present invention (the dotted line represents the absorbent core). DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] See also Figure 1-Figure 9 The present invention provides an absorbent core, which is applied to pet diapers. The absorbent core 1 includes a first absorbent part 3, a second absorbent part 2 and a third absorbent part 4 that cooperate with each other. The first absorbent part 3, the second absorbent part 2 and the third absorbent part 4 are stacked. The first absorbent part 3 is arranged above the second absorbent part 2, and the third absorbent part 4 is arranged below the second absorbent part 2. The second absorbent part 2 is a plate-like structure. The projection of the second absorbent part 2 on the horizontal plane is a structure in which the middle phase is concave, and both ends extend to both ends. The first absorbent part 3 and the third absorbent part 4 can both change their shapes as the state of the second absorbent part 2 changes. The specific change in shape is to follow the inclination of the second absorbent part 2 and move in the direction of its inclination.

[0035] A first functional groove 21 is provided on one side surface of the second absorption part 2 close to the first absorption part 3, and a second functional groove 22 is provided on one side surface of the second absorption part 2 close to the third absorption part 4, the first absorption part 3 is provided in the first functional groove 21, and the third absorption part 4 is provided in the second functional groove 22, the first absorption part 3 and the third absorption part 4 have the same structure, the structures of the first functional groove 21 and the second functional groove 22 are symmetrical with each other with the horizontal plane as the symmetry center, the first functional groove 21 and the second functional groove 22 are provided along the length direction of the second absorption part 2, and the vertical plane projections of the two present a structure that is close to each other in the middle and far away from each other at both ends, presenting a V-shaped structure with opposite sharp angles, and two connecting grooves 23 are provided on the second absorption part 2, each of the connecting grooves 23 passes through the second absorption part 2 and connects the first functional groove 21 and the second functional groove 22.

[0036] The first absorption part 3 includes 15 first absorption rollers, and the third absorption part 4 includes 15 third absorption rollers. The first absorption rollers and the third absorption rollers are the same in number. The first absorption roller includes a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. The third absorption roller includes a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. The first absorption roller and the third absorption roller are both cylindrical structures. The first absorption rollers are closely arranged adjacent to each other, and the third absorption rollers are closely arranged adjacent to each other. A first weight-increasing structure 31 is arranged in the first absorption roller, and a third weight-increasing structure is arranged in the third absorption roller. The first weight-increasing structure 31 and the third weight-increasing structure are both wrapped with super absorbent resin. The first weight-increasing structure 31 and the third weight-increasing structure have the same structure, so the structure diagram of the third weight-increasing structure is not repeated. Refer to Figure 6 The first weight-increasing structural component 31 and the third weight-increasing structural component are both soft elastic rubber strips.

[0037] The first absorption roller and the third absorption roller are connected by a fine yarn 7, and the fine yarn 7 connects the first absorption roller and the third absorption roller respectively through the connecting groove 23. The first absorption roller and the third absorption roller are arranged in a symmetrical manner on both sides with the center of the first functional groove 21 and the second functional groove 22 as the central axis. In the original state, the first absorption roller and the third absorption roller are stacked and arranged in the center of the first functional groove 21 and the second functional groove 22 respectively. When the second absorption part 2 is tilted, the first absorption roller rolls to one side of the first functional groove 21, and the third absorption roller rolls to one side of the second functional groove 22. During the rolling process of the two, the fine yarn pulls the two and rolls and wraps around the outer circumferential side of the two to ensure that the rolling process of the two is synchronized and close to the first functional groove 21 and the second functional groove 22 respectively.

[0038] The centers of the first functional groove 21 and the second functional groove 22 are defined as the near point 25, and the two ends of the first functional groove 21 and the second functional groove 22 in the length direction are defined as the far points 24; the first absorption roller and the third absorption roller are connected by winding with the fine yarn 7, with the far point 24 as the starting point, and the fine yarn 7 connects one end of the first absorption roller away from the near point 25 and one end of the third absorption roller away from the near point 25, and then rolls and winds toward the near point 25.

[0039] The first absorption roller and the third absorption roller activity status and principle reference Figure 7 and Figure 8 .

[0040] The present invention simultaneously proposes a pet diaper using the above-mentioned absorbent core 1, a pet diaper comprising a diaper body 5, the diaper body 5 comprising a liquid-permeable surface layer, an intermediate placement layer and a liquid-impermeable bottom layer, the absorbent core 1 being placed in the intermediate placement layer, the diaper body 5 being provided with a through hole 6 for the pet's tail to extend out, the through hole 6 penetrating the diaper body 5, the diaper body 5 being provided with a retractable elastic surround 61 for controlling the aperture at the edge of the through hole 6, the intermediate placement layer comprising an upper placement layer and a lower placement layer, the upper placement layer and the lower placement layer being stacked up and down to wrap the absorbent core 1 and hot-pressing to press and fix the absorbent core 1 around it, wherein the layered structure of the diaper body is a well-known structure in the field of disposable sanitary products, which will not be elaborated herein and is not shown in the drawings.

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An absorbent core, which is used in pet diapers, characterized in that: The absorbent core comprises a first absorbent part, a second absorbent part and a third absorbent part which cooperate with each other, the first absorbent part, the second absorbent part and the third absorbent part are stacked, the first absorbent part is arranged above the second absorbent part, the third absorbent part is arranged below the second absorbent part, the second absorbent part is a plate-like structure, the projection of the second absorbent part on the horizontal plane is a structure in which the middle phase is concave, and the two ends extend to the two ends, and the first absorbent part and the third absorbent part can both change their shapes along with the state change of the second absorbent part; The first absorption part includes a plurality of first absorption rollers, and the third absorption part includes a plurality of third absorption rollers. The first absorption rollers and the third absorption rollers are the same in number. The first absorption rollers include a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. The third absorption rollers include a non-woven fabric surface layer and a super absorbent resin filled in the non-woven fabric surface layer. Both the first absorption rollers and the third absorption rollers are cylindrical structures. The first absorption rollers are closely arranged adjacent to each other, and the third absorption rollers are closely arranged adjacent to each other.

2. An absorbent core according to claim 1, characterized in that: A first functional groove is disposed on a side surface of the second absorption part close to the first absorption part, and a second functional groove is disposed on a side surface of the second absorption part close to the third absorption part.

3. An absorbent core according to claim 2, characterized in that: The first absorption part is arranged in the first functional groove, and the third absorption part is arranged in the second functional groove. The first absorption part and the third absorption part have the same structure, and the structures of the first functional groove and the second functional groove are symmetrical with each other with the horizontal plane as the symmetry center.

4. An absorbent core according to claim 3, characterized in that: The first functional groove and the second functional groove are arranged along the length direction of the second absorbing portion, and their vertical plane projections are close to each other in the middle and far away from each other at both ends.

5. An absorbent core according to claim 4, characterized in that: The second absorption part is provided with a plurality of communication grooves, each of which passes through the second absorption part and connects the first functional groove and the second functional groove.

6. An absorbent core according to claim 5, characterized in that: A first weight-gaining structure is arranged in the first absorption drum, and a third weight-gaining structure is arranged in the third absorption drum, and the structures are the same. The first weight-gaining structure and the third weight-gaining structure are both wrapped with highly absorbent resin, and the first weight-gaining structure and the third weight-gaining structure are both soft elastic rubber strips.

7. An absorbent core according to claim 6, characterized in that: The first absorption roller and the third absorption roller are connected by fine yarn, and the fine yarn is connected to the first absorption roller and the third absorption roller respectively through the connecting groove. The first absorption roller and the third absorption roller are arranged symmetrically on both sides with the center of the first functional groove and the second functional groove as the central axis. In the original state, the first absorption roller and the third absorption roller are stacked and arranged in the center of the first functional groove and the second functional groove respectively. When the second absorption part is tilted, the first absorption roller rolls to one side of the first functional groove, and the third absorption roller rolls to one side of the second functional groove.

8. An absorbent core according to claim 7, characterized in that: The centers of the first functional groove and the second functional groove are defined as the near point, and the two ends of the first functional groove and the second functional groove in the length direction are defined as the far points; the first absorption roller and the third absorption roller are connected by winding with the fine yarn in such a way that the far point is used as the starting point, the fine yarn connects one end of the first absorption roller away from the near point and one end of the third absorption roller away from the near point, and then rolls and winds toward the near point.

9. A pet diaper, using an absorbent core as claimed in claim 8, characterized in that: The invention comprises a diaper body, wherein the diaper body comprises a liquid-permeable surface layer, an intermediate placement layer and a liquid-impermeable bottom layer, wherein the absorbent core is placed in the intermediate placement layer, wherein a through hole for a pet's tail to extend out is arranged on the diaper body, wherein the through hole passes through the diaper body, and wherein a retractable elastic surround for controlling the aperture is arranged at the edge of the through hole on the diaper body, wherein the intermediate placement layer comprises an upper placement layer and a lower placement layer, wherein the upper placement layer and the lower placement layer wrap the absorbent core in an upper and lower stacking manner and press and fix the absorbent core around the through hole by hot pressing.

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