Multi-layer absorptive article structure and manufacturing method thereof

Abstract

The invention discloses a multi-layer absorptive article structure and a manufacturing method thereof, and the multi-layer absorptive article structure comprises a first monomer absorptive article, a second monomer absorptive article, a third monomer absorptive article and a fourth monomer absorptive article, the second monomer absorptive article and the first monomer absorptive article are bonded into a whole through a first bonding structure. By means of the structure, one-time carrying of a plurality of absorbent articles is achieved.

Description

Technical Field

[0001] This application relates to the technical field of absorbent articles, and particularly to a multi-layer absorbent article structure and a manufacturing method thereof. Background Art

[0002] A single absorbent article is composed of multiple layers of materials with different functions and is fixed at the position where absorption is required through adhesive bonding. After use, it needs to be removed from the fixed position during use and discarded. For replacement, a new one needs to be taken, the outer wrapping material is separated, and then it is fixed at the position where absorption is required through adhesive bonding. Each time after using one piece, a new one needs to be taken and the previous operation needs to be repeated.

[0003] When going out, multiple absorbent articles must be carried to prevent having no absorbent article for replacement when needed. This way of carrying is very inconvenient. Summary of the Invention

[0004] The main technical problem to be solved by this application is to provide a multi-layer absorbent article structure and a manufacturing method thereof, so as to achieve the one-time carrying of multiple absorbent articles and realize the convenience of replacement.

[0005] This application provides a multi-layer absorbent article structure, wherein the multi-layer absorbent article structure includes: a first single absorbent article; a second single absorbent article, which is bonded to the first single absorbent article as a whole through a first adhesion structure.

[0006] Wherein, the first adhesion structure is one of hot melt adhesive and hot embossing structure.

[0007] Wherein, the structures of the first single absorbent article and the second single absorbent article are the same.

[0008] Wherein, the first single absorbent article includes a leak-proof bottom film and a liquid-permeable surface layer bonded to the leak-proof bottom film.

[0009] Wherein, the liquid-permeable surface layer and the leak-proof bottom film are fixed together through a second adhesion structure.

[0010] Wherein, the adhesiveness of the first adhesion structure is less than that of the second adhesion structure.

[0011] Wherein, the first single absorbent article sequentially includes: a leak-proof bottom film, an absorbent core layer disposed on the surface of the leak-proof bottom film, a second liquid-permeable layer disposed on the surface of the absorbent core layer, a liquid-permeable surface layer disposed on the surface of the second liquid-permeable layer, and two liquid-repellent surface layers disposed on the surface of the liquid-permeable surface layer.

[0012] Among them, the multi-layer absorbent article structure further includes: a third monomer absorbent article disposed on a side of the second monomer absorbent article away from the first monomer absorbent article, and fixedly connected to the second monomer absorbent article through the first adhesion structure.

[0013] The present application also provides a method for manufacturing a multi-layer absorbent article structure, wherein the manufacturing method includes: separately manufacturing a plurality of monomer absorbent articles; sequentially stacking and placing the plurality of monomer absorbent articles, and fixing them together through the first adhesion structure.

[0014] Among them, the step of sequentially stacking and placing the plurality of monomer absorbent articles and fixing them together through the first adhesion structure includes: disposing the first adhesion structure on the same side of the plurality of monomer absorbent articles; stacking and placing the plurality of monomer absorbent articles, and fixing the plurality of monomer absorbent articles together by pressing.

[0015] Among them, the step of sequentially stacking and placing the plurality of monomer absorbent articles and fixing them together through the first adhesion structure includes: stacking and placing the plurality of monomer absorbent articles; performing a pressing process on the stacked plurality of monomer absorbent articles by using a hot pressing roller to fix the plurality of monomer absorbent articles together.

[0016] The beneficial effects of the present application are: by stacking a plurality of monomer absorbent articles and bonding them together through the first adhesion structure, and by combining two or more monomer absorbent articles for use, when in use, the upper-layer monomer absorbent article can be directly torn off, and then the lower-layer monomer absorbent article can be continued to be used, without the need to frequently replace with a new absorbent article, greatly improving the simplicity and maintaining cleanliness and hygiene; at the same time, it also reduces the process of repeatedly pasting during the replacement of the absorbent article, saves the replacement time, and meets the needs of a fast-paced life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the multi-layer absorbent article structure provided by the present application;

[0019] Figure 2 It is a schematic structural diagram of the first specific embodiment of the multi-layer absorbent article structure provided by the present application;

[0020] Figure 3Partial structural schematic diagram of the first specific embodiment of the multi-layer absorbent article structure provided by this application;

[0021] Figure 4 Structural schematic diagram of the second specific embodiment of the multi-layer absorbent article structure provided by this application;

[0022] Figure 5 Structural schematic diagram of the second embodiment of the multi-layer absorbent article structure provided by this application;

[0023] Figure 6 Flow schematic diagram of an embodiment of the manufacturing method of the multi-layer absorbent article structure provided by this application. Detailed implementation manners

[0024] The following combines the accompanying drawings of the specification to elaborate in detail on the solutions of the embodiments of this application.

[0025] In the following description, for the purpose of illustration rather than limitation, the described embodiments are only some embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0026] This application provides a multi-layer absorbent article structure. Specifically, please refer to Figure 1 , Figure 1 Structural schematic diagram of the first embodiment of the multi-layer absorbent article structure provided by this application. As shown in Figure 1 , the multi-layer absorbent article structure includes at least: a first single absorbent article 10 and a second single absorbent article 20. Among them, the first single absorbent article 10 and the second single absorbent article 20 are bonded together through a first adhesion structure 101. Among them, the first adhesion structure 101 is a separable adhesive.

[0027] In a specific embodiment, the first adhesion structure 101 is one of a hot melt adhesive and a hot embossing structure. The hot embossing structure includes embossing and / or dotting.

[0028] Among them, the first adhesion structure 101 can lose its adhesiveness under an external force, so as to separate the first single absorbent article 10 and the second single absorbent article 20.

[0029] In a specific embodiment, the structures of the first single absorbent article 10 and the second single absorbent article 20 are the same. In other specific embodiments, the structures of the first single absorbent article 10 and the second single absorbent article 20 can also be different.

[0030] In the first specific embodiment, the first single absorbent article 10 includes a leak-proof bottom film 11 and a liquid-permeable surface layer 12. Further, please refer toFigure 2 , Figure 2 is a schematic structural view of the first specific embodiment of the multi-layer absorbent article structure provided by this application. As Figure 2 shown, wherein, the leak-proof bottom film 11 and the liquid-permeable surface layer 12 are fixed together by the second adhesion structure 102. Among them, the second adhesion structure 102 includes one of hot melt adhesive and hot embossing structure. The hot embossing structure includes through embossing and / or embossing dots, or non-through embossing and / or embossing dots.

[0031] It should be noted that the structure of the second monomer absorbent article 20 is the same as that of the first monomer absorbent article 10, that is to say, the second monomer absorbent article 20 also includes a leak-proof bottom film 11 and a liquid-permeable surface layer 12, and the leak-proof bottom film 11 and the liquid-permeable surface layer 12 in the second monomer absorbent article 20 are also adhered together by the second adhesion structure 102.

[0032] Preferably, the adhesiveness of the first adhesion structure 101 is less than that of the second adhesion structure 102. That is, the adhesion force of the first adhesion structure 101 for adhering the first monomer absorbent article 10 and the second monomer absorbent article 20 is less than the adhesion force of the second adhesion structure 102 for adhering the leak-proof bottom film 11 and the liquid-permeable surface layer 12.

[0033] Specifically, the liquid-permeable surface layer 12 is disposed on the surface of the leak-proof bottom film 11.

[0034] In a specific embodiment, the second monomer absorbent article 20 is disposed above the first monomer absorbent article 10. The leak-proof bottom film 11 of the second monomer absorbent article 20 is adhesively fixed to the liquid-permeable surface layer 12 of the first monomer absorbent article 10 through the first adhesion structure 101.

[0035] Among them, the adhesiveness of the first adhesion structure 101 is less than that of the second adhesion structure 102. In a specific embodiment, both the first adhesion structure 101 and the second adhesion structure 102 are hot melt adhesives. The application amount of the first adhesion structure 101 is less than that of the second adhesion structure 102, so that the adhesiveness of the first adhesion structure 101 is less than that of the second adhesion structure 102, and further when the first monomer absorbent article 10 and the second monomer absorbent article 20 are separated, the leak-proof bottom film 11 and the liquid-permeable surface layer 12 will not be separated. In other embodiments, the first adhesion structure 101 and the second adhesion structure 102 may not be the same kind of glue, and this is not limited herein.

[0036] In a specific embodiment, the first adhesion structure 101 is adhered to the leak-proof bottom film 11 of the second monomer absorbent article 20, and then the second monomer absorbent article 20 is stacked on the surface of the first monomer absorbent article 10 and pressed, so as to combine the first monomer absorbent article 10 and the second monomer absorbent article 20 together.

[0037] It should be noted that adhesiveness, also known as adhesive force, is an important indicator for evaluating the difficulty of separating two adhered objects.

[0038] In another specific embodiment, both the first adhesion structure 101 and the second adhesion structure 102 are hot embossing structures. Among them, the number of embossing structures or embossing points of the first adhesion structure 101 is less than that of the second adhesion structure 102.

[0039] Specifically, the first single-piece absorbent article 10 and the second single-piece absorbent article 20 are fixedly joined together by hot pressing through a first hot pressing roller with temperature. Among them, the surface of the first hot pressing roller is provided with a plurality of raised embossing or embossing point patterns. The leak-proof bottom film 11 and the liquid-permeable surface layer 12 in the first single-piece absorbent article 10 and the second single-piece absorbent article 20 are fixedly joined together by hot pressing through a second hot pressing roller with temperature. Among them, the surface of the second hot pressing roller is provided with a plurality of raised embossing or embossing point patterns. In a specific embodiment, the number of embossing or embossing points provided on the surface of the first hot pressing roller is less than the number of embossing or embossing points provided on the surface of the second hot pressing roller, so that the bonding force between the first single-piece absorbent article 10 and the second single-piece absorbent article 20 is less than the bonding force between the leak-proof bottom film 11 and the liquid-permeable surface layer 12 in the first single-piece absorbent article 10 and the second single-piece absorbent article 20, so that when the first single-piece absorbent article 10 and the second single-piece absorbent article 20 are separated, the leak-proof bottom film 11 and the liquid-permeable surface layer 12 will not be separated.

[0040] Furthermore, a separation part is also provided on the first single-piece absorbent article 10 and / or the second single-piece absorbent article 20. In a specific embodiment, the first adhesion structure 101 is not provided at the position of the separation part of the first single-piece absorbent article 10 and the second single-piece absorbent article 20, so as to facilitate separation at the position of the separation part. Among them, the separation part is provided at the edge position of the first single-piece absorbent article 10 and / or the second single-piece absorbent article 20. Preferably, the separation part is provided at both ends of the first single-piece absorbent article 10 and / or the second single-piece absorbent article 20. For details, reference can be made to Figure 3 , Figure 3 which is a partial structural schematic diagram of the first specific embodiment of the multi-layer absorbent article structure provided by this application. As Figure 3 shown, the separation part is provided at both ends of the long side of the first single-piece absorbent article 10 and / or the second single-piece absorbent article 20.

[0041] When both the first adhesion structure 101 and the second adhesion structure 102 are hot melt adhesives or other glues, the first adhesion structure 101 can be coated at the central position of the second single absorbent article 20, and the first adhesion structure 101 is not coated at the edge position, so that the coating amount of the first adhesion structure 101 is less than that of the second adhesion structure 102.

[0042] When the first adhesion structure 101 and the second adhesion structure 102 are hot embossing structures, the first hot pressing roller can only perform hot embossing treatment on the central positions of the first single absorbent article 10 and the second single absorbent article 20, or raised embossing or pressing points are provided at the central position of the first hot pressing roller. Thus, when hot embossing the first single absorbent article 10 and the second single absorbent article 20, the central positions of the first single absorbent article 10 and the second single absorbent article 20 are joined together through embossing or pressing points, and the edge positions of the first single absorbent article 10 and the second single absorbent article 20 are joined together through ordinary embossing, so that the bonding force at the edge of the first single absorbent article 10 and the second single absorbent article 20 is lower than the bonding force at the central position of the first single absorbent article 10 and the second single absorbent article 20, thereby facilitating separation.

[0043] In this embodiment, the bonding strength between the first single absorbent article 10 and the second single absorbent article 20 is enhanced through embossing or pressing point patterns to prevent delamination and displacement between the first single absorbent article 10 and the second single absorbent article 20 during wearing.

[0044] Among them, the first single absorbent article 10 and the second single absorbent article 20 are stacked and combined, without increasing the width in the horizontal direction, only increasing the thickness in the vertical direction. In other words, the second single absorbent article 20 is stacked on the surface of the first single absorbent article 10 and does not exceed the surface of the first single absorbent article 10. The first single absorbent article 10 and the second single absorbent article 20 are adhesively bonded together in the stacking direction through the first adhesion structure 101.

[0045] In the second specific embodiment, the first single absorbent article 10 sequentially includes a leak-proof bottom film 11, an absorbent core layer 13, a second liquid-permeable layer 14, a liquid-permeable surface layer 12, and two side water-repellent layers 15. Specifically, please refer to Figure 4 , Figure 4 which is a schematic structural diagram of the second specific embodiment of the multi-layer absorbent article structure provided by this application. As Figure 4As shown, the absorbent core layer 13 is disposed on the surface of the leak-proof bottom film 11 and fixed by the second adhesion structure 102. The second liquid-permeable layer 14 is disposed on the surface of the absorbent core layer 13 and fixed by the second adhesion structure 102. The liquid-permeable surface layer 12 is disposed on the surface of the second liquid-permeable layer 14 and fixed by the second adhesion structure 102. The two side liquid-repellent surface layers 15 are disposed on the surface of the liquid-permeable surface layer 12 and fixed by the second adhesion structure 102.

[0046] In one embodiment, the size of the leak-proof bottom film 11 is larger than the sizes of the absorbent core layer 13, the second liquid-permeable layer 14, and the liquid-permeable surface layer 12. Among them, the absorbent core layer 13, the second liquid-permeable layer 14, and the liquid-permeable surface layer 12 are sequentially stacked at the central position of the leak-proof bottom film 11. The two side liquid-repellent surface layers 15 include two, which are respectively disposed at both sides of the leak-proof bottom film 11 and adhered together by the second adhesion structure 102. Among them, the two side liquid-repellent surface layers 15 and the liquid-permeable surface layer 12 partially overlap in the stacking direction, and the two side liquid-repellent surface layers 15 and the liquid-permeable surface layer 12 are also adhesively fixed at the overlapping positions by the second adhesion structure 102.

[0047] Among them, the structure of the second monomer absorbent article 20 is the same as that of the first monomer absorbent article 10, and the second monomer absorbent article 20 and the first monomer absorbent article 10 are fixedly connected by the first adhesion structure 101.

[0048] In one embodiment, the multi-layer absorbent article structure is a two-layer absorbent article structure, that is, it includes the first monomer absorbent article 10 and the second monomer absorbent article 20. In other embodiments, the multi-layer absorbent article structure is a three-layer absorbent article structure, including the first monomer absorbent article 10, the second monomer absorbent article 20, and the third monomer absorbent article 30. For details, please refer to Figure 5 , Figure 5 which is a schematic structural diagram of the second embodiment of the multi-layer absorbent article structure provided by the present application.

[0049] It should be noted that the absorbent article in this embodiment is not limited to sanitary napkins, and can also be absorbent articles such as diapers, nursing pads, and nursing mats.

[0050] The present application also provides a manufacturing method for a multi-layer absorbent article structure. For details, please refer to Figure 6 , Figure 6 which is a schematic flow diagram of an embodiment of the manufacturing method for the multi-layer absorbent article structure provided by the present application. As Figure 6 shown, the manufacturing method for the multi-layer absorbent article structure includes:

[0051] Step S61: Manufacture multiple monomer absorbent articles respectively.

[0052] In the first specific embodiment, the liquid-permeable surface layer is bonded to the leakage-proof bottom film layer through a hot melt adhesive process to form a single unitary absorbent article.

[0053] In the second specific embodiment, first, the two side water-repellent surface layers are laminated with the liquid-permeable surface layer through a hot melt adhesive process to form Component One; the surface of Component One with the liquid-permeable surface layer facing down is laminated with the second liquid-permeable layer through a hot melt adhesive process to form Component Two; the surface of Component Two with the second liquid-permeable layer facing down is laminated with the absorbent core layer through a hot melt adhesive process to form Component Three; the surface of Component Three with the absorbent core layer facing down is laminated with the leakage-proof bottom film layer through a hot melt adhesive process to form Component Four, thereby forming a single unitary absorbent article. In this embodiment, each film layer is combined in sequence from top to bottom to form a unitary absorbent article. In other embodiments, each film layer can also be combined in sequence from bottom to top, which is not limited herein.

[0054] Step S62: Stack a plurality of unitary absorbent articles in sequence and fix them together through a first adhesion structure.

[0055] In a specific embodiment, this step specifically includes: setting a first adhesion structure on the same side of a plurality of unitary absorbent articles; stacking a plurality of unitary absorbent articles and pressing them to fix the plurality of unitary absorbent articles together. Specifically, a first adhesion structure is set on the surface of the leakage-proof bottom film side of a plurality of unitary absorbent articles, then a plurality of unitary absorbent articles are stacked and pressed to bond the plurality of unitary absorbent articles together.

[0056] In another specific embodiment, this step specifically includes: stacking a plurality of unitary absorbent articles; using a hot pressing roller to perform a pressing process on the stacked plurality of unitary absorbent articles to fix the plurality of unitary absorbent articles together. Among them, the plurality of unitary absorbent articles are fixed together through embossing and / or dotting.

[0057] The beneficial effects of the present application are: by stacking a plurality of unitary absorbent articles and bonding them together through a first adhesion structure, by combining two or more unitary absorbent articles for use, when in use, the upper unitary absorbent article can be directly torn off and the lower unitary absorbent article can be continued to be used, without the need to frequently replace with a new absorbent article, greatly improving the simplicity and maintaining cleanliness and hygiene; at the same time, it can also reduce the process of repeatedly pasting during the replacement of the absorbent article, save the replacement time, and meet the needs of a fast-paced life.

[0058] The above is only the embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or the simple recombination of method steps, or the direct or indirect application in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A multi-layer absorbent article structure, characterized in that, The multi-layer absorbent article structure includes: A first single absorbent article; A second single absorbent article, which is adhered to the first single absorbent article as a whole through a first adhesion structure.

2. The multi-layer absorbent article structure according to claim 1, wherein The first adhesion structure is one of hot melt adhesive and hot embossing structure.

3. The multi-layer absorbent article structure according to claim 1, wherein The structures of the first single absorbent article and the second single absorbent article are the same.

4. The multi-layer absorbent article structure according to claim 3, wherein The first single absorbent article includes a leak-proof bottom film and a liquid-permeable surface layer adhered to the leak-proof bottom film.

5. The multi-layer absorbent article structure according to claim 4, wherein The liquid-permeable surface layer and the leak-proof bottom film are fixed together through a second adhesion structure.

6. The multi-layer absorbent article structure according to claim 5, wherein The adhesiveness of the first adhesion structure is less than that of the second adhesion structure.

7. The multi-layer absorbent article structure according to claim 2, wherein The first single absorbent article sequentially includes: a leak-proof bottom film, an absorbent core layer disposed on the surface of the leak-proof bottom film, a second liquid-permeable layer disposed on the surface of the absorbent core layer, a liquid-permeable surface layer disposed on the surface of the second liquid-permeable layer, and two side liquid-repellent layers disposed on the surface of the liquid-permeable surface layer.

8. The multi-layer absorbent article structure according to claim 1, characterized in that, The multi-layer absorbent article structure further includes: A third single absorbent article, which is disposed on the side of the second single absorbent article away from the first single absorbent article and is fixedly connected to the second single absorbent article through the first adhesion structure.

9. A method for manufacturing a multi-layer absorbent article structure, characterized in that, The manufacturing method includes: Manufacturing multiple single absorbent articles respectively; Stacking multiple single absorbent articles in sequence and fixing them together through a first adhesion structure.

10. The method for manufacturing a multi-layer absorbent article structure according to claim 9, characterized in that, The step of stacking multiple single absorbent articles in sequence and fixing them together through a first adhesion structure includes: Setting the first adhesion structure on the same side of multiple single absorbent articles; Stacking multiple single absorbent articles and fixing them together by pressing.

11. The method for manufacturing a multi-layer absorbent article structure according to claim 9, characterized in that, The step of stacking multiple single absorbent articles in sequence and fixing them together through a first adhesion structure includes: Stacking multiple single absorbent articles; Performing a pressing process on the stacked multiple single absorbent articles by using a hot pressing roller to fix the multiple single absorbent articles together.

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