Multi-section type bubble partition edge absorption article

Abstract

The utility model relates to the field of disposable hygienic products, in particular to a multi-section type bubble partition edge absorption article which comprises a liquid-permeable surface layer, an absorption core layer and a liquid-tight bottom layer which are arranged in a stacked mode, and the absorption article has the characteristics that the length direction is the Y direction, and the width direction is the X direction. Two leakage-proof partition edges extending in the Y direction are symmetrically distributed in the X direction of the liquid-permeable surface layer in a central symmetry mode, each leakage-proof partition edge comprises a water-repellent material layer distributed in the Y direction and a plurality of strip-shaped elastic bodies distributed on the water-repellent material layer, and the water-repellent material layer is provided with at least two bonding parts extending in the X direction and used for fixing the strip-shaped elastic bodies. When the strip-shaped elastic body retracts, the anti-leakage partition edges between the bonding parts form a bubble cavity with the hollow interior. According to the technical scheme, the problem that an existing partition edge structure is insufficient in softness is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a disposable sanitary product field, concretely relates to a multi -section type bubble edge separation absorbing article. BACKGROUND

[0002] The existing disposable sanitary products, taking paper diapers as an example, the basic structure is mostly that the upper surface layer, the lower surface breathable and liquid-impermeable bottom layer and the absorbing body sandwiched between the two, and the absorbing body is the main liquid absorbing component. Under this traditional structure, in order to avoid side leakage when wearing, a lengthwise extending leakage prevention edge structure is usually arranged on the surface layer on both sides of the absorbing body. The basis of this leakage prevention structure is to wrap the elastic member with a liquid barrier material, so that the paper diaper stands up when worn due to the contraction of the elastic member, forming a vertical barrier structure. However, since the elastic member is usually of a larger denier, it often causes friction or marks at the leg root of the baby when wearing, resulting in insufficient comfort. In order to alleviate this situation, a structure is designed on the market, as shown in the Chinese patent with the authorization announcement number CN 219423149U, a bubble three-dimensional edge absorbing article, with the side that fits the human body when worn as the inner side, and the side away from the human body as the outer side, the absorbing body and the absorbing outer layer are sequentially arranged from the inner side to the outer side, the bubble three-dimensional edge is symmetrically arranged on both sides of the absorbing body in the width direction of the absorbing body and located on the inner side of the absorbing outer layer, the bubble three-dimensional edge on any side is composed of a folded layered water-repellent non-woven fabric to form an edge main body, the outer surface of the edge main body away from the other side of the absorbing body is connected with the absorbing outer layer; the edge main body clamps a breathable layer, one side surface of the breathable layer is connected with one side of the edge main body, and the other side is connected with the other side of the edge main body through at least 3 discontinuously distributed strip-shaped elastic bodies after stretching, the length of the strip-shaped elastic body is equal to that of the breathable layer, and at least 2 bubble cavities are enclosed between the edge main body, the strip-shaped elastic body and the breathable layer.

[0003] Under this structure, a breathable layer structure is added to form so-called bubble cavities with the retraction of the elastic member to improve the softness of the edge. However, due to the addition of a layer of material, the thickness of the original edge increases, which limits the improvement of softness, and the increase in thickness also leads to a decrease in breathability. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides a multi -section type bubble edge separation absorbing article, which solves the problem of insufficient softness of the existing edge structure.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0006] A multi-section bubble side leakage absorbing article, comprising a liquid permeable surface layer, an absorbent core layer and a liquid impermeable bottom layer arranged in a stack, the absorbing article has a length direction Y and a width direction X, the liquid permeable surface layer is symmetrically arranged with two leakage prevention side edges extending along the Y direction, each of the leakage prevention side edges comprises a water repellent material layer distributed along the Y direction, a plurality of strip-shaped elastic bodies arranged on the water repellent material layer, the water repellent material layer is folded along the X direction to form a carrying end for carrying the strip-shaped elastic bodies and a wrapping end for wrapping each of the strip-shaped elastic bodies, and at least two adhesive parts extending along the X direction are arranged on the water repellent material layer to fix each of the strip-shaped elastic bodies, when the strip-shaped elastic bodies retract, the leakage prevention side edge between each of the adhesive parts forms a bubble cavity with an internal cavity.

[0007] Preferably, the adhesive part is 2-5.

[0008] Preferably, the adhesive part is two, respectively located on both sides of the Y direction symmetry center of the absorbing article.

[0009] Preferably, each of the adhesive parts is not fixed with the wrapping end.

[0010] Preferably, the Y direction size of each of the adhesive parts is 3-6 mm.

[0011] Preferably, the strip-shaped elastic body is 4-10.

[0012] By adopting the foregoing technical scheme, the beneficial effects of the utility model are:

[0013] The adhesive part arranged on the leakage prevention side edge along the X direction in the technical scheme makes the water repellent material layer at the position of the adhesive part adhere to the elastic body and retract, and the water repellent material layer between the adhesive parts is affected by the contraction force of the two ends of the adhesive parts, so that the retraction amplitude is large, and a bubble side leakage structure with a larger internal cavity is formed.

[0014] Unlike the complete glue application of the traditional leakage prevention side edge, under this structure, the leakage prevention side edge between the adhesive parts is not constrained, thereby obtaining a larger contraction effect, so that the water repellent material layer at this position forms a bubble cavity with a strip-shaped structure distributed in an interval along the Y direction, which has a more comfortable softness compared with the traditional bubble side leakage, and still adopts a single-layer water repellent material layer structure, thereby retaining the thickness of the current leakage prevention side edge structure to avoid the decrease of air permeability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the absorbing article stretched and unfolded in the embodiment of the utility model;

[0016] Figure 2 It is Figure 1 It is a structure schematic view of the leakage prevention side edge when worn in the A-A direction.

[0017] Figure 3 For Figure 1 Another structure of the leakage-proof barrier when wearing in A-A direction is shown in the figure.

[0018] Figure 4 For the forming process of the leakage-proof barrier of the embodiment of the utility model is shown in the figure.

[0019] Figure 5 For the structure of the glue applying mechanism of the embodiment of the utility model is shown in the figure.

[0020] Figure 6 For the plane structure of the glue applying block is shown in the figure.

[0021] Reference signs: 100, liquid-permeable top sheet; 200, absorbent core; 300, liquid-impermeable back sheet; 400, leakage-proof barrier; 400a, fixed end; 401, water repellent material layer; 401a, bearing end; 401b, wrapping end; 402, strip-shaped elastic body; 403, adhesive part; 404, bubble cavity; 405, non-adhesive section; 1, glue tank; 2, glue roller; 21, glue applying block; 211, short side; 212, long side; 213, thorn needle; 214, groove; 3, compression roller. DETAILED DESCRIPTION

[0022] The embodiment of the utility model will be described in detail below in combination with specific embodiments, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0023] EMBODIMENT

[0024] Reference Figure 1 And Figure 2 A multi-section bubble barrier absorbent article, comprising a liquid-permeable top sheet 100, an absorbent core 200 and a liquid-impermeable back sheet 300 arranged in layers, the absorbent article has a length direction Y and a width direction X, the liquid-permeable top sheet 100 is symmetrically arranged with two leakage-proof barriers 400 extending along the Y direction at the center of the X direction, and the two leakage-proof barriers 400 are fixed on the liquid-permeable top sheet 100 and form fixed ends 400a extending along the longitudinal direction; each of the leakage-proof barriers 400 comprises a water repellent material layer 401 distributed along the Y direction, and a plurality of strip-shaped elastic bodies 402 arranged on the water repellent material layer 401, wherein the strip-shaped elastic bodies 402 are 4-10; preferably, a plurality of fine denier spandex filaments are selected to obtain a more uniform elastic distribution and improve the softness of the leakage-proof barrier 400 as a whole.

[0025] The water-repellent material layer 401 is folded along the X direction to form a carrying end 401a for carrying the strip-shaped elastic body 402 and a wrapping end 401b for wrapping each strip-shaped elastic body 402; here, the carrying end 401a refers to the carrying area of the water-repellent material layer 401 when the strip-shaped elastic body 402 is applied; similarly, the wrapping end 401b refers to the folding of the water-repellent material layer 401 by folding equipment such as a folding plate to wrap the strip-shaped elastic body 402 after the strip-shaped elastic body 402 is applied.

[0026] The water-repellent material layer 401 is provided with at least two adhesive portions 403 extending along the X direction for fixing each strip-shaped elastic body 402, and when the strip-shaped elastic body 402 is retracted, the leak-proof barrier 400 between each adhesive portion 403 forms an internally hollow bubble cavity 404. Among them, the adhesive portion 403 adopts partial glue application on the water-repellent material layer 401 to form a required adhesive interval, and then the strip-shaped elastic body 402 is applied at the corresponding position; and since the longitudinal two side ends of the leak-proof barrier 400 need to be bonded with the absorbent article, the retraction amount of the two longitudinal ends will be smaller, as shown in Figure 2 、 Figure 3 ;

[0027] The adhesive portion 403 extending along the X direction provided on the leak-proof barrier 400 makes the water-repellent material layer 401 at the position of the adhesive portion 403 adhere to the elastic body and retract, and the part of the water-repellent material layer 401 between each adhesive portion 403 is affected by the contraction force of the two end adhesive portions 403, and the retraction amplitude is large, forming a bubble barrier structure with a larger internal cavity; unlike the complete glue application of the traditional leak-proof barrier 400, under this structure, the part of the leak-proof barrier 400 between each adhesive portion 403 is not constrained, thereby obtaining a larger contraction effect, so that the water-repellent material layer 401 at this position forms a bubble cavity 404 with an interval distribution of strip-shaped structures extending along the Y direction. Compared with the traditional bubble barrier, it has more comfortable softness, and still uses a single layer of water-repellent material layer 401 structure, which retains the thickness of the current leak-proof barrier 400 structure to avoid the decline of air permeability.

[0028] In terms of structure, the adhesive portion 403 can be 2-5. When a plurality (for example, 5, as shown in Figure 3 ) are used, the number of strip-shaped bubble cavities 404 formed is larger to form a flexible structure at multiple positions; in terms of structure, limited by the production process and the characteristics of the adhesive, the Y direction size of each adhesive portion 403 is 3-6 mm to ensure the adhesion effect and not to affect the comfort of the adhesive portion 403 position due to the size being too large.

[0029] Correspondingly, when the adhesive part 403 is two, it needs to be located on both sides of the Y direction symmetry center of the absorbent article respectively; the strip-shaped bubble cavity 404 formed is located at the crotch position of the absorbent article when worn, thereby ensuring the anti-pulling and anti-friction effect of the barrier edge.

[0030] A preparation method of a multi-section bubble barrier edge absorbent article, referring to Figures 4 to 6 , comprising the following steps:

[0031] S1, taking the water-repellent material layer 401 along the assembly line for conveying;

[0032] S2, interval local gluing is performed on the water-repellent material layer 401 by a gluing mechanism to obtain interval distributed adhesive parts 403 and non-adhesive sections 405; in structure, the gluing mechanism comprises a glue tank 1, a gluing roller 2 and its pressure roller 3 installed above the glue tank 1 for gluing, and a plurality of guide rollers for guiding the water-repellent material layer 401, the gluing roller 2 comprises a plurality of gluing blocks 21 (only one is shown) protruding from the surface of the gluing roller 2 and distributed at equal intervals, the surface of the gluing block 21 is in the shape of "L", which comprises a short side 211 for gluing the position of the adhesive part 403 and a long side 212 for wrapping the edge of the bearing end 401a and the carrying end 401b; wherein the gluing block 21 receives glue in the glue tank 1, and in the conveying process of the water-repellent material, the pressure roller 3 is matched to form continuous local L-shaped gluing of the assembly line; Figure 4

[0033] S3, arranging strip-shaped elastomers 402 on the water-repellent material layer 401 in step S2, and each strip-shaped elastomer 402 is in a stretched state;

[0034] S4, folding the water-repellent material layer 401 with strip-shaped elastomers 402 arranged thereon to form a wrapping end 401b, so that each strip-shaped elastomer 402 is wrapped inside;

[0035] S5, hot pressing the product obtained in step S4 by a hot pressing roller 3 group to fix the strip-shaped elastomers 402 at the position of the adhesive part 403 and the water-repellent material layer 401 to each other;

[0036] S6, repeating the above steps S1-S5 to obtain the barrier edge on the other side;

[0037] S7, taking the liquid-permeable surface layer 100, the absorbent core layer 200 and the liquid-impermeable bottom layer 300 materials respectively for assembly line conveying, and arranging the two barrier edges obtained in the above steps S1-S6 on the liquid-permeable surface layer 100;

[0038] S8, laminating and compounding the two barrier edges, the liquid-permeable surface layer 100, the absorbent core layer 200 and the liquid-impermeable bottom layer 300 materials, and then continuing to convey after being fixedly connected into one body; ​

[0039] S9, cutting the product obtained in step S8 to obtain single absorbent articles.

[0040] Structurally, the long side 212 is provided with dot matrix needles 213 for positioning. The needles 213 are two rows, which can ensure that the waterproof material layer 401 does not deviate due to glue during the transfer process when applying glue, avoiding the situation that the glue is not applied in place.

[0041] At the same time, the surface of the glue applying block 21 is provided with grooves 214 for facilitating the distribution of glue; the grooves 214 have a certain depth, which ensures that the surface of the glue applying block 21 has enough glue to be continuously applied in a pipeline without interruption, ensuring the stability of the amount of glue.

[0042] In production, the structure of the bonding part 403 is different from the traditional one, and a non-conventional glue applying mechanism of glue groove 1 and glue applying roller 2 is designed. The waterproof material layer 401 at the position of the bonding part 403 is densely retracted due to the retraction of the strip-shaped elastomer 402, and the wrapped end 401b and the bearing end 401a of the waterproof material layer 401 at the position not bonded are bonded and sealed, and the remaining part does not form a solid connection with the strip-shaped elastomer 402, so that a corresponding internal hollow bubble cavity 404 structure is formed. When designing the production process, the bonding part 403 and the traditional separation edge sealing are obtained by one-time glue applying, which simplifies the production equipment, reduces the production difficulty, and improves the production efficiency.

[0043] In the technical solution, each bonding part 403 can not be solidly connected with the wrapped end 401b; in this way, the lower end of the formed bubble cavity 404 is an open structure, which can further increase the retraction amount at this position and improve the softness.

[0044] Although the present utility model is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that without departing from the spirit and scope of the present utility model defined in the appended claims.

Claims

1. A multi-section bubble-edge absorbent article comprising a stacked liquid-permeable surface layer (100), an absorbent core layer (200), and a liquid-impermeable bottom layer (300), wherein the absorbent article has a length direction in the Y direction and a width direction in the X direction, and is characterized in that: The liquid-permeable surface layer (100) is symmetrically provided with two leak-proof partitions (400) extending along the Y direction along the X direction. Each of the leak-proof partitions (400) comprises a water-repellent material layer (401) distributed along the Y direction and a plurality of strip-shaped elastic bodies (402) arranged on the water-repellent material layer (401). The water-repellent material layer (401) is folded along the X direction to form a carrying end (401a) for carrying the strip-shaped elastic bodies (402) and a wrapping end (401b) for wrapping each of the strip-shaped elastic bodies (402). The water-repellent material layer (401) is provided with at least two adhesive portions (403) extending along the X direction for fixing each of the strip-shaped elastic bodies (402). When the strip-shaped elastic bodies (402) retract, the leak-proof partitions (400) between the adhesive portions (403) form an internal hollow bubble cavity (404).

2. The multi-segmented bubble-edge absorbent article according to claim 1, characterized in that: The number of the bonding parts (403) is 2-5.

3. The multi-segmented bubble-edge absorbent article according to claim 2, characterized in that: There are two bonding parts (403), which are respectively located on both sides of the Y-axis symmetry center of the absorbent article.

4. A multi-segmented bubble-edge absorbent article according to claim 1, 2 or 3, characterized in that: Each of the bonding portions (403) is not fixedly connected to the wrapping end (401b).

5. A multi-segmented bubble-edge absorbent article according to claim 1, 2 or 3, characterized in that: The dimension of each bonding portion (403) along the Y direction is 3-6 mm.

6. A multi-segmented bubble-edge absorbent article according to claim 1, 2 or 3, characterized in that: There are 4 to 10 strip-shaped elastic bodies (402).

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