Absorption article distributed in multiple elastic intervals

By arranging a multi-level elastic structure in the waist area, waist crotch area and crotch of the absorbent article, the problem of insufficient support of the absorbent core layer after absorbing liquid is solved, and the overall support and structural stability of the absorbent article are improved.

CN223453413UActive Publication Date: 2025-10-21CHIAUS FUJIAN IND DEV
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Patent Information

Application Number
CN202422563096.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-10-21
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

After the existing absorbent articles are provided with elastic structures at the waist and leg circumferences, local bulges are easily formed after absorbing liquid and expanding, resulting in insufficient support for the absorbent core layer and easy breakage.

Method used

A multi-level elastic structure is set in the waist area, waist crotch area and crotch position of the absorbent article. The waist area is horizontally elastic and the crotch area is longitudinally elastic. By connecting the elastic sheets in each area, an overall elastic support is formed to enhance the support of the absorbent core layer.

Benefits of technology

Through the design of multi-level elastic structure, the overall support and structural stability of the absorbent article after absorbing liquid are improved, the breakage of the absorbent core layer is avoided, and the functional options of the product are increased.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of disposable hygienic products, in particular to an absorption article distributed in multiple elastic intervals, which solves the problem that the existing absorption article is insufficient in overall supporting performance for an absorption core body after absorbing liquid, and comprises a liquid-permeable surface layer, the absorption core body and a liquid-tight bottom layer which are arranged in a stacked manner, the length direction of the absorption article is defined as the longitudinal direction, the width direction of the absorption article is defined as the transverse direction, the center of the absorption article is a crotch part, the two longitudinal ends of the absorption article are waist areas, a waist crotch area is arranged between the crotch part and the waist areas, leg circumference rubber bands are arranged on the two sides of the center of the absorption article, a waist circumference part is arranged at the waist areas, and a waist crotch elastic sheet is arranged in the waist crotch area. A waist-crotch elastic sheet is arranged at the waist part, a crotch-area elastic sheet is arranged at the crotch part, the elastic force direction of the waist-crotch elastic sheet extends in the transverse direction, and the elastic force direction of the crotch-area elastic sheet extends in the longitudinal direction.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a disposable sanitary article field, concretely relates to a multi-elasticity interval distribution's absorbent article. BACKGROUND

[0002] At present, the disposable sanitary article mostly includes the face layer, the absorbent core layer and the bottom layer which are arranged in layers, and in order to make the absorbent core layer in place, it is necessary to ensure the fit of the whole absorbent article, for example, a paper diaper usually needs to be provided with a waist elastic band at the waist and a leg elastic band at the leg, so as to meet the requirement, that is, as shown in the technical solution of Chinese patent CN 101068519 B, a short pants type disposable diaper is provided with a waist elastic band and a bending elastic band between the outer cover (i.e. the face layer and the bottom layer), so as to obtain the structure fixation at the waist and the thigh, and then ensure the fit.

[0003] However, under the existing structure, only the elastic structure is formed at the waist and the leg, and the non-covered part is in a non-elastic state, after the absorbent core layer absorbs liquid and swells, a local protrusion is easily formed, and the local support deficiency is prone to cause the fracture of the absorbent core layer. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides a multi-elasticity interval distribution's absorbent article, and solves the problem of insufficient overall support of the absorbent core after absorbing liquid in the current absorbent article.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0006] A multi-elasticity interval distribution's absorbent article, including the liquid-permeable face layer, the absorbent core and the impermeable bottom layer which are arranged in layers, defining the length direction of the absorbent article as the longitudinal direction, the width direction as the transverse direction, the center of the absorbent article as the crotch part, the two ends of the longitudinal direction as the waist area, the crotch part and the waist area as the waist-crotch area, the leg elastic band being arranged on both sides of the center of the absorbent article, the waist part being arranged at the waist area, the waist-crotch elastic sheet being arranged at the waist-crotch area, the crotch area elastic sheet being arranged at the crotch part, the elastic direction of the waist-crotch elastic sheet extending along the transverse direction, and the elastic direction of the crotch area elastic sheet extending along the longitudinal direction.

[0007] Preferably, the waist part, the waist-crotch elastic sheet and the crotch area elastic sheet are connected with each other.

[0008] Preferably, the waist part includes the inner waist part layer close to the inner side and the outer waist part layer close to the outer side, the inner waist part layer extending from the longitudinal end of the absorbent article to the waist area, the outer waist part layer extending from the longitudinal end of the absorbent article to the waist-crotch area, and the waist-crotch elastic sheet being connected to the outer waist part layer.

[0009] Preferably, the inner waistline layer is a fine denier elastic nonwoven fabric.

[0010] Preferably, the crotch elastic sheet is connected with the two side leg elastic rubbers.

[0011] By adopting the foregoing technical scheme, the utility model has the beneficial effects that:

[0012] The technical scheme designs an elastic structure with multiple levels formed along the longitudinal direction of the absorbent article, and each elastic interval can obtain different elastic force sizes and directions according to the selection of the sheet, that is, the waistline part at the waist is a transverse elastic force, and the crotch elastic sheet at the crotch position is selected to have a longitudinal elastic force direction according to the length direction of the absorbent core layer, thereby obtaining overall elastic support for the absorbent core body and ensuring the support property of the absorbent core layer after liquid absorption; on the structure, the sheet at the waist, crotch and crotch position can be flexibly selected, thereby increasing the functional selection items of the product, and with the progress of material science, the utility model has very good and broad application prospects. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Fig. 1 is a schematic diagram of the unfolded structure of the absorbent article of the utility model embodiment one;

[0014] Figure 2 Fig. 2 is a schematic diagram of the laminated structure of the absorbent article of the utility model embodiment one (A-A direction);

[0015] Figure 3 Fig. 3 is a schematic diagram of the laminated structure of the absorbent article of the utility model embodiment two.

[0016] Fig. 1 is a schematic diagram of the unfolded structure of the absorbent article of the utility model embodiment one; DETAILED DESCRIPTION

[0017] The implementation manner 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 the technical problems and achieve the technical effects of the utility model can be fully understood and implemented.

[0018] Embodiment one

[0019] Reference Figure 1 and Figure 2The application discloses a multi-elasticity-interval distributed absorbent article, which comprises a liquid-permeable surface layer 100, an absorbent core 200 and a liquid-impermeable bottom layer 300 arranged in layers, wherein the length direction of the absorbent article is defined as the longitudinal direction, the width direction is defined as the transverse direction, the center of the absorbent article is defined as the crotch part b, the two ends of the longitudinal direction are respectively defined as the waist area a, and the waist-crotch area c is between the crotch part b and the waist area a; the leg-surrounding elastic rubber 400 is arranged on both sides of the center of the absorbent article; the waist-surrounding part 1 is arranged at the waist area a; the waist-crotch elastic sheet 2 is arranged at the waist-crotch area c; the crotch-area elastic sheet 3 is arranged at the crotch part b; the elastic force direction of the waist-crotch elastic sheet 2 extends along the transverse direction; and the elastic force direction of the crotch-area elastic sheet 3 extends along the longitudinal direction.

[0020] In order to increase the integrity of the absorbent article, the waist-surrounding part 1, the waist-crotch elastic sheet 2 and the crotch-area elastic sheet 3 are connected with each other in the structure; the connection herein refers to that there is a certain overlapping part in the longitudinal direction, as shown in the figure. Figure 2

[0021] In the embodiment, the crotch-area elastic sheet 3 is connected with the leg-surrounding elastic rubber 400 on both sides in the structure of the conventional absorbent article; the crotch-area elastic sheet 3 is matched with the leg-surrounding elastic rubber 400 on both sides in the longitudinal elastic structure of the crotch-area elastic sheet 3; and the absorbent core 200 at the crotch part b is more completely supported, and the structure stability after absorbing liquid is stronger.

[0022] Embodiment two

[0023] Reference Figure 3 Compared with the embodiment one, the waist-surrounding part 1 comprises the inner waist-surrounding layer 11 close to the inner side and the outer waist-surrounding layer 12 close to the outer side; the inner waist-surrounding layer 11 extends from the longitudinal end of the absorbent article to the waist area a; the outer waist-surrounding layer 12 extends from the longitudinal end of the absorbent article to the waist-crotch area c; and the waist-crotch elastic sheet 2 is connected to the outer waist-surrounding layer 12. The outer waist-surrounding layer 12 can be selected to be a non-elastic sheet to increase the thickness and softness, or can be selected to be an elastic sheet to adjust the overall elastic force of the waist-surrounding part 1; for example, a mesh cloth material with hollows in the inside can be selected to ensure the air permeability in the structure with increased thickness.

[0024] ​Structurally, the inner waist circumference layer 11 is a fine denier elastic non-woven fabric. The fine denier elastic non-woven fabric is made by fixing a large number of fine denier elastic threads on one or two base fabrics, which is well known to those skilled in the art, and the specific selection of the related model is not limited herein. Compared with the traditional elastic waist circumference, it is softer and has better air permeability.

[0025] Under this structure, the waist circumference part 1 has the softness and air permeability of the fine denier elastic non-woven fabric, and can be thickened to some extent through the design of the outer waist circumference layer 12, so that the waist circumference position is thicker, the gap between the waist circumference and the human body is avoided, and the fit is higher.

[0026] Although the present application is specifically shown and described in combination with the preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the present application as defined in the appended claims, and all such changes are within the protection scope of the present application.

Claims

1. An absorbent article having a plurality of elastic regions, comprising a liquid-permeable top sheet (100), an absorbent core (200), and a liquid-impermeable back sheet (300) arranged in layers, wherein the longitudinal direction of the absorbent article is defined as the lengthwise direction, the transverse direction is defined as the widthwise direction, the center of the absorbent article is defined as the crotch portion (b), and the two ends of the lengthwise direction are defined as the waist portions (a), and the waist-crotch portion (c) is defined as the portion between the crotch portion (b) and the waist portions (a), characterized in that: The absorbent article is provided with leg gasketing elastic members (400) on both sides of the center, a waistband portion (1) is provided at the waist region (a), a crotch elastic sheet (2) is provided at the waist-crotch region (c), and a crotch elastic sheet (3) is provided at the crotch region (b). The elastic direction of the crotch elastic sheet (2) extends in the transverse direction, and the elastic direction of the crotch elastic sheet (3) extends in the longitudinal direction.

2. An absorbent article of the type having a plurality of elastic regions according to claim 1, characterized in that: The waistband portion (1), the crotch elastic sheet (2), and the crotch elastic sheet (3) are connected to each other.

3. An absorbent article of the type having a plurality of elastic regions according to claim 2, characterized in that: The waistband portion (1) comprises an inner waistband layer (11) close to the inner side and an outer waistband layer (12) close to the outer side. The inner waistband layer (11) extends from the longitudinal end of the absorbent article to the waist region (a). The outer waistband layer (12) extends from the longitudinal end of the absorbent article to the waist-crotch region (c). The crotch elastic sheet (2) is connected to the outer waistband layer (12).

4. An absorbent article of the type having multiple elastic regions according to claim 3, characterized in that: The inner waistband layer (11) is a fine denier elastic nonwoven fabric.

5. A multi-interval distribution absorbent article according to any one of claims 1 to 4, characterized in that: The crotch elastic sheet (3) is connected to the leg gasketing elastic members (400) on both sides.

Citation Information

Patent Citations

  • Pants-type disposable diaper

    CN101068519B