CN219166906U

CN219166906U - Knitted fabric absorption core

Info

Publication number: CN219166906U
Application number: CN202222522720.7U
Authority: CN
Inventors: 李敬; 任红英
Original assignee: Guangdong Meideng New Material Technology Co ltd
Current assignee: Guangdong Meideng New Material Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-06-13
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a knitted fabric absorption core, which comprises a core body, wherein the core body comprises a knitted fabric surface layer, a first fiber layer, a first super absorbent resin layer, a second fiber layer, a second super absorbent resin layer, a third fiber layer and a third super absorbent resin layer which are sequentially laminated and compounded together, a waterproof film is adhered to the periphery of the core body, and a containing cavity for containing the core body and liquid is formed in the waterproof film; the knitted fabric surface layer is provided with a plurality of ventilation liquid through holes which are regularly distributed, and the first super absorbent resin layer and the second super absorbent resin layer are provided with at least one transverse liquid guiding groove and a plurality of longitudinal liquid guiding grooves, and the transverse liquid guiding grooves are communicated with the longitudinal liquid guiding grooves so as to facilitate the liquid to spread towards a plurality of directions; the utility model has good air permeability, high liquid absorption speed and can avoid liquid leakage.

Description

Knitted fabric absorption core

Technical Field

The utility model relates to the technical field of cores of sanitary products, in particular to a knitted fabric absorption core.

Background

Sanitary products include paper diapers, sanitary napkins and the like, which absorb liquids such as urine and blood from the human body through a core. The core is generally composed of a hydrophilic surface layer, a water-absorbent resin layer, and a base film. The existing absorbent core can achieve the effect of liquid absorption to a certain extent, but has a certain improvement space in the aspects of air permeability, liquid absorption speed, leakage prevention and the like.

Disclosure of Invention

In order to solve one of the technical problems in the related art to a certain extent, the utility model provides a knitted fabric absorbent core which has good air permeability and high liquid absorption speed and can avoid liquid leakage.

The knitted fabric absorption core comprises a core body, wherein the core body comprises a knitted fabric surface layer, a first fiber layer, a first super absorbent resin layer, a second fiber layer, a second super absorbent resin layer, a third fiber layer and a third super absorbent resin layer which are sequentially laminated and compounded together, a waterproof film is adhered to the periphery of the core body, and a containing cavity for containing the core body and liquid is formed in the waterproof film; the knitted fabric surface layer is provided with a plurality of ventilation liquid through holes which are regularly distributed, and the first super absorbent resin layer and the second super absorbent resin layer are provided with at least one transverse liquid guiding groove and a plurality of longitudinal liquid guiding grooves, and the transverse liquid guiding grooves are communicated with the longitudinal liquid guiding grooves, so that liquid can be conveniently diffused in a plurality of directions.

Further, the transverse liquid guide groove is one and is arranged centrally, and extends along the length direction of the core body; the longitudinal liquid guiding grooves are three and uniformly distributed, extend along the width direction of the core body, and are vertically communicated with the longitudinal liquid guiding grooves.

Further, the width of the transverse liquid guide groove is 0.2-0.5 mm, the width of the longitudinal liquid guide groove is 0.1-0.3 mm, and the diameter of the ventilation liquid through hole is 0.03-0.08 mm.

Further, the first fiber layer, the second fiber layer and the third fiber layer are made of dust-free paper or non-woven fabric.

Further, ventilation micropores are regularly arranged on the waterproof film, and the diameters of the ventilation micropores are 1-3 microns.

The beneficial effects of the utility model are as follows: the knitted fabric surface layer is arranged, so that liquid can be quickly and downwards permeated, and the surface contacted with a human body can be kept breathable and dry; the first and second super absorbent resin layers are provided with the transverse liquid guide grooves and the longitudinal liquid guide grooves, so that the liquid can be easily diffused in multiple directions, and the absorption speed is higher; the periphery of the outer part of the core body is provided with a waterproof film, so that the waterproof film is breathable but waterproof, and can prevent liquid from leaking and is more breathable and comfortable.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic top view of the waterproofing membrane of the present utility model;

FIG. 3 is a schematic view of the structure of the knitted fabric face layer of the present utility model;

fig. 4 is a schematic structural view of the first super absorbent resin layer or the second super absorbent resin layer of the present utility model.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1 to 4, a knitted fabric absorbent core comprises a core body 1, wherein the core body 1 comprises a knitted fabric surface layer 2, a first fiber layer 3, a first super absorbent resin layer 4, a second fiber layer 5, a second super absorbent resin layer 6, a third fiber layer 7 and a third super absorbent resin layer 8 which are sequentially laminated and compounded together, a waterproof film 9 is adhered to the periphery of the core body 1, the compounding or adhering mode can be a hot melting mode or a glue adhering mode, and the first fiber layer 3, the second fiber layer 5 and the third fiber layer 7 are formed by dust-free paper or non-woven fabrics; the waterproof film 9 is internally provided with a containing cavity 10 for containing the core body 1 and liquid, ventilation micropores 11 are regularly arranged on the waterproof film 9, and the diameter of the ventilation micropores 11 is 1-3 microns, and optimally 1 micron; a plurality of ventilation liquid holes 12 which are regularly distributed are formed on the knitted fabric surface layer 2, and the diameter of each ventilation liquid hole 12 is 0.03-0.08 mm, and optimally 0.05 mm; at least one transverse liquid guiding groove 13 and a plurality of longitudinal liquid guiding grooves 14 are arranged on the first super absorbent resin layer 4 and the second super absorbent resin layer 6, and the transverse liquid guiding grooves 13 are communicated with the longitudinal liquid guiding grooves 14, so that liquid can be conveniently spread in a plurality of directions. The preferable structure is as follows: the transverse liquid guiding groove 13 is one and is arranged in the middle, and extends along the length direction of the core body 1; the number of the longitudinal liquid guiding grooves 14 is three and the longitudinal liquid guiding grooves 14 are uniformly distributed, the longitudinal liquid guiding grooves extend along the width direction of the core body 1, and the transverse liquid guiding grooves 13 are vertically communicated with the longitudinal liquid guiding grooves 14; the width of the transverse liquid guiding groove 13 is 0.2 mm-0.5 mm, preferably 0.5 mm, and the width of the longitudinal liquid guiding groove 14 is 0.1 mm-0.3 mm, preferably 0.2 mm.

The knitted fabric surface layer 2 is a fabric formed by bending yarns into loops by using knitting needles and mutually stringing, and comprises warp knitted fabrics and weft knitted fabrics, wherein the knitted fabric has the characteristics of soft texture, moisture absorption, ventilation, perspiration, warmth retention and the like, and mostly has excellent elasticity and extensibility, so that liquid can be conveniently and rapidly penetrated downwards, and the surface contacted with a human body can be kept breathable and dry.

The english acronym SAP of super absorbent resin is a novel functional polymer material which has a super absorbent function of absorbing water several hundred to several thousand times heavier than itself and is excellent in water retention property, and once water is swelled into hydrogel, it is difficult to separate water even under pressure, so that a large amount of liquid discharged from a human body can be absorbed and held.

The waterproof film 9 can adopt a PE protective film, which is the most simple-structured polymer organic compound and is the most widely used polymer material in the world today, and the PE protective film takes a special Polyethylene (PE) plastic film as a base material, and the diameter of water vapor molecules is 0.0004 μm due to the fact that the minimum diameter of water drops is 20 μm, and the diameter of ventilation micropores 11 can be freely selected between the two, so that the ventilation but waterproof effect is achieved.

It should be noted that: in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, the following is to be described: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a knitted fabric absorbs core, includes the core, characterized by: the core body comprises a knitted fabric surface layer, a first fiber layer, a first super absorbent resin layer, a second fiber layer, a second super absorbent resin layer, a third fiber layer and a third super absorbent resin layer which are sequentially laminated and compounded together, a waterproof film is adhered to the periphery of the core body, and a containing cavity for containing the core body and liquid is formed in the waterproof film; the knitted fabric surface layer is provided with a plurality of ventilation liquid through holes which are regularly distributed, and the first super absorbent resin layer and the second super absorbent resin layer are provided with at least one transverse liquid guiding groove and a plurality of longitudinal liquid guiding grooves, and the transverse liquid guiding grooves are communicated with the longitudinal liquid guiding grooves, so that liquid can be conveniently diffused in a plurality of directions.

2. The knitted fabric absorbent core of claim 1, wherein: the transverse liquid guiding groove is one and is arranged in the middle, and extends along the length direction of the core body; the longitudinal liquid guiding grooves are three and uniformly distributed, extend along the width direction of the core body, and are vertically communicated with the longitudinal liquid guiding grooves.

3. The knitted fabric absorbent core of claim 1 or 2, characterized by: the width of the transverse liquid guiding groove is 0.2-0.5 mm, the width of the longitudinal liquid guiding groove is 0.1-0.3 mm, and the diameter of the ventilation liquid through hole is 0.03-0.08 mm.

4. The knitted fabric absorbent core of claim 1, wherein: the first fiber layer, the second fiber layer and the third fiber layer are made of dust-free paper or non-woven fabrics.

5. The knitted fabric absorbent core of claim 4, wherein: breathable micropores are regularly arranged on the waterproof film, and the diameters of the breathable micropores are 1-3 microns.