CN217960544U

CN217960544U - Composite core

Info

Publication number: CN217960544U
Application number: CN202221527996.8U
Authority: CN
Inventors: 李敬
Original assignee: Guangdong Beihua New Materials Co ltd
Current assignee: Guangdong Beihua New Materials Co ltd
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-12-06
Anticipated expiration: 2032-06-18

Abstract

The utility model discloses a composite core, including flaky core main part, the core main part includes dustless paper layer, heat seal non-woven fabrics layer under last dustless paper layer, the first polymer absorbent resin layer of gluing under the non-woven fabrics layer, the lower dustless paper layer of gluing under the first polymer absorbent resin layer, the second polymer absorbent resin layer of gluing under dustless paper layer, still include the waterproof film layer of gluing under the second polymer absorbent resin layer, four sides parcel of core main part from the bottom are wrapped up to the waterproof film layer, prevent the liquid seepage; a plurality of first liquid guide grooves which are longitudinally arranged and a plurality of second liquid guide grooves which are transversely arranged are arranged on the first high-molecular water-absorbing resin layer, and each first liquid guide groove is communicated with each second liquid guide groove; a cross liquid guide groove is arranged in the middle of the second high polymer water-absorbent resin layer; the utility model discloses can guide and sparse liquid flow to a plurality of directions, the speed of absorption liquid is faster, absorbs more evenly.

Description

Composite core

Technical Field

The utility model relates to a health supplies technical field especially relates to a compound core.

Background

The core body is an important component of sanitary towels, sanitary pads, paper diapers and menstrual period pants. The core body is mainly used for absorbing liquid such as urine, blood and the like, and liquid discharged by a human body is prevented from polluting the body and clothes. Although the existing core body can absorb liquid, the absorption speed is slow, the contact time of skin and liquid is prolonged, and the skin health is not good; when a large amount of liquid contacts with the core body, the existing core cannot guide and disperse the liquid to multiple parts of the core quickly, but concentrates on a certain part of the core, so that the liquid absorption speed is slow, and the risk of liquid overflow exists.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a composite core, it can guide and sparse liquid flows to a plurality of directions, and the speed of absorption liquid is faster, absorbs more evenly.

A composite core comprises a flaky core body, wherein the core body comprises an upper dust-free paper layer, a non-woven fabric layer thermally sealed below the upper dust-free paper layer, a first high-molecular water-absorbent resin layer adhered below the non-woven fabric layer, a lower dust-free paper layer adhered below the first high-molecular water-absorbent resin layer, a second high-molecular water-absorbent resin layer adhered below the lower dust-free paper layer and a waterproof film layer adhered below the second high-molecular water-absorbent resin layer, wherein the waterproof film layer wraps four sides of the core body from the bottom to prevent liquid leakage; a plurality of first liquid guide grooves which are longitudinally arranged and a plurality of second liquid guide grooves which are transversely arranged are arranged on the first high-molecular water-absorbing resin layer, and each first liquid guide groove is communicated with each second liquid guide groove; a cross liquid guide groove is arranged in the middle of the second high polymer water-absorbent resin layer.

Further, the first high molecular water absorbent resin layer and the second high molecular water absorbent resin layer are composed of high molecular water absorbent resin particles.

Furthermore, the first liquid guide groove, the second liquid guide groove and the cross-shaped liquid guide groove are formed by pressing through a mold.

Further, the core body is a rectangular parallelepiped.

The utility model has the advantages that: the water-absorbing resin composite material is provided with a first high-molecular water-absorbing resin layer and a second high-molecular water-absorbing resin layer, and can absorb and contain more liquid by utilizing the strong water absorbing capacity and water retention capacity of the first high-molecular water-absorbing resin layer; the liquid absorption device is provided with the first liquid guide groove, the second liquid guide groove and the cross-shaped liquid guide groove, so that liquid can be guided and dispersed to flow in multiple directions, the liquid absorption speed is higher, and the liquid absorption is more uniform; be provided with waterproof film layer, avoid liquid from the bottom and the leakage of four sides of core main part.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is a cross-sectional view of the present invention taken along the length of the core body;

FIG. 2 is a cross-sectional view of the present invention taken along the width direction of the core body;

fig. 3 is a schematic top plan view of the first polymeric water-absorbent resin layer according to the present invention;

fig. 4 is a schematic top plan view of the first polymeric water absorbent resin layer of the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-4, a composite core comprises a sheet-like core body 1, preferably rectangular parallelepiped, for ease of use; the core body 1 comprises an upper dust-free paper layer 2, a non-woven fabric layer 3 thermally bonded below the upper dust-free paper layer 2, a first high-molecular water-absorbent resin layer 4 adhered below the non-woven fabric layer 3, a lower dust-free paper layer 5 adhered below the first high-molecular water-absorbent resin layer 4, a second high-molecular water-absorbent resin layer 6 adhered below the lower dust-free paper layer 5, and a waterproof film layer 7 adhered below the second high-molecular water-absorbent resin layer 6, wherein the waterproof film layer 7 wraps four side surfaces of the core body 1 from the bottom to prevent liquid leakage; three first liquid guide grooves 8 which are longitudinally arranged and five second liquid guide grooves 9 which are transversely arranged are arranged on the first high-molecular water-absorbing resin layer 4, each first liquid guide groove 8 is communicated with each second liquid guide groove 9, and the structural design can guide and disperse a large amount of liquid to each part, so that the liquid can be quickly absorbed; a cross liquid guide groove 10 is arranged in the middle of the second high polymer water-absorbent resin layer 6, part of liquid is absorbed by the first high polymer water-absorbent resin layer 4, and the liquid reaching the second high polymer water-absorbent resin layer 6 is not too much, so that only the cross liquid guide groove 10 is arranged, and the processing is more convenient. The first high-molecular water-absorbent resin layer 4 and the second high-molecular water-absorbent resin layer 6 are composed of high-molecular water-absorbent resin particles 11. The first liquid guide groove 8, the second liquid guide groove 9 and the cross-shaped liquid guide groove 10 are formed by pressing through a die, and the die is convenient and quick.

Heat sealing refers to joining two objects together by heating. Gluing refers to the joining of two objects together by means of an adhesive. The high-molecular water-absorbing resin is called SAP for short, and is a typical functional high-molecular material. It can absorb hundreds of times, even thousands of times its own weight of water and has a strong water-retaining capacity, so it is also called super absorbent or high water-retaining agent. In terms of chemical structure, the super absorbent resin is a low crosslinking degree or partially crystalline high molecular polymer having many hydrophilic groups. The waterproof film layer 7 may be composed of three layers: PP spunbonded non-woven fabric, PE high-molecular breathable film and PP spunbonded non-woven fabric. The spun-bonded non-woven fabric mainly has the functions of enhancing tensile force and hydrostatic pressure and protecting the middle layer, and the ventilation is mainly realized by the PE high-molecular breathable film in the middle layer. PP is short for Polypropylene and is called Polypropylene in Chinese. PE is polyethylene for short, and is named polyethylene in Chinese.

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. Also, 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, it is to be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite core body comprises a flaky core body and is characterized in that: the core body comprises an upper dust-free paper layer, a non-woven fabric layer thermally sealed below the upper dust-free paper layer, a first high-molecular water-absorbent resin layer adhered below the non-woven fabric layer, a lower dust-free paper layer adhered below the first high-molecular water-absorbent resin layer, a second high-molecular water-absorbent resin layer adhered below the lower dust-free paper layer and a waterproof film layer adhered below the second high-molecular water-absorbent resin layer, wherein the waterproof film layer wraps four side surfaces of the core body from the bottom to prevent liquid leakage; a plurality of first liquid guide grooves which are longitudinally arranged and a plurality of second liquid guide grooves which are transversely arranged are arranged on the first high-molecular water-absorbing resin layer, and each first liquid guide groove is communicated with each second liquid guide groove; a cross liquid guide groove is arranged in the middle of the second high polymer water-absorbent resin layer.

2. The composite core of claim 1 wherein: the first high molecular water-absorbing resin layer and the second high molecular water-absorbing resin layer are composed of high molecular water-absorbing resin particles.

3. A composite core according to claim 1 or claim 2, wherein: the first liquid guide groove, the second liquid guide groove and the cross-shaped liquid guide groove are formed by pressing a die.

4. A composite core as claimed in claim 3, wherein: the core body is a cuboid.