Composite absorbent paper

A technology of absorbent paper and absorbent layer, used in absorbent pads, medical science, bandages, etc., can solve the problems of difficult diffusion, affect the secondary absorption speed, and reduce the dryness of the surface layer, so as to improve the dryness of penetration and good liquid permeability. , the effect of improving utilization

Inactive Publication Date: 2016-12-14
TIANJIN SINOSH NEW MATERIAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of hygiene products, the hygroscopic materials used in commercially available sanitary napkins, diapers and other products are mostly composed of one or two layers of non-woven fabric and a layer of polymer or other water-absorbing materials. The layer is often flat and tends to focus in the center after absorbing water, which is not easy to spread, and the polymer water-absorbing layer will expand rapidly after absorbing, causing gel blocking, seriously affecting the secondary absorption speed, and resulting in a decrease in surface dryness

Method used

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  • Composite absorbent paper
  • Composite absorbent paper
  • Composite absorbent paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A composite absorbent paper, comprising an upper isolation layer 1 and a lower isolation layer 2; a water absorption layer 3 is arranged between the upper isolation layer 1 and the lower isolation layer 2; the layers are glued or thermally bonded together; the The water-absorbing layer 3 includes several SAP-absorbing units 31 and gap units 32 arranged at intervals.

[0032] The outer periphery of the SAP absorption unit 31 is a gap unit 32 .

[0033] The contact between the two adjacent SAP absorption units 31 on the same cross-section of the water-absorbing layer 3 is point contact; the contact between the two adjacent gap units 32 on the same cross-section of the water-absorbing layer 3 is point contact .

[0034] The inner edges of the three layers of the water-absorbing layer are gap units 32 .

[0035] The distribution quantity of the SAP absorption units 31 and the gap units 32 in the water absorption layer 3 along the length direction is greater than their dis...

Embodiment 2

[0042] The basic structure of the embodiment 2 is the same as that of the embodiment 1. The difference between the embodiment 2 and the embodiment 1 is that the cross-sectional shape of the SAP absorption unit 31 is a square, and the upper isolation The material of layer 1 is wet-strength paper, and the material of the lower isolation layer 2 is non-woven fabric.

Embodiment 3

[0044] The basic structure of the embodiment 3 is the same as that of the embodiment 1. The difference between the embodiment 3 and the embodiment 1 is that the cross-sectional shape of the SAP absorption unit 31 is circular, and the upper The material of the isolation layer 1 is toilet paper, and the material of the lower isolation layer 2 is non-woven fabric.

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PUM

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Abstract

The invention provides composite absorbent paper. The absorbent paper comprises an upper isolation layer and a lower isolation layer, wherein a water absorption layer is arranged between the upper isolation layer and the lower isolation layer; the layers are combined together by means of adhesion or thermal binding; the water absorption layer comprises a plurality of SAP absorption units and clearance units, which are arranged alternately. According to the composite absorbent paper, the SAP absorption units and the clearance units are alternately distributed in the water absorption layer, and are continuously distributed along the thickness direction of the water absorption layer, so that the SAP liquid flowing performance is excellent; and liquid can flow through the swelling SAP, even liquid-stored SAP, so that the utilization and absorption capacity of SAP can be improved.

Description

technical field [0001] The invention belongs to the field of disposable sanitary products, and in particular relates to a composite absorbent paper. Background technique [0002] At present, in the field of hygiene products, the hygroscopic materials used in commercially available sanitary napkins, diapers and other products are mostly composed of one or two layers of non-woven fabric and a layer of polymer or other water-absorbing materials. The layer is often flat and tends to focus in the center after absorbing water, which is not easy to spread, and the polymer water-absorbing layer will expand rapidly after absorbing, causing gel blockage, seriously affecting the secondary absorption speed, and resulting in a decrease in the dryness of the surface layer. On the other hand, as absorbent products become thinner, the ratio of fluff pulp / absorbent resin in the absorbent core is required to be continuously reduced. It is necessary to effectively improve the liquid-through p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/535
CPCA61F13/535A61F2013/15463A61F2013/530868
Inventor 韩海星陈奎周静
Owner TIANJIN SINOSH NEW MATERIAL TECH
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