Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite absorbent paper for absorbency product and preparing method thereof

An absorbent, absorbent paper technology, applied in absorbent pads, medical science and other directions, can solve the problems of limited performance of composite water absorbents, affected secondary absorption speed, and decreased surface dryness, etc., to improve the polymer distribution. Gradient, high polymer utilization, and the effect of improving performance

Active Publication Date: 2016-03-09
中科健(天津)科技集团有限公司
View PDF7 Cites 11 Cited by
  • Summary
  • 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. In the width direction, the layer is composed of a single-performance water-absorbing agent or a uniformly mixed water-absorbing agent. The performance of the composite water-absorbing agent is often limited by the characteristics of the water-absorbing agent itself, and it is difficult to effectively improve
Moreover, there are significant differences in the absorption process of body fluids in absorbent products in different regions. For example, the pressure on the urination site is relatively small, and the pressure on the inner thighs and buttocks is relatively large, and it is difficult for a single absorbent to absorb fluids in different areas. Good absorption performance in different environments
On the other hand, in absorbent products with large liquid absorption such as diapers, the amount of polymer used is relatively large, and the polymer water-absorbing layer will swell rapidly after absorption, causing gel blocking, seriously affecting the secondary absorption rate, and causing the surface layer to be dry. sex decline

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite absorbent paper for absorbency product and preparing method thereof
  • Composite absorbent paper for absorbency product and preparing method thereof
  • Composite absorbent paper for absorbency product and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Such as figure 1 As shown, the composite absorbent paper for absorbent products includes an upper isolation layer, a lower isolation layer, and a water-absorbing layer located between the upper isolation layer and the lower isolation layer, and the water-absorbing layer includes The first water-absorbing layer composed of the first water-absorbing agent and the second water-absorbing layer composed of the second water-absorbing agent.

[0069] Concrete preparation steps are:

[0070] (1) The first water-absorbing agent is sequentially spread downward on one side of the lower isolation layer through the first bucket body and the first metering groove on the first metering shaft to form a first water-absorbing layer;

[0071] The second water-absorbing agent is sequentially spread downward on the upper side of the lower isolation layer through the second bucket body and the second metering groove on the second metering shaft to form a second water-absorbing layer;

[00...

Embodiment 2

[0082] The structure of embodiment 2 is basically the same as that of embodiment 1. The difference between embodiment 2 and embodiment 1 is that the water-absorbing layer is only continuously sprinkled with the first water-absorbing agent to form a water-absorbing layer. The height of the water-absorbing layer is described The molecular weight is consistent with the total weight of the polymer in Example 1.

Embodiment 3

[0084] The structure of embodiment 3 is basically the same as that of embodiment 1, both of which have a three-layer structure. The difference between embodiment 3 and embodiment 1 is that the water-absorbing layer is only continuously sprinkled by the second water-absorbing agent to form a water-absorbing layer , stating that the polymer weight of the water-absorbing layer is consistent with the total weight of the polymer in Example 1.

[0085] The test result of table 1 embodiment 1, embodiment 2 and embodiment 3

[0086]

[0087] It can be seen from the above table that no matter whether a single first water-absorbing agent or a single second water-absorbing agent is used, it is not as good as two kinds of water-absorbing agents arranged at intervals. Since the water-absorbing speeds of the two water-absorbing agents are different, the interval setting can improve the composite water-absorbing effect. The diffusion length of the paper increases the utilization rate of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention provides composite absorbent paper for an absorbency product. The composite absorbent paper comprises an upper isolation layer, a lower isolation layer and absorbent layers located between the upper isolation layer and the lower isolation layer, wherein the absorbent layers include the first absorbent layer formed by a first water absorbent and the second absorbent layer formed by a second water absorbent, and the first absorbent layer and the second absorbent layer are arranged in a spaced mode in the breadth direction. The composite absorbent paper overcomes the defects of the prior art, absorbency is high, gel blocking can not be caused after water absorption, the preparing technology is simple, and cost is low.

Description

technical field [0001] The invention belongs to the field of composite absorbent paper, in particular to a composite absorbent paper for absorbent products and a preparation method thereof. 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. In the width direction, the layer is composed of a single-performance water-absorbing agent or a uniformly mixed water-absorbing agent. The performance of the composite water-absorbing agent is often limited by the characteristics of the water-absorbing agent itself, and it is difficult to effectively improve it. Moreover, there are significant differences in the absorption process of body fluids in absorbent products in different regions. For example, the pressure on the urination site is relati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/53
CPCA61F13/15577A61F13/53A61F2013/15121A61F2013/1513A61F2013/15146A61F2013/15463A61F2013/15878A61F2013/15991A61F2013/530481
Inventor 韩海星陈奎
Owner 中科健(天津)科技集团有限公司