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

Composite absorbent paper for absorbent products and its preparation method

A technology of absorbent and water-absorbing paper, which is applied in the direction of absorbent pads and medical science, can solve the problems of limited performance of composite water-absorbing agents, affecting the secondary absorption speed, and reducing the dryness of the surface, etc., to improve the distribution of polymers Gradient, high polymer utilization, and performance-enhancing effects

Active Publication Date: 2019-03-19
中科健(天津)科技集团有限公司
View PDF7 Cites 0 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 absorbent products and its preparation method
  • Composite absorbent paper for absorbent products and its preparation method
  • Composite absorbent paper for absorbent products and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] like figure 1 As shown, the composite water-absorbing paper for absorbent articles includes an upper separation layer, a lower separation layer and a water-absorbing layer located between the upper separation layer and the lower separation layer, and the water-absorbing layer includes spaced apart in the width direction. The first water-absorbing layer formed by the first water-absorbing agent and the second water-absorbing layer formed by the second water-absorbing agent are composed.

[0069] The specific preparation steps are:

[0070] (1) The first water-absorbing agent is scattered on one side of the lower isolation layer through the first bucket body and the first metering groove on the first metering shaft in turn, forming a first water-absorbing layer;

[0071] The second water-absorbing agent is successively scattered on the upper surface of the lower isolation layer through the second bucket body and the second metering groove on the second metering shaft to ...

Embodiment 2

[0083] The structure of Example 2 is basically the same as that of Example 1. The difference between Example 2 and Example 1 is that the water-absorbing layer is only formed by continuously spreading the first water-absorbing agent to form a water-absorbing layer. Molecular quantification is consistent with the total quantification of polymers in Example 1.

Embodiment 3

[0085] The structure of Example 3 is basically the same as that of Example 1, both of which are three-layer structures. The difference between Example 3 and Example 1 is that the water-absorbing layer is only continuously sprinkled by the second water-absorbing agent to form a water-absorbing layer. , it is stated that the quantification of the macromolecule of the water-absorbing layer is consistent with the total quantification of the macromolecule in Example 1.

[0086] Table 1 Test results of Example 1, Example 2 and Example 3

[0087]

[0088] From the above table, it can be seen that whether a single first water absorbent or a single second water absorbent is used, it is not as good as using two water absorbing agents at intervals. Due to the different water absorption speeds of the two water absorbing agents, the interval setting can improve the composite water absorption. The diffusion length of the paper improves the utilization rate of the water absorbent and redu...

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 Patents(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