Manufacturing method for water absorbing material

A technology of water-absorbing material and manufacturing method, which is applied in the directions of paper coating, special paper, tissue paper/absorbent paper, etc., can solve the problems of leakage of polymer water-absorbing resin, insufficient contact of wood pulp fiber, hidden danger of water-absorbing material, etc. Conductivity, good gel water retention, enhanced interweaving effect

Active Publication Date: 2018-03-06
诺宸股份有限公司
View PDF5 Cites 66 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dry glue spray compounding will not only cause hygienic hazards to water-absorbing materials, but also affect the water absorption speed after the glue dries; moreover, due to insufficient compounding during the application process after compounding, part of the polymer water-absorbing resin will leak and affect the water absorption.
After dry compounding, the polymer water-absorbing

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
  • Manufacturing method for water absorbing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Put softwood pulp and hardwood pulp in a hydraulic pulper for pulping. The concentration of the pulp is 5wt%, and the pulping time is 15min. Then the pulped pulp is placed in a disc mill for grinding Pulp to split the fibers in softwood pulp and hardwood pulp, the refining power during the refining process is 300kW, the throughput of the slurry during the refining process is 2000L / min, and the refining concentration is 4.0wt%; The ground slurry is transported to the mixing tank for mixing, the weight ratio of softwood pulp to hardwood pulp is 30:70, and the polyamide polyepichlorohydrin resin wet strength agent is added during the mixing process And hydrophilic silicone softener to obtain the surface slurry and the bottom slurry; then, the surface slurry and the bottom slurry are conveyed to the Internet through the headbox, and the on-line concentration of the surface slurry and the bottom slurry is 0.7wt%, The surface slurry and the bottom slurry dehydrated by the wire...

Embodiment 2

[0058] Embodiment 2 is carried out in basically the same way as embodiment 1, except that:

[0059] The weight ratio of softwood pulp to hardwood pulp is 20:80.

Embodiment 3

[0061] Example 3 was carried out in the same manner as Example 1, except that:

[0062] The weight ratio of softwood pulp to hardwood pulp is 40:60.

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

No PUM Login to view more

Abstract

The invention relates to a manufacturing method for a water absorbing material. The method comprises the following steps: (1) performing net forming on a surface slurry material to prepare wet surfacelayer paper, and performing net forming on a bottom slurry material to prepare wet bottom layer paper; (2) separately spraying polymer water-absorbing resin to the wet surface layer paper and the wetbottom layer paper prepared in the step (1), and compounding the wet surface layer paper and the wet bottom layer paper sprayed with the polymer water-absorbing resin to prepare a wet paper sheet; and (3) pressing the wet paper sheet obtained in the step (2), and performing drying to obtain the water absorbing material. The method provided by the invention adopts a wet combination method for thepolymer water-absorbing resin as the combination manner, the polymer water-absorbing resin is completely embedded in paper sheet fibers, so that the contact area between the polymer water-absorbing resin and the paper sheet fibers is greatly improved, and meanwhile the conductivity of the paper sheet fibers and the polymer water-absorbing resin to a liquid is reinforced, thereby greatly improvingthe water absorption capacity and the water absorption speed of the water absorbing material.

Description

Technical field [0001] The invention relates to the technical field of water-absorbing materials, and in particular to a method for manufacturing water-absorbing materials. Background technique [0002] In the wood pulp core structure of high-absorbent products, the main absorbents are polymer water-absorbing resin and wood pulp. The current composite method of water-absorbent resin and wood pulp paper is dry composite. After spraying glue on the surface of the wood pulp layer, the polymer water-absorbing resin is dispersed on the surface of the wood pulp paper layer. Dry spray glue compounding will not only cause sanitary hazards to the water-absorbing material, but also affect the water absorption speed after the glue is dried; and after compounding, due to insufficient compounding during the application process, part of the polymer water-absorbing resin leaks and affects the water absorption. After dry compounding, the polymer water-absorbing resin is distributed on the surfa...

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
IPC IPC(8): D21F11/00D21H15/10D21H21/14D21H23/24D21H19/14D21H19/24D21H27/00C08L71/02C08K3/36C08F283/06C08F220/06C08F4/40C08F222/10
CPCD21F11/00D21H15/10D21H21/14D21H23/24D21H19/14D21H19/24D21H27/002C08F283/06C08K3/36C08F220/06C08F4/40C08L71/02
Inventor 荣敏杰许永升于庆华荣帅帅
Owner 诺宸股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap