Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Refining post-treatment method for non-woven cellulose fibers and non-woven cellulose fibers

A technology of cellulose fiber and treatment method, which is applied in the field of viscose fiber, and can solve problems such as poor whiteness uniformity and reduced strength index

Inactive Publication Date: 2021-05-18
山东雅美科技有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment method of high-white viscose fiber in the market is mainly to use sodium hypochlorite to bleach and then wash the fiber, which has poor whiteness uniformity. Although the whiteness is improved after re-bleaching, the strength index is reduced.

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
  • Refining post-treatment method for non-woven cellulose fibers and non-woven cellulose fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Example 1 A post-refining treatment method for non-woven cellulose fibers

[0082] Use pre-spinning injection equipment to evenly inject the matting agent dispersion liquid into the spinning tube according to the volume ratio of 0.008:1 to the raw liquid viscose and mix it with the raw liquid viscose. After being mixed evenly by a dynamic mixer, it is sent to the spinning machine, and passed through the nozzle of the spinning machine. Produces non-woven cellulose fibers.

[0083] The non-woven cellulose fibers produced by spinning are sent to refiners for processing. It goes through one water washing, desulfurization, two water washing, three water washing, one bleaching, four water washing, deodorization, five water washing, final water washing, and oiling process (including secondary bleaching).

[0084] The non-woven cellulose fiber processed above is sent to the drying equipment for drying, and the finished product of non-woven cellulose fiber is obtained after dry...

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
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention provides a refining post-treatment method for non-woven cellulose fibers and the non-woven cellulose fibers, and relates to the technical field of viscose fibers. The treatment method comprises the following steps of spinning stock solution viscose to obtain fiber tows, and sequentially performing refining post-treatment, opening and drying on the fiber tows to obtain the non-woven cellulose fibers, wherein the refining post-treatment sequentially comprises the procedures of primary water washing, desulfurization, secondary water washing, tertiary water washing, bleaching, fourth water washing, deodorization, fifth water washing, final water washing and oiling. The non-woven cellulose fibers provided by the invention have the advantages of high whiteness, few surfactants, high fiber fineness, large specific surface area, low flexural rigidity, low fiber bending resistance, low absolute strength and the like.

Description

technical field [0001] The invention relates to the technical field of viscose fibers, in particular to a post-refining treatment method for non-woven cellulose fibers and the non-woven cellulose fibers. Background technique [0002] At present, the market is dominated by ordinary fibers, and the development speed is in a pattern of oversupply. Therefore, it is inevitable to increase the differentiation rate of viscose staple fiber and actively develop new markets. In addition to good hygroscopicity, air permeability, environmental protection, and natural degradation, the new non-woven cellulose fiber also has the characteristics of high whiteness, high cleanliness, uniform matting, low sulfur, low odor, and high dispersion. The spunlaced nonwovens made of this raw material are widely used in the fields of medical treatment and sanitation, such as cleaning cloths, gauze and other special materials, surgical gowns, protective clothing, sponges, baby diapers and other products...

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): D01F2/08D06L4/75D06M11/38D06M11/55D06M101/06
CPCD01F2/08D06L4/75D06M11/38D06M11/55D06M2101/06
Inventor 刘方波桑海军魏健徐高学徐涛耿燕燕王建民刘良
Owner 山东雅美科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com