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

Method for modifying fibers

A fiber modification and fiber technology, applied in the direction of post-treatment modification of cellulose pulp, no pigment coating, etc., can solve problems such as reduction, and achieve the effect of excellent wear resistance and enhanced tensile strength

Inactive Publication Date: 2011-04-13
AICHI PREFECTURE +2
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this method not only requires dissolving the cellulose in aqueous sodium hydroxide solution at low temperature, but also requires the use of this type of cellulose with a reduced crystal structure sufficient to increase solubility, e.g. by acid hydrolysis of wood pulp and in Cellulose obtained by grinding it in a ball mill, or regenerated cellulose obtained from viscose, thereby limiting the process

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Disperse 50 g of the low-substituted cellulose ethers shown in Table 1 into 950 g of 0.5 wt % sodium hydroxide aqueous solution, and then use the relative collision unit "ALTEMIZER" manufactured by Sugino Machine Ltd to the dispersion to be sheared under a pressure of 150 MPa Perform high pressure dispersion. This high-pressure dispersion process was repeated 10 times to obtain a sheared low-substituted cellulose ether dispersion. A dispersion sample was prepared by adding 8 g of diphenylmethane diisocyanate per 100 g of the sheared cellulose ether dispersion. Next, the Knit Comber cotton thread #30 / 1 was dipped into the dispersion and squeezed with a roller calender to an absorption of 108%, dried thereupon, and then heated at 145° C. for 10 samples in minutes.

[0045] Each sample obtained in this way was subjected to the following test methods to evaluate fuzziness, tensile strength, abrasion resistance, antistatic property, water absorption and washing durability....

Embodiment 2 to 8

[0047] 50 g of the low-substituted cellulose ether shown in Table 1 was dispersed in 950 g of water, and then the dispersion to be sheared was subjected to high-pressure dispersion at a pressure of 150 MPa using a relative collision unit "ALTEMIZER" manufactured by SuginoMachine Ltd. This high-pressure dispersion process was repeated 10 times to obtain a sheared low-substituted cellulose ether dispersion. A dispersion sample was prepared by adding 8 g of diphenylmethane diisocyanate per 100 g of the sheared cellulose ether dispersion. Next, Knit Comber cotton thread (Knit Comber cotton thread) #30 / 1 or wool #2 / 48 was dipped into the dispersion and squeezed with a roller calender to an absorption of 108%, followed by drying , and then heated at 145°C for 10 minutes to obtain a sample.

[0048] Each sample obtained in this manner was subjected to the following test methods to evaluate fuzziness, tensile strength, abrasion resistance, antistatic property, water absorption and wa...

Embodiment 9

[0050] 50 g of the low-substituted cellulose ether shown in Table 1 was dispersed in 950 g of water, and then the dispersion to be sheared was subjected to high-pressure dispersion at a pressure of 150 MPa using an opposing collision unit "ALTEMIZER" manufactured by SuginoMachine Ltd. This process was repeated 10 times to obtain a sheared low-substituted cellulose ether dispersion. A dispersion sample was prepared by adding 8 g of a cross-linked product of polyethylene oxide glycol and diphenylmethane diisocyanate per 100 g of the sheared cellulose ether dispersion as an aqueous emulsion of a cross-linked polyurethane resin. Next, wool #2 / 48 was dipped into the dispersion and squeezed with a roller calender with an absorption of 108%, and then heated at 95° C. for 20 minutes to obtain a sample. The samples thus obtained were subjected to the following test methods, and the results are shown in Table 1.

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
lengthaaaaaaaaaa
Login to View More

Abstract

A method for modifying fibers is provided, which method comprises suspending and dispersing in water under shear force a cellulose ether having such a low degree of substitution that a molar degree of substitution with an alkyl group and / or a hydroxyalkyl group ranges from 0.05 to 1.3, applying the resulting dispersion and a crosslinking agent or an aqueous resin emulsion to fibers, and thermallytreating the applied fibers.

Description

technical field [0001] The invention relates to a fiber modification method. Background technique [0002] In order to avoid fiber fuzzing, enhance the tensile strength and wear resistance of fibers, make the fibers antistatic and water-absorbent, and make the fibers have a good feel and texture such as a smooth and dry touch to the fibers, a method called A method of "linen-like finishing" in which viscose is adhered to the fibers and set to regenerate, then rinsed with water and dried to coat the surface of the fibers with regenerated cellulose. [0003] However, in this connection, the fiber modification method for forming a coating from regenerated fibers derived from viscose comprises the steps of dissolving cellulose xanthate obtained by denaturing cellulose with highly reactive carbon disulfide in aqueous sodium hydroxide solution , followed by coagulation and regeneration of the cellulose resulting in a viscose solution coated on the fibers. This presents a problem...

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): D21H19/34D21H11/20
Inventor 丸山直亮早川和久谷冈庄治都筑秀典鹿野刚河村博司早田常夫
Owner AICHI PREFECTURE
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