Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

False twist yarn comprising dyeable polyolefin fibers

A polyolefin fiber and polyolefin technology, applied in the direction of single-component polyolefin rayon, conjugated synthetic polymer rayon, yarn, etc., can solve the problem of softness damage, light color development, and fiber hardening And other issues

Active Publication Date: 2019-03-15
TORAY IND INC
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for pigments to stably exhibit vivid color development properties and light hues like dyes, and when pigments are used, the fibers tend to harden, which has the disadvantage of impairing flexibility.

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
  • False twist yarn comprising dyeable polyolefin fibers
  • False twist yarn comprising dyeable polyolefin fibers
  • False twist yarn comprising dyeable polyolefin fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173] Add 95.2 parts by weight of polypropylene (PP) (1352F manufactured by Plastics, Taiwan, melting peak temperature 159°C, melt viscosity 1030 poise) and polyethylene terephthalate copolymerized with 30 mol% of 1,4-cyclohexanedicarboxylic acid 4.8 parts by weight of ester, as antioxidant, 1,3,5-tris[[4-(1,1-dimethylethyl)-3-hydroxy-2,6-dimethylbenzene as phenolic compound 0.05 parts by weight of methyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (Cyanox 1790 manufactured by CYTEC), tris(2, 0.05 parts by weight of 4-di-tert-butylphenyl) ester (Irgafos168 manufactured by BASF), bis(1-undecyloxy-2,2,6,6-tetramethylpiperidine- 0.6 parts by weight of 4-yl) carbonate (Adecastab LA-81 manufactured by ADEKA) was kneaded at a kneading temperature of 230° C. using a twin-screw extruder. After the strand discharged from the twin-screw extruder was cooled with water, it was cut into about 5 mm in length by a pelletizer to obtain pellets. After vacuum-drying the obtained pellets at 95° C....

Embodiment 2～7

[0178] A false twisted yarn was produced in the same manner as in Example 1 except that polyesters (B) having different melt viscosities were used. Tables 1 and 2 show the fiber properties and evaluation results of the obtained false-twisted processed yarn.

Embodiment 8～14

[0183] A false twisted yarn was produced in the same manner as in Example 1 except that the copolymerization ratio of cyclohexanedicarboxylic acid was changed as shown in Tables 3 and 4.

[0184] Tables 3 and 4 show the evaluation results of fiber properties and fabric properties of the obtained false-twisted textured yarns.

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
diameteraaaaaaaaaa
temperatureaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

This false twist yarn comprises dyeable polyolefin fibers which are characterized as being polymer alloy fibers each having a sea-island structure in which a polyolefin (A) is the sea component and apolyester (B) having cyclohexanedicarboxylic acid compolymerized therein is the island component, and in which the dispersion diameter of the island component in a fiber cross-section is 30-1000 nm, wherein the number of the polymer alloy fibers is three or more, and the polymer alloy fibers have physical properties (1) and (2): (1) crimp recovery (CR) being 10-40%; and (2) hot-water dimensional change being 0.0-7.0%. As a result, a polyolefin false twist yarn capable of developing vivid and profound colors is provided even though the polyolefin fibers therein are light in weight.

Description

technical field [0001] This invention relates to false twisted processed yarns formed from dyeable polyolefin fibers. More specifically, it relates to imparting bright and deep color development properties to polyolefin fibers excellent in lightness, and bulkiness suitable for clothing raw materials, and can be suitably used as fiber structures made of dyeable polyolefins. False twist processed yarn formed from fibers. Background technique [0002] Polyethylene fibers and polypropylene fibers, which are one type of polyolefin fibers, have a disadvantage of being difficult to dye because they do not have polar functional groups, although they are excellent in light weight and chemical resistance. Therefore, it is not suitable for clothing materials, and the current situation is limited applications such as interior applications such as carpet tiles, household flooring fabrics, and car mats, and material applications such as ropes, protective nets, filter cloths, narrow tapes...

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): D02G1/02D01F8/06D01F8/14
CPCD01F6/46D02G1/0206D01F8/06D01F8/14D02G3/045D02G3/36D02G3/448D10B2401/14
Inventor 浜中省吾鹿野秀和望月克彦
Owner TORAY IND INC
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
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