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

U-shaped hollow Dacron draw-textured yarn and preparation method thereof

A technology for drawing textured yarn and hollowing, which is applied in hollow filament manufacturing, rayon manufacturing, filament/thread forming, etc., can solve the problems of small difference in POY raw fiber quality, production efficiency, and hollow fiber cross-section damage. To achieve the effect of soft and warm hand feeling, good pilling resistance and elasticity, and broad application prospects

Active Publication Date: 2015-04-29
JIANGSU HENGLI CHEM FIBER
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the limitations of the existing production methods of hollow plus "U" shaped polyester stretch textured yarn, and provide a hollow plus "U" shaped polyester stretch textured yarn and its preparation method. Two kinds of spinneret microholes are designed on the same spinneret, one kind of "U" shaped hole and the other kind of hollow hole, so that there are both "U" shaped filaments and hollow filaments in a bundle of filaments, so that POY original The difference in silk quality becomes smaller and the production efficiency is greatly improved; at the same time, through the arrangement design of the two kinds of spinneret micropores, the hollow filament is wrapped inside the "U"-shaped filament, and the cross-section of the hollow filament is greatly damaged in the subsequent false twisting process. Reduced, the functionality of the product is significantly improved

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
  • U-shaped hollow Dacron draw-textured yarn and preparation method thereof
  • U-shaped hollow Dacron draw-textured yarn and preparation method thereof
  • U-shaped hollow Dacron draw-textured yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] use as image 3 The spinneret shown produces 115dtex / 100f polyester pre-oriented yarn, and the semi-dull PET melt is extruded into bundles through a 100-hole spinneret, cooled by ring blowing, oiled on the bundles, wound and formed, and hollow and "U" are obtained. Shape polyester POY filaments, and then pass through the pre-net device → shredder → first roller → first hot box → cooling plate → false twister → tension meter → second roller → network nozzle → second hot box → third Roller → upper tanker → winding forming (DTY83dtex / 100f) to obtain hollow plus "U" shaped polyester stretch textured yarn. Among them, when the melt intrinsic viscosity is 0.67dl / g, the spinning temperature is 292°C, the spinning speed is 2600-2800m / min, the cooling air pressure is 25-35Pa, the side blowing temperature is 19°C, the length of the windless zone 40-70mm, oiling rate 0.7%, winding angle 5.6°-6.7°, contact pressure 140N-180N, DTY draft ratio 1.4-1.5, D / Y ratio 1.5-1.6. The fiber ...

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
Irregularityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a U-shaped hollow Dacron draw-textured yarn and a preparation method thereof. The technical process includes the steps of: adding polyester melt; sequentially passing through a booster pump, a melt transport pipe, a spinning box, a metering pump and a spinning assembly including a spinneret plate; cooling, oiling and winding; further sequentially passing through a pre-netting device, a yarn cutter, a first roller, a first heat box, a cooling plate, a false twister, a tension meter, a second roller, a network nozzle, a second heat box, a third roller and an oil wheel; winding for shaping, namely obtaining the required product. According to the preparation method, two kinds of jet micropores are designed on the same spinneret plate, namely U-shaped holes and hollow holes, so that the a bunch of yarns include U-shaped yarns as well as hollow yarns; meanwhile, through the arrangement design of the two kinds of jet micropores, the hollow yarns are wrapped in the U-shaped yarns, so that the damage to the sections of the hollow yarns in a sequential false twisting process is greatly reduced, and the functionality of the product is significantly promoted. The fabric prepared according to the invention has very wide application prospect in the field of garment materials and fabrics.

Description

technical field [0001] The present invention relates to a hollow plus "U" shaped polyester stretch textured yarn and a preparation method thereof, in particular to provide a method for processing hollow plus "U" shaped polyester with both "U" shaped and hollow POY raw yarns Preparation method of stretch textured yarn. Background technique [0002] With the improvement of social and economic development level and people's living standards, people have higher requirements for the fabric, style and style of clothing, as well as the comfort of wearing. The cross-section of traditional fibers is circular, the air permeability and moisture absorption of the fabric are poor, and the fabric density is high. Due to the change of cross-sectional shape, special-shaped fibers have unique properties compared with ordinary chemical fibers, which are mainly reflected in the following aspects: The different geometric sections of the fiber can refract and split light like a prism, and then ...

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): D01D5/24D01D5/096D01D5/253D01D5/088D02G1/16
Inventor 晏金龙陈德伟舒明芳彭明超尹亚芹
Owner JIANGSU HENGLI CHEM FIBER
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