Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of high elastic shrinkage yarn and preparation method thereof

A high-elasticity, shrinking technology, applied in the direction of filament/thread forming, rayon heat treatment, conjugated synthetic polymer rayon, etc., can solve the problems of stress concentration, insufficient moisture absorption and quick-drying performance, and reach the application range. Wide, increase the effect of moisture absorption and quick-drying performance

Active Publication Date: 2021-05-14
JIANGSU HENGLI CHEM FIBER
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high elastic shrinkage yarn and its preparation method; the purpose is to solve the problems in the prior art that the two-component composite fiber has insufficient moisture absorption and quick-drying performance and stress concentration when realizing three-dimensional self-crimping

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
  • A kind of high elastic shrinkage yarn and preparation method thereof
  • A kind of high elastic shrinkage yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of preparation method of high elastic shrinkage yarn, its process is as follows:

[0036](1) FDY filaments are prepared from PET (intrinsic viscosity 0.55dL / g) and PBT (intrinsic viscosity 1.13dL / g) with a mass ratio of 40:60 according to the FDY process and the spinning process of circular sheath-core composite fibers , change the spinneret hole on the spinneret from circular to trilobal, and the trilobal spinneret is divided into two categories:

[0037] The ratio of the length of the three leaves of the first type of three-lobed spinneret hole is 1.0:1.1:2.5, the ratio of the corresponding three-leaf width is 1.5:1.5:1, and the ratio of the length and width of the shortest leaf is 2.7:1. The angle between the centerlines of two adjacent lobes is 120°;

[0038] The ratio of the length of the three leaves of the second type of three-lobed spinneret hole is 1.0:1.7:2.4 and the two long leaves are not equal in length. The corresponding ratio of the width of the t...

Embodiment 2

[0044] A kind of preparation method of high elastic shrinkage yarn, its process is as follows:

[0045] (1) FDY filaments are prepared according to the FDY process and the process of spinning circular sheath-core composite fibers from PET (intrinsic viscosity is 0.5dL / g) and PBT (intrinsic viscosity is 1dL / g) with a mass ratio of 30:70, Change the spinneret hole on the spinneret plate from circular to trilobal, and the trilobal spinneret is divided into two categories:

[0046] The ratio of the length of the three leaves of the first type of three-lobed spinneret hole is 1.0:1.2:2.5, the ratio of the corresponding three-leaf width is 1.5:1.5:1, and the ratio of the length and width of the shortest leaf is 2.5:1. The angle between the centerlines of two adjacent lobes is 120°;

[0047] The ratio of the length of the three leaves of the second type of three-leaf spinneret is 1.0:1.7:2.3 and the two long leaves are not equal in length. The corresponding ratio of the width of the...

Embodiment 3

[0053] A kind of preparation method of high elastic shrinkage yarn, its process is as follows:

[0054] (1) FDY filaments are prepared from PET (intrinsic viscosity 0.58dL / g) and PBT (intrinsic viscosity 1.2dL / g) with a mass ratio of 70:30 according to the FDY process and the spinning process of circular sheath-core composite fibers , change the spinneret hole on the spinneret from circular to trilobal, and the trilobal spinneret is divided into two categories:

[0055] The ratio of the length of the three leaves of the first type of three-lobed spinneret hole is 1.0:1.1:2.0, the ratio of the corresponding three-leaf width is 1.5:1.5:1, and the ratio of the length and width of the shortest leaf is 3.5:1. The angle between the centerlines of two adjacent lobes is 120°;

[0056] The ratio of the length of the three leaves of the second type of three-lobed spinneret hole is 1.0:1.6:2.2 and the two long leaves are not equal in length. The corresponding ratio of the width of the t...

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
shrinkageaaaaaaaaaa
stabilityaaaaaaaaaa
elastic recovery rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of high elastic shrinkage yarn. The holes are changed from circular to trilobal shape, and the ring blowing is used for cooling, and the arrangement of the trilobal spinneret holes on the spinneret is controlled to meet certain conditions, and the fibers are relaxed and heat treated to obtain high elastic shrinkage; The high elastic shrinkage yarn has a three-dimensional crimp shape, and is composed of multiple PET / PBT skin-core composite monofilaments with a trilobal cross section; the high elastic shrinkage yarn has a crimp shrinkage rate of 55-58%, and a crimp stability of 81 ~87%, the shrinkage elongation is 95~98%, the crimp elastic recovery rate is 90.5~95.6%; the breaking strength is ≥2.9cN / dtex, the breaking elongation is 35.0±3.5%, the total fineness is 75~150dtex, The shrinkage rate in boiling water is 10-12%.

Description

technical field [0001] The invention belongs to the technical field, and relates to a high elastic shrinkage yarn and a preparation method thereof. Background technique [0002] For chemical fibers, the properties of fibers made from different polymer materials are completely different, and each has its own advantages and disadvantages. Because of this, the properties of different fibers are combined to make products to give full play to their respective advantages. Among them, the side-by-side double The component composite fiber uses the difference in thermal shrinkage properties of the two components to make the fiber bend away from the fiber axis, presenting a permanent three-dimensional helical crimp, and obtain a crimp similar to wool fiber. This crimp is durable, stable and elastic. Good and other characteristics can give fabrics better elasticity, bulkiness and coverage, and are widely used in clothing. However, the polyester-type bicomponent composite fiber has hig...

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): D01D5/253D01D5/34D01F8/14D01D10/02D01D5/22
CPCD01D5/22D01D5/253D01D5/34D01D10/02D01F8/14
Inventor 王山水范红卫汤方明王丽丽
Owner JIANGSU HENGLI CHEM FIBER
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com