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

Nylon 66/tackified polyester composite sheath core fiber and preparation method thereof

A technology of skin-core fiber and nylon, which is applied in the field of nylon 66/tackified polyester composite skin-core fiber and its preparation, can solve the problems of high cost of production materials, achieve improved service life, high water transfer performance, and reduce production costs Effect

Active Publication Date: 2010-11-10
JIANGSU ZHONGSHI FIBER CO LTD
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with nylon 66, the price of tackified polyester is relatively low. Generally, the price of nylon 66 slices is 2.5 times that of tackified polyester slices. Therefore, nylon 66 is used as the production material cost of industrial cloth. higher

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
  • Nylon 66/tackified polyester composite sheath core fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Nylon 66 with relative viscosity 2.7 and intrinsic viscosity 1.0 tackified polyester, with 70% (weight) nylon 66 and 30% (weight) tackified polyester, sheath-core composite, melt spinning, spinning temperature is 300 ℃ , the spinning pressure is 30.0MPa, the cooling air temperature and rheumatism wind speed is 18℃, 85%, 1.2m / s, the spinning speed is 500m / min, the oil bath drafting ratio is 3.8, 90~120℃ steam drafting, steam drafting The draw ratio was 1.1, resulting in a finished fiber of 33 dtex.

Embodiment 2

[0022] With relative viscosity 2.7 nylon 66 and intrinsic viscosity 0.7 tackifying polyester, with the nylon 66 of 70% (weight) and the tackifying polyester of 30% (weight), sheath-core composite, melt spinning, other process conditions are the same as embodiment 1, so as to get the finished fiber of 33dtex.

Embodiment 3

[0024] With relative viscosity 2.7 nylon 66 and intrinsic viscosity 1.0 tackifying polyester, with the nylon 66 of 50% (weight) and the tackifying polyester of 50% (weight), sheath-core composite, melt spinning, other process conditions are the same as embodiment 1, so as to get the finished fiber of 33dtex.

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
Breaking strengthaaaaaaaaaa
Linear densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a nylon 66 / tackified polyester composite sheath core fiber and a preparation method thereof. The fiber comprises the following components by weight percent: 15-85% of nylon 66 and 85-15% of tackified polyester, wherein the nylon 66 serving as a sheath has a relative viscosity of 2.5-45.0% while the tackified polyester serving as a core has a relative viscosity of no less than 0.64%. The fracture strength of the fiber is no less than 3.6cN / dtex, the elongation at break thereof is no less than 80%, and the linear density thereof is 1.1-143dtex. The preparation method is as follows: compounding the nylon 66 into the sheath at the temperature of 300-310 DEG C and at the pressure of 5.0-35.0MPa, compounding the tackified polyester into the core at the temperature of 290-300 DEG C and at the pressure of 15-35.0MPa, and spinning, wherein the temperature, humidity and speed of cooling air are respectively15-28 DEG C, 75-100% and 0.8-2.5m / s, and the spinning speed is 400-1500m / s; drawing in an oil bath at the temperature of 50-90 DEG C, wherein the oil bath drawing times is 3.0-5.0; and drawing with steam at the temperature of 90-120 DEG C, wherein the steam drawing times is 1.1-1.5. The fiber can satisfy requirements on raw material fibers from customers like industrial woolen cloth, and greatly lowers the production cost.

Description

technical field [0001] The invention belongs to the field of composite fibers, in particular to a nylon 66 / tackifying polyester composite sheath-core fiber and a preparation method thereof. Background technique [0002] The existing composite sheath-core fiber is usually used as a low-melting point thermal bonding fiber, mainly with specifications such as 1.5-9.0dtex×3-64mm, and is processed into dust-free paper of corresponding specifications through hot air, hot rolling and other processes in use , Non-woven fabrics, widely used in the production of sanitary napkins, children's diapers, adult diapers and other products. The application of this product series and related manufacturing technology have certain limitations. With the expansion of the application field of composite fiber, the follow-up and upgrading of manufacturing technology, and the diversification of customer needs, new composite fiber products have entered the field of industrial yarn. The technical chara...

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): D01F8/12D01F8/14D01D5/34D01D5/08
Inventor 单正进
Owner JIANGSU ZHONGSHI FIBER CO LTD
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