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

Low temperature producing method for nylon fiber

A nylon fiber and nylon technology, applied in the direction of fiber chemical characteristics, melt spinning method, single-component polyamide artificial filament, etc., can solve the problems of high energy consumption, high process requirements, high energy consumption, etc., and improve safety , reduce costs, reduce energy consumption

Inactive Publication Date: 2007-10-17
HANGZHOU NORMAL UNIVERSITY +1
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, in order to keep the nylon in a molten state, it needs to be continuously heated, which will consume a lot of energy, especially the spinneret or spinneret of the spinning equipment, the temperature is generally as high as 280 ° C, and biphenyl is generally used in practice. Heating it, the boiling point of biphenyl is about 265°, so it is necessary to increase the boiling point of biphenyl to avoid its boiling and vaporization, which not only requires high energy consumption, but also requires pressure-resistant equipment
These factors make the production of nylon fibers expensive and process-demanding using existing melt-spinning methods

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

[0029] 10 parts of ZnSO 4Heat and melt together with 100 parts of nylon 6 slices, the melt is extruded by a screw extruder and sent to the spinning machine, the melt is quantitatively pressed into the spinning part by a metering pump, and the melt is sprayed through the spinneret holes on the spinneret The body flows out in a filament state, and is oiled and wound to obtain a coiled wire. The temperatures of the melt in each zone of the screw extruder are 230°C, 245°C, 245°C, and 250°C, and the spinning temperature is 230°C. The hole diameter of the spinneret used is 0.35 mm, the length is 0.7 mm, and the winding speed is 1000 m / min. The fineness of the obtained winding yarn was 8 deniers, and the thermal drawing was performed 3.7 times at a temperature of 120° C. to obtain nylon 6 fibers with a fineness of 3 deniers. Its strength is 3.7cN / dtex and its elongation at break is 30%.

Embodiment 2

[0031] Prepare FeCl using a twin-screw extruder according to the ratio in Table 1 3 Additive masterbatch, where the temperatures of each zone of the extruder are: 260°C, 305°C, 290°C and 290°C.

[0032] ingredients

parts by mass

Nylon 6 slices

80

Metal salt MnCl 2

100

Antioxidant (Antioxidant 1010 / Antioxidant 168)

1

[0033] The resulting MnCl 2 The additive masterbatch and nylon 6 chips are dried in a vacuum oven to remove moisture and small molecular substances. The drying temperature is between 90-100°C, and the drying time is 24-48 hours.

[0034] Then FeCl 3 The additive masterbatch and nylon 6 slices are mixed at a weight ratio of 5:1000 for heating and melting. The melt is extruded by a screw extruder and then sent to the spinning machine. The melt is quantitatively pressed into the spinning part by a metering pump. The spinneret holes on the wire plate flow out the melt in a thin filament state, and the coiled ...

Embodiment 3

[0036] Prepare CuBr using a twin-screw extruder according to the ratio of Table 2 2 Additive masterbatch, where the temperatures of each zone of the extruder are: 265°C, 295°C, 290°C and 290°C. .

[0037] ingredients

parts by mass

Nylon 6 slices

80

metal salt CuBr 2

80

[0038] The resulting CuBr 2 The additive masterbatch and nylon 6 chips are dried in a vacuum oven to remove moisture and small molecular substances. The drying temperature is between 90-100°C, and the drying time is 24-48 hours.

[0039] Then CuBr 2 The additive masterbatch and nylon 6 slices are mixed and heated at a weight ratio of 2:100, and the melt is extruded by a screw extruder and then sent to the spinning machine. The melt is quantitatively pressed into the spinning part by a metering pump, and the spinning The spinneret holes on the plate flow out the melt in a filament state, and the oil is wound to obtain a coiled wire. The temperature of the melt in...

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
Strengthaaaaaaaaaa
Strengthaaaaaaaaaa
Strengthaaaaaaaaaa
Login to View More

Abstract

The present invention discloses a technology field relating to the preparation method of textile materials, especially to a process for for low temperature production of nylon fibre. Said process comprises the steps of adding a chemical compound of transient metal during or before nylon melting course and then spinning the obtained molten mass at a low temperature of 160-250 DEG C.Adding auxiliaries of oxidation preventives, ultraviolet absorbents, light-stability agents and anstatic agents therein before the melting course or during the melting course will result in more excellent effects. The method has a lower energy consumption and a lower cost, and its industry operations are more convenient and safe, will find wide use in industries such as garments and intertexture.

Description

technical field [0001] The invention relates to the technical field of a method for preparing textile materials, in particular to a method for producing nylon fibers at low temperature. Background technique [0002] Generally speaking, the polymer materials that can be spun include nylon (polyamide), polypropylene (polypropylene), polyester (polyethylene terephthalate) and acrylic (polyacrylonitrile). These materials can be spun to form filaments for use in the textile industry. Melt spinning is a commonly used spinning method, and fiber filaments suitable for spinning can be obtained by melt spinning. Generally, fiber filaments obtained by the melt spinning method can reach a fineness degree (fineness) of several deniers. The products obtained by weaving and weaving with such fiber filaments, such as clothing fabrics, have many advantages, so the market application space is broad. [0003] Nylon fiber fabric has the characteristics of sweat absorption, light weight, good...

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): D01F6/60D01F1/10D01D5/08
Inventor 李慧珍来国桥吴燕婕蒋剑雄章成峰刘毓海邱化玉黄昆刘少轩伍川倪勇刘玉峰齐剑李龙波王明超陆达天马清芳徐端平潘庆华赵莹王笃金徐怡庄吴瑾光徐端夫
Owner HANGZHOU NORMAL UNIVERSITY
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