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

A kind of dyeing method of aramid fiber

A kind of technology of aramid fiber and dyeing method, applied in the direction of dyeing method, fiber type, fiber treatment, etc., can solve the problems of poor dyeing effect, low dyeing rate of disperse dyes, etc., achieve enhanced washability, enhanced dyeing effect and efficiency , the effect of mild treatment environment

Active Publication Date: 2016-08-24
SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dyeing is an important treatment process for chemical fibers. Aramid fiber is usually dyed with disperse dyes. However, due to the nature of aramid fiber itself, the dyeing rate of disperse dyes is low and the dyeing effect is poor.

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

[0036] A kind of dyeing method of aramid fiber, comprises the following steps:

[0037] (1) Pretreatment: Pretreatment of aramid fibers, specifically: use urea 1g / L, phosphorus-free neutral deoiling spirit TF-104M 4.5 g / L, sodium dodecylbenzenesulfonate 1 g / L L, 60% hydrogen peroxide 2 g / L, treated in 30°C water bath for 2-3 min, the bath ratio is 20:1, the water bath is then heated up at a rate of 2°C / min, when the temperature rises to 90°C, Keep at high temperature for 30 minutes, then lower the temperature of the water bath at a rate of 1°C / min. When the temperature drops to 60°C, discharge the treated wastewater, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0038] (2) Pre-setting: Pre-setting the aramid fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 160°C, the speed is 20m / min, and the overfeed is 5%;

[0039] (3) Dyeing: Dyeing the aramid fiber after the pre-...

Embodiment 2

[0050] A kind of dyeing method of aramid fiber, comprises the following steps:

[0051] (1) Pretreatment: Pretreatment of aramid fibers, specifically: urea 1.2g / L, phosphorus-free neutral deoiling spirit TF-104M 5 g / L, sodium dodecylbenzenesulfonate 1.2 g / L L, 60% hydrogen peroxide 2.5 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up at a rate of 2.5°C / min, when the temperature rises to 90°C, the Keep at high temperature for 35 minutes, then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated waste water, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0052] (2) Pre-setting: Pre-setting the aramid fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 165°C, the speed is 25m / min, and the overfeed is 8%;

[0053] (3) Dyeing: Dyeing the aramid fiber...

Embodiment 3

[0064] A kind of dyeing method of aramid fiber, comprises the following steps:

[0065] (1) Pretreatment: Pretreatment of aramid fiber, specifically: urea 1.5g / L, phosphorus-free neutral degreasing spirit TF-104M 5.5 g / L, sodium dodecylbenzenesulfonate 1.5 g / L L, 60% hydrogen peroxide 3 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up at a rate of 3°C / min, when the temperature rises to 90°C, Keep at high temperature for 40 minutes, then lower the temperature of the water bath at a rate of 2°C / min. When the temperature drops to 60°C, discharge the treated waste water, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0066] (2) Pre-setting: Pre-setting the aramid fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 170°C, the speed is 30m / min, and the overfeed is 10%;

[0067] (3) Dyeing: Dyeing the aramid fiber after...

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

No PUM Login to View More

Abstract

The invention provides a method for dyeing aramid fibers, including pretreatment, presetting, dyeing, reduction cleaning, color fixing, softening treatment, drying, setting, calendering and winding. The invention adds DEET as a dye carrier, which enhances the dyeing effect and efficiency; at the same time, the conventional soda ash is replaced by a substitute alkali, which not only reduces the dosage, but also enhances the color fixing effect, so that the washability of the aramid fiber is further enhanced. ; Added reduction cleaning and color fixing process, which makes the dyeing fastness good. In the color fixing process, TCD‑R, which is green, environmentally friendly and formaldehyde-free, is used. After the color is fixed, the fiber is gradually dried, which greatly improves the fastness of the fiber; The softening process improves and enhances the color fastness and softness of the fabric, reduces the roughness of the fabric, and makes the fabric fluffy and elastic.

Description

technical field [0001] The invention relates to the field of chemical fibers, in particular to a method for dyeing aramid fibers. Background technique [0002] Chemical fibers are fibers with textile properties that are made from natural polymer compounds or artificially synthesized polymer compounds through the processes of preparing spinning dope, spinning and post-treatment. It has the advantages of light resistance, wear resistance, easy washing and drying, no mildew and no moths. Widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cords and parachutes, etc. [0003] Aramid fiber [mainly divided into para-aramid (MPIA) and meta-aramid (PPTA)] has the advantages of high strength and high modulus, high temperature resistance, excellent chemical resistance and flame retardancy, and is widely used in fire protection and aerospace and other fields. Dyeing is an imp...

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): D06P1/16D06P1/673D06P3/26D06P5/10D06P5/08D06M16/00D06M13/46D06M13/432D06M13/256D06M11/50D06L1/16D06B3/04D06B15/00D02J1/22D02J13/00D06B3/10D06C7/02D06M101/36
Inventor 陈志清
Owner SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION 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