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Ultra-high temperature high pressure dyeing method for aramid fiber textile

A dyeing method and ultra-high temperature technology, applied in dyeing method, physical treatment, textile and papermaking, etc., can solve the problems of difficult dyeing, poor light fastness, high glass transition temperature, and achieve washing fastness and rubbing color. The effect of good fastness, bright color and high color fastness

Inactive Publication Date: 2008-08-06
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glass transition temperature of aramid fiber is very high, as high as 270°C, it is difficult to dye, and the light fastness is poor, and many uses require fabrics to have high-quality color. Therefore, it is of great significance to study aramid fiber dyeing.

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Take 100g of aramid fabric, add water at a bath ratio of 1:20, and add 5g·L -1 Sodium hydroxide, 2g L -1 Degreasing agent DO, then heated to 90°C, boiled for 60 minutes, then took out tap water, washed and dried, then treated with acetone for 60 minutes, and dried;

[0017] (2) Place the washed aramid fibers in a high-pressure tank, add 50mL / L benzophenone carrier in aromatic ketones and 50mL / L phenylethanol carrier in aromatic alcohols for 2 hours, place it under the plasma nozzle, and use Oxygen plasma treatment with a concentration of less than 2%, the treatment voltage is 14kV, the frequency is 2kHz, the treatment time is 5min, and the temperature is 150°C;

[0018] (3) Dyeing the aramid fabric after plasma treatment, cleaning and drying, the dyeing formula is: Disperse Red 343 dye concentration 3%, pH 3, temperature 180°C, pressure 1.0MPa, liquor ratio 1: 20,NaNO 3 and NaCl concentrations are 20g / L, and NaCl concentration is 50g / L, and the heating rate is 1°...

Embodiment 2

[0020] (1) Take 100g of aramid fabric, add water at a bath ratio of 1:25, add 7g L -1 Sodium hydroxide, 5g L -1 Degreasing agent DO, then heated to 100°C, boiled for 45 minutes, then took out tap water, washed and dried, then treated with acetone for 20 minutes, and dried;

[0021] (2) Treat the aramid fabric after cleaning and drying with acetone, add 80mL / L phenylethanol carrier in aromatic alcohol and phenetol carrier in 70mL / L aromatic ether for 1h, place it under the plasma nozzle, and use a concentration of less than 2% nitrogen plasma treatment, the treatment voltage is 10kV, the frequency is 4kHz, the treatment time is 1min, and the temperature is controlled at 100°C;

[0022] (3) Dye the aramid fiber fabric after plasma treatment, cleaning and drying. The dyeing formula is: acid red G dye concentration 4%, pH 5, temperature 160°C, pressure 0.8MPa, liquor ratio 1 : 30, the concentration of NaCl is 50g / L, the concentration of NaCl is 40g / L, and the heating rate is 2°C...

Embodiment 3

[0024] (1) Take 100g of aramid fabric, add water according to the bath ratio of 1:30, add 10g·L -1 Sodium hydroxide, 4g L -1 Degreasing agent DO, then heated to 95°C, boiled for 30 minutes, then took out tap water, washed and dried, then treated with acetone for 40 minutes, and dried;

[0025] (2) Put the washed aramid fiber into a high-pressure tank, add 120mL / L aromatic ether medium phenetole carrier for 1.5h, place it under the plasma nozzle, and use atmospheric pressure air plasma treatment, the treatment voltage is 12kV, the frequency The frequency is 3kHz, the processing time is 3min, and the temperature is controlled at 120°C;

[0026] (3) Dye the aramid fiber fabric after plasma treatment, cleaning and drying. The dyeing formula is: cationic red 2BL dye concentration 5%, pH 6, temperature 190°C, pressure 1.2MPa, liquor ratio 1 : 25, Na 2 SO 4 The concentration is 45g / L, the concentration of Yuanming powder is 45g / L, the heating rate is 3°C / min, after rising to 190°...

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Abstract

The invention discloses a method for dying kevlar fabrics under ultrahigh temperature and high pressure, which comprises: a preprocessing procedure under the ultrahigh temperature and the high pressure and a dying procedure under the ultrahigh temperature and the high pressure, wherein in the preprocessing procedure under the ultrahigh temperature and the high pressure, atmospheric pressure plasmas are used to process the kevlar fabrics for 1-5min, the processing temperature is 100-150DEG C, while in the dying procedure under the ultrahigh temperature and the high pressure, the temperature is 160DEG C-190DEG C, and the pressure intensity is 0.8-0.9MPa, wherein the plasma preprocessing procedure is an important procedure before the dying procedure under the ultrahigh temperature and the high pressure, since the processing for the plasma produces a plurality of active groups on the kevlar fabrics, which enables carriers to be better absorbed on the kevlar baric and thereby is beneficial for dying dye on the kevlar fabrics, simultaneously, the kevlar fabrics after dying under the ultrahigh temperature and the high pressure has high fastness, fresh color and soft hand feeling, and the washing color fastness and the abrasion color fastness of the kevlar fabrics are improved better.

Description

technical field [0001] The invention relates to a fabric dyeing method, in particular to an ultra-high temperature and high pressure dyeing method of an aramid fiber fabric. Background technique [0002] The chemical name of aramid fabric is poly-m-phenylene isophthalamide fiber, which belongs to aromatic polyamide. It was first successfully developed by DuPont Company of the United States in the 1960s. Due to the special structure of aramid fiber, aramid fiber fabric has excellent high temperature resistance and flame retardancy. and space suits, etc.), filter materials used at high temperatures (high temperature filter bags and filter felts), fireproof materials and liners for industrial high temperature resistant equipment, etc. However, the glass transition temperature of aramid fiber is very high, as high as 270°C, it is difficult to dye, and its light fastness is poor, and many uses require high-quality color of the fabric. Therefore, it is of great significance to st...

Claims

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Application Information

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IPC IPC(8): D06P3/24D06P1/16D06P1/39D06P1/673D06M10/00
Inventor 陈建勇冯新星郝新敏张建春郭玉海张华鹏
Owner ZHEJIANG SCI-TECH UNIV
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