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Preparation method of dyeing-assisted composition

A technology of composition and acetophenone, which is applied in the field of preparation of dyeing aid composition, can solve the problems of high glass transition temperature of aramid fibers, low dye uptake rate, and difficult dyeing of dyes, so as to improve color fastness and increase The effect of dye uptake

Active Publication Date: 2015-01-21
泰州万诺纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a synthetic fiber, aramid fiber has extremely high strength and toughness, as well as excellent high temperature resistance, acid and alkali resistance, but the disadvantage is that aramid fiber has a high glass transition temperature, and it is difficult to dye dyes with conventional synthetic fiber dyeing methods. The solution is generally to pretreat the aramid fiber with a swelling agent before dyeing, or to use the carrier dyeing method. Even so, there are still problems such as relatively low dyeing rate and poor color fastness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 80 g of acetophenone, 6 g of emulsifier OP-10 and 30 g of dimethylol dihydroxyethylene urea into 184 g of water, stir for 30 minutes, and obtain a dyeing aid evenly.

[0013] Dyeing process: aramid fabric pre-treatment→washing→drying→dyeing→washing→post-treatment→washing→drying

[0014] Among them, pretreatment: treatment solution (sodium hydroxide 10g / L, degreasing agent 2g / L), temperature 100°C, time 30 minutes, bath ratio 1:50.

[0015] When dyeing, the dye solution formula: Maxillon red 6wt%, sodium nitrate 2wt%, dyeing aid 30wt%, dyeing conditions: pH value = 4 (adjusted with acetic acid), temperature 120 ° C, time 50 minutes, liquor ratio 1: 20.

[0016] Post-treatment: treatment liquid (turpentine oil 5g / L), pH value 4, temperature 85°C, time 20 minutes, liquor ratio 1:40.

[0017] After dyeing, the K / S value is 31, the wet rubbing fastness is grade 4, and the dry rubbing fastness is grade 5.

Embodiment 2

[0022] Add 80 g of acetophenone, 6 g of emulsifier OP-10 and 40 g of dimethylol dihydroxyethylene urea into 174 g of water, stir for 30 minutes, and obtain a dyeing aid after being uniform.

[0023] Dyeing process: aramid fabric pre-treatment→washing→drying→dyeing→washing→post-treatment→washing→drying

[0024] Among them, pretreatment: swelling agent SW-A, time 50 minutes.

[0025] When dyeing, the dye solution formula: Disperse Red 58 5wt%, sodium chloride 2wt%, dyeing aid 20wt%, dyeing conditions: pH value = 5 (adjusted with acetic acid), temperature 120 ° C, time 50 minutes, liquor ratio 1: 20.

[0026] Post-treatment: treatment liquid (soap powder 2g / L), temperature 95°C, time 15 minutes.

[0027] After dyeing, the K / S value is 41, the wet rubbing fastness is grade 4, and the dry rubbing fastness is grade 5.

Embodiment 3

[0032] Add 80 g of acetophenone, 7 g of sodium dodecylbenzenesulfonate and 16 g of dimethylol dihydroxyethylene urea into 197 g of water, stir for 30 minutes, and obtain a dyeing aid after being uniform.

[0033] Dyeing process: aramid fabric pretreatment→washing→drying→dyeing→washing→post-treatment→washing→drying

[0034] Among them, pretreatment: treatment solution (sodium hydroxide 10g / L, degreasing agent 2g / L), temperature 100°C, time 30 minutes, bath ratio 1:50.

[0035] When dyeing, the dye solution formula: Maxillon red 6wt%, sodium nitrate 2wt%, dyeing aid 30wt%, dyeing conditions: pH value = 4 (adjusted with acetic acid), temperature 120 ° C, time 50 minutes, liquor ratio 1: 20.

[0036] Post-treatment: treatment liquid (turpentine oil 5g / L), pH value 4, temperature 85°C, time 20 minutes, liquor ratio 1:40.

[0037] After dyeing, the K / S value=30.2, the wet rubbing fastness is grade 4, and the dry rubbing fastness is grade 5.

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Abstract

The invention discloses a preparation method of dyeing-assisted composition. The preparation method comprises the steps of adding acetophenone, an emulsifying agent and dimethylol dihydroxy ethylene urea into water, and stirring to be uniform, wherein the mass ratio of the acetophenone to the dimethylol dihydroxy ethylene urea is 1:(0.2-0.5). Compared with the dyeing-assisted composition prepared by the existing swelling method or the carrier dyeing method, the dyeing-assisted composition prepared by the method can remarkably improve the dye-uptake of the aramid fiber in dyeing and can improve the color fastness.

Description

technical field [0001] The invention relates to a preparation method of a dyeing aid composition. Background technique [0002] As a synthetic fiber, aramid fiber has extremely high strength and toughness, as well as excellent high temperature resistance, acid and alkali resistance, but the disadvantage is that aramid fiber has a high glass transition temperature, and it is difficult to dye dyes with conventional synthetic fiber dyeing methods. The solution is generally to pretreat the aramid fiber with a swelling agent before dyeing, or to use the carrier dyeing method. Even so, there are still problems such as relatively low dyeing rate and poor color fastness. Contents of the invention [0003] The technical problem to be solved by the invention is to overcome the existing defects and provide a method for preparing a dyeing aid composition for improving the dyeing effect of aramid fibers. [0004] In order to solve the problems of the technologies described above, the ...

Claims

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Application Information

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IPC IPC(8): D06P1/651D06P1/642D06P3/24
Inventor 吴洪良
Owner 泰州万诺纺织科技有限公司
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