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Method for determining reactive dye fixation rate through K/S value coating method

A technology of reactive dyes and color fixation rate, which is applied in the field of textile printing and dyeing, can solve the problems of determining the color fixation rate of reactive dyes, cumbersome operation, poor accuracy, etc., and achieve the effect of accurate color fixation rate of reactive dyes and direct method

Inactive Publication Date: 2015-12-16
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method for determining the color fixation rate of reactive dyes is the residual liquid method of spectrophotometer, which is cumbersome to operate and has poor accuracy.
[0003] In recent years, electronic computer color measurement technology based on colorimetry and computer has been applied to the world and my country's textile printing and dyeing industry. The K / S value to express the dyeing percentage has been widely recognized in the industry, but K / S value has not been used yet. Report on Determination of Color Fixation Rate of Reactive Dyes by S Value Coating Method

Method used

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  • Method for determining reactive dye fixation rate through K/S value coating method
  • Method for determining reactive dye fixation rate through K/S value coating method
  • Method for determining reactive dye fixation rate through K/S value coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1: Coating the fabric with reactive dyes by the dye coating method, and measuring the (K / S) of the coated fabric 0 ;

[0048] A. Prepared coating method to obtain 100% color fixation (K / S) of dyed sample 0 The dye solution:

[0049] Take 0.01g of reactive red B-2BF, 1g of salt and 0.5g of soda ash, and use 2ml of distilled water to make a slurry dye solution.

[0050] B. Coating the fabric with reactive dyes:

[0051] Spread 1g of pure cotton fabric evenly on a glass plate with a smooth surface, absorb the dye solution with a rubber dropper, apply all the dye solution evenly on the front and back sides of the fabric, and fix the color at 50°C for 40 minutes.

[0052] C. Determination of K / S value

[0053] After step B is completed, it is dried, and at a maximum absorption wavelength of 540nm, the K / S value of the fabric measured by an electronic computer color measuring and matching instrument is 8.19, which is (K / S) 0 .

[0054] Step 2. Determination after...

Embodiment 2

[0073] Step 1: Coating the fabric with reactive dyes by the dye coating method, and measuring the (K / S) of the coated fabric 0 ;

[0074] A. Prepared coating method to obtain 100% color fixation (K / S) of dyed sample 0 The dye solution:

[0075] Take 0.02g of reactive red B-2BF, 1g of salt and 0.5g of soda ash, and mix it with 2ml of water to make a slurry dye solution.

[0076] B. Coating the fabric with reactive dyes:

[0077] Spread 1g of pure cotton fabric evenly on a glass plate with a smooth surface, absorb an appropriate amount of dye solution with a rubber dropper, apply all the dye solution evenly on the front and back sides of the fabric, and fix the color at 50°C for 40 minutes.

[0078] C. Determination of K / S value

[0079] After step B is completed, it is dried, and at a maximum absorption wavelength of 540nm, the K / S value of the fabric measured by an electronic computer color measuring and matching instrument is 12.20, which is (K / S) 0 .

[0080] Step 2....

Embodiment 3

[0099] Step 1: Coating the fabric with reactive dyes by the dye coating method, and measuring the (K / S) of the coated fabric 0 ;

[0100] A. Prepared coating method to obtain 100% color fixation (K / S) of dyed sample 0 The dye solution:

[0101] Take 0.04g of reactive red B-2BF, 1g of salt and 0.5g of soda ash, and mix it with 2ml of water to make a slurry dye solution.

[0102] B. Coating the fabric with reactive dyes:

[0103] Spread 1g of pure cotton fabric evenly on a glass plate with a smooth surface, absorb the dye solution with a rubber dropper, apply all the dye solution evenly on the front and back sides of the fabric, and fix the color at 50°C for 40 minutes.

[0104] C. Determination of K / S value

[0105] After step B is completed, it is dried, and at a maximum absorption wavelength of 540nm, the K / S value of the fabric measured by an electronic computer color measuring and matching instrument is 17.58, which is (K / S) 0 .

[0106] Step 2. Determination after ...

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Abstract

The invention relates to a method for determining the reactive dye fixation rate through a K / S value coating method. The method is characterized in that the fixation rate is calculated with a formula that the fixation rate=(K / S)<determined> / (K / S)<0>*100%, wherein (K / S)<determined> represents a K / S value of a dyed fabric of which the reactive dye fixation rate needs to be determined and can be directly determined with the dyed fabric, and (K / S)<0> represents a K / S value of a dyed fabric of which the reactive dye fixation rate is 100 percent. The method for determining the reactive dye fixation rate has the certain practicability and is easy and convenient to operate and more suitable for the informationization development requirements of the textile printing and dyeing industry.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a method for measuring the color fixation rate of reactive dyes by a K / S value coating method. Background technique [0002] Reactive dyes are currently the main dyes used in the printing and dyeing of cellulose fiber textiles in the printing and dyeing industry. The color fixation rate of reactive dyes is an important index to judge the degree of covalent bond between reactive dyes and cellulose fibers, and it indicates the utilization rate of reactive dyes. At present, the method for determining the color fixation rate of reactive dyes is the residual liquid method of spectrophotometer, which is cumbersome to operate and poor in accuracy. [0003] In recent years, electronic computer color measurement technology based on colorimetry and computer has been applied to the world and my country's textile printing and dyeing industry. The K / S value to express the...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 胡雪敏张海燕徐智策
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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