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A method for evaluating the compatibility of multi-component dyes

An evaluation method and multi-component technology, applied in the direction of analysis of materials, material excitation analysis, instruments, etc., can solve the problems of inability to truly reflect the dyeing process, quantitative analysis of compatibility, complicated and incapable processes, and achieve objective and reasonable results. Simple, easy-to-improve effects

Active Publication Date: 2021-03-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects that the existing technology cannot truly reflect the actual color matching and dyeing process, the process is complicated and the compatibility cannot be quantitatively analyzed, and to provide a method that can truly reflect the actual color matching and dyeing process, the process is simple and can Multicomponent Dye Compatibility Evaluation Method for Compatibility Quantification

Method used

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  • A method for evaluating the compatibility of multi-component dyes
  • A method for evaluating the compatibility of multi-component dyes
  • A method for evaluating the compatibility of multi-component dyes

Examples

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Embodiment 1

[0036] A kind of multi-component dye compatibility evaluation method of the present invention, its specific steps are as follows:

[0037] (1) Determine the threshold;

[0038] Collect D of multi-component dyes whose compatibility has been determined max , the multi-component dyes whose compatibility has been confirmed include 50 groups of multi-component dyes with good compatibility and 50 groups of multi-component dyes with poor compatibility. Component dye D max The maximum value of 1 is recorded as the threshold value, and the group of multi-component dyes whose compatibility has been determined is not limited to this, as long as it is guaranteed to include 2 groups of multi-component dyes with good compatibility and 2 groups of multi-component dyes with poor compatibility can;

[0039] (2) Dyeing the fabric;

[0040] Blend reactive red 239 and reactive yellow 176 according to the mass ratio of 1:1 to form a dye solution with a concentration of 0.01g / L and a pH value o...

Embodiment 2

[0050] A kind of multi-component dye compatibility evaluation method of the present invention, its specific steps are as follows:

[0051] (1) Determine the threshold;

[0052] Same as embodiment 1;

[0053] (2) Dyeing the fabric;

[0054] Reactive Red 239 and Reactive Blue 194 are mixed according to the mass ratio of 1:1 to form a dye solution with a concentration of 150g / L and a pH value of 7.0 to dye cotton fabrics. The dyeing temperature is 70°C and the liquor ratio is 1: 50, neutral salt (Na 2 SO 4 ) dosage is 0g / L, and the process is dip-dyeing;

[0055] (3) Evaluation of compatibility;

[0056] (3.1) Test the initial dye uptake rate of each dye on the fabric per unit mass in the dyeing process, and use it as the K of each dye 0 value, which is:

[0057] First, the Raman spectrometer is used to monitor the data of the concentration of each dye in the dyeing solution over time, and then the data is processed to obtain the data of the amount of each dye on the fabri...

Embodiment 3

[0064] A kind of multi-component dye compatibility evaluation method of the present invention, its specific steps are as follows:

[0065] (1) Determine the threshold;

[0066] Same as embodiment 1;

[0067] (2) Dyeing the fabric;

[0068] Reactive Yellow 176 and Reactive Blue 194 are blended according to the mass ratio of 1:1 to form a dye solution with a concentration of 200g / L and a pH value of 7.0 to dye cotton fabrics. The dyeing temperature is 10°C and the liquor ratio is 1: 200, neutral salt (Na 2 SO 4 ) dosage is 300g / L, and the process is cold pad-batch dyeing;

[0069] (3) Evaluation of compatibility;

[0070] (3.1) Test the initial dye uptake rate of each dye on the fabric per unit mass in the dyeing process, and use it as the K of each dye 0 value, which is:

[0071] First, the Raman spectrometer is used to monitor the data of the concentration of each dye in the dyeing solution over time, and then the data is processed to obtain the data of the amount of ea...

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Abstract

The invention relates to a method for evaluating the compatibility of multi-component dyes. The method comprises the steps of preparing a dye solution from the multi-component dyes and then dyeing fabric; testing initial dyeing rates of various dyes on the fabric per unit mass in the dyeing process and taking the initial dyeing rates as K0 values of the dyes; comparing an absolute value Dmax of the difference between the maximum value and the minimum value of the K0 value of each multi-component dye with a threshold; and if the absolute value Dmax is greater than the threshold, representing that the compatibility is poor, or else, representing that the compatibility is good, wherein the threshold is obtained by collecting Dmax of multiple groups of multi-component dyes with determined compatibility, sorting the Dmax in an ascending or descending order and selecting the maximum value of the Dmax of the multi-component dyes with good compatibility. According to the method provided by theinvention, actual color-matching and dyeing processes can be really reflected; the compatibility is quantified; the method is simple; the result is objective and reasonable; improvement of a dyeing formula and optimization of a dyeing process are facilitated; and the method has a great application prospect.

Description

technical field [0001] The invention belongs to the technical field of dyeing performance evaluation, and relates to a multi-component dye compatibility evaluation method. Background technique [0002] At present, there are many evaluation indexes of dyeing performance, such as directness, dyeing rate and so on. Before the color matching of dyes is applied, it is necessary to evaluate the dyes to ensure the compatibility of the dyes. At present, there are many evaluation methods for the compatibility of multi-component dyes, such as bleeding circle, ratio shift value, dyeing characteristic curve and dyeing characteristic parameters, etc. [0003] Among them, the most commonly used evaluation methods are the permeation circle and the ratio shift value, which are directly tested after the dye is prepared, and the compatibility of the dye is judged by comparing the permeation circle and the ratio shift value, although it can be used to a certain extent. However, the interacti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65G01N33/00
CPCG01N21/65G01N33/00
Inventor 毛志平代亚敏徐红钟毅张琳萍王碧佳隋晓锋陈支泽冯雪凌
Owner DONGHUA UNIV
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