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Monascorubrin mordant dyeing method of silk textile

A technology of monascus rubin and dyeing method, which is applied in the field of light chemical industry, can solve the problems of poor dyeing quality and environmental protection, achieve the effects of improving dyeing percentage and color fastness, expanding application fields, and increasing dyeing affinity

Inactive Publication Date: 2012-12-05
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the technical problem that the existing natural dyes and traditional heavy metal ion mordants are used in conjunction with poor dyeing quality and environmental protection, thereby providing an environmentally friendly rare earth as a mordant, using monascus red for Silk fabric dyeing and processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1. Monascus rubin rare earth mordant dyeing of silk fabrics under different mordant dyeing methods.

[0025] The dyeing process conditions are: start dyeing at 30°C, heat up at 2°C / min to 80°C, and keep warm for 60 minutes; after the dyeing process is completed, wash with water and dry.

[0026] As can be seen from Table 1: the present invention uses rare earth as a mordant, and the monascus red pigment mordant dyeing of silk fabrics, under the above three mordant methods, the best dyeing effect with the same bath mordant method, and the color is darker, indicating that Under the same-bath mordant dyeing method, monascus rubin and mordant can fully undergo complexation reaction. The second is pre-mordant dyeing, and the color of post-mordant dyeing is lighter, which is due to the inability of some mordants to fully complex with monascus rubin. At the same time, the experimental results show that when praseodymium chloride is used for monascus rubin dyeing, the ...

Embodiment 2

[0029] Embodiment 2, the influence of different mordant dosages on dyeing effect.

[0030] The dyeing process conditions are: start dyeing at 30°C, heat up at 2°C / min to 80°C, and keep warm for 60 minutes; after the dyeing process is completed, wash with water and dry.

[0031] Under the condition that the amount of monascus rubin is 2%owf, pH=3~4, bath ratio is 1:30, and the amount of praseodymium chloride is 0.5, 1, 1.5, 2g / L respectively, the same bath mordant dyeing method is adopted, according to the The above dyeing process conditions are used for dyeing, and then the dyeing percentage and K / S value are measured, and the statistical results are shown in Table 2.

[0032] Table 2. Effects of different mordant dosages on dyeing percentage and K / S value.

[0033] Mordant dosage / g·L -1 Dyeing percentage / % K / S 0 56.84 2.5782 0.5 80.26 3.2366 1 87.61 4.8504 1.5 87.57 4.8361 2 87.68 4.9013

[0034] It can be seen from Table 2 t...

Embodiment 3

[0035] Embodiment 3, the influence of different dye liquor pH values ​​on the dyeing effect.

[0036] The dyeing process conditions are: start dyeing at 30°C, heat up at 2°C / min to 80°C, and keep warm for 60 minutes; after the dyeing process is completed, wash with water and dry.

[0037] Under the conditions of monascus rubin dosage 2%owf, praseodymium chloride concentration 1g / L, bath ratio 1:30, and pH 3; The dyeing process conditions were dyed, and the dyeing percentage and K / S value were measured. The statistical results are shown in Table 3.

[0038] Table 3. Effects of different pH values ​​on dyeing percentage and K / S value.

[0039] pH Dyeing percentage / % K / S 3 87.61 4.8504 5 81.32 3.6514 7 79.28 3.2824 9 57.81 2.7146 11 32.46 1.8044

[0040] It can be seen from Table 3 that the dyeing percentage and k / S value decrease with the increase of pH value, which shows that under acidic conditions, the mordant can better react...

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Abstract

The invention discloses a monascorubrin mordant dyeing method of silk textile, which is characterized by comprising the following step: using monascorubrin to perform mordant dyeing of silk textile by taking rare earth as mordant, wherein the use of the mordant is 0.5-2 g / L, and the concentration of the monascorubrin dye is 1-5% owf. The method uses the food coloring agent monascorubrin in the dyeing process of real silk, expands the application field of the monascus industry, can obtain relatively good color yield and color fastness of monascorubrin on the silk textile through the use of themonascorubrin, and realizes the green ecological staining process of silk textile.

Description

Technical field: [0001] The invention belongs to the field of light chemical industry, and relates to a method for dyeing silk fabrics with natural pigment monascus rubin, in particular to a method for carrying out ecological mordant dyeing of silk fabrics by using monascus rubin and a rare earth mordant. Background technique: [0002] Natural dyes are derived from animals, plants and minerals. Because of their good environmental compatibility, biodegradability, renewable raw materials, non-allergic and carcinogenic to the skin, they have attracted people's attention and favor. Although natural dyes have broad development prospects, there are still many problems in the development and application. [0003] Natural dyes are mostly derived from animals and plants, which makes it difficult to standardize their production. Natural dyes have little affinity to textile fibers, low color yield, long dyeing time, and poor color fastness. Most natural dyes use mordants when dyeing....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P3/04D06M11/17D06M101/10
Inventor 刘艳春白刚李蓓蓓
Owner SHAOXING UNIVERSITY
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