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A kind of biomass auxiliary agent and its preparation method and application

A technology of biomass and auxiliaries, used in dyeing methods, textile and paper making, resistance to vector-borne diseases, etc., can solve problems such as dyeing uniformity and poor color fastness

Active Publication Date: 2022-05-17
CHINA TEXTILE ACAD JIANGNAN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The application provides a biomass additive and its preparation method and application to improve the dyeing uniformity and poor color fastness of red vegetable dyes

Method used

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  • A kind of biomass auxiliary agent and its preparation method and application
  • A kind of biomass auxiliary agent and its preparation method and application
  • A kind of biomass auxiliary agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Biomass additive formula is as follows (by weight percentage):

[0035] Chitosan 1%

[0036] Acetic acid 0.12%

[0037] Tea polyphenols 0.3%

[0038] Potassium aluminum sulfate / anhydrous sodium chloride (mass ratio 3:1) 1%

[0039] The balance is deionized water.

[0040] The preparation method of biomass additives is as follows:

[0041] Step (1): Accurately weigh a certain amount of chitosan, and make a solution with a solid content of 1% with 50°C deionized water;

[0042] Step (2): Add 0.12% acetic acid in proportion to the chitosan solution prepared in step 1 to promote the dissolution of the chitosan solution, and the viscosity is 12 Mpa.s.

[0043] Step (3): After adding 0.3% tea polyphenols and 1% aluminum potassium sulfate / sodium chloride on the basis of step 2, place it on a magnetic stirrer and stir evenly for later use.

Embodiment 2

[0070] Biomass additives are prepared as in Example 1, the difference is that the proportion of chitosan in the biomass additives is adjusted as shown in Table 2, and the method of Application Example 1 is used to dye cotton / Hisel blended fabrics, To study the effect of chitosan content on the dyeing effect of fabrics, according to the national standard GB31701-2015, the color fastness and K / S value were tested respectively, and Table 2 was obtained.

[0071] Table 2, the impact of the content of chitosan on the dyeing effect

[0072]

[0073] Table 2 analysis: as can be seen from the data in Table 2, as the chitosan content increases from 1% to 6%, the K / S value of the fabric increases thereupon; and the color fastness to rubbing is lower than 2% at the chitosan content When the content of chitosan exceeds 2%, it shows a downward trend; the color fastness to perspiration, especially when the color fastness to acid and alkali changes exceeds 2%, the color difference is obvi...

Embodiment 3

[0075] Biomass additives are prepared as in Example 1, the difference is that the organic acid and its proportion in the biomass additives are adjusted as shown in Table 3, and the method of Application Example 1 is used to dye the cotton / Hisel blended fabric, According to the national standard GB31701-2015, the effect of organic acid content on the dyeing effect of fabrics was tested from color fastness and K / S value, etc., and Table 3 was obtained.

[0076] Table 3. Effect of selection and content of organic acid on dyeing effect

[0077]

[0078]

[0079] Table 3 analysis: as can be seen from the data in table 3, embodiment 1 is compared with embodiment 2-1 to 2-4 as preferred process, and along with the raising of acetic acid content, the K / S value of fabric is rising trend, and the fabric's The color fastness to rubbing increases gradually with the increase of the acetic acid content, and the color fastness to perspiration of the fabric is around level 3, and the ch...

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Abstract

The invention discloses a biomass additive and its preparation method and application, which is characterized in that it comprises the following composition by weight percentage: chitosan 1%-5%; organic acid 0.1%-0.3%; tannic acid 0.2-0.5%; inorganic salt 1%-3%; the balance is deionized water; a kind of biomass additive prepared by the present invention is applied to the dyeing process of cellulose fiber fabric plant dyes, and can improve the dyeing fastness of plant dyes. Compared with the traditional dyeing process of vegetable dyes, the present invention combines the chemical properties of hematoxylin and madder dyes, and uses biomass additives as the medium to organically combine dyes, additives and fibers. It is not only beneficial to improve the color fastness, but also saves necessary dyeing and chemical auxiliaries and reduces environmental pollution during the dyeing process.

Description

technical field [0001] The application relates to a biomass auxiliary agent and its preparation method and application, specifically belonging to the technical field of dyeing auxiliary agents. Background technique [0002] In recent years, as consumers pay more and more attention to the ecological environment and their own health, environmentally friendly, non-toxic and harmless biomass products have entered people's field of vision, such as natural pigments extracted from plants or animals instead of synthetic dyes Used for dyeing fabrics, or using eco-friendly auxiliaries in the dyeing process, etc. For a long time, the large-scale application of vegetable dyes has not been realized due to the low color fastness and poor reproducibility of dyed fabrics, which further restricts the development. In view of this, the present application provides a method for improving the dyeing quality of red plant dyes for plant dyes, especially conventional red plant dyes, such as madder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/48D06P1/651D06P1/653D06P1/673D06P1/34D06P3/60
CPCD06P1/48D06P1/6533D06P1/65125D06P1/67358D06P1/6735D06P1/67341D06P1/34D06P3/60Y02A50/30
Inventor 黄逸武李俊玲黄荣华吕水君陈诗瑶范雪荣
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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