Multifunctional graphene printing and dyeing sizing agent and preparation method thereof

Abstract

The invention provides a multifunctional graphene printing and dyeing sizing agent and a preparation method thereof. The multifunctional graphene printing and dyeing sizing agent comprises the following components in percentage by weight: 15% to 25% of dye, 0.1% to 4% of a graphene raw material, 5% to 15% of a dyeing accelerant, 0.5% to 1% of a stabilizer, 0.5% to 1% of a pH modifier and the balance of water. Graphene is added into the printing and dyeing sizing agent, and plants can be of long-acting mite prevention, bacteria resistance, ultraviolet prevention and far infrared heating functions after fabrics are dyed. Moreover, the preparation method is simple and efficient, and can be widely used for producing the graphene printing and dyeing sizing agent.

Description

technical field [0001] The invention relates to the technical field of fabric dyes, in particular to a multifunctional graphene printing and dyeing paste and a preparation method thereof. Background technique [0002] Reactive dyes and vat dyes are usually used for dyeing fabrics. Reactive dyes have the characteristics of simple molecular structure, bright colors, and complete chromatograms. They have always been a very important kind of dyes. Reactive dyes generally contain a water-soluble group and one or more reactive groups. The water-soluble group is easy to ionize in water to generate dye anions. It has good stability to hard water and has better diffusibility and level dyeing performance. it is good. Reactive groups can be covalently bonded to cotton fabrics and have excellent washing fastness, so reactive dyes have been widely used in the dyeing of cotton fabrics. However, cotton fabrics are negatively charged in water, and there is a large Coulomb repulsion with ...

AI Technical Summary

Problems solved by technology

However, cotton fabrics are negatively charged in water, and there is a large Coulomb repulsion with reactive dyes, which makes it difficult for reactive dyes to approach cotton fibers, resulting in low dye uptake and low color fixation. In order to promote reactive dyes to dye cotton fabrics Usually, a large amount of inorganic salts (sodium chloride or anhydrous sodium sulfate) are added to the dyeing solution during dyeing. Although the introduction of these inorganic salts can promote the dyeing of reactive dyes, they cannot be converted into final products, and thus are rejected. Discharged into the environment, despite this, the dyeing rate and fixation rate of cotton dyed with reactive dyes are still very low, and the dyeing residue contains a large amount of dyes that do not react with cotton, causing serious waste and environmental pollution

Vat dyes mostly belong to polycyclic aromatic compounds, and the molecular structure does not contain water-soluble groups, so they cannot be dissolved in water. When dyeing, a large amount of strong reducing agent needs to be added under alkaline conditions to become soluble in water. In order to dye cotton fiber, it has comprehensive fastness, especially fastness to light and washing, but its fastness to rubbing is not good, so it is only used in specific fields such as denim dyeing , cannot be widely used

[0003] And the antibacterial property of dyestuff is relatively poor, usually in order to improve the antibacterial performance of dyestuff, can add antibacterial agent in dyestuff, as disclosed in the dyestuff, add antibacterial agent such as chitosan, chitin or insect antibacterial protein in patent CN105925007A , to prevent the growth and reproduction of various bacteria

However, its antibacterial effect is limited and cannot last for a long time

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