Biological dye containing prodigiosins, preparation method thereof and application thereof

Abstract

The invention relates to a biological dye containing prodigiosins. The dye is prepared through mixing prodigiosins, a nonionic and / or ionic surfactant compound agent and zirconium beads with a mass ratio of 1:0.2:100, and a dispersion system has a mean particle size of less than 1 mum in water. The biological dye is mainly suitable for dying various chemical fibers. Dyed fabrics have the characteristics of good washing fastness and rub fastness, and brilliant color, and also have a favorable anti-bacterium performance with an anti-bacterial rate of more than 90%. The dye, which has the advantages of simple extraction technology, ecological environmental protection and convenient preparation, is the biological dye with good performances and has a good application prospect.

Description

technical field [0001] The invention relates to a composition for dyeing, in particular to a biological dye containing prodigiosin, a preparation method and its application in textile dyeing. Background technique [0002] Under the influence of the global wave of green environmental protection, natural plant dyeing has returned to people's vision. Natural dyes have the characteristics of ecological balance: natural and bright color, high safety, non-toxic and have certain nutritional value and pharmacological health effects, as bio-renewable resources, the production process is environmentally friendly, and there is no three-waste treatment problem, so it has re-emerged in the dye industry. focus on. At present, some dye companies in countries such as India, Italy and Germany are developing and producing natural plant dyes, but there are serious problems in obtaining plant dyes. Because the pigment content in dye plants is relatively small, if you want to obtain enough dyes...

AI Technical Summary

Problems solved by technology

At present, some dye companies in countries such as India, Italy, and Germany are developing and producing natural vegetable dyes, but there are serious problems in obtaining vegetable dyes. Due to the low pigment content in dye plants, they must be picked in large quantities if they want to obtain enough dyes. and cutting down plants, causing damage to the ecological environment, which violates the original intention of using plant dyes to achieve environmental protection

In addition, there are also some main problems in textile dyeing of plant natural dyes: ①Poor dyeing repeatability

The vast majority of commonly used natural dyes are plant dyes. Even if it is the same plant, the composition and color of the pigment will be affected by different origins, climate conditions and different collection times, making it difficult to standardize mass production, which will inevitably lead to dyes. Poor staining reproducibility

Although the shade of the dyed fiber can be adjusted by using different mordants, the reproducibility of the dyeing is still poor

② Poor stability of natural dyes

Natural dyes are greatly affected by environmental conditions (pH value, light, temperature), and are easy to decompose or oxidize and fade, resulting in unstable color and light

③ poor color fastness

Due to the inherent instability of the chromophoric group of natural dyes, the natural dyes have poor washing and light fastness. Although in the dyeing of natural dyes, the use of mordants and some post-treatments can improve the color fastness, most of the traditional mordants contain Heavy metal ions, many of which are included in the list of banned eco-textiles

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