Process for transfer-printing natural plants

Abstract

The invention relates to a process for transfer-printing natural plants. The process comprises the following steps: A, picking selected flowers, leaves, stems, roots and seeds in a growing period at the normal temperature in a classifying manner; water-washing and airing the flowers, the leaves, the stems, the roots and the seeds for later use; B, splicing a conventionally treated gray fabric into flower types in various shapes; C, transferring juice of plants to a fabric by a calender according to the shapes of the plants and a designed effect picture; D, soaking a towel sample in water at 60 DEG C for 20 minutes by 2% ferrous sulfate FeSO3; dehydrating and carrying out air oxidation for color development; then, carrying out water washing to remove surface dye at 40 DEG C with the bath ratio of 1:10; color fixation, namely changing the liquid; soaking for 30 minutes by 1.2% copper sulfate CuSO4 at the normal temperature; discharging out from a pot and dehydrating; fixing the color flower types to the fabric; E, finishing and sizing, and finally packaging according to a conventional process. According to the process, plant materials can be fully utilized and give play to the maximum effect, thereby enhancing the health-care effect while adding the sense of beauty for a product.

Description

technical field [0001] The invention relates to a technology for transfer printing and dyeing of natural plants to knitting and textiles, especially a technology for transfer printing of natural plants. Background technique [0002] At present, there are two main dyeing processes commonly used: one is chemical dyeing. Various chemical dye auxiliaries are used in the process, which are allergic to the skin and irritating, which is not beneficial to people's health. From the perspective of environmental protection, the dyeing wastewater is not easy to treat and will cause serious environmental pollution. The other is natural plant dyeing, which generally extracts pigments from natural plants by solvent extraction, and then dyes them on fabrics. 1. The content of this natural plant dye is low, and the amount of plants consumed during extraction is large, which is not conducive to environmental protection. The treatment of three wastes after extraction is also a problem, and th...

AI Technical Summary

Problems solved by technology

1. The content of this natural plant dye is low, and the amount of plants consumed during extraction is large, which is not conducive to environmental protection. The treatment of three wastes after extraction is also a problem, and the cost is high

2. Except for a few natural plant dyes, most of them have poor color fastness. Even with mordant, the fastness is still unsatisfactory, and many natural plant dyes will change color or become gray during washing and use, especially When color matching, due to the large difference in fastness of different vegetable dyes, the color change is more obvious

3. The chromatogram of the dye after extraction is unstable, and the light fastness and washing fastness are poor

Most of the dyeing of vegetable dyes requires the use of mordants to improve the fastness and color fixation rate. Many mordants are harmful and will cause serious pollution.