The Natural Ecological Dyeing Method Is In Line With The Concept Of Environmental Protection

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China is rich in natural dye plant resources. The use of natural plant dyes is thousands of years earlier than abroad. After the introduction of synthetic dyes into China in the early 20th century, natural plant dyeing was gradually replaced.

Zengye Textile Science and technology studio has been developing pure vegetable printing and dyeing technology. It does not use industrial methods to add various chemicals to make plant dyes, which naturally becomes unnatural. In the subsequent dyeing process, a large number of auxiliaries such as dyeing aids and fixation are added, which is of no help to environmental protection and health.

Zengye Textile Science and technology studio combines physical and chemical weaving, biological pretreatment, direct extraction of natural plant dyes, without adding chemical industry, and directly dye on the cloth surface. In order to ensure the fastness, the natural plant resources selected should be specially selected and combined with special processes to ensure simple and effective.

We choose dyeing plants from the perspective of three primary colors "red, yellow and blue"

　 Plant dyed "red"

1. The red part of Rubia cordifolia is the root, the main pigment component is "alizarin", the extracted red is dark earth red, the professional term is Turkish red.

2. The difference between safflower and Rubia cordifolia is that safflower can be directly dyed and the process is simple. The color of safflower is not only one kind of red, but also a very rich color system. In addition to dyeing silk and paper, safflower is often used to make cosmetics such as rouge and lip makeup. It is also a raw material for pressing oil, edible and medicinal purposes.

3. Compared with other red plant dyes, sappan has better coloring effect, lower price and no need to extract red pigment in advance. Therefore, dyeing technology is easy to learn and is the first color to be considered in the development and research of plant dyes.

　 Yellow plants

1. The part of Curcuma used for dyeing is dry rhizome, which contains curcumin. It can be directly dyed into yellow fabric, and can also be used to dye yellow with different lightness by adding mordant. At the same time, it has special functions such as antibacterial and anticancer.

2. Rutin is used in the dyeing of Flos Sophorae. It can be dyed directly or can react with various mordants to produce different colors. For example, when alum is used as mordant, oil green can be obtained.

3. Gardenia jasminoides Ellis contains some ketones, such as crocetin, crocetin, etc. Like turmeric and Sophora japonica, Gardenia jasminoides can be dyed either directly or by some mordants. It has the advantages of low cost, strong coloring power and bright color. It is the most widely used yellow pigment before Qin and Han Dynasties.

Blue plants

1. "Blue" not only represents "blue", but also refers to a variety of plants that make indigo dye, also known as bluegrass in ancient times. In addition, indigo and Isatis indigotica can be subdivided into indigo blue and Isatis indigotica.

In terms of dyeing methods, before Qin and Han Dynasties, the main dyeing method was soaking and kneading the fresh leaves of Polygonum. The principle was that the indigo glycosides contained in the leaves produced free indole, which would condense into insoluble Indigo in the presence of oxygen, so as to achieve the purpose of fabric dyeing.

2. Like other blue dyeing plants, the leaves of indigo can be used to extract indigo dye, but it can also be used as medicine.

3. The leaves of indigo have high yield, thick color and good quality. With the development of society, the technology of blue dyeing is also improving. From the Western Han Dynasty to the Qing Dynasty, the chromatograms related to blue changed from two kinds of cyan tones to nine kinds of blue and blue tones.

Although the natural plant dyeing method is in line with the ecological and environmental protection concept advocated at present, it still needs to overcome many difficulties in its real and effective utilization, such as coloring rate, fixation ability, safety and so on. In order to achieve real green and natural, not to destroy the original plant ingredients, but also to meet the requirements of today's standards, simple mass production, the applicability of consumers, the impact of use on the environment and so on, Zengye textile technology studio has been developing pure vegetable printing and dyeing technology, and a series of matching processes, in order to achieve perfect technology and guidance.

Therefore, in the preparation of dyeing solution, pure extraction does not add any chemical industry, cloth is pretreated by environmental protection biotechnology, dyeing process does not need other chemical additives, simple post-treatment washing water.

There are a lot of plants that can be used for dyeing. We should constantly develop more applicable, effective, safe and green color systems to enrich the demand of the textile industry and provide more natural, green and environmental color choices for the fashion industry.