Plant dyes are ruthless but have true meaning

Human nature is contradictory. It has to conquer and change nature, and spare no effort to recreate the material world. On the other hand, it also loves and loves, and never forgets to purify the mind, without losing the pursuit of natural beauty. In recent years, the return to the original in color is such a journey.

Not long ago, at the annual meeting of the International Green Economy Association in Beijing, experts introduced the green plant dye dyeing technology, saying that the new environmentally friendly textiles now have six dimensions: environmentally friendly fibers, vegetable dyes, natural additives, green printing and dyeing, Easy to care, easy to degrade or regenerate. Among them, the plant dye can be extracted from the Chinese medicinal material safflower, dyed and dyed women's underwear, and the color extracted from the radix is ​​used to print the men's underwear, antibacterial health care. The listener feels refreshed and fascinated.

Rongtong ancient method, revitalizing grass, natural essence

In all seasons, the color is more than summer, and it is the colorful grass in the world. Haven't seen the human ancestors of industrial civilization, how do they use color to decorate their clothes?

From a large number of ancient documents recorded and excavated unearthed tomb items can be seen, more than two thousand years ago, in the Spring and Autumn Period and the Warring States Period, whether it was Wang Gonggui or civilians, wearing natural fiber, natural dye products, no pesticides, fertilizers, Degumming, boiling bleaching aids or wool stripping tablets without chemical synthesis. The ancient method dyeing uses the most vegetable dyes, and a large number of them are dyed with herbs, Chinese medicines and tea leaves.

With the rise of the second industrial revolution in the UK, the production of large machines basically replaced the handicraft industry, and chemical synthetic dyes were invented and brought great influence to the world textile industry. China is a big textile country. In the past 30 years, it has also caused serious environmental pollution while promoting economic development. Synthetic chemical dyes and auxiliaries used in textile dyeing processing contain various harmful substances to varying degrees, endangering people's health. In particular, the large amount of sewage generated during the chemical dye synthesis process is difficult and costly, which puts great pressure on the ecological environment.

Therefore, the future development direction of the textile industry is to be effective and natural, and to meet the fast-paced needs of society. Gao Guangdong, general manager of Hangzhou Cairun Technology Co., Ltd., said in an interview with the Science and Technology Daily that modern plant dyeing technology has made a major breakthrough, and can make thousands of colors for industrial mass production, greatly reducing the production cost of plant dyes. Natural plant dyeing is the use of natural pigments extracted from flowers, fruits, skins, stems and seeds of natural plants to dye textiles. Common varieties are: walnut skin, hazelnut, hematoxylin, marigold, mulberry, turmeric , valerian, bluegrass, safflower, five scorpions, etc., variety.

He said that from the perspective of Chinese medicine, Chinese herbal medicine has a health and health effect on the human body. It is a green and environmentally friendly product. The sewage produced by natural plant dyes is simple to treat, compatible with the environment, non-toxic, harmless and non-polluting. Better biodegradability. Cairun Technology used Chinese herbal medicines as plant dyes in the garment industry, invested in the construction of Chinese herbal planting bases, pigment extraction bases and advanced multi-frequency ultrasonic equipment and process technology, and adopted natural plant dyes and natural additives for ecological purposes. The processed dyed fiber products factory forms a natural Chinese herbal plant dyeing industry chain.

Give a gentle and refreshing encounter with the skin

Many people choose clothes, only stay in the beauty, such as color, style, etc., ignoring the direct impact of clothing hygiene function on health.

In recent years, there have been surveys showing that the current qualified rate of women's underwear quality samples on the market is 70%. The unqualified products are mainly concentrated on the color fastness to perspiration. The so-called color fastness to perspiration is when the human body sweats, the dye in the fabric is detached by the action of sweat and transferred to the skin, which may be sensitized and carcinogenic to the human body.

Gao Guangdong told the Science and Technology Daily reporter: "The underwear fabric close to the skin will stain a lot of human body secretions such as sweat and sebum during the wearing process. Under certain temperature and humidity conditions, it will breed various microorganisms such as pathogenic bacteria. Hotbeds can also produce odors. Moreover, if the fabric is improperly made in the printing and dyeing process, it is easy to cause cancer. So in summer, people use a traditional towel to wipe the sweat and put it in the bathroom to smell sour."

In response to these circumstances, Cairun Technology promotes the application of eco-friendly, environmentally-friendly chlorine-free bleaching processed flax, hemp and jute in the textile and non-woven applications. Because of the natural antibacterial function of linen and Chinese herbal medicines, it is not necessary to add chemistry. Antibacterial agents form textiles with high safety, high added value and eco-friendly functional fibers and yarns. With the towel, socks and the like made thereof, the inhibition rate can reach about 99%. Moreover, the color fastness is in line with the mandatory standard of the National Textile Products Basic Safety Technical Specification GB18401-2010.

Deng Peihua, chairman of Suzhou Tianjin Mayun New Material Technology Co., Ltd., told the reporter: "In order to solve the problem of underwear, technicians have developed a 'decompression pants', which is a purely functional ecological pants, using antibacterial Linen replaces the traditional poorly breathable material into underwear. Then the Chinese herbal medicine is made into vegetable dyes for use on fabrics, pigmented dyed women's underwear is extracted from safflower, and men's underwear is printed with the color extracted from Banlangen to achieve the color fastness of chemical dyes. ."

Compared with traditional underwear, the experiment shows that the underwear has breathability, quick-drying and antibacterial properties. It can change the men's traditional shorts because of the increased temperature and humidity of the ankle, which affects the health and comfort. Female genital itching and gynecological disease infection probability.

In practice, technicians dye natural vegetable dyes with protein fibers and cellulose fibers such as wool, silk, cotton and hemp, and find that the color is natural and the color is soft. After processing, it can be widely used in knitted underwear, baby products and home furnishing. It is clean, comfortable, safe and healthy.