First, natural fiber

(a) Plant fiber

Cotton, ramie, and flax are natural fibers derived from seeds, leaves, and bast of natural plants. They can be naturally degraded in the environment after consumption, have good affinity with the human body, and will not cause harm to people and the environment.

However, cotton fibers need to use chemical fertilizers, insecticides, herbicides, defoliants, fungicides, etc. during planting and growth. They will remain on the fibers and pollute the environment. In addition, cotton fiber will absorb some harmful heavy metal elements from the atmosphere and the atmosphere during the growth process. Although most of the pesticides absorbed by cotton fibers are removed during the processing of cotton textiles, it is still possible that pesticides will remain in the final products. The toxicity of these pesticides to the human body is not uniform and depends on how much residue is left. Some are easily absorbed by the body through the skin, causing harm to the human body.

Most of the hemp plants have natural antibacterial and antibacterial functions, and they do not need to be applied with pesticides and chemical fertilizers at the time of planting. They do not require high soil quality and can be planted in hills and mountains. The product is comfortable, breathable, bacteriostasis, and has certain health care functions. It is a kind of green fiber and green sustainable raw material.

(b) Animal fibers

Natural animal fibers such as wool and silk have always been important raw materials for high-grade textile fabrics. They are comfortable and harmless to the human body. They can be naturally degraded in the environment after being discarded, and are highly favored by consumers. However, these fibers may be contaminated due to the feeds fed. Harmful heavy metals, pesticides and fertilizers in the atmosphere and in the soil can also be fed into the food chain through the feed. For wool fibers, especially cashmere, there are also pasture degradation and desertification caused by excessive shepherding, which has a serious impact on the environment.

In recent years, due to the increasing attention paid to ecological issues, people are working hard to improve the growth and survival environment of natural fibers, minimize the chance of contamination, or use new techniques and methods to remove harmful substances that remain in the fiber to keep The unique properties of natural fiber green eco-environment.

Second, renewable fiber

Regenerated fiber is a fiber made from natural fiber materials and other materials as raw materials, and it is recycled and processed. Its ecological properties are better than that of spun fiber. However, the viscose fiber and bamboo pulp fiber in the recycled fiber, although using non-oil resources of cotton fiber and bamboo: raw materials, can be biodegradable, but due to the production process requires a large amount of chemical raw materials, such as caustic soda, carbon disulfide, sulfuric acid With zinc sulphate, etc., most of these chemical raw materials are converted into waste after being produced and discharged into the atmosphere and water bodies, causing extreme pollution to the environment, and the resulting fibers often contain a small amount of impurities such as polysulfide compounds. In order to maintain the ecological environment, developed countries have reduced their production or non-production year by year, or developed entirely new regenerated fiber spinning systems, such as the development of harmless or recyclable solvent spinning processes.

Third, synthetic fiber

Synthetic fibers such as polyester, nylon, and acrylic are based on petroleum, natural gas, and coal. These are non-renewable energy sources. The impact on the ecological environment cannot be ignored, and such fibers are difficult to biodegrade after consumption and disposal. The impact has continued for hundreds of years.

During the synthesis of the polymer, contamination mainly comes from monomers, catalysts, and additives, as well as volatile organics. In particular, additives of the phthalate series have been given clear limit values ​​in the Oeko-Tex Standard 100. ;

Dry spinning and wet spinning solvents in spinning processing are also major sources of pollution, as well as heat, noise, and exhaust gas pollution during production.