Cotton clothes are absolutely natural? Will chemical fiber clothes cause discomfort to the body?

Textile products for infants and young children should meet the requirements of Class A in the above standard, and products in direct contact with the skin should meet at least the requirements of Class B in the standard (if consumers are interested here, they can refer to the specific content of the standard, which is publicly available).

Looking at it this way, you must have found that even "pure cotton" is exposed to a lot of chemical substances... But we have passed through so many pure cotton clothing are also very safe, this is because the qualified textile implementation of the national standard, so we really do not tangle with the production process and "chemical" two words, directly see whether the finished product is in line with the national standard, and this also applies to chemical fiber products.

Chemical fiber, more efficient

Different from natural fiber, chemical fiber is a kind of fiber made by chemical methods, chemical fiber has only a short history of more than 100 years, but the output is large and the variety is rich.

Compared with cotton fiber, which needs to be harvested through agricultural planting and seeds after a certain growth cycle, in order to enter the industrial processing link behind, the production of chemical fiber is more "direct", and directly enters the high-efficiency industrial processing link from the source.

The largest yield of synthetic fiber in the chemical fiber family, for example, the source of synthetic fiber is petroleum, petroleum through the chemical system layer extraction, separation, the production of such fibers required small molecular organic compounds, and then small molecular organic compounds through addition polymerization or condensation reaction to synthesize organic polymer compounds, and then through various processes to become fibers.

The man-made fiber, which is also a chemical fiber, must first dissolve and purify the natural polymer compounds or derivatives in order to carry out subsequent production and processing, which will not be described here.

The emergence of chemical fibers has greatly enriched the variety and performance of textiles and clothing, giving products some functions and characteristics different from natural fiber materials. For example, the significant feature of polyester is poor hydrophilicity, which makes polyester fabric has the characteristics of easy to dry, and many high-quality quick-drying sports clothing materials are made of ultra-fine polyester.

After the microfiber is woven into the fabric, the capillary siphon effect is formed between the fibers, which will accelerate the sweat evaporation on the surface of the fiber, and keep the surface of the human body in motion dry and comfortable. The researchers developed cotton-like polyester, which has the advantages of cotton fiber, and its hydrophilicity has been significantly improved. Cashmere polyester is a kind of polyester with wool fiber characteristics, which is developed by learning from the experience of cotton polyester. Its surface and cross section are honeycomb microporous structure, fineness is close to cashmere, and it has a soft and delicate feel like cashmere and good moisture absorption.

After the characteristics of natural fibers and chemical fibers are fully understood, people often combine the advantages of natural fibers and chemical fibers through blending or interweaving processes in product development, so as to achieve the effect of 1+1 > 2.

The most common example is the polyester/cotton blend fabric, which is usually made of 65% polyester and 35% cotton fiber. The strength, wear resistance and shape retention of polyester-cotton blended fabric are better than those of pure cotton fabric, and at the same time, it has certain moisture absorption and soft feel. For example, the traditional jeans are made of cotton roving, although the moisture absorption is good, but the lack of elasticity, the close-fitting effect is not good, then people have developed a variety of suitable jeans fabrics, such as a high-stretch denim is the use of cotton yarn and spandex yarn interwoven products, interwoven into the high-elastic spandex yarn (usually in 3%-5%), you can obtain elastic denim fabric, Personal comfort, in order to ensure the special style of denim clothing on the basis of added comfort.

Natural fibers and chemical fibers have their own advantages, they together for us to weave a rich variety of clothing and textiles, textile products in line with national standards are safe and reliable, consumers can buy according to actual use needs.