Analyze The Safety And Health Performance Test Items Of Infant Clothing

　　 Fibrous plant It is absorbed and accumulated from air, water and soil in the growth process, and absorbed and remained in some textile dyeing and finishing processes, as well as some clothing accessories such as zippers, buttons and so on, which also contain releasable heavy metals. Due to close contact, extractable heavy metals in fabrics and clothing are easily absorbed by human body, especially infants and children. When heavy metals enter the human body, they will cause irreversible damage to skeleton, liver, kidney, heart and brain to a certain extent and pose a great threat to human health. Therefore, the standard clearly limits the extraction amount of heavy metals such as mercury, cadmium, lead, arsenic and copper to ensure the safety of the objects used.

——Formaldehyde content

Formaldehyde, also known as formalin, is used in medicine to preserve human or organ specimens in the form of liquid, and in industry as a cleaner, raw material for plastic production, preservative, etc. Formaldehyde is mainly found in dyeing auxiliaries and resin finishing agents in the textile and clothing industry. It is mainly used for dyeing and fixing of fibers and fabric products, as well as improving wrinkle and shrink proof effects. Auxiliary agents containing formaldehyde are also used for iron free finishing of some clothing products. Medical experts believe that formalin is a chronic toxic drug. The textile and clothing containing formalin will gradually release free formaldehyde during wearing, which will cause inflammation of the respiratory tract and skin through contact with the human respiratory tract and skin, and will also cause irritation to the eyes. Long term exposure to low-dose formalin may cause chronic respiratory diseases, female menstrual disorders, pregnancy syndrome, and physical deterioration of newborns chromosome Abnormal, even nasopharyngeal carcinoma. High concentration of formalin is toxic to nervous system, immune system, liver, etc. The harm of formalin entering the human body is also manifested in its ability to coagulate proteins, which can cause cancer. Therefore, the regulations and standards of some countries strictly limit the formaldehyde content of textiles and clothing. According to the characteristics of infants, the Infant Garment Standard stipulates that the formaldehyde content of the product must be less than or equal to 20mg/kg.

——PH value

PH value is an indicator that the strength of acidity and alkalinity of a substance is measured by chemical analysis and expressed by numerical value. The value starts from 0 to 14, and takes 7 as the center value, which is neutral. The more 7, the closer to 14, the stronger the alkalinity, and the less 7, the closer to 0, the stronger the acidity. The range from 4 to 7 is called weak acidity, and the range from 7 to 9 is called weak alkalinity. Generally speaking, human body skin The surface is mostly slightly acidic, which can inhibit the invasion of bacteria and resist allergy. Because some acid or alkaline chemicals are often used in the process of weaving, printing, dyeing and finishing of textile and clothing raw materials, the residues after clothing may change the slightly acidic state of human skin surface and affect human health. Therefore, some countries have added pH testing items in the quality testing of textiles and clothing, mainly to identify their adaptability to human skin and whether they can play a role in bacteria resistance, cleaning and allergy suppression. Generally, when the pH value of textiles and clothing is between weak acidity and weak alkalinity, good effects such as protecting human body from bacteria can be achieved. According to the characteristics of infants, the standard of Infant Clothing stipulates that the pH value of the product must be between 4.0 and 7.5.

——(azo) dyes capable of decomposing aromatic amines

This type of dye has been proved by experiments to be harmful and will release carcinogens in the process of use. Textiles and clothing printed and dyed with this dye will retain and release a certain amount of toxic substances. Through long-term direct contact with the human body, the toxic substances will be absorbed by the skin, penetrate into the body to affect tissues and organs, change the original DNA structure, and eventually induce pathological changes and lead to cancer, endangering human health. In July 1994, Germany banned the production, use and sale of textiles and clothing containing such carcinogenic aromatic amine azo dyes in the form of government legislation for the first time. Subsequently, the Netherlands and Austria and other countries actively followed suit. At present, the prohibition of azo dyes has become one of the important safety, health and quality control items in the international textile and clothing trade. According to the European ecological textile standards, there are currently 23 azo dyes containing carcinogenic aromatic amine substances that will be released in the process of use. In the course of trade, if the fabric or clothing is found to contain one of them, the batch of products will be judged as unqualified products and rejected. The standard of Infant and Young Children's Clothing also lists them as prohibited. For the names of these (azo) dyes that can decompose aromatic amine, please refer to the appendix of the mandatory standard of GB18401-2003 National Basic Safety Technical Code for Textiles.

——Odor

The materials of textiles and clothing are not clean, contain toxic substances or are polluted by some toxic substances due to improper methods during production, transportation and storage, which will give off some abnormal smells, such as musty smell, high boiling gasoline smell, kerosene smell, fishy smell, pungent aromatic hydrocarbons, perfume smell, etc. These abnormal smells have different degrees of damage to human health. In addition, if the down products made of poultry feathers and fluff as liners are not properly cleaned during production and processing, they may produce putrid odor or odor after long time washing with water, which will affect the wearing and use hygiene. These situations must be avoided. Therefore, the "Infant Garment Standard" stipulates that the product must not have odor.

Through further understanding and learning of the standards of Infant and Young Children's Clothing, people will be able to understand the importance of strengthening the inspection and control of safety and health performance items of clothing products. Especially for infant clothing products, the inspection and determination of these items should not be sloppy. The promotion and application of the standard of Infant Clothing in the textile and clothing industry will certainly help to strengthen source control. Urge the producers to further implement measures, continuously improve the safety and health performance of products, and improve the internal quality and credibility of products; And consumers will further improve their ability to identify the quality of products and better protect themselves. At the same time, by strengthening the supervision of the market, the opportunities for those substandard fake and inferior products will be less and less.