In recent years, consumers have become increasingly concerned about the intrinsic quality of textile and apparel products that are in direct contact with the skin, and whether or not the PH value index is within the specified range has also attracted great attention. There are many reasons for the excessive PH value, but after the fabric is dyed and processed, the fabric is not fully washed and dried. At the same time, it has not taken certain neutralization measures, which is the main reason for the PH value being unqualified. In addition, poor quality fabrics can also cause excessive pH. Expert reminds The majority of consumers must first read the information in the product tag when buying textile products, and try not to purchase low-quality products. According to the division of "National Basic Safety Technical Specifications for Textile Products", textile products can be divided into three security levels A, B, and C. Infants and young children (within 36 months or less) should comply with the technical requirements of Class A products and have direct contact with them. Skin products should meet the technical requirements of Class B products. Products that are not in direct contact with the skin should meet the technical requirements of Class C products. For textile products labeled “C-class†or “qualified productsâ€, it is best to purchase them carefully. Second, after buying back new products, especially textiles such as children's products, baby products, and underwear that are in direct contact with the human body, do not wear them directly. Rinse with clean water and then wear it again, which can effectively reduce the harmful substances in textile products, so that the PH value does not deviate from the standard range.
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PH value of textile refers to the residual acid and alkali content in the fabric, and it is one of the limited quantities of harmful substances that affect human health and health. The national standard GB18401-2010 "National Basic Safety Technical Specification for Textile Products" stipulates that the PH value of infants and textile products that directly contact the skin should be controlled at 4.0 to 8.5, and the PH value of textile products that do not directly contact the skin should be controlled at 4.0 to 9.0. If the product requires non-final products that must be wet processed in subsequent processing, the pH can be relaxed to between 4.0 and 10.5.
The skin of the human body generally has a pH of between 5.5 and 7.0 and is weakly acidic. Excessive PH value of textiles will destroy the weak acidic environment on the human skin, cause itching, make the skin vulnerable to other pathogens, and even cause dermatitis and other symptoms.
In addition, the high or low PH value of the textile will make the fabric easily damaged during storage. It can be seen that the PH value of textile products is not only closely related to the health of consumers, but also inseparable with the quality of textile products.