The Excessive Formaldehyde Content Of Textiles Is Seen Frequently In The Media.

As we all know, formaldehyde, which is very harmful to human health, has always been a key item in the process of national standardization and testing service.

Formaldehyde content exceeding the standard has repeatedly appeared in the media.

Recently, the sampling report of the relevant departments showed that a total of 9 batches of products of a well-known brand had different levels of formaldehyde content exceeding the standard, and the worst was over 30%.

This exposure not only led to the public's curiosity about formaldehyde content detection business, but also triggered a heated discussion among experts.

The inspection service experts of relevant departments said that the testing service for formaldehyde content of textiles is a serious and professional examination content, and the state departments and testing institutions should give high attention.

It is reported that formaldehyde in textiles comes from fixative agents such as fixing agents, pigment printing adhesives, etc., to improve its comfort and color fastness.

But if too much is added, the textile will release free formaldehyde when people are wearing or using it, penetrate into the body through skin contact, change the protein structure, cause eye pain, asthma, blood diseases and other diseases.

In order to prevent the formaldehyde in textiles from damaging the human body, the relevant departments of the state have formulated stringent inspection standards.

For example, GB18401-2010 "national textile product basic safety technical specification" will be divided into 3 grades according to product uses. The formaldehyde content of infant textiles should be less than 20mg/kg, and the formaldehyde content of textiles directly exposed to the skin should not exceed 75mg/kg, rather than direct contact products should be less than 300mg/kg.

At the same time, the state departments require enterprises to strictly control the quality in production, and the testing institutions should provide services strictly according to the testing standards.

In 2015, Ying Ge, a domestic third party testing agency engaged in textile inspection service, introduced that in response to the call of the state and the conscientious and responsible attitude towards consumers and production enterprises, in recent years, Ying Ge has been testing formaldehyde content in thousands of production enterprises in strict accordance with the standards.

Among them, nearly 23% samples detected excessive content, mainly for easy care.

Children's clothing, jeans and jeans.

However, after accepting the production improvement suggestions, we can effectively control the content of free formaldehyde in clothing, and it also ensures that every sample through testing business has super high quality.

However, because of the basic theory of conventional operation technology and chemical analysis, the testing institutions need to train professional and technical personnel and R & D related testing technologies to enhance their ability to detect their own formaldehyde content.

Among them, restricted by formaldehyde instability, its related detection standards and detection techniques are various.

At present, the domestic testing institutions generally use acetylacetone colorimetric method, according to GB/T2912.1-1998 "determination of formaldehyde in textiles: Part I: dissociative hydrolysis of formaldehyde (water extraction method)" and "GB/T2912.2-1998 determination of formaldehyde in textiles second parts: release formaldehyde (steam absorption method)" and other testing methods, using different types of spectrophotometer to meet the needs of different types of textiles formaldehyde content detection business.

In addition, experts said that not only should the testing organization pay attention to the particularity of the sample while implementing the test, the production enterprise should also be aware of the particularity of the sample.

In the process of production, we should also pay attention to the generation of free formaldehyde, control the dosage of related additives, and ensure the quality of products.

Although the content of textile formaldehyde content testing is much and widely classified, the technical content required in the implementation is high, but this should not be an excuse for manufacturers to indulge in products containing ultra high formaldehyde.

At the same time, relevant departments and testing institutions should also work together to guide the healthy growth of textile formaldehyde content detection service market.