Two Indexes Must Be Paid Attention To When Choosing Clothes: Formaldehyde Content And Ph Value.

According to a press survey, 5 of the consumers are not aware of the impact of these indicators on human health. Clothes & Accessories Such problems should not affect human health, but will continue to buy. " What is the hidden danger to human health?

Pi Xiaolin, deputy director of the consumer guidance department of the China Consumer Association, said that due to the different quality control of "fast fashion" brand and frequent quality problems, in order to help consumers understand the true quality of such clothing products, in 2013, the China Consumers Association purchased 70 "fast fashion" adult clothes in Beijing and Shanghai market for comparative tests. The test results showed that there were 45 garments that could meet all the standards, accounting for 64% of the total test samples.

PH exceeds standard:

Destruction of acid-base balance causes skin allergy

PI Xiaolin pointed out that "clothing in the printing and dyeing and processing process, inevitably will be exposed to a lot of chemicals, so a certain range of pH value is a favorable barrier to ensure skin health."

He warned that the pH value of human skin is slightly acidic, which can protect the body from infection by bacteria. If the pH value of clothing is too high, the alkalinity is too large and the irritation is enhanced, it will easily cause the natural barrier of the skin surface to be damaged. The skin of the human body itself is irritated by the neutral acidic skin, causing burning sensation, causing bacteria and causing diseases.

Therefore, the state has drawn up the 18401 level standard. The pH value of textiles directly exposed to B should be between 4 and 7.5. The C value of textiles that are not directly exposed to skin should be in the range of 4 to 9, when people wear the most comfortable.

"If pH is too high, it will irritation to the human skin. There will be erythema, air masses and pruritus with varying degrees. Excessive scratching can cause skin damage and secondary bacterial infection. Huang Qing, deputy chief physician of Department of Dermatology, Dongzhimen hospital, Beijing University of Chinese Medicine, reminded that clothes should not be directly worn by newly bought clothes. Usually, after washing several times, the pH value will decrease significantly. In particular, children's clothing can be washed, first washed, washed, soaked and gently rubbed in a short time to observe whether there are abnormal conditions such as fading, shrinkage, but also can reduce the harmful substances in clothing.

High formaldehyde content:

Irritation of skin and mucous membrane to respiratory diseases

It is worth mentioning that excessive formaldehyde in clothing is also a big problem. The main function of formaldehyde is clothing Anti wrinkle and shrink proof water, improve clothing color and brightness. "If manufacturers use cheap additives containing formaldehyde, they will gradually release the formaldehyde from their clothing and use them, which can lead to diseases through contact with human respiratory tract, eyes and skin," Pi Xiaolin said.

"If Clothes & Accessories Formaldehyde content exceeds the standard, which is the biggest irritation to the human body's largest organ skin. Huang Qing points out that the skin is mainly irritant to the skin and mucous membrane, such as redness and itching of the skin at the place where clothes are touched. The wind can cause blister, bullae and even secondary infection.

Zhang Hong, deputy director of the Department of respiratory and critical care medicine, Beijing Chaoyang Hospital, also pointed out that formaldehyde is harmful to the respiratory system of the human body. "If people wear formaldehyde over standard clothing for a long time, they can cause chronic respiratory diseases, conjunctivitis, laryngitis, asthma and bronchitis. People who are allergic to formaldehyde may develop symptoms such as cough and wheezing.

It is understood that the national standard GB 18401-2010 "national textile products basic safety technical specification" has a clear regulation on the formaldehyde content of textile and clothing, a class no more than 30mg/kg, B class not more than 75mg/kg, C class not more than 300mg/kg.

Pi Xiaolin suggested that when consumers choose clothes, they should first smell the smell. If the clothes have pungent odor, most of the clothes are over formaldehyde. However, sometimes the formaldehyde exceeds the standard, and the clothes may not smell the same. "To judge whether methanol is over standard, it can only be detected by professional instruments."

Therefore, leather Xiaolin reminded that from a safety point of view, consumers should choose regular manufacturers' products, pay attention to the signs, and focus on the classification of clothing safety technology requirements (ABC three categories), according to different types of clothing, see whether they meet the corresponding classification standards, try to choose products of category A and B. If clothes are suitable for washing, it is best to wash them before wearing them.