Natural bamboo mat is better!
1, the yellow seat pretends to be a bamboo green seat.
The phenomenon that dyed bamboo yellow mats pass for bamboo green mats still exists. At the same time, formaldehyde and toxic heavy metals hidden in fake and shoddy bamboo mats are like untimely bombs under the body, which makes people fidget.
The obvious difference between many bamboo mats on the market lies in their colors, such as green, yellow and brown. Why is there a big color difference between summer sleeping mats? The wholesale market has painted, carbonized and primary colors.
And painting? Yes, the secret lies in some bamboo mats that look green. Most shopkeepers claim that they sell bamboo mats, which are cool and breathable to sleep on, but some "three noes" bamboo mats are scratched with their nails, revealing a yellow background.
Bamboo summer sleeping mats are generally made of bamboo heads and two green strips. Touqing is the first branch of bamboo, which is the coolest and most flexible. Qing Er is the second branch of bamboo, which is usually called bamboo yellow. It is of poor quality, fragile and easily broken. Therefore, the price of bamboo green mats is often much more expensive than that of bamboo yellow mats. According to the introduction of the quality inspection station, the best bamboo mat is the bamboo green mat. Driven by interests, many enterprises will dye bamboo yellow mats with industrial dyes. The seemingly green bamboo mat on the market is actually made of some chemical raw materials (such as industrial copper sulfate or industrial copper chloride) that are harmful to human health. Long-term contact with the skin is likely to cause skin diseases or heavy metal residues.
Inferior bamboo mats hide formaldehyde.
If there is some pungent smell in the bamboo mat, it may contain harmful substances such as formaldehyde.
The bamboo mat is transported to the cloth pressing factory for cloth pressing after the previous procedures such as bamboo crushing, bamboo bleaching, drying and weaving. In order to improve its flatness, a layer of gauze or grass is usually pasted under the mat, which requires the use of adhesives (such as urea-formaldehyde resin glue). The excessive formaldehyde in bamboo mats is often caused by the use of adhesives with high formaldehyde content and unqualified requirements.
A bamboo mat with excellent quality has strict requirements on materials and technology. If the growth period of the selected bamboo should be 3~5 years, the bamboo mat is woven with "green" bamboo filaments in the middle of the bamboo; Technically, high temperature and high pressure carbonization is popular at present, and it is very important to control carbonization time and temperature index.