Wall covering, also known as wall covering, is a kind of fabric used to decorate the wall surface. It is often clothed with cotton as the base, and decorated with printing or rolling reliefs. It is beautiful and practical. Wall cloth also has the advantages of waterproof sound insulation, thermal insulation, environmental protection and other advantages. These advantages make wall coverings popular, especially the seamless wall covering that has been popular in the market in recent years. Then do you know that seamless wall coverings have formaldehyde ? How is the formaldehyde on the wallcloth produced? Xiao Bian now take everyone to see if there is formaldehyde in the seamless wall cloth !
Whether the wall covering is environmentally friendly or not depends on the choice of raw materials and the dyeing process and the treatment at the bottom.
1, see raw materials
Whether green wall covering is environmentally friendly or not, first of all raw materials are considered. Generally, large-scale manufacturers are more concerned with the selection of raw materials. The materials are mostly polyester, hemp, cotton, and silk, which are dominated by polyester, but there are fears that there are speculative industries. In order to save costs, small manufacturers mainly use poor-quality polyester. In this regard, it is recommended that home improvement or large-scale wall covering. Big manufacturers do word of mouth, small manufacturers do price.
2, see the dyeing process
The dyeing process is also an important factor that affects the environmental performance of wall coverings. Here, we must first know that as long as there is a color wall cloth, there must be formaldehyde, formaldehyde content is only a matter of how much, so the choice of colorant is also very important. Oily color paste is an industrial colorant. The content of formaldehyde is excessive. If it is used as a wall cloth dyeing, then the amount of formaldehyde is not so low. Secondly, large brands of wall cloth pastes generally use water-based colorants as the main dyeing agent, with relatively low levels of formaldehyde and even no detection.
3, see the bottom of processing
From the bottom of the perspective of the classification of wall cloth, there are basically two kinds of PVC and non-woven on the market, in terms of environmental protection, the non-woven material wall cloth is more environmentally friendly. PVC is chemically compounded with polyvinyl chloride, or plastic for short. This kind of bottom treatment is relatively less environmentally friendly.
With regard to the knowledge about formaldehyde in seamless wall coverings , Xiao Bian has introduced it here for everyone and hopes to help everyone. With the gradual improvement of people's living standards, people's demands for quality of life are also increasing. Wall coverings are used as interior decoration materials. Environmental health issues are also the focus of people's attention. When people are buying, they can pay more attention! For more information, please follow this site!
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Electric valve is a device that drives the valve to open and close by electric motor. It is widely used in various industrial and civil fields, such as metallurgy, chemical industry, petroleum, natural gas, heating, ventilation and air conditioning, automatic control, etc. The following are some application scenarios of electric valves:
1. Fluid control in industrial production: electric valve can be used to control the flow, pressure and temperature of liquid, gas and steam to meet the needs of industrial production.
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4. Heating, ventilation and air conditioning system: the electric valve can be used to control the water flow, air flow and temperature in the heating, ventilation and air conditioning system to meet the requirements of the indoor environment.
5. Automatic control system: electric valve can be used with automatic control system to realize automatic control and adjustment of fluid flow, pressure, temperature and other parameters.
In short, electric valves are widely used in industrial and civil fields, which can improve production efficiency, ensure product quality and improve production safety.
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