Advantages of cotton towels
1. Strong hygroscopicity and large shrinkage rate, about 4~10%
2, alkali resistance is not acid resistant. Cotton cloth is extremely unstable to inorganic acids, even if it is very dilute sulfuric acid, it will be damaged, but the effect of organic acid is weak, and it has almost no damage effect. Cotton cloth is more resistant to alkali. Generally, dilute alkali does not affect cotton at normal temperature, but the strength of cotton will decrease under the effect of strong alkali. The "silked" cotton cloth is often obtained by treating the cotton cloth with 20% caustic soda.
3, light resistance, heat resistance is usually. In the sun and the atmosphere, the cotton will be slowly oxidized, reducing the strength. Long-term high temperature effect will damage the cotton cloth, but it is resistant to short-term high temperature treatment of 125~150 °C.
4. Microorganisms have a detrimental effect on cotton fabrics, making them resistant to mold.
5, cleanliness: cotton fiber is a natural fiber, its main component is cellulose, there are a small amount of waxy substances and nitrogen and pectin. The cotton fabric has been inspected and practiced in many aspects, and the fabric and the skin are touched without any stimulation. The long-wearing is beneficial to the human body and has excellent sanitary performance.
There are four ways to choose pure cotton towels.
The more commonly used items, the more important it is to pay attention to its safety, such as towels, it is best to buy pure cotton texture, because the cotton texture of the towel is more absorbent, easy to clean, feel good.
Here are four ways to identify the quality of a cotton towel:
A look: look at the color of the towel against the light, the shiny is usually not a cotton towel.
Two touches: The cotton towel feels very soft to the touch, and the hard one must not be pure cotton.
Three combs: use a hand to comb the towel to see if it is hair loss. If you have a little hair loss, don't be disappointed. The cotton towel has some hair loss. The towel that is not lint is mostly chemical fiber towel.
Four picks: The quality of the pure cotton towel coil is tight and regular, no curling.
Air Filter Material
What is the best material to filter air?
The range of filter material is relatively wide, and the commonly referred to filter cotton (filter) generally refers to air filtration. According to different materials, filter media is divided into four types: synthetic fiber filter cotton, non-woven filter material, glass fiber filter material, activated carbon filter cotton. Filter material can also be divided into: primary filter media, medium filter media and high-efficiency filter media according to the different filtration efficiency.
Filter Cloth Material,Electrostatic Filter Cloth,Electrostatic Filter Fabric,Filter Fabric By The Yard,Air Filter Media,Activated Carbon Air Filter Media
Huamaotek Nonwoven Co., Ltd , https://www.hmnonwoven.com
