Characteristics of cotton fabric
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Cotton fabric refers to fabrics woven from cotton yarn or cotton and cotton-type chemical fiber blended yarn. It has the following characteristics:
1. It has strong hygroscopicity and a large shrinkage rate of about 4~10%.
2. It is resistant to alkali but not acid. Cotton cloth is extremely unstable to inorganic acids and will be damaged by even very dilute sulfuric acid, but organic acids have a weak effect and have almost no destructive effect. Cotton cloth is more resistant to alkali. Generally, dilute alkali has no effect on cotton cloth at room temperature, but after the action of strong alkali, the strength of cotton cloth will decrease. Cotton cloth is often treated with 20% caustic soda solution to obtain “mercerized” cotton cloth.
3. Light resistance and heat resistance are average. Cotton cloth will be slowly oxidized in sunlight and atmosphere, causing its strength to decrease. Long-term high temperature will cause damage to cotton fabric, but it can withstand short-term high temperature treatment of 125~150℃.
4. Microorganisms have a destructive effect on cotton fabrics. Shown as intolerance to mold.
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