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The same processing conditions first produced non-woven Why is not soft and hard
The same processing conditions caused by non-woven non-uniform soft and hard causes and the reasons for the formation of uneven thickness of the main reasons are the following:
First,the low melting point fiber and conventional fiber blending uneven,the lower part of the higher melting part of the harder,the lower part of the softer;
Second,low melting point fiber melt incompletely caused by non-woven soft;
Third,the fiber shrinkage rate will form a non-woven non-uniform soft and hard problems.