Hot air stenter is one of the many types of the stenter and it is more obvious difference between the other stenters is the heating device ,it is through the hot air directly heating on the fabric , while some stenters make air as heating source ,such as air stenter .
In fact the stenter’s process itself is developed on basis of extrusion molding. The fabric after the treatment of hot air stenter is obbious differences between the products that no treament and from the appearance can be distighuished .
Tests have shown that the fabric is treatment by the hot air ,the strength has been significantly improved , can be achieved without processing products 3-5 times; and the fabric surface gloss will become better, the permeability of the fabric decreases with water and air and improve the value-in-use.
The fabric after treatment by hot air stenter , the thickness of the fiber has been reduced ,but the width is increased , so that reduce the production cost. In addition, its heating resistance will be improved ,it will not be easy to be deformation under the high temperature .
When the material is stretched in the stenter ,if the stretched is in one direction is called uniaxial tension,at that time the molecules in the material are aligned along the single axis; but if stretch is in different direction,that is double - axis tension . the molecules are aligned along the double-axis.
In contrast , the uniaxial stretching of the hot air stenter machine is widely used in synthetic fibers . But it's easy to tear apart in the direction of the stretch. So now the machine is adopted double-axis tension to ensure the quality and performance of the fabric.
WUXI XINDOU DYEING&PRINTING MACHINERY CO.,LTD
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