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(1) The low-melting fiber and the conventional fiber are unevenly mixed, the part with a higher low melting pointcontent is harder, and the lower part is softer.
(2) The melting of the low melting point fiber is not complete, resulting in a softer nonwoven fabric(Polyester Felt Sheet Wholesale)
(3) The high shrinkage rate of the fiber also causes the problem of uneven softness and hardness of the nonwoven fabric.
Thinner non-woven fabrics are more prone to short code reasons
When the non-woven fabric(China Polyester Felt Sheet Manufacturer) is taken up, the speed of the finished product will become larger and larger. At thesame winding speed, the linear speed will become larger and larger. The thin non-woven fabric(Needle Punched Felt Fabric On Sales) will easily be stretched due to the small tension. Short-code problems occur after the roll is released due to tension. As for the thickerand medium-sized products, the production of tensile strength is larger, resulting in less stretching, and it is not easy to cause short-code problems.
Reasons why hard cotton is produced after the work roll is wrapped with cotton
The work roll is entangled during production. Most of the reason is that the oil on the fiber is low, the friction coefficient between the fiber and the clothing is abnormal. The fiber sinks under the clothing and the work roll is entangled. The fiber wrapped around the work roll can not be moved, gradually melted into hard cotton after constant friction between the clothing and the clothing. To eliminate the entanglement, the winding of the entanglement on the roller can be eliminatedby lowering the work roll. In addition, it is easy to form a work roll lingering problem in case of long sleep.
What is the optimum ratio of lowmelting point fiber content?
The low melting point fiber content depends on the hardness of the product. The higher the hardness required forthe product, the higher the ratio of low melting point fiber. Generally, the dispersion effect of the resin fiber low-melting fiber is confirmed, and it isconfirmed that the low-melting fiber has a minimum heating temperature of more than 150 °C, andthe amount of the low-melting fiber can be effectively reduced.