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What is the reason for the uneven thickness of the non-woven fabric produced under the same conditio

  • Author:Junqian Nonwoven
  • Source:Original
  • Release on:2018-02-07
In the same production process, the production of non-woven material will appear non-woven material is not the same hard and soft thickness. Some differences can not be controlled in fact, here we come to talk about the same under the production process of non-woven fabrics What is the difference?

First of all, in the same kind of production process appears non-woven soft and hard not the same reason, there are about the following aspects.

First,A high fiber shortening rate will constitute a non-woven non-uniform soft and hard problems.

Second,Low melting point fiber melt incompletely composed of non-woven fabric softer;

Third, the lower the melting point of the higher part of the harder, the lower part of the softer; low melting point fiber and the conventional fiber blending uneven.

The problem of unevenness in thickness occurs simply due to shortening during the production of the non-woven fabric. Whether the conventional fiber or the low-melting-point fiber has a high hot-air shortening rate of the fiber, Also contributed to the high fiber shortening the reason.

The marginal non-woven fabric has a sufficient thickness of non-woven fabric because of the caloric content, and the non-woven fabric located in the center portion is less likely to form a thinner non-woven fabric due to the simpler heat. Generally, it is not easy to have a problem of temperature failure, but special attention should be paid to products with a high basis weight and a high thickness. Low melting point fiber melting incomplete, mainly due to the temperature not work, on the low basis weight non-woven fabric. Also caused the low melting point fiber melting incomplete reason.

Due to the inability to form a reticulated structure, the nonwoven fabric is thinner and relatively thick in the local area where the content of the low-melting-point fiber is relatively large. For example, Japan 4080, South Korea 4080, South Asia 4080 or Far East 4080 have different cohesion, and if the low-melting fibers are not uniformly dispersed and the content of the low-melting fibers is small. Different fibers have different cohesion, wholesale non-woven fabrics in general, low melting point fiber than the conventional fiber has a larger cohesion, but also more simply dispersed. This also causes the low melting point fiber and conventional fiber blending uneven reasons.

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