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.