The effect of fiber properties on the properties of non-woven fabrics

Non-woven fabric is a kind of fabric that does not require spinning or weaving. It is oriented or random arrangement of textile staple fibers or filaments to form a web structure, and then mechanical, thermal bonding or chemical methods are used. reinforced.

So what are the effects of fiber properties on the performance of non-woven fabrics, and what are the effects? The following six points will solve your doubts:

(1) Fiber length: long fiber length, high strength and good uniformity of the product. However, if the fiber is too long, it is not conducive to carding, and it is easy to produce fiber knots. Airlaid generally uses fibers of about 10mm, and mechanical carding generally uses medium and long fibers less than 65mm 

(2) Linear density of fibers: low linear density, high product strength, and good uniformity. However, when the linear density is large, the resilience of the fiber is good.

(3) The degree of crimp of the fiber: the degree of crimp is insufficient, and the cohesion between the fibers is poor, so it is difficult to form a web, the uniformity of the fiber web is poor, the strength is low, the non-woven fabric has poor hand feeling and poor elasticity.

(4) The cross-sectional shape of the fiber: the contact area of u200bu200bthe foreign fiber is larger than that of the circular cross-section fiber, and the strength is high, and the obtained non-woven fabric has high strength.

(5) The friction coefficient of the fiber surface: the friction coefficient is large, the tangential resistance between fibers is large, and the non-woven fabric has high strength. However, if the friction coefficient is too large, the puncture resistance will be increased, making it difficult for acupuncture and causing the needle to break.

(6) Characteristics such as fiber strength: Generally speaking, the stronger the fiber is, the stronger the product is. 

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