The friction between relative humidity and mechanical surface charged with friction between fibers or fibers, will inevitably cause the fibers when the fiber and the body charged with different charges, will hinder the fiber tensile, carding, weaving and winding process.
When the fibers with different charges, will make the fiber do not hold together, hairiness is fascicular, caused by warp breakage and cross weaving hair, so that more, make the fabric rough and the formation of dispersed shadows, increasing the relative humidity of the air, can make the fiber specific resistance is reduced, in order to increase the charge dissipation rate. In order to eliminate static electricity.
Relative humidity has a low relative humidity on the spinning process, and the yarn strength decreases and the breakage increases.
The relative humidity is too low and the electrostatic effect is enhanced.
When the relative humidity is too low, the yarn lines are dry and the hairiness increases.
Low relative humidity increased, fly.
The relative humidity is too low and the processing capacity is low.
Relative humidity and moisture regain are related to the relative humidity of the air, and the moisture regain of the fiber is also different. As the relative humidity of the air increases, the moisture regain of the fiber increases, but it decreases.
The relationship between relative humidity and strength, relative humidity has great influence on the strength of fiber. It can enhance and improve the whole column and increase the strength of long chain molecules. For cotton fiber, when relative humidity is 60-70%, its strength is 50% higher than that of dry state.
The relationship between relative humidity and extension length is due to the increase of distance between molecules, and the relative displacement is easily produced by external force. Therefore, the elongation of fiber increases with the increase of relative humidity. Wool, rayon and viscose fiber are easier to elongate than natural fibers such as cotton and linen after moisture absorption. As for synthetic fibers, such as polyester, moisture absorption is relatively poor, so relative humidity has little effect on elongation.
The relationship between relative humidity and softness is that when the relative humidity increases, the hardness and brittleness of fibers will decrease as the distance between molecules increases, so that the softness of fibers will be greatly improved.