50. What impact does the tissue density and tightness of fabric have on fabric performance?
Answer: Different fabric structures can produce different patterns or textures, such as particles reflected in the appearance of plain weave, diagonal lines reflected in the appearance of twill weave, and floating lines reflected in the appearance of satin weave.
In addition to affecting the appearance and texture of the fabric, the organization also affects the style of the fabric and the intrinsic quality of the fabric that people feel. For example, plain weave fabric has a firm texture; satin weave fabric has a smooth and even surface, full luster and soft texture.
The density of woven fabric refers to the number of yarns arranged in the unit length of the fabric in the longitudinal and transverse directions. Fabric density has a great impact on its wearing properties such as strength, elasticity, feel, body, breathability, and breakage rate during the weaving process. When the warp and weft density is high, the fabric appears tight, thick, stiff, wear-resistant, and strong; when the density is low, the fabric is thin, soft, and permeable.
If the warp and weft yarns used in fabrics of the same density are different in thickness, the actual density of the fabric will be different. When comparing the tightness of fabrics with different thicknesses of yarns, the fineness and density of warp and weft yarns must be considered at the same time. This is the tightness. Tightness is the relative density of the fabric. It is the diameter of the warp (weft) yarns relative to the adjacent ones. The ratio of the average center distance of two warp (weft) yarns, expressed as a percentage. If the fabric is too tight in the warp and weft directions, the rigidity will increase, the wrinkle resistance will decrease, the flat abrasion resistance will increase, the torture resistance will decrease, and the hand will feel stiff; if the tightness is too small, the fabric will be too loose and lack body bones.
It should be pointed out that the warp tightness, weft tightness and total tightness of the fabric are mutually restricted; when the total tightness is certain, the fabric is tight when the warp tightness and weft tightness are approximately equal. The rigidity is high; while the warp tightness is greater or less than the weft tightness, both make the fabric soft and drape well. Different values of warp tightness and weft tightness also affect the warp and weft breaking strength of the fabric.
AAAJH. LK‘PO[IUYUKT
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