Concave-convex silk fabric design-utilizing raw material properties
This method mainly uses the performance difference between raw materials with larger shrinkage properties (nylon, chlorine fiber, etc.) and raw materials with smaller shrinkage properties (factory yarn, viscose fiber, etc.) to form a double-layer structure to achieve unevenness. Type effect, usually the surface layer is made of materials with smaller shrinkage properties (i.e. less elasticity), and the inner layer is made of materials with larger shrinkage properties. Because the surface and inner layers have different shrinkage properties, and rely on their The elasticity promotes the protrusion of the bag tissue in the surface pattern part. Since the tissue points are relatively tight after the ground texture is joined, the shrinkage is small, flat, and neat. However, if polyester fibers are used to make various uneven types of fabrics, they must be heat treated to shrink and shape the fibers, resulting in uneven textures. Effect. When the same raw material or raw materials with small differences in shrinkage properties are used to form a concave-convex fabric, the inner warp and weft raw materials can be strongly twisted. After the finished product is blanched or finished after being discharged, the inner warp and weft will shrink significantly and cause the surface to bulge. When using the same method to design concave and convex fabrics, you must pay attention to the following matters: First, the pattern layout must be even, the size of the pattern and the density of the actual and empty patterns must be appropriate, and there must be no significant difference to avoid “uneven shrinkage of the silk surface”. Breathing” and uneven door width. Secondly, the convex pattern area should not be too large, and the pattern shape must be uneven. Patterns that are too loose or too tight (such as squares) should be avoided to prevent the pattern from being insufficiently full and wrinkled and deformed. Thirdly, the side warp must be made of the same crepe material and the same weave as the inner warp to prevent tight edges from being produced because the shrinkage of the side weave is greater than the shrinkage of the finished product. Also, do not make the side weave less than the shrinkage of the finished product to produce a “ruffled edge.” . The concave and convex silk made of crepe has the characteristics of lightness, comfort and softness; its disadvantage is that the process is relatively complicated and the fabric cannot be firmly shaped.
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