Poplin fabric design
When designing poplin, it is advisable to use the same number of warp and weft yarns. 2. The initial configuration of the warp and weft yarns. The warp yarn twist should be smaller and the weft yarn twist should be larger (higher rigidity and smaller overlap with the warp yarn). This not only helps the rhombus particles to stand out clearly, but also improves the feel and finish of the fabric. 3. Configuration of warp and weft twist directions: Warp and weft yarns adopt different twist directions. In this way, the fibers tend to be consistent, intact, the contact areas are loose, and the cohesion is small, which is conducive to clear and protruding particles. 4. Raw yarn requirements In order to fully reflect the style characteristics of poplin fabrics, the spun yarn must meet the requirements of “complete, clean, even, and firm”, that is, the spun yarn has less hairiness, fewer and smaller neps and impurities, even slivers, and strong strength. good. Among them, the relationship between evenness and poplin style is close, especially the evenness of weft yarn, which has a significant influence. Uneven spinning lines will cause the cloth surface to be uneven, rough to the touch, and have obvious stripes. Therefore, poplin fabrics usually use long-staple cotton with fine and long fibers. For dark poplin, the maturity of the cotton fiber should be good so that the color is even, deep and bright. 5. Others (1) Selvage: Generally poplin does not need selvage because its Pj>Pw, the weft shrinks and the warp shrinks greatly. Adding selvage will produce tight or loose edges, which will not have a good effect. (2) Weaving and The style is combined, and the warp and weft are mostly made of extra-fine special strands or fine warp strands and thick weft yarns. (3) When dyeing and finishing pure cotton poplin, great attention should be paid to the pre-treatment process. Especially for poplin with high tightness, it must be completely deflated (starched), boiled (cooked) thoroughly, bleached (whitened) well, and processed thoroughly. When washing and wearing, pay attention to the color fastness index.
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