What are the main influences of yarn variety on fabric properties ? Cotton yarn Cotton yarns are divided into carded yarns, combed yarns and waste spinning yarns according to a spinning system. 1 Carded yarn: The fiber arrangement is not neat, the strips are not uniform, the structure is soft, and the hairiness is more. The woven fabrics are full-faced, soft-feeling, comfortable to wear and warm. 2 Combed yarn: The fibers are arranged neatly, evenly and evenly, with tight structure and less hairiness. The woven fabric structure is compact, smooth, smooth, smooth and shiny. 3 waste spinning: spun with short-cut or short velvet, the sliver is coarse, and the evenness of the sliver is poor. It is used to weave fabrics such as cotton blankets. From the point of view of the single yarn or strand weaving, the cotton single yarn is soft and has many hairinesses. The fabric formed by the weaving is plump, soft and comfortable to wear. The structure of the cotton strands is tight, the evenness of the strips is improved, the fabric structure is fine, the surface is smooth, smooth, firm, and wear-resistant. Wool yarn Wool yarns are divided into combed yarns and carded yarns according to the spinning system. 1 Combed wool yarn: fine sliver, smooth, smooth, even, shiny, flexible. Most of the worsted wool fabrics use strands. The fabrics are smooth, clean, fine, stiff, elastic, and good. 2 carding yarn: fiber straight poor, soft. Wool wool fabrics are mostly made of single yarn, and they are woven and velveteen. The cloth body is rich and soft, and the warmth is good. The dough is smooth and does not show shading or half shading. Yarn Ma has ramie, flax, jute, sisal and other varieties, taking the fabric more than the first two. 1 Castor: According to the spinning system, there are long hemp and short hemp spinning. Long hemp spinning can process finer yarns and is more used. The ramie yarn is rigid, uneven in size, and has many hairinesses. It is made of a single yarn and woven, the fabric is stiff and cool, and it has a unique style of bamboo stripe. 2 Linen: According to the spinning system, there are the points of long and short hemp spinning, as well as the difference between dry spinning and wet spinning. It is commonly used as long-staple wet spinning yarn. The yarn is fine, the yarn body is smoother and the bamboo stripe is also used. More than a single yarn weave, fabric performance with castor, but more smooth. Filament Silk or chemical fiber filaments, fine and uniform, no hairiness, good gloss. The filament fabric is soft, even and smooth, and has a good gloss. Blended yarn The blended yarns are mixed after different fibers are spun to complement each other, thereby improving yarn formation and fabric properties. The polyester blended yarn, cotton soft, absorbent, polyester high strength, good elasticity; cotton blended fabric softening, moisture, crisp, non-iron. Fancy yarn Fancy yarns enrich the fabric color, enhance the three-dimensional fabric, and change the surface condition of the fabric. For example, the colorful yarns make the fabric rich in color and increase the liveliness ; the terry threads enhance the fabric's three-dimensional effect. New yarn The new yarn rich fabric performance and style. Such as the core yarn inside and outside the different properties, both the performance of two fibers, but also can be processed into burnt-out fabrics. The network silk yarn body is fluffy, soft, full-feeling, with soft luster and strong fabric-like feel. The air flow yarn is soft, wear-resistant and has strong dyeing power. It is used in thick fabrics, velvet fabrics, and decorative fabrics. The fabrics are thick and bright. What are the main effects of yarn twist on fabric properties ? Refers to the twist of the yarn twist direction of the twist of the yarn, and twisted fibers upper left to the lower right inclination, s is twisted, the twisted fibers from the lower left to the upper right inclination, a Z-twist. The orientation of the yarn affects the surface gloss of the fabric, the clarity of the fabric texture, and the feel and thickness of the fabric. When different warp and weft yarns are used, as shown in Fig. 2-2(a) , the warp yarns are z and the weft yarns are S. The weft yarns are intertwined at the contact points where the fibers cross each other, so that the warp and weft yarns are entangled. Poor performance, easy to slip. The fabric of this twist-to-tie fabric has prominent tissue points due to its large flexion, clear lines, soft and soft touch, and a fabric thickness thicker than that of the warp and weft in the printing and dyeing process. Better color, easy to dye evenly. However, the tension of the fabric falling from the loom is reduced. Because the yarn has a tendency to recede, it is easy to produce a roll cloth phenomenon, especially for thin fabrics, this phenomenon is more significant. When the warp and weft yarns are twisted in the same direction, as shown in Figure 2-2(b) (all warp and weft yarns are zæ») , the situation is opposite to the above. When weft yarns are used in warp and weft yarns in fabrics, the fibers on the surface of the fabric are diagonally uniform. As shown in Figure 2-2(a) , the reflection direction of light is also the same, and the gloss of the fabric is better. Figure 2 -2(b) shows that the warp and weft directions are the same, and the opposite is true. The fibers on the surface of the fabric are diagonally perpendicular to each other. The reflection of the light by the fabric is a scattering effect, and the fabric is soft and shiny.
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January 25, 2023