Yarn-dyed fabrics are high-grade fabrics of various colors and organizations. They have high requirements for yarn products. The quality of yarns directly affects the warping and weaving breakage, the efficiency of weaving, and the quality of the final product. The requirements for cloth yarns are usually higher than those for common dyeing fabrics. 1, yarn-dyed fabric requirements for yarn defects The length of one point in national standard is 0.3–8CM, while the length of one point in international standards is less than 7.62CM, which is 3 inches. The standards vary greatly. The control of yarn hanks is not just the control of standard yarn gongs. Most yarn woven companies in China control small yarn quilts and middle yarn quilts as the main indicators. 2. The requirements of yarn-dyed fabrics on nep Yarn-dyed fabric companies are not only concerned about +200% neps, but also about the number of +140% neps, such as good quality 40 yarn-dyed yarn +200% nep to 10/1000m, +140% nep to 150 Grain/1000 meters below. Of course, different fabrics have different requirements for neps, such as the general grid cloth requirements +140% neps <400 / 1000 meters, +200% neps <70 particles / 1000 meters, while the high-grade rice cloth requirements +140 %Neps<150 tablets/1000m, +200% Neps<20 tablets/1000m, and the requirement for youth cloth or sliver cloth is centered. 3, yarn-dyed shirt fabrics on the original yarn requirements Generally, the CV% of the dry yarn of the yarn dyeing yarn is better than the 25% level of the Ust Bulletin to meet the quality requirement of the fabric. At the same time, yarn-dyed fabrics have strict requirements on the regularity of the raw yarn caused by mechanical reasons. In particular, the regularity of the yarn due to the failure of the front roller and the front roller of the spun yarn causes great damage to the fabric. 4, Yarn-dyed shirt fabrics on the requirements of the opposite fiber The heterogeneity of fibers is a tricky problem in spinning mills. When the yarn-dying factory uses yarns made of fine piles of cotton, sometimes the number of foreign fibers can reach 30-40 places per 10 meters. Although foreign fiber cleaning devices have been added to the spinning process and the winding process, there are often many foreign fibers on the fabric. According to the rating rules for fabric defects, the requirements of the customers are still not met. Yarn-dyed factory should organize a large number of artificial fabrics to repair foreign fibers. Therefore, the less heterosexual fiber is, the better it is for yarn dyeing yarns. 5, the requirements of yarn dyed cloth hairiness Hairiness plays a crucial role in the quality control of yarn-dyed fabrics. First of all, because the warp and weft yarns of yarn-dyed fabrics are all dyed through yarns, the process flow is long. During the process of rewinding and dyeing, the hairiness increases a lot, which can easily cause the hairiness to gather into thick sections, affect the quality of the fabric, and even cause the fabric to fall. And so on; Secondly, uneven hair can easily cause different shades of color; Finally, many yarn hairiness, will affect the fabric of pilling. 6, yarn-dyed fabrics single yarn strength requirements The yarns used in yarn-dyed fabrics can reach the level of 25% Uster, which can basically meet the needs of weaving yarns. As for some special finishing yarns, special raw cotton is needed for production. In addition, when it comes to yarns for daily use, the yarn-dyed factory also pays special attention to minimum strength. As with the principle of short barrels, a batch of yarn is not dependent on the best quality yarn, but on the worst quality yarn. Therefore, in the daily production management of spinning mills, special attention should be paid to the minimum strength and elimination of backward spindles. The above describes several major indicators of yarns used in yarn-dyed fabrics. The quality indicators not mentioned, such as rough knots, details, and twists, are also the focus of the yarn-dyed factory. Maintaining a stable yarn quality and consistently controlling the yarn quality are important prerequisites for the production of excellent yarn-dyed fabrics. Dresses that transition summer to fall, real life to road trips and back again. There're many styles for your selection, including A-line skirt, strapless sundress, pleated skirt, straight skirt, braces skirt, one piece dress and son on. ladies' dresses. skirt Shaoxing PinSheng Garment co,ltd , https://www.psfsshirts.com
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December 15, 2022