Compared with the traditional “spinning first and then dyeing” process, the process of producing mélange yarn shortens the post-processing production process, reduces production costs, makes the added value of the product higher and the production process cleaner. Since mélange yarn spinning mills can arrange production in small batches and multiple varieties, mélange yarns are increasingly used in today’s high-end apparel products, reflecting the elements of fashion, health, comfort, sports, and environmental protection. However, the production process of color-spun yarns has very high requirements for product quality management.
Even color mixing is the basic requirement of manufacturing color-spun yarn. The fiber raw materials provided by different suppliers have color difference, which makes the color mixing of mélange yarn more difficult. Fortune Cat® Mélange Yarn Factory has decades of color-spun yarn production experience, its complete yarn color matching management system and experienced R&D and production staff makes the tone of different batches of mélange yarn soft and even.
For manufacturing mélange yarn, proofing is one of the core technologies. At Fortune Cat® Mélange Yarn Factory, customized proofing can be accurately completed within 3-7 days.
Tests have shown that for every 9% to 11% increase in neps and 3% to 8% increase in short pile, the single cotton fiber strength will decrease by 10% to 20%. Therefore, when cotton is used as raw material, raw cotton with less neps, impurities, and short linters should be selected to ensure spinning quality. Here at Fortune Cat® Mélange Yarn Factory, we firmly believe that better cotton means better yarn. In order to have a better quality of mélange yarn finished products, we are especially strict in the management of the cotton distributing process.
The carding process must not only ensure the carding quality, but also reduce the damage of the colored cotton. Seal the licker-in screen, Increase the gap between the thorny roller and the board to 0.46 mm, reduce the licker roller speed to 775 r/min; the cylinder speed is 360 r/min, and the cover speed Within 290 mm/min, the doffer speed is 22 r/min; The cylinder speed is 360 r/min, the cover speed is within 290 mm/min, and the doffer speed is 22 r/min; adjust accordingly according to the actual situation of the colored cotton fiber, in order to reduce color knots, generally within the range of 0.16 to 0.24 mm Adjust the distance between the cylinder and the doffer to be 0.17mm; each carding element should be kept flat, clean and sharp to facilitate the smooth transfer and stripping of the fiber.
The winder is equipped with USTER electronic yarn clearer. Appropriately install waxing device, and control the waxing amount at the same time, generally between 0.8 ~ 2.2 g/kg. According to yarn usage, design a reasonable electric cleaning process. Controlling the temperature and humidity in the workshop is beneficial to reduce the accumulation of short lint and avoid the formation of new thick neps and color neps. Try to use the “low speed, small tension” process principle, and require the dynamic friction coefficient to be below 0.2. The parameter setting of the electronic yarn clearer for mélange yarn is mainly to remove neps and short thick knots.
The above content briefly introduces some of the key points of quality control in the production process of mélange yarn spinning. We will continue to focus on product quality control management and provide customers with satisfactory products and services!