Last Updated on: 29-Feb-2024 (4 months, 27 days ago)
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False twist is a texturing method used in the manufacturing of synthetic fibers and yarns to produce a more bulky, soft, and stretchy product. It is a process that involves twisting a yarn at a high speed to create a spiral crimp, which changes the physical and mechanical properties of the yarn, giving it an increased bulk and a softer feel.
The process of false twist texturing involves heating the synthetic yarn, usually polyester or nylon, to a temperature that makes it more pliable. The yarn is then fed into a twisting machine that twists it at a high speed, creating a spiral crimp. The yarn is then cooled rapidly to set the crimp in place. The twisting process causes the fibers in the yarn to be rearranged, and this change in structure gives the yarn a more bulked-up appearance.
False twist is a widely used texturing method in the textile industry due to its versatility and flexibility in producing various types of yarns. The yarns produced through the false twist process have excellent elasticity, stretch, and recovery properties, making them ideal for use in a wide range of applications, including apparel, home furnishings, and automotive textiles.
One of the most significant advantages of the false twist texturing process is its ability to produce yarns with varying levels of bulk, stretch, and texture. This means that manufacturers can customize yarns to meet the specific needs of different textile applications. For example, yarns with higher levels of bulk and texture are ideal for use in upholstery fabrics, while those with a softer hand feel are better suited for apparel fabrics.
Another benefit of the false twist texturing process is its ability to produce yarns with excellent dyeability. The twisting process creates more open spaces between the fibers, allowing for better penetration of dye molecules, resulting in deeper, more vibrant colors.
Many manufacturers around the world use the false twist texturing process to produce a wide range of synthetic yarns, including polyester, nylon, and polypropylene. Some of the leading false twist yarn manufacturers include Sinterama, Unifi, Indorama Ventures, and Far Eastern New Century Corporation.
Sinterama, based in Italy, is a leading global manufacturer of polyester yarns and specializes in producing high-quality yarns for fashion, technical, and industrial applications. The company uses advanced false twist texturing technology to produce yarns with varying levels of bulk and texture, and its products are sold in more than 50 countries worldwide.
Unifi, based in the United States, is another leading producer of synthetic yarns, including polyester and nylon. The company's proprietary false twist texturing process, known as Repreve, uses recycled materials to produce high-quality yarns that are used in a wide range of textile applications, including apparel, automotive textiles, and home furnishings.
Indorama Ventures, based in Thailand, is a global producer of polyester and PET resins. The company's polyester yarns are produced using advanced false twist texturing technology and are used in a wide range of textile applications, including apparel, home furnishings, and automotive textiles.
Far Eastern New Century Corporation, based in Taiwan, is one of the largest polyester and nylon producers in Asia and specializes in producing high-quality yarns for a range of textile applications. The company uses advanced false twist texturing technology to produce yarns with excellent bulk, stretch, and texture properties, and its products are sold in more than 60 countries worldwide.
In conclusion, false twist is an important texturing method used in the manufacturing of synthetic fibers and yarns. It is a versatile process that allows for the production of yarns with varying levels of bulk, texture, and stretch, making them ideal for use in a wide range of textile applications. Some of the top manufacturers of false twist yarns include Sinterama, Unifi, Indorama Ventures,
Turns inserted in opposite directions and in equal numbers in adjacent elements of yarn, silver (q.v.) or similar aggregations of fibres or filaments, and that are characterised by their temporary nature.
NOTE:
False twist may be used as follows:
a) To produce effects, e.g.
1. the entanglement of fibres while false-twisted;
2. a measure of permanence to the twisted form by heat-setting the false-twisted yarns.
b) To assist processing, e.g.
1. the passage of sliver from "noble" comb to can;
2. the attenuation of rovings (q.v.) on a condenser ring frame
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