Identification of polyester-cotton yarn and polyester-viscose yarn Untwist the two yarns, and then look at the length of the single fiber; whether the polyester cotton yarn is polyester staple fiber or cotton fiber is usually cotton type, the cut length of polyester is 38mm, and cotton contains long-staple cotton. The length is 23mm~45mm. If the…
Identification of cotton yarn and rayon yarn 1. Cotton yarn will not emit sparks when it burns, while rayon yarn will emit sparks, and the burning speed is faster than cotton yarn. 2. Cotton yarn moistened with water, its strength will not decrease, while rayon yarn moistened with water, its strength greatly decreases, and the…
Discrimination of air-jet spinning and vortex spinning The air-jet yarn structure is divided into two parts: the core and the outer fiber. The yarn core is parallel and twisted. The structure is tight. The outer fiber is loose and irregularly wound outside the yarn core. Therefore, the air-jet yarn has a looser structure and a…
How to identify textile fibers quickly and effectively? This article introduces the identification methods of various types of fibers in detail, come and learn with the editor. Burning and hand feel visual inspection method It is a method of identifying fibers by seeing and touching. The principle is a method of qualitatively identifying textile fibers…
1. The calculation formulas commonly used in textiles are divided into two types: fixed-length calculation formulas and fixed-weight calculation formulas. (1) Denier (D) = g/L*9000 where g is the weight of the silk thread (grams), and L is the length of the silk thread (meters) (2), tex (number) [tex(H)]: tex=g/L*1000 where g is the weight…
advantage: 1. Hygroscopicity: Cotton fiber has good hygroscopicity. Under normal conditions, the fiber can absorb moisture from the surrounding atmosphere, and its moisture content is 8-10%, so it touches human skin and makes people feel soft Without being stiff. If the humidity of the cotton cloth increases and the surrounding temperature is higher, all the…
The so-called textile (fabric) is made of textile fibers and yarns, which are soft and have certain mechanical properties and thickness. The fabric in the conventional concept is a kind of flexible flat thin material, which is mostly formed by weaving, knitting, knotting or fixing fibers through a net, that is, the yarns are crossed,…
1. Polyester knitted labor fabric: This kind of fabric is tight and thick, strong and wear-resistant, firm and elastic. If the core yarn containing spandex is used as the raw material, it can be woven into elastic knitted denim with better elasticity. Pants mainly used for men’s and women’s tops; 2. Polyester yarn-dyed knitted fabric:…
Knitted fabrics can be divided into warp knitting and weft knitting according to the knitting method. Synthetic filaments such as polyester, nylon, vinylon, and polypropylene are often used as raw materials, and cotton, wool, silk, linen, chemical fibers and their blended yarns are also used as raw materials for weaving. It has the advantages of…
Modern knitted fabrics are more colorful and have entered the stage of development of multi-functionality and high-grade. New knitted fabrics with various texture effects and different functions have been developed, bringing unprecedented sensory and visual effects to knitwear. 1. Acetate knitted fabric Acetate fiber (Acetel) has the unique properties of real silk, fiber luster and…
