FYI Tester Instrument

  What is meant by cotton openers? The primary goal of a cotton opener is to loosen and remove impurities from raw materials. Opening machine raw cotton opening and impurity removal effect process is complementary to each other, the raw cotton loose into small cotton bundle at the same time, so that the fiber and impurities separation, through the mechanical stray part to complete the impurity removal effect. 1. The cotton roll composed of fibers sent by the cotton cleaning process is carefully opened and separated before the fiber is damaged, so that the fiber bundle is separated into a single fiber. 2. Get rid of impurities in cotton rolls, such as broken seeds, seed crumbs, infertility seeds, soft seed skins, dust, non-spinning fibers, fiber bundles that can’t be combed open and fibers adhering to impurities, and have the ability to recover spinnable fibers in the process of removing impurities. Characteristics of cotton opener 1. Use large rolls and several small rolls to rotate an

  What is perspiration fastness? Perspiration fastness is the degree of color retention of textiles in sweat, which is especially important for clothing products. During daily use, the textile stays in close contact with the skin for a long time. At the same time, contact with the sweat secreted by the skin will have a great impact on some dyes, causing them to transfer from the textile to the skin. Some of the dyes on textiles are not resistant to acid and some are not resistant to alkali. Therefore, during the test process, it is necessary to prepare acid and alkali artificial sweat to simulate the acid-base sweat of the human body. And test the textiles at 37°C to simulate human body temperature, mainly for textiles that are in contact with the skin. The standard of perspiration fastness At present, the common test standards for perspiration fastness mainly include: “Tests for Color Fastness of Textiles Part E04: Color Fastness to Perspiration” (ISO 105-E04: 2008); “Color Fastness t

  Light fastness refers to the ability of colorants and polymer systems to maintain their color when exposed to sunlight. The main reason for the color change of colored products exposed to sunlight is the damage of ultraviolet rays and visible rays in sunlight to colored products. The color fastness to light test refers to a test method for testing the degree of coloration of an object against exposure to light under specific conditions. It is an important data to measure the light fastness of various substances under different exposure environments. In daily engineering technology applications, light fastness is one of the main indicators for judging materials. The most common use of light fastness testing is to measure the light fastness of inks, dyes, plastics, coatings and other materials under exposure conditions. Types of the test method Generally speaking, the light fastness test is divided into two types according to different modes: time exposure mode and uniform exposure mod

  What is a cone winding machine? Cone winding is the first process of preparation before weaving, its task is to process the pipe yarn or hank yarn from the spinning department into certain requirements on the winding machine. As the last process of spinning and the first process of weaving, winding plays the role of “bridge”, so it plays an important role in the field of textile. The speed of  cone winding machine The speed of cone winding machine should be determined according to the quality of yarn, the better the quality of yarn is, the less the deterioration of the tube yarn will be, on the contrary, the deterioration will increase; At the same time, the winding speed is closely related to the unwinding tension of the yarn, and the unwinding tension at low speed is smaller than that at high speed. In the whole unwinding process, large and medium yarn tension is relatively small, less unwinding, winding speed can be slightly higher, but when unwinding to the small yarn part, unwin