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 rotat...

  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 Fastne...

  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...

  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 pa...

  The process of combining yarn is the preparation process of yarn twisting or yarn doubling. However, two or more yarns are twisted, resulting in a yarn of higher strength, greater uniformity, special color combination and special structure. From a single yarn, the production of twisted yarns is divided into two stages: several yarns are first combined on a spinning machine, and then twisted together on a twisting machine. The weaving process is the first stage and the twisting process is the second stage. When using double twisting machine or ingot can twisting machine, with three or more yarns to produce twisted yarn, the process of merging is essential. For two strands of yarn, there are two process lines that can be applied in double twist: First, the classic method of double twist winding is used. The second method is to use two single yarns rolled up and down the double supply of yarn rolling placement. What is the use of  twisting machine ? Double twist machine is a ki...

  What is the principle of rotor spinning machine? Rotor spinning is a new spinning technology which uses air flow to condense and twist fibers in a spinning cup with high speed rotation. He does not use spindle, mainly rely on comb roller, spinning cup, false twist device and other parts. The carding roller is used to grab and comb the feed of the cotton strip fiber, through the centrifugal force generated by its high-speed rotation can throw out the grabbed fiber. The spinning cup is a small metal cup that spins more than 10 times faster than the comb roller. The resulting centrifugal action pushes the rotor out of the cup. According to the principle of fluid pressure, make the cotton fiber into the rotor cup, and form the fiber flow, along the inner wall of the cup constantly movement. ​ What is rotor spinning machine? Unlike ring spinning, rotor spinning does not use spindle twisting, winding and forming. It mainly relies on several parts such as carding roller, spinning cup an...

  What is ring frame machine? Ring frame machine: a spinning machine in which half products of roving or sliver are drawn, twisted and wound into muslin in the spinning process; sliver is drawn and twisted on a roving machine to make roving; a combing machine to carding fibers into combing slivers; a needle carding machine to combine slivers; needle drawing improves sliver structure; roving is further twisted into muslin on a ring spinning machine; spinning machine is the main machine for spinning. The output and quality of fine yarn are the comprehensive reflection of each process of spinning technology. What is the importance of  ring frame machine ? The spinning process is the last process of spinning, but also an important process of the textile factory, the total number of spinning process is an important symbol to measure the size of the cotton textile factory and production capacity, the output of spinning process determines the textile factory each process of mechanica...