FYI Tester Instrument

  Introduction Coating machine is a machine equipment that can perform coating processing, mainly used for surface coating of industrial materials such as paper, plastic film, leather, etc. According to the usage scenario and scope, coating machine is mainly divided into two types: industrial coating machine and laboratory coating machine. According to the relationship between the coating machine and the paper machine, it can be divided into internal and external types, and according to the number of coating times, it can be divided into single-layer coating and double-layer coating. In machine coating refers to the installation of a coating machine on a paper machine, which enables continuous papermaking and coating processes; External coating refers to the use of three types of coating machines, namely roll coating machine, air knife coating machine, and blade coating machine, which are independent of paper machines and are mainly used for coating operations. Coating machine also...

  For cotton fiber testing, there are 6-items of cotton fiber properties as below, which should be checked normally: 1.    Length 2.    Maturity (Micronaire value) 3.    Moisture 4.    Strength 5.    trash 6.    Color HVI can do all these 6-test in one machine, and normal testing use separate testing machines to check each property. After check these 6 properties of cotton fiber, then can classify cotton to different grade, which is very important to its price. Most famous HVI is from USTER. HVI in our company Our company’s HVI model is XJ128. The fast, multipurpose XJ128 Rapid Fiber Tester blends optics, mechanism, electrics, air compression, and computer to evaluate cotton fiber performance. It may quickly assess cotton fiber performances in terms of length, strength, micronaire, color, and garbage, among other areas. Average length, upper half average length, strength, elongation, maximum b...

Colorfastness refers to the ability of a material or substance to retain its color when exposed to various environmental factors such as light, heat, water, and other chemicals. It is a measure of a material’s resistance to color fading, bleeding, or transfer to other materials. Different types of color fastness tests can be performed depending on the specific requirements of the material or product, including tests for light fastness, washing fastness, cracking fastness, and perspiration fastness. Understanding color fastness is important to ensure the longevity and durability of materials and to prevent color transfer or fading. Terms and Definitions Colorfastness: The resistance of color against outer influences is called colorfastness. It is distinguished between production colorfastness and usage colorfastness. Change of color: During colorfastness tests, the change of the color within the visible spectrum between treated and untreated sample is measured. The color change can be c...

Hot melt coating involves heating and melting organic compounds such as asphalt, paraffin, polyethylene, polypropylene, polyethylene terephthalate, and polyacrylic acid resins into a liquid, and then coating the substrate. The coating is carried out in an adiabatic state, and the finishing is measured with blade. The coated paper web is cooled by a cooler or a cold cylinder; The molten coating is formed on the substrate to form coating. And the coating is rolled and processed into finished products. Working principle First, heat the hot melt adhesive box and guide the paper or other substrate in the direction shown in Fig.1. When the hot melt adhesive box is heated to the set melting point temperature of the hot melt adhesive, the hot melt adhesive is melted. The melted adhesive is pressed into the coating die by the hydraulic system; The coating die is placed against the substrate, and the hot melt adhesive is sprayed onto it. At the same time, start the transmission motor to press th...