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Textile Testing with a High Volume Instrument (HVI)

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  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 breaking force, Micronaire, maturity index, reflectivity, yellow depth, color grade, garbage nu
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Top 9 Standards about Colorfastness in Textile

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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
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Hot Melt Coating: Boost Adhesion with Innovative Technology

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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
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All the information you require about dyeing machines

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  Garments are made from grey fabric, and then the garments are dyed in the required color and shade. Garment dyeing is the process of coloring ready-to-wear clothes after manufacturing them from grey fabric by cutting and stitching. Usually pants, sweaters, shirts and skirts are dyed after manufacturing is completed. Different types of dyeing machines are used in the textile industry to dye complete garments. Paragraph.  Working principles of different dyeing machines Dye bath prepare:  The first step is to prepare a dye bath by dissolving dyes and other auxiliary chemicals such as leveling agents, dispersants, and pH adjusters in water. Carefully control the concentration and composition of the dye bath to achieve the desired color and dyeing performance. Loading of textile materials:  The textile materials to be dyed, such as fabrics, yarns, or garments, are loaded into the dyeing chamber or compartment of the dyeing machine. According to the type of machine, materials can be loaded
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A Quick Overview of Drop Weight Impact Tester

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In the field of material testing, understanding a material’s impact resistance is critical for guaranteeing safety and performance in a variety of applications. The Drop Weight Impact Tester is a crucial instrument for both engineers and researchers, providing valuable insights into material toughness and durability. This gadget assesses how different materials behave to impacts by replicating real-world settings where abrupt shocks may occur, which guides design and manufacturing decisions. In this post, we will look at the fundamentals of drop weight impact testing, such as its operating principles, applications in various industries, and the importance of testing standards. Whether you are new to material testing or looking to enhance your knowledge, this overview will provide a solid foundation for understanding the importance of this vital equipment. What is Drop Weight Impact Tester The drop weight impact tester is a test machine used to test the impact resistance or impact abili
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Temperature in Weathering Test: Measurement & Calibration

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  The materials and products commonly used in our daily lives, such as textiles, plastics, leather, coatings, building materials, etc., will age over time due to comprehensive damage caused by factors such as light exposure, heat and cold, wind and rain, bacteria, etc. These factors work together to cause chemical and physical microscopic changes in materials, such as discoloration, reduced strength, structural damage, etc. This process is called weathering. The ability of a material to resist these damages is called weathering property. Why is Temperature in Weathering Test So Important? In the actual research and producing process, in order to evaluate the weathering property of a material, the current method is usually to conduct laboratory accelerated weathering tests, mainly simulating the three basic factors of light, temperature, and moisture. Among them, temperature is a key factor affecting the rate of photoaging: 1) An increase in ambient temperature will accelerate the rate
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Versatile Laboratory Presses: Essential for Rubber Production

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Laboratory presses play a vital role in the production process in the rubber industry. These presses are used for a variety of purposes including rubber vulcanization and testing. Understanding the function of a laboratory press is essential to ensure efficient production and maintain product quality. Working principle The working principle of a laboratory press can be divided into four parts. 1. Heating: Put the raw material (such as rubber) into the laboratory press, and then heat it to a certain temperature to soften and melt it. 2. Compression: The pressure mechanism of the laboratory press begins to work, compressing the softened and melted raw materials. 3. Vulcanization: At a certain time and temperature, the vulcanizing agent in the material begins to react chemically with the rubber and other materials, thereby completing the vulcanization process, that is, the cross-linking and vulcanization of the rubber. 4. Cooling: After the vulcanization process is completed, the vulcaniz
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