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A Guide To Twin Screw Extruders: Working, Testing & More

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  Have you ever wondered how researchers, universities, and textile laboratories process and test new materials with high accuracy? One of the most important tools used for this purpose is the  twin screw extruder , a machine that helps you study how polymers, fibers, and additives behave under heat and pressure. Whether you work in a research institution, teach material science, or manage quality control in a textile or plastics facility, understanding this equipment is essential for producing reliable results. A  twin screw extruder —also called a  screw extruder  or  double screw extruder —allows you to mix, melt, and analyze different materials with great precision. This is why it is widely used for polymer development, product testing, and laboratory-scale experiments. If you want consistent data, efficient processing, and accurate material behavior analysis, choosing the right extruder becomes a key part of your work. This article will cover everythin...

Twist Testing Method for Short-Fiber Single Yarns

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The number of turns within a unit length of yarn is called twist. Twist is expressed as twists per meter (t/m) or twists per 10 cm (t/10 cm). Twist is an important physical property of yarn. The physical and mechanical properties of yarn are determined by the properties of the constituent fibers and the yarn structure, among which the twisting action is the most important factor affecting yarn structure. Short fibers can form yarns with certain physical and mechanical properties precisely because of twisting. Twist is not only the fundamental condition for yarn formation, winding, and strength development, but is also closely related to yarn strength and elongation at break. Therefore, twist testing must accurately reflect the true inherent twist of the yarn while being simple, fast, and accurate to operate. Different twist testing methods apply to different yarns. Some yarns can be tested by several methods, but differences among methods may lead to varying results. At present, the ma...

Abrasion Tester – A Comprehensive Guide

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Every material we use in daily life—fabric, rubber, plastic, leather, flooring, and coatings—faces friction. This friction slowly removes surface layers, causing wear, fading, scratches, or even total material failure. To make sure products can survive real-world use, manufacturers rely on an  abrasion tester , a special machine designed to measure how strong a material is against rubbing, repeated contact, and surface damage. Understanding abrasion resistance is important for industries like textiles, automotive, packaging, footwear, construction, and electronics. A reliable  abrasion testing machine  helps brands check product durability before releasing it into the market. This ensures quality, reduces customer complaints, and builds long-term trust. In this comprehensive guide, we will explain what an abrasion tester is, the main types used in laboratories, how they work, key performance parameters, pricing, standards, and how to choose the right model for your needs....

Weaving and Development of Carbon Fiber Fabrics

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  Carbon fiber possesses excellent properties such as light weight, high strength, high modulus, corrosion resistance, low thermal expansion, fatigue resistance, and good biocompatibility. It not only retains the intrinsic characteristics of carbon materials but also combines the flexibility and processability of textile fibers, forming a brand-new material system together with its composites. Among these, two-dimensional and three-dimensional carbon fiber fabrics are indispensable components of carbon fiber composite materials. Composite materials reinforced with carbon fiber fabrics (CFRP) are regarded as advanced high-tech products and are widely used in sports equipment, construction reinforcement, transportation, aerospace, and other fields. Owing to their outstanding performance, carbon fibers and their fabrics have become essential materials for countries around the world. Weaving Technology of Carbon Fiber Plane Fabrics Common types of carbon fiber plane fabrics are mainly ...

Textile Sizing Machines: Working Principles, Testing, and Performance

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In textile manufacturing, every process—from spinning to finishing—shapes the final fabric quality. One vital yet often overlooked step is warp preparation, especially the sizing process. Before weaving, yarns must be strong, smooth, and flexible to handle the tension of the loom. Without proper sizing, they may break or lose shape. A textile sizing machine strengthens yarns by coating them with materials like starch, PVA, or CMC. This improves strength, reduces hairiness, and boosts weaving efficiency. Modern yarn sizing machines now include automatic controls, precise temperature regulation, and eco-friendly drying systems. At FYI Tester, we specialize in advanced sizing machines that ensure consistency, durability, and performance.  This article explores their principles, performance, standards, and cost—helping you choose the best solution for your textile operations. What Is a Sizing Machine? A sizing machine is specialized textile equipment designed to apply an adhesive coati...

Comparison of Ramie Degumming Processes

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  Ramie is a perennial herbaceous plant known for its strong, lustrous fibers with excellent moisture absorption and breathability. However, due to the presence of pectin, hemicellulose, and other gummy substances, raw ramie is stiff and difficult to spin. Degumming removes these impurities through chemical, biological, or physical means, allowing the fibers to separate, soften, and improve in spinnability and dyeability. Common degumming methods include chemical and biological processes. The chemical method offers complete and efficient degumming but causes pollution and may damage fibers, whereas the biological method is eco-friendly and produces high-quality fibers, though it requires longer time and higher cost. Degumming quality directly affects the softness, luster, and subsequent spinning performance of ramie fibers. This study compares biologically degummed and chemically degummed refined dry ramie fibers in terms of chemical composition, physical properties, and microstruc...

Keeping Colors True: The Science of Textile Color Fastness Testing

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Color fastness, also known as dye fastness, refers to the ability of dyed fabrics to maintain their original color when subjected to various external factors during use or processing. These factors include pressure, friction, washing, rain, exposure to sunlight, perspiration, ironing, and dry cleaning. The level of color fastness directly determines the fabric’s appearance stability and durability during use. The importance of color fastness is mainly reflected in the following three aspects: Impact on the quality of textiles: Color fastness is one of the key indicators for evaluating dyeing quality. Fabrics with poor color fastness tend to fade or discolor during use, which not only affects their aesthetic appearance but also lowers product quality, leading to consumer complaints and damage to brand reputation. Impact on staining of other materials: When dyed fabrics come into contact with other textiles or materials, poor color fastness may cause dyes to migrate or transfer, resultin...