FYI Tester Instrument

  The results of the melt spinning process reflect the control of all of the processing parameters, ranging from polymer melting to fiber winding. The fiber diameter, mechanical property of the fiber, production efficiency, and product quality can be influenced by these small changes in temperature/pressure, cooling, or draw ratio. These variables, whether in the lab or production, enable you to produce consistent, high-performance fibres and minimize waste and downtime. This guide will teach you about the most important process parameters affecting melt spinning, how to optimize fiber diameter, frequently occurring problems in the melt spinning machines and their solutions, how to optimize production efficiency, and key quality control aspects of polymer melt spinning. 8 Key Process Parameters Affecting Melt Spinning Performance 1. Polymer Melt Temperature The viscosity of the polymer during the extrusion is affected by the melt temperature. Low temperatures make it easier to mel...

  For anyone involved in fibre research, fibre engineering, fibre quality control, or fibre polymer processing, it is crucial to understand the key elements of a melt spinning machine to obtain uniform fibre quality and maximise production efficiency. Although synthetics are dominating the textile industry, recent developments in the melt spinning process have greatly enhanced the productivity, energy efficiency, and performance of the process. In the laboratory, it influences the size and strength of the fiber, uniformity, and quality of the product in each experiment; in a new polymer product, it determines fiber diameter, tensile strength, uniformity, and product quality; and in the industry, it directly impacts fiber diameter, the strength of fiber, the uniformity of fiber, and product quality in a fiber production line. This article will discuss important design considerations and operating systems associated with polymer melt spinning, such as spinnerets, extruders, temperatu...

  Textiles are subject to numerous mechanical tests, such as those for tearing strength, bursting strength, seam strength, peel strength, and breaking strength. Among these, breaking strength—a key indicator—is defined as the maximum force recorded when a fabric ruptures during tensile testing. A higher breaking strength value indicates greater resistance to rupture, and vice versa. Currently, the two primary domestic methods for testing the breaking strength of woven fabrics are GB/T 3923.1—2013 , *Textiles—Tensile properties of fabrics—Part 1: Determination of maximum force and elongation at maximum force using the strip method*, and GB/T 3923.2—2013, *Textiles—Tensile properties of fabrics—Part 2: Determination of maximum force using the grab method* [2]. These two methods differ significantly in aspects ranging from specimen preparation to the configuration of testing parameters. This paper examines the differences between the two methods, focusing specifically on specimen prep...

ISO 4913 is an international standard method for determining the span length and uniformity index of raw and semi-processed cotton fibers. Based on optical scanning technology, this standard obtains continuous information on fiber length distribution through non-destructive measurement of processed cotton fiber bundles, thereby assessing the spinnability and processing stability of cotton fibers. Cotton fiber length is one of the important fundamental indicators determining yarn strength, evenness, and breakage rate, while the concentration of length distribution further affects the drafting stability and yarn structure consistency during spinning. Therefore, this standard is not only a testing method but also a key component of the textile raw material quality evaluation system. In actual testing, ISO 4913 emphasizes the measurement of “fiber group distribution characteristics” rather than the ideal length of a single fiber. This distinguishes it from traditional manual measurement me...

Manufacturers are turning to specialized spinning technologies to use fibers with specific properties in various industries, including textiles, medical materials, aerospace, and advanced composites, as the demand for such fibers grows. One of the most significant technologies of these is wet spinning, which is used in the production of fibres that are not melt spun due to their chemical and thermal properties. If you are employed by a research laboratory, university laboratory, textile manufacturing plant, or a quality control unit, knowledge about the working of a wet spinning machine could help you to develop the fibers, increase production efficiency, and enhance the quality of the product.  In this article, you will learn about what wet spinning is, how the wet spinning machine works, the major components of the wet spinning machine, the complete wet spinning process, and various types of wet spinning machine systems used in modern fiber production. What Is a Wet Spinning Mach...

The Micronaire value reflects the fineness and maturity of cotton fibers; as a critical intrinsic quality indicator, it is closely linked to the processing and utilization of cotton fibers. In 1972, the International Organization for Standardization (ISO) officially published the test method for Micronaire value: ISO 2403:1972, *Textiles — Cotton fibres — Determination of Micronaire value*. ISO 2403 underwent two subsequent revisions in 2014 and 2021. The latest revised edition, ISO 2403:2021, *Textiles — Cotton fibres — Determination of Micronaire value*, was published on August 27, 2021, superseding ISO 2403:2014. In international trade, given that the Micronaire value serves as a key criterion for assessing cotton quality, the accuracy and consistency of its determination are of paramount importance. Consequently, staying abreast of changes to ISO standards is of significant importance for aligning with international practices and eliminating technical barriers in international tra...