Testing speed and testing time will determine if the evenness measurements are repeatable. Generally, most staple yarns are tested at a speed of 400 m/min to provide a sample length of 400 meters. Roving is tested at 25–50 m/min, and…
The evenness of yarns is directly related to the quality of yarns, the appearance of the fabric, the various processes, and the stability of the end products. This guide will provide information on how to check the evenness of yarns…
To check the uniformity and consistency of yarn, sliver, or roving, an Evenness Tester helps to ensure quality. It also detects irregularities, including thin, thick, and rough parts. Sometimes fiber knots cause problems at different stages of the spinning process,…
Moisture permeability is one of the key performance indicators of textiles. With increasing emphasis on moisture and water resistance, textiles with superior moisture-blocking properties (i.e., lower moisture permeability) have become a focus in textile development and use, receiving growing attention…
With the development of the times, people's demands for clothing have gone beyond just comfort; they also require clothing to have certain functions. Moisture permeability is both an important factor affecting comfort and an indicator of functionality. The testing of…
Drafting ratio is the amount of the fiber strand being drawn out before the process of yarn formation. A suitable drafting ratio can help to achieve a uniform fiber distribution and stable yarn weight to enhance the uniformity of the…
With improvements in living standards and advancements in technology, functional textiles offering water, oil, and stain resistance have garnered increasing attention from consumers. The ability of textiles to resist surface wetting by various liquids—such as water, oil, alcohol, blood, and…
There are currently two main types of waterproof fabric designs. The first is laminated waterproof fabric, created by bonding ordinary fabric with a special adhesive through a lamination process to form a waterproof composite; this structure may consist of two…
Evenness is one of the critical quality parameters that is vital in yarns for uniformity of the mass along the length of the yarn. It directly affects the appearance of the fabrics, efficiency of weaving and knitting, dye uniformity, and…
The international standard ISO 6330:2021 "Textiles—Home washing and drying procedures for testing" (hereinafter referred to as the "new standard") was published and implemented in November 2021. This standard was jointly developed by ISO/TC 38/SC2 and CEN/TC 248 under the technical…
The uniformity of yarn is measured by the yarn evenness tester by determining the deviations in mass, thickness, neps, and other irregularities. It is also frequently utilized in research institutes, universities, textile laboratories, spinning mills, and quality control departments for…
A yarn evenness tester is a quality control machine that measures the differences and variation in mass, power unit length of yarn. The variation is measured and reported in terms of U%(mass deviation), CV%(coefficient of variation), and imperfection counts. The…