Evaluate Cotton Fiber Maturity How to Evaluate Cotton Fiber Maturity Using Caustic Soda Swelling questionsoftextileblog know textile Category: Textile Testing & Quality Control The Caustic Soda Swelling method is a fundamental laboratory test used to determine the maturity of cotton fibers. Unlike simple length or strength tests, this method strictly evaluates the development of the fiber's cell wall structure. What is Maturity? Cotton maturity refers to the degree of cell wall thickening relative to the fiber's diameter. Mature fibers have thick cell walls and are excellent for dyeing and spinning. Immature fibers have thin walls, leading to neps (knots) and dyeing defects. The Principle When cotton fibers are treated with an 18% solution of Caustic Soda (Sodium Hydroxide - NaOH) , they swell significantly. Mature fibers: The thick cellulose wall swells enough to...

 Factors Affecting Fabric Spreading What are the factors that affect fabric spreading? questionsoftextileblog know textile Factors Affecting Fabric Spreading in Garment Production ​ Fabric spreading (also known as laying) is one of the most critical preparatory steps in the garment industry. It involves unwinding large rolls of fabric onto a cutting table to create a "lay" of multiple plies. ​If the spreading is poor, the cutting will be inaccurate, leading to rejected garments and wasted material. To ensure quality, textile professionals must understand the technical factors that influence this process. ​Here are the primary factors that affect fabric spreading quality and efficiency. ​1. Fabric Tension (The Most Critical Factor) ​Tension is the most significant variable in spreading. ​ The Rule: Fabric must be spread with zero tension . ​ The Risk: If fabric is stretched while spreading (common in knits or Lycra), it will eventually relax and shrink back to its o...