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Showing posts from February, 2023

Discuss the fibre characteristics requirements for ring and rotor spinning technologies.

  The Fibre Foundation: Ring vs. Rotor Spinning Discuss the fibre characteristics requirements for ring and rotor spinning technologies. questionsoftextileblog know textile The economic success of a spinning mill depends on matching raw material properties to the chosen technology. Ring and Rotor systems operate on fundamentally different mechanical principles, dictating vastly different fibre requirements for 100% efficiency and quality. The Fundamental Mechanic Ring Spinning Relies on roller control and tensile strength. Twist flows from outside-in. Rotor (Open-End) Spinning Relies on centrifugal force and friction. Twist flows from inside-out. Key Fibre Characteristic Requirements 1. Fineness (Micronaire) Fineness determines how many fibres fit into the yarn cross-section, which dictat...

What is crimp? How crimp in yarns influences different fabric properties?

  Crimp Effects on Fabric Properties Understanding Crimp: The Hidden "Wave" That Defines Fabric questionsoftextileblog know textile If you are a textile student, you have likely heard the term "crimp" tossed around in lectures about spinning and weaving. It might sound like a small technical detail, but crimp is actually one of the most critical factors that determine how a fabric feels, behaves, and performs. Whether you are designing a stretchy sportswear garment or a stiff piece of denim, understanding crimp is your secret weapon. Let’s break it down. Figure 1: The wavy path of the yarn as it travels over and under crossing threads is the "crimp." 1. What is Crimp? In simple terms, crimp is the waviness of a fiber or yarn. Imagine taking a piece of yarn and pulling it perfectly straight. Now, imagine that same yarn woven into a fabric. To go over and under the crossing threads (warp and weft), the yarn has to bend and ...

Explain the air flow principal and Sheffield type micrinaire instrument used to determine fibre fineness. How to interpret the results obtained from this test?

  Sheffield Type Micronaire Instrument Fiber Fineness: The Air Flow Principle & Sheffield Micronaire questionsoftextileblog know textile In the textile industry, the quality of yarn begins with the quality of the fiber. Among the various properties of cotton, fineness and maturity are paramount. This guide breaks down the science behind the widely used Air Flow method and how to read the results from a Sheffield Micronaire instrument. 1. The Air Flow Principle The determination of fiber fineness using air flow is based on a fundamental physical concept: Specific Surface Area. The Core Concept: When a specific weight of fiber is compressed into a specific volume, the resistance it offers to the flow of air is directly proportional to the specific surface area of the fibers. Fine Fibers: Have a high specific surface area. This creates mor...

How the bursting strength of fabric is measured using diaphragm bursting strength tester? Describe the factors that affect bursting strength of fabric.

  Measurement of Fabric Bursting Strength (Diaphragm Method) How the bursting strength of fabric is measured using diaphragm bursting strength tester?  questionsoftextileblog know textile  Mastering the Diaphragm Bursting Strength Test Welcome back to the blog! Today, we are diving into one of the most satisfying tests in the physical testing lab: Bursting Strength . Today, we break down exactly how we measure this using the Diaphragm Bursting Strength Tester . Why Do We Need This Test? Usually, when we test fabric strength (like denim), we pull it in one direction (Tensile Strength). But Knitted fabrics and non-wovens are different. They stretch everywhere! The Machine: How It Works Think of the Diaphragm Bursting Tester as a high-tech balloon popper. Figure 1: Cross-section of the Diaphragm Bursting mechanism. The Diaphragm: A thick rubber membrane sits underneath the fabric....

Describe in detail, factors that affect the textile properties of samples and results obtained from testing instruments

Textile Properties & Testing Factors The Science of Fabric: Understanding Factors That Influence Textile Properties questionsoftextileblog know textile In the world of textiles, quality is never accidental. Whether you are a manufacturer, a designer, or a textile student, understanding what determines the final characteristics of a fabric is crucial. This article dives into the key factors that influence textile properties and how testing instruments help us quantify them. Part 1: What Determines Textile Properties? The final "hand," look, and performance of a fabric are the cumulative results of several structural levels. Here are the four primary factors: 1. Fiber Type and Composition Everything starts at the microscopic level. The inherent chemistry of the fiber dictates baseline performance. Natural fibers (like cotton or wool) often provide comfort,...

How will you evaluate maturity of cotton fibre sample using caustic soda swelling methods?

 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...

What are the factors that affect fabric spreading?

 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...