Textile Testing And Quality Control

Paper Code: 
TEX -601
Credits: 
02
Contact Hours: 
30.00
Max. Marks: 
100.00
Objective: 

1. To develop an understanding of methods to analyze textile fibre, yarns and fabrics for end-use performance. 2. To acquire knowledge and understanding of various properties of textiles and relate to end use fabric performance and product.

5.00
Unit I: 
Introduction to Textile Testing

 

  • Objectives and importance of textile testing.
  •  Precision and accuracy of testing methods-

-          precision and accuracy of testing methods,

-          atmospheric conditions for textile testing,

-          temperature and humidity,

-          measurements of humidity and moisture in textiles.

6.00
Unit II: 
Textiles and Moistures

 

  • Standards atmospheric test condition, various methods to measure relative humidity
  • Moisture content and moisture regain of textiles.
  • Definition of terms like diffusion, sorption, wicking evaporation, water resistance, air transfer, porosity and cover factor, electrostatic propensity.
  • Water absorption- methods of measuring amount of water absorbed – static immersion test wettability of fabrics- definition, methods used or testing wettability of fabrics, Sinking time test of fabrics.

 

7.00
Unit III: 
Fiber and Yarn Dimensions

 

  • Fiber fineness, Methods of measuring fiber finess
  • Yarn test- Linear Density- Direct & Indirect system, folded yarns, methods of measuring linear density of yarns from packages and skeins and from a fabric sample.
  • Yarn crimp – yarn twist- level of twist and twist factor methods of measuring twist, yarn eveness and methods of assessing eveness.

 

8.00
Unit IV: 
Testing and Evaluation of Fabric and Garment

 

  • Strength properties of Textile & apparel
  • Terminologies and definitions like force units,
  • Breaking strength and Tensile strength, Stress, specific stress, Tenacity, Elongation, Strain, Extension percentage, Gauge length, Elastic recovery, force and elongation curve
  • Factors affecting tensile testing, fabric characteristics affecting tensile properties, tensile testing machines and their working principles.
4.00
Unit V: 
Standardization

• Organizations for standardization (National & International) • Quality control of Textile Products BIS, ASTM, ISO, BS, AATCC

Essential Readings: 

 

1. Booth, J.E., Principles of Textile Testing, Newness Butter Worth, London.

2. John, H. Skinkle., Textile Testing, Brooklyn, New York.

References: 

 

1. Billie, J. Collier and Helen, H. Epps., Textile Testing and Analysis, Prentice Hall, New Jersey.

2. Grover and Hamby., Hand Book of Textile Testing and Quality Control, Wiles.

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