Coefficient of Thermal Expansion and their Importance.pptx
Fabric Testing and quality control
1.
2. Topic:
Fabric Testing and quality
control
Presented by :
Made by : Lutuf Ullah Jatoi
16TE55
Masood Ali 16TE45
Imtiaz Ali 16TE51
Raheel Ahmed 16te25
Shafiq ur rehman 16TE28
Department Of Textile
Engineering
3. Introduction
Textile Testing and Quality control
Testing is the process to determine the properties and faults
of machine and material during test of textiles.
Quality is the particular standard of product which satisfies
the customers need.
Quality control is the process of controlling product
properties and maintaining the given customer demands.
4. Objectives
Testing objectives Quality control objectives
Research
Selection of raw material
Process control
Product control
Process development
Product development
Specification test
To manufacture the required
quality product
To fulfill the customer’s demand
To reduce the cost of production
Reduce wastage
To make more profit at minimum
cost
5. Fabric testing
Fabric Tests
Fabric thickness
Thread density
Weight of fabric (GSM)
Fabric Properties.
Air permeability
Stiffness
Abrasion
Pilling
Water absorbency and repellency
Crease recovery of fabric.
Tensile strength
6. Fabric testing
Fabric thickness
Thickness is the distance between upper and
lower surface of fabric.
Test Conditions:
No crease in fabric
No stretching
Sampling from 10 different places
of fabric
Calculating average
Test Method Standard
ASTM D1777
Digital thickness meter
10. Air permeability
Air permeability is the rate of air flow through the fabric
when there is a different air pressure on either surface of
the fabric.
It provides a measure of fabric porosity and relates directly
to fabric thickness and density.
Fabric Properties testing
Standard test method
ASTM D737 - 18
11. Fabric Properties testing
Factors affecting air permeability:
Porosity
Fabric thickness
Yarn linear density or Fabric count
Yarn twist
Fabric construction
13. Fabric Properties testing
Abrasion
It is one aspect of wear of fibers, yarn on surface of fabric
due to the rubbing contact with an other material.
Abrasion resistance
It is the ability of fabric to resist surface wear caused by flat
rubbing contact with an other material.
Standard test method
ASTM D4966
14. Fabric Properties testing
Pilling
It is the fabric surface fault due to the little pills of
entangled fibers clinging to cloth surface.
REASONS:
Rubbing action on loose fibers
present on surface of fabric
Higher breaking strength and lower
bending stiffness
Low twist factor, higher herriness,
loose fabric structure
Standard test method
ASTM D3512
15. Fabric Properties testing
Water absorbency
It is the ability of textile material to absorb and hold water in its
structure.
Time taken in absorbing water.
Factors:
Texture and porosity of fabric
Fabric density
Degree of twist in yarn
Raw material
Standard test method
AATCC TS - 018
AATCC 79
16. Fabric Properties testing
Water repellency
A fabric said to be Water repellent when it repels water and
does not let it to penetrate in its structure.
Standard test method
AATCC 22
17. Fabric Properties testing
Crease recovery of fabric
It is the ability of fabric to recover from the imposed
deformation.
Standard test method
BSEN 22313
18. Fabric Properties testing
Tensile strength
It is the ability of fabric to withstand in a pulling force.
Standard test method
ISO 9073. 3/4