Presented to sir Naveed mengal

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

7. Fabric testing
Thread density
1) Ends per inch (EPI )
2) Picks per inch (PPI)
Testing method standards
 ISO 7211.2
 GB/T 4668

8. Fabric testing
Weight of fabric
 it is generally expressed in grams/square meter or
(GSM).
Standard test method
ASTM D3776

9. Fabric testing
Fabric weight calculation.
GSM Formula:
Fabric roll weight:

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

12. Fabric Properties testing
Stiffness
 It is the tendency of fabric to keep standing without
any support.
Standard test method
ASTM D1388 - 08

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