Mandatory compliance of Polyester Staple Fiber (PSF) IS 17263:2019 as per Bureau of Indian Standards
The IS 17263:2019 is an Indian Standard that specifies the requirements for polyester staple fibre (PSF). Published by the Bureau of Indian Standards (BIS) in 2019 it has been mandatory for all imported PSF since April 5, 2022.
The standard covers a wide range of properties, including
- Physical properties such as fiber length, fineness, moisture regain, ash content, melting point, breaking strength, and elongation
- Tolerances for these properties
- Packing and labeling requirements
The purpose of the standard is to ensure that PSF used in India is of good quality and meets the needs of the Indian textile industry. Compliance with the standard is mandatory for all imported PSF and is also recommended for domestically produced PSF.
It may be noted that IS 17263:2019 standard applies to all types of PSF, including regular, hollow, and conjugate fibers. The standard classifies PSF into different grades based on its denier and length.
- The standard specifies the test methods that must be used to determine the properties of PSF.
- The standard also includes requirements for packing and labelling of PSF.
Mandatory specifications for PSF as per IS 17263:2019
Physical and Chemical Properties
|
Characteristic |
Minimum |
Maximum |
Unit |
Test Method |
|
Fiber Length (Average) |
28 |
35 |
mm |
IS 14491 |
|
Fiber Length (Maximum) |
45 |
55 |
mm |
IS 14491 |
|
Fiber Fineness (Denier) |
1 |
8 |
den |
IS 14492 |
|
Moisture Regain |
0.4 |
1 |
% |
IS 14482 |
|
Ash Content |
0.1 |
0.3 |
% |
IS 14483 |
|
Melting Point |
250 |
260 |
°C |
IS 14493 |
|
Breaking Strength (Dry) |
3 |
5 |
cN/tex |
IS 14484 |
|
Elongation (Dry) |
20 |
35 |
% |
IS 14484 |
Tolerances Levels
|
Characteristic |
Tolerance |
Unit |
|
Fibber Length (Average) |
±5 |
mm |
|
Fiber Length (Maximum) |
±10 |
mm |
|
Fiber Fineness (Denier) |
±10 |
% |
|
Moisture Regain |
±0.2 |
% |
|
Ash Content |
±0.10 |
% |
|
Melting Point |
±5 |
°C |
|
Breaking Strength (Dry) |
±10 |
% |
|
Elongation (Dry) |
±5 |
% |
Additional Specifications
- The PSF should be free from visible foreign matter and harmful substances.
- The PSF should be classified based on its denier and length as per the standard.
- The PSF should be packed and labelled as per IS 13977.