Mandatory specifications for Polyester Partially Oriented Yarn (POY) IS 17262:2019 as per Bureau of Indian Standard
The IS 17262:2019 defines the mandatory requirements for Polyester Partially Oriented Yarn (POY) imported into India. This standard, set by the Bureau of Indian Standards (BIS), ensures consistent quality and performance for various downstream applications.
These are mandatory for all imported POY since April 5, 2022. Non-compliance can lead to product detention and re-exportation. Overall, IS 17262:2019 plays a crucial role in maintaining quality standards for POY imports and contributes to the smooth functioning and quality output of India's downstream textile industry.
Key features
- Wide range of deniers:Covers POY yarns ranging from 40 to 3300 deniers, catering to diverse needs like texturizing, drawing, and weaving.
- Physical and chemical properties: Defines minimum and maximum acceptable levels for properties like moisture regain, ash content, melting point, breaking strength, elongation, degree of polymerization, and intrinsic viscosity, ensuring consistent performance.
- Denier and viscosity classification:Categorizes POY based on its denier and intrinsic viscosity, allowing informed selection for specific downstream processes.
- Crimp shrinkage: Specifies acceptable crimp shrinkage range, influencing yarn texture and fabric aesthetics.
- Tolerances and additional tests:Defines acceptable variances for key properties and outlines additional tests for special needs like heat setting behavior.
Mandatory specifications for POY IS 17262:2019
Physical and chemical properties
|
Characteristic |
Minimum |
Maximum |
Unit |
Test Method |
|
Linear Density (Denier) |
40 |
3300 |
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 |
40 |
% |
IS 14484 |
|
Degree of Polymerization (DP) |
750 |
850 |
- |
IS 14485 |
|
Intrinsic Viscosity (IV) |
0.7 |
1 |
dl/g |
IS 14495 |
|
Crimp Shrinkage (Dry) |
20 |
40 |
% |
IS 14496 |
Tolerances levels
|
Characteristic |
Tolerance |
Unit |
|
Linear Density (Denier) |
±10 |
% |
|
Moisture Regain |
±0.2 |
% |
|
Ash Content |
±0.10 |
% |
|
Melting Point |
±5 |
°C |
|
Breaking Strength (Dry) |
±10 |
% |
|
Elongation (Dry) |
±5 |
% |
|
Degree of Polymerization (DP) |
±50 |
- |
|
Intrinsic Viscosity (IV) |
±0.05 |
dl/g |
|
Crimp Shrinkage (Dry) |
±5 |
% |
Additional specifications
- The POY should be free from visible foreign matter and harmful substances.
- The POY should be classified based on its denier and intrinsic viscosity as per the standard.
- The POY should be packed and labelled as per IS 13977.
- Additional tests like gel content, crimp stability, and heat setting force may be specified for specific applications.
Impact and significance
- Quality assurance:Guarantees consistent quality and performance of imported POY for diverse downstream applications like texturizing, drawing, and weaving.
- Process efficiency: Ensures POY meets minimum processing requirements, leading to smoother and more efficient downstream operations.
- Product consistency: Contributes to consistent quality and performance in finished textile products.
- Fair trade:Levels the playing field for domestic and international POY suppliers by establishing a common quality benchmark.
- Consumer confidence:Ensures downstream products made with POY meet minimum safety and durability standards, enhancing consumer trust.