Mandatory specifications for Polyester Continuous Filament Fully Drawn Yarn (FDY) IS 17261:2019 as per Bureau of Indian Standards
The IS 17261:2019 is a crucial Indian standard mandatory for Polyester Continuous Filament Fully Drawn Yarn (FDY). Published by the Bureau of Indian Standards (BIS) in 2019, it ensures all imported FDY meets specific quality parameters.
Compliance is mandatory for all imported FDY since April 5, 2022. Non-compliance can lead to product detention and re-exportation. Overall, IS 17261:2019 plays a vital role in maintaining quality standards for FDY imports and contributes to the healthy development of the Indian textile sector.
Key features
- Wide range of deniers:This covers FDY yarns with deniers ranging from 40 to 400, catering to diverse textile applications.
- Physical & chemical properties:Specifies minimum and maximum allowable ranges for crucial parameters like moisture regain, ash content, melting point, breaking strength, and elongation.
- Lustre classification:Categorizes FDY based on its lustre (full dull, semi-dull, bright, super bright), enabling informed selection for desired aesthetics.
- Optional oil content:Allows flexibility for applications requiring specific oil finishes on the yarn, determined by buyer-seller agreement.
- Tolerances and additional tests:Defines acceptable variances for key properties and outlines additional tests for special application needs like flamer retardancy.
Mandatory specifications for FDY as per IS 17263:2019
Physical and chemical properties
|
Characteristic |
Minimum |
Maximum |
Unit |
Test Method |
|
Linear Density (Denier) |
40 |
400 |
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 |
|
Lustre |
Full Dull, Semi-Dull, Bright, Super Bright |
- |
Annex G |
|
|
Oil Content (Optional) |
As agreed between buyer & seller |
% |
IS 14494 |
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 |
% |
Additional specifications
- The FDY should be free from visible foreign matter and harmful substances.
- The FDY should be classified based on its denier and lustre as per the standard.
- The FDY should be packed and labelled as per IS 13977.
- Additional tests may be specified for specific applications (e.g., anti-static properties, flame retardancy).
Impact and significance
The importance of these standards for Indian textile industry are:
Quality assurance: Guarantees consistent quality and performance of imported FDY used in Indian textile production.
Consumer protection: Safeguards consumers by ensuring yarns meet minimum safety and durability standards.
Fair trade: It levels the playing field for domestic and international FDY suppliers by establishing a common quality benchmark.
Boosting industry: Promotes growth and innovation in the Indian textile industry by ensuring access to high-quality raw materials.