Polyester Continuous Filament Fully Drawn Yarn (FDY) is a polyester yarn produced using a continuous filament spinning process. The process involves melting polyester chips and extruding them through a spinneret to form continuous filaments. These filaments are then stretched to align the polymer chains and enhance the yarn’s strength. The resulting yarn is called Fully Drawn Yarn (FDY). Polyester FDY is widely used in various end products, such as textiles, carpets, and industrial fabrics, due to its exceptional strength, durability, and resistance to abrasion and chemicals. Read on to discover how to apply for BIS Certification for Polyester Continuous Filament Fully Drawn Yarn.
An Outline of the Indian Standard Called IS 17261:2022
The IS 17261:2022 covers polyester continuous filament fully drawn yarns. This Indian Standard was adopted by the BIS after the draft was authenticated by the Textile Division Council and approved by the Man-Made Fibres, Cotton, and Their Products Sectional Committee. It specifies the norms for all types of virgin polyester fully drawn yarns (FDY) for different end uses.
Note: These guidelines constitute the legal structure of the BIS Certification for Polyester Continuous Filament Fully Drawn Yarn.
Based on Cross Section
- Profiled Oval Ribbon Like
- Trilobal
- Triangular
- Solid
- Circular
- Cross-Sectional Area
- Angular Lobal Serrated
- Hollow
Based on Lustre (as cited in this Standard):
- Optically White
- Super Bright (SBR)
- Semi Dull (SD)
- Bright (BRT)
Based on Dyed Method (as cited in this Standard)
- Disperse Dyeable
- Cationic Dyeable (CD)
- Dope Dyed (DD)
To comply with the standard, the FDY must satisfy the construction and performance requirements. Additionally, the polyester FDY may fulfill the ecological specifications outlined in the standard. The yarn should not have significant defects.
Lustre determines whether fully drawn yarn (FDY) is classified as full dull, semi-dull, bright, or super bright. Annex G of the standard defines the testing method that must be used to ensure that the FDY meets the requirements specified in the standard.
Tests to Apply For BIS Certification for Polyester Continuous Filament Fully Drawn Yarn
The following test shall be carried out for polyester continuous filament fully drawn yarn.
- Phosphorus Content
- Moisture Content
- Entanglements in Filament Yarn
- Antimony Content in Polyester
- Titanium Dioxide in Polymer
Packing and Labelling Norms to Qualify for BIS registration
IS 17261:2022 outlines the guidelines for packing and marking the polyester FDY. The maximum weight of yarn per bobbin/cheese must not exceed 14 kg, and the information specified in the standard must be labelled on each carton of FDY.
If the product adheres to the standard’s requirements, it can be certified under the provisions of the Bureau of Indian Standards Act, 2016 and the Rules and Regulations framed thereunder.
The product(s) can also be marked with the Standard Mark (ISI Mark). To use a standard mark (ISI Mark), the manufacturer must obtain a BIS license from the Bureau of Indian Standards.
The BIS evaluates the manufacturing infrastructure, quality control, testing capabilities, and production process before granting a license.
Documents Required To Apply For BIS Certification for Polyester Continuous Filament Fully Drawn Yarn
To obtain BIS certification for Polyester Continuous Filament Fully Drawn Yarn, manufacturers must submit the following documents:
- BIS license application form
- Test reports from a BIS-known lab indicating compliance with IS 17261:2022
- Manufacturing process flow chart and related documents
- Quality control plan & related documents
- List of manufacturing machinery & equipment with calibration certificates
- Details of the manufacturing unit, including the factory layout, infrastructure, & utilities
- Details of personnel liable for quality control & testing
- Copy of the ISO 9001 certificate or equivalent certificate
- Undertaking from the manufacturer to comply with the norms of the Bureau of Indian Standards Act, 2016[1], and the Rules and Regulations framed thereunder.
It should be noted that the BIS may require additional dossiers or information during the evaluation process.
How to Secure BIS Certification for Polyester Continuous Filament Fully Drawn Yarn?
To obtain BIS certification for Polyester Continuous Filament Fully Drawn Yarn, the manufacturer must follow the below steps:
- Submit an application for a BIS license to the Bureau of Indian Standards.
- Prepare the manufacturing infrastructure, quality control, testing capabilities, and production process as per the requirements specified in IS 17261:2022.
- The BIS will conduct a preliminary vetting of the manufacturing premise.
- After the preliminary vetting, the BIS will render a list of observations and non-conformities to be addressed by the applicant.
- Once the manufacturer rectifies the non-conformities, they can request a final vetting from the BIS.
- The BIS will perform the final inspection and check if the applicant meets all the norms set out in IS 17261:2022.
- If the manufacturer fulfills all norms, the BIS will accord a license to use the Standard Mark (ISI Mark) on their products.
It is important to note that adherence to IS 17261:2022 is vital for securing BIS certification for Polyester Continuous Filament Fully Drawn Yarn.
Conclusion
The Bureau of Indian Standards (BIS) follows a generalized process for according to a license. The process involves evaluating the manufacturer’s infrastructure, quality control, testing capabilities, and production process to ensure that they meet the standards outlined in the Bureau of Indian Standards Act, 2016, and the Rules and norms cited thereunder. If the manufacturer meets these requirements, they can secure a BIS license to use the SI Mark on their products. This mark indicates that the product conforms to the relevant Indian Standards and is of good quality.
Read Our Article: How To Apply For BIS Certification In India?
