IS 17263: 2019 outlines the specifications for Polyester Staple Fibres (PSF), a type of polyester fibre produced from poly terephthalic acid (PTA) and monoethylene glycol (MEG) or from recycled PET bottle flakes. This standard, adopted by the Bureau of Indian Standards after approval by the Textile Division Council, covers all forms of PSF, including virgin fibres, dope-dyed fibres, cationic dyeable fibres, and various specialty fibres like spun lace, antimicrobial, nonwoven, flame retardant, siliconized, and microfibres.

However, it excludes fibres intended for use in cement matrices for construction purposes. The standard defines strict criteria for the physical and chemical properties of PSF, and fibres must pass confirmatory and microscopic tests as per IS 667. Virgin PSF must have zero isophthalic acid content when tested using Annex C of IS 16481. Additionally, the fibres must be free from major defects and comply with environmental standards. All tests must be conducted in a properly equipped laboratory according to the prescribed methods.

Tests

Required Tests for Polyester Staple Fibres

• Test for Shrinkage of single polyester staple fibre

• Test for crimp characteristics of PSF and fibre fill/nonwoven fibres.

• Test for measurement of percent silicone on fibre

• Moisture content test

• Phosphorus content test

• Antimony content in polyester

• The hollowness of hollow fibre

• Sinking time for spunlace fibre

• Colour strength of the dope dyed product

• Titanium dioxide in polymer

Here are the key benefits of getting ISI Mark certification:

• Government Quality Assurance: The ISI mark indicates that a product meets the quality standards established by the government, ensuring compliance and reliability.

• Mandatory Compliance: It is mandatory for POLYESTER STAPLE FIBRES to obtain the ISI Mark. Non-compliance can result in penalties, including material seizure and substantial fines.

• Enhanced Market Competitiveness: Achieving certification significantly enhances your product's chances of success in the competitive market.

• Consumer Trust: Consumers are more likely to purchase ISI-certified products, as they guarantee safety and quality. This certification helps build trust and confidence among buyers.

• Market Benchmarking: Partnering with a respected brand allows you to elevate industry standards and establish a benchmark for your product's market value.

PROCESS FOR BIS ISI MARK CERTIFICATION