LURI Supima

Fabric Quality Lab Reports

LURI fabrics are independently lab-tested to ensure they stay soft, keep their shape and hold color beautifully across many wears and washes.

Our Testing Partners

SITRA (The South India Textile Research Association), a NABL-accredited textile laboratory, tests LURI fabrics for colour fastness, spirality and shrinkage.
SPR Consumer Products Services, Tiruppur, tests our production lots for dimensional stability, spirality, colour fastness and GSM (fabric weight).

What We Test For

Colour fastness

Rubbing (dry & wet): Fabrics achieve 4–5 grade (on a scale where 5 is best), meaning minimal to no visible colour transfer on contact.
Washing: Fabrics maintain shade at 4–5 grade with very low staining on other fibres, ensuring colours stay rich after repeated washes.
Light, perspiration & water: Rated 4–5 for change in colour and staining, so garments resist fading from sweat, water and everyday exposur

Shrinkage & spirality (twisting)

ISO 6330 wash tests show length and width shrinkage well within the acceptable textile tolerance band, so garments retain size and fit after washing.
Spirality values are close to zero after wash, meaning the garment does not twist or torque around the body, even in interlock knits

Fabric weight (GSM)

Tested GSM around 260 g/m² for our knit fabric indicates a dense, premium-weight fabric that feels substantial while remaining breathable.

Key Lab Findings (Plain Language)

Stays true to shade: High grades (4–5) in colour fastness to washing, rubbing, light, perspiration and water mean your garment keeps its original colour far longer than conventional tees.
Holds shape after wash: Controlled shrinkage and negligible spirality ensure necklines, hems and side seams remain straight without twisting or warping.
Feels premium on skin: Heavier GSM with soft-hand finish gives a structured yet comfortable drape that does not feel thin or see-through.

Test Methods & Standards Highlight

Tests performed under ISO / IS standards such as:
- ISO 105 X12: Colour fastness to rubbing.
- ISO 105 C10 / C06: Colour fastness to domestic washing.
- ISO 105 B02, E01, E04: Colour fastness to light, water and perspiration.
- ISO 6330 & ISO 16322-2: Dimensional stability and spirality after washing.
- ISO 3801: Fabric weight (GSM).

- ISO 3801: Fabric weight (GSM).

You can reference these results on the page as: “Tested and certified by SITRA (Report Nos. N2506284 & K2502416) and SPR Consumer Products Services (Report No. SPRTR25-262019) for colour fastness, shrinkage, spirality and GSM.”