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Tackling Inventory Pain Points: How Bio-based Dyes Solve Denim Yellowing for Long-Term Value

At Intertextile Shanghai, Chloris demonstrated how Claessen Blue™ combines clean fading, verified fastness and drop-in compatibility to reduce denim yellowing across the value chain.

Denim material demonstrating the anti-yellowing performance of bio-based blue dye.

At Intertextile Shanghai, Chloris demonstrated how bio-based color addresses real business pain points through anti-yellowing innovation.

The culprit? Conventional indigo degrades into Isatin — yellow by nature. Claessen Blue™ changes that.

Its pyridone structure has strong intermolecular hydrogen bonding, which makes it more stable than indigo. Even degradation produces colorless byproducts. Clean fading, less yellowing.

Drop-in compatible. No equipment changes. Chlorine-free washing.

Third-party verified:

  • Light fastness: 4+ (industry: 2–3)
  • Ozone fastness: 4+ (industry: 2–3)

One solution across the chain: Retail | Warehouse | Consumer | Production — extended life, less waste, fewer returns.

Thanks to everyone who stopped by. Let’s reshape the supply chain together.

Start pure. Stay clear.