Cutch Extract (Cathechu)

$8.90

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Cutch (Acacia catechu) is a classic natural dye made from the heartwood of the cutch tree, valued for centuries across India and Southeast Asia. Rich in vegetable tannins (about 40%), cutch has been used not only for textile dyeing but also historically in medicine and tanning.

Did you know? Cutch is mentioned in Indian Ayurvedic texts and has been traded for centuries as both a dye and an astringent. In natural dyeing, it is celebrated for its warm reddish-browns, excellent light- and wash-fastness, and versatility on both cellulose and protein fibers.

Active dye compounds: Catechin, catechu-tannic acid, condensed tannins
CI Natural Brown 8

Shading Tips

Alum → warm, brighter reddish-browns
Iron (post-mordant) → grey-browns
Copper → olive-browns
Overdye with indigo → deep teals, smoky browns, or near-blacks
Layered applications → rich earthy gradations; dye bath exhausts yield lighter shades

As mordant: 10% WOF

As dye: 20–30% WOF for medium browns on cotton; adjust for lighter or deeper tones

Preparation:
– To release catechu-tannic acid: soak in cold water overnight
– To extract catechin (browns): dissolve powder in hot water, make paste, dilute to 1:20 liquor ratio
– Heat for 90 minutes at 80–90 °C with stirring for even results

Fiber types: Excellent for cotton (high tannin affinity), also works well on wool and silk

Reusability: Dye baths can be reused for lighter shades

Other uses: Sometimes used in soap making; traditionally known as an herbal astringent (not sold for medicinal purposes)

100% natural extract from Acacia catechu.
For dyeing and craft use only — not intended as food, cosmetic, or medicinal product.
Wear gloves when handling; avoid inhaling dust.
Store in a cool, dry place, sealed to preserve freshness.
Keep out of reach of children and pets.