Quebracho Extract

Quebracho extract is derived primarily from the heartwood of the Schinopsis balansae and Schinopsis lorentzii trees, native to the subtropical forests of South America, particularly in Argentina and Paraguay. The extract is highly valued for its tannin content and has long been used in various industrial applications, including leather tanning, construction, and natural dyeing processes. At Alfa Chemistry, we are dedicated to offering premium-quality Quebracho extract, sourced responsibly from sustainably managed forests, ensuring both quality and environmental preservation.

Product Details and Packaging

Chemical Composition and Properties

Quebracho extract is rich in tannins, particularly proanthocyanidins, which account for its effectiveness as a natural dye and mordant. The tannins in Quebracho serve to bind with cellulose fibers, making it an ideal mordant for dyeing natural textiles. The extract imparts a range of colors depending on the mordant used, including warm beige, peach, and deep brown hues. Notably, it exhibits excellent lightfastness, making it highly suitable for long-lasting coloration on textiles exposed to sunlight.

Dyeing Applications of Quebracho Extract

Chemistry provides Quebracho extract for use in natural dyeing, offering a versatile range of shades depending on the fiber and mordant combination. It is widely used in the textile industry for both artistic and commercial applications.

Dyeing Cellulose Fibers

Quebracho extract performs exceptionally well on cellulose fibers such as cotton, linen, and hemp. When used with different mordants, the extract yields a spectrum of colors:

• Alum: Produces warm sand or fawn shades, ideal for creating earthy tones.
• Copper: Generates darker, fawn-like hues, enriching the fiber with a subtle brownish tint.
• Iron: Results in deep bark-brown shades, suitable for achieving rich, darker finishes.

Dyeing Wool and Silk

While most effective on cellulose fibers, Quebracho extract also dyes protein-based fibers like wool and silk, producing warm peach or brown-rose tones. The extract's ability to penetrate these fibers ensures a lasting bond between the dye and the material, enhancing color retention and intensity.

Recommended Usage: For optimal results, use Quebracho extract at a concentration of 10% weight-of-fabric (WOF). The dye performs best in an acidic dye bath, often complemented by a mordant to improve color fastness and vibrancy.

It is important to note that our products are for research use only and are not for clinical use.