Cutch Extract

Cutch Extract, derived from the Acacia catechu tree, is a natural dye with a rich history, particularly in India where it has been used for centuries. Known for its deep reddish-brown tones, Cutch is both a dyestuff and a tanning agent, making it an essential ingredient in traditional and modern textile dyeing. The extract is obtained by steeping cutch wood in hot water, allowing the liquid to become thick and syrupy before it is cooled, pressed, dried, and ground into powder form. Alfa Chemistry specializes in providing high-quality Cutch Extract, recognized for its versatility and dyeing properties.

Product Details and Packaging

Chemical Composition and Dye Properties

Cutch Extract primarily contains tannins and catechins, which are responsible for its excellent dyeing capabilities. Tannins, in particular, allow the dye to bond to fibers without requiring a mordant, although the use of mordants such as alum or iron significantly enhances the color depth and fastness. The tannin content also makes Cutch useful as a tanning agent in leather production. When used with alum, the extract produces golden yellow to brown shades, while iron mordants shift the hue towards deeper chocolate tones.

The solubility of Cutch Extract in water makes it easy to incorporate into various dyeing processes. A concentration of 5-10% weight-of-fabric (WOF) is typically used for medium to dark shades, with higher percentages providing richer and more intense colors. Cutch's colorfast properties, including excellent light and washfastness, make it highly desirable for textile applications.

Application in Natural Dyeing

Cutch Extract is widely recognized for its ability to produce a spectrum of brown tones, ranging from warm cinnamon to rich chocolate, depending on the fiber and mordant used. The long dyeing process, which can last up to two hours, allows the dye to fully penetrate the fibers, creating a uniform and long-lasting color.

For optimal results, it is recommended to soak the Cutch overnight before using it in dye baths. The addition of 2% WOF dissolved soda ash or 10% hydrogen peroxide can enhance the red tones in the dye. Alfa Chemistry advises using iron in the final stages of dyeing to produce darker, chocolate-brown shades, especially when working with wool, silk, or cellulose fibers.Our premium-quality Cutch Extract ensures consistent results across different fiber types, including wool, cotton, and silk.

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