Myrobalan Extract

Myrobalan extract, derived from the fruits of Terminalia chebula, is renowned for producing a range of yellow and brown tones, offering versatility in creating both standalone and overdyed shades. It offers an effective and versatile solution for natural dyeing and mordanting across various fibers, including cotton, wool, and silk. Alfa Chemistry, as a supplier of premium Myrobalan extract, ensures optimal quality for sustainable, natural dye applications.

Product Details and Packaging

Botanical Origin and Composition of Myrobalan

Myrobalan is a deciduous tree native to diverse regions of Asia, including India, Nepal, China, and Burma. The tree flourishes primarily in the Himalayan foothills and is cultivated in tropical regions. Myrobalan fruits contain a high concentration of tannins, specifically hydrolyzable tannins such as gallic and ellagic acids, which are critical for dyeing and mordanting processes. This tannin-rich composition contributes to Myrobalan's strong affinity for cellulose fibers, making it particularly effective in dyeing cotton and wool fabrics.
Active Compounds:

• Gallic Acid - Provides stability and enhances mordanting effects.
• Ellagic Acid - Contributes to the light yellow base and enhances shade depth when used with metal mordants like alum and iron.

Dye Shades and Techniques

Yellow to Brown Hues: Using Myrobalan extract in different concentrations, artisans can achieve a spectrum of shades:

Overdyeing: Myrobalan's tannic properties enhance color depth when overdyed with other natural dyes.

WOF (Weight of Fiber) Recommendations:

• 2% WOF: Light yellow suitable for basic mordanting.
• 10% WOF: Medium yellow, optimal for distinct yellow shades.
• 13% WOF: Achieves darker, richer browns.

Myrobalan in Mordanting: Improving Dye Fixation on Cellulosic Fibers

As a natural tannin, Myrobalan extract is highly effective in pre-mordanting treatments, especially for cellulosic fibers like cotton and linen, which are traditionally more challenging to dye. The tannins in Myrobalan form strong bonds with cellulosic fibers, preparing them to better accept dye molecules and enhancing color fastness.
Mordanting Process:

• Pre-Mordanting Baths: Myrobalan extract is commonly used in pre-mordanting, creating a yellowish base that enhances subsequent dye uptake.
• Metal Mordants: Combining Myrobalan with alum or iron mordants enables the creation of darker shades. Alum mordants yield warm brown tones, while iron mordants facilitate gray to black hues, adding variety and depth to dyed textiles.

Industrial and Traditional Applications

Beyond textile dyeing, Myrobalan extract has multiple industrial and traditional applications due to its tannic properties:

• Tannery: Myrobalan is widely used in the tanning industry, primarily in India, for preparing leather. Its tannins contribute to the softness and color of the final product.
• Ink Preparation: Tannins in Myrobalan also play a role in ink manufacturing, providing a stable base and rich color.

Health and Safety Precautions for Handling Myrobalan Extract

Myrobalan extract is safe for use when handled properly, though it is essential to take safety measures when working with fine powders. Alfa Chemistry recommends the following guidelines to ensure safe handling:

• Storage: Store in a tightly sealed container in a cool, dry, and well-ventilated space. Avoid exposure to temperatures exceeding 24°C (75°F) to preserve the tannin integrity.
• Protective Equipment: Use protective gloves, safety goggles, and a dust mask to avoid direct contact and inhalation.
• Handling Precautions: Prevent ingestion and avoid direct inhalation of dust. Always wash hands after handling and ensure that workspace surfaces are clean and free from residual powder.

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