Guitarantul

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The dyes used must be suitable for the fabric material and provide good fiber penetration to ensure wash fastness. The dye must be chemically resistant and not react with detergents used in washing, so as not to destroy the bond between the dye and the fabric. Finally, after dyeing the fabric, the dye must be properly set to prevent it from washing away during washing. This is achieved by using special chemicals (fixatives) that help fix the dye to the fabric.

What is certain is that no high-quality dye will color the water when soaking fabric, clothing, or other products.

One example of a natural polymer that is ethanol soluble and water insoluble is cellulose acetate. Cellulose acetate is derived from cellulose, a natural polymer found in plants. Through chemical modification, hydroxyl groups in the cellulose molecule are replaced with acetate groups. This alteration makes cellulose acetate soluble in organic solvents like ethanol but insoluble in water.