As dextrins do not easily react with chemicals, they are specially suitable for application in the textile field. In textiles printing, they are used as thickeners. Free of grit and other impurities, which usually accompany lower grades of starch, they ensure that the copper rolls (used in printing) do not suffer from abrasion. In sizing, they are used with starch for increased adhesiveness. In finishing, they give desired feel and handle to the fabric.
Yellow dextrin is manufactured by partially hydrolyzing Starch, using the dry roasting method in the presence of a catalyst: The dextrinisation chemically reduces the starch molecules into smaller components. Yellow dextrin has low viscosity and is very sticky and hygroscopic in nature. Used in the foundry as a binder for cores. Yellow dextrin helps in increasing dry strength at the same time being completely soluble in water. This product also finds its application as a binder for mould and core washes. Its binding abilities’ make it an essential ingredient in various other applications, such as Adhesives, Gums, Pastes Pyrotechnics.