Dextrin by Sanstar Bio - Polymers is prepared by roasting starch in the presence of acid, which chemically changes the character and properties of starch. It is an intermediate between starch and sugars derived from starch. It goes into solution instantly and with a lesser quantity of water. The severity of the heat and acid treatment determines the degree of solubility which is the basis for classifying or grading it. Offers high strength films, wide range of water solubilities and greater adhesive strength as well as fluidity. This starch converted product uses large amounts of yellow dextrin in the preparation of liquid as well as dry adhesives and finds application in the manufacture of spiral, convolute tubes as well as carbon paper, abrasives, dry distemper and in machine labelling of tins, cartons, packages, envelopes, corrugated boxes etc. It is also used by crackers manufacturer due to its adhesive properties as well as explosive character, as a core binder in refractories, foundry operations and in paper tubes, paper cones, book-binding, carton sealing, cigarette pasting, match-head and match box making.
It is obtained from root called tapioca. Tapioca starch powder can be converted into various forms of modified starches to serve certain purpose for which native corn starch will not be of much use. Glass-O-Tex becomes sticky when it is mixed with water or certain chemicals. It stays sticky over a long period of time. Due to its high viscosity, it is used as a major raw material for making glue forming 80% of the raw materials. It is modified by physical and chemical means to achieve correct use of its properties for appropriate end-uses in paper, textile and food adhesives.
