Corn Starch CAS 9005-25-8

In the paper industry, starch has four main uses:

1. Glue on the beater to condense the fibrous tissue together before the thin paper is formed.
2. The barrel is glued, soaked in thin glue solution, and preformed into thin paper.
3. Calender gluing, glazing and repairing.
4. Surface gluing, as an optional step, for high-grade smooth paper gluing: in the production of wrinkles, waves. Starches and dextrins are also used to bind and glue boards when fiber gluing cartons.

n terms of glazing, starch has the same effect as corn starch. For example, the manufacture of smooth paper for periodicals. Here, starch powder is very beneficial for improving the coagulation strength of white face shake and dry soil. It can be said that starch has largely replaced casein in the aspect of paper glazing.

In the textile industry, starch is mainly used for sizing of cotton yarn, wool fabric and rayon fabric. Warp sizing is to dip the weft thread moving along the longitudinal direction of the textile machine in a hot pot filled with starch paste and come out of the bath. The sized weft thread is dried in a hot drum. The function of warp sizing is to tightly bond some loose fibers on the surface of the weft thread to enhance and maintain the wear resistance of the warp thread during weaving. High-count warp thread (that is, many single fibers are spun into one strand of yarn) Sizing is usually more difficult, because the gaps between the fibers are small, the size is not easy to penetrate, and finally a film is formed to firmly adhere to the yarn. Therefore, the strength and abrasion resistance of the yarn are enhanced.

In the food industry, many starches are used for baking special foods. Examples include Swiss and German style breads, crackers, matzo, etc. It is also used as a thickener for soups and gravies, and the starch is granulated for “pudding”, similar in effect to puddings usually made with tapioca starch. Pregelatinized starches have been used extensively in “quick cook” puddings.

As a forming agent for making modeling candy, for example, a kind of colloidal soft granules in the shape of dense beans, orange-shaped sugar pieces and droplet-shaped soft gums. As a thickening agent to increase the smoothness and stability of caramels and marshmallows. As a thickening agent for artificial jelly. As a powder mix with powdered sugar (marshmallow) to make pectin candy, chewing gum, etc.

In the process of producing adhesives, starch is usually chemically and physically treated to make modified starch to change its viscosity and increase its adhesiveness. Although some starches used as adhesives are mostly low-viscosity starches and oxidized starches, they are all used in the form of dextrins. Dextrin is made by heating starch with an acid catalyst. In general, film dextrins made from potato starches from root and tuber plants are more flexible and crack-resistant than corn starch dextrins. Starch dextrins have many uses, and according to their characteristics, they can be made into things that people like. Example: sandpaper. Adhesives in abrasive cloth, trim and carpet sizing, all of which require highly adhesive dextrins to form a moldable, aftereffect film. Starch dextrin films have also attracted attention in terms of exhibiting rewetability after gluing. These characteristics are desirable as sizing agents for gluing stamps, labels, covers, and tapes.