Adhesives & Binders

White Dextrin

WHITE DEXTRIN

Dextrin are prepared by heat treatment in presence of chemicals to suitably modify characteristics and properties of starch. They find application in dyes, adhesives, foundries, fire-crackers, oil drilling and many other industries.

Unlike starch dextrin are soluble in water. The severity of the treatment determines the degree of solubility, which is the basis of classifying or grading dextrin. Finished dextrin are very fine powder varying in color from pure white to yellow to dark brown.

Specification:

Description White Dextrin
Appearance White / Cream White
Moisture soluble 10 to 12
pH 2.5 to 3.0
Acidity for 5gms using NaOH 1.00ml
Mesh size-pass through 85 mesh 99.80
Soluble 50 to 60

Applications:
It is widely used in the manufacture of:

  • Spiral convolute tubes.
  • Carbon-paper manufacturing, abrasive and in dry distemper.
  • Machine labeling of tins /cartoon packages envelop corrugated boxes.
  • Also used by crackers manufacture due to adhesives properties & also explosive

Character

  • In Paper tubes and paper cones.
  • In book binding cartoon sealing cigarettes pasting match head and matchbox making.
  • As core binder in Refractory and foundry operations.

The advantage of dextrin in the dye stuff industries are so well recognized that good many large scale manufactures have taken to using highly soluble dextrin as diluents to standardized the dyes with respect to the range of color. Dextrin washes out quickly and easily and do not react with chemicals used in the process.