These are similar in nature to the edible and pharmaceutical gelatins.

Technical gelatins have many and varied applications.
gelatin -matches

Matches
Gelatin binds together the chemicals that form the match head.

Coated adhesives
Gelatin is the binder between the paper and the abrasive particles in sandpaper.

Gelatin-NCR-paper

Micro-encapsulation
The best-known use of gelatin for micro-encapsulation is in NCR (‘no carbon required’) papers. A dye is micro-encapsulated in gelatin that forms a fine coating on a sheet of paper. With pressure exerted by handwriting or typing onto the top of the sheet, the microcapsules break onto the next sheet, forming a perfect copy of the first.

Spray drying and micro-encapsulation applications are numerous, and by using edible gelatins the process can be used in drugs, flavours and fragrances.