PRINTING POWDERS of English company RUSSELL~WEBB LTD

The powders are used to mechanically separate just printed sheets in a stockpile and to deliver enough air for them, the aim of which is to dry ink or varnish.

• STANDARD POWDERS of "R" and "S" TYPES

Produced on the grounds of edible species of potato starch and little amounts of additives, of which none is harmful to human health. Awarded PZH certificate. Occur in the form of white fine powder of the particles up to 50 µm. They do not solve in water in room temperature and make colloidal solution in water of the temperature of 90 centigrade. Powders of graininess 15 and 25 µm are used for printing on paper, while 50 µm powder is used for printing on carton.

Available graininess:	1.5 R 2.5 S 5.0 R	- 15 µm - 25 µm - 50 µm
Unit package:	3 or 4 kg - plastic canister

• SOLUBLE POWDERS OF "V" TYPE

Produced on the grounds of pure sugar extract and a small percentage of additives, of which none is harmful to human health. Awarded PZH certificate. Fully solvable in water in room temperature therefore they are perfect for washable printing; the powder used for first coating is washed by second coating etc. They occur in the form of white, fine powder of the particles to 40 µm. In temperature above 165 centigrade they convert into caramel.
The usage of washable powders limits the layer of powder on gum dressing and the may be used before varnishing or laminating. They should not be used along with IR radiation emitters.

Available graininess:	2.0 V 4.0 V	- 20 µm - 40 µm
Unit package:	3 or 4 kg - plastic canister