METHOD OF NETTED PRINTED COPY WASHING OFF Russian patent published in 1997 - IPC

Abstract RU 2079527 C1

FIELD: polygraphy. SUBSTANCE: method involves treatment of copy with nonionogenic surface-active substances. Firstly, copy is treated with polyhydroxypropylene glycol alkyl ether of the general formula where n = 20-50; R - C1-C4-alkyl at amount 20-25 g/1 kg printed dye and then - with 38% an aqueous solution of block-copolymer of ethylene oxide and propylene oxide of the general formula where 2m = 15-30; n = 20-50 taken at amount 30-35 g/1 kg printed dye. EFFECT: improved method of copy washing off.

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RU 2 079 527 C1

Authors

Fetkulova E.B.

Gel'Fer Ts.M.

Shulepova O.I.

Vorozhtsov G.N.

Dates

1997-05-20—Published

1992-04-08—Filed