FIELD: copy machines, in particular, dry toners which are used together with magnetic and stage carrier for positive-charge development of electrostatic image on copies. SUBSTANCE: toner binder consists of 80-99 % of cyclic alkanoformaldehyde resin which is made from waste of caprolactam production. EFFECT: decreased cost, reliable technical characteristics. 1 tbl
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Authors
Dates
1997-12-27—Published
1995-06-05—Filed