Chemical colour-forming components; Additives or binders therefor

Full Title

Duplicating or marking methods; Sheet materials for use therein > using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components > Chemical colour-forming components; Additives or binders therefor

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS

Subclass:

PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING

Child Classifications

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• B41M 5/136 Organic colour formers, e.g. leuco dyes
• B41M 5/155 Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders