EP 0017823 A1 19801029 - Self-copying paper, particularly for composing printed forms arranged in stacked sheets and method of manufacturing it.
Title (en)
Self-copying paper, particularly for composing printed forms arranged in stacked sheets and method of manufacturing it.
Title (de)
Selbstkopierpapier, besonders für die Anfertigung mehrschichtiger Vordrucke und Verfahren zu seiner Herstellung.
Title (fr)
Papier auto-copiant, en particulier pour l'obtention de formulaires imprimés disposés en feuilles empilées et procédé pour sa fabrication.
Publication
Application
Priority
IT 2168179 A 19790409
Abstract (en)
A self-copying paper for composing printed forms and other prints arranged in multiple stacked sheets comprises, on the back side thereof, a thermoplastic matrix in which is dissolved a leuco toner and, on the front side, a uniform layer including a toner developing agent. The toner on the back side of one sheet is adapted to be transferred by a localized pressure, to the front side of the next underlying sheet, and is developed there by the action of the developing agent.
IPC 1-7
IPC 8 full level
B41M 5/124 (2006.01); B41M 5/132 (2006.01); B41M 5/155 (2006.01)
CPC (source: EP)
B41M 5/124 (2013.01); B41M 5/132 (2013.01); B41M 5/1555 (2013.01)
Citation (search report)
- FR 2302200 A1 19760924 - KORES HOLDING ZUG AG [CH]
- FR 2305206 A1 19761022 - SALOMON & FILS F [FR]
- US 3672935 A 19720627 - MILLER ROBERT E, et al
- US 2646367 A 19530721 - CHESTER DAVIS, et al
- GB 1147480 A 19690402 - NCR CO [US]
- BE 756601 A 19710324 - WIGGINS TEAPE RES DEV
- US 3684549 A 19720815 - SHANK JOSEPH L
Designated contracting state (EPC)
AT BE CH DE FR GB LU NL SE
DOCDB simple family (publication)
EP 0017823 A1 19801029; AU 5713680 A 19801016; BR 8001895 A 19801125; ES 490245 A0 19810216; ES 8102510 A1 19810216; IL 59739 A0 19800630; IT 1115167 B 19860203; IT 7921681 A0 19790409; PT 71041 A 19800401
DOCDB simple family (application)
EP 80101645 A 19800327; AU 5713680 A 19800408; BR 8001895 A 19800328; ES 490245 A 19800402; IL 5973980 A 19800331; IT 2168179 A 19790409; PT 7104180 A 19800331