EP 0695236 A1 19960207 - PRESSURE-SENSITIVE SELF-COPYING PAPER WITH IMPROVED OIL BARRIER
Title (en)
PRESSURE-SENSITIVE SELF-COPYING PAPER WITH IMPROVED OIL BARRIER
Title (de)
DRUCKEMPFINDLICHES DURCHSCHREIBEPAPIER MIT VERBESSERTER ÖLSPERRE
Title (fr)
PAPIER AUTOCOPIANT SENSIBLE A LA PRESSION A BARRIERE DE RETENUE D'HUILE AMELIOREE
Publication
Application
Priority
- DE 4312854 A 19930421
- EP 9401186 W 19940416
Abstract (en)
[origin: WO9423952A1] A layer containing microcapsules with leuco dyes dissolved in kernel oil is placed on the lower face of pressure-sensitive recording paper. In order to prevent the kernel oil from diffusing through the carrier paper, the carrier paper contains an oil barrier with an oil adsorption value lower than 10 g/m<2>, measured using the Cobb-Unger method, and the hot water extract has a pH value from 7.5 to 9.5. The oil barrier consists of an impregnation worked into the mass of the carrier paper or an oil-repellant surface preparation of film-forming hydrocolloids, plastic dispersions, pigments or mixtures thereof applied on one or both sides of the paper.
IPC 1-7
IPC 8 full level
B41M 5/124 (2006.01)
CPC (source: EP)
B41M 5/124 (2013.01)
Citation (search report)
See references of WO 9423952A1
Designated contracting state (EPC)
BE DE ES FR GB IT PT
DOCDB simple family (publication)
DE 4312854 A1 19941027; CZ 274795 A3 19960214; DE 59403256 D1 19970807; EP 0695236 A1 19960207; EP 0695236 B1 19970702; ES 2105702 T3 19971016; WO 9423952 A1 19941027
DOCDB simple family (application)
DE 4312854 A 19930421; CZ 274795 A 19940416; DE 59403256 T 19940416; EP 9401186 W 19940416; EP 94914390 A 19940416; ES 94914390 T 19940416