EP 0652808 B1 19970416 - PROCESS FOR MANUFACTURING PAPER WEBS CONTAINING CF OR CB LAYERS FOR PRESSURE SENSITIVE RECORDING PAPER
Title (en)
PROCESS FOR MANUFACTURING PAPER WEBS CONTAINING CF OR CB LAYERS FOR PRESSURE SENSITIVE RECORDING PAPER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CF- ODER CB-SCHICHTEN AUFWEISENDEN PAPIERBAHNEN FÜR DRUCKEMPFINDLICHE AUFZEICHNUNGSPAPIERE
Title (fr)
PROCEDE DE FABRICATION DE BANDES DE PAPIER A COUCHES DE RECEPTION OU D'EMISSION UTILES COMME PAPIERS D'ENREGISTREMENT SENSIBLES A LA PRESSION
Publication
Application
Priority
- DE 4224716 A 19920727
- DE 4224718 A 19920727
- DE 4224719 A 19920727
- EP 9301982 W 19930726
Abstract (en)
[origin: US5597612A] PCT No. PCT/EP93/01982 Sec. 371 Date Jul. 26, 1994 Sec. 102(e) Date Jul. 26, 1994 PCT Filed Jul. 26, 1993 PCT Pub. No. WO94/02258 PCT Pub. Date Feb. 3, 1994A process is disclosed for manufacturing paper web containing a CF layer for pressure sensitive recording paper. In order to ensure full sizing, the paper web is subjected to intermass sizing and the coating ink containing color acceptors constituted of color-reactive, mineral pigments is applied with a coating device in which the paper web is guided between two transfer rollers separated by a gap or set at minimal pressure. One of the transfer rollers applies volumetrically pre-dosed coating ink by means of a rotary and driven surface-profiled doctor bar, forming the CF layer on one side of the paper web, and the other transfer roller at the same time applies a volumetrically pre-dosed aqueous solution on the other side of the paper web, also by means of a rotary driven surface-profiled doctor bar. The amount of color-reactive pigment in the dried CF-layer comprises between 3.5 and 5 g/m2.
IPC 1-7
IPC 8 full level
B05D 1/28 (2006.01); B05D 1/34 (2006.01); B05D 7/00 (2006.01); B05D 7/24 (2006.01); B41M 5/124 (2006.01); D21H 17/00 (2006.01); D21H 19/36 (2006.01); D21H 19/84 (2006.01); D21H 21/54 (2006.01); D21H 23/56 (2006.01)
CPC (source: EP US)
B41M 5/124 (2013.01 - EP US); D21H 17/00 (2013.01 - EP US); D21H 19/84 (2013.01 - EP US); D21H 21/54 (2013.01 - EP US); D21H 23/56 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES FR GB IT SE
DOCDB simple family (publication)
US 5597612 A 19970128; DE 59306209 D1 19970522; EP 0652808 A1 19950517; EP 0652808 B1 19970416; ES 2102049 T3 19970716; FI 106391 B 20010131; FI 950283 A0 19950123; FI 950283 A 19950123; JP H07509669 A 19951026; WO 9402258 A1 19940203
DOCDB simple family (application)
US 25684694 A 19940726; DE 59306209 T 19930726; EP 9301982 W 19930726; EP 93917650 A 19930726; ES 93917650 T 19930726; FI 950283 A 19950123; JP 50392693 A 19930726