EP 0336842 B1 19921202 - PROCESS FOR PRODUCING A PAPER PULP FOR FIDUCIARY USE
Title (en)
PROCESS FOR PRODUCING A PAPER PULP FOR FIDUCIARY USE
Publication
Application
Priority
FR 8804548 A 19880406
Abstract (en)
[origin: EP0336842A1] Process for the manufacture of a paper pulp for fiduciary use from a raw material consisting of textile fibres is characterised in that the operations of laundering, bleaching, shredding, unstringing, cutting and washing of the textile fibres are carried out in at least one processing machine (10, 40) of the type with two screws rotating together, in a number of stages following each other continuously. To this end the operations comprise a stage of feeding and mixing the raw material and water, at least one compression stage, at least one stage of shearing the textile fibres, at least one processing stage with the introduction of the laundering and bleaching reactants, at least one stage of washing of the bleached pulp with introduction of the washing water, and a stage of transfer and removal of the bleached and washed pulp. <IMAGE>
IPC 1-7
IPC 8 full level
D21B 1/30 (2006.01); D21C 9/00 (2006.01); D21H 11/12 (2006.01)
CPC (source: EP US)
B30B 9/121 (2013.01 - EP US); B30B 9/16 (2013.01 - EP US); D21B 1/30 (2013.01 - EP US); D21C 9/00 (2013.01 - EP US); D21H 11/12 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0336842 A1 19891011; EP 0336842 B1 19921202; CA 1331075 C 19940802; DE 68903662 D1 19930114; DE 68903662 T2 19930506; DK 163389 A 19891007; DK 163389 D0 19890405; DK 171829 B1 19970623; ES 2036354 T3 19930516; FI 88186 B 19921231; FI 88186 C 19930413; FI 891626 A0 19890405; FI 891626 A 19891007; FR 2629844 A1 19891013; FR 2629844 B1 19910927; US 4983256 A 19910108
DOCDB simple family (application)
EP 89400938 A 19890405; CA 595879 A 19890406; DE 68903662 T 19890405; DK 163389 A 19890405; ES 89400938 T 19890405; FI 891626 A 19890405; FR 8804548 A 19880406; US 33393789 A 19890406