EP 4144914 B1 20240417 - MULTI-LAYER PAPER CONTAINING RECYCLED PAPER AND ADDITIONAL FIBRES
Title (en)
MULTI-LAYER PAPER CONTAINING RECYCLED PAPER AND ADDITIONAL FIBRES
Title (de)
MEHRLAGIGES ALTPAPIER- UND ZUSATZFASERN ENTHALTENDES PAPIER
Title (fr)
PAPIER MULTICOUCHE CONTENANT DU VIEUX PAPIER ET DES FIBRES SUPPLÉMENTAIRES
Publication
Application
Priority
EP 21195241 A 20210907
Abstract (en)
[origin: WO2023036512A1] The paper (10) according to the invention is composed of at least two pressed-together plies having different compositions. A first ply forms a support ply (11). A second ply forms a surface ply (12). In each case, the paper (10) contains used paper fibers and additional fibers which are not used paper fibers. The paper is distinguished in that the additional fibers in each case include a content of fibers from the cup plant (Silphium perfoliatum), of fibers obtained from fruits and/or bark of trees of the baobab genus (Adansonia), of fibers obtained from plants of the Cannabis genus and/or of fibers originating from biogas plant residues. In the support ply, the additional fiber content is 0 to 75 wt.%. In the surface ply, the minimum additional fiber content is 8 wt.% and the maximum additional fiber content is 80 wt.%. The additional fiber content in the surface ply (12) is higher than the additional fiber content in the support ply (11).
IPC 8 full level
D21H 11/12 (2006.01); D21H 11/14 (2006.01); D21H 17/01 (2006.01); D21H 27/30 (2006.01); D21H 27/38 (2006.01)
CPC (source: EP)
D21H 11/12 (2013.01); D21H 11/14 (2013.01); D21H 17/01 (2013.01); D21H 27/30 (2013.01); D21H 27/38 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4144914 A1 20230308; EP 4144914 B1 20240417; EP 4144914 C0 20240417; CN 117916422 A 20240419; ES 2982071 T3 20241014; WO 2023036512 A1 20230316
DOCDB simple family (application)
EP 21195241 A 20210907; CN 202280059923 A 20220728; EP 2022071240 W 20220728; ES 21195241 T 20210907