EP 0563313 B1 19950215 - SELECTIVELY WEAKENED CORES FOR CORE WOUND PAPER PRODUCTS.
Title (en)
SELECTIVELY WEAKENED CORES FOR CORE WOUND PAPER PRODUCTS.
Title (de)
LOKAL GESCHWÄCHTE SPULENKERNE FÜR DARAUF GEWICKELTE PAPIERPRODUKTE.
Title (fr)
MANDRINS AFFAIBLIS DE MANIERE SELECTIVE POUR ROULEAUX DE PAPIER.
Publication
Application
Priority
- US 9109398 W 19911211
- US 62980890 A 19901219
Abstract (en)
[origin: WO9211196A1] Disclosed is a core for core wound paper products, such as toilet tissue or paper towels. The core (20) is provided with a plurality of axially oriented continuous score lines (36), perforations, or holes. The continuous score lines (36), perforations, or holes weaken the core, so that upon flattening, vertices are formed. When the core (20) is rerounded, each score line (36), perforation, or hole forms a vertex, so that a predefined polygonally shaped cross section, more nearly approximating a circle, is formed.
IPC 1-7
IPC 8 full level
B65H 75/10 (2006.01); B65H 75/22 (2006.01)
CPC (source: EP US)
B65H 75/10 (2013.01 - EP); B65H 75/2209 (2021.05 - EP US); B65H 2701/511 (2013.01 - EP); B65H 2701/532 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9211196 A1 19920709; AR 247868 A1 19950428; AT E118457 T1 19950315; AU 9174991 A 19920722; CA 2096976 A1 19920620; CA 2096976 C 19980818; CN 1029110 C 19950628; CN 1063263 A 19920805; DE 69107479 D1 19950323; DE 69107479 T2 19950817; DK 0563313 T3 19950410; EP 0563313 A1 19931006; EP 0563313 B1 19950215; ES 2068028 T3 19950401; GR 3015070 T3 19950531; HK 1006163 A1 19990212; JP 3014449 B2 20000228; JP H06503794 A 19940428; MX 9102674 A 19921001; TR 25560 A 19930701
DOCDB simple family (application)
US 9109398 W 19911211; AR 32142791 A 19911218; AT 92904115 T 19911211; AU 9174991 A 19911211; CA 2096976 A 19911211; CN 91112822 A 19911219; DE 69107479 T 19911211; DK 92904115 T 19911211; EP 92904115 A 19911211; ES 92904115 T 19911211; GR 940403942 T 19950216; HK 98105328 A 19980615; JP 50432292 A 19911211; MX 9102674 A 19911218; TR 115791 A 19911219