(19)
(11) EP 1 258 561 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.09.2004 Bulletin 2004/37

(43) Date of publication A2:
20.11.2002 Bulletin 2002/47

(21) Application number: 02445060.3

(22) Date of filing: 21.05.2002
(51) International Patent Classification (IPC)7: D21H 21/20, D21H 17/55, D21H 17/56, C08G 69/48, C08G 73/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 18.05.2001 SE 0101810

(71) Applicant: SCA Hygiene Products AB
405 03 Göteborg (SE)

(72) Inventors:
  • Sandberg, Sussan
    439 35 Onsala (SE)
  • Wallenius, Hans
    459 32 Ljungskile (SE)
  • Struck, Oliver
    52349 Düren (DE)
  • Gorzynski, Marek
    52349 Düren (DE)

(74) Representative: Egeröd, Lisbeth et al
Ström & Gulliksson IP AB Lindholmspiren 5
417 56 Gothenburg
417 56 Gothenburg (SE)

   


(54) Wet-strong tissue paper


(57) A strong and soft tissue paper having a bulk between 2 and 8 cm3/g, containing a wet strength agent in the form of a nitrogen-containing polymer having hydrophobic side-chain substituents. The tissue paper before converting has a relative wet strength value (RWS) of at least 45%.





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