(19)
(11) EP 0 289 993 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.12.1990 Bulletin 1990/49

(43) Date of publication A2:
09.11.1988 Bulletin 1988/45

(21) Application number: 88107104.7

(22) Date of filing: 03.05.1988
(51) International Patent Classification (IPC)4: B41M 5/00, D21H 19/52, D21H 19/34
(84) Designated Contracting States:
AT BE DE ES FR GB IT NL SE

(30) Priority: 04.05.1987 US 45985
10.03.1988 US 166283
06.04.1988 US 172720

(71) Applicant: WEYERHAEUSER COMPANY
Tacoma, WA 98477 (US)

(72) Inventors:
  • Johnson, Donald Curtis
    Auburn, WA 98002 (US)
  • LeBlanc, Henry Albert
    Federal Way, WA 98125 (US)
  • Neogi, Amar Nath
    Seattle, WA 98125 (US)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Bacterial cellulose as surface treatment for fibrous web


    (57) A fibrous web product with a surface treatment containing bacterial cellulose and a method of surface treating such fibrous webs. The bacterial cellulose is applied to at least one surface of a fibrous web, to make products such as printing material suitable for magazines or advertisements, by use of conventional paper manufacturing equipment. The bacterial cellulose may be applied singularly or in combination with other materials such as fillers or pigments. Bacterial cellulose applied at relatively low concentrations gives excellent properties of gloss, smoothness, ink receptivity and holdout, and surface strength.







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