Invention Application
WO1989001074A1 NONWOVEN FABRIC-LIKE PRODUCT USING A BACTERIAL CELLULOSE BINDER AND METHOD FOR ITS PREPARATION
审中-公开
使用细菌纤维素粘合剂的非织造织物制品及其制备方法
- Patent Title: NONWOVEN FABRIC-LIKE PRODUCT USING A BACTERIAL CELLULOSE BINDER AND METHOD FOR ITS PREPARATION
- Patent Title (中): 使用细菌纤维素粘合剂的非织造织物制品及其制备方法
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Application No.: PCT/US1987001767Application Date: 1987-07-24
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Publication No.: WO1989001074A1Publication Date: 1989-02-09
- Inventor: WEYERHAEUSER COMPANY , JOHNSON, Donald, Curtis , NEOGI, Amar, Nath
- Applicant: WEYERHAEUSER COMPANY
- Assignee: WEYERHAEUSER COMPANY
- Current Assignee: WEYERHAEUSER COMPANY
- Main IPC: D21F11/00
- IPC: D21F11/00
Abstract:
The present invention is a method of bonding a fibrous wet laid nonwoven fabric-like product using bacterial cellulose as a binder. The bacterial cellulose most useful for the invention is the type formed in an agitated culture. Microorganisms of the genus Acetobacter which are genetically adapted to be good cellulose producers under agitated conditions are preferred cellulose producers. From 1-30 % of the bacterial cellulose may be added to a watter slurry of other sheet forming fibers as a binder. Preferably 20 % or less bacterial cellulose is used since higher amounts retard drainage rates significantly. Bacterial cellulose conveys many desirable properties such as excellent hydrophilicity with low air porosity and high tensile index. It may be used in many cases as a total replacement for the latex binders now used for manufacture of nonwoven fabrics. Bacterial cellulose is especially well adapted for the manufacture of pattern bonded sheets.
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