Sized paper, process for producing same and use thereof

Details Sized paper, process for producing same and use thereof Sized paper, process for producing same and use thereof

1993-11-01

1994-12-20

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162179, 1621816, D21H 2116

Patent

active

053743350

ABSTRACT:
The present invention relates to a sized paper containing a hydrophobic zeolite. Suitably, the sized paper is fine paper, kraft liner or paperboard. In paperboard intended for solid or liquid foodstuffs, tobacco or medicines, use is also made of the capacity of the zeolite to reduce, by adsorption, the problem of transfer from the package to its content of substances causing undesirable taste or hazardous substances. The present invention also relates to a method for production of the sized paper by forming and dewatering a suspension of lignocellulose-containing fibres, where the dewatering is carried out in the presence of a hydrophobic zeolite. Due to the inert nature of the zeolite, it can be used in papermaking within a very broad pH range. The present invention also relates to the use of a hydrophobic zeolite for the production of sized paper as well as use of the thus-sized paper in packaging material.

REFERENCES:
patent: 2581186 (1952-01-01), Green
patent: 3266973 (1966-08-01), Crowley
patent: 3694202 (1972-09-01), Sawyer
Donald W. Breck, "Zeolite Molecular Sieves", Structure, Chemistry, and Use, J. Wiley & Sons, Jul. 1973.
Chem. Abstracts, 93:131113t, "Absorbent Paper", Gifu Prefecture Japan Kokai Tokkyo Kohno 80 62,299.
H. van Bekkum (Editors), "Introduction to Zeolite Science and Practice", Studies in Surface Science and Catalysis, vol. 58, 1991.
Peter A. Jacobs et al, "Synthesis of High-Silica Aluminosilicate Zeolites", Studies in Surface Science and Catalysis,, Elsevier Science Publishers B.V., vol. 33, 1987.

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