Method of preventing cellulosic web degradation using an amine v

Details Method of preventing cellulosic web degradation using an amine v Method of preventing cellulosic web degradation using an amine v

1988-08-03

1990-05-22

Alvo, Steve

Paper making and fiber liberation

Processes and products

Non-fiber additive

422 9, 427395, 4273984, 55 74, D21D 300, D21H 522

Patent

active

049274970

ABSTRACT:
A method of combatting cellulosic fibre web degradation which method comprises permeating a stack of cellulosic fibre webs with an amine vapor, characterized in that said method comprises disposing an amine-immobilizing agent to immobilize amine vapor which has passed through at least part of said stack. Thus for example a book deteriorating with age can be treated by putting a charcoal containing sachet inside the front and back covers and by interleaving the rest of the book, every 20 to 50 pages or so, with sachets containing cyclohexylamine carbonate.

REFERENCES:
patent: 3703353 (1972-11-01), Kusterer, Jr. et al.
Ede, et al., Sulphur Dioxide and Vapour Phase Deacidification, London, Sep. 1968, pp. 37-40.
The New V.P.D. Envelope Method Leaflet No. 2, B. G. Robertson Laboratories Limited, London, before Aug. 4, 1987.
Kathpalia, Deterioriation and Conservation of Paper: Part IV Neutralization, Oct. 1962, pp. 245-251.

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