Process for the preservation of printed cellulosic materials

Details Process for the preservation of printed cellulosic materials Process for the preservation of printed cellulosic materials

D - Textiles, Paper

21

H

8/93.49

D21H 25/00 (2006.01) B41M 7/00 (2006.01) D06M 13/325 (2006.01) D21H 25/18 (2006.01)

Patent

CA 1315049

Abstract of the Disclosure A process and composition for use in the deacidi- fication of cellulosic materials, such as books and printed papers, which comprises treating the materials under vacuum condition with a gaseous mixture of ammonia, and an organo epoxide reagent selected from the group consisting of alkyl compounds or mixtures thereof, and which produce in situ primary, secondary and tertiary amino compounds upon reaction with the ammonia.

596717

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