Process for sizing paper and similar products

Details Process for sizing paper and similar products Process for sizing paper and similar products

D - Textiles, Paper

21

H

9/1, 9/39

D21H 21/16 (2006.01) D21H 17/00 (2006.01) D21H 23/16 (2006.01) D21H 23/50 (2006.01)

Patent

CA 1335861

Sizing compounds particularly cyclic acid anhydrides are used as such or in solution with non-aqueous protic and/or protic solvents to mass-size cellulose products such as paper, board, cardboard and similar cellulose and synthetic fibre products. In a preferred embodiment, the cyclic acid anhydrides or their solutions in inert solvents are introduced into the wet-end of the paper machine at a position where the paper slurry is in a highly turbulent state so that they are immediately homogenised and reacted with the cellulose stock.

603162

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