Papermaking process
AssigneeAkzo Nobel N.V.
InventorsJonas Liesén, Kerstin Malmborg-Nyström
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Abstract
The invention relates to a papermaking process in which the static potential of the fibers/paper product can be controlled and reduced while enhancing the softness of the produced paper product. The papermaking process comprises adding to a suspension of cellulosic fibers: (i) a smectite clay (ii) at least one anionic compound selected from anionic microparticles and anionic surfactants (iii) at least one polymer which is cationic, non-ionic or amphoteric (iv) at least one non-ionic surfactant; and/or an oil, wax or fat.
Claims21
A papermaking process comprising adding to a suspension of cellulosic fibres:
- (i) a smectite clay
- (ii) at least one anionic compound selected from anionic microparticles and anionic surfactants
- (iii) at least one polymer which is cationic, non-ionic or amphoteric
- (iv) at least one non-ionic surfactant;
- and/or an oil, wax or fat.
A papermaking process comprising adding to a suspension of cellulosic fibres:
- (i) a synthetic hectorite
- (ii) at least one anionic surfactant or anionic microparticles
- (iii) at least one polymer which is cationic, non-ionic or amphoteric
- (iv) at least one non-ionic surfactant;
- and/or an oil, wax or fat.
A papermaking process comprising adding to a suspension of cellulosic fibres:
- (i) a synthetic hectorite
- (ii) at least one anionic compound selected from anionic surfactants
- (iii) at least one polymer which is cationic, non-ionic or amphoteric
- (iv) at least one non-ionic surfactant;
- and/or an oil, wax or fat.
Dependencies are inferred from the claim text.