Newsprint papers

Details Newsprint papers Newsprint papers

2007-12-25

2007-12-25

Fortuna, José A. (Department: 1731)

Paper making and fiber liberation

Processes and products

With coating after drying

C162S181200, C162S158000, C162S175000, C162S147000, C428S195100

Reexamination Certificate

active

10780558

ABSTRACT:
The object of the present invention provides a newsprint paper having a friction coefficient in an appropriate range, a sufficient sizing quality, a low “neppari” strength and excellent printability. A newsprint paper having a static friction coefficient in an appropriate range of 0.44-0.74, a sufficient sizing quality and a low “neppari” strength can be obtained by applying a coating solution containing an alkenyl ketene dimer represented by general formula 1 below and a paper surface-modifying agent on a newsprint base paper, especially a neutralized newsprint base paper containing 1% by weight or more and 30% by weight or less of calcium carbonate as a filler and 50% by weight or more of deinked pulp.wherein R1and R2represent an unsaturated hydrocarbon group containing 8-30 carbon atoms.

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