Soft printing paper

Details Soft printing paper Soft printing paper

2005-07-19

2005-07-19

Halpern, Mark (Department: 1731)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S168300, C162S175000, C162S179000

Reexamination Certificate

active

06918994

ABSTRACT:
Printing paper superior in a texture, a feel and ease in turning the page is provided by adjusting the product of the paper density, the breaking length of a paper-making direction and the Young's modulus of the paper-making direction of the paper made by a paper machine within the limits of no less than 2×1018and no more than 10×1018g·N/m4by using the following means independently or in appropriate combination: a means of lowering paper density by increasing the compounding ratios of low-density pulp and low-density filler, using bulking chemicals or reducing press pressure during paper-making process, a means of lowering the paper breaking length of a paper-making direction by improving the compounding ratios of filler, and a means of lowering the Young's modulus of the paper by using a softening agent.

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patent: WO 94/26974 (1994-11-01), None
patent: WO 98/03730 (1998-01-01), None

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