Process for manufacture of high bulk paper

Details Process for manufacture of high bulk paper Process for manufacture of high bulk paper

1982-06-30

1984-08-07

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

162100, 162123, 162141, 162142, D21H 524

Patent

active

044642245

ABSTRACT:
A process and apparatus for the manufacture of high bulk paper, or a high bulk layer of a multi-layered paper, which uses a mixture of fully hydrated paper making fibres and substantially unhydrated fibres. The unhydrated fibres may be mixed with the conventional slurry of hydrated fibres shortly before the head box. The web may be dried primarily by pressing, with the unhydrated fibres remaining relatively unhydrated throughout the process and ensuring a bulky product; through-driers need not be used. The invention also covers the novel product of this process.

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Nelson, "Energy Saving in the Press Section", pp. 30-33, PIMA (Feb. 1981).

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