Chemi-mechanical liner board

Details Chemi-mechanical liner board Chemi-mechanical liner board

1990-08-02

1992-01-14

Chin, Peter

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

162129, 162142, 162149, D21H 1108

Patent

active

050807587

ABSTRACT:
A sheet having substantially all of the qualities of liner board is formed solely from mechanical pulp using two different stocks to form discrete layers, one of the layers being preferably at least 50% coarse chemi-mechanical pulp and at least one surface layer being preferably of a chemi-mechanical fine pulp. Preferably the coarse layer will be a chemi-thermo-mechanical Douglas Fir pulp and the fine pulp will be a chemi-thermo-mechanical Western red cedar pulp.

REFERENCES:
patent: 4145246 (1979-03-01), Goheen et al.
patent: 4431479 (1984-02-01), Barbe et al.
patent: 4781793 (1988-11-01), Halme
patent: 4888092 (1989-12-01), Prusas et al.
patent: 4938843 (1990-07-01), Lindhal

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