Chemi-mechanical liner board
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United States of America Patent
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Jan 14, 1992
Grant Date -
N/A
app pub date -
Aug 2, 1990
filing date -
Aug 2, 1990
priority date (Note) -
Expired
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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.
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