Process for production of linerboard and corrugated medium
First Claim
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1. A process for producing linerboard or corrugated medium, comprising:
- (a) preparing a suspension of unbleached chemical or semichemical pulp or pulp from recycled fibers,(b) treating the diluted pulp with oxygen and a laccase in an amount of 10-50,000 units per gram of dry matter, and(c) dewatering the treated pulp in a paper making machine to remove process water and produce the linerboard or corrugated medium,wherein no beating or refining of the pulp occurs during or after step (b).
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Abstract
This invention relates to a process for producing linerboard or corrugated medium.
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Citations
17 Claims
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1. A process for producing linerboard or corrugated medium, comprising:
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(a) preparing a suspension of unbleached chemical or semichemical pulp or pulp from recycled fibers, (b) treating the diluted pulp with oxygen and a laccase in an amount of 10-50,000 units per gram of dry matter, and (c) dewatering the treated pulp in a paper making machine to remove process water and produce the linerboard or corrugated medium, wherein no beating or refining of the pulp occurs during or after step (b). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A process for producing linerboard or corrugated medium, comprising:
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(a) preparing a suspension of unbleached chemical or semichemical pulp or pulp from recycled fibers, (b) treating the diluted pulp with oxygen and a catechol oxidase in an amount of 10-50,000 units per gram of dry matter, and (c) dewatering the treated pulp in a paper making machine to remove process water and produce the linerboard or corrugated medium, wherein no beating or refining of the pulp occurs during or after step (b). - View Dependent Claims (9, 10, 11, 12)
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13. A process for producing linerboard or corrugated medium, comprising:
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(a) preparing a suspension of unbleached chemical or semichemical pulp or pulp from recycled fibers, (b) treating the diluted pulp with oxygen and a bilirubin oxidase in an amount of 10-50,000 units per gram of dry matter, and (c) dewatering the treated pulp in a paper making machine to remove process water and produce the linerboard or corrugated medium, wherein no beating or refining of the pulp occurs during or after step (b). - View Dependent Claims (14, 15, 16, 17)
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Specification