【発明の名称】リグニン含有パルプの熱及び光誘発褪色の軽減方法 - The Research Foundation of State University of New York

Title:

【発明の名称】リグニン含有パルプの熱及び光誘発褪色の軽減方法

Document Type and Number:

Japanese Patent JPH09504834

Kind Code:

A

Abstract:

A method and article of manufacture thereof is provided for reducing brightness reversion in bleached lignin-containing pulps or newsprint by the treatment of the bleached lignin-containing pulp or newsprint with 2,5-dihydroxydioxane. In one embodiment, calcium carbonate is added to enhance the activity of 2,5-dihydroxydioxane.

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Inventors:

Francis, Raymond, Sea.
Evans, Daniel, Bee.

Application Number:

JP50772795A

Publication Date:

May 13, 1997

Filing Date:

August 24, 1994

Export Citation:

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Assignee:

The Research Foundation of State University of New York
Minerals Technologies, Inc.

International Classes:

D21C9/00; D21C9/10; D21H19/10; D21H11/00; D21H17/00; D21H17/03; D21H17/05; D21H17/66; D21H23/04; D21H23/30; (IPC1-7): D21H17/00; D21H19/10

Attorney, Agent or Firm:

Tatsuyuki Unuma (3 others)

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