FI970398A - Method for making paper - Google Patents

Method for making paper Download PDF

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Publication number
FI970398A
FI970398A FI970398A FI970398A FI970398A FI 970398 A FI970398 A FI 970398A FI 970398 A FI970398 A FI 970398A FI 970398 A FI970398 A FI 970398A FI 970398 A FI970398 A FI 970398A
Authority
FI
Finland
Prior art keywords
pulp
percent
farm
making paper
iso brightness
Prior art date
Application number
FI970398A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI108548B (en
FI970398A0 (en
Inventor
Paeivi Pauliina Rousu
Pasi Petteri Rousu
Esa Juhani Rousu
Original Assignee
Chempolis Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chempolis Oy filed Critical Chempolis Oy
Priority to FI970398A priority Critical patent/FI108548B/en
Publication of FI970398A0 publication Critical patent/FI970398A0/en
Publication of FI970398A publication Critical patent/FI970398A/en
Application granted granted Critical
Publication of FI108548B publication Critical patent/FI108548B/en

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Abstract

The invention concerns a method for improving paper ISO brightness by adding farm pulp to wood pulp that is used as raw material in paper production. The ISO brightness of the added farm pulp is at least 85 percent, preferably at least 88 percent, and most especially at least 90 percent. The farm pulp is produced preferably with a formic acid based process.
FI970398A 1997-01-30 1997-01-30 Method for improving the brightness of paper FI108548B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI970398A FI108548B (en) 1997-01-30 1997-01-30 Method for improving the brightness of paper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI970398 1997-01-30
FI970398A FI108548B (en) 1997-01-30 1997-01-30 Method for improving the brightness of paper

Publications (3)

Publication Number Publication Date
FI970398A0 FI970398A0 (en) 1997-01-30
FI970398A true FI970398A (en) 1998-07-31
FI108548B FI108548B (en) 2002-02-15

Family

ID=8547940

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970398A FI108548B (en) 1997-01-30 1997-01-30 Method for improving the brightness of paper

Country Status (1)

Country Link
FI (1) FI108548B (en)

Also Published As

Publication number Publication date
FI108548B (en) 2002-02-15
FI970398A0 (en) 1997-01-30

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