CA813769A - Optical brightening of paper - Google Patents

Optical brightening of paper

Info

Publication number
CA813769A
CA813769A CA813769A CA813769DA CA813769A CA 813769 A CA813769 A CA 813769A CA 813769 A CA813769 A CA 813769A CA 813769D A CA813769D A CA 813769DA CA 813769 A CA813769 A CA 813769A
Authority
CA
Canada
Prior art keywords
paper
optical brightening
brightening
optical
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA813769A
Inventor
Fischer Franz
Bettschen Erwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis Corp
Original Assignee
Geigy Chemical Corp
Publication date
Application granted granted Critical
Publication of CA813769A publication Critical patent/CA813769A/en
Expired legal-status Critical Current

Links

CA813769A Optical brightening of paper Expired CA813769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA813769T

Publications (1)

Publication Number Publication Date
CA813769A true CA813769A (en) 1969-05-27

Family

ID=36286275

Family Applications (1)

Application Number Title Priority Date Filing Date
CA813769A Expired CA813769A (en) Optical brightening of paper

Country Status (1)

Country Link
CA (1) CA813769A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339238A (en) * 1980-01-14 1982-07-13 Ciba-Geigy Corporation Stable aqueous formulations of stilbene fluorescent whitening agents
US4386965A (en) * 1980-07-03 1983-06-07 Ciba-Geigy Corporation Process for obtaining coating compositions of improved whiteness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339238A (en) * 1980-01-14 1982-07-13 Ciba-Geigy Corporation Stable aqueous formulations of stilbene fluorescent whitening agents
US4386965A (en) * 1980-07-03 1983-06-07 Ciba-Geigy Corporation Process for obtaining coating compositions of improved whiteness

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