ATE221103T1 - DYE MIXTURES - Google Patents

DYE MIXTURES

Info

Publication number
ATE221103T1
ATE221103T1 AT00810045T AT00810045T ATE221103T1 AT E221103 T1 ATE221103 T1 AT E221103T1 AT 00810045 T AT00810045 T AT 00810045T AT 00810045 T AT00810045 T AT 00810045T AT E221103 T1 ATE221103 T1 AT E221103T1
Authority
AT
Austria
Prior art keywords
dye
dye mixtures
weight
paper
violet
Prior art date
Application number
AT00810045T
Other languages
German (de)
Inventor
Adolf Kaeser
Wolfgang Schlenker
Original Assignee
Ciba Sc Holding Ag
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 Ciba Sc Holding Ag filed Critical Ciba Sc Holding Ag
Application granted granted Critical
Publication of ATE221103T1 publication Critical patent/ATE221103T1/en

Links

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  • Paper (AREA)

Abstract

Disclosed are dye mixtures for shading white paper which may contain fluorescent brightener. The dye mixtures comprise a violet dye according to the formula (1) or (2) indicated in claim 1 and sufficient of a red, blue or further violet dye that this dye mixture is capable of producing in the Cielab colour coordinates system a relative hue angle of 270 to 295.degree. when the dyeing contains 0.00005 to 0.005% by weight of dye, based on the weight of the paper.
AT00810045T 1999-01-29 2000-01-20 DYE MIXTURES ATE221103T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99101931 1999-01-29

Publications (1)

Publication Number Publication Date
ATE221103T1 true ATE221103T1 (en) 2002-08-15

Family

ID=8237483

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00810045T ATE221103T1 (en) 1999-01-29 2000-01-20 DYE MIXTURES

Country Status (3)

Country Link
AT (1) ATE221103T1 (en)
CA (1) CA2297369A1 (en)
DE (1) DE50000294D1 (en)

Also Published As

Publication number Publication date
CA2297369A1 (en) 2000-07-29
DE50000294D1 (en) 2002-08-29

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Legal Events

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