As the name suggests paper dyes are used for colouring paper. There are different types of dyes used for colouring paper, like Acid Dyes, Basic Dyes and Direct Dyes. Different dyes have different properties and are used in different kind of paper.
Basic Dyes have high affinity to wood from which paper is made and hence they are widely used. Basic dyes are used for internal colouring of one-time use paper like box boards, wrappings, notion bag papers newsprint etc.They are generally available in Liquid and Powder form
Direct Dyes have high affinity short cellulosic fibre and paper is made from them and hence direct dyes also are used in colouring of paper. Direct dyes are used for colouring for all type of fine and coarse papers from thinnest facial tissues to the heaviest paper and boards. Direct Dyes are rarely used for surface colouring because they exhaust rapidly onto the cellulose. They are mainly available in Liquid Form.
Acid Dyes are used for internal colouring or surface colouring of paper. All paper coloured with Acid dyes will bleed in Water. They are only available in Powder form.
Paper Pulp can be coloured by either batch or continuous method.
In batch method the colouring maybe effected in a pulper, beather, cycling chest or blending chest based on the quantity of fibre.
In Continuous process the dye solution or pigment suspensions are metered into a moving stream of pulps.
The paper can be coated to provide ultra smooth surface for quality printing.
Auramine O
Basic Yellow 2
C.I.no.41000
Methyl Violet
Basic Violet 1
C.I.no.42535
Rhodamine B
Basic Violet 10
C.I.no.4517
Victoria Blue B
Basic Blue 26
C.I.no.44045
Malachite Green
Basic Green 4
C.I.no.42000
Auramine O
Basic Yellow 2
C.I.no.41000
Bismarck Brown G
Basic Brown 1
C.I.no.21000
Bismarck Brown R
Basic Brown 4
C.I.no.21010
Methyl Violet
Basic Violet 1
C.I.no.42535
Crystal Violet
Basic Violet 3
C.I.no.42555
Ethyl Violet
Basic Violet 4
C.I.no.42600
Rhodamine B
Basic Violet 10
C.I.no.45170
Magenta Powder
Basic Violet 14
C.I.no.42510
Brilliant Green
Basic Green 1
C.I.no.42040
Malachite Green
Basic Green 4
C.I.no.42000
Victoria Blue B
Basic Blue 26
C.I.no.44045
Methylene Blue
Basic Blue 9
C.I.no.52015
Direct Blue 71
C.I.no.--
Direct Blue 199
C.I.no.74190
Direct Violet 9
C.I.no.27885
Direct Black 168
C.I.no.--
Direct Brown 44
C.I.no.30145
Direct Yellow 11
C.I.no.4000
Direct Yellow 12
C.I.no.--
Direct Yellow 50
C.I.no.29025
Direct Yellow 107
C.I.no.--
Direct Orange 34
C.I.no.40215
Direct Orange 118
C.I.no.--
Direct Red 80
C.I.no.35780
Direct Red 81
C.I.no.28160
Direct Red 239
C.I.no.--
Direct Red 254
C.I.no.--
Acid Yellow 23
C.I.no.19140
Acid Yellow 36
C.I.no.13065
Acid Yellow 73
C.I.no.45350
Acid Orange 7
C.I.no.15510
Acid Red 18
C.I.no.16255
Acid Violet 17
C.I.no.42640
Acid Blue 9
C.I.no.42090