Direct pigment is also called the pigment can be substantive absorbed as well by cellulose. Also called salt because the pigment in the dyeing process always added salt to enhance absorption. Some of the pigment can also be used to dye protein fiber.
The chemical structure of the pigment is a compound containing azo group sulfonat cluster as solvent. Pigment can be a direct monoazo compound, diazo, triazo or tetraazo. Hidroksil cluster in the cellulose molecule an important role in the dyeing with pigment direct. When the atoms Hydrogen from the cluster hidroksil replaced arsetil group, the fiber can not be dyed with pigment direct. This is because cluster hidroksil in the cellulose molecule can cause Hydrogen ties with the cluster-cluster hidroksil, amina, and the azo pigment molecule.
In general the pigment is a direct diazo compound, which contains several cluster sulfonat, by the contention that Meyer substabtifitas pigment direct many of the molecule-shaped molecule that can be located aft, so straight on the fiber. Dekloisme event is one proof that the direct pigment is located on the surface molecule-molecule fiber oriented parallel with the temperature fiber. But the original form of a compound trans substabtif more than bah compound. Hodgsoon Marsden and then add other than the molecule must be the core of Linear-core its aromatic must also located a field.
The chemical structure of the pigment is a compound containing azo group sulfonat cluster as solvent. Pigment can be a direct monoazo compound, diazo, triazo or tetraazo. Hidroksil cluster in the cellulose molecule an important role in the dyeing with pigment direct. When the atoms Hydrogen from the cluster hidroksil replaced arsetil group, the fiber can not be dyed with pigment direct. This is because cluster hidroksil in the cellulose molecule can cause Hydrogen ties with the cluster-cluster hidroksil, amina, and the azo pigment molecule.
In general the pigment is a direct diazo compound, which contains several cluster sulfonat, by the contention that Meyer substabtifitas pigment direct many of the molecule-shaped molecule that can be located aft, so straight on the fiber. Dekloisme event is one proof that the direct pigment is located on the surface molecule-molecule fiber oriented parallel with the temperature fiber. But the original form of a compound trans substabtif more than bah compound. Hodgsoon Marsden and then add other than the molecule must be the core of Linear-core its aromatic must also located a field.
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