Channel Black

A type of Carbon Black, or black pigment used in printing ink. Carbon black itself is produced by the partial combustion of hydrocarbon compounds (such as oil, natural gas, wood, or animal bones and tissue) and the condensation of the sooty flame on a cool surface. Channel Black is produced by the contact of a natural gas flame against a metal surface. Because of tight air pollution laws, the process used to produce Channel Black is no longer feasible in the United States, and has been primarily replaced by Furnace Blacks. Channel Black, however, has a highly desirable bluish tint and excellent flow characteristics, and is occasionally imported from other countries when the expense of doing so is warranted.

('CI Pigment Black 7 No. 77266'.)

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