Carbon Black Pigment

Carbon Black Pigment

Carbon blacks are typically elemental Carbon that is available in highly dispersed powdered forms. They are produced from hydrocarbons by controlled vapour-phase pyrolysis.

Carbon Black is one of the most important types of pigments that have major industrial applications. In Producing Carbon Black there are numerous processes available. Mostly all the production processes depends on thermal decomposition or incomplete burning of fuel oil or natural gas (hydro carbons). Majority of all carbon black is made by employing the furnace process. “Furnace black” and “channel black” are the two very popular variants of Carbon Black. Others include acetylene black, lamp black and thermal black. Mostly all types of Carbon blacks contain oxygen, hydrogen, nitrogen and sulphur.

Key Features of Carbon Black

• High color strength in mass tone and in toned down applications.
• Excellent UV protecting properties
• Shows good chemical inertness
• Good surface appearance
• Outstanding antistatic properties

Application of Carbon Black

Toners and Printing Inks- Carbon black enhance formulations and offer broad flexibility in terms of specific color requirements. Applications of carbon Blacks include Letterpress, Lithographic, gravure, flexographic, and screen printing processes. It is important here to know that each of these processes needs different performance attributes.

Plastics:
Used in plastic masterbatch applications, like films, conductive packaging, pipes, fibers, moldings, and semi-conductive cable compounds.

Flexography ink:
This ink is fluid, with instant drying features. Rheology is a vital factor here. Carbon Black pigments with low oil adsorption pigments are a must.

Offset printing:
A high color strength along with high pigment loadings, smooth flow, and a viscosity that is fairly working are needed from the application of Carbon Black. Offset ink must not be miscible with water. If the requirement is high gloss then lower oil absorption pigments are required.

Coatings:
Carbon blacks provide coating applications for sectors like marine and aerospace. By way of pigmentation, conductivity and UV protection.

Screen Printing:
The critical performance factors are rheology, low viscosity. This can be achieved by pigment blacks that has higher structures. Optical density property can be obtained by relatively low pigment black loadings.

Industrial Rubber Products and Tyres:
Carbon black is applied for uses like innerliners for tyres, sidewalls and treads, for industrial rubber products, usages include belts, hoses and gaskets. In fact a majority of the Carbon Black that is produced goes into the making of reinforcing filler for use in tyres and other rubber article.