Carbon Black for Paper

Par­ti­cu­lar­ly fine pig­ments and gas blacks are used to dye paper a par­ti­cu­lar­ly deep black. Ano­ther use of car­bon black in paper is in the area of ther­mal and elec­tri­cal con­duc­ti­vi­ty. Car­bon black is used to color the pulp by the sul­fa­te or sul­fi­te process.