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Information @ a Glance

General

  • Phthalocyanine (Pc) is a beautifully symmetrical 18 p-electron aromatic macrocycle, closely related to the naturally occuring porphyrins. Like the porphyrins, the Pc macrocycle can play host to over seventy different metal ions in its central cavity.
  • Its fundamental constitution is similar to chlorophyll and hem of hemoglobin which exist in the natural world, and it consists of very large conjugated double bond of tetrabenzotetraazaporphine constitution.

Manufacturing Process

  • The raw materials required for manufacturing phthalocyanine blue are phthalimide, urea, cupric chloride, catalyst, alkali and acid. The above raw materials can be sourced from local chemical dealers/agents.
  • The equipments required  are pulverisers, mixer, reactors, ball mill, mixing tank with stirrer, rotary press, rotary/tray driers and pumps etc. Other miscellaneous equipments like electrical & piping installations are required.
  • Copper Phthalocyanine dyes are produced by introducing solubilizing groups, such as one or more sulfonic acid functions in CPC structure. These dyes find extensive use in various areas of textile dyeing (Direct dyes for cotton), for spin dyeing and in the paper industry

Market

  • Phthalocyanine pigments hold significant position in the pigment trade owing to their excellent properties such as resistance to alkalies and acids, non-bleeding in solvents, brilliancy of colour, tinting strength, covering power and light fastness. They dominated the market within a short period of their introduction into the market.
  • World Market in 1999 - $7.5billion … Iron Oxide·Phthalocyanine Compete for 1st Place   Color pigments are rising in the pigment market that is led by Titanium Dioxide (TiO2).    Production of white·black·color pigments in 1999 was 5.7million m.t., while TiO2 held 68%, followed by Iron Oxide with 16%, pigment grade carbon black with 8%, and other pigments with 8%.

Application

  • A major application of phthalocyanine pigments is in the production of cyan printing inks used for printing paper and packaging materials. Nowadays, both metal-containing pigments and metal-free phthalocyanine pigments are commercially available and compete with one another
  • Copper phthalocyanine dyes are produced by introducing solubilizing groups, such as one or more sulfonic acid functions in CPC structure. These dyes find extensive use in various areas of textile dyeing (Direct dyes for cotton), for spin dyeing and in the paper industry. Direct blue 86 is the sodium salt of CPC-sulfonic acid whereas direct blue 199 is the ammonium salt of the CPC-sulfonic acid.

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