The printing industry involves creating printed materials on a large scale for commercial or personal use like newspapers, books, magazines, and packaging, and advertising.

Here's a more detailed breakdown of the chemicals used in printing industries:

Product NameApplication
Solvents

  • Hydrocarbons:

  • These include aliphatic solvents like naphtha, paraffin hydrocarbons (pentane, hexane, heptane, isooctane, mineral oil), and aromatic solvents (benzene, toluene, xylene).
  • Alcohols:

  • Examples include ethanol (ethyl alcohol), normal propanol, and other alcohols used in flexographic and heliogravure compounds.
  • Ketones:

  • Solvents like acetone and methyl ethyl ketone (MEK) are used for their fast evaporation rate and solvency power.
  • Glycols:

  • Propylene glycol and ethylene glycol are used to control drying time and prevent clogging in inkjet printers.
  • Other Solvents:

  • Toluene, isopropanol, 2-butanone, ethyl acetate, and methanol are also used as solvents.
  • Dichloropropane (DCP):

  • Can be used as a solvent in printing inks, potentially replacing organic solvents like toluene, acetone, and xylene derivatives.
Inks

  • Pigments: These provide color to the ink, with common examples including carbon black.

  • Resins: These act as binders, holding the pigment and other components together.

  • Waxes: Waxes are used as additives to improve certain properties of the ink.

  • Drying Agents: These help the ink dry quickly.

  • Additives: Other additives, such as chelating agents, can be used to improve ink performance.

Other Chemicals

  • Fountain Solutions: Used in offset printing to counter-etch the non-image area of a printing plate, typically containing an acid base, desensitizing salts, and gum Arabic.

  • Plate Cleaners: Used to clean printing plates.

  • Roller Washes: Used to clean rollers.

  • Blanket Washes: Used to clean blankets.

  • Emulsions: Used in screen printing to create photo-reactive stencils.

  • Sensitizers: Used in screen printing to create photo-reactive stencils, with newer sensitizers being safer and less toxic than older options like bichromates.

  • Other Chemicals: Various other chemicals are used for specific purposes in the printing industry, such as additives, coatings, and cleaning agents.