(19)
(11) EP 0 202 803 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.06.1987 Bulletin 1987/23

(43) Date of publication A2:
26.11.1986 Bulletin 1986/48

(21) Application number: 86303326

(22) Date of filing: 01.05.1986
(84) Designated Contracting States:
BE DE FR GB IT NL SE

(30) Priority: 14.05.1985 AU 54185

(71) Applicant: COMMONWEALTH OF AUSTRALIA DEPARTMENT OF INDUSTRY TECHNOLOGY AND COMMERCE
 ()

(72) Inventors:
  • Akerman, Alfred M.
     ()
  • Klick, David I.
     ()
  • Mayrick, Robert George
     ()
  • Paul, George Lange
     ()
  • Reid, Gavin Pierce
     ()
  • Supurovic, Darko
     ()
  • Tsuda, Haruki
     ()

   


(54) Laser curing of coatings and inks


(57) A method of curing polymer coatings by laser photochemistry in which UV laser irradiation of the coating containing a photoinitiator sensitive to a selected wavelength of the laser light effects a low energy cure of the coatings. The total energy to effect a cure is markedly reduced by applying a series of pulses of the laser light at a low single pulse fluence. A reduction of the single pulse fluence at a constant pulse repetition rate or a reduction of the pulse repetition rate at a constant single pulse fluence tends to further reduce the total energy required to effect a cure of the coating.






Search report