초록 ▼

This invention relates to UV dryers and provides an ultraviolet dryer wherein a UV lamp (2) is supported in a reflector housing (1), said housing including a reflector body member (10) having a reflective surface adjacent the lamp (2) and other surfaces spaced therefrom and cooling means (11) for pa

This invention relates to UV dryers and provides an ultraviolet dryer wherein a UV lamp (2) is supported in a reflector housing (1), said housing including a reflector body member (10) having a reflective surface adjacent the lamp (2) and other surfaces spaced therefrom and cooling means (11) for passing a cooling medium over said other surfaces to cool said body member, wherein the reflective surface comprises a thin, flexible strip of heat-conductive sheet material (12) bearing dichroic film, said film exhibiting a high degree of transmission towards infrared radiation and high degreee of reflection toward UV radiation.

대표청구항 ▼

[ I claim:] [1.] A UV dryer for drying photopolymerisable ink on a web wherein a UV lamp (2) is supported within a reflector housing (1), said housing including a reflector body (10) having curved reflector surfaces disposed to reflect UV light onto a web, characterised in that each of the reflector

[ I claim:] [1.] A UV dryer for drying photopolymerisable ink on a web wherein a UV lamp (2) is supported within a reflector housing (1), said housing including a reflector body (10) having curved reflector surfaces disposed to reflect UV light onto a web, characterised in that each of the reflector surfaces comprises a thin, flexible heat conductive metal strip (12), bearing a dichroic film on one side which is adjacent the lamp and wherein the strip is deformed so that the opposite side is in close contact with said reflector body, said dichroic film exhibiting a high degree of transmission towards infra-red radiation and a high degree of reflection towards UV radiation and said reflector body having other surfaces spaced from said reflector surfaces and cooling means are provided for passing a cooling medium over said other surfaces to cool the reflector body.