| 摘要 |
PURPOSE:To control side etching, provide mechanical strength to a relief and enable minute clear printing by using relief printing composed of a matted polyester film as a support layer. CONSTITUTION:A negative is laid on a glass plate and covered with an about 12mu thick polyester film, and a photosensitive unsatd. polyester resing soln. is squeezed on the film in 700mu thickness with a doctor. A 250mu thick matted polyester film with an about 40mu thick EVA adhesive applied to the surface is then allowed to contact with the photosensitive resin layer as a support film to obtain a photosensitive resin plate. This resin plate is irradiated with ultraviolet rays for 3min from the glass plate side at 50cm distance from a 4kW high voltage mercury lamp, and the unexposed part is removed with an air knife to maunfacture a Mt. Fuji type relief faithfully following the negative and having 700mu relief height and 65 deg. shoulder angle. |
