Method for preparing bottom die for flexible resin plates
A flexible resin and bottom mold technology is applied in the field of preparation of flexible resin plate bottom molds, which can solve the problems of high cost and high price, and achieve the effects of improving the printing durability, being cheap, and enhancing the printing durability.
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[0018] The preparation method of the flexible resin plate bottom mold of the present invention includes the following steps:
[0019] Step A: Exposure—Provide a film sheet (ie, a negative film) and a flexible resin plate, and place the flexible resin plate on top of the film sheet so that the film surface of the film sheet is close to the flexible resin The photosensitive resin film surface of the plate is then placed on the glass plate of the screen exposure machine, smoothed with a soft cloth to exhaust the air between the films, and then the parameters of the screen exposure machine are adjusted to determine the appropriate air extraction time and After the exposure time, the front side of the plate is exposed. Specifically, exhaust air should be as smooth as possible between the glass plate, the film sheet and the flexible resin plate without air. The exposure uses an iodine gallium lamp with a power of 3000W to expose for 360-400 seconds. If the exposure time is short, the ...
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