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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.

Active Publication Date: 2012-07-18
WUHAN HONGZHICAI PACKAGING PRINTING
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Although the effect of electro-engraved concave-convex copper bottom mold is good, it is expensive and the cost is high, especially for some short-term products with a short construction period and small quantity, it has a great disadvantage in cost accounting

Method used

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Effect test

Embodiment Construction

[0018] The preparation method of flexible resin plate bottom mold of the present invention comprises the following steps:

[0019] Step A: Exposure—Provide a film sheet (i.e., a negative film) and a flexible resin plate, place the flexible resin plate on top of the film sheet, and make the film surface of the film sheet close to the flexible resin Then place it on the glass plate of the screen printing machine, smooth it with a soft cloth to discharge the gas between the films, and then adjust the parameters of the screen printing machine to determine the appropriate pumping time and The front side exposure of the plate is performed after the exposure time. Specifically, air extraction should be done so that the glass plate, film sheet and flexible resin plate are as flat as possible without air. The exposure uses an iodine-gallium lamp with a power of 3000W for 360-400 seconds. If the exposure time is short, the flexible resin plate is too soft and the strength is not enough...

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Abstract

The invention discloses a method for preparing a bottom die for flexible resin plates, which comprises the following the step of: exposure, namely, providing a film and a flexible resin plate, reversely placing the flexible resin plate above the film, and carrying out exposure on the flexible resin plate for 360-400 seconds by using an iodine gallium lamp with power of 3000W; development, namely, flushing the surface of the flexible resin plate subjected to exposure by using water at a temperature of 30-35 DEG C under the pressure of 5-28MPA, wherein the flushing time is controlled within 12-15 minutes, and a part (0.2-0.3 mm) of a resin layer base is kept on the whole surface of the flexible resin plate; drying, namely, putting the plate subjected to development into a drying oven to bake for 4-5 hours at a temperature of 50-60 DEG C; and post-exposure, namely, after the plate is completely dried, putting the plate without being covered with any object under an iodine gallium lamp with power of 8000W for 130-150 seconds, then carrying out fast cooling on the plate for 2-3 minutes in a refrigerating drying tunnel. The method disclosed by the invention has the advantages that the plate is low in cost, environment-friendly in manufacturing process, and high in print resistance rate.

Description

technical field [0001] The invention relates to a method for preparing a bottom mold of a flexible resin plate. Background technique [0002] With the improvement of people's living standards, the requirements for the appearance of product packaging are getting higher and higher, especially for tobacco and alcohol packaging, which require beautifully designed and printed packaging boxes, so as to improve the grade of products and increase the attractiveness and quality of products. reputation. Embossing concave-convex graphics on the cardboard surface of tobacco and alcohol packaging is a better design method, which can not only strengthen the three-dimensional effect of the packaging graphics, but also effectively improve the refraction effect of light, giving people a high-end, atmospheric feeling. . To press concave-convex graphics on the cardboard surface of tobacco and alcohol packaging boxes, a pair of concave-convex molds (including a relief plate and a bottom mold)...

Claims

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Application Information

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IPC IPC(8): G03F7/00
Inventor 王建军何建平丁卫陈锦新詹秀芳
Owner WUHAN HONGZHICAI PACKAGING PRINTING
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