The flat metal sign is mainly a kind of metal sign with […]
The flat metal sign is mainly a kind of metal sign with explanatory purpose by dissolving different colors into the film by using the method of photosensitive exposure, so that it will be displayed on the metal plate through the development method.
The following are the specific process flow and formulas of several frequently encountered metal flat-screen signs (process flow of flat-screen signs):
Flat-lighted aluminum sign: It adopts the method of photosensitive plate making, in which different pigments are put into the film, so that the characters and patterns are displayed on the metal plate, so as to achieve the metal nameplate with explanatory significance.
1) Blanking: The size of the wool is generally larger than the size of the plate (above 5mm), and the surface of the board is smooth and free of pits.
2) Pretreatment: ①polishing ②wire drawing ③treatment④oxidation and other methods.
3) Water sealing: After degreasing and film removal, the processed board should be quickly immersed in water without contact with air.
4) Glue: the configuration of glue. Glue: 200-230g Water: 1000ml, boil for 2 hours to fully dissolve the glue. When the temperature drops to 30-50℃, add 25-30g of photosensitizer (ammonium bibutyrate) and spread the glue evenly on Dry the metal plate for later use.
5) Exposure: The SB750 vacuum exposing machine can be used for photosensitive exposure. After the lamp is 60-90cm and the time is 40-80 seconds, it is developed in warm water for 1 minute and put in the color solution for dyeing.
6) Gloss retention: After the fully dyed brand is dried, apply gloss retention paint with a brush or spray gun (usually use eye brand baking varnish or non-baking gloss retention paint).
7) Cut into.
Flat signs are generally used for indoor appliances, small household appliances and equipment that are not affected by severe weather. The advantages are simple plate making process, fast speed, timely delivery, and low defective product rate. The disadvantage is that it will fade easily after exposure to the sun and rain. Cannot make outdoor signs.