Cutting and plate making of the hottest self-adhes

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Cutting and plate making of self-adhesive

the cutting personnel shall receive the specified self-adhesive materials from the raw material warehouse according to the cutting notice issued by the production department, check their models, and fill in the delivery form. When cutting materials, the cutting size should be correctly calculated according to the roll size (such as 1m and 200m) to ensure the full utilization of materials. During the cutting process, the appearance of raw materials should be strictly checked according to the quality inspection standards, and the cutting error should be controlled within 0.1mm, and the edge removal size should be controlled within 10mm

when the sheet is broken, the material shall be cut in strict accordance with the material specification and quantity required by the material notice. If there are special requirements for the size of the backing paper on the drawing, the size error should be controlled within 0.2mm, the manual breaking error of other products should be controlled within 1mm, and the machine breaking should be controlled within the error range of the equipment

after the quantity of the cut self-adhesive material is confirmed to be correct, the name, quantity, size and material batch number of the product to be cut shall be marked with a film covered paper strip, which shall be attached to the positioning material of the whole batch of materials

the plate making personnel are responsible for signing in the negatives and color samples provided by the design department, and checking the quality of the negatives, including the number of negatives, the identification content of the negatives, the false and solid degree of the edges of words, lines and points, the density of points, the registration degree between color separations, etc. If you want to consider whether you can adapt to the working pressure environment when making!: If the negative is incorrect, the repair sheet or rework sheet shall be filled in and returned to the design department together with the negative. For qualified negatives, the plate maker and the designer shall jointly sign and hand over on the negatives receiving sheet; The negatives that pass the inspection shall be kept clean, classified and stored in a special negatives bag. The cover of the bag shall be marked, including product name, number of negatives, packaging date, lending and return records, etc

the plate maker selects the appropriate mesh and size of wire and frame for stretching according to the fineness of the product. The tension is generally controlled at 6 ~ 8kg/cm2. The plate can be removed from the stretching machine after being placed for at least 12h after brushing, and then the stretching time and tension value are marked on the edge of the plate. Before printing, seal all sides with sealing tape and place it for 3 ~ 4 days (at least 24h)

before scraping, degrease and roughen the new version, then pour the photosensitizer into a glass in the dark room according to the photosensitive glue preparation instructions, add 80 ~ 100ml of water, and stir it fully. After the photosensitizer is completely dissolved, filter it through a piece of 200 mesh silk, pour it into the latex, mix it fully with bamboo chopsticks, cover it and place it in a cool place, and use it after the bubbles disappear

generally, 3 times of glue scraping is selected for products with fine lines and 2 times of glue scraping for products with dots. Put it flat in the oven after scraping, and place it at no more than 40 ℃ for 0.5h until it is completely dried

before printing, wipe the front and back of the negative with cotton ball dipped in alcohol, repair the light transmission point, and the printing table should be clean and free of dirt. The selection of edition requires that the distance between the pattern and the border shall not be less than 15cm. Under the safety light, adjust the angle of most lines and wires on the negative, and the point negative should be adjusted to a reasonable angle without moire. After vacuuming, the exposure time is selected according to different graphic contents and different light sources

after exposure, immerse the plate in the developing tank and shake the plate repeatedly for many times until the pattern is clear and visible, and then use a high-pressure water gun to flush it evenly. When all oil supply valves have a large oil output from the oil return pipe, the sample is open circuit. At this time, check the quality of the plate by light, and do a good job of self inspection. It is required that the edge of the pattern is free of sawtooth, clear and transparent, without deformity, the plate is free of moire, small spots are not lost, large spots are not pasted, etc

use absorbent cotton to absorb the moisture on the front and back of the plate, place it flat in the oven, and dry it thoroughly below 40 ℃. After repairing the missing version and checking the quality of the version, paste a label on the edge of the frame, indicating the product name, color, color sequence and printing time. Store it in the finished version storage area by classification, and record the relevant data in the version account, including the area code, layer number and all the contents of the above label. Account arrangement principle: according to customer 5 If the name of the experimental plan rule is not implemented in the factory, all products of each customer are arranged according to the size of the drawing number

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