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The production cost of gravure is high and the production cycle is long. If it is not used and stored in place, such as bumps, corrosion, oxidation, etc., it will cause the printing plate to not be reused, which will affect the quality of the printed product and the delivery time of the product.
1. Before printing, first of all, according to the gravure trial printing sample provided by the plate-making factory and the standard sample provided by the customer, check whether the graphic content of the gravure cylinder matches the printing effect. Before using the machine, wipe the anti-rust oil on the plate cylinder clean, and then carefully check whether there are bumps and hourglasses on the plate surface to prevent the printing cylinder from wasting due to accidental knocking.
2. When printing, install the squeegee blade according to the normal printing speed. Because the squeegee holder can move back and forth to carry ink, the intercepted squeegee blade is generally 10 to 20 mm longer than the plate cylinder to scrape the ink and prevent excess ink on both sides of the plate cylinder from printing on the substrate. Adjust the distance between the scraping blade and the supporting blade to 4-6mm, the supporting blade is 10mm away from the blade holder, and the blade pressure is preferably 2.5-4.0kg.
3. In the printing process, if there is light screen color (that is, highlight ink) that is difficult to transfer, you can appropriately adjust the angle between the squeegee and the gravure, and reduce the printing viscosity of the ink, shorten the plate cylinder and the impression rubber roller. The distance between the contact point and the contact point of the plate cylinder and the doctor blade.
4. The plate cylinder should be kept indoors, and a separate plate house should be established. Keep the room dry and ventilated, keep the room temperature at room temperature, and the humidity should be below 65%. corrosion.
5. After printing, use the solvent to thoroughly scrub the ink on the plate surface, both sides of the plate and the plug of the printing plate to avoid the ink from drying up and clogging the net hole, and the failure to block the ink on the next printing block will occur. If the ink on the shaft head dries, it is also easy to bring a lot of inconvenience to the plate-making process. During the printing process, the ink skin and ink sticks are deposited in the ink tank, and are finally sandwiched between the squeegee and the printing plate after the ink pump is circulated, which will also cause printing failures such as "knife line", which will be more serious. Injured gravure.
6. Due to the low production price of hollow gravure plate cylinders, many printing manufacturers use hollow plate cylinders, but the hollow plate cylinders have low overprint accuracy, and it takes time and effort to get the upper and lower plates. When disassembling the hollow version cylinder shaft, you must use a special wrench to gently unload. You must not directly hit the shaft head with a blunt tool such as a hammer or a copper rod to avoid deformation and misalignment of the positioning bolt near the shaft head under the blunt tool. In addition, when the hollow plate cylinder or plate changing shaft is applied, a layer of butter must be evenly applied to the sealing sleeve or plastic rubber pad to prevent the ink from soaking into the printing plate for a long time and causing corrosion inside the plate cylinder.
7. During the process of transporting the plate cylinder, the operator is best to wear gloves. The dirt on the surface of the printing plate should be wiped off immediately after the transport. After the surface of the printing plate is dry, apply anti-rust oil (such as engine oil or kerosene) to save.
8. When changing the version or carrying, wear work clothes, and do not allow tool items (such as pens, sandpaper for printing, or toothpicks, etc.) in the coat pocket. It is not appropriate to wear watches during operation. Always check clothes buttons and zippers to prevent The picture of the plate cylinder is peeled off and cracked.
, The business will make a proofing list according to the products required by the customer, and the proofing list will indicate the purchased materials and production methods;
2. Purchase materials according to the proofing list; if there is a LOGO production
3. According to the proofing sheet and the design drawings or samples provided by the customer, the board room master will produce the paper grid. The paper grid is the carrier of the size of each part of the bag and the materials used;
4. Cut out the material according to the paper grid, and have a good structural sample of the caravan parking space;
5. The board room master and the business review the structural samples, and after communication, determine the revision plan;
6. According to the modification plan, the prefabricated house will be modified in terms of paper format/object collocation/process modification, etc., and finally make a model;
7. Take a photo to show the new model to the customer, confirm it, OK, and send it to the customer.
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