Improving printing quality is a comprehensive process involving multiple factors. The following are 13 key points to improve printing quality:
1. Understand the requirements of the work order
Key points: After receiving the printing work order, you must carefully understand the specific requirements of the work order, evaluate the difficulties and key points of printing, and formulate measures to prevent problems.
Implementation: Special personnel should be arranged to print important printed materials such as covers, dust jackets, shells, backing paper, and packaging boxes to ensure that every detail meets customer requirements.
2. Choose the right ink
Key points: Understand the performance of the ink used, and select inks and auxiliary materials with different performances according to the requirements of the printed materials (such as high-end, mid-range, and low-end customer printing products), paper characteristics, and post-printing process requirements.
Implementation: Ensure that the ink quality is stable and meets the printing standards.
3. Strict first piece confirmation
Key points: After the captain installs and adjusts the plate, he must check according to the first piece confirmation form. After printing about 300 sheets, he must find the printing supervisor to sign the sample before mass production.
Implementation: Two copies of the first signed sample should be made, one for the first print confirmation sample and the other for color tracking.
4. Strengthen process monitoring
Key points: If there are any questions during adjustment, you must report to the printing supervisor or superior, and it is not allowed to start printing without authorization. The captain, printing supervisor or printing person in charge on duty, and QC inspectors should strengthen the monitoring of the quality and color of the printed materials.
Implementation: Ensure that all parameters are stable during the printing process and adjust the deviation in time.
5. Keep important printed materials
Key points: When printing magazines, pictorials, trademarks, LOGOs, advertising pages and other key elements, keep one more copy to facilitate color adjustment of each issue in the future.
Implementation: Establish a special file and organize the important printed materials of each issue.
6. Control the water supply
Key points: During printing, strictly control the water supply of the layout to reduce the phenomenon of smearing the plate and ensure uniform ink color.
Implementation: Check the water supply system regularly to ensure the water volume is appropriate.
7. Check the characters continuously
Key points: When the machine prints a long version, personnel must be arranged to check the characters continuously, focusing on the details such as small dots, small text, and small dots of strokes.
Implementation: Ensure that every word and every pattern is clear and correct.
8. Mark defective products
Key points: If products with inconsistent ink color are found during the printing process, they should be marked or removed to prevent defective products from flowing into the next process.
Implementation: Use small paper strips or other marking tools for marking.
9. Do a good job of keeping samples
Key points: After the customer and the printing supervisor sign the sample, confirm that the product with the best ink color should be marked for keeping samples to ensure that there are no quality problems with the sample prints.
Implementation: Use a large-headed pen to mark the sample in the form of a box.
10. Strictly check the sample
Key points: When marking the sample, check whether the color meets the proofing standard, and there is no ink skin, no water drying, no dragging, etc.
Implementation: Ensure that the image and text are registered, the front and back are consistent, and the layout is clean.
11. Pay attention to the fine-tuning of the printing plate
Key points: Pay attention to the change of ink color when fine-tuning the printing plate during the printing process. Products with color deviation cannot be kept as samples.
Implementation: Check the ink color in time after fine-tuning to ensure color consistency.
12. Strengthen equipment maintenance
Key points: The operating status of the equipment has a direct impact on the printing quality, so equipment maintenance should be strengthened.
Implementation: Regularly check the oil level in the oil tank, the lubrication of the bearings and the rotating parts of the equipment to ensure that the equipment is in good condition.
13. Keep the environment stable
Key points: Keeping the temperature and humidity of the printing environment constant is very important to ensure the stability of the ink color.
Implementation: Adjust the temperature and humidity of the factory according to seasonal changes to ensure that it is within the appropriate range.
Improving printing quality requires understanding the requirements of the work order, selecting appropriate inks, strictly confirming the first piece, strengthening process monitoring, retaining important prints, controlling the water supply, checking the characters continuously, marking unqualified products, doing a good job of keeping samples, strictly checking the samples, paying attention to the fine-tuning of the printing plate, strengthening equipment maintenance, and maintaining a stable environment. The implementation of these measures will help improve printing quality and meet customer needs.
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