Which one is good for album printing and what steps should we take? Therefore, this paper starts from the current situation of packaging, analyses the importance of packaging structure design, and discusses the color of packaging.
First, pay attention to the change of water supply
(1) Pay attention to the change of water supply in the initial stage of formal printing. There will be some changes in the amount of water supplied during the trial printing and after entering the formal printing. We must pay attention to the duplication of sample sheets and water carriers, as well as the adjustment of the amount of water supplied to the printing plate.
(2) Pay attention to the change of water supply in the process of formal printing. Alcohol wetting plate should pay close attention to the cooling installation of wetting system, control the temperature of wetting liquid, too little water will make the printing plate dirty; too much water will cause ink emulsification, which will bring a series of problems. For example, the gloss of printing products, paper flexibility and improper overprinting, delaying the dryness of ink, and so on.
2. Pay attention to the change of ink
Watch out for the ink in the ink bucket. Ink from the bucket roller and the bucket scraper gap between the ink, is the weight of the ink and is naturally squeezed out. Therefore, the amount of ink in ink bucket directly affects the output of ink. Therefore, we should pay attention to letting ink bucket adhere to a certain amount of ink. In addition, printing ink has thixotropic properties. If placed in the ink bucket for a long time, the activity will gradually deteriorate. Therefore, the ink knife should be often used to stir in the ink bucket, or the ink mixer should be installed.
(2) Avoid the dullness of the ink on the machine. When the machine stops for a long time, such as eating and resting, the ink on the roller and the ink in the ink bucket will be dull. It can be sprayed with a dull inhibitor to avoid the dull place where the demand is.
(3) Pay attention to the average ink, the density of printed matter varies depending on the amount of water, room temperature and machine speed. It should be checked regularly with the standard sample. Be careful to avoid ink inequality.
(4) Adhering to the pH value of wetting solution, the addition of auxiliary agent in ink can easily affect the pH value of wetting solution. If the pH value increases, the printing plate will become dirty, so special attention should be paid to it.
Packaging in everyday life is mostly a one-size-fits-all form. Packaging design should separate packaging structure design from packaging decoration design. This paper mainly introduces the structure design of packaging. The carton packaging form can be reduced to several fundamental forms, and then, on the basis of which, the structure can be changed or improved.