Problems Needed to be Solved in Packaging and Decoration Prints

Editor's Note: When customers purchase items, the first impression of the product comes from the packaging and printing. The beautiful packaging appearance is undoubtedly a silent salesman and plays an important role in sales. But do you know that a piece of packaging and decorating printed matter still needs to seriously solve the "three major relations" in order to be successful.

"People want clothing and things to be packaged." Packaging and decoration are increasingly valued by people. It not only plays a positive role in protecting and beautifying goods, but also promotes the continuous development of goods. What is important in packaging and decorating is the printing of packaging. For packaging printing to achieve better results, it is necessary to seriously solve the three major relationships of prepress processing, printing process and postpress processing.
A successful packaging and decorating print has brought together the collective wisdom and hard work of designing, printing, and post-press processing workers. Therefore, in order for a piece of packaging and decorating printed matter to achieve the desired effect, it is necessary to have an overall concept of overall consideration from the outset, and it is by no means only concerned with a certain process but without considering the feasibility of other processes. Color packaging is now used more and more, it is based on color reproduction, and color reproduction is based on manuscripts, plate-making methods, printing for a series of interrelated operations. Therefore, in order for the printed matter to achieve the best reproduction effect within the allowable range, it is necessary to take the customer's requirements as the goal, and each process should be separately controlled, so as to formulate a reasonable process route and operation instructions, otherwise, the phenomenon of misconduct will occur. . At present, the packaging printing is still based on offset printing. We must solve the relationship between prepress processing, printing process and post-press processing.

First, the design is the primary link of the packaging print

The design of packaging and decorating printed matter is the basis of plate making, printing and postpress processing. The design draft of a packaging and decorating printed matter is often a combination of patterns, colors and words. The overall design of this product not only needs to see the characteristics of the goods and artistic beauty, but also takes into account the actual effects of plate-making and printing and the completion of post-press processing. Therefore, the design must face two aspects: On the one hand, the design of the product must meet the needs of customers and meet the requirements put forward by customers; on the other hand, it must also meet the actual conditions of our plate-making and printing and post-press processing. Some of our designers think one-sidedly that as much as possible the use of color in packaging prints is as good as possible, and process materials are also quite sophisticated. In design drafts, there are often four-color or six-color offset printing, and hot stamping, embossing, embossing, and embossing. The 18 martial arts are used together. This kind of design did not consider the economy or the technical feasibility of plate making, printing, and post-press processing, resulting in some products that, although the designers thought well in advance, the actual results were poor. So design is a primary link. Designers should make full use of the principle of offset printing and the color reproduction of three primary colors, so as to reasonably use color and reasonably use process materials to produce colorful decorative prints. Of course, we must give designers the opportunity to go out and study regularly, so that they can broaden their horizons, adapt to the domestic and international trends, and constantly improve their own business level and design better and more beautiful products.

Second, plate making is a bridge for design and printing

Platemaking is the bridge between design and printing, and it is the middle part of the entire production process, playing a role in the connection. Platemaking not only correctly reflects the requirements of the manuscript design, but also corrects those parts that do not meet the printing process requirements so that the printing can be reliably carried out. For example, some factories have different types of offset presses, domestic and imported; some products have high overlay precision, and some products have high requirements for dot gains, so it is necessary to target various models in the platemaking process. The technical performance uses different plate making measures. Monochromatic machines must consider the accuracy of overprinting, and multicolor machines must consider overprinting and the resulting sticky and dirty problems. In particular, multicolor machines are more common nowadays. In consideration of the effect of actual printing, a non-color structure platemaking method (ie, bottom color removal method) may be used. For example, when a monochrome machine prints a color separation four-color version, C=95%, M= 88%, Y=88%, BK=75%, and the ink volume corresponding to each color plate is 346%.

When using a multi-color machine, the UCR is used to subtract 20% from the overprinted gray components of the C, M, and Y color versions. The amount of tricolor ink after removal was 306%.

The original traditional four-color ink ink has a stacking amount of 364%. Using the non-color structure technology, the 20% tricolor version of the gray component ink has a stacking volume of 306%. Compared with the original, the total ink volume can be reduced by 40 percentage points. Makes the thickness of the ink on the paper reduced. In this way, in the multi-color printing machine, stickiness can be avoided, which is beneficial to the drying of the ink. At the same time, it is also conducive to the stability of the color and facilitates the control of the gray balance.
In the process of plate making, we must grasp the quality of color-transparent manuscripts. We must not use poor quality manuscripts. In the whole process of plate making, it is necessary to strictly implement the technical measures, and to use the control bar to control the quality of each color version. Do data, standardization, and standardization. It is necessary to create better learning and practical opportunities for the plate-making process operators so that they can truly grasp the skills and skills of the actual operation of each process.

Third, printing reflects the effect of design plate making

After the design plate is printed. Printing is the first line of production that reflects the effects of designing plates. We must treat printing with care. Before the printing, the technical and technical department shall propose corresponding technological measures according to the conditions of the enterprise (including the conditions of raw materials, equipment, environment, and technical personnel). Some export or demanding packaging and printing products should be taken seriously. For operators, we must emphasize the normative operation. Special attention should be paid to inspection of color, lining pressure, implementation of "three flat two small" (drum flat, ink roller flat, water roller level, the surface of the printing plate is small, the contact surface pressure), "four-phase operation method" (diligence掏 ink bucket, diligently wash the blanket, diligently look at the surface water, diligently check the printed sheets) and so on. We must strictly abide by the process discipline and operate according to the quality standards of printed products to ensure the quality of the printed matter, especially the range of good control of color difference, and strictly control the ΔE value of color difference, so that packaging and decorating printing can achieve a rich network of dots, a strong sense of three-dimensional, and ink color. Vibrant effect.

Fourth, post-press processing is the final link

Post-press processing is the final link of packaging and decorating printed matter, which can increase the added value of printed products. Many packaging and decoration products use some special processing methods, such as: anodized aluminum hot stamping, glazing film, embossing die cutting, etc. These processes are called post-press processing in packaging and decoration printing plants. .
Post-press processing is the further modification and embellishment of printed products after printing. It is the application of special techniques on the packaging and decoration prints. Therefore, we cannot wait to look at it. It is the final link. If it is not handled properly, it will be used up to its full potential and cause great economic losses. Therefore, we must attach great importance to it.
There are many processes in post-press processing that are traditional processes, but there are now few successors. This is the case, for example, in the production of the embossed and engraved engravings. We must pay attention to the cultivation of these craftsmanship so that these traditional craftsmanship will continue to flourish. Doing a good job in this area is the current priority. It is necessary to make the post-press processing healthily develop and better serve the packaging and decoration printing.
In summary, to achieve good results in packaging and decorating printed matter, it is necessary to handle the relationship between prepress, printing, and postpress processing. In the specific operation, it is necessary to coordinate the operations of each process, and emphasize the overall process of the entire process. Management, to do a deduction, from the prepress, printing to postpress processing must be the standard process design data as operating guidelines, to achieve data, standardization, standardization, with first-class product quality to make users satisfied, This will enhance the competitiveness of the product in the market.