Design the production process in this way, let your packaging be called and seated!
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For wine box packaging, the structure and prepress design are critical, but the design of the production process and the quality of the wine box packaging are also inseparable. How to make a wine box packaging that makes customers scream and slap, please take a look at the following suggestions.
Printing art
Offset printing can print beautiful multi-level patterns to achieve accurate multi-color overprinting, but color difference is easy to produce between batches, difficult to control; gravure ink layer is thick and full, color is stable; screen printing ink layer is thick, feel good, strong stereoscopic effect, The effect is diverse; the flexo process is flexible, but multicolor overprinting is not its long term. Wine box packaging designers should apply a variety of techniques to enhance their strengths and avoid weaknesses.
For example: our company has 8 color printing machines, 7 color printing machines, and 1 monochrome gravure printing machine. Now we need to produce wine box packaging paper. The process requires printing C, M, Y, K, spot color blue, special Color gold, full version of pearlescent, full version of matte oil, of which the special color blue to print a large area of dark ground, matte oil needs to be completed with a printing unit.
There are three choices in the process design: 1 direct printing with 8-color printing machine; 2 printing with spot color blue with monochromatic gravure printing machine, then printing with 7-color printing machine; 3 printing directly with 8-color machine, but changing the process design For: C, M, Y, K, spot color gold, spot color blue, spot color blue, full version of matte oil (adding offset pearlescent ink to matt oil).
It is not difficult to see that the first choice is not good, because it is necessary to use a special color blue to realize a large area of dark solid, only one unit of the offset printing machine, the ink layer is not thick enough, the hue is not saturated, and the expected effect is not achieved; The two schemes are better, but the process is increased; the third option is the best. Printing the spot color blue through two units not only guarantees the quality, but also reduces the process and equipment investment and shortens the production cycle. However, the general workshop operators and quality control personnel lack the process integration design capability, which needs to be completed by professional designers.
Postpress process
The printing industry often uses film coating to protect printed products, enhance the wear resistance of printed products, and protect the edges and edges of printed products. Nowadays, a new type of coating process using PUR adhesive is introduced, but the matching machine is expensive. At present, the traditional water-based adhesive and oil-based adhesive are mainly used in the industry, but the printed product is easily deformed after coating. The process brings trouble and the loss is high. The screen printing process after film coating generally requires the surface tension of the film to be above 38mN/m. Otherwise, the adhesion of the screen printing ink will be deteriorated, and the ink will be easily lost; the matching requirements for the hot stamping material will be correspondingly improved after the film is coated.
The author believes that the most stupid way to protect the printed products is to cover the film, because this method can protect the edges of the printed products from blushing due to the explosion of paper, but all water-based adhesives and oily adhesives. The agent is not resistant to rubbing, and it will smear when it is attached to the outside of the ink. In contrast, pre-coated film can also improve the wear resistance of printed products, but it is expensive. This requires a multi-process integration design for the print.
Careful analysis, why is there a large number of laminating processes in the traditional printing industry? Because it used to be ordinary offset printing, the ink is not easy to dry, and the ink particles are not soft and resistant to friction, so it is necessary to protect with a film. Nowadays, UV ink printing is dry, the ink particles are relatively coarse and hard, and the wear resistance is far better than the film. Therefore, the UV film can be used to discard the film coating process; if the customer pursues the matte effect, the matte oil can be used instead.
For the problem of corner blasting of the product, the coloring material can be added to the composite adhesive of the composite paper, so that the color is similar to the printing color of the paper; if the color is exploded after the die-cutting, the die-cutting pressure can be adjusted. The width of the trace, modify the angle of the corner to relieve pressure and prevent explosion.
Other considerations
The assembly cost of wine box packaging production accounts for about 30% of the total production cost. Small batches (200-500 pieces) of trial production before mass production can avoid risks and optimize selection of semi-finished parts, die cutters and molds. Greatly improve efficiency and reduce costs.
In addition, after the small batch printing of wine box packaging is completed, different packaging functional testing standards should be formulated according to different customers, products and packaging transportation methods, including aging test, high and low temperature cycle test, vibration test, drop test, and heap. Code testing, packaging and transportation testing, odor detection, heavy metal foreign object testing, etc., to ensure that the wine box packaging fully meets customer requirements.