What is packaging technology?
Packaging printing technology refers to the general term for printing graphic information on packaging materials, packaging containers and labels. The main purpose of packaging printing is to print decorative patterns, patterns or text on the packaging to increase the attractiveness or descriptiveness of the product, thereby conveying information and increasing sales; for more information about packaging bag technology, please continue reading below.
With the development of the times, packaging bag printing technology has become more and more mature. Among them, the more commonly used printing methods are: spot color printing; matte lamination; UV; hot stamping; embossing, etc.
1. Spot color printing: Spot color printing refers to the use of a special ink to print the color during printing, which is brighter than the color mixed with four colors. Commonly used are special gold and special silver. There are many spot colors. Refer to the Pantone color card. Spot colors cannot achieve gradient printing. If necessary, four-color printing is added.
2. Matt lamination: After printing, a transparent plastic film is applied to the surface of the printed product through hot pressing to protect and increase the gloss, and the surface is matte. The most basic process for paper box surface treatment is similar to varnishing, but laminating can enhance the hardness and tensile strength of paper.
3.UV: The parts of the printed matter that need to be highlighted are locally varnished to make the local pattern more three-dimensional. Printing with matte laminating process has no effect when gloss laminating.
4. Hot stamping: Hot stamping uses the principle of hot press transfer to transfer the aluminum layer in electroplated aluminum to the surface of the substrate to form a special metallic luster effect. The printing materials are gold, silver, red, green, blue and other colors, but hot stamping can only be monochrome. There are many kinds of colors, but not all colors are available in the market.
5. Embossing: A set of concave and convex templates corresponding to the yin and yang of the image and text are used, and the substrate is placed between them. The embossed concave and convex images are pressed out by applying greater pressure. All kinds of paper thickness can be used, but cardboard cannot be embossed.
How should we choose different packaging bag processes?
Laminating, there are matte laminating or gloss laminating. The laminating paper bag is more arbitrary, moisture-proof and deformation-proof. Hot stamping is characterized by highlighting the metal texture, and is generally used to highlight the key information or brand logo on the package. Hot stamping paper has a rich variety of colors, including gold, silver, blue, red, etc., which can be selected according to needs. The local UV process is mainly used for pictures or logo text on gift bags covered with matte film, which can form a strong contrast with the look and feel of the matte film to achieve the purpose of highlighting the key points. Therefore, we can choose the appropriate packaging process according to the material of our own packaging bags and the desired effect.
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