Post-printing process refers to the surface treatment of printed products after they are completed. Surface processing is to improve the aesthetics and quality of packaging. Now let's talk about the twelve post-press processes that make the packaging instantly tall.

1. Laminating

The film is a transparent plastic film applied to the surface of the printed matter by hot pressing. It is smoother and brighter, and the colors of the graphics are more vivid. Processing technology such as waxing; molding processing technology. Laminating makes the surface of printed matter wear-resistant, folding-resistant and chemical-resistant. However, because plastic films are non-degradable, it is difficult to recycle and easily cause pollution. Therefore, the plastic coating process should be used with caution when glazing can be used instead.

2. Hot stamping

Hot stamping, also known as hot stamping, is to make the pattern or text that needs to be stamped into a convex plate, and by using a certain pressure and temperature, various aluminum foils are printed on the substrate, showing a strong metallic light So that the product has a high-grade texture. At the same time, aluminum foil can protect printed matter because of its excellent physical and chemical properties. Therefore, the hot stamping process is widely used in modern packaging printing.

3. Glazing and waxing

The glazing is to apply or spray a layer of colorless transparent paint on the surface of the printed matter, the gloss of the brush, and the waterproof and oil-proof effect on the packaging surface. The product has bright luster and plays a very good barrier function. To make it a glossy film, to increase the printing wax is to apply hot melt wax to the wrapping paper.

4. Bump embossing

Concavo-convex embossing is a special method for decorative processing of printed surface. It uses a concave-convex mold to plastically deform the printed substrate under a certain pressure, and then artistically processes the printed surface. The various embossed embossed graphics and patterns show patterns with different depths and shades, with obvious relief, which increases the three-dimensional impression and artistic appeal of the printed matter.

5. Die-cut indentation

Die-cutting indentation is also known as die-cutting, buckle, etc. When the packaging printing carton needs to be cut into a certain shape, it can be completed by a die cutting and creasing process. Die-cutting is a process in which steel blades are lined up (or carved with steel plates), frames, etc., and the paper is rolled and cut into a certain shape on the die-cutting machine. The hollow part of the main display surface is obtained by the die-cutting process. Personalized decoration throughout the package. Indentation is the use of steel wire to make marks on the paper by embossing or to leave grooves for bending.

6, bronzing

Gold, silver, laser gold, bronze gold, etc., generally stamped with gold or silver after glued; there must be alignment lines for filming; stamping effects are various, but according to the base material of the stamping, it is also classified as bronzing paper, hot stamping Flannel of hot plastic.

7, local UV process

It is a screen printing process. By applying UV varnish on the surface of the carton to enhance the colorful effect of printed products.

8.Freezing snowflakes

The freezing point snowflake effect is a kind of fine sand and hand feeling formed on the surface of printed products after the silk screen of ink is printed on gold cardboard, silver cardboard, laser cardboard, PVC and other substrates after being irradiated with UV light and cured by UV light. Delicate effect. Because it shows a thin layer of snow or ice on the surface of the printed product, it is commonly known in the industry as "snowflake" (larger pattern) or "freezing point" (smaller pattern). This process has the characteristics of fine patterns, strong three-dimensional sense, luxury and elegance, and is widely used in tobacco and wine boxes, calendars, gift box packaging or other exquisite prints.

9, reverse matte

The reverse matte process is a new type of printing process that has appeared in the past one or two years. It requires several special primer or varnish treatments to complete it. Some people also call it the reverse polish process, which is regarded as a local A new process of light. The process is to print the printed product in the normal color sequence, and then use the offset printing on-line (or offline) method to print a layer of special primer on the local area that does not need to highlight high brightness after the ink is completely dried or cured. After the primer is completely dry, apply UV varnish to the entire printed surface in a full-plate manner. In this way, a cohesive reaction occurs in the area where the varnish and the primer contact the U V, forming a small granular ink film, forming a matte or matte matte surface; while in the U V varnished area without the primer, a high-gloss mirror surface is formed. Eventually, the surface of the printed product forms locally high gloss and locally matte low gloss areas. Two completely different gloss effects achieve high-contrast effects in partial images, embellishing and accentuating graphics with glossy mirror surfaces.

10. Embossed bronzing

This process is a hot stamping method that shows a more metallic and three-dimensional feeling through the change of the hot stamping version. By changing the unevenness of the relief pattern, the graphics and texts have a metal relief-like texture, so that the bronzing graphics and text jump out of the plane, bringing a stronger visual impact.

11.Laser transfer

It has gorgeous visual effects and can effectively improve the grade of packaging. This process can print full or partial transparent laser effects on ordinary paper with smooth surfaces, which has changed the past. The processing method of the laser effect can be demonstrated by compounding the proprietary laser film on the surface, and the laser pattern can be flexible.

12. Photolithography paper

A very high-tech paper material that combines advanced technologies such as partial embossing, holographic laser anti-counterfeiting, vacuum aluminum plating, paper-plastic composite slitting, and sleeve printing, which has changed the situation of the previous single laser pattern effect, and the paper is gorgeous. The unique visual effects and unique anti-counterfeiting functions not only make it impossible to duplicate plagiarism, but also facilitates consumers to visually identify authenticity.