Description
The outer packaging of cosmetics refers to the outer box packaging part of cosmetics. Its composition includes paper material, surface technology, local detail technology, color printing, etc. The following is an integration of the more common outer box packaging related processes! On the outer box paper, different processes can be used to create patterns to make the outer box beautiful and high-end!
Surface treatments include: glossy glue, matte glue, PET film, glossy oil, polishing, matte oil and other processes. According to different designs, combined with surface treatment, because each surface treatment has different styles, if there are requirements for environmental protection, it is recommended to use UV treatment.
① Surface treatment process-lamination
Lamination is also called "laminate", "mounting glue", "filming", etc. It refers to the use of transparent plastic film to be hot-pressed and pasted on the surface of printed matter to protect and increase gloss. It is one of the common post-printing processing technologies for paper printed matter. It is to heat and pressurize the plastic film and paper printed matter together to form a paper-plastic integrated product.
After laminating printed products, because there is an extra layer of thin and transparent plastic film on the surface, the surface becomes smoother and brighter, which not only improves the gloss and fastness of the printed products, but also prolongs the service life of the printed products. At the same time, the plastic film also plays a protective role such as moisture-proof, waterproof, anti-fouling, wear-resistant, folding-resistant, and chemical corrosion-resistant.
There are generally two types of lamination: glossy film and matte film. ① Glossy film, the printed images and texts of the products are brighter and more three-dimensional, especially suitable for the packaging of green food and other products, which can arouse everyone's appetite and consumption desire. ② Matt film, the laminated products will give consumers a noble and elegant feeling. Therefore, the packaging and printed products after lamination can significantly improve the grade and added value of the product packaging.
② Surface treatment process - VU
UV process printing effect process is a printing process that is dried and cured by ultraviolet light. It needs to be matched with photosensitizer ink and UV curing lamp. UV ink has covered offset printing, screen printing, inkjet printing, pad printing and other fields. It is to apply a layer of varnish (gloss, matte, crystal inlay, glitter powder, etc.) on the printed pattern. The key is to increase the brightness and artistic effect of the product and protect the surface of the product. It has high hardness, corrosion resistance, friction, and is not easy to scratch. Some coated products are now changed to UV, which can meet environmental protection requirements, but UV products are not easy to bond, and some can only be processed by local UV or polishing.
[Auxiliary process]
Auxiliary processes include concave and convex, embossing, embossing, local UV, local embossing, local hot stamping, laser, etc., but not too many, it is recommended to adopt one or two.
① Embossing (concave and convex embossing)
Embossed is a common printing process. The embossing process is a process that uses a concave and convex mold to produce plastic deformation of the printed product under a certain pressure, thereby performing artistic processing on the surface of the printed product. After embossing, the surface of the printed product shows different patterns and textures with different depths, with a significant relief three-dimensional sense, which enhances the artistic appeal of the printed product.
②Hot stamping
Hot stamping, also known as hot pressing printing, is to make the pattern or text to be hot stamped into a convex plate, and with the help of a certain pressure and temperature, print various aluminum foils on the substrate, showing a strong metallic light, giving the product a high-end texture. At the same time, because aluminum foil has excellent physical and chemical properties, it can protect the printed matter. Therefore, hot stamping technology is widely used in modern packaging printing.
Cosmetic packaging has always had high requirements for hot stamping technology. In this regard, it is not only necessary to cooperate with high-performance equipment, but also has certain standards for gold paper. The gold paper imported from the UK and South Korea can meet the requirements in terms of color diversity and quality; the hot stamping version is mainly copper plate. The copper hot stamping version has the characteristics of high hot stamping times, no deformation, and no burrs. For some high-quality paper boxes, we now use the copper electric engraving version that is formed by hot stamping on cigarette box packaging. After hot stamping, it is like engraving on paper, which significantly improves the packaging quality, but the cost is higher than that of general copper and zinc plates.
③Laser transfer
Laser printing is a printing technology that uses laser ink (with metal optical color-changing anti-counterfeiting ink) and advanced laser printing technology to screen print or roll print laser ink on various flat and smooth materials. The printed product can show different colors as the viewing angle changes, has obvious dynamic color-changing effect, and can produce rainbow ring effect under spotlight, which can effectively improve the packaging grade. This process can print full or partial transparent laser effects on ordinary paper with smooth surface, changing the previous processing method that can only use laser paper printing or composite proprietary laser film on the surface of paper to show laser effect, and can make laser patterns flexible and changeable.
④Freezing point snowflake
The freezing point snowflake effect is a kind of fine sand feeling and delicate feel formed on the surface of the printed product after the ink is screen printed on gold cardboard, silver cardboard, laser cardboard, PVC and other substrates, wrinkled by ultraviolet light and UV light curing. Because it presents a thin layer of snow or ice-like effect on the surface of the printed product, it is commonly known as "snowflake" (larger pattern) or "freezing point" (smaller pattern) in the industry. This process has the visual characteristics of fine patterns, strong three-dimensional sense, luxury and elegance, and is widely used in cigarette and alcohol boxes, calendars, gift box packaging or other exquisite printed products.
⑤ Reverse UV
The reverse glazing process can make the same printed product have both mirror high-gloss effect and matte or hemp-faced non-high-gloss effect, forming a stronger contrast in brightness, so that the glazing can achieve a better effect. At the same time, because the non-high-gloss parts are printed by offset printing, the overprint is very accurate, and the printing accuracy of the high-gloss parts is also guaranteed. In general, reverse glazing solves the key problems existing in ordinary glazing processes, and can achieve the contrast effect that ordinary glazing cannot achieve, which can make the printing effect of printed products better and more exquisite, and the printing quality is taken to a higher level.
⑥ Reverse frosting
The reverse frosting process is a new printing process that has appeared in the past one or two years. It requires several special primer or varnish treatments to complete; some people call it the reverse glazing process and regard it as a new process of local glazing. This process is to print the printed product in the normal color sequence, and then use the offset printing inline (or offline) method to print a layer of special primer in the local area where high brightness is not required after the ink is completely dried or solidified. After the primer is completely dried, UV varnish is applied to the entire printed product surface in a full-plate manner. In this way, a cohesive reaction occurs in the area where the UV varnish and the primer are in contact, forming a small granular ink film, forming a matte or frosted rough surface; and a high-gloss mirror surface is formed in the UV varnishing area where the primer is not printed. Finally, the surface of the printed product forms a local high-gloss area and a local frosted low-gloss area. The two completely different gloss effects achieve a high-contrast effect of the local image, embellishing and highlighting the image and text with a glossy mirror surface.
⑦ Die-cutting and creasing
Die-cutting and creasing is also called pressing and forming, buckling knife, etc. It is a forming process that uses a die-cutting knife to combine a die-cutting and creasing plate (knife plate) according to the pattern required by the product design, and rolls the printed product into the required shape. Die cutting is a process of cutting paper into a certain shape on a die-cutting machine by arranging steel blades into a die (or carving a die with a steel plate), a frame, etc. The hollowed-out part of the main display surface in the middle is obtained by die cutting, becoming a personalized decoration in the entire packaging. Creasing is the process of using steel wire to press out marks or leave grooves for bending on the paper by embossing.