Cosmetic OEM package material screen printing process analysis

Screen printing process has been widely used in various industries today, almost most of the industries involved in packaging will need to screen printing. Among them, the cosmetic industry is also the use of more, because most of the cosmetic packaging materials need to be applied to the screen printing, whether it is the outer carton or inner packaging bottles, screen printing process is indispensable. So we have a detailed understanding of the screen printing process, the following let the editor to popularize this knowledge.

First, what is screen printing?

Screen printing belongs to the perforated printing, which is known as the four major printing methods together with lithography, letterpress and gravure. Perforated printing includes transcription plate, skeletonized flower plate, spray and screen printing. The principle of perforated printing is: the printing plate (paper film plate or other plates made on the plate base can pass through the ink eyelets) in the printing, through a certain pressure so that the ink through the perforated plate of the eyelets transferred to the substrate (paper, ceramics, etc.) to form the image or text.

When printing, through the squeezing of the squeegee, the ink is transferred to the substrate through the mesh of the graphic part, forming the same graphic as the original. Screen printing equipment is simple, easy to operate, printing, plate making simple and low cost, adaptable. Screen printing wide range of applications common prints are: color paintings, posters, business cards, framed covers, commodity labels and printed textiles.

Cosmetic OEM package material screen printing process analysis

Second, the principle of screen printing

Screen printing consists of five elements, namely, screen printing plate, squeegee squeegee, ink, printing table and substrate. The basic principle of screen printing is: the use of screen printing plate graphic part of the mesh through the ink, non-graphic part of the mesh is impermeable to the basic principle of printing. Printing in the screen printing plate on one end of the pouring ink, scraping scraper in the screen printing plate on the ink parts to apply a certain pressure, while moving towards the other end of the screen printing plate. The ink is squeezed by the squeegee from the mesh of the graphic part to the substrate during the movement. Due to the viscous effect of the ink and make the imprint fixed within a certain range, the printing process scraper is always with the screen printing plate and substrate line contact, contact line with the scraper to move and move, due to the screen printing plate and the substrate to maintain a certain gap between the screen printing plate and the screen printing plate through its own tension and the production of the scraper’s reaction force, this reaction force is known as the rebound force. Due to the role of the rebound force, so that the screen printing plate and the substrate was only mobile line contact, while the other parts of the screen printing plate and the substrate for the detached state. Make the ink and screen fracture movement, to ensure the precision of printing size and avoid rubbing dirty substrate. When the scraper scraped through the entire page after lifting, while the screen printing plate is also lifted, and the ink lightly scraped back to the initial position. This is a printing stroke.

Third, cosmetics processing package screen printing precautions

1, screen printing is generally used as a graphic marking processing process for packaging products, which has an important impact on the image of the product, so the technical aspects of the higher requirements.

2, glass bottle screen printing: in the blank transparent or frosted or spray effect of the bottle screen printing, to choose high-temperature ink, coloring by high-temperature baking and out, will not fade and is not easy to scratch, the color is more subdued, to choose a high-temperature furnace manufacturers for screen printing, the starting volume of more than 5000, 5000 or less according to the 500 yuan / paragraph / color charges, 5000 or more according to the calculation of the 0.1 yuan / color times.

3, in the design should be considered up to not more than 2 colors, out of the film to be out of the negative, text, patterns, lines should not be too thin or too large, easy to cause broken lines or ink accumulation phenomenon, should be proofed to confirm before mass production to avoid color differences.

4, if the frosted glass bottles have misprints can be repolished process and then printed, the processing fee of 0.1 yuan -0.2 yuan / one.

5, round bottles printed in the same color according to a color, flat or oval, etc., according to the number of printed surfaces and printed surfaces of the number of printed colors as the basis for calculation.

6, plastic containers, divided into ordinary ink and UV ink screen printing, UV ink is more widely used, the word and the figure has a three-dimensional sense, more glossy, not easy to fade, can be printed in multi-color effect, the starting amount of print is generally more than 1000.

7, glass bottles and plastic bottles screen printing to version of the fee, such as new specifications for packaging bottles and screen printing plant without this corresponding fixture to charge fixture fee, but can do a certain amount of screen printing to offset this cost, such as business amount of more than 20,000 can be exempted from this fee, the situation of the various manufacturers have different conditions, the general screen printing screen plate fee of 50-100 yuan / a fixture fee of 50 yuan / a. The screen printing plate fee of 200 yuan / a fixture fee of 50 yuan / a fixture fee. Stamping plate fee of 200 yuan / one.

8, batch screen printing before sampling, confirm the effect of graphic screen printing after production, after confirming the production adjustment cycle of 4-5 days, depending on the difficulty of screen printing and the number of different.

9, usually screen printing factory has hot stamping, hot stamping and other processing technology, screen printing by hand, mechanical screen printing, pad printing and sticker pad printing and other technologies.

10, in the production of the use of screen printing bottles, should pay attention to avoid excessive handling or collision, to avoid abrasion silkscreen effect, production, pay attention to the choice of reasonable sterilization.

11, screen printing costs as low as 0.06 yuan / color, but need to pay special attention to screen printing is not good enough to achieve the desired design effect, it is possible to scrap the whole batch of containers. Silkscreen can be printed according to the percentage of spot-color screen printing can be achieved in rich colors.