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Cosmetic Tube Printing - First Forming And Then Printing

Update time : 2023-04-21 11:30:47

The printing method of cosmetic tube is closely related to the tube production process. It is mainly divided into two categories: one is first forming and then printing, mainly used for extruded plastic cosmetic tube. The printing method is mainly convex glue and screen printing. The other type is first printing and then forming. It is mainly used for full -plastic laminated tube ( PBL TUBE ) and aluminum -plastic laminated tube ( ABL Cosmetic TUBE ).

After the cosmetic tube is formed, the printing method can choose convex glue or screen printing. At present, the convex glue printing occupies the main position, and the screen printing has become an indispensable replenishment method for convex glue printing with its distinctive characteristics.

(1) convex glue printing
In cosmetic tube printing, the convex printing technology concentrates the characteristics of convex and glue printing. The printing effect is good. Some people vividly call it "Dry Offset" and "Letter Set" abroad. During monochrome printing, the maximum number of mesh cables can reach 1751pi; when the multi -color stacked printing, the number of mesh cables can reach 100 ~ 110LPI. At present, eight -color printing machines have appeared in the international cosmetic tube printing sector, which meets the specific requirements of some customers.

The cosmetic tube map version of the tube is not used in the water roller. It uses a paste with high viscosity. The ink roller transfers the ink from the ink fight to a set of rubber rollers. Through the string of ink rollers, the ink is evenly distributed on the ink roller, and the ink roller is transferred to the convex version of the printing roller. The raised graphic part is about 0.50mm higher than the blank part. Then the ink on the printing version was transferred to the rubber cloth of the rubber drum, and then transferred to the surface of the composite tube.

The printing version of the convex rubber printing is composed of the version of the base and the sensitivity of the sensitivity. The version of the version of the metal printing version is slightly higher. Even the resin version is printed, the printing resistance can reach 150,000 to 200,000 tube. At present, cosmetic tube printing generally uses a four -color hose printing machine, and its basic composition is shown in the figure.

The machine consists of a four -color printing roller, four -color ink -informed device and a rubber roller.

When printing, insert the cosmetic tube into the core axis of the rotary plate, and the tube can be rotated on the core axis. When the rotation is rotating, the rubber cloth on the rubber drum and the surface of the hose are exposed to print the printing pressure, and the graphic on the printing version can complete the multi -color printing through the transfection of the rubber cloth in order. After printing, pull the hose out of the core shaft to get the dried device for drying.

By adjusting the distance between the center of the turntable and the center of the rubber roller or the thickness of the pads of the rubber cloth, the thickness of the rubber cloth can be used to get reasonable printing pressure. In addition, the core shaft should meet a certain accuracy requirements, and the cooperation between the core shaft and the inner diameter of the hose is interchangeable.

The printing plates used are generally used as the layout of zinc and aluminum plates. It is made of convex plates through the renewal version of the version, and the resin convex version can also be used.

If the cosmetic tube printing machine uses an automatic conveyor system, the printing speed can reach 150 / min. If it is connected to the automatic packing machine, that is, from the supply of materials to the sending of the product to achieve automated production of hose to meet the needs of large -scale production.

On the automatic production line consisting of a printing machine, extrusion machine, head injection machine, and film cover, the hose molding and printing can be completed at one time, and the production speed reaches 100 pieces / min. In addition, the cosmetic tube printing machine is generally equipped with the light units, and the UV ink and UV optical oil are used to achieve high -speed production of printing and upper light.

The production line can also be equipped with an automatic detection device. Among them, the camera device stores the image information of the standard product, and then scan the printing screen of each cosmetic tube. Compared with the storage standard information, it automatically makes the product or whether the product is qualified. Qualified products are removed to ensure that the quality of cosmetic tube printing is within a stable range. Compared with the screen printing, the printing cost of convex glue printing is relatively low and widely used.

(2) Silk Screen Printing
The unique online version can be applied to various ink, which can achieve color cosmetic tube printing with a variety of special effects, such as pearl light and metal ink printing. The thick ink layer of the screen printing can effectively cover the colorful luster of the cosmetic tube itself, especially the deep color hose printing shows a strong color effect.

The surface of some cosmetic tube products is modified PE material, which has a soft touch. After using silk mesh printing, it can meet the requirements of wear resistance. Silk -screen printing is fast and the equipment debugging time is short. It can print qualified products in a short period of time, which meets multiple and small batch hose printing services. For some cosmetic tube that are frequently replaced with design patterns, screen printing is the most applicable.
The development of the screen printing process has enabled the cosmetic tube network printer to develop in a fully automatic direction. From the front -end feeding device, to the UV -net printing unit, and then the hose is packed directly to achieve fully automatic printing production.

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