Common sense of cosmetic tube printing
Cosmetic tube printing is a printing method on metal tubes (tin-lead alloy, aluminum, etc.), laminated tubes, plastic tubes, etc.
The printing ink for metal tubes should not only have heat resistance and light resistance, but also because the tubes will encounter squeezing and tortuous when in use, and often encounter water and moisture, the ink should also meet the above conditions. The materials inside the tube are different, and the ink must also be able to resist the erosion of these materials.
Laminated tubes have the respective advantages of the two materials of the sharp angle. Laminated synthetic tubes make it a tube with both advantages. For example, a laminated tube made of aluminum foil and plastic film has moisture resistance and weather resistance. Advantages: It can be printed and then laminated, so that the graphics and text are in the plastic film, and the appearance is very beautiful. At the same time, it can be processed and formed after printing. The method of first forming and then curved printing is changed, so that the photogravure method can be adopted. Carry out plastic printing, laminating and forming into a laminated tube.
Because of the poor adhesion of plastic ink in plastic tube printing, surface treatment is required for printing. At present, foreign countries use the hot-press transfer method to print pictures and texts on transfer paper. The color sequence is the opposite color sequence of color printing. Then a layer of material that can produce adhesion under heat treatment is coated on the printing surface, and then the The transfer paper with graphics and text is in contact with the curved surface, and the transfer is carried out under heat and pressure.