The production and printing of self-adhesive labels generally have strict requirements. However, the printing quality of the self-adhesive labels printed by many enterprises is not satisfactory, mainly because the printed labels meet the basic requirements, so what are the process requirements and key points of printing self-adhesive labels?
1. The point to be made is that the size deviation of self-adhesive products should not be too large. You must carefully design your own self-adhesive products, and the error must be controlled within 0.5MM. Row.
2. The symmetry of the adhesive coating directly affects the separation force between the logo and the backing paper, and the amount of separation force directly damages the mold cutting and waste discharge and the speed of the equipment . The separation force also determines the bid of the logo, the application state. In addition, the amount of glue dispensed can also compromise the leakage of the internal pores of the raw material. Therefore, when purchasing dry glue materials, careful inspection should be made to select raw materials suitable for the amount of glue dispensed and the amount of silicon coating.
3, pressure and even the color of ink should have certain specifications. The printed text should be very clear, the parts that cannot be printed without printing when printed, and very accurate. Therefore, dry offset printing manufacturers generally must design specific printed text formats in advance, including specific text formats and ink colors.
4. The printing layout should also be well designed, and the layout should be consistent with the specific design product. If overprinting is required, the error and accuracy of overprinting should be controlled within 1.5MM.
5. The uniformity of the material thickness on the surface of the backing paper is not only related to the characteristics of packaging and printing, but also a key criterion for determining the uniformity of die cutting and the speed of waste discharge. If the thickness of the material on the surface of the backing paper is not uniform, the labeling machine cannot produce quickly.
6. The self-adhesive printing manufacturer should make the product clean and beautiful, that is, there will be no adhesion, shadow or even dirt on the surface, and the cutting should be perfect. The printing surface should be clean, and the font should not be blurred or malfunctioning.
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