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The common problems of the application of self-adhesive label paper _ printing equipment
use the non-drying label, mainly lies in two aspects, one is functional, such as the selection of proper surface material, glue right collocation; Second, decorative, such as printing design exquisite or special printing effect, and so on. Here, mainly aimed at the first on the one hand, the functional aspects of application of proper arrangement! To be sure, every problem has a lot of different reasons, here only extracted part of it!
。 Surface material selection of
in thin film material, good without the transparency of PP, PE is often in the product with high requirements for transparency, will give preference to PP label materials. But PP material for two-way stretch processing, resistance in extrusion problems.
B。 Glue reasonable collocation of
tags usually corresponding to three different glue coating method, one is the water glue ( Or latex) For the most popular; Second, hot melt adhesive, suitable for rough surface or low temperature applications; 3 it is solvent adhesive, suitable for all kinds of special use environment ( Such as the environment changes, labeling harsh environment, etc. ) 。
C。 Bubble problems
over the years, have been recognized for bubble caused by electrostatic phenomena and have a lot of solution, in fact, caused by the electrostatic label bubble problem is indeed one of the main factors. And, of course, there is a kind of situation, the bubble will be easy to be ignored, and when a bubble phenomenon improvement will be difficult, the label shape design issues.
D。 Covered the label problems when choosing materials
in recent years, more and more companies will encounter because of a bottle or a hose on the adjustment of the original content, and the need to use the labels are covered. But chooses to cover the label, each company requirements may not be the same, some hope on the surface of the cover stay content, it is difficult to uncover, after some hope to cover others hope to let the consumer after covering the faintly see below original content, and so on.
E。 Labeling when workers' different requirements
in labeling, consideration of viscosity will have several different concepts: the initial viscosity and final viscosity. Initial viscosity is at the beginning of the labeling adhesive performance, and the final viscosity is after the labeling and reach the stable state, the performance of the adhesive. Not all tags viscosity will be stronger and stronger over time, have a plenty of the initial viscosity is strong, but in the end, viscous weak, have a plenty of initial viscosity weak ( Less than regular) , but in the end, good adhesion, and the final viscosity will increase steadily over time within the scope of its best state!
F。 Temperature problems
tag the temperature of the two concepts, one is labeling the temperature, the second is the use of temperature, the label is stick mark environment temperature, need a certain amount of time to achieve tags can be integrated with the posted content, temperature is the label and posted after fusion can application temperature range.