How To Detect Quality Of Self-adhesive Label Materials

In order to avoid as much as possible the printing failure of the self-adhesive label caused by the quality problem of the self-adhesive material itself, it is necessary to carefully check the appearance quality of the self-adhesive label material before printing, so that it can be timely before printing Discovery of defects that may cause quality problems in the printing process.
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How to detect the quality problems of self-adhesive label materials, the following are five methods to detect the quality problems of self-adhesive materials.
1. Check whether the edges of the self-adhesive materials are stuck, whether the bottom paper is missing silicon. The edges of the self-adhesive materials are stuck or some areas on the bottom paper are missing silicone oil, which will cause the top paper to break during the printing process. normal production. Therefore, before printing, take a piece of adhesive material about 1 meter long and peel it off with your hands to see if there are any parts on the edges or other parts that cannot be peeled smoothly and uniformly.
2. Check whether the self-adhesive material has burrs. The edge of the self-adhesive material is smooth and undamaged, which is the basis for ensuring the printing quality of the self-adhesive label. Therefore, you must carefully check the distribution of the self-adhesive material on the reel before printing. Whether there are burrs on the cutting edge, whether it is caused by improper storage and transportation.If it is damaged, roll down the roll of self-adhesive material 4-5 times, and carefully check the cutting edge.
3. Check whether there are cracks on the self-adhesive material. When the self-adhesive material is slit, if the cutting tool is not adjusted properly or the blade is not sharp enough, cracks will appear on the surface or bottom paper of the self-adhesive material.
Cracks appear on the edge of the dry glue material. Therefore, even if printing has already started, the above problems cannot be ignored.
4. Check whether the slitting end surface of the reel adhesive material is straight and whether the rewinding tightness is consistent. If the slitting end surface of the reel adhesive material is uneven, it will not only affect the registration during printing, but also due to the die cutting position It is difficult to discharge waste due to changes; inconsistent elasticity during rewinding will cause printing. Changes in paper force during brushing and uneven tension will also cause printing quality problems.
5. Before using different types of self-adhesive labels, it is important to test the type of adhesive to see if the adhesive is a self-adhesive, heat-sealed adhesive or glue-coated paper. Some adhesives react chemically with certain substances. For example, self-adhesive labels used as signs can contaminate certain special fabrics under certain conditions. Some labels that require short-term tack will have long-lasting tack under exposure conditions. On the other hand, some labels that require long-lasting tack will lose tack on certain surfaces.

How To Detect Quality Of Self-adhesive Label Materials?

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