Teach you how to distinguish the quality of self-adhesive anti-counterfeiting labels
一. Selection requirements for self-adhesive anti-counterfeiting labels:
1. The edge of the self-adhesive anti-counterfeiting label:
The edge of the self-adhesive material is smooth and undamaged, which is the basis for ensuring the quality of the self-adhesive label printing. Therefore, before printing, you must carefully check whether the slitting edge of the roll of self-adhesive material has burrs and whether it is due to storage. If it is damaged due to improper transportation, roll down 4-5 times of the roll of self-adhesive material, and check the cutting edge carefully.
2. The lines on the self-adhesive anti-counterfeiting label:
When the self-adhesive material is slitting, if the slitting 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, and the fibers pulled out of the crack will be stuck. The mixture sticks. The occurrence of cracks may be continuous or random, and may appear on one side of the roll of self-adhesive material, or on both sides. Therefore, before the self-adhesive material is printed on the machine, you must carefully check the backing paper. Whether there are small cracks on the facial tissue.
Then, take a piece of sample paper that has passed the above inspection, peel it off the bottom paper and check again for cracks on the bottom paper and the bottom paper, because the cracks are sometimes very small and can only be found after separating the bottom paper and the top paper. It is worth noting that, since the ink and adhesive will gradually accumulate on the paper guide roller of the printing press during the printing process, it will also cause cracks on the edge of the self-adhesive material. Therefore, even if printing has already started, the above problems cannot be ignored.
3. Stickiness of self-adhesive anti-counterfeiting label:
Adhesive material edges are stuck or some areas on the backing paper are missing silicone oil, which will cause the face paper to break during waste discharge during the printing process, and normal production will not be possible. Therefore, before printing, take a piece of sticker material about 1 meter long and peel it off by hand to see if there is any part that can't be peeled smoothly and uniformly on the edge or other parts. Usually, the edge adhesion between the face paper and the bottom paper occurs on a slit roll of the entire roll of coated self-adhesive material, and generally only occurs at the outer layer of 7 meters to 10 meters, so when you encounter a slit roll There is adhesion on the edge of the self-adhesive material. Don't immediately assert that the entire roll of paper has this problem.
In addition, it should be noted that peeling off light weight facial paper (such as 60g/m2 and 80g/m2 facial paper) is stronger than peeling heavy weight facial paper. The lighter the facial paper, the tighter the hand feel when peeling off. Because of this, sometimes when die-cutting the self-adhesive material selected by the customer according to the shape required by the customer, it cannot be completed at the regular printing speed.
4. The appearance of the self-adhesive anti-counterfeiting label:
If the slitting end faces of the roll of self-adhesive material are not uniform, it will not only affect the registration during printing, but also cause difficulty in discharging waste due to changes in the die cutting position; inconsistent elasticity during rewinding will cause printing Changes in paper force and uneven tension will also cause printing quality problems.
Anti-counterfeiting self-adhesive labels still need to be applied by enterprises in the end. Many manufacturers do not consider the application temperature of enterprises and the condition of the objects to be attached, which leads to various problems and eventually occurs. Label drop and label warping have become common occurrences. Believe that the product has been sold, we will not provide good after-sales service guarantee, anti-counterfeiting production experience, and have perfect anti-counterfeiting production solutions for pre-sales, in-sales and after-sales, and one-to-one customized solutions for enterprises problem.
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