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How to Check the Quality of Double-sided Tape?

Jul. 27, 2019
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Original 3M Products Tape Supplier to share with you the method of quality inspection of double-sided tape.

1. Check for cracks on the double-sided tape.

When the double-sided tape is cut, if the cutting tool is not properly adjusted or the blade is not sharp enough, cracks will appear on the face paper or the bottom paper of the double-sided tape. The fiber pulled out at the crack will be stuck by the adhesive. The occurrence of cracks may be continuous or random. It may appear on one side of the double-sided tape of the roll, or on both sides. Therefore, before machining on the double-sided tape, it is not necessary to carefully check the bottom paper and the surface. Is there a small crack on the paper?

Then, take a sample of the paper that has been inspected above, and peel off the backing paper to check again for cracks on the underlying paper and the backing paper, because the cracks are sometimes very small, and can only be found after separating the backing paper and the paper.

2. Check if Die Cutting 3M Tape has flash

The edge of the double-sided tape of the reel is smooth and non-destructive, which is the basis for ensuring the quality of the double-sided tape. Therefore, it is necessary to carefully check whether the slit edge of the double-sided tape of the reel has burrs before processing and whether it is damaged due to improper storage and transportation. And roll the double-sided tape of the reel 4-5 turns and carefully check the slitting edge.

3M Double Side Tape

3. Check if the edge of the double-sided tape is stuck and if the bottom paper is leak-coated with silicon.

The edge of the double-sided tape has adhered or a part of the bottom paper is leak-coated with silicone oil. During the processing, the facial paper breaks during the waste process and cannot be produced normally. Therefore, before processing, take a piece of self-adhesive material about 1 meter long, peel it off by hand, and see if there are any parts on the edge or other parts that cannot be smoothly and consistently peeled off. Usually, the edge paper and the bottom paper edge adhesion occur on a slit roll of the entire roll of the coated self-adhesive material, and generally only occurs at the outer layer of 7 meters to 10 meters, so that the cut roll is encountered. There is adhesion on the edge of the double-sided tape. Do not immediately assert that the whole roll of paper has this problem.

4. Check whether the end face of the double-sided tape of the reel is straight and the rewinding is consistent.

If the slit end face of the 3M Double Side Tape is not uniform, it will not only affect the registration during processing but also cause difficulty in discharging due to the change of the die-cut position; when the rewinding is inconsistent, the paper force will be caused during printing. Changes and uneven tension can also cause print quality problems.


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