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How to check the quality of double-sided tape

by:Gangyuan      2023-02-01

We often use double-sided tape in our life, but we don't know how to distinguish it from good or bad. In fact, checking the quality of double-sided tape is mainly divided into the following points: 1. Check whether there is a crack on the double-sided tape: When the double-sided tape is slitting, if the cutting tool is not adjusted properly or the blade is not sharp enough, cracks will appear on the top paper or bottom paper of the double-sided tape, and the fibers pulled out from the cracks will be stuck by the adhesive. The occurrence of cracks may be continuous or random, and may appear on one side of the reel of double-sided tape, or on both sides. Therefore, before the double-sided tape is machined, it is necessary to carefully check its backing paper and surface. Are there any small cracks in the paper. 2. Check whether there are burrs on the double-sided tape: The edge of the double-sided tape on the roll is smooth and undamaged, which is the basis for ensuring the quality of the double-sided tape. The rough edge, whether it is damaged due to improper storage and transportation, and the double-sided tape should be rolled down 4-5 times, and the cutting edge should be carefully checked. 3. Check whether the edge of the double-sided tape is sticking and whether the backing paper is leaking silicon oil: If the edge of the double-sided tape is sticking or there is a part of the backing paper missing silicone oil, it will cause the face paper to break during the waste discharge during the processing process and cannot be produced normally. . Before processing, take a piece of self-adhesive material about 1 meter long and peel it off by hand to see if there are any parts that cannot be peeled off smoothly and uniformly on the edge or other parts. Usually, the edge adhesion of the top paper and the bottom paper occurs. On a slit roll of the self-adhesive material coated on the whole roll, and generally only occurs at the outer layer of 7 meters to 10 meters, so when we encounter adhesion at the edge of the slit roll double-sided tape, do not immediately It is asserted that the entire roll of paper has this problem.
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