How to check the quality of double-sided tape:
1. Check whether the mesh double-sided tape has burrs. The mesh double-sided tape is smooth and undamaged. It is the basis to ensure the quality of the double-sided tape. Therefore, before processing, you must carefully check whether the slitting edge of the mesh double-sided tape is there. Whether the raw edges are damaged due to improper storage and transportation, and the double-sided mesh tape should be rolled down 4-5 times, and the slitting edges should be carefully checked.
2. Check whether there are cracks on the double-sided tape. When the double-sided tape is slit, 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 double-sided tape, and the crack will be pulled out. The fibers will be stuck by the adhesive again. The occurrence of cracks may be continuous or random, and may appear on one side of the roll of double-sided tape, or on both sides. Therefore, before machining on the double-sided tape, you must carefully check the bottom paper and surface. Whether there are small cracks on the paper. Then, take a piece of sample paper that has undergone the above inspection, peel it off the backing paper and check again for cracks on the bottom paper and backing paper, because the cracks are sometimes very small and can only be found after separating the backing paper and the top paper.
3. Check whether the edge of the double-sided tape is stuck, whether the bottom paper is missing the silicon mesh, the double-sided tape is stuck on the edge, or there is a part of the bottom paper that is missing silicone oil, which will cause the top paper to break during the waste discharge process, which is not normal. Production. Therefore, before processing, take a length of about 1 meter of self-adhesive material and peel it off by hand to see if there are any parts on the edge or other parts that cannot be peeled smoothly and uniformly. 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 to 10 meters. Therefore, according to the grid double-sided tape Treatment method, if there is adhesion on the edge of the slit roll of double-sided tape, do not immediately assert that the entire roll of paper has this problem.