Adhesive Tapes,single sided,double sided

How to check the quality of double-sided adhesive tape like masking adhesive tape,paper adhesive tape, foam adhesive tape.

Double sided EVA foam adhesive tape VHB

We often use double-sided adhesive tape like masking adhesive tape,paper adhesive tape, foam adhesive tape in our lives, but we don’t know how to distinguish it. In fact, checking the quality of double-sided adhesive tape is mainly divided into the following points:

First of all, check cracks on the double-sided adhesive 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 fibers pulled out of the crack will be stuck by the adhesive. 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 the double-sided tape, you must carefully check the bottom paper and surface. Whether there are small cracks on the paper.

Secondly, check whether the double-sided tape has burrs:

The edge of the roll double-sided tape is smooth and undamaged, which 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 roll double-sided tape has burrs or whether it appears due to improper storage and transportation. Damaged, and roll down the roll of double-sided tape 4-5 times, carefully check the cutting edge.

For the third, check whether the edge of the double-sided adhesive tape is stuck, and whether the bottom paper is missing silicon:

If the edges of the double-sided adhesive tape are stuck or the backing paper is partially coated with silicone oil, it will cause the paper to break during the waste discharge process, which will prevent normal production. 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 on the edge or other parts that cannot be peeled off smoothly. Usually, the edges of the top paper and the bottom paper stick together.

On a slit roll of the entire roll of coated self-adhesive material, and it usually only occurs at the outer layer of 7 meters to 10 meters, so when we encounter adhesion on the edge of the slit roll of double-sided adhesive tape including double sided masking adhesive tape, double sided paper adhesive tape, double sided foam adhesive tape, do not immediately Just assert that the entire roll of paper has this problem.

Double sided EVA foam adhesive tape VHB

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