The selection of microporosity on the surface of the tape and the standard of glue quality

by:Yourijiu     2021-08-03

There are many types of tapes in the process of use, and there are also many kinds of adhesives on their surfaces. Therefore, the performance and strength of tapes of various brands are different, so you need to consider when purchasing tapes. The factors are more numerous.

The microporosity of the tape to be adhered is due to the adhesive effect of the tape during use, mainly because the moisture of the adhesive on the surface of the tape penetrates into the adherend after the tape is glued, and the tape dries quickly. It becomes a part of the sticker, so the microporosity of the surface of the sticker is very important for the choice of tape,

If the tape has more microporosity and greater moisture absorption when in use, it is necessary to use a tape with a rapid coagulation of the adhesive. On the contrary, use a tape with a slower coagulation speed or a tape with more adhesive. In the manufacturer, apply an adhesive to the base tape. Usually, it should be fully dried and then arranged into a roll. If the adhesive tape is too wet, the tape itself will stick together very tightly. It is difficult to open during use, and some cannot be used at all. .

In the process of using adhesive tape, there are two criteria for the quality of the glue when using it, namely the initial adhesion and retention. The two will be inversely proportional to a certain extent. Under normal circumstances, its adhesion The tape that will be less than No. 10 is less glue-covered, generally only about 20 microns.

The initial adhesion of normal sealing tape is between 15 and 20, and the thickness of this tape glue is generally 22-28 microns. It is the thickness that meets the standard. However, most of the tapes on the market are doped with impurities, so the thickness increases. In order to hide the impurities, the glue is also doped with toner.

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