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PVC packaging tape: Tape selection

by:Kint      2020-01-15
PVC packaging tape is composed of two parts: base material and adhesive. Two or more unconnected objects are connected together by bonding. The surface is coated with a layer of adhesive. Earlier adhesives came from animals and plants. In the 19th century, rubber was the main component of adhesives; In modern times, various polymers are widely used. The adhesive can stick to something because it forms a bond between its own molecules and the molecules that want to connect the object. This kind of bond can firmly adhere the molecules together. The composition of the adhesive has various polymers according to different brands and types. There are many kinds of PVC packaging tape, and there are many kinds of adhesives on its surface, so the performance and strength of various brands of tape are different, therefore, the following factors need to be considered when purchasing adhesive tape: microporosity of the adhesive to be pasted: due to the occurrence of adhesive effect of the adhesive tape, it is that the moisture of the adhesive on the surface of the adhesive tape penetrates into the adhesive after the adhesive tape is glued, and the adhesive tape becomes a part of the adhesive, therefore, the micropores on the surface of the desired adhesive are very important for the selection of adhesive tape. If the adhesive has more micropores and the moisture absorption of the goods is greater, the adhesive tape with rapid condensation of adhesive agent must be adopted, on the contrary, use adhesive tape with slower condensation speed or adhesive tape containing more adhesive. Adhesive on the surface of the adhesive tape: the adhesive tape is coated with adhesive on the bottom tape in the manufacturer, and is usually rolled up after it is fully dried. If the adhesive tape is too wet, the adhesive tape itself will stick tightly together, it is difficult to open when in use, and some cannot be used at all.
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