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Judging the quality of pressure sensitive adhesive

Judging the quality of pressure sensitive adhesive

The quality of water-based pressure-sensitive adhesives can be judged by general manual bonders, which can generally be measured from several aspects such as adhesive strength, drying speed, viscosity, solid content and PH value.

2022-02-28

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PUR hot melt adhesive compared to water-based pressure sensitive adhesive

PUR hot melt adhesive compared to water-based pressure sensitive adhesive

First of all, this is caused by the white material itself or the contamination by the adherend. The water-based PU adhesive will not turn yellow. In the market, we usually encounter white PU/PVC and rubber bonding, because the treated water used for rubber contains strong oxidizing substances. , when the glue covers it, it is oxidized, so yellowing occurs. At this time, the method is to not spill the liquid medicine when dealing with the substrate rubber, and clean up the spillage in time.

2021-09-26

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How to solve the problem of bubbles in the production of protective film?

How to solve the problem of bubbles in the production of protective film?

How to solve the problem of bubbles in the production of protective film? There will be bubbles in the production process of protective film, which affects the product quality of protective film, which is a headache for many protective film manufacturers. So if we encounter this problem, how should we solve it? In order to solve this problem, we have thought of many methods, such as selecting the appropriate ink and increasing the coating amount, enhancing the wettability of the glue to the protective film, and improving the local poor gluing. increase the temperature and pressure of the compounding roller; reduce the compounding speed to increase the soaking time and gluing time, etc.

2022-02-28

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Application introduction of PET textured protective film performance

Application introduction of PET textured protective film performance

The PET textured protective film is made of polyester film as the base material, coated with acrylic resin adhesive on the raw material side by a coating machine, and then rolled. The surface texture of the pet textured protective film is neatly distributed, the thickness of the PET protective film is between 30 and 130 μm, and the viscosity is divided into ultra-low viscosity, low viscosity, medium viscosity, medium high viscosity and high viscosity. The thickness and viscosity of the PET textured protective film can be selected according to different bonding materials.

2022-02-28

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