Composition of pressure sensitive adhesive tape

Composition of pressure-sensitive adhesive tapes 1 Pressure-sensitive adhesives,
2 Substrate 3 Underlayer Treatment 4 Backside Treatment 5 Separation Paper

The main components of pressure-sensitive adhesive include rubber type and resin type, such as polyacrylate or polyvinyl ether. The requirements for the substrate are uniform, the flexibility is small and the solvent infiltration is good, including, (1) Cotton cloth, glass cloth or non-woven cloth, (2) Plastic film type such as PE, PP, PVC and polyester film, (3) Paper type such as kraft paper, glass transparent paper, etc., and the original degree of substrate is 0.1-0.5mm. between.
The function of the primer treatment agent is to increase the adhesive strength between the adhesive and the substrate so that the adhesive tape does not cause the adhesive to be separated from the substrate to decontaminate the adhered surface and make the adhesive tape reusable. The commonly used primers are chloroprene rubber partially cured with isocyanate, modified chlorinated rubber.
The back surface treatment agent is generally made of polyacrylate, PVC, cellulose derivatives or organosilicon compounds, etc. It can act as a separating agent. For double-sided adhesive tapes, a layer of release paper such as semi-rigid PVC film is required. , PP film or kraft paper.