The dyne value of the film is the surface tension coefficient, which refers to an index of the adsorption effect on the surface of the material and reflects a key parameter of the adhesion of the thin plastic film. Dyne is the unit of force, which is the force of mutual traction per unit length between two adjacent parts of the liquid surface. The unit of surface tension is N/m, and dyne/centimeter (dyn/cm), 1dyn/cm = 1mN/m.
Dyne value standard refers to the value of the surface tension of the thin plastic film tested by a Dyne pen and is also a decisive standard for the surface treatment of the thin plastic film.
The higher the dyne value, better the adhesion of the slurry, more surface energy, better printing effect. If low dyne value of the thin plastic film, the ink on film surface will be hard to dry out, weak printing film effect.
If the dyne value of the thin plastic film material is lower than 34 dyne, poor adhesion, and there may be risks of popping, false sticking, and degumming after lamination. If the dyne value of the thin plastic film is higher than 34 dynes or been physically and chemically treated, will be with sufficient adhesion on fabric material.
Keep the surface of the thin plastic film material clean during winding and using, as fingerprints and grease will reduce dyne value, which will reduce the effect of printing and lamination.
