FIELD: packaging industry.
SUBSTANCE: provided the production method of sheet or rolled material, having polymeric layers and non-polymeric functional or decorative layer, which contains the application of the polymer coating to the initial film, having the support polymer layer and the binded with it non-polymeric functional or decorative layer. While the coating is applied, the molten extruded polymeric material is subsequently passed through two cooling calendering gaps, forming the coating polymer layer in the first gap with the thickness greater than the thickness of the initial film, and the initial film is fed into the second or subsequent gap, providing the binding of the coating polymer layer and the initial film. In the mentioned gap provide the initial film coverage of one of the calenders with the direct contact of the initial film first side with the surface of this calender and the second side of the initial film - with the covering polymer layer.
EFFECT: reduction of the initial film deformation, in particular the decorative or functional layer, the technology simplification and productivity increase.
15 cl, 3 dwg, 2 ex
Authors
Dates
2017-10-05—Published
2016-10-10—Filed