| 摘要 |
The invention relates to the production and use of a laminate for tube and container structures, whereby the containers are defined with a rotationally symmetric limit dimensioning by the smallest commercial diameter D = 10 mm, the smallest shoulder radius R = 3 mm and by the largest possible shoulder angle of a = 60° and can have any shape up to this limit dimensioning and thus the curvature of the container wall. The basic design of the laminate comprises an inside supporting layer, an outside thinner printing layer for receiving a printed image on the outside or inside of this layer, and a laminating layer placed therebetween. The novel laminate is characterized in that: the functional supporting layer a), provided as a supporting film, has a thickness of 140 to 400 ?m; the functional supporting layer can be sealed and its melting temperature ranges from 126 to 160 °C; the printing layer (c), provided as sealable printing film, can be sealed with the functional supporting layer a), and has a melting temperature ranging from 105 to 136 °C and a thickness of 20 to 100 ?m, and; the laminating layer b) of the laminate composite is produced while using one-component or two-component reaction adhesives, whereby in order to achieve a safe equilibrium of forces between the restoring forces of the sealable printing film c) and the adhesive force of the adhesive in the laminating layer b), this is brought about by the following parameters: the adhesive base, the system of components: ROH = hydroxyl, NCO = isocyanate, the solids content according to optimal viscosity, the mixture ratio between the adhesive and the curing agent system, the quantity of adhesive applied, the cylinder temperature, and the drying temperature. |
