Loading patent…
AssigneeKlöCkner Pentaplast GmbH
InventorsChristian Kohlert, Bernd Schmidt, Andreas Schnabel, Frank Michels, Alexander Razigraev, Tamara Chistyakova, Marco Schaaf
Estimating the term…
A method is provided for producing colored molded bodies based on the following steps: (a) plasticising a polymeric material and blending the material with one or more dyes to form a molding compound by means of a gelation unit equipped with a metering apparatus for dyes; (b) optionally temporarily storing the molding compound obtained in step (a); (c) charging a molding device with the molding compound; and (d) producing the molded body; wherein the ratio of dye to polymeric material is automatically regulated using a colorimeter and an electronic control, and in step (a) color values are measured at the molding compound located in the gelation unit and transmitted as a signal to the electronic control.
A process for the production of one or more moldings, comprising the steps of
An apparatus comprising a gelling assembly which has a metering device for one or more dyes and which plastifies and mixes a polymeric material with dye to give a molding composition, a colorimeter, and an electronic control system connected to the metering device and to the colorimeter which automatically regulates the quantitative ratio of dye to polymeric material, wherein
A foil comprising a polymeric material and dyes, said foil having a width from 0.1 to 6 m, length from 100 to 10,000 m, local color coordinates Ek=(L*k, a*k, b*k), and an average color coordinate EM=(L*M, a*M, b*M) where
Dependencies are inferred from the claim text.