Abstract: A method for manufacturing of a multilayer PVC semi-finished product, in particular a multilayer PVC synthetic leather or a multilayer PVC foam sheet, the method comprising the steps of: Coating a coated or uncoated carrier web with a PVC plastisol, whereby a carrier web coated with an ungelled plastisol layer is obtained; thereafter; gelling the ungelled plastisol layer, whereby a carrier web coated with a gelled plastisol layer is obtained; and thereafter cooling the carrier web coated with the gelled plastisol layer; characterized in that the coating comprises coating the carrier web with at least two PVC plastisols one above the other, simultaneously or in immediate succession. A corresponding apparatus is further described.

Abstract: A method for manufacturing of a multilayer PVC semi-finished product, in particular a multilayer PVC synthetic leather or a multilayer PVC foam sheet, the method comprising the steps of: a. Coating a coated or uncoated carrier web with a PVC plastisol, whereby a carrier web coated with an ungelled plastisol layer is obtained; thereafter b. Gelling the ungelled plastisol layer, whereby a carrier web coated with a gelled plastisol layer is obtained; and thereafter c. Cooling the carrier web coated with the gelled plastisol layer; characterized in that the coating comprises coating the carrier web with at least two PVC plastisols one above the other, simultaneously or in immediate succession. A corresponding apparatus is further described.

Abstract: A method for manufacturing of a multilayer PVC semi-finished product, in particular a multilayer PVC synthetic leather or a multilayer PVC foam sheet, the method comprising the steps of: a. Coating a coated or uncoated carrier web with a PVC plastisol, whereby a carrier web coated with an ungelled plastisol layer is obtained; thereafter b. Gelling the ungelled plastisol layer, whereby a carrier web coated with a gelled plastisol layer is obtained; and thereafter c. Cooling the carrier web coated with the gelled plastisol layer; characterized in that the coating comprises coating the carrier web with at least two PVC plastisols one above the other, simultaneously or in immediate succession. A corresponding apparatus is further described.

Abstract: A method for the continuous in-register embossing of a stretchable film is provided where a repeating printed image or a laminate may be formed by way of the stretchable film in an embossing station. The embossing station may include a rotating embossing roll having an embossed image and an associated rotating counter-roll. The printed image length of the film may be stretched longitudinally before the embossing contact with the embossing roll to a length greater than or equal to or smaller than or equal to the embossed image length or the circumference of the embossing roll. The maintenance of register of the embossing may be achieved by way of a relative speed between the circumferential speed of the embossing roll and the web speed of the film in the embossing station.

Abstract: A method for producing a printed plastisol or lacquer layer, includes: providing a web-shaped carrier with a release coating and/or a surface with a releasing property; applying a flowable, preferably liquid or sol-like plastisol or lacquer layer to the release coating and/or the surface with releasing property; contactless printing the flowable plastisol or lacquer layer; and curing of the printed plastisol or lacquer layer.

Abstract: The invention relates to a process for processing an adhesive, wherein the process comprises applying an adhesive precursor product onto an adhesive carrier and activating and crosslinking the adhesive precursor product by treating the adhesive precursor product with water vapor and heat in a reaction chamber, and wherein the process is characterized in that air mixed with reaction gases forming during the activation and crosslinking in the reaction chamber is conducted away from the reaction chamber and recirculated as circulating air into the reaction chamber, wherein a portion of used air of the air recirculated as circulating air is replaced by fresh air. The invention further relates to a corresponding device for processing a pressure sensitive hot-melt adhesive.

Abstract: A method for producing a printed plastisol or lacquer layer, includes: providing a web-shaped carrier with a release coating and/or a surface with a releasing property; applying a flowable, preferably liquid or sol-like plastisol or lacquer layer to the release coating and/or the surface with releasing property; contactless printing the flowable plastisol or lacquer layer; and curing of the printed plastisol or lacquer layer.

Abstract: The invention relates to a process for processing an adhesive, wherein the process comprises applying an adhesive precursor product onto an adhesive carrier and activating and crosslinking the adhesive precursor product by treating the adhesive precursor product with water vapor and heat in a reaction chamber, and wherein the process is characterized in that air mixed with reaction gases forming during the activation and crosslinking in the reaction chamber is conducted away from the reaction chamber and recirculated as circulating air into the reaction chamber, wherein a portion of used air of the air recirculated as circulating air is replaced by fresh air. The invention further relates to a corresponding device for processing a pressure sensitive hot-melt adhesive.

Abstract: A method for the continuous in-register embossing of a stretchable film is provided where a repeating printed image or a laminate may be formed by way of the stretchable film in an embossing station. The embossing station may include a rotating embossing roll having an embossed image and an associated rotating counter-roll. The printed image length of the film may be stretched longitudinally before the embossing contact with the embossing roll to a length greater than or equal to or smaller than or equal to the embossed image length or the circumference of the embossing roll. The maintenance of register of the embossing may be achieved by way of a relative speed between the circumferential speed of the embossing roll and the web speed of the film in the embossing station.

Abstract: The invention relates to a marker solution which is to be applied by means of an inkjet printer and contains (i) at least one organic solvent that has a greater steam pressure than water at 20° C. and a water content of less than 50 percent (v/v), (ii) predefined first synthetically produced nucleic acids, and (iii) a nucleic acid-complexing, organic auxiliary agent as components.

Abstract: The invention relates to a marker solution which is to be applied by means of an inkjet printer and contains (i) at least one organic solvent that has a greater steam pressure than water at 20° C. and a water content of less than 50 percent (v/v), (ii) predefined first synthetically produced nucleic acids, and (iii) a nucleic acid-complexing, organic auxiliary agent as components.

Abstract: The invention relates to a method for authenticating objects provided with a marker that contains nucleic acid.

Abstract: The invention relates to a method for dissolving charged nucleic acids in an organic first liquid which is immiscible with water. The method comprises the following steps: a) providing a solution of the nucleic acids in an aqueous second liquid, b) precipitating the nucleic acids by adding a complexing agent to the second liquid, the complexing agent forming complexes with the nucleic acids that are insoluble in the second liquid, c) removing the complexes from the second liquid, d) dissolving the complexes in a third liquid which consists of an amphiphilic compound or which contains an amphiphilic compound, and e) mixing the third liquid with the first liquid.

Abstract: The invention relates to a marker solution which is to be applied by means of an inkjet printer and contains (i) at least one organic solvent that has a greater steam pressure than water at 20° C. and a water content of less than 50 percent (v/v), (ii) predefined first synthetically produced nucleic acids, and (iii) a nucleic acid-complexing, organic auxiliary agent as components.

Abstract: The invention relates to a security thread for the forgery-proof marking of objects, comprising at least one fibre (F) with nucleic acid molecules (N) bonded with the one end thereof to a fibre suface and the fibre (F). The other end of the nucleic acid molecule (N) is free such that complementary nucleic acid molecules (N?) may bind to the nucleic acid molecule (N).

Abstract: The present invention provides a marking solution that is to a certain extent counterfeit-resistant, that is particularly easy to use, that can be stamped and that can be used for performing day-to-day markings, especially for the identification of documents, and that is suitable for comparatively simple identification. The marking solution includes an aqueous solution with single-stranded nucleic acids or derivatives thereof, in addition to glycerin and polyethylene glycol (PEG).

Abstract: The invention relates to a method to increase the sensitivity of a carbon electrode for electrochemically detecting an analyte without electrochemically conditioning the carbon electrode, wherein the method comprises treating the carbon electrode with an ionic detergent which is in solution, wherein the detergent is not incorporated in a coating of the electrode.