Method for hot laminating of sheets as well as laminating foil and laminating device for performing the method

A method for hot laminating sheet material and laminating foil through at least one laminating unit configured as a piece of office equipment, in which sheet material and laminating foil are joined, and a combination formed thereby is inserted into the laminating unit, wherein the combination is hot sealed together under the influence of pressure and increased temperature and through adaptation of temperature and/or pass-through velocity to a thickness and/or a material of the laminating foil, wherein laminating foil is used, whose initial roughness at least on one side is greater than an end roughness after laminating, wherein the laminating foil is provided on the at least one side with a marking in the form of a surface pattern, which comprises surface portions, whose roughness differs from the initial roughness, wherein the marking is configured to be read out by a sensor of the laminating unit, wherein the laminating foil with its marking is run past the sensor, wherein the sensor reads out the marking and generates a signal which is characteristic for the marking, and a temperature or a pass-through velocity is adjusted as a function of the signal.