Abstract: A method for modifying the surface of a solid substrate which is useful for an adhesion process, printing process, painting process and the like is provided. So, it is provided a method for modifying the surface of a solid substrate, wherein the surface of the solid substrate is treated wholly or partly with a flame of a fuel gas which comprises a modifying compound which comprises an alkylsilane compound and/or alkoxysilane compound, with the respective boiling point being between 10 and 60° C., the amount of the modifying compound in the fuel gas having a value in a range from 1×10?10 to 10 mol % of the total amount of fuel gas, and the modifying compound being heated, evaporated, mixed with the fuel gas and then burned.

Abstract: A method for modifying the surface of a solid substrate, a surface modified solid substrate and an apparatus for modifying a surface of a solid substrate which facilitate adhesion, printing, painting and the like are provided. By providing a method for modifying the surface of a solid substrate, a surface modified solid substrate and an apparatus for modifying a surface of a solid substrate, providing a surface modification apparatus comprising a storage part for storing a fuel gas which comprises a modifying compound which comprises a silicon atom, a titan atom or an aluminum atom, with the respective boiling point being between 10 and 100 ° C., a transfer part for transferring said fuel gas to an outlet part, and an outlet part for blow treating with a fuel gas flame, and carrying out blow treatment wholly or partly with a silicatizing flame or the like of the surface of a solid substrate.