초록 ▼

A method of defining an identification marking on an article comprising the location, on a surface of the article in a required area, of a stencil defining a required identification marking; the stencil preferably being temporarily adhered to the surface by means of glue or adhesive, applying to the

A method of defining an identification marking on an article comprising the location, on a surface of the article in a required area, of a stencil defining a required identification marking; the stencil preferably being temporarily adhered to the surface by means of glue or adhesive, applying to the stencil to contact the surface through the identification marking defined by the stencil, an active substance which is corrosive to, or a solvent of, the material defining said surface of the article; allowing such contact between the active substance and surface to persist for a selected length of time; and thereafter removing the stencil and active substance adhered thereto from the article and cleaning the surface.

대표청구항 ▼

A method of defining an identification marking on an article comprising the steps of: (1) locating on a surface of the article in a required area a flexible plastics foil or film stencil defining a required identification marking in areas where contact occurs between the surface of the article and a

A method of defining an identification marking on an article comprising the steps of: (1) locating on a surface of the article in a required area a flexible plastics foil or film stencil defining a required identification marking in areas where contact occurs between the surface of the article and an active substance wherein the required areas of contact defined by said stencil have a multitude of small perforations formed by electrostatically passing electrons through the stencil material in the required areas thereof; (2) applying to the stencil to contact the surface through the identification marking defined by the stencil, an active substance which is corrosive to, or a solvent of, the material defining said surface of the article; (3) allowing such contact between the active substance and surface to persist for a predetermined length of time; and thereafter (4) removing the stencil and active substance adhered thereto from the article and cleaning the thus marked surface.