公开(公告)号：US3586609A

公开(公告)日：1971-06-22

申请号：US3586609D

申请日：1968-07-26

Applicant: STORK AMSTERDAM

Inventor： JANSEN LODEWIJK

IPC: C25D1/02 ,  C25D1/10 ,  C25D1/20 ,  G03F7/12 ,  C23B7/00 ,  B01K1/00

CPC classification number: C25D1/10 ,  C25D1/02 ,  C25D1/20 ,  G03F7/12

Abstract: A BASE IN THE FORM OF AN ELECTRICALLY CONDUCTIVE CYLINDER IS PROVIDED WITH A SCREEN OF ELECTRICALLY INSULATED SPOTS TO FORM A DESIRED PATTERN. THROUGH AN ELECTROCHEMICAL PROCESS, A METALLIC LAYER OF THE DESIRED THICKNESS IS DEPOSITED UPON THE BASE BUT THE SPOTS REMAIN UNCOVERED WITH METAL. THE OUTER DIAMETER OF THE BASE CYLINDER IS REDUCED TO FACILITATE THE REMOVAL OF THE METAL LAYER THEREFROM. THE METAL LAYER WILL BE THE DESIGNED STENCIL.

公开(公告)号：US3616278A

公开(公告)日：1971-10-26

申请号：US3616278D

申请日：1968-07-26

Applicant: STORK AMSTERDAM

Inventor： JANSEN LODEWIJK

IPC: B41C1/14 ,  C25D1/08 ,  C25D1/10 ,  C25F3/14 ,  G03F5/12 ,  G03F7/12 ,  C23B7/00 ,  C23B7/02

CPC classification number: B41C1/142 ,  C25D1/08 ,  C25D1/10 ,  C25F3/14 ,  G03F5/12 ,  G03F7/12

Abstract: Starting with an apertured cylindrical matrix an electrically insulating material is applied over the matrix to close the matrix apertures. A layer of metal is then deposited electrically on the matrix to form a metal film screen. A layer of transparent plastic material is then applied onto the metal film screen and the film screen of metal and transparent plastic is then removed from the matrix. The starting matrix may be expanded by mandrel or the like prior to the closing of the matrix openings and to carrying out the other steps and the outer diameter of the matrix is then reduced prior to removing the film screen therefrom. The starting cylindrical matrix may also comprise a thin-walled apertured sleeve which is deformed into a kidney-shaped section to reduce its outer diameter prior to removing the film screen therefrom.