Apparatus and methods for controlling application of a substance to a substrate

摘要

A principal substance such as ink is selectively transferred from a first substrate to a second substrate by first applying a gating agent to the first substrate to define first and second areas thereof. The principal substance is then applied to the first and second areas of the first substrate and the gating agent aids in transfer of the principal substance from the first area to the second substrate. A blocking agent may be applied to the second area of the first substrate to block transfer of the principal substance to the second substrate.