Direct ribbon inking by gravure
AssigneeColumbia Ribbon & Carbon Mfg. Co., Inc.
InventorsGlenn E. Peterson, Robert T. Emerson, William J. Schoenlein
Life of this patent
Estimating the term…
Abstract
A novel inking method and apparatus particularly well suited for the re-inking of used fabric ribbons such as of the chain-printer type. The apparatus preferably contains means for moving a fabric ribbon through an inking station onto a take-up roll, means in advance of the inking station for adjusting the edge-alignment of the ribbon, embossed or gravure inking means for supplying ink directly to the ribbon without compression of the ribbon, illumination means to facilitate the inspection of the ribbon for flaws and for uniformity of ink, and shut-off means for stopping the movement of the ribbon at any desired position.
Claims8
An apparatus for the application of sufficient amounts of liquid printing ink to a used printing ribbon, comprising an ink-absorbent fabric web containing an uneven distribution of residual printing ink, to provide said fabric web with an even, uniform impregnation of printing ink, comprising a web-supply roll, an ink-applicator roll having a gravured surface, and a web-windup roll, means for transporting under tension a continuous length of a used printing ribbon, comprising an ink-absorbent fabric web containing an uneven distribution of residual printing ink, from said supply roll, over a portion of the gravured surface of said applicator roll and onto said windup roll, means for turning said applicator roll in the same direction as said web is transported but at a surface speed which is slower than the speed of said web so as to place a drag thereon, means for supplying liquid printing ink to the gravured surface of said applicator roll, blade means associated with the inked gravured surface of said applicator roll for removing said liquid printing ink from the surface of said applicator roll except for ink within the recesses of said gravured surface, and means for maintaining said ink-absorbent fabric web in compression-free contact with the inked gravured surface of said applicator roll whereby said ink-absorbent fabric web is free to absorb said liquid printing ink from the recesses of said applicator roll in different amounts across the width of said web to satisfy the different degrees of ink-absorbency of said web, as determined by the different amounts of residual ink remaining within different areas of said web, to provide said web with a uniform, even impregnation of said liquid printing ink.
Dependencies are inferred from the claim text.