The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1996
Filed:
Apr. 02, 1993
Johnson & Johnson Inc., Quebec, CA;
Abstract
An apparatus for printing a fibrous web with a decorative pattern, comprising a printing roll having a cavity forming a shaped ink transfer zone to print a principal pattern on the fibrous web through rolling contact therewith, and an array of small recesses in a spaced apart relationship surrounding the cavity and having the ability to trap dirt particles adhering to the printing roll which are being trained over its relief surface by a doctor blade scraping excess ink therefrom. The array of recesses provides a cleaning action by continuously dislodging dirt particles collecting underneath the leading edge of the doctor blade and preventing the dirt particles from agglomerating into large flocs which may interfere with the operation of the doctor blade. The array of recesses also defines an ink transfer zone printing on the fibrous web a relatively faint background pattern upon which the principal pattern is visually eminent. The invention also extends to a method for conditioning a printing roll to prevent dirt particles from accumulating under a doctor blade used in association with the printing roll.