PRINT JOB AND PROCESS ROLL EVENT TRACKING

• US 20150090140A1
• Filed: 10/01/2013
• Published: 04/02/2015
• Est. Priority Date: 10/01/2013
• Status: Abandoned Application

• Current Assignee: Goss International Americas Incorporated (City of Shanghai)
• Original Assignee: Goss International Americas Incorporated (City of Shanghai)
• Inventors: RANCOURT, Michael Raymond, HOFF, Howard W.
• Application Number:
  US14/042,946
• Publication Number:
  US 20150090140A1
• Time in Patent Office: Days
• US Class Current: 101/219
• CPC Class Codes: B41F 13/02 Conveying or guiding webs through presses or machines
• CPC Class Codes: B41F 13/54 Auxiliary folding, cutting, collecting or depositing of sheets or webs
• CPC Class Codes: B41F 33/0009 Central control units
• CPC Class Codes: B41F 33/0036 Devices for scanning or checking the printed matter for quality control
• CPC Class Codes: B41F 33/0081 Devices for scanning register marks
• CPC Class Codes: B41F 33/02 Arrangements of indicating devices, e.g. counters
• CPC Class Codes: B41F 7/04 using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs

Abstract

A method and printing press for performing the method is provided for recording print processing conditions on a printed web of a rewind roll during operation of a printing press to print a print job, including associating sensed printing process parameters with tracked locations on the web at which the printing process parameters were sensed such that, for each tracked location, there is an associated set of printing process parameters; storing in memory, for each tracked location, the associated set of printing process parameters; and storing in memory an identification of the rewind roll, and an association of the rewind roll with the associated set of printing process parameters for each tracked location.

Claims

1. A method for recording print processing conditions on a printed web of a rewind roll during operation of a printing press to print a print job, comprising:

providing a web roll, the web roll containing a web;

unwinding the web from the web roll and passing the web through a printing unit of the printing press;

printing on the web with the printing unit as the web passes through the printing unit;

passing the web through one or more further processing components to a rewind station located downstream of the downstream of the printing unit;

winding the printed web onto a rewind roll located at the rewind station;

wherein, as the web passes through the one or more further processing components, further performing the steps of;

tracking, with a position sensor, a plurality of equally spaced locations on the web;

detecting, using one or more sensors, a plurality printing process parameters of the printing press at a plurality of time points;

and further including the steps of

associating the sensed printing process parameters with the tracked locations on the web at which the printing process parameters were sensed such that, for each tracked location, there is an associated set of printing process parameters;

storing in memory, for each tracked location, the associated set of printing process parameters; and

storing in memory an identification of the rewind roll, and an association of the rewind roll with the associated set of printing process parameters for each tracked location.

2. The method of claim 1, wherein the step of detecting, further comprises using a processor to process data from the one or more sensors to generate one or more of the plurality of printing process parameters.

3. The method of claim 2, wherein the printing process parameters includes two or more of:

a print defect selected from the group consisting of mark, spot, slime hole, and hickeys;

optical density;

registration;

color deviation;

scumming;

lateral fit; and

water mark.

4. The method of claim 2, wherein the printing process parameters include registration, and the registration is one or more of circumferential register, lateral register, and skew.

5. The method of claim 3, where the printing process parameters further include a parameter which indicates whether or not an printed image on the web matches a master image.

6. The method of claim 1, further comprising printing a scanable label, the scanable label having identification information uniquely identifying the rewind roll.

7. The method of claim 1, further comprising

storing in memory, print job data associated with the print job;

and

storing in memory, an association of the print job data with the rewind roll.

8. The method of claim 6, wherein the print job data includes two or more of;

dot gain;

contrast;

register deviation;

optical density targets;

optical density deviation limit;

length of web on roll;

substrate type;

substrate modulus;

substrate thickness;

ink key preset metrics;

print job repeat length; and

unstrained repeat length.

9. A printing press, comprising:

a web roll, the web roll containing a web;

an infeed, the infeed configured and arranged to unwind the web from the web roll;

a plurality of printing units configured and arranged to print on the web as the web passes through the printing units;

a rewind station located downstream of the of the printing units, the rewind station configured and arrange to wind the web onto a rewind roll;

one or more further processing components located downstream of the printing units and upstream of the rewind station;

a position sensor, the position sensor configured and arranged to track a plurality of equally spaced locations on the web;

a controller, the controller connected to the infeed, the plurality of printing units, the rewind station, the controller configured and arranged to perform the method of claim 1.

10. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 2.

11. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 3.

12. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 4.

13. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 5.

14. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 6.

15. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 7

16. The printing press of claim 9, wherein the controller is configured and arranged to perform the method of claim 8.