# US 10,119,225 B2 · Systems for controlling a manufacturing line used to convert a paper web into paper products by reading marks on the paper web > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,225 B2 - Document ID: US10119225B2 - Status: Granted - Kind: B2 - Application number: 14/685,967 - Filed: 2015-04-14 - Published: 2015-10-15 - Granted: 2018-11-06 - Earliest claimed: 2014-04-15 - Assignees: GPCP IP Holdings LLC - Applicants: GPCP IP Holdings LLC - Inventors: Andrew G. Bomstad; Thomas J. Petersen; Joseph A. Schulz; Gregory T. Johnson; Mark F. Gerrits - Web page: https://patentgrep.com/patent/US10119225B2 ## CPC - D21G 9/0009: {Paper-making control systems} - D21F 11/14: Making cellulose wadding, filter or blotting paper - D21G 9/0027: {controlling the forming section} - D21G 9/0045: {controlling the calendering or finishing} - D21H 19/68: uneven, broken, discontinuous - D21H 19/72: Coated paper characterised by the paper substrate - D21H 25/005: {Mechanical treatment (D21H25/08, D21H25/18 take precedence)} - D21H 27/005: {relating to physical or mechanical properties, e.g. tensile strength, stretch, softness} - G01N 21/89: in moving material, e.g. running paper or textiles (G01N21/90, G01N21/91, G01N21/94 take precedence) - G01N 27/61: Investigating the presence of flaws - B05D 2203/22: Paper or cardboard - D21G: CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES (winders or rewinders for finished products, means for adjustment of wrinkles or lateral extensions B65H) - D21F: PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON - D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) ## Abstract A system for producing a paper product. The system includes a paper machine, an analysis tool, and a converting line. The paper machine forms a paper web having a plurality of sections, inspects the paper web to identify web properties, and marks the paper web with a plurality of marks. The analysis tool assigns action scores to each section of the paper web based upon the identified properties that section of the paper web. The converting line reads at least one of the plurality of marks on the paper web, obtains the action score associated with a second one of the plurality of marks, calculates a distance between the at least one mark read by the reading unit and the second one of the plurality of marks, and changes at least one operational parameter of the converting line when the calculated distance is less than a threshold. ## Claims ### Claim 1 A system for producing a paper product, the system comprising: (A) a paper machine for forming a paper web, the paper web including a plurality of sections in a sequence, the paper machine including: (a) a web analysis unit to perform at least one of inspecting the paper web and identifying properties in the paper web; (b) a marking unit to mark the paper web with a plurality of marks, at least one mark being assigned to each of the plurality of sections; and (c) a winder to wind the paper web into a parent roll, the winder being positioned after the web analysis unit and the marking unit; (B) an analysis tool configured to assign an action score to each section of the paper web based upon the identified properties in that section of the paper web, at least one action score having an action value, the action value being a value of the action score that indicates an actionable risk of converting line failure; and (C) a converting line for converting the paper web into a paper product, the converting line having a plurality of operating parameters and including: (a) an unwind stand to unwind the paper web from the parent roll; (b) a mark reading unit that (i) reads at least one of the plurality of marks on the paper web and (ii) produces a corresponding output from the mark that has been read; (c) a controller that receives the output from the mark reading unit and is configured: (i) to obtain the action score associated with a second one of the plurality of marks, the second one of the plurality of marks being the next mark with an action value after the at least one mark read by the reading unit, (ii) to calculate a distance between the at least one mark read by the reading unit and the second one of the plurality of marks, and (iii) to change at least one operational parameter of the converting line based upon the action score of the second one of the plurality of marks when the calculated distance is less than a threshold; and (d) a finisher, the paper web being fed to the finisher and converted into a paper product. ### Claim 2 (depends on 1) The system of claim 1, wherein the paper web is unwound from the parent roll at a parent roll speed, and the controller changes the parent roll speed as the at least one operational parameter. ### Claim 3 (depends on 1) The system of claim 1, wherein the controller stops the paper web from being unwound as the at least one operational parameter. ### Claim 4 (depends on 1) The system of claim 1, further comprising a second paper web being unwound from a second parent roll, the unwind stand holding both the paper web and the second paper web and the controller switching between (i) feeding the paper web to the finisher and (ii) feeding the second paper web to the finisher, as the at least one operational parameter. ### Claim 5 (depends on 4) The system of claim 4, wherein the unwind stand has a flying splice to switch from feeding one of the paper web and the second paper web to the finisher, the controller splicing between the paper web and the second paper web, as the at least one operational parameter. ### Claim 6 (depends on 1) The system of claim 1, wherein controller is further configured to calculate the threshold based on a distance required to change the at least one operational parameter. ### Claim 7 (depends on 1) The system of claim 1, wherein the action score is based on an inter-relationship of the web properties in one of the plurality of sections of the paper web. ### Claim 8 (depends on 7) The system of claim 7, wherein the value of the action score is based on a likelihood that the inter-relationship of the web properties will result in converting line failure. ### Claim 9 (depends on 1) The system of claim 1, wherein the web properties include web defects. ### Claim 10 (depends on 9) The system of claim 9, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 11 (depends on 1) The system of claim 1, wherein the web properties include at least one of moisture content, basis weight, and tensile strength. ### Claim 12 (depends on 1) The system of claim 1, wherein the reading unit includes a light source to illuminate a portion of the paper web having the at least one of the plurality of marks and a camera to visually identify the at least one of the plurality of marks. ### Claim 13 (depends on 12) The system of claim 12, wherein the light source is an ultraviolet light source. ### Claim 14 (depends on 1) The system of claim 1, wherein the mark reading unit reads the at least one of the plurality of marks on the paper web as the paper web is being unwound from the parent roll. ### Claim 15 (depends on 14) The system of claim 14, wherein the mark reading unit is positioned downstream from the unwind stand and prior to the finisher. ### Claim 16 (depends on 14) The system of claim 14, wherein the mark reading unit is positioned at a bowed roll. ### Claim 17 (depends on 1) The system of claim 1, further comprising a plurality of web analysis units. ### Claim 18 (depends on 1) The system of claim 1, wherein the web analysis unit comprises a camera and a light source for inspecting the paper web. ### Claim 19 (depends on 18) The system of claim 18, wherein the web analysis unit inspects for web defects. ### Claim 20 (depends on 19) The system of claim 19, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 21 (depends on 1) The system of claim 1, wherein the web analysis unit comprises a web property scanner for identifying properties in the web. ### Claim 22 (depends on 21) The system of claim 21, wherein the web properties include at least one of moisture content and basis weight. ### Claim 23 (depends on 1) The system of claim 1, wherein the marking unit applies ink to the paper web. ### Claim 24 (depends on 23) The system of claim 23, wherein the applied ink is visible under ultraviolet light. ### Claim 25 (depends on 1) The system of claim 1, wherein the finisher includes a rewinder. ### Claim 26 (depends on 1) The system of claim 1, wherein the finisher includes a folder. ### Claim 27 (depends on 1) The system of claim 1, wherein the action score is one of the web properties in one of the plurality of sections of the paper web. ### Claim 28 (depends on 27) The system of claim 27, wherein the value of the action score is based on a likelihood that the web properties will result in converting line failure. ### Claim 29 (depends on 28) The system of claim 28, wherein the web properties include web defects. ### Claim 30 (depends on 29) The system of claim 29, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 31 (depends on 28) The system of claim 28, wherein the web properties include at least one of moisture content, basis weight, and tensile strength. ### Claim 32 A system for producing a paper product, the system comprising: (A) a paper machine for forming a paper web, the paper web including a plurality of sections, the paper machine including: (a) a web analysis unit to perform at least one of inspecting the paper web and identifying properties in the paper web; (b) a marking unit to mark the paper web with a plurality of marks, at least one mark being assigned to each of the plurality of sections; and (c) a winder to wind the paper web into a parent roll, the winder being positioned after the web analysis unit and the marking unit; (B) an analysis tool configured to assign a quality score to each section of the paper web based upon the identified properties in that section of the paper web, at least one quality score having an action value, the action value being a value of the quality score that indicates an unacceptable quality defect; and (C) a converting line for converting the paper web into a paper product, the converting line having a plurality of operating parameters and including: (a) an unwind stand to unwind the paper web from the parent roll; (b) a mark reading unit that (i) reads at least one of the plurality of marks on the paper web and (ii) produces a corresponding output from the mark that has been read; (c) a finisher, the paper web being fed to the finisher and converted into a paper product; and (d) a controller that receives the output from the mark reading unit and is configured: (i) to obtain the quality score associated with the at least one mark read by the reading unit, and (ii) to cause the finisher to reject the paper product corresponding to one of the plurality of paper web sections when the quality score of the at least one mark read by the reading unit has an action value. ### Claim 33 (depends on 32) The system of claim 32, wherein the quality score is based on an inter-relationship of the web properties in one of the plurality of sections of the paper web. ### Claim 34 (depends on 33) The system of claim 33, wherein an action value is assigned as the quality score when inter-relationship of the web properties results in an unacceptable quality defect. ### Claim 35 (depends on 32) The system of claim 32, wherein the web properties include web defects. ### Claim 36 (depends on 35) The system of claim 35, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 37 (depends on 32) The system of claim 32, wherein the web properties include at least one of moisture content, basis weight, and tensile strength. ### Claim 38 (depends on 32) The system of claim 32, wherein the reading unit includes a light source to illuminate a portion of the paper web having the at least one of the plurality of marks and a camera to visually identify the at least one of the plurality of marks. ### Claim 39 (depends on 38) The system of claim 38, wherein the light source is an ultraviolet light source. ### Claim 40 (depends on 32) The system of claim 32, wherein the mark reading unit reads the at least one of the plurality of marks on the paper web as the paper web is being unwound from the parent roll. ### Claim 41 (depends on 40) The system of claim 40, wherein the mark reading unit is positioned downstream from the unwind stand and prior to the finisher. ### Claim 42 (depends on 41) The system of claim 41, wherein the mark reading unit is positioned at a bowed roll. ### Claim 43 (depends on 32) The system of claim 32, further comprising a plurality of web analysis units. ### Claim 44 (depends on 32) The system of claim 32, wherein the web analysis unit comprises a camera and a light source for inspecting the paper web. ### Claim 45 (depends on 44) The system of claim 44, wherein the web analysis unit inspects for web defects. ### Claim 46 (depends on 45) The system of claim 45, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 47 (depends on 32) The system of claim 32, wherein the web analysis unit comprises a web property scanner for identifying properties in the web. ### Claim 48 (depends on 47) The system of claim 47, wherein the web properties include at least one of moisture content and basis weight. ### Claim 49 (depends on 32) The system of claim 32, wherein the marking unit applies ink to the paper web. ### Claim 50 (depends on 49) The system of claim 49, wherein the applied ink is visible under ultraviolet light. ### Claim 51 (depends on 32) The system of claim 32, wherein the finisher includes a rewinder and the paper product rejected is a log of paper. ### Claim 52 (depends on 32) The system of claim 32, wherein the finisher includes a folder and the paper product rejected is a stack of folded paper product. ### Claim 53 (depends on 32) The system of claim 32, wherein the quality score is based on the web properties in one of the plurality of sections of the paper web. ### Claim 54 (depends on 53) The system of claim 53, wherein the web properties include web defects. ### Claim 55 (depends on 54) The system of claim 54, wherein an action value is assigned as the quality score when at least one web defect in the one of the plurality of sections of the paper web is an unacceptable quality defect. ### Claim 56 (depends on 54) The system of claim 54, wherein the web defects include at least one of a hole, a tear, a wrinkle, a web break, and a chemical coating streak. ### Claim 57 (depends on 53) The system of claim 53, wherein the web properties include at least one of moisture content, basis weight, and tensile strength. ### Claim 58 (depends on 57) The system of claim 57, wherein an action value is assigned as the quality score when at least one web property in the one of the plurality of sections of the paper web is an unacceptable quality defect.