JPH08127446A - Method and device for removing defect - Google Patents

Abstract

PURPOSE: To specify a defect position with high precision by a method wherein based on an expansion and contraction amount of a web on which printing and other processing are applied, detecting defect position data detected at a working process is corrected and computed to obtain corrected defect position data. CONSTITUTION: When a defect occurs at a working process, an indication tape to indicate a defect is inserted in the end of a web having a defect part by an automatic tape insertion device. Further, at a process managing terminal 3, defect information is collected classified by a processed roll and defect information is transferred to a server 4 at a factory. When, at the process management terminal 2 of a defect removing device 1, an operator demands the factory server 4 to transfer defect information of a processed roll and expansion contraction data of a processed roll to remove a defect, computation to correct a defect position based on a detecting defect position and expansion contraction data is executed to determine corrected defect position data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to print processing defect information (contents and position) in roll units collected in a production machine for obtaining a roll-shaped product by printing or other processing on a web such as paper or plastic film. )On the basis of,
The present invention relates to a method and an apparatus for removing defects in a defect removing process that is a post process. In particular, the position data in the defect information is corrected in consideration of the amount of expansion and contraction of the web, and the web transfer speed in the defect removal step is corrected by the corrected position data.
The present invention relates to a defect removal method and device for controlling stop positions and collecting data of defect removal results (position and removal amount).

[0002]

2. Description of the Related Art In a production machine, when a web such as paper or plastic film is printed or otherwise processed to obtain a roll-shaped product, the web is stretched or shrunk in the process. Originally, webs such as paper and plastic film are stretched by tension in the manufacturing process, and have stretching strains regardless of size.
If annealing is performed under appropriate conditions (tension, temperature, time), stretching strain is released and expansion and contraction occur. Also in the processing step, the web is stretched or contracted due to the fact that a tension or heat history characteristic of the processing step is applied, or a surface layer is formed on the web, and the surface layer exerts a force on the base material of the web. To be done.

Therefore, in the web processing step, the length and position of the web are measured on the production machine that performs the processing, but even if the same web roll is used on another production machine in the subsequent step, the length and position of the web will be measured. There will be a difference in the measured value of the position. Therefore, when removing defects, it is necessary to correct the defect position information and the defect removal information, but conventionally, the operator manually corrects the information in each process. . Further, in special cases, a mark (address) indicating an absolute position is written on the web so that the position on the web can be specified even if there is an influence of expansion and contraction.

[0004]

However, the method of manually inputting the operator has a problem that it is troublesome and sufficient accuracy cannot be obtained. In the method of marking the mark indicating the absolute position on the web, a space for marking the mark is required. In addition, there was a problem that it could not be implemented in many cases due to process restrictions. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a defect removal method and device to which a defect position information correction method is applied, which is labor-saving, accurate, and widely applicable without restriction.

[0005]

The above object can be achieved by the present invention described below. That is, the present invention, in the method of removing defective portions from the processed product in roll units obtained by printing or other processing on the web, the detected defective position data detected in the processing step based on the amount of expansion and contraction of the web. A defect removal method having a defect position correction process of performing a correction calculation to obtain corrected correction defect position data. Further, the present invention, in a process management terminal of a defect removing device connected to a server computer by a communication line, a detection data input process of inputting the expansion / contraction amount and the detected defect position data from the server computer to the process management terminal, A defect removal method comprising: the defect position correction process obtained by performing a correction calculation on the correction defect position data in the process control terminal. Further, the present invention provides a correction data input process of inputting the correction defect position data to the defect removing device from the process management terminal, and transferring the web by the defect removing device near the correction defect position based on the correction defect position data. And a deceleration process of decelerating the speed. Further, the present invention is a defect removal method having a defect removal information output step of outputting the defect removal position and the removal amount of the defect by the defect removal device to the process management terminal from the defect removal device. The present invention also provides
A defect removal method including an actual measurement data output process of outputting measured defect position data measured by the defect removal device to the process management terminal from the defect removal device. Further, the present invention is an apparatus for removing a defective portion from a processed product in roll units obtained by printing or other processing on a web, and correcting detected defective position data detected in the processing step based on the amount of expansion and contraction of the web. A defect removing device having a defect position correcting means for obtaining corrected defect position data which has been calculated and corrected. Further, the present invention is an apparatus for removing a defective portion from a processed product in roll units obtained by printing or other processing on a web, and based on the actually measured actual defective position data, the detected defective position detected in the processing step. A defect removing device having an actually measured defect position correcting means for correcting data or correction defect position data obtained by correcting the data based on the amount of expansion and contraction of the web.

[0006]

According to the defect removing method of the present invention, a method of removing a defective portion from a processed product in roll units obtained by printing or other processing on a web has a defective position correcting process. In the position correction process, the defective detection position data detected in the processing step is corrected and calculated based on the expansion / contraction amount of the web, and the corrected defective position data that has been corrected is obtained. Further, according to the defect removal method of the present invention, in the process control terminal of the defect removal device connected to the server computer through the communication line, the expansion / contraction amount and the detected defect position data are input to the process control terminal from the server computer in the detection data input process. Then, the defective correction position data is corrected and calculated in the defective position correction process of the process control terminal. Further, according to the defect removal method of the present invention, the corrected defect position data is input to the defect removal device from the process management terminal in the correction data input process, and the defect removal device near the corrected defect position based on the corrected defect position data in the deceleration process. The transfer speed of the web by is reduced. Further, according to the defect removal method of the present invention, the defect removal position and the removal amount of the defect by the defect removal device are output from the defect removal device to the process management terminal in the defect removal information output process. Further, according to the defect removing method of the present invention, the actually measured defect position data actually measured by the defect removing device in the process of outputting the actually measured data is output from the defect removing device to the process management terminal. Further, according to the defect removing apparatus of the present invention, the apparatus for removing the defective portion from the processed product in roll units obtained by printing or other processing on the web has the defective position correcting means. The means corrects and calculates the defective detection position data detected in the processing step based on the amount of expansion and contraction of the web to obtain corrected defective position data.
Further, according to the defect removing device of the present invention, the device for removing the defective portion from the processed product in roll units obtained by printing or other processing on the web has the actually measured defective position correcting means, and is actually measured. Based on the measured defective position data, the detected defective position data detected in the machining process or the corrected defective position data obtained by correcting the detected defective position data based on the expansion / contraction amount of the web is corrected. Therefore, by applying the actually-measured defect position correcting means in the initial stage of defect removal, the defect position can be specified more accurately in subsequent defect removal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The defect removing method and apparatus of the present invention will be described below with reference to the preferred embodiments. FIG. 1 is a diagram showing the configuration of a system for executing the defect removing method and apparatus of the present invention. In FIG. 1, 1 is a defect removing device of the present invention,
Reference numeral 2 is a process control terminal of the defect removing apparatus 1, and 3 is a process control terminal of a production machine that processes a web. The process control terminals 2 and 3 are a computer main body and peripheral devices such as a display, a keyboard, a mouse, a storage device, and a LAN (Local).
Area Network) It is composed of connected devices. Also,
4 is a factory server consisting of a server computer connected to the process control terminal through a communication line and its peripheral devices, 5 is a quality information database of the factory server 4, 6 is a process information database of the factory server 4, 7 is the factory server 4 and production. It is a communication line for connecting management terminals and transferring data files to each other.

The factory server 4 manages data necessary for production. Data includes raw material inventory status before processing, storage status and quality of intermediate products that have not undergone the final process and finished products that have completed the final process, and data related to the operating status of each production machine. It includes data on manufacturing schedules. In addition, the process control terminals 2 and 3 are provided in each production machine.
Data such as operating status is collected and transferred to the factory server 4. Further, the production instruction data and the like are transferred from the factory server 4 to the process control terminals 2 and 3. Further, the defect removing device decelerates the machine in the vicinity of the defect based on the defect information from the process control terminal, finally detects the defect indication tape, and automatically removes the defect.

FIG. 2 is a view showing expansion / contraction data for each specification process stored in the process information database 5 as a table. In FIG. 2, the production product of the winding specification A becomes a product by the processing steps 1 to 4 and then proceeds to the defect removal step, but in the step 1, it is shown that the web extends by 0.2%. . Therefore, the defect position data in the defect information (content, position) recorded in step 1 is 1.00.
It indicates that the defective position data becomes correct when the number is doubled. Further, it is shown that the web is elongated by 0.3% in the step 2, 0.2% in the step 3, and 0.4% in the step 4. In addition, in FIG. 2, the product of the winding specification B grows by −0.1% in the process 1 and by −1% in the process 2, that is, 0.1 in the process 1.
%, In step 2 it is shown to shrink by 1%.

Next, the operation of the defect removing method and apparatus of the present invention will be described. FIG. 3 is a flow chart showing the flow of processing by the defect removing method and apparatus of the present invention. The operation of the defect removal method and apparatus will be described with reference to FIG. First, when a defect occurs in the previous step (for example, step 1 to step 4 shown in FIG. 2), an indicating tape indicating the defect is inserted into the edge of the web of the defective portion by the automatic tape inserting device. This instruction tape is inserted so as to stick out of the roll so that the position can be confirmed from the outside when the web is wound into a roll. Further, the process control terminal 3 (provided for each production machine) collects defect information (contents, position) for each processed roll, and the defect information is input to the factory server 4 by the operator's transfer instruction input. It is transferred (S1).

Next, the operator requests the factory server 4 in the process control terminal 2 of the defect removing apparatus 1 to transfer the defect information of the processed roll for defect removal. The factory server 4 calls up the corresponding defect information from the quality information database 5 and transfers it through the communication line 7, and the process control terminal 2 inputs the defect information. In addition, the operator is the process control terminal 2
In step 2, the factory server 4 is requested to transfer the expansion / contraction data of the processed roll for defect removal. The factory server 4 calls the corresponding expansion / contraction data from the process information database 6 and transfers it via the communication line 7, and the process management terminal 2 inputs the expansion / contraction data (S2). The defect information includes the detected defect position data which is the position on the web of the defect detected in the previous process. When the operator inputs an instruction for defective position correction calculation, the process management terminal 2 corrects the defective position based on the detected defective position data and the expansion / contraction data that is the expansion / contraction amount data of the web (described later).
Is performed and defective correction position data is obtained (S3).

When the operator requests input of the correction defect position data in the defect removing device 1, the correction defect position data is input from the process control terminal 2 to the defect removing device 1 (S4). The operator sets the processed roll, which is to be subjected to defect removal, in the sheet feeding section (not shown) of the defect removal apparatus 1. Then, the web is pulled out from the processed roll, and the end of the web is fixed to the paper tube of the paper discharge portion (not shown) through the web passage of the defect removing device 1. At that time, if the amount of pulled-out web is not the same as the distance of the web path of the defect removing apparatus 1, the operator inputs the difference to the defect removing apparatus 1. This input data is added as an offset value when the position of the web is counted in the defect removing apparatus 1.
When the operator presses the operation start button switch of the defect removing apparatus 1, the operation of the defect removing apparatus 1 is started. The web of the part having no defect is transported at high speed and is rewound (S5).

The distance traveled by the web is measured in the defect removing device 1, and the defect removing device 1 determines the timing at which the web of the defective portion is unwound from the processed roll from the traveling distance data and the correction defect position data. In step S6, it is constantly monitored and it is determined whether or not the vicinity of the defective position has been reached (S6). When the defect position approaches, the defect removing device 1 performs deceleration operation and stops so that the defect is located at a predetermined position of the defect removing device 1 (S7). From the beginning to the end of the defect on the web is removed either by the operator or automatically by the defect removal device 1. The removed amount is accurately counted by the defect removing device 1 as the amount of the web drawn from the processed roll, and the removal amount data is stored in the defect removing device 1. When the removal is performed by the operator, the defective start position and the end position are visually confirmed, and the stop position is corrected in some cases. The position visually confirmed is the defect removal device 1 as the actual measurement data regardless of the correction.
(S8).

When the operator removes the defect and obtains the actual measurement data, the actual value of the amount of expansion and contraction of the web is obtained from the actual measurement data. Therefore, whether the correction based on the actual measurement data is performed at that time is determined by the operator. Is determined by (S9). When performing correction based on the actual measurement data, the process proceeds to S10, where the actual measurement defect position correction is executed,
After that, the defect is removed based on the defect position data obtained by the actual defect position correction. The target data for the actual measurement defective position correction is the correction defective position data input in S4, but the detection defective data can be input to correct the detection defective data (S10).

If the correction based on the measured data is not performed, the process proceeds to S11 (S9). In S11, the defect removing apparatus 1 determines whether or not all the defects have been removed from the processed roll based on the defect information (S1).
1). If there is a defect that has not been removed, the process returns to S5, and the defect removal device 1 is operated at high speed. Further, when all the defects are removed, the defect removing device 1 unwinds all the web from the processed roll of the paper feed unit and winds it around the defect removed roll of the paper discharge unit at high speed. The operator moves the defect-removed roll from the paper discharge section of the defect removal device 1 to a predetermined location and stores it. Further, the operator inputs an instruction to output the defect removal information stored in the defect removal device 1 to the process control terminal 2 and causes the defect removal device 1 to execute it. By outputting the defect removal information, it is possible to know where the spliced part of the web where the defect has been removed is located and the length of the original paper of the roll (S12). Finally, the operator inputs an instruction to output the actual measurement data stored in the defect removing apparatus 1 to the process control terminal 2 and causes the defect removing apparatus 1 to execute the instruction input. The expansion / contraction data can be corrected based on the measured data, and by doing so, the stopping accuracy at the defective position in the defect removing apparatus 1 will be further improved (S13). After that, when there is a new processed roll for removing defects, the above processing flow may be repeated from the beginning.

The expansion / contraction data and defective position correction shown in FIG. 2 will be described in detail. Scale data is
It is natural to think that it is obtained by the ratio of the length of the web before and after the web is processed in the production machine. According to this definition, it is calculated from the input length obtained by measuring the web length at the paper feed unit and the finishing length obtained by measuring the web length at the paper discharge unit by the following mathematical formula 1. .

[Equation 1] (Expansion / contraction data) = ((finishing length) / (input length)-
1) × 100 Of course, the defective position correction according to the present invention can be performed based on this expansion / contraction data, but in reality, the length measurement is not strictly performed in the paper feed unit and the paper discharge unit, and it is not always the “finish length”. And "input length" data is not available. Therefore, from the length that the production machine has transferred the web, that is, the measured length that the machine signal is extracted from the production machine and measured by the machine signal, and the actual length that is the length of the product actually obtained in the processing step The expansion / contraction data is obtained by the following equation 2.

[Equation 2] (Expansion / contraction data) = ((entity length) / (measurement length)-
1) x 100

Usually, the defective position is recorded based on the above measurement length. Therefore, the calculation of the defective position correction is performed in consideration of how the defective position is recorded in the process control terminal. If the expansion / contraction data is obtained as data including the difference between the actual expansion / contraction amount of the web and the length measurement method of the web, the calculation of defective position correction is simplified as shown in the following Expression 3.

[Formula 3] (Correction defective position data) = (P1 + 1) × (P2 + 1) × ... (Pn + 1) × (detection defective position data) where P1 is expansion / contraction of step 1 where the detection defective position data was obtained 1/100 of the data (%), P2 ... Pn are values that are 1/100 of the expansion / contraction data (%) in the subsequent processes, Process 2 ... Process n.

As a matter of course, the detection failure position data is data obtained from the web position of the roll core portion as a starting point, and in the next step, the web position of the outermost peripheral portion of the roll is a new roll. It becomes the core part of. Further, as the process progresses, the offset of the detection failure position data corresponding to the web path of the production machine in each process, the operator deleting the end of the web for the convenience of work,
Changing the origin of the web position measurement occurs. Equation 3 shows the principle, and these matters are not taken into consideration, but the actual calculation of the defective position correction is performed in consideration of these matters. Although the expansion / contraction data for each winding specification is shown in the example of FIG. 2, it can be quantified based on the material and thickness of the web, the processing conditions (temperature, tension) of the production machine, and so on. Thereby, the expansion / contraction data of the new specification can be calculated.

Next, how to use the defect removing method and apparatus of the present invention will be described by taking a processing system for a soft packaging material as an example. FIG. 4 is a diagram showing a system configuration example incorporating the defect removing method and apparatus of the present invention. In FIG. 4, 8 is a server computer, 9 is a logistics computer which is connected to the server computer 8 through a communication line and controls equipment for transporting and storing the unprocessed rolls 1, processed rolls 3 and the like, and 10a to 10c are processing devices. They are a printing machine, a coating machine, and a slitter, respectively. Further, 12a and 12b are the printing machine 10a,
An inspection device provided in the coating machine 10b, 11 is a defect removing device, 14 is conveying means for winding material, 15 is accommodating means for winding material, and 13a to 13d are connected to the server computer 8 through a communication line. The display is connected to each of the process control terminals, and the operator of the processing apparatus can proceed with the work while checking the information such as the processing schedule displayed on each display.

The operation of the above configuration will be described. The server computer 8 stores data on the processing schedules and work schedules for each processing apparatus, defect removal apparatus, and the like. The data includes items, work schedules, operating conditions of the equipment, planned quantity of original paper, winding materials using paper or plastic web as rolls, auxiliary materials such as printing plates, inks, coating liquids, etc.
Etc. are included. The data of the processing schedule and the work schedule are sent from the server computer 8 to the process control terminals 13a to 13d, and the necessary information therein is displayed on each display. Each operator recognizes the work to be performed next while looking at this display, and executes the scheduled work. Further, information such as the quantity and quality of products produced by production machines is output from the process management terminal 13 to the server computer 8, and when raw materials are stored or when the production products are transported from each processing device to the storage means and stored. The physical distribution information such as is output to the server computer 8 by the physical distribution computer 9. Therefore, the server computer 8 stores data on the stock status of the winding material and the auxiliary material, and the corresponding data is the distribution computer 9
It is also stored in.

Here, the case where the operator starts the production work of a new item will be described. First, when the operator manually gives an instruction (item switching instruction) to the server computer 8 from the process terminal device or the operation panel of the production machine, the server computer 8 issues a command to the physical distribution computer 9, and the physical distribution computer 9 is unattended. Controls the carriage to convey new winding material and auxiliary material to the specified place near the production machine, and also the previous winding material (remaining unprocessed roll, processed roll) and auxiliary material (printing plate). , Residual ink, residual coating liquid) is collected and transported to the designated storage place. At that time, the process data for each processed roll regarding the previously processed roll is transferred from the process terminal device to the server computer 8 and stored therein. As described above, the process data includes the inspection data output from the inspection device in the edited form. Next, the operator sets new winding material and auxiliary material on the production machine and adjusts the production conditions so that a good product is produced. When the standard paper is produced, the operator manually inputs the start of the production of the standard paper to the process terminal device 13.

Next, in the system configuration of FIG. 4, a case of performing defect removal work will be described. When removing defects in roll-shaped products, there are cases where defects are removed from a wide processed roll before slitting and cases where defects are removed from a narrow processed roll after slitting. . Usually, the former method is used when the defect extends over the entire width of the web such as poor color tone, and the latter method is used when the defect is present only in a part of the web flow direction such as a doctor line. The defect removal device is a device that automatically joins the original paper portion excluding the defective portion, and a device that removes the defective portion and joins the original paper portion by performing a visual inspection while a person refers to the inspection data of the previous process. Rewinding device) etc. FIG.
In this case, the defect information regarding the processed roll is stored in the process management terminal 13d of the defect removing device 11 by the server computer 8
Is transferred from the device and the defect information is used to remove the defect.

First, the operator sets the processed roll to be inspected in the paper feed section of the defect removing device. Further, the operator inputs the item of the processed roll, the roll number and the like at the process control terminal 13d, sets the defect information and the expansion / contraction data in the defect removing device 11, and calculates the defect position correction.
Next, when the operator starts the defect removing device 11, the defect removing device 11 unwinds the processed roll and winds it up to the paper discharge section. Then, the transfer of the web is decelerated immediately before the web of the defective part in the defect information is unwound. The operator visually inspects the web and inputs an input to the defect removing device 11 to stop the transfer of the web when the defective portion reaches just before the splicer portion. In the splicer portion, the end of the downstream web is pressed and the upstream web is wound around the defective paper discharge portion. When the operator inputs a defect feed to the defect removing device 11, the defect removing device 11 recognizes the defective end portion of the web from the defect information, and transfers the web when the defective end portion is wound around the defective paper discharge portion. To stop. The defective web is cut off at the splicer portion, and the upstream and downstream web ends are connected. Then, the processed roll is unwound to the next defective portion and wound up to the paper discharge section. By repeating the above, the defect is removed.

[0024]

As described above, according to the present invention, there is provided a defect removal method and apparatus to which a defect position information correction method is applied, which is labor-saving, accurate, and widely applicable without restriction. It According to the defect removal method of the present invention,
The method of removing defective parts from the processed product in roll units obtained by printing or other processing on the web has a defective position correction process, and the processing process based on the amount of expansion and contraction of the web by the defective position correction process. The defective detection position data detected in step S1 can be corrected and calculated to obtain corrected defective position data, and the accuracy of the defective position data is good. Further, according to the defect removal method of the present invention, in the process control terminal of the defect removal device connected to the server computer through the communication line, the expansion / contraction amount and the detected defect position data are input to the process control terminal from the server computer in the detection data input process. Then, correction defective position data can be obtained by performing a correction calculation in the defective position correcting process of the process control terminal. Further, according to the defect removal method of the present invention, the corrected defect position data is input to the defect removal device from the process management terminal in the correction data input process, and the defect removal device near the corrected defect position based on the corrected defect position data in the deceleration process. It is possible to reduce the speed of transporting the web by means of, so that it is easy to detect an instruction tape or a defect, and the speed reduction of the machine is automatically minimized, which is efficient. Further, according to the defect removal method of the present invention, the defect removal position and the removal amount of the defect by the defect removal device are output from the defect removal device to the process management terminal in the defect removal information output process, and the removal data is automatically collected. It can be carried out. Further, according to the defect removal method of the present invention, the measured defect position data actually measured by the defect removal device in the process of outputting the measured data is output from the defect removal device to the process management terminal, and the accuracy of the web expansion / contraction data is good. Further, according to the defect removing apparatus of the present invention, the apparatus for removing the defective portion from the processed product in roll units obtained by printing or other processing on the web has the defective position correcting means, and the defective position correction is performed. The means can correct the defective detection position data detected in the processing step based on the amount of expansion and contraction of the web to obtain corrected defective position data, and the accuracy of the defective position data is good.
Further, according to the defect removing device of the present invention, the device for removing the defective portion from the processed product in roll units obtained by printing or other processing on the web has an actually measured defective position correcting means, and is actually measured. Based on the measured defective position data, the detected defective position data detected in the processing step or the corrected defective position data obtained by correcting the detected defective position data based on the amount of expansion and contraction of the web can be corrected. Therefore, by applying the actually-measured defect position correcting means in the initial stage of defect removal, the defect position can be specified with higher accuracy in subsequent defect removal.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a system that executes a defect removal method and apparatus of the present invention.

FIG. 2 is a diagram showing, as a table, expansion / contraction data for each specification process stored in a process information database 5.

FIG. 3 is a flowchart showing the flow of processing by the defect removing method and apparatus of the present invention.

FIG. 4 is a diagram showing a system configuration example incorporating a defect removal method and apparatus of the present invention.

[Explanation of symbols]

1, 11 Defect removal device 2, 3, 13a, 13b, 13c, 13d Process control terminal 4 Factory server 5 Quality information database 6 Process information database 7 Communication line 8 Server computer 9 Logistics computer 10a, 10b, 10c Processing device 12a, 12b Inspection device 14 Conveying means 15 Housing means

Claims (7)

[Claims] 1. A method for removing a defective portion from a roll-shaped processed product obtained by printing or other processing on a web, in which detected defective position data detected in the processing step is corrected based on the amount of expansion and contraction of the web. A defect removal method comprising a defect position correction process for obtaining corrected defect position data that has been calculated and corrected. 2. A process control terminal of a defect removing device connected to a server computer through a communication line, wherein a detection data input process of inputting the expansion / contraction amount and the detected defect position data from the server computer to the process control terminal. 2. The defect removal method according to claim 1, further comprising: a defect position correction process that is performed by performing a correction calculation on the correction defect position data in the process control terminal. 3. A correction data input process of inputting the correction defect position data to the defect removing device from the process control terminal, and a web transfer by the defect removing device near the correction defect position based on the correction defect position data. 3. The defect removing method according to claim 2, further comprising a deceleration process of decelerating the speed. 4. A defect removal information output step of outputting the defect removal position and the removal amount of the defect by the defect removal device to the process control terminal from the defect removal device. Defect removal method. 5. The defect removal according to claim 2, further comprising: an actual measurement data output process of outputting actually measured defect position data actually measured by the defect removal device to the process control terminal from the defect removal method. Method. 6. An apparatus for removing a defective portion from a processed product in roll units obtained by printing or other processing on a web, and correcting detected defect position data detected in the processing step based on the amount of expansion and contraction of the web. A defect removing apparatus comprising: a defective position correcting unit that obtains corrected defective position data that has been calculated and corrected. 7. An apparatus for removing a defective portion from a roll-shaped processed product obtained by printing or other processing on a web, and a detected defective position detected in a processing step based on actually measured actual defective position data. A defect removing apparatus comprising: an actual measurement defect position correction means for correcting data or correction defect position data obtained by correcting the data based on an amount of expansion and contraction of a web.