JP2013028409A - Roller cleaning film and roller cleaning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller cleaning film capable of cleaning a roller arranged in a web carrying device regardless of a structure of the roller, and a roller cleaning method using the cleaning film.SOLUTION: This roller cleaning film is used for cleaning the roller arranged in the web carrying device. The roller cleaning film is adhered via an adhesive surface 12A having adhesion to a surface of a sheet-like material carried by the web carrying device, and includes an adsorbing surface 11A having adhesion on a surface on the opposite side of the adhesive surface 12A. The adhesion of the adhesive surface 12A and the adhesion of the adsorbing surface 11A are set in the relationship of the adhesion of the adhesive surface 12A>the adhesion of the adsorbing surface 11A.

Description

  The present invention relates to a roller cleaning film used for cleaning a roller of a web conveyance device, and a roller cleaning method using the cleaning film.

  While transporting sheet-like material such as paper, resin, and metal wound up in a roll shape, a web transport device that performs predetermined processing on the sheet-like material as a slitter device, coating device, etc. is a paper product, a resin product, Widely used in the manufacture of metal products and electronic components.

  Of these, in the case of a coating apparatus, for example, as shown in FIG. 6, an unwinding unit 51 for feeding the wound sheet-like material M, and a coating unit for applying a predetermined coating material to the unwound sheet-like material M 52, a drying unit 53 for drying and fixing (fixing) the applied coating material on the sheet-like material M, and a winding unit 54 for winding the sheet-like material M on which the coating material is dried and fixed. Usually, such a coating apparatus has a plurality of rollers in each of the parts 51 to 54 for conveying the sheet-like material M fed from the unwinding part 51 to the winding part 54, and the total number of these rollers is small. With a dozen or more devices, there will be a hundred or more devices or more.

  By the way, in recent years, as the quality requirements of products have increased, the function of the web transport device has been improved. However, the deposits that have adhered to the transport rollers are transferred to the sheet-like material transported by the web transport device. Scratching or getting involved is becoming a problem in product management. That is, there is a growing risk that a product is judged to be defective due to such a problem. Therefore, in order to prevent product defects due to such roller deposits, it is necessary to clean the rollers of the web transport device. However, the rollers incorporated in the web transport device may vary depending on the equipment arranged around the rollers. In many cases, external cleaning is not easy. This becomes more prominent as the total number of such rollers increases. For this reason, conventionally, a roller cleaning method that can easily clean the deposits on the roller has also been proposed, and an example thereof is described in Patent Document 1.

  The roller cleaning method described in Patent Document 1 first prepares a roller cleaning sheet in which an adhesive layer made of urethane-based pressure-sensitive adhesive rubber is formed on both front and back surfaces. The cleaning sheet is transported in a timely manner to a transport device in which a plurality of pairs of upper and lower feed rollers are arranged side by side to form a transport line for a metal plate, and the dirt adhering to the peripheral surface of each feed roller is adhered to the adhesive layer. I will let you.

Japanese Patent Laid-Open No. 5-178446

  According to the roller cleaning method described in Patent Document 1, a specific roller such as a pinch roller or a feed roller having a structure for applying pressure to the sandwiched roller cleaning sheet can surely be cleaned. It becomes. However, if a roller that does not sandwich the sheet-like material that is often provided in the web conveyance device is placed on the surface, it cannot be cleaned.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a roller cleaning film that can clean a roller provided in a web conveyance device regardless of the structure of the roller, and An object of the present invention is to provide a roller cleaning method using the cleaning film.

  In order to solve the above problems, the invention described in claim 1 is a roller cleaning film used for cleaning a roller provided in a web conveyance device, and is a sheet-like material conveyed by the web conveyance device. The adhesive surface is adhered to the surface of the adhesive surface via an adhesive surface and has an adsorption surface having an adhesive force on the surface opposite to the adhesive surface, and the adhesive force of the adhesive surface and the adhesive force of the adsorption surface Is set so that the adhesive strength of the adhesive surface> the adhesive strength of the attracting surface.

  In order to solve the above-mentioned problem, the invention described in claim 6 includes a roller cleaning film adhered to the surface of a sheet-like material conveyed by the web conveyance device, and a roller provided in the web conveyance device. It is the cleaning method of the roller to clean, Comprising: It makes it a summary to use the film for roller cleaning as described in any one of Claims 1-5 as a film for roller cleaning.

  According to such a configuration or method, the web transport device is configured so that the suction surface of the roller cleaning film bonded to the transported sheet-like material comes into contact with the surface of the roller as the sheet-like material is transported and The surface of the roller is cleaned so that deposits and the like adhering to the surface of the roller are removed from the surface by the adhesive force of the surface. Thereby, it is suppressed that the deposit | attachment of a roller causes the defect etc. which originate in the deposit | attachment to the product processed from the sheet-like material. If the sheet material to be conveyed is used as it is for cleaning the roller, the time required for roller cleaning can be greatly shortened, such as eliminating the trouble of removing the sheet material from the web conveying device during roller cleaning. In addition, the waste of the sheet-like material generated during cleaning is reduced.

  Further, by providing a roller cleaning film on the sheet material conveyed by the web conveying device, all the rollers in contact with the sheet material can be cleaned with the roller cleaning film. Furthermore, since it is roller cleaning using conveyance by the apparatus of the sheet-like material conveyed by a web conveyance apparatus, even if it is a roller which is difficult to clean from the outside, it can be cleaned easily. As a result, the time required to clean the rollers can be shortened because the time for avoiding the equipment around the device is not required, as compared with the case where the rollers are cleaned from the outside of the device.

The gist of the invention described in claim 2 is that in the roller cleaning film according to claim 1, the adhesive force of the suction surface is set to 0.05 to 0.3 [N / cm ² ]. To do.
According to such a configuration, the roller cleaning film can adsorb adhering matter such as dust adhering to the surface of the roller to be cleaned and remove it from the surface of the roller, and the film adsorbing surface. Is prevented from remaining on (transferred to) the surface of the roller. Also, the deposit once adhered to the roller cleaning film is suitably held by the cleaning film, and the deposit held by the cleaning film is prevented from being reattached to other rollers. Will be able to. Thereby, cleaning of the roller of a web conveyance apparatus can be performed more suitably.

  According to a third aspect of the present invention, in the roller cleaning film according to the first or second aspect, the adhesive force of the adhesive surface is set to be twice or more the adhesive force of the suction surface. The gist.

  According to such a configuration, the roller cleaning film peels off from the sheet-like material and adheres to the roller, or the suction surface away from the sheet-like material cannot properly clean the roller. Can be prevented. Thereby, the roller cleaning with the roller cleaning film can be suitably performed.

The invention according to claim 4 is the roller cleaning film according to any one of claims 1 to 3, wherein the adhesive force of the adhesive surface is set to 2 [N / cm ² ] or more. The gist.

  According to such a configuration, the roller cleaning film peels off from the sheet-like material and adheres to the roller, or the suction surface away from the sheet-like material cannot properly clean the roller. Is more preferably prevented. Thereby, cleaning of the roller of a web conveyance apparatus can be performed still more suitably.

  The invention according to claim 5 is the roller cleaning film according to any one of claims 1 to 4, wherein a surface of the roller to be cleaned is a metal, and the sheet-like material to be bonded is The gist is that it is made of a resin material.

  According to such a configuration, when a resin material is transported by a web transport device having metal rollers, a roller cleaning film can be applied to cleaning the rollers. In many cases, a metal roller is employed in the web conveyance device, and the conveyance object of the web conveyance device is often a resin material. Thus, this roller cleaning film can be used in many web conveyance devices.

The gist of the invention described in claim 7 is that, in the roller cleaning method according to claim 6, the roller cleaning films are respectively bonded to both surfaces of the sheet-like material to be conveyed.
According to such a method, since the rollers provided on both sides of the sheet-like material can be collectively cleaned in the web conveyance device, the time required for roller cleaning can be further shortened.

The gist of an eighth aspect of the present invention is the roller cleaning method according to the seventh aspect, wherein each of the roller cleaning films is alternately bonded to both surfaces of the sheet-like material.
According to such a method, since it becomes possible to suppress the thickness of the sheet-like material in a state where the roller cleaning film is bonded, the sheet-like material or roller cleaning film conveyed by the web conveying device. It is possible to prevent unnecessary pressure from being applied to the roller, and to perform roller cleaning appropriately.

  A ninth aspect of the present invention is the roller cleaning method according to any one of the sixth to eighth aspects, wherein the length of the roller cleaning film is the maximum diameter of the rollers to be cleaned. The gist is that the length is equal to or greater than the outer peripheral length of the roller.

  According to such a method, since the entire circumference of the roller can be cleaned with the roller cleaning film, the roller cleaning can be suitably performed.

  According to the roller cleaning film and the roller cleaning method using the cleaning film according to the present invention, the roller provided in the web transport device can be cleaned regardless of the structure of the roller. Become.

The top view which shows the planar structure about one Embodiment of the film for roller cleaning which concerns on this invention. Sectional drawing which is a film for roller cleaning of the embodiment, and shows the cross-section in the 2-2 line of FIG. The schematic diagram which shows the aspect which adhere | attached the film for roller cleaning of the embodiment on the sheet-like material. The schematic diagram which shows typically the aspect for evaluating the film for roller cleaning of the embodiment. The figure which shows the result of having evaluated the film for roller cleaning of the embodiment in a table | surface. The schematic diagram which shows typically the schematic structure about the coating apparatus as an example of the conventional web conveyance apparatus.

Hereinafter, the roller cleaning film according to the present invention will be described with reference to FIGS.
The roller cleaning film 10 is bonded to a sheet material M made of polyethylene terephthalate resin (PET) and conveyed through the web conveyance device together with the sheet material M and conveyed by the web conveyance device shown in FIG. By doing so, the roller provided in the web conveyance device is cleaned. Therefore, as shown in FIG. 1, the roller cleaning film 10 is formed in a planar rectangular sheet shape having a width W and a length L. The width W of the roller cleaning film 10 is a length in a direction orthogonal to the conveyance direction of the sheet material M, corresponds to the width of the sheet material M, and the length L is a direction along the conveyance direction. Which is longer than the longest outer peripheral length of the roller to be cleaned.

  As shown in FIG. 2, the roller cleaning film 10 has a thickness T in the thickness direction and a sheet-like base material 13 made of a resin material at the center in the thickness direction. The adsorption layer 11 is laminated on one surface of the material 13, and the adhesive layer 12 is laminated on the other surface of the base material 13. The adsorbing layer 11 has an adsorbing surface 11A formed on the surface opposite to the base material 13, so-called outer surface side, and the adhesive layer 12 is an adhesive surface on the surface opposite to the base material 13, so-called outer surface side. 12A is formed. That is, the roller cleaning film 10 is provided with the suction surface 11A on the surface that is one surface thereof, and the adhesive surface 12A is provided on the other surface, that is, the back surface that is the surface opposite to the suction surface 11A. Is provided.

  The base material 13 is comprised from the thin film of PET, what is called a resin film, for example. This resin film is the same as the sheet-like material M conveyed by the web conveying device. However, if the web conveying device can be conveyed together with the sheet-like material M, the thickness of the resin film may be different. The synthetic resin may be different.

  Since the adsorption layer 11 is made of an acrylic adhesive material, an adhesive force based on the adhesive material is generated on the adsorption surface 11A, and the substrate 13 is fixed so as not to peel from the substrate 13. ing. In addition, the adhesive force of the adsorption surface 11A is set to such a strength that it can be peeled off after being adhered to a roller provided in the web conveyance device.

  Since the adhesive layer 12 is made of an acrylic pressure-sensitive adhesive material, an adhesive force based on the pressure-sensitive adhesive material is generated on the adhesive surface 12A, and the base material 13 is fixed so as not to peel from the base material 13. ing. In addition, the adhesive force of the bonding surface 12A is set to a strength that does not peel from the bonded sheet-like material M.

  As described above, the suction surface 11A is set with a predetermined strength adhesive force to the roller, and the adhesive surface 12A is set with a predetermined strength adhesive force to adhere to the sheet-like material M. The adhesive strength and the adhesive strength of the adhesive surface 12A are set to different strengths. That is, the pressure-sensitive adhesive material constituting the adsorption layer 11 and the pressure-sensitive adhesive material constituting the adhesive layer 12 have different characteristics.

  Next, the roller cleaning film 10 bonded to the sheet material M will be described with reference to FIG. In FIG. 3, the sheet-like material M to be conveyed by the web conveying device has a width W in a direction orthogonal to the conveying direction (the arrow direction in the figure). Further, it is assumed that the roller having the maximum diameter Dm among the objects to be cleaned in the web transport device has an outer peripheral length Lm.

  Specifically, as shown in FIG. 3, each roller cleaning film 10 is adhered to the sheet-like material M via the adhesive surface 12 </ b> A so that the adsorption surface 11 </ b> A is disposed on the outer side, so that the sheet-like material M is disposed. Adhesive fixing (fixing). In other words, the roller cleaning film 10 has its width W aligned with the width W of the sheet-like material M, and its adhesive surface in a state where the length L is matched with the conveying direction of the sheet-like material M. It adheres to the sheet-like material M by 12A. The length L is set to a length equal to or longer than the outer peripheral length Lm of the roller to be cleaned. At this time, the roller cleaning film 10 is adhered to and adhered to the sheet material M so as not to include air between the roller cleaning film 10 and the sheet material M.

  In this state, when the roller cleaning film 10 is adhered, the web transport device transports the sheet-like material M by the rollers 15 and 16, so that the roller cleaning film 10 is also transported by the rollers 15 and 16. Is conveyed in the conveying direction. Each of the rollers 15 and 16 may be driven to convey the sheet-like material M or may be an undriven roller that assists in conveying the sheet-like material M. The surfaces of the rollers 15 and 16 are assumed to be metal.

  That is, in FIG. 3, when the roller cleaning film 10 adhered to the lower surface of the sheet-like material M reaches the roller 15, the suction surface 11 </ b> A is attracted to the surface of the roller 15 and then moves together with the surface of the roller 15. When leaving the roller 15, the roller cleaning film 10 peels the suction surface 11 </ b> A from the surface of the roller 15. On the other hand, the roller cleaning film 10 has a force in a direction that is opposite to the direction of the force to be peeled off from the surface of the roller 15, that is, a direction that is pulled off from the surface of the roller 15, that is, a direction that is peeled off from the sheet-like material M. Will be added. However, the suction surface 11A of the roller cleaning film 10 is fixed to the base material 13 so as not to be peeled off from the base material 13 of the roller cleaning film 10 and remain on the surface of the roller 15. It is prevented from remaining on the surface. Further, as the roller cleaning film 10, the adhesive force on the adhesive surface 12 </ b> A opposes the force in the peeling direction to maintain the adhesion to the sheet-like material M. That is, the adhesive force of the adhesive surface 12A is set to a strength that does not cause the roller cleaning film 10 to peel from the sheet-like material M, even when the suction surface 11A is peeled off from the roller 15. In addition, since the roller cleaning film 10 is repeatedly attracted and peeled to a plurality of rollers by being transported through the web transport device, the suction surface 11A is set with an adhesive force capable of repeating the attracting and peeling to the rollers. At the same time, the adhesive force that maintains the adhesion to the sheet-like material M is set on the adhesive surface 12A even if the adsorption and peeling to the roller is repeated.

  In FIG. 3, the roller cleaning film 10 bonded to the upper surface of the sheet-like material M causes the suction surface 11 </ b> A to be sucked and peeled from the roller 16. This adsorption peeling is also the same as in the case of the roller cleaning film 10 adhered to the lower surface of the sheet-like material M described above, and the detailed description thereof is omitted for convenience of description.

  For this reason, in the present embodiment, the roller cleaning film 10 has a relationship between the adhesive force of the suction surface 11A and the adhesive force of the adhesive surface 12A: “the adhesive force of the adhesive surface 12A> the adhesive force of the suction surface 11A. Is set to be.

  In this embodiment, the roller cleaning film 10 is bonded to both surfaces of the sheet-like material M, and a gap G is provided between the roller cleaning films 10 as a gap in the transport direction. . That is, the roller cleaning film 10 is alternately adhered to each surface of the sheet-like material M with a gap G. Moreover, the roller cleaning films 10 on both sides do not overlap in the thickness direction of the sheet-like material M by providing a gap G in the transport direction between the roller cleaning films 10. Thereby, since the increase in the thickness in the sheet-like material M can be suppressed only to the thickness T of the roller cleaning film 10 on one side, the roller of the sheet-like material M that may be generated with the increase in the thickness of the material in the web conveyance device. Variations in contact pressure can be suppressed. In other words, the roller cleaning film 10 adhered to the sheet-like material M also stabilizes the contact pressure on the roller surface, stabilizes the adsorption to the roller surface, and adheres to the sheet-like material M. Stabilization is also planned.

Next, the relationship between the adhesive force of the suction surface 11A and the adhesive force of the adhesive surface 12A in the roller cleaning film 10 will be described with reference to FIGS.
As shown in FIG. 4, an evaluation film 20 having the same configuration as that of the roller cleaning film 10 is manufactured in order to obtain the adhesive force of the suction surface 11A and the adhesive force of the adhesive surface 12A suitable as the roller cleaning film 10. did. That is, the evaluation film 20 includes an evaluation suction surface 21A that can evaluate the suction state on the roller, and an evaluation adhesive surface 22A that can evaluate the adhesion state to the sheet-like material M conveyed by the web conveyance device. It has been. Then, the evaluation film 20 is bonded to the sheet-like material M, and is obtained by carrying it by the evaluation roller 23 having the same surface characteristics as the rollers 15 and 16 used in the web carrying device. Based on the adhesive strength of the evaluation suction surface 21A and the adhesive strength of the evaluation adhesive surface 22A, the adhesive strength of the suction surface 11A and the adhesive strength of the adhesive surface 12A are set. Note that the surface of the evaluation roller 23 is a metal surface that has been subjected to chrome plating, and the surface roughness thereof is a finish with an accuracy of setting the maximum height Rz (JIS B0601: 2001) to “0.1 μm”. 0.1S ". In the present embodiment, the evaluation roller 23 conveys the sheet-like material M in contact with the outer peripheral surface in an angle range of “10 °” to “180 °” with respect to the rotation center. The holding angle, which is the angle at which the evaluation roller 23 is in contact with the sheet material M, is in the range of “10 °” to “180 °”. Moreover, the tension | tensile_strength of sheet-like material is the range of 40-120 [N].

As shown in FIG. 5, as the evaluation film 20, only combinations shown in Examples 1 to 6 and Comparative Examples 1 to 6 are provided with the combination of the adhesive force of the evaluation suction surface 21 </ b> A and the adhesive force of the evaluation adhesive surface 22 </ b> A. It was. That is, in the evaluation list 30, the value set as the adhesive strength of the evaluation suction surface 21A is shown in "Adhesion strength of the suction surface", and the adhesive strength of the evaluation adhesive surface 22A is shown in "Adhesion strength of the adhesive surface". The value set as is shown. Note that the unit of the adhesive strength is [N / cm ² ] for both the adhesive strength of the suction surface and the adhesive strength of the adhesive surface.

  That is, in Example 1, the adhesive force of the suction surface is set to “0.05”, and the adhesive force of the adhesive surface is set to “2.00”. In Example 2, the adhesive force of the suction surface is set to “0.10”, and the adhesive force of the adhesive surface is set to “2.00”. Hereinafter, regarding the combination of the adhesive strength of the suction surface and the adhesive strength of the adhesive surface, Example 3 is “0.20” and “2.00”, Example 4 is “0.30” and “2.00”, and Example 5 is set to “0.05” and “0.10”, and Example 6 is set to “0.30” and “0.60”, respectively. Moreover, about the combination of the adhesive force of an adsorption | suction surface and the adhesive force of an adhesion surface, the comparative example 1 is "0.01" and "2.00", the comparative example 2 is "0.02" and "2.00", comparison Example 3 is set to “0.04” and “2.00”, and Comparative Example 4 is set to “0.40” and “2.00”, respectively. Further, regarding the combination of the adhesive strength of the adsorption surface and the adhesive strength of the adhesive surface, Comparative Example 5 is “0.05” and “0.08”, and Comparative Example 6 is “0.30” and “0.50”, respectively. Is set.

  Then, spacer beads 24 having a diameter of about 3 μm made of synthetic resin or the like are attached to the surface of the evaluation roller 23 as a roller deposit, and then the evaluation adsorption surface 21A of the evaluation film 20 covers the surface of the evaluation roller 23. The sheet-like material M to which the evaluation film 20 of each example and each comparative example was bonded was sequentially conveyed so as to be cleaned. And about the surface of the evaluation roller 23 cleaned by the evaluation film 20, the remaining number of spacer beads 24, the transfer (adhesion) state of the adsorption surface of the evaluation film, and the peeled state of the adhesive surface of the evaluation film It investigated for every Example and each comparative example. Measurement of the remaining number of spacer beads 24 on the surface of the evaluation roller 23 and observation of the transfer state of the adsorption surface of the evaluation film were performed using a microscope. If necessary, the state of peeling of the adhesive surface of the evaluation film, particularly the state of adhesion to the surface of the evaluation roller 23, was also observed with a microscope.

  In the case of each of the evaluation films 20 of Examples 1 to 6, the remaining number of spacer beads 24 was “0”. Further, the pressure-sensitive adhesive constituting the evaluation suction surface 21A was not transferred to the evaluation roller 23, and the evaluation adhesive surface 22A was not peeled off from the sheet material M. That is, each evaluation film 20 of Examples 1 to 6 was able to remove (clean) roller deposits that had adhered to the evaluation roller 23 (determination ◯).

  On the other hand, in the case of the evaluation film 20 of Comparative Examples 1 to 3, the pressure-sensitive adhesive constituting the evaluation suction surface 21A was not transferred to the evaluation roller 23, and the evaluation adhesive surface 22A was not peeled off from the sheet material M. However, “21”, “8”, and “5” spacer beads 24 remained on the evaluation roller 23, respectively. That is, each evaluation film 20 of Comparative Examples 1 to 3 could not remove (clean) the roller deposits adhered to the evaluation roller 23 (determination x).

  In the case of the evaluation film 20 of Comparative Example 4, the evaluation adhesive surface 22A was not peeled off from the sheet-like material M, and the remaining number of spacer beads 24 was “0” and adhered to the evaluation roller 23. The roller deposits were removed (cleaned). However, the adhesive material constituting the evaluation suction surface 21 </ b> A was transferred to the evaluation roller 23. That is, in the case of the evaluation film 20 of Comparative Example 4, the adhesive material peeled off from the evaluation film 20 adhered to the evaluation roller 23 (determination x).

  Further, in the case of each of the evaluation films 20 of Comparative Examples 5 and 6, only the adhesive material constituting the evaluation suction surface 21A is not transferred to the evaluation roller 23, and the remaining number of spacer beads 24 is “0”. Thus, the roller deposits adhered to the evaluation roller 23 could be removed (cleaned). However, the evaluation adhesive surface 22A peeled off from the sheet material M. That is, in the case of each evaluation film 20 of Comparative Examples 5 and 6, when the evaluation film 20 peels from the sheet material M, the evaluation film 20 adheres to the evaluation roller 23 or the evaluation suction surface 21A from the sheet material M. And the evaluation roller 23 cannot be properly cleaned (determination x).

  That is, when the adhesive force of the evaluation suction surface 21 </ b> A is less than “0.05” (Comparative Examples 1 to 3), the deposit cannot be removed from the evaluation roller 23. On the other hand, when the adhesive force of the evaluation suction surface 21A exceeds “0.30” (Comparative Example 4), the adhesive material constituting the evaluation suction surface 21A may be broken and transferred to the evaluation roller 23. is there. When the adhesive strength of the evaluation adhesive surface 22A is weaker than twice the adhesive strength of the evaluation suction surface 21A (Comparative Examples 5 and 6), the evaluation adhesive surface 22A is peeled off and the evaluation film 20 is applied to the evaluation roller 23. May be transferred.

  Based on these investigations using the evaluation film 20, it was found that the roller cleaning film 10 preferably has an adhesive force of the suction surface 11A of “0.05” to “0.30”.

Further, the adhesive force of the adhesive surface 12A is suitably at least twice the adhesive force of the attracting surface 11A, and for example, it was obtained that it is preferable to be “0.20”. In particular, when the holding angle is different for each roller, the ease of peeling of the bonding surface 12A changes depending on the holding angle, that is, the appropriate value of the adhesive force of the bonding surface 12A differs depending on the holding angle. Therefore, the adhesive force of the adhesive surface 12A is set to be twice or more (more preferably 2 [N / cm ² ] or more) of the adhesive force of the adsorption surface 11A. As a result, it is possible to prevent the adhesive layer 12 from breaking at a holding angle of 10 ° to 180 °, specifically peeling of the adhesive surface 12A from the sheet material M due to the adhesive material constituting the adhesive surface 12A, The surface of each roller can be suitably cleaned.

(Function)
By transporting the sheet-like material M having the roller cleaning film 10 bonded to both surfaces thereof by the web transport device, the sheet-like material M is transported on the surface of any one of the rollers 15 and 16 that transports the sheet-like material M in the transport direction. The suction surface 11A of the corresponding roller cleaning film 10 is sucked. As a result, the dust d and the like adhering to the surfaces of the corresponding rollers 15 and 16 is removed by the adhesive force of the suction surface 11A of the roller cleaning film 10 in contact with the surface, and the surfaces of the rollers 15 and 16 are removed. Be cleaned. The dust d adhering to the surfaces of the rollers 15 and 16 is mainly a synthetic resin constituting the sheet material M, cellulose, a solid coating material, or the like. Further, since the dust d adheres to the surfaces of the rollers 15 and 16 by a weak force compared to the adhesive force of the attracting surface 11A, such as static electricity or adhesive force remaining on the solidified coating material, The dust d adhering to each of the rollers 15 and 16 is attracted and moved to the attracting surface 11A by the strong adhesion force of the attracting surface 11A. Further, since the adhesive force of the suction surface 11A is stronger than the force of the surfaces of the rollers 15 and 16 to adsorb the dust d due to static electricity or the like, the suction surface 11A that adsorbs the dust d is then downstream in the transport direction (rear stage). Even if the other roller is cleaned, there is no possibility that the dust d adsorbed on the adsorption surface 11A is left behind on the other roller. For this reason, the roller cleaning film 10 can continuously clean a plurality of rollers, for example, dozens to hundreds of rollers.

  In addition, the length L of the roller cleaning film 10 is set to be equal to or longer than the outer peripheral length Lm (= Dm × π) of the rollers 15 and 16 having the maximum diameter Dm among the rollers to be cleaned. The film 10 adheres to the outer periphery of the rollers 15 and 16 at least once so that the entire outer periphery of the rollers 15 and 16 can be cleaned. That is, the roller cleaning film 10 having a length L adhered to the lower surface of the sheet-like material M can remove the adhering dust d over the entire outer peripheral surface of the roller 15, so-called cleaning can be performed. Similarly, the roller cleaning film 10 having a length L bonded to the upper surface of the sheet-like material M can remove the adhering dust d over the entire outer peripheral surface of the roller 16, so-called cleaning can be performed.

  Conventionally, the rollers of the web conveyance device have been manually cleaned. However, as described above, it is not easy to clean from the outside by equipment or the like arranged around the rollers. There is a problem that work with an unreasonable posture occurs, and it has been desired to solve these problems. In other words, since the roller cleaning film 10 eliminates or reduces the manual work from the roller cleaning of the web conveying device, the above problem can be solved.

  By the way, there is a possibility that the product with the adhered matter of the roller may be determined as a defective product. In addition, the product conveyed by the roller with the attached matter may have a mark attached by the attached matter for each circumferential length of the roller, that is, a so-called dent. Since the dent remains over the entire range of the product, if it is determined to be defective, the roll-shaped product may be determined to be a defective product that is rolled up, resulting in a large loss. For this reason, in particular, it is desired to reliably remove dust that causes dents from the roller. In the present embodiment, since the cleaning state of the roller deposit using the spacer beads 24 is investigated as a measure for such dust, the roller of the web conveyance device is used by using the roller cleaning film 10. By cleaning the, it is possible to prevent the possibility that dents remain on the product. Thereby, it can prevent that the product manufactured from all the sheet-like materials for 1 roll will be determined to be inferior goods.

As described above, according to the roller cleaning film of this embodiment, the effects listed below can be obtained.
(1) In the web transport device, the suction surface 11A of the roller cleaning film 10 bonded to the transported sheet-like material M comes into contact with the surfaces of the rollers 15 and 16 as the sheet-like material M is transported. The surfaces of the rollers are cleaned so that deposits (dust d) adhering to the surfaces of the rollers 15 and 16 are removed from the surfaces by the adhesive force of the surface 11A. Thereby, it is suppressed that the deposit | attachment of the rollers 15 and 16 causes the defect etc. resulting from the deposit | attachment to the product processed from the sheet-like material M. FIG. Further, if the sheet material M to be conveyed is used as it is for cleaning the rollers 15 and 16, the time required for the roller cleaning, such as eliminating the trouble of removing the sheet material M from the web conveying device at the time of roller cleaning. Is greatly shortened, and the waste of sheet-like material generated during cleaning is reduced.

  (2) By providing the roller cleaning film 10 on the sheet material M transported by the web transport device, all the rollers 15 and 16 in contact with the sheet material M can be cleaned with the roller cleaning film 10. it can. Furthermore, since it is the roller cleaning using conveyance by the apparatus of the sheet-like material M conveyed by a web conveyance apparatus, even if it is a roller which is difficult to clean from the outside, it can clean easily. As a result, the time required to clean the rollers can be shortened because the time for avoiding the equipment around the device is not required, as compared with the case where the rollers are cleaned from the outside of the device.

(3) By setting the adhesive force of the suction surface 11A to 0.05 to 0.3 [N / cm ² ], the suction surface 11A of the roller cleaning film 10, more specifically, the adhesive material constituting the suction surface 11A Can be more suitably prevented from being transferred to the rollers 15 and 16. Further, since the adhered matter once adhered to the roller cleaning film 10 is suitably held by the roller cleaning film 10, the adhered matter (dust d) held on the roller cleaning film 10 is transferred to other rollers. It is also possible to prevent reattachment to the surface. Thereby, cleaning of the roller of a web conveyance apparatus can be performed still more suitably.

  (4) Since the adhesive force of the adhesive surface 12A is set to be twice or more stronger than the adhesive force of the adsorption surface 11A, the adhesive layer 12 can be prevented from being broken, and the roller cleaning film 10 is formed from the sheet-like material M. Can be more reliably prevented from peeling off and adhering to the rollers 15 and 16. Thereby, the roller cleaning with the roller cleaning film can be suitably performed.

In particular, by setting the adhesive strength of the adhesive surface 12A to 2 [N / cm ² ] or more, peeling of the roller cleaning film 10 from the sheet-like material M due to the fracture of the adhesive layer 12 can be prevented more reliably.

That is, when the holding angle is different for each roller, the ease of peeling of the bonding surface 12A varies depending on the holding angle, that is, the appropriate value of the adhesive force of the bonding surface 12A varies depending on the holding angle. Therefore, the adhesive force of the adhesive surface 12A is set to be twice or more (more preferably 2 [N / cm ² ] or more) of the adhesive force of the adsorption surface 11A. As a result, it is possible to prevent the adhesive layer 12 from breaking at a holding angle of 10 ° to 180 °, specifically peeling of the adhesive surface 12A from the sheet material M due to the adhesive material constituting the adhesive surface 12A, The surface of each roller can be suitably cleaned.

  (5) The roller cleaning film 10 is used to clean the rollers 15 and 16 in a web transport device in which the surfaces of the rollers 15 and 16 to be cleaned are metal and the sheet material M to be transported is made of PET. Can be applied. In many cases, metal rollers 15 and 16 are employed in the web conveyance device, and the conveyance object of the web conveyance device is often a resin material such as PET. It can be used for a web conveyance device.

  (6) This roller cleaning film 10 is applied even when a PET film frequently used as a transport object is transported by rollers 15 and 16 having a surface roughness of 0.1S which is a suitable surface as a web transport device. can do.

  (7) Since the rollers 15 and 16 provided on both sides of the sheet-like material M can be collectively cleaned in the web conveyance device, the time required for roller cleaning can be further shortened. .

  (8) By alternately bonding each of the roller cleaning films 10 to both surfaces of the sheet-like material M, the thickness of the sheet-like material M in a state where the roller cleaning film 10 is adhered can be suppressed. Become. For this reason, it is possible to prevent unnecessary pressure from being applied to the sheet-like material M and the roller cleaning film 10 conveyed by the web conveying device, and to perform roller cleaning appropriately.

  (9) By setting the length L of the roller cleaning film to the outer peripheral length Lm of the rollers 15 and 16 having the maximum diameter Dm of the rollers 15 and 16 to be cleaned, the rollers 15 and 16 are all The circumference is surely cleaned by the roller cleaning film 10. Thereby, roller cleaning comes to be performed suitably.

In addition, the said embodiment can also be implemented with the following aspects.
In the above embodiment, the case where the surfaces of the rollers 15 and 16 are chrome-plated is illustrated. However, the present invention is not limited to this. Alternatively, if the roller is made of metal, the surface may remain the metal. Further, the roller surface may be made of a material other than metal, such as synthetic resin or rubber. In addition, as a web conveyance apparatus, the roller which has the above-mentioned each surface may be mixed. The adhesive force of the roller cleaning film exhibits more or less cleaning ability for any roller. This makes it possible to expand the web conveying apparatus to which the roller cleaning film can be applied and the types of rollers provided in the apparatus.

  In the above embodiment, the case where the holding angle of the roller to be cleaned with respect to the sheet-like material is “10 °” to “180 °” is illustrated. However, the present invention is not limited to this, and the holding angle of the roller may be an angle smaller than “10 °”, for example, an angle that makes point contact, or may be an angle larger than “180 °”. This makes it possible to expand the web conveyance device to which the roller cleaning film can be applied.

  In the above embodiment, the case where the sheet-like material M made of PET is transported by the web transport device is illustrated. However, the present invention is not limited to this, and the sheet-like material conveyed by the web conveying device may be composed of another synthetic resin such as polyvinyl chloride (PVC), a metal, a laminated material thereof, or the like. This makes it possible to expand the web conveyance device to which the roller cleaning film can be applied.

  In the above-described embodiment, the case where the roller cleaning film 10 is bonded to the sheet-like material M whose use is not limited to cleaning is illustrated. However, the present invention is not limited thereto, and the sheet-like material whose use is limited to cleaning is used. Alternatively, a roller cleaning film may be adhered to the web conveying device. Thereby, for example, since it becomes possible to distinguish the sheet-like material for products from the sheet-like material for cleaning, waste of the sheet-like material for products can be reduced. In addition, even when the sheet material for products is not suitable for cleaning or when it is not suitable for adhesion of a roller cleaning film, such a sheet cleaning material can be used. It becomes possible to expand the application range of the roller cleaning of the web conveyance device by the film for use.

  In the above-described embodiment, the case where the base material 13 is made of PET has been exemplified. However, the present invention is not limited thereto, and the base material may be a sheet-like material in which a plurality of synthetic resins or the like are laminated. As a result, the degree of freedom in designing the roller cleaning film can be improved.

  In the above embodiment, the roller cleaning film 10 has been illustrated for the case where the suction surface 11A and the adhesive surface 12A are exposed. However, the present invention is not limited thereto, and a separator that protects the suction surface and the adhesive surface may be provided on the suction surface and the adhesive surface of the roller cleaning film. In this case, the roller cleaning film may be adhered to the sheet-like material after the separator on the adhesive surface is removed, and the separator on the suction surface may be removed when the film is conveyed through the web conveyance device. For example, a roller cleaning film is adhered to a sheet-like material wound up in a roll shape with the separator on the suction surface attached, and the separator on the suction surface is removed when the roller cleaning film is unwound. What should I do? Thereby, the freedom degree of the utilization aspect of the film for roller cleaning comes to be raised.

  In the above embodiment, the case where the roller cleaning film 10 is bonded to both surfaces of the sheet-like material M is illustrated. However, the present invention is not limited to this, and when it is desired to clean only the roller corresponding to one surface of the sheet-like material, a roller cleaning film may be adhered to only one surface of the sheet-like material.

  -Moreover, in the said embodiment, the case where the sheet | seat 10 for roller cleaning was adhere | attached on the single side | surface of the sheet-like material M was illustrated. However, the present invention is not limited to this, and a plurality of roller cleaning films may be bonded to one side of the sheet-like material. As a result, the roller can be cleaned a plurality of times, or the entire circumference of the roller can be suitably cleaned using a sheet-like material shorter than the outer peripheral length of the roller.

  When providing a plurality of roller cleaning films on both sides of the sheet-like material, the roller cleaning films are arranged in a staggered manner on both sides of the sheet-like material, with a predetermined interval between them. By doing so, the number of cleanings of the roller can be increased while maintaining the effect of the above-described embodiment.

  -Furthermore, if there is no inconvenience in the conveyance by the web conveyance device, the roller cleaning films provided on both sides of the sheet-like material may be provided so that part or all overlap in the thickness direction of the sheet-like material. .

  As described above, if the degree of freedom of arrangement of the roller cleaning film in the sheet-like material is improved, the applicability of roller cleaning using the roller cleaning film can be improved. Become.

  -In the said embodiment, although a web conveyance apparatus is not specifically limited, A slitter apparatus, a coating apparatus, etc. may be sufficient if a web conveyance apparatus is an apparatus which performs a predetermined | prescribed process to a sheet-like material. As a result, by applying this roller cleaning film to various web conveyance devices, it becomes possible to easily perform roller cleaning of these web conveyance devices and to shorten the time required for cleaning. It becomes like this.

  ・ This roller cleaning film is a web transport device that produces positive and negative electrodes for batteries, specifically, slitter devices and coating devices used in the process of making electrodes for lithium ion batteries, and electrodes for nickel metal hydride batteries. The present invention can also be applied to a slitter device or a coating device used in the production process. This makes it possible to easily clean the roller of the web conveyance device for producing the positive electrode and the negative electrode of the battery using the roller cleaning film and to shorten the time required for cleaning. .

  DESCRIPTION OF SYMBOLS 10 ... Roller cleaning film, 11 ... Adsorption layer, 11A ... Adsorption surface, 12 ... Adhesion layer, 12A ... Adhesion surface, 13 ... Base material, 15, 16 ... Roller, 20 ... Evaluation film, 21A ... Evaluation adsorption surface 22A ... Adhesive surface for evaluation, 23 ... Roller for evaluation, 24 ... Spacer beads, 30 ... Evaluation list, 51 ... Unwinding part, 52 ... Coating part, 53 ... Drying part, 54 ... Winding part, M ... Sheet material.

Claims (9)

A roller cleaning film used for cleaning a roller provided in a web conveyance device,
Adhering to the surface of the sheet-like material conveyed by the web conveying device via an adhesive surface having adhesive force, and having an adsorption surface having adhesive force on the surface opposite to the adhesive surface, The adhesive force of the adhesive surface and the adhesive force of the adsorption surface are
The roller cleaning film is characterized in that the adhesive strength of the adhesive surface is greater than the adhesive strength of the attracting surface. The roller cleaning film according to claim 1, wherein an adhesive force of the suction surface is set to 0.05 to 0.3 [N / cm ² ]. The roller cleaning film according to claim 1, wherein the adhesive force of the adhesive surface is set to be twice or more stronger than the adhesive force of the suction surface. The film for roller cleaning as described in any one of Claims 1-3 in which the adhesive force of the said adhesive surface is set to 2 [N / cm < ² >] or more. The roller cleaning film according to any one of claims 1 to 4, wherein a surface of the roller to be cleaned is a metal, and the sheet-like material to be bonded is made of a resin material. A roller cleaning method for adhering a roller cleaning film to a surface of a sheet-like material conveyed by a web conveyance device and cleaning a roller provided in the web conveyance device,
The roller cleaning film according to claim 1, wherein the roller cleaning film is a roller cleaning method. The roller cleaning method according to claim 6, wherein the roller cleaning films are respectively bonded to both surfaces of the sheet-like material to be conveyed. The roller cleaning method according to claim 7, wherein each of the roller cleaning films is alternately adhered to both surfaces of the sheet-like material. The roller cleaning method according to any one of claims 6 to 8, wherein a length of the roller cleaning film is equal to or greater than an outer peripheral length of a roller having a maximum diameter among rollers to be cleaned.

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