JP4719904B2 - Coating method and coating apparatus for coating agent - Google Patents

Description

  In the present invention, the coating agent is attached to the outer surface of the rotating coating roll, and the strip-shaped sheet body is run on the outer surface of the coating roll, and the coating agent is continuously applied to the surface of the strip-shaped sheet body. TECHNICAL FIELD The present invention relates to a coating method and a coating apparatus for a coating agent to be transferred.

  Conventionally, as a method for transferring an adhesive attached to the outer peripheral surface (outer surface) of a rotating coating roll to the surface of a belt-like sheet body, for example, a first roll having a concave portion of a predetermined pattern and a second having a convex portion The adhesive packed in the concave portion of the first roll is transferred to the surface of the convex portion of the second roll, and re-transferred to the belt-like sheet that runs on the outer peripheral surface (outer surface) of the second roll. Such a coating method is known (for example, see Patent Document 1). However, when coating the strip-shaped sheet body so that the adhesive is partially scattered (sparsely), the concave portion of the first roll must be formed finely, especially when the viscosity of the adhesive is high. In addition, there is a possibility that transfer errors may occur because the adhesive is not sufficiently filled in the recesses.

  In view of this, a method has been developed in which a coating is applied so as to locally adhere to a strip-shaped sheet body without forming a fine recess in the first roll (see, for example, Patent Document 2). In this coating method, the coating material is applied in a stripe pattern in the direction of rotation of the coating roll, the belt-shaped sheet body is sandwiched between the coating roll and the backing roll, and the backing roll is separated from the coating roll at the time of transfer. By reducing the rotation speed of the roll, an uncoated portion is created in the width direction of the belt-like sheet body, and the paint is locally attached.

Japanese Patent Laid-Open No. 10-277455 (paragraphs 0012 and 0013, FIGS. 1 and 2)

Japanese Unexamined Patent Publication No. 2000-51778 (paragraphs 0017 to 0020, FIGS. 2 and 3)

  However, in the coating method described in Patent Document 2, when an uncoated portion is to be formed in the width direction of the belt-shaped sheet body, the backing roll is separated from the coating roll, and the rotation speed of the coating roll is reduced from high to low. If the viscosity of the paint is high, the paint cannot be separated sufficiently even if the backing roll is separated, and the speed fluctuation must be repeated frequently if the interval between the uncoated parts is made fine. However, it took a lot of cost and time to produce, and it was not sufficient in terms of coating the sheet body with a simpler structure with certainty.

  The present invention has been made paying attention to such problems, and the coating agent is partially applied to the belt-like sheet body with a simple configuration without being influenced by the viscosity of the coating agent such as an adhesive. An object of the present invention is to provide a coating method and a coating apparatus for a coating agent to be applied so as to be scattered.

In order to solve the above-mentioned problem, the coating method of the coating agent according to claim 1 of the present invention is to attach the coating agent to the outer surface of the rotating coating roll and to attach the sheet body to the outer surface of the coating roll. In the coating method of the coating agent that travels above and continuously transfers the coating agent to the surface of the sheet body through the masking means, the coating agent removing means disposed in the width direction of the coating roll By repeatedly moving in a direction in which the coating roll is brought into contact with and separated from the coating roll, an adhesion portion to which a coating agent extending in the width direction intermittent to the rotation direction of the coating roll is adhered is formed, and then the width of the coating roll is determined. transferring the coating material from the attachment portion to partially surfaces of the sheet by a masking means has a plurality of notches formed in a direction It is characterized by a door.
According to this feature, after the coating agent removing means is moved in the direction of contacting and separating from the coating roll without changing the rotation speed of the coating roll, the plurality of notches of the masking means and the rotation of the coating roll Since only the coating agent in a portion aligned with the adhering portion to which the coating agent interrupted in the direction adheres is transferred to the sheet body, by appropriately selecting the number of notches, the transfer of the coating agent to be transferred is reduced. The degree can be set freely. In addition, by forming the notches of the masking means at equal intervals, it is possible to arrange the coating agents that are sparsely transferred in an orderly manner and to save the coating agents.

The coating method of the coating agent according to claim 2 of the present invention is the coating method of the coating agent according to claim 1 , wherein the coating roll of the coating agent removing means is behind the rotation direction of the coating roll. A coating agent adjusting means for adjusting the thickness of the coating agent adhering to the outer surface of the coating roll is provided.
According to this feature, by appropriately adjusting the proximity distance between the coating roll and the coating agent adjusting means, the adhesion height of the coating agent adhered to the coating roll is adjusted, and the excess coating agent is scraped off. Therefore, the coating roller is formed with an intermittently attached coating agent having a desired height.

The coating method of the coating agent according to claim 3 of the present invention is the coating method of coating agent according to claim 1 or 2 , wherein the sheet body is made of release paper, and the coating agent is transferred. The release paper is integrally adhered to the strip-shaped electrolytic paper for capacitors, and the coating agent is retransferred to the electrolytic paper.
According to this feature, by coating the electrolytic paper so that the coating agent can be re-transferred, the electrode foil in the production of the electrolytic capacitor can be applied quickly and easily, and the electrolytic paper and the electrode foil are laminated. Even when the capacitor element is impregnated with the electrolytic solution, since the coating agent is loosely attached to the electrolytic paper, the impregnation property of the electrolytic solution is improved, and the electrical characteristics of the electrolytic capacitor can be improved. .

In order to solve the above-mentioned problems, a coating apparatus for a coating agent according to claim 4 of the present invention attaches a coating agent to an outer surface of a rotating coating roll, and attaches a sheet body to the outer surface of the coating roll. In a coating agent coating apparatus that travels above and continuously transfers the coating agent to the surface of the sheet body via a masking means, the coating can be repeatedly moved in the direction of contacting and separating from the coating roll. The masking means is formed in the width direction of the coating roll that partially transfers the coating agent to the surface of the sheet body from the coating agent attached in the width direction of the coating roll. It is characterized by having a plurality of notches .
According to this feature, without changing the rotation speed of the coating roll, the coating agent removing means is moved in a direction in contact with and away from the coating roll to extend in the width direction intermittent with respect to the rotation direction of the coating roll. Since a part of the coating agent can be transferred to the surface of the sheet body through the plurality of notches of the masking means, the coating agent is sparse on the surface of the sheet body without being influenced by the viscosity of the coating agent and An apparatus capable of reliably transferring can be provided.

  Examples of the present invention will be described below.

  FIG. 1 is a perspective view showing an entire image of a coating apparatus for performing a coating method of a coating agent in an embodiment of the present invention, and FIG. 2 is a side sectional view showing coating of the coating agent by the coating apparatus. FIG. 3 is an enlarged view of a main part in a plan view showing the transfer process of the coating agent to the release paper, and FIG. 4 shows that the wound body wound by the coating apparatus is peeled again to the release paper and the electrolytic paper. FIG. 5 is a perspective view showing a process of forming a capacitor element of a wound multilayer electrolytic capacitor using electrolytic paper from which the release paper has been peeled off. In addition, in an Example, an adhesive is illustrated as an example of the coating agent coated.

  As shown in FIG. 1, the coating apparatus 17 attaches the adhesive 5 ′ filled in the liquid tank 18 to the release paper 1 that is a long belt-like sheet body by cold welding. In the description, the conveyance direction of the release paper 1 of the coating apparatus 17 is the front side, the supply side of the release paper 1 is the rear, and the width direction of the release paper 1 is the left-right direction.

  As shown in FIGS. 1 and 2, the coating apparatus 17 will be described in detail. A rectangular liquid layer 18 that is long in the left-right width direction is provided at a lower position, and the viscosity of rubber-based, silicon-based, acrylic-based, etc. It is filled with the pressure-sensitive adhesive 5 '. Immediately above the liquid layer 18, a drum-type coating roll 9 that is controlled to rotate counterclockwise as viewed from the left side about an axis extending in the width direction is pivotally supported, and the lower part is an adhesive 5 ′ in the liquid layer 18. The adhesive 5 ′ can be lifted upward by the rotation of the coating roll 9. The rotation speed of the coating roll 9 is controlled to be rotated at a constant speed.

  At the upper end of the coating roll 9, a thin coating masking plate 15 extending so as to be in contact with the left and right in the width direction is provided so as to warp upward from the rear to the front. The masking plate 15 is formed with notch slits 15a serving as openings at predetermined intervals in the left-right direction from the rear to the front. A thin plate-like movable doctor blade 16 as a coating agent removing means is provided along the width direction of the coating roll 9 at the upper and lower center positions on the rear surface of the coating roll 9.

  A thin plate-like fixed doctor blade 20 as a coating agent adjusting means is provided along the width direction of the coating roll 9 at the rear side (position near the lower side) of the coating roll of the movable doctor blade 16, and the tip thereof. The part is close to the surface of the coating roll 9. This fixed doctor blade 20 scrapes off the excess adhesive 5 ′ that is scraped from the liquid tank 18 to the outer surface 9a of the coating roll 9, and the outer surface 9a is formed with an adhesive layer 7 adjusted to a predetermined thickness. Will be.

  Since this movable doctor blade 16 is configured to be repeatedly controlled to move repeatedly in the direction in which it contacts and separates from the coating roll 9, the adhesive layer 7 is repeatedly detached, and excess adhesive is intermittently applied. Layer 7 is scraped off. Then, by continuing the repetitive movement of the movable doctor blade 16, the outer surface 9a of the coating roll 9 is attached to the outer surface 9a of the coating roll 9 extending in the width direction intermittent with respect to the rotation direction of the coating roll, as shown in FIG. A plurality of are formed.

  Further, an elastic drum 8 having substantially the same width as that of the coating roll 9 and having a slightly smaller side diameter is provided on the upper part of the movable doctor blade 16 and is rotated clockwise when viewed from the left side. While the strip-shaped release paper 1 is sandwiched between the elastic drum 8 and the coating masking plate 15, the release paper 1 and the coating masking plate 15 are pressed against the outer surface 9 a of the coating roll 9 by the elastic drum 8. The release paper 1 is moved from the rear toward the front.

  Guide rollers 11 and 12 that are spaced apart by a predetermined distance in the vertical direction and extend to the left and right are pivotally supported at the front position of the elastic drum 8, and are further pivotally supported by the front upper position to the left and right and are controlled to rotate clockwise when viewed from the left side. A take-up roller 10 is provided, and the release paper 1 moved from the elastic drum 8 and the coating masking plate 15 described above is passed through the guide roller 11, and is a long belt having substantially the same type as the release paper 1 from the lower front part. The electrolytic paper 3 (a separator used for a capacitor element inside the electrolytic capacitor described later) is passed through the guide roller 12, and then both the release paper 1 and the electrolytic paper 3 are overlapped in the width direction and the winding roller 10. Thus, the rolled paper 19 of the release paper and the electrolytic paper 3 is wound up.

  As shown in FIG. 2, the release paper 1 is preliminarily supported on the rear upper release paper feed shaft 13 and wound as a roll sheet body. Similarly, the electrolytic paper 3 is also provided in advance on the lower front electrolytic paper feed. Even when the release paper 1 and the electrolytic paper 3 are consumed in the coating apparatus 17 while being supported by the shaft 14 and wound as a roll sheet body, the release paper 1 and The electrolytic paper 3 can be replenished.

  The adhering portion 6 formed by the movable doctor blade 16 that is a means for removing the adhesive layer 7 is conveyed to the lower surface of the coating masking plate 15 while adhering to the outer surface 9 a by the rotation of the coating roll 9. Here, as will be described in detail later, the coating masking plate 15 as a masking means masks a part of the unnecessary adhering portion 6 and only the partial adhesive 5 facing the notch slit 15a is coated. The image is transferred to the transfer surface 2 which is the surface of the release paper 1 sandwiched between the roll 9 and the outer surface 8 a of the elastic drum 8.

  In this way, the adhesive layer 7 in which the adhesive 5 ′ has a constant thickness (height) is formed by adjusting the distance between the tip of the fixed doctor blade 20 and the outer surface 9a in advance. Therefore, even when the movable doctor blade 16 is repeatedly moved thereafter, the adhering portion 6 having a predetermined thickness (height) is more reliably interrupted, and the surface of the release paper 1 is provided on the surface of the release paper 1 via the coating masking plate 15. The partial adhesive 5 having a predetermined thickness that is always free from spots is formed. Moreover, the space | interval of the fixed doctor blade 20 and the outer surface 9a can be changed suitably, and the thickness (height) of the adhesion layer 7 can be freely set and adjusted.

  Then, as shown in the enlarged portion of the main part (the encircled portion of the alternate long and short dash line) on the transfer surface 2, the adhesion portion 2 a of the partial adhesive 5 and the non-attachment portion 2 b that is not adhered are formed continuously. The partial pressure-sensitive adhesive 5 is transferred in a sparse state, and the take-up roller 10 sandwiches the partial pressure-sensitive adhesive 5 between the transfer surface 2 of the release paper 1 and the retransfer surface 4 of the electrolytic paper 3. Is wound up in multiple layers while adhering to the retransfer surface 4.

  When a highly viscous coating agent is used for the adhesive 5 ′, it is preferable that the movable doctor blade 16 and the fixed doctor blade 20 are as close as possible. In this way, the coating roll of the movable doctor blade 16 is used. 9, it is possible to prevent an adhesive liquid pool from being generated between the lower surface of the front end portion 16 a of the movable doctor blade 16 (backward in the rotational direction of the coating roll 9) and the outer surface 9 a of the coating roll 9. Therefore, when the movable doctor blade 16 is separated from the coating roll 9 to form a new adhering portion 6, an adverse effect due to the liquid pool is avoided. Further, in this case, the fixed doctor blade 20 can also be used as a sliding plate for the movable doctor blade 16.

  Similarly, by appropriately selecting the repetitive moving speed of the movable doctor blade 16 and the rotating speed of the coating roll 9, the degree of sparseness of the transferred partial adhesive 5 can be freely set. It is preferable that at least the repetitive movement speed of the movable doctor blade 16 and the rotation speed of the coating roll 9 be constant, so that the partial adhesive 5 can be accurately transferred to the release paper 1. The moving speed and the rotating speed can be changed as appropriate.

  Next, as shown in FIG. 3, the transfer process of the partial adhesive 5 to the release paper 1 will be described in detail. The plurality of notch slits 15 a of the coating masking plate 15 serving as a masking means are formed in the width of the coating roll 9. A plurality are formed in the direction. Therefore, first, the coating roll 9 is intermittently moved with respect to the rotation direction of the coating roll 9 by repetitive movement in which the coating roller 9 rotates and the front end portion 16a of the movable doctor blade 16 contacts and separates from the outer surface 9a of the coating roll 9 every predetermined time. The attached portion 6 extending in the width direction is formed.

  When the coating roll 9 is further rotated, a part of the adhering part 6 (partial adhesive 5) faces the notch slit 15a by the coating masking plate 15, and the other adhering part 6 is masked. The When the release paper 1 passes through the upper surface of the coating masking plate 15 while being moved in the advancing direction (from the rear to the front) by the winding of the winding roller 10 (see FIGS. 1 and 2), the notch slit 15a. Only the adhesive of the adhering part 6 (partial adhesive 5 in the notch slit 15a) that is aligned with is transferred to the release paper 1.

  In this way, after the movable doctor blade 16 as the coating agent removing means is repeatedly moved in the direction of coming into contact with and separating from the coating roll 9, the release paper 1 is removed via the coating masking plate 15 as the masking means. By continuing a series of transfer operations for transferring the adhesive to the surface, a plurality of partial adhesives 5 are formed sparsely on the surface of the strip-like release paper 1.

  Therefore, the partial pressure-sensitive adhesive 5 is transferred so that the partial pressure-sensitive adhesive 5 is partially scattered over the entire area of the release paper 1 without being influenced by the viscosity of the pressure-sensitive adhesive 5 ′ (in the liquid tank 18). 5 can be set as appropriate, and the partial pressure-sensitive adhesive 5 can be transferred onto the surface of the release paper 1 in a desired sparse shape.

  In the case of the present embodiment, a plurality of notch slits 15a are formed at equal intervals in the width direction, so that the partial adhesives 5 that are loosely transferred to the release paper 1 are arranged in an orderly manner. In addition, by appropriately selecting the number of notches in the notch slit 15a, the degree of sparseness of the transferred adhesive 5 can be freely set.

  In FIG. 4, a wound body 19 in which the release paper 1 and the electrolytic paper 3 on which the partial adhesive 5 is adhered evenly and uniformly by the coating device 17 (see FIGS. 1 and 2) is overlapped and wound is shown. When the release paper 1 is taken out from the take-up roller 10 and peeled off from one end of the wound body 19, the partial adhesive 5 is separated from the transfer surface 2 of the release paper 1, and the electrolytic paper 3 It is brought into close contact with the retransfer surface 4 and retransferred. As described above, the re-transfer surface 4 of the electrolytic paper 3 is formed with the adhered portion 4a of the partial adhesive 5 and the non-attached portion 4b that is not adhered, so that the partial adhesive 5 is continuously sparse and uniform. The transfer surface 2 of the release paper 1 is only the non-attached portion 2b.

  Next, as shown in FIG. 5, an example is shown in which the electrolytic paper 3 to which the partial adhesive 5 is loosely attached is used, for example, in a cylindrical capacitor element 30 of a wound multilayer electrolytic capacitor. The manufacturing procedure of the capacitor element 30 will be described. The capacitor element 30 includes an anode foil 31 and a cathode foil 33, which are band-like electrode foils, and electrolytic papers 3, 3 ′ as separators provided corresponding to these electrode foils, It consists of two lead terminals 32 and 34 of metal bars.

  A strip-shaped anode foil 31 that is slightly narrower than the electrolytic paper 3 is pasted on the retransfer surface 4 of the electrolytic paper 3 in advance through a partially adhered partial adhesive 5. A strip-shaped cathode foil 33 that is slightly narrower than the electrolytic paper 3 is attached to the retransfer surface 4 of ′ through a partial adhesive 5 that is loosely attached. The positions of the partial adhesives 5 attached to the electrolytic papers 3 and 3 ′ are preliminarily and evenly attached along the width direction, so that both end portions of the anode foil 31 and the cathode foil 33 in the width direction are arranged. Since it is joined at a position as close as possible to the vicinity, for example, it is possible to prevent the anode foil 31 and the cathode foil 33 from being peeled off from the electrolytic papers 3 and 3 ′ during winding. Furthermore, since the partial adhesive 5 is sparsely bonded over the entire area of the anode foil 31 and the cathode foil 33, a more reliable bonded state can be maintained.

  The anode foil 31 and the cathode foil 33 are wound so that the anode foil 31 is inside the cathode foil 33. In the winding process, an extraction terminal 32 is connected to one anode foil 31, and an extraction terminal 34 is connected to the other cathode foil 33 and is drawn out so as to protrude upward, and is wound and laminated in multiple layers. Thus, the capacitor element 30 is manufactured. Thus, by coating the partial adhesive 5 so that it can be re-transferred to the electrolytic paper 3, the operation of attaching the electrode foils (the anode foil 31 and the cathode foil 33) in the production of the electrolytic capacitor can be performed quickly and easily. .

  Further, the connection portion of the lead terminals 32 and 34 with the capacitor element 30 is preferably formed in a flat plate shape so as to be easily connected to the electrode foil (the anode foil 31 and the cathode foil 33), although not shown in particular. The present invention is not limited to this. Note that the lead terminals 32 and 34 may be formed by insert-forming external terminals that are used to lead out capacitors and connecting the internal terminals separately connected to the electrode foil to the external terminals.

  In addition, the capacitor element using the electrolytic paper 3 is not limited to the present invention, and a multilayer type capacitor element, a square capacitor, an electric double layer capacitor, a laminate in which a plurality of anode foils and cathode foils are laminated in front and behind. It can also be applied as a separator for capacitor elements of various capacitors such as film capacitors. Furthermore, the present invention can also be applied to a separator interposed between a positive electrode and a negative electrode in a battery such as a fuel cell.

  As the next step, the capacitor element 30 is immersed in the container filled with the electrolytic solution (excluding the lead terminals 32 and 34), and the capacitor element 30 is impregnated with the electrolytic solution. In the capacitor element 30 immersed in the electrolytic solution, a gap is formed in the non-joining portion 35 other than the partial adhesive 5 that joins the anode foil 31 and the electrolytic paper 3. Penetrates into every corner of the capacitor element 30 and is sufficiently distributed. Similarly, although not shown, a gap is also formed in the non-joined portion 35 other than the partial adhesive 5 that joins the cathode foil 33 and the electrolytic paper 3 ′.

  Thus, even when the electrolytic solution is impregnated in the capacitor element 30 in which the electrolytic papers 3 and 3 ′ and the electrode foils (the anode foil 31 and the cathode foil 33) are alternately laminated, Since the adhesive 5 is loosely attached, a non-joined portion 35 other than the partial adhesive 5 is formed between the electrolytic paper 3 and the anode foil 31 and between the electrolytic paper 3 ′ and the cathode foil 33. The impregnation rate and the impregnation rate can be dramatically increased.

  As described above, the capacitor element 30 impregnated with the electrolytic solution is taken out from the container and is housed from the opening of the outer case (not shown), and this opening leads the two extraction terminals 32 and 34 to the outside in a sealed state. By sealing with the sealing body which did, the capacitor | condenser element 30 is sealed in an exterior case, and an electrolytic capacitor is produced. The shape of the outer case may be a cylindrical capacitor as a cylindrical shape in accordance with the shape of the capacitor element 30, or a rectangular capacitor using a bottomed rectangular outer case. Alternatively, the cylindrical shape of the wound capacitor element 30 may be curved to form a thin elliptical capacitor.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the embodiments, and modifications and additions within the scope not departing from the gist of the present invention are included in the present invention. For example, in the above-described embodiment, the thickness of the adhesive 5 ′ (adhesive layer 7) attached to the outer surface 9 a of the coating roll 9 in advance with the fixed doctor blade 20 is adjusted so that the release paper 1 has no predetermined thickness. However, the present invention is not limited to this, and the thickness of the adhesive can be increased by setting the separation position of the movable doctor blade 16 without providing the fixed doctor blade 20 in the coating apparatus 17. You may adjust it. Alternatively, the thickness of the pressure-sensitive adhesive 5 ′ attached to the outer surface 9 a of the coating roll 9 may be adjusted using the outer shape of the liquid tank when the pressure-sensitive adhesive 5 ′ is formed by the coating roll 9.

  Moreover, in the said Example, although the release paper 1 aiming at retransfer was shown as a sheet body to which the partial adhesive material 5 is directly transferred, this invention is not limited to this, The electrolysis used as a to-be-transferred body In the case where the strength and quality of the paper are not affected, a sheet body such as electrolytic paper to be transferred to the release paper 1 is directly sandwiched between the coating masking plate 15 and the elastic drum 8, and the coating masking plate The partial adhesive material 5 facing the 15 notch slits 15a may be directly transferred to a sheet body (transfer object). In this case, the release paper 1 may be disposed on the surface of the sheet body (transfer target body) onto which the partial adhesive material 5 has been transferred, and may be wound up in multiple layers. Alternatively, the sheet body (transfer body) may be wound without using the release paper 1 by providing a non-transfer side surface with a release function.

  In the above embodiment, the electrolytic paper 3 to which the partial adhesive 5 has been retransferred is used for the capacitor element 30 of the electrolytic capacitor. However, the present invention is not limited to this, and the electrolytic paper for the electrolytic capacitor is used. As an application example other than the paper 3, the present invention can also be applied to a paper that covers a connection portion between the lead terminals 32 and 34 and the electrode foil (the anode foil 31 and the cathode foil 33). That is, the impregnating property of the electrolytic solution can be improved by covering the connecting portion with the application paper (usually the same material as the electrolytic paper) to which the partial adhesive 5 has been retransferred.

  In addition, the transfer target of the partial pressure-sensitive adhesive 5 may be in the form of a sheet, can be applied to cloths and films made of various materials, can also be used for a long tape-like pressure-sensitive adhesive seal, Since the adhesive is sparse and formed over the entire area, the adhesive is not adhered over the entire surface while maintaining the adhesive strength, and thus it can be used as an adhesive tape that is easy to peel off. In addition, an infinite number of gaps (non-bonded portions of the adhesive) are formed between the loose adhesives, so that the air permeability is enhanced and the adhesive can be applied to a medical emergency bandage. Further, as the coating agent, various paints and coating agents can be used in addition to the adhesives described in the above examples.

It is a perspective view which shows the whole image of the coating apparatus which performs the coating method of the coating agent in the Example of this invention. It is a sectional side view which shows application | coating of the coating agent by a coating apparatus. It is a plane view principal part enlarged view which shows the transfer process to the peeling paper of a coating agent. It is a perspective view which shows the process in which the wound body wound by the coating apparatus peels and separates again to release paper and electrolytic paper. It is a perspective view which shows the process in which the capacitor | condenser element of a winding type | mold multilayer electrolytic capacitor is formed using the electrolytic paper from which the release paper was peeled.

Explanation of symbols

1 Release paper (sheet body)
2 Adhesive transfer surface 2a Adhered portion 2b Non-attached portion 3, 3 'Band-shaped electrolytic paper for capacitor 4 Adhesive retransfer surface 4a Adhered portion 4b Non-attached portion 5 Partial adhesive 5' Adhesive (Coating agent) )
6 Intermittent Adhesion 7 Adhesive Layer 8 Elastic Drum 8a Outer Surface 9 Coating Roll 9a Outer Surface 10 Winding Rollers 11, 12 Guide Roller 13 Peeling Feeding Shaft 14 Electrolytic Feeding Shaft 15 Coating Masking Plate (Masking Means)
15a Notch slit (opening)
16 movable doctor blade (coating agent removal means)
16a Front end portion 17 Coating agent coating device 18 Liquid tank 19 Roll of release paper and electrolytic paper 20 Fixed doctor blade (coating agent adjusting means)
Capacitor element 31 of 30 winding multilayer capacitor Anode foil (electrode foil)
32 Lead terminal 33 Cathode foil (electrode foil)
34 Lead terminal 35 Non-bonding part of adhesive

Claims (4)

The coating agent is attached to the outer surface of the rotating coating roll, and the sheet body is run on the outer surface of the coating roll, and the coating agent is continuously transferred to the surface of the sheet body through a masking means. In the coating method of the coating agent to be performed, the coating agent removing means arranged in the width direction of the coating roll is repeatedly moved in a direction in contact with and away from the coating roll to thereby rotate the coating roll with respect to the rotation direction. An adhesion part to which the coating agent extending in the intermittent width direction adheres is formed, and then the coating agent is partially removed from the adhesion part by masking means in which a plurality of notches are formed in the width direction of the coating roll. A coating method of a coating agent, which is transferred onto the surface of the sheet body. Wherein the rotation direction rear side of the coating roll of the coating material removing unit, the coating of claim 1, coating agents adjusting means for adjusting the thickness of the coating agent adhering to the coating roll outer surface is provided Agent coating method. The sheet according to claim 1 or 2 , wherein the sheet body is made of release paper, and the release paper on which the coating agent has been transferred is integrally adhered to the strip-shaped electrolytic paper for capacitor, and the coating agent is retransferred to the electrolytic paper. The coating method of the coating agent of description. The coating agent is attached to the outer surface of the rotating coating roll, and the sheet body is run on the outer surface of the coating roll, and the coating agent is continuously transferred to the surface of the sheet body through a masking means. The coating agent coating apparatus includes a coating agent removing unit that can repeatedly move in a direction in contact with and away from the coating roll, and the masking unit is attached in the width direction of the coating roll. A coating agent coating apparatus comprising a plurality of notches formed in a width direction of a coating roll for partially transferring the coating agent to the surface of the sheet body.

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