WO2002060982A1 - Procede de traitement de surface et dispositif de traitement par decharge couronne - Google Patents

Procede de traitement de surface et dispositif de traitement par decharge couronne Download PDF

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Publication number
WO2002060982A1
WO2002060982A1 PCT/JP2002/000576 JP0200576W WO02060982A1 WO 2002060982 A1 WO2002060982 A1 WO 2002060982A1 JP 0200576 W JP0200576 W JP 0200576W WO 02060982 A1 WO02060982 A1 WO 02060982A1
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WO
WIPO (PCT)
Prior art keywords
electrode
corona discharge
electrodes
treated
treatment method
Prior art date
Application number
PCT/JP2002/000576
Other languages
English (en)
Japanese (ja)
Inventor
Toshiki Takizawa
Original Assignee
Kabushiki Kaisha Bridgestone
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Bridgestone filed Critical Kabushiki Kaisha Bridgestone
Publication of WO2002060982A1 publication Critical patent/WO2002060982A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • B29C59/106—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment the electrodes being placed on the same side of the material to be treated

Definitions

  • the present invention relates to a method for performing surface treatment on a large non-conductive and thick object to be treated, and a corona discharge treatment apparatus used for the surface treatment.
  • a method has been known in which the surface of a resin film such as polypropylene / polyethylene is subjected to a corona discharge treatment to improve the wettability of the surface of the resin film, thereby improving the coating property and adhesiveness.
  • a corona discharge treatment as shown in Fig. 3, a pair of electrodes consisting of a discharge electrode 1 and a counter electrode 2 are arranged facing each other at a distance of several mm According to (3), a high-frequency voltage of several tens of kV is applied between the electrodes (1) and (2) to generate corona discharge between the electrodes (1) and (2) and a resin film between the electrodes (1) and (2).
  • the object 50 to be treated is disposed, and the surface of the object to be treated is subjected to corona discharge treatment for reforming.
  • a highly reactive active group is generated on the surface of the object 50 due to the collision of electrons due to the corona discharge and the action of ozone and ultraviolet rays generated secondarily. Surface wetting characteristics and reactivity can be improved.
  • the surface of one of the electrodes 1 and 2 (discharge electrode 1 in FIG. 3) is usually covered with a coating made of an insulating material such as vinyl chloride or Teflon. It is covered with member 4.
  • the corona discharge treatment is not limited to the above resin film, but is used only for surface treatment of non-conductive materials such as resin molded products, film surfaces of resin film laminate products, and resin painted surfaces of wood and the like. It is also used for surface treatment of metal such as photosensitive drums in developing devices.
  • the object to be processed is a conductive material, generally, the object to be processed is often used as a counter electrode.
  • the workpieces 50 are paired with each other. It is effective when the object 50 is an extremely thin material such as the resin film described above, since it is installed between the opposite discharge electrode 1 and the opposite electrode 2. In the case of a material that has a problem, it is necessary to increase the distance between the electrodes, so that even when a high voltage is applied, no discharge may occur.
  • a film surface or resin-coated surface of a non-conductive and thick material such as a polyvinyl fluoride film laminated wood or a fluorinated resin-coated wood should be subjected to corner discharge treatment.
  • a non-conductive and thick material such as a polyvinyl fluoride film laminated wood or a fluorinated resin-coated wood should be subjected to corner discharge treatment.
  • the present invention has been made in view of the conventional problems, and provides a method for efficiently performing surface treatment even on a large non-conductive and thick material, and a corona discharge suitable for the surface treatment. It is an object to provide a processing device.
  • the surface treatment method according to claim 2 wherein the first and second electrodes are moved in association with each other on the processing surface of the object to be processed, and corona discharge processing is performed on the processing surface of the object. This makes it possible to easily perform the surface treatment on the treated surface without moving the object to be treated.
  • a surface treatment method according to claim 3 is characterized in that a distance between the first electrode and the second electrode is set to 5 mm or less.
  • a surface treatment method according to claim 5 is characterized in that the treated surface of the object to be treated is a resin or a painted surface.
  • the treated surface is a surface containing a fluororesin.
  • the corona discharge treatment device wherein the first electrode is coated with a roll-shaped insulating material, and is disposed in close proximity to a treatment surface of the treatment object.
  • a high-frequency high-frequency voltage is applied between the second electrode provided at a predetermined distance from the first electrode and the first and second electrodes, and a corona discharge is applied between the two electrodes.
  • the processing surface is sequentially modified.
  • FIG. 1 is a diagram showing a configuration of a corona discharge treatment apparatus according to the best mode of the present invention.
  • FIG. 2 is a diagram showing an example of an electrode configuration in a corona discharge treatment device according to the best mode of the present invention.
  • FIG. 3 is a diagram showing a configuration of a conventional corona discharge treatment device. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a schematic diagram showing a configuration of a corona discharge treatment apparatus according to the present embodiment, where 10 is a first electrode provided in close proximity to a treatment surface 50 S of a workpiece 50, 2
  • Reference numeral 0 denotes a second electrode provided in the vicinity of the first electrode 10 described above, and the second electrode is on the same side as the first electrode 10 and the object 50, that is, It is installed on the processing surface 50 S side of the object 50.
  • Reference numeral 30 denotes a high-frequency oscillator 31 and a high-voltage transformer 32.
  • a high-frequency high-frequency voltage is applied between the first electrode 10 and the second electrode 20, and the electrodes 10 and 2 are applied.
  • ⁇ A high voltage generator for generating a corona discharge between them, 40 is made of an insulating material, and is a roll-shaped coating for coating the surface of the second electrode 20 It is a member.
  • the first electrode 10 includes a roll-shaped covering member 40 made of a silicon tube in which a portion including a portion 10T facing the processing surface 5OS of the processing object 50 is formed of a silicon tube. Consists of a 3 mm diameter stainless steel rod covered with. At this time, a slight gap was provided between the stainless steel rod and the covering member 40 so that the covering member 40 could rotate on the processing surface.
  • the second electrode 20 is made of a stainless steel flat plate having a thickness of 0.5 mm, a width of 10 mm, and a length of 80 mm, and the opposed portion 10T of the first electrode 10 and the second electrode 20 are formed.
  • the first electrode 10 and the second electrode 20 are arranged such that the side surface 20T in the length direction is parallel to each other at a predetermined distance. .
  • the object 50 to be subjected to corona discharge treatment is made of a non-conductive, thick, large-sized material such as a fluororesin-coated wood.
  • a corona discharge is applied between the first and second electrodes 10 and 20 (actually, between the side surface 40T of the covering member 40 facing the second electrode 20 and the side surface 20T of the second electrode 20).
  • the discharge area of this corona discharge comes into contact with the processing surface (fluorine-based resin-coated surface) 5 OS located immediately below the first and second electrodes 10 and 20.
  • the fluororesin-coated surface is modified by corona discharge and activated.
  • the first electrode 10 and the second electrode 20 are integrated by, for example, disposing them in one housing, and the roll-shaped covering member 40 is attached to the processing surface of the workpiece 50. 5 By rotating on the OS, the first and second electrodes 10 and 20 are moved to perform a corona discharge treatment on the entire processing surface 50S of the workpiece 50. I'm trying.
  • the shapes and materials of the first electrode 10 and the second electrode 20 are not limited to the above examples, and may be appropriately determined by the shape and material of the processing surface 50S of the workpiece 50. I can do it.
  • the covering member 40 is made of silicon rubber. However, natural rubber or ceramic may be used.
  • the conditions of the corona discharge treatment such as the electrode spacing are appropriately determined by the shape and material of the treated surface 50 S of the object 50 to be treated and the processing specifications.
  • the electrode distance d with the second electrode 20 is desirably set to 5 mm or less, the applied voltage V is 5 kV or more and 25 kV or less, and the frequency is 20 kHz to 4 kHz. It is desirable that ⁇
  • the object 50 to be treated is made of a fluorine-based resin-coated wood.
  • the corona discharge treatment apparatus of the present invention may be a polyvinyl fluoride film or ethylene-tetrafluoroethylene.
  • Resin film such as copolymer film, polyvinyl fluoride film laminated paper, polyethylene tetrafluoroethylene copolymer film laminated paper or laminated material such as polyvinyl fluoride film laminated wood, polyethylene sheet and propylene It can be applied to the surface treatment of sheet materials such as sheets, as well as painted building materials such as fluorinated resin-coated concrete extruded plates and fluorinated resin-painted ceramic siding boards. .
  • a 1-part silicone sealing material (SH780) manufactured by Toray Dow Corning Co., Ltd. was applied to the treated surface with a width of 10 mm and a thickness of 5 mm. Table 1 shows the results of 90-degree tensile test and evaluation of the adhesiveness.
  • Comparative Example 1 the results for a sample without corona discharge treatment are also shown.
  • Table 2 below shows the results of corona discharge treatment performed in the same manner as in Experimental Example 1 above, with the electrode voltage fixed at 14 kV and the frequency fixed at 4 OkHz, and with the electrode spacing varied.
  • one of the first and second electrodes arranged close to each other is covered with an insulating material, and both the first and second electrodes are A corona discharge generated by applying a high-frequency high voltage between the two electrodes is brought into contact with the processing surface of the object to be processed, and is disposed close to the processing surface of the object to be processed. Since corona discharge treatment is conventionally performed, corona discharge treatment can be efficiently performed even with a large, non-conductive and thick material, which has conventionally been difficult to perform corona discharge treatment.
  • the insulating material is formed in a roll shape, and the port is moved on the processing surface of the object to be processed so that the processing surface is sequentially reformed, so that the processing surface of the object is efficiently processed. Corona discharge treatment can be performed well.

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  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

L'invention concerne un procédé de traitement de surface, qui comporte les étapes consistant à : recouvrir d'un isolant une première et une deuxième électrodes placées à proximité l'une de l'autre ; et installer les première et deuxième électrodes à proximité de la surface traitée d'une matière traitée, de façon à permettre un traitement efficace de la surface d'une grande matière épaisse non conductrice. La surface traitée peut être modifiée par l'apport d'une décharge couronne produite par l'application d'une haute tension haute fréquence sur les électrodes en contact avec ladite surface traitée de matière traitée.
PCT/JP2002/000576 2001-01-30 2002-01-25 Procede de traitement de surface et dispositif de traitement par decharge couronne WO2002060982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-22462 2001-01-30
JP2001022462A JP2002226614A (ja) 2001-01-30 2001-01-30 表面処理方法及びコロナ放電処理装置

Publications (1)

Publication Number Publication Date
WO2002060982A1 true WO2002060982A1 (fr) 2002-08-08

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PCT/JP2002/000576 WO2002060982A1 (fr) 2001-01-30 2002-01-25 Procede de traitement de surface et dispositif de traitement par decharge couronne

Country Status (2)

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JP (1) JP2002226614A (fr)
WO (1) WO2002060982A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006088980A1 (fr) 2005-02-17 2006-08-24 The Procter & Gamble Company Composition de soin de tissus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7393050B2 (ja) 2020-04-06 2023-12-06 アートビーム株式会社 放電電極板

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163743A (ja) * 1986-01-11 1987-07-20 Nippon Paint Co Ltd 表面処理法
JPH0231835A (ja) * 1988-07-19 1990-02-01 Nippon Paint Co Ltd コロナ放電処理装置
US5038036A (en) * 1989-12-19 1991-08-06 Nippon Paint Co., Ltd. Corona discharge processing apparatus
JPH0559198A (ja) * 1991-02-02 1993-03-09 Softal Elektron Gmbh 種々な形状及び厚さをもつた導電性及び非導電性材料の間接的コロナ処理装置
JPH08155292A (ja) * 1994-12-01 1996-06-18 Shimada Phys & Chem Ind Co Ltd 放電処理用電極及び放電処理装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163743A (ja) * 1986-01-11 1987-07-20 Nippon Paint Co Ltd 表面処理法
JPH0231835A (ja) * 1988-07-19 1990-02-01 Nippon Paint Co Ltd コロナ放電処理装置
US5038036A (en) * 1989-12-19 1991-08-06 Nippon Paint Co., Ltd. Corona discharge processing apparatus
JPH0559198A (ja) * 1991-02-02 1993-03-09 Softal Elektron Gmbh 種々な形状及び厚さをもつた導電性及び非導電性材料の間接的コロナ処理装置
JPH08155292A (ja) * 1994-12-01 1996-06-18 Shimada Phys & Chem Ind Co Ltd 放電処理用電極及び放電処理装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006088980A1 (fr) 2005-02-17 2006-08-24 The Procter & Gamble Company Composition de soin de tissus

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JP2002226614A (ja) 2002-08-14

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