WO2008010470A1 - Enveloppe de cylindre - Google Patents

Enveloppe de cylindre Download PDF

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Publication number
WO2008010470A1
WO2008010470A1 PCT/JP2007/064054 JP2007064054W WO2008010470A1 WO 2008010470 A1 WO2008010470 A1 WO 2008010470A1 JP 2007064054 W JP2007064054 W JP 2007064054W WO 2008010470 A1 WO2008010470 A1 WO 2008010470A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
layer
roll cover
cover
thermoplastic fluoropolymer
Prior art date
Application number
PCT/JP2007/064054
Other languages
English (en)
Japanese (ja)
Inventor
Keigo Goshiki
Original Assignee
Junkosha Inc.
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 Junkosha Inc. filed Critical Junkosha Inc.
Publication of WO2008010470A1 publication Critical patent/WO2008010470A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
    • G03G15/2057—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating relating to the chemical composition of the heat element and layers thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42

Definitions

  • the present invention relates to a roll force par that constitutes a part of a roll used as, for example, a heat fixing roll or a pressure roll in a copying machine or a printer.
  • Copiers and printers are provided with a heat roll type fixing device that heats and fixes toner, and the fixing device includes, for example, a heat fixing roll and a pressure roll pressed against the heat fixing roll.
  • a heat fixing roll and a pressure roll pressed against the heat fixing roll.
  • Such a roll is composed of a round bar-shaped roll body and a tubular roll force par covering the outer peripheral surface thereof, and the roll cover is bonded to the outer peripheral surface of the roll body.
  • the material of the roll force par is a fluoropolymer having characteristics such as heat resistance and non-adhesiveness.
  • a tube (tube) made of fluoropolymer is generally used as a roll cover.
  • fluoropolymers have non-adhesive properties, in order to attach a tube body (roll cover) made of fluoropolymer to the roll body, first, the inner peripheral surface of the tubular roll cover (tube body) After surface treatment of the inner surface, it was necessary to adhere to the roll body using an adhesive.
  • the inner surface treatment of a tube made of such a fluoropolymer is described in, for example, Japanese Patent Application Laid-Open No. 10-60 1 39, in which a complex of sodium (alkali metal) and naphthalene is dissolved in an organic solvent.
  • Solution or sodium a Conventionally, a liquid ammonia solution in which (Lukari metal) is dissolved in liquid ammonia is sealed inside the tube and chemically treated, and then the inside of the tube is washed with alcohol, water, and aceton. Had been done more.
  • the inner surface of the roll cover needs to be treated in order to bond the roll cover to the roll body. Since the inner surface treatment uses metal sodium, it is dangerous and requires a cleaning step with alcohol, water, and acetone, and thus the productivity of the roll cover is significantly reduced by the very troublesome inner surface treatment step.
  • Japanese Patent Application Laid-Open No. Hei 10-6 0 1 3 9 discloses that continuous processing is possible, the productivity and workability are excellent, the processing solution does not deteriorate and the processing spots do not occur, and the processing effect is large.
  • a continuous inner surface treatment method for a fluororesin tube that can be treated with a liquid ammonia solution of an alkali metal that has not been used in the conventional continuous treatment method because of its high performance.
  • the continuous inner surface treatment method using a liquid ammonia solution requires large-scale equipment because the inner surface treatment needs to be performed at a low temperature.
  • the inside of the tube is alcohol, water, and-
  • the tube surface may be damaged by, for example, the tube being pinched by a pinch roller during chemical inner surface treatment. There was a risk that the print quality would deteriorate as a roll cover due to creases or wrinkles. Disclosure of the invention
  • the present invention has been made in view of the above-mentioned circumstances, and the object of the present invention is to improve the productivity of the roll cover and to prevent the dangerous and troublesome roll inner surface of the roll body from being treated without chemical treatment. It is an object of the present invention to provide a mouth cover made of a fluoropolymer that can be bonded with sufficient adhesive strength and that has excellent adhesion stability over time.
  • the roll force par of the present invention covers a round bar-shaped roll body, and in the tubular roll cover formed of a thermoplastic fluoropolymer, the roll force par comprises at least the first layer and the second layer.
  • the first layer is formed of a thermoplastic fluoropolymer and constitutes the outer peripheral surface of the roll cover
  • the second layer has a dicarboxylic anhydride group and is polymerizable within the ring.
  • the above-mentioned cover is formed of a thermoplastic fluoropolymer containing repeating units based on a cyclic hydrocarbon monomer having an unsaturated group (hereinafter also referred to as a thermoplastic fluoropolymer containing a dicarboxylic anhydride group). It is characterized by constituting the inner peripheral surface of the.
  • the first layer constituting the outer peripheral surface is formed of the thermoplastic fluoropolymer, so that the outer peripheral surface of the roll cover is non-adhesive, while the inner peripheral surface in contact with the main body of the roll is formed.
  • the second layer is formed from a thermoplastic fluoropolymer containing dicarboxylic anhydride groups, it can be formed with an organic solvent in which an alkali metal complex is dissolved or an alkali metal liquid ammonia solution. It is possible to adhere to the roll body without any chemical inner surface treatment.
  • the first layer is formed of a perfluoroalkoxyalkane polymer (PFA)
  • the second layer has a dicarboxylic anhydride group, and a polymerizable non-polymerizable group in the ring. It is characterized by being formed by a copolymer of a cyclic hydrocarbon monomer having a saturated group, tetrafluoroethylene, and perfluoroanenoquinobinenoreatenore. Since the first layer and the second layer are melted and integrated by, for example, two-layer extrusion molding, the first layer and the second layer are firmly bonded, and further excellent in durability and heat resistance.
  • a roll cover can be provided.
  • the productivity of the roll force par is excellent, and it is possible to bond to the mouth body with sufficient adhesive strength without chemical inner surface treatment of the dangerous and troublesome roll cover. It is possible to provide a roll cover made of a fluoropolymer characterized by excellent stability. Further, since the chemical inner surface treatment step is not required in the roll manufacturing process, the roll productivity can be remarkably improved, and the production cost of the roll can be reduced.
  • FIG. 1 is a perspective view showing a part of a roll 100 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1 and showing a section of the roll 100.
  • FIG. 1 is a perspective view showing a part of a roll 100 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1 and showing a cross section of the roll 100.
  • a roll 100 whose outline is shown in FIG. 1 is used as a pressure roll pressed against the heat fixing roll of, for example, a copier or printer (hereinafter referred to as “recording apparatus”).
  • the roll comprises a core bar 10, a roll body 20, and a roll cover 40.
  • the core bar 10 is a hollow or solid round bar made of a material such as metal, Preferably, it is made of aluminum, but any material may be used as long as it becomes a core portion that supports the roll 100.
  • the roll main body 20 is a cylindrical elastic body formed by being fixed to the outer peripheral surface of the core metal 10, and is preferably formed of silicon resin.
  • the roll body 20 is not limited to an elastic body, and may be formed of metal or the like.
  • the roll main body 20 and the core metal 10 are respectively configured.
  • a roll using the core metal 10 as described later as the roll main body 20 It may be in the form of 100.
  • the roll force par 40 has a roll body 20 (in the case of a roll 10 0 using the core 10 as the roll body 20, the core 10 is a roll. The same is applied to the main body 20.
  • the first layer 41 and the second layer constituting the inner layer of the roll cover 40 and the outer layer of the roll cover 40. Consists of 4 and 2.
  • the second layer 4 2 is bonded to the outer peripheral surface of the roll body 20 through an adhesive layer 30 or a primer.
  • the second layer 42 can be directly bonded to the outer peripheral surface of the roll body 20 without using an adhesive layer 30 or a primer.
  • the roll cover 40 of the present embodiment includes the first layer 41 that forms the outer layer and the second layer 42 that forms the inner layer, and the first layer 41 is a thermoplastic fluoropolymer.
  • the second layer 42 has a thermoplastic fluoropolymer containing a repeating unit based on a cyclic hydrocarbon monomer having a dicarboxylic anhydride group and having a polymerizable unsaturated group in the ring.
  • a thermoplastic fluoropolymer containing a dicarboxylic acid anhydride group it is referred to as a thermoplastic fluoropolymer containing a dicarboxylic acid anhydride group. It is possible to omit the inner surface treatment of the cover. Below, the characteristic part of the mouthpiece cap 40 which concerns on this invention is demonstrated.
  • the inventor of the present invention as a result of earnestly researching and developing a roll cover made of a thermoplastic fluoropolymer containing a dicarboxylic anhydride group, has found that from a thermoplastic fluoropolymer containing a dicarboxylic anhydride group. It has been found that the roll cover made can be bonded to the roll body 20 through the adhesive layer 30 or primer or directly without the above-mentioned surface treatment. Therefore, the present inventor forms the first layer 41 on the outer peripheral surface side of the roll cover 40 in contact with the recording medium by a thermoplastic fluoropolymer, and passes the roll body 20 and the adhesive layer 30 or a primer.
  • the second layer 42 that adheres without adhesive or the adhesive layer 30 is formed of a thermoplastic fluoropolymer containing dicarboxylic anhydride groups. The thermoplastic fluoropolymer retains non-adhesive properties.
  • the present inventor also provides a roll cover 40 comprising a first layer 41 formed from a thermoplastic fluoropolymer and a second layer 42 formed from a thermoplastic fluoropolymer containing a dicarboxylic anhydride group.
  • a roll cover 40 comprising a first layer 41 formed from a thermoplastic fluoropolymer and a second layer 42 formed from a thermoplastic fluoropolymer containing a dicarboxylic anhydride group.
  • thermoplastic fluoropolymer applicable to the first layer 4 1 constituting the outer layer of the roll cover 40 is perfluoroalkoxyalkane polymer (PFA), perfluoroethylenepropylene copolymer (FEP), ethylene-tetrafluoroethylene. Copolymer (ETFE), polyvinylidene fluoride (PVdF), etc.
  • PFA perfluoroalkoxyalkane polymer
  • FEP perfluoroethylenepropylene copolymer
  • ETFE ethylene-tetrafluoroethylene. Copolymer
  • PVdF polyvinylidene fluoride
  • the diameter of the tube used as the roll cover 40 can be arbitrarily adjusted according to the size of the roll body 20.
  • the thickness of the roll force bar 40 can be arbitrarily selected depending on the type of roll 100 and its usage, but generally it is preferably 10 to 300 ⁇ , more The preferred range is 20 to 150 m.
  • the thickness of the roll force par 40 is preferably one third or more of the thickness of the roll cover 40 from the viewpoint of durability and wear resistance.
  • the thickness of the second layer 42 is preferably not less than 0.01 ⁇ m in order to ensure sufficient adhesive strength with the roll body 20.
  • the roll cover 40 may be of a type that contracts in the radial direction or the axial direction by heat, or a type that does not contract.
  • the shrinkable type of the roll cover 40 can be arbitrarily selected depending on the type of the roll 100 and its usage.
  • thermoplastic fluoropolymer containing the dicarboxylic anhydride group of the second layer 42 of the roll cover 40 is a cyclic hydrocarbon having a dicarboxylic anhydride group and having a polymerizable unsaturated group in the ring. It can be obtained by copolymerization of a monomer (monomer) and a fluorine-containing monomer (monomer). Examples of cyclic hydrocarbon monomers having a dicarboxylic anhydride group and having a polymerizable unsaturated group in the ring are described below.
  • a cyclic hydrocarbon monomer having a dicarboxylic anhydride group and having a polymerizable unsaturated group in the ring (hereinafter sometimes abbreviated as “cyclic hydrocarbon monomer”).
  • Cyclic charcoal consisting of one or more 5-membered or 6-membered rings A polymerizable compound which is hydrogen fluoride and has a dicarboxylic acid anhydride group and an endocyclic polymerizable unsaturated group.
  • the cyclic hydrocarbon is preferably a cyclic hydrocarbon having one or more bridged polycyclic hydrocarbons.
  • a cyclic hydrocarbon composed of a bridged polycyclic hydrocarbon, a cyclic hydrocarbon in which two or more of the bridged polycyclic hydrocarbons are condensed, or a cyclic hydrocarbon in which a bridged polycyclic hydrocarbon and other cyclic hydrocarbons are condensed
  • this cyclic hydrocarbon monomer has one or more endocyclic polymerizable unsaturated groups, that is, polymerizable unsaturated groups existing between carbon atoms constituting the hydrocarbon ring.
  • This cyclic hydrocarbon monomer further has a dicarboxylic anhydride group (one CO—0—C0—), which is bonded to the two carbon atoms constituting the hydrocarbon ring.
  • the dicarboxylic acid anhydride group is bonded to two adjacent carbon atoms that constitute the ring of the cyclic hydrocarbon.
  • a halogen atom, an alkyl group, a halogenated alkyl group, or other substituents may be bonded to the carbon atom constituting the ring of the cyclic hydrocarbon instead of the hydrogen atom.
  • R in Chemical Formula 2 is a halogen atom selected from a lower alkyl group having 1 to 6 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, the lower alkyl A halogenated anolenoquinole group in which a hydrogen atom in the group is substituted with a halogen atom.
  • the cyclic hydrocarbon monomer is preferably a 5-norbornene-1,2-dicarboxylic acid derivative R (hereinafter referred to as NAH), represented by Chemical Formula 1, Chemical Formula 2 and Chemical Formula 5- 8 is a cyclic hydrocarbon monomer in which the substituent R is a methyl group. Most preferred is NAH.
  • the above-mentioned fluorine-containing monomers include tetrafluoroethylene (TFE), hexafluoropropylene (HFP), perfluoroalkylene resin / layer, black trifluoroethylene, and fluorination.
  • TFE tetrafluoroethylene
  • HFP hexafluoropropylene
  • perfluoroalkylene resin / layer black trifluoroethylene, and fluorination.
  • the ratio of the above-mentioned cyclic hydrocarbon monomer and fluorine-containing monomer (monomer) is 0.1 to 3 mol of cyclic hydrocarbon monomer with respect to all monomers. /. Preferably, 0.03 to 2 moles. /. More preferably.
  • thermoplastic fluoropolymer containing a dicarboxylic anhydride group used in the present invention
  • a general radical polymerization method is used.
  • the polymerization method include bulk polymerization, solution polymerization, suspension polymerization, and emulsion polymerization.
  • the roll force par 40 according to the present invention can be manufactured by a normal two-layer extrusion method. For example, two extruders with screws in a cylinder equipped with a heater are installed so that each material can be poured into the usual two-layer mold. Then, the material of the first layer 41 and the material of the second layer 42 are extruded from each extruder into a two-layer mold and distributed into two layers in the two-layer mold. The object to be molded distributed to the two layers is shaped into a desired size and shape using a sizing die. Methods such as vacuum sizing method and inside mandrel method can be used as a method for shaping into a desired dimensional shape.
  • the roll 100 manufacturing method is an application of a conventional roll manufacturing method.
  • conventional roll manufacturing methods for example, the following three manufacturing methods are generally implemented.
  • the first manufacturing method is, for example, that a certain thickness of silicone rubber, silicone foam, urethane rubber, fluorine rubber on the outer periphery of the metal core 10 at the center.
  • an adhesive layer 30 is provided on the surface, and then the roll cover 40 is covered with the roll main body 20.
  • the second manufacturing method is, for example, a method in which the metal core 10 at the center is directly provided with the adhesive layer 30 and the core cover 10 is covered with the roll cover 40. That is, the method uses the cored bar 10 as the roll body 20 without forming the roll body 20, and directly covers the roll force par 40 on the cored bar 10.
  • a roll force par 40 is disposed in the central metal core 10 so as to have a predetermined interval, and a material of the roll main body 20 such as unvulcanized silicone rubber is poured therebetween. Thereafter, the roll body 20 is formed by vulcanization.
  • a primer may be used when the roll body 20 (or the core metal 10) and the roll cover 40 are bonded.
  • PFA Fluoropolymer containing dicarboxylic anhydride groups
  • TFE / CFs-CFO (CF 2 ) 3 F / NAH 96.7 7/3. 2/0. 1 mol%
  • the outer diameter is 29 mm
  • the thickness of the first layer A roll cover A having a two-layer structure with a thickness of 45 ⁇ m and a second layer thickness of 5 ⁇ m was obtained.
  • a fluoropolymer surface treating agent tetraetch (registered trademark) manufactured by Junye Co., Ltd., a liquid obtained by dissolving sodium naphthalene complex in a solvent.
  • methanol, water, and acetone were washed in that order and dried.
  • Table 1 shows the test results of the mouthful lucapers of Example 1, Example 2, Example 3 and Comparative Example.
  • the chemical inner surface treatment is performed on the dangerous and troublesome mouth cover, which is excellent in productivity of the roll cover. It is possible to provide a mouth cover 40 made of a fluoropolymer, characterized in that it can be adhered to the mouth body with sufficient adhesive strength. Furthermore, since there is no need for chemical inner surface treatment, there is no fear of deterioration in adhesion stability over time at high temperatures, and it is possible to extend the service life. In addition, since the chemical inner surface treatment process is not required in the manufacturing process of the roll cover 40, the productivity of the roll force bar 40 can be remarkably improved, and the production cost of the roll cover 40 is further reduced. It can also be reduced. In addition, the environment It is also possible to provide manufacturing equipment with excellent measures. Further, since the primer treatment step is not necessary in the production process of the roll 100, the productivity of the roll 100 can also be improved.
  • the roll cover 40 has a two-layer structure including the first layer 41 and the second layer 42.
  • the roll force par 40 has a two-layer structure.
  • the multilayer structure has at least a first layer and a second layer, for example, the first layer is a thermoplastic fluorine polymer, and the intermediate layer is a thermoplastic fluorine containing a carbon-based filler. It can be a three-layer polymer with a polymer, and the second layer is a thermoplastic fluoropolymer containing a dicarboxylic anhydride group, or it can have a layer structure higher than that.
  • the roll 100 has the roll body 20 and the core metal 10, but the form of the tool 100 that uses the core metal 10 as the roll body 20.
  • the core bar 10 may function as the roll body 20.
  • the present invention is a force that can be implemented by using a thermoplastic fluoropolymer containing a dicarboxylic anhydride group and a thermoplastic fluoropolymer, and a thermoplastic fluoropolymer containing the dicarboxylic anhydride group and / or
  • the thermoplastic fluoropolymer is not limited to the thermoplastic fluoropolymer exemplified in the present specification, and may be any thermoplastic fluoropolymer applicable to the present invention.
  • a roll cover according to the present invention and a roll including the roll force par In addition to being used in the heating and pressure fixing unit of one machine or printer, etc., it can be applied to mouth products made of fluoropolymers used in various fields. Moreover, the manufacturing method of the cane according to the present invention can be applied to the manufacture of these canal products.

Abstract

L'invention concerne une enveloppe de cylindre caractérisée en ce qu'elle comprend une première et une seconde couche, la première couche étant constituée d'un polymère fluoré thermoplastique et la seconde couche étant constituée d'un polymère fluoré thermoplastique comportant un groupe anhydride dicarboxylique. De par sa constitution, la périphérie extérieure (première couche) de l'enveloppe de cylindre est non collante et sa périphérie intérieure (seconde couche) peut se lier avec le corps principal d'un cylindre avec une force de liaison suffisante pour éviter de devoir appliquer un quelconque traitement de surface chimique dangereux et problématique sur la surface intérieure. Il n'est ainsi pas nécessaire d'inclure une étape de traitement chimique de la surface intérieure dans le procédé de production de l'enveloppe de cylindre. L'enveloppe de cylindre de l'invention présente une excellente stabilité d'adhérence à long terme et sa productivité peut être fortement améliorée.
PCT/JP2007/064054 2006-07-20 2007-07-10 Enveloppe de cylindre WO2008010470A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006198773A JP2008026576A (ja) 2006-07-20 2006-07-20 ロールカバー
JP2006-198773 2006-07-20

Publications (1)

Publication Number Publication Date
WO2008010470A1 true WO2008010470A1 (fr) 2008-01-24

Family

ID=38956801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/064054 WO2008010470A1 (fr) 2006-07-20 2007-07-10 Enveloppe de cylindre

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JP (1) JP2008026576A (fr)
TW (1) TW200823254A (fr)
WO (1) WO2008010470A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003131510A (ja) * 2001-10-25 2003-05-09 Canon Inc ローラ及びこれを用いた加熱定着装置
JP2006084968A (ja) * 2004-09-17 2006-03-30 Fuji Photo Film Co Ltd 定着方法および定着装置
JP2006152234A (ja) * 2004-10-28 2006-06-15 Asahi Glass Co Ltd 含フッ素共重合体及びその用途

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4558381B2 (ja) * 2004-06-02 2010-10-06 株式会社潤工社 ロールの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003131510A (ja) * 2001-10-25 2003-05-09 Canon Inc ローラ及びこれを用いた加熱定着装置
JP2006084968A (ja) * 2004-09-17 2006-03-30 Fuji Photo Film Co Ltd 定着方法および定着装置
JP2006152234A (ja) * 2004-10-28 2006-06-15 Asahi Glass Co Ltd 含フッ素共重合体及びその用途

Also Published As

Publication number Publication date
TW200823254A (en) 2008-06-01
JP2008026576A (ja) 2008-02-07

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