CN101267928A

CN101267928A - Apparatus for producing resin tube, method for producing resin tube and resin tube

Info

Publication number: CN101267928A
Application number: CNA2006800340755A
Authority: CN
Inventors: 竹渕丰; 寺川学; 福光智彦
Original assignee: Air Water Chemical Inc; Air Water Mach Inc
Current assignee: Air Water Inc; Air Water Mach Inc
Priority date: 2005-09-16
Filing date: 2006-09-14
Publication date: 2008-09-17
Anticipated expiration: 2026-09-14
Also published as: WO2007032425A1; JP4825212B2; CN101267928B; JPWO2007032425A1

Abstract

Disclosed is an apparatus for producing resin tubes, which has a simple structure and enables to efficiently produce a resin tube whose inner surface is subjected to a homogenization treatment. Also disclosed are a method for producing a resin tube, and a method for producing a roller whose roller surface is covered with such a resin tube. Specifically disclosed is an apparatus for producing a resin tube (1) wherein a resin tube (20) is continuously discharged from an extruder (3) into a conductive liquid (76), while introducing a gas into the inside of the resin tube (20) discharged from the extruder (3) and discharging the gas from the inside of the resin tube (20). In addition, the inner surface of the resin tube (20) is subjected to a plasma process in this apparatus by arranging an inner electrode (71) in the resin tube (20) and applying a high-frequency voltage between the liquid (76) and the inner electrode (71) for generating a plasma within the resin tube (20).

Description

Pitch tube manufacturing installation, process for producing resin tube and pitch tube

Technical field

The present invention relates to make the manufacture method that inner surface has been implemented the pitch tube manufacturing installation of the pitch tube of plasma treatment, process for producing resin tube, has been coated on roller and this roller of periphery with the pitch tube of this method manufacturing, with this pitch tube.

Background technology

For the roller that uses as backer roll, fixing roller etc. in the image processing systems such as duplicator, printer, require according to its purposes, also to require to be difficult for adhering to the composition that contains in the toner sometimes in machinery, heat, chemically stable.As the roller that is used for such use, having proposed outer peripheral face is the roller that the roller main body of rubber system coats with the fluororesin tube of tetrafluoroethene perfluoroalkyl vinyl ether copolymer etc.When the inner peripheral surface of the outer peripheral face of roller main body and pitch tube is used adhesive, therefore the cohesive extreme difference of fluororesin tube and rubber has proposed inner surface enforcement erosion processing, the primary coat processing of fluororesin tube are waited and improve fusible scheme (with reference to patent documentation 1).

In addition, also proposed to place object being treated in the polybag and in this bag, produce plasma and object being treated is implemented the technical scheme (with reference to patent documentation 2) of plasma treatment.

But therefore above-mentioned arbitrary processing method all exists very low this problem of productivity ratio because object being treateds such as fluororesin tube are handled one by one.

On the other hand, proposed when the inboard of the pitch tube of discharging from extrusion forming device imports gas, to be arranged at the scheme (patent documentation 3) that applies high frequency voltage between the interior electrode in the inboard of this pitch tube and the outside and the external electrode and the inner surface of pitch tube is implemented continuously plasma treatment.

Patent documentation 1: the Japan Patent spy opens the 2005-163837 communique

Patent documentation 2: Japanese patent laid-open 6-285365 communique

Patent documentation 3: the Japan Patent spy opens the 2002-337210 communique

The announcement of invention

But the method for record in the patent documentation 3 be owing to can't avoid producing the gap between the outer surface of pitch tube and external electrode, so the problem that also produces plasma, damages the outer surface of pitch tube is arranged between the outer surface of pitch tube and external electrode.When being used as backer roll, fixing roller etc. in image processing systems such as duplicator, printer by the roller of its coating, the damage of this outer surface will cause toner material adhesion etc., thereby undesirable.

In view of above problem, problem of the present invention is to provide to make continuously and does not damage outer surface and implemented the pitch tube manufacturing installation, process for producing resin tube of the pitch tube of plasma treatment at inner surface, be coated on the manufacture method of roller and this roller of periphery with the pitch tube of this method manufacturing, with this pitch tube.

In order to solve above-mentioned problem, the pitch tube manufacturing installation that the present invention relates to is characterised in that, has conductive liquid, in aforesaid liquid, discharge the extrusion forming device of the pitch tube that is shaped continuously, be used for importing the air guide path of gas to the inboard of the above-mentioned pitch tube of discharging from this extrusion forming device, be used for the exhaust channel of gas from the inboard row of the above-mentioned pitch tube of discharging by above-mentioned extrusion forming device, and the electrode that is positioned at the inboard of the above-mentioned pitch tube of discharging from above-mentioned extrusion forming device, aforesaid liquid and above-mentioned in apply high frequency voltage between the electrode, make the inboard of above-mentioned pitch tube produce plasma, the inner surface of this pitch tube is carried out plasma treatment.

The manufacture method of the pitch tube that the present invention relates to is characterised in that, to conductive liquid, discharging pitch tube continuously from extrusion forming device, and when the inboard of the above-mentioned pitch tube of discharging from this extrusion forming device imports gas and goes out gas from the inboard row of this pitch tube, electrode is positioned at this pitch tube in making, aforesaid liquid and above-mentioned in apply high frequency voltage between the electrode, make the inboard of above-mentioned pitch tube produce plasma, the inner surface of this pitch tube is carried out plasma treatment.

Among the present invention, when pitch tube is discharged in the conductive liquid by extrusion forming device, import gas to the inside, between interior electrode that is disposed at its inboard and liquid, apply high frequency voltage by air guide path.Consequently, produce plasma in the inboard of pitch tube, thereby can carry out plasma treatment the inner surface of pitch tube.Thereby can make the pitch tube that inner surface has been implemented plasma treatment continuously, because the inner surface of described pitch tube passes through plasma treatment and surface active, so the cohesive excellence.And, can along the circumferential direction implement plasma treatment equably to the total inner surface of pitch tube.In addition, pitch tube is that external electrode carries out plasma treatment with the conductive liquid, and is very close to each other between the outside of pitch tube and liquid.Therefore, do not produce plasma, so can not damage the outside of pitch tube in the outside of pitch tube.

The present invention preferably has the ways that contacts with the inner peripheral surface of the above-mentioned pitch tube of discharging from above-mentioned extrusion forming device and keep the hole enlargement state of this pitch tube aforesaid liquid.Constitute if so,, can between interior electrode and pitch tube, constitute the space that produces plasma even then in liquid, also can keep the hole enlargement state of pitch tube.

The present invention preferably at least one side in above-mentioned air guide path and above-mentioned exhaust channel constitutes the regulator of regulating the pressure in the above-mentioned pitch tube.

The present invention also can in above-mentioned pitch tube, utilize the member that constitutes above-mentioned air guide path or above-mentioned exhaust channel constitute above-mentioned in electrode.

In the present invention, above-mentioned pitch tube is a fluororesin tube, for example the pipe of tetrafluoroethene perfluoroalkyl vinyl ether copolymer manufacturing.

The present invention preferably carries out then carrying out after the above-mentioned plasma treatment coating of coupling agent to the inner surface of the above-mentioned pitch tube of discharging continuously from above-mentioned extrusion forming device.When implementing this manufacture method, in the pitch tube manufacturing installation that the present invention relates to, in the inboard of the above-mentioned pitch tube of discharging from above-mentioned extrusion forming device, configuration provides the coupling agent supply unit of coupling agent to the inner surface of this pitch tube of having implemented above-mentioned plasma treatment.Constitute if so, then when making the roller that outer periderm pitch tube coats, need not to be coated with coupling agent to pitch tube.

In the present invention, above-mentioned gas preferably contains organic silane compound.Constitute if so, then when making the roller that outer periderm pitch tube coats, need not to be coated with coupling agent to pitch tube.

The pitch tube that the present invention relates to is covered by the periphery of the roller main body that the core periphery coated with certain thickness rubber layer and constitutes roller.

This roller suitable as in duplicator, printer and other image processing systems in order to the backer roll between the pressing member or with so that the fixing roller of toner material photographic fixing on media such as paper etc.

When making the roller of this class formation, insert above-mentioned roller main body in the inboard of above-mentioned pitch tube, then with the inner peripheral surface adhesive of the outer peripheral face and the above-mentioned pitch tube of this roller main body.In addition, also can adopt following method: insert above-mentioned core in the inboard of above-mentioned pitch tube, between this core and above-mentioned pitch tube, inject elastomeric material then, and this elastomeric material is solidified.

The simple declaration of accompanying drawing

Fig. 1 (a) and (b) are stereogram and cross-sectional views thereof of the roller that the present invention relates to.

Fig. 2 is the pattern diagram of the manufacture method of explanation roller shown in Figure 1.

Fig. 3 is the pattern diagram of another manufacture method of explanation roller shown in Figure 1.

Fig. 4 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 1.

Fig. 5 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 2.

Fig. 6 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 3.

Fig. 7 (a) and (b) are key diagrams of the pitch tube manufacturing installation that relates to of other embodiments.

Symbol description

1 pitch tube manufacturing installation

3 extrusion forming devices

7 plasma generating devices

10 rollers

11 cores

13 rubber layers

20 pitch tubes

35 moulds

37 inserts

51 air guide paths

52 exhaust channels

Electrode in 71

76 conductive liquids

81,82 ways

The best mode that carries out an invention

With reference to the description of drawings embodiments of the present invention.

[structure of roller]

Fig. 1 (a) and (b) are stereogram and cross-sectional views thereof of the roller that the present invention relates to.Fig. 2 is the pattern diagram of the manufacture method of explanation roller shown in Figure 1.Fig. 3 is the pattern diagram of another manufacture method of explanation roller shown in Figure 1.

Roller 10 shown in Fig. 1 (a) and (b) is used as backer roll, fixing roller etc. in duplicator, printer and other image processing systems etc., possess at the outer peripheral face of the metal coremaking material 11 roller main body 15 that the rubber layer 13 that formed by silicon rubber etc. coats with certain thickness, the pitch tube 20 that is coated on the outer peripheral face of rubber layer 13.

When making this roller 10, as shown in Figure 2, insert roller main body 15, between the inner peripheral surface of the outer peripheral face of roller main body 15 and pitch tube 20, inject adhesive (not shown) then and fix in the inboard of pitch tube 20.

Other manufacture methods of roller 10 are inserted pitch tube 20 in the inboard of cylindrical shape mould 18 as shown in Figure 3, then its two ends are fixed on the side form (not shown) that keeps core 11.Then, under high pressure elastomeric material is injected and be filled in the annulus between core 11 and the pitch tube 20, utilize this stuffing pressure to make pitch tube 20 expansion and when making the pitch tube 20 and the inner peripheral surface of cylindrical shape mould 18 bonding, make elastomeric material, pitch tube 20 and core 11 form whole.At this moment, according to the material of elastomeric material and pitch tube 20, preferably the inner surface at pitch tube 20 is coated with coupling agent in advance.

No matter make,, then problems such as pitch tube 20 comes off can occur if the cohesive of the inner surface of pitch tube 20 is low with above-mentioned which kind of method.Particularly tetrafluoroethene perfluoroalkyl vinyl ether copolymer fluorine type resin pitch tubes such as (hereinafter referred to as PFA) 20 is because cohesive is low, as described below in the present invention, when making pitch tube 20 progressive formings, the inner surface of pitch tube 20 is implemented plasma treatment continuously.Can not carry out plasma treatment when in the present invention, the inner surface of pitch tube 20 being implemented plasma treatment to the outer peripheral face of pitch tube 20.Therefore, when the backer roll, fixing roller etc. that the pitch tube 20 that the present invention relates to are coated on image processing systems such as duplicator, printer are gone up, the adhesion of toner material etc. can not appear.

[embodiment 1]

(structure of pitch tube manufacturing installation)

Fig. 4 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 1.Among Fig. 4, the structure of the pitch tube manufacturing installation 1 of present embodiment is: possess the extrusion forming device 3 that pitch tube 20 is shaped and discharges with the hole enlargement state, at the interior electrode 71 of the inboard configuring plasma generation device 7 of the pitch tube 20 of discharging with the hole enlargement state from this extrusion forming device 3.Interior electrode 71 is for example formed by conductive materials such as metal, carbon.

The structure of plasma generating device 7 is: possess the treatment trough 77 of storage of water class, organic solvent class, molten salts conductive liquid 76, the pitch tube 20 of discharging with the hole enlargement state from extrusion forming device 3 passes through liquid 76.Here, mixed electrolyte, surfactant etc. in liquid 76 as required.In addition, for liquid 76, by treatment trough 77 or wherein the dipping electrode apply voltage.

Extrusion forming device 3 is to utilize to melt extrude forming process and form the device of pitch tube 20 continuously by resin particle, the heater (not shown) of the resin particle heating and melting that possess the resin transfer pipe 30 that has the hopper 31 that is used to drop into resin particle up, will drop into from hopper 31, the screw device 33 that the resins in the resin transfer pipe 30 are sent.Resin transfer pipe 30 position, way therein is crooked downwards, the annular die 35 of the outer peripheral face of regulation pitch tube 20 is installed in its end, and the near cylindric insert 37 of the inner peripheral surface of regulation pitch tube 20 is arranged in the installed inside of mould 35.

With respect to the outside dimension and outside dimension about equally the ways 81 of insert 37 of insert 37 in the discharge direction downstream of pitch tube 20 configuration bottom surface sections, ways 81 contacts with inner peripheral surface from the pitch tube 20 of extrusion forming device 3 discharges and keeps the hole enlargement state of pitch tube 20 liquid 76.Here, the peripheral shape of ways 81 is circular, keeps pitch tube 20 hole enlargement state cylindraceous in liquid 76.Mould 35 and insert 37 are formed by aluminium, iron, other highly corrosion resistant metals, pottery, glass etc. respectively.

The configuration outside dimension forms annulus less than electrode 71 in the outside dimension of ways 81 and insert 37 cylindric between interior electrode 71 and pitch tube 20 between ways 81 and insert 37.And, disposing insulating materials 731,732 between interior electrode 71 and the insert 37 and between interior electrode 71 and ways 81.In addition, when insert 37 and ways 81 are insulating properties, can omit insulating materials 731,732.

With respect to insert 37, insulating materials 731, interior electrode 71, insulating materials 732 and ways 81, the air guide path 51 that form to be communicated with pitch tube 20 inside provides gas (reacting gas) from air guide path 51 annulus between electrode 71 and the pitch tube 20 in being formed at.That is, present embodiment in pitch tube 20, utilize the member that constitutes air guide path 51 constitute in electrode 71.

The gas that air guide path 5 provides for example is inert gases such as He, Ar, Ne, Kr, Xe, nitrogen, hydrogen, CO ₂, carbon oxide gas such as CO, O ₂Deng oxidizing gas, CF ₄Deng reacting gas, polymerizable unsaturated compound gases such as ethene, propylene, the reacting gas that fluorine carbon fluorochemical, air etc. mix.

In insert 37, also form exhaust channel 52 with the internal communication of the pitch tube 20 of discharging with the hole enlargement state from extrusion forming device 3.And, be configured for pitch tube 20 pressure inside are remained on the regulator 8 that is called valve etc. of setting at air guide path 51 and exhaust channel 52.

(operation)

In the pitch tube manufacturing installation 1 of said structure, form pitch tube 20 continuously by extrusion forming device 3, and in liquid 76, discharge pitch tube 20 with the hole enlargement state.Reacting gas is imported the inboard of the pitch tube 20 of discharging with the hole enlargement state.And then pitch tube 20 by the outside interior electrode 71 and liquid 76 between apply high frequency voltage, produce in the annulus that plasma is formed between pitch tube 20 and interior electrode 71, the inner surface of pitch tube 20 is carried out plasma treatment continuously.Promptly, if between interior electrode 71 and liquid 76, apply high frequency voltage, then produce glow discharge plasma in the inboard of pitch tube 20, contact with the inner surface of pitch tube 20 owing to contain the gas of the chemism excitation state material that generates by plasma, thereby can corrode, inject, generate the plasma treatment (surface modification) of free radical etc. to the inner surface of pitch tube 20.Therefore, can make the pitch tube 20 that inner surface has been implemented plasma treatment continuously.And, can along the circumferential direction implement plasma treatment equably to the total inner surface of pitch tube 20.In addition, owing to directly utilize from the mode of extrusion forming device 3 with hole enlargement state discharge pitch tube 20, electrode 71 in the inboard of pitch tube 20 imports gas and configuration, thus simple this advantage of apparatus structure had.

Present embodiment is utilized the external electrode of liquid 76 as essence, and is very close to each other between the outer peripheral face of pitch tube 20 and liquid 76.Therefore, do not produce plasma, so can not damage the outside of pitch tube 20 in the outside of pitch tube 20.

In addition, owing to the inner peripheral surface that has with the pitch tube 20 of discharging from extrusion forming device 3 contacts the ways 81 that keeps the hole enlargement state of pitch tube 20 liquid 76, so the inner peripheral surface of pitch tube 20 does not contact with interior electrode 71, can between pitch tube 20 and interior electrode 71, form annulus effectively.And ways 81 also prevents to leak from the unnecessary gas of pitch tube 20 inside, thereby reduces the use amount of reacting gas.

In addition, the pitch tube 20 of manufacturing is by conveyings such as

niproll

41,42, deflector rolls 431,432,44 and be wound into tubular in devices for taking-up (not shown).The pitch tube of making 20 also can not be wound into tubular, and is cut into given size by laser etc.In addition, can also configuration using in the top position of liquid 76 liquid removing device of squeegee, air injection nozzle etc.According to the kind of liquid 76, also can the pitch tube 20 that come out from liquid 76 be washed.

When making roller 10 shown in Figure 1,, pitch tube 20 is cut into given size, inserts roller main body 15 in the inboard of pitch tube 20 then as the explanation that reference Fig. 2 is done with the pitch tube of making as stated above 20.Then, with the inner peripheral surface adhesive of the outer peripheral face and the pitch tube 20 of roller main body 15.According to said method the roller 10 of Zhi Zaoing can utilize pitch tube 20 to give 10 on roller with various functions.

In addition,, also can insert core 11, between core 11 and pitch tube 20, inject elastomeric material then, and elastomeric material is solidified in the inboard of pitch tube 20 as the explanation that reference Fig. 3 is done.Preferably in rubber, add sulphur this moment.

Above-mentioned arbitrary roller 10 is because therefore the bonding strength height of roller main body 15 and pitch tube 20 can prolong 10 life-spans with the roller 10 of pitch tube 20 formations of roller.

Present embodiment is that example describes with PFA pitch tube 20, but as fluorine type resin pitch tube 20, except that PFA, present embodiment also is applicable to the pitch tube 20 of making polytetrafluoroethylene (PTFE), tetrafluoraoethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-ethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), chlorotrifluoroethylene-ethylene copolymer (ECTFE), Kynoar (PVDF), polyvinyl fluoride (PVF), tetrafluoroethylene-vinylidene fluoride copolymer etc.The present invention also is applicable to and makes fluorine type resin pitch tube 20 pitch tube 20 in addition.

And, between interior electrode 71 and pitch tube 20, can also dispose insulating materials.At the pitch tube 20 of discharging, can be arranged on pitch tube 20 and immerse the cooling device that liquid 76 is used for pitch tube 20 coolings before from extrusion forming device 3.

[embodiment 2]

Fig. 5 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 2.In addition, the basic structure of the pitch tube manufacturing installation of present embodiment is identical with embodiment 1, and therefore identical part is represented with prosign, and omits its explanation.

Embodiment 1 constitutes air guide path 51 in the electrode 71 in cylindric, but in the present embodiment, as shown in Figure 5, the coiled type member 511 that constitutes air guide path 51 in the pitch tube 20 is used as interior electrode 71.At this moment, ways 81 is also by the lower support of interior electrode 71.When insert 37b etc. is made of conductor, and embodiment 1 configuration insulating materials 731 between insert 37 and interior electrode 71 equally.When ways 81 is made of conductor, and embodiment 1 can dispose insulating materials 732 (not shown) equally between interior electrode 71 and ways 81.

[embodiment 3]

Fig. 6 is the key diagram of the pitch tube manufacturing installation that relates to of embodiment of the present invention 3.In addition, the basic structure of the pitch tube manufacturing installation of present embodiment is identical with embodiment 1, and therefore identical part is represented with prosign, and omits its explanation.

In embodiment 1, the lower position of electrode 71 in ways 81 is configured in, but as shown in Figure 6, also can be supported on the discoideus ways 82 of the lower position of insert 37 by supporting member 734 in the configuration of the top position of interior electrode 71.At this moment, the space of around interior electrode 71, guaranteeing to produce plasma by ways 82 and niproll 41,42.But, flatten because pitch tube 20 is held

roller

41,42, so interior electrode 71 and ways 82 have corresponding shape.In supporting member 734, ways 82 and interior electrode 71, form the air guide path that is communicated with the air guide path 51 of insert 37.In insert 37, the pipe arrangement 521 that constitutes exhaust channel 52 connects ways 82, the space opening that is disposed at interior electrode 71.Here, preferably in interior electrode 71 in the lower surface of air guide path 51 openings configuration barricade 79, in reacting gas imports efficiently electrode 71 around.

[other embodiments]

Fig. 7 (a) and (b) are key diagrams of the pitch tube manufacturing installation that relates to of other embodiments.In addition, the basic structure of pitch tube manufacturing installation shown in Fig. 7 (a) and (b) is identical with embodiment 1～3 respectively, so same section represents with prosign, and omits its explanation.

About the pitch tube manufacturing installation 1 shown in Fig. 7 (a), in the pitch tube device that embodiment 1 relates to, with respect to insert 37, insulating materials 731, interior electrode 71, insulating materials 732 and ways 81, be formed for the inner surface of pitch tube 20 is carried out the spraying of silane couplers such as acrylic silane, amino silane, the coupling agent importing path 90 of dropping, coupling agent imports path 90 and forms coupling agent supply unit 91 at the lower position opening of ways 81.Therefore, after the inner surface of the pitch tube 20 of discharge carries out plasma treatment continuously from extrusion forming device 3, can then carry out the coating of coupling agent.Therefore, use and have following advantage when making roller 10 with reference to the illustrated method of Fig. 1～Fig. 3: need be in another operation to the inner surface silane-coating coupling agent of pitch tube 20.

About the pitch tube manufacturing installation 1 shown in Fig. 7 (b), in the pitch tube device that embodiment 2 relates to, perforation insert 37 and insulating materials 731 backs form coupling agent importing path 90 by the inboard of electrode 71 in the coiled type towards ways 81, and this coupling agent importing path 90 forms coupling agent supply unit 91 at the side of ways 81 opening.Therefore, after the inner surface of the pitch tube 20 of discharge carries out plasma treatment continuously from extrusion forming device 3, can then carry out the coating of coupling agents such as acrylic silane, amino silane.Therefore, use and have following advantage when making roller 10 with reference to the method for Fig. 2, Fig. 3 explanation: need be in another operation to the inner surface silane-coating coupling agent of pitch tube 20.

In addition, when adopting structure shown in Fig. 7 (a) and (b), behind the inboard silane-coating coupling agent of pitch tube 20, be not wound into tubular, be cut into specific length, under the state that cuts off, make inboard dry the getting final product of pitch tube 20.In addition, the structure shown in Fig. 7 (a) and (b) also is applicable to embodiment 3.

In addition, replace structure shown in Fig. 7 (a) and (b), in the pitch tube manufacturing installation 1 that embodiment 1～3 relates to, contain organic silane compounds such as chlorosilane, alkoxy silane in the gas that air guide path 51 is provided, can carry out coupling processing to the inner surface of pitch tube 20, therefore use when making roller 10, can be omitted in another operation operation the inner surface coating coupling agent of pitch tube 20 with reference to the illustrated method of Fig. 3.

The possibility of utilizing on the industry

In the present invention, discharge continuously pitch tube from extrusion forming device, simultaneously in this pitch tube Plasma treatment is carried out on the surface continuously. Therefore, inner surface is activated because of plasma treatment, can The pitch tube that improves to make continuously cohesive. And, pitch tube with conductive liquid as dispatch from foreign news agency The utmost point is implemented plasma treatment, and is very close to each other between the outside of pitch tube and liquid. Therefore, exist The outside of pitch tube does not produce plasma, so can not damage the outside of pitch tube. In formation like this The inboard of pitch tube insert the roller main body, then the outer peripheral face of roller main body and the inner peripheral surface of pitch tube are used Adhesive is fixed, and can utilize pitch tube to give the roll surface of roller with various functions. In addition, at pitch tube The inboard insert plug after, between plug and pitch tube, inject elastomeric material and elastomeric material solidified, Can utilize too the roll surface of pitch tube pair roller to give various functions. Above-mentioned arbitrary roller is because the roller main body With the bonding strength height of pitch tube, thereby can prolong life-span of the roller that roll surface consists of with pitch tube.

Claims

1. the pitch tube manufacturing installation is characterized in that, has

Conductive liquid,

The extrusion forming device of the pitch tube that continuous discharge is shaped in described liquid,

Be used for to the inboard of the described pitch tube of discharging from this extrusion forming device import gas air guide path,

Be used for from the inboard row of the described pitch tube of discharging by described extrusion forming device gas exhaust channel and

Be positioned at the electrode of the inboard of the described pitch tube of discharging from described extrusion forming device,

Described liquid and described in apply high frequency voltage between the electrode and make the inboard of described pitch tube produce plasma, the inner surface of this pitch tube is carried out plasma treatment.

2. pitch tube manufacturing installation as claimed in claim 1 is characterized in that, has the ways that contacts with the inner peripheral surface of the described pitch tube of discharging from described extrusion forming device and keep the hole enlargement state of this pitch tube described liquid.

3. pitch tube manufacturing installation as claimed in claim 1 is characterized in that, at least one side in described air guide path and described exhaust channel constitutes the regulator of regulating the pressure in the described pitch tube.

4. pitch tube manufacturing installation as claimed in claim 1 is characterized in that, the member that in described pitch tube, utilize to constitute described air guide path or described exhaust channel constitute described in electrode.

5. pitch tube manufacturing installation as claimed in claim 1, it is characterized in that, in the inboard of the described pitch tube of discharging from described extrusion forming device, configuration provides the coupling agent supply unit of coupling agent to the inner surface of this pitch tube of having implemented described plasma treatment.

6. the manufacture method of pitch tube, it is characterized in that, to conductive liquid, discharge continuously pitch tube, and import gas and go out gas from the inboard row of this pitch tube to the inboard of the described pitch tube of discharging from this extrusion forming device from extrusion forming device, and electrode is positioned at this pitch tube in making

7. process for producing resin tube as claimed in claim 6 is characterized in that described pitch tube is a fluororesin tube.

8. process for producing resin tube as claimed in claim 7 is characterized in that, described pitch tube is a tetrafluoroethene perfluoroalkyl vinyl ether copolymer tubulation.

9. process for producing resin tube as claimed in claim 6 is characterized in that, the inner surface of the described pitch tube of discharging continuously from described extrusion forming device is carried out then carrying out after the described plasma treatment coating of coupling agent.

10. process for producing resin tube as claimed in claim 6 is characterized in that described gas contains organic silane compound.

11. pitch tube is characterized in that, with each described method manufacturing of claim 6～10.

12. roller is characterized in that, claim 11 described pitch tube is coated on the periphery of the roller main body that the core periphery coated with certain thickness rubber layer.

13. roller as claimed in claim 12 is characterized in that, is used as backer roll or fixing roller in duplicator, printer and other image processing systems.

14. the manufacture method of roller is characterized in that, when making the described roller of claim 12, inserts described roller main body in the inboard of described pitch tube, then with the inner peripheral surface adhesive of the outer peripheral face and the described pitch tube of this roller main body.

15. the manufacture method of roller is characterized in that, when making the described roller of claim 12, inserts described core in the inboard of described pitch tube, injects elastomeric material then between this core and described pitch tube, and this elastomeric material is solidified.