CN101470373A - Manufacturing method for roller for office automation machine and roller for office automation machine - Google Patents
Manufacturing method for roller for office automation machine and roller for office automation machine Download PDFInfo
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- CN101470373A CN101470373A CN 200810189220 CN200810189220A CN101470373A CN 101470373 A CN101470373 A CN 101470373A CN 200810189220 CN200810189220 CN 200810189220 CN 200810189220 A CN200810189220 A CN 200810189220A CN 101470373 A CN101470373 A CN 101470373A
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Abstract
The invention offers an OA apparatus roller that has a surface layer formed by applying fluororesin and baking it, that has various excellent properties without impairing the parting ability and thermal conductivity, and that is suitable for mass production. An OA apparatus roller is produced by forming an elastic layer and a surface layer in this order on a core metal. In the roller, the surface layer is composed of a plurality of fluororesin layers and has a thickness of 6 to 30 mum. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, at least one layer is a fluororesin layer containing filler. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, the outermost layer is a fluororesin layer containing no filler and at least one layer other than the outermost layer is a fluororesin layer containing filler.
Description
Technical field
The present invention relates to be used for the manufacture method of roller of office automation (OA) machine and the roller that the OA machine is used.This roller can be used for developer roll in fixing roller in the fixing device of OA machines such as duplicating machine and backer roll, the developing apparatus and charging roller etc.
Background technology
As a rule, the roller that the OA machine is used has such structure: be formed with the rubber layer as elastic layer on the periphery of mandrel, further be formed with PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether resin), PTFE (teflon) as the top layer or FEP fluoropolymer resin layers such as (exhaustive fluorinated ethylene propylenes) to give release property on this elastic layer.
But people require to develop the roller that the OA machine of the requirement of the colorize that can satisfy duplicating machine etc. and high speed is used in recent years, for this reason, wish that roller increases on flexibility than existing roller, and the skin depth of roller is thinner to form more soft roller thereby this requires.
But as described below, the manufacture method of the roller that employing OA machine is in the past used can not fully satisfy these requirements.
For example, adopting the fluorine resin powder to form in the powder coating of fluoropolymer resin layer, because the thickness in monolayer that can form is more than 20 μ m, so be difficult to fully satisfy the requirement of high speed.
In addition, formed in the method (patent documentation 1) on top layer by the pipe of fluorine resin manufacturing in employing, the thickness of pipe is thin more, is difficult to more pipe is inserted, and exists the problem of the selling at exorbitant prices of pipe.In addition, when the cambium layer laminated structure, for example need to make 2 layers of pipe or form the stacked back of the mono-layer tube more than 2 layers integrated, but make thickness is that 2 layers of following pipe of 30 μ m are extremely difficult, in addition in that the pipe more than 2 layers is stacked and when forming roller, need in the high temperature more than 400 ℃, carry out sintering to become one,, thereby have the problem that is not suitable for using owing to the rubber layer generation deterioration of thermotolerance than the poor heat resistance of fluorine resin.
On the other hand, as the method that forms thin fluoropolymer resin layer, the method for using the fluorine resin dispersion liquid to form fluoropolymer resin layer is arranged.
As using the fluorine resin dispersion liquid to form a kind of in the method for fluoropolymer resin layer, coating fluorine resin dispersion liquid on the outer peripheral face of rubber layer, sintering forms fluoropolymer resin layer then.But, with regard to this method, if obtain to have the top layer of good characteristic, then need to carry out for a long time abundant sintering, if and carry out long-time sintering, the same with the method for above-mentioned employing pipe, need in the high temperature more than 400 ℃, carry out sintering, therefore exist the problem of thermotolerance than the rubber layer generation deterioration of the poor heat resistance of fluorine resin.
On the other hand, (this method forms the method for fluoropolymer resin layer for using the fluorine resin dispersion liquid to the manufacture method of the roller of using as the OA machine, wherein thereby the heat when the sintering fluoropolymer resin layer can not have influence on rubber layer and form the top layer), such method is arranged: coating fluorine resin dispersion liquid on the inner peripheral surface of cylindric mould, form fluoropolymer resin layer by sintering, again mandrel is inserted in the cavity of above-mentioned cylindric mould, between above-mentioned fluoropolymer resin layer and mandrel, inject then and form the material that rubber layer is used, after the sulfuration, goods are extracted out from cylindric mould, made roller thus.According to this method, because rubber layer is not subjected to the influence of sintering temperature, thus can make the fluorine resin tight burning, and can prevent the rubber layer deterioration.
But, when stating method in the use, from cylindric mould, extract goods out (hereinafter referred to as the demoulding)) after, surfactant, film intensifier or the tackifier that contained in the coating (fluorine resin dispersion liquid) during as sintering decomposition product and remain on the inner peripheral surface of cylindric mould, when reusing, the release property of cylindric mould inner peripheral surface is reduced, and finally causing can't the demoulding from mould.And in order to recover release property, the cleaning of removing these residues on the cylindric mould bothers very much, has the problem that is not suitable for batch process.
As mentioned above, in the manufacture method of the roller that traditional OA machine is used, be difficult to form thin fluoropolymer resin layer, thereby be difficult to improve the flexibility on top layer to satisfy the requirement of colorize and high speed.
[patent documentation 1] TOHKEMY 2004-276290 communique
Summary of the invention
Therefore, the problem to be solved in the present invention provides the manufacture method of the roller that a kind of OA machine uses and the roller that the OA machine is used, the manufacture method of the roller that wherein said OA machine is used is such method: thus the thickness attenuation on the top layer that will be formed by fluoropolymer resin layer improves the top layer flexibility, and release property is good, and can prevent rubber layer generation deterioration, even when using cylindric mould, can not be attached with residue on the inner face at cylindric mould simultaneously yet.
In the fluorine resin dispersion liquid, in order to guarantee the dispersion stabilization of fluorine resin, and with the good wetting state of coil serving, contain the surfactant about 15 weight %～20 weight % usually.And, contain film intensifier and tackifier about 10 weight %～15 weight % respectively in order to have good film forming.
But, when sintering is insufficient, on fluoropolymer resin layer, understand residual surfactant, film intensifier and tackifier behind the sintering, thereby reduced the release property of fluoropolymer resin layer.
Therefore, the inventor is through further investigation, found that, when film is enough thin, also can film forming even reduce surfactant, film intensifier and tackifier, and when reducing surfactant, film intensifier and tackifier, even without long-time abundant sintering, also can make these surfactants, film intensifier and tackifier not residual, thereby release property is reduced.That is to say,, can form the fluoropolymer resin layer that has filming and release property concurrently according to said method.
In addition, also find, the surfactant, film intensifier and the tackifier that are contained in the fluorine resin dispersion liquid are reduced, by adopting such method, can finish sintering at short notice, therefore sintering temperature can cause the deterioration influence to rubber layer hardly, can produce the roller that excellent OA machine is used.
In addition, thereby coating fluorine resin dispersion liquid carries out in the method for sintering formation fluoropolymer resin layer then on the inner face of cylindric mould, and as mentioned above, the residue on the inner face of cylindric mould is the analyte of surfactant, film intensifier and tackifier.
In addition, find to be taken place not adhering to of foreign matter by significantly reducing above-mentioned surfactant, film intensifier and tackifier.Therefore, using cylindric mould to form in the method for fluoropolymer resin layer, by using the fluorine resin dispersion liquid that wherein surfactant, film intensifier and tackifier significantly reduce, can produce the roller that the OA machine is used, this roller can carry out abundant sintering under the situation that does not cause the rubber layer deterioration fully, and is applicable to batch process.
Can access the roller of top layer attenuation thus, thereby can guarantee to have good flexibility, and can provide a kind of to flexibility have special requirement, can satisfy the roller that OA machine that colorize and high speed require is used.And, because release property is good, and can not cause the influence of deterioration to rubber layer, thus the roller that can provide a kind of OA machine to use with high-durability.
And, owing to can form film, even also can guarantee to have good flexibility so form multilayer, can adapt to colorize and high speed requirement on the one hand, also can make each layer have different functions respectively on the other hand, have the roller that multi-functional OA machine is used thereby can provide, and realized this multi-functional being difficult to by individual layer.
In addition, by forming the top layer, can also reduce the defective of pore and so on, and can improve productive rate, may be provided in the roller that this low OA machine is used thus by multilayer.
Total content to surfactant contained in the fluorine resin dispersion liquid, film intensifier and tackifier is studied, and found that 1.0 weight %～5 weight % are suitable.
During less than 1.0 weight %, the dispersion stabilization of fluorine resin dispersion liquid can reduce, and is poor to the wetting state of coil serving, is difficult to film forming.
But, if surpass 5 weight %, not carrying out sintering if do not spend time enough, the residual analyte that surfactant, film intensifier, tackifier are arranged of meeting in the fluoropolymer resin layer behind the sintering causes bad influence to release property so.And, on the inner face of cylindric mould, during film forming, may on the inner face of cylindric mould, adhere to residue.
Therefore, claim 1 of the present invention provides the manufacture method of the roller that a kind of OA machine uses, the manufacture method of the roller that it is used for a kind of OA machine that is formed with elastic layer and top layer on mandrel successively, it is characterized in that, described top layer is made of the fluorine resin dispersion liquid, and the total content of the surfactant in the described fluorine resin dispersion liquid, film intensifier and tackifier is 1.0～5.0 weight %.
In the invention of this claim, as mentioned above, will be by the thickness attenuation on the formed top layer of fluoropolymer resin layer, can improve heat conductivity, and obtain good release property, and can prevent rubber layer generation deterioration, even when using cylindric mould, can not adhere to residue on the inner face at cylindric mould simultaneously yet.
In addition, when stacked above-mentioned multilayer fluorine-contained resin bed, preferably, adopt methods such as plasma treatment, electrodischarge machining, chemical etching that the surface of the fluoropolymer resin layer that formed is handled to improve wetting state, and then coating fluorine resin dispersion liquid, can form thus smoothly and the film of good adhesion.
In addition, using under the situation of cylindric mould, when the coating adhesive linkage,, preferably also plasma treatment etc. is being carried out on the surface of fluoropolymer resin layer in order to improve the wetting state with fluoropolymer resin layer.
In addition, there is no particular limitation to elastic layer, can use various elastic layers.For example, can applying solid rubber or spongy rubber various rubber such as (foaming latex (ba1loon gum)).
The mandrel of the roller that the OA machine is used among the present invention is preferably by formations such as (for example) aluminium, iron, carbon steel, stainless steels.
In addition, in the present invention, also can between elastic layer and top layer, be provided with the middle layer.
The middle layer that has various functions by setting except having above-mentioned effect, can also provide a kind of roller that OA machine that various users require is used that satisfies.
Particularly, the middle layer of high heat conductive rubber system and the middle layer of conductive rubber system can be enumerated in described middle layer.In addition, described middle layer also can be the layer that is made of cementing agent.
As previously mentioned, the total content of the surfactant in the fluorine resin dispersion liquid, film intensifier and tackifier is preferably below the 5 weight %, the content of wherein said film intensifier and tackifier is preferably respectively below the 1 weight %, more preferably is substantially devoid of described film intensifier and tackifier.
The invention of record provides the manufacture method of claim 1 roller that described OA machine is used in the claim 2, it is characterized in that the above-mentioned film intensifier in the above-mentioned fluorine resin dispersion liquid and the content of tackifier are below the 1 weight %.
The invention of record provides the manufacture method of claim 2 roller that described OA machine is used in the claim 3, it is characterized in that, is substantially devoid of above-mentioned film intensifier and tackifier in above-mentioned fluorine resin dispersion liquid.
The manufacture method of the invention of the record roller that any described OA machine is used to the claim 3 that is claim 1 is characterized in that in the claim 4, and the fluorine resin in the above-mentioned top layer is at least a among PFA, PTFE, the FEP.
In the invention of this claim record, owing to use PFA, PTFE or FEP as fluorine resin, thereby formed thermotolerance and all excellent more top layer of release property.
The manufacture method of the invention of the record roller that any described OA machine is used to the claim 4 that is claim 1 is characterized in that above-mentioned top layer is formed by the fluorine resin of individual layer in the claim 5, and its thickness is 3～15 μ m.
The roller that the invention of this claim record provides such OA machine to use, promptly, for above-mentioned top layer, because the thickness of fluoropolymer resin layer is 3～15 μ m, so can guarantee its function as the top layer, simultaneously can further improve the flexibility on top layer, to satisfy the requirement of higher levels of colorize and high speed.
In addition, more preferably skin depth is below the 12 μ m.
The manufacture method of the invention of the record roller that any described OA machine is used to the claim 4 that is claim 1 in the claim 6, it is characterized in that, above-mentioned top layer is made of multilayer fluorine-contained resin bed, and the thickness of each layer is 3～15 μ m, and gross thickness is 6～30 μ m.
According to the invention of this claim record, because the gross thickness on top layer is more than the 6 μ m, therefore can form multilayer, and can access top layer with excellent multiple function.In addition, the thickness on top layer is below the 30 μ m, thus can keep flexibility and guarantee heat conductivity, and can satisfy the requirement of colorize and high speed.And owing to thin thickness to the 3～15 μ m with each layer, so can form multilayer with when realizing multifunction, the gross thickness that makes the top layer is within above-mentioned scope.
As being used to form multilayer to realize the concrete grammar of multifunction, preferably outermost layer is formed the fluoropolymer resin layer that does not contain the filler that to give various functions, and in each layer except outermost layer, having one deck at least is the layer that contains the filler that can give various functions.
By forming this preferred construction, can improve the function such as electric conductivity, heat conductivity, mar proof, intensity on top layer.Thereby the roller that can provide the OA machine that has various excellent specific properties and can obtain higher function to use.
As filler, metal powders such as Cu, Al, ion salt etc. are for example arranged with electric conductivity; As filler, SiC, TiO are for example arranged with heat conductivity and mar proof
2, BN etc.
In addition, the integral thickness of multilayer fluorine-contained resin bed is preferably below the 20 μ m, more preferably below the 15 μ m, more preferably below the 12 μ m.
The manufacture method of the invention of the record roller that any described OA machine is used to the claim 6 that is claim 1 in the claim 7, it is characterized in that, the above-mentioned fluorine resin dispersion liquid of coating on the inner face of cylindric mould, form the top layer that constitutes by above-mentioned fluoropolymer resin layer by sintering, then mandrel is inserted in the cavity of cylindric mould, inject in the gap between above-mentioned top layer and mandrel afterwards be used to form elastic layer material to form elastic layer, will on above-mentioned mandrel, be formed with the roller that the OA machine on elastic layer and top layer uses and from cylindric mould, extract out.
In the invention of this claim record, owing to form the top layer under the condition that elastic layer is not had influence in sintering temperature, so sintering can not cause the deterioration of elastic layer.As mentioned above, be set at predetermined amount by total content with the surfactant in the fluorine resin dispersion liquid, film intensifier and tackifier, on the inner face of cylindric mould, can not adhere to residue, therefore do not need cleaning can use cylindric mould repeatedly, thereby can produce the roller that OA machine with thin top layer is used in batches.
The roller used for the OA machine of invention of record is characterized in that in the claim 8, and this roller is to adopt the manufacture method of the roller that claim 1 any described OA machine to the claim 7 uses to make.
The invention of this claim record, owing to be to adopt the manufacture method of the roller that claim 1 any described OA machine to the claim 7 uses to make, so can satisfy the requirement of colorize and high speed, and can obtain high image quality.The roller that a kind of each characteristic is all good and OA machine that be fit to produce in batches is used can be provided.
In invention, the manufacture method of the roller that such OA machine uses and the roller that the OA machine is used can be provided, wherein, thereby flexibility will be improved, and release property is good, and can prevent rubber layer generation deterioration, even when using cylindric mould, can not adhere to residue on the inner face at cylindric mould simultaneously yet.
Description of drawings
Figure 1A, Figure 1B show is the synoptic diagram of the roller used of the related OA machine of one embodiment of the invention, and Figure 1A is the sectional view of square with the axis direction, and Figure 1B is an oblique view.
Fig. 2 is the oblique view that schematically shows the manufacture method of the roller that the related OA machine of one embodiment of the invention uses.
Herein, the roller that mark 1 expression OA machine is used, mark 2 expression mandrels, mark 3 expression elastic layers, mark 4 expression middle layers, mark 5 expression top layers, mark 5a represents first top layer (skin), and mark 5b represents second top layer (internal layer), the cylindric mould of mark 6 expressions.
Embodiment
Below in conjunction with optimum implementation the present invention is specifically described.But the present invention is not limited to following embodiment.Can in and the scope that be equal to identical, carry out various variations to following embodiment with the present invention.
Based on following Figure 1A, Figure 1B, Fig. 2, embodiment of the present invention are described.
The synoptic diagram of the roller that the OA machine that the manufacture method of the roller that Figure 1A, Figure 1B use for the related OA machine of one embodiment of the invention is made is used, Figure 1A are and the sectional view of the axle vertical direction of roller that Figure 1B is an oblique view.Fig. 2 is the oblique view that schematically shows the manufacture method of the roller that the related OA machine of one embodiment of the invention uses.
Form elastic layer 3, middle layer 4, top layer 5 on the mandrel 2 of the roller 1 that the OA machine is used successively, top layer 5 is by first top layer (skin) 5a and the two-layer formation of second top layer (internal layer) 5b.Roller that the OA machine is used 1 makes by following steps: adopt cylindric mould 6, form each layer according to the order of the first top layer 5a → 5b → middle layer, second top layer 4 → elastic layer 3.Shown in specific as follows.Top layer 5 both can be individual layer, also can be the multilayer of same composition.
(1) will be wherein the total content of surfactant, film intensifier and tackifier be 1.0～5.0 weight % the fluorine resin dispersed liquid coating (for example, flow coat) on the inner peripheral surface of cylindric mould 6, should rotate along the axle center to carry out drying by cylindric mould, (on be limited to 400 ℃) abundant sintering under temperature is high temperature more than the fusing point of fluorine resin forms first top layer (skin) 5a (thickness is the fluoropolymer resin layer of 3 μ m～10 μ m) then.
As surfactant, can be cationic, anionic plasma type surfactant, also can be nonionic (nonionic) surfactant.Described ionic surfactant, specifically can enumerate the anionic surface active agent of carboxyl, sulfonic group or the phosphate etc. that have as hydrophilic radical or have the cationic surfactant of tetraalkyl ammonium as hydrophilic radical etc., described non-ionics can be enumerated high molecular surfactants such as the low-molecular-weight surfactant of APG and so on or polyglycol etc.
(2) then, in order to improve adhesiveness, wetting state, water wettability, the inner peripheral surface of the first top layer 5a is carried out inner face handle (for example plasma treatment).
(3) next, the fluorine resin dispersed liquid coating that surfactant, film intensifier and tackifier is significantly reduced and contain filler (for example, flow coat) on the inner peripheral surface of the first top layer 5a, make its drying, (on be limited to 400 ℃) abundant sintering under temperature is high temperature more than the fusing point of fluorine resin forms second top layer (internal layer) 5b (thickness is the fluoropolymer resin layer of 3 μ m～10 μ m) then.
(4) then, the second top layer 5b is carried out inner face and handle (for example plasma treatment).In addition, if necessary, on the inner face on top layer, form adhesive linkage.
(5) in the situation that forms the middle layer, (for example applying on the inner peripheral surface of the second top layer 5b or on the inner face of adhesive linkage again, flow coat) various functional rubbers make cylindric mould 6 rotations to carry out drying along the axle center, form middle layer 4 (thickness is 50 μ m～150 μ m).
(6) then, mandrel 2 to be inserted in the cavity of cylindric mould with the coaxial mode of cylindric mould, is injected foaming latex then in the gap between middle layer 4 and mandrel 2, (thickness is 1.5～3.5mm) to sulfuration back formation elastic layer 3.
(7) then, the roller 1 that the OA machine is used demoulding from cylindric mould 6.
When top layer 5 forms multilayer, be not limited to above-mentioned two layers, still, outermost layer is preferably the fluoropolymer resin layer that does not contain filler, and in the layer except outermost layer, preferably having one deck at least is the fluoropolymer resin layer that contains filler.In this way, in the multilayer fluorine-contained resin bed that forms the top layer, because outermost layer is not for containing the fluoropolymer resin layer of filler, therefore can guarantee to have better flexibility and release property, and, because in the layer except outermost layer, having one deck at least is the fluoropolymer resin layer that contains filler, so can produce the function that the electric conductivity that makes the top layer, heat conductivity, abrasion performance, intensity etc. are improved.Therefore, can provide and have various excellent characteristic, and can obtain the roller that the OA machine of high image quality is more used.
As filler, metal powders such as Cu, Al, ion salt etc. are for example arranged with electric conductivity; As filler, SiC, TiO are for example arranged with heat conductivity and abrasion performance
2, BN etc.
And, owing between elastic layer 3 and top layer 5, be provided with middle layer 4, so except having above-mentioned effect, can also satisfy various users' the standard that requires.
In the present embodiment, the manufacture method of the roller that the OA machine of making adopting cylindric mould 6 is used and the roller that the OA machine is used are illustrated.But, because the present invention can finish sintering at short notice, so, do not adopt cylindric mould 6, but with the fluorine resin dispersed liquid coating on the surface in rubber layer or middle layer, carry out sintering then, adopt such method also can make the deterioration that can suppress rubber layer and have the roller that the OA machine on thin top layer is used.In addition, the roller used of OA machine of the present invention is suitable as the roller that backer roll, fixing device are used.
Embodiment 1
Below 1 couple of the present invention is specifically described based on embodiment.
(1) formation of top layer (single-layer type)
To contain the PFA of 60 volume % and be less than or equal to the PFA dispersion liquid of the surfactant of 5 weight % more than or equal to 1 weight % that (Du Pont corporate system: EMX-047) being coated to internal diameter is 18mm
, length is on the inner face of stainless steel (SUS) rounding cylindrical die 6 of 257mm, then at room temperature cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the top layer 5 of 8 μ m thereby form thickness on the inner peripheral surface of cylindric mould 6.
(2) on the inner peripheral surface on top layer, form adhesive linkage
Then, after the inner face on top layer 5 carried out plasma treatment, coating (flow coat) silicon rubber bonding agent (East レ ダ ウ Co., Ltd. system on the inner peripheral surface on top layer 5: DY39-051), under 120 ℃ cylindric mould 6 is rotated 15 minutes to carry out drying along the axle center, forming thickness is the following adhesive linkage (not shown) of 1 μ m.
(3) on the surface of mandrel, form adhesive linkage
At diameter 11mm
The surface of iron mandrel 2 on coating silicon rubber with bonding agent (bundle レ ダ ウ Co., Ltd. system: DY39-051), then 120 ℃ dry 15 minutes down, forming thickness is the following adhesive linkage (not shown) of 1 μ m.
(4) formation of elastic layer
(i) be injected in the mould
Next, the mandrel 2 that is formed with adhesive linkage on the surface is inserted in the cavity of cylindric mould 6, injects silicon foaming latex (balloongum) (chemical company of SHIN-ETSU HANTOTAI system: X34-2061-28L) in the gap between top layer 5 and mandrel 2.
(ii) once sulfuration
Be warming up to 160 ℃, keep 15 minutes (comprising the heating-up time), above-mentioned silicon foaming latex (balloon gum) is once vulcanized, forming thickness thus is the elastic layer 3 of 3.5mm.
The (iii) demoulding
After this, with roller 1 demoulding from cylindric mould 6 that the OA machine is used, on the inner face of cylindric mould 6, do not find foreign matter.Form top layer 5 by abundant sintering, and the thickness on top layer 5 is 8 μ m.
(iv) post-cure
After the demoulding, the roller 1 that the OA machine is used is warming up to 250 ℃, keeps 30 minutes (comprising the heating-up time), carries out post-cure.
(5) cut off, finish
Then, will clear up then, and check outward appearance, make the roller 1 that the OA machine is used near the part excision at the two ends of formed each layer.
In the present embodiment, owing to the content of surfactant in the PFA dispersion liquid for being less than or equal to 5 weight % more than or equal to 1 weight %, and do not contain film intensifier and tackifier, so noresidue is adhered on cylindric mould.
Simultaneously, by making thin thickness to the 8 μ m on top layer, and the top layer is not for adding the fluoropolymer resin layer of filler, so have better flexibility, and release property is good, and sintering temperature is to not influence of elastic layer, so can make the roller that deterioration does not take place elastic layer OA machine is used.
When the roller that this OA machine is used is estimated as backer roll, can obtain desired performance, the adhesiveness of each interlayer does not have problems yet.By using this roller, discovery can obtain high image quality, also can satisfy the requirement of colorize and high speed simultaneously, and permanance is also good.
The formation on top layer
(i) formation of first top layer (skin)
To contain the PFA of 60 volume % and be less than or equal to the PFA dispersion liquid of the surfactant of 5 weight % more than or equal to 1 weight % that (Du Pont corporate system: EMX-047) being coated to internal diameter is 18mm
, length is on the inner face of cylindric mould 6 of stainless steel of 257mm, at room temperature cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the first top layer 5a of 6 μ m thereby form thickness on the inner peripheral surface of cylindric mould 6.
The (ii) formation of second top layer (internal layer)
Then, inner face to the first top layer 5a carries out plasma treatment, then with above-mentioned PFA dispersion liquid (Du Pont corporate system: EMX-047) be coated on the inner face of the first top layer 5a, at room temperature cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the second top layer 5b of 6 μ m thereby form thickness on the inner peripheral surface of the first top layer 5a.
In the present embodiment, owing to the content of surfactant in the PFA dispersion liquid for being less than or equal to 5 weight % more than or equal to 1 weight % and not containing film intensifier and tackifier, identical with embodiment 1, on cylindric mould, find no residue and adhere to.
Simultaneously, in the present embodiment, because the thickness on first top layer and second top layer all is as thin as 6 μ m, the gross thickness on top layer was as thin as 12 μ m when the top layer formed multilayer, therefore has good flexibility, and release property is also good, and is not subjected to the influence of sintering temperature, so can produce the roller that deterioration does not take place elastic layer OA machine is used.
In addition, when the roller that the OA machine of manufacturing is used is estimated as backer roll, can obtain desired performance, identical with embodiment 1, by using this roller, discovery can obtain high image quality, also can satisfy simultaneously the requirement of colorize and high speed, and permanance is also good.
Embodiment 3
Embodiment 3 is for to be provided with the middle layer and to give the example of suitable electric conductivity on top layer, middle layer and elastic layer.Specifically, the resin on top layer is electric conductivity PFA, contains carbon in the top layer as filler with electric conductivity, and the silicon rubber that has electric conductivity by use in middle layer and the elastic layer has electric conductivity.Below be specifically described.
(1) formation of top layer (single-layer type)
To contain 60 volume % electric conductivity PFA, account for sintered membrane (top layer) weight 2 weight % as the carbon dust of filler and be less than or equal to the PFA dispersion liquid of the surfactant of 5 weight % more than or equal to 1 weight % (Du Pont corporate system: EMX-054-3) being coated to internal diameter be 12mm
, length is on the inner face of cylindric mould 6 of stainless steel of 257mm, then at room temperature, cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the top layer 5 of 8 μ m thereby form thickness on the inner peripheral surface of cylindric mould 6.
(2) formation in middle layer
Then, inner face to top layer 5 carries out plasma treatment, on the inner peripheral surface on top layer 5, apply (flow coat) electric conductivity one-pack-type silicon rubber (Momentive corporate system: XE16-B7702) then, make rotational circle tubular mould 6 rotate 15 minutes to carry out drying along the axle center under 120 ℃, forming thickness is the middle layer 4 of 4 μ m.
(3) on the mandrel surface, form adhesive linkage
Then, at diameter 6mm
The surface of iron mandrel 2 on coating silicon rubber with bonding agent (East レ ダ ウ Co., Ltd. system: DY39-051), 120 ℃ dry 15 minutes down, forming thickness is the following adhesive linkage (not shown) of 1 μ m.
(4) formation of elastic layer
(i) be injected in the mould
Then, the mandrel 2 that is formed with adhesive linkage on the surface is inserted in the cavity of cylindric mould 6, injects conductivity silicon rubber (chemical company of SHIN-ETSU HANTOTAI system: X34-2869) in the gap between top layer 5 and mandrel 2.
(ii) once sulfuration
Then, be warming up to 160 ℃, keep 15 minutes (comprising the heating-up time), above-mentioned conductivity silicon rubber is once vulcanized, forming thickness thus is the elastic layer 3 of 3mm.
The (iii) demoulding
After this, with roller 1 demoulding from cylindric mould 6 that the OA machine is used, on the inner face of cylindric mould 6, do not find analyte.Form top layer 5 by abundant sintering, and the thickness on top layer 5 is 8 μ m.
(iv) post-cure
After the demoulding, the roller 1 that the OA machine is used is warming up to 250 ℃, keeps 30 minutes (comprising the heating-up time), carries out post-cure.
(5) cut off, finish
Then, will clear up then, and check outward appearance, make the roller 1 that the OA machine is used near the part excision at the two ends of formed each layer.
In the present embodiment, owing to the content of surfactant in the PFA dispersion liquid for being less than or equal to 5 weight % more than or equal to 1 weight %, and do not contain film intensifier and tackifier, thus identical with embodiment 1, can find that noresidue is adhered on cylindric mould.
Simultaneously, has better flexibility and release property is also good and the roller that the OA machine of deterioration is used does not take place elastic layer by making thin thickness to the 8 μ m on top layer, can producing.
In addition, because top layer, middle layer and elastic layer constitute by conductive material, and at formed adhesive linkage on the surface of mandrel is that thickness is that layer as thin as a wafer below the 1 μ m has electric conductivity, therefore can produce the roller that OA machine that all layers all have electric conductivity is used.
When the roller that this OA machine is used is estimated as charging roller, can obtain the charging performance of homogeneous, and, also can satisfy the requirement of colorize and high speed simultaneously, and permanance be also good by using this roller can obtain high image quality.
(1) formation on top layer
(i) formation of first top layer (skin)
To contain the electric conductivity PFA of 60 volume % and be less than or equal to the PFA dispersion liquid of the surfactant of 5 weight % more than or equal to 1 weight % that (Du Pont corporate system: EMX-047) being coated to internal diameter is 14mm
, length is on the inner face of cylindric mould 6 of stainless steel of 257mm, at room temperature cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the first top layer 5a of 6 μ m thereby form thickness on the inner peripheral surface of cylindric mould 6.
The (ii) formation of second top layer (internal layer)
Then, inner face to the first top layer 5a carries out plasma treatment, the electric conductivity PFA that will contain 60 volume % then, and account for the SiC filler of 14.5 volume % of the volume of sintered membrane (second top layer), and PFA dispersion liquid (the Du Pont corporate system: EMX-041-2) be coated on the inner face of the first top layer 5a that is less than or equal to the surfactant of 5 weight % more than or equal to 1 weight %, at room temperature cylindric mould 6 is rotated 10 minutes to carry out drying along the axle center, heating 30 minutes down with abundant sintering at 400 ℃ again, is the second top layer 5b of 6 μ m thereby form thickness on the inner peripheral surface of the first top layer 5a.
(2) formation of elastic layer
Identical with the formation of elastic layer among the embodiment 1, the mandrel 2 that is formed with adhesive linkage on the surface is inserted in the cavity of cylindric mould, inject silicon foaming latex (balloon gum) (chemical company of SHIN-ETSU HANTOTAI system: X34-2061-28L) in the gap between top layer 5 and mandrel 2, be warming up to 160 ℃ then, keep 15 minutes (comprising the heating-up time), once vulcanizing, is the elastic layer 3 of 1.5mm thereby form thickness.
In the present embodiment, owing to the content of surfactant in the PFA dispersion liquid for being less than or equal to 5 weight % more than or equal to 1 weight % and not containing film intensifier and tackifier, therefore identical with embodiment 1, can determine that noresidue is adhered on cylindric mould.
Simultaneously, owing to make the thickness on first top layer and second top layer all be as thin as 6 μ m, therefore and the gross thickness on top layer was as thin as 12 μ m when the top layer formed multilayer, can produce to have the roller that good flexibility and release property is also good, deterioration does not take place elastic layer OA machine are used.
In addition, the top layer forms multilayer, and second top layer is to be made of the fluorine resin that contains the SiC filler that can improve its heat conductivity and abrasion performance, therefore can produce the roller that heat conductivity and the better OA machine of permanance are used.
The example that embodiment 5 is improved for heat conductivity.Specifically, by being set, the middle layer that is made by high heat-conductive silicon rubber improves heat conductivity.Basic identical with the structure of embodiment 4, difference is to be provided with the middle layer.Therefore, the manufacturing process of the roller of using about the OA machine of embodiment 5 is only put down in writing the formation technology in middle layer below.
The formation in middle layer
After the inner face of the second top layer 5b carried out plasma treatment, with high heat-conductive silicon rubber (chemical company of SHIN-ETSU HANTOTAI system: X32-2020) use dilution with toluene, and coating (flow coat) is on the inner peripheral surface of the second top layer 5b, under 120 ℃ cylindric mould 6 is rotated 15 minutes to carry out drying along the axle center, forming thickness is the middle layer 4 of 100 μ m.
In the present embodiment, owing to the content of surfactant in the PFA dispersion liquid for being less than or equal to 5 weight % more than or equal to 1 weight % and not containing film intensifier and tackifier, therefore identical with embodiment 1, can determine that noresidue is adhered on cylindric mould.
Simultaneously, owing to make the thickness on first top layer and second top layer all be as thin as 6 μ m, therefore and the gross thickness on top layer was as thin as 12 μ m when the top layer formed multilayer, can produce to have the roller that good flexibility and release property is also good, deterioration does not take place elastic layer OA machine are used.
In addition, second top layer is to be made of the fluorine resin that contains all good SiC filler of heat conductivity and abrasion performance, and be provided with the middle layer of making by high heat-conductive silicon rubber, therefore can produce the roller that heat conductivity is better and OA machine that permanance is also good is used.
The evaluation result of the roller that the various preparation conditions of above each embodiment that puts down in writing and the OA machine among each embodiment are used is as shown in table 1.
Table 1
In the table 1, "＜1 " is represented below 1.
Claims (8)
1. the manufacture method of the roller used of an office automated machine, manufacture method that it is used for a kind of office automated machine, be formed with the roller on elastic layer and top layer successively on mandrel is characterized in that,
Described top layer is made of the fluorine resin dispersion liquid, and the total content of the surfactant in the described fluorine resin dispersion liquid, film intensifier and tackifier is 1.0～5.0 weight %.
2. the manufacture method of the roller used of the described office automated machine of claim 1 is characterized in that the described film intensifier in the described fluorine resin dispersion liquid and the content of described tackifier are below the 1 weight %.
3. the manufacture method of the roller used of the described office automated machine of claim 2 is characterized in that, is substantially devoid of described film intensifier and tackifier in the described fluorine resin dispersion liquid.
4. the manufacture method of the roller used of the described office automated machine of claim 1 is characterized in that, described fluorine resin is at least a among PFA, PTFE, the FEP.
5. the manufacture method of the roller used of the described office automated machine of claim 1 is characterized in that described top layer is made of the fluoropolymer resin layer of individual layer, and its thickness is 3 μ m～15 μ m.
6. the manufacture method of the roller used of the described office automated machine of claim 1 is characterized in that described top layer is made of multilayer fluorine-contained resin bed, and the thickness of each layer is 3 μ m～15 μ m, and gross thickness is 6 μ m～30 μ m.
7. the manufacture method of the roller used of the described office automated machine of claim 1, it is characterized in that, the described fluorine resin dispersion liquid of coating on the inner face of cylindric mould, form the top layer that constitutes by described fluoropolymer resin layer by sintering, then mandrel is inserted in the cavity of cylindric mould, inject to form material that elastic layer uses afterwards in the gap between described top layer and mandrel to form elastic layer, will on described mandrel, be formed with the roller that the office automated machine on elastic layer and top layer uses and from cylindric mould, extract out.
8. the roller that office automated machine is used is characterized in that, this roller is to adopt the manufacture method of the roller that claim 1 any described office automated machine to the claim 7 uses to make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007336959 | 2007-12-27 | ||
| JP2007336959A JP5464394B2 (en) | 2007-12-27 | 2007-12-27 | OA equipment roller manufacturing method and OA equipment roller |
| JP2007-336959 | 2007-12-27 |
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| CN101470373A true CN101470373A (en) | 2009-07-01 |
| CN101470373B CN101470373B (en) | 2013-02-13 |
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| JP (1) | JP5464394B2 (en) |
| CN (1) | CN101470373B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777734A (en) * | 2015-04-21 | 2015-07-15 | 保定莱盛打印机配件有限公司 | Metal-based fixing film and preparation method thereof |
| CN109624180A (en) * | 2018-12-26 | 2019-04-16 | 平田橡塑五金制品（深圳）有限公司 | A kind of preparation method of composite foamed gum cover and the intake roller of printer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6107534B2 (en) * | 2013-08-22 | 2017-04-05 | 富士ゼロックス株式会社 | Member with fluorine-containing resin layer, fixing device, and image forming apparatus |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3321805B2 (en) * | 1992-08-28 | 2002-09-09 | ダイキン工業株式会社 | Fluorine-containing molten resin aqueous dispersion composition |
| JP3119288B2 (en) * | 1993-10-05 | 2000-12-18 | ダイキン工業株式会社 | Composition capable of imparting conductivity and non-tackiness, paint and roller using the composition |
| JPH07150099A (en) * | 1993-11-26 | 1995-06-13 | Asahi Glass Co Ltd | Coating material |
| JP3822913B2 (en) * | 1997-05-01 | 2006-09-20 | ダイキン工業株式会社 | Non-adhesive composite for office automation equipment |
| JP3833401B2 (en) * | 1998-03-09 | 2006-10-11 | 住友電気工業株式会社 | Method for manufacturing fluororesin-coated roller |
| JP3901380B2 (en) * | 1999-03-17 | 2007-04-04 | 株式会社ブリヂストン | Charging member and charging device |
| JP2003057972A (en) * | 2001-08-21 | 2003-02-28 | Fuji Xerox Co Ltd | Intermediate transfer body and image forming device equipped with the intermediate transfer body |
| JP4094457B2 (en) * | 2003-03-13 | 2008-06-04 | 住友電工ファインポリマー株式会社 | Method for producing fluororesin-coated roller and fluororesin-coated roller |
| JP4882312B2 (en) * | 2005-08-25 | 2012-02-22 | 富士ゼロックス株式会社 | Method for producing fluororesin-coated member |
-
2007
- 2007-12-27 JP JP2007336959A patent/JP5464394B2/en active Active
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2008
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777734A (en) * | 2015-04-21 | 2015-07-15 | 保定莱盛打印机配件有限公司 | Metal-based fixing film and preparation method thereof |
| CN109624180A (en) * | 2018-12-26 | 2019-04-16 | 平田橡塑五金制品（深圳）有限公司 | A kind of preparation method of composite foamed gum cover and the intake roller of printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101470373B (en) | 2013-02-13 |
| JP5464394B2 (en) | 2014-04-09 |
| JP2009154461A (en) | 2009-07-16 |
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