Elastic rotating body and fixing device having said body

[Detailed Description of the Invention]

(Field of the Invention) those with The about the elastic rotating body for which the present invention is used in ' Shigeko photocopy device and the image forming device of printer and others versatility, It is related with the elastic rotating body suitably used as the roller or belt conveyance for sheet-shaped transfer material or record material being conveyed or established especially in the above-mentioned image forming device, or for fixing. The present invention relates to the fixing device which uses this elastic rotating body again. (Prior art and problem) Conventionally, in image forming devices, such as ' electrophotographic copy device, it is required of the conveyance roller which conveys the sheet-shaped transfer material or record material which is used as paper in many cases in accordance with a predetermined course in conveyance nature, a mold-release characteristic, and endurance. It is required of the fixing roller which must convey the decalcomania paper to a predetermined course in the severer conveyance nature of condition Do, a mold-release characteristic, abrasion resistance, fixability, and endurance, giving heat to the undecided A 1 toner image on a decalcomania paper, and A(ing) offset of the fusion toner Prevention 1 especially. In order to satisfy I- and an account demand, conventionally, it provides, an elastic layer is provided in Cored bar, and it is proposed in the elastic rotating body for fixing of the structure which formed the resin layer in the surface further at that of the elastic layer. An elastic layer is made into silicone rubber and this With fixing roller is used in the mixture of a fluoride resin tube or fluoride resin, and fluoride rubber as 84 fat. Such greatest problem of the conventional fixing roller of structure is in the fall of the adhesive strength by durability. That is, exfoliation partial between the elastic layer and resin layer which comprise a rubber layer by prolonged use, or when it carried out raw, and it became usage rate OT ability and was usually used for the fixing assembly of a copy device, it was a fixing of 50,000 sheets, i.e., copy, and use limit from A4 size The l Swords. (One step for solving a problem) The problem of -1-Description is canceled and the object of the present invention is [ endurance or ] Toward 1 by leaps and bounds not to mention the conveyance nature of sheet-shaped articles to be conveyed, such as paper, fixability, and abrasion resistance. - It is providing the elastic rotating body carried out and providing the fixing device using this elastic rotating body further. IJ1 from the sheep has an adhesion layer on an elastic layer for achievement of the above-mentioned object, and it is the thing [ applying a resin material for being alike and calcinating ], The elastic layer mixes particle diameter or the bulking agent of 0.5~15 The end ■ into an elastic layer as elastic rotating body Ah formed in a resin layer on an elastic layer, the bulking agent is distributed independently out of an elastic layer, and it is constituted by what is been a bulking agent in which the bulking agent which has deposited on surface polish of an elastic layer, especially the surface falls out. It is constituted as a fixing device by [ of - which makes the record material which has an unestablished image for the elastic rotating body of account of L 41i Formation pass, and a pair of rotating bodies ] using it for and power at least. especially, it is more effectively [ as the time of being I:Delivery outer layer, those with silicone rubber layer The, 1- and an account bulking agent, or quartz, or a desirable form ] alike, and can attain in two objects. (EXAMPLE) Hereinafter, the elastic rotating body of the example of the present invention is made detailed opinion 1 A 1 based on a 1% of attachment side. the [ Drawing 1 and ] -- 2[A shows - example which embodied the elastic rotating body concerning IJI from the sheep in the electrophotographic copy device on the roller used for the fixing device which carries out heating fixing of the toner image. A fixing device has source H of heating inside usual, and comprises fixing roller l which touches toner image T which is not established [ which Jjl had to decalcomania paper P ], and pressurizing roller 10 which carries out pressurized contact to the fixing roller l so that it may be illustrated in Drawing 1 of an outline. fixing roller 1 and pressurizing roller 10 are considered as the same composition -- each -- core money 2.]2, elastic layer 4.14. adhesion layer 5 and 15, and resin layer 6.I6 is comprised. The skin temperature of fixing roller l is detected to a fixing device, and it is the optimal temperature which can toner fuse the skin temperature, For example, it is provided in the offset Prevention [-liquid application Stage C grade which applies the offset Prevention IE liquid of a silicone oil bamboo hat to Q nail detection control r-stage G for controlling to 160~zoo'c, and the surface of fixing roller l, and also performs cleaning of the surface. Fixing roller l comprises good Mandrel 2 of heat conduction, such as aluminum, elastic layer 4 (layer thickness is carried out in this example, and a 0.3~0.8-m proverb and the rate of rebound resilience of + (refer to the 2nd figure) are 50~85%) formed in silicone rubber on this Mandrel 2, and adhesion layer 5 and resin layer 6 which were formed on the elastic layer 4. Adhesion layer 5 is PFA to heat-resistant resin, such as polyamide, polyimide, and epoxy. (copolymer of 4 fluoridation ethylene resin and perphloro alkoxy ethylene resin) PTFE resin (4 fluoridation ethylene resin) was mixed -- thing Created is carried out and also inorganic bulking agents, such as iron oxide, may be mixed in F2 mixture. As for In the present embodiment, layer thickness t2 (refer to the 2nd figure) of the adhesion layer is made into 1~7 Emperor. Resin layer 6 is created by Fluorine;V resin, such as PFA and PTFE, and, as for 10~25gm and film strength, 1 this example Layer thickness Ll (refer to the 2nd figure) is made into 50-kg/cm2 With. - Or [ that the pressurizing roller 10 is made / in - direction / into the same structure as the above-mentioned fixing roller l speaking of pressurizing roller 10 ], Mandrel 12 is used as Seneless, iron, etc., and Thick of silicone rubber elastic layer 14 and (referring to the 2nd figure) are thicker than the case of a fixing roller, it is referred to as 4~l0mm, and the rate of rebound resilience is made into 50~85%. like fixing roller l, leaving mixes PFA, 11 T F F, and resin to rM heat resin, such as polyamide, polyimide, and epoxy, and adhesion layer 15 is Production(ed) -- the -- layer thickness is carried out and (to refer to the 2nd figure) is made into 1~7 Exclamation. Resin layer 16 uses fluoride resin of PFA and a PTFE bamboo hat like fixing roller l, or layer thickness L6 (refer to the 2nd figure) is made into 5~35g■, and film strength is made into 50kg/c■2, with To. - Account fixing roller [ of)- ] l and pressurizing roller lO are;F of the direction of an axis! To Central position, it is supposed that it is symmetrical and fixing roller 10 (or pressurizing roller 10) is preferably considered as what is called a reverse crown type slightly made into the byway as compared with the direction central part of an axis, or both ends. According to this example, in F2 fixing-roller l and pressurizing roller 10, it has elastic layers 4 and 14, adhesion layers 5 and 15, and resin layers 6 and 16, and elastic layers 4 and 14 are mixed in the silicone rubber in particle diameter or quartz as a bulking agent of 0.5~15pm as mentioned above using silicone rubber. When this elastic layer is set like manufacture [and the surface is ground, the account bulking agent of 1F which has deposited on the surface falls out. By using such silicone rubber as an elastic layer, they are fixability, endurance, and model nature 1 - It can do [ manufacturing the part-satisfied roller for fixing or ]. - That of Sexual moat exertion Be able to which was excellent in especially the above-mentioned composition as a roller for fixing is effective when it is the standard deviation of the number particle size distribution, or 5 gm or less using quartz of particle diameter or a 0.5~15-animal garden. The basis of the numerical value of the present invention is explained based on the comparative example of 1 versatility below. The 1st table mixes the quartz which has various particle diameter and particle size distribution in silicone rubber which is an elastic layer, After a vulcanization Jj2. type's carrying out rubber, fluoride resin (example The is PTFE dysversion) is applied to the surface, It is the table in which beyond the crystalline melting point (327degreeC) changed the high temperature of 2 to the fluoride resin mentioned below and which summarized into the rubber layer of F layer the endurance of the roller for fixing calcinated by the calcinating method maintained to low-temperature Do (below 260 degreeC) of rubber or the grade which does not carry out heat deterioration, fixability, and a mold-release characteristic. About the account [ of l2 ] calcinating method, indicating [ the details ]-to Japanese Patent Application No. No. 2:14780 [ 59 to ] by this applicant Explanation omits. When explained in more detail about the 1st table, j A mother of quartz expressed Arriving how many copies they were in pi star, to 100 copies of crude rubber, and fixability was measured under the conditions which print the decalcomania paper of the Tsubosuke [J dish business standard A4 size of 80g of environmental Do of 10 degreeC / ■2 by 38-sheet/with 200-1/sec speed. At this time, a fixing rate is following method I got it. The solid black spot type picture of diameter 24-1 is formed. It is Ri about the image concentration. the nonwoven fabric (■ -- purchase -- five -- A -- Construction -- a brand name -- Beaver -- a rag -- : -- Dish --; -- it has a rough side of softness like L vapor, and Mr. tree [1, and 32±3% of the rate of crepe, A goods item:35±3g/■2, a 0.4 kg anti-halberd (Vertically)/15 mm, with I- are shown.) which closes and is called Kosin Wyver in the picture When image concentration after lO round trip Rubbed is made into Ri, applying the load of disposable type wiping paper The 40 g/cs2 of thickness about 2004 ta, it is fixing rate = (D+/Do) X 100! To be determined. Density and Do are Macbeth reflective densimeter Numerical values measured, and Do is taken as image concentration or the thing within the limits by which image concentration adjustment was carried out so that it might be set to 1.0 <=Do<=1.1. nA= Carrying-out [ a mold-release characteristic prints whole surface solid black on the same condition Transfer material as the above, carries out 100 sheet continuation passage of sheets of it, feed a blank paper after that and ]-dirt state of blank paper Done. 10-min width 5 A part lends fluoride resin, the adhesive strength of a fluoride resin layer and a rubber layer does 90 friction tests on the portion at the Hold the tension gauge peripheral direction of a 100~300g full scale, and the tension gauge at that time directs it -- By value representation was carried out. At this time, the skin temperature of fixing Kawaguchi-La was maintained to 200 degreeC, and delta regularity of it was done. Next, when the result of the 1st table is explained, law 1 and a sex are understood [ that it is dependent on Hard 1■ of a rubber layer, or ] to be the heat object and the rate of q of a rubber layer. especially -- the dependence of the thermal conductivity of a rubber layer -- high -- [-- in order to acquire part fixability, from the 1st table, it takes one in a thing required [ more than 0.7X 1010-3cal-/scc-cm2"C ]. Heat conduction (it understands [ What, low-Do(ing) in the hardness of a rubber layer, or Hard V To wish and fixability (72 degrees, with A), even if good, and low-Do(ing) in a mold-release characteristic, or ].) Does thermal conductivity become high, so that there is much this thermal conductivity in quartz depending on 171 of quartz? Rubber hardness also becomes the Saki. In order to gather [ Did it carry out? ] thermal conductivity from the 1st table and not to make rubber hardness high [ To H ] for a necessary quantity. It understands [ existence of quartz between 0.5~15micro■, that it is l A, or ]. About endurance, it depends greatly in Contact 11 power. That is, from the 1st table, it has the endurance of adhesive strength, the thing of 120-g/l0Ia■ Conduction [-, 200,000 sheets, with !-, and has the endurance of 300,000 sheets, with A in 150g / 10wm width, with the thing of t. About this adhesive strength, it becomes remarkable in the effect that the effect of quartz of the particle diameter of existence of an adhesion layer, (), and 5~15 Rush or providing [ it is large, and, and / sharply / as part IIi L / ing thing ]-in that particle size distribution-adhesion layer Adhesion becomes good. [ quantity / of the quartz ] When 91 lots are being made the particle size distribution of account quartz of 1-, or float, in order to show standard deviation, or roller No which is carrying out the right [ of the sharp distribution of 3 Level F ], and II and quantum adhesive strength, for example, as it roller-No(es) and I:l Shows was carried out, the elegance of abbreviation IO section quartz must be increased. At this time, -V of quartz of the size of ■ for 0.5~15, or since it is too large, it low-Do in physical-properties values, such as tensile strength of a rubber layer, and Tearing intensity, and as adhesive strength, it is good, or has deleted in rubber by Separation claw in the middle of durable. The of distribution of standard deviation of 10 Le garden is also understood [ standard deviation, having adhesiveness equivalent to a thing without an adhesion layer by distribution of a three bowl pile, or ] by providing an adhesion layer so that it may understand, if the particle size distribution or float The of quartz also compares roller No, 10 and roller No, and 11. as a result, the quantity of quartz of the size of providing an adhesion layer and 0.5~15 SLm -- many -- that particle size distribution -- sharp -- part 1tj L / ing -- things -- both -- adhesiveness -- 'H' -- it understands [ carrying out or ]. the increase in Contact force becomes very remarkable by being alike and suiting in account conditions or two A tax. For example, even if it provides an adhesion layer in quartz of 0.5~15pL11, roller No which does not exist, l and roller No, and 3 (roller No, 2 and roller No-4), the increase in the adhesive strength is 10% or less. - The increase in the adhesive strength of part 4j L-ing roller No, ll, roller No, and 15 The is about 30% at quartz of power and 0.5~15 g-, or Si V-The. This shows that 11Q Keep it. does not carry out raw [ of the adhesion layer ] to 11 in associative strength strong between the rubber surface and an adhesion layer on vulcanization 1& and the rubber roller which carried out the model, either. With, in order to carry out Towards of the fixability, endurance, and the Edge shape as Rika et al. and a fixing roller (phrase'p carry out the existence of quartz or thick To of particle diameter of 1 and 5~Is gl.), And in order to satisfy account of 1- 3 important-point Chi E, it understands in the size of the particle diameter of quartz, the shape of particle size distribution 7E, or an important thing. And the effect of providing-in such roller-adhesion layer Endurance disposition A becomes remarkable. That is, it is the thermal conductivity with great influence in fixability and endurance by increasing the state of quartz, When it becomes increasing-adhesive strength power <+jf ability or 0.5 micrometer or more of small quartz is mixed in many H and B-, for example, the degree of slippage - to adhesive strength increase has very little rubber strength Iff so that it may increase or he may understand rubber elasticity or a fault, such as being spoiled, from the result of right 1 and also the 1st table. It is [ that Gob t make comparatively big () of one particle diameter, and quartz between 5~154a increase of Contact ri power and heat conductive Rate by increasing quantity, or quartz of the above-mentioned particle diameter, on the other hand, increases the intermolecular association power of a rubber layer and ] Gob! It does not F Carry out but is scattering by letter of the Mostly independence between rubber layers y8 The. Therefore, if too large, it will be spoiled [ amount / of account quartz of A ] in physical properties, such as tensile strength of a rubber layer, Tearing intensity, and growth. That is, for increase of adhesive strength, it is [ arranging with ?i one grain distribution of the quartz which increases jl Knee of quartz and which does not excel and carries out the right / of the particle diameter between 0.5~15gm / especially, or ] in an effect so that I may be understood from the 1st table. With, in order to satisfy fixability sufficient as a roller for fixing, endurance, and a mold-release characteristic to the field from the result of A, In order to distribute quartz of the particle diameter of 0.5~l5fiLII in a rubber layer and to carry out Towards of providing an adhesion layer and also the ml Kumi, it is [ standard deviation / of the particle size distribution of account quartz of l- ] more desirable in To be and specifically using five or less roux few than the result of the 1st table. Next, by distributing comparatively big quartz of particle diameter in a rubber layer, and arranging a particle size explains adhesive strength or the increasing reason into a pipe. the big quartz of particle diameter which has deposited on the rubber layer surface -- above -- associative strength with rubber -- since she is delicate, Without falls from the surface at the time of polish -- 1 -- it is considered a big reason according to being formed in four copies or the surface of an alff size. furthermore -- if the size of four copies is a resin material in About that with the size of 0.5. Ken, for example, an adhesion layer, or the dysversion of PTFE -- a part for 1- unevenness on those with four-copy The which can flow in into it, and the surface of rubber is followed, and it becomes adhesion of fluoride resin or one-dish ability. It deposits on the rubber layer surface, and at the time of polish, Support makes Chemical bonding state between quartz or adhesion layers without Fall, forces it it one, induces Contact no power, and is carrying out the right [ of the Tada effect ]. The size of the four above-mentioned copies, or since Mature huffing of the rubber layer of a Do layer distributes uniformly in the stress to Fluorine and V resin layer at the time of heating so that it has gathered uniformly, if it sees as whole << to carry out raw in the weak place of adhesive strength partially, it will be thought that firmer adhesive strength is shown. In addition, as an effect of an adhesion layer, it fuses with PFA in an adhesion layer, PFA of PTFE resin or the surface, or PTFE resin, and suits and joins together, Resin, such as poly friend 1in adhesion layer~ and polyimide, serves as [ acquiring far strong adhesive strength or ] Scum rather than are needed for fluoride resin or rubber surface unevenness and being crowded, since it is needed for the above-mentioned uneven part of a rubber layer, and it is crowded, and it is large compared with the surface energy or fluoride resin. Next, other examples of the present invention are described. Heating roller l has elastic layer 4 formed in silicone rubber of 0.5-mm thickness, and is heat-resistant resin and PFA(s), such as polyamide, polyimide, and epoxy, in the fluorocarbon rubber of the water solubility [ top / the / elastic layer 4- ] as adhesion layer 5. Layer thickness L2 of this example Am could be 5~15 micrometers using fluoride resin, such as PTFE, or the mixed thing. As for resin layer 6, fluoride resin Created of PFA, PTFl', etc. is carried out, this example Layer thickness [3 is made into a 7~20w layer, and film strength is made into 50 kg/cm2, with [-. As used in this example silicone rubber turned with roller No which Shows(ed) table 1, and 11.+2, and used the thing. As a result, adhesive strength was not different from roller No and 12 at 170 g, and did not have endurance in passage-of-sheets A problem of 30% sheet With, either. that in which The which provided the adhesion layer on the elastic layer in Table 1 does not have an adhesion layer -- fixability or Youthf -- it is getting worse or roller No, lI and roller No, and In comparison of 12 are worse in 3% fixability than in roller No with an adhesion layer, roller No without that of 12, or an adhesion layer, and ll. This example showed fixability or the fixability of 85%, a thing without an adhesion layer, and the Should. Thus, acquiring-the same outstanding fixability as using-as adhesion layer-what mixed resin material into rubber material Outstanding endurance, mold-release characteristic and adhesion layer, or time of there being nothing food To cut off. this -- an adhesion layer -- width -- unlike a resin material, it thinks for according to the effect which has elasticity to some extent. the system using such an adhesion layer -- the effect of The also using quartz of a grain system of 0.5~15 bowls - as a bulking agent into silicone rubber is completely the same as the above-mentioned example. with, A theory IJIL and It was -- since In the present invention has the composition of having firm adhesive strength between a fluoride resin layer and a rubber layer, and also having adhesive strength sufficient also at the time of high temperature heating actually used as a fixing roller, like, gI type nature and keying strength which were made [ bearing enough the passage-of-sheets durability of a 30% sheet, with 1- or ], and also were excellent also by the passage-of-sheets durability of 40% sheet With are maintained, and it does not carry out raw [ of the exfoliation of a fluoride resin layer ]. moreover -- the case where silicone rubber is used as a rubber layer -- as rubber hardness -- 3 (carry out 1 nail implement and desirable in an 80-degree nail implement -- growth, 150% with those with -E The, and 100% growth stress Power MoonOkg/cm2, with those with l] The -- it becomes [ carrying out the right / of sufficient rubber elasticity /, or ] Cheap conditions.) It is especially a rate of rebound resilience of a rubber layer (when IJJ from the sheep is used for a fixing roller etc., it is hard to carry out raw in 50~85%, II (better There), or the phenomenon of [ if small ] the increase in adhesive strength at the time of high temperature.). For this reason, as mentioned above, it is desirable in calcinating a fluoride resin layer, without heating a rubber layer. As for the present invention, it is also Be able to (for example, Bert Nakama of 11 transfer simultaneous constant rivers) to also use for a cleaning roller and roller"9 for release agent supply other than the account example of L and to consider it as Enemy and the shape of a belt. especially -- as a resin layer -- Fluorine (since female-die nature and elasticity are prepared for the case where J resin is used -- transfer nature -- wearing and having Lee 2 An nature as a cleaning roller however --), Demonstrating [ each In use ]-advantage by 1 elasticity which cleans The, such as surface Energy key ranking, which learned and was excellent in Prevention II, -, L and abrasion resistance in uniform application [ of a release agent ], and Translate ' To ' nonuniformity according to effect food To cut off. It can do in the thing which were used as book 151 and for which fluoride rubber, F, P D M, etc. will be used depending on a use out of silicone rubber as an elastic layer if it buys, and can use silicone resin etc. out of fluoride resin also as a resin layer. It is application Be able to to a pressure fixing device which showed the example of the heating fixing device in l 2-pair-of-shoes figure 1, or carries out pressure fixing of the Under pressure 1 Henner image with the light present invention as one example of the desirable use of the elastic rotating body of the present invention, pressure fixing devices, such as transfer simultaneous fixing, etc. considering [ in the above-mentioned example, had Laura Futamoto composition, or ]-as fixing device of - Laura Futamoto or number of rollers beyond it Kaki and also the present invention are embodied on various heating roller, pressurizing roller, release agent feed roller, cleaning roller, and other belt-like rollers of a device, and are 1 town To. (EFFECT OF THE INVENTION) Since the elastic rotating body concerning the present invention is constituted as mentioned above, there is in endurance or the effect of improving by leaps and bounds, not to mention the conveyance nature of sheet-shaped articles to be conveyed, such as paper, fixability, and abrasion resistance. Furthermore, according to d For example and the present invention, it can do [ carrying out maintaining the adhesion intensity of an elastic layer and a resin layer, or the fixing effect and female-die nature which it increased, and it was remarkable in especially heating condition Do, and the general Carrying could attain conveyance of 500,000 sheets reasonable, and were excellent in fixing processing of 300,000 sheet With also as a rotating body for fixing, or ]. When the present invention is applied to a fixing device. yearning after Loaf-proof JL1 surface a type nature, and demonstrating enough the surface property of a resin layer, and the elastic characteristic of rubber -- a toner image and other rollers -- it learns, excels also in an effect and becomes very long in a life. According to the fixing device of these 51 Ming, it is. If l-Divergence rotating body is applied to the roller (a belt is included) of at least 1 side which compresses record material, curl generating of record material is A(ed) Prevention 1, and it is a fixing picture! TIJJ The and constant 11 nature, or the effect that it is good is maintainable over a long period of time conventionally. And power is lessened at reducing [ thermal motion + and a good temperature required for fixing of fixing ] (like 20degreeC) Consumption', and a device with little electric power distribution can also attain high-speed fixing record.

[Brief Description of the Drawings]

The 11th m is section of one example of fixing device 1''A which has the elastic rotating body and it concerning 11 from the sheep. The 21st M is partial expansion theory 1 of the fixing roller of the 1st IA! It is 1 figure. 1 ............ Fixing roller 4.14 ...... Elastic layer 5.15 of silicone rubber ...... Adhesion layer 6.16 ...... Fluoride resin layer applicant for a patent A canon incorporated company incorporated company eye, varnish, tee