JPH0715606B2 - Oil application roll - Google Patents
Oil application rollInfo
- Publication number
- JPH0715606B2 JPH0715606B2 JP6790486A JP6790486A JPH0715606B2 JP H0715606 B2 JPH0715606 B2 JP H0715606B2 JP 6790486 A JP6790486 A JP 6790486A JP 6790486 A JP6790486 A JP 6790486A JP H0715606 B2 JPH0715606 B2 JP H0715606B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- oil
- weight
- parts
- silicone rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006260 foam Substances 0.000 claims description 27
- 229920002379 silicone rubber Polymers 0.000 claims description 23
- 239000004945 silicone rubber Substances 0.000 claims description 23
- 239000011247 coating layer Substances 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 125000000962 organic group Chemical group 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 239000003921 oil Substances 0.000 description 17
- 229920002545 silicone oil Polymers 0.000 description 14
- 239000000377 silicon dioxide Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229920001971 elastomer Polymers 0.000 description 8
- 239000000945 filler Substances 0.000 description 8
- 239000005060 rubber Substances 0.000 description 8
- -1 polysiloxane Polymers 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 230000008961 swelling Effects 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- HGTUJZTUQFXBIH-UHFFFAOYSA-N (2,3-dimethyl-3-phenylbutan-2-yl)benzene Chemical group C=1C=CC=CC=1C(C)(C)C(C)(C)C1=CC=CC=C1 HGTUJZTUQFXBIH-UHFFFAOYSA-N 0.000 description 1
- WRXCBRHBHGNNQA-UHFFFAOYSA-N (2,4-dichlorobenzoyl) 2,4-dichlorobenzenecarboperoxoate Chemical compound ClC1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1Cl WRXCBRHBHGNNQA-UHFFFAOYSA-N 0.000 description 1
- CQSQUYVFNGIECQ-UHFFFAOYSA-N 1-n,4-n-dimethyl-1-n,4-n-dinitrosobenzene-1,4-dicarboxamide Chemical compound O=NN(C)C(=O)C1=CC=C(C(=O)N(C)N=O)C=C1 CQSQUYVFNGIECQ-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical group C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 description 1
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical group CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、電子写真複写機、電子プリンター等における
熱定着装置にオフセット防止液としてシリコーンオイル
を塗布するオイル塗布ロールに関する。TECHNICAL FIELD The present invention relates to an oil application roll for applying silicone oil as an offset preventing liquid to a heat fixing device in an electrophotographic copying machine, an electronic printer or the like.
［従来の技術とその問題点］ 従来、電子写真複写機等の未定着画像の定着方法として
加熱定着方式が採用されている。この加熱定着装置は、
未定着画像を定着するための加熱定着ロール（ヒートロ
ール）とこれに圧接する加圧ロール（プレスロール）が
使用され、互いに一定荷重が加えられて未定着画像を定
着している。[Prior Art and its Problems] Conventionally, a heat fixing method has been adopted as a fixing method for an unfixed image in an electrophotographic copying machine or the like. This heat fixing device
A heat fixing roll (heat roll) for fixing an unfixed image and a pressure roll (press roll) press-contacting the heat fixing roll are used, and a constant load is applied to each other to fix the unfixed image.
このような加熱定着ロールと加圧ロールの表面層として
は、テフロン樹脂，フッ素ゴム，シリコーンゴム等の離
型性にすぐれた材料を使用して未定着画像を形成する熱
可塑性粉末（トナー）のロール表面への付着を防止して
いる。しかし、完全に付着を防止することは困難である
ため両ロールの少なくとも一方にオフセット防止液とし
て一般にはシリコーンオイルが塗布されている。As a surface layer of such a heat fixing roll and a pressure roll, a thermoplastic powder (toner) for forming an unfixed image is formed by using a material having an excellent releasing property such as Teflon resin, fluororubber, and silicone rubber. Prevents adhesion to the roll surface. However, since it is difficult to completely prevent the adhesion, at least one of both rolls is generally coated with silicone oil as an offset preventing liquid.
このシリコーンオイルの供給方法として各種方法が採用
されている。例えば加圧ロールの下部分にシルコーンオ
イル槽を設けて、シリコーンゴム発泡体ロールを使って
加圧ロールにシリコーンオイルを塗布する方法、また、
徐々に動くシリコーンオイル含浸不織布をシリコーンゴ
ム発泡体ロールで加熱定着ロールに密着させながら不織
布中のシリコーンオイルとシリコーンゴム発泡体中のシ
リコーンオイルを加熱定着ロールに塗布する方法などが
ある。Various methods have been adopted as a method of supplying this silicone oil. For example, a method of applying a silicone oil to the pressure roll using a silicone rubber foam roll by providing a silicone oil bath under the pressure roll,
There is a method in which the silicone oil in the nonwoven fabric and the silicone oil in the silicone rubber foam are applied to the heating and fixing roll while the gradually moving silicone oil-impregnated nonwoven fabric is brought into close contact with the heating and fixing roll with the silicone rubber foam roll.
以上２つの例にみられるように、オイル塗布ロールとし
てシリコーンゴム発泡体を使用した熱定着装置が数種あ
る。而して、このシリコーンゴム発泡体は、従来、ジメ
チルポリシロキサンやメチルビニルポリシロキサンをベ
ースにして形成されており、耐熱性・離型性・圧縮復元
性などの特徴を有効に生かして活用されている。しか
し、ポリシロキサンをベースとするシリコーンゴム発泡
体をオイル塗布ロールとして使用した場合、次のような
欠点が指摘されている。即ち、その１つは、シリコーン
ゴム発泡層が使用中にシリコーンオイルにより膨潤し、
寸法変化を生じて安定したニップ幅を維持できないこ
と、その２つにシリコーンオイルによる膨潤のためにゴ
ム発泡体の強度が低下して、発泡体の表面の摩耗が大き
いことがある。従ってジメチルポリシロキサンやメチル
ビニルポリシロキサンをベースとするシリコーンゴム発
泡体を被膜層とするオイル塗布ロールでは、十分に満足
のできる耐久性を発揮できなかった。As seen in the above two examples, there are several types of heat fixing devices using a silicone rubber foam as an oil application roll. Thus, this silicone rubber foam is conventionally formed based on dimethylpolysiloxane or methylvinylpolysiloxane, and is utilized by effectively utilizing the characteristics such as heat resistance, releasability, and compression recovery. ing. However, the following drawbacks have been pointed out when a silicone rubber foam based on polysiloxane is used as an oil coating roll. That is, one of them is that the silicone rubber foam layer swells with silicone oil during use,
There is a case where a dimensional change occurs and a stable nip width cannot be maintained, and two reasons are that the strength of the rubber foam is lowered due to the swelling by the silicone oil and the surface of the foam is largely worn. Therefore, an oil-coated roll having a silicone rubber foam based on dimethylpolysiloxane or methylvinylpolysiloxane as a coating layer could not exhibit sufficiently satisfactory durability.
本発明は、かかる点に鑑みてさなれたものでありオイル
塗布ロールの被覆層として全有機の３〜50モル％がフェ
ニル基であるジオルガノポリシロキサンをベースとする
シリコーンゴム発泡体をオイル塗布ロールの被膜層とし
て使用することにより、シリコーンオイルによる膨潤が
小さいために寸法安定性にすぐれ、また、膨潤によるシ
リコーンゴム発泡体の強度低下が小さいために、ロール
表面発泡体の摩耗の少ない、オイル塗布ロールを提供す
るものである。The present invention has been made in view of the above points, and a silicone rubber foam based on a diorganopolysiloxane in which 3 to 50 mol% of all organic groups are phenyl groups is oil-coated as a coating layer of an oil coating roll. When used as a coating layer for a roll, the swelling due to the silicone oil is small, so that the dimensional stability is excellent, and because the strength reduction of the silicone rubber foam due to the swelling is small, the abrasion of the foam on the roll surface is small, A coating roll is provided.
［問題点を解決するための手段］ 本発明は、ロールの芯金上に被覆層して全有機基の３〜
50モル％がフェニル基であるジオルガノポリシロキサン
をベースとするシリコーンゴム発泡体を形成してなるオ
イル塗布ロールである。[Means for Solving Problems] In the present invention, a coating layer is formed on a core metal of a roll, and the total number of organic groups of 3 to
An oil-coated roll formed by forming a silicone rubber foam based on a diorganopolysiloxane in which 50 mol% is a phenyl group.
ここで、被膜層は、接着剤により芯金に接着させるもの
であるが、必要により被膜層と芯金との間に他の材質の
中間層を介在させることもできる。また、本発明のオイ
ル塗布ロールは、熱定着装置内の使用の初期におけるオ
フセット防止液の塗布を目的としてシリコーンオイルを
含浸させることが好ましい。Here, the coating layer is adhered to the core metal with an adhesive, but an intermediate layer made of another material may be interposed between the coating layer and the core metal if necessary. Further, the oil coating roll of the present invention is preferably impregnated with silicone oil for the purpose of coating the offset prevention liquid at the initial stage of use in the heat fixing device.
また、本発明オイル塗布ロールの被膜層を形成する全有
機基の３〜50モル％がフェニル基であるジオルガノポリ
シロキサンをベースとするシリコーンゴム発泡体として
は、 （イ）平均組成式 で示されるジオルガノシロキサン 100重量部 （ロ）比表面積が50m2/g以上であるシリカ系充填剤10〜
60重量部 （ハ）平均組成式 で示されるシラン又は重合度が50以下のオルガノポリシ
ロキサン ０〜30重量部 （ニ）硬化触媒 0.01〜５重量部 （ホ）有機発泡剤 １〜20重量部 からなる組成物を加熱発泡させることにより得られるも
のである。Further, as the silicone rubber foam based on diorganopolysiloxane in which 3 to 50 mol% of all the organic groups forming the coating layer of the oil coating roll of the present invention are phenyl groups, (a) average composition formula 100 parts by weight of diorganosiloxane represented by (b) Silica-based filler having a specific surface area of 50 m 2 / g or more 10 to
60 parts by weight (c) Average composition formula Silane or organopolysiloxane having a degree of polymerization of 50 or less 0 to 30 parts by weight (d) curing catalyst 0.01 to 5 parts by weight (e) organic blowing agent 1 to 20 parts by heating Is what you get.
このシリコーンゴムＡにつき更に詳述すると、 （イ）の成分は、 で示される鎖状ポリシロキサンで、この場合ｍは全有機
基の３〜50モル％、好ましくは３〜30モル％がフェニル
基になるように決められる。また、ｎは必ずしも必要と
しない（ｎ＝０であってもよい）が、ビニル基が全有機
基の0.02〜３モル％、特に0.1〜0.5モル％になるように
決められることが好ましい。更に、このシロキサンの重
合度は25℃の粘度が1000〜10000000C.Sであるものが好
ましく、液状物として加工する場合には1000〜100000C.
S、固形ゴムとして加工する場合には3000000C.S以上と
するのがよい。The silicone rubber A will be described in more detail. The component (a) is In the chain polysiloxane represented by the formula (3), m is determined so that 3 to 50 mol%, preferably 3 to 30 mol% of all organic groups are phenyl groups. Further, n is not always necessary (n = 0 may be used), but it is preferable that the vinyl group is determined so as to be 0.02 to 3 mol%, particularly 0.1 to 0.5 mol% of all the organic groups. Furthermore, the degree of polymerization of this siloxane is preferably such that the viscosity at 25 ° C. is 1000 to 100000000 C.S, and when processed as a liquid, 1000 to 100000 C.
S, 3,000,000 C.S or more is preferable when processing as solid rubber.
（ロ）のシリカ系充填剤は、シリコーンゴムの補強のた
めに使用されるもので、このシリカ系充填剤は比表面積
が少なくとも50m2/gである微粒子状のものとする必要が
ある。このシリカ系充填剤としてはヒュームドシリカと
呼ばれている乾式法シリカ、沈降性シリカと言われてい
る湿式法シリカのいずれでもよく、これらはまたその表
面のけい素原子に結合した水酸基をトリメチルシリル化
したもの、その表面を低重合度ジメチルポリシロキサン
で疏水化処理したもの、さらにはこれらにチタンやアル
ミニウムなどの他の金属の酸化物を副成分として含有さ
せたものであってもよい。このシリカ系充填剤の配合量
は、（イ）の成分100重量部に対して10〜60重量部、よ
り好ましくは20〜50重量部である。The silica-based filler (b) is used for reinforcing the silicone rubber, and the silica-based filler needs to be in the form of fine particles having a specific surface area of at least 50 m 2 / g. The silica-based filler may be either dry-process silica called fumed silica or wet-process silica called precipitating silica, which also has a hydroxyl group bonded to a silicon atom on its surface with trimethylsilyl. It may be converted into a compound, a surface of which is hydrophobized with dimethylpolysiloxane having a low degree of polymerization, or a compound containing an oxide of another metal such as titanium or aluminum as an auxiliary component. The amount of the silica-based filler compounded is 10 to 60 parts by weight, more preferably 20 to 50 parts by weight, based on 100 parts by weight of the component (a).
（ハ）の成分は、（ロ）のシリカ系充填剤の分散性を向
上させるために用いられるもので、上述した組成式で示
されるものであり、分子中に少なくとも１個のシラノー
ル基又はハロゲンを除く加水分解基を有するシラン或い
は低分子（重合度50以下）シロキサン類である。この
（ハ）の成分としては、具体的には低重合度の末端シラ
ノール封鎖ジオルガノポリシロキサン，ジフェニルシラ
ンジオール，ジメチルジエトキシシラン等が例示され
る。（ハ）の成分の添加量は（イ）の成分100重量部に
対して０〜30重量部であるが、一般には１〜30重量部、
特に２〜10重量部とすることが望ましく、前記シリカ系
充填剤の種類や配合量に応じて適宜な添加量が選択され
得る。The component (c) is used to improve the dispersibility of the silica-based filler (b) and is represented by the above-mentioned composition formula, and has at least one silanol group or halogen in the molecule. It is a silane or a low-molecular-weight (polymerization degree of 50 or less) siloxane having a hydrolyzable group other than. Specific examples of the component (c) include low-polymerization degree silanol-capped diorganopolysiloxane having a terminal silanol, diphenylsilanediol, and dimethyldiethoxysilane. The addition amount of the component (c) is 0 to 30 parts by weight with respect to 100 parts by weight of the component (a), but generally 1 to 30 parts by weight,
It is particularly preferable that the amount is 2 to 10 parts by weight, and an appropriate addition amount can be selected depending on the type and blending amount of the silica-based filler.
（ニ）の硬化触媒は、有機過酸化物が代表的なもので公
知の有機過酸化物、例えば、ベンゾイルパーオキサイ
ド，ビス2,4−ジクロロベンゾイルパーオキサイド，ジ
ターシヤリーブチルパーオキサイド，ジクミルパーオキ
サイドなど全てのものが使用可能で、場合によりこれら
の加硫剤を２種以上使用することも差支えない。なお、
硬化触媒の使用量は（イ）の成分100重量部に対して0.0
1〜５重量部、望ましくは0.1〜３重量部程度である。The curing catalyst of (d) is a typical organic peroxide, and known organic peroxides such as benzoyl peroxide, bis 2,4-dichlorobenzoyl peroxide, ditertiary butyl peroxide, dicumyl. All such as peroxides can be used, and it is also possible to use two or more of these vulcanizing agents depending on the case. In addition,
The amount of the curing catalyst used is 0.0 with respect to 100 parts by weight of the component (a).
It is 1 to 5 parts by weight, preferably about 0.1 to 3 parts by weight.
（ホ）の成分としての有機発泡剤は通常シリコーンゴム
スポンジの発泡剤として使用されている種々のもので、
例えばアゾビスイソブチルニトリル，ジニトロソペンタ
メチレンテトラミン，ベンゼンスルホニルヒドラジド,
N,N′−ジニトロソ−N,N′−ジメチルテレフタルアミ
ド,4,4′−オキシビス（ベンゼンスルホニルシドラジ
ド）などがあり、場合によりこれらの有機発泡剤を２種
以上使用することも差支えない。なお有機発泡剤の使用
量は（イ）の成分100重量部に対して、１〜20重量部の
範囲とされる。これはその使用量が１重量部未満では十
分にう泡した発泡体が得られず、また、30重量部を超え
ると発泡体はもろくなり、残存する分解生成物のために
耐熱性も低下するからである。The organic foaming agent as a component of (e) is various kinds which are usually used as a foaming agent of silicone rubber sponge,
For example, azobisisobutylnitrile, dinitrosopentamethylenetetramine, benzenesulfonylhydrazide,
There are N, N'-dinitroso-N, N'-dimethylterephthalamide, 4,4'-oxybis (benzenesulfonyl hydrazide) and the like, and it is possible to use two or more of these organic foaming agents depending on the case. The amount of the organic foaming agent used is in the range of 1 to 20 parts by weight with respect to 100 parts by weight of the component (a). If the amount used is less than 1 part by weight, a sufficiently foamed foam cannot be obtained, and if it exceeds 30 parts by weight, the foam becomes brittle and the heat resistance decreases due to the remaining decomposition products. Because.
なお、前記（イ）のジオルガノポリシロキサンは公知の
方法で得ることができる。The above-mentioned (a) diorganopolysiloxane can be obtained by a known method.
また、発泡前のシリコーンゴム組成物には、上記成分以
外に、珪藻土，石英粉，クレー，炭酸カルシウム，酸化
チタンなどの増量用充填剤をはじめ、接着向上剤、耐熱
添加剤，酸化防止剤，着色剤などの成分を添加すること
もできる。In addition to the above-mentioned components, the silicone rubber composition before foaming includes fillers for increasing the amount of diatomaceous earth, quartz powder, clay, calcium carbonate, titanium oxide, etc., adhesion improvers, heat resistance additives, antioxidants, Ingredients such as colorants can also be added.
このようなシリコーンゴム発泡体を被膜層とするオイル
塗布ロールを製造する方法は、公知の方法で行なわれ
る。例えば、洗浄，脱脂された芯金型の外周面に接着剤
を塗布して、原料シリコーンゴム組成物を捲装し、これ
を加硫発泡させて発泡体層を形成した後表面をケンマし
てロールを製造する方法、また押出機を用いて、予め未
加硫ゴムチューブを連続的に押出成型し、これに熱を加
えて加硫発泡させることにより発泡体チューブを作り、
これを接着剤を塗布した芯金に装着することにより製造
する方法などがある。A method for producing an oil-coated roll having such a silicone rubber foam as a coating layer is performed by a known method. For example, an adhesive is applied to the outer peripheral surface of the core die that has been washed and degreased, the raw material silicone rubber composition is wound, and this is vulcanized and foamed to form a foam layer, and then the surface is subjected to a comma. A method for producing a roll, using an extruder, extruding an unvulcanized rubber tube in advance continuously, and heat it to vulcanize and foam to make a foam tube,
There is a method of manufacturing by attaching this to a cored bar coated with an adhesive.
なお、このオイル塗布ロールのシリコーンゴム発泡体
は、表面は研磨なしで使用しても差支えない。The silicone rubber foam of this oil-coated roll may be used without polishing the surface.
［作用］ 本発明に係るオイル塗布ロールによれば、芯金上に被覆
層として全有機基の３〜50モル％がフェニル基であるジ
オルガノポリシロキサンをベースとするシリコーンゴム
発泡体を形成したもので、シリコーンオイルによる膨潤
が小さく寸法安定性に優れると共に、膨潤によるシリコ
ーンゴム発泡体の強度低下を小さくして、被覆層の摩耗
を小さくすることができる。[Operation] According to the oil coating roll of the present invention, a silicone rubber foam based on a diorganopolysiloxane in which 3 to 50 mol% of all organic groups are phenyl groups is formed as a coating layer on a core metal. In this case, the swelling due to the silicone oil is small and the dimensional stability is excellent, and the strength reduction of the silicone rubber foam due to the swelling can be reduced to reduce the abrasion of the coating layer.
［実施例・比較例］ 下記に示すフェニル基含有量の異なる生ゴムＩ〜IVを用
いて下記処方のコンパウンドを製造した。なお、Ｉは比
較例の生ゴムであり、II〜IVは実施例の生ゴムである。[Examples / Comparative Examples] Raw rubbers I to IV having different phenyl group contents shown below were used to produce compounds having the following formulations. In addition, I is the raw rubber of the comparative example, and II to IV are the raw rubbers of the examples.
生ゴム 100重量部 末端シラノール封鎖ジメチルポリシロキサン （20C.S） ５重量部 アエロジル200（日本アエロジル製） 30重量部 ペンゾイルパーオキサイド 1.4重量部 ジクミルパーオキサイド ３重量部 アゾビスイソブチルニトリル ５重量部 生ゴム Ｉ ビニル基0.2％モル含有メチルビニルポリシロキサ
ン II ビニル基0.2％モル％フェニル基３モル％ 含有メチルフェニルビニルポリシロキサン III 〃 フェニル基10モル％ 〃 IV 〃 フェニル基50モル％ 〃 次に、8mmの外径の芯金を洗浄後、接着剤を介して上記
コンパウンドを巻き付けて200℃・２時間熱空気中で発
泡加硫させた。これをシリコーンオイルKF96（100CS）
（信越化学製）中に180℃・４時間オイル含浸した後、
直径が18mmになるまで研磨した。これらのロールをキヤ
ノン（株）製乾式複写機NP−500REのオイル塗布ロール
として使用したところ次のような下記表に示す結果を得
た。Raw rubber 100 parts by weight Terminal silanol-capped dimethylpolysiloxane (20C.S) 5 parts by weight Aerosil 200 (manufactured by Nippon Aerosil) 30 parts by weight Penzoyl peroxide 1.4 parts by weight Dicumyl peroxide 3 parts by weight Azobisisobutylnitrile 5 parts by weight Raw rubber I Vinyl group 0.2% mol containing methyl vinyl polysiloxane II Vinyl group 0.2% mol% Phenyl group 3 mol% containing methyl phenyl vinyl polysiloxane III 〃 Phenyl group 10 mol% 〃 IV 〃 Phenyl group 50 mol% 〃 After washing the core metal having a diameter, the above compound was wound with an adhesive and foamed and vulcanized at 200 ° C. for 2 hours in hot air. This is silicone oil KF96 (100CS)
(Shin-Etsu Chemical) After impregnating with oil at 180 ℃ for 4 hours,
Polished to a diameter of 18 mm. When these rolls were used as oil coating rolls of a dry copying machine NP-500RE manufactured by Canon Inc., the results shown in the following table were obtained.
但し、オイル含浸後の発泡体硬度は日本ゴム協会標準規
格とSRIS0101−1968のスプリング硬さ試験による数値で
ある。 However, the foam hardness after oil impregnation is the value obtained by the Japan Rubber Association standard specification and the spring hardness test of SRIS0101-1968.
上記表の結果から明らかなように、フェニル基を含有し
ていない比較例のロールＩは、オイル塗布により発泡体
内部のシリコーンオイルが加熱定着ロールにうばわれ、
また、膨潤により発泡体の強度低下が起って摩耗も大き
くなり外径が細くなり、塗布ロールに必要な十分なニッ
プ幅が得られなくなった。これに対してフェニル基を含
有する実施例のロールII〜IVは優れた耐久性を示した。As is clear from the results in the above table, in the roll I of the comparative example which does not contain a phenyl group, the silicone oil inside the foam is exposed to the heat fixing roll by the oil application,
In addition, the swelling caused a decrease in the strength of the foam, resulting in a large amount of wear and a thin outer diameter, which made it impossible to obtain a sufficient nip width required for the coating roll. On the other hand, the rolls II to IV containing the phenyl group showed excellent durability.
［発明の効果］ 以上説明した如く、本発明に係るオイル塗布ロールによ
れば、被覆層の寸法安定性を良好にし、かつ、摩耗を小
さくすることができるものである。[Effects of the Invention] As described above, according to the oil application roll of the present invention, the dimensional stability of the coating layer can be improved and the abrasion can be reduced.
Claims (1)
３〜50モル％がフェニル基であるジオルガノポリシロキ
サンをベースとするシリコーンゴム発泡体を形成したこ
とを特徴とするオイル塗布ロール。1. An oil coating characterized in that a silicone rubber foam based on a diorganopolysiloxane in which 3 to 50 mol% of all organic groups are phenyl groups is formed as a coating layer on a core metal of a roll. roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6790486A JPH0715606B2 (en) | 1986-03-26 | 1986-03-26 | Oil application roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6790486A JPH0715606B2 (en) | 1986-03-26 | 1986-03-26 | Oil application roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62226175A JPS62226175A (en) | 1987-10-05 |
| JPH0715606B2 true JPH0715606B2 (en) | 1995-02-22 |
Family
ID=13358346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6790486A Expired - Fee Related JPH0715606B2 (en) | 1986-03-26 | 1986-03-26 | Oil application roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715606B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157445A (en) * | 1990-04-12 | 1992-10-20 | Fuji Xerox Co., Ltd. | Fixing device |
-
1986
- 1986-03-26 JP JP6790486A patent/JPH0715606B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62226175A (en) | 1987-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4360566A (en) | Curable organopolysiloxane composition for heat fixing rolls | |
| US4810564A (en) | Elastomer roll having a first layer of an organopolysiloxane composition and a second thin layer of a fluorine resin | |
| US4711818A (en) | Fusing member for electrostatographic reproducing apparatus | |
| US4518655A (en) | Fusing member for electrostatographic copiers | |
| EP0204526A2 (en) | Silicone elastomers | |
| JP4435952B2 (en) | Thermally conductive liquid silicone rubber composition for fixing roll and fluororesin-coated fixing roll | |
| JPS63186024A (en) | Roll covered by silicone rubber | |
| JPH0811243A (en) | Manufacture of fixing roll | |
| JP2001183934A (en) | Liquid silicone rubber composition for fixing roll and fixing roll coated with fluororesin | |
| JP2937622B2 (en) | Fixing roll | |
| JPH0475515B2 (en) | ||
| JP3497065B2 (en) | Silicone rubber coated roll | |
| CN115552338A (en) | Sponge roller | |
| JPH0715606B2 (en) | Oil application roll | |
| JP2635064B2 (en) | Roll for fuser | |
| JP3324413B2 (en) | Conductive silicone rubber roll | |
| JPH03269472A (en) | Fixing roll | |
| JP3750779B2 (en) | Heat fixing roll | |
| JP3319282B2 (en) | Conductive silicone rubber roll for office machines | |
| JPH0812890A (en) | Elastic roll and its production | |
| JPS61158362A (en) | Heating and fixing roll | |
| JPH0560105B2 (en) | ||
| JPH10228205A (en) | Coating roller for release agent | |
| JP3696342B2 (en) | Paper feed roll | |
| JP3320109B2 (en) | Silicone rubber composition for rolls used in copiers and printers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |