SU649335A3 - Electrostatographic developer - Google Patents

Electrostatographic developer

Info

Publication number
SU649335A3
SU649335A3 SU752107234A SU2107234A SU649335A3 SU 649335 A3 SU649335 A3 SU 649335A3 SU 752107234 A SU752107234 A SU 752107234A SU 2107234 A SU2107234 A SU 2107234A SU 649335 A3 SU649335 A3 SU 649335A3
Authority
SU
USSR - Soviet Union
Prior art keywords
toner
drum
carrier
developer
electrostatographic developer
Prior art date
Application number
SU752107234A
Other languages
Russian (ru)
Inventor
Д. Фишер Дональд
Original Assignee
Ксерокс Корпорейшн (Фирма)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ксерокс Корпорейшн (Фирма) filed Critical Ксерокс Корпорейшн (Фирма)
Application granted granted Critical
Publication of SU649335A3 publication Critical patent/SU649335A3/en

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08713Polyvinylhalogenides
    • G03G9/08715Polyvinylhalogenides containing chlorine, bromine or iodine
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08713Polyvinylhalogenides
    • G03G9/08715Polyvinylhalogenides containing chlorine, bromine or iodine
    • G03G9/08717Polyvinylchloride
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/09Colouring agents for toner particles
    • G03G9/0906Organic dyes
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/097Plasticisers; Charge controlling agents
    • G03G9/09708Inorganic compounds
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/097Plasticisers; Charge controlling agents
    • G03G9/09708Inorganic compounds
    • G03G9/09725Silicon-oxides; Silicates
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/10Developers with toner particles characterised by carrier particles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Description

Изобретеине относнгс  к элекгросга тографическим про вител м, Иавестен элекгростагографическйй про вигелгь, содержащий носигепь, тонко- идалельчевный гонер и присадку- гидрофобный силикагепь l . Прзилнпание зерен носител  к электро статическому барабану способствует образованию на поверхносги глубоких цара mtH во врем  перевода изображени  и очистки барабана. Крупные зерна носите л  прил пают к поверхности и происходи стирание печати. С целью повышени  эффективности и качества про влени , электростатографический про витель дополнительно содержит полимерную присадку на оснсже пс и ви шши денфтори да, Эпекгростатогрвфический про витель содержит носитель, тонкоизмельченный тонер, присадку-гидрофобный силикагель и полимерную присадку на основе попнвинилиденфторида . Тонеры составов могут примен тьс  дп  про влени  электростатических иаображевий на любой подход щей дл  поверхности, включав обычные фотопрово дшаие поверхности. Пример, Селеновый барабан автоматической копировальной машины зар жаетс  коронным разр дом до п,оложительного напр жени  около SCO В к экспонируетс  под черно-белым оригиналом дл  образовани  электростатическо- ГО скрытого изображени . Контрольный про витель, состоит из 1 вес,ч, тонера, имеющего величину критического поверхностного нат жени  сжоло ЗО дин/см, и содержит сополимер стирол-бутИл метакрилат , около 10 вес,% сажи н около 1ОО ч зерен носител  со стальной серпцевиной . Средн   крупность частиц около 1О мкм, а зерен носители - около 450 мкм. После про влени  электростат ческо14} скрытого изображени  на стаипик про64 ЯЕвлени  полученное нэображение было перевеаено на лисг бумаги на сганцнн аеревода. Частицы гонера, оставшиес  на селеновом барабанов после прохода через сганиик) перевода, были удалены очишак пим ножом, сосго шим на пр моугольной полосы толщиной S-32 иэ полиуретанового эластомера, именлцей пру жиншций край, скощенный к фоторецепгорной поверхносгн Задн   поверхность очтцающего ножа образует острый угол 22 с линией Тангенса, проход щей через пинкю контакта ножа. К ножу прикладываетс  давление, достаточное дл  максимального удалени  часгнц тонера с поверхиосги барабана. Поверхность барабана вращаетс  со скоростью около 1О дю мов в 1 сек (1 ,4 мм) под очи шаюшим ножом и получаетс  500 копий. После получени  нескольких копий исследуетс  их качество и услови  на барабане . Копии, полученные вначале и перед окончанием испытани  отличались больши фоном, полосами и неравномерной плотностью изображений. Большие участки были покрыты непрерывной плейкой тонера и местакш пс осами и царапинами. Были измерены электричесше свойства барабана, и найдено, что они беспор дочны впол|9 поверхности: вследствие отложений тонера и царапин. Приме р 2. Аналогичен примеру 1, но к ЮОвес. частиц тонера .добавл ют 1 вес,ч. частиц поливинадиденфторида и рес.ч. гидрофобного кремнезема. Частицы поливишшиденфториаа . Имеют сферическую форм к пределы крупности от О,3 до 0,4 мкм 54 Твердость по Шору (AST МО 67 6) 6О-70 (по Роквеллу 80-95), Кремнезем - Аэросил R 972, Барабан, примен вшийс  в примере 1, замен ют другим. После 500 циклов ис следуют качество копий, услови  на барабане и частицы носител . ИЬпии, полученные во врем  испытаний , отличались высоким качеством печаги и почти отсутствием фоновых огложений тонера. При измерении электрических свойств барабана найдено, чго реагирование бьшо почти одинаковым перед испытанием и после испытани . На поверхности барабана не было обнаружено признаков образовани  пленки тонера, полос и царапин. После долговременного применени  грибоэлектрические свойства ксерографически были более сильными, чем у образца без кремнезема. Выражение материал носител  включает ,элекгроскопический тонерный материал или комбинацию тонерного магериала и материала носител  К тонеру или носителю могут также добавл тьс  другиематериалы дл  сенсибилизации и синергизации. Форму лай зобретенй Эпектростатографический про витель, содержащий носитель, тонкоизмепьченный тонер и присадку-гидрофобный силикагель, отличающийс  гем, что, с целью повышени , эффективности и качества про влени , он дополнительно содержит полимерную присадку : на основе поливинипнденфторида . Источники информации, прин тые во внимание при экспертизе 1. Патент США / 3788994, кл. G| 03 ( 9/00, 1974.Invention with respect to elekgrosga tograficheskimi m m, Iavesten elektrogrostaogograficheskii proiggelg, containing nosigep, fine and remote goner and additive - hydrophobic silica gel l. The application of carrier grains to an electrostatic drum promotes the formation of deep mtH on the surface during image transfer and drum cleaning. Large grains are carried and applied to the surface and print erasure occurs. In order to increase the efficiency and quality of the development, electrostatic developer additionally contains a polymeric additive based on PS and deformation of fluorine and EpecGrostatogravichesky developer contains a carrier, finely divided toner, an additive-hydrophobic silica gel and a polymeric additive based on popnvinylidene fluoride. Toners of formulations can be applied by dp manifestations of electrostatic images on any suitable surface, including conventional photoconductive surfaces. Example: The selenium drum of an automatic copying machine is corona-charged to a positive voltage of about SCO B to be exposed under the black-and-white original to form an electrostatic latent image. The control developer consists of 1 weight, h, toner, which has a critical surface tension value of 30 dyne / cm, and contains styrene-butyl methacrylate copolymer, about 10% by weight, carbon black, and about 1OO h of carrier grains with steel core. The average particle size is about 1O microns, and the carrier grains are about 450 microns. After the electrostatic display 14} of the latent image was developed, the resulting image was transferred to a paper sheet on a stationary market. The goner particles, remaining on the selenium drums after passing through the organics transfer, were removed by a knife with a knife, which was attached to a rectangular strip with a thickness of S-32 and a polyurethane elastomer, forming a sharp edge along the spring of presses on the photoreceptor surface. 22 with the Tangent line passing through the pink of the knife contact. A sufficient pressure is applied to the knife to maximize the removal of toner from the surface of the drum. The surface of the drum rotates at a speed of about 1O dyms per second (1, 4 mm) under the eye of a dagger and 500 copies are obtained. After receiving several copies, the quality and condition of the drum is examined. The copies obtained at the beginning and before the end of the test were distinguished by a large background, stripes and uneven image density. Large areas were covered with a continuous play of toner and places ps wasps and scratches. The electrical properties of the drum were measured, and it was found that they were completely disordered on the surface: due to toner deposits and scratches. Apply p 2. Similar to example 1, but to YuOves. toner particles. add 1 weight, h. polyvinylide fluoride particles and res.ch. hydrophobic silica. Polyvishfluoride particles. They have spherical shapes to the size range from O, 3 to 0.4 µm 54 Shore hardness (AST MO 67 6) 6О-70 (Rockwell 80-95), Silica - Aerosil R 972, Drum, used in Example 1, replaced by another. After 500 cycles, the quality of the copies, the conditions on the drum and the carrier particles are examined. The effects obtained during the tests were characterized by a high quality of the pegs, and almost no background deposits of toner. When measuring the electrical properties of the drum, it was found that the response was almost the same before the test and after the test. No signs of toner film formation, streaks or scratches were found on the surface of the drum. After long-term use, the mushroomelectric properties were xerographically stronger than that of the sample without silica. Expression carrier material includes an electrophotoscopic toner material or a combination of a toner material and carrier material Other materials for sensitization and synergization can also be added to the toner or carrier. Shape of the barriers Epectrostatic developer containing a carrier, fine toner and a hydrophobic silica gel, which differs in heme, which, in order to increase its effectiveness and quality, it additionally contains a polymeric additive: based on polyvinyl fluxide. Sources of information taken into account in the examination 1. US patent / 3788994, cl. G | 03 (9/00, 1974).

SU752107234A 1974-02-25 1975-02-24 Electrostatographic developer SU649335A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US445389A US3900588A (en) 1974-02-25 1974-02-25 Non-filming dual additive developer

Publications (1)

Publication Number Publication Date
SU649335A3 true SU649335A3 (en) 1979-02-25

Family

ID=23768711

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752107234A SU649335A3 (en) 1974-02-25 1975-02-24 Electrostatographic developer

Country Status (13)

Country Link
US (1) US3900588A (en)
JP (1) JPS50120631A (en)
BE (1) BE825924A (en)
BR (1) BR7500546A (en)
CA (1) CA1054838A (en)
DE (1) DE2502659C3 (en)
ES (1) ES435074A1 (en)
FR (1) FR2262336B1 (en)
GB (1) GB1494360A (en)
IT (1) IT1031952B (en)
NL (1) NL179946C (en)
SE (1) SE401567B (en)
SU (1) SU649335A3 (en)

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JPS55157755A (en) * 1979-05-28 1980-12-08 Canon Inc Developing method
JPS5662256A (en) * 1979-10-24 1981-05-28 Minolta Camera Co Ltd Electrophotographic developer and developing method
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US4272600A (en) * 1980-01-07 1981-06-09 Xerox Corporation Magnetic toners containing cubical magnetite
FR2478839B1 (en) * 1980-03-20 1987-07-17 Bull Sa POWDER FOR THE DEVELOPMENT OF LATENT IMAGES AND ITS MANUFACTURING METHOD
JPS58132757A (en) * 1982-02-03 1983-08-08 Konishiroku Photo Ind Co Ltd Electrostatic image developer and image formation method
JPS58205160A (en) * 1982-05-25 1983-11-30 Konishiroku Photo Ind Co Ltd Electrostatic image developer and image forming method
US4468445A (en) * 1983-01-31 1984-08-28 Kelly Paul P Electrophotographic mixture containing toner particles and coated carrier particles
US4626487A (en) * 1983-08-03 1986-12-02 Canon Kabushiki Kaisha Particulate developer containing inorganic scraper particles and image forming method using the same
JPS60136755A (en) * 1983-12-26 1985-07-20 Minolta Camera Co Ltd Dry type developer for electrostatic latent image developing
US4666813A (en) * 1985-01-08 1987-05-19 Canon Kabushiki Kaisha Developer for developing electrostatic latent images contains vinylidene fluoride polymer
US4647522A (en) * 1985-01-14 1987-03-03 Xerox Corporation Toner compositions containing certain cleaning additives
US4764448A (en) * 1985-04-05 1988-08-16 Mitsubishi Chemical Industries, Ltd. Amorphous silicon hydride photoreceptors for electrophotography, process for the preparation thereof, and method of use
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US5041351A (en) * 1988-03-30 1991-08-20 Canon Kabushiki Kaisha One component developer for developing electrostatic image and image forming method
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US5670289A (en) * 1995-05-26 1997-09-23 Xerox Corporation Method of using scavengeless developer compositions
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US5691097A (en) * 1996-11-01 1997-11-25 Xerox Corporation Toner compositions
US5716752A (en) * 1997-04-17 1998-02-10 Xerox Corporation Method of making toner compositions
US5763132A (en) * 1997-04-17 1998-06-09 Xerox Corporation Toner compositions
US5916722A (en) * 1998-02-05 1999-06-29 Xerox Corporation Toner compositions
US5948583A (en) * 1998-04-13 1999-09-07 Xerox Corp Toner composition and processes thereof
US6103440A (en) * 1998-05-04 2000-08-15 Xerox Corporation Toner composition and processes thereof
US6214507B1 (en) 1998-08-11 2001-04-10 Xerox Corporation Toner compositions
US6004714A (en) * 1998-08-11 1999-12-21 Xerox Corporation Toner compositions
US6190815B1 (en) 1998-08-11 2001-02-20 Xerox Corporation Toner compositions
US6017668A (en) * 1999-05-26 2000-01-25 Xerox Corporation Toner compositions
US6087059A (en) * 1999-06-28 2000-07-11 Xerox Corporation Toner and developer compositions
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US6203963B1 (en) 2000-03-15 2001-03-20 Xerox Corporation Particulate surface treatment process
US6203960B1 (en) 2000-08-22 2001-03-20 Xerox Corporation Toner compositions
US6420078B1 (en) 2000-12-28 2002-07-16 Xerox Corporation Toner compositions with surface additives
US6566025B1 (en) 2002-01-16 2003-05-20 Xerox Corporation Polymeric particles as external toner additives
JP3778890B2 (en) * 2002-11-12 2006-05-24 東洋インキ製造株式会社 Electrostatic charge image developer and image forming method
US7618757B2 (en) * 2005-05-11 2009-11-17 Xerox Corporation Imaging member having first and second charge transport layers
US7563549B2 (en) * 2005-05-20 2009-07-21 Xerox Corporation Imaging member
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BE789988A (en) * 1971-10-12 1973-04-12 Xerox Corp COMPOSITION OF DEVELOPER AND METHOD FOR ITS USE

Also Published As

Publication number Publication date
IT1031952B (en) 1979-05-10
DE2502659C3 (en) 1980-02-28
CA1054838A (en) 1979-05-22
AU7831275A (en) 1976-08-19
GB1494360A (en) 1977-12-07
NL179946C (en) 1986-12-01
NL179946B (en) 1986-07-01
JPS50120631A (en) 1975-09-22
FR2262336B1 (en) 1978-07-21
DE2502659B2 (en) 1979-06-28
SE7501782L (en) 1975-08-26
DE2502659A1 (en) 1975-08-28
NL7500938A (en) 1975-04-29
FR2262336A1 (en) 1975-09-19
ES435074A1 (en) 1977-04-16
US3900588A (en) 1975-08-19
BR7500546A (en) 1975-12-02
SE401567B (en) 1978-05-16
BE825924A (en) 1975-06-16

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