Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G9/00—Developers
  • G03G9/08—Developers with toner particles
  • G03G9/087—Binders for toner particles
  • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
  • G03G9/08793—Crosslinked polymers
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G9/00—Developers
  • G03G9/08—Developers with toner particles
  • G03G9/0827—Developers with toner particles characterised by their shape, e.g. degree of sphericity
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G9/00—Developers
  • G03G9/08—Developers with toner particles
  • G03G9/097—Plasticisers; Charge controlling agents
  • G03G9/09783—Organo-metallic compounds

Definitions

• the present invention relates to a static image developing toner and a method for producing the same. More specifically, the present invention improves the hot offset resistance at the time of fixing, improves the sticking property, has a good charge rise, high density, and low capri. In addition, the present invention relates to a toner for developing a static image having excellent characteristics such as a clear color even with a strong toner and a method thereof. Background
• the photoreceptor In the ⁇ method using electrophotography ⁇ , the photoreceptor is uniformly charged, and then the photoreceptor is exposed to dissipate the m # of the exposed portion, thereby forming a static flaw, and the static image.
• the toner is made visible by developing toner and developed, the visualized image is transferred onto a material such as paper, and the transferred image is fixed by means such as heating.
• Such toner used for; ⁇ is called static S ⁇ image fine toner.
• Patent Document 1 discloses a means for spheroidizing toner by calorimetry as the last step to improve image quality such as transferability, image density and suppression of capri. In this method, it is possible to obtain good development and transfer by making the toner spherical by reason, such as hot offset and fixed scratches, etc. Fixing failure may occur.
• Patent Document 2 discloses, as m3 ⁇ 4u crane ij, an electrophotographic toner containing an aromatic oxycarboxylic acid or a salt thereof, a compound containing zirconium and a zirconium compound obtained by force. .
• this toner has the effect of suppressing the deterioration of the band even under high temperature and high humidity and suppressing fogging, the toner with high circularity: tj ⁇ has poor transferability and the desired image density. S There was a problem that it was difficult to obtain.
• the present invention improves the hot offset resistance during fixing, improves the constant wrapping property, has a good rise in charge amount, a high concentration, and even under high temperature and high humidity. A high quality image with little capri is obtained, and a clear color is also obtained with color toners, and so on. It is for the purpose.
• the inventors of the present invention have made arbitrary efforts to achieve the purpose of selfishness, and as a result, they have become a product of Ninder Indore oil and aromatic hydroxycarboxylic acid 3 ⁇ 4 ⁇ with its salt and zirconium-containing compounds. Including toner particles obtained by applying a bridge treatment in a floating state so that the average circularity is in a specific range, and a crane containing at least Based on this finding, he found out that his purpose was to humiliate him and led the present invention. That is, the present invention
• a powder containing a binder resin, m ⁇ lj crane IJ, and a colorant contains toner insulators obtained by spheronizing so that the average circularity becomes 0.93 0 to 0 ⁇ 9 8 0 by Tachibana treatment, and the reading agent is an aromatic hydroxycarboxylic acid or Seiken
• Toner which has a salt that it contains at least the salt and zirconium-containing material
• the resistance to hot offset during fixing is improved, the sticking property is improved, the rising amount of charge is high, the density is high, and the amount of fog is low even under high temperature and high humidity. It is possible to obtain a static image developing toner having excellent characteristics such as that a crisp image can be obtained and a clear color strength S can be obtained even in a color toner, and the production thereof.
• the static image present toner according to the present invention (hereinafter sometimes simply referred to as toner) is composed of a kneading resin, a 3 ⁇ 43 ⁇ 4 IJ crane IJ, and a glaze containing material, and a carotrophic bridge treatment in a floating state.
• the toner obtained by spheroidizing so that the average degree of circularity becomes 0.93 0 -0.98 0 containing a magnetic element, the strength of the tflt self 3 ⁇ 43 ⁇ 43 ⁇ 4J agent is an aromatic hydroxycarboxylic acid Or it should be a tree that contains at least the salt and its zirconium-containing product.
• the static image actual fine toner of the present invention contains a kinder resin, 3 ⁇ 4 ⁇ crane IJ, and a toner stand that contains a difficult agent as an essential component.
• the binder resin used in the present invention is not particularly limited, and examples thereof include polyester resins, polyamide resins, polyurethane resin, acrylic resins, polyethylene resins, polyolefin resins such as polyethylene, and polypropylene, and ethylene mono-no-replenene copolymers.
• Cyclic olefin copolymer Gen resin, Silicone resin, Ketone resin, Maleic acid resin, Coumarone resin, Phenol resin, Epoxy resin, Terpene resin, Petroleum resin, Polystyrene, Styrene monobutadiene copolymer, Styrene one Mention may be made of styrene resins such as maleic acid copolymers, styrene mono (meth) acrylo-ester copolymers, poly (meth) atari / butyl, polyvinyl petital, and the like. Among these, polyester resin can be preferably used. Examples of polyester resins include condensation polyesters of aromatic dicarboxylic acids and alkylene etherified bisphenol A.
• This polyester resin preferably has a gravimetric range of 2 to 25 mg KoHZg.
• the aromatic hydroxycarboxylic acid used as 3 ⁇ 43 ⁇ 4U crane U which will be described later, is well-suited to the binder resin of the product of its salt and zirconium-containing resin), and dispersibility is good. It is excellent in that the S ⁇ product is prevented from falling off from the toner insulator, and it is possible to obtain uniform charge and durable stability of charge. If the wrinkle exceeds 25 mg KOHZ g, there is a possibility that the band qualitative characteristics under high humidity may be lowered. More preferred les, cocoons range from 2 to: 15 mg KOHZg.
• the acid value of the polyesterol shelf is obtained by dissolving the funnel with benzyl alcohol in a nitrogen atmosphere and titrating with sodium hydroxide in benzyl alcohol.
• the flow softening fi3 ⁇ 4T 1/2 of the polyester-based resin is preferably in the range of 100 ° to: 1550 ° C.
• the flow in one softening is less than 1 0 0 ° C, occurs hot offset Ya constant winding force J H "Ku, whereas when it exceeds 1 5 0 ° C, to rise ⁇ when spherical Lee ⁇ L sense, sexual And a poor fixing force S may occur.
• Self-flow softening 3 ⁇ 4 ⁇ 1 / 2 is more preferably in the range of 120 ° to 140 ° C.
• the flow softening 1/2 is a value measured as follows.
• Measurement of flow softening Z2> Use a capillary rheometer specified in JISK 7 19 9 with a cylinder inner diameter of 1 1.3 3 9 mm, an inner diameter of a capillary die of 1 mm, and a length of 1 mm. and, a load 9 8 N on the piston, at 5 ° C / min from 5 0 ° C? to ⁇ , from when the one-half of the male resinous flows out, full opening one softening T l / 2 t. Shelf Zirconization>
• 3 ⁇ 4 ⁇ IJ crane IJ may be an abbreviation (hereinafter referred to as organic zirconium conversion! Of an aromatic hydroxycarboxylic acid or a salt thereof and a zirconium-containing compound). ) Must be used at least.
• the content of Zirconium ⁇ in the toner insulator is 0.1 to 3.0% *% from the standpoint of balance between the lift self-effect and 3 ⁇ 43 ⁇ 41 preferably in the range of, 0.2 - 2. more preferably in the range of 0 mass 0/0, more preferably the range of 0.3 to 1.0 mass 0/0 Rere.
• aromatic hydroxycarboxylic acid or a salt thereof used as one of the raw materials for zircination is, for example, the following (1):
• Ar represents an aromatic group which may have a substituent
• M represents a hydrogen atom or an alkali metal
• R represents an alkyl group having from! To 3 carbon atoms.
• the aromatic group which may have a substituent represented by Ar is, as an elementary group, an optionally substituted benzene mono-1,2-dinole S3 ⁇ 4. Naphthalene-1,3-diyl group, etc. can be mentioned.
• the substituent includes, for example, a cage-like, a-like, or a cyclic alkyl or alkenyl group having 6 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an aralkyl group having 7 to 10 carbon atoms, Examples include halogen atoms, 7 acid groups, and carboxyl groups, and one or more of these may be introduced on the aromatic ring. .
• alkyl group examples include sodium and potassium, and are represented by R:!
• alkyl groups include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group. be able to.
• aromatic hydroxycanolevonic acid represented by 1) and its salts include salicylic acid, 3,5-di-t-butylsalicylic acid, 5-methoxysalitino, 2-hydroxy 3-naphtho Acid, 3,5-disopropoxysalitin, 3,5-di-butyltinole 2 -methoxy, ⁇ benzoic acid, 6-butinoleol 2-hydroxyl 3-naphthoic acid, 3-tert-butinole-2-methoxy 5-Metinobenzoic acid, 3,5-dichlorosalitino! ⁇ 3 ⁇ 4 and their sodium and strength salts.
• salicino can preferably mention its sodium salt or strength salt.
• Zirconium-containing zirconium 3 ⁇ 4Hydroxycarboxylic acid or its salt 1 monole 45 moles of zirconium atoms are introduced.
• L is the hydrogen atom of the carboxyl group in aromatic hydroxycarboxylic acid removed. Indicates residue.
• the organic zirconium compound represented by these is obtained.
• an organic zirconium compound represented by the above-mentioned Ippune-wipe (3) can be obtained by allowing the material to be filtered for a suitable period of time at ° C m3 ⁇ 4 and then »".
• ®3 ⁇ 4f control crane IJ that can be used in combination with fit's own shelf zirconization ⁇ is, for example, monoazo aphrodisiac acetylacetone ⁇ «formation ⁇ ), melamine hydroxycarboxylic acid, etc.
• Metallic salicino! Examples of compounds include boron compounds, boron compounds, and calixarene.
• the charging characteristics of the toner for developing a static image can be stabilized and the occurrence of capri can be prevented.
• ⁇ ⁇ ⁇ organic dinoconium can be used in combination with 1 3 ⁇ 4 ⁇ or 2S3 ⁇ 4.
• the above may be used in combination with one or more other pills.
• the amount of the «3 ⁇ 4IJ crane IJ depends on the cocoon, but the above-mentioned knucker, one resin 100 parts by mass From the viewpoint of stabilizing the charging characteristics of the toner and preventing the occurrence of capri, it is usually 0.2 to
• the agent used in the present invention is not particularly limited.
• Various organic pigments and dyes can be used.
• black materials include carbon black, acid, quaternary, manganese dioxide, and aniline black.
• yellowing materials include: Ha 0- Manent Yellow, Chrome Yellow, Quinoline Yellow, Benzine Yellow, Yellow Acid Salt Iron, CI Pigment 'Yellow 97, C.I. Pigment' Yellow 17, C. I. Pigment 'Yello 1 80, C. I. Sonorevent' Yello 1 6 2 and the like.
• red pigments include Bengala, Lake Red, Rhodamine 6 B, Quinacridone, Carmine 6 B, C.I.
• Pigment 'Red 48 1, C.I. Pigment' Led 1 2 2, C. I. Pigment 'Red 5 7: 1, C.I. Pigment' Red 1 8 4 can be listed.
• Blue feffi charges include, for example, bitumen and Konoruto Puno! ⁇ , Phthalocyanine puno ⁇ , anilymbuno ⁇ ", C.I. pigment pu, ⁇ 15: 1, C.I. pigment bull 1 15: 3, etc.
• a static image The content of the agent in the developing toner is preferably from! To 20% by mass, more preferably from 2 to 8% by mass, and the content of the colorant is less than 1% by mass. If the content of satiety agent exceeds 20% by mass, the toner fixing 14 may decrease (optional component).
• the toner insulator according to the present invention may contain wax, silica powder and the like in addition to the binder resin and crane sucking agent described above.
• the wax used for the toner carrier is used for the purpose of improving the reversibility at the time of heat roll fixing.
• a wax include plant waxes such as carnauba wax and rice wax, Oil wax such as paraffin wax, microcrystalline wax, mineral wax such as montan wax, canderia wax, carbowax, polyethylene wax, polypropylene wax, ethylene-propylene copolymer wax, ⁇ naphthalene wax Synthetic waxes, stearic acid, arachidic acid, behenic acid and other high-fine fatty acids, seryl alcohol, melicyl alcohol, and other high-grade alcohols, stearic acid amide, behenic acid amide-based wax, fatty acid ester Examples include steal, alcohol esters such as glycerol monostearate and glycerol distearate, and silicone varnish. One of these waxes can be used alone, or two or more of these waxes can be used in combination.
• the melting point of this wax is preferably 50 to 160 ° C, more preferably 60 to 150 ° C. If the melting point of the wax is less than 50 ° C, the storage stability of the toner may be deteriorated. If the melting point of the wax exceeds 150 ° C, the low adhesion of the toner may be insufficient. There is.
• the “Tassus” can be obtained as an endothermic peak when the temperature is 10 ° CZ by using the display (DSC).
• the content of the wax in the toner ⁇ child is preferably 0.5 to 5 mass 0/0,:! More preferably, it is 3 mass%. If the wax content is less than 0.5 mass%, the low-temperature fixing of the toner may be insufficient. If the wax content exceeds 5% by mass, particles will be deposited in the manufacturing process, and the “x” component will ooze out on the surface of the toner, especially during sphere formation. In addition, the toner's property may be reduced.
• the wax having a low affinity with the non-resin resin is adsorbed on the sill-force particles, and is uniformly dispersed in the binder resin, to the surface of the toner particles. Suppression is suppressed. As a result, the size of the powdered toner particles is improved, and adhesion and accumulation in the s ⁇ are prevented.
• the average primary particle size of the silli force powder used in the present invention is preferably 0.05 to 0.02 / zm, and preferably 0.00 to 0.01 6 ⁇ . More preferred.
• the silica powder is not particularly limited, and examples thereof include dry method silica, wet i3 ⁇ 4fc descending silica, and wet genore method silica.
• a silica-based silica having a silanol group, a trimethylsilanol-modified silanol group, or a silica treated hydrophobically with silicone oil is particularly suitable because it has a large affinity for the binder tree.
• the content of silica powder in the toner fine particles is usually from 0.25 to 5%.
• the content of the fine silica powder is less than 0.2 5 mass 0/0, there is a risk that the wax Ru adsorption 3 ⁇ 4 T effect is not sufficiently exhibited. If the content of silica powder exceeds 5% by mass, toner fixing 14 is inhibited, and color toner may reduce the transparency of the toner.
• U Ryukyu aqueous silicic power powder as U it is produced from dry silica powder, which is made of halogenated silane such as silicon tetrachloride by vapor phase oxidation, and called fumed silica, and water glass.
• the so-called wet squeeze powder misalignment can also be used, but there are few silanol groups on the surface and inside, and there are few production residues such as Na 2 O, S 0 3 —! Powder is preferred.
• Examples of treatments used to hydrophobize the silica powder include silicone varnish, various modified silicone varnishes, silicone oils, various modified silicone oils, silazaneized ⁇ , and cyclic dimethylsiloxa silane coupling agents. It can. Of these, silicone oil, silazane compound, cyclic dimethylolene siloxane, and silane coupling agent are preferable.
• silicone oils include dimethyl silicone oil, methylphenyl silicone oil, ⁇ -methylolene styrene modified silicone resin, and fluorine modified silicone oil.
• silazane compounds include cyclic hexamethyldisilazane.
• dimethylsiloxane include hexamethylcyclotricyclohexane, octamethylcyclotetracyclohexane, decamethinorecyclopentasiloxane, and the like.
• silane coupling agent examples include vinylenotrimethoxysilane, biertriethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, vinyltriacetoxysilane, methyltrimethoxysilane, methylenotriethoxysilane, isop'tinotritrimethoxysilane, dimethinoresimethoxy.
• examples include silane, dimethyl / letetoxy silane, trimethino methoxy silane, hydroxypropyl trimethoxy silane, phenyl trimethy silane, ⁇ -hexadecyl trimethoxy silane, and ⁇ -octadecyl trimethoxy silane.
• the toner can be formed by the following method. First, Noku-inter, 'One machine, crane; melt and knead wax and silica powder if desired. There are no particular restrictions on this method. For example, these materials are mixed in advance using a ribo-mixer, double-circular mixer, high-speed mixer, circular ⁇ -screw mixer, etc. Two lte3 ⁇ 4ffi machines can be used.
• the molten kneaded product is pulverized after cooling.
• the powder pestle used include impact stones, hammer mark lashers and other types of stone pestle, rod minoles, ball mills, etc.
• a jet-type pestle that uses a compressed air source such as a blow-type sarcophagus or a counter jet mill can be used.
• the powdered particles are preferably classified to remove coarse particles and fine particles to form a narrow distribution toner particle. However, there is no particular limitation, for example, it can be classified using an airflow type ⁇ ⁇ device.
• the particles are expanded by adding powder in which the distribution has been narrowed by ⁇ and using the toner particles in a floating state.
• the silica powder and preferably silica powder, is preferably used as a fluidizing agent in advance to improve the spheroidizing process.
• the addition amount of the external addition force is preferably 0.1 to 8 parts by mass, more preferably 0.5 to 6 parts by mass with respect to 1 part by mass of the toner insulator.
• a means for adding the toner insulator for example, a bed tank or a thermoforming device that disperses the toner in a hot air flow and melts the surface to open the ball is used. be able to.
• the average circularity of the toner insulator is set in the range of 0.930 to 0.980 by heat treatment.
• the average circularity of the spherical toner is the same as that of a particle having an equivalent circular diameter of 3 ⁇ m or more (for example, “FPI A_ manufactured by Sysmetas Corporation”). 2 1 0 0 ”], and is defined as follows.
• Circularity (circumference of a circle having the same fineness as the shadow area of the particle), (contour length of the particle chart) As described above, it is used as a 3 ⁇ 43 ⁇ 43 ⁇ 4IJ agent.
• Organic Zirconium ⁇ ) and a carboxylic acid with a polyester shelf suitable for use as a binder resin are formed, and the resulting toner insulator is cured and resistant to fixing. Hot offset improves wrapping resistance to heat rollers.
• the toner particles as described above can be used as a static image developing toner as they are. However, from the desired point of view, as shown below, IJ is further added to the job IJ. A toner for developing a work image can be obtained.
• the toner spheroidized into a spherical shape by the addition of -m
• the toner for static image development is sickened by exciting fine particles of oxide such as titanium oxide or fine fine particles such as polymethyl methacrylate.
• These outermost IJs are added to improve the charging characteristics and fluidity of the toner.
• the amount of calories added by lj is 0.:! To 6 parts by mass with respect to 100 parts by mass of toner particles, and preferably 0.3 to 5 parts by mass. .
• the powder containing the comparatively inner fat, the thoracic agent, and the agent is opened to a mean circularity of 0.930 to 0.980 by a color treatment in a floating state.
• a process for preparing toner particles, and as a powerful IJ Crane IJ, the aromatic hydroxycanolebon ⁇ X uses at least the product of its salt and a zirconium-containing product. The process of producing the above-described static image present toner of the present invention is also considered.
• Tetrahydrofuran (THF) insoluble content of the toner binder resin was measured as follows.
• This THF-insoluble matter is a measure of the amount of cross-linked components in the polyester resin.
• the increment of THF-insoluble matter can be calculated by subtracting the value of THF-insoluble matter obtained from the polyester resin as the raw material from the value of the THF content obtained for Tona 3 ⁇ 4 * -Ritsuko.
• Polyester resin (noodles: 6. OmgKOH / g, flow softening & 3 ⁇ 4 ⁇ 1/2: 130. (:, T HF insoluble matter 1.5 wt 0/0) 91.00 parts by weight of carbon black [Cabot Japan Society 3 ⁇ 4 Product name “Black Pe arls L”] 5.00 parts by mass, Salicy ⁇ Zirconium!
• 3 ⁇ 4U agent [Hodogegakigaku Kogyo Co., Ltd., trade name “TN105”] 0.75 parts by mass, Salicy type [Orient Kagaku Kogyo Co., Ltd., trade name “BONTRON E-304”] 1.00 Parts by mass, « ⁇ Re-Rice Wax [manufactured by Borso Oil Tsuki Co., Ltd.,“ LAX_N—300A ”, DSC endothermic peak: 80 ° C] and 1.00 parts by mass [manufactured by Sanyo Engineering Co., Ltd. 110 TS "] 2.00 parts by mass of melt-mixed kneaded mixture with a twin screw extruder at a temperature of 150. After C), the mixture was crushed with a jet and a cocoon to a mean value of 7.5 / m, and the coarse powder and fine powder were classified with difficulty to obtain a ton * with a sharp 3 ⁇ 43 ⁇ 43 ⁇ 4 distribution.
• the resulting sphere ⁇ toner Tachiko was removed from the butterfly [Nippon Kogyo Co., Ltd., “Elbow Jet EJ—PUROJ”, and the coupling particles were removed to remove ⁇ - ⁇ ⁇ 7.8 ⁇ m Got Toner Reiko.
• hydrophobic silica manufactured by CB Corporation, trade name “CAB-O-SIL TS-530”
• strontium titanate B
• Nitrogen adsorption specific surface area by ET method 1.85m 2 / g
• the flow softening temperature T 1/2 of this toner is 132.
• marking was carried out as follows, and the stickiness, high-temperature and high-humidity (30 ° C / 80% RH), and the fixing I life were evaluated.
• a black cartridge was filled with the above toner and a 3,000 sheet print test was conducted. In printing, an image pattern with a printing rate of 5% was printed.
• Example 2 The toner was removed in the same manner as in Example 1 except that “E 304” manufactured by Orient Chemical Industry Co., Ltd. was used as the toner crane IJ. Manufactured and stamped ⁇ . Ball rot! ⁇ Thermal heat JW3 ⁇ 4t is 300 ° C, the feed amount is 5.0 kgZh, and the toner flow softening T 1/2 is 131.4 ° C, THF insoluble content is 6.0 mass 0 The increment of THF-insoluble matter is 4.5 mass 0 /. Met.
• Example 3 Example 3
• toner toner in Example 1 As 3 ⁇ 43 ⁇ 43 ⁇ 4 IJ crane IJ, except that the amount of TN105J was changed to 0.25 parts by mass, the toner was manufactured in the same way as in Example 1, and the mark ⁇ The heat JffiJ in the ball-opening treatment was 290 ° C, the feed amount was 5.0 kgZh, and the obtained toner flow softened ⁇ JtT 1/2 was 130.6 ° C, THF insoluble matter was 4.3 * %, The increment of THF-insoluble matter calculated from this was 2.8% by mass.
• the treatment amount is 2.5 kgZh, and the inertia was not satisfactory.
• the hot offset resistance was good, wax bleeding occurred, and the toner on the charging blade was severely damaged.
• the flow softening of the obtained toner was 1 / 20.2 at 160.2 ° C.
• the THF insoluble content was 4.0 mass 0
• the increment of THF insoluble content calculated from this was 2.5 mass%.
• Toner in Example 1 “In the case of Tachiko, except that TN 1 0 5J was used as m3 ⁇ 4WiP ⁇ , toner was manufactured in the same manner as in Example 1, and the mark ⁇ was The theory was 300 ° C and the throughput was 5.1 kgZh, which was sufficient to increase productivity, but a fixed force S was generated on the heat roller.
• the toner flow softening ⁇ 1/2 was 1 34 ° C, the THF insoluble content was 3.1 mass 0 , and the increment of THF insoluble content calculated from this was 1.6 mass%.
• the average circularity becomes 0.93 0-0.98 due to the force theory in the floating state of the fluid containing nodder resin, 3 ⁇ 43 ⁇ 4 glaze agent, and satiety agent.
• Spheroidizing to prepare a toner insulator, and as a force tilting agent at least a TN 1 0 5 Si ⁇ product of an aromatic hydroxycarboxylic acid or a salt thereof and a zirconium-containing compound is used.
• the toner can be increased to 3 ⁇ 4 to satisfy the fixing property without impairing the heat resistance of the heat ball, and high quality with good capriability even under high temperature and high humidity. It can be seen that images can be obtained.
• the hot offset resistance at the time of fixing is improved, the sticking property is improved, the rising of the charge amount is good, the density is high, the high temperature and the high humidity A high-quality image with little capri can be obtained even underneath, and a clear color can be obtained with color toners.

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• 2008
  • 2008-06-24 JP JP2008164484A patent/JP5072104B2/ja not_active Expired - Fee Related
• 2009
  • 2009-06-23 WO PCT/JP2009/061808 patent/WO2009157582A1/ja not_active Ceased

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