WO2004066030A2 - 負荷電制御剤およびこれを用いた静電荷像現象用トナーおよびその製造方法 - Google Patents
負荷電制御剤およびこれを用いた静電荷像現象用トナーおよびその製造方法 Download PDFInfo
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- WO2004066030A2 WO2004066030A2 PCT/JP2004/000495 JP2004000495W WO2004066030A2 WO 2004066030 A2 WO2004066030 A2 WO 2004066030A2 JP 2004000495 W JP2004000495 W JP 2004000495W WO 2004066030 A2 WO2004066030 A2 WO 2004066030A2
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- 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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/115—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using acetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
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- 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
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08746—Condensation polymers of aldehydes or ketones
-
- 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
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08746—Condensation polymers of aldehydes or ketones
- G03G9/08748—Phenoplasts
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- 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
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08762—Other polymers having oxygen as the only heteroatom in the main chain
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- 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
- G03G9/08795—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their chemical properties, e.g. acidity, molecular weight, sensitivity to reactants
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- 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
- G03G9/08797—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature
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- 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
- G03G9/09733—Organic compounds
-
- 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
- G03G9/09733—Organic compounds
- G03G9/0975—Organic compounds anionic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Definitions
- the present invention relates to a toner for developing an electrostatic charge image, a negative charge control agent used for the same, and a load charge control.
- the present invention relates to a method for producing an agent.
- This application is based on patent application No. 0152007 of 2003, the content of which is incorporated herein.
- BACKGROUND ART As a developer for an electrostatic latent image, a dry toner is widely used in addition to a wet toner. When developing an electrostatic latent image using dry toner, the toner particles must have a positive or negative charge depending on the polarity of the electrostatic latent image being developed. Therefore, various charge control agents have been studied to control the chargeability of the toner particles.
- JP-A-63-266642 discloses phenol-type compounds, for example, Japanese Patent Publication No. Sho 41-21553 and Japanese Patent Publication No. Sho 43-27569.
- a negative charge control agent comprising a chromazo-containing dye.
- the phenolic compound disclosed in Japanese Patent Application Laid-Open No. 63-266642 can impart a certain degree of negative charge, but is not at a sufficient level.
- the azo dye-containing azo dye disclosed in Japanese Patent Publication Nos. 41-21553 and 43-27596 is black, and the color toner has a hue of toner. It had an adverse effect, and further included an effect on the environment by containing chromium.
- the present invention has been made in view of the above circumstances, and can provide a sufficient chargeability, has a good charge rising property, has good compatibility with a binder resin, has a good dispersibility, and can be used for a color toner. It does not affect the hue of the toner or adversely affect the environment.
- An object of the present invention is to provide a negative charge control agent and to provide a toner for developing an electrostatic charge image capable of obtaining a clear image.
- the negative charge control agent of the present invention is a negative charge control agent containing a polycondensate obtained by a polycondensation reaction from phenols and aldehydes,
- the phenols have one phenolic hydroxyl group, a mononuclear phenolic compound (A) in which hydrogen is bonded to the ortho position of the hydroxyl group, and two or more phenolic hydroxyl groups.
- the ortho-position of the hydroxyl group is composed of a polynuclear phenol compound (B) with hydrogen bonded to it,
- the toner for developing an electrostatic image of the present invention is the toner for developing an electrostatic image of the present invention
- the phenols have one phenolic hydroxyl group, a mononuclear phenol compound (A) in which hydrogen is bonded to the ortho position of the hydroxyl group, and two or more phenolic hydroxyl groups, and
- the ortho-position is composed of a polynuclear phenol compound (B) to which hydrogen is bonded, and the content of the polynuclear phenol compound (B) in the phenols is 1 to 30 mol%;
- the negative charge control agent is added in an amount of 0.1 :! to 10 parts by mass based on 100 parts by mass of the binder resin.
- It has one phenolic hydroxyl group, a mononuclear phenolic compound (A) in which hydrogen is bonded to the ortho position of the hydroxyl group, and two or more phenolic hydroxyl groups, and the ortho position of the hydroxyl group is A polynuclear phenolic compound (B) having hydrogen bonded thereto is prepared, and the mononuclear phenolic compound (A) and the polynuclear phenolic compound are prepared. Adjusting the content of the polynuclear phenolic compound (B) in the phenols comprising (B) to be 1 to 30 mol%;
- the present invention relates to a toner for developing an electrostatic image for developing an electrostatic latent image in electrophotography, electrostatic recording, electrostatic printing, and the like, and a negative charge control agent used for the toner.
- the negative charge control agent of the present invention contains a polycondensate obtained by a polycondensation reaction of a phenol and an aldehyde, and has one phenolic hydroxyl group as the phenol, and is located at the ortho position of the hydroxyl group.
- Has a mononuclear phenolic compound to which hydrogen is bonded (hereinafter, simply referred to as a mononuclear phenolic compound) (A) and two or more phenolic hydroxyl groups, and hydrogen is bonded to the ortho position of the hydroxyl group. (Hereinafter simply referred to as a polynuclear phenol compound) (B).
- hydrogen is bonded to the ortho-position of the hydroxyl group means that the carbon adjacent to the carbon to which the hydroxyl group is bonded is bonded to the carbon forming an aromatic ring together with the carbon. Indicates that it is bonded only to hydrogen.
- each of the mononuclear phenol compound (A) and the polynuclear phenol compound (B) may contain two or more kinds.
- Examples of the mononuclear phenol compound (A) include p-alkylphenol, p-alkylalkylphenol, p-phenylphenol, and p-hydroxybenzoate. These can be used alone or in combination of two or more.
- the mononuclear phenol compound (A) is described below.
- Examples of the mononuclear phenol compound (A) include a compound represented by the following formula (1).
- Equation (1) Represents a hydrogen, a halogen, an alkyl group, an aralkyl group, a substituted or unsubstituted amino group, and the alkyl group is a methyl group, an ethyl group, a butyl group, an octyl group, a dodecyl group. Preferred examples include those having 1 to 12 carbon atoms.
- R 2 represents hydrogen, halogen, an alkyl group, one COC m H 2m + 1 (where m is an integer from 1 to 20), an aralkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted a substituted amino group, a nitro group, an alicyclic group, one S_ ⁇ 3 H, one S i
- (CHg) 3 represents any one of an alkoxyl group, a carboxyl group, a sulfoamide group, a carbamoyl group, a cyano group, a carboxylate group, and an acyl group.
- Alkyl group, the Ararukiru group can be exemplified those exemplified in Oyopi 1 3 may be exemplified a substituent ⁇ amino group substituents as an alkyl group having 1 to 12 carbon atoms which may have a branching.
- one or more of the hydrogens of the phenyl group is an alkyl group having 1 to 8 carbon atoms, a halogen, a carboxyl group, a hydroxy group, a cyano group, a nitro group, a halogenated methyl group, a trimethylsilyl group, and a carbon number.
- the alicyclic group include a cyclohexyl group and a cyclopentyl group.
- R 35 may have a branched alkyl group having 1 to 1.8 carbon atoms, substituted or Unsubstituted phenyl, substituted or unsubstituted aralkyl, etc. Can be exemplified.
- the compound represented by the formula (1) include p-t-butylphenol, p-t-octynolephenol, p- ( ⁇ -cuminolephenol), p-phenylphenol, and p-phenylphenol. -Hydroxybenzoic acid esters.
- the phenolic compounds (A) can be used alone or as a mixture of two or more.
- Examples of the polynuclear phenol compound (B) include bisphenols, biphenol derivatives, bisphenol mono derivatives, trisphenol derivatives or derivatives thereof, tetrakisphenol mono derivatives or derivatives thereof, and the like.
- R 5 to R 8 are each hydrogen, an alkyl group, a perfluoroalkyl group, an alicyclic group, an aralkyl group, a substituted or unsubstituted phenyl group, a alkoxyl group, an aryl group, a sulfoamide group, and a carbomoyl.
- alkyl group examples include those having 1 to 8 carbon atoms such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group and an octyl group.
- Bisphenols and derivatives thereof include those represented by the following formula (3).
- R 9 to R 12 have the same contents as R 5 to R 8 in the formula (2).
- R 13 is one S ⁇ 2 —, one (CR 14 R 15 ) n — (where n represents l to 12, and R 14 and R 15 may be different from each other. In this case, R 14 and R 15 may be different for each repeating unit.), _0—, and substituted or unsubstituted C 3 to C 8 carbon atoms represented by the following formula (4) Cyclo ring, the following formula (1)
- an alkyl group, per full O b alkyl group, a substituted or unsubstituted off represents any group.
- alkyl group include those having 1 to 16 carbon atoms, and may or may not be branched.
- the perfluoroalkyl group may have a branch at 1 to 16 carbon atoms.
- substituted phenyl group As the substituted phenyl group,
- One or more of the hydrogens of the phenyl group is an alkyl group having 1 to 8 carbon atoms, a halogen, a carboxyl group, a hydroxy group, a cyano group, a nitro group, a halogenated methyl group, a trimethylsilyl group, a C1 to C8 group.
- Examples include those substituted with an amide group, an acyl group having 1 to 12 carbon atoms, a sulfonyl group having 1 to 12 carbon atoms, and an ether group having 1 to 12 carbon atoms.
- Trisphenols or derivatives thereof include those represented by the following formula (6).
- R 16 to R 21 have the same contents as R 5 to R 8 in the formula (2).
- R 23 represents the same content as R 14, R 15 in the formula (3).
- the tetrakisphenols and derivatives thereof include those represented by the following formula (7).
- R 24 to R 31 have the same contents as R 5 to R 8 in the formula (2).
- R 32 and R 33 have the same contents as R 14 and R 15 in the formula (3).
- the content of phenolic compounds of polynuclear during phenols (B) is 1 to 30 mol 0/0. Preferably 2-20 mole 0/0, more preferably 4 to 5 molar%. Molar content of 1 mole 0/0 less walk 30 mol of phenolic compounds of polynuclear (B). /. If the amount exceeds 30%, a sufficient negative charging performance may not be obtained.
- One or more polynuclear phenol compounds (B) can be used.
- aldehydes such as furfural represented by the following formula (8) can be used as appropriate, in addition to paraformaldehyde, formaldehyde, and paraaldehyde.
- R 34 is an alkyl group, a substituted or unsubstituted phenyl group, or a heterocyclic group containing a nitrogen or oxygen atom (for example, a furyl group, a pyridyl group and the like).
- the alkyl group may or may not be branched, and preferred examples thereof include those having 1 to 12 carbon atoms such as a methyl group, an ethyl group, a butyl group, an otatyl group, and a dodecyl group.
- At least one of the hydrogens of the phenyl group is an alkyl group having 1 to 8 carbon atoms, a halogen, a carboxyl group, a hydroxy group, a cyano group, a nitro group, a halogenated methyl group, a trimethylsilyl group, and a carbon number.
- Examples include those substituted with an amide group having 1 to 8 carbon atoms, an acyl group having 1 to 12 carbon atoms, a sulfonyl group having 1 to 12 carbon atoms, and an ether group having 1 to 12 carbon atoms.
- One or more aldehydes may be used. The aldehydes are preferably paraformaldehyde and / or formaldehyde.
- the polycondensate obtained by the polycondensation reaction of the phenols and aldehydes described above is used as a negative charge control agent.
- a phenol and an aldehyde are added to an organic solvent such as xylene, and the reaction is carried out in the presence of a strong base such as an alkali metal hydroxide or an alkaline earth metal hydroxide.
- the polycondensation reaction is carried out for 3 to 20 hours while distilling water at a temperature from 0 ° C to the boiling point of the solvent, preferably from 100 ° C to the boiling point of the solvent, and then re-used using a poor solvent such as alcohol. Examples include a method of crystallizing, a method of drying an organic solvent under reduced pressure, and a washing with an alcohol such as methanol, ethanol, or isopropanol.
- the strong base sodium hydroxide, rubidium hydroxide, or a hydroxide-powered rim can be preferably used.
- the ratio of the mass of the organic solvent used here to the mass of the phenols and aldehydes is not particularly limited, but preferably, the organic solvent is used in an amount of 0.5 to 1 of the total amount of the phenols and the aldehydes. It is used in a range of 100 times, preferably in a range of 1 to 10 times.
- the molar ratio between the phenols and the aldehydes used here is 1: 0.5 to 5, preferably 1: 1 to 2.
- the number of reaction sites with aldehydes increases, the molecular weight increases, the molecular weight distribution increases, and the entanglement of molecules with the nodulin resin occurs.
- the number of particles increases, the dispersion state becomes more uniform, and higher chargeability as a toner can be obtained.
- the polycondensate of the present invention thus obtained was measured by gel permeation chromatography, the mass average molecular weight was 170,000 or more, and the dispersity indicating the molecular weight distribution, that is, the mass average molecular weight, Z number average molecular weight was , Usually 1.2 to 20.
- the mass average molecular weight is preferably from 2000 to 100,000, more preferably from 2000 to 500,000.
- the degree of dispersion is preferably from 1.2 to 10, more preferably from 1.2 to 5. If the weight average molecular weight is less than 170, sufficient charging may not be obtained. When the degree of dispersion is less than ⁇ .2, sufficient charge may not be obtained.On the other hand, when the degree of dispersion exceeds 20, dispersibility in the binder resin becomes poor, and sufficient charge cannot be obtained. There are cases.
- the polycondensate thus obtained can be used as a negative charge control agent after drying. Further, the polycondensate is preferably recrystallized with an alcohol such as methanol or washed repeatedly to remove methanol-soluble components. From the above, it is preferable that the polycondensate of the present invention is insoluble in alcohol such as methanol at room temperature.
- the negative charge control agent obtained by drying is pale white or pale yellow, and does not affect its hue even when used in color toner. In addition, compatibility and dispersibility when blended into a binder resin as described later are also good.
- the negative charge control agent thus obtained is preferably used in an amount of 0.1 to 10 parts by mass, preferably 1 to 7 parts by mass, based on 100 parts by mass of the binder resin.
- particles having a particle size of 5 to 15 ⁇ , preferably 5 to 10 ⁇ it is possible to obtain a toner having excellent chargeability and chargeability.
- the amount of the negative charge control agent is less than 0.1 part by mass, the chargeability and the rise property of the toner may be insufficient.
- the amount exceeds 10 parts by mass the fixing characteristics of the toner may become insufficient. May decrease.
- binder resin used in the toner examples include a homopolymer of styrene and its substituted product such as polystyrene, poly (p-polystyrene), and polyvinyl toluene; a styrene-p-chlorostyrene copolymer, a styrene-monostyrene.
- a crosslinked resin can also be used.
- an aromatic dibutyl compound such as dibubenzene or diburunaphthalene; for example, ethylene glycol diatalylate, ethylene glycol dimetharate, 1,3-butanediol Carboxylic acid esters having two double bonds such as rudimethacrylate; divinyl compounds such as divinylaniline, dibutyl ether, divinyl sulfide, divinyl sulfone; compounds having three or more butyl groups; Compounds having a possible double bond may be used alone or as a mixture.
- the binder resin may be polyethylene, polypropylene, polymethylene, polyurethane elastomer, ethylene-ethyl acrylate copolymer, ethylene mono-butyl acetate copolymer. It is preferable to use resins such as coalesced resins, ionomer resins, styrene-butadiene copolymers, styrene-isoprene copolymers, linear saturated polyesters, and paraffins.
- the toner optionally contains a colorant as needed.
- the colorant is not particularly limited, and may be carbon black, lamp black, iron black, ultramarine, Nigguchi thin dye, or black dye. Nirimbu-no-ray, Phthalocyanine blue, Phthalocyanen green, Hansaierro G, Rhodamine 6G, Calco oil blue, Chrome yellow, Quinacridone, Benzidine yellow, Rose Bengal, Triarylmethane dye, Monoazo dye, Disazo dye, etc. Can be used alone or as a mixture. Further, the toner may contain additives as needed.
- lubricants such as zinc stearate, abrasives such as cerium oxide and silicon carbide, and fluidity such as aluminum oxide And a conductivity-imparting agent such as carbon black, tin oxide and the like.
- a fluorine-containing polymer fine powder such as polyvinylidene fluoride fine powder may be used from the viewpoint of fluidity, abrasiveness, charge stability and the like.
- a wax-like substance such as low molecular weight polyethylene, low molecular weight polypropylene, microcrystalline wax, carnapa wax, sasol wax, and paraffin wax is used. % May be added to the toner.
- Magnetic raw materials include: magnetite, ⁇ -iron oxide, ferrite, iron oxides such as iron-rich ferrite; metals such as iron, cobalt, and nickel; or these metals and aluminum, cobalt, Examples include metal, lead, magnesium, tin, zinc, antimony, beryllium, bismuth, cadmium, iron / steam, manganese, selenium, titanium, tungsten, and vanadium.
- the method for producing the toner is not particularly limited, and the following methods may be mentioned. After the negative charge control agent, binder resin, colorant, and various additives that are added as needed, are sufficiently mixed in a mixer such as a ball mill, a heat kneader such as a hot roll kneader or an extruder is used.
- a mixer such as a ball mill
- a heat kneader such as a hot roll kneader or an extruder is used.
- a polymerization method in which a colorant and various additives that are added as needed are mixed to form an emulsified suspension, and then polymerized to obtain a toner.
- the toner produced in this way can be used as is for electrophotography, electrostatic recording or electrostatic printing! It can be used to develop an electrostatic latent image, but may be used in combination with a carrier.
- Known carriers can be used as the carrier, and examples thereof include magnetic powders such as iron powder, ferrite powder, and nickel powder, glass beads, and the like, and those obtained by treating the surfaces thereof with a resin.
- the coating on the carrier surface includes styrene-acrylic acid ester copolymer, styrene-methacrylic acid ester copolymer, atrialic acid ester copolymer, methacrylic acid ester copolymer, silicone resin, and fluorine-containing resin.
- Polyamide resin, ionomer resin, polyphenylene sulfide resin and the like can be used alone or in combination.
- such negatively-charged control agents include, as phenols, a specific mononuclear phenolic compound (A) and a specific polynuclear phenolic compound (B) at a specific ratio. Since it contains a polycondensate obtained by the polycondensation reaction of this with an aldehyde, it has good charge build-up properties, can provide sufficient chargeability, and has a good compatibility with the binder resin. It has good solubility and good dispersibility with the binder resin. Such a product can be produced stably. Further, since such a negative charge control agent is pale white or pale yellow, it does not affect the hue of the toner even when used in a color toner. In addition, since the above products do not contain elements such as chromium, they are also environmentally friendly.
- Table 1 shows the degree of dispersion (mass average molecular weight / number average molecular weight) of the obtained product.
- the mass average molecular weight and the number average molecular weight were measured by gel permeation chromatography.
- the detector used was Shodex RI-71 (manufactured by Showa Denko KK), and the columns used were TSKgel G3000Hxl, TSKgel G 2000Hxl and GlMHhr-M (manufactured by Tohsoichi Co., Ltd.). .
- the obtained toner and a carrier (F-150, manufactured by Powdertech) are mixed at a mass ratio of 3: 100, and the mixture is mixed at 20 ° C and 65% RH for a predetermined time (5 minutes, 1 hour, 2 hours). Time) After triboelectric charging, the charge amount was measured using a blow-off powder charge amount measuring device TB-203 (manufactured by Toshiba Chemical Corporation).
- the ratio of the 5-minute charge amount to the 1-hour charge amount was defined as the rise rate.
- the product was obtained in the same manner as in Example 1 except that the amounts of p-t-butylphenol and 2,2,1-bis (4-hydroxyphenyl) pulp were changed as shown in Table 1.
- the degree of dispersion of the product was determined in the same manner as in Example 1.
- the charging property was evaluated in the same manner as in the above (a).
- Example 1 part of the product obtained in Example as a negative charge control agent 100 parts of a polyester resin as a binder resin (acid value 1 OmgKOHZg, hydroxyl value 15 mgKOH / g), and carbon black as a colorant (Mitsubishi Chemical 5 parts of MA # 100 manufactured by Kogyo Co., Ltd. and 4 parts of VISCOL 550 P (registered trademark, manufactured by Sanyo Chemical Industries, Ltd.) are melted and kneaded by Labo Plast Mill (manufactured by Toyo Seiki Seisakusho) and ground by a jet mill. Thereafter, the toner was classified to produce a toner having a particle size of 5 to 15 im.
- the charging property was evaluated in the same manner as in the above (a).
- toner was produced in accordance with the following toner production method (d).
- the toner was white.
- One part of the product obtained in the example was used as a negative charge control agent, and 100 parts of a styrene-acrylic copolymer as a binder resin were melt-kneaded with a Labo Plast Mill (manufactured by Toyo Seiki Seisaku-Sho, Ltd.) and then jet-milled. After pulverization, classification was performed to produce a toner having a particle size of 5 to 15 ⁇ m.
- Example 1 Mononuclear phenol compound (A) p-t-butylphenol (mol) 0.45 0.35 Polynuclear phenol compound (B) 2,2'-bis (4-hydroxyphenyl) 0.032 0.05 propane (Mol)
- the toner containing no colorant of Example 13 has a white hue, and does not adversely affect the hue of the toner even when used in a color toner.
- the negative charge control agent of the present invention comprises, as phenols, a specific mononuclear phenol compound ( ⁇ ) and a specific polynuclear phenol compound ( ⁇ ) in a specific ratio. It contains a polycondensate obtained by polycondensation reaction of this with aldehydes, so it has good charge rising property and provides sufficient chargeability It is possible.
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- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Developing Agents For Electrophotography (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/542,589 US8658339B2 (en) | 2003-01-23 | 2004-01-21 | Negative charge controlling agent and static charge image developing toner using the same, and method for producing the same |
EP04703899A EP1589380B1 (en) | 2003-01-23 | 2004-01-21 | Toner using a negative charge control agent and use of polycondensation product as charge control agent |
DE602004031820T DE602004031820D1 (de) | 2003-01-23 | 2004-01-21 | Toner mit Steuermittel für negative Ladung und Verwendung von Polykondensationsprodukten als Ladungssteuermittel |
JP2005508105A JP3772910B2 (ja) | 2003-01-23 | 2004-01-21 | 負荷電制御剤およびこれを用いた静電荷像現像用トナーおよびその製造方法 |
Applications Claiming Priority (2)
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JP2003-015207 | 2003-01-23 | ||
JP2003015207 | 2003-01-23 |
Publications (3)
Publication Number | Publication Date |
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WO2004066030A1 WO2004066030A1 (ja) | 2004-08-05 |
WO2004066030A2 true WO2004066030A2 (ja) | 2004-08-05 |
WO2004066030A3 WO2004066030A3 (ja) | 2004-10-07 |
Family
ID=32767432
Family Applications (1)
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PCT/JP2004/000495 WO2004066030A2 (ja) | 2003-01-23 | 2004-01-21 | 負荷電制御剤およびこれを用いた静電荷像現象用トナーおよびその製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8658339B2 (ja) |
EP (1) | EP1589380B1 (ja) |
JP (1) | JP3772910B2 (ja) |
KR (1) | KR100675377B1 (ja) |
CN (1) | CN100514199C (ja) |
DE (1) | DE602004031820D1 (ja) |
WO (1) | WO2004066030A2 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009116102A (ja) * | 2007-11-07 | 2009-05-28 | Kao Corp | トナー |
JP2009128651A (ja) * | 2007-11-26 | 2009-06-11 | Kao Corp | トナーの製造方法 |
JP2010049228A (ja) * | 2008-07-23 | 2010-03-04 | Ricoh Co Ltd | トナー及び現像剤、画像形成装置 |
JP2010117383A (ja) * | 2008-11-11 | 2010-05-27 | Ricoh Co Ltd | トナー及び現像剤、画像形成装置 |
JP2010128002A (ja) * | 2008-11-25 | 2010-06-10 | Ricoh Co Ltd | 静電荷像現像用トナー及びその製造方法、並びに該静電荷像現像用トナーを用いた現像剤、画像形成装置及び画像形成方法 |
JP2011053641A (ja) * | 2009-08-03 | 2011-03-17 | Kao Corp | トナー |
JP2012220809A (ja) * | 2011-04-12 | 2012-11-12 | Ricoh Co Ltd | トナーの製造方法 |
WO2017179385A1 (ja) * | 2016-04-13 | 2017-10-19 | Dic株式会社 | ノボラック型樹脂及びレジスト材料 |
JP2018049182A (ja) * | 2016-09-23 | 2018-03-29 | カシオ計算機株式会社 | 電子写真用白色トナー |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7604915B2 (en) * | 2006-08-23 | 2009-10-20 | Xerox Corporation | Toner compositions having magenta pigment |
JP5435770B2 (ja) * | 2009-01-16 | 2014-03-05 | 花王株式会社 | トナー |
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US3851012A (en) * | 1972-08-07 | 1974-11-26 | Union Carbide Corp | Rubber compositions containing a heat hardenable phenolic resin based on a mixture of a dihydroxy diphenyl alkane and a para-substituted alkyl phenol |
US3984940A (en) * | 1973-05-08 | 1976-10-12 | Murray Reich | Degradable plastic |
JPS63266462A (ja) | 1987-04-24 | 1988-11-02 | Ricoh Co Ltd | 電子写真乾式現像剤用トナ− |
JPH0674387B2 (ja) * | 1990-03-06 | 1994-09-21 | 日本製紙株式会社 | 染料分散物 |
US5023315A (en) * | 1990-04-18 | 1991-06-11 | Phillips Peteroleum Company | Process for preparing arylene sulfide polymers |
JP2726745B2 (ja) * | 1990-10-01 | 1998-03-11 | キヤノン株式会社 | 静電荷像現像用トナー |
ES2162837T3 (es) | 1993-01-05 | 2002-01-16 | Kao Corp | Composicion ligante para moldes y metodos de produccion de moldes. |
JP3237467B2 (ja) * | 1995-05-25 | 2001-12-10 | 松下電器産業株式会社 | 全光束測定装置 |
CN1105946C (zh) * | 1996-03-25 | 2003-04-16 | 三洋化成工业株式会社 | 电荷调节剂,调色剂粘合剂组合物和静电复印调色剂 |
US5714568A (en) * | 1996-09-26 | 1998-02-03 | Reichhold Chemicals, Inc. | Methods of preparing polyesters from cycle organic carbonates in the presence alkali metal-containing catalysts |
JPH10104881A (ja) * | 1996-10-02 | 1998-04-24 | Canon Inc | 静電荷像現像用トナー |
JP3478695B2 (ja) * | 1997-02-14 | 2003-12-15 | キヤノン株式会社 | 静電荷像現像用トナー |
EP0863191A3 (en) * | 1997-03-05 | 1999-01-27 | Nippon Paint Co., Ltd. | Raindrop fouling-resistant paint film, coating composition, film-forming method, and coated article |
US5972554A (en) * | 1997-04-30 | 1999-10-26 | Canon Kabushiki Kaisha | Toner for developing electrostatic images |
JP4139456B2 (ja) * | 1997-10-02 | 2008-08-27 | 三菱レイヨン株式会社 | 脱気膜 |
GB9803714D0 (en) * | 1998-02-24 | 1998-04-15 | Cytec Tech Corp | Process for preparing polymers |
JP3799158B2 (ja) * | 1998-04-30 | 2006-07-19 | キヤノン株式会社 | 静電荷像現像用トナー及び画像形成方法 |
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EP1455237B1 (en) * | 2003-03-07 | 2011-05-25 | Canon Kabushiki Kaisha | Toner and two-component developer |
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- 2004-01-21 US US10/542,589 patent/US8658339B2/en active Active
- 2004-01-21 WO PCT/JP2004/000495 patent/WO2004066030A2/ja active IP Right Grant
- 2004-01-21 CN CNB2004800024513A patent/CN100514199C/zh not_active Expired - Lifetime
- 2004-01-21 JP JP2005508105A patent/JP3772910B2/ja not_active Expired - Lifetime
- 2004-01-21 KR KR1020057013358A patent/KR100675377B1/ko active IP Right Grant
- 2004-01-21 EP EP04703899A patent/EP1589380B1/en not_active Expired - Lifetime
- 2004-01-21 DE DE602004031820T patent/DE602004031820D1/de not_active Expired - Lifetime
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009116102A (ja) * | 2007-11-07 | 2009-05-28 | Kao Corp | トナー |
JP2009128651A (ja) * | 2007-11-26 | 2009-06-11 | Kao Corp | トナーの製造方法 |
JP2010049228A (ja) * | 2008-07-23 | 2010-03-04 | Ricoh Co Ltd | トナー及び現像剤、画像形成装置 |
JP2010117383A (ja) * | 2008-11-11 | 2010-05-27 | Ricoh Co Ltd | トナー及び現像剤、画像形成装置 |
JP2010128002A (ja) * | 2008-11-25 | 2010-06-10 | Ricoh Co Ltd | 静電荷像現像用トナー及びその製造方法、並びに該静電荷像現像用トナーを用いた現像剤、画像形成装置及び画像形成方法 |
JP2011053641A (ja) * | 2009-08-03 | 2011-03-17 | Kao Corp | トナー |
JP2012220809A (ja) * | 2011-04-12 | 2012-11-12 | Ricoh Co Ltd | トナーの製造方法 |
WO2017179385A1 (ja) * | 2016-04-13 | 2017-10-19 | Dic株式会社 | ノボラック型樹脂及びレジスト材料 |
JP2018049182A (ja) * | 2016-09-23 | 2018-03-29 | カシオ計算機株式会社 | 電子写真用白色トナー |
Also Published As
Publication number | Publication date |
---|---|
US8658339B2 (en) | 2014-02-25 |
US20060083999A1 (en) | 2006-04-20 |
CN1739069A (zh) | 2006-02-22 |
KR20050100628A (ko) | 2005-10-19 |
DE602004031820D1 (de) | 2011-04-28 |
KR100675377B1 (ko) | 2007-01-30 |
EP1589380A2 (en) | 2005-10-26 |
JPWO2004066030A1 (ja) | 2006-05-18 |
EP1589380B1 (en) | 2011-03-16 |
CN100514199C (zh) | 2009-07-15 |
JP3772910B2 (ja) | 2006-05-10 |
EP1589380A4 (en) | 2008-04-30 |
WO2004066030A3 (ja) | 2004-10-07 |
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