WO2012174919A1 - 打印机的显影剂 - Google Patents

打印机的显影剂 Download PDF

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Publication number
WO2012174919A1
WO2012174919A1 PCT/CN2012/073500 CN2012073500W WO2012174919A1 WO 2012174919 A1 WO2012174919 A1 WO 2012174919A1 CN 2012073500 W CN2012073500 W CN 2012073500W WO 2012174919 A1 WO2012174919 A1 WO 2012174919A1
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Prior art keywords
developer
resin
styrene
copolymer
wax
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PCT/CN2012/073500
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English (en)
French (fr)
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汤付根
任群
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珠海思美亚碳粉有限公司
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Publication of WO2012174919A1 publication Critical patent/WO2012174919A1/zh

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    • 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
    • G03G9/0902Inorganic compounds
    • G03G9/0904Carbon black
    • 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
    • G03G9/08706Polymers of alkenyl-aromatic compounds
    • G03G9/08708Copolymers of styrene
    • G03G9/08711Copolymers of styrene with esters of acrylic or methacrylic acid
    • 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
    • G03G9/08742Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08755Polyesters
    • 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
    • G03G9/08742Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08762Other polymers having oxygen as the only heteroatom in the main chain
    • 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
    • G03G9/08775Natural macromolecular compounds or derivatives thereof
    • G03G9/08782Waxes
    • 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
    • G03G9/08784Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08795Macromolecular 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
    • 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
    • G03G9/08784Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08797Macromolecular 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
    • 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
    • G03G9/0902Inorganic 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
    • G03G9/09733Organic compounds

Definitions

  • the present invention relates to a printer consumable, and more particularly to a developer for a printer.
  • the present invention is based on a Chinese patent application filed on Jun. 23, 2011, filed on Jan. 23, 2011, the content of which is hereby incorporated by reference.
  • Printers are becoming more and more widely used by printers, which typically provide the developer needed for printing during the printing process.
  • the developer cartridge as a consumable, and the packaging bottle for storing the developer are largely discarded, but the discarded developer cartridge, the bottle, and the like have expired or residual developer, and development in these wastes
  • the agent is difficult to recycle and is used in the printer due to impurities or moisture.
  • the developer remaining in the developer cartridge is caused by ordinary polymer resin, and the ordinary polymer resin in the developer is discarded into the soil and water.
  • Environmental pollution also poses a threat to human health.
  • ordinary high polymer resins are difficult to degrade and exist in the environment for a long time, which causes a gradual deterioration of the environment.
  • the technical problem to be solved by the present invention is to provide a developer for a printer which reduces or even does not pollute the environment and is environmentally friendly, in view of the defects in the prior art that the contaminated environment is harmful to human health after the developer is discarded.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a developer for a printer, which is made of the following parts by weight:
  • the polymer resin contains 10 to 100 parts by weight of a degradable biopolymer, and the balance is a common polymer resin.
  • the polymer resin has a glass transition temperature of 50 to 70 ° C, a softening temperature of 90 to 220 ° C, and a viscosity at the start of softening of 1.530 ⁇ 10 4 Pa.s - 1.3 ⁇ 10 7 Pa.s.
  • the glass transition temperature is between 50-60 ° C;
  • the biopolymer is any one of a lactic acid polymer, a polyhydroxyalkanoic acid, a polyhydroxybutyrate, a polyhydroxybutyrate valerate, a polybutyl succinate, and an isosorbide polysuccinate. Or a mixture of any two of them.
  • the general polymer resin may be selected from polystyrene, poly- ⁇ -methylstyrene, chloropolystyrene, styrene-chlorostyrene copolymer, styrene-propylene copolymer, styrene-butadiene copolymer.
  • styrene-vinyl chloride copolymer styrene-vinyl acetate copolymer, styrene-maleic acid copolymer, styrene-acrylate copolymer, styrene-methacrylate copolymer, styrene-acrylate-isobutylene Acid ester copolymer, styrene- ⁇ -chloromethyl acrylate copolymer, styrene-acrylonitrile-acrylate copolymer, styrene-vinyl methyl ether copolymer, polyester resin, epoxy resin, urethane Denatured epoxy resin, silicone denatured epoxy resin, vinyl chloride resin, turpentine denatured maleic acid resin, phenyl resin, polyethylene, polypropylene, ionomer resin, polyurethane resin, silicone resin, ketone At least one of a resin, an ethylene-ethyl acrylate,
  • the colorant is a magnetic colorant or a non-magnetic colorant.
  • the magnetic coloring agent is a black magnetic material, specifically triiron tetroxide, ⁇ -ferric oxide, magnetite powder, zinc iron oxide, strontium iron oxide, calcium iron oxide, strontium oxide, copper iron oxide, At least one of lead oxide iron, nickel oxide iron, lanthanum oxyhydroxide, lanthanum oxyhydroxide, magnesium iron oxide, manganese iron oxide, lanthanum iron oxide, iron powder, cobalt powder, and nickel powder.
  • the magnetic colorant is preferably triiron tetroxide or ⁇ -ferric oxide.
  • the non-magnetic colorant is a black colorant and a colorant, the black colorant is carbon black, and the colorant is at least one of a yellow colorant, a magenta colorant, and a cyan colorant.
  • the release agent includes polyethylene wax, polypropylene wax, microcrystalline wax, paraffin wax, Fischer-Tropsch wax, oxidized polyethylene wax, carnauba wax, montan acid ester wax, deacidified carnauba wax, calcium stearate, At least one of zinc stearate, calcium laurate or magnesium stearate.
  • the release agent is preferably at least one of a polyethylene wax and a polypropylene wax.
  • the charge control agent includes a negative charge charge control agent and a positive charge control agent, and the negative charge charge control agent is a chromium-containing azo dye, a monoazo metal complex or a chelate compound, and a metal-containing salicylic acid compound.
  • the developer further contains a lubricant in an amount of from 0.1 to 4 parts by weight.
  • the lubricant is zinc stearate or polyvinylidene fluoride.
  • the hydrophobic silica has a particle diameter of 5 to 20 nm.
  • the polymer resin in the developer of the present invention contains biopolymers, even all of which are biopolymers, and these biopolymers are degradable, accumulate in the soil after being discarded, and can degrade themselves, to the environment. It does not cause pollution and achieves environmental protection.
  • the biodegradable biopolymer can be made from plants such as corn, soybean, sugar cane, and potato starch. These plant resources absorb carbon dioxide by photosynthesis before they become a raw material for the developer. The amount of carbon dioxide absorbed is equivalent to the amount of carbon dioxide emitted during the incineration of the developer. Therefore, the amount of carbon dioxide on the earth after incineration of the bio-developer It will not increase but maintain balance, which will effectively alleviate the greenhouse effect and produce good environmental benefits. With the recycling of waste paper, waste paper deinking technology has also received more and more attention, and the developer made of biodegradable biopolymer is more easily deinked, and high temperature degradation can be achieved in the presence of water. Can be composted or broken down.
  • the use of polymers extracted from plants as raw materials greatly reduces the dependence on non-renewable resources, so it is a green raw material in the full sense. Further, since the biopolymer has good transparency, it can be used not only for a black developer but also for a color developer.
  • Figure 1 is a comparison diagram of printing effects of the printers according to Embodiments 1-6 of the present invention.
  • the invention discloses a developer for a printer which is made of the following raw materials by weight: polymer resin 100, colorant 5-150, mold release agent 0.1-20, charge control agent 0.1-10, hydrophobic dioxide oxidation silicon 0.1-4.
  • the polymer resin contains 10 to 100 parts by weight of a degradable biopolymer, and the balance is a common polymer resin.
  • the polymer resin includes degradable biopolymers
  • some of the biodegradable biopolymers have a softening temperature lower, and when the softening temperature is lower than 110 ° C, the viscosity during production melting is too low to be processed. Therefore, the biopolymer resin having a lower softening temperature is mixed with other high-softening temperature biopolymer resin, and a general polymer resin such as a polyester resin, a styrene-acrylate polymer resin, etc., so as to start softening.
  • the viscosity is 2.200 ⁇ 10 4 Pa.s or more.
  • the polymer resin of the present invention is required to have a glass transition temperature of 50 to 70 ° C and a softening temperature of 90 to 220 ° C; the viscosity at the start of softening is 1.530 ⁇ 10 4 Pa.s - 1.3 ⁇ 10 7 Pa.s. .
  • the glass transition temperature is between 50 and 60 ° C; this is convenient for processing, so when selecting the raw materials and their ratios, it is necessary to consider that the polymer resin is within the range controlled by the above indexes.
  • the biopolymer is preferably any of a lactic acid polymer, a polyhydroxyalkanoic acid, a polyhydroxybutyrate, a polyhydroxybutyrate valerate, a polybutyl succinate, and an isosorbide polysuccinate. One or a mixture of any two of them.
  • the following examples may optionally achieve at least one of the above substances, and the object of the present invention can be attained.
  • the general polymer resin may be selected from polystyrene, poly- ⁇ -methylstyrene, chloropolystyrene, styrene-chlorostyrene copolymer, styrene-propylene copolymer, styrene-butadiene copolymer.
  • styrene-vinyl chloride copolymer styrene-vinyl acetate copolymer, styrene-maleic acid copolymer, styrene-acrylate copolymer, styrene-methacrylate copolymer, styrene-acrylate-isobutylene Acid ester copolymer, styrene- ⁇ -chloromethyl acrylate copolymer, styrene-acrylonitrile-acrylate copolymer, styrene-vinyl methyl ether copolymer, polyester resin, epoxy resin, urethane Denatured epoxy resin, silicone denatured epoxy resin, vinyl chloride resin, turpentine denatured maleic acid resin, phenyl resin, polyethylene, polypropylene, ionomer resin, polyurethane resin, silicone resin, ketone At least one of a resin, an ethylene-ethyl acrylate,
  • the colorant is a magnetic colorant or a non-magnetic colorant, and the two types of colorants are used for a magnetic developer and a non-magnetic developer, respectively.
  • the magnetic coloring agent is a black magnetic material, specifically triiron tetroxide, ⁇ -ferric oxide, magnetite powder, zinc iron oxide, strontium iron oxide, calcium iron oxide, strontium oxide, copper iron oxide, At least one of lead oxide iron, nickel oxide iron, lanthanum oxyhydroxide, lanthanum oxyhydroxide, magnesium iron oxide, manganese iron oxide, lanthanum iron oxide, iron powder, cobalt powder, and nickel powder.
  • Preferred in the present invention are triiron tetroxide or ⁇ -ferric oxide.
  • the following examples can be optionally substituted with at least one of the above substances, and the object of the present invention can be attained after replacement.
  • the non-magnetic colorant is a black colorant and a colorant, the black colorant is carbon black, and the colorant is at least one of a yellow colorant, a magenta colorant, and a cyan colorant.
  • the yellow colorant specifically selects C.I Pigment Yellow 12, 13, 14, 17, 62, 74, 83, 93, 94, 95, 109, 110, 111, 128, 129, 147 and 168.
  • the magenta colorant specifically selects CI pigment red 2, 3, 5, 6, 7, 23, 48:2, 48:3, 48:4, 57:1, 84:1, 144, 146, 166, 169, 177 , 184, 185, 202, 206, 220, 221, and 254.
  • the cyan colorant specifically selects C.I Pigment Blue 1, 7, 15, 15:1, 15:2, 15:3, 15:4, 60, 62, and 66. These colorants may be used singly or in combination and selected depending on the color, saturation, brightness, weathering resistance and dispersibility of the desired developer. The following examples can be optionally substituted with at least one of the above substances, and the object of the present invention can be attained after replacement.
  • a developer in which a yellow colorant, a magenta colorant, and a cyan colorant, respectively, can be used simultaneously on a color printer.
  • the developer of the present invention may be selected from one, two or more kinds of release agents.
  • the release agent includes polyethylene wax, polypropylene wax, microcrystalline wax, paraffin wax, Fischer-Tropsch wax, oxidized polyethylene wax, carnauba wax, montan acid ester wax, deacidified carnauba wax, calcium stearate, Zinc stearate, calcium laurate or magnesium stearate.
  • Polyethylene waxes and polypropylene waxes are preferred in the present invention. The following examples can be optionally substituted with at least one of the above substances, and the object of the present invention can be attained after replacement.
  • the charge control agent plays a role in regulating and controlling the triboelectric charging of the developer in the developer.
  • the charge control agent includes a negative charge charge control agent and a positive charge control agent, and the negative charge charge control agent is a chromium-containing azo dye, a monoazo metal complex or a chelate compound, and a metal-containing salicylic acid compound.
  • An organometallic complex containing an aromatic hydroxycarboxylic acid or an aromatic dicarboxylic acid; the positive charge controlling agent is aniline black and a modified product thereof, a fatty acid metal salt, a cerium salt containing a quaternary ammonium salt, and a tributyl group Benzylammonium-1-hydroxy-4-naphtholsulfonate or tetrabutylammonium tetrafluoroborate.
  • the following examples can be optionally substituted with at least one of the above substances, and the object of the present invention can be attained after replacement.
  • the release agent is polyethylene wax, polypropylene wax, microcrystalline wax, paraffin wax, Fischer-Tropsch wax, oxidized polyethylene wax, carnauba wax, montan acid ester wax, deacidified carnauba wax, calcium stearate, hard At least one of zinc oleate, calcium laurate, and magnesium stearate. At least one of a polyethylene wax and a polypropylene wax is preferred in the present invention.
  • the following examples can be optionally substituted with at least one of the above substances, and the object of the present invention can be attained after replacement.
  • the hydrophobic silica has a particle diameter of 5 to 20 nm.
  • the developer in addition to the above-mentioned components, can also be added zinc stearate, polyvinylidene fluoride as a lubricant, the weight fraction of the lubricant is 0. 1-4.
  • Embodiment 1 a developer for a printer comprising the following parts by weight of a raw material: lactic acid polymer (PLA) 50, polyester resin 50, carbon black 7, mold release agent (polyethylene wax) 4, charge control agent ( Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylate compound).
  • PVA lactic acid polymer
  • polyester resin 50 polyester resin 50
  • carbon black 7 mold release agent (polyethylene wax) 4
  • charge control agent Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylate compound.
  • the lactic acid polymer (PLA) used had a glass transition temperature of 57 ° C, a softening temperature of 171 ° C, and a viscosity at the start of softening of 1.6 ⁇ 10 6 Pa ⁇ s; the above raw materials were mixed by a Henschel mixer for 5 minutes, and then used for single use.
  • the screw reciprocating extruder melt-kneads the mixed raw materials at 160 ° C, cools them, and then coarsely pulverizes them with a hammer mill, and then pulverizes the coarsely pulverized mixture by a jet type air flow pulverizing classifier. Grading, a black developer masterbatch was obtained.
  • Embodiment 2 a developer for a printer comprising the following parts by weight of a raw material: lactic acid polymer (PLA) 50, polyester resin 50, magenta colorant (CI Pigment Red 2) 7, release agent (polyethylene) Wax) 4, charge control agent (Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylic acid aluminum compound) 2, the above raw materials are used to form a developer mother particle.
  • the above raw materials are used to form a developer mother particle.
  • Embodiment 3 a developer for a printer comprising the following parts by weight of a raw material: lactic acid polymer (PLA) 50, polyester resin 50, yellow colorant (CI Pigment Yellow 12) 7, release agent (polyethylene wax) ) 4, charge control agent (Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylic acid aluminum compound) 2, the above raw materials are used to form a developer mother particle.
  • PPA lactic acid polymer
  • polyester resin 50 polyester resin 50
  • yellow colorant CI Pigment Yellow 12
  • release agent polyethylene wax
  • charge control agent Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylic acid aluminum compound 2
  • the above raw materials are used to form a developer mother particle.
  • Embodiment 4 A developer for a printer comprising the following parts by weight of a raw material: lactic acid polymer (PLA) 50, polyester resin 50, cyan colorant (CI Pigment Blue 1) 7, release agent (polyethylene wax) ) 4, charge control agent (Di-Alkyl-Salicylic Acid Aluminum Compound, 2-alkyl salicylic acid aluminum compound) 2, the above raw materials are used to form a developer mother particle. Weighing 100 parts by weight of the developer mother particles, adding 1.2 parts by weight of hydrophobic silica and 0.2 parts by weight of zinc stearate (the particle size of hydrophobic silica and zinc stearate is the same as in Example 1), The same preparation method as in the above Example 1 was carried out to prepare a developer. A cyan developer 4 having a diameter distribution (MVD) value of 8.3 ⁇ m, a diameter distribution (MPD) value of 6.5 ⁇ m, and a ratio distribution of more than 5 ⁇ m (P>5) of 87% was obtained.
  • Embodiment 5 A developer for a printer comprising the following parts by weight of raw materials: polyisosorbide polysuccinate (PIS) 70, styrene-acrylic polymer resin 30, magnetic black colorant (ferric oxide) 40, a release agent (polypropylene wax) 4, a charge control agent (chromium-containing azo dye CISolvent Violet 21) 2, the above raw materials are made into a developer masterbatch.
  • PIS polyisosorbide polysuccinate
  • styrene-acrylic polymer resin 30, magnetic black colorant (ferric oxide) 40, a release agent (polypropylene wax) 4, a charge control agent (chromium-containing azo dye CISolvent Violet 21) 2
  • PIS polyisosorbide polysuccinate
  • styrene-acrylic polymer resin 30, magnetic black colorant (ferric oxide) 40, a release agent (polypropylene wax) 4, a charge control agent (chromium-containing azo dye CIS
  • the same preparation method as in the above Example 1 was carried out to prepare a developer.
  • the polyisosorbide polysorbate (PIS) polymer resin used therein had a glass transition temperature of 53 ° C, a softening temperature of 158 ° C, and a viscosity at the start of softening of 8.27 ⁇ 10 5 Pa ⁇ s.
  • a magnetic black developer 5 having a diameter distribution (MVD) value of 7.8 ⁇ m, a diameter distribution (MPD) value of 6.3 ⁇ m, and a ratio distribution of more than 5 ⁇ m (P>5) of 86% was obtained.
  • Embodiment 6 A developer for a printer comprising the following parts by weight of a raw material: a lactic acid polymer 100, a magnetic black colorant (40, a release agent (polypropylene wax) 4, a charge control agent (chromium-containing azo) Dye, CISolvent Violet 21) 2, the above raw materials are made into a developer masterbatch. Weigh 100 parts by weight of the developer masterbatch, plus 1.2 parts by weight of hydrophobic silica, and 0.2 parts by weight of zinc stearate (hydrophobic dioxide) The particle size of silicon and zinc stearate was the same as that of Example 1), and the same preparation method as in the above Example 1 was used to prepare a developer.
  • the lactic acid polymer used had a glass transition temperature of 57 ° C and a softening temperature of 165. °C, the viscosity at the start of softening is 5.62 ⁇ 10 5 Pa.s.
  • the volume distribution has a diameter (MVD) of 8.0 ⁇ m, the number distribution has a diameter (MPD) of 6.7 ⁇ m, and the number distribution has a diameter of more than 5 ⁇ m (P>5).
  • the ratio is 87% of the magnetic black developer 6.
  • Example 7 a developer for a printer comprising the following parts by weight of a raw material: polyhydroxyalkanoic acid 80, polyhydroxybutyrate 10, styrene-acrylate polymer 10, magenta colorant (CI Pigment 6) 150.
  • a release agent polypropylene wax
  • a charge control agent negative charge control agent, chromium-containing azo dye CI Solvent Violet 21
  • the above raw materials are used to form a developer mother particle.
  • the mixture of polyhydroxyalkanoic acid, polyhydroxybutyrate and styrene-acrylate polymer used therein has a glass transition temperature of 55 ° C, a softening temperature of 135 ° C, and a viscosity at the onset of softening of 5.26 ⁇ 10 5 Pa.s.
  • 100 parts by weight of the developer mother particles were weighed, and 4 parts by weight of hydrophobic silica and 2 parts by weight of zinc stearate were weighed in the same manner as in the above Example 1 to prepare a developer.
  • the particle size of the hydrophobic silica was 8 nm.
  • Embodiment 8 a developer for a printer comprising the following parts by weight of a raw material: polyhydroxyalkanoic acid 80, polyhydroxybutyrate 10, polyester resin 10, carbon black 70, release agent (Fischer-Tropsch wax) 10 A charge control agent (negative charge control agent, chromium-containing azo dye, CISolvent Violet 21) 5.
  • the above raw materials are used to form a developer mother particle.
  • the mixture of polyhydroxyalkanoic acid, polyhydroxybutyrate and polyester resin used therein has a glass transition temperature of 57 ° C, a softening temperature of 142 ° C, and a viscosity at the onset of softening of 4.28 ⁇ 10 5 Pa.s; 100 parts by weight of the masterbatch, 4 parts by weight of hydrophobic silica, and 4 parts by weight of polyvinylidene fluoride were prepared in the same manner as in the above Example 1 to prepare a developer.
  • the particle size of the hydrophobic silica was 12 nm.
  • Embodiment 9 a developer for a printer comprising the following parts by weight of a raw material: polyhydroxybutyrate valerate 10, styrene-acrylate polymer 90, cyan colorant (CI Pigment Blue 15) 5, demolding (microcrystalline wax) 5, a charge control agent (negative charge control agent, chromium-containing azo dye CISolvent Violet 21) 0.1, the above raw materials are made into a developer masterbatch.
  • a raw material polyhydroxybutyrate valerate 10, styrene-acrylate polymer 90, cyan colorant (CI Pigment Blue 15) 5, demolding (microcrystalline wax) 5, a charge control agent (negative charge control agent, chromium-containing azo dye CISolvent Violet 21) 0.1
  • the mixture of polyhydroxybutyrate valerate and styrene-acrylate polymer used has a glass transition temperature of 53 ° C, a softening temperature of 140 ° C, and a viscosity at the onset of softening of 7.26 ⁇ 10 5 Pa.s; 100 parts by weight of the developer mother particles, 0.1 parts by weight of hydrophobic silica, and 0.1 part by weight of zinc stearate were prepared in the same manner as in the above Example 1 to prepare a developer.
  • the particle size of the hydrophobic silica was 20 nm.
  • Embodiment 10 a developer for a printer comprising the following parts by weight of raw materials: polybutyl succinate 20, polyhydroxybutyrate 30, polyester resin 50, yellow colorant (CI Pigment Yellow 12) 100, A release agent (paraffin) 0.1 and a charge control agent (aniline black) 2, the above raw materials are used to form a developer mother particle. 100 parts by weight of the developer mother particles and 2 parts by weight of hydrophobic silica were weighed, and a developer was prepared in the same manner as in the above Example 1. The particle size of the hydrophobic silica was 15 nm.
  • Embodiment 11 a developer of a printer comprising the following parts by weight of a raw material: lactic acid polymer 40, polyhydroxybutyrate 40, styrene-acrylate polymer 20, magnetic black coloring agent triiron tetroxide 100, Release agent (polyethylene wax) 12, charge control agent (chromium-containing azo dye) C.I.Solvent Violet 21) 8, the above raw materials are made into a developer mother particle. 100 parts by weight of the developer mother particles were weighed, and 3 parts by weight of hydrophobic silica and 0.1 parts by weight of zinc stearate were weighed in the same manner as in the above Example 1 to prepare a developer. The particle size of the hydrophobic silica was 5 nm.
  • HP 2600 color laser printer the developer 1, the developer 2, the developer 3, and the developer 4 of the embodiment 1-4 of the present invention are respectively loaded into the HP
  • the 2600 printer is available in cyan, magenta, yellow, and black toner cartridges.
  • Printing 2,500 pages in a low-temperature, low-humidity environment (temperature 15 ° C, humidity 20%).
  • a normal temperature and humidity environment temperature 25 ° C, humidity 60%
  • the originals used for printing are cyan, magenta, yellow, and black image images each with a 5% image coverage.
  • the magnetic black developer 5 and the magnetic black developer 6 of the inventive examples 5 and 6 were loaded into HP using an HP 1022 laser printer.
  • the toner cartridge of the 1022 printer Printing 2,500 pages in a low-temperature, low-humidity environment (temperature 15 ° C, humidity 20%). Then, continue to install the above toner cartridge, and print 2,500 pages in a high-temperature and high-humidity environment (temperature: 30 ° C, humidity: 80%). Then, the toner cartridge is continuously loaded, and 2,500 pages are printed in a normal temperature and humidity environment (temperature: 25 ° C, humidity: 60%).
  • the original used for printing is a black image with a 5% image coverage.
  • the cyan ID value is 1.0.
  • the magenta ID value is 1.0 or more
  • the yellow ID value is 0.8 or more
  • the black ID value is 1.4 or more.
  • the cyan ID value is between 0.9 and 1.0
  • the magenta ID value is between 0.9 and 1.0
  • the yellow ID value is between 0.7 and 0.8
  • the black ID value is between 1.3 and 1.4.
  • the cyan ID value is between 0.8 and 0.9
  • the magenta ID value is between 0.8 and 0.9
  • the yellow ID value is between 0.6 and 0.7
  • the black ID value is between 1.2 and 1.3.
  • the cyan ID value is 0.8 or less
  • the magenta ID value is 0.8 or less
  • the yellow ID value is 0.6 or less
  • the black ID value is 1.2 or less.
  • the bottom gray value (BG) is obtained by measuring the difference between the value of the blank area on the printing paper and the value of the area covered by the additional paper (the area not subjected to the transfer).
  • BG is between 1.0 and 2.0.
  • BG is between 2.0 and 2.5.

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Abstract

一种打印机的显影剂,其由以下重量份数的原料制成:聚合物树脂100、着色剂5-150、脱模剂0.1-20、电荷控制剂0.1-10、疏水性二氧化硅0.1-4,所述聚合物树脂中含有10-100重量份的可降解的生物高聚物,其余为普通聚合物树脂。

Description

打印机的显影剂 技术领域
本发明涉及一种打印机耗材,尤其涉及一种打印机的显影剂。本发明基于申请日为2011年06月23日、申请号为201110179620.2的中国发明专利申请,该申请的内容作为与本发明密切相关的参考文献引入本文。
背景技术
打印机越来越广泛地为人们所使用,打印机通常由显影剂盒提供打印过程中需要的显影剂。
技术问题
随着打印机的大量使用,作为耗材的显影剂盒、及其保存显影剂的包装瓶大量丢弃,然而废弃的显影剂盒、包装瓶等存有过期或残余的显影剂,这些废弃物中的显影剂因混有杂质或受潮等因素很难再回收并用于打印机,显影剂盒残留的显影剂由于采用普通高聚物树脂,丢弃后显影剂中的普通高聚物树脂进入土壤和水体,会造成环境污染,也相应造成对人体健康的威胁。并且普通的高聚物树脂难以降解,长期存在于环境中,会造成环境的逐步恶化。
技术解决方案
本发明要解决的技术问题在于,针对现有技术中显影剂废弃后污染环境危害人体健康的缺陷,提供一种减少甚至不对环境产生污染、环保的打印机的显影剂。
本发明解决其技术问题所采用的技术方案是:一种打印机的显影剂,是由以下重量份数的原料制成:
聚合物树脂 100
着色剂 5-150
脱模剂 0.1-20
电荷控制剂 0.1-10
疏水性二氧化硅 0.1-4;
所述聚合物树脂中含有10-100重量份的可降解的生物高聚物,其余为普通聚合物树脂。
所述聚合物树脂的玻璃转化温度为50-70℃,软化温度为90-220℃;软化开始时的粘度为1.530×104Pa.s-1.3×107 Pa.s。优选玻璃转化温度在50-60℃之间;
所述的生物高聚物为乳酸聚合物、聚羟基烷酸、聚羟基丁酸酯、聚羟基丁酸戊酸酯、聚丁二酸丁酯、聚丁二酸异山梨醇酯中的任意一种或它们中任意两种的混合物。
所述普通聚合物树脂可以选择聚苯乙烯、聚-α-甲基苯乙烯、氯聚苯乙烯、苯乙烯-氯苯乙烯共聚物、苯乙烯-丙烯共聚物、苯乙烯-丁二烯共聚物、苯乙烯-氯乙烯共聚物、苯乙烯-醋酸乙烯共聚物、苯乙烯-马来酸共聚物、苯乙烯-丙烯酸酯共聚物、苯乙烯-异丁烯酸酯共聚物、苯乙烯-丙烯酸酯-异丁烯酸酯共聚物、苯乙烯-α-氯丙烯酸甲酯共聚物、苯乙烯-丙烯腈-丙烯酸酯共聚物、苯乙烯-乙烯甲基醚共聚物、聚酯树脂、环氧树脂、氨基甲酸乙酯变性环氧树脂、硅酮变性环氧树脂、氯乙烯树脂、松脂变性马来酸树脂、苯基树脂、聚乙烯、聚丙烯、离聚物树脂、聚氨基甲酸乙酯树脂、硅酮树脂、酮树脂、乙烯-丙烯酸乙酯共聚物、二甲苯树脂、聚乙烯醇缩丁醛树脂、萜烯树脂、酚醛树脂、脂肪族或脂环烃树脂中的至少一种。
所述着色剂为磁性着色剂或非磁性着色剂。
所述磁性着色剂为黑色的磁性材料,具体为四氧化三铁、γ-三氧化二铁、磁铁矿粉末、氧化锌铁、氧化钇铁、氧化钙铁、氧化钆铁、氧化铜铁、氧化铅铁、氧化镍铁、氧化钕铁、氧化钡铁、氧化镁铁、氧化锰铁、氧化镧铁、铁粉、钴粉和镍粉中的至少一种。所述磁性着色剂优选四氧化三铁或γ-三氧化二铁。
所述的非磁性着色剂为黑色着色剂和彩色着色剂,所述黑色着色剂为碳黑,所述彩色着色剂为黄色着色剂、洋红色着色剂以及青色着色剂中的至少一种。
所述脱模剂包括是聚乙烯蜡、聚丙烯蜡、微晶蜡、石蜡、费托蜡、氧化聚乙烯蜡、巴西棕榈蜡、褐煤酸酯蜡、脱酸巴西棕榈蜡、硬脂酸钙、硬脂酸锌、月桂酸钙或硬脂酸镁中的至少一种。所述脱模剂优选聚乙烯蜡和聚丙烯蜡中的至少一种。
所述电荷控制剂包括负电性电荷控制剂和正电荷控制剂,所述负电性电荷控制剂为含铬的偶氮染料、单偶氮金属络合物或螯合化合物、含金属的水杨酸化合物、含有芳香族羟基羧酸或芳香族二羧酸的有机金属络合物;所述正电荷控制剂为苯胺黑及其改性产物、脂肪酸金属盐、含有季胺盐的鎓盐、三丁基苯甲基铵-1-羟基-4-萘酚磺酸盐或四丁基铵四氟硼酸盐。
所述显影剂中还含有重量份数为0.1-4的润滑剂。所述润滑剂为硬脂酸锌或聚偏氟乙烯。
所述疏水性二氧化硅的粒径为5-20nm。
有益效果
本发明显影剂中的聚合物树脂中含有生物高聚物,甚至全部是生物高聚物,而这些生物高聚物是可降解的,在被废弃后堆积在土壤中,能自行降解,对环境不会产生污染,实现了环保。
可降解的生物高聚物可以是玉米、大豆、甘蔗、马铃薯淀粉等植物为原材料制成的。这些植物类资源在成为显影剂原料之前会通过光合作用吸收二氧化碳,其二氧化碳吸收量与显影剂进行焚烧处理过程中产生的二氧化碳排放量相当,所以对生物显影剂进行焚烧处理后地球上的二氧化碳量不会增加而是保持平衡,这将有效缓解温室效应,产生良好的环境效益。伴随着废纸回收利用,废纸脱墨技术也越来越受到重视,而可降解的生物高聚物制成的显影剂更容易脱墨,在有水的环境下即可实现高温降解,还可以堆肥或者分解。另一方面,使用从植物中提取的聚合物作为原材料,大大减少了对不可再生资源石油的依赖,因此是完全意义上的绿色环保原料。另外由于生物高聚物的透明性较好,不仅可以用于黑色显影剂,同样可以用在彩色显影剂中。
附图说明
图1是打印机采用本发明实施例1-6的打印效果对比表。
本发明的实施方式
本发明公开一种打印机的显影剂,是由以下重量份数的原料制成:聚合物树脂100、着色剂5-150、脱模剂0.1-20、电荷控制剂0.1-10、疏水性二氧化硅 0.1-4。所述聚合物树脂中含有10-100重量份的可降解的生物高聚物,其余为普通聚合物树脂。
由于聚合物树脂包括可降解的生物高聚物,其中一些可降解的生物高聚物的软化温度较低,当软化温度低于110℃时,导致生产熔融过程中粘度过低,难以加工。因此会将软化温度较低的生物高聚物树脂与其它高软化温度的生物高聚物树脂、以及普通聚合物树脂如聚酯树脂、苯乙烯-丙烯酸酯聚合物树脂等混用,使开始软化时粘度在2.200×104Pa.s以上 。因此,对于本发明的聚合物树脂,要求其玻璃转化温度为50-70℃,软化温度为90-220℃;软化开始时的粘度为1.530×104Pa.s-1.3×107 Pa.s。优选玻璃转化温度在50-60℃之间;这样才能便于加工,因此在选择原料及其配比时,需要考虑将聚合物树脂达到上述指标控制的范围内。
所述的生物高聚物优选为乳酸聚合物、聚羟基烷酸、聚羟基丁酸酯、聚羟基丁酸戊酸酯、聚丁二酸丁酯、聚丁二酸异山梨醇酯中的任意一种或它们中任意两个的混合物。以下实施例可以任选上述物质中的至少一种,都可以达到本发明目的。
所述普通聚合物树脂可以选择聚苯乙烯、聚-α-甲基苯乙烯、氯聚苯乙烯、苯乙烯-氯苯乙烯共聚物、苯乙烯-丙烯共聚物、苯乙烯-丁二烯共聚物、苯乙烯-氯乙烯共聚物、苯乙烯-醋酸乙烯共聚物、苯乙烯-马来酸共聚物、苯乙烯-丙烯酸酯共聚物、苯乙烯-异丁烯酸酯共聚物、苯乙烯-丙烯酸酯-异丁烯酸酯共聚物、苯乙烯-α-氯丙烯酸甲酯共聚物、苯乙烯-丙烯腈-丙烯酸酯共聚物、苯乙烯-乙烯甲基醚共聚物、聚酯树脂、环氧树脂、氨基甲酸乙酯变性环氧树脂、硅酮变性环氧树脂、氯乙烯树脂、松脂变性马来酸树脂、苯基树脂、聚乙烯、聚丙烯、离聚物树脂、聚氨基甲酸乙酯树脂、硅酮树脂、酮树脂、乙烯-丙烯酸乙酯共聚物、二甲苯树脂、聚乙烯醇缩丁醛树脂、萜烯树脂、酚醛树脂、脂肪族或脂环烃树脂中的至少一种。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。
所述着色剂为磁性着色剂或非磁性着色剂,这两类着色剂分别用于磁性显色剂和非磁性显色剂。
所述磁性着色剂为黑色的磁性材料,具体为四氧化三铁、γ-三氧化二铁、磁铁矿粉末、氧化锌铁、氧化钇铁、氧化钙铁、氧化钆铁、氧化铜铁、氧化铅铁、氧化镍铁、氧化钕铁、氧化钡铁、氧化镁铁、氧化锰铁、氧化镧铁、铁粉、钴粉和镍粉中的至少一种。本发明优选四氧化三铁或γ-三氧化二铁。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。
所述的非磁性着色剂为黑色着色剂和彩色着色剂,所述黑色着色剂为碳黑,所述彩色着色剂为黄色着色剂、洋红色着色剂以及青色着色剂中的至少一种。黄色着色剂具体选择C.I颜料黄12、13、14、17、62、74、83、93、94、95、109、110、111、128、129、147和168。洋红色着色剂具体选择C.I颜料红2、3、5、6、7、23、48:2、48:3、48:4、57:1、84:1、144、146、166、169、177、184、185、202、206、220、221和254。青色着色剂具体选择C.I颜料蓝1、7、15、15:1、15:2、15:3、15:4、60、62和66。这些着色剂可以单独使用或组合使用并根据所需要显影剂的颜色、饱和度、亮度、抗风化能力和可分散性进行选择。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。其中黄色着色剂、洋红色着色剂以及青色着色剂分别制成的显影剂可以同时用于一个彩色打印机上。
本发明的显影剂可以选用一种、两种或两种以上的脱模剂。以改进显影剂的定影性能,增强显影剂从装置的各个元件的释放能力。所述脱模剂包括是聚乙烯蜡、聚丙烯蜡、微晶蜡、石蜡、费托蜡、氧化聚乙烯蜡、巴西棕榈蜡、褐煤酸酯蜡、脱酸巴西棕榈蜡、硬脂酸钙、硬脂酸锌、月桂酸钙或硬脂酸镁。本发明优选聚乙烯蜡和聚丙烯蜡。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。
电荷控制剂在显影剂中起着调节和控制显影剂摩擦带电的性能。所述电荷控制剂包括负电性电荷控制剂和正电荷控制剂,所述负电性电荷控制剂为含铬的偶氮染料、单偶氮金属络合物或螯合物、含金属的水杨酸化合物、含有芳香族羟基羧酸或芳香族二羧酸的有机金属络合物;所述正电荷控制剂为苯胺黑及其改性产物、脂肪酸金属盐、含有季胺盐的鎓盐、三丁基苯甲基铵-1-羟基-4-萘酚磺酸盐或四丁基铵四氟硼酸盐。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。
所述脱模剂为聚乙烯蜡、聚丙烯蜡、微晶蜡、石蜡、费托蜡、氧化聚乙烯蜡、巴西棕榈蜡、褐煤酸酯蜡、脱酸巴西棕榈蜡、硬脂酸钙、硬脂酸锌、月桂酸钙、硬脂酸镁中的至少一种。本发明优选聚乙烯蜡和聚丙烯蜡中的至少一种。以下实施例都可以任意由上述物质中的至少一种替换,替换后都可以达到本发明目的。
所述疏水性二氧化硅的粒径为5-20nm。
显影剂除了上述组分外,还可以增加硬脂酸锌、聚偏氟乙烯作为润滑剂,润滑剂的重量份数为0. 1-4。
实施例1,一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物(PLA)50、聚酯树脂50、碳黑7、脱模剂(聚乙烯蜡)4、电荷控制剂(Di-Alkyl-Salicylic Acid Aluminum Compound,2-烷基水杨酸铝化合物)2。
采用的乳酸聚合物(PLA)的玻璃转化温度为57℃, 软化温度为171℃,软化开始时的粘度为1.6×106 Pa.s ;将上述原材料用Henschel混合机混合5分钟,然后用单螺杆往复式挤出机在160℃下对混合好的原材料进行熔融混炼,冷却后用锤式粉碎机对进行粗粉碎,再用喷射式气流粉碎分级机对粗粉碎后的混合物进行微粉碎和分级,得到黑色显影剂母粒。
黑色显影剂母粒100重量份、疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(添加剂),其中疏水性二氧化硅的粒径为14nm,硬脂酸锌的粒径为100nm。用Henschel混合机将上述原材料混合5分钟,然后用超声波振动筛对混合物进行过筛。得到体积分布中直径(MVD)值为8.0μm,数目分布中直径(MPD)值为6.5μm,数目分布中大于5μm(P>5)的比例为86%的黑色显影剂1。
实施例2,一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物(PLA)50、聚酯树脂50、洋红色着色剂(C.I颜料红2)7、脱模剂(聚乙烯蜡)4、电荷控制剂(Di-Alkyl-Salicylic Acid Aluminum Compound,2-烷基水杨酸铝化合物)2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(疏水性二氧化硅、硬脂酸锌的粒径同实施例1),采用与上述实施例1相同的制备方法,制成显影剂。得到体积分布中直径(MVD)值为8.1μm,数目分布中直径(MPD)值为6.5μm,数目分布中大于5μm(P>5)的比例为87%的洋红色显影剂2。
实施例3,一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物(PLA)50、聚酯树脂50、黄色着色剂(C.I颜料黄12)7、脱模剂(聚乙烯蜡)4、电荷控制剂(Di-Alkyl-Salicylic Acid Aluminum Compound,2-烷基水杨酸铝化合物)2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(疏水性二氧化硅、硬脂酸锌的粒径同实施例1),采用与上述实施例1相同的制备方法,制成显影剂。得到体积分布中直径(MVD)值为8.2μm,数目分布中直径(MPD)值为6.4μm,数目分布中大于5μm(P>5)的比例为82%的黄色显影剂3。
实施例4、一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物(PLA)50、聚酯树脂50、青色着色剂(C.I颜料蓝1)7、脱模剂(聚乙烯蜡)4、电荷控制剂(Di-Alkyl-Salicylic Acid Aluminum Compound,2-烷基水杨酸铝化合物)2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(疏水性二氧化硅、硬脂酸锌的粒径同实施例1),采用与上述实施例1相同的制备方法,制成显影剂。得到体积分布中直径(MVD)值为8.3μm,数目分布中直径(MPD)值为6.5μm,数目分布中大于5μm(P>5)的比例为87%的青色显影剂4。
实施例5、一种打印机的显影剂,包括以下重量份数的原料:聚丁二酸异山梨醇酯(PIS)70、苯乙烯-丙烯酸聚合物树脂30、磁性黑色着色剂(四氧化三铁)40、脱模剂(聚丙烯蜡)4、电荷控制剂(含铬的偶氮染料 C.I.Solvent Violet 21)2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(疏水性二氧化硅、硬脂酸锌的粒径同实施例1),采用与上述实施例1相同的制备方法,制成显影剂。其中所采用的聚丁二酸异山梨醇酯(PIS)聚合物树脂的玻璃转化温度为53℃, 软化温度为158℃,软化开始时的粘度为8.27×105 Pa.s。得到体积分布中直径(MVD)值为7.8μm,数目分布中直径(MPD)值为6.3μm,数目分布中大于5μm(P>5)的比例为86%的磁性黑色显影剂5。
实施例6、一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物100、磁性黑色着色剂(40、脱模剂(聚丙烯蜡)4、电荷控制剂(含铬的偶氮染料,C.I.Solvent Violet 21) 2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅1.2重量份、硬脂酸锌0.2重量份(疏水性二氧化硅、硬脂酸锌的粒径同实施例1),采用与上述实施例1相同的制备方法,制成显影剂。其中所采用的乳酸聚合物的玻璃转化温度为57℃, 软化温度为165℃,软化开始时的粘度为5.62×105 Pa.s。得到体积分布中直径(MVD)值为8.0μm,数目分布中直径(MPD)值为6.7μm,数目分布中大于5μm(P>5)的比例为87%的磁性黑色显影剂6。
实施例7,一种打印机的显影剂,包括以下重量份数的原料:聚羟基烷酸80、聚羟基丁酸酯10、苯乙烯-丙烯酸酯聚合物10、洋红色着色剂(C.I颜料6)150、脱模剂(聚丙烯蜡)20、电荷控制剂(负电电荷控制剂,含铬的偶氮染料C.I. Solvent Violet 21) 10,上述原料制成显影剂母粒。其中采用的聚羟基烷酸、聚羟基丁酸酯和苯乙烯-丙烯酸酯聚合物的混合物的玻璃转化温度为55℃, 软化温度为135℃,软化开始时的粘度为 5.26×105Pa.s ;称取显影剂母粒100重量份,加上疏水性二氧化硅4重量份、硬脂酸锌2重量份采用与上述实施例1相同的制备方法,制成显影剂。疏水性二氧化硅的粒径为8nm。
实施例8,一种打印机的显影剂,包括以下重量份数的原料:聚羟基烷酸80、聚羟基丁酸酯10、聚酯树脂10、碳黑70、脱模剂(费托蜡)10、电荷控制剂(负电电荷控制剂,含铬的偶氮染料, C.I.Solvent Violet 21) 5,上述原料制成显影剂母粒。其中采用的聚羟基烷酸、聚羟基丁酸酯和聚酯树脂的混合物的玻璃转化温度为57℃, 软化温度为142℃,软化开始时的粘度为4.28×105Pa.s ;称取显影剂母粒100重量份,加上疏水性二氧化硅4重量份、聚偏氟乙烯4重量份采用与上述实施例1相同的制备方法,制成显影剂。疏水性二氧化硅的粒径为12nm。
实施例9,一种打印机的显影剂,包括以下重量份数的原料:聚羟基丁酸戊酸酯10、苯乙烯-丙烯酸酯聚合物90、青色着色剂(C.I颜料蓝15)5、脱模剂(微晶蜡)5、电荷控制剂(负电电荷控制剂,含铬的偶氮染料 C.I.Solvent Violet 21)0.1,上述原料制成显影剂母粒。其中采用的聚羟基丁酸戊酸酯和苯乙烯-丙烯酸酯聚合物的混合物的玻璃转化温度为53℃,软化温度为140℃,软化开始时的粘度为7.26×105Pa.s ;称取显影剂母粒100重量份,加上疏水性二氧化硅0.1重量份、硬脂酸锌0.1重量份采用与上述实施例1相同的制备方法,制成显影剂。疏水性二氧化硅的粒径为20nm。
实施例10,一种打印机的显影剂,包括以下重量份数的原料:聚丁二酸丁酯20、聚羟基丁酸酯30、聚酯树脂50、黄色着色剂(C.I颜料黄12)100、脱模剂(石蜡)0.1、电荷控制剂(苯胺黑)2,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅2重量份,采用与上述实施例1相同的制备方法,制成显影剂。疏水性二氧化硅的粒径为15nm。
实施例11,一种打印机的显影剂,包括以下重量份数的原料:乳酸聚合物40、聚羟基丁酸酯40、苯乙烯-丙烯酸酯聚合物20、磁性黑色着色剂四氧化三铁100、脱模剂(聚乙烯蜡)12、电荷控制剂(含铬的偶氮染料 C.I.Solvent Violet 21)8,上述原料制成显影剂母粒。称取显影剂母粒100重量份,加上疏水性二氧化硅3重量份、硬脂酸锌0.1重量份采用与上述实施例1相同的制备方法,制成显影剂。疏水性二氧化硅的粒径为5nm。
工业实用性
本发明显影剂的使用效果评价,参见图1:
使用HP 2600彩色激光打印机,将本发明中实施例1-4的显影剂1、显影剂2、显影剂3、显影剂4分别装进HP 2600打印机的青色、洋红色、黄色、黑色碳粉盒中。在低温低湿的环境(温度15℃,湿度20%)下进行打印2500页。然后,继续装上上述四个碳粉盒,在高温高湿的环境(温度30℃,湿度80%)下进行打印2500页。然后,继续装上上述四个碳粉盒,在常温常湿的环境(温度25℃,湿度60%)下进行打印2500页。打印使用的原稿为青色、洋红色、黄色、黑色的图像覆盖率各为5%的文字图像。
使用HP 1022激光打印机,将本发明实施例5、6中的磁性黑色显影剂5、磁性黑色显影剂6装进HP 1022打印机的粉盒中。在低温低湿的环境(温度15℃,湿度20%)下进行打印2500页。然后,继续装上上述碳粉盒,在高温高湿的环境(温度30℃,湿度80%)下进行打印2500页。然后,继续装上上述碳粉盒,在常温常湿的环境(温度25℃,湿度60%)下进行打印2500页。打印使用的原稿为黑色的图像覆盖率为5%的文字图像。
图像评价说明:
1.色浓度(ID)
使用色密度仪(D19C,GretagMacbeth Co., Ltd.)测量稿件上的青色、洋红色、黄色、黑色区域的色密度值(ID)。
A表示效果良好:青色的ID值在1.0 以上,洋红色的ID值在1.0以上,黄色的ID值在0.8以上,黑色的ID值在1.4以上。
B表示效果较好:青色的ID值在0.9-1.0之间,洋红色的ID值在0.9-1.0之间,黄色的ID值在0.7-0.8,黑色的ID值在1.3-1.4。
C表示效果较差:青色的ID值在0.8-0.9之间,洋红色的ID值在0.8-0.9之间,黄色的ID值在0.6-0.7,黑色的ID值在1.2-1.3。
D表示效果很差:青色的ID值在0.8以下,洋红色的ID值在0.8以下,黄色的ID值在0.6以下,黑色的ID值在1.2以下。
2.底灰(BG)
通过使用灰度仪(Model 577 ,PHOTOVOLT Co., Ltd.)测量打印纸上空白区域的值与被另外的纸张覆盖的区域(没有经过转印的区域)的值的差值来获得底灰值(BG)。
A表示效果良好:BG在1.0以下。
B表示效果较好:BG在1.0-2.0之间。
C表示效果较差:BG在2.0-2.5之间。
D表示效果很差:BG在2.5以上。
从图1可知:实施例1-6中显影剂的色浓度、底灰测试结果都在良好以上,说明本发明利用生物高聚物作为原料生产的显影剂,其打印质量与现有技术中不采用生物高聚物的普通显影剂性能相当,完全可以替代现有显影剂在打印机上使用。

Claims (10)

  1. 一种打印机的显影剂,其特征在于,是由以下重量份数的原料制成:
    聚合物树脂 100
    着色剂 5-150
    脱模剂 0.1-20
    电荷控制剂 0.1-10
    疏水性二氧化硅 0.1-4;
    所述聚合物树脂中含有10-100重量份的可降解的生物高聚物,其余为普通聚合物树脂。
  2. 根据权利要求1所述的打印机的显影剂,其特征在于,所述聚合物树脂的玻璃转化温度为50-70℃,软化温度为90-220℃;软化开始时的粘度为1.530×104Pa.s-1.300×107 Pa.s。
  3. 根据权利要求1所述的打印机的显影剂,其特征在于,所述的生物高聚物为乳酸聚合物、聚羟基烷酸、聚羟基丁酸酯、聚羟基丁酸戊酸酯、聚丁二酸丁酯、聚丁二酸异山梨醇酯中的任意一种或它们中任意两种的混合物 。
  4. 根据权利要求1所述的打印机的显影剂,其特征在于,所述普通聚合物树脂选择聚苯乙烯、聚-α-甲基苯乙烯、氯聚苯乙烯、苯乙烯-氯苯乙烯共聚物、苯乙烯-丙烯共聚物、苯乙烯-丁二烯共聚物、苯乙烯-氯乙烯共聚物、苯乙烯-醋酸乙烯共聚物、苯乙烯-马来酸共聚物、苯乙烯-丙烯酸酯共聚物、苯乙烯-异丁烯酸酯共聚物、苯乙烯-丙烯酸酯-异丁烯酸酯共聚物、苯乙烯-α-氯丙烯酸甲酯共聚物、苯乙烯-丙烯腈-丙烯酸酯共聚物、苯乙烯-乙烯甲基醚共聚物、聚酯树脂、环氧树脂、氨基甲酸乙酯变性环氧树脂、硅酮变性环氧树脂、氯乙烯树脂、松脂变性马来酸树脂、苯基树脂、聚乙烯、聚丙烯、离聚物树脂、聚氨基甲酸乙酯树脂、硅酮树脂、酮树脂、乙烯-丙烯酸乙酯共聚物、二甲苯树脂、聚乙烯醇缩丁醛树脂、萜烯树脂、酚醛树脂、脂肪族或脂环烃树脂中的至少一种。
  5. 根据权利要求1所述的打印机的显影剂,其特征在于,所述着色剂为磁性着色剂或非磁性着色剂。
  6. 根据权利要求5所述的打印机的显影剂,其特征在于,所述磁性着色剂为四氧化三铁、γ-三氧化二铁、磁铁矿粉末、氧化锌铁、氧化钇铁、氧化钙铁、氧化钆铁、氧化铜铁、氧化铅铁、氧化镍铁、氧化钕铁、氧化钡铁、氧化镁铁、氧化锰铁、氧化镧铁、铁粉、钴粉和镍粉中的至少一种。
  7. 根据权利要求5所述的打印机的显影剂,其特征在于,所述的非磁性着色剂为黑色着色剂和彩色着色剂,所述黑色着色剂为碳黑,所述彩色着色剂为黄色着色剂、洋红色着色剂以及青色着色剂中的至少一种。
  8. 根据权利要求1所述的打印机的显影剂,其特征在于,所述脱模剂包括是聚乙烯蜡、聚丙烯蜡、微晶蜡、石蜡、费托蜡、氧化聚乙烯蜡、巴西棕榈蜡、褐煤酸酯蜡、脱酸巴西棕榈蜡、硬脂酸钙、硬脂酸锌、月桂酸钙、硬脂酸镁中的至少一种。
  9. 根据权利要求1所述的打印机的显影剂,其特征在于,所述电荷控制剂包括负电性电荷控制剂和正电荷控制剂;所述负电性电荷控制剂为含铬的偶氮染料、单偶氮金属络合物或螯合化合物、含金属的水杨酸化合物、含有芳香族羟基羧酸或芳香族二羧酸的有机金属络合物;所述正电荷控制剂为苯胺黑及其改性产物、脂肪酸金属盐、含有季胺盐的鎓盐、三丁基苯甲基铵-1-羟基-4-萘酚磺酸盐或四丁基铵四氟硼酸盐。
  10. 根据权利要求1-9任意一项所述的打印机的显影剂,其特征在于,所述显影剂中还含有重量份数为0.1-4的润滑剂。
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