WO2004063297A1 - 中芯式筆記具用水性顔料インキ組成物 - Google Patents
中芯式筆記具用水性顔料インキ組成物 Download PDFInfo
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- WO2004063297A1 WO2004063297A1 PCT/JP2003/016904 JP0316904W WO2004063297A1 WO 2004063297 A1 WO2004063297 A1 WO 2004063297A1 JP 0316904 W JP0316904 W JP 0316904W WO 2004063297 A1 WO2004063297 A1 WO 2004063297A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/16—Writing inks
Definitions
- the present invention relates to an aqueous pigment ink composition for a core-type writing instrument. More specifically, the present invention relates to a water-based pigment ink composition for a core-format writing instrument, which has a pastel tone on white paper and has no problems such as ink leakage and shading of the handwriting.
- Patent Document 1 Japanese Patent Publication No. 08-009703
- Patent Document 2 Patent Publication No. 08-009704
- Such an aqueous pigment ink composition for a pastel writing instrument uses a white inorganic pigment such as titanium oxide or white resin particles in order to give a pastel tone (handwriting is opaque).
- An object of the present invention is to provide an aqueous pigment ink composition for a writing instrument that overcomes the above-mentioned drawbacks of dispersion stability over time and ink outflow in a core-type writing instrument and that can obtain pastel-like handwriting. It is. Disclosure of the invention
- the present invention relates to an aqueous pigment ink composition for a core-type writing instrument which does not contain a white inorganic pigment or white resin particles as a coloring material, wherein the pigment is 0.5 to 7% by weight based on the total amount of the ink, and the water-soluble resin is 2 to 2%. 10% by weight and viscosity Is 3.5 to 10 mPa's, the aqueous pigment ink composition for a core-type writing instrument.
- the viscosity in the present invention is measured using an ELD viscometer, and is a value measured at 20 ° C. and 50 rpm using a 3 ° 14 ′ cone rotor.
- the white inorganic pigment or the pigment other than the white resin particles is one or two or more selected from quinacrid red, DPP red, phthalocyanine pnoray, phthalocyanine lean, azoyello, disazoyello.
- the use of the water-based pigment ink composition for a core writing instrument described in 1 has an effect of good light fastness.
- the aqueous solution for a core-type writing instrument according to claim 1 or 2, wherein the water-soluble resin is one or more selected from acrylic acid resin, styrene-acrylic acid resin, and styrene-maleic acid resin. It has been found that the pigment ink composition has an effect of further improving the dispersion stability.
- the aqueous pigment ink composition for a core-type writing instrument of the present invention does not contain a white inorganic pigment or a white resin particle as a coloring agent, and a pigment other than the white inorganic pigment or the white resin particle is 0.5 to the total amount of the ink.
- a pastel tone can be obtained.
- the content of the water-soluble resin is less than 2% by weight as in the conventional case, the viscosity of the ink is about 2 mPa ⁇ 5, and there is a problem that ink drop and dispersion stability are poor.
- the above problem was solved by increasing the mixing ratio of the water-soluble resin to 2 to 10% by weight as compared with the conventional one, and adjusting the ink viscosity to 3.5 to 10 mPas.
- At least one selected from quinacridone red, DPP red, phthalocyanine green, phthalocyanine green, azo yellow, and disazo yellow is contained as the coloring material.
- at least one selected from quinacridone red, DPP red, phthalocyanine bunoli, phthalocyanine green, azoyelloh, jisazoyelo power contains at least 0.1% by weight to 7% by weight based on the total amount of the composition. It is preferred that
- the water-soluble resin is at least one kind or two or more kinds selected from an acrylic acid resin, a styrene-acrylic acid resin, and a styrene-maleic acid resin.
- the core-type aqueous pigment ink composition for a writing instrument of the present invention is a core-type aqueous pigment-ink composition for a writing instrument which does not contain a white inorganic pigment or a white resin particle as a coloring material, and comprises a white inorganic pigment or a white resin.
- the pigment other than the particles is 0.5 to 7% by weight
- the water-soluble resin is 2 to 10% by weight
- the viscosity is 3.5 to 10 mPa's based on the total amount of the ink.
- the aqueous pigment ink composition for a core-type writing instrument characterized in that the dispersion stability with time and the pastel tone can be obtained.
- colorant used in the present invention ordinary organic pigments can be used.
- Monoazo pigments (mononaphthol type, naphthol AS type, acetoacetate acrylamide type, pyrazo acid type) which are insoluble azo pigments as azo pigments can be used.
- Mouth-based acetates Alinide acetates, Hansa-yellows, First toyellows) and disazos (excluding condensed azo pigments) (acetyl acetates, allylamides, pyrazones) and azo lakes (soluble Azo pigments) (] 3-naphthol type,] 3-oxinaphthoic acid type (BON acid type), naphthol AS type, acetoacetate arylide type), condensed azo pigments, chelated azo pigments
- the polycyclic pigments include phthalocyanine-based, anthraquinone-based (sulene-based) (bat dye-based, chelated), and perylene-based perinone-based, indigo- and thioindigo-based pigments.
- Pigments such as cridone, dioxazine, isoindolinone, quinophthalone, metal complex pigments (nitro-based Ni complex, azomethine-based Cu complex, azo-based Ni complex), and methine-azomethine-based pigments can be used.
- metal complex pigments nitro-based Ni complex, azomethine-based Cu complex, azo-based Ni complex
- methine-azomethine-based pigments can be used.
- Pigments of quinacridone red, DPP red, phthalocyanine blue, phthalocyanine green, azoyelo, and disazoyelo are preferred. These coloring materials can be used alone or in combination of two or more.
- These pigments can be used in an amount of 0.5 to 7% by weight, preferably 1 to 5% by weight, based on the total amount of the composition. If it is less than 0.5% by weight, the handwriting becomes thin, and if it exceeds 7% by weight, a pastel color tone cannot be obtained.
- pigments other than these can be used in combination.
- the amount of quinacridone red, DPP red, phthalocyanine bunoley, phthalocyanine green, azazolo, disazoyello is 0.1 to 7 It is preferable to use it in the range of weight% in terms of light resistance and writing characteristics. A more preferred use range is from 1 to 5% by weight.
- a water-soluble resin used for a water-based writing instrument can be used, and specific examples thereof include an acrylic resin, a styrene-acrylic acid resin, and a styrene-maleic acid resin.
- the water-soluble resin can be used in an amount of 2 to 10% by weight, preferably 2 to 5% by weight, based on the total amount of the composition. If it is less than 2% by weight, the ink viscosity becomes low, and the dispersion stability of the ink drop / pigment deteriorates. Also 10 weight. If it exceeds / 0 , the ink viscosity becomes too high and the outflow of the ink becomes worse.
- Water is used as the solvent.
- the amount used is usually in the range of 40 to 60% by weight. If the amount of water used is less than 40% by weight, the viscosity of the ink becomes too high and the outflow of the ink becomes worse. If it exceeds 60% by weight, the handwriting becomes less dry.
- a water-soluble organic solvent can be used as a wetting agent.
- glycerin, ethylene glycol cornole, diethylene glycol cornole, propylene glycol cornole, and the like can be used as the water-soluble organic solvent. These water-soluble organic solvents can be used alone or in combination of two or more.
- the use amount of these water-soluble organic solvents is preferably in the range of 10 to 30% by weight based on the total amount of the composition. Wet if less than 10% by weight The effect is weak, writing blur occurs, and if it exceeds 30% by weight, the dryness of the handwriting becomes poor and the water resistance becomes weak.
- a surfactant may be used.
- Surfactants include anionic surfactants (carboxylic acid type, sulfate ester type, sulfone type, phosphate ester type), nonionic surfactants (ether type, ester type, amino ether type, alkyl amide type) and other fluorine-based surfactants.
- Activators, silicone activators and reactive activators can be used. These activators can be used alone or in combination of two or more. The use amount of these activators is preferably 5% by weight or less, preferably 0.05 to 3% by weight, based on the total amount of the composition. If it exceeds 5% by weight, the dispersion stability of the ink composition is impaired.
- urea and its derivatives, sugar, sugar ester and the like may be added for the purpose of improving the cap-off property (prevention of drying of the pen tip).
- a pH adjuster an antiseptic, an antiseptic / antifungal agent and the like can be appropriately selected and used as needed.
- a pH adjuster caustic soda, ammonia, and the like can be used.
- Known antiseptics and preservatives can be used.
- the ink viscosity it is necessary to adjust the ink viscosity to 3.5 to 1 OmPas.
- the viscosity is less than 3.5 mPa ⁇ s, the pigment dispersion stability becomes poor, and problems such as ink drop, shading of handwriting, and ink leakage occur.
- it exceeds 1 OmPas the ink spillage becomes worse.
- the viscosity of the ink can be adjusted by adjusting the amount of the pigment, the water-soluble resin, and the water-soluble organic solvent, and by using an activator or other additives.
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one Atariru acid resin 2 0 weight 0/0, sodium hydroxide 2% and water 7 8 wt%) 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol 2 Then, 0 parts by weight, 2 parts by weight of Solvent Mouth Solvent and 28 parts by weight of water were added, and the mixture was dispersed by a known bead mill. The pigment concentration was 17 parts by weight / to the total amount of the aqueous pigment dispersion A. Then, 32 parts by weight of water was further added to obtain an aqueous pigment dispersion A.
- a water-soluble resin solution scan styrene one Atariru acid resin 2 0 weight 0/0, sodium hydroxide 2% and water 7 8 wt% 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol
- Example 2 20 weight. /. And 2 parts by weight of caustic soda and 78 parts by weight of water), and 5 parts by weight were added to obtain an aqueous pigment ink.
- Example 2 20 weight. /. And 2 parts by weight of caustic soda and 78 parts by weight of water), and 5 parts by weight were added to obtain an aqueous pigment ink.
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one Atariru acid resin 2 0 wt%, Kasisoda 2 wt% and water 7 8 wt 0/0) Kinakuri Don red pigment 2 5 parts by weight 2 5 parts by weight of ethylene glycol 2 0 Parts by weight, 2 parts by weight of Solvent Mouth Solvent, and 28 parts by weight of water. Disperse the mixture in a well-known bead mill, and add water to adjust the pigment concentration to 17% by weight.
- a water-soluble resin solution scan styrene one Atariru acid resin 2 0 wt%, Kasisoda 2 wt% and water 7 8 wt 0/0
- Kinakuri Don red pigment 2 5 parts by weight 2 5 parts by weight of ethylene glycol 2 0 Parts by weight, 2 parts by weight of Solvent Mouth Solvent, and 28 parts by weight of water. Dis
- a water-soluble resin solution (scan styrene one Atariru acid resin 2 0 weight 0/0, Kasisoda 2 weight 0/0 and water 7 8 wt%) 2 DPP system 5 parts by weight red pigment 2 5 parts by weight of ethylene glycol Le 2 0 parts by weight, Buchiruse port cellosolve 2 parts by weight of water 2 8 parts by weight was added and dispersed with a bead mill publicly known, water 3 double amount portion was added so that the pigment concentration became 1 7 wt 0/0 Thus, an aqueous pigment dispersion C was obtained.
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one Akuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt%) 2 5 phthalocyanine in parts by weight green pigment 2 5 parts by weight, Echire Nguri call 2 0 Parts by weight, 2 parts by weight of butyl ether solution, and 28 parts by weight of water, and dispersed by a known bead mill. 32 parts by weight of water was added so that the pigment concentration became 17% by weight. Obtained.
- a water-soluble resin solution scan styrene one Akuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt%
- Echire Nguri call 2 0 Parts by weight
- 2 parts by weight of butyl ether solution 2 parts by weight of butyl ether solution
- Example 5 25 parts by weight of glycerin, 10 parts by weight of urea, 41.7 parts by weight of water, 0.1 part by weight of coatside H, and 0.1 part by weight of Proxel XL were added to the aqueous pigment dispersion D. Then, 15 parts by weight of the above-mentioned water-soluble resin liquid (styrene-acrylic acid resin 20% by weight, caseide 2% by weight and water 78% by weight) were added to obtain an aqueous pigment ink.
- the above-mentioned water-soluble resin liquid styrene-acrylic acid resin 20% by weight, caseide 2% by weight and water 78% by weight
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one ⁇ click acrylic acid resin 2 0 weight 0/0, Kasi soda 2 wt 0/0 and water 7 8 wt ./.) Futaroshiayun type blue pigment 2 5 weight 2 5 parts by weight Parts, 20 parts by weight of ethylene glycol, 2 parts by weight of butyl ether solvent, and 28 parts by weight of water. In addition, the mixture was dispersed by a known bead mill, and 32 parts by weight of water was added so that the pigment concentration became 17% by weight, whereby an aqueous pigment dispersion E was obtained.
- a water-soluble resin solution scan styrene one ⁇ click acrylic acid resin 2 0 weight 0/0, Kasi soda 2 wt 0/0 and water 7 8 wt ./.
- Futaroshiayun type blue pigment 2 5 weight 2 5 parts by weight Parts 20
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one Akuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt%) 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol 2 0 parts by weight, 2 parts by weight of sorbet mouth solvent, and 28 parts by weight of water are dispersed by a known bead mill, and 32 parts by weight of water are added so that the pigment concentration becomes 17% by weight. Got.
- a water-soluble resin solution scan styrene one Akuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt% 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol 2 0 parts by weight, 2 parts by weight of sorbet mouth solvent, and 28 parts by weight of water are disper
- aqueous pigment dispersion A 3.0 parts by weight of a titanium oxide dispersion, 27 parts by weight of glycerin, 10 parts by weight of urea, 28.8 parts by weight of water,
- a fungicide 0.1 part by weight of coatside H (manufactured by Takeda Pharmaceutical) and 0.1 part by weight of Proxel XL-2 (manufactured by Abyssia), the water-soluble resin liquid (styrene-acrylic acid resin 20% by weight, caustic soda 2) Weight / water and 78% by weight of water) to obtain an aqueous pigment ink.
- coatside H manufactured by Takeda Pharmaceutical
- Proxel XL-2 manufactured by Abyssia
- the water-soluble resin liquid styrene-acrylic acid resin 20% by weight, caustic soda 2
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one acrylic resin 2 0 weight 0/0, sodium hydroxide 2% and water 7 8 wt%) 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol 2 0 parts by weight, 2 parts by weight of butyl ether soup and 28 parts by weight of water were dispersed in a known bead mill, and 32 parts by weight of water was added so that the pigment concentration became 17% by weight. Got.
- a water-soluble resin solution scan styrene one acrylic resin 2 0 weight 0/0, sodium hydroxide 2% and water 7 8 wt% 2 ⁇ zone based on 5 parts by weight yellow pigment 2 5 parts by weight of ethylene glycol 2 0 parts by weight, 2 parts by weight of butyl ether soup and 28 parts by weight of water were dispersed in a known bead mill, and 32 parts by weight of water was
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan styrene one Atariru acid resin 2 0 wt%, sodium hydroxide 2 weight ° / 0 and water 7 8 wt 0/0) 2 5 Kinakuri pyrrolidone based on parts by weight red pigment 2 5 parts by weight, ethyleneglycidyl 20 parts by weight of coal, 2 parts by weight of sorbet-mouth soup, and 28 parts by weight of water are dispersed in a known bead mill, and 32 parts by weight of water are added so that the pigment concentration becomes 17% by weight. Dispersion B was obtained.
- a water-soluble resin solution scan styrene one Atariru acid resin 2 0 wt%, sodium hydroxide 2 weight ° / 0 and water 7 8 wt 0/0
- Kinakuri pyrrolidone based on parts by weight red pigment 2 5 parts by weight, ethyleneg
- Inks having the compositions shown in Table 1 were prepared. First, 25 parts by weight of a water-soluble resin solution (20% by weight of a styrene-acrylic acid resin, 2% by weight of casser soda and 78% by weight of water), 25 parts by weight of a DPP-based red pigment, and 20 parts by weight of ethylene diol Then, 2 parts by weight of butyl ether solution and 28 parts by weight of water were added, dispersed by a known bead mill, and 32 parts by weight of water was added so that the pigment concentration became 17% by weight. Obtained.
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan Chirenakuriru acid resin 2 0 weight 0/0, Kasisoda 2 weight 0/0 and water 7 25 parts by weight of 25 parts by weight of a phthalocyanine-based green pigment, 20 parts by weight of ethylene glycol, 2 parts by weight of butyl alcohol, and 28 parts by weight of water are dispersed in a known bead mill, and the pigment concentration is adjusted. Then, 32 parts by weight of water was added so that the content became 17% by weight, whereby an aqueous pigment dispersion D was obtained.
- a water-soluble resin solution can Chirenakuriru acid resin 2 0 weight 0/0, Kasisoda 2 weight 0/0 and water 7 25 parts by weight of 25 parts by weight of a phthalocyanine-based green pigment, 20 parts by weight of ethylene glycol, 2 parts by weight of butyl alcohol, and 28 parts by weight of water are dis
- Inks having the compositions shown in Table 1 were prepared. First, a water-soluble resin solution (scan Chirenakuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt%) phthalocyanine blue pigment 2 5 parts by weight 2 5 parts by weight, Echire glycol 2 0 parts by weight Then, 2 parts by weight of butyl alcohol and 28 parts by weight of water were added, and the mixture was dispersed by a known bead mill, and 32 parts by weight of water was added so that the pigment concentration became 17% by weight to obtain an aqueous pigment dispersion E. .
- a water-soluble resin solution scan Chirenakuriru acid resin 2 0 weight 0/0, Kasisoda 2 wt% and water 7 8 wt%
- phthalocyanine blue pigment 2 5 parts by weight 2 5 parts by weight Echire glycol 2 0 parts by weight
- Viscosity (mPas) 5.8 4.5 4.3 4.2 4.3 6.0 4.9 3.2 3.0 2.9 3.0 Headstand 5) ⁇ ⁇ ⁇ ⁇ ⁇ X ⁇ XXXX
- Titanium oxide dispersion 25 parts by weight of titanium oxide, 20 parts by weight of ethylene glycol, and 30 parts by weight of water were added to 25 parts by weight of a water-soluble resin solution, and dispersed by a known bead mill.
- the composition was such that 32 parts by weight of water was added so that the concentration became 17% by weight.
- the water-soluble resin liquid is composed of 20% by weight of styrene-acrylic acid resin, 2% by weight of caustic soda and 78% by weight of water, and the water-soluble resin is styrene-acrylic acid resin.
- Pigment concentration Pigment concentration in the total amount of ink (% by weight)
- Water-soluble resin Styrene-acrylic acid resin contained in pigment dispersions A to E, concentration in the total amount of ink (% by weight)
- Water-soluble resin Styrene-acrylic acid resin, its concentration in the total amount of ink (% by weight)
- Phthalocyanine blue (Product name: Fast Genpul-I TGR, manufactured by Daimoto Inki)
- Phthalocyanine Green (trade name: Fastogen Green B, manufactured by Dainippon Ink)
- Azoyello (Product name: Lionol Yellow 1 O G P T, manufactured by Toyo Ink Co., Ltd.)
- DPP Red (Product name: Chromophthalate Red 230, manufactured by Ciba-Sharity Chemicals) (Evaluation of the ink composition)
- aqueous ink compositions obtained in Examples 1 to 5 and Comparative Examples 1 to 5 were filled in a medium-core writing implement, written on paper, and the handwriting was examined. Furthermore, after writing, the writing implements were allowed to stand at 50 ° C for 1 month in an upright state (pen point up) or an inverted state (pen point down). Later, he wrote and examined the change in density of the handwriting from the beginning. Table 1 shows the results.
- the ink of Example was written on a blank sheet of paper, and the color difference between the writing line and the blank sheet was evaluated.
- the measuring device was a color difference meter manufactured by Minolta and having a product name of “CR — 241”, which was measured in accordance with JIS Z8729.
- the L * of the blank paper was 93.8
- the a * was 0.6
- the b * was 1.1
- the L * of the ink in each example was 68 or more
- Had a color difference l E * (ab) of 45 or less As a result, it was confirmed that the ink of each example had a large degree of color development as a pastel color.
- the water-based pigment ink for a core-type writing instrument of the present invention obtains a pastel color tone by using a specific amount of pigment, a specific amount of a water-soluble resin, and a specific ink viscosity without using a white pigment.
- the ink composition of the present invention can be applied to a core-type writing instrument having a known structure.
- a writing instrument having a core in which a fiber bundle is converged as an ink storage section, and a pen having a pen tip (tip) for flowing out the ink stored in the core.
- a writing implement equipped with fibers, plastic cores, brushes, and brushes.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003296143A AU2003296143A1 (en) | 2003-01-10 | 2003-12-26 | Water base pigment ink composition for inner lead type writing instrument |
US10/541,932 US7541394B2 (en) | 2003-01-10 | 2003-12-26 | Water base pigment ink composition for inner lead type writing instrument |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003003904 | 2003-01-10 | ||
JP2003-3904 | 2003-01-10 |
Publications (1)
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WO2004063297A1 true WO2004063297A1 (ja) | 2004-07-29 |
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PCT/JP2003/016904 WO2004063297A1 (ja) | 2003-01-10 | 2003-12-26 | 中芯式筆記具用水性顔料インキ組成物 |
Country Status (3)
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US (1) | US7541394B2 (ja) |
AU (1) | AU2003296143A1 (ja) |
WO (1) | WO2004063297A1 (ja) |
Families Citing this family (1)
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JP7474059B2 (ja) * | 2020-02-06 | 2024-04-24 | 三菱鉛筆株式会社 | マーキングペン |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6397670A (ja) * | 1986-10-15 | 1988-04-28 | Dainichi Color & Chem Mfg Co Ltd | パステル調筆記具用インキ組成物 |
JPH11241042A (ja) * | 1998-02-24 | 1999-09-07 | Pilot Ink Co Ltd | 筆記用水性インキ組成物 |
JP2000129189A (ja) * | 1998-10-21 | 2000-05-09 | Sakura Color Prod Corp | ボールペン用水性低粘度インキ組成物 |
US20010032567A1 (en) * | 2000-03-27 | 2001-10-25 | Mitsubishi Pencil Kabushiki Kaisha | Ink composition for water based ballpoint pen |
JP2002053788A (ja) * | 2000-08-09 | 2002-02-19 | Mitsubishi Pencil Co Ltd | 水性ボールペン用インキ組成物 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH089703A (ja) | 1994-07-04 | 1996-01-16 | Mitsubishi Agricult Mach Co Ltd | ロータリー耕耘作業機の耕深制御機構 |
JPH089704A (ja) | 1994-07-04 | 1996-01-16 | Mitsubishi Agricult Mach Co Ltd | ロータリー耕耘作業機におけるリヤカバー懸架装置 |
-
2003
- 2003-12-26 WO PCT/JP2003/016904 patent/WO2004063297A1/ja active Application Filing
- 2003-12-26 US US10/541,932 patent/US7541394B2/en not_active Expired - Fee Related
- 2003-12-26 AU AU2003296143A patent/AU2003296143A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6397670A (ja) * | 1986-10-15 | 1988-04-28 | Dainichi Color & Chem Mfg Co Ltd | パステル調筆記具用インキ組成物 |
JPH11241042A (ja) * | 1998-02-24 | 1999-09-07 | Pilot Ink Co Ltd | 筆記用水性インキ組成物 |
JP2000129189A (ja) * | 1998-10-21 | 2000-05-09 | Sakura Color Prod Corp | ボールペン用水性低粘度インキ組成物 |
US20010032567A1 (en) * | 2000-03-27 | 2001-10-25 | Mitsubishi Pencil Kabushiki Kaisha | Ink composition for water based ballpoint pen |
JP2002053788A (ja) * | 2000-08-09 | 2002-02-19 | Mitsubishi Pencil Co Ltd | 水性ボールペン用インキ組成物 |
Also Published As
Publication number | Publication date |
---|---|
AU2003296143A1 (en) | 2004-08-10 |
US20060142418A1 (en) | 2006-06-29 |
US7541394B2 (en) | 2009-06-02 |
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