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公开(公告)号：JPH105635A
公开(公告)日：1998-01-13
申请号：JP4152397
申请日：1997-02-10
Applicant: KAO CORP
Inventor： YASUDA SHINICHIRO , SATO YUKIYA , MARUTA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To form a coating film having a uniform hue free from color irregularity by mixing a plurality of kinds of powder coating materials mutually different in hue without melting them to perform color matching and mixing the powder coating materials with a fluidity enhancer in this mixing before performing electrostatic powder spray coating by charged powder coating materials. SOLUTION: In coating, at first, two kinds of powder coating materials mutually different in hue are introduced into the first mixing part of a mixing space 11 from respective powder coating material inlets 3a, 3b and at the same time, a fluidity enhancer having an electric charge control function is introduced into the first mixing part from a fluidity enhancer inlet 4. Next, two kinds of the powder coating materials and the fluidity enhancer are simultaneously mixed by rotating first and second ratary members 17, 18 without being melted. Next, in an electrically charging space 12, the mixed powder coating material containing the fluidity enhancer is charged by static electricity generated by the friction of the powder coating material and linear members 21, 22 and the charged powder coating material is jetted to an object to be coated from an outlet 5 to form a coating film.
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公开(公告)号：JPH09290204A
公开(公告)日：1997-11-11
申请号：JP13090496
申请日：1996-04-25
Applicant: KAO CORP
Inventor： YASUDA SHINICHIRO , SATO YUKIYA , MARUTA MASAYUKI
IPC: B05D1/06 , B05D3/02 , C09D167/00
Abstract: PROBLEM TO BE SOLVED: To make it possible to obtain a coating film of a uniform hue by successively adhering plural kinds of powder coating materials varying in the hues from each other onto a surface to be coated by electrostatic force in such a manner that the coating films of the mixed hues are formed, thereafter the coating films are baked onto the surface to be coated. SOLUTION: The surface 5a to be coated is coated white before execution of coating in a coating line. The yellow powder coating material is adhered in a first coating stage 1 on the surface 5a to be coated which is coated with the white powder coating material, the magenta powder coating material is adhered thereto in a second coating stage 2 and the cyan powder coating material is adhered thereto in a third coating stage 3. The coating films composed of the powder coating material is adhered onto the surface 5a to be coated are cured by heating, by which the coating films are baked onto the surface 5a to be coated in a fourth stage 4. The object 5 to be coated is thereafter ejected from the baking position and is cooled, by which the coating of the desired hue is applied on the surface 5a to be coated.
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公开(公告)号：JPS6334551A
公开(公告)日：1988-02-15
申请号：JP17846986
申请日：1986-07-29
Applicant: KAO CORP
Inventor： SATO YUKIYA , OTANI SHOJI , TAKEMURA KAZUNARI , TSUSHIMA RIKIO
Abstract: PURPOSE:To improve triboelectrifiability and moisture resistance of the toner by dispersing a charge controlling agent and a coloring agent in a polymerizable monomer in an aqueous medium, followed by effecting a suspension polymerization of the obtd. dispersion in presence of 1 kind or >=2 kinds of specific sulfosuccinic acid diesters. CONSTITUTION:The coloring agent such as carbon black etc., the charge controlling agent and an another necessary improver of the toner are mixed in the polymerizable monomer, followed by dispersing the obtd. mixture in presence of the aqueous solution contg. 1 kind or >=2 kinds of the specific sulfosuccinic acid diesters shown by formulas I-IV. Subsequently, the obtd. dispersion is polymerized in a nitrogen atmosphere at a decomposition temp. of a polymerization initiator. In the formula, R1 is 1-36C a straight chain or a branched chain alkyl group or an alkyl phenyl group having alkenyl group, etc., R2 is alkyl, methacryl or 1-12C alkyl group, A is 2-4C alkylene group, (n) is an integer of 0-100, M is mono or divalent cation, (m) is an ionic valency of M. Thus, the toner having an excellent moisture resistance is obtd.
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公开(公告)号：JP2001070874A
公开(公告)日：2001-03-21
申请号：JP25416699
申请日：1999-09-08
Applicant: KAO CORP
Inventor： YASUDA SHINICHIRO , YOSHIMURA YOSHIO , SATO YUKIYA
Abstract: PROBLEM TO BE SOLVED: To provide a coating method for obtaining a coating film having a gradation pattern, in which the hue is continuously changed, with >=2 kinds of powder coating compositions and a producing method of the coating film using the coating method. SOLUTION: In the coating method having a process for coating with >=2 kinds of powder coating compositions each composed of >=2 kinds of powder coating materials while the weight ratio of the powder coating materials is changed and for obtaining the coating film having the gradation pattern, the powder coating material has a property that each powder coating material alone is not thermally cured at
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公开(公告)号：JP2000109077A
公开(公告)日：2000-04-18
申请号：JP28441698
申请日：1998-10-06
Applicant: KAO CORP
Inventor： ODAKURA SHINJI , TOJO TAKEHIKO , SATO YUKIYA
Abstract: PROBLEM TO BE SOLVED: To prevent the strength of paper from decreasing due to secular change, prevent mildew from propagating and further prevent the contents from deteriorating, by chiefly forming this hollow container of paper constituted of the mouth, the body and the bottom, forming the diameter of the body larger than that of the mouth, and applying powder coating on the outside and inside faces. SOLUTION: This hollow container 10 is covered with a coated film 12 of powder coating all over both outside and inside faces of a container body 11 chiefly made of pulp, and constituted of the mouth 13, the body 14, and the bottom 15 as a whole. The diameter of the body 14 and the bottom 15 is set almost the same with each other but the diameter of the mouth 13 is set smaller than the diameter of the body 14. In this way, moisture and oxygen is prevented from penetrating from the outside of the container into the container and further, the quality of the contents is prevented from deteriorating due to propagation of mildew and ingress of water or oxygen. Moreover, the strength of the container 10 is more enhanced and leakage of the contents is effectively prevented.
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Patent Agency Ranking
公开(公告)号：JP2000095974A
公开(公告)日：2000-04-04
申请号：JP26785698
申请日：1998-09-22
Applicant: KAO CORP
Inventor： TAJIMA HISAKAZU , SATO YUKIYA , YOSHIMURA YOSHIO , AOKI KATSUTOSHI
IPC: C09D5/03
Abstract: PROBLEM TO BE SOLVED: To provide a method for coating a powder coating which can reduce the number of powder coatings to be assorted as a stock and jointly uses powder coatings capable of forming coated films having excellent opacifying properties even in thin films, and a powder coating composition containing these powder coatings. SOLUTION: A method for coating a powder coating comprises jointly using a powder coating containing a colorant and a powder coating not containing a colorant which have such properties that they are not thermosetting by themselves but are thermosetting at a temperature of not higher than 250 deg.C by coating as a mixture with another type powder coating, and at least one powder coating containing a colorant containing not less than 55 pts.wt. colorant based 100 pts.wt. resin. A powder coating composition contains the powder coatings which have been jointly used in the method for coating a powder coating.
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公开(公告)号：JPH1190314A
公开(公告)日：1999-04-06
申请号：JP25668997
申请日：1997-09-22
Applicant: KAO CORP
Inventor： SATO YUKIYA , TAJIMA HISAKAZU , AOKI KATSUTOSHI , TOJO TAKEHIKO , MARUTA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To efficiently wash coating devices in such a manner that a color change may be easily and cost effectively carried out by supplying a powder electrified to the polarity reverse from the polarity of adhered power coating materials into the coating devices and washing the coating devices. SOLUTION: At the time of washing the coating devices adhered with the power coating materials, the powder electrified to the polarity reverse from the polarity of the adhered power coating material is supplied into the coating devices and the coating devices are washed. The powder may be produced in the same manner as the process for producing general power coating materials and is more specifically prepd. by melting and kneading, for example, resins, etc., with an extruder, etc., and cooling the melt, then subjecting the melt to physical pulverization using a pulverizing device, such as hammer mill, then classifying the powder by using a classifying machine, such as an air classifying machine. As a result, the power coating materials remaining in the coating devices is adhered to the powder by electrodes attraction and, therefore, the power coating material are more easily removed by washing.
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公开(公告)号：JPH1170360A
公开(公告)日：1999-03-16
申请号：JP23449197
申请日：1997-08-29
Applicant: KAO CORP
Inventor： TOJO TAKEHIKO , SATO YUKIYA , TAJIMA HISAKAZU , AOKI KATSUTOSHI , MARUTA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a coating method for a film providing the uniform hue and satisfying both of glossiness and film strength. SOLUTION: A coloring method for forming a film of uniform hue by mixing two kinds or more of powdery coating materials having different hue comprises a coating process for coating two kinds or more of powder coating materials, a heat melting process for heat melting the applied powdery coating materials and a curing reaction process for curing a hot melted material by heat. It is preferable that the melting process is carried out for the period of time sufficient for heat melting the powdery coating material at the temperature lower than the coating start temperature for the powdery coating material and that the curing reaction process is carried out at the temperature of 70-130% of the curing reaction heating peak temperature.
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公开(公告)号：JPH10282720A
公开(公告)日：1998-10-23
申请号：JP10268197
申请日：1997-04-04
Applicant: KAO CORP
Inventor： MARUTA MASAYUKI , SATO YUKIYA
Abstract: PROBLEM TO BE SOLVED: To produce an electrophotographic toner capable of giving a colored image effective in information processing by bonding two or more kinds of colored particles each consisting of a bonding resin and a colorant but different from each other in color tone. SOLUTION: Two or more kinds of colored particles each consisting of a bonding resin and a colorant but different from each other in color tone are bonded to obtain the objective electrophotographic toner. The bonding resin is not especially limited and polyester resin, epoxy resin or a styrene- acrylic copolymer may be used but polyester resin is preferably used because the resultant toner is liable to ensure both color forming property and durability. The colored particles are bonded by a bonding method under mechanical stirring, a bonding method by heating, a bonding method using an adhesive component or a combination of such methods.
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公开(公告)号：JPH09290182A
公开(公告)日：1997-11-11
申请号：JP13091296
申请日：1996-04-25
Applicant: KAO CORP
Inventor： YASUDA SHINICHIRO , SATO YUKIYA , MARUTA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To increase the maximum jet amount of a powdery coating material, enhance coating efficiency and carry out the coating in a short time even in the case the area of an object to be coated is large in a static powder coating gun which can provide a smooth and uniform surface and reduce the adhesion of dust. SOLUTION: The size of meshes of a mesh-shaped component 11 disposed to be brought into contact with a powdery coating material being carried on a carrying line 5 of the powdery coating material is formed larger than the size of powder particles constituting the powdery coating material. The material quality of the mesh-shaped component 11 can charge the powdery coating material by generating static electricity by the friction with powdery coating material.
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