JP2004167821A - Member for printing equipment, surface treating method therefor, and printing equipment using the member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member for printing equipment and the printing equipment using the member, which make electrification hardly occur in a film and the member brought into contact with the film, even if high-speed printing is done, which prevent ink from being transferred to a roll by the contact of a printed part of the film with the roll, which make the quality of printed matter good, which bring about a safe operating environment for the printing, and which include an ink pan with good workability of ink cleaning, ink wiping, etc., in terms of the printing equipment for the rolled film, typified by gravure printing equipment. <P>SOLUTION: The member 1 for the printing equipment comprises a conductive metal which is mainly composed of iron, stainless steel, aluminum and CFRP; a metallic compound such as a tungsten compound, a molybdenum compound and a chromium compound, an alloy, containing the metallic compound, or a cermet is thermally sprayed onto a surface 4 of the member 1; the surface, which undergoes thermal spraying, is coated with a fluorocarbon resin or a silicone resin 3; and thermally sprayed metals 2 are partially exposed on the surface coated with the resin 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a winding sheet feeding section for supplying a raw film, a printing section having a cylindrical intaglio type gravure plate cylinder, an ink pan for supplying liquid ink, and a drying section for drying the printed ink. And a web rotary printing apparatus mainly composed of a paper discharge unit, a film transport roll used in the printing apparatus, a member for a printing apparatus of an ink pan, and a method for surface treating the member for the printing apparatus It is.
However, the present invention can also be applied to printing apparatuses in the field of lithographic printing and sheet-fed printing.
[0002]
[Prior art]
The gravure printing apparatus has a winding and feeding unit for supplying a raw film film, a printing unit having a cylindrical intaglio type gravure plate cylinder and an ink pan for supplying liquid ink, and a drying unit for drying the printed ink. The film is guided by a transport roll or the like and moves between these components. The length of the process from the paper feeding unit to the paper discharging unit ranges from several meters to several tens of meters, and the printing film comes into contact with many rolls at a high speed and passes. At that time, static electricity is generated on the film, the contact roll, and the like, and foreign matter and the like easily adhere to the printing surface, and there is a problem that a spark or a personal injury is caused by a spark caused by the static electricity.
On the other hand, for example, Patent Literature 1 proposes that the relative humidity around each unit of the paper feeding unit, the printing unit, and the paper discharging unit is controlled to be 40 to 60% to manufacture.
[0003]
[Patent Document 1]
JP-A-10-236008
[0004]
[Problems to be solved by the invention]
However, in the above method, large-scale air conditioning equipment is required to control the humidity environment around the printing apparatus, the manufacturing cost is high, and there is a practical problem. It cannot be said.
Therefore, the present invention has been made in view of the above-described problems, and in a winding film printing device represented by a gravure printing device, a film or a member that comes into contact with the film even at high speed printing. In the state where the charge is hardly generated and the printing ink is not completely dried, the printing portion of the film does not contact the roll and the ink is transferred to the roll, and the quality of the printed matter is good. It is an object of the present invention to provide a printing apparatus and a roll that comes into contact with a film of the printing apparatus, which has a safe working environment.
In addition, the ink pan used in the printing apparatus has good workability such as ink washing and ink wiping when disposing of ink or replacing ink. It is an object of the present invention to provide a surface treatment method for a member for a printing apparatus such as the above-mentioned contact roll or ink pan, which has excellent properties.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, a member for a printing apparatus of the present invention is made of a conductive metal mainly composed of iron, stainless steel, aluminum, and carbon fiber reinforced plastic (CFRP). Tungsten compounds, molybdenum compounds, metal compounds of chromium compounds, alloys or cermets containing the same were sprayed, and the sprayed surface was coated with a fluorine-based resin or silicone resin, and sprayed from the coated surface of the resin. It is characterized in that some of the metals are exposed on the surface.
[0006]
The surface treatment method for a printing apparatus member according to the present invention may be configured such that a tungsten compound, a molybdenum compound, a chromium compound, A metal compound of a compound, an alloy or a cermet containing the compound is sprayed, and the sprayed surface is coated with a fluorine-based resin or a silicone resin to such an extent that a portion of the sprayed metal is exposed to the surface. It is characterized by doing.
Further, the surface treatment method for a printing device member of the present invention is characterized in that, in the surface treatment of a printing device member made of a conductive metal mainly composed of iron and stainless steel, a metal compound of a tungsten compound, a molybdenum compound, and a chromium compound is formed on the surface. , By spraying an alloy or cermet containing the same, coating the sprayed surface with a fluorine-based resin or a silicone resin, and then polishing the coated surface of the resin to obtain a part of the sprayed metals. Is exposed on the surface.
[0007]
The printing apparatus according to the present invention uses the above-described printing apparatus member as a roll and / or an ink pan that stores ink when the printing film is conveyed, and supplies the raw film. A paper feeding section, a cylindrical intaglio type gravure plate cylinder, a printing section having an ink pan for supplying liquid ink, a drying section for drying the printed ink, and a paper discharging section. It is characterized by comprising.
[0008]
[Action]
In the present invention, the printing apparatus member is made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP, and on the surface of the member, a tungsten compound, a molybdenum compound, a metal compound of a chromium compound, an alloy containing the same, or The cermet is sprayed, the sprayed surface is coated with a fluorine-based resin or a silicone resin, and a part of the sprayed metal is exposed from the surface of the resin coating. Metals exposed on the surface are extremely excellent in conductivity, and also indirectly lower the volume resistivity of the fluororesin or silicone resin on the coating surface, and are excellent in antistatic properties, It is possible to obtain a member for a printing apparatus that makes use of the excellent properties of the coating resin such as excellent water repellency and oil repellency, as well as non-adhesion and solvent resistance. Further, the metal particles that are exposed and protruded on the surface of the member have extremely high hardness, have a small amount of abrasion, have a long life, and are not deteriorated in quality even in contact with a printing film.
[0009]
If this printing apparatus member is used as a roll that comes into contact with the film when the printing film is conveyed, peeling charge when the film comes into contact with the roll and separates can be reduced, and the printed ink can be used. In a state where the ink is not completely dried, it is less likely that the printed portion of the film comes into contact with the roll and the ink is transferred to the roll. In addition, if this printing device member is used as an ink pan for storing liquid ink, it will have excellent releasability between the ink in the ink pan and the surface of the ink pan when discarding or replacing the ink in the ink pan. In addition, since the ink pan surface has excellent properties such as solvent resistance and abrasion resistance, operations such as ink cleaning and ink wiping can be performed very easily and in a short time.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a member for a printing apparatus, a surface treatment method thereof, and a printing apparatus using the member according to the present invention will be described with reference to the drawings.
FIG. 1 is a partially enlarged schematic view showing one embodiment of a member for a printing apparatus according to the present invention. The illustrated printing apparatus member 1 is a guide roll, and is made of a conductive metal mainly composed of iron in order to maintain the roll shape, and tungsten carbide (tungsten carbide) is sprayed on the iron member surface 4. As a result, it becomes granular 2 and adheres to the member surface 4. The sprayed surface is coated with a fluorine-based resin, and as shown in the drawing, a part of the sprayed metal particles 2 is partially protruded from the surface of the fluorine-based resin 3 covering the member surface 4. It is exposed to. In order to achieve such a state, the fluororesin is formed on the member surface 4 so as to be thick enough to completely cover the metal particles 2 and then the coated surface of the fluororesin is polished as shown in the figure. It was made.
In addition, as shown in FIG. 1, there is a polishing method as described above for protruding a part of the metal from the surface of the resin to be coated. However, the present invention is not limited to this method. The thickness of the resin layer to be coated may be adjusted to such an extent that a portion of the sprayed metal is exposed to the surface with a fluorine-based resin or a silicone resin on the surface provided.
[0011]
FIG. 2 is a partially enlarged schematic view showing another embodiment of the printing apparatus member according to the present invention. The illustrated printing apparatus member 1 is an ink pan for storing liquid ink, is made of a conductive metal mainly composed of stainless steel in order to maintain the shape of the ink pan, and has a tungsten carbide surface on the stainless member surface 4. (Tungsten carbide) is sprayed to form particles 2 and adhere to the member surface 4. The sprayed metal particles are sprayed in such a state that the sprayed surface and the stainless steel member surface 4 are coated with a fluorine-based resin, and as shown in the figure, slightly protrude from the surface of the fluorine-based resin 3 covering the member surface 4. Part 2 is exposed on the surface. In order to achieve such a state, the fluororesin is formed on the member surface 4 so as to be thick enough to completely cover the metal particles 2 and then the coated surface of the fluororesin is polished as shown in the figure. It was made.
[0012]
(Metals sprayed)
Metals sprayed on the surface of a printing apparatus member made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP will be described.
First, the thermal spraying method will be described. This is a method in which metals as materials are melted at a high temperature, and the resulting fine particles are sprayed on the surface of the material as if spraying. The above-mentioned high temperature differs depending on the material and method used, but is 2273 to 10273K. The droplet used is rapidly cooled when it reaches the material, and the temperature of the material is kept at 573K or lower.
Therefore, according to the thermal spraying method, there is an advantage that the processing speed is high and the processing can be performed by a dry process.
[0013]
By this thermal spraying method, the metal adhered in a granular form on the surface of the printing device member is, for example, a conductive material for reducing the peeling charge when the printing film and the roll come into contact with each other and are separated. A material that sufficiently satisfies the requirements such as abrasion resistance in contact between the film and the roll is required. In the present invention, the above-mentioned requirements can be satisfied by selecting a metal compound of a tungsten compound, a molybdenum compound, a chromium compound, an alloy containing the same, or a cemented metal such as a cermet as the metal. . The cermet is a composite material obtained by compression molding and sintering a ceramic powder and a metal powder.
The above-mentioned metal sprayed is formed on the surface of the printing device member with a thickness of several tens μm to several hundred μm, and a plurality of metal particles are stacked on the member surface as shown in FIGS. 1 and 2. Formed in a state.
[0014]
(Coating resin)
The above metal compound or an alloy containing the metal compound is sprayed on a surface of a member for a printing apparatus made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP, and the sprayed surface is coated with a fluorine-based resin or a silicone resin. Is coated. However, some of the sprayed metals are exposed on the surface of the printing apparatus member. In the member for a printing apparatus used in the present invention, for those which come into direct contact with the ink such as an ink pan and a cooling roll, it is preferable to use a fluorine-based resin having excellent solvent resistance as a resin for coating the surface thereof.
Examples of the fluororesin that coats the surface of the printing apparatus member include, for example, polytetrafluoroethylene (PTFE), perfluoroethylene-perfluoroalkylvinyl ether copolymer (PFA), and tetrafluoroethylene. Ethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-hexafluoropropylene copolymer (PFEP), ethylene-tetrafluoroethylene copolymer (PETFE), ethylene-chlorotrifluoroethylene copolymer (PECTFE) , Polyvinylidene fluoride (PVdF) and the like.
[0015]
Further, it is desirable that the silicone resin as the coating resin is applied to a member for a printing apparatus used in a place where the coating resin does not directly contact the ink. The silicone resin is a silicone rubber bonded by a siloxane bond containing dimethyl silicone, fluorosilicone, methylphenyl silicone, etc., and the liquid type is a condensation reaction or an addition reaction, and the millable type is a radical reaction. Alternatively, it is produced using a partial addition reaction. As the silicone resin, for example, KR261, KR271, KR272, KR275, KR280, KR282, KR285, KR251, KR155, KR220, KR201, KR204, KR205, KR206, SA4, ES1001, ES1001N, manufactured by Shin-Etsu Silicone Co., Ltd. ES1002T, KR3093, SR2100, SR2101, SR2107, SR2110, SR2108, SR2109, SR2115, SR2400, SR2410, SR2411, SH805, SH806A, SH840 manufactured by Toray Silicone Co., Ltd. are used.
[0016]
Examples of the method of providing the coating resin on the surface of the member for a printing apparatus include, for example, electrostatically coating resin powder and baking it at about 380 ° C., injection molding, extrusion molding, powder coating, and the like. Is mentioned. The thickness of the coating resin is several μm to several thousand μm, and when the formed film is polished later, it is formed relatively large so as to cover the sprayed metals. Further, without using a polishing method, the thickness of the resin layer to be coated is adjusted to such an extent that a portion of the sprayed metal is exposed to the surface with a fluorine resin or a silicone resin on the sprayed surface of the metal. In such a case, the metal particles are formed relatively small so that a part of the metal particles already formed by thermal spraying are exposed on the surface.
[0017]
(Surface treatment method for printing device members)
The surface treatment method for a member for a printing apparatus of the present invention is roughly classified into two methods. One is to spray a metal compound of tungsten compound, molybdenum compound, chromium compound, an alloy or cermet containing it on the surface of a printing device member made of conductive metal mainly composed of iron, stainless steel, aluminum, CFRP. And a surface treatment method of coating the sprayed surface with a fluorine-based resin or a silicone resin to such an extent that a portion of the sprayed metal is exposed to the surface.
Another surface treatment method for a member for a printing apparatus is a method for treating a surface of a member for a printing apparatus made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP. A metal compound, an alloy or a cermet containing the metal compound is sprayed, the sprayed surface is coated with a fluororesin or a silicone resin, and the coated surface of the resin is polished to form one of the sprayed metals. This is a method of exposing the part to the surface.
[0018]
In the former, there is no step of polishing the resin-coated surface, and a part of the sprayed metal is exposed on the surface by controlling the film thickness of the fluororesin or silicone resin coating resin.
Further, the latter forms a fluorine-based resin or a silicone resin on the surface of the printing apparatus member on which the metal is sprayed relatively coarsely enough to cover the sprayed metal, and thereafter forms the resin. The coated surface is polished to expose a part of the sprayed metals to the surface.
[0019]
As a method of polishing the resin-coated surface, a conventionally known method such as buff polishing, grinder polishing, and grindstone polishing can be used. In addition, in the case of a printing apparatus member such as an ink pan, the outer shape of which is not as simple as a cylinder, but has irregularities or an outer shape having sharp corners. The surface treatment of the resin-coated surface can be performed by a method of cleaning the surface. Therefore, polishing the resin-coated surface in the present invention means not only the above-described polishing method but also a method of cleaning the surface using a solution that dissolves the coated resin.
In the above-described surface treatment of a member for a printing apparatus, the state in which metals protrude and are exposed from the surface of the resin to be coated is such that the height of the metal protrudes from the surface of the coated resin and is exposed is several μm to several hundred μm. It is.
[0020]
(Printing device members)
The printing apparatus member treated by the surface treatment method described above is, as a specific member, an ink pan that supplies liquid ink, a member that is in direct contact with liquid ink such as an ink tank, or an ink printed in a printing unit. Examples include a guide roll in a drying section to be dried, a cooling roll immediately after the drying section, and a transport roll at a location where peeling electrification easily occurs upon contact with a printing film.
Also, in a printing apparatus member as shown in FIGS. 1 and 2, a plurality of particles of metal sprayed on the surface of the member are stacked, but the metal particles located on the outermost surface are used for printing. Even if it is worn due to contact or friction with a film, etc., the fluororesin or silicone resin coating resin that secures the metal particles and the surface of the printing device member around the metal particles also wears, and When compared to the metal particles and the coating resin, the coating resin is easier to wear than the metal particles, so the surface of the member exposes some of the sprayed metals from the surface of the coating resin and protrudes from the first use. This is a state similar to the state before the operation (the state shown in FIGS. 1 and 2), and the life of the printing apparatus member can be extended.
[0021]
At this time, for example, one of the metal particles projected and exposed on the surface of the member is worn together with the surrounding coating resin, and even if one unit of the metal particles disappears, another metal particle located thereunder is removed. A part of the metal member sprayed from the surface of the coating resin is exposed to the surface, and part of the metal sprayed from the surface of the coating resin is exposed to the surface, so that the original characteristics of the printing apparatus member of the present invention can be utilized.
[0022]
When used as a transport roll for a printing film in a member for a printing apparatus, the roll surface is sprayed from the coating resin by setting the surface roughness of the roll to about 5 to 18 μm with a center line average roughness specified in JIS B0601. A part of the applied metals is exposed and protruded from the surface, and a transport roll excellent in conductivity and releasability can be obtained. Further, in a printing apparatus member such as a transport roll and an ink pan, the surface electric resistance value of the member surface is set at 10 to provide excellent conductivity and antistatic property. ^Thirteen It is preferable to use a level of Ω or less.
[0023]
(Printing device)
The printing apparatus of the present invention uses the printing apparatus member described above as a roll and / or an ink pan for storing ink when the printing film is conveyed, and supplies the film raw material. A paper feeding section, a cylindrical intaglio type gravure plate cylinder, a printing section having an ink pan for supplying liquid ink, a drying section for drying the printed ink, and a paper discharging section. It is a web rotary printing apparatus configured.
FIG. 3 is a schematic diagram showing one embodiment of the printing apparatus of the present invention.
The illustrated printing apparatus 5 includes a take-up / feed unit 6 for supplying a raw film, a printing unit 7 having a cylindrical intaglio-type gravure plate cylinder, and an ink pan for supplying liquid ink, and the printed ink. This is a web rotary type gravure printing apparatus including three units each including a drying unit 8 for drying and a discharge unit 9 for discharging and winding the film after printing.
[0024]
An original film obtained by winding the printing film 13 in a roll shape rotates in the direction of an arrow from the winding sheet feeding unit 6, and the printing film is transported to the first printing unit 7. In the printing unit 7, the ink 14 is supplied to the cylindrical intaglio type gravure plate cylinder 15 from the ink pan 12 in which the liquid ink 14 is stored, the amount of ink is adjusted by a doctor, and the ink of the gravure plate cylinder 15 is discharged. The printing is transferred to the printing film 13 by the pressure of the plate cylinder 15 and the impression cylinder 16. The printed film 13 passes between a number of guide rolls 10 in the drying unit 8 to dry the ink.
[0025]
In the film 13 printed in the first printing unit 7, the ink printed in the drying unit 8 is dried, and the film printing surface and the roll 11 are directly contacted by the cooling roll 11 to cool the film 13. You. Then, after that, the film 13 is moved by the transport roll, transported to the second printing unit 7, and the same process as printing and drying in the first printing unit 7 is performed, and then to the third printing unit 7. The film 13 is conveyed, and the printing and drying steps are similarly performed in the third printing unit 7. Then, the film 13 printed and dried in the third printing unit 7 is wound up in a roll shape in the paper discharging unit 9 and printing is completed.
[0026]
In the printing apparatus, as the film 13 to be printed, the same substrate as that used for the conventional printing film can be used as it is, and the surface of the substrate has been subjected to an easy adhesion treatment. And others can be used, and there is no particular limitation. Specific examples of preferred substrates include, for example, polyethylene terephthalate and other polyesters, polycarbonates, polyamides, polyimides, cellulose acetate, polyvinylidene chloride, polyvinyl chloride, polystyrene, fluoroplastics, polypropylene, polyethylene, and plastic films such as ionomers. And papers such as glassine paper, condenser paper and paraffin paper, cellophane and the like, and also a composite film obtained by laminating two or more of these. The thickness of these films is appropriately changed depending on the material so that the strength and heat resistance are appropriate, but usually, the thickness is preferably about 2 to 100 μm.
[0027]
As the liquid ink to be printed in the printing unit, those conventionally used in gravure printing are used. The ink is composed of a coloring agent for pigments and dyes, resins, solvents, and additives.
In the drying section of the printing device, a drying method using a heating drum using steam or electricity, a drying method using an infrared lamp, a far-infrared tube heater, a drying method using hot air using a heat exchanger such as steam, electricity, gas, or oil heating, etc. Can be applied.
[0028]
In the printing apparatus of the present invention, since the printing apparatus members such as transport rolls having excellent antistatic properties and releasability from ink are used, the printing quality deteriorates the printing quality from a low speed to a particularly high speed. In addition, the printing work environment is safe. The printing speed can be applied, for example, to a range of about 10 to 500 mm / min.
However, the higher the printing speed, the higher the temperature setting in the drying section, and the ambient temperature in the drying section is about 50 to 400 ° C.
[0029]
【Example】
Next, the present invention will be described more specifically with reference to examples.
(Example 1)
A web rotary type three-color gravure printing apparatus as shown in FIG. 3 was used. However, all guide rolls 10 and cooling rolls 11 in the drying unit 8 of the printing apparatus are made of a conductive metal mainly composed of iron in order to maintain the roll shape, and tungsten carbide is formed on the surface of the iron member. It is sprayed, granulated, and adheres to the member surface (the formation of metal particles as shown in FIG. 1). The sprayed portion was formed with an average thickness of 50 μm. A film is formed on the sprayed surface with a polytetrafluoroethylene (PTFE) resin to a thickness of 70 μm, and the resin is coated so as to cover almost all the metal particles. Thereafter, the coated surface of the resin was buffed to expose a portion of the sprayed metals to the surface as shown in FIG.
[0030]
The ink pan in each printing section is made of stainless steel, and on the surface on which gravure ink is stored, tungsten carbide is sprayed on the surface as shown in FIG. I let it. The sprayed portion was formed with an average thickness of 10 μm. On the sprayed surface, a film of polytetrafluoroethylene (PTFE) was formed with an average thickness of 8 μm, and as shown in FIG. To finish the ink pan surface.
[0031]
The printing conditions were as follows.
・ Printing film: polyethylene terephthalate film with a thickness of 6 μm
-Ink used: The first printing part is a solvent dye ink of hue yellow, the second printing part is a solvent dye ink of hue magenta, and the third printing part is a solvent dye ink of hue cyan.
・ Ambient temperature in each drying section; 150 ° C
・ Dry air volume: 20m / min
-Drying time: 1.5 seconds (film passing time in each drying section)
The hot air drying method described above was used.
・ Printing speed: 150m / min
[0032]
Under the above conditions, 3000m was continuously printed, no large static electricity was generated on the printing film, contact roll, etc., no foreign matter was attached to the printing surface, and no spark was generated due to peeling charge between the film and the roll. Further, the quality of the printed matter was good without the printed ink being transferred to a roll in contact with the ink printing surface. The printing work environment was also safe. Furthermore, after the printing was completed, the ink was easily repelled from the surface of the ink pan in the disposal and cleaning of the ink in the ink pan, the ink was easily wiped off, and the cleaning of the ink pan was completed in a short time.
[0033]
(Comparative Example 1)
Under the printing conditions of the printing apparatus of the first embodiment, all the guide rolls and the cooling rolls in the drying unit are made of a conductive metal mainly composed of iron in order to maintain the roll shape, as shown in the first embodiment. No surface treatment was performed at all. The ink pan was made of stainless steel and was not subjected to any surface treatment as shown in Example 1. Other conditions were the same as in Example 1, when 3000 m was continuously printed, static electricity was generated at the printing film and the contact roll, particularly at the location of the guide roll in the drying section, and foreign matter adhered to the printing surface, In addition, sparks were generated due to the static electricity.
[0034]
Further, at the cooling roll portion, the printed ink was transferred to the roll surface, and the ink was transferred again to the film surface from the roll surface, and the printing surface became rough. Had deteriorated. In addition, after printing, the ink is difficult to repel from the surface of the ink pan in the disposal and cleaning of the ink in the ink pan, it takes time to wipe off the ink, it takes time to clean the ink pan, and the workability is extremely poor. .
[0035]
The present invention has been described with reference to the embodiments. However, the present invention is not limited to the embodiments, and all modifications made in the spirit and technical idea of the present invention are also included in the present invention. Needless to say.
Further, in the present invention, the surface treatment for spraying metals onto the surface of the printing apparatus member and attaching metal particles to the surface has been described. However, the surface treatment by spraying is replaced with a method such as sandblasting or fine cutting. At the expense of abrasion resistance, the surface of a printing device member made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP is directly polished, cut, etc. to roughen the surface to form an uneven shape. A method of coating the uneven surface with a fluorine resin or a silicone resin so that a part of the convex portion on the surface protrudes and is exposed can also be applied in the present invention. This method does not use expensive hard metal to be sprayed, but directly grinds and cuts the surface of the member for the printing apparatus, and uses the member in the printing apparatus. Abrasion resistance is lower than that of cemented carbide, but there is an advantage that it can be manufactured at low cost.
[0036]
【The invention's effect】
As described above, the printing apparatus member of the present invention is composed of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP, and has a metal compound of a tungsten compound, a molybdenum compound, and a chromium compound on the surface of the member. Is sprayed, and the sprayed surface is coated with a fluorine-based resin or a silicone resin, and a part of the sprayed metals is exposed to the surface from the coated surface of the resin. . Metals exposed on the surface have very good conductivity, so they have excellent antistatic properties, excellent water repellency and oil repellency of the coating resin, and excellent properties such as non-adhesion and solvent resistance. A member for a printing apparatus that makes use of the present invention is obtained. Further, the metal particles that are exposed and protruded on the surface of the member have extremely high hardness, have a small amount of abrasion, have a long life, and are not deteriorated in quality even in contact with a printing film.
[Brief description of the drawings]
FIG. 1 is a partially enlarged schematic view showing one embodiment of a printing apparatus member according to the present invention.
FIG. 2 is a partially enlarged schematic view showing another embodiment of a member for a printing apparatus according to the present invention.
FIG. 3 is a schematic view showing one embodiment of a printing apparatus according to the present invention.
[Explanation of symbols]
1 Components for printing devices
2 Sprayed metal particles
3 Coating resin
4 Surface of printing device members
5 Printer
6 Rewind paper feed section
7 Printing department
8 Drying section
9 Paper output unit
10 Guide roll
11 Cooling roll
12 Ink pan
13 Printing film
14 Liquid ink
15 Gravure plate cylinder
16 impression cylinder

Claims (4)

Iron, stainless steel, aluminum, in a member for a printing apparatus made of a conductive metal mainly composed of CFRP, a metal compound of a tungsten compound, a molybdenum compound, a chromium compound, an alloy or a cermet containing the same is sprayed on the surface of the member, A member for a printing apparatus, wherein a sprayed surface is coated with a fluorine-based resin or a silicone resin, and a part of the sprayed metal is exposed from a surface coated with the resin. In a surface treatment method for a printing apparatus member made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP, a metal compound of a tungsten compound, a molybdenum compound, and a chromium compound, and an alloy or a cermet containing the compound are sprayed on the surface. A method of coating a surface of a member for a printing apparatus, wherein the surface of the sprayed metal is coated with a fluorine-based resin or a silicone resin to such an extent that a portion of the sprayed metal is exposed to the surface. . In a surface treatment method for a printing apparatus member made of a conductive metal mainly composed of iron, stainless steel, aluminum, and CFRP, a metal compound of a tungsten compound, a molybdenum compound, and a chromium compound, and an alloy or a cermet containing the compound are sprayed on the surface. Then, the sprayed surface is coated with a fluorine-based resin or a silicone resin, and thereafter, the coated surface of the resin is polished to expose a part of the sprayed metals to the surface. A surface treatment method for a member for a printing apparatus. A winding device for supplying a film raw material, wherein the member for a printing device according to claim 1 is used as a roll and / or an ink pan for storing ink when the printing film is conveyed. A paper unit, a cylindrical intaglio type gravure plate cylinder, a printing unit provided with an ink pan for supplying liquid ink, a drying unit for drying the printed ink, and a paper discharging unit are mainly configured. A printing device characterized by the above-mentioned.

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