Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
  • B29C59/08—Surface shaping of articles, e.g. embossing; Apparatus therefor by flame treatment ; using hot gases
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D1/00—Processes for applying liquids or other fluent materials
  • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D1/00—Processes for applying liquids or other fluent materials
  • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
  • B05D1/08—Flame spraying
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2201/00—Polymeric substrate or laminate
  • B05D2201/02—Polymeric substrate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
  • B29L2031/3005—Body finishings

Definitions

• the present invention relates to a surface treatment apparatus and a surface treatment method, and more particularly, to a surface treatment apparatus and a surface treatment method for a poorly adherent substrate such as a vehicle part.
• Hard-to-adhesive materials such as silicone resin, fluororesin, polyethylene resin, and urethane resin are often used for vehicle parts and the like. It is often water-repellent, and surface treatment such as adhesion of other members, printing, and UV coating is generally difficult. In particular, when these difficult-to-adhesive materials are three-dimensionally processed or foamed, the surface structure of the poor-adhesion base material is complicated and not smooth, and it is difficult to adhere to other members. There was a problem.
• a silane coupling agent or a titanium coupling agent is used as a method of improving the surface characteristics of a poorly adherent base material made of such a poorly adherent material.
• a primer treatment using an immersion device or a spray device a silane coupling agent or a titanium coupling agent is used.
• agents are applied to the surface.
• UV irradiation, corona discharge treatment, plasma treatment, surface-sensitive grouping, surface light grafting are used as surface modification methods for hard-to-adhere substrates instead of primer treatment and coupling agent treatment.
• Method, sand blast method, solvent treatment, black Various surface modification methods such as a mixed solution of humic acid have been studied.
• Japanese Patent Application Laid-Open No. 5-68934 discloses that the surface of a hydrophobic plastic is irradiated with ultraviolet rays using a synthetic quartz high-pressure mercury lamp to improve the wettability and adhesion of the coating.
• the technology is disclosed.
• U.S. Pat. No. 5,098,618, under a mixed gas an outer line having a wavelength of 185 nm and a wavelength of 254 nm is selectively formed on a surface of a hydrophobic plastic.
• Japanese Patent Application Laid-Open No. Hei 8-109228 discloses that in order to improve the dyeability, the surface of a polyolefin resin or the like is treated with an ozone treatment, a plasma treatment, a corona treatment, a high-pressure discharge treatment, an ultraviolet irradiation, or the like.
• a method for grafting a vinyl monomer after performing a surface activation treatment is disclosed.
• the inventors of the present invention using a burner, mainly use a burner to cover the surface of a solid substrate of a metal or glass product as disclosed in DE 01000 926 A1.
• a method of modifying the surface of a solid substrate comprising: a step of modifying the surface by at least one oxidation flame treatment; and a step of modifying the surface by at least one gay oxidation flame treatment is proposed.
• the surface of the solid substrate can be surely subjected to a modification treatment. It is possible to obtain an effect that a UV-curable paint or the like can be firmly bonded.
• the disclosed method of modifying the surface of a solid substrate uses an alkoxysilane compound such as tetramethoxysilane (boiling point: 122 ° C.) having a high boiling point alone as the silane compound.
• an alkoxysilane compound such as tetramethoxysilane (boiling point: 122 ° C.) having a high boiling point alone as the silane compound.
• the inventors have made intensive efforts to use a reversal table and perform a flame treatment derived from a fuel gas containing a silane compound, so that a large hard-to-adhesive substrate such as a vehicle part can be applied to the substrate.
• a large hard-to-adhesive substrate such as a vehicle part can be applied to the substrate.
• surface treatment can be performed extremely quickly and efficiently, and have completed the present invention.
• the present invention provides a quick and efficient surface treatment to a poorly adherent base material such as a vehicle part, and a foam layer, a cushion layer (intermediate layer), and a decorative layer on the base material.
• An object of the present invention is to provide a surface treatment apparatus and a surface treatment method that can be bonded. Disclosure of the invention
• a surface treatment apparatus for a poorly adherent substrate comprising: a flame generating section and a substrate processing section, wherein the flame generating section supplies a fuel gas containing a silane compound. And a fuel injection device for injecting a flame derived from the fuel gas.
• the base material treatment section fixes the hard-to-adhesive base material, and before and after the surface treatment.
• a surface treatment apparatus including a reversing table for rotating and moving a base material around a predetermined horizontal axis.
• the reversing table has a substantially flat plate shape, and has a fixture on both sides thereof.
• the material is fixed.
• the flame generating section and the base material treating section are substantially housed inside the housing, and the reversing table is provided by the reversing table. It is preferable to form a part of the housing.
• the shape of the hard-to-adhere substrate is stored in advance, and control for moving the position of the flame generating unit is performed based on the stored information on the shape.
• it is equipped with a device.
• Another aspect of the present invention relates to a surface treatment method using a surface treatment apparatus including a flame generation unit, a base material treatment unit, and a fuel gas containing a silane compound from the flame generation unit.
• a surface treatment apparatus including a flame generation unit, a base material treatment unit, and a fuel gas containing a silane compound from the flame generation unit.
• Injecting the flame derived from the process irradiating the flame with the hard-to-adhere substrate fixed to the reversing table in the substrate processing section, and rotating the reversing table about a predetermined horizontal axis Removing the surface-treated hard-to-adhesive base material after the surface treatment.
• the poorly-adhesive substrate is composed of at least one resin of an olefin resin, a urethane resin, a fluororesin, a silicone resin, or a polyester resin. Is preferred. BRIEF DESCRIPTION OF THE FIGURES
• FIG. 1 is a diagram provided for explaining a surface treatment apparatus according to a first embodiment of the present invention.
• FIG. 2 is a diagram provided to explain a surface treatment method using the surface treatment device of the present invention.
• FIG. 3 is a diagram provided for explaining a flame generating unit of the surface treatment apparatus of the present invention. It is.
• FIG. 4 is a perspective view of the in-front panel.
• FIG. 5 is a perspective view of the door.
• FIG. 6 is a perspective view of the seat.
• FIG. 7 is a perspective view of the console box.
• FIG. 8 is a perspective view of an interior material mounted on a door.
• FIG. 9 is a perspective view of the bumper.
• FIG. 10 is a perspective view of the ornament.
• FIG. 11 is a diagram provided to explain a method of forming a decorative member by slush powder molding (part 1).
• FIG. 12 is a view provided to explain a method of slush powder forming a decorative member (part 2).
• FIG. 13 is a diagram provided to explain a method for manufacturing a three-dimensional decorative body using the surface treatment apparatus according to the present invention.
• FIG. 14 is a diagram provided for explaining a three-dimensional decorative body.
• FIG. 15 is a diagram provided to explain a method of stacking decorative members when creating a three-dimensional decorative body.
• the first embodiment is, as exemplified in FIGS. 1 and 2, a surface treatment apparatus 10 including: a flame generator, a base material processor, and a silane compound.
• a fuel tank 9 for supplying a fuel gas containing the fuel gas, and an injection device 12 for injecting a flame 8 derived from the fuel gas, and the substrate processing section fixes the hardly adherent base material.
• an anti-adhesive base material is rotated to move along the predetermined horizontal axis 20.
• a surface treatment apparatus 10 comprising a turntable 18. 1. Flame generator
• the flame generating section includes a storage section including a storage tank 9 and a control device for storing the silane compound, a transfer section including a transfer pipe 7 for transferring the fuel gas, and a fuel gas transfer section. It is preferable to have a configuration including: an injection unit including an injection device 12 for blowing the flame 8; and a drive unit including a drive device 13 for appropriately moving the position of the injection device 12.
• the flame generating section has a heating means 36, a first storage tank 32 for storing the silane compound 34, and a first storage tank 32 for storing a flammable gas such as compressed air.
• a second storage tank (not shown) is provided.
• a heating means 36 comprising a heater, a heat transfer wire, or a heating plate connected to a heat exchanger is provided below the first storage tank 32, and is a liquid at normal temperature and normal pressure.
• the silane compound 34 is vaporized.
• the heating means 36 heats the silane compound 34 in the first storage tank 32 to a predetermined temperature, and in a state in which the silane compound 34 is vaporized, It is preferable to mix with gas (air, etc.) to produce combustion gas.
• a pressure gauge (or a liquid level gauge) is provided in the first storage tank 32 in order to indirectly control the content of the silane compound. It is preferable to provide 38 to monitor the vapor pressure (or the amount of the silane compound) of the silane compound.
• a silane compound is used as a part of the fuel gas.
• the boiling point (atmospheric pressure) of the silane compound used is set to a value within the range of 100 to 100 ° C. preferable.
• the boiling point of the silane compound is more preferably set to a value within a range of 15 to 80 ° C, and further preferably set to a value within a range of 20 to 60 ° C.
• the boiling point of such a silane compound can be adjusted by limiting the structure of the silane compound itself.
• an alkylsilane compound having a relatively low boiling point and an alkoxysilane having a relatively high boiling point can be adjusted. It can also be adjusted by appropriately mixing and using a compound or the like.
• the type of the silane compound is not particularly limited, and examples thereof include an alkylsilane compound and an alkoxysilane compound, and modified products thereof.
• alkylsilane compounds are generally preferred because they generally have a low boiling point and can be easily vaporized by heating and uniformly mixed with air or the like.
• alkylsilane compound examples include tetramethylsilane, tetraethylsilane, 1,2-dichlorotetramethylsilane, 1,2-diphenyltetramethylsilane, 1,2-dichlorotetraethylsilane, and 1,2-dichlorotetramethylsilane.
• 2-diphenyltetraethylsilane, 1,2,3-trichlorotetramethylsilane, 1,2,3-triphenyltetramethylsilane, dimethyl getyltetrasilane, etc. alone or in combination of two or more. It is.
• silane compounds are preferred silane compounds because they have a particularly low boiling point and are easily mixed with air or the like, and 1,2-dichlorotetramethylsilane and the like are preferred.
• the halogenated silane compound is a preferable silane compound because the surface modification effect is particularly excellent.
• the alkoxysilane compounds generally have a high boiling point due to their ester structure, but as long as the boiling point is within the range of 10 to 100 ° C., the adhesion is poor.
• the silane compound is a preferable silane compound because it can exhibit a more excellent surface modifying effect on a conductive substrate.
• the average molecular weight of the silane compound is preferably set to a value within a range of 50 to 1,000 in mass spectrometry.
• the average molecular weight of the silane compound is more preferably set to a value in the range of 60 to 500, and more preferably to a value in the range of 70 to 200, in the mass spectrum measurement.
• the density of the silane compound in the liquid state is preferably set to a value in the range of 0.3 to 0.9 gZcm 3 .
• the reason for this is that if the density of such a silane compound is less than 0.3 gZcm 3 , it may be difficult to handle it or it may be difficult to store it in an aerosol can. On the other hand, if the density of the silane compound exceeds 0.9 gZ cm 3 , it becomes difficult to vaporize, and when stored in an aerosol can, the silane compound may be completely separated from air and the like.
• the density of the silane compound is more preferable to set the density of the silane compound to a value within the range of 0. 4 ⁇ 0. 8 gZcm 3 , 0. 5 ⁇ 0. 7 gZc values and to Rukoto in the range of m 3 and more preferably .
• the transfer section is usually a tubular structure, and as shown in FIG. 3, has been transferred from the silane compound 34 transferred from the first storage tank 32 and from the second storage tank (not shown). Equipped with a mixing chamber 42 for uniformly mixing flammable gas (air) into combustion gas, and a valve for controlling the flow rate It is preferable that a pressure gauge 48 for controlling the pressure of the combustion gas be provided.
• a mixing pump and a baffle plate for extending the residence time are provided in the mixing chamber 42 so that the silane compound and the flammable gas are uniformly mixed at a predetermined ratio and the flow rate can be strictly controlled. It is also preferable to provide.
• the injection section burns the combustion gas sent through the transfer section 44, and sprays the resulting flame 8 onto the non-adhesive base material to be processed.
• an injection device 12 for example, a burner.
• the type of such a burner is not particularly limited, but may be any of a premixed burner, a diffusion burner, a partially premixed burner, a spray burner, an evaporative burner, and a pulverized coal burner.
• the shape of the burner is not particularly limited. For example, as shown in FIG. 3, the burner may be enlarged toward the front end and may have a fan-shaped configuration as a whole, or may have a generally rectangular shape. However, the burner may be a burner in which the injection ports are arranged in a lateral direction.
• the arrangement of the injection section that is, the arrangement and number of the burners are determined in consideration of the shape, size, weight, and the like of the non-adhesive base material to be processed, and furthermore, the surface of the non-adhesive base material is modified. It is preferable to determine in consideration of easiness of quality and the like.
• the flame generating unit includes a driving unit including a driving device so that at least the position of the injection device can be changed in order to appropriately surface-treat the poorly adherent substrate.
• the flame generating unit includes, for example, an arm robot 13 as shown in FIG. 2 as a driving device so that the flame generating unit can freely move three-dimensionally even when a predetermined flame is injected from the injection device. Is preferred.
• the length and the position of the arm are appropriately controlled so that the distance between the vertical position and the poorly adherent base material is always set within a predetermined range. The reason is that by controlling so as to maintain such a positional relationship, it is possible to always achieve uniform surface treatment conditions.
• such an arm robot is provided on a pedestal 16, and it is preferable that the lower surface of the pedestal 16 further include wheels 16 a and rails 16 b.
• the reason for this is that the position of the arm robot system can be moved quickly and smoothly even in the horizontal direction by the cooperation of the base 16 and the wheels 16a and the rails 16b. Therefore, the flame generating portion can freely move three-dimensionally and change its position according to the shape and size of the hard-to-adhesive base material, so that the surface treatment of the hard-to-adhesive base material is uniform and uniform. Can do enough.
• the flame generating section is provided with an ignition device and a flame detecting means (not shown) in addition to an injection device for blowing the flame of the fuel gas, and irradiates the flame at an arbitrary time, or the flame in the flame generating section. It is preferable to detect the irradiation state.
• the reason for this is that by repeating ignition and extinguishing very finely in synchronization with the base material processing section described later, fuel gas consumption can be reduced and the amount of generated carbon dioxide can be reduced.
• the state is detected by the flame detecting means provided in the flame generating section, and the flame irradiation at the flame generating section is performed by the safety device. It is preferable to stop it steadily or to re-ignite it depending on the conditions.
• a pilot ignition device The pilot igniter 1 2a is equipped with a normal combustion gas and is always ignited, and is an injection device that injects a flame 8 for performing gay oxidation flame treatment. In this case, it is preferable to ignite via the pilot ignition device 12a at an arbitrary time, for example, immediately before performing the gay oxidation flame treatment.
• the reason is that it is possible to ignite the injection device only by bringing the injection device close to the flame of the pilot ignition device. Therefore, by providing such a pilot ignition device, the ignition system of the injection device can be simplified and the life thereof can be extended.
• the flame generating unit includes a position control system of the arm robot, a shape storage device of the object to be processed, and the like as its control device.
• the reason for this is that by providing such a control device, it is possible to accurately recognize the location of the non-adhesive base material to be processed, and furthermore, regardless of the shape and size of the non-adhesive base material. This is because uniform and rapid surface treatment can be performed in the flame generating section.
• control device in the flame generating unit also serves as the control device in the base material processing unit. That is, it is preferable that the control device in the flame generating section performs the flame processing while controlling the position of the arm robot in the flame generating section in synchronization with the operation of the base material processing section.
• the surface reforming apparatus includes a reversing table that rotates or semi-rotates along a predetermined horizontal axis 20 in a substrate processing unit. It is preferable to carry out the surface modification of the poorly adherent base material using the reversing table 18. ,
• the reversing table mainly includes a base member mounting portion 18 (18a, 18b), a rotary jig 22 including a horizontal axis 20 and a control device. It is preferable to comprise the device 28 and an angle adjusting member (not shown).
• the work efficiency can be significantly improved by using the reversal table having such a configuration. That is, the position of the reversing table is determined by the rotating jig controlled and held by the control device and the angle adjusting member, and the fixing, the rotational movement, and the surface treatment of the poorly adherent base material can be quickly performed. This is because we can do it.
• the reversing table forms a part of a housing 17 for housing the surface reforming device. That is, when the reversing table 18 is performing surface treatment with the hard-to-adhesive base material (A) fixed, for example, when the reversing table 18 is positioned in the vertical direction, The table 18 preferably functions as a part of the wall of the housing 17.
• the reversing table is provided with fixtures 26 and 27, and the surface modification is performed by the fixtures 26 and 27 while the hardly adherent base material is held at a predetermined position. It is preferred to carry out.
• the reason for this is that by using the reversing table provided with such a fixing device, even when the hard-to-adhesive base material is fixed to the reversing table and rotated, it is difficult to displace, and it is difficult This is because the surface modification can be accurately performed on the adhesive base material.
• the shape of the fixing device is not particularly limited, but as shown in FIG. 1, a claw-like portion 26 that can be easily fixed, or even a single claw-shaped portion 26, is firmly fixed. It is preferable to comprise a possible stopper 27 or the like.
• At least the flame generating section and the base material processing section are substantially accommodated in the housing 17 as shown in FIGS.
• the reason for this is that by providing such a housing and providing a flame generating unit and a base material processing unit therein, a safe working environment can be provided. Therefore, it is possible for the worker to work without worrying about the flame, heat, etc. in the flame generating section.
• the fuel tank 9 of the flame generating section and a part of the control device are fixed outside the housing 17, more preferably, close to the outer wall of the housing 17. It is preferable to place it at location 11.
• the housing 17 has a structure in which the moving means 1a, for example, a roller or a rail is provided at a lower position thereof, or an external moving means, for example, a forklift or the like, is capable of moving. Is preferred.
• the moving means 1a for example, a roller or a rail is provided at a lower position thereof, or an external moving means, for example, a forklift or the like, is capable of moving.
• an external moving means for example, a forklift or the like
• the reason for this is that by providing such a moving means or the like, the surface reforming apparatus of the present invention can be easily and quickly moved to an arbitrary place while being housed inside the housing. . Therefore, it can be easily arranged near the molding machine for hard-to-adhesive base materials, or near the coating device for hard-to-adhesive base materials.
• the entire processing system, from to decoration, can be configured arbitrarily and conveniently.
• the type of the poorly-adhesive base material used in the first embodiment is not particularly limited.
• gay oxidation flame treatment is particularly applied to polyethylene resin, polypropylene resin, polyester resin, polycarbonate resin, polytetrafluoroethylene resin, etc., which have a large contact angle and a small wetting index. By doing so, an excellent reforming effect can be exhibited.
• a filler such as a metal material, an inorganic filler, or a fiber to the poorly adhesive substrate.
• a metal material such as aluminum, magnesium, stainless steel, nickel, chromium, tungsten, gold, copper, iron, silver, zinc, tin, and lead, or a combination of two or more metal materials is preferable.
• the fiber one kind of carbon fiber, aramide fiber, glass fiber, polyester fiber, polyamide fiber, metal fiber, ceramic fiber, etc., or a combination of two or more kinds is preferable.
• the addition amount is set to a value within the range of 0.01 to 80% by weight based on the total amount. It is more preferably set to a value within the range of 0.1 to 50% by weight, and even more preferably set to a value within the range of 1 to 30% by weight.
• the form of the poorly adherent substrate is not particularly limited as long as it is three-dimensional.
• Examples of the form include a tube, a column, a sphere, a block, a tube, a pipe, an uneven shape, a film, and a fiber. Shape, woven shape, bundle shape, etc. are preferred.
• Vehicle parts such as interior material 105 attached to the door as shown in FIG. 8, bumper 106 as shown in FIG. 9, and ornament 107 as shown in FIG. May be.
• the poorly-adhesive base material may partially have a planar structure such as a plate shape, a sheet shape, a film shape, a tape shape, a strip shape, a panel shape, and a string shape.
• the decorative member to be laminated on the surface-treated hard-to-adhere substrate is made of at least one resin selected from epoxy resin, vinyl chloride resin, acrylic resin, olefin resin, urethane resin, poly-polycarbonate resin, and polyester resin.
• resin selected from epoxy resin, vinyl chloride resin, acrylic resin, olefin resin, urethane resin, poly-polycarbonate resin, and polyester resin.
• the thickness of the decorative member is set to a value within a range of 10 to 500 / m. The reason is that when the thickness of the decorative member is less than 10 ⁇ m, the mechanical strength and durability of the decorative member may be significantly reduced. On the other hand, if the thickness of the decorative member exceeds 500 / m, handling and bonding may become difficult. Therefore, it is more preferable to set the thickness of the decorative member to a value in the range of 25 to 300 // m.
• the form of the decorative member is preferably a flat film because of its adhesive property and easy handling.
• the surface of the decorative member has an embossed surface or an opening (including a slit). ) Is also preferably provided.
• a predetermined printing or coloring is applied to the surface or inside of the decorative member.
• the decorative member is formed by powder slush molding as shown in FIGS. 11 (a) to (c) and FIGS. 12 (a) to (c).
• a decorative member formed by powder slush has an excellent three-dimensional appearance, retains a special shape, and has a large dimension (for example, a width of 1 m or more) to a small dimension (for example, a width of 1 mm). This is because a decorative member of any size up to 0 cm or less can be provided.
• the decorative member 94 when the decorative member 94 is laminated on the surface of the surface-treated hardly-adhesive base material 58, the hard-adhesive base material 58 and the decorative member 94 are not laminated. It is also preferable to provide a primer layer, an adhesion improving layer, or a foam layer and a cushion layer as the intermediate layer 56 therebetween.
• the reason for this is that by providing a primer layer and an adhesion improving layer, the adhesive strength between the poorly adhesive substrate and the decorative member can be significantly improved. Further, by providing a foam layer or a cushion layer, it is possible to provide a surface treatment apparatus which is more excellent in three-dimensional appearance and has an appropriate cushioning property.
• the type of the intermediate layer is not particularly limited, and examples thereof include a urethane resin, an epoxy resin, an acrylic resin, a silane coupling agent, and a polyester resin.
• the thickness of the intermediate layer depends on its function.
• the thickness is preferably in the range of 0.1 to 100 m
• the thickness of the foam layer In the case of a cushion layer or a cushion layer, the value is preferably in the range of 0.1 to 1 O mm.
• the second embodiment includes a flame generating section and a base material processing section, and includes a surface processing method using a surface processing apparatus having an inversion table. It is a surface treatment method characterized by including the following steps (1) to (3).
• the flame generator From the flame generator, the flame derived from the fuel gas containing the silane compound Injecting step (hereinafter sometimes referred to as the first step)
• a step of performing surface treatment by irradiating flame with the hardly adherent substrate fixed to the reversing table (hereinafter sometimes referred to as a second step) .)
• a step of rotating the reversing table about a predetermined horizontal axis and then taking out the surface-treated hardly adherent base material (hereinafter, may be referred to as a third step).
• the same silane compound or flammable gas as in the first embodiment can be used as the fuel gas.
• the amount of the silane compound to be added is preferably set to a value within the range of 1 xicr 1D to 10 mol 0 / o, where the total amount of the combustion gas is 100 mol%.
• the reason for this is that if the added amount of the silane compound is less than 1 ⁇ 10 ⁇ 1 () mol ⁇ 1 ⁇ 2, the effect of modifying the poorly adherent substrate may not be exhibited.
• the addition amount of the silane compound exceeds 10 mol%, the miscibility of the silane compound with air or the like is reduced, and the silane compound may be incompletely burned.
• the addition amount of the silane compound when was the total amount to 1 0 0 mole% and Les combustion gas, 1 X 1 0- 9 ⁇ lay it favored good Li to a value within the range of 5 mol%, and even more preferably to a value within the range of 1 X 1 0- 8 ⁇ ⁇ mol%.
• a flammable gas examples include hydrocarbon gas such as bun pan gas and natural gas, and flammable gas such as hydrogen, oxygen, and air.
• propane gas and compressed air as such flammable gas.
• the content of such flammable gases when the total amount of the combustion gas and 1 0 0 molar 0 / o, a value in a range of 8 0-9 9.9 mole 0 / o It is preferable.
• the reason for this is that when the content of the flammable gas is less than 80 mol%, the miscibility of the silane compound with air or the like is reduced, and the silane compound may incompletely burn. .
• the addition amount of the silane compound exceeds 99.9 mol%, the effect of modifying the poorly adherent base material may not be exhibited.
• the addition amount of the silane compound be a value within the range of 85 to 99 mol%, where the total amount of the combustion gas is 100 mol%. More preferably, the value is in the range of mol%.
• a carrier gas in order to uniformly mix the silane compound in the combustion gas. That is, it is preferable that the silane compound and the carrier gas are mixed in advance, and then mixed with a flammable gas such as an air stream.
• the reason for this is that by adding such a carrier gas, even when a silane compound is used, which has a relatively large molecular weight and is difficult to move, it can be uniformly mixed with an air flow. That is, by adding the carrier gas, the silane compound is easily burned, and the surface modification of the poorly adherent substrate can be uniformly and sufficiently performed.
• the same kind of gas as the flammable gas includes air, oxygen, and hydrocarbons such as propane gas and natural gas.
• the flame temperature of the gay oxidation flame treatment is preferably set to a value within the range of 500 to 1,500 ° C.
• the flame temperature is less than 500 ° C., it may be difficult to effectively prevent incomplete combustion of the silane compound ( while the temperature of the flame is lower than 500 ° C.). If the temperature exceeds 1,500 ° C, the difficult-to-adhesive substrate to be surface-modified may be deformed or deteriorated by heat. This is because it may be restricted to. Therefore, it is preferable to set the flame temperature to a value in the range of 550 to 1,200 ° C, and more preferably to a value in the range of 600 to 900 ° C. preferable.
• the flame temperature is a temperature measured at the front end of the flame, and is appropriately determined depending on the type of the combustion gas used, the flow rate of the combustion gas, or the type and amount of the silane compound added to the combustion gas. Can be adjusted. Further, it is preferable to set the flame treatment time (injection time) in the gay oxidation flame treatment to a value within a range of 0.1 second to 100 seconds.
• the reason for this is that if the processing time of such a flame is less than 0.1 second, the reforming effect of the silane compound may not be uniformly developed. On the other hand, if the processing time of such a flame exceeds 100 seconds, the poorly adherent substrate whose surface is to be modified may be thermally deformed or thermally degraded. This is because the type of the base material may be excessively limited.
• the flame treatment time is preferably set to a value in the range of 0.3 to 30 seconds, and more preferably to a value in the range of 0.5 to 20 seconds.
• the reversing table in the vertical direction is rotated by about 90 ° about a predetermined horizontal axis, and FIG. As shown in (c), it is preferable to temporarily set a horizontal state.
• the reason for this is that since the reversing table 18 is in a horizontal state, it is possible to easily mount a hardly-adhesive base material to be processed next on the surface 18 b thereof. That is, even if the poorly adherent base material is large or the shape is complicated, if the reversing table is in a horizontal state, it can be easily detached from one side thereof.
• the reversing table 18 in the horizontal state is rotated by about 90 ° about a predetermined horizontal axis to bring the table into the vertical state again as shown in FIG. 2 (d).
• the reason for this is that by arranging in this manner, the surface-treated hard-to-adhere substrate A can be easily and safely removed from the fixture 26 of the reversing table 18. That is, even a large-sized, difficult-to-adhesive base material having various shapes, such as a vehicle part, can be promptly transferred to the next process from the vertical reversing table 18 as described later.
• Decorative members can be laminated, and predetermined characters and symbols can be easily printed.
• FIG. 11 (a) shows a process in which a metal slush mold 82 having a molding surface 85 is reheated by a heating device 86 using, for example, gas or electricity as a heat source.
• a heating device 86 using, for example, gas or electricity as a heat source.
• the shape of the molding surface 85 of the molding die 84 of the slash die 82 to be used is determined by the shape of the resin molded product to be manufactured.
• Fig. 11 (b) shows a heated slash mold 82 and a reservoir tank 88 containing fluidized powder resin 92, with the molding surface 85 of the mold 84 facing downward. This is a process in which the reservoir tank 88 is integrally connected vertically with the opening surface of the reservoir tank 88 facing upward.
• Fig. 11 (c) shows the slash mold 82 and the reservoir tank 88.
• This is a step of forming a resin film 94 having a predetermined thickness on the molding surface 85 of the molding die 84 of the slash mold 82 by rotating the slash mold 82. That is, it is preferable that the slash mold 82 and the reservoir tank 88 are turned upside down. The reason for this is that the powder resin 92 in the reservoir tank 88 has its own weight, and the molding surface of the mold 84
• the resin 94 falls onto the molding surface 85 and is in contact with the molding surface 85 and the resin 94 to a certain portion to be laminated, the resin 94 becomes molten by the heat of the molding die 84 and adheres to the molding surface 85 as a surface layer. It is.
• FIG. 12 (a) shows the process of removing the reservoir tank 88 from the slash mold 82 with the resin film 94 having a predetermined thickness formed on the mold 84.
• FIG. 12 (b) shows a step of cooling the resin film 94 by cooling the entire slash mold 82 or a part of the molding mold 84 by cooling means 98 such as water cooling or air cooling.
• FIG. 12 (c) shows a step of peeling the resin film 94 from the mold 84, that is, removing the mold.
• the decorative member 94 can be laminated while confirming the state of formation of the intermediate layer 56 by carrying out in this manner, and excellent finish can be obtained.
• the material 57 for the intermediate layer 56 is formed on the poorly adherent base material 58 as shown in FIG. It is also preferable that the decorative member 94 is bonded and fixed and the intermediate layer 56 is simultaneously formed by heating or irradiating ultraviolet rays with the member 94 further laminated thereon.
• a three-dimensionally processed hardly adherent substrate was prepared. That is, a front panel base material for a vehicle (50 cm in length, 200 cm in width, 50 cm in depth) made of polypropylene was prepared.
• a surface treatment apparatus as shown in FIG. 1 was prepared, the reversing table was set in a horizontal state, and the vehicle front panel base material was fixed using a claw-shaped fixing tool and a stopper provided on the reversing table.
• the surface treatment device was operated to perform a gay oxidation flame treatment on the surface of the vehicle front panel base material. That is, the treatment with a flame derived from a fuel gas containing a silane compound (trimethylsilane) is performed so that the intermediate layer and the decorative member can be firmly adhered to the substrate. 0 cm 2 ) for 0.5 seconds.
• a flame derived from a fuel gas containing a silane compound trimethylsilane
• a foamed urethane agent was applied and formed, and a decorative member was formed. Thereafter, the mixture was heated at 30 to 60 ° C. for 1 to 5 minutes to foam the foamed polyurethane agent as an intermediate layer, and the decorative member was adhered to obtain a vehicle front panel.
• the wet index of the vehicle front panel substrate at the stage of performing the gay oxidation flame treatment was measured using a standard solution. Further, the wettability index of the vehicle front panel base material before performing the gay oxidation flame treatment was measured in the same manner.
• the peeling force of the decorative member of the vehicle front panel obtained by forming the foamed polyurethane layer and the decorative member on the vehicle front panel base material was measured by a grid test (JIS standard), and the following criteria were applied. Was evaluated.
• peeling number is 3 to 10
• the number of peels is 11 or more
• Example 2 As shown in Table 1, the type of the non-adhesive base material constituting the vehicle front panel base material and the time of the oxidizing flame treatment for the vehicle front panel base material were changed. In the same manner as in Example 1, the vehicle front panel base and the surface treatment device were evaluated.
• Comparative Example 1 no surface treatment was performed, and in Comparative Example 2, instead of the mixed gas containing the silane compound in Example 1, a fuel gas consisting of compressed air and propane containing no silane compound was used.
• the vehicle front panel base material and the surface treatment device were evaluated in the same manner as in Example 1 except for using the same.
• a flame treatment derived from a fuel gas containing a silane compound is performed on the surface of the hardly adherent base material, so that a special primer treatment or the like can be performed.
• a strong adhesive force can be obtained between the hardly-adhesive base material and the decorative member via the intermediate layer without performing the method.
• a special primer treatment or the like is performed by subjecting the surface of the three-dimensionally processed hard-to-adhere substrate to a flame treatment derived from a fuel gas containing a silane compound. Without this, a strong adhesive force can be obtained between the three-dimensionally processed hardly adherent base material and the decorative member.
• the poorly adherent substrate that had been surface-treated by the surface treatment apparatus and the surface treatment method of the present invention maintained its surface treatment effect even two months after the surface treatment.

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• 2002
  • 2002-10-23 WO PCT/JP2002/010971 patent/WO2004037518A1/ja not_active Application Discontinuation
  • 2002-10-23 CN CNB028082389A patent/CN100360302C/zh not_active Expired - Fee Related
  • 2002-10-23 JP JP2004546368A patent/JP3893394B2/ja not_active Expired - Fee Related
  • 2002-10-23 AU AU2002338191A patent/AU2002338191A1/en not_active Abandoned
  • 2002-10-23 KR KR1020037008131A patent/KR100681672B1/ko active IP Right Grant

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