JPH10278072A - Transfer sheet, molding and molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transfer two functional members of a photocatalyst and luminescent material to an arbitrary object by coating a surface of a sheet base material with mold release material, and providing the photocatalyst and luminescent material on the release material. SOLUTION: One side surface of a sheet base material 2 is coated by a roller 24 with mold release material 3 supplied from a mold release material storage tank 23 on the way of feeding the material 2 from a delivery roller 20 and moving it toward a take-up roller 21. Thereafter, powder particles of photocatalyst and luminescent material are supplied individually or at the same timing as functional members 1 from a hopper 25 onto a layer of the material 3 to the state that the members 1 are placed on a layer of the material 3. Thereafter, it is pressed by a pressure roller 26 to bury at least part of the members 1 in the material 3. A layer of the material 3 is solidified, the members 1 are fixed onto the material 2, and taken up on a take-up roller 21 as a transfer sheet 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer sheet provided with two functional members, one of an antibacterial member and a phosphorescent member, or a photocatalyst and a phosphorescent member, and a resin member, a ceramic member or a rubber member. At the time of injection molding, etc., the transfer sheet is loaded into the cavity of the mold, and at the same time as the injection molding of the softening member, one of the antibacterial member and the phosphorescent member, or the photocatalyst and the phosphorescent member, The present invention relates to a molded product obtained by transferring two functional members together and a molding method thereof.

[0002]

2. Description of the Related Art Conventionally, a method of arranging one of an antibacterial member and a photocatalyst functional member on the surface of a sheet base made of cloth, paper, metal foil, resin member, or the like, or a molded product or the like is known. For example, a coating means such as coating, printing (screen printing, gravure printing), spraying, dipping, or the like is used by incorporating a functional material into an adhesive or paint. Japanese Patent Application Laid-Open No. HEI 6-158002 proposes an antibacterial member mixed in a sheet substrate. Furthermore, a method of obtaining a molded article by injecting an antibacterial member into a resin member in advance and performing injection molding is often used. Japanese Patent Application Laid-Open No. 7-290448 proposes a configuration in which an adhesive layer is provided on one side of a sheet substrate and a decorative layer is provided on the other side as an in-mold decorative molded product sheet.

[0003]

However, a method of applying and printing a functional material in an adhesive or a paint by including the functional material cannot be applied simultaneously with molding in an injection molding process, and is carried out in a separate process. In addition, a method in which an antibacterial member is mixed into a sheet base material, or a method in which an antibacterial member is preliminarily mixed in a resin member and injection molding is performed to obtain a molded product is performed on the surface of the sheet base material or the surface of the molded product. There are few exposed antibacterial members and the antibacterial effect is small. Further, a large amount of the antibacterial member mixed into the sheet base is required. Further, in the case of a sheet for an in-mold decorative molded article, it is difficult to perform close contact processing between the sheet base material and the molded article, and wrinkles are generated and the shape of the molded article is restricted.

[0004] On the other hand, there has not been proposed a transfer sheet having either one of an antibacterial member and a phosphorescent member or a photocatalyst and a phosphorescent member on the surface of a sheet substrate.

The present invention provides a transfer sheet provided with one of two functional members of an antibacterial member and a light storage member or a photocatalyst and a light storage member. The purpose is to make it possible. Also,
The transfer sheet is set in an injection mold, and the functional member disposed on the surface of the transfer sheet is transferred or embedded in the surface of the molded article by injection molding of the softening member at the same time as molding. Further, the transfer sheet is set in an injection molding die, and the functional member provided in the injection molding process by being included in the adhesive on the surface of the transfer sheet together with the adhesive on the surface of the molded product is 0.1 μm to The purpose is to transfer a thin film of 30 μm.

According to the present invention, the antibacterial action of the functional member,
An object of the present invention is to efficiently exhibit a decomposition action of pollutants such as nitrogen oxides and a self-luminous function after power is turned off, and reduce the amount of functional members used. It is another object of the present invention to stabilize the molding process, shorten the molding cycle, and arbitrarily shape the molded article without adhering the sheet base material to the surface of the molded article.

[0007]

Means for Solving the Problems To solve the above problems, the transfer sheet of the present invention comprises: (1) A release material is applied to the surface of a sheet substrate, and a photocatalyst, an antibacterial member or Among the light storage members, a configuration including a functional member combining two types was adopted. (2) A release material was applied on the surface of the sheet substrate, and the mixture of the functional member and the adhesive was further applied on the release material. (3) A release material layer and an adhesive layer (adhesive layer) were sequentially applied on the surface of the sheet base material, and the functional member was embedded in the adhesive layer.

The molded article and the molding method of the present invention are as follows: (1) A functional member (a photocatalyst, an antibacterial member, or a phosphorescent member, a combination of two types) is formed on a release material applied to a sheet substrate. The transfer sheet provided was placed in a mold, and one of a resin member, a ceramics member, and a rubber member was injection-molded to obtain a molded product in which the functional member was transferred to the surface. (2) A transfer sheet provided with a phosphorescent member on a release material applied to a sheet substrate is placed in a mold, and one of a ceramic member and a rubber member is injection-molded to form a molded product. A molded article was obtained by transferring the functional member to the surface. (3) A transfer sheet comprising two functional members combined on a release material applied to a sheet base is placed in a mold, and any one of a resin member, a ceramic member, and a rubber member is used. An injection molding method was adopted in which the member was injected and the functional member was transferred to the surface of the molded article simultaneously with the molding.

In the above construction of the present invention, the sheet substrate may be a film or sheet made of any resin member. For example, if the thickness is 3 μm to 100 μm,
PET (polyethylene terephthalate), PE (polyethylene), PP preferably comprising about 16 μm to 40 μm
(Polypropylene), PS (polystyrene), PC (polycarbonate), polyamide, polyimide, polyvinyl chloride, nylon or the like. Of course,
It may be paper, a metal thin film such as AL foil, or cellophane, a rubber sheet, or the like.

As the release material applied to the sheet substrate, various waxes, silicon-based members, fluorine-based members, or the like may be used with a thickness of 0.1 μm to 10 μm, preferably 1 μm.
A release layer is formed by coating (printing (gravure, offset, screen, etc.), spraying, dipping, etc.) to about 3 μm. Of course, acrylic resin (coating amount 2 g / m
2) or a member (coating amount 10 to 11 g / m 2) obtained by adding a copper stalocyanine dye to an amino copolymer resin.

The adhesive (or sizing agent) supporting the functional member includes starch (rice, corn starch, konjac, etc.), gelatin, agar, natural rubber and other natural members, and poval (polyvinyl alcohol / PV).
A) and other water-soluble resin members, rubber members (for example, natural rubber,
Any member such as butyl rubber, an acrylic resin member, an epoxy resin member, vinyl chloride, and a phenol resin may be used. Poval is a white powder made by reacting vinyl acetate resin with alkali and is water-soluble. Sodium polyacrylate, polyvinylpyrrolidone, or the like may be used as another water-soluble plastic paste. It may be a sizing agent CMC (caboxymethylcellulose), methylcellulose, or the like made from a natural product by a scientific reaction. The coating thickness of the adhesive is 1 μm to 30
It is about μm.

The form of the functional member on the release material or contained in the adhesive member (carrier) was powdery or liquid. In addition, the outer dimensions of the antibacterial member or the like in the form of powder particles are set to about 0.05 μm to about 100 μm. The amount added is about 0.5% to 10% by weight.

The antibacterial member is composed of zeolite (antibacterial metal ion / silver, copper, zinc), chitosan, mugwort, hinoki (hinokitiol), hiba, and the like.

The zeolite is prepared by mixing antibacterial ceramics containing a bactericidal substance such as silver, copper, or zinc at a ratio of about several percent of the weight of the adhesive (paste material) or paint, and the surface of a molded product or the like. By adhering and fixing the bacteria, the living environment of bacteria adhered to the molded article is cut off. In addition, the antibacterial member in the form of powder particles is embedded on the release material applied to the sheet substrate,
Alternatively, it goes without saying that the antibacterial effect is remarkably improved by applying a liquid antibacterial member and transferring it to the surface of the molded article.

[0015] Chitosan is a natural polysaccharide often contained in crab shells and shrimp shells and has antibacterial and antifungal properties. A ratio of about 0.3% to about several% by weight is sufficient for embedding as a powder particle on the surface of a molded article, mixing into an adhesive member, or mixing into a solution or water, and a fine particle having a particle size of about 5 μm or less is sufficient. Powder.

The mugwort has a tannin contained in the mugwort which has an antiallergic and antipruritic effect, a chlorophyll (chlorophyll) has a disinfecting and bacteriostatic effect, and the particle size of the mugwort containing an extract of mugwort is about 0.05 μm or more. It may be embedded or applied as a microcapsule of about 20 μm and fixed to the surface of the object.

The cypress plays a role of a preservative to prevent tropilone contained in the cypress from attracting bacteria, mold, etc., and may be used as microcapsules having a particle size of several micrometers as in other antibacterial members.

As a liquid antibacterial member, cypress or Hiba essential oil (essential oil) or metronidazole, or silver acetate or silver nitrate is dissolved in pure water, and K2SO3 and K2S2O3 are sequentially added to the solution.
The solution contains at least one of a silver thiosulfato complex salt and a silver salt. Further, an antibacterial complex in which at least one of silver thiosulfato complex salt or silver salt is supported and adsorbed on hydrated amorphous silicon dioxide, and an outer shell coating layer is further formed on the outer surface thereof, or an organic arsenic binazine or the like. It may be mixed with water or a solvent at a weight ratio of about 0.5% to about 10%, and applied to the release material of the sheet substrate by printing, spraying, or the like. Alternatively, the solvent, the resin member, and the antibacterial member may be kneaded, and applied and printed as ink (adhesive including the antibacterial member).

In addition to the above, as antibacterial members, iodoform, metronidazole, silver silica gel based antibacterial particles, diphenyl ether based or silicon quaternary ammonium salts (trade names ACP-20, TK-520), zirconium phosphate and oxidized Any compound such as a mixture of silver and a compound in which isothiocyanate is used as an antibacterial component and is included in cyclodextrin may be used.

Any member may be used as the photocatalyst.
For example, fine powder particles of a photocatalyst made of titanium dioxide or a mixture of titanium dioxide and activated carbon are used. The fine powder particles of the photocatalyst are directly embedded in the surface of the object.
Of course, it may be included in various kinds of adhesives such as the above-mentioned poval, and may be transferred to the object and disposed. Photocatalyst powder particles,
Alternatively, by disposing a thin film of an adhesive containing a photocatalyst on the surface of the object, the surface can be prevented from being stained, bacteria on the surface can be killed, and the smell attached thereto can be removed. That is, the sun, fluorescent light, etc.
The photocatalyst that has received near-ultraviolet light of 0 nm to 400 nm is activated and oxidizes and decomposes organic substances (acetaldehyde, ammonia, etc.), nitrogen oxides, chlorine compounds, and the like.

The fine powder particles of the photocatalyst comprising titanium dioxide or a mixture of titanium dioxide and activated carbon are 0.001.
It has an outer diameter of from micron to 100 microns. The ratio of the adhesive to be contained is 0.1% by weight to 3% by weight.
It may be about 0% by weight. The coating thickness may be arbitrarily determined according to the purpose of use. For example, it may be applied to a film thickness of 0.5 μm to 100 μm. In the case of screen or gravure printing or the like, a range of several micrometers to 20 micrometers is suitable.

The structure of the photocatalyst is described in, for example,
No. 5853 has been proposed. Here, a highly active photocatalyst is formed by bringing a catalyst carrying a reducing catalytically active component and a photocatalyst carrying an oxidizing catalytically active component into contact with each other, and further contacting a water-repellent substance with one of them. doing. As a specific example, a component having catalytic activity for a reduction reaction of carbon dioxide gas such as copper or mercury is supported on a conductive carrier such as carbon black. Also silver,
A component such as platinum, which has catalytic activity for oxidizing and oxidizing water, is supported on a semiconductor such as titanium dioxide. Then, the two are brought into contact with each other, but recombination of charges is prevented because the active sites are separated. Further, since the water-repellent substance is brought into contact with any of them, the catalyst floats and is present on the surface layer of the aqueous solution to obtain a highly active photocatalyst.

The alkoxide compound of titanium is dissolved in an equimolar amount of ethanol or the like, and hydrolyzed by adding hydrochloric acid or the like. The obtained titanium compound can be formed into any shape without a binder.

The titanium dioxide is preferably an anatase type, but may be a rutile type titanium dioxide metallized with copper, silver, platinum or other metals. Also, W
A photocatalyst may be formed of a semiconductor such as O ↓ 2, Cds, SrTiO ↓ 2, and MoS ↓ 2.

As the phosphorescent member, for example,
N night light or SrAl ↓ 2O ↓ 4: Eu (emission peak wavelength 520 nm, afterglow luminance 300 mcd / m ↑ 2 (20
20 minutes after irradiation with 0 LX for 4 minutes), afterglow time 20
00 minutes or more (time required to decay to 0.32 mcd / m ↑ 2)) or ZNs: Cu, or ZnS, C
Any member such as one or two kinds of sulfide-based phosphorescent members such as dS, CaS, and (ZnCd) S may be used. The supply form may be any form such as a liquid (ink), a fine powder, or a resin particle member including a phosphorescent member.

The coating thickness of a paint or an adhesive (or a binder) containing a phosphorescent member is a minimum of 0.1 μm to 2 μm.
It is about 0 μm. Further, the mixing ratio of the light storage member to be mixed with the adhesive is in a range of about 5 W% to 30 W%. Of course, it goes without saying that the light storage member itself may be embedded in the release material or may be scattered and carried.

According to the present invention, the functional member can be easily transferred to an arbitrary object by the above-described structure. In addition, a functional member or an adhesive containing the functional member can be provided on the surface of the molded article at the same time as molding during the injection molding process. As a result, the antimicrobial member prevents the growth of mold and bacteria, and the photocatalyst decomposes pollutants attached to the atmosphere or to the surface of the molded article, enabling a healthy and comfortable life. In addition, hospital-acquired infections can be reduced. The light storage member (referred to as a light storage phosphor, a light storage paint, a fluorescent pigment, and the like) absorbs and accumulates sunlight and light of a fluorescent lamp, and gradually emits and emits light after being turned off. Therefore, the existence position of the member provided with the light storage member is clarified, and the surroundings are illuminated. Furthermore, the present invention can reduce the amount of the functional member used. Also,
Since the sheet base material is not adhered to the surface of the molded product and there is no wrinkle, the molding process can be stabilized, the molding cycle can be shortened, and the shape of the molded product can be made arbitrary.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that a release material is applied to the surface of a sheet substrate, and a photocatalyst and a light storage member are provided on the release material. This is a transfer sheet, and the photocatalyst and the light storage member can be easily transferred to an arbitrary object. Also, it has the effect that the photocatalyst can be easily transferred to the surface of the molded article during the injection molding process.

According to a second aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet substrate, and a photocatalyst and a light storage member are embedded in the release material.
This has the effect of improving the decomposition action of the photocatalyst and reducing the usage of the photocatalyst and the light storage member.

According to a third aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet base material, and a photocatalyst and a light storage member are further printed on each other.
The photocatalyst and the luminous member can be easily transferred to any object.

According to a fourth aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet substrate, and a mixture of a photocatalyst, a light storage member and an adhesive is further applied thereon. This has the effect that the adhesive containing the photocatalyst and the phosphorescent member can be easily transferred to any object.

The invention according to claim 5 is characterized in that a release material layer and an adhesive layer are successively applied to the surface of the sheet substrate, and a photocatalyst and a luminous member are embedded in the adhesive layer. The transfer sheet has a function of easily transferring an adhesive including a photocatalyst and a light storage member to an arbitrary object.

According to a sixth aspect of the present invention, a transfer sheet including a photocatalyst and a light storage member is arranged in a mold on a release material applied to a sheet substrate, and a resin member is formed by injection molding. The photocatalyst and the luminous member are transferred to the surface of the article, which is a resin molded article, and the photocatalyst is easily disposed on the surface of the article during the molding process. Also, there is no restriction on the shape of the molded product. In addition, it has the effect of reducing the amount of photocatalyst used.

According to a seventh aspect of the present invention, a transfer sheet comprising a phosphorescent member is placed in a mold on a release material applied to a sheet substrate, and a ceramic member is injection-molded. The phosphorescent member is transferred to the ceramic molded product, and the phosphorescent member is easily disposed on the surface of the molded product during the molding process. Also, there is no restriction on the shape of the molded product. In addition, there is an effect that the usage amount of the light storage member can be reduced.

According to an eighth aspect of the present invention, a transfer sheet including a photocatalyst and a phosphorescent member is arranged in a mold on a release material applied to a sheet substrate, and a ceramic member is formed by injection molding. The photocatalyst is transferred to the surface of the article to form a ceramic molded article. The photocatalyst and the phosphorescent member are easily disposed on the surface of the molded article in the molding process.
Also, there is no restriction on the shape of the molded product. Also,
This has the effect of reducing the usage of the photocatalyst and the phosphorescent member.

According to a ninth aspect of the present invention, a transfer sheet including a photocatalyst and a light storage member is disposed in a mold on a release material applied to a sheet substrate, and the transfer sheet is formed of either a resin member or a ceramic member. Injecting one of the members, and the injection molding method characterized in that the photocatalyst and the phosphorescent member were transferred to the surface of the molded article at the same time as molding,
The photocatalyst and the phosphorescent member are easily disposed on the surface of the molded product during the molding process. Also, there is no restriction on the shape of the molded product. Further, it has the effect of reducing the usage of the photocatalyst and the light storage member.

According to a tenth aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet substrate, and an antimicrobial member and a light storage member are provided on the release material. Yes, the antimicrobial member can be easily transferred to any object. Further, it has an effect that the antibacterial member and the phosphorescent member can be easily transferred to the surface of the molded article during the injection molding process.

[0038] The invention according to claim 11 is a transfer sheet, characterized in that a release material is applied to the surface of a sheet substrate, and an antibacterial member and a light storage member are embedded in the release material.
It has the effect of improving the decomposition action of the antibacterial member and reducing the usage of the antibacterial member and the phosphorescent member.

According to a twelfth aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet base material, and an antibacterial member and a phosphorescent member are further printed on each other. This has the effect that the member can be easily transferred to any object.

According to a thirteenth aspect of the present invention, there is provided a transfer sheet characterized in that a release material is applied to the surface of a sheet substrate, and a mixture of an antibacterial member, a phosphorescent member, and an adhesive is further applied thereon. This has the effect that the adhesive containing the antibacterial member and the phosphorescent member can be easily transferred to an arbitrary object.

According to a fourteenth aspect of the present invention, a release material layer and an adhesive layer are sequentially applied to the surface of the sheet base material, and an antibacterial member and a phosphorescent member are embedded in the adhesive layer. The transfer sheet has the function of easily transferring an adhesive containing an antibacterial member and a light storage member to an arbitrary object.

According to a fifteenth aspect of the present invention, a transfer sheet including an antibacterial member and a light storage member is arranged in a mold on a release material applied to a sheet substrate, and a resin member is injection-molded. This is a resin molded product characterized in that the antibacterial member is transferred to the surface of the molded product, and the antibacterial member and the phosphorescent member are easily disposed on the surface of the molded product in the molding process. Also,
There is no restriction on the shape of the molded product. In addition, there is an effect that the amount of use of the antibacterial member and the phosphorescent member can be reduced.

According to a sixteenth aspect of the present invention, a transfer sheet comprising an antibacterial member is placed in a mold on a release material applied to a sheet substrate, and a ceramic member is injection-molded. The antimicrobial member is transferred to the ceramic molded product, and the antimicrobial member is easily disposed on the surface of the molded product during the molding process. Also, there is no restriction on the shape of the molded product. Moreover, it has the effect that the amount of use of the antibacterial member can be reduced.

According to a seventeenth aspect of the present invention, a transfer sheet including an antibacterial member and a light storage member is arranged in a mold on a release material applied to a sheet substrate, and a ceramic member is injection molded. This is a ceramic molded product characterized by transferring the antibacterial member and the phosphorescent member onto the surface of the molded product. The antibacterial member and the phosphorescent member are easily disposed on the surface of the molded product during the molding process. Also, there is no restriction on the shape of the molded product. In addition, there is an effect that the amount of use of the antibacterial member and the phosphorescent member can be reduced.

According to the present invention, a transfer sheet comprising an antibacterial member, a photocatalyst, or a phosphorescent member, or a combination thereof on a base material surface via a release material is disposed in a mold. A rubber molded product, wherein one of the antimicrobial member, the photocatalyst, or the phosphorescent member, or a combination thereof is transferred to the surface of the molded product by injection molding a rubber member. Any one of the member, the photocatalyst, and the phosphorescent member, or a combination thereof, is easily disposed on the surface of the molded article in the molding process. Also, there is no restriction on the shape of the molded product. In addition, it has the effect of reducing the amount of use of antibacterial members and the like.

Hereinafter, a transfer sheet according to an embodiment of the present invention will be described with reference to FIGS.

(Embodiment 1) FIG. 1 is an enlarged sectional view of a main part of a transfer sheet 10 according to Embodiment 1 of the present invention, and a conceptual diagram showing an example of a method of manufacturing the same.

As shown in FIG. 1, the sheet base material 2 is fed out from the feed roller 20 around which the sheet base material is wound, and the powder particles of the functional member 1 are adhered.
Is wound by the take-up roller 21. A release material storage tank 23 storing the release material 3 is disposed between the delivery roller 20 and the take-up roller 21 and the tank 2.
3, a release material application roller 24 for applying the release material 3 supplied from the bottom of the sheet material 2 onto the sheet substrate 2, a hopper 25 for storing the functional members 1 and spraying the sheet onto the sheet substrate 2;
5 and a pair of pressure rollers 26 that sandwich the sheet substrate 2 and the functional member 1 with a predetermined pressing force are disposed in a post-process.

In this embodiment, first, 16 μm
The sheet base material 2 made of PET having a thickness of about 40 μm is fed from the feed roller 20 and moves toward the take-up roller 21. On the way, the release material 3 supplied from the release material storage tank 23,
4 is applied to one surface of the sheet substrate 2. The coating thickness of the release material 3 is 1 μm to 5 μm.

Thereafter, the hopper 25 is placed on the three layers of the release material.
The functional member 1, for example, a powder particle (particle outer diameter 1 μm to 10 μm) of a photocatalyst composed of titanium dioxide or a mixture of titanium dioxide and activated carbon, and a luminous storage member (Nagoya special chemistry / N night light) are individually or the same. It is supplied at a timing, and as shown in an enlarged manner in a circle in FIG. 1, the functional member 1 is placed on the three layers of the release material. Thereafter, by being pressed in a predetermined manner by the pressure roller 26,
As shown in the enlarged view in the circle, at least a part of the functional member 1 (the lower half of the powder particles in the embodiment of FIG. 1) is embedded in the release material 3.

In this way, the three layers of the release material in which the functional member 1 is embedded are solidified, and the functional member 1 is fixed on the sheet base 2, and the transfer sheet 10 is manufactured. Thereafter, the transfer sheet 10 is taken up by a take-up roller 21. In the above embodiment, the interrelation between the outer dimensions of the functional member 1, the coating thickness of the three layers of the release material, and the depth of embedding is arbitrarily determined according to the type and purpose of the constituent members. Needless to say, Further, the amount of the functional member to be sprayed on the release material is arbitrary, but it goes without saying that the functional member may be uniformly coated on the surface of the sheet substrate. Further, the functional member 1 may be any one of a photocatalyst, an antibacterial member, or a light storage member, or a combination thereof. Although only one hopper is shown in FIG. 1, three hoppers may be provided for each functional member as needed. Of course, two functional members may be mixed and filled in one hopper. Further, when the functional member such as the light storage member is in a liquid state, the supply thereof may be performed by means such as an application roller, gravure printing, or screen printing.

When transferring the functional member of the transfer sheet to the surface of the object, first, the side on which the functional member is provided is overlapped with the object. Next, the functional member may be embedded or transferred on the surface of the object by pressing while heating from the sheet substrate side. Even if the surface of the functional member is covered with the release material by the transfer, the antibacterial member is effective. That is, in the case of an antibacterial member, bacteria that have entered the mold release material are killed and propagation is prevented. Of course, the photocatalyst also functions. This is because the release material covering the functional member is decomposed by irradiating near ultraviolet rays of 300 nm to 400 nm to expose the functional member. After the light storage member is turned off, it emits light for a certain period of time to illuminate the surroundings.

(Embodiment 2) FIG. 2 is a sectional view showing a main part of a transfer sheet according to Embodiment 2 of the present invention. In this case, the transfer sheet is characterized in that a release material layer and an adhesive layer are sequentially applied on the sheet base material surface, and an antimicrobial member or a photocatalyst is embedded in the uppermost adhesive layer. is there.

The procedure for forming the transfer sheet 100 is as follows. First, three layers of release material are formed on one surface of the sheet substrate 2 in the same manner as in FIG. Next, four layers of an adhesive (carrier) containing about several W% to 30 W% of the phosphorescent member are provided so as to overlap the three layers of the release material. Next, the functional member 1 is applied or sprayed, and is pressed in a predetermined manner to bury at least a part of the functional member 1 (in FIG. 2, the lower half of the functional member 1) in four layers of the adhesive (carrier). The configuration is as follows.

In the second embodiment, the type, plate thickness, coating thickness, and the like of the members constituting the functional member 1, the sheet base 2, and the release material 3 are the same as those in the first embodiment. Good. Examples of the adhesive (carrier) 4 include starch, poval, acrylic resin, polyvinyl-based resin, polyamide-based resin, rubber-based resin, polyester-based resin, polyurethane-based resin, and vinyl chloride-based resin containing about 10 W% of a phosphorescent member such as N-night. One or a combination of arbitrary members such as a vinyl acetate copolymer is applied or printed to a thickness of 1 μm to 5 μm. In this way, when the adhesive (carrier) 4 in which the powder particles of the functional member 1 are embedded is solidified, the functional member 1 is fixed on the sheet base 2 via the release material layer.

When transferring the functional member of the transfer sheet to the surface of the object, first, the side on which the functional member is provided is overlapped with the object. Next, the functional member may be embedded or transferred on the surface of the object by pressing while heating from the sheet substrate side. In this case, the functional member is transferred together with the adhesive (carrier). However, as described above, in the case of an antibacterial member, bacteria that have entered the adhesive are killed and propagation is prevented. In the case of a photocatalyst, the adhesive (carrier) made of an organic substance is decomposed by the photocatalyst that has received near-ultraviolet light, and the functional member is exposed. Note that a configuration may be adopted in which a light storage member or an antibacterial member is included in the adhesive in advance, and a photocatalyst is mounted on the adhesive.

(Embodiment 3) FIG. 3 is a sectional view showing a main part of a transfer sheet according to Embodiment 3 of the present invention. In this case, a release material is applied to the surface of the sheet base material, and further, a mixture of an antibacterial member, a photocatalyst, or a phosphorescent member, which is a combination of two functional members, and an adhesive is applied. And has an effect of easily transferring an adhesive containing two functional members to an arbitrary object.

In the third embodiment, the types of the members constituting the functional member 1, the sheet base 2, and the release material 3, the plate thickness, the coating thickness, and the like are the same as those in the first embodiment. Good. As the adhesive (carrier) 50 containing (mixing) the powder particles or the ink of the functional member 1, any member such as starch, poval, and acrylic resin may be used. The amount of the powder particles of the functional member, for example, the antibacterial member to be contained in the adhesive (carrier) 50 is mixed at a ratio of about 0.5% to about 10% by weight with respect to the adhesive. Also, in the case of powder particles of the photocatalyst, they are mixed at a weight ratio of about 0.5% to about 20%. Also, in the case of the light storage member, it is mixed at a ratio of about 0.5% to about 20% by weight. The coating or printing thickness of the adhesive 50 including the functional member is 1 μm to 3 μm.
It was set to 0 μm. When the adhesive (carrier) 4 including the functional member 1 is solidified in this manner, the functional member 1 is fixed on the sheet base 2 via the release material layer.

When transferring the functional member of the transfer sheet to the surface of the object, first, the side on which the functional member is provided is overlapped with the object. Next, the functional member may be transferred onto the surface of the object by pressing while heating from the sheet substrate side. In this case, the functional member is transferred together with the adhesive (carrier). However, as described above, in the case of an antibacterial member, bacteria that have entered the adhesive are killed and propagation is prevented. In the case of a photocatalyst, the adhesive (carrier) made of an organic substance is decomposed by the photocatalyst that has received near-ultraviolet light, and the functional member is exposed.

The adhesive layer including the functional member is not limited to a single layer but may have a multilayer structure. For example, a release material is applied or printed on a sheet base material to a thickness of 1 μm to 5 μm and printed, and then an adhesive layer containing either a photocatalyst or an antibacterial member is applied to a thickness of 1 μm to 5 μm. It may be configured to apply or print to the thickness dimension, and further apply or print the adhesive layer including the phosphorescent member to a thickness dimension of 1 μm to 5 μm.

Next, a molded article having a functional member on its surface and a molding method according to a fourth embodiment of the present invention will be described with reference to FIGS.

(Embodiment 4) FIG. 4 shows a flowchart of a method for manufacturing a molded article having a functional member on the surface. FIG. 5 is a sectional view of a main part showing the concept of the injection molding simultaneous transfer device. FIG. 6 is a perspective view of a molded product having a functional member on the surface, and FIG. 7 is a cross-sectional view of FIG. 6 taken along a cutting line AA.

The molded product having a functional member on the surface thereof and the molding method according to the fourth embodiment are described in the first to third embodiments.
The transfer sheet described above is used. In the following description, the transfer sheet 100 shown in FIG. 2 is described as a representative. As shown in the manufacturing flowchart of FIG. 4, the transfer sheet is placed in a mold for injection molding. Next, the mold is closed, and any one of a softened and flowable resin member, ceramic member, or rubber member is injected and molded. In this molding step, the functional member (one of a photocatalyst, an antibacterial member, or a phosphorescent member, or a combination thereof) disposed on the surface of the transfer sheet is transferred and fixed to the surface of the molded product. Thereafter, the sheet material is peeled off from the molded article to complete the molded article.

In FIG. 5, a female mold 11 having a vent hole is provided.
Between the transfer mold 10 and the male mold 12 having an injection hole.
0 is continuously supplied from a supply roll 31 via a feed roll 32, and the formed transfer sheet 100 is taken up by a take-up roll 33. The transfer sheet 100 is provided with a sensor mark for positioning (line segment, straight line, cross, etc. (not shown)), and the sensor mark is detected by a positioning sensor 34 such as a photoelectric tube, so that the transfer sheet 100 is It is arranged at a desired position with respect to the mold 11. Although not shown, the transfer sheet is aligned not only in the direction parallel to the feed direction but also in the direction perpendicular to the feed direction, if necessary, by the sensor mark and the positioning sensor. When the transfer sheet and the female mold do not need to be aligned, the positioning sensor and the sensor mark are not required.

The female mold 11 is usually called a female mold because it has a concave cavity surface. The male mold 12 is called a male mold because it has a convex cavity surface. However, it is not necessary that the female mold 11 has a cavity surface in which the female mold 11 is concave and the male mold 12 is convex, and the reverse may be possible. In short, it is only necessary that the female mold 11 has at least an air hole for forming a transfer sheet and the male mold 12 has at least an injection hole for introducing molten resin or the like into the mold.

Hot platen 3 loaded in simultaneous injection molding transfer device
Reference numeral 6 (heating device) has a configuration in which a heating adjusting material is partially disposed between the hot platen surface and the transfer sheet. Hot plate 3
In order to heat the transfer sheet 100 using the transfer sheet 6, the transfer sheet 100 is fixed to the female mold 11 with the clamp 35, and the hot platen is arranged at a position where the heating surface of the hotplate faces the transfer sheet and is in non-contact. By doing so, the transfer sheet is heated and softened as desired. In order to arrange the hot platen so that the heating surface thereof is not in contact with the transfer sheet, if the movable support 42 supporting the hot plate has sufficient rigidity in consideration of the weight of the hot platen, the movable support By simply placing the hot platen at a position facing the transfer sheet at a predetermined distance, the transfer sheet and the hot platen can be placed at a position separated by a predetermined distance.

Thereafter, the female mold 1 is connected to the female mold 11 through a vent hole 13 connected to a vacuum source (not shown).
The transfer sheet 100 is formed by degassing the cavity space 1 and bringing the transfer sheet 100 into close contact with the cavity surface of the female mold 11 by air pressure. At this time, if necessary, the transfer sheet may be formed into the female mold 11 also by using compressed air blowing from the hot platen side.

After disposing the transfer sheet, the mold is closed and the molten resin is injected into the mold. When the mold is closed, the hot platen 36 is moved upward by a driving means such as an air cylinder or a hydraulic cylinder and retracted from between the dies. Thus, a molded article having the desired functional member on the surface can be obtained by using the injection molding simultaneous transfer device equipped with a hot platen. The hot platen 36 heats the transfer sheet 100 to, for example, a range of 60 to 180 degrees Celsius according to the uneven shape of the molded product. In Embodiment 4 of the present invention, heating is performed to about 70 degrees Celsius (° C.).

Next, the operation of simultaneous transfer of injection molding will be described. First, a positioning mark is read by a positioning sensor using a transfer device for the transfer sheet 100, and the transfer sheet on the roll is fed from the feed roll 32 between the male and female dies at a predetermined pitch and stopped at a desired position. The transfer sheet 100 is arranged such that a surface provided with a functional member (a photocatalyst, an antibacterial member, or a light storage member, or a combination thereof) faces the male mold 12 having the injection hole 14. Next, the heating plate 36 heated to a predetermined temperature is pressed against the female mold 11, the transfer sheet 100 is sandwiched between the female mold 11 and the heating plate 36, and the transfer sheet 100 is heated for 10 seconds without contact. The transfer sheet 100 is about 70 degrees Celsius. Next, the transfer sheet 100 is vacuum-sucked by the female mold 11. After that, the hot platen 36 is retracted from between the molds, the molds are closed,
Subsequently, any one of the softened (melted) resin member, ceramic member, or rubber member is injected to perform molding. Further, the sheet base material 2 of the transfer sheet is peeled from the obtained molded article, and a molded article having the functional member transferred to the surface is obtained. FIG. 6 is a perspective view of a molded product having a functional member on the surface according to the above configuration. FIG. 7 is a cross-sectional view of FIG. 6 taken along a cutting line AA.

In the first to fourth embodiments, as described above, any antibacterial member in the form of a liquid or a powder may be used as the antibacterial member. For example, the outer dimensions of the antibacterial member are 0.1 μm to 100 μm, and antibacterial zeolite harmless to the human body, or chitosan, or mugwort, hinoki, hiba, isothiocyanate, metronidazole, zirconium phosphate and silver oxide It is preferable to use any one of a mixture, diphenyl ether type, silicon quaternary ammonium salt and the like.

Further, as the resin member to be injected, PS,
Any resin member such as ABS, PP, PC, acrylic resin, vinyl chloride, polyamide resin, styrene resin, and epoxy resin may be used. Of course, it may be biodegradable plastic. For example, a denatured protein member such as gluten, a member obtained by kneading denatured protein member with paper or cellulose constituting paper, an agar member, a member obtained by kneading potato starch with water, a natural polymer Novamont (trade name: Materby / Nihon Gosei Co., Ltd.) Kagaku Kogyo), Microbial Polyester ICI
(Trade name: Biopol / ICI Japan), chemically synthesized aliphatic polyester (trade name: Bionole / Showa Kobunshi), and the like may be used arbitrarily.

The ceramic member to be injection-molded may be any member such as alumina (Al 2 O 3), silicon nitride (Si 3 N 4), steatite, forsterite, zirconia, ferrite, beryllia, and magnesia.
The rubber member may be any rubber member such as silicon rubber, butyl rubber, fluorine rubber, and natural rubber.

Further, the symmetrical object to be transferred is also a case of a remote controller, a portable telephone, a portable information terminal device, etc., various key tops, switch buttons, sheet switches, input device sheets,
It may be an arbitrary member such as an evacuation guidance device, a night sign, a decoration, and the like.

[0074]

As described above, the transfer sheet of the present invention easily transfers a functional member (one of a photocatalyst, an antibacterial member, or a phosphorescent member, or a combination thereof) to the surface of an object having an arbitrary shape. Can be set up. Further, the functional member can be arranged on the surface of the molded product by being placed in a mold and simultaneously transferring by injection molding. Further, the usage amount of the functional member can be reduced. In addition, molded products equipped with functional members on the surface prevent the growth of bacteria and oxidize and decompose odors and pollutants such as organic substances and nitrogen oxides attached to the atmosphere or on the surface, and use special equipment and devices. It can be removed without using humans. As a result, a healthy and comfortable life is enabled. Also,
Nosocomial infections can also be reduced. Further, the light storage member emits light by itself until the power is turned off to illuminate the surroundings.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of a transfer sheet according to a first embodiment of the present invention and a conceptual diagram illustrating an example of a method of manufacturing the transfer sheet.

FIG. 2 is a sectional view of a main part of a transfer sheet according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a transfer sheet according to a third embodiment of the present invention.

FIG. 4 is a flowchart of a method for manufacturing a molded product according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part showing a concept of a simultaneous injection molding transfer device according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view of a molded article having a functional member on the surface.

FIG. 7 is a cross-sectional view of FIG. 6 taken along a cutting line AA.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Functional member (one of a photocatalyst, antibacterial member, or luminous member or a combination thereof) 2 Sheet base material 3 Release material 4, 50 Adhesive (carrier) 10, 100, 200 Transfer sheet 11 Female mold 12 Male mold 13 Vent hole 14 Injection hole 20 Send-out roller 21 Take-up roller 23 Tank 24 Application roller 25 Hopper 26 Pressure roller 31 Supply roll 32 Feed roll 33 Take-up roll 34 Positioning sensor 35 Clamp 36 Hot plate

Claims (18)

[Claims] 1. A transfer sheet comprising a base material surface and two functional members of a photocatalyst and a light storage member via a release material. 2. A transfer sheet, wherein a photocatalyst and a luminous member are embedded in a release material disposed on the surface of a base material. 3. A transfer sheet wherein a release material is provided on the surface of a sheet base material, and a photocatalyst and a light storage member are further provided on top of each other. 4. A transfer sheet wherein a release material is provided on the surface of a sheet base material, and a mixture of a photocatalyst, a phosphorescent member, and an adhesive material is further overlaid. 5. A transfer sheet wherein a release material layer and an adhesive layer are sequentially stacked on a surface of a sheet substrate, and a photocatalyst and a light storage member are embedded in the adhesive layer. 6. A transfer sheet comprising two functional members, a light storage member and a photocatalyst, on a base surface material via a release material, is placed in a mold, and a resin member is injection-molded to form a surface of a molded product. Wherein the photocatalyst and the phosphorescent member are transferred to the resin molded article. 7. A transfer sheet comprising a light-storing member provided on a surface of a base material via a release material, is placed in a mold, and a ceramic member is injection-molded to transfer the light-storing member to the surface of a molded product. Characteristic ceramic molded product. 8. A transfer sheet having a photocatalyst and a light storage member provided on a surface of a base material via a release material is disposed in a mold, and a ceramic member is injection-molded to form a photocatalyst and a light storage member on the surface of a molded product. A ceramic molded product characterized by transferring the following. 9. A transfer sheet comprising a photocatalyst and a light storage member is placed in a mold on a release material applied to a sheet substrate, and one of a resin member, a ceramic member, and a rubber member is provided. Wherein the photocatalyst and the phosphorescent member are transferred onto the surface of the molded article simultaneously with the molding. 10. A transfer sheet comprising a base material surface provided with an antibacterial member and a phosphorescent member via a release material. 11. A transfer sheet characterized in that an antimicrobial member and a phosphorescent member are embedded in a release material disposed on the surface of a base material. 12. A transfer sheet wherein a release material is provided on the surface of a base material, and an antibacterial member and a luminous member are further provided on top of each other. 13. A transfer sheet wherein a release material is provided on the surface of a base material, and a mixture of an antibacterial member, a phosphorescent member, and an adhesive is further superposed. 14. A transfer sheet wherein a release material layer and an adhesive layer are sequentially stacked on a surface of a sheet substrate, and an antimicrobial member and a light storage member are embedded in the adhesive layer. 15. A transfer sheet comprising an antibacterial member and a phosphorescent member on a surface of a base material via a release material, disposed in a mold,
A resin molded product obtained by injection molding a resin member and transferring the antibacterial member and the phosphorescent member to the surface of the molded product. 16. A transfer sheet comprising an antimicrobial member and a light storage member on a surface of a base material via a release material is disposed in a mold, and a ceramic member is injection molded to form a transfer sheet on the surface of a molded product. A ceramic molded product obtained by transferring a phosphorescent member. 17. A transfer sheet comprising an antibacterial member and a light storage member on a surface of a base material via a release material, is disposed in a mold, and any one of a resin member, a ceramic member, and a rubber member is used. An injection molding method, wherein the antibacterial member and the phosphorescent member are transferred onto the surface of a molded article simultaneously with injection and molding. 18. A transfer sheet comprising an antimicrobial member, a photocatalyst, or a phosphorescent member, or a combination thereof, is disposed in a mold on a base material surface with a release material therebetween.
A rubber molded product obtained by injection-molding a rubber member and transferring any one of the antibacterial member, the photocatalyst, and the phosphorescent member, or a combination thereof to a surface of the molded product.