WO2000002970A1 - Adhesifs, procede de collage et produit a rigidite elevee muni d'une couche d'adhesif - Google Patents

Adhesifs, procede de collage et produit a rigidite elevee muni d'une couche d'adhesif Download PDF

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Publication number
WO2000002970A1
WO2000002970A1 PCT/JP1999/003743 JP9903743W WO0002970A1 WO 2000002970 A1 WO2000002970 A1 WO 2000002970A1 JP 9903743 W JP9903743 W JP 9903743W WO 0002970 A1 WO0002970 A1 WO 0002970A1
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WO
WIPO (PCT)
Prior art keywords
resin
layer
transfer
adhesive
film
Prior art date
Application number
PCT/JP1999/003743
Other languages
English (en)
Japanese (ja)
Inventor
Akiyoshi Tanimoto
Original Assignee
Hyogo Trading Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyogo Trading Co., Ltd. filed Critical Hyogo Trading Co., Ltd.
Priority to AU46509/99A priority Critical patent/AU4650999A/en
Publication of WO2000002970A1 publication Critical patent/WO2000002970A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1729—Hot stamping techniques
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00

Definitions

  • Adhesive, bonding method, and high-hardness product having the adhesive layer are Adhesive, bonding method, and high-hardness product having the adhesive layer
  • the present invention relates to a transfer coating material that can be used for, for example, building interior materials, exterior materials, and furniture materials, and an adhesive material and a bonding method capable of manufacturing a transfer mirror surface coating material at a high speed. It is characterized by using a new adhesive that mixes monomers and oligomers of radically polymerized resins with low viscosity to lower the viscosity, and furthermore uses a photopolymerizing agent mixed into the resin so that UV curing does not proceed 100%.
  • the present invention relates to an adhesive and a bonding method capable of providing a mirror surface coating material by high-speed bonding, and a high-hardness product having the adhesive layer.
  • a veneer that makes use of beautiful wood grain such as natural wood, a sliced veneer, a thorn veneer, and a half-round veneer, is used to attach this veneer to the surface of plywood.
  • a board overlay plywood There is a board overlay plywood.
  • a resin overlay plywood in which a synthetic resin film, impregnated paper, and a resin laminate are pressed against the surface of the plywood
  • a resin film overlay plywood which is covered with a resin film on which a pattern or the like is printed as necessary, and a plastic laminate.
  • resin sheet overlay plywood using colored or patterned paper there is a resin plate overlay plywood in which a resin plate prepared by previously impregnating resin into paper or cloth, such as a lamin resin decorative plate, is attached to the plywood.
  • the base material for overlaying the above-mentioned synthetic resin films, impregnated paper, resin laminates, etc. is not limited to the above-mentioned plywood, but also paper boards, fiber boards, vegetable boards, wood chips, etc.
  • Various materials such as cement boards, rubber materials, inorganic materials, metals, and laminates thereof have been adopted.
  • the conventional thermal transfer film has a pattern adhesion color layer provided on a base film via a release layer, and further has an adhesive layer laminated thereon.
  • the adhesive layer of the thermal transfer film is brought into contact with the surface of the transfer partner material and heated. It has the function of fixing the pattern-attached color layer to the surface of the material to be transferred by applying pressure through the adhesive layer.
  • the above-mentioned release layer, pattern-attached color layer, and adhesive layer can be easily printed on the substrate film by various printing methods, especially gravure printing. Therefore, PET and PVC films, which are thin films, have excellent heat resistance and thermal conductivity, and are flexible enough to conform to the shape of the adherend, have been used.
  • inorganic plates such as cement boards, lightweight concrete, and ceramics have come to be used for exterior wall materials today.
  • the surface design ability utilizing the properties of the material was used, but the design property was gradually gaining importance as in the above-mentioned resin overlay plywood.
  • inorganic plates have come to be used as the base material for today's building interior materials, and the design properties required as essential functions can be realized by the various overlay methods described above. At the same time, many functions have been required to be added to physical properties because they are not natural materials.
  • PVC films are inexpensive and have good design, but have poor heat resistance and have the problem of generating dioxins, especially when burned.
  • low-pressure melamine has excellent scratch resistance, but cannot be mirror-finished and has poor design properties.
  • High-pressure melamine is excellent in various physical properties such as design properties, scratch resistance, chemical resistance, etc., but is expensive because it requires labor for production.
  • Dup film is excellent in various physical properties such as scratch resistance and chemical resistance, but cannot be mirror-finished and has poor design properties.
  • typical urethane coatings have the advantages of being easy to handle, inexpensive, and have low capital investment. Their design is poor, and the aforementioned physical properties are inferior.
  • UV coating can be expected to have higher physical properties than urethane, has the advantage of high productivity and low capital investment, but is difficult to apply to applications that require high hardness because the required film thickness cannot be obtained.
  • Inorganic coatings and fluorine coatings have the potential to produce the required high-performance products, but have the problem of poor mass productivity and the inability to provide interior materials at low cost.
  • the transfer includes paper pasting and resin film pasting.
  • a stamp film 5 having a three-layer structure of an ink pattern printing layer 3 and an adhesive layer 4 by providing a release treatment layer 2a on a PET film 2 that is usually used frequently is shown in FIG. 1B.
  • the substrate 1 is pressed against the surface of the substrate 1 with a heated press roll.
  • an ink pattern printing layer 3 is formed on the surface of the substrate 1 via the adhesive layer 4. Since this transfer is performed only with heat and pressure energy, it is difficult to perform high-speed transfer of 10 to 15 m or more per minute.
  • the use of an adhesive made it impossible to increase the speed to 30m or more.
  • an adhesive made of an electron beam curing resin using electron beam curing ( ⁇ ⁇ ⁇ curing) has recently been developed.
  • the process is as follows.
  • a glue 7 is applied to the surface of the substrate 1 with a roll coater 6 and, as shown in Fig. 2 (1), a stamp film 8 is provided with an ink pattern printing layer on a release-treated PET film.
  • the laminator or hot stamper press roll 9 is applied to the 7 layers of ⁇ ⁇ ⁇ glue, and then irradiated with an electron beam as shown in Fig. 2C to cure ⁇ . To complete the bonding, and then peel off the PET film.
  • the transfer method using E-B glue uses electron beam curing of the adhesive, the processing speed can be increased.
  • the viscosity of the ⁇ ⁇ ⁇ glue is increased to improve the adhesiveness, it is difficult to apply it uniformly and accurately to the surface of the substrate, and the surface after transfer such as transfer or paper pasting, film pasting, etc. Poor quality and problems. Disclosure of the invention
  • An object of the present invention is to provide a transfer coating material or a transfer mirror surface coating material that can be used for building interior materials, exterior materials, furniture materials, and the like that are mass-produced using the transfer method.
  • the present invention is excellent in all of the design properties, stain resistance, chemical resistance, heat resistance, flame resistance, abrasion resistance, and specularity required for building interior materials, and all properties are satisfied. It aims to provide a transfer coating material or a transfer mirror surface coating material to be added.
  • the present invention provides a transfer coating material or a transfer mirror coating material which satisfies all the characteristics of design, stain resistance, chemical resistance, heat resistance, flame resistance, abrasion resistance, and mirror finish.
  • the purpose is to provide a transfer coating or transfer mirror coating method that can be mass-produced by high-speed transfer.
  • Another object of the present invention is to provide an adhesive material and an adhesive method capable of performing high-speed bonding, such as high-speed transfer and film bonding, with a high degree of adhesion.
  • the inventor of the present invention is to uniformly and accurately apply an adhesive to a substrate surface in a transfer method using a ⁇ ⁇ ⁇ ⁇ ⁇ glue, and to improve surface properties after transfer, such as transfer or paper pasting or film pasting.
  • Various studies were carried out for the purpose.
  • low-viscosity monomers and oligomers of radically polymerized resins are mixed into the glue to lower the viscosity, and a new photopolymerizing agent is mixed into the resin to prevent UV curing from proceeding 100%.
  • an adhesive EB / UV glue
  • the inventor has conducted intensive studies on the E and B / UV glues.
  • semi-curing by UV irradiation was performed to cure a layer having a certain thickness or more from the surface, and at the same time, added to reduce the viscosity. It was found that it is possible to restore the original tackiness by curing the resin. That is, the adhesiveness can be improved by UV semi-curing after the application of the adhesive, and the workability is improved, as well as the smoothness during the previous application. More specifically, by applying a stamp film by a hot stamping machine after semi-curing by UV irradiation, the smoothness after transfer or pasting on paper and after film pasting is improved. It was found that transfer and bonding speeds up to a maximum of 80 m / min were theoretically possible, since the transfer and bonding speeds were similar to the curing speeds.
  • the inventor studied the resin layer provided on the base material surface by bonding a stamp film using the E'B / UV glue, performing a semi-curing and a semi-curing on the UV, and performing a UV curing.
  • the use of UV glue has a significant effect on improving the peel strength, heat resistance, and flame resistance of stamp films and papers, and finally, from the top coat on the surface to the UV-cured parts, all at once
  • the polymer resin is chemically integrated between the layers by ⁇ ⁇ ⁇ irradiation, and has extremely high peeling strength.
  • the new adhesive, EB / UV glue, according to the present invention is capable of applying a low viscosity once and applying it uniformly and at high speed with smoothness. After hardening, the original viscosity is restored to increase the adhesive strength, and the flatness and homogeneity of the tip make it possible to greatly improve the bonding workability, and it is possible to completely solidify by subsequent EB irradiation.
  • the present inventors have found that it is possible to increase the bonding speed of transfer and pasting to the curing speed, and completed the present invention.
  • FIGS. 1A, 1B, and 1C are explanatory views of a substrate and a stamp film showing steps of a transfer (hot stamp) method.
  • FIGS. 2A, 2B, and 2C are explanatory views of a substrate and a stamp film showing the steps of a transfer method using E-B.
  • 3A, 3B, 3C, and 3D are explanatory views of a substrate and a stamp film showing the steps of a transfer method using an E.B / UV glue according to the present invention.
  • FIG. 4A is an explanatory view of a substrate showing an E'B / UV glue coating process according to the present invention.
  • FIGS. 4B, 4C, 4D, and 4E are diagrams of a transfer method using EB / UV dull according to the present invention.
  • FIG. 3 is an explanatory cross-sectional view showing a stacked state.
  • an EB glue as an adhesive, a monomer or oligomer of a low-viscosity radically polymerized resin, and a light such that UV curing does not proceed 100%.
  • FIG. 3A when the above E'B / UV glue 10 is applied to the surface of the base material 1 with a roll coater 6, the application is easy due to the low viscosity, and the smoothness is easily achieved by using a reverse roll. A plane is obtained.
  • a stamp film 11 having a release pattern of a PET film provided with an ink pattern printing layer on an uncured layer 10b on the upper layer of the EB / UV glue 10 was pressed by a laminator hot stamping machine. Laminate with roll 9, then peel off PET film.
  • the EB / UV glue 10 is cured by irradiating an electron beam to complete the bonding, and the separately applied surface from the top coat to the UV cured part is collectively processed. A series of steps are completed by completely integrating polymerization by irradiation.
  • the EB / UV glue 10 is transferred to the surface of the base material 1 by a mouth coater 6 using a transfer layer and paper. An amount corresponding to the thickness of the adhesive is applied, and then semi-cured by UV irradiation to form a cured layer 10a and an uncured layer 10b.
  • Pattern to be laminated and peeled off PET film 13 The uncured layer is impregnated into the attachment layer 12 or the paper application layer to form the impregnated pattern attachment layer 12.
  • a clear layer 14 made of a curable resin as a top coat is applied on the impregnated patterning layer 12, and then the UV light is applied to the clear layer 14 by UV irradiation.
  • the whole of the hardened layer up to the hardened layer 10a is completely integrated and polymerized by ⁇ ⁇ ⁇ .
  • each layer becomes a polymerized resin that is chemically integrated, and due to the radical polymerization by ⁇ ⁇ ⁇ , the bonding force between the molecules becomes extremely strong, and the shrinkage due to heat becomes strong. Flame resistance is improved because there is no mixing of oxygen, which is a factor.
  • the coating is from the clear layer 14 composed of the curable resin on the surface to the cured layer 10a of the EB / UV glue at the lowermost layer.
  • Different powers such as ⁇ ⁇ ⁇ and ⁇ , UV Both resins are integrated by the same resin such as monomer and oligomer of radical polymerized resin such as acrylic resin and unsaturated polyester resin, and distortion occurs between each layer Since the adhesion does not decrease and the adhesion does not decrease, it can withstand the stress given by heat or the like under similar conditions.
  • the top ⁇ ⁇ ⁇ resin clear coating film is an acrylic resin that is polymerized by the highest energy content of a monomer of an extremely high-performance resin called an acrylic resin and a basic molecule called an oligomer. Due to the formation of the film, it becomes a very strong coating film.
  • the conventional urethane coating film is a polymer and has gaps between molecules.
  • the UV coating film has weak bonding between molecules, so all contaminants easily penetrate, and destruction by external energy can occur. Easy to get up.
  • the acryl / EB / UV glue coating film according to the present invention has a low molecular weight, a small intermolecular gap, a strong intermolecular bond, makes it difficult for contaminants to penetrate, and is not easily damaged by external energy. Unlikely to happen.
  • a similar example is diamond. Diamond is basically a bond of carbon and, as is well known in elemental terms, a very weak force. In this generation, it is produced at very high temperatures and pressures, far exceeding normal energy levels. I have. This has very high physical properties. Similarly, acrylic monomers and oligomers are also polymerized by electron beam energy, which is not usually considered, so that a naturally formed coating film is less likely to be destroyed by normal state energy. .
  • the impregnated patterning layer 12 uses a material that is very easy to permeate the resin molecules.When a clear resin is applied, acrylic monomers and oligomers can easily pass through. And are united.
  • the cured layer 10a of EB / UV glue strengthens the bonding strength of the base material by infiltrating low-molecular NCO, low-molecular acrylic monomers and oligomers, and changes the temperature and moisture of the base for many years. The movement of the material can be prevented. In other words, one of the important points in mirror-painting is to suppress the occurrence of distortion in the mirror-finished plane due to changes in the situation over time.
  • Inorganic materials such as gaical plates, have a small organic content required for binding inorganic particles to secure the physical properties required for the certification of noncombustible materials.
  • the present invention as a method of improving the adhesion strength of the inorganic material having a low specific gravity, about 10% of an isocyanate is blended with a permeable low-viscosity UV sealer to cure the inside of the inorganic material.
  • the method can be adopted. Therefore, on the production line
  • UV curing does not hinder polishing, etc., and can be used to stop alkali in the carousel by reacting with the OH group of the isocyanate, and the effect of strengthening the bonding of inorganic particles by the OH group reaction of the isocyanate can be expected. .
  • the heat-resistant coating film (top coat), the coloring and patterning layer, and the sealer layer are formed into one acrylic resin layer, that is, an inorganic pigment is used for the transfer layer used for the patterning layer.
  • the resin must have a molecular weight greater than the molecular weight of the topcoat, so that the heat-resistant topcoat paint can easily infiltrate, and the resin has a high polymerization density so that it does not contain oxygen necessary for combustion. Make the coatings flexible to withstand high temperatures (around 14CTC). As a result, heat resistance of about 450 ° C is obtained.
  • the transfer coating according to the present invention has extremely high weather resistance because the heat-resistant coating film (top coat), the coloring or patterning layer, and the sealer layer can be formed into one acrylic resin layer.
  • the following method is desirable in order to enhance the design of the coloring and patterning layer.
  • the transfer resin layer is laminated on a sheet or roll-shaped base film for thermal transfer, and the transfer resin layer is transferred and adhered to the transfer substrate while applying heat to the transfer resin layer by pressing or rolling.
  • the transfer resin layer provided on the base film via a release layer is preheated by using 23 g / m2 to 50 g / m2 paper or aluminum foil or a composite paper of paper and aluminum foil for the base film. And then heat transfer onto the substrate.
  • the transfer method described above or the conventional transfer method in which at least one resin layer is transferred onto a transfer-receiving substrate by coloring and / or patterning, the transfer method is applied to the transferred resin layer. Apply low molecular weight paint or resin with a smaller molecular diameter than the pigment, paint, resin, etc., on the transfer resin layer.
  • the substrate to be transferred is an inorganic plate, and the substrate to be transferred is subjected to an alkali neutralization treatment or a pretreatment for providing a surface solidification resin layer.
  • the total thickness of the paper and composite substrate film cover will be reduced to fine irregularities during the hot-press roll transfer. Make it thick enough not to break.
  • a method is adopted in which a concave portion larger than a fine concave portion on the surface, such as a scratch on the substrate to be transferred or a groove generated in manufacturing the substrate, is used.
  • the yield point for pulling the paper is low, there is a problem that the substrate film always breaks at the concave portion and remains on the transfer surface without releasing when releasing.
  • the paper may be made thicker.
  • the heat conductivity of the paper is so low that the conventional method of heating from the base film side does not provide sufficient heat to the transfer layer for adhesion.
  • the transfer layer is mainly formed by providing a release layer on both sides of a paper (23 g / m 2 to 50 g / m 2 ) which is not too thick and a colored pattern adhesive layer and a transfer layer. This is pre-heated from the layer side to about 50 ° C, and the substrate to be transferred is also pre-heated to about 50 ° C, and then the transfer film and the substrate are combined and transferred by a hot-press roller.
  • a paper having a predetermined rigidity is used, the stretch is small at the time of roll winding, etc., and it is easily adapted to fine irregularities on the substrate to be transferred, and extra heat is applied to the release layer at the time of heating. Since it is not applied too much, release from the base film is better than before, and it has the effect of improving the bonding reliability of thermal bonding.
  • the activation of the transfer layer can be promoted by the preheating, and the transfer and bonding efficiency have been improved, so that it is not necessary to apply unnecessary tension to the paper, and it is possible to prevent the paper from being broken at the above-mentioned concave portion. You.
  • the composite substrate film made of paper and resin according to the present invention has the following advantages over the conventional substrate films made of PET film and PVC film.
  • the composite base film made of paper and resin can be a composite base film of aluminum foil and resin film, or a composite base film of aluminum foil and paper and resin film.
  • aluminum foil for the composite substrate film, there is an advantage that heating from the substrate film side can be performed with high thermal efficiency.
  • the aluminum foil various known thicknesses can be used, but a laminate of a polyethylene sheet or a polypropylene sheet is preferable to improve the releasability of the transfer layer.
  • the paper 23g / m2 ⁇ 50g / m 2 of Ru with a sheet or roll of thermal transfer base one Sufuirumu, such as kraft paper are available, 30 g / m 2 or more preferably paper.
  • Sufuirumu such as kraft paper
  • polyethylene, polypropylene and the like can be used, and a laminate of these sheets is preferable.
  • a PVC film has been used as a base film.
  • the reason for this is that PVC film can be relatively easily stretched in response to an increase in heat, and is well suited for transferring to a three-dimensional shape.
  • the temperature control had to be controlled and maintained in an extremely narrow range of 170 ° C to 175 ° C in order to conform to the three-dimensional shape.
  • the present invention is characterized in that a biaxially stretched foamed PP film is used as a sheet-shaped base film for thermal transfer, and the biaxially stretched foamed PP film has a good heat resistance and a film at the time of pressing.
  • Good elongation and contains a large number of air layers so it has excellent follow-up ability to elongation force, and exceeds the softening point of resin from one direction Even if heat is applied, the air layer functions as a buffer for heat conduction, so the rigidity of the entire base film is secured, and the resin layer can be reliably transferred onto the uneven surface of the plate material with good adhesion Has an effect.
  • the elongation ⁇ ⁇ ⁇ ⁇ is larger than the L 2 of the PP film. It has the property of being better than a solid PP film and more easily adapting to a three-dimensional shape. Also, in order to adapt to the three-dimensional shape,
  • the transfer resin layer may have any one of known one to many layers.
  • an inorganic plate is used as the substrate to be transferred, it is subjected to an alkali neutralization treatment or a pretreatment for providing a surface-solidification resin layer, followed by a colored undercoat, and then a transfer and lamination of a transparent resin layer on which a color pattern is printed.
  • an alkali neutralization treatment or a pretreatment for providing a surface-solidification resin layer followed by a colored undercoat, and then a transfer and lamination of a transparent resin layer on which a color pattern is printed.
  • a transparent resin layer on which a color pattern is printed.
  • Various design patterns can be applied.
  • a small number of patterns can be obtained while making use of the design pattern of the uneven surface of the base material.
  • Many resin patterns can be produced with good reproducibility by combining these resin films.
  • a two-layer film in which a colored undercoating transparent resin layer and a transparent resin layer with a colored pattern are a transfer film and are preliminarily laminated, or each of the transparent resin layers is a transfer film in which the transfer film is laminated in advance 3 By using a layer film, mass productivity is improved.
  • the target substrate is not only a natural wood board but also a veneer overlay plywood in which a veneer such as a sliced veneer, a son veneer, a half round veneer, a rotary veneer, etc. is adhered to the surface of the plywood.
  • a veneer such as a sliced veneer, a son veneer, a half round veneer, a rotary veneer, etc.
  • plywood not only plywood but also veneer, paper board, fiber board made of resin made of plant fiber and wood chips, and particles
  • Various materials such as boards, MDF, wood cement boards, rubber materials, inorganic materials such as various ceramics, metals, and laminates thereof can be used.
  • a transparent resin material such as a transparent film, a transparent adhesive, a colored transparent paint can be appropriately selected for the resin layer to be laminated, and an acrylic resin film, a vinyl chloride resin film, polypropylene Resin coatings made of acrylic polymer, vinyl polymer, cell mouth derivative, epoxy resin, etc. on base resin film and release-treated base film.
  • Transparent films suitable for lamination are acrylic Or a transparent film of vinyl chloride is desirable.
  • the transparent adhesive examples include a solvent-type polyurethane adhesive, a moisture-curable polyurethane adhesive, an acrylic adhesive, and a vinyl acetate adhesive.
  • Colored transparent coatings include polyurethane coatings, UV-curable epoxy coatings, polyester coatings, acrylic coatings, and aminoalkyd coatings.
  • a film-forming resin that can be dissolved in a coating solvent a resin film having a thickness of about 2 to 3 ⁇ formed of an acrylic polymer, a vinyl polymer, a polyethylene wax, an epoxy resin, a cellulose derivative, or the like is preferable.
  • the adhesive side of the transparent resin film to be colored undercoat is arbitrarily determined as to whether an adhesive is to be applied to the film or to the substrate in advance.
  • the basic configuration is the same except for the order of lamination.
  • the applied colored undercoat or overcoated transparent resin film include a vinyl chloride resin and an acrylic resin film
  • the colored undercoat include a vinyl acetate film.
  • the three-layer laminate structure is basically performed by the same lamination method as the two-layer structure.
  • a low-molecular-weight paint or resin such as a pigment, a paint, and a resin used for the transferred resin layer, is applied on the transfer resin layer so that the coloring and patterning resin layer is applied to the base material.
  • the patterning is further strengthened. Specific examples of this include a colored undercoating transparent resin layer, a colored patterning transparent resin layer, and a colored topcoating transparent resin layer.
  • the transparent resin layer uses a paint such as urethane paint, UV-curable polyester, UV-curable epoxy, or UV-curable acrylic, and the transparent resin layer with a colored pattern is laminated with a thermal transfer sheet made of the above acryl polymer etc. This can firmly fix the color tone and pattern on the base material.
  • the method according to the present invention provides a transfer coating material or a transfer mirror coating material which satisfies all the properties of design, stain resistance, chemical resistance, heat resistance, flame resistance, abrasion resistance and specularity. It can be manufactured easily and with high productivity by mass production.
  • a surface sanding process is performed to ensure the smoothness of the surface of the sheet (grinding ⁇ polishing).
  • NCO is sufficiently penetrated into the substrate of the car board to strengthen the adhesion between the base particles, while the NCO reacts with the OH groups in the car board to neutralize the alkali, Apply NCO + 10% white base process.
  • UV white glue is used to ensure that the transfer film of the next process can be applied at high speed and easily, and that the acrylic monomer and oligomer, the main resin of Glue, infiltrate into the transfer film. I do.
  • Glue is applied to the base material surface so that the transfer film of the next process can be applied at high speed and easily, and a white coat is applied to the base material surface so that the transfer film of the next process can be applied at high speed and easily. This is because tackiness is imparted, the applied glue uniformly impregnates the transfer film, and the main resin of the glue is reliably mixed into the transfer film.
  • the adhesive be applied uniformly and easily, that the applied adhesive surface have sufficient tackiness, and that a certain amount of resin be impregnated into the transfer film. Is done.
  • Process 3 Backside UV-curable sealer, urethane coating for the purpose of preventing warping and improving water resistance
  • Process 4 Drying, UV drying, hot air drying
  • UV-curable polyester paint UV-curable acrylic paint, and in some cases, ordinary thermosetting polyester paint, urethane paint, etc.
  • the material can be any of printing paper, transfer, and resin film.
  • mirror transfer coating was applied to the required surface of the car board.
  • Process 3 Backside UV curable sealer, urethane coating for anti-slipping and water resistance improvement Process 4 Drying, UV drying, hot air drying Step 5 Make a paint containing isocyanate in a UV curable film, infiltrate the paint into the base material with the pressing force of reverse roll coater, and form a coating film on the surface
  • Step 12 Improve smoothness by curing type top coat force
  • mirror transfer coating was applied to the required surface of the car board.
  • Process 3 Backside UV curable sealer, urethane coating for the purpose of warping and improving water resistance Process 4 Drying, UV drying, hot air drying
  • Step 5 Create a paint containing isocyanate in a UV-curable filler, infiltrate the paint into the substrate by the pressing force of the reverse roll coater, and form a coating film on the surface
  • Step 12 Improve smoothness by using a hardening type top coat force.
  • Step 13 Complete irradiation and curing.
  • mirror transfer coating was applied to the required surface of the car board.
  • Step 13 is a post-transfer and lamination step.
  • the top coat can be cured after evaporation of the thinner.
  • Example 1 a wood-based material (MDF, P.B, etc.), here a particle pod (P.B), was subjected to mirror-surface transfer coating in the same process in place of the car board.
  • MDF wood-based material
  • P.B particle pod
  • Example 1 A comparative test was conducted on the chemical resistance performance of the mirror-transferred coating obtained by Example 1 to Example 3 and the conventional high-pressure melamine material.
  • Table 1 shows the test results. In the table, ⁇ indicates little change, ⁇ indicates slight coloring and stains, indicates color and stains, X indicates severely colored and stains remain.
  • the test method is based on JIS A5703. Approximately 0.2 ml of the reagent is dropped on the surface, covered with a watch glass, left at room temperature for 24 hours, and cleaned with a dry cloth to observe the surface condition.
  • Example 7 the particle board was subjected to mirror-transfer coating according to the specifications of Sample 1) and Sample 2) according to the process of Example 1.
  • the conventional melamine coating was applied according to the specifications of sample 3) and sample 4).
  • the sample specifications are as follows.
  • Table 2 shows the test results for Escherichia coli and Table 3 shows the test results for Staphylococcus aureus.
  • the heat resistance was evaluated based on no deformation or breakage after holding at 140 ° C for 4 hours.
  • Flame resistance was evaluated by the change in surface after the flame was applied for 30 seconds with an alcohol lamp.
  • Example 4 In the heat resistance test, deformation was observed in the case of Example 4 where no paint was applied, but there was no deformation or peeling in the other cases.
  • the surface In the flame resistance test, in Example 4, the surface was blackened and carbonized when the flame was applied with an alcohol lamp for 10 seconds, but the others did not ignite, there was no burn mark, and there was no peeling or deformation.
  • the transfer mirror coating method which is an example of the bonding method according to the present invention, uses a low-viscosity radical polymerization resin monomer or oligomer in the glue adhesive to reduce the viscosity, and further promotes 100% UV curing of the resin. It is characterized by using a new adhesive mixed with a small amount of photopolymerizing agent. In other words, after applying the EB / UV glue, semi-curing by UV irradiation is performed, and a layer with a certain thickness or more is cured from the surface, and at the same time, the resin added for lowering the viscosity is also cured. It can be returned, and the adhesive used in the transfer method can be uniformly and accurately applied to the substrate surface.
  • the adhesiveness can be improved and the workability is improved, if the stamp film is adhered by a hot stamping machine after semi-curing by UV irradiation, the smoothness after transfer or paper pasting and film pasting will be improved. ⁇ Irradiation and curing. Adhesion can be completed. The transfer and reattachment speed is the same as the curing speed. Therefore, high-speed transfer and adhesion of 30m / min or more are possible.
  • the transfer mirror surface coating method according to the present invention has an advantage that the use of UV glue has a great effect of improving the peel strength, heat resistance, and flame resistance of a stamp film, paper sticking, or the like. Finally, it is possible to polymerize completely from the top coat on the surface to the UV-cured part by irradiation at the same time. This results in a polymer resin in which the respective layers are integrated in a dagger-like manner, resulting in an extremely high peeling strength. Further, due to radical polymerization by ⁇ ⁇ ⁇ , the bonding force between molecules becomes extremely strong. (4) It has a strong advantage in improving flame resistance because it is resistant to heat-induced shrinkage and does not contain oxygen that causes combustion in the cured resin.
  • the transfer mirror surface coating method according to the present invention can form a resin layer that satisfies all of the properties of design, stain resistance, chemical resistance, heat resistance, flame resistance, scratch resistance, and mirror surface. According to the present invention, it is possible to provide, at a low cost, a high-quality transfer mirror surface coating material that can be used not only for architectural interior materials satisfying the above characteristics but also for furniture materials having excellent design properties and mirror finish. Since a thick film can be transferred and coated on metal, an exterior material having extremely high weather resistance, heat resistance, and flame resistance can be provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un adhésif utilisé par procédé de transfert dans des matériaux de construction à usage interne fabriqués en masse, des matériaux de construction à usage externe, des matériaux pour meubles et similaires. L'adhésif comprend une colle durcissable par les rayons E•B, un monomère ou un oligomère radicalaire polymérisable à faible viscosité qui donne une résine et est incorporé pour réduire la viscosité et un agent de photopolymérisation présent dans des quantités qui ne permettent pas le durcissement complet du monomère ou de l'oligomère aux rayons U.V. Une fois que l'adhésif est durci à moitié par les rayons U.V., on effectue le collage d'un film marqué au moyen d'un dispositif de marquage à chaud, ce qui permet d'augmenter la douceur du produit après transfert ou stratification au plastic ou au papier. En répétant l'irradiation par rayons E•B on mène à terme le durcissement et le collage. La vitesse de transfert et de stratification dépend de la vitesse de durcissement aux rayons E•B. De cette manière, on peut effectuer le transfert et le collage à une vitesse qui atteint 30 m/min, voire plus. On peut ainsi obtenir un matériau recouvert par transfert ou un matériau recouvert par transfert à surface miroir qui possède une excellente présentation et résiste bien aux taches, aux produits chimiques, à la chaleur, au feu, à la dégradation et possède des propriétés miroir, toutes ces qualités étant exigées d'un matériau qui est, p.ex., utilisé à l'intérieur d'un bâtiment.
PCT/JP1999/003743 1998-07-13 1999-07-12 Adhesifs, procede de collage et produit a rigidite elevee muni d'une couche d'adhesif WO2000002970A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46509/99A AU4650999A (en) 1998-07-13 1999-07-12 Adhesive, method of bonding, and high-hardness product having layer of the adhesive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP1998/003142 WO2000002739A1 (fr) 1998-07-13 1998-07-13 Materiau de revetement par transfert et procede de revetement par transfert d'une surface de miroir
JPPCT/JP98/03142 1998-07-13

Publications (1)

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WO2000002970A1 true WO2000002970A1 (fr) 2000-01-20

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PCT/JP1998/003142 WO2000002739A1 (fr) 1998-07-13 1998-07-13 Materiau de revetement par transfert et procede de revetement par transfert d'une surface de miroir
PCT/JP1999/003743 WO2000002970A1 (fr) 1998-07-13 1999-07-12 Adhesifs, procede de collage et produit a rigidite elevee muni d'une couche d'adhesif

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CN109263388A (zh) * 2018-09-21 2019-01-25 中广核达胜加速器技术有限公司 一种包装材料表面转印加工方法
CN112621971A (zh) * 2020-07-04 2021-04-09 成都柯乐家居用品有限公司 一种复合多层门板加工工艺

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CN1304506C (zh) * 2004-11-22 2007-03-14 中国化工建设总公司常州涂料化工研究院 用于转移涂装的紫外光固化涂料
US8455638B2 (en) * 2007-09-06 2013-06-04 Merck Sharp & Dohme Corp. Soluble guanylate cyclase activators
DE102017104658B4 (de) * 2017-03-06 2022-06-23 Leonhard Kurz Stiftung & Co. Kg Verfahren zur Herstellung eines Decals und ein Decal sowie ein Verfahren zum Dekorieren von Oberflächen von Gegenständen
CN109536120A (zh) * 2018-11-30 2019-03-29 中广核达胜加速器技术有限公司 Eb固化专用封装胶、制备方法及封装薄膜电容器的方法

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JPS6320381A (ja) * 1986-07-15 1988-01-28 Toyo Ink Mfg Co Ltd 粘着シ−ト
JPH01174519A (ja) * 1987-12-28 1989-07-11 Yokohama Rubber Co Ltd:The 電子線および紫外線で硬化可能な樹脂
JPH03109472A (ja) * 1989-08-25 1991-05-09 Mitsui Mining & Smelting Co Ltd 銅箔用接着剤
JPH0538797A (ja) * 1991-07-15 1993-02-19 Sekisui Chem Co Ltd 被覆物の製造方法及び被覆用シート
JPH06145305A (ja) * 1992-11-09 1994-05-24 Nippon Kayaku Co Ltd 光重合性樹脂組成物及びその硬化物

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109263388A (zh) * 2018-09-21 2019-01-25 中广核达胜加速器技术有限公司 一种包装材料表面转印加工方法
CN112621971A (zh) * 2020-07-04 2021-04-09 成都柯乐家居用品有限公司 一种复合多层门板加工工艺

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WO2000002739A1 (fr) 2000-01-20
AU4650999A (en) 2000-02-01

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