JP3871759B2 - Method for producing cosmetic material using transfer sheet - Google Patents

Description

【００６２】
【発明の効果】
以上の説明から理解されるように、本発明に係る転写シートを用いた化粧材の製造方法は、転写層を形成する剥離層、装飾層等の層に有機溶剤不溶性微粒子を添加含有させるとともに、転写層上に有機溶剤を含む透明又は着色透明塗料を塗布するようにしたので、転写層のバインダー内に微小な貫通細孔が多数生ぜしめられ、そのため、導管溝等の木質被転写体の凹部内に残留している空気は、前記貫通細孔を通じて外部に抜け、また、多少バンダーが溶けても、不溶性微粒子によるバインダーの流動抑制作用により、装飾層を流れ崩すこともない。
【００６３】
そのため、本発明の転写シートを用いた化粧材の製造方法によって得られる化粧材は、導管溝等の被転写体の凹部内の空気が排除されてそこには残留しなくなるとともに、転写層及び塗膜が前記導管溝等の凹部内面に沿うように密着するので、絵柄が崩れることなく突板等が持つ導管溝等の凹部形状が出現し、リアル感が増す。
【００６４】
従って、本発明方法によれば、生産性の低下や接着不良等を招くことなく、また、絵崩れや柄抜けしたように見える部分を生じさせることなく、高品質で意匠性の優れた化粧材を得ることができる。
【図面の簡単な説明】
【図１】本発明の転写シートの一実施形態を概略的に示す部分断面図。
【図２】本発明の転写シートの他の実施形態を概略的に示す部分断面図。
【図３】本発明に係る化粧材の製造方法を実施するための化粧材製造装置の一実施形態を概略的に示す図。
【図４】本発明に係る転写シート及び化粧材の製造方法の作用効果の説明に供される転写層の一部を示す概略部分断面図。
【図５】本発明に係る転写シートを用いた化粧材の製造方法により得られた化粧材の一例を概略的に示す部分断面図。
【図６】従来の転写シートの一例を概略的に示す部分断面図。
【図７】突板を示す部分拡大斜視図。
【図８】従来の突板化粧材の製造方法(1) の説明に供される図。
【図９】従来の突板化粧材の製造方法(2) 、(3) 、(4) の説明に供される図。
【図１０】従来の突板化粧材の製造方法(2) 、(5) の説明に供される図。
【図１１】従来の突板化粧材の製造方法(5) の説明に供される図。
【図１２】従来の突板化粧材の製造方法(5) の説明に供される図。
【符号の説明】
１ 転写シート
２ 支持体シート
３ 剥離層
４ 装飾層
５ 接着剤層
６ 転写層
１０ 突板
１２ 導管溝
１６ 有機溶剤不溶性微粒子
１９ 塗料[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer sheet in which a transfer layer having a peeling layer and a decorative layer such as a wood grain pattern or a pattern is detachably laminated on a support sheet, and the transfer sheet is a belt-like or sheet-like veneer. The present invention relates to a production method for obtaining a decorative material in which only a support sheet is peeled off after being adhered and laminated on a woody transfer material, and a transfer layer is transferred to the surface.
[0002]
[Prior art]
The transfer sheet 1 used in manufacturing this type of decorative material is usually provided with a transfer layer 6 on a thermoplastic resin support sheet 2 as shown in FIG. It is laminated so as to be peelable. As shown in the figure, as the transfer layer 6, there are many layers in which a release layer 3, a decorative layer 4 such as a wood grain pattern, and an adhesive layer 5 are sequentially laminated from the support sheet 2 side by gravure printing or the like.
[0003]
A typical example of the wood substrate to be transferred as a base material part of the decorative material is a veneer plate 10 as shown in FIG. 7 with a part thereof exaggerated or simplified. , Which can be wound up in a roll shape, or a sheet-like sheet shape, and a large number of conduit grooves 12, 12,... Are formed on the surface thereof.
[0004]
In order to obtain such a veneer decorative material in which the transfer sheet 1 is adhered and laminated to the veneer 10 and the transfer layer 6 is transferred to the surface thereof, the methods as described in the following (1) to (5) are conventionally employed. It has been.
[0005]
That is, (1) As shown in FIG. 8 (A), a filling agent 14 or an adhesive is filled to fill the conduit grooves 12, 12,... 12,... And the surface of the projecting plate 10 are smoothed so that the transfer sheet 1 is adhered and laminated on the projecting plate 10 as shown in FIG. Of the constituent members of the sheet 1, only the support sheet 2 is peeled from the transfer layer 6.
[0006]
(2) As shown in FIG. 9 (A) and FIG. 10, the transfer sheet 1 is laminated on the projecting plate 10 while the conduit grooves 12, 12,... Thereafter, only the support sheet 2 among the constituent members of the transfer sheet 1 is peeled from the transfer layer 6.
[0007]
(3) Similar to the above (2), the conduit grooves 12, 12,... Only the support sheet 2 of the constituent members is peeled from the transfer layer 6, and then, as shown in FIG. 9B, the conduit grooves 12, 12 floating from the protruding plate 10 of the transfer layer 6. ,... (Not bonded) is dissolved with an organic solvent 18 so that the transfer layer 6 extends along the inner peripheral surface of the conduit grooves 12, 12,.
[0008]
(4) In the same manner as (3) above, the transfer sheet 1 is adhered and laminated on the protruding plate 10, and only the support sheet 2 is peeled off from the transfer layer 6, and then lifted from the protruding plate 10 in the transfer layer 6. The portions of the conduit grooves 12, 12,... Are swollen with the organic solvent 18 so that the transfer layer 6 extends along the inner peripheral surface of the conduit grooves 12, 12,.
[0009]
(5) As shown in FIG. 10, the transfer sheet 1 is adhered and laminated on the projecting plate 10 in the same manner as in (2) above, and only the support sheet 2 is peeled off from the transfer layer 6, and then FIG. As shown in A), a transparent or colored transparent paint is applied on the transfer layer 6 to form a coating film 19.
[0010]
[Problems to be solved by the invention]
However, as described in (1) above, in the case where the conduit grooves 12, 12,... Of the protruding plate 10 are filled with the sealing agent 14 or the adhesive agent, etc. As a result, the design is reduced. (2) The process and time for drying the sealant 14 or the adhesive filled in the conduit grooves 12, 12,... There is a problem.
[0011]
Further, as described in (2) above, in the case where the transfer sheet 1 is bonded and laminated to the protruding plate 10 with the conduit grooves 12, 12,... Empty, the transfer is performed on the conduit grooves 12, 12,. The layer 6 has a bridge shape (bridge shape) as shown in FIG. 9A and FIG. 10, and the transfer layer 6 is not adhered to the conduit grooves 12, 12,... (2) Since the air is contained in the conduit grooves 12, 12,..., The conduit grooves 12, 12,. is there. In this case, the shining conduit grooves 12, 12,... Are not so conspicuous in the light color type, but are conspicuous as if the pattern is missing in the dark color type, and the quality is greatly reduced.
[0012]
In the case where the conduit grooves 12, 12,... Of the transfer layer 6 are dissolved by the organic solvent 18 as in the above (3), when the transfer layer 6 is a thin film, the pattern flows due to dissolution. There appears to be a problem that it appears to have disappeared, the appearance is poor, and the design properties are lowered, and the conduit grooves 12, 12,... Of the transfer layer 6 are swollen with an organic solvent as in (4). In this case, depending on the conditions such as the film thickness of the transfer layer 6, the blending ratio of the solvent and the coating addition amount, the drying mode, and the atmosphere (humidity and temperature), the air in the conduit grooves 12, 12,. If air remains in the conduit grooves 12, 12,..., The conduit grooves 12, 12,. There is a problem of variation.
[0013]
Even when the coating layer 19 is formed by applying a paint on the transfer layer 6 as in the above (5), the transfer layer 6 has a bridge-like shape in the conduit grooves 12, 12,. Since the air is contained in the conduit grooves 12, 12,..., And (1) if the paint solvent dries quickly during painting, the paint (coating film 19) is dried and solidified. The air (bubbles K) in the conduit grooves 12, 12,... Moves to the coating film 19 side through the transfer layer 6 as shown in FIG. Therefore, after all, the bubbles K do not escape to the outside and remain under the coating film 19. Therefore, in this case, the same problem as in (2) occurs. On the other hand, (2) if the solvent of the paint solvent is too strong, the air in the conduit grooves 12, 12,... Escapes to the coating film 19 side through the transfer layer 6 as shown in FIG. At the same time, the transfer layer 6 dissolves, so that the decorative layer 4 (pattern) flows and collapses, resulting in poor appearance and poor design. Thus, when applying a paint on the transfer layer 6, good quality cosmetics cannot be obtained unless the drying conditions and solvent blending conditions are strictly controlled, and the season (temperature, humidity), Since delicate conditions such as conditions and transfer conditions must be taken into account, production management is difficult.
[0014]
In addition, although the above demonstrated taking the case where a veneer was used for the part used as the base material of a decorative material (to-be-transferred body), it is not restricted to a veneer, A conduit groove | channel on the surface with a wooden base material, a raising of an annual ring, a fiber A similar problem occurs when a transfer sheet is transferred to an article having fine irregularities such as hairline irregularities by a bundle to obtain a decorative material.
[0015]
  The present invention has been made to solve the above-mentioned problems, and the object of the present invention is a part that does not cause a drop in productivity, poor adhesion, etc., and looks like a picture collapse or a pattern missing. Transfer sheet that can provide a high-quality and excellent decorative material without causingUsedIt is in providing the manufacturing method of a cosmetic material.
[0016]
[Means for Solving the Problems]
  In order to achieve the above-mentioned object, according to the present inventionManufacturing method of cosmetic materialOn the support sheetContains resin binderA transfer layer having a release layer and a decoration layer is laminated, and the release layerAnd beforeIn both layers of the decorative layer,A transfer sheet in which 5 to 50% by weight of organic solvent insoluble fine particles having an average particle size of 0.1 to 10 μm are added or a transfer layer having a release layer, a decoration layer and an adhesive layer is laminated on a support sheet. To the release layer, decorative layer and adhesive layerOrganic solvent-insoluble fine particles having an average particle size of 0.1 to 10 μm are contained in an amount of 5 to 50% by weight.After the transfer sheet is adhered and laminated to a woody transfer body having an uneven surface such as a veneer so that the transfer layer and the transfer body are in contact, the support sheet of the transfer sheet constituting members is transferred to the transfer sheet. A transparent or colored transparent paint containing an organic solvent that swells or dissolves the binder of the transfer layer is applied to the transfer layer, and then the organic solvent is evaporated and dried.
[0019]
  In the method for producing a decorative material of the present invention using the transfer sheet as described above, the transfer layer is formed.PeelingIncluding delaminationMuduOrganic solvent-insoluble fine particles are added and contained in several layers, and this transfer sheet is adhered and laminated to a wooden transfer object such as a veneer, and the support sheet is peeled off from the transfer layer, and then an organic layer is formed on the transfer layer. Since a transparent or colored transparent paint containing a solvent is applied, at the time of painting, the binder (resin) of the transfer layer is incompletely dissolved or swollen with the solvent of the paint.
[0020]
In this case, as shown in a simplified manner in FIG. 5, at least one layer including the release layer among the transfer layers (one layer or all of the release layer 3, the decorative layer 4, and the adhesive layer 5)). Since organic solvent-insoluble fine particles are present in, a large number of fine through-pores (micro voids, labyrinth-like through-holes) J are generated in the binder of the transfer layer. Therefore, the air remaining in the concave portion of the wooden transfer object such as a conduit groove escapes to the outside through the through-hole J.
[0021]
Moreover, even if the bander melts somewhat, the decorative layer does not flow down due to the binder flow-inhibiting action of the insoluble fine particles.
More specifically, in the presence of the organic solvent-insoluble fine particles, when the binder is a solvent only, and (1) only swelling, through pores J including fine voids, labyrinth-shaped through holes, etc. are generated around the fine particles, From this, air remaining in the conduit groove etc. escapes to the outside, and the transfer layer is deformed following the recess, and (2) when dissolved to some extent, the flow of the binder is suppressed by the viscous resistance of the fine particles. The
[0022]
Therefore, the decorative material obtained by the manufacturing method of the decorative material using the transfer sheet of the present invention eliminates air remaining in the concave portion of the transferred material such as a conduit groove and does not remain there, and transfers the transfer layer and coating. Since the film is in close contact with the inner surface of the concave portion such as the conduit groove, the surface shape including the concave shape such as the conduit groove of the protruding plate or the like appears without breaking the pattern, and the realism is increased. Therefore, according to the method of the present invention, a high quality and excellent design material without causing a decrease in productivity, poor adhesion, etc., and without causing a part that looks like a picture collapse or a pattern missing. Can be obtained.
[0023]
The transfer sheet used in the method for producing a decorative material of the present invention transfers a transfer layer composed of a decorative layer or the like laminated on a support sheet having a peelability to a wooden transfer object such as a veneer. A release layer may be provided on the sheet as necessary. The transfer layer generally includes a release layer, a decoration layer, an adhesive layer, and the like, but layers other than the release layer and the decoration layer are not necessarily required, and are provided as necessary.
[0024]
As the support sheet, a thermoplastic resin having a thickness of 9 to 200 μm, preferably 16 to 100 μm is used. In this case, if the thickness is excessively thin (smaller than 9 μm), the strength is insufficient, and if it is excessively thick (larger than 200 μm), the cost is high, and in the normal roll transfer system, heat conduction is low. Since it becomes worse, the transfer speed has to be slowed, and the productivity is lowered.
[0025]
Specific materials for the support sheet include linear polyesters such as polyethylene terephthalate and polybutylene terephthalate, linear polyamides such as nylon 6 and nylon 66, polyolefins such as polyethylene, polypropylene and olefin-based thermoplastic elastomers, and polyvinyl chloride. For example, a flexible thermoplastic resin film or a laminate thereof is preferable. As the polyethylene terephthalate, it is preferable to use molding PET (biaxially stretched PET) having a small stretch ratio. In particular, in consideration of cost, printability, and moldability, it is preferable to use a sheet of polyolefin resin or polyvinyl chloride resin.
[0026]
The release layer provided on the support sheet as necessary uses melamine resin, silicone resin, amino alkyd resin, urethane resin, urea resin, epoxy resin, or the like. The thickness is preferably about 0.01 to 5 μm. It is also possible to adjust the peel strength by adding an additive. In order to adjust the gloss of the surface after transfer, a known matting agent such as micro silica may be added to the release layer.
[0027]
Here, the release layer refers to a layer that remains on the support sheet side after transfer and facilitates peeling from the transfer layer. On the other hand, a release layer refers to a transfer target ( It refers to a layer that is transferred to the side of the projecting plate or the like and serves as a surface protective layer of the transfer layer. Peeling is performed between the release layer (support sheet) and the release layer.
[0028]
As the release layer provided in the transfer layer, it is preferable to use an acrylic resin, a urethane resin, a vinyl chloride-vinyl acetate copolymer, a butyral resin, a cellulose resin, or the like, or a mixture of two or more thereof. In this case, an acrylic resin is preferable in consideration of wear and transparency.
[0029]
It is preferable to add polyethylene wax, Teflon wax, carnauba wax, paraffin wax or the like as an additive in order to cause surface slippage to appear in the release layer after transfer. When used in exterior applications or in parts exposed to sunlight, light stabilizers such as benzotriazole, benzophenone, salicylic acid UV absorbers and hindered radical scavengers, phenolic antioxidants and heat It is preferable to add a stabilizer or the like.
[0030]
The release layer is laminated by a known method such as gravure printing, roll coating, screen printing, or offset printing.
The decorative layer is not limited to a pattern in which a pattern such as a wood grain pattern is partially or entirely formed, but may be a layer having a simple solid color, transparent, or colored opaque resin layer. One or two selected from acrylic resin, vinyl chloride-vinyl acetate copolymer, polyester resin, cellulosic resin, urethane resin, etc. as a binder consisting of an ink layer colored with pigments and dyes to form a pattern The above mixture is used. In addition, as a decorative layer, a metal vapor deposition, an antistatic agent layer, an infrared blocking layer, an ultraviolet absorbing layer, or the like may be provided as a functional layer, or a concavo-convex pattern obtained by embossing the release layer may be used. .
[0031]
The adhesive layer is a layer for transferring and transferring the transfer layer to a transfer target (projecting plate), and a heat-sensitive adhesive is preferably used here. In addition, when the transfer layer constituting layer other than the adhesive layer such as the decoration layer and the release layer has sufficient adhesiveness, the adhesive layer can be omitted.
[0032]
Thermosensitive adhesives include thermoplastic resins such as acrylic resins, vinyl chloride-vinyl acetate copolymers, polyester resins, styrene resins, chlorinated polypropylene resins, polyamide resins, and thermosetting resins such as urethane resins and epoxy resins. Etc. are particularly preferable, and one or more resins selected from these are laminated by a known method such as gravure printing, roll coating, screen printing, offset printing, or the like. The adhesive only needs to be applied to at least one of the transfer sheet side or the protruding plate side.
[0033]
On the other hand, the material to be transferred is not limited to a veneer plate, and any object having irregularities such as a conduit groove or a raised annual ring on the surface can be an object of the present invention, and tree species include oak, oak, lawan, teak , Merapies, cedars, camellias, pine, cherry blossoms.
[0034]
The projecting plate, which is one of the transferred materials, is a wood-based single plate having air permeability and desirably has a thickness of about 0.05 to 0.2 mm. The veneer plate can be efficiently produced if it has a belt-like shape (continuous sheet shape), but a sheet-like sheet can also be used. The back of the veneer (on the reverse transfer side) is a support that prevents cracking of the veneer and does not impair air permeability during the suction process, and is lined with Japanese paper, woven fabric, or non-woven fabric. May be. Moreover, a plywood and a gathering agent may be used for a veneer, and it may be used with flat form (sheet form), and may be used by a curved surface and a three-dimensional shape.
[0035]
The organic solvent insoluble fine particles added to and contained in at least one layer including the release layer of the transfer layer include alumina, silica, zinc oxide, tin oxide, cerium oxide, titanium oxide, or a silicon / titanium ratio of 2/1. Such inorganic oxide fine particles can be used. In addition, other inorganic substances such as barium sulfate and calcium carbonate, resins such as nylon, fluorine resin, cross-linked acrylic resin, and urethane resin may be used. The fine particles are preferably colorless and more preferably colorless and transparent so as not to affect the decorative appearance of the decorative layer.
[0036]
The organic solvent-insoluble fine particles may have an average particle size of 0.1 to 10 μm, more preferably 0.5 to 5 μm. In this case, if it is 0.5 μm or less, the air venting effect is reduced, that is, it becomes difficult to form void pores (micro gaps, labyrinth holes, etc.) for escaping air remaining in the conduit grooves, If it is 5 μm or more, transparency and printability are likely to deteriorate.
[0037]
Moreover, as a coating material apply | coated on a transfer layer, the transparent or colored transparent thing which contains an organic solvent and a binder (resin) and can see through a transfer layer is used. Furthermore, if necessary, colorants such as dyes and pigments, extender pigments, heat stabilizers, light stabilizers, ultraviolet absorbers, lubricants, and the like may be added. The application amount is usually about 1 to 100 μm.
[0038]
As the organic solvent contained in the coating material, an organic solvent that swells or incompletely dissolves the binder of the transfer layer but does not completely dissolve it is used. Whether the binder is swollen or completely dissolved depends on the combination of the binder, the organic solvent, and the organic solvent insoluble fine particles. For example, the binder is an acrylic resin such as poly (meth) methyl acrylate, poly (meth) ethyl acrylate, poly (meth) butyl acrylate, methyl methacrylate (butyl) butyl acrylate copolymer, etc. (Meth) acryl ”means acryl or methacryl], vinyl acetate resin, vinyl chloride vinyl acetate copolymer, or a mixture of these with fine particles of ethyl acetate, toluene, preferably These mixed systems are good. If necessary, isopropyl alcohol, methyl alcohol, ethyl alcohol, xylene, cyclohexanone, etc. may be further added to these. In addition, simple substances such as acetone and methyl ethyl ketone are not preferable for use in these binders because they have a high dissolving power and break the transfer layer, causing the layer to collapse. In the case of using these organic solvents having a high dissolving power, it is preferable to mix an organic solvent having a low dissolving power such as isopropyl alcohol, toluene, xylene or the like so as to reduce the dissolving power appropriately.
[0039]
Examples of the binder include a two-component cured urethane resin (consisting of a polyol and an isocyanate), an acrylic resin, an aminoalkyd resin, and a cellulose resin. About a coloring agent, what is necessary is just to add a petal, carbon black, phthalocyanine blue, isoindolinone, quinacridone, etc. in the range which does not lose transparency.
[0040]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 schematically shows a partial cross section of an embodiment of a transfer sheet according to the present invention. The illustrated transfer sheet 1 is formed by bonding and laminating a transfer layer 6 on a support sheet 2 made of thermoplastic resin. The transfer layer 6 is obtained by sequentially laminating a release layer 3, a decoration layer 4, and an adhesive layer 5 on the support sheet 2 by gravure printing or the like. Each of these transfer layers 6 is made of a solid resin binder at a temperature not higher than normal temperature (or use environment temperature, usually set to a maximum of about 80 ° C.). The decorative layer 4 has a wood grain pattern made of ink containing a solid binder at room temperature.
[0041]
Here, the release layer 3, the decoration layer 4, and the adhesive layer 5 constituting the transfer layer 6 each have 5 to 10 weights of spherical silica fine particles 16 that are organic solvent insoluble fine particles having an average particle size of 0.1 to 10 μm. % Addition.
[0042]
As described above, the transfer layer 6 of the transfer sheet 1 has the three layers of the release layer 3, the decoration layer 4, and the adhesive layer 5, and the organic solvent insoluble fine particles 16 are added to all three layers. In addition to the above, for example, as shown in FIG. 2 (A), the adhesive layer 5 is not provided, and the organic solvent-insoluble fine particles 16 are added and contained only in the release layer 3, or as shown in FIG. 2 (B). As described above, the organic solvent-insoluble fine particles 16 are added to the release layer 3 and the adhesive layer 5 except the decoration layer 4 among the three layers of the release layer 3, the decoration layer 4, and the adhesive layer 5 constituting the transfer layer 6. You may use what was made to do. Since the release layer 3 is a layer located on the outermost surface and formed over the entire surface, the effect of adding the organic solvent insoluble fine particles 16 is the greatest. Therefore, it is preferable to add the organic solvent insoluble fine particles 16 to at least the release layer 3.
[0043]
Further, the protruding plate 10 has a large number of conduit grooves 12, 12,... Formed on the surface thereof in the same manner as that shown in FIG. A nonwoven fabric (not shown) or the like may be lined on the back surface (reverse transfer side) of the protruding plate 10.
[0044]
For example, a decorative material manufacturing apparatus as schematically shown in FIG. 3 is used in the manufacturing method of the decorative material of the present embodiment using the transfer sheet 1 and the protruding plate 10 described above.
[0045]
The decorative material manufacturing apparatus A in the illustrated example basically adheres and laminates the transfer sheet 1 to the surface of the veneer 10 that is a continuous belt-like sheet, and then only the support sheet 2 of the transfer sheet 10 is attached. After peeling, a transparent or colored transparent paint 19 containing an organic solvent is applied onto the transfer layer 6.
[0046]
Here, the protruding plate 10 unwound from the state of the roll UR is conveyed substantially horizontally while being guided by the rollers 26, 23, 28, 29, 52, and finally, as shown in FIG. Then, it is wound up as a veneer decorative material 10 ″ in which the transfer layer 6 and the paint 19 are applied on the veneer 10 (roll CR).
[0047]
That is, the protruding plate 10 unwound from the state of the roll UR is first passed between a pair of upper and lower feed guide rollers 26, 26 arranged in the uppermost stream. The transfer sheet 1 unwound from the roll DR state is also passed between the feed guide rollers 26 and 26, and the transfer sheet 1 is placed between the feed guide rollers 26 and 26 on the surface of the protruding plate 10 with a transfer layer. In this state, the surface with the heater 21 constituting the adhesive laminating means is passed between the silicone rubber laminating roller 20 and the backup roller 23 and heated and pressed at the same time. The Thereby, the transfer sheet 1 is bonded and fixed to the surface of the protruding plate 10 (bonding and stacking step).
[0048]
Thus, the protruding plate 10 on which the transfer sheet 1 is bonded and laminated is sufficiently cooled, and the adhesive force between the protruding plate 10 and the transfer layer 6 becomes larger than the adhesive force between the transfer layer 6 and the support sheet 2. Subsequently, the support sheet 2 among the transfer sheet constituent members is peeled off from the transfer layer 6 and wound up by the peeling roller 28 and the support sheet winder (roll ER) constituting the peeling means ( Peeling step).
[0049]
Next, the projecting plate 10 from which the support sheet 2 has been peeled and only the transfer layer 6 remains in an adhesively laminated state is passed between the painting roller 50 and the backup roller 52, and an organic solvent is applied to the surface of the transfer layer 6. The transparent or colored transparent paint 19 is applied (painting process).
[0050]
Thus, the transparent or colored transparent paint 19 containing the organic solvent is applied onto the transfer layer 6 (the release layer 3, the decoration layer 4, and the adhesive layer 5) in which the organic solvent insoluble fine particles 16 are added and contained. As a result, at the time of painting, the binder (resin) of the transfer layer 6 is incompletely dissolved or swollen with the solvent of the paint.
[0051]
In this case, as schematically shown in FIG. 5, organic solvent-insoluble fine particles 16 are added and contained in the entire transfer layer 6 (peeling layer 3, decoration layer 4, adhesive layer 5). For this reason, a large number of minute through-holes (microscopic voids, labyrinth-shaped through-holes) J are generated in the binder of the transfer layer 6. Therefore, the air remaining in the recesses such as the conduit grooves 12, 12,...
[0052]
Moreover, even if the bander melts somewhat, the decorative layer does not flow down due to the binder flow-inhibiting action of the insoluble fine particles.
More specifically, in the case where the binder is made of a solvent due to the presence of the organic solvent-insoluble fine particles, and (1) it is only swollen, through-holes J are generated around the fine particles and remain in the conduit groove or the like from here. When air escapes to the outside and (2) dissolves to some extent, the flow of the binder is suppressed by the viscous resistance of the fine particles.
[0053]
Therefore, as shown in FIG. 4, the decorative material 10 ″ obtained by the manufacturing method of the present embodiment excludes air in the concave portions of the conduit grooves 12, 12,... Since the transfer layer 6 and the coating film 19 are in close contact with the inner surfaces of the recesses such as the conduit grooves 12, 12,..., The shape of the recesses such as the conduit grooves 12, 12,. Therefore, according to the method of the present invention, it is possible to achieve high quality without causing a decrease in productivity, poor adhesion, etc., and without causing a part that looks like a picture collapse or a pattern missing. A cosmetic material with excellent design can be obtained.
In order to confirm such an effect, a comparative experiment was performed under the following conditions using the apparatus of FIG.
[0054]
(1) Method of the present invention
(1) Transfer sheet 1... Consists of a support sheet 2 and a transfer layer 6 adhered and laminated thereon. The support sheet 2 is a biaxially stretched polyester film [made by Diafoil Co., Ltd.] having a thickness of 25 μm, and the transfer layer 6 is sequentially formed on the support sheet 2 with a release layer 3, a decoration layer 4, Gravure printing of three layers of adhesive layer 5 in sequence.
[0055]
(2) Release layer 3: Ink with a 1: 1 weight ratio mixture of acrylic resin and vinyl chloride / vinyl acetate copolymer resin (made by Showa Ink Industries Co., Ltd.) with an average particle size of 0.6 μm Spherical silica fine particles [manufactured by Admatechs Co., Ltd., SO-C2] added at a weight ratio of 10%. The thickness is about 1 μm when dried.
[0056]
(3) Decorative layer 4: Ink in which a 1: 1 weight ratio mixture of acrylic resin and vinyl chloride / vinyl acetate copolymer resin is used as a binder, and a brown pigment mainly containing a petal is added thereto. Co., Ltd. Showa Ink Industries Co., Ltd.] containing spherical silica fine particles [manufactured by Admatechs Co., Ltd., SO-C3] with an average particle size of 1.0 μm added at a weight ratio of 5%. Forming a woodgrain pattern.
[0057]
(4) Adhesive layer: Ink with a 1: 1 weight ratio mixture of acrylic resin and vinyl chloride vinyl acetate copolymer resin (made by Showa Ink Industries Co., Ltd.) with an average particle size of 1.7 μm Spherical silica fine particles [manufactured by Admatechs Co., Ltd., SO-C5] added at a weight ratio of 5%. The thickness is about 2 μm when dried.
[0058]
(5) Veneer plate 10: 2 g / m of urethane resin-based paint as a base layer (manufactured by Hamani Paint Co., Ltd.)²A white oak veneer with a surface coating of 200 μm thick (with many conduit grooves on the surface) and a vinylon nonwoven fabric on the back.
(6) Adhesion laminating step: The transfer sheet 1 is 2 kg / cm with a silicon rubber laminating roller 20 heated to a surface temperature of 140 ° C.²The pressure plate 10 is conveyed at a feed speed of 5 m / min while being pressed with a pressure of 5 m / min.
[0059]
(7) Peeling step: The support sheet 2 is peeled off from the transfer layer 6 immediately after the adhesion laminating step.
(8) Coating process (paint): Two-component curable urethane paints (manufactured by Hamani Paint Co., Ltd.) containing the following three types of solvents were separately applied onto the transfer layer 6. The coating amount (thickness) is about 50 μm when dried. The composition of the urethane resin consists of acrylic polyol and hexamethylene diisocyanate.
[0060]
Paint a: Paint thinner (ethyl acetate / toluene = 1: 1 weight ratio) dilution ratio 30%
Paint b: Paint thinner (ethyl acetate / toluene = 1: 1 weight ratio) dilution ratio 50%
Paint c: Paint thinner (methyl ethyl ketone / toluene = 4: 1 weight ratio) dilution ratio 50%
(2) Comparative example
Except that the organic solvent insoluble fine particles 16 are not added to any of the release layer 3, the decorative layer 4, and the adhesive layer 5 constituting the transfer layer 6, the same conditions as those in the above embodiment (paints a, b, c) Are separately applied onto the transfer layer 6).
(3) Results of comparative experiments
As shown in Table 1.
[0061]
[Table 1]

[0062]
【The invention's effect】
  As can be understood from the above description, the transfer sheet according to the present invention isTheThe manufacturing method of the decorative material used is the transfer layerFormRelease layer, Such as decoration layerIn addition to adding organic solvent-insoluble fine particles to the transfer layer and applying a transparent or colored transparent paint containing an organic solvent on the transfer layer, a large number of fine through-holes are formed in the binder of the transfer layer. In addition, the air remaining in the concave portion of the wooden transfer object such as a conduit groove escapes to the outside through the through pores, and even if the bander is slightly dissolved, the binder layer is prevented from flowing by the insoluble fine particles, so that the decorative layer Will not break down.
[0063]
Therefore, the decorative material obtained by the method for manufacturing a decorative material using the transfer sheet of the present invention excludes air in the recesses of the transferred material such as a conduit groove and does not remain in the transfer material and the coating layer. Since the film is in close contact with the inner surface of the concave portion such as the conduit groove, the shape of the concave portion such as the conduit groove of the protruding plate or the like appears without breaking the pattern, and the realism is increased.
[0064]
Therefore, according to the method of the present invention, a high quality and excellent design property without causing a drop in productivity, poor adhesion, etc., and without causing a part that looks like a picture collapse or a pattern missing. Can be obtained.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view schematically showing an embodiment of a transfer sheet of the present invention.
FIG. 2 is a partial sectional view schematically showing another embodiment of the transfer sheet of the present invention.
FIG. 3 is a diagram schematically showing an embodiment of a cosmetic material manufacturing apparatus for carrying out the cosmetic material manufacturing method according to the present invention.
FIG. 4 is a schematic partial cross-sectional view showing a part of a transfer layer used for explaining functions and effects of the transfer sheet and decorative material manufacturing method according to the present invention.
FIG. 5 is a partial cross-sectional view schematically showing an example of a decorative material obtained by the method for manufacturing a decorative material using the transfer sheet according to the present invention.
FIG. 6 is a partial sectional view schematically showing an example of a conventional transfer sheet.
FIG. 7 is a partially enlarged perspective view showing a protruding plate.
FIG. 8 is a diagram for explaining a conventional method (1) for manufacturing a veneer decorative material.
FIG. 9 is a diagram which is used for explaining the conventional method (2), (3) and (4) for manufacturing a veneer decorative material.
FIG. 10 is a diagram which is used for explaining the conventional method (2) and (5) for manufacturing a veneer decorative material.
FIG. 11 is a diagram which is used for explaining a conventional method (5) for producing a veneer decorative material.
FIG. 12 is a diagram which is used for explaining a conventional method (5) for producing a veneer decorative material.
[Explanation of symbols]
1 Transfer sheet
2 Support sheet
3 Release layer
4 decoration layers
5 Adhesive layer
6 Transfer layer
10 Veneer
12 conduit groove
16 Organic solvent insoluble fine particles
19 Paint

Claims (1)

A transfer layer having a release layer containing a resin binder and a decoration layer is laminated on a support sheet, and 5 to 50 organic solvent-insoluble fine particles having an average particle diameter of 0.1 to 10 μm are formed on both the release layer and the decoration layer. A transfer sheet that is added by weight%, or a transfer layer having a release layer, a decoration layer, and an adhesive layer is laminated on a support sheet, and the average particle size is 0 on the release layer, the decoration layer, and the adhesive layer. A transfer sheet containing 5 to 50% by weight of organic solvent-insoluble fine particles of 1 to 10 μm was added so that the transfer layer and the transfer target were in contact with a wooden transfer target having irregularities on the surface of a veneer or the like. After adhering and laminating, the support sheet of the transfer sheet constituting member is peeled off from the transfer layer, and then transparent or colored containing an organic solvent that swells or dissolves the binder of the transfer layer on the transfer layer A method for producing a cosmetic material, comprising applying a transparent paint and then evaporating and drying an organic solvent.

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