JP2009220318A - Decorative sheet, its manufacturing process and resin molding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel decorative sheet which is free from many problems associated with conventional photogravure printing methods, raw material colored film methods and dyeing methods and having glossiness, depth, coloring properties and/or metallic luster, with a high grade feeling, which cannot be attained by conventional techniques. <P>SOLUTION: The decorative sheet has a thermoplastic resin film of a thickness of ≥50 μm and a parallel ray transmittance of ≥90%, the first adhesive layer of a thickness of ≥10 μm made of an adhesive and blended with a coloring agent, a film layer for retention of metal, a metal layer, the second adhesive layer and a substrate sheet made of a thermoplastic resin, laminated in this order. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to resin products such as automobile interior and exterior, furniture, building materials, bags, home appliances, audio, personal computers, mobile phones, cameras, video cameras, signboards, displays, nameplates, frames, pachinko-pachislot and other amusement products. The present invention relates to a decorative sheet for adding a new texture to the surface, a method for producing the decorative sheet, and a resin molded product formed using the decorative sheet.

  When molding a resin molded product, insert a decorative sheet into the mold to give the surface of the molded product a metallic appearance, etc., or laminate the decorative sheet on the base resin sheet by extrusion lamination, then vacuum The method of molding by molding, etc. to give the surface of the molded product a metallic appearance etc. can be replaced with conventional metal materials without reducing the sense of quality, and at the same time, saves process, reduces costs, reduces weight, etc. In order to achieve this, various decorative sheet technologies have been proposed.

Among these, colored ones are known, for example, those obtained by the gravure printing method, the raw material colored film method, or the dyeing method described in Japanese Patent No. 3718696 (Patent Document 1), These have been highly evaluated for their novel color feeling, gloss, gloss, shine, etc., which cannot be obtained by direct treatment of metals such as dyeing alumite and electrolytic coloring.
However, these conventional manufacturing methods have the following problems.

<Gravure printing (back solid printing) method>
-Pinholes and color irregularities will inevitably occur.
-Gravure prints are easily noticeable. In particular, when formed into a molded product, it appears prominently in the deeply squeezed portion.
-If the printing thickness is increased to increase the color developability (the cell of the plate is enlarged), the above phenomenon becomes more prominent, and the plate appears even before molding.
-The thickness of the printing layer is several μm or less, and therefore it is difficult to obtain a design with sharpness and color development. In deep-drawn areas, the color becomes extremely light and loses commercial value.
-After printing, when the printing surface is laminated with another film, delamination is likely to occur between the printing layer and the printing film. The delamination is particularly likely to occur at the part that has been deep drawn during molding.
-During production, the concentration of the ink increases due to the volatilization of the solvent, so it is necessary to add the solvent while constantly monitoring the ink concentration.

<When using a colored film>
Raw material colored film is manufactured by adding a colorant to the raw material resin composition and extruding or calendering, so it is virtually impossible to produce a wide variety of original film that can be used in various colors and shades. It is not possible, and if it is produced in large quantities, it becomes a large stock burden.

<Dyeing method>
In order to provide a film for a decorative sheet that enables a decorative sheet having a novel texture and imparting a novel image, the present inventors have disclosed a method by dyeing in Japanese Patent No. 3718696. Although proposed, the dyeing method has the following problems.

-Since a process for dyeing the film is required separately, the cost becomes high.
・ Dyeing is performed by immersing the film in a large capacity dye bath for a long time. However, coloring is usually insufficient in one dyeing, so the dyeing process must be repeated 3 to 6 times, and the cost is high. The defect rate also increases.
・ High skill is required to adjust the dyeing conditions (temperature, time, concentration, etc.) and quality control is difficult. It is easy to cause color blur between lots.
-The film which can be used is limited to the polyester film, acrylic film, etc. with dyeability.
-Since a large amount of waste liquid is generated, the environmental load is high and waste liquid treatment costs are required.
-When using a solvent type dyeing liquid, it is limited to the material resistant to the solvent.
In the case of using an aqueous type dyeing liquid, the dyeing liquid is processed at a high temperature of 80 ° C. to 90 ° C., so that it is limited to a material having heat resistance. For example, an acrylic film has high transparency and dyeability, but it is difficult to process due to poor solvent resistance, heat resistance, and tearability, and easily causes flare and wrinkles.
・ It is necessary to have a stock of dyed film, which increases storage costs. Have inventory risk.
-It is easy to cause blocking by winding after dyeing.
-Since the dye is inferior in weather resistance to the pigment, discoloration tends to occur when a dyed film is disposed in the portion close to the outermost layer, and the use thereof is limited.
-A protective film is required on the surface because discoloration occurs in the friction fastness test.

Thus, all of the conventional gravure printing method, raw material colored film method, and dyeing method have problems.
Japanese Patent No. 3718696

  The present invention does not have many problems that the above-described conventional gravure printing method, raw material coloring film method, and dyeing method have, and has a high-grade gloss that cannot be obtained by these conventional techniques, An object of the present invention is to provide a new decorative sheet having a depth, a thickness, color development, and metallic luster.

  In order to solve the above problems, the decorative sheet of the present invention is a thermoplastic resin film having a thickness of 50 μm or more and a parallel light transmittance of 90% or more, and a thickness of 10 μm or more. And the 1st adhesive bond layer which consists of an adhesive mix | blended with a coloring agent, the film layer for metal holding, the metal layer, the 2nd adhesive bond layer, and the base material sheet which consists of a thermoplastic resin are laminated | stacked in this order. This is a decorative sheet.

  Moreover, the decorating sheet of this invention is the decorating sheet of Claim 1 as described in Claim 2, The turbidity of the thickness direction of a said 1st adhesive bond layer is 15 or less, It is characterized by the above-mentioned. And

  Moreover, the decorative sheet of the present invention is characterized in that, as described in claim 3, in the decorative sheet according to claim 1 or 2, the first adhesive layer is formed by a die coater. To do.

  As described in claim 4, the method for producing a decorative sheet according to the present invention is the method for producing a decorative sheet according to claim 1 or 2, wherein the thickness of the adhesive mixed with a colorant is the same. Having a first adhesive layer forming step of applying to a thermoplastic resin film of 50 μm or more and a parallel light transmittance of 90% or more and / or the metal holding film holding a metal layer with a die coater; It is a manufacturing method of the decorating sheet characterized by these.

  As described in claim 5, the resin molded product of the present invention is a resin molded product formed using the decorative sheet according to any one of claims 1 to 3. .

  According to the decorative sheet of the present invention, the gravure printing method, the raw material coloring film method, and the dyeing method do not have many problems and have a high-class feeling that cannot be obtained by these conventional techniques. A novel decorative sheet having gloss, depth, territory, color development, and metallic luster can be obtained.

  Moreover, according to the decorating sheet of Claim 2, when receiving strong light, such as outdoors, a stronger stick is obtained and it can give to the person who sees a vivid impression.

  In addition, according to the decorative sheet according to claim 3, the thickness of the first adhesive layer can be easily made 10 μm or more, and the thickness is made thicker than 10 μm. , Depth, color developability, and metallic luster can be made deeper.

  According to the method for producing a decorative sheet of the present invention, the first adhesive layer can be easily thickened to 10 μm or more. At this time, depth, color developability, and metallic luster can be made deeper.

  According to the resin molded product of the present invention, it is possible to obtain a molded product having a gloss, depth, stickiness, color developability, and metallic luster with a high-class feeling that could not be obtained by the prior art.

  As described above, the decorative sheet of the present invention comprises a thermoplastic resin film having a thickness of 50 μm or more and a parallel light transmittance of 90% or more, an adhesive having a thickness of 10 μm or more and a colorant blended therein. The first adhesive layer, the metal holding film layer, the metal layer, the second adhesive layer, and the base sheet made of a thermoplastic resin are decorative sheets in which the base sheet is laminated in this order.

Here, the cross section of an example A of such a decorative sheet is schematically shown in FIG.
Reference numeral 1 in the figure denotes a thermoplastic resin film having a thickness of 50 μm or more and a parallel light transmittance of 90% or more, and a first adhesive comprising an adhesive having a thickness of 10 μm or more and a colorant. The layer 2, the metal holding film layer 3, the metal layer 4, the second adhesive layer 5, and the base sheet 6 made of a thermoplastic resin are laminated in this order. In the decorative sheet A, the surface of the metal holding film layer 3 on the metal layer side is subjected to hairline processing, and a large number of fine linear grooves 3a are formed.

  Examples of the resin component constituting the thermoplastic resin film having a parallel light transmittance of 90% or more include polyolefin resins, fluorine resins, polyurethane resins, acrylic resins, polyester resins, polycarbonate resins, and the like. An acrylic resin is preferable because of excellent moldability, scratch resistance, and weather resistance.

  Here, the thickness of the film is good as long as the parallel light transmittance satisfies 90% or more, but if it is too thick, the moldability will be low, and if it is too thin, the depth and gloss as a decorative sheet will be obtained. Since there is a tendency not to be formed, it is usually set to 50 μm or more and 500 μm or less. A more preferable range is 50 μm or more and 250 μm or less.

  The first adhesive layer needs to be made of an adhesive having a thickness of 10 μm or more and a colorant. Here, as the adhesive to be used, it is preferable to use a colorless and transparent adhesive unless a dark colorant such as black or brown is used in combination. Moreover, it is necessary to have heat resistance that can withstand at least heat during molding. As such a thing, a urethane type adhesive agent is mentioned.

  Moreover, as a coloring agent to be used, a general colored thing can be used as a coloring agent. That is, pigments, dyes and the like are used alone or in appropriate combination.

  If the blending ratio of the colorant to the adhesive in the first adhesive layer is too high or too low, it becomes difficult to obtain a depth. The optimum blending range depends on the color and use of the colorant, but usually it is preferably 0.5 part or more and 100 parts or less, more preferably 1 part or more and 50 parts or less per 100 parts by weight of the adhesive. It is.

  Mixing of the colorant into the adhesive can be easily and uniformly dispersed with a dissolver or the like.

  In the present invention, the first adhesive layer needs to have a thickness of 10 μm or more. If the thickness is less than 10 μm, the depth is sufficiently deep and vivid color development cannot be imparted. A preferable range is 15 μm or more. Although it can be made thicker, about 50 μm, at this time, it is easy to cause quality deterioration due to poor drying of the diluted solvent of the adhesive, and it is usually preferably 30 μm or less.

  Such a thick adhesive layer is not common, but, for example, between the above thermoplastic resin film and a metal holding film described later by a die coat method using a die coater, one of these surfaces, or both surfaces Further, by applying an adhesive containing a colorant, it can be formed efficiently and with a uniform thickness.

  Here, as a manufacturer of a die coater, Inoue Metal Industry Co., Ltd., Hirano Techseed Co., etc. are known.

  Furthermore, the kind of adhesive used, the kind and coloring amount of the colorant, and the thickness of the first adhesive layer are adjusted so that the turbidity in the thickness direction of the first adhesive layer is 15 or less. It is necessary to get good garnish.

  As the metal holding film, the winding length per roll that can be put in the vacuum vessel per setup process at the time of forming a metal layer, which will be described later, can be remarkably increased. It is preferable to use a material having good adhesion to.

  The thickness of the metal holding film is 100 μm or less, preferably 40 μm or less, more preferably 25 μm or less. The lower limit of the thickness is sufficient if it is sufficient for the formation of the metal layer and subsequent handling, and is 3 μm or more, preferably 5 μm or more.

  The metal holding film is preferably a polyester film or a polyolefin film because of its excellent adhesion to the metal layer. In order to obtain a high degree of molding freedom as a decorative sheet, various modified polyester films with improved stretchability can also be used.

  Furthermore, it is preferable that at least one surface of the metal holding film is subjected to hairline processing because it can give a high-class feeling when the final product is obtained. Furthermore, since the adhesiveness with a metal layer can be improved by giving a hairline to the surface at the side of metal layer formation, it is more preferable.

  The metal layer of the metal holding film is formed by a vacuum application technique such as vacuum deposition, CVD, ion plating, plasma CVD, or sputtering. In this case, it is desirable in terms of cost in forming a metal layer that a longer film (sheet) can be accommodated in a vacuum container portion of a limited size of these metal film forming apparatuses.

  Examples of the metal to be used include aluminum, chromium, indium, tin, nickel, and alloys thereof. In particular, the metallic luster can be sufficiently secured even at the corners, and the corrosion resistance is high. Indium is desirable.

  The thickness of the metal layer formed on the metal holding film is preferably 100 mm or more and 1000 mm or less. If the thickness is less than 100 mm, the effect of forming the metal layer cannot be sufficiently obtained. On the other hand, if it exceeds 1000 mm, the cost increases, which is not practical.

  The metal holding film is arranged so that the surface on which the metal is formed is on the base sheet side. That is, in the production of the decorative sheet in the present invention, the lamination is usually performed by gradually bonding the upper layer to one side of the base sheet. Thereby, the handleability of the intermediate product is good and the yield is improved, but the metal forming surface of the metal holding film is particularly easily damaged.

  As the adhesive used in the second adhesive layer, one having sufficient adhesive force and at least heat resistance that can withstand the heat during molding can be used, and generally a polyurethane adhesive or the like can be used. it can. The thickness of the second adhesive layer is usually 2 μm or more and 20 μm or less.

  The resin that forms the base sheet is made of acrylonitrile-butadiene-styrene copolymer, polypropylene, polycarbonate resin, polystyrene, polyvinyl chloride, etc. Select as appropriate.

  Moreover, although the thickness of a base material sheet layer is determined in consideration of a handleability, a moldability, rigidity, cost, etc., it is normally 100 micrometers or more and 1000 micrometers or less.

  Unless otherwise specified, the decorative sheet of the present invention is formed by sequentially adhering the above layers to one side of the base sheet layer as described above.

  The decorative sheet thus formed is formed by vacuum forming, pressure forming, vacuum pressure forming, or the like, or after being formed by these, and insert-molded as an insert to form a molded product.

  The decorative sheet and molded product of the present invention thus molded are defects in gravure printing, the occurrence of pinholes and color unevenness, the visibility of gravure printing, sharpness and low color development, Color thinning, delamination, ink density problems, etc. do not occur at deep-drawn portions, and it is difficult to handle high-mix low-volume production when stock film is used, and the problem of inventory burden does not occur. In addition, process increase problems in the dyeing method, the necessity of repeated treatment, and associated yield reduction problems, difficulty in quality (coloring) management, film type limitations, waste liquid treatment, stock burden, blocking, discoloration, discoloration The problem such as does not occur.

  In particular, with regard to the inventory of intermediate products, in the decorative sheet of the present invention, the intermediate material at the stage where the metal holding film layer holding the metal layer is bonded to the base sheet via the second adhesive layer is versatile. Is high, so there is little inventory burden. That is, if the intermediate material at this stage is produced in advance, a colorant having a color according to the demand of the customer is blended with the adhesive, and is also bonded to the thermoplastic resin film according to the demand of the customer. It becomes possible to cope with high-mix low-volume production.

  Here, the intermediate material and the thermoplastic resin film at the stage where the metal holding film layer holding the metal layer is bonded to the base sheet via the second adhesive layer are bonded to the first adhesive layer. About the manufacture of the decorating sheet based on this invention performed by bonding together with an agent layer, the manufacturing apparatus and method are demonstrated using FIG.

  In FIG. 1, a die coater is shown surrounded by a broken line and indicated by a reference character α0. The service tank α1 contains a first adhesive β2 prepared in advance, and the service tank α1 A pump α2 is connected to the pipe connected to the bottom, and the first adhesive β2 is supplied to the nozzle portion α3 by the pump α2.

  On the other hand, the thermoplastic resin film is wound in a roll shape (roll β1) and supplied to the die coater α0, and the first adhesive β2 supplied from the nozzle portion α3 is provided on one side of the first adhesive. A layer is formed.

  The first adhesive β2 of this first adhesive layer is supplied between the rolls of a pair of lami rolls α5 that have been removed from the solvent component by the drying oven α4 and maintained at a temperature suitable for bonding.

  Further, the intermediate material at the stage where the metal holding film layer holding the metal layer on the base sheet via the second adhesive layer is bonded with the second adhesive layer is wound into a roll (roll β3). After all, it is supplied between the rolls of the pair of lami rolls α5, and is bonded by the first adhesive layer and the thermoplastic resin film on which the first adhesive layer is formed.

  After these layers are pasted together, they are cooled by a cooling roll α6 and then wound into a roll shape (β4) to obtain a decorative sheet according to the present invention.

  Examples of the decorative sheet of the present invention will be specifically described below.

<Formation of metal layer on metal holding film>
Hairline processing was performed on one side of a modified polyester film having a thickness of 25 μm (Teflex FT-3 manufactured by Teijin DuPont Films Ltd.) using a hairline processing machine.

  An indium layer having a thickness of 40 nm was formed on the hairline processed surface by vacuum deposition.

<Lamination of metal holding film with metal layer formed on substrate sheet>
An acrylonitrile-butadiene-styrene copolymer sheet having a thickness of 250 μm was used as the base sheet.

  As an adhesive for the second adhesive layer, urethane adhesive (from Toyo Ink Co., Ltd. TM-K51 (15 parts by weight), CST-RT85 (2.25 parts by weight), ethyl acetate (15 parts by weight) Preparation)) is applied to one side of the above base sheet from a die coater manufactured by Inoue Kinzoku Kogyo Co., Ltd. so that the thickness after solvent removal is 10 μm, and then the solvent, ethyl acetate, is removed sufficiently by heating. To form a second adhesive layer. Thereafter, the metal holding film on which the metal layer was formed was bonded so that the metal layer was on the base sheet side.

<Preparation of first adhesive, decorative sheet A and molded product of the present invention>
In the first adhesive layer, the same urethane adhesive as that used in the second adhesive layer was mixed with a colorant. That is, using a dissolver so that NSP-VG 105D (RED) (red pigment, solid content concentration 20%) manufactured by Nichihiro Bix Co., Ltd. as a colorant is 46.5 parts by weight with respect to 100 parts by weight of the adhesive. Blended.

  Next, the adhesive mixed with the colorant is applied to the metal holding film of the above-mentioned laminated sheet using a die coater so that the thickness after removal of the solvent by drying is 15 μm. Ethyl was sufficiently removed by evaporation to form a first adhesive layer. Subsequently, a polymethyl methacrylate film (S001, manufactured by Sumitomo Chemical Co., Ltd.) having a thickness of 50 μm and a parallel light transmittance (measured with ND-Σ80 manufactured by Nippon Denshoku Industries Co., Ltd.) of 92% is bonded to the decoration according to the present invention. Sheet A (Example 1) was obtained.

  Here, the adhesive containing the colorant was applied to a glass plate using an applicator so that the thickness after evaporation by solvent evaporation was 15 μm, which was the same as that of the second adhesive layer. Was sufficiently evaporated to form an adhesive film. About the adhesive film | membrane with which the coloring agent produced in this way was mix | blended, it was 10.93 when turbidity was measured by Nippon Denshoku Industries Co., Ltd. ND- (Sigma) 80.

  The decorative sheet A was evaluated by a panel of 10 industrial designers with room light for gloss, color development, and metallic luster, and the depth of color and the light, that is, the reflected light from the bottom. Vividness (i.e., the depth of color and territory seemingly contradictory, but in gem-grade ruby, sapphire, etc., deep color and vivid erection from the bottom are compatible. ) For outdoor sunlight (the following sensory evaluation was conducted by a similar panel).

  As a result, it has a deep color tone (red), vivid color, clearness, and has a completely new metallic luster appearance with a translucent feel reminiscent of ruby. Received evaluation (hereinafter, sensory evaluation was conducted by a similar panel).

  The surface of the decorative sheet A on the base sheet side was laminated with a polycarbonate sheet having a thickness of 3 mm by extrusion lamination, and then formed into a three-dimensional shape by vacuum forming to obtain a suitcase shell. Was not compromised.

<Decorative sheet B: Comparative example>
As with the decorative sheet A, however, a polymethyl methacrylate film (S001 manufactured by Sumitomo Chemical Co., Ltd.) having a thickness of 50 μm and a parallel light transmittance of 92% was used in the decorative sheet A. A decorative sheet B was obtained using a thin film having a thickness of 25 μm (a polymethyl methacrylate film manufactured by Mitsubishi Rayon Co., Ltd., parallel light transmittance: 92%).
This decorative sheet B was clearly evaluated as having a color lacking depth as compared with the decorative sheet A, having less gloss, and having a weak impression.

<Decorative sheet C: Comparative example>
As with the decorative sheet A, however, a polymethyl methacrylate film (S001 manufactured by Sumitomo Chemical Co., Ltd.) having a thickness of 50 μm and a parallel light transmittance of 92% was used in the decorative sheet A. A decorative sheet C was obtained using a modified polyester film having a low parallel light transmittance of 88% (Teflex FT-3 manufactured by Teijin DuPont Films Co., Ltd., thickness: 50 μm).
This decorative sheet C was clearly evaluated as having no deep color, less gloss, and weaker impression than the decorative sheet A.

<Decorative sheet D: Comparative example>
As with the decorative sheet A, however, the first adhesive layer having a thickness of 15 μm was formed in the decorative sheet A, but this was as thin as 5 μm. However, the blended pigment was more than in the case of the decorative sheet A. The decorative sheet D was obtained by adding a large amount and finally adjusting the color so as to have the same darkness as the decorative sheet A.
The decorative sheet D was also evaluated to be clearly not deeper in color than the decorative sheet A, less glossy, and weak in impression.

<< Printed product (decorative sheet E) >>
The decorative sheet E which performed the red coloring by printing which showed the cross section in FIG. 3 as a model was created.

  In the same manner as the decorative sheet A, an intermediate material at a stage in which the metal holding film layer holding the metal layer on the base sheet via the second adhesive layer was bonded to the second adhesive layer was obtained.

  A gravure printing method (helio) is applied to one surface (bonding surface) of a polymethyl methacrylate film (S001 manufactured by Sumitomo Chemical Co., Ltd.) having a thickness of 50 μm and a parallel light transmittance of 92% on the metal holding film side of the intermediate material. The adhesive layer 2 with the same urethane-based adhesive as that used in the decorative sheet A, with the colored film in which the printed layer 7 is formed with red ink at 100 lines) with the printed layer side being the intermediate material side. The decorative sheet E was obtained by pasting through “(thickness 15 μm, formed by a die coater)”.

  The color and tone of the decorative sheet E are adjusted according to the printing conditions so as to be at the same level as the decorative sheet A.

  When this decorative sheet E was evaluated in comparison with the decorative sheet A, the glossy, deep, and inferiority of the decorative sheet A was evaluated. Met. Regarding such evaluation of gloss, it is considered that the color blur due to the gravure plate is particularly noticeable.

<< Dyed goods (decorative sheet F) >>
Only the polymethyl methacrylate layer of the laminated film (KFC film made by Kureha Co., polyvinylidene fluoride layer: thickness 5 μm, polymethyl methacrylate layer: thickness 45 μm) formed by co-extrusion of polyvinylidene fluoride and polymethyl methacrylate (Dyeing condition: immersed in 90 ° C. dyeing bath for 30 minutes, then washed with water, then dried at 75 ° C. for 90 seconds, this dyeing / washing / drying was repeated three times in total, and the dyed transparent film A composite film dyed so that the density of the color in the depth direction from one surface to the other surface gradually increases was obtained. Here, the dyeing conditions were set so that the color and color tone of the decorative sheet finally obtained were at the same level as the decorative sheet A.

  Next, the dyed composite film was adhesive layer 2 ′ (thickness: 15 μm, die coater) made of the same urethane adhesive as that used in the decorative sheet with the dyed surface facing the intermediate material. In the same manner as the decorative sheet A, the base material sheet is bonded to the intermediate material at the stage of bonding the metal holding film layer holding the metal layer via the second adhesive layer, A decorative sheet F according to the technique described in Japanese Patent No. 3718696 was obtained.

  When this decorative sheet F was evaluated in comparison with the decorative sheet A, it received an evaluation result that it was slightly inferior to the decorative sheet A in depth, and inferior to the decorative sheet A.

  Considering from the evaluation results of the decorative sheet F and the decorative sheet A, the depth and territory can arrange a transparent layer near the surface layer, and the colorant can be applied to the metal layer in the decorative sheet as much as possible. It was thought that it would be more highly expressed when placed close together.

<Decoration sheet G: Example>
As with the decorative sheet A, however, NSP-VG 105D (RED) (red) (manufactured by Nihongo Bix Co., Ltd.) as the colorant in the urethane adhesive used by blending the colorant used in the first adhesive layer The decorative sheet G was obtained with a blending amount of (pigment) of 120 parts by weight instead of 46.5 parts by weight. Further, when the turbidity of 15 μm in thickness after drying of the adhesive to which more colorant was added was examined, it was 20.

  When this decorative sheet G was evaluated in comparison with the decorative sheet A, it was the same as the decorative sheet A in depth, but received an evaluation result that it was slightly inferior to the decorative sheet A.

<Decorative sheet H: Example>
As in the case of the decorative sheet A, however, instead of NSP-VG 105D (RED) manufactured by Nihongo Bix Co., Ltd. as the colorant in the urethane-based adhesive used by blending the colorant used in the first adhesive layer NSP-VP 663 (D) (BLUE) (blue pigment solid content concentration 20% by weight) was used as a blue pigment, and a decorative sheet H was obtained as a blend so as to be 46.5 parts by weight. Further, when the turbidity of 15 μm in thickness after drying of the adhesive to which more colorant was added was examined, it was 5.58.

  When this decorative sheet H was evaluated in comparison with the decorative sheet A, the decorative sheet H was different in color, but in terms of luxury luster, depth, territory, color development, metallic luster, and impression. Received the same evaluation as A

It is a model sectional view showing example A of a decoration sheet concerning the present invention. The intermediate material and the thermoplastic resin film at the stage where the metal holding film layer holding the metal layer is bonded to the base sheet via the second adhesive layer are pasted by the first adhesive layer. It is a model figure which shows the manufacturing process of the decorating sheet which concerns on this invention performed together. It is model sectional drawing of the decorating sheet G which uses the printing technique of a comparative example. It is a model sectional view of decorating sheet H which uses the dyeing technique of a comparative example.

Explanation of symbols

A A decorative sheet according to the present invention B A decorative sheet according to the present invention 1 A thermoplastic resin film 2 having a thickness of 50 μm or more and a parallel light transmittance of 90% or more and a thickness of 10 μm or more, and a colorant is blended. First adhesive layer 3 made of adhesive agent Metal retaining film layer 3a Fine linear groove 4 Metal layer 5 Second adhesive layer 6 Base sheet α0 made of thermoplastic resin Die coater

Claims (5)

  A thermoplastic resin film having a thickness of 50 μm or more and a parallel light transmittance of 90% or more, a first adhesive layer comprising an adhesive having a thickness of 10 μm or more and a colorant, a metal holding film layer, A decorative sheet, wherein a base sheet made of a metal layer, a second adhesive layer, and a thermoplastic resin is laminated in this order.   The decorating sheet according to claim 1, wherein the first adhesive layer has a turbidity in the thickness direction of 15 or less.   The decorative sheet according to claim 1 or 2, wherein the first adhesive layer is formed by a die coater.   In the manufacturing method of the decorating sheet of Claim 1 or Claim 2, the thermoplastic resin film whose thickness is 50 micrometers or more, and whose parallel light transmittance is 90% or more for the adhesive agent by which the coloring agent was mix | blended, and The manufacturing method of the decorating sheet | seat characterized by having the 1st adhesive bond layer formation process apply | coated to the said film for metal holding | maintenance with which the metal layer was hold | maintained with a die coater.   A resin molded product formed using the decorative sheet according to any one of claims 1 to 3.