JP3679505B2 - Method for producing hairline insert film with window and hairline insert molded product with window - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hair run insert film integrated on a molded product at the same time as injection molding, and a method for producing a hair run insert molded product, and examples of products include acoustic equipment, furniture surface materials, and architectural interior and exterior materials. It can be used for surface decoration such as cabinet surface materials, kitchen door interior materials, and automobile interior parts.
[0002]
[Prior art]
Conventionally, surface decoration such as acoustic equipment is a method such as thermal transfer or simultaneous painting method for a transfer foil in which a metal vapor deposition layer or a pattern printing layer is sequentially formed on a transparent base sheet on which hairlines are formed. It was done in.
[0003]
[Problems to be solved by the invention]
However, since hairline processing is a system in which a film is continuously sent to sandpaper and the surface of the film is shaved in a hairline pattern, it cannot be patterned. Therefore, the patterned design which combined the vapor deposition metal color part and the pattern printing part with a hairline, and the transparent window part without a hairline cannot be formed on one base sheet.
[0004]
An object of the present invention is to solve the above-described problems and provide a hairline insert-molded product with a window having high design properties.
[0005]
[Means for Solving the Problems]
To achieve the above object, a window portion with hairline th insert film of the inventions, the hairline eyes is formed on one surface of a transparent base sheet, a metal deposited layer or picture-printed layer is formed on the other surface A hairline insert film in which a window portion is formed by punching, wherein a film for preventing the back of a molded resin from covering at least the window portion is formed on the hairline .
[0006]
The method for producing a hairline insert-molded product with a window part according to the present invention is the above-mentioned hairline insert film with a window part in an injection-molding mold so that the film for preventing the back of the molded resin and the mold surface are in contact with each other. After placing the mold and closing the mold, the molding resin is injected into the mold, the molding resin is wrapped around the window, and the molding resin is solidified, thereby bonding the hairline insert film with the window to the resin molded product, The film for preventing the back of the molded resin is peeled off.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the manufacturing method of the hairline insert film with a window part of this invention and the hairline insert product with a window part is demonstrated in detail, referring FIGS . 1-3 . 1 is a hairline insert film with a window part, 2 is a base sheet, 3 is unevenness of a hairline, 4 is a pattern printing layer, 5 is a metal vapor deposition layer, 6 is a film for preventing the back of a molded resin, 7 is a movable type, 8 Is a fixed mold, 11 is an injection port, 12 is a resin molded product, and 13 is an insert molded product with a window.
[0008]
The hairline mesh insert film 1 with a window part has a hairline mesh formed on one side of a transparent base sheet 2. On the other surface of the transparent base sheet 2, a metal vapor deposition layer 5 or a pattern printing layer is formed. Window with hairline th insert film 1 have a window portion which is stamped on the hairline eyes, molded resin back around prevention film 6 covering at least the window portion is formed (Fig. 1).
[0009]
The transparent base sheet 2 is a film or sheet made of various resins such as polyester, acrylic, polypropylene, polyvinyl chloride, and polycarbonate. The base sheet 2 has a thickness of 10 μm to 500 μm.
[0010]
The hairline may be formed by a method in which a film is continuously sent to sandpaper and the film surface is cut into a hairline shape, or a printing method using pigmented resin ink. The cross section of the hairline is uneven. The depth of the concave and convex portions is preferably half or less of the thickness of the base sheet 2, for example, 2 μm to 10 μm.
[0011]
The pattern printing layer 4 is formed on the surface of the transparent base sheet 2 where the hairline is not formed. When the metal vapor deposition layer 5 is formed first, the pattern printing layer 4 may be formed on the metal vapor deposition layer 5. Examples of the pattern of the pattern printing layer 4 include a grain pattern, characters, symbols, and numbers. Examples of the pattern printing layer 4 include a pigment ink layer, a dye ink layer, a glitter ink layer, and an anchor layer. An adhesive layer is formed on the pattern layer. The pattern printing layer 4 is made of ink containing various pigments and dyes in a resin binder. The glitter ink layer is made of ink in which pearl powder, aluminum powder, or the like is mixed in a resin binder. The anchor layer is formed in order to improve the adhesion between the pigment ink layer, the dye ink layer, the glitter ink layer, the anchor layer, the adhesive layer, and the like. Examples of the adhesive layer include acrylic resin, urethane resin, polyester resin, polyamide resin, ethylene butyl alcohol resin, ethylene vinyl acetate copolymer, vinyl chloride / vinyl acetate copolymer, and the like.
[0012]
The metal vapor deposition layer 5 is formed on the surface of the transparent base sheet 2 where the hairline is not formed. When the pattern printing layer 4 is formed first, the metal vapor deposition layer 5 may be formed on the pattern printing layer 4. The metal vapor deposition layer 5 is formed of a metal such as aluminum, chromium, silicon dioxide, or zinc sulfide by a vacuum vapor deposition method or the like.
[0013]
The window portion is a punched hole and penetrates the insert film. For punching, there is a method of punching with a Thomson die.
[0014]
The film 6 for preventing the back side of the molded resin includes a chargeable film and an adhesive film. The film 6 for preventing the back side of the molded resin can be temporarily attached to an insert film or a mold by static electricity or adhesiveness. The film 6 for preventing the back of the molded resin from covering is at least a size that covers the window portion. The thickness of the molded resin back side prevention film 6 is about 10 to 100 μm. If the thickness is 10 μm or less, wrinkles are likely to occur, and if it is 100 μm or more, it is difficult to temporarily wear on the hairline. Examples of the chargeable film include films having a surface specific resistance value of 10 ¹⁵ (10 15) ohm or more, such as polyethylene, polypropylene, polyester, and polyvinyl chloride. As an adhesive film, there is a polyurethane film. Alternatively, there are various plastic films coated with a rubber adhesive, a vinyl ether adhesive, an acrylic adhesive, or the like.
[0015]
In the method for producing a hairline insert-molded article with a window portion according to the present invention , a hairline is formed on one side of the transparent substrate sheet 2 described above, and a metal vapor-deposited layer 5 or a pattern printed layer 4 is formed on the other side. A hairline eye insert film with a window portion in which a film resin for preventing backside molding 6 covering at least the window portion is formed on the hairline, and the film 6 for preventing backside molding resin and a mold It is placed in the injection mold so that it comes into contact with the surface, and after closing the mold, the molding resin is injected into the mold, and the molding resin goes around the window to solidify the molding resin. There is a method in which a hairline insert film with a window part is adhered to the product 12 and the film 6 for preventing the back side of the molded resin is peeled off.
[0016]
First, the said hairline insert film 1 with a window part is arrange | positioned in the metal mold | die for injection molding which consists of the movable mold | type 7 and the fixed mold | type 8 (FIG. 2) . It arrange | positions so that the film 6 for hairline eyes or a molding resin back around prevention may contact the movable mold | type 7, and the pattern printing layer 4 side may contact a molding resin. After placement, the hairline insert film 1 with a window is heated and softened to be easily deformed, and is vacuum-sucked from the vacuum suction hole provided in the inner surface of the cavity of the movable mold 7 to be inserted into the hairline insert film with a window May be brought into close contact with the inner surface of the cavity of the movable mold 7.
[0017]
Next, the injection mold is closed. Molding resin is injected and filled into the cavity from the injection port 11 provided in the fixed mold 8. The pattern printed layer 4 of the hairline insert film 1 with a window part contacts the molding resin, and the molding resin enters the window part. At this time, since at least the window portion is covered with the molded resin back-around prevention film 6, it does not go around the hairline. It is more effective to cover the entire surface of the hairline with the film 6 for preventing the back side of the molded resin. Selecting the base sheet 2 having a strong rigidity and heat resistance so that the unevenness of the hairline formed on the base sheet 2 is not crushed by the injection pressure of the molding resin; Or the thing with a small space | interval of the convex part of a hairline can be selected. For example, even if the same hairline is formed, the unevenness of the hairline is less likely to be crushed in the polyester resin than in the acrylic resin.
[0018]
Next, the injection molded resin filled in the cavity is solidified to form the resin molded product 12, and at the same time, the hairline insert film 1 with a window is adhered to the surface. After the resin molded product 12 is cooled and solidified, and the hairline insert film 1 with a window is bonded to the resin molded product 12, the injection mold is opened and the hairline insert film 1 with a window is bonded to the insert the molded article Eject, separating the molded resin back around prevention film 6. The window part of the hairline insert film 1 with a window part becomes a transparent window part without a hairline (FIG. 3 ) .
[0019]
【Example】
Using a polyester film with a thickness of 125 μm as a base sheet and a sand paper with a surface roughness of 10 μm, a hairline with a depth of 10.0 μm is formed on the surface of the base sheet on which the hairline is not formed. A pattern printing layer consisting of 60% by weight acrylic resin as the resin binder and 40% by weight heavy calcium carbonate as the pigment is formed, and a vacuum deposition layer with a thickness of 400mm is formed on it by vacuum deposition using aluminum. Then, an adhesive layer having a film thickness of 2.5 μm was obtained by a gravure printing method using polyvinyl chloride and punched into a Thomson type rectangular shape to form a window portion. A polyester film coated with a pressure-sensitive adhesive was attached to the window resin and the hairline irregularities so as to attach a film for preventing the back of the molded resin.
[0020]
The above-mentioned hairline insert film with window part is placed in an injection mold so that the film for preventing the back of the molded resin comes into contact with the mold surface, and after closing the mold, the molding resin temperature is 220 to 250 ° C. Under conditions of a mold temperature of 40 to 60 ° C., a colorless and transparent acrylonitrile butadiene polystyrene copolymer resin is injected as a molding resin into a mold, and the molding resin is solidified to form a hairline insert film with a window on the resin molded product. After bonding, the film for preventing the back side of the molded resin was peeled off.
[0021]
【The invention's effect】
Since this invention consists of the above structure and an effect | action, the hairline eyes insert molded product with a window part which has a transparent window part and a hairline decoration part is obtained. Moreover, a transparent window part and a hairline decoration part are formed simultaneously, and it can reduce a cost.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a hairline insert film with a window portion according to the present invention.
FIG. 2 is a cross-sectional view showing one step of a method for producing a hairline eye insert molded product with a window portion of the present invention.
FIG. 3 is a cross-sectional view showing an example of a hairline insert-molded product with a window obtained by the method for manufacturing a hairline insert-molded product with a window according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hairline eyes insert film with a window part 2 Base sheet 3 Unevenness of a hairline line 4 Pattern printing layer 5 Metal vapor deposition layer 6 Molding resin back-around prevention film 7 Movable type 8 Fixed type 11 Injection port 12 Resin molded product 13 Hairline with a window part Eye insert molding

Claims (2)

A hairline insert film in which a hairline is formed on one side of a transparent substrate sheet, a metal vapor-deposited layer or a pattern printing layer is formed on the other side, and a window is formed by punching , at least on the hairline A hairline eye insert film with a window portion, wherein a film for preventing the back of a molded resin covering the window portion is formed . The hairline insert film with a window part according to claim 1 is placed in an injection mold so that the film for preventing the back side of the molded resin comes into contact with the mold surface, and after the mold is closed, the molded resin is molded into the mold. By injecting into the mold, letting the molding resin wrap around the window part, and solidifying the molding resin, the hairline insert film with window part is adhered to the resin molded product, and the molding resin backside prevention film is peeled off The manufacturing method of the hairline eyes insert molded article with the window part characterized by the above-mentioned.

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