JP5217282B2 - Case manufacturing method - Google Patents

Description

  The present invention relates to a casing manufacturing method for manufacturing a casing by injecting a molten material into a mold and curing it.

  2. Description of the Related Art In recent years, technologies related to electronic devices such as computers are rapidly progressing, and a wide variety of high-performance electronic devices are on the market. In particular, electronic devices that can be easily used by ordinary people, such as personal computers, small communication devices typified by mobile phones, small audio devices for listening to music, and digital cameras, are remarkable. Research and development is also thriving.

  In most electronic devices, the functional center of the electronic device is protected inside a housing that is an outer shell of the electronic device, and the appearance of the electronic device determines the appearance of the electronic device. Therefore, the good appearance is an important element of the housing. Recently, in addition to appearance features such as colors and patterns, there is an increasing demand for electronic devices that place emphasis on the tactile feel when touching electronic devices. Devising the uneven pattern on the surface of the housing so as to give a good tactile sense has come to have a great significance in manufacturing the housing.

  When attaching a concavo-convex pattern to a casing, a method in which a shape to be a pattern of the concavo-convex pattern is formed in advance on a wall surface of a mold used when molding the casing main body is often used. However, since the shape that can be formed on the wall surface of the mold is generally limited to a rough and simple shape, it is difficult to obtain a case with a delicate and delicate tactile sensation that a recent consumer prefers. Therefore, recently, a sheet-like member that provides a desired tactile sensation is prepared in advance, and this sheet-like member is placed in a mold for molding the casing body so that the sheet-like member is formed when the casing body is molded. There has been proposed a method of manufacturing a casing that gives a desired tactile sensation by covering the surface of the casing main body with a member and using the sheet-like member as an outer wall of the casing (for example, Patent Document 1 and Patent Document 1). 2 and Patent Document 3). Specifically, for example, a resin film having a concavo-convex pattern on the surface can be considered as the sheet-like member. Here, an example of the manufacturing method of the housing | casing which employ | adopted the system which coat | covers the surface of a housing | casing main body with a sheet-like member is introduced.

  FIG. 1 is a schematic diagram showing a manufacturing process in a manufacturing method of a housing devised to give a desired tactile sensation by attaching a resin film having a concavo-convex pattern on the surface.

  In this figure, a male mold 30 and a female mold 31 that form a space (cavity) that becomes a mold of the casing body when the mold is clamped, and a concavo-convex pattern is provided on the surface so as to give a desired tactile sensation. Each cross section of the resin injection device 40 that injects the resin 50 ′ into the cavity by injecting the resin 50 ′, which is a material of the resin film 21 ′ and the casing main body, at a high temperature and melted from the tip using the screw 41 is shown. Has been. In this manufacturing method, first, a male mold 30 and a female mold 31, a resin film 21 ', and a resin injection device 40 having a cross-sectional shape shown in part (a) of FIG. 1 are prepared. As shown in part (b), a resin film 21 ′ is disposed on the wall surface of the female mold 31, and the male mold 30 and the female mold 31 are clamped. When the male mold 30 and the female mold 31 are clamped, a cavity 311 is formed between the two molds, and the resin injecting device 40 replaces the high-temperature resin 50 ′ with the male mold. 30 is injected into the cavity 311 from the injection hole 301 provided in 30. Part (b) of FIG. 1 shows a state in which the resin 50 ′ is filled in the cavity 311, and the injected resin 50 ′ cools and hardens as time passes. Here, in part (b) of FIG. 1, the resin film 21 ′ is arranged such that the surface on which the uneven pattern is provided faces the wall surface side of the female mold 31, while the male mold 30. An adhesive layer (not shown) that softens when heated and exhibits an adhesive effect is provided on the surface facing the side. By arranging the resin film 21 ′ in this way, the resin 50 ′ is injected by the heat of the resin 50 ′, and the adhesive layer of the resin film 21 ′ is softened and cured with time. “Resin film 21” adheres to “. When sufficient time has elapsed and the resin 50 'is completely cured, the male mold 30 and the female mold 31 are separated, and the cured resin 50' is taken out with the resin film 21 'attached. And the resin 50 'of the part which filled the injection hole 301 is removed, and as shown in Part (c) of FIG. 1, the surface of the housing body 20 made of the resin 50' is covered with the resin film 21 '. The housing 1 'is completed.

Since this method is a method of providing a concavo-convex pattern on the resin film 21 ′, a finer and more complicated concavo-convex pattern can be realized than the method of forming a concavo-convex pattern on the mold wall surface, and a more delicate tactile housing. The body can be obtained.
JP 09-94845 A Japanese Patent Application Laid-Open No. 2006-281592 JP 05-293849 A

  However, as in the method using the resin film 21 ′ in FIG. 1, in the method of covering the surface of the housing body with the sheet-like member having the uneven pattern on the surface of the housing body, any location on the housing body is covered. Since the tension applied to the sheet-like member varies slightly depending on the shape of the sheet-like member, when the sheet-like member coats the housing body, there is a difference in the expansion and contraction of the sheet-like member depending on the location. Doing so may result in patterns that detract from the aesthetic appearance. In particular, since the sheet-like member attached near the corner of the housing body is covered in an extended state, deformation of the concavo-convex pattern such as an increase in the interval of the concavo-convex is likely to occur, and in forming a clean concavo-convex pattern It becomes a problem. For this reason, with this method, it is not yet sufficient to realize a delicate and delicate tactile housing that a recent consumer likes.

  In view of the above circumstances, an object of the present invention is to provide a housing manufacturing method suitable for manufacturing a housing with a preferable tactile sensation.

In order to achieve the above object, the housing manufacturing method of the present invention comprises:
Arranging a mold material having an uneven pattern on the wall surface of the mold;
Injecting a molten material into the mold,
Curing the molten material to form a molded body;
Separating the mold material from the molded body;
It is characterized by having.

  The housing manufacturing method of the present invention can form a concavo-convex pattern on the surface of the housing by disposing a concavo-convex pattern mold material on the wall surface of the mold and separating the mold material from the molded body after the molten material is cured. it can. Since this mold material itself only serves as a concave / convex pattern mold, there is a difference in the degree of expansion / contraction of the sheet member depending on the coating location, as in the case of coating with a concave / convex pattern sheet member. Such a situation is unlikely to appear, and only a clean uneven pattern reflecting the uneven pattern of the mold material is formed on the surface of the casing. Therefore, with the housing manufacturing method of the present invention, it is possible to realize a delicate and delicate tactile housing that the recent consumer likes.

  In addition, by using the concavo-convex pattern mold material in this way, it is possible to form a concavo-convex pattern that is finer and more complex than when the concavo-convex pattern mold is formed directly on the wall surface of the mold. In addition, compared with the case where the uneven pattern mold is formed directly on the wall surface of the mold, the case manufacturing method of the present invention allows various uneven patterns to be formed on the surface of the casing using the same mold simply by replacing the mold material. Since it can be formed, it is convenient.

  Moreover, in the housing manufacturing method of the present invention, a form of “having a step of arranging a resin film on the mold material after the step of arranging the mold material on the wall surface” is a preferable mode.

  According to such a form, the resin film becomes the outer wall of the housing, and the uneven pattern of the mold material is formed on the resin film softened by the heat of the molten material. In general, when the resin film is in direct contact with the mold (see, for example, part (b) of FIG. 1), the resin film is directly rubbed against the mold when the molten material is injected. Wrinkles may come. As described above, the mold material is disposed between the resin film and the mold, so that the mold material serves as a buffer material when the molten material is injected, and the situation where the resin film is wrinkled is avoided. The

  Further, in the housing manufacturing method of the present invention, “the resin film has a printed layer on which visual information is printed and an adhesive layer overlapping the printed layer, and the step of arranging the mold material includes the bonding The form “is a step of arranging the resin film so that the layer side is opposite to the mold material” is a preferable form.

  According to such a form, the adhesiveness of the resin film in a housing | casing is strengthened because a resin film has an contact bonding layer. In addition, since the resin film has the print layer, the visual information can be easily provided on the surface of the housing, and the labor of applying a paint after molding to provide the visual information is saved.

  In the casing manufacturing method of the present invention, the casing manufacturing method of the present invention in which a resin film is disposed, and the casing manufacturing method of the present invention in which a resin film having a printed layer and an adhesive layer is disposed, Is a woven fabric having a concavo-convex pattern.

  According to such a form, an uneven | corrugated pattern can be formed in a housing | casing using the easily available material called a woven fabric.

  In the casing manufacturing method of the present invention, the casing manufacturing method of the present invention in which a resin film is disposed, and the casing manufacturing method of the present invention in which a resin film having a printed layer and an adhesive layer is disposed, Is a woven fabric having a concavo-convex pattern formed by at least one of an embossing process and a pressure press process.

  According to such a form, a concavo-convex pattern can be easily created by simply performing well-known processing such as embossing processing and pressure pressing processing on the woven fabric, and a housing with high production efficiency. A body manufacturing method is realized.

  Moreover, the housing manufacturing method of the present invention, the housing manufacturing method of the present invention in which a resin film is disposed, the housing manufacturing method of the present invention in which a resin film having a printed layer and an adhesive layer is disposed, and the mold material have an uneven pattern. The casing manufacturing method of the present invention which is a woven fabric, and the casing manufacturing method of the present invention in which the mold material is a woven fabric having a concavo-convex pattern formed by at least one of an embossing process and a pressure press process. In the above, “the mold material is coated with a release agent containing at least one of a fluorine compound and a silicon compound” is a preferable mode.

  According to such a form, it becomes easy to isolate | separate a mold material from a molded object.

  According to the present invention, a housing having a preferable tactile sensation is manufactured.

  Embodiments of the present invention will be described below.

  FIG. 2 is an external view showing a part of the casing of the mobile phone manufactured by using the embodiment of the casing manufacturing method of the present invention.

  A cellular phone casing 1 shown in the figure has a substantially box-like shape, and has a wood grain pattern on its surface. When this housing 1 is adopted as a mobile phone, the mobile phone will appear as if it were a mobile phone made of wood, and wood will have a consumer demand for mobile phones. A natural and friendly image can be given. Furthermore, the surface of the housing 1 is provided with an uneven pattern corresponding to the bark so that the user of the mobile phone can enjoy the feel of the bark when touching the mobile phone.

  FIG. 3 is a schematic cross-sectional view illustrating the configuration of the housing illustrated in FIG. 2.

  FIG. 3 shows a layer structure of a cross section near the surface of the housing 1 shown in FIG. As shown in this figure, the housing 1 is composed of a PC-ABS resin (for example, PC-ABS resin C7210A manufactured by Nippon GE Plastics Co., Ltd.) in which polycarbonate resin (PC) and acrylonitrile-butadiene-styrene resin (ABS) are mixed. An adhesive layer 11 formed by curing a thermoplastic adhesive is superimposed on the casing body 20 made of the above, and a printed layer 12 on which the above-described wood grain color and pattern are printed, and a casing. The outermost layer of the body 1 and the resin layer 13 made of a thermoplastic resin for protecting the casing surface are overlapped in this order. Here, materials of the adhesive layer 11, the printing layer 12, and the resin layer 13 will be described.

  The adhesive layer 11 is a layer obtained by curing an adhesive containing a thermoplastic nitrile rubber (for example, a nitrile rubber adhesive 540 manufactured by Cemedine Co., Ltd.). Since the softening of the adhesive can be controlled by heating by adding the thermoplastic nitrile rubber adhesive to the adhesive, the process of adhering the printing layer 12 and the resin layer 13 on the housing body 20 as will be described later Is easily performed by heating.

  As an adhesive, instead of the above nitrile rubber adhesive, acrylic resin adhesive, acrylic resin anaerobic adhesive, acrylic resin emulsion adhesive, α-olefin adhesive, urethane resin adhesive, urethane Resin solvent adhesive, urethane resin emulsion adhesive, ether cellulose, ethylene-vinyl acetate resin emulsion adhesive, ethylene-vinyl acetate resin hot melt adhesive, epoxy resin adhesive, epoxy resin emulsion adhesive, chloride Vinyl resin solvent adhesive, chloroprene rubber adhesive, vinyl chloride resin adhesive, vinyl acetate resin emulsion adhesive, cyanoacrylate adhesive, silicone adhesive, aqueous polymer-isocyanate adhesive, styrene-butadiene rubber Solution adhesive, nitrocellulose adhesive, reaction Hot melt adhesive, phenol resin adhesive, modified silicone adhesive, polyamide resin hot melt adhesive, polyimide adhesive, polyurethane resin hot melt adhesive, polyolefin resin hot melt adhesive, polyvinyl acetate resin solution adhesive Adhesive, polystyrene resin solvent adhesive, polyvinyl alcohol adhesive, polyvinyl pyrrolidone resin adhesive, polyvinyl butyral resin adhesive, polybenzimidazole adhesive, polymethacrylate resin solution adhesive, melamine resin adhesive Urea resin adhesives and resorcinol adhesives may be used.

  As described above, the printing layer 12 is a layer on which colors and patterns are printed. In addition to pigments, dyes, and inks, the printing layer 12 is a layer containing a phosphorescent material having a phosphorescent property or a fluorescent material having a fluorescent property. is there.

  The resin layer 13 is a thermoplastic layer made of polycarbonate resin (PC). The material of the resin layer 13 is a sheet made of polycarbonate resin (for example, Iupilon FE2000-M12: Mitsubishi Engineering Plastics Co., Ltd.), and the color and pattern of the grain are printed on the sheet, and further includes the nitrile rubber described above. By applying the adhesive, the resin film 21 including the resin layer 13, the print layer 12, and the resin layer 11 is produced.

  Moreover, as shown in this figure, the resin layer 13 is provided with unevenness on the surface, and the unevenness is an uneven pattern corresponding to the above-described bark. In the case 1, the surface of the case main body formed by injection molding of the above-described PC-ABS resin is still resin in the stage before the resin film 21 (but the resin film 21 is coated on the case main body). 3 is formed on the layer 13 so that the unevenness of FIG. 3 is not formed, and is flat. An uneven pattern is also formed on the resin layer 13 by using the formed woven fabric. Below, the manufacturing method of this housing | casing 1 is demonstrated.

  FIG. 4 is a flowchart showing a method for manufacturing the casing shown in FIGS. 1 and 2.

  First, a woven fabric made of polyester is prepared, and on the woven fabric, a shape that becomes the above-described concavo-convex pattern mold corresponding to the bark is formed by pressure pressing. And the mold release agent containing a fluorine compound is apply | coated to the surface in which the shape of this type | mold was formed (step S1). Hereinafter, the woven fabric in which the shape of the concavo-convex pattern is formed and the release agent is applied is referred to as a mold woven fabric.

  FIG. 5 is a schematic diagram showing a cross section of the mold woven fabric.

  As shown in FIG. 5, the mold woven fabric 22 has a configuration in which a release agent 221 covers the surface of a polyester woven fabric 220 on which a concavo-convex pattern is formed by pressure pressing. This woven fabric for a mold 22 is a mold for forming a concavo-convex pattern on the housing 1 as described below.

  FIG. 6 is a schematic diagram showing a manufacturing process of the housing shown in FIGS. 1 and 2.

  In FIG. 6, the same components as those in FIG. 1 are denoted by the same reference numerals, and redundant description thereof is omitted. 6, the male mold 30, the female mold 31, the mold fabric 22 illustrated in FIG. 5, the above-described resin film 21 including the adhesive layer 11, the print layer 12, and the resin layer 13, and the housing Each cross section of the resin injection | pouring apparatus 40 which inject | pours into a cavity the PC-ABS resin 50 which is a high-temperature molten state used as the material of the main body 20 is shown. Hereinafter, the manufacturing method of the housing | casing 1 is demonstrated using FIG.

  A male mold 30 and a female mold 31 having a cross-sectional shape shown in part (a) of FIG. 6, a mold woven fabric 22, a resin film 21 ′, and a resin injection device 40 are prepared, and the part of FIG. 6 is prepared. As shown in (b), a mold woven fabric 22 is disposed on the wall surface of the female mold 31, and a resin film 21 is disposed on the mold woven fabric 22, and the male mold 30 and the female mold The mold 31 is clamped (step S2 in FIG. 4). Here, in step S2, the surface on which the release layer 221 of the mold woven fabric 22 in FIG. 5 is provided (the surface on which the uneven pattern mold is formed) is the resin layer 13 of the resin film 21 ′ (at this time). The woven fabric 22 for the mold and the resin film 21 ′ so that the adhesive layer 11 of the resin film 21 ′ faces the male mold 30 side (that is, the inside of the cavity when the mold is clamped). Is placed. In the stage of part (a) in FIG. 6, the resin layer 13 of the resin film 21 ′ is not yet formed with the uneven pattern as shown in FIG. 3, and the surface of the resin layer 13 is in a flat state. ing.

  When the male mold 30 and the female mold 31 are clamped in step S2, a cavity 311 is formed between these two molds. In this state, the resin injection device 40 injects the high-temperature PC-ABS resin 50 into the cavity 311 from the injection hole 301 provided in the male mold 30. Part (b) of FIG. 1 shows that the cavity 311 is filled with the PC-ABS resin 50, and the injected PC-ABS resin 50 cools and hardens over time (FIG. 4). Step S3). On the other hand, the adhesive layer 11 of the resin film 21 is softened by the heat of the PC-ABS resin 50 when the PC-ABS resin 50 is injected, and the resin film 21 is applied to the PC-ABS resin 50 that is cured with the passage of time. Adhere to. In addition, the resin layer 13 of the resin film 21 is also softened by the heat of the PC-ABS resin 50, and a concavo-convex pattern is formed on the surface of the resin layer 13 in contact with the woven fabric for mold 22. When time elapses and the PC-ABS resin 50 is completely cured, the male mold 30 and the female mold 31 are separated, and the mold woven fabric 22 and the resin film 21 remain attached. The cured PC-ABS resin 50 is taken out (step S4 in FIG. 4). Then, the portion of the PC-ABS resin 50 that has filled the injection hole 301 is removed, and the shape of the PC-ABS resin 50 is adjusted to the shape shown in part (c) of FIG. Then, as shown in part (d) of FIG. 6, the mold woven fabric 22 is peeled off from the resin film 21 (step S5 of FIG. 4). When the woven fabric for mold 22 is completely peeled off, as shown in part (e) of FIG. 6, the casing having a configuration in which the surface of the casing main body 20 made of the PC-ABS resin 50 is covered with the resin film 21. 1 is completed.

  Next, a case where a concavo-convex pattern different from the concavo-convex pattern of the wood grain pattern in FIG. 1 is formed on the surface will be briefly described.

  FIG. 7 is an external view of a housing having an uneven pattern different from that shown in FIG.

  The casing 100 shown in FIG. 7 is also a mobile phone casing similar to the casing 1 shown in FIG. 2, but has a concave and convex pattern and a color different from those shown in FIG. On the surface of the housing 100 shown in FIG. 7, fine irregularities are formed at equal intervals, and when the mobile phone consumer grasps the mobile phone, a moderate roughness is given to the consumer. It is devised to be able to. The casing 100 shown in FIG. 7 has a configuration in which an adhesive layer, a printing layer, and a resin layer are superimposed on a casing body 20 made of PC-ABS resin, similar to the configuration of the casing 1 shown in FIG. I have. The printed layer of the housing 100 illustrated in FIG. 7 is a layer formed by printing colors on a resin layer with a single color ink. In addition, as the adhesive layer of the housing 100 shown in FIG. 7, an adhesive layer formed by applying an adhesive containing acrylonitrile-butadiene-styrene resin (ABS), which is a kind of thermoplastic resin, is employed. As the resin layer of the housing 100 shown in FIG. 7, a layer made of acrylic resin (PMMA) which is a kind of thermoplastic resin is employed. Except for the difference in materials, the configuration itself in which the adhesive layer, the printing layer, and the resin layer overlap on the casing body 20 is the same as the configuration of the casing 1 shown in FIG. The illustration is omitted here for reference. In addition, as a resin film of the housing | casing 100 shown in FIG. 7, the milentin film by Shin-Etsu Polymer Co., Ltd. can be employ | adopted, for example.

  The concavo-convex pattern provided on the resin layer of the casing 100 shown in FIG. 7 is also formed with a concavo-convex pattern on the polyester woven fabric in the same manner as the concavo-convex pattern provided on the resin layer 13 of the casing 1 shown in FIG. Further, it is formed using a mold woven fabric created by applying a release agent. However, in the mold woven fabric in the casing 100 shown in FIG. 7, the uneven pattern mold shown in FIG. 7 is applied by embossing and on the surface on which the shape of this mold is formed. The only difference from the mold fabric 22 shown in FIG. 5 is that the release agent is a release agent containing a silicon compound.

  The manufacturing method of the casing 100 shown in FIG. 7 is that the uneven pattern mold shown in FIG. 7 is formed by embossing in step S1 of FIG. 4 and a release agent containing a silicon compound is applied. Except for the point that a different resin film is used, it is the same as the manufacturing method shown in the flowchart of FIG. That is, when manufacturing the case 100 shown in FIG. 7, the manufacturing process shown in FIG. 6 is performed except that a different resin film is used. Therefore, the duplicate description about these is omitted.

  In the manufacturing method of the casing 1 shown in FIG. 1 and the casing 100 shown in FIG. 7 as described above, the mold woven fabric is arranged on the wall surface of the female mold 31 and the mold woven fabric is melted. By separating the PC-ABS resin 50 from the molded product after curing, an uneven pattern can be formed on the surface of the housing.

  In general, in a method in which the housing body is covered with a resin film having a concavo-convex pattern and the resin film is used as an outer wall of the housing to provide the concavo-convex pattern on the housing, when the resin film covers the housing body, The expansion and contraction of the resin film varies depending on the location, and it may overlap with the concavo-convex pattern, and may appear even in a pattern that impairs the appearance of the appearance, such as a striped pattern. In particular, since the resin film that is attached near the corners of the casing body is covered in an extended state, it is easy for deformation of the uneven pattern such that the interval between the unevenness is widened, which is a problem in forming a clean uneven pattern. It becomes.

  In the manufacturing method of the casing 1 shown in FIG. 1 and the casing 100 shown in FIG. 7 described above, the woven fabric for a mold only serves as a pattern of the uneven pattern. Such a situation is unlikely to appear, and only a clean concavo-convex pattern reflecting the concavo-convex pattern of the mold woven fabric is formed on the surface of the casing. This also applies to the uneven pattern near the corners of the housing. For example, there is almost no deformation of the uneven pattern corresponding to the wood surface in the vicinity of the corners of the housing 1 in FIG. A concavo-convex pattern is formed in the same manner. Therefore, in the case manufacturing method of FIG. 4, it becomes possible to realize a case with a delicate and delicate tactile sensation as preferred by recent consumers.

  Further, by using the woven fabric for a mold in this way, it is possible to form a finer and more complicated concavo-convex pattern than when the concavo-convex pattern mold is directly formed on the wall surface of the mold. In addition, compared with the case where the uneven pattern mold is formed directly on the wall surface of the mold, the case manufacturing method of the present invention allows various uneven patterns to be formed on the surface of the casing using the same mold simply by replacing the mold material. Since it can be formed, it is convenient.

  In general, when the resin film is in direct contact with the mold (see, for example, part (b) of FIG. 1), the resin film is directly rubbed against the mold when the molten resin is injected. Wrinkles may occur on the resin film. In the casing manufacturing method described above, the mold woven fabric is disposed between the resin film and the female mold 31 as shown in part (b) of FIG. When the ABS resin 50 is injected, the woven fabric for molds serves as a cushioning material, and a situation in which the resin film is wrinkled is avoided.

  In addition, in the resin film in the casing manufacturing method described above, the adhesiveness of the resin film in the casing is enhanced by having the adhesive layer, and the colors and patterns on the casing surface by having the printed layer. Can be easily provided, and the labor of applying the paint after molding is saved.

  Further, in the case manufacturing method described above, a concavo-convex pattern mold material can be easily obtained by simply applying a conventionally well-known process such as a pressure press process or an embossing process to a readily available material such as a woven fabric. This is a housing manufacturing method with high production efficiency. Further, by applying a release agent containing a fluorine compound or a silicon compound to the surface of the mold woven fabric having a concavo-convex pattern, the mold woven fabric is peeled off (see part (d) of FIG. 6). It has become easy.

  In the above description, a polyester woven fabric was used as the woven material. However, the woven material used in the present invention is a synthetic fiber other than the polyester woven fabric (for example, nylon, acrylic, Polyvinyl chloride and polyurethane). In addition to synthetic fibers, plant fibers (for example, cotton and hemp), animal fibers (for example, silk, wool, alpaca, Angola, cashmere, and mohair), regenerated fibers of chemical fibers (for example, rayon, cupra, and so on) Polynosic), and semi-synthetic fibers (eg, acetate, triacetate, and promix) can also be employed. A woven fabric made of synthetic fibers is most preferable from the viewpoint of heat resistance and strength, and a preferable mold material that can be used repeatedly is realized by using synthetic fibers. Further, the present invention is not particularly limited to the details of the weaving method of the woven fabric using these fibers.

  In the above description, the resin layer is a layer made of a polycarbonate resin or an acrylic resin as a material. However, in the present invention, a UV cationic or acrylic hard coat, plating, or vapor deposition is applied to these. A resin layer that has been subjected to such surface treatment may be employed. By doing so, the hardness of the resin layer is improved.

It is the schematic diagram showing the manufacturing process in the manufacturing method of the housing | casing devised to give a desired tactile sense by affixing the resin film with an uneven | corrugated pattern on the surface. It is an external view showing a part of a casing of a mobile phone manufactured using an embodiment of the casing manufacturing method of the present invention. FIG. 3 is a schematic cross-sectional view illustrating a configuration of a housing illustrated in FIG. 2. It is a flowchart showing the manufacturing method of the housing | casing shown in FIG. 1 and FIG. It is the schematic diagram showing the cross section of the woven fabric for a type | mold. FIG. 3 is a schematic diagram illustrating a manufacturing process of the housing illustrated in FIGS. 1 and 2. It is an external view of the housing | casing which has an uneven | corrugated pattern different from the housing | casing shown in FIG.

Explanation of symbols

1, 1 ', 100 Case 11 Adhesive layer 12 Print layer 13 Resin layer 20 Case body 21, 21' Resin film 22 Woven fabric 220 Woven fabric 221 Release layer 30 Male mold 301 Injection hole 31 Female mold Mold 311 Cavity 40 Resin injection device 41 Screw 50 PC-ABS resin 50 ′ Resin

Claims (2)

Placing a woven fabric having a concavo-convex pattern formed by at least one of embossing treatment and pressure pressing treatment on a wall surface of the mold and coated with a release agent containing a fluorine compound; ,
Injecting a molten material into the mold;
Curing the molten material to form a molded body;
Separating the woven fabric from the molded body;
A housing manufacturing method characterized by comprising:   The housing manufacturing method according to claim 1, further comprising a step of placing a resin film on the woven fabric after the step of arranging the woven fabric on the wall surface.

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