KR100480318B1 - Laminated Shaped Article and Method For Producing the Same - Google Patents

Abstract

The laminated molded body has a soft layer 2, a first soft plastic layer 3, and a second hard plastic layer 4. The soft layer 2 has two sides, and a second hard plastic layer 3 is bonded to one side of the soft layer, and a second hard plastic layer 4 is peeled off to the other side of the soft layer. It is possibly attached.

Description

Laminated Shaped Article and Method For Producing the Same

The present invention relates to a laminated shaped article and a method of manufacturing the same. The laminated molded body includes a sealing material incorporated into an electronic device, a touch panel surface material of a display-related product, or various anti-slip materials.

Improved or slipped hand feel by covering the outer surface of recent injection molded articles such as keyboards, palm rests, mouse pointers, etc. of personal computers with soft plastic layers. It is desired to improve the prevention effect.

In addition, injection moldings such as control panels and keyboards of telephone products are provided with a window hole so that the switch operation can be performed by covering the window hole with a plastic film and pushing the plastic film with a finger. will be. Also in this case, it is desired to smoothly improve the feel of the hand where the finger touches or to improve the anti-slip effect.

Specifically, for example, Japanese Patent Application Laid-Open No. 4-215219 discloses a membrane switch of a thin switch used in an electronic device or the like, as shown in FIGS. 8 (a) and 8 (b). Is disclosed. In this membrane switch, the electrode 31a is pattern-formed by the screen printing etc. with respect to the upper sheet 32a of insulating resin, and the electrode 31b with respect to the lower sheet 32b of insulating resin, respectively. An insulating sheet 33 is provided between the electrode 31a and the lower sheet 32b. Holes 34 are partitioned between adjacent insulating sheets 33.

As shown in Fig. 8B, when the portion of the upper sheet 32a corresponding to the hole 34 is pushed in the direction indicated by the arrow, the connection state of the switch is preserved and maintained by contacting the positive electrodes 31a and 31b. When the pressing force to the part of the upper sheet 32a is released, the upper sheet 32a returns to its original position by its rigidity and the switch is disconnected. However, in the above configuration, there is no tactile click when the upper sheet 32a is pressed by a finger. Therefore, it cannot be confirmed whether the positive electrodes 31a and 31b are in contact with each other.

As shown in Fig. 9, Japanese Patent Laid-Open No. 7-52240 discloses a membrane switch having an embossed seat 35 made of an embossed polyester resin. The embossed sheet 35 is provided with a plurality of convex portions 35a (only one shown). An insulating sheet 33 is sandwiched between the embossed sheet 35 and the lower sheet 32b. The electrode 31a is provided inside the convex portion 35a. The surface sheet 37 with flexibility is provided at a position opposite to the lower sheet 32b via the insulating sheet 33, the embossed sheet 35, and the insulating layer 36. As shown in FIG.

In the case of the membrane switch of Fig. 9, a feeling of click can be obtained and it can be sensed whether the switch is on or off. However, since the pressing part of the membrane switch is covered with the flat surface sheet 37, an incorrect pressing may occur when operated by the blind touch method. Moreover, in the case of the membrane switch of the type which peeled off the surface sheet and exposed the convex part 35a, since the emboss sheet is made of polyester resin (made of hard resin), the hand feels hard and slippery. Moreover, since the electrode 31a is formed in the inner side of the convex part 35a, manufacture of a switch becomes complicated.

Disclosure of the Invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a laminated injection molded product which can be easily manufactured and at the same time suppresses slippage of the surface and prevents an erroneous pressing of a switch, and a manufacturing method thereof.

In order to achieve the above object, the present invention provides a laminated molded body having a soft layer and first and second hard plastic layers. The soft layer has two sides. The first hard plastic layer is bonded to one side of the soft layer. The second hard plastic layer is attached to the other side of the soft layer so as to be peelable.

In the laminated molded product of another aspect of the present invention, a hard plastic layer is adhered to one side of the soft layer, and a film is laminated on the other side to be peelable. The film is a film made of hard plastic. The film has a matte coated surface, and the matte coated surface is pressed against the other side of the soft layer, so that the film is releasably laminated to the soft layer.

The laminated molded article of another embodiment of the present invention has an injection molded resin layer and a laminated film laminated on the injection molded resin layer. In the laminated film, the soft plastic layer is disposed on the outside while the laminated film having the soft plastic layer and the hard plastic layer bonded to each other is laminated on the injection molding resin layer.

According to the manufacturing method of the laminated molded object of this invention, a laminated film is formed by first attaching a hard plastic layer to one side of a soft plastic layer, and simultaneously peeling a protective layer on the other side of the soft plastic layer. Thereafter, the protective layer of the laminated film is set toward the mold surface of the injection molding die. And an injection resin layer is formed on a hard plastic layer by inject | molding a molding material toward a hard plastic layer.

Brief description of the drawings

Fig. 1A is a partially enlarged sectional view of a laminated sheet in a first embodiment of the present invention.

Figure 1 (b) is a partially broken perspective view of the laminated sheet of Figure 1 (a).

2 is a partially enlarged cross-sectional view of FIG.

3 is a partially enlarged cross-sectional view of the membrane switch sheet.

4 is an enlarged cross-sectional view of a membrane switch.

Fig. 5 is a sectional view of the laminated sheet in the second embodiment.

6 is a cross-sectional view for describing a method of manufacturing the laminated sheet of FIG. 5.

7 is a partially enlarged cross-sectional view of the laminated sheet in the third embodiment.

Fig. 8A is a partially enlarged cross sectional view of a conventional membrane switch.

Fig. 8B is a partially enlarged sectional view of the state in which the switch of Fig. 8A is pressed.

9 is a partially enlarged cross-sectional view of another conventional membrane switch.

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, 1st Embodiment which actualized this invention is described based on FIGS. As shown in Figs. 1A and 1B, the laminated sheet 1 having a rectangular shape has a protective film 4 composed of a soft layer 2, a first hard plastic layer 3, and a second hard plastic. The first hard plastic layer 3 is strongly adhered to the lower surface of the soft layer 2 in FIG. The protective film 4 is laminated on the upper surface of the soft layer 2 in Fig. 1 (a) so as to be peeled off. A plurality of swollen portions 5 for switch clicks are arranged on a matrix formed on the laminated sheet 1 at predetermined intervals. The bulging part 5 is formed in substantially the same size as the hole 9a provided in the position corresponding to the electrodes 8a and 10a of the membrane switch 7 mentioned later.

The first hard plastic layer 3 is formed of a biaxially oriented polyethylene terephthalate film (polyethylene terephthalate film, biaxially oriented PET film). Soft layer 2 is formed of a crosslinked silicone rubber composition. Protective film 4 is formed of a biaxially stretched PET film which has been coated with a matte coating. The "matte coating" treatment is also referred to as a matte treatment, in which small irregularities are formed on the surface of the film or a layer containing small particles is applied.

Next, the manufacturing method of the laminated sheet 1 is demonstrated.

First, an adhesion process is performed as needed on the base film comprised from the biaxially stretched PET film of predetermined thickness (for example, 12 micrometers). Subsequently, the uncrosslinked silicone rubber composition is adhered onto the base film. That is, the thickness of the silicone rubber composition is preferably 30 µm to 1500 µm. As the adhesion treatment, for example, a primer layer is formed of a polyurethane resin or an amorphous polyester resin. The thermosetting thin film layer containing the high affinity silicone resin with respect to the undercoat layer below is formed. As silicone resin, condensation type silicone resin is mentioned, for example.

As an uncrosslinked silicone rubber composition, for example, an electron beam crosslinkable or electron beam curable silicone elastomer capable of crosslinking silicone rubber by irradiation with an electron beam is used. The material of the silicone elastomer is mainly polydimethylsiloxane including a vinyl group. As a material of other silicone elastomer, a part of the methyl group of polydimethylsiloxane may be substituted by the phenyl group or the trifluoropropyl group.

In addition, as shown in FIG. 2, the mat coat layer 4a is formed on the surface of the protective film 4 having a thickness of approximately 20 μm. The laminated body 6 which consists of a base film, a silicone rubber composition, and the protective film 4 is formed by crimping | bonding the protective film 4 with respect to a silicone rubber composition, making the mat coat layer 4a contact with a silicone rubber composition.

Next, when the electron beam is irradiated with respect to the said laminated body 6, a silicone rubber composition is bridge | crosslinked and a silicone rubber composition turns into the soft layer 2. The mat coat layer 4a is disposed between the soft layer 2 and the protective film 4. The irradiation dose of the electron beam is preferably 20 kGy to 150 kGy. In addition, the laminated body 6 is pressed to a predetermined shape by the pressing machine, and the laminated sheet 1 as shown in FIG. 1 is formed.

In addition, a membrane switch using the laminated sheet 1 of FIG. 1 and a manufacturing method thereof will be described.

As shown in FIG. 4, the membrane switch 7 includes a body portion 11. The main body 11 has a spacer 9 and an insulating sheet 10 composed of a substrate (printed substrate) 8 and an insulating material. A plurality of electrodes 8a are arranged on the substrate 8 in a matrix at predetermined intervals. The spacer 9 has a hole 9a corresponding to each electrode 8a, in which the electrode 10a constituting the switch together with the electrode 8a and the electrode 8a is accommodated. And the laminated body which consists of the 1st hard plastic layer 3 and the soft layer 2 from which the protective film 4 was peeled off from the lamination sheet 1 is laminated | stacked on the main-body part 11. The bulging part 5 of a laminated body is arrange | positioned above the main-body part 11 in the position corresponding to each hole 9a. The soft layer 2 is located on the outer side of the bulge 5, and the hard plastic layer 3 is located on the inner side of the bulge 5.

The laminated sheet 1 is laminated to the main body portion 11 by, for example, drilling the first hard plastic layer 3 with respect to the insulating sheet 10 of the main body portion 11 after drilling into a predetermined shape according to the key arrangement of the desk calculator.

Thereafter, the protective film 4 is peeled from the laminated sheet 1 and the soft layer 2, that is, the surface of the crosslinked silicone rubber is exposed. When the protective film 4 is peeled off, small irregularities on the surface of the mat coat layer 4a are transferred to the outer side of the soft layer 2 of the membrane switch sheet 12. Therefore, the mat surface with small unevenness | corrugation appears on the surface of the soft layer 2. As shown in FIG.

When the bulge 5 of the membrane switch 7 was pressed with a fingertip, the bulge 5 dents downward and a pressure force is transmitted to the insulation sheet 10, so that the insulation sheet 10 breaks toward the base 8. And the electrode 10a provided in the insulating sheet 10 is preserve | saved and hold | maintained in contact with the electrode 8a formed in the base 8, and a switch becomes a conduction state (on state). When the pressure of the bulge portion 5 is released, the first hard plastic layer 3 returns to its original state by its rigidity, and the switch is turned off.

This embodiment has the following effects.

Compared to the case where the membrane switch sheet 12 is formed of only a hard PET film, the membrane switch sheet 12 of the present embodiment has a soft touch when the finger touches the bulge 5 of the membrane switch sheet 12 and at the same time suppresses surface slippage. This can prevent the switch from being pressed incorrectly.

Soft layer 2 is formed of crosslinked silicone rubber. Therefore, even if the membrane switch sheet 12 is stored or used for a long time at a relatively high temperature, deterioration is difficult and as a result, durability is improved.

Since the silicone rubber composition is crosslinked by the electron beam, heat is not transmitted to the first hard plastic layer 3 and the protective film 4. Therefore, the first hard plastic layer 3 and the protective film 4 do not deteriorate by heat.

The soft layer 2 made of silicone rubber reinforces the flexibility of the hard plastic layer 3. Therefore, compared with the case where only the hard plastic layer like PET film is formed, the fall of flexibility is suppressed by repeated press and release with respect to the bulging part 5, and durability is improved.

The protective film 4 protects the soft layer 2 when the laminated sheet 1 is press formed. In addition, the soft layer 2 is reliably protected by the protective film 4 until the lamination sheet 1 is provided in the membrane switch 7. Therefore, the soft layer 2 does not have a flaw.

When pressing the swelling portion 5, it is difficult to slip due to small irregularities formed on the surface of the soft layer 2.

By peeling off the protective film 4 which was matt-processed, small unevenness | corrugation is transferred to the surface of the soft layer 2. Therefore, small irregularities can be easily formed on the surface of the soft layer 2.

Unlike the membrane switch using the emboss sheet 35 shown in Fig. 9, the membrane switch 7 of the present embodiment can be easily manufactured without the need of forming an electrode in the portion of the laminated sheet 1.

By laminating the membrane switch 12 of the present embodiment on a membrane switch having a conventional structure without a click feeling as shown in Figs. 8 (a) and 8 (b), a membrane switch having a click feeling can be easily manufactured.

Next, a second embodiment of the present invention will be described.

FIG. 5 is a front sectional view showing a laminated molded body in the second embodiment, and FIG. 6 is a front sectional view for explaining the manufacturing method of the laminated molded body shown in FIG.

In the laminated molded body shown in Fig. 5, a hard plastic layer 22 is provided between the injection molded resin layer 44 and the soft plastic layer 21. The hard plastic layer 22 is strongly adhered to the injection molded resin layer 44, and the soft plastic layer 21 is disposed on the surface of the laminated molded body. The laminated film 45 is comprised by the hard plastic layer 22 and the soft plastic layer 21. As shown in FIG.

In the present embodiment, the injection molded resin layer 44 includes a high-impact polystyrene resin, an acrylonitrile-butadiene-styrene copolymer resin, and an acrylonitrile-styrene copolymer. It is obtained by injection molding a resin such as an acrylonitrile-styrene copolymer resin.

Silicone rubber is most appropriately used for the rigid plastic layer 21 having rigidity. The silicone rubber is preferably an electron beam crosslinkable silicone rubber, a milable silicone rubber, a liquid curable silicone rubber, or the like comprising a composition containing polydimethylsiloxane as a main component.

Polydimethylsiloxane has dimethylsiloxane as the main monomer component, but other monomer components include one or two methyl groups (one to three at the end) of vinyl group, phenyl group, (long chain) alkyl group, fluoroalkyl group, and hydroxyl group. The monomer substituted by the actual group (= a cyranol group), an amino group, a glycidyl group, an alkoxy group, chlorine, hydrogen, etc. can be applied.

Fillers, vulcanizing agents, property-improving agents in addition to polydimethylsiloxane to assist various properties of silicones, for example processability, heat resistance, mechanical properties, adhesion, flame retardancy or reliability. You may add components, such as these. As the filler, for example, silica, diatomaceous earth, quartz powder, calcium carbonate, silicon resin, carbon and the like are used. As the vulcanizing agent, organic peroxides, modified silanes, modified siloxanes, alkoxysilanes, platinum compounds and the like are used. Acetylene alcohol, cyclic methylvinylsiloxane, etc. are used as reaction inhibitor which adjusts sclerosis | hardenability.

Characteristics improvers include processing aids, heat improvers, vulcanization anti-reflective agents, flame retardant and adhesive enhancers. As processing aids, low viscosity silicone oils, silicone resins and silane compounds containing terminal silanol groups or terminal alkoxy groups are used. As the heat resistance improver, metal oxides such as iron and nickel and metal organic acids are used. Examples of the vulcanization anti-backing agents include acid acceptors such as calcium oxide and barium oxide. Flame retardant imparting agents include platinum compounds, iron oxides, titanium oxides and carbon. As the adhesion promoter, a silane coupling agent is used.

The thickness of the soft plastic layer 21 is preferably 30 to 500 m. There is an anti-slip effect at the 30 μm end, but the softness is slightly insufficient, and the cost is increased when it exceeds 500 μm.

As the hard plastic layer 22, a biaxially oriented film such as polyethylene terephthalate (PET), polypropylene (PP), or polystyrene (PS) is used. Among these, PET is most preferable as a material of the hard plastic layer 22 because the biaxially stretched polyethylene terephthalate film has a high strength, a high rigidity, and a rich feeling of click and restoring force when used in a switch.

As shown in Fig. 6, the injection molding die 4 used for molding the laminated molded product has a first molded die 41 and a second molded die 46. The hole part 42 for forming the cavity part 43 in the injection molding resin layer 44 is designed between the 1st shaping | molding die 41 and the 2nd shaping | molding die 46. FIG.

Next, the manufacturing method of the laminated sheet which comprises a part of laminated molded object is demonstrated. First, a primary coating agent containing a polyurethane resin or an amorphous polyether resin as a main component is applied and dried on a biaxially stretched PET film having a predetermined thickness, for example, 12 m in thickness. Uncrosslinked silicone resin is laminated on the dry film. And the protective layer 23 which consists of a biaxially stretched PET film of thickness 12 micrometers is crimped | bonded with respect to the surface of silicone resin using the pressure roll not shown in figure. At this time, the silicone resin is rolled so that the thickness of the silicone resin is 200 μm, for example. Thereafter, the silicone resin is irradiated with an electron beam to crosslink and cure the silicone resin to produce silicone rubber. As a result, a laminated film 20 having a soft plastic layer 21 made of silicone rubber is formed.

The protective layer 23 is peelable from the soft plastic layer 21. The preferred peel strength ranges from the soft plastic layer 21 with a peeling rate of 300 mm / min, perpendicular to the soft plastic layer 21 by a T-type peeling test in a state in which the soft plastic layer 21 is fixed at a temperature of 20 ° C. It is 30 to 500 gf / 50 mm when peeled off.

The protective layer 23 is coated with a release agent such as silicone or fluorine on the surface of a biaxially oriented film made of hard plastic such as polyethylene terephthalate, polypropylene, polystyrene, or semi-hard plastic such as polyethylene or ethylene vinyl acetate copolymer or paper. And the like can be used. Preferably, a biaxially stretched PET film is used to obtain a suitable peel strength for the soft plastic layer 21.

Then, the laminated film 20 is press-molded to form the required iron 201 corresponding to the switch. At this time, since the soft plastic layer 21 is covered by the protective layer 23, the soft plastic layer 21 does not have a flaw.

Next, in a state where the protective layer 23 of the laminated film 20 is in contact with the mold surface 40 of the injection molding die 4, the laminated film 20 is disposed in the injection molding die 4 and the opening of the second molding die 46 is closed by the first molding die 41. . And the acrylonitrile-styrene resin melted by the extruder which is not shown in figure is injected toward the hard plastic layer 22 via the injection hole 411.

The acrylonitrile-styrene resin is injected between the first mold 41 and the hard plastic layer 22 and then cooled. As a result, the acrylonitrile-styrene resin is strongly fused and hardened to the hard plastic layer 22 to form an injection molded resin layer 44. As a result, the laminated injection molded body shown in Fig. 5 is obtained. Finally, the protective layer 23 of the laminated sheet is peeled off to expose the soft plastic layer 21.

In the injection molded resin layer 44, a cavity 43 corresponding to the hole 42 is formed. Therefore, the required convex portion 201 of the laminated film 20 can be pressed or displayed by photoelectricity. In addition, since the cavity 43 is sealed by the hard plastic layer 22 and the injection molded resin layer 44, water or dust does not enter the cavity 43. Therefore, for example, it can be effectively used for the keyboard of a computer or the operation panel of home appliances. In addition, this embodiment has almost the same effects as the embodiment shown in Figs.

7 shows the film key 50 in the third embodiment. The film key 50 has an injection molded resin layer 52, and a plurality of protrusions 53 are formed in the resin layer 52. On the surface of the injection molded resin layer 52, a laminated film for strongly bonding the soft plastic layer 21 and the hard plastic 22 is laminated, and the soft plastic layer 21 is disposed on the surface side. A plurality of button portions 51 are formed by the plurality of protrusions 53 and the laminated film covering them. The switch main body which is not shown in figure is arrange | positioned under each button part 51, for example, is used for the key of a mobile telephone, etc. Since the back surface of each button part 51 is reinforced by the injection molding resin layer 52, the button part 51 can be formed to a predetermined height without deformation. Therefore, the feeling of pressing is sure and it is possible to reliably push the button part 51.

This embodiment is not limited to the above, but may be embodied as follows, for example.

The crosslinking method of silicone rubber is not limited to the method using an electron beam, but may be another method. For example, crosslinking is performed at about 150 ° C. in an addition system to obtain a silicone elastomer. In the addition system, a SiH group to a carbon double bond is added by a hydrosilylation reaction to perform crosslinking. As the silicone elastomer, for example, polysiloxane containing two or more vinyl groups is used as a gas polymer, a siloxane oligomer having three or more SiH groups is used as a crosslinking agent, and a platinum compound is used for the catalyst.

As a protective film, a stretched polypropylene film (OPP) is preferable. However, since OPP alone shrinks during crosslinking, PET / OPP laminate film is used. The laminated film which stuck the biaxially stretched PET film to the OPP to which the surface mat process was applied is used as a protective film. Then, as shown in FIG. 1, the soft layer 2 and the silicone rubber composition are heat-cured while compressing. In this case, an electron beam irradiation device for crosslinking the silicone rubber is unnecessary.

You may use the lamination film which adhered the biaxially stretched PET film to the commercially mated OPP as the protective film 4.

The laminated sheet not having the protective film 4, that is, the laminated sheet of two layers composed of the hard plastic layer 3 and the soft layer 2 may be press molded and a membrane switch sheet 12 having a bulge portion 5 may be formed. In this case, the protective film 4 is unnecessary, and the number of manufacturing processes is reduced, thereby reducing the cost.

You can also use a protective film that is not matted. In this case, as compared with the inflation portion 5 shown in Fig. 4, the protruding portion is more slippery and comfortable to the touch during the pressing operation of the switch.

The silicone rubber layer may be partially crosslinked to such an extent that flow is hard to occur during molding of the bulge portion 5, and may be completely crosslinked after molding. In this case, the flexible reinforcement effect of the rigid plastic layer 3 according to the silicone rubber layer is improved.

As a material of the soft layer 2, urethane rubber may be used, for example.

As the hard plastic layer 3, a material other than a PET film, for example, a polyethylene naphthalate film, a polyimide film, a polycarbonate film, or the like may be used. Moreover, the lamination film of a crystalline polyester film and another film may be used.

The arrangement of the bulge portions 5 may be appropriately changed in accordance with the arrangement of the switches of the electrical appliances to be used. The shape of the bulge part 5 is not limited to a circular shape, You may change into appropriate shapes, such as an ellipse, a triangle, and a square. In addition, the size of the expansion part 5 may be changed suitably according to a design and an objective.

The present invention may be applied to a membrane switch having an electrode on the inner side of the hard plastic layer 3.

Claims (12)

The soft layer 2 having two sides and A first hard plastic layer 3 bonded to one surface of the soft layer 2 and A laminated molded body comprising a second hard plastic layer (4) that can be detachably attached to another surface of the soft layer (2). 2. The laminate molded product according to claim 1, wherein the laminated molded body has a swelling portion (5), and a soft layer (2) is disposed outside the swelling portion (5), and a first hard plastic layer on the inner side of the swelling portion (5). (3), the laminated molded body characterized by the above-mentioned. Two layers of soft layer (2) A hard plastic layer 3 adhered to one surface of the soft layer 2 and It is a film of hard plastic (4), the film (4) has a matte coated surface (4a), the matte coated surface (4a) with respect to the other side of the soft layer (2) The laminated molded object formed by laminating | stacking the film 4 with respect to the soft layer 2 so that peeling is carried out by crimping | bonding. 4. The laminate molded product according to claim 3, wherein the laminated molded body has a swelling portion 5, wherein a soft layer 2 is disposed outside the swelling portion 5, and a hard plastic layer 3 is placed on the inner side of the swelling portion 5. Laminated molded body, characterized in that arranged. The laminated molded body according to claim 3 or 4, wherein the soft layer (2) is made of silicone rubber to be crosslinked. The laminated molded body according to claim 3 or 4, wherein a membrane switch sheet (12) having the soft layer (2) disposed outward is formed by peeling the film (4) from the laminated molded body. Membrane switch (7), characterized in that it has the membrane switchsheet (12) of claim 6. The injection molding resin layer 44 Having a laminated film 20 laminated on the injection molded resin layer 44, The laminated film 20 has a soft plastic layer 21 and a hard plastic layer 22 adhered to each other, and the laminated plastic film 20 is laminated on the injection molding resin layer 44. It is arrange | positioned outward, The laminated molded object characterized by the above-mentioned. The laminated molded product according to claim 8, wherein the laminated molded product has a button portion (51). Forming the laminated film 20 by adhering the hard plastic layer 22 to one side of the soft plastic layer 21 and at the same time peeling off the protective layer 23 on the other side of the soft plastic layer 21. fair, Setting the protective layer of the laminated film 20 toward the mold surface 40 of the injection molding die 4, and A method of manufacturing a laminated molded body comprising the step of forming an injection resin layer (44) on the hard plastic layer (22) by injecting a molding material toward the hard plastic layer (22). The laminated molded body according to claim 5, wherein the membrane switch sheet (12) having the soft layer (2) disposed outward is formed by peeling the film (4) from the laminated molded body. Membrane switch (7), characterized in that it has a membrane switch sheet (12) of claim 11.