JP2013035258A - Soft touch film molding for film insert molding for manufacturing resin molded article including soft touch surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soft touch film molding for film insert molding which provides a surface of a resin molded article with moderate soft touch property, gripping property and handling property, and excelling in moldability.SOLUTION: This soft touch film molding includes a film base material, and a silicone rubber layer formed on the film base material, wherein texture and operability of a resin molded article are improved by controlling hardness, surface roughness and the like of the silicone rubber layer, specifically Shore A hardness of the silicone rubber layer is in the range of 30-90, and center line surface roughness Ra of the silicone rubber layer is in the range of 0.1-5.0 μm. A method of producing the same is also provided.

Description

  The present invention relates to a film that forms a part of a skin material touched by a human hand in a molded product such as a case of a mobile phone, a notebook computer, a portable game machine, a small LCD monitor, a portable audio device, or a protective case, a keypad The present invention relates to a film molded body for insert molding, and in particular, to a soft touch film molded body for film insert molding having excellent touch feeling such as grip property and handling property.

  Conventionally, a hard coat layer has been formed on various molded products made of resin or the like in order to protect the surface thereof. As a method of manufacturing a molded product with a hard coat layer formed on the surface, a hard coat film with a hard coat layer or print layer formed on a film substrate and a molding material such as a resin are integrally molded with a mold. There is film insert molding.

  As a hard coat film molding used for film insert molding, a hard coat film molding in which a metal deposition layer or a printing layer is formed on one side of a film substrate such as a polyester film and a hard coat layer is formed on the other side A body has been proposed (for example, Patent Document 1 and Patent Document 2).

  It is also known to use a rubber composite film in which a silicone rubber layer and a plastic film are combined instead of a hard coat film on the surface of a molded product such as a resin (for example, Patent Document 3 and Patent Document 4). By using the rubber composite film, the tactile sensation can be softened and the clearness of printing such as a decorative layer formed inside the film can be maintained.

JP 2005-288720 A JP-A-2005-305786 Japanese Patent Laid-Open No. 10-226022 JP 2002-178478 A

  Since the conventional hard coat layer is merely for the purpose of protecting the surface of the resin molded product, its hardness is generally H or higher in pencil hardness and 300 g or more in steel wool test, and the touch is hard and cold, and slippery. It is easy and does not have a desirable tactile sensation in portable devices that require soft touch, grip and handling. Moreover, since it is too glossy, it lacks a high-class feeling and does not have sufficient design properties.

  In addition, the conventional rubber composite film improves the hard feel of the hard coat film by selecting the material of the rubber or by providing fine irregularities on the surface, but its surface roughness and thickness The hardness is not sufficient in terms of soft touch, grip, or handling.

  In view of the above problems, the present invention is a soft touch film molding for film insert molding that can form a soft touch surface on a resin molded product, and is easy to mold and excellent in durability. It is an object to provide a soft touch film molded body.

  The “soft touch surface” as used in the present invention means a grip that can comfortably hold and operate a molded product such as a resin such as a portable device in addition to soft touch that the touch feeling is moderately soft. And handling. In addition, the “soft touch surface” has a high-quality matt appearance and high design.

  The soft touch film molding according to the present invention that solves the above problems comprises a film substrate and a silicone rubber layer formed on the film substrate, and the Shore A hardness of the silicone rubber layer is 30 to 90 (durometer, JIS K6253), and the center line surface roughness Ra (JIS B0601: 1982) of the silicone rubber layer is in the range of 0.1 μm to 5.0 μm.

  By performing film insert molding using the soft touch film molded body according to the present invention having a silicone rubber layer having the above surface roughness and hardness, it is possible to give the molded product a soft touch surface which is a problem. . The soft touch surface has excellent tactile sensation and excellent scratch resistance and durability.

  The thickness of the silicone rubber layer is preferably 30 μm or more, particularly preferably in the range of 30 to 80 μm. When the thickness of the silicone rubber layer is in this range, the tactile sensation improving effect by controlling the surface roughness is sufficiently exhibited. Further, there is no peeling or warping during film insert molding, and the yield is good.

  The thickness of the film substrate of the soft touch film molded body according to the present invention is preferably in the range of 30 to 125 μm. This is because if the thickness of the film base is within this range, wrinkles and warpage will not occur when film insert molding is performed.

  In the soft touch film molding according to the present invention, the centerline surface roughness Ra of the silicone rubber layer is transferred by the surface shape of the protective film formed on the silicone rubber layer in the soft touch film for film insert molding. It is preferred that

  When the surface of the silicone rubber layer is processed using a protective film, there is no dirt or abrasive particles adhering, compared with the case where the surface of the silicone rubber layer is processed directly, and the labor for cleaning is reduced, and the mass productivity is excellent. As the protective film, a film that has been matted or embossed so that the surface of the release film has an appropriate surface roughness can be used.

  Moreover, by using a protective film, the surface of the silicone rubber layer is protected until immediately before the film insert molding process, and dust and scratches are not attached during transportation and storage. The protective film according to the present invention can be easily peeled even after the silicone rubber layer is crosslinked, depending on the thickness, hardness and surface roughness characteristics of the silicone rubber layer.

  Furthermore, it is preferable that a primer layer is formed between the film substrate and the silicone rubber layer. It is because the adhesive strength between a film base material and a silicone rubber layer increases by forming a primer layer.

  Moreover, it is preferable that a decoration layer is formed in the opposite side to the side in which the silicone rubber layer on the film base material was formed. It is because a high designability can be given to the resin molded product manufactured by film insert molding by forming a decoration layer.

  By producing a molded product such as a resin using the molded product of the soft touch film of the present invention, a molded product having a soft touch surface excellent in tactile sensation, holding sensation and operational sensation can be obtained.

  Furthermore, this invention provides the manufacturing method of the soft touch film molded object for film insert molding for manufacturing the resin molded product provided with the soft touch surface. The production method is a step of producing a soft touch film for film insert molding by forming a silicone rubber layer on a film substrate, wherein the silicone rubber layer has a thickness of 30 μm or more and a Shore A hardness of 30 to 30 The process is in the range of 90 and the center line surface roughness Ra of the silicone rubber layer is in the range of 0.1 μm to 5.0 μm, and a soft touch film for film insert molding is molded by a preform mold. Process.

  The soft touch film molding for film insert molding according to the present invention has a silicone rubber layer formed on a film substrate, and the silicone rubber layer has a predetermined hardness, surface roughness, and thickness. Flexibility and frictional force that contributes to good tactile sensation and the like can be imparted to the surface. Moreover, the soft touch film molding for film insert molding which concerns on this invention is excellent in a moldability, and a yield is favorable.

  Molding with a surface excellent in soft touch properties, grip properties, and handling properties by producing resin molded products such as mobile phones, notebook computers and portable game machines using the soft touch film molding according to the present invention Goods can be obtained. In addition, a molded product having a matte high-quality surface with reduced gloss and shine can be obtained. Furthermore, a molded article having high scratch resistance and durability can be obtained.

FIG. 1 is a sectional view schematically showing one embodiment of a soft touch film with a protective film used in the present invention. FIG. 2 is a sectional view schematically showing another embodiment of the soft touch film with a protective film used in the present invention. FIG. 3 is a cross-sectional view schematically showing still another aspect of the soft touch film with a protective film used in the present invention. FIG. 4 is a diagram showing a film insert molding process using the soft touch film molding for film insert molding of the present invention. FIG. 5 (A) is a scanning electron microscope (SEM) photograph of the surface of the protective film formed by mat processing used in the present invention, and FIG. 5 (B) is a silicone rubber formed by the protective film. It is a scanning electron microscope (SEM) photograph of the layer surface. 6A is a scanning electron microscope (SEM) photograph of the surface of a protective film formed by embossing used in the present invention, and FIG. 6B is a silicone rubber formed by the protective film. It is a scanning electron microscope (SEM) photograph of the layer surface.

  Various features of the invention will now be described with reference to the preferred embodiments, which are not intended to limit the invention, with reference to the drawings. The drawings are simplified for illustrative purposes, and the scales do not necessarily coincide.

  FIG. 1 shows a soft touch film 1 </ b> A according to a first aspect used in one aspect of the soft touch film molded body according to the present invention. The soft touch film 1 </ b> A is formed by forming a silicone rubber layer 3 and a protective film 4 on a film base 2.

  The soft touch film 1B of the 2nd aspect used for the other aspect of the soft touch film molded object which concerns on this invention is shown by FIG. The soft touch film 1 </ b> B is formed by further forming a primer layer 5 between the film base 2 and the silicone rubber layer 3.

  FIG. 3 shows a soft touch film 1 </ b> C according to a third embodiment, which is used in another embodiment of the soft touch film molded body according to the present invention. The soft touch film 1 </ b> C is formed by further forming a decoration layer (deposition layer or printing layer) 6 on the film base 2 on the opposite side of the silicone rubber layer.

The film base 2 used for the film base soft touch films 1A to 1C is a polyester-based, polyurethane-based, polyacrylic-based polymer, or a mixture thereof. The thickness of the film substrate 2 may be in the range of 25 to 150 μm, and preferably in the range of 30 to 125 μm.

  When the silicone rubber layer 3 is formed on the film substrate 2, it is desirable to form a primer layer 5 described later in order to improve adhesion, and the film substrate 2 is also subjected to corona discharge treatment and ultraviolet irradiation. Surface activation treatment such as treatment or plasma treatment may be performed. Further, the film base 2 may be blended with an antistatic agent, an antioxidant, a flame retardant, a filler of organic or inorganic fine particles, or a colorant, if necessary.

Silicone rubber layer The silicone rubber layer 3 is obtained by laminating an unvulcanized silicone rubber layer on the film substrate 2 of any of the soft touch films 1A to 1C and performing a crosslinking treatment (vulcanization treatment) by electron beam irradiation. It is formed by.

As the silicone rubber, an uncrosslinked organopolysiloxane represented by an average unit formula: Ra 2 Si 2 O 3 _{(4-a) / 2} is preferable. In the above formula, R is a substituted or unsubstituted monovalent hydrocarbon group, preferably a methyl group, a vinyl group, a phenyl group or the like. In the above formula, a is a number in the range of 1.9 to 2.1. The molecular structure of the silicone rubber is not particularly limited and includes, for example, a straight chain, a partially branched straight chain, a branched chain, etc. In order to form a silicone rubber, a linear polymer is used. Or a mixture mainly composed of a linear polymer.

  The silicone rubber preferably has a Shore A hardness in the range of 30 to 90 as measured by durometer type A. Within this range, it is preferable to select according to required characteristics such as tactile sensation and durability. If the Shore A hardness is less than 30, the strength of the silicone rubber becomes weak, and the durability such as wear resistance of the silicone rubber layer may be lowered, which is not preferable. Conversely, when the Shore A hardness exceeds 90, the effect of improving the tactile sensation is reduced, which is not preferable.

  The centerline surface roughness Ra (JIS B0601: 1982) of the silicone rubber layer 3 is preferably in the range of 0.1 to 5.0 μm. This is because when the surface roughness of the surface of the silicone rubber layer is within the above range, the feeling when touching the surface of the molded resin molded body is remarkably improved. When the surface roughness Ra is less than 0.1 μm, a sufficient tactile sensation improving effect cannot be obtained, and when the surface roughness Ra exceeds 5.0 μm, the rough feeling increases and the tactile sensation improving effect decreases, which is not preferable.

  The maximum surface roughness Rmax is preferably 20 μm or less. This is because if the thickness exceeds 20 μm, a rough feeling is generated, which is not preferable.

  The thickness of the silicone rubber layer 3 is preferably in the range of 30 to 80 μm. If the thickness of the silicone rubber layer 3 is less than 30 μm, the tactile sensation improving effect is lowered, which is not preferable. On the other hand, if it exceeds 80 μm, the tactile sensation improving effect is saturated and it is not preferable because it is economically disadvantageous.

Protective Film The predetermined surface shape of the silicone rubber layer 3 described above, that is, the center line surface roughness Ra in the range of 0.1 μm to 5.0 μm can be formed by the protective film 4. Specifically, a protective film 4 made of a film or fabric is superimposed on an uncrosslinked silicone rubber layer and pressed with a roll, so that the surface roughness or surface shape of the protective film is applied to the surface of the silicone rubber layer 3. It can be formed by transferring.

  As the protective film 4, a woven fabric such as a polyethylene film, a polyester film, a vinyl chloride film, a nylon taffeta, a polyester taffeta, or the like subjected to mat processing or emboss processing can be used.

  The mat processing is performed, for example, by a sand blasting method in which alumina or silica sand powder as an abrasive is projected onto a surface of a polyethylene film or the like with compressed air. In the embossing process, a polyethylene film or the like is passed between rolls having an uneven surface to form unevenness on the surface of the film or the like.

  In order to control the center line surface roughness Ra of the silicone rubber layer 3 within the range of 0.1 to 5.0 μm by transferring the surface shape of the protective film 4, an appropriate surface roughness is also formed on the protective film 4. It is preferred that The surface roughness formed on the protective film 4 is generally about 1 to 2 times larger than the desired surface roughness in the silicone rubber layer 3.

  The protective film 4 is layered when the silicone rubber layer is crosslinked, and can be peeled off after the crosslinking is completed. The protective film 4 is preferably peeled off immediately before the film insert molding process in order to prevent dust and the like from adhering to the surface of the silicone rubber layer.

Primer layer In addition, the surface on which to form a silicone rubber layer 3 of the film substrate 2 is preferably provided with a primer layer 5 for improving the adhesion strength between the film substrate 2 and the silicone rubber layer 3. When an adhesion improving agent is blended as the primer layer 5, polyhydric alcohol acrylic acid ester or methacrylic acid ester, polyhydric carboxylic acid allyl ester, or the like is used.

The opposite surface of the decorative layer film substrate on which the silicone rubber layer is formed, that is, the surface that faces the molding resin when a soft touch film molding is placed on the mold for film insert molding. In addition, by providing the decorative layer (deposition layer and / or print layer) 6, high designability can be imparted to the resin molded product.

Film Insert Molding Process A film insert molding process using the soft touch film molding according to the present invention is shown in FIGS. 4 (a) to 4 (f). Below, it demonstrates as what uses 1C of soft touch films of FIG. 3 for a soft touch film molding.

  First, the protective film 4 of the soft touch film 1C is peeled off before the film insert molding process. The surface shape formed on the surface of the protective film 4 in contact with the silicone rubber layer 3 is transferred to the surface of the silicone rubber layer 3, and the center line surface roughness Ra of the silicone rubber layer 3 from which the protective film 4 has been peeled is 0.1. It is in the range of ˜5.0 μm.

  FIG. 4A shows a process of heating and softening the film 10 from which the protective film of the soft touch film 1 </ b> C has been peeled off with the heater 12 before performing the film insert molding. In this step, the film 10 is arranged with the surface of the silicone rubber layer 3 on the heater side and the surface of the decorative layer 5 on the preform mold side.

  FIG.4 (b) shows the process of shape | molding the film 10 by vacuum pressure forming. In this process, the film 10 heated and softened by the heater 12 is molded along with the compressed air 13 along the preform die 11 by air suction from an air suction hole (not shown) of the preform die 11 (pre-molding). Thus, the soft touch film molding 10a according to the present invention is produced. In this process, in addition to vacuum / pressure molding, vacuum molding, pneumatic molding, and press molding can be used.

  FIG. 4C shows a trimming process. In this step, the soft touch film molded body 10 a is taken out from the preform mold 11, and unnecessary portions are trimmed by the trimming cutter 14.

  FIG. 4D shows a process in which the trimmed soft touch film molded body 10 a is placed in the mold 15. In this step, the soft touch film molded body 10a is placed on the resin injection side mold 15b with the movable mold 15a arranged with the silicone rubber layer 3 side facing outside and the side having the decorative layer 5 facing the injection resin side. The mold 15 is clamped.

  FIG. 4E shows a step of injecting a molding resin into the mold. In this step, the molding resin 17 melted at a high temperature is injected from the resin injection port 16 into the mold. At the same time as the resin molding layer 18 is formed, a resin molding 19 is produced in which the soft touch film molding 10a is integrated and bonded to the surface. As the resin molding material, for example, an acrylic resin, ABS (acrylonitrile / butadiene / styrene copolymer) resin, olefin resin, styrene resin, polycarbonate resin, or other thermoplastic resin or thermosetting resin can be used.

  FIG. 4F shows a state where the mold 15 is opened after the mold 15 is cooled. The resin molded body 19 is taken out, and a resin molded product having a soft touch surface using the soft insert film molded body for film insert molding according to the present invention is completed.

  In the following, preferred examples not intended to limit the scope of the present invention will be described and compared with conventional examples.

Example 1
-Manufacture of a soft touch film As a film base material for manufacturing the soft touch film which concerns on Example 1, the polyethylene terephthalate film whose thickness is 50 micrometers was used. In order to form a soft touch layer (soft touch surface) on the outside of the molded product, one side of the film base is so that the silicone rubber (polyalkylalkenylsiloxane crosslinked product) solution has a dried thickness of 50 μm. And dried at about 80 ° C.

  Subsequently, the surface having the above surface roughness of the protective film produced by matting the sand blasting method so that the polyethylene terephthalate film having a thickness of 75 μm had a surface roughness (Ra) of 1.5 μm was dried. Overlaid on silicone rubber. FIG. 5A is a scanning electron microscope (SEM) photograph of the surface of the protective film formed by mat processing. A laminated film was formed by continuously pressing the laminated protective film with a pressure roll.

  Subsequently, the laminated film was introduced into an electron beam irradiation apparatus, and an electron beam was irradiated from the silicone rubber side to complete the crosslinking treatment. The hardness (Shore A hardness) of the formed silicone rubber layer was 70. The soft touch film thus manufactured was wound up on a roll.

  Furthermore, a decorative layer was formed by screen printing on the opposite side of the surface of the soft touch film on which the silicone rubber layer was formed, using UV curable ink.

Pre-molding Before performing the pre-molding illustrated in FIGS. 4A to 4B, the protective film was peeled off from the soft touch film. The average surface roughness (Ra) of the silicone rubber layer from which the protective film was peeled was 1.0 μm. FIG. 5B is an SEM photograph of the surface of the silicone rubber layer transferred by the protective film of FIG. By subjecting this to a drawing process in a pre-molding step, a soft touch film molded body for film insert molding was obtained.

Formation of Resin Molded Body Subsequently, the soft touch film molded body was trimmed as shown in FIG. 4 (c) and placed in the mold as shown in FIG. 4 (d). Thereafter, film insert molding was performed as shown in FIGS. 4E to 4F, and the resin molded body having the soft touch surface of Example 1 was manufactured. As the molding resin, a mixed liquid of polycarbonate (PC) resin and acrylonitrile / butadiene / styrene copolymer (ABS) resin was used. Each setting of molding conditions was a mold temperature of 100 ° C., an injection resin temperature of 300 ° C., and an injection speed of 1 mm / s.

  Table 1 shows the characteristics of the soft touch film molded body and the characteristics of the manufactured resin molded body. The resin molded body produced using the soft touch film molded body of Example 1 was excellent in tactile sensation including soft touch properties, grip properties and handling properties, and was excellent in moldability. Further, the decorative design was clear and the surface was matte and had a high-grade appearance.

Example 2
In the film for film insert molding of Example 2, the surface roughness of the protective film was formed by embossing, and the average surface roughness (Ra) was 3.0 μm. The average surface roughness (Ra) of the silicone rubber layer of Example 2 obtained by the protective film was 3.0 μm. 6A is a scanning electron microscope (SEM) photograph of the surface formed by embossing the protective film of Example 2, and FIG. 6B is a silicone rubber layer formed by the protective film. It is a SEM photograph of the surface.

  The soft touch film molded body and the resin molded body of Example 2 were manufactured in the same manner as in Example 1 except for the other conditions. As shown in Table 1, the produced resin molding had an excellent tactile sensation and a high-grade appearance similar to those in Example 1.

Example 3
In Example 3, a soft touch film molded body and a resin molded body were manufactured with the Shore A hardness of the silicone rubber layer set to 50 and the other conditions being the same as in Example 1. As shown in Table 1, the resin molded product of Example 3 also had an excellent tactile and high-quality appearance.

Example 4
In Example 4, a soft touch film molded body and a resin molded body were manufactured under the same conditions as in Example 1 except that the thickness of the film substrate was 75 μm. As shown in Table 1, the resin molded body of Example 4 also had an excellent tactile sensation and a high-grade appearance.

Example 5
In Example 5, the thickness of the film substrate was set to 125 μm, and other conditions were the same as in Example 1, and a soft touch film molded body and a resin molded body were manufactured. As shown in Table 1, the resin molded body of Example 5 also had an excellent tactile sensation and a high-grade appearance.

Example 6
In Example 6, the thickness of the silicone layer was 30 μm, and other conditions were the same as in Example 1, and a soft touch film molded body and a resin molded body were manufactured. As shown in Table 1, the resin molded body of Example 6 also had an excellent tactile sensation and a high-grade appearance, but some peeling of the silicone rubber layer was observed.

Comparative Example 1
In Comparative Example 1, a film molded body and a resin molded body were manufactured with the Shore A hardness of the silicone rubber layer set to 95 and the other conditions being the same as in Example 1. As shown in Table 1, the resin molded product of Comparative Example 1 was warped and the production yield was poor, and the soft touch properties, grip properties, and handling properties were not sufficient.

Comparative Example 2
In Comparative Example 2, a film molded body and a resin molded body were manufactured with the Shore A hardness of the silicone rubber layer being 25 and the other conditions being the same as in Example 1. As shown in Table 1, the resin molded body of Comparative Example 2 had a surface that was too soft, and grip properties, handling properties, and the like were not sufficient. Moreover, in the process of peeling a protective film, a silicone layer may adhere to a protective film, and it was the evaluation result (total judgment x) which is unpreferable collectively.

Comparative Example 3
In Comparative Example 3, a protective film that was not subjected to mat processing was used as the protective film, and the average surface roughness (Ra) of the silicone rubber layer was 0.05 μm. The other conditions were the same as in Example 1, and a film molded body and a resin molded body were produced. As shown in Table 1, the resin molded body of Comparative Example 3 had no anti-slip effect and had difficulty in gripping and handling properties. There was no matte effect on the appearance, and a high-class feeling was not felt.

Comparative Example 4
In Comparative Example 4, a film molded body and a resin molded body were manufactured with the average surface roughness (Ra) of the protective film set to 8.0 μm and the other conditions being the same as in Example 1. The average surface roughness (Ra) of the silicone rubber layer of Comparative Example 4 obtained by the protective film was 7.0 μm. As shown in Table 1, the resin molded body of Comparative Example 4 had a feeling of roughness due to the surface roughness of the silicone rubber layer being too large, and had difficulty in soft touch properties, handling properties, and the like. Moreover, the design of the decoration layer became unclear and a high-class feeling was not felt.

Comparative Example 5
In Comparative Example 5, a film molded body and a resin molded body were manufactured under the same conditions as in Example 1 except that the thickness of the silicone rubber layer was 20 μm. As shown in Table 1, the resin molded body of Comparative Example 5 was peeled off from the silicone layer, and the tactile sensation could not be evaluated. Moreover, in the peeling process of the protective film before premolding, the silicone layer adhered to the protective film side, and peeling was difficult.

Comparative Example 6
A film molded body and a resin molded body were manufactured under the same conditions as in Example 1 except that the thickness of the silicone rubber layer was 100 μm. As shown in Table 1, the resin molded product of Comparative Example 6 was warped, the production yield was poor, and the touch feeling such as soft touch property was not sufficient.

Comparative Example 7
In Comparative Example 7, a film molded body and a resin molded body were manufactured by setting the thickness of the film base to 200 μm and making other conditions the same as in Example 1. As shown in Table 1, the resin molded body of Comparative Example 7 caused a large amount of warpage and was not practically usable.

  As described above, the soft touch film molded body for film insert molding according to the present invention comprises a film base material and a silicone rubber layer made of a polyester polymer or the like, and the silicone rubber layer has an appropriate hardness, surface roughness, and thickness. By being controlled, it is possible to remarkably improve the tactile sensation on the surface of a resin molded product such as a portable device to be manufactured, that is, soft touch property, grip property, and handling property. Moreover, the soft touch film molding which concerns on this invention has favorable moldability, and is excellent also in heat resistance, scratch resistance, and durability. The predetermined surface roughness of the silicone rubber layer can be formed by transferring the surface shape of the protective film. The protective film can ensure the quality of the soft touch film by preventing dust and impurities from being mixed during storage and transportation. The protective film can be easily peeled off from the silicone rubber layer. Furthermore, by changing the hardness, surface roughness, and thickness of the silicone rubber layer within the range disclosed in the present invention, the soft touch, grip, or handling tactile sensation is optimized depending on the application of the resin molded product. Can be

  Those skilled in the art will appreciate that many different modifications are possible without departing from the spirit and aspects of the invention. Accordingly, it goes without saying that the embodiments of the present invention are merely examples, and do not limit the scope of the present invention.

DESCRIPTION OF SYMBOLS 1A Soft touch film 1B of 1st aspect Soft touch film 1C of 2nd aspect Soft touch film 2 of 3rd aspect 3 Film base material 3 Silicone rubber layer 4 Protective film 5 Primer layer 6 Decoration layer 10 Protective film peels Soft touch film 10a soft touch film molding 11 preform mold 12 heater 13 compressed air 14 trimming cutter 15 molding mold 15a movable mold 15b resin injection side mold 16 resin injection port 17 molding resin 18 resin molding layer 19 resin molding body

Claims (8)

A soft touch film molding for film insert molding for producing a resin molded product having a soft touch surface,
A film substrate;
A silicone rubber layer formed on the film substrate,
The Shore A hardness of the silicone rubber layer is in the range of 30 to 90;
The silicone rubber layer has a center line surface roughness Ra in the range of 0.1 μm to 5.0 μm.
A soft touch film molding characterized in that. The silicone rubber layer has a thickness of 30 μm or more,
The soft touch film molding according to claim 1. The film substrate has a thickness in the range of 30 μm to 125 μm;
The soft touch film molded article according to claim 1 or 2, wherein the molded article is a soft touch film. The centerline surface roughness Ra of the silicone rubber layer is transferred by the surface shape of the protective film formed on the silicone rubber layer in the soft touch film for film insert molding,
The soft touch film molded article according to any one of claims 1 to 3, wherein the molded article is a soft touch film. A primer layer is formed between the film substrate and the silicone rubber layer.
The soft touch film molded article according to any one of claims 1 to 4, wherein the molded article is a soft touch film. A decorative layer is formed on the opposite side of the film base on which the silicone rubber layer is formed.
The soft touch film molded article according to any one of claims 1 to 5, wherein the molded article is a soft touch film.   A resin molded product produced by using the soft touch film molded body according to any one of claims 1 to 6. A method of manufacturing a soft touch film molding for film insert molding for manufacturing a resin molded product having a soft touch surface,
A process for producing a soft touch film for film insert molding by forming a silicone rubber layer on a film substrate, wherein the silicone rubber layer has a thickness of 30 μm or more and a Shore A hardness of 30 to 90 And the silicone rubber layer has a center line surface roughness Ra in the range of 0.1 μm to 5.0 μm, and
The step of molding the soft touch film for film insert molding by a preform mold,
A method for producing a soft touch film molding for film insert molding.