JP5856451B2 - Resin molded product manufacturing method and film - Google Patents

Description

  The present invention relates to a resin molded product manufacturing method and a film in which decoration is performed.

  A product in which the surface of a molded product of metal or resin is decorated is used in various fields such as automobiles, home appliances, mobile phones, personal computers and the like. The surface of the molded product is decorated by, for example, bringing a resin into contact with a transfer sheet having a transfer layer and transferring the pattern of the transfer layer to the molded product simultaneously with molding.

  In recent years, a glass fiber reinforced resin has been used in order to reduce the thickness and weight of products (see, for example, Patent Document 1).

JP-A-2-169212

  However, in the glass fiber reinforced resin, the smoothness of the product surface is lowered due to the glass fiber, resulting in poor appearance. Therefore, in Patent Document 1, by separating the fabric from a molded product in which the fabric adheres to the surface obtained by injection molding the synthetic resin using an injection molding die in which the fabric is stretched at the opening, Manufactures good thin-wall injection molded products.

  The subject of this invention is improving the smoothness of the product surface, when decorating the molded article obtained by performing injection molding using fiber reinforced resin.

  Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.

The resin molded product manufacturing method according to an aspect of the present invention includes the following steps.
◎ When the fiber reinforced resin is injection-molded, the molded product is manufactured with the non-decorative layer portion of the film corresponding to the surface of the molded product.
◎ Decorate the surface of the molded product.
In this manufacturing method, even if a fiber reinforced resin is used, since the molded product is manufactured in a state where the non-decorative layer portion of the film is made to correspond, the product surface is made uniform, and as a result, after the decoration, The fibers do not appear to float on the surface of the molded product.

  The non-decorative layer portion of the film may have a 60 ° gloss value of 20.0 or less.

  The non-decorative layer portion of the film may have an Ra value of 0.15 or more.

  The decoration may be transfer by a film.

  A film has a decoration layer part and a non-decoration layer part, and when performing decoration, you may perform compression molding using a decoration layer part. In this case, since there is no need to replace the film, productivity is improved.

  The non-decorative layer portion may be a portion in which the decorative layer is removed from the decorative layer portion in the step of performing the previous decoration. In this case, since the same part of the film is used in two steps, the amount of film used is reduced.

  When producing a molded product, the primer treatment layer may be formed on the surface at the same time. In this case, the adhesion of the decorative layer to the molded product is improved in a later step.

  A film according to still another aspect of the present invention is used to produce a molded product using a fiber reinforced resin, and includes a non-decorative layer portion and a decorative layer portion alternately. The non-decorative layer portion is arranged corresponding to the surface of the molded product when the fiber reinforced resin is injection-molded. The decorative layer portion is used to decorate the surface of the molded product.

  In the resin molded product manufacturing method according to the present invention, the smoothness of the product surface is improved when injection molding is performed using a glass fiber reinforced resin.

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1. 1st Embodiment (1) Transfer | display decoration goods 1st Embodiment is described using FIGS. FIGS. 1-6 is a schematic diagram which shows the manufacturing process of a transcription | transfer decorating article, all. FIG. 7 is a schematic cross-sectional view of a transfer decorative article.

  As shown in FIG. 7, the transfer decorative article 27 includes a body to be decorated 27a and a pattern 27c formed on the first surface 27b of the body to be decorated 27a. The transfer decorative product 27 is a thin (for example, about 1 mm or less) resin molded product.

(2) Transfer decoration device As shown in FIG. 1, the transfer decoration device 1 used for manufacturing the transfer decoration product 27 includes a transfer decoration mold 3, a medium injection device 5, and a transfer sheet feeding mechanism 7. And have.
The transfer decoration mold 3 includes a first mold 11 and a second mold 13. The first mold 11 has a cavity 11a. The second mold 13 can be moved toward and away from the first mold 11. The 2nd metal mold | die 13 has the 1st member 13a, the 2nd member 13b, and the 3rd member 13c.
The first member 13a has a cavity 13d. The cavity 13d forms a cavity into which resin can be injected between the cavity 11a and the first mold 11 by clamping. The second member 13b is mounted so as to be movable in the first member 13a. In FIG. 1, the second member 13b is not in the cavity 13d, but can be moved to a position in the cavity 13d. The third member 13c is fixed to the second member 13b.

The transfer sheet feeding mechanism 7 includes a first roller 15 and a second roller 17. A transfer sheet 19 is looped between the first roller 15 and the second roller 17. The transfer sheet 19 is a roll-shaped long film.
The transfer sheet 19 includes a base sheet and a transfer layer formed thereon, and the transfer layer decorates the first surface 27b of the object to be decorated 27a. In the following description, a portion where the transfer layer is lost as a result of the transfer is referred to as a non-decorative layer portion (clear film portion) 21, and a portion where the transfer is not performed is referred to as a decorative layer portion 23.

  As the substrate sheet, a known transfer sheet substrate sheet can be used. Constituent materials for the base sheet include polyester resins such as polyethylene terephthalate, polypropylene resins, acrylic resins, polycarbonate resins, polyamide resins, polyimide resins, olefin resins, urethane resins and acrylonitrile butadiene styrene resins. At least one synthetic resin selected from the group consisting of The base sheet is a single layer sheet formed from the above synthetic resin, a laminated sheet in which two or more single layer sheets are laminated, or a copolymer sheet using the above synthetic resin. In particular, in the method for producing a transfer decorative article according to each embodiment, a base sheet such as polyethylene terephthalate resin having good dimensional stability and not easily deformed by printing and drying is selected.

The transfer layer includes, for example, a pattern layer that expresses characters and patterns, and an adhesive layer that improves the adhesion between the object to be decorated and the transfer layer. The pattern layer or the like is formed on the substrate sheet by a printing method such as a gravure printing method, a screen printing method, or an offset printing method, or a coating method such as a gravure coating method, a roll coating method, or a comma coating method. The transfer layer includes a hard coat layer that secures the strength of the surface of the object to be decorated and improves scratch resistance, or an anchor layer that improves interlayer adhesion, or a plurality of similar layers such as a plurality of design layers. May be.
A release layer for improving the peelability of the transfer layer from the base sheet may be provided between the base sheet and the transfer layer.

The thickness of the non-decorative layer portion 21 is preferably in the range of 25 to 75 μm, and more preferably in the range of 38 to 50 μm.
Moreover, it is preferable that the non-decorative layer portion 21 has a mat shape in which fine irregularities are formed on the surface.

The non-decorative layer portion 21 preferably has a 60 ° gloss value of, for example, 20.0 or less. The value is more preferably 7.0 to 17.0.
Moreover, it is preferable that the Ra value of the non-decorative layer part 21 is 0.15 or more. The value is more preferably 0.15 to 0.47.

  The second mold 13 is formed with a gate (not shown) through which the glass fiber reinforced resin 25 is injected from the medium injection device 5. Then, in a state where the first mold 11 and the second mold 13 are clamped, the glass fiber reinforced resin 25 is injected from the gate into the cavity (cavity 11a and cavity 13d).

  The glass fiber reinforced resin 25 is a liquid having viscosity or a molten resin having fluidity, and is a glass fiber reinforced resin in which glass fibers are mixed in a resin main body. The resin body may be either a thermoplastic resin or a thermosetting resin. The glass fiber is in the range of 30 to 50%, but may exceed 50%.

(3) Processing procedure of resin molding (3-1) Clear molding step As shown in FIG. 1, the second non-decorative layer portion 21 of the transfer sheet 19 is disposed in the cavity 11 a of the first mold 11, and the second The mold 13 is arranged at a mold clamping position with respect to the first mold 11. In this state, the second member 13b does not protrude into the cavity 13d of the first member 13a.

Next, the glass fiber reinforced resin 25 is injected into the cavity from the medium injection device 5. At this time, the transfer sheet 19 is pushed into the cavity 11 a of the first mold 11 by the glass fiber reinforced resin 25 injected into the cavity. The to-be-decorated body 27a is formed by cooling the glass fiber reinforced resin 25 filled in the cavity. In addition, the 1st surface 27b by the side of the 1st metal mold | die 11 of the to-be-decorated body 27a is shape | molded in the state pressed against the non-decorative layer part 21. FIG.
At this time, the mold temperature is 80 to 100 °, but since there is no transfer layer, there is no problem of ink flow.
Moreover, since the non-decorative layer portion 21 is set sufficiently thin as described above, heat does not accumulate. Therefore, even if the mold temperature is high, the film is difficult to melt.

  Next, as shown in FIG. 2, the 2nd metal mold | die 13 moves to the direction away from the 1st metal mold | die 11, and a mold opening is performed. At this time, the object to be decorated 27 a is separated from the first mold 11 together with the second mold 13.

(3-2) Transfer Process by Compression Molding Next, as shown in FIG. 3, the transfer sheet feeding mechanism 7 moves the decorative layer portion 23 of the transfer sheet 19 to a portion corresponding to the cavity 11 a of the first mold 11. Let Further, the decorative layer portion 23 is brought into close contact with the bottom surface of the cavity 11a by a suction device (not shown).

  Next, as shown in FIG. 4, the second mold 13 approaches the first mold 11 and the mold clamping is performed. Further, the second member 13b protrudes into the cavity 13d of the first member 13a. As a result, the cavity 13d has the shape of an annular recess 13e, whereby the object to be decorated 27a is formed with an annular protrusion. In the above state, the object to be decorated 27a is compressed in the cavity, and the transfer layer of the decoration layer portion 23 is transferred to the first surface 27b as a pattern 27c.

As shown in FIG. 5, after the molten resin is cured, the mold clamping is released by separating the second mold 13 from the first mold 11. Further, the transfer decorative article 27 is pushed out by a push rod (not shown) provided in the second mold 13 and taken out.
In addition, since the non-decorative layer portion 21 of the transfer sheet 19 remains in the first mold 11, the transfer sheet 19 is not fed thereafter. That is, this non-decorative layer portion 21 is used for the injection molding operation of the next molded product.

In the present embodiment, the portion of the film without ink is used in the molding process, so that the problem of ink flow at the gate does not occur. Therefore, the gate can be freely installed in the mold. That is, since it is not necessary to be a side gate, post-processing is also unnecessary. In addition, in the prior art, the ink flow means that the design layer flows along with the flow at the time of injection molding when the design layer is heated together with the base sheet.
Moreover, in this embodiment, since the mold temperature can be set to 80 ° C. or higher, for example, 80 to 100 °, generation of weld lines and flow marks can be suppressed. The weld line refers to the relationship between the position, shape and number of gates and the shape of the molded product when heated molten resin is injected into the mold and spreads and fills the mold. Is an incomplete coalescence phenomenon between the resins that occur in the coalesced part when coalescing after diversion. The flow mark is a phenomenon in which a stripe is formed between the resin that first flows into the mold and begins to cool, and the resin that flows into the mold, and shows a flow trajectory.
In this embodiment, if the gloss value of the non-decorative layer portion of the film and the value of Ra satisfy the above conditions, even when a glass fiber reinforced resin having a glass fiber content of 30% or more is used, after decoration A beautiful matte feeling can be obtained with this molded product, and roughness is not a concern. In addition, product warpage is reduced.

2. Second Embodiment (1) Molding Device A second embodiment will be described with reference to FIGS. 8-14 is a schematic diagram which shows the manufacturing process of transcription | transfer decoration goods, all.

As shown in FIG. 8, the molding device 41 used for manufacturing the transfer decorative article includes a mold 43, a medium injection device 45, and a clear film feed mechanism 47.
The mold 43 includes a first mold 51 and a second mold 53. The second mold 53 can approach and separate from the first mold 51.
The first mold 51 has a flat surface 51a. The second mold 53 has a cavity 53a. The cavity 53a is formed between the flat surface 51a and a cavity into which resin can be injected by clamping with the first mold 51.

The clear film feed mechanism 47 has a first roller 55 and a second roller 57. A clear film 59 is wound between the first roller 55 and the second roller 57. The clear film 59 is a roll-shaped long film.
The clear film 59 is a clear film having no transfer layer, and is mainly composed of a base sheet. The clear film 59 is equivalent to the non-decorative layer portion 21 in the embodiment. The clear film 59 may be provided with a release layer.

  The second mold 53 is formed with a gate (not shown) through which the glass fiber reinforced resin 65 is injected from the medium injection device 45. Then, in a state where the first mold 51 and the second mold 53 are clamped, the glass fiber reinforced resin 65 is injected from the gate into the cavity (cavity 53a). The glass fiber reinforced resin 65 is equivalent to the glass fiber reinforced resin 25 in the embodiment.

(2) Resin Molding Procedure (2-1) Clear Molding Step As shown in FIG. 8, the second mold 53 is replaced with the first mold 51 with the clear film 59 disposed on the first mold 51. On the other hand, it is placed at the clamping position.

  Next, as shown in FIG. 9, a glass fiber reinforced resin 65 is injected into the cavity from the medium injection device 45. At this time, the decorated body 67a is formed by filling the cavity with the glass fiber reinforced resin 65 and further cooling. In addition, the 1st surface 67b by the side of the 1st metal mold | die 51 of the to-be-decorated body 67a is shape | molded in the state pressed against the clear film 59. FIG.

  Next, as shown in FIG. 10, the second mold 53 moves in a direction away from the first mold 51, and the mold opening is performed. At this time, the object to be decorated 67 a moves away from the first mold 51 together with the second mold 53.

  Next, as shown in FIG. 11, the object to be decorated 67 a is removed from the second mold 53.

(2-2) Transfer Process As shown in FIG. 12, the transfer decoration device 71 used for manufacturing a transfer decorative product has a first chamber 81 and a second chamber 83. The transfer decoration device 71 is a device that can transfer to a three-dimensional housing.
The 1st chamber 81 has the mounting part 81a in which the to-be-decorated body 67a is mounted in the upper surface. The first chamber 81 is provided with a decompression mechanism (not shown).
The second chamber 83 can approach and leave the first chamber 81. The second chamber 83 has a recess 83 a that forms a sealed space with the mounting portion 81 a of the first chamber 81. The second chamber 83 is provided with a not-shown atmospheric pressure adjusting mechanism.

  The transfer sheet 91 is a sheet composed of a base sheet 93 and a transfer layer 95 formed thereon, and the transfer layer 95 decorates the first surface 67b of the object to be decorated 67a. To do. The transfer layer 95 generally has a release layer, an adhesive layer, and a design layer disposed therebetween. A release layer that improves the peelability of the transfer layer 95 from the base sheet 93 may be provided between the base sheet 93 and the transfer layer 95.

As shown in FIG. 12, the to-be-decorated body 67a is arrange | positioned in the mounting part 81a of the 1st chamber 81, and also the transfer sheet 91 is arrange | positioned above the to-be-decorated body 67a. In this state, the first surface 67 b of the decorating body 67 a faces the transfer layer 95 of the transfer sheet 91.
Next, as shown in FIG. 13, the second chamber 83 is brought close to the first chamber 81, and the first chamber 81 and the second chamber 83 are brought into contact (clamping). Next, an unillustrated pressure adjusting mechanism depressurizes the first chamber 81 side (not shown) of the sealed space between the first chamber 81 and the second chamber 83, while an unillustrated air pressure adjusting mechanism is connected to the first chamber 81. High-pressure air is sent to the second chamber 83 side (not shown) of the sealed space between the second chamber 83. As a result, the transfer sheet 91 is pressed against the first surface 67b of the decorating body 67a, and the pattern 67c is transferred to the first surface 67b of the decorating body 67a by the transfer layer 95.

  As shown in FIG. 14, when the decoration with the transfer sheet 91 on the decoration body 67a is finished, the operation of the atmospheric pressure adjustment mechanism and the pressure reduction mechanism is stopped, and then the second chamber 83 is separated from the first chamber 81, Finally, the molded product 67 is taken out from the first chamber 81.

3. Third Embodiment In the first embodiment, the transfer sheet was initially formed with a transfer layer on all sides, and one side was used for the transfer step and the next molding step. It is not limited to such an embodiment.
For example, in the embodiment shown in FIG. 15, the decorative layer 23 and the non-decorative layer 21 are alternately formed on the transfer sheet 19. In this embodiment, the transfer sheet 19 is sent out for each of the molding process and the transfer process described in the first embodiment.
4). Example

Example 1 is an example of Embodiment 2 described above.
(1) Molding Step (a) Preparation of Clear Film A melamine resin was applied to the entire surface of 1 μm on a 50 μm thick PET film containing silica having an average particle diameter of 5 μm. As a result, a clear film having a Ra value = 0.42 on the film surface and a gloss value = 16.2 was obtained.

(B) Molding operation Using the above-mentioned clear film, a molding simultaneous transfer method was executed. Specifically, it was molded with a PA resin containing 50% glass fiber at a mold temperature of 90 ° C. Thereafter, the base sheet was peeled from the molded product, and a 1 mm thick glass fiber reinforced resin molded product having a three-dimensional shape was obtained.
The obtained molded article had a surface property with a surface Ra value = 0.28 and a gloss value = 7.3, and had a uniform surface with no glass fiber floating. Further, the molded product was free from warpage.

(2) Transfer process (a) Preparation of hard coat transfer sheet A 1 μm melamine resin is coated on a 25 μm thick PET film, and a thermosetting and ultraviolet curable resin is applied thereon using a gravure coating method. 10 μm was applied and heated at 150 ° C. for 1 minute to be semi-cured, then a pattern was formed with a black pigment on the semi-cured resin, and finally an adhesive layer was formed. As a result, a hard coat transfer sheet was obtained.

(B) Transfer Operation Using a hard coat transfer sheet, a vacuum / pressure air three-dimensional transfer method was executed. Specifically, the transfer layer was transferred to the surface of the molded product. Furthermore, after peeling off the base sheet, the intermediate molded product was irradiated with ultraviolet rays to obtain a glass fiber reinforced decorative molded product having a three-dimensional shape.
The obtained molded article had a surface property with an Ra value = 0.04 and a gloss value = 101.7, and no glass fiber float was observed.

Example 2 is an example of the first embodiment or the third embodiment described above.
(1) Molding step (a) Preparation of hard coat mat transfer sheet A melamine resin was applied to the entire surface of 1 μm on a 50 μm thick PET film containing silica having an average particle diameter of 5 μm. As a result, a mat transfer sheet having a Ra value = 0.46 and a gloss value = 14.2 on the film surface was obtained. A 6 μm thermosetting and UV curable resin is applied onto the mat transfer sheet using a gravure printing method, followed by forming a pattern with a black pigment on the thermosetting and UV curable resin. An adhesive layer was formed on. As a result, a hard coat mat transfer sheet was obtained. And the ultraviolet-ray was irradiated to the said sheet | seat, and hardening of the hard-coat layer was completed.

(B) Molding operation The molding simultaneous transfer method was executed in a state where the surface of the molded product was made to correspond to the portion of the mat transfer sheet having no pattern. Specifically, it was molded at a mold temperature of 70 ° C. using a PC resin containing 40% glass fiber. The mold was opened once before compression and cooling of the molded product, and the base sheet was peeled from the molded product.
(2) Transfer process The pattern part formed with the black pigment of the sheet was sent into the cavity, and after closing the mold, the thickness of the molded product was compressed by 0.3 mm with a mold compression mechanism. Thereby, the transfer layer of the transfer sheet was transferred to the surface of the molded product. After cooling, the mold was opened, the transfer sheet was peeled off, and the molded product was taken out. Then, by irradiating the intermediate molded product with ultraviolet rays, a glass fiber reinforced decorative molded product having a three-dimensional shape and a thickness of 1 mm was obtained.
The obtained molded article had a surface property with an Ra value = 0.34 and a gloss value = 14.0, and no glass fiber float was observed. Further, the molded product was free from warpage.

Example 3 is an example of the first embodiment or the third embodiment described above.
(1) Molding step (a) Preparation of hard coat mat transfer sheet A melamine resin was applied to the entire surface of 1 μm on a 38 μm thick PET film containing silica having an average particle diameter of 5 μm. A surface state with a Ra value of 0.46 and a gloss value of 14.2 on the film surface was obtained. On the film surface, 10 μm of a thermosetting and ultraviolet curable resin was applied using a gravure coating method, and heated at 150 ° C. for 1 minute to be semi-cured. Then, the pattern layer was formed with the black pigment on the semi-cured resin using the gravure printing method. Finally, a hard coat mat transfer sheet was obtained by forming an adhesive layer on the design layer.

(B) Molding operation The molding simultaneous transfer method was executed in a state where the sheet without the ink layer of the mat transfer sheet was held in the cavity. Specifically, the molten resin was a PPS resin containing 40% glass fiber (flexural modulus of 11,800 MPa). The molding conditions were a cylinder temperature of 300 ° C. and a mold temperature of 80 ° C. The mold was opened once before compression and cooling of the molded product, and the base sheet was peeled off. In addition, the state without an ink layer was obtained by transferring an ink layer to a molded product by the previous molding (described later).

(2) Transfer process The pattern part formed with the black pigment of the sheet was fed into the cavity, and after closing the mold, the thickness of the molded product was compressed by 0.4 mm with a mold compression mechanism. As a result, the transfer layer was transferred to the surface of the molded product. After cooling, the mold was opened, the transfer sheet was peeled off, and the molded product was taken out. Then, the intermediate molded product was irradiated with ultraviolet rays to obtain a glass fiber reinforced decorative molded product having a three-dimensional shape and a thickness of 0.8 mm.
The obtained molded article had a surface property with an Ra value = 0.34 and a gloss value = 14.0, and no glass fiber float was observed. Further, the molded product was free from warpage. There was no ink flow at the gate.

(Comparative example)
(A) Preparation of hard coat transfer sheet A 1 μm melamine resin was coated on a 100 μm thick PET film, and a gravure coating method was used on the surface state of Ra value = 0.04 and gloss value = 101.7. Then, 10 μm of a thermosetting and ultraviolet curable resin was applied and heated at 150 ° C. for 1 minute to be semi-cured. Then, the pattern layer was formed with the black pigment on the semi-cured resin using the gravure printing method, and finally the adhesive layer was formed. As a result, a mirror hard coat transfer sheet was obtained.

(B) Molding operation The transfer layer was transferred onto the surface of the molded article using a mirror-like hard coat transfer sheet using the molding simultaneous transfer method. Then, after peeling off the base sheet, the intermediate molded product was irradiated with ultraviolet rays to obtain a 1 mm thick glass fiber reinforced decorative molded product having a three-dimensional shape.
The obtained molded product was lost even when the mold temperature was 50 ° C., because the design layer and adhesive layer of the gate portion flowed by heat and pressure during injection molding.
Moreover, although the Ra value = 0.07 of the surface of the molded product was low, the gloss value was high as 101.6, and the surface was uneven and the appearance of glass fibers floating was poor.
Further, the molded product had a large warp with a float of 2 mm or more at the end.
In addition, a weld line due to a multipoint gate was generated, and a flow mark was also generated around the gate.

  Furthermore, the relationship between the characteristics of the surface of the clear film and the molded product will be described with reference to FIG. In each example, a glass fiber reinforced resin obtained by mixing 40% glass fiber with polycarbonate is used. In Comparative Example 1 and Comparative Example 2, the 60 ° gloss value of the clear film exceeds the range of 7.0 to 17.0, and the Ra value of the clear film exceeds the range of 0.15 to 0.47. . As a result, the molded product of Comparative Example 1 is rough but glossy, so the evaluation is x. The molded product of Comparative Example 2 has a clean mat feeling and is not worried about roughness, but has a large gloss value, and therefore is evaluated as x. In Examples 1 to 3, the 60 ° gloss value of the clear film is in the range of 7.0 to 17.0, and the Ra value of the clear film is in the range of 0.15 to 0.47. As a result, the molded products of Examples 1 to 3 are evaluated as “good” because a clean mat feeling is obtained and the roughness is not a concern.

5). Effects of Embodiment The above embodiment can be expressed as follows.

(A) The resin molded product manufacturing method includes the following steps.
When the glass fiber reinforced resin 25 (an example of a fiber reinforced resin) is injection-molded, the transfer sheet 19 (an example of a film) is placed on the first surface 27b (an example of a surface) of a decorated body 27a (an example of a molded product). The to-be-decorated body 27a is manufactured in a state in which the non-decorative layer portion 21 (an example of a portion having no decorative layer) is associated.
A design 27c (an example of a design) is applied to the first surface 27b of the object to be decorated 27a.
In this manufacturing method, even if a glass fiber reinforced resin is used, since the molded product is manufactured in a state where the non-decorative layer portion of the film is made to correspond, the surface of the product is made uniform. It will not appear to float up.

  (B) The non-decorative layer portion 21 has a 60 ° gloss value of 20.0 or less.

  (C) The non-decorative layer portion 21 has an Ra value of 0.15 or more.

  (D) Giving a design is performed by transfer.

  (E) In the first embodiment, the transfer sheet 19 has a decorative layer portion 23 (an example of a portion with a decorative layer) and a non-decorative layer portion 21 (an example of a portion without a decorative layer). Is applied to the decorative layer portion 23 to perform compression molding. In this case, since there is no need to replace the transfer sheet 19, productivity is improved.

  (F) In 1st Embodiment, the non-decoration layer part 21 is a part from which the transfer layer was lose | eliminated from the decoration layer part 23 at the process of providing the previous design. In this case, since the same part of the film is used in two steps, the amount of film used is reduced.

(G) When creating a molded product, the primer treatment layer may be formed on the first surface 27b at the same time. In this case, the adhesion of the decorative layer to the molded product in the subsequent process is improved.
The primer-treated layer needs to have a property of having adhesion to both the resin surface of the molded product and the decorative layer. For example, a vinyl chloride-based, urethane-based, acrylic-based, or polyester-based material is used alone or in combination.

6). Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, a plurality of embodiments and modifications described in this specification can be arbitrarily combined as necessary.

(1) In the said 1st and 2nd embodiment, although decoration to a molded article was performed by transcription | transfer, this invention is not limited to such embodiment. For example, the molded product may be decorated by painting.
(2) In the first to third embodiments, glass fibers are used as the resin reinforcing fibers, but the present invention is not limited to such embodiments. For example, carbon fibers may be used.
(3) In the above-described embodiment, a transfer sheet in which the base sheet is finally peeled off from the product is used in the decorating step, but a laminate sheet in which the base sheet remains on the product may be used.

  The present invention can be widely applied to a resin molded product manufacturing method in which decoration is performed.

DESCRIPTION OF SYMBOLS 1 Transfer decoration apparatus 3 Transfer decoration mold 5 Medium injection apparatus 7 Transfer sheet feeding mechanism 19 Transfer sheet 21 Non-decoration layer part 23 Decoration layer part 25 Glass fiber reinforced resin 27 Transfer decoration product 27a Decorating body 27b First surface 27c

Claims (8)

When manufacturing a molded product by injection molding a fiber reinforced resin, the non-decorative layer portion of the film having a decorative layer portion and a non-decorative layer portion is associated with the surface of the molded product. Manufacturing the molded article ;
The process of decorating the surface of the said molded product by making the said decoration layer part of the said film respond | correspond to the said surface of the manufactured said molded product, and the manufacturing method of the resin molded product. The method for producing a resin molded product according to claim 1, wherein the non-decorative layer portion of the film has a 60 ° gloss value of 20.0 or less. The method for producing a resin molded product according to claim 1 or 2, wherein the non-decorative layer portion of the film has an Ra value of 0.15 or more. The said decoration is a manufacturing method of the resin molded product in any one of Claims 1-3 performed by compression molding. The said non-decorative layer part is a part in which the decorating layer was lose | eliminated from the said decorating layer part at the process of performing a previous decorating, The manufacture of the resin molded product in any one of Claims 1-4. Method. The method for producing a resin molded product according to any one of claims 1 to 4, wherein when the molded product is produced, a primer treatment layer is simultaneously formed on the surface. When the fiber reinforced resin is injection molded, the molded product is manufactured with the non-decorative layer portion of the film corresponding to the surface of the molded product,
Next, decorate the surface of the molded product,
A method for producing a resin molded product, wherein a primer-treated layer is simultaneously formed on the surface when the molded product is produced. A film used to produce a molded product using a fiber reinforced resin,
A non-decorative layer portion arranged corresponding to the surface of the molded product when the fiber reinforced resin is injection molded,
A decorative layer portion used to decorate the surface of the molded article;
Film with alternating.

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