JP2008155543A - Method for attaching patterns to frp and its molded article - Google Patents

Method for attaching patterns to frp and its molded article Download PDF

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JP2008155543A
JP2008155543A JP2006348543A JP2006348543A JP2008155543A JP 2008155543 A JP2008155543 A JP 2008155543A JP 2006348543 A JP2006348543 A JP 2006348543A JP 2006348543 A JP2006348543 A JP 2006348543A JP 2008155543 A JP2008155543 A JP 2008155543A
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smc
frp
patterned
patterns
patterning method
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JP5122808B2 (en
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Shinji Urano
伸治 浦野
Hidemi Ibi
秀実 揖斐
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Panasonic Electric Works Bath and Life Co Ltd
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Matsushita Electric Works Bathroom Ware System and Life Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain easily and cheaply an SMC (Sheet Molding Compound) with patterns two or more sorts of design patters appearing on the surface of which, and to obtain an FRP (Fiber Reinforced Plastic) molded article of high quality and high strength cheaply and in a high yield. <P>SOLUTION: In attaching patterns to FRP consisting of an SMC, the method for attaching patterns to FRP comprises: the lamination process of stacking two or more sorts of SMC material sheets 1 which has different colors at least in a laminar shape to make an SMC laminate 2; and the cutting process of cutting the SMC laminate 2 in the direction parallel to a stacking direction A thereafter and thereby a tabular SMC3 with patterns the surface of which develops two or more sorts of design patterns is obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ＦＲＰの柄付け方法とその成形品に関し、詳しくはＦＲＰの表面層に柄付けを行なうための製法技術に関するものである。   The present invention relates to an FRP patterning method and a molded product thereof, and more particularly to a manufacturing technique for patterning an FRP surface layer.

従来、ＦＲＰ（繊維強化プラスチック）の柄付け方法としては、模様が印刷された不織布の基材に樹脂材料を含浸させて成る柄シートを用いて、ＳＭＣ等の成形とその表面への柄付けとを同時に行なう方法が一般的である（例えば、特許文献１参照）。   Conventionally, as a patterning method for FRP (fiber reinforced plastic), a pattern sheet formed by impregnating a non-woven substrate on which a pattern is printed with a resin material, molding of SMC, etc. and patterning on its surface Are generally performed simultaneously (see, for example, Patent Document 1).

また他の従来例として、模様の付いた不織布の柄シートをＳＭＣと同時成形した後に表面をクリア塗料で被覆する方法、さらには、後塗装により柄付けするといった方法もある。   As another conventional example, there is a method in which a patterned nonwoven fabric pattern sheet is formed simultaneously with SMC and then the surface is coated with a clear paint, and further, a patterning method is performed by post-coating.

ところが、従来の柄シートは高価であるうえに、製造に多くの工程が必要となるという課題を有している。また後塗装による柄付けにおいても加工工程が増えるだけでなく、同時にコスト高になるという課題を有している。
特開平８−２７６５０１号公報 However, the conventional pattern sheet is expensive and has a problem that many processes are required for production. In addition, the patterning by post-coating not only increases the number of processing steps, but also has the problem of increasing costs.
JP-A-8-276501

本発明は上記の従来の問題点に鑑みて発明したものであって、表面に２種以上の意匠柄が現出した柄付きＳＭＣを容易且つ安価に得ることができるＦＲＰの柄付け方法とその成形品を提供することを課題とし、さらに高品質、高強度のＦＲＰ成形品を安価で且つ歩留まりを高くして得ることができるＦＲＰの柄付け方法とその成形品を提供することを課題とするものである。   The present invention has been invented in view of the above-mentioned conventional problems, and an FRP patterning method capable of easily and inexpensively obtaining a patterned SMC having two or more types of design patterns appearing on the surface thereof, and its It is an object to provide a molded product, and further to provide an FRP patterning method capable of obtaining a high-quality, high-strength FRP molded product at a low cost and with a high yield, and to provide the molded product. Is.

前記課題を解決するために本発明に係るＦＲＰの柄付け方法は、ＳＭＣ（シートモールディング・コンパウンド）で構成されるＦＲＰに柄付けするにあたって、少なくとも色が異なった２種以上のＳＭＣ材料シート１を層状に積層してＳＭＣ積層体２を作製する積層工程と、その後、ＳＭＣ積層体２を積層方向Ａと平行な方向に切断することにより、表面に２種以上の意匠柄が現出した平板状の柄付きＳＭＣ３を得る切断工程とを具備することを特徴としている。   In order to solve the above-mentioned problems, the FRP patterning method according to the present invention includes at least two types of SMC material sheets 1 having different colors when patterning an FRP composed of SMC (Sheet Molding Compound). A laminating process for producing the SMC laminate 2 by laminating in layers, and then cutting the SMC laminate 2 in a direction parallel to the laminating direction A, thereby providing a flat plate shape on which two or more design patterns appear on the surface And a cutting step of obtaining a patterned SMC3.

このような構成とすることで、ＳＭＣ材料シート１の積層工程と切断工程とを順次行なうことにより、表面に２種以上の意匠柄が現出した柄付きＳＭＣ３を容易且つ安価に得ることができるようになる。   By adopting such a configuration, by sequentially performing the stacking step and the cutting step of the SMC material sheet 1, it is possible to easily and inexpensively obtain the patterned SMC 3 on which two or more design patterns appear on the surface. It becomes like this.

また、上記切断工程後に、柄付きＳＭＣ３をこれとは別のＳＭＣ材料からなるＳＭＣ基材４の上面に積層すると共に柄付きＳＭＣ３とＳＭＣ基材４との間に不織布５を挟み込んでプレス成形するのが好ましく、この場合、ＳＭＣ基材４によってＦＲＰ成形品６の強度向上を図ることができると共に、不織布５の介在によって、プレス成形時に裏面側のＳＭＣ基材４を構成する樹脂材料が圧力により表面側の柄付きＳＭＣ３の材料に混ざり込んで柄付きＳＭＣ３の最表面まで染み出すようなことを防止できる。   Further, after the cutting step, the patterned SMC 3 is laminated on the upper surface of the SMC base material 4 made of another SMC material, and the nonwoven fabric 5 is sandwiched between the patterned SMC 3 and the SMC base material 4 and press-molded. In this case, the strength of the FRP molded product 6 can be improved by the SMC base material 4, and the resin material constituting the SMC base material 4 on the back side at the time of press molding is caused by pressure due to the interposition of the nonwoven fabric 5. It is possible to prevent the surface of the patterned SMC 3 from being mixed into the material of the surface-side patterned SMC 3 and oozing out to the outermost surface of the patterned SMC 3.

また、上記柄付きＳＭＣ３の厚みをＳＭＣ基材４の厚みよりも薄くすると共に、プレス後の柄付きＳＭＣ３の厚みを３ｍｍ以下にするのが好ましく、この場合、ＦＲＰ成形品６の強度向上に加えて、表面層を構成する薄肉の柄付きＳＭＣ３の意匠柄をより鮮明化できるようになる。   Further, the thickness of the patterned SMC 3 is preferably made thinner than the thickness of the SMC base material 4, and the thickness of the patterned SMC 3 after pressing is preferably 3 mm or less. In this case, in addition to improving the strength of the FRP molded product 6 Thus, the design pattern of the thin patterned SMC 3 constituting the surface layer can be further clarified.

また、上記不織布５の目付けを５０ｇ／ｍ２以上にするのが好ましく、この場合、不織布５の強度を確保でき、ＦＲＰ成形品６の強度向上に寄与できる。 Moreover, it is preferable that the fabric weight of the said nonwoven fabric 5 shall be 50 g / m < 2 > or more, In this case, the intensity | strength of the nonwoven fabric 5 can be ensured and it can contribute to the strength improvement of the FRP molded article 6. FIG.

また本発明に係るＦＲＰ成形品６は、上記記載のいずれかの柄付け方法を用いて製造された柄付きＳＭＣ３により表面層が形成されていることを特徴としている。   In addition, the FRP molded product 6 according to the present invention is characterized in that a surface layer is formed by a patterned SMC 3 manufactured using any of the above-described patterning methods.

本発明に係るＦＲＰの柄付け方法は、従来のような高価なシートを使用することなく、また後加工で柄付け塗装の必要がなく、比較的安価で且つバリエーションに優れた柄付きＳＭＣを得ることができるものである。   The FRP patterning method according to the present invention does not require an expensive sheet as in the prior art, and does not require patterning by post-processing, thereby obtaining a patterned SMC that is relatively inexpensive and excellent in variations. It is something that can be done.

また本発明に係るＦＲＰの柄付け方法は、柄付きＳＭＣを他のＳＭＣ基材及び不織布と共にプレス成形することにより、高品質、高強度のＦＲＰ成形品を安価で且つ歩留まりを高くして得ることができるものである。   In addition, the FRP patterning method according to the present invention is to obtain a high-quality, high-strength FRP molded product at a low cost and with a high yield by press-molding the patterned SMC together with other SMC base materials and nonwoven fabrics. It is something that can be done.

また本発明に係るＦＲＰ成形品は、安価で高品質、さらに高強度で、歩留まりを高くして得ることができるものである。   Moreover, the FRP molded product according to the present invention can be obtained at low cost, high quality, high strength, and high yield.

以下、本発明を添付図面に示す実施形態に基いて説明する。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

本実施形態のＦＲＰ成形品６の表面層は、柄付きＳＭＣ３により形成される。この柄付きＳＭＣ３を製造するにあたっては、積層工程と、切断工程と、プレス工程とを順次行なう。   The surface layer of the FRP molded product 6 of the present embodiment is formed by a patterned SMC 3. In manufacturing this SMC 3 with a handle, a lamination process, a cutting process, and a pressing process are sequentially performed.

本例の積層工程では、図1（ａ）に示すように、異なった厚み（例えば１ｍｍ〜１０ｍｍ）、異なった色の２種類以上のＳＭＣ材料シート１を層状に積層接着して、ＳＭＣ積層体２を作製する。   In the lamination process of this example, as shown in FIG. 1 (a), two or more types of SMC material sheets 1 having different thicknesses (for example, 1 mm to 10 mm) and different colors are laminated and bonded in layers, and an SMC laminate is obtained. 2 is produced.

その後、切断工程に移行して、上記ＳＭＣ積層体２を積層方向Ａと平行な方向、つまり、図１（ａ）の矢印イで示す方向に、例えば３ｍｍ〜７ｍｍ幅で垂直切断する。これにより、図１（ｂ）に示すように、表面に２種以上の意匠柄が現出した所定厚（約３ｍｍ〜７ｍｍ）の平板状の柄付きＳＭＣ３を得る。   Thereafter, the cutting process is performed, and the SMC laminate 2 is vertically cut in a direction parallel to the stacking direction A, that is, a direction indicated by an arrow A in FIG. Thereby, as shown in FIG.1 (b), SMC3 with the flat-plate pattern of the predetermined thickness (about 3 mm-7 mm) in which two or more types of design patterns appeared on the surface is obtained.

その後、図２に示すプレス工程に移行して、上記得られた柄付きＳＭＣ３をこれとは別のＳＭＣ材料からなるＳＭＣ基材４の上面に積層すると共に、柄付きＳＭＣ３とＳＭＣ基材４との間に不織布５を挟み込む。不織布５として、例えばガラス製、樹脂製など多くの材料が使用可能であるが、好ましくは、目付けが５０ｇ／ｍ２以上のポリエステル繊維製の不織布５が望ましい。本例では目付けが６０ｇ／ｍ２以上の白色ポリエステル製の不織布５を用いた。この不織布５を柄付きＳＭＣ３とＳＭＣ基材４との間に挟み込んだ状態で、プレス成形用金型７，８間にセットし、プレス圧４０〜７０ｋｇｆ／ｃｍ２、プレス温度１３０℃〜１５０℃の成形条件で、５分間〜１０分間圧締して、図３に示すように、表面に柄付きＳＭＣ３が現れた平板状の柄付きＦＲＰ成形品６を得る。 Thereafter, the process proceeds to the pressing step shown in FIG. 2, and the obtained patterned SMC 3 is laminated on the upper surface of the SMC base material 4 made of another SMC material, and the patterned SMC 3 and the SMC base material 4 The nonwoven fabric 5 is sandwiched between them. Although many materials, such as glass and a resin, can be used as the nonwoven fabric 5, for example, the nonwoven fabric 5 made of polyester fibers having a basis weight of 50 g / m 2 or more is desirable. In this example, a nonwoven fabric 5 made of white polyester having a basis weight of 60 g / m 2 or more was used. In a state where the nonwoven fabric 5 is sandwiched between the patterned SMC 3 and the SMC base material 4, it is set between the press molding dies 7 and 8, the press pressure is 40 to 70 kgf / cm 2 , the press temperature is 130 ° C. to 150 ° C. The plate-shaped FRP molded product 6 having a flat pattern with a patterned SMC 3 appearing on the surface is obtained as shown in FIG.

しかして、本発明のＦＲＰの柄付け方法によれば、２種以上の色違いのＳＭＣ材料シート１を積層する積層工程と、これを切断する切断工程とによって、色々なバリエーションの柄付きＳＭＣ３を簡易に創出できる。さらに色だけでなく厚みを異ならせることにより、様々な色と厚みの組み合わせによって意匠柄のバリエーションをより多様化することができる。しかも従来のような高価な柄シートの使用や、後塗装工程を行なう必要がないため、製造工程を簡略化できる結果、比較的安価な方法で、柄付きＳＭＣ３を表面層に配置したＦＲＰ成形品６を容易に製造できるものである。   Thus, according to the FRP patterning method of the present invention, various variations of the patterned SMC 3 can be obtained by laminating the two or more kinds of SMC material sheets 1 of different colors and cutting the sheet. Easy to create. Furthermore, by varying not only the color but also the thickness, variations in design patterns can be further diversified by combinations of various colors and thicknesses. Moreover, since there is no need to use an expensive handle sheet as in the prior art or a post-coating process, the manufacturing process can be simplified. As a result, an FRP molded product in which the handle-attached SMC3 is arranged on the surface layer by a relatively inexpensive method. 6 can be manufactured easily.

ここで、上記積層工程において、積層するＳＭＣ材料シート１は、後で切断することを考慮して、フェノール樹脂組成物に混入されるガラス繊維をゼロにするか、或いは混入した場合でも少量の短繊維を混入することが望ましい。この実験結果を以下の表１に示す。   Here, in the above laminating step, the SMC material sheet 1 to be laminated is considered to be cut later, and the glass fiber mixed in the phenol resin composition is reduced to zero, or even when mixed, a small amount of short glass fiber sheet 1 is used. It is desirable to mix fibers. The experimental results are shown in Table 1 below.

Figure 2008155543
Figure 2008155543

上記の表1中において、参考例１（ガラス繊維長２５ｍｍ、２０重量部）、参考例２（ガラス繊維長５ｍｍ、１０重量部）、参考例３（ガラス繊維長３ｍｍ、５重量部）の場合は、いずれも切断工程における切断性が不良で、しかもプレス後の柄付け状態は不良であったが、本実施例１（ガラス繊維長２ｍｍ、２重量部）、及び、本実施例２（ガラス繊維ゼロ）の場合は、いずれも切断工程における切断性がやや良好〜良好であり、さらにプレス後の柄付け状態も共に良好であった。   In Table 1 above, Reference Example 1 (glass fiber length 25 mm, 20 parts by weight), Reference Example 2 (glass fiber length 5 mm, 10 parts by weight), Reference Example 3 (glass fiber length 3 mm, 5 parts by weight) In both cases, the cutting performance in the cutting process was poor, and the patterning state after pressing was poor, but Example 1 (glass fiber length 2 mm, 2 parts by weight) and Example 2 (glass) In the case of zero fiber), the cutting performance in the cutting process was slightly good to good, and the patterning state after pressing was also good.

また本例では、切断工程後のプレス工程において、柄付きＳＭＣ３とＳＭＣ基材４間に目付けが５０ｇ／ｍ２以上のポリエステル繊維製の不織布５を挟み込むことにより、不織布５の強度が確保され、ひいてはＦＲＰ成形品６の強度向上につながる。しかも不織布５の存在によって、プレス成形時に裏面側のＳＭＣ基材４を構成するＳＭＣ材料が圧力により表面側の柄付きＳＭＣ３の材料に混ざり込んで柄付きＳＭＣ３の最表面まで染み出すようなことがなくなり、結果、高品質、高強度のＦＲＰ成形品６を安価で且つ歩留まりを高くして得ることができるものである。 Moreover, in this example, the strength of the nonwoven fabric 5 is ensured by sandwiching the nonwoven fabric 5 made of polyester fiber having a basis weight of 50 g / m 2 or more between the patterned SMC 3 and the SMC base material 4 in the pressing step after the cutting step, As a result, the strength of the FRP molded product 6 is improved. In addition, due to the presence of the nonwoven fabric 5, the SMC material constituting the SMC substrate 4 on the back surface side may be mixed with the material of the patterned SMC 3 on the front surface by pressure and ooze out to the outermost surface of the patterned SMC 3 due to pressure. As a result, a high-quality, high-strength FRP molded product 6 can be obtained at a low cost and with a high yield.

また上記柄付きＳＭＣ３の厚みをＳＭＣ基材４の厚みよりも薄くすると共に、プレス後の柄付きＳＭＣ３の厚みが３ｍｍ以下となるように設定するのが望ましい。より好ましくは、プレス後のＳＭＣ基材４の厚みを５ｍｍ、柄付きＳＭＣ３の厚みを２ｍｍとする。この場合、ＦＲＰ成形品６の強度向上に加えて、表面層を構成する薄肉の柄付きＳＭＣ３の意匠柄をより鮮明化でき、ＦＲＰ成形品６の意匠性をより向上させることができる。   Further, it is desirable to set the thickness of the patterned SMC 3 to be smaller than the thickness of the SMC base material 4 and to set the thickness of the patterned SMC 3 after pressing to 3 mm or less. More preferably, the thickness of the SMC substrate 4 after pressing is 5 mm, and the thickness of the patterned SMC 3 is 2 mm. In this case, in addition to improving the strength of the FRP molded product 6, the design pattern of the thin-walled SMC 3 constituting the surface layer can be made clearer, and the design of the FRP molded product 6 can be further improved.

ところで、柄付きＳＭＣ３の裏面に配置される不織布５の色は、特に制限されるものではないが、表面層の柄付きＳＭＣ３の色が淡色で且つ柄付きＳＭＣ３の厚みを３ｍｍ以下の薄肉にした場合にあっては、濃い色の不織布５を使用すると不織布５の色が透けてしまう可能性がある。そこで、本例では目付けが６０ｇ／ｍ２以上の白色ポリエステル製の不織布５を用いるようにした。また不織布５の色を表面側の柄付きＳＭＣ３と同色にすることによっても、不織布５の色が透けて見えるという不具合をなくすことができる。 By the way, the color of the nonwoven fabric 5 arranged on the back surface of the patterned SMC 3 is not particularly limited, but the color of the patterned SMC 3 on the surface layer is light and the thickness of the patterned SMC 3 is 3 mm or less. In some cases, if the dark-colored nonwoven fabric 5 is used, the color of the nonwoven fabric 5 may be transparent. Therefore, in this example, the white polyester nonwoven fabric 5 having a basis weight of 60 g / m 2 or more was used. Moreover, the trouble that the color of the nonwoven fabric 5 can be seen through can also be eliminated by making the color of the nonwoven fabric 5 the same as that of the SMC 3 with the handle on the surface side.

（ａ）は本発明の一実施形態のＳＭＣを積層する積層工程及び切断工程の説明図であり、（ｂ）は切断工程により得られた柄付きＳＭＣの一部省略した側面断面図である。(A) is explanatory drawing of the lamination process which laminates | stacks SMC of one Embodiment of this invention, and a cutting process, (b) is side sectional drawing which abbreviate | omitted one part of SMC with a handle | steering_wheel obtained by the cutting process. 同上のプレス工程の説明図である。It is explanatory drawing of a press process same as the above. （ａ）は同上のＦＲＰの柄付け方法により得られたＦＲＰ成形品の側面断面図、（ｂ）は斜視図である。(A) is side surface sectional drawing of the FRP molded product obtained by the FRP patterning method same as the above, (b) is a perspective view.

符号の説明Explanation of symbols

１ ＳＭＣ材料シート
２ ＳＭＣ積層体
３ 柄付きＳＭＣ
４ ＳＭＣ基材
５ 不織布
６ ＦＲＰ成形品
Ａ 積層方向 1 SMC material sheet 2 SMC laminate 3 SMC with handle
4 SMC base material 5 Nonwoven fabric 6 FRP molded product A Lamination direction

Claims (5)

ＳＭＣ（シートモールディング・コンパウンド）で構成されるＦＲＰの柄付け方法であって、少なくとも色が異なった２種以上のＳＭＣ材料シートを層状に積層してＳＭＣ積層体を作製する積層工程と、その後、ＳＭＣ積層体を積層方向と平行な方向に切断することにより、表面に２種以上の意匠柄が現出した平板状の柄付きＳＭＣを得る切断工程とを具備することを特徴とするＦＲＰの柄付け方法。   FRP patterning method composed of SMC (Sheet Molding Compound), a laminating step of laminating two or more kinds of SMC material sheets having different colors at least in layers, and thereafter, an SMC laminate, A pattern of FRP characterized by comprising a cutting step of obtaining an SMC with a flat pattern having two or more kinds of design patterns appearing on the surface by cutting the SMC laminate in a direction parallel to the lamination direction. Attaching method. 上記切断工程後に、柄付きＳＭＣをこれとは別のＳＭＣ材料からなるＳＭＣ基材の上面に積層すると共に柄付きＳＭＣとＳＭＣ基材との間に不織布を挟み込んでプレス成形することを特徴とする請求項１記載のＦＲＰの柄付け方法。   After the cutting step, the patterned SMC is laminated on the upper surface of an SMC base material made of another SMC material, and a non-woven fabric is sandwiched between the patterned SMC and the SMC base material and press-molded. The patterning method of FRP according to claim 1. 上記柄付きＳＭＣの厚みをＳＭＣ基材の厚みよりも薄くすると共に、プレス後の柄付きＳＭＣの厚みを３ｍｍ以下にすることを特徴とする請求項２記載のＦＲＰの柄付け方法。   The patterning method for FRP according to claim 2, wherein the thickness of the patterned SMC is made thinner than the thickness of the SMC substrate, and the thickness of the patterned SMC after pressing is 3 mm or less. 上記不織布の目付けを５０ｇ／ｍ２以上にすることを特徴とする請求項２又は３記載のＦＲＰの柄付け方法。 4. The patterning method for FRP according to claim 2 , wherein the basis weight of the nonwoven fabric is 50 g / m 2 or more. 上記請求項１乃至４のいずれか一項に記載の柄付け方法を用いて製造された柄付きＳＭＣにより表面層が形成されていることを特徴とするＦＲＰ成形品。
An FRP molded product, wherein a surface layer is formed by a patterned SMC manufactured using the patterning method according to any one of claims 1 to 4.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074152A (en) * 2013-10-08 2015-04-20 パナソニックＩｐマネジメント株式会社 Manufacturing method of smc molding
CN106132658A (en) * 2014-04-04 2016-11-16 松下知识产权经营株式会社 The manufacture method of SMC products formed
JP2018034388A (en) * 2016-08-30 2018-03-08 正織興業株式会社 Molded article using fabric and manufacturing method therefor

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JPS6094316A (en) * 1983-10-28 1985-05-27 Matsushita Electric Works Ltd Manufacture of artificial merble
JP2001205651A (en) * 2000-01-27 2001-07-31 Sekisui Chem Co Ltd Decorative molded article

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JPS6094316A (en) * 1983-10-28 1985-05-27 Matsushita Electric Works Ltd Manufacture of artificial merble
JP2001205651A (en) * 2000-01-27 2001-07-31 Sekisui Chem Co Ltd Decorative molded article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074152A (en) * 2013-10-08 2015-04-20 パナソニックＩｐマネジメント株式会社 Manufacturing method of smc molding
CN106132658A (en) * 2014-04-04 2016-11-16 松下知识产权经营株式会社 The manufacture method of SMC products formed
JP2018034388A (en) * 2016-08-30 2018-03-08 正織興業株式会社 Molded article using fabric and manufacturing method therefor

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