JPH01301316A - In-mold molding having mat surface and manufacture thereof - Google Patents
In-mold molding having mat surface and manufacture thereofInfo
- Publication number
- JPH01301316A JPH01301316A JP63135184A JP13518488A JPH01301316A JP H01301316 A JPH01301316 A JP H01301316A JP 63135184 A JP63135184 A JP 63135184A JP 13518488 A JP13518488 A JP 13518488A JP H01301316 A JPH01301316 A JP H01301316A
- Authority
- JP
- Japan
- Prior art keywords
- matte
- molded product
- mold
- layer
- transfer material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 17
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 239000010409 thin film Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 51
- 239000012790 adhesive layer Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 6
- 238000007740 vapor deposition Methods 0.000 description 6
- 229920001893 acrylonitrile styrene Polymers 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001227 electron beam curing Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
Abstract
Description
この発明は、いわゆるインモールド成型において、表面
傷付き性に強く、汚れのつきにくい艶消し効果に優れた
艶消し表面を有するインモールド成型品とその製造方法
に関するものである。The present invention relates to an in-mold molded product having a matte surface that is resistant to surface scratches, resistant to stains, and has an excellent matte effect in so-called in-mold molding, and a method for manufacturing the same.
従来、艶消し表面を有する成型品を製造する方法として
は、次のような方法があった。
（１）成型品表面を部分的にマスキングし、艶消し塗料
あるいは表面光沢塗料をスプレーコーティングして部分
的に艶消し部と光沢部とを有する製品を得る方法、この
方法において、成型品表面に文字や図柄などの意匠が必
要な場合は、さらに後工程でスクリーン印刷やタンポ印
刷あるいはホットスタンプなどを行なう必要があった。
また、複雑な凹凸形状の場合は、塗料が回り込まないよ
うにマスキングを行うのが難しく、たいへん時間のかか
る工程となり、実質上大量生産に適用するのは不可能で
ある。したがって、形状的にも平板に近い単純な形状の
ものに限られていた。
（２）艶消し部分と光沢部分とを別々の部品で構成する
方法、たとえば、一方は塩化ビニルシ一トや金属部品あ
るいは樹脂成型品にて光沢を存する部品を作り、他方は
表面にシボ加工を施した金型を使用して艶消し処理を行
った成型品を用意し、上記別部品を接合して部分的に艶
消し部と光沢部とを存する製品を得る方法、したがって
、この方法も形状的に単純なものに限定され、デザイン
上の自由度に限界があり、また生産コストも高くつくも
のであった。
そこで、インモールド成型法によって艶消し表面を有す
る成型品を得る方法が行なわれている。
すなわち、艶消し効果を現出する微細な凹凸を形成する
ことのできるマット転写材を、射出成型用の金型内の所
定の位置に固定し、金型を閉じ、金型内に樹脂を射出し
て成型品の形成と同時に成型品の表面に上記転写材を密
着させ、成型品から転写材の基体シートを剥離して得る
方法である。
マット転写材は、サンドブラストやケミカルエツチング
などの加工により表面が艶消し状態にされた基体シート
上に、剥離層や図柄層・接着層などが順次形成されたも
の、あるいは部表面を有するシートに体質顔料などの添
加物が混合され微細な凹凸表面を呈する凹凸層が印刷法
により形成された基体シート上に、剥離層・図柄層・接
着層などが順次積層されたものであり、このような層構
成のマット転写材の転写層を成型品に接着したのち、基
体シートあるいは基体シートと凹凸層を剥離・除去する
ことにより基体シートまたは凹凸層の凹凸が剥離層に写
し取られ、剥離層の表面に微細な凹凸が形成され、イン
モールド成型品の表面が艶消し状態になる。Conventionally, there have been the following methods for manufacturing molded products having a matte surface. (1) A method in which the surface of the molded product is partially masked and spray coated with matte paint or surface glossy paint to obtain a product that has partially matte areas and glossy parts. If designs such as letters or designs were required, it was necessary to perform screen printing, pad printing, or hot stamping in subsequent processes. Furthermore, in the case of complex uneven shapes, it is difficult to mask the paint to prevent it from getting around, resulting in a very time-consuming process, which is virtually impossible to apply to mass production. Therefore, the shape has been limited to simple shapes similar to flat plates. (2) A method of constructing the matte part and the glossy part as separate parts. For example, one part is made of a vinyl chloride sheet, a metal part, or a resin molded part to have a glossy part, and the other part has a textured surface. This method also involves preparing a molded product that has been subjected to a matte treatment using a mold that has been applied, and then joining the above-mentioned separate parts to obtain a product that partially has a matte part and a glossy part. It was limited to simple designs, had limited design freedom, and was expensive to produce. Therefore, a method of obtaining a molded product having a matte surface by an in-mold molding method has been used. In other words, a matte transfer material that can form minute irregularities that create a matte effect is fixed in a predetermined position inside an injection mold, the mold is closed, and resin is injected into the mold. In this method, the transfer material is brought into close contact with the surface of the molded product at the same time as the molded product is formed, and the base sheet of the transfer material is peeled off from the molded product. Matte transfer materials are those in which a release layer, pattern layer, adhesive layer, etc. are sequentially formed on a base sheet whose surface has been made matte by processing such as sandblasting or chemical etching, or a sheet with a partial surface that has a texture. A release layer, a pattern layer, an adhesive layer, etc. are laminated in sequence on a base sheet on which an uneven layer, which is a mixture of pigments and other additives and has a finely uneven surface, is formed by a printing method. After adhering the transfer layer of the matte transfer material of the composition to the molded product, by peeling and removing the base sheet or the base sheet and the uneven layer, the unevenness of the base sheet or the uneven layer is transferred to the release layer, and the surface of the release layer is Fine irregularities are formed on the surface of the in-mold product, and the surface of the in-mold product becomes matte.
しかし、上記のインモールド成型法によって得られた成
型品は、表面の艶消し部分を爪などで引っかくいわゆる
表面傷付き性において、簡単にスジが入るような耐擦傷
性の劣るものであった。また、手でされると指紋が艶消
し表面に残って取れにくくなるという問題もあった。こ
れは艶消し部分の微細な凹凸による光の散乱程度が、手
の皮脂などの汚れが付着することにより艶消し程度が変
化するためと考えられる。つまり、すりガラスの凹凸面
に水をつけると、水がつかなかった部分と艶消し状態に
差が生じるのと同様の現象である。
したがって、従来、艶消し意匠を設けたいというデザイ
ン的要望がありながら、汚れの付着により艶消し字が損
なわれるので、人の手がよく触れる製品には使用できな
いものであった。
また、エツチングなどの手段によりシボ加工を施したイ
ンモールド成型用金型と、マット加工を施していない通
常の転写材とを用いて得たインサート成型品の表面は、
金型の微細な凹凸が転写材の厚みによって吸収されるた
め、十分な艶消し効果を得ることができない。
この発明は以上のような問題点を解決し、表面傷付き性
に強く、汚れのつきにくい艶消し効果に優れた艶消し表
面を有するインモールド成型品とその製造方法を従供す
ることを目的とする。
［！ｉ題を解決するための手段］
この発明は、以上の目的を達成するために、次のように
構成した。すなわち、この発明の艶消し表面を有するイ
ンモールド成型品は、プラスチック成型品の凹凸表面上
に、さらに微細な凹凸を有する転写層が形成されるよう
に構成した。
また、この発明のインモールド成型品の製造方法は、艶
消し効果を現出する微細な凹凸を形成することのできる
マット転写材と、キャビティ部にマット転写材よりも大
きい凹凸のマット加工が施された金型とを用い、上記マ
ット転写材と上記金型内に固定し、樹脂を射出してイン
モールド成型を行なうように構成した。
図面を参照しながらこの発明をさらに詳しく説明する。
第１図はこの発明の艶消し表面を有するインモールド成
型品を示す断面図、第２〜３図はこの発明の艶消し表面
を有するインモールド成型品の製造方法を示す断面図で
ある。第４〜５図はこの発明に使用するマット転写材の
断面図である。１はプラスチック成型品、２は転写層、
３・４は凹凸、５は金型、６はキャビティ部、７はマッ
ト転写材、８は基体シート、９は剥離層、１０は図柄層
、１１は接着層をそれぞれ示す。
マット転写材７は、基体シート８上に剥離層９・図柄層
１０・接着層１１などが順次形成されたものであり、被
転写体であるインモールド成型品の表面に艶消しの図柄
や機能性薄膜などを形成することができる。
マット転写材７の基体シート８としては、表面に艶消し
状の細かな凹凸４を有するものを用いる。
たとえば、ポリエチレンテレフタレートやポリプロピレ
ン・ポリエチレン・ナイロン・セロハンなどのプラスチ
ックフィルムあるいはこれらと紙との複合フィルムなど
通常の転写材の基体シート８として用いられるものの上
に、これに固着する凹凸層を設けたもの、具体的にはた
とえば、シリカ・炭酸カルシウム・ポリエチレンワック
ス・ガラスピーズなどの微細な粒径の微粉末を含む樹脂
層を印刷法などによりコーティングしたものを使用する
とよい、この場合の樹脂層としては、可塑性樹脂以外に
ウレタン、メラミン、エポキシなどの硬化性樹脂、メチ
ルメタアクリレートなどの紫外線または電子線硬化性樹
脂を用いてもよい、また、上記したプラスチックフィル
ムの成膜時、体質顔料などの微粉末を練りこんだものを
基体シート８として使用してもよい、あるいは、前記の
プラスチックフィルムの表面をサンドブラスト法やケミ
カルエツチング法などの物理的手段により凹凸４を設け
たものを基体シート８として使用してもよい、なお、マ
ット部分は、基体シート８の全面とする以外に、部分的
に形成して、図柄や成型品の形状などのデザインと組み
合わせるようにしてマット部分と艶部分とを表現するよ
うにしてもよい。
剥離Ｎ９は、基体シート８上に全面に設けられ、転写後
は基体シート８から剥離し、基体シート８表面に形成さ
れた凹凸に対応して剥離層９表面に基体シート８と逆パ
ターンの凹凸４が形成されるものである。また、転写後
には被転写体の表面になるため、転写層２を保護する機
能をも有するものである。剥離層９はロールコート法や
、グラビア印刷法・スクリーン印刷法などの通常の印刷
方法により、基体シート８上に形成される。剥離層９と
しては、アクリル系樹脂・ビニル系樹脂などの熱可塑性
樹脂が使用できる。また、保護層としての役目を十分果
たさせるためには、ウレタン系樹脂・エポキシ系樹脂な
どの熱硬化性樹脂、メチルメタアクリレートなどの紫外
線または電子線硬化性樹脂を用いてもよい。
接着層１１は、マット転写材７の転写層２を被転写体に
固着させるためのものである。接着層１１としては、被
転写体であるプラスチック成型品ｌの素材に適した感熱
性あるいは感圧性の樹脂を適宜使用する。たとえば、被
転写体がＡＳ樹脂の場合はアクリル系樹脂やビニル系樹
脂を、ポリプロピレンの場合は塩素化ポリプロピレン系
樹脂やエチレン酢酸ビニル共重合樹脂などを用いるとよ
い。
また、必要に応じて剥離層９と接着層１１との間に、任
意の図柄層ｌＯや金属蒸着層などが全面または部分的に
設けられる０図柄層１０は、顔料または染料および各種
添加剤を含有する樹脂よりなるインキを用い、グラビア
印刷法、スクリーン印刷法などの通常の印刷方法により
形成される。
金属蒸着層は、剥離層９表面に形成される凹凸４に対応
して艶消し感を呈するようにするために設けられるもの
である。金属蒸着層は、アルミニウムやクロム・ニッケ
ルなどの金属を、真空蒸着法・イオンブレーティング法
・スパッタリンーグ法などによって設けるとよい。
また必要に応じて、剥離層９と金属蒸着層の間に、金属
蒸着適性を上げるための前アンカー層を設けてもよい。
この場合、凹凸４を形成する層を前アンカー層の下に設
けると、艶消し効果の小さいものができる。また必要に
応じて、金属蒸着層と接着層１１の間に、両者の固着力
を増すための後アンカー層を設けてもよい。
なお、剥離層９、図柄層１０、凹凸層、金属蒸着層、接
着層１１及び前アンカー層、後アンカー層の相互の界面
での固着性は優れたものを選択するのが好ましい。
インモールド成型用金型５は、可動型と固定型とからな
り、可動型側にマット転写材７を固定できるよう構成さ
れており、両金型５を閉じることによってキャビティ部
６を形成する。キャビティ部６のマット転写材７が接す
る可動型製品面には、インモールド成型品表面に艶消し
表面を形成するための凹凸３が形成される。この凹凸３
の大きさは、マット転写材７によって形成される凹凸４
よりも大きくする。キャビティ部６のこの面には成型品
の樹脂が直接接するのではな（、マット転写材７が挟み
込まれるので、あまり細かい凹凸を形成すると、成型品
に凹凸表面を形成することができない。
上記したマット転写材７と金型５とを用いてインモール
ド成型を行う、まず、金型５の所定の位置にマット転写
材７を固定する。この際、艶消し表面を部分的に形成す
る場合は、マット転写材７のマット部分と金型５のマッ
ト部分とが一致するようにする。ついで、金型５を閉じ
、樹脂を射出する。樹脂の冷却後、金型５を開いてイン
モールド成型品を取り出す。インモールド成型品からマ
ット転写材７の基体シート８を剥すと、艶消し表面を有
するインモールド成型品が得られる。
したがって、このインモールド成型品の樹脂部分は、金
型５により凹凸３が形成され、さらにその凹凸３に積層
された転写Ｎ２にはさらに微細な凹凸４が形成されてい
る。However, the molded product obtained by the above-mentioned in-mold molding method had poor scratch resistance, as it easily became streaky when the matte surface was scratched with a fingernail or the like. There was also the problem that fingerprints remained on the matte surface and were difficult to remove when done by hand. This is thought to be because the degree of light scattering due to the fine irregularities of the matte portion changes as dirt such as sebum from the hands adheres to the matte portion. In other words, this is the same phenomenon as when you apply water to the uneven surface of frosted glass, there is a difference in the matte state from the part that did not receive water. Therefore, although there has been a design desire to provide a matte design, the matte characters are damaged by the adhesion of dirt, so they cannot be used in products that are frequently touched by human hands. In addition, the surface of an insert molded product obtained using an in-mold molding die that has been textured by means such as etching and a normal transfer material that has not been subjected to matte processing is
Since the fine irregularities of the mold are absorbed by the thickness of the transfer material, a sufficient matting effect cannot be obtained. The purpose of the present invention is to solve the above-mentioned problems and provide an in-mold molded product having a matte surface that is resistant to scratches and has an excellent matte effect that does not easily attract dirt, and a method for manufacturing the same. do. [! Means for Solving Problem i] In order to achieve the above object, the present invention is configured as follows. That is, the in-mold molded product having a matte surface of the present invention is configured such that a transfer layer having finer unevenness is formed on the uneven surface of the plastic molded product. In addition, the method for manufacturing an in-mold molded product of the present invention uses a matte transfer material that can form fine irregularities that produce a matte effect, and a matte processing that has larger irregularities than the matte transfer material in the cavity portion. The matte transfer material and the mold were fixed in the mold, and resin was injected to perform in-mold molding. The present invention will be explained in more detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an in-mold molded product having a matte surface according to the present invention, and FIGS. 2 and 3 are cross-sectional views showing a method for manufacturing an in-mold molded product having a matte surface according to the present invention. 4 and 5 are cross-sectional views of the matte transfer material used in the present invention. 1 is a plastic molded product, 2 is a transfer layer,
3 and 4 are unevenness, 5 is a mold, 6 is a cavity portion, 7 is a matte transfer material, 8 is a base sheet, 9 is a release layer, 10 is a pattern layer, and 11 is an adhesive layer, respectively. The matte transfer material 7 is one in which a release layer 9, a pattern layer 10, an adhesive layer 11, etc. are sequentially formed on a base sheet 8, and a matte pattern or function is applied to the surface of an in-mold molded product that is a transfer target. It is possible to form a transparent thin film. As the base sheet 8 of the matte transfer material 7, one having fine matte irregularities 4 on the surface is used. For example, a plastic film such as polyethylene terephthalate, polypropylene, polyethylene, nylon, or cellophane, or a composite film of these and paper, which is used as the base sheet 8 of a normal transfer material, is provided with an uneven layer that adheres to the base sheet 8. Specifically, for example, it is preferable to use a resin layer coated with a resin layer containing fine powder such as silica, calcium carbonate, polyethylene wax, glass beads, etc. by a printing method, etc. In this case, the resin layer is In addition to plastic resins, curable resins such as urethane, melamine, and epoxy, and ultraviolet or electron beam curable resins such as methyl methacrylate may be used. A material kneaded with powder may be used as the base sheet 8, or a surface of the above-mentioned plastic film provided with irregularities 4 by physical means such as sandblasting or chemical etching may be used as the base sheet 8. In addition, the matte part may be formed not only on the entire surface of the base sheet 8, but also partially, and combined with the design such as the pattern or the shape of the molded product to express the matte part and the glossy part. You may also do so. The release layer N9 is provided on the entire surface of the base sheet 8, and is peeled off from the base sheet 8 after transfer, and provides unevenness in the opposite pattern to the base sheet 8 on the surface of the release layer 9 corresponding to the unevenness formed on the surface of the base sheet 8. 4 is formed. Furthermore, since it becomes the surface of the object to be transferred after transfer, it also has the function of protecting the transfer layer 2. The release layer 9 is formed on the base sheet 8 by a normal printing method such as a roll coating method, a gravure printing method, or a screen printing method. As the release layer 9, thermoplastic resins such as acrylic resins and vinyl resins can be used. Furthermore, in order to sufficiently fulfill the role of a protective layer, thermosetting resins such as urethane resins and epoxy resins, and ultraviolet or electron beam curing resins such as methyl methacrylate may be used. The adhesive layer 11 is for fixing the transfer layer 2 of the mat transfer material 7 to the object to be transferred. As the adhesive layer 11, a heat-sensitive or pressure-sensitive resin suitable for the material of the plastic molded product 1, which is the object to be transferred, is used as appropriate. For example, if the material to be transferred is an AS resin, an acrylic resin or a vinyl resin may be used, and if the material is polypropylene, a chlorinated polypropylene resin or an ethylene-vinyl acetate copolymer resin may be used. Further, the pattern layer 10, in which an arbitrary pattern layer 10, a metal vapor deposition layer, etc. is provided on the entire surface or in part between the release layer 9 and the adhesive layer 11, is made of pigments or dyes and various additives. It is formed by a normal printing method such as a gravure printing method or a screen printing method using an ink containing a resin. The metal vapor deposited layer is provided to provide a matte feel corresponding to the unevenness 4 formed on the surface of the release layer 9. The metal vapor deposition layer is preferably formed of metal such as aluminum, chromium, nickel, etc. by a vacuum vapor deposition method, an ion blasting method, a sputtering method, or the like. Further, if necessary, a pre-anchor layer may be provided between the release layer 9 and the metal vapor deposition layer in order to improve suitability for metal vapor deposition. In this case, if the layer forming the unevenness 4 is provided below the front anchor layer, a less matte effect can be obtained. Further, if necessary, a post-anchor layer may be provided between the metal vapor deposition layer and the adhesive layer 11 to increase the adhesion strength between the two. In addition, it is preferable to select the peeling layer 9, the pattern layer 10, the uneven layer, the metal vapor deposited layer, the adhesive layer 11, and the front anchor layer and the rear anchor layer that have excellent adhesion at their mutual interfaces. The in-mold molding die 5 is composed of a movable die and a fixed die, and is configured such that the mat transfer material 7 can be fixed to the movable die side, and a cavity portion 6 is formed by closing both the die molds 5. On the surface of the movable product in contact with the matte transfer material 7 of the cavity portion 6, unevenness 3 is formed to form a matte surface on the surface of the in-mold molded product. This unevenness 3
The size of the unevenness 4 formed by the matte transfer material 7 is
Make it bigger than. The resin of the molded product will not be in direct contact with this surface of the cavity portion 6 (the matte transfer material 7 will be sandwiched therein), so if too fine irregularities are formed, it will not be possible to form an uneven surface on the molded product. In-mold molding is performed using the matte transfer material 7 and the mold 5. First, the matte transfer material 7 is fixed in a predetermined position of the mold 5. At this time, when partially forming a matte surface, , the matte portion of the matte transfer material 7 and the matte portion of the mold 5 are made to match.Then, the mold 5 is closed and resin is injected.After the resin has cooled, the mold 5 is opened and in-mold molding is performed. When the base sheet 8 of the matte transfer material 7 is peeled off from the in-mold molded product, an in-mold molded product with a matte surface is obtained. Asperities 3 are formed, and further finer asperities 4 are formed on the transfer N2 laminated on the asperities 3.
【作用］
この発明に用いるマット転写材７は、凹凸表面を有する
基体シート８上に、前記基体シート８から剥離可能な剥
離Ｎ９が設けられ、接着層１１が全面に設けられるよう
に構成されている。
金型５にはマット転写材７によって形成される凹凸４よ
りも大きな凹凸３が形成されている。
したがって、インモールド成型品の金型５によって形成
される凹凸３表面上に、さらに微細な凹凸４がマット転
写材７によって形成される。
マット加工した金型５にマット転写材７をセットして射
出成型すると、基体シート８自体の厚みにより金型５の
深度の浅い凹凸には基体シート８が沿わず、凸部の先端
が丸い形状の凹凸３となる。
表面傷付き性に対しては、凸部の先端が丸いためマット
表面全体が傷つくことはないので、きわめて傷つきにく
い艶消し表面となる。また、マット転写材７によって形
成された転写Ｎ２の表面は、きわめて微細な凹凸４表面
となっており、艶消し効果に優れた表面となる。
【実施例】
尖施拠工
深度的０．３〜５０ａｍのマット加工が施されたインモ
ールド成型用金型内に、マット転写材を固定し、アクリ
ロニトリルスチレン（ＡＳ）樹脂を使用して、下記の射
出条件でインモールド成型を行った。得られた成型品は
、表面傷付き性に強く、汚れのつきにくい艶消し効果に
優れたものであった。
射出条件（日本製鋼所社製ＪＣ１５０ＳＡ使用）・金型
温度 ５０℃
・シリンダー温度 ２２０°Ｃ
・射出圧力 １，１９０ｋｇ／ｃｓ＋”・保圧力
８５０ｋｇ／ｃｍ”・スクリュー回転数
５５ｒｐａ＋なお、射出速度は本成型機の最高速度
であった。
１旅１
深度的０．３〜５０μｍのマット加工が部分的に施され
たインモールド成型用金型内に、艶消し程度が２段階に
設けられた厚さ３８μｍの基体シートを有するマット転
写材を固定し、ＡＳ樹脂を使用してインモールド成型を
行った。得られた成型品は部分的に艶消し効果が２段階
あり、かつ光沢部分を有する表面物性と意匠効果に優れ
たものであった。
実崖班主
深度的５０〜３００μｍのマット加工がエツチングによ
り施したインモールド成型用金型内に、艶消し程度を２
段階に設けられた厚さ３８μｍの基体シートを有するマ
ット転写材を固定し、＾Ｓ樹脂を使用してインモールド
成型を行った。得られた成型品は部分的に艶消し効果が
２段階あり、かつ光沢部分を有する表面物性と意匠効果
に優れたものであった。[Function] The matte transfer material 7 used in the present invention is configured such that a peeling layer N9 that can be peeled off from the base sheet 8 is provided on the base sheet 8 having an uneven surface, and an adhesive layer 11 is provided on the entire surface. There is. The mold 5 has projections and depressions 3 larger than the projections and depressions 4 formed by the matte transfer material 7. Therefore, even finer asperities 4 are formed by the matte transfer material 7 on the surface of the asperities 3 formed by the mold 5 of the in-mold molded product. When the matte transfer material 7 is set in the matte mold 5 and injection molded, the base sheet 8 does not follow the shallow unevenness of the mold 5 due to the thickness of the base sheet 8 itself, and the tips of the convex parts are rounded. The unevenness becomes 3. Regarding surface scratching, since the tips of the convex portions are rounded, the entire mat surface is not scratched, resulting in a matte surface that is extremely scratch resistant. Further, the surface of the transfer N2 formed by the matte transfer material 7 has extremely fine irregularities 4, resulting in a surface with an excellent matte effect. [Example] A mat transfer material was fixed in an in-mold mold with a matte finish of 0.3 to 50 am in depth, and the following was performed using acrylonitrile styrene (AS) resin. In-mold molding was performed under the following injection conditions. The molded product obtained was highly resistant to surface scratches and had an excellent matte effect that made it resistant to stains. Injection conditions (using JC150SA made by Japan Steel Works)・Mold temperature 50℃・Cylinder temperature 220℃・Injection pressure 1,190kg/cs+”・Holding pressure 850kg/cm”・Screw rotation speed
The injection speed was 55 rpa+, which was the maximum speed of this molding machine. 1 Journey 1 A matte transfer material having a 38 μm thick base sheet with two levels of matte level inside an in-mold mold that has been partially matted with a depth of 0.3 to 50 μm. was fixed and in-mold molded using AS resin. The molded product thus obtained had two levels of partially matte effect and had glossy parts, which had excellent surface properties and design effects. A matte finish with a depth of 50 to 300 μm is applied to the in-mold mold by etching.
A matte transfer material having a base sheet with a thickness of 38 μm provided in stages was fixed, and in-mold molding was performed using ^S resin. The molded product thus obtained had two levels of partially matte effect and had glossy parts, which had excellent surface properties and design effects.
この発明の艶消し表面を有するインモールド成型品は、
プラスチック成型品の凹凸表面上に、さらに微細な凹凸
を有する転写層が形成されるように構成されているので
、表面傷付き性に強く、汚れのつきにくい艶消し効果に
優れた艶消し表面を有するインモールド成型品である。
また、この発明の艶消し表面を有するインモールド成型
品の製造方法は、艶消し効果を現出する微細な凹凸を形
成することのできるマット転写材と、キャビティ部にマ
ット転写材よりも大きい凹凸のマット加工が施された金
型とを用い、上記マット転写材を上記金型内に固定し、
樹脂を射出してインモールド成型を行なうように構成さ
れているので、上記のインモールド成型品を容易に得る
ことができる。The in-mold molded product with a matte surface of this invention is
The structure is such that a transfer layer with even finer unevenness is formed on the uneven surface of the plastic molded product, creating a matte surface that is resistant to scratches and has an excellent matte effect that is resistant to dirt. It is an in-mold molded product. In addition, the method for producing an in-mold molded product having a matte surface according to the present invention uses a matte transfer material capable of forming minute irregularities that produce a matte effect, and a cavity portion with irregularities larger than the matte transfer material. Fixing the matte transfer material in the mold using a matte-treated mold,
Since it is configured to perform in-mold molding by injecting resin, the above-mentioned in-mold molded product can be easily obtained.
第１図はこの発明の艶消し表面を有するインモールド成
型品を示す断面図、第２〜３図はこの発明の艶消し表面
を有するインモールド成型品の製造方法を示す断面図で
ある。第４〜５図はこの発明に使用するマット転写材の
断面図である。
１・・・プラスチック成型品、２・・・転写層、３・４
・・・凹凸、５・・・金型、６・・・キャビティ部、７
・・・マット転写材、８・・・基体シート、９・・・剥
離層、１０・・・図柄層、１１・・・接着層。
特許出願人 日本写真印刷株式会社FIG. 1 is a cross-sectional view showing an in-mold molded product having a matte surface according to the present invention, and FIGS. 2 and 3 are cross-sectional views showing a method for manufacturing an in-mold molded product having a matte surface according to the present invention. 4 and 5 are cross-sectional views of the matte transfer material used in the present invention. 1... Plastic molded product, 2... Transfer layer, 3/4
... Unevenness, 5 ... Mold, 6 ... Cavity part, 7
... Matt transfer material, 8 ... Base sheet, 9 ... Peeling layer, 10 ... Design layer, 11 ... Adhesive layer. Patent applicant Nissha Printing Co., Ltd.
Claims (1)
さらに微細な凹凸（４）を有する転写層（２）が形成さ
れていることを特徴とする艶消し表面を有するインモー
ルド成型品。 ２、艶消し効果を現出する微細な凹凸（４）を形成する
ことのできるマット転写材（７）と、キャビティ部（６
）にマット転写材（７）よりも大きい凹凸（３）のマッ
ト加工が施された金型（５）とを用い、上記マット転写
材（７）を上記金型（５）内に固定し、樹脂を射出して
インモールド成型を行なうことを特徴とする艶消し表面
を有するインモールド成型品の製造方法。[Claims] 1. On the surface of the unevenness (3) of the plastic molded product (1),
An in-mold molded product having a matte surface, further comprising a transfer layer (2) having fine irregularities (4). 2. A matte transfer material (7) that can form fine irregularities (4) that create a matte effect, and a cavity part (6).
) with a mold (5) that has been subjected to matte processing with irregularities (3) larger than the matte transfer material (7), and fixing the matte transfer material (7) in the mold (5), A method for manufacturing an in-mold molded product having a matte surface, which comprises performing in-mold molding by injecting a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63135184A JPH01301316A (en) | 1988-05-31 | 1988-05-31 | In-mold molding having mat surface and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63135184A JPH01301316A (en) | 1988-05-31 | 1988-05-31 | In-mold molding having mat surface and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01301316A true JPH01301316A (en) | 1989-12-05 |
| JPH0542937B2 JPH0542937B2 (en) | 1993-06-30 |
Family
ID=15145801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63135184A Granted JPH01301316A (en) | 1988-05-31 | 1988-05-31 | In-mold molding having mat surface and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01301316A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191022A (en) * | 1990-11-27 | 1992-07-09 | Nissha Printing Co Ltd | Meter panel and manufacture thereof |
| JPH0531755A (en) * | 1991-07-17 | 1993-02-09 | Kouno Plast Kogyo Kk | Manufacture of three-dimensional molded material surface processed with decorative film |
| JPH07276426A (en) * | 1994-04-11 | 1995-10-24 | Aisin Chem Co Ltd | Manufacture of design film connecting molded piece |
| US5639536A (en) * | 1989-12-01 | 1997-06-17 | Nissha Printing Co., Ltd. | Method of forming improved matted surface-finished article by use of transfer member, and article formed thereby |
| JPH10180796A (en) * | 1996-12-26 | 1998-07-07 | Nissha Printing Co Ltd | Manufacture of molding-simultaneous foil-decorated product having decorated embossed character part |
| JPH11204949A (en) * | 1998-01-13 | 1999-07-30 | Fujitsu Ltd | Electronic apparatus cabinet structure |
| US6276913B1 (en) * | 1999-02-05 | 2001-08-21 | Mitsui High-Tech Inc. | Mold for resin sealing |
| JP2006001021A (en) * | 2004-06-15 | 2006-01-05 | Nakagawa Sangyo Kk | Appearance part and its manufacturing method |
| WO2012046531A1 (en) * | 2010-10-05 | 2012-04-12 | 株式会社カネカ | Decorative resin sheet, and molded resin article and process for production thereof |
| JP2013075387A (en) * | 2011-09-29 | 2013-04-25 | Dainippon Printing Co Ltd | Decorative sheet and decorative molded article |
| JP2019142201A (en) * | 2018-02-23 | 2019-08-29 | 大日本印刷株式会社 | Forming sheet and manufacturing method of forming sheet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883478A (en) | 2009-05-04 | 2010-11-10 | 深圳富泰宏精密工业有限公司 | Electronic device shell as well as mould and method for manufacturing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109718A (en) * | 1980-02-05 | 1981-08-31 | Kitai Seisakusho:Kk | Molding of product in continuous length having decorative pattern on group of recessed and protruded parts on surface thereof |
| JPS63224918A (en) * | 1987-03-13 | 1988-09-20 | Toyoda Gosei Co Ltd | Manufacture of molded product with pattern |
| JPH01295812A (en) * | 1988-05-25 | 1989-11-29 | Ado Union Kenkyusho:Kk | Patterned injection molded product and manufacture thereof |
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|---|---|---|---|---|
| JPS57150551A (en) * | 1981-03-12 | 1982-09-17 | Yoshida Kogyo Kk <Ykk> | Unevenly decorated patterned container and its manufacture |
| JPS59187811A (en) * | 1983-03-10 | 1984-10-25 | Nissha Printing Co Ltd | Preparation of resin molded piece with delustered surface |
| JPS59202832A (en) * | 1983-05-04 | 1984-11-16 | Dainippon Printing Co Ltd | Foil decorating process by vertical injection molding and foil decorating device thereby |
| JPS60264214A (en) * | 1984-06-14 | 1985-12-27 | Toppan Printing Co Ltd | Manufacture of molded article having uneven surface |
| JPS60264213A (en) * | 1984-06-14 | 1985-12-27 | Toppan Printing Co Ltd | Manufacture of molded article having uneven surface |
| JPS62256620A (en) * | 1986-04-30 | 1987-11-09 | Dainippon Printing Co Ltd | Method for molding resin product |
| JPS6391215A (en) * | 1986-10-06 | 1988-04-21 | Nissei Plastics Ind Co | Transfer molding method |
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1988
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109718A (en) * | 1980-02-05 | 1981-08-31 | Kitai Seisakusho:Kk | Molding of product in continuous length having decorative pattern on group of recessed and protruded parts on surface thereof |
| JPS63224918A (en) * | 1987-03-13 | 1988-09-20 | Toyoda Gosei Co Ltd | Manufacture of molded product with pattern |
| JPH01295812A (en) * | 1988-05-25 | 1989-11-29 | Ado Union Kenkyusho:Kk | Patterned injection molded product and manufacture thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5639536A (en) * | 1989-12-01 | 1997-06-17 | Nissha Printing Co., Ltd. | Method of forming improved matted surface-finished article by use of transfer member, and article formed thereby |
| JPH04191022A (en) * | 1990-11-27 | 1992-07-09 | Nissha Printing Co Ltd | Meter panel and manufacture thereof |
| JPH0763987B2 (en) * | 1990-11-27 | 1995-07-12 | 日本写真印刷株式会社 | Meter panel and manufacturing method thereof |
| JPH0531755A (en) * | 1991-07-17 | 1993-02-09 | Kouno Plast Kogyo Kk | Manufacture of three-dimensional molded material surface processed with decorative film |
| JPH07276426A (en) * | 1994-04-11 | 1995-10-24 | Aisin Chem Co Ltd | Manufacture of design film connecting molded piece |
| JP2531499B2 (en) * | 1994-04-11 | 1996-09-04 | アイシン化工株式会社 | Manufacturing method for design film-bonded molded products |
| JPH10180796A (en) * | 1996-12-26 | 1998-07-07 | Nissha Printing Co Ltd | Manufacture of molding-simultaneous foil-decorated product having decorated embossed character part |
| JPH11204949A (en) * | 1998-01-13 | 1999-07-30 | Fujitsu Ltd | Electronic apparatus cabinet structure |
| US6276913B1 (en) * | 1999-02-05 | 2001-08-21 | Mitsui High-Tech Inc. | Mold for resin sealing |
| JP2006001021A (en) * | 2004-06-15 | 2006-01-05 | Nakagawa Sangyo Kk | Appearance part and its manufacturing method |
| WO2012046531A1 (en) * | 2010-10-05 | 2012-04-12 | 株式会社カネカ | Decorative resin sheet, and molded resin article and process for production thereof |
| CN103180118A (en) * | 2010-10-05 | 2013-06-26 | 株式会社钟化 | Decorative resin sheet, and molded resin article and process for production thereof |
| JP5269255B2 (en) * | 2010-10-05 | 2013-08-21 | 株式会社カネカ | Decorative resin sheet, resin molded body, and method for producing the same |
| JP2013176996A (en) * | 2010-10-05 | 2013-09-09 | Kaneka Corp | Decorative resin sheet, and resin molded article and process for production thereof |
| US9434096B2 (en) | 2010-10-05 | 2016-09-06 | Kaneka Corporation | Decorative resin sheet, and molded resin article and process for production thereof |
| JP2013075387A (en) * | 2011-09-29 | 2013-04-25 | Dainippon Printing Co Ltd | Decorative sheet and decorative molded article |
| JP2019142201A (en) * | 2018-02-23 | 2019-08-29 | 大日本印刷株式会社 | Forming sheet and manufacturing method of forming sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542937B2 (en) | 1993-06-30 |
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