JPS63227307A - Formation of coating on plastic molded item - Google Patents
Formation of coating on plastic molded itemInfo
- Publication number
- JPS63227307A JPS63227307A JP62060216A JP6021687A JPS63227307A JP S63227307 A JPS63227307 A JP S63227307A JP 62060216 A JP62060216 A JP 62060216A JP 6021687 A JP6021687 A JP 6021687A JP S63227307 A JPS63227307 A JP S63227307A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- ultraviolet
- plastic
- coating
- primer layer
- 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.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000003973 paint Substances 0.000 claims abstract description 61
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 16
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 239000003960 organic solvent Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 abstract description 2
- 239000004925 Acrylic resin Substances 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- 210000004209 hair Anatomy 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 229920000298 Cellophane Polymers 0.000 description 5
- -1 2-phenoxyethyl Chemical group 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 3
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 3
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- RZVINYQDSSQUKO-UHFFFAOYSA-N 2-phenoxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC1=CC=CC=C1 RZVINYQDSSQUKO-UHFFFAOYSA-N 0.000 description 1
- LVGFPWDANALGOY-UHFFFAOYSA-N 8-methylnonyl prop-2-enoate Chemical compound CC(C)CCCCCCCOC(=O)C=C LVGFPWDANALGOY-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 239000004419 Panlite Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- XLLIQLLCWZCATF-UHFFFAOYSA-N ethylene glycol monomethyl ether acetate Natural products COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004335 litholrubine BK Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- FZUGPQWGEGAKET-UHFFFAOYSA-N parbenate Chemical compound CCOC(=O)C1=CC=C(N(C)C)C=C1 FZUGPQWGEGAKET-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は成型プラスチック表面に塗膜を形成する方法に
関し、さらに詳しくはインモールド工法により紫外線硬
化型塗料のハードコート層を形成するのに好適な塗膜を
形成する方法に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a method of forming a coating film on the surface of a molded plastic, and more specifically, to a method of forming a hard coat layer of an ultraviolet curable paint using an in-mold method. The present invention relates to a method of forming a coating film suitable for forming a coating film.
（従来の技術）
プラスチック材料は、軽量で加工性に優れているため、
射出成型、中空成型等の成型品として種々の分野で使用
されている。(Conventional technology) Plastic materials are lightweight and have excellent processability, so
It is used in various fields as molded products such as injection molding and hollow molding.
しかしながら、プラスチック材料は柔らかく成型品とし
た場合、成型品表面に物理的接触によるキズが付きやす
いという欠点を有しており、その通用範囲が限定されて
いるのが実情であった。プラスチック成型品の表面にキ
ズ付きを防止するために有機溶剤型塗料や水性塗料を塗
装することが知られているが、十分な塗膜硬度と接着性
および経済性を兼ね備た塗料は得られていない。However, when plastic materials are soft and molded, they have the disadvantage that the surface of the molded product is easily scratched by physical contact, and the actual situation is that the scope of its applicability is limited. It is known that organic solvent-based paints or water-based paints are applied to the surfaces of plastic molded products to prevent scratches, but paints that have sufficient film hardness, adhesion, and economic efficiency have not been obtained. Not yet.
紫外線硬化型塗料はハードコート層を形成するのに通し
た塗料系であるが、プラスチック成型品に通用すると、
プラスチック表面への接着性に関し紫外線硬化性モノマ
ーもしくはオリゴマーの選択の余地が小さい。また、紫
外線硬化型塗料に有機溶剤を含有させるとプラスチック
成型品表面が侵されてしまっり、高圧水銀ランプの放出
する大量の熱のためプラスチック成型品が変形したりす
ることがあった。UV-curable paint is a paint system that is used to form a hard coat layer, but if it is used for plastic molded products,
There is little room for selection of UV-curable monomers or oligomers in terms of adhesion to plastic surfaces. Furthermore, when an organic solvent is contained in an ultraviolet curable paint, the surface of the plastic molded product is attacked, and the plastic molded product may be deformed due to the large amount of heat emitted by the high-pressure mercury lamp.
（発明が解決しようとする問題点）
本発明はプラスチック成型品にハードコート層を直接塗
布する上での欠点、すなわち、プラスチック表面との密
着性、有機溶剤によるプラスチック表面の溶解、熱によ
る変形、塗装後の塵の付着などの欠点を一挙に解決した
ものである。(Problems to be Solved by the Invention) The present invention solves the disadvantages of directly applying a hard coat layer to a plastic molded product, such as poor adhesion to the plastic surface, dissolution of the plastic surface by organic solvents, deformation due to heat, This solves all problems such as dust adhesion after painting.
（問題点を解決するための手段）
すなわち１本発明は、プラスチック成型用金型の成型面
に紫外線硬化型塗料を塗布し、紫外線を照射して硬化さ
せた後、該硬化塗膜面上にプライマー層を設け、ついで
プラスチックを成型することからなるプラスチック成型
品に塗膜を形成する方法である。(Means for Solving the Problems) That is, 1 the present invention is to apply an ultraviolet curable paint to the molding surface of a plastic mold, cure it by irradiating it with ultraviolet rays, and then apply a coating on the cured coating surface. This is a method of forming a coating film on a plastic molded product by providing a primer layer and then molding the plastic.
本発明の方法によれば、プラスチック成型用金型の内面
に、まず紫外線硬化塗料を塗布する。塗料を施す場所は
金型の内面全部であってもよいし９部分的であってもよ
い０次いで、紫外線を照射して塗料を硬化させる。According to the method of the present invention, an ultraviolet curing paint is first applied to the inner surface of a plastic mold. The paint may be applied to the entire inner surface of the mold or only partially.Next, the paint is cured by irradiation with ultraviolet rays.
本発明において使用される紫外線硬化型塗料としては、
紫外線硬化型オリゴマー、紫外線硬化型上ツマー２光開
始剤等の成分からなり、必要に応じて。The ultraviolet curable paint used in the present invention includes:
Consists of components such as an ultraviolet curable oligomer and an ultraviolet curable upper 2 photoinitiator, as required.
有機溶剤を含む紫外線硬化型塗料が望ましい。UV-curable paints containing organic solvents are preferred.
紫外線硬化型オリゴマーとしては、２−フェノキシエチ
ル（メタ）アクリレート、シクロヘキシル（メタ）アク
リレート、イソデシルアクリレート等の単官能性上ツマ
−、トリメチロールプロパントリ （メタ）アクリレー
ト トリプロピレングリコールジ（メタ）アクリレート
、ポリエチレングリコール４００ジ（メタ）アクリレー
ト、ジペンタエリスリトールヘキサ（メタ）アクリレー
ト等の多官能性上ツマー等がある。Examples of UV-curable oligomers include monofunctional polymers such as 2-phenoxyethyl (meth)acrylate, cyclohexyl (meth)acrylate, and isodecyl acrylate, trimethylolpropane tri(meth)acrylate, and tripropylene glycol di(meth)acrylate. , polyethylene glycol 400 di(meth)acrylate, and dipentaerythritol hexa(meth)acrylate.
光開始剤としては、ベンゾフェノン、ベンジルジメチル
ケタール、１−ヒドロキシシクロへキシルフェニルケト
ン等があり、塗料中の０．１〜５重量％の範囲で使用す
る。これらの光開始剤に併用して、トリメチルアミン、
ｐ−ジメチルアミノ安息香酸エチルエステル等の増感剤
を適宜添加することもできる。Examples of photoinitiators include benzophenone, benzyl dimethyl ketal, and 1-hydroxycyclohexylphenyl ketone, which are used in an amount of 0.1 to 5% by weight in the paint. In combination with these photoinitiators, trimethylamine,
A sensitizer such as p-dimethylaminobenzoic acid ethyl ester may also be added as appropriate.
また、必要に応じて有機溶剤を用いることもできる。Moreover, an organic solvent can also be used if necessary.
有機溶剤としては、酢酸エチル、メチルエチルケトン、
イソプロピルアルコール、トルエン、キシレン。Examples of organic solvents include ethyl acetate, methyl ethyl ketone,
Isopropyl alcohol, toluene, xylene.
酢酸ブチル、メチルイソブチルケトン、セロソルブアセ
テートエチルセロソルブ等がある。Examples include butyl acetate, methyl isobutyl ketone, cellosolve acetate and ethyl cellosolve.
本発明では紫外線硬化型塗料は必ずしもハードコート層
を形成するものでなくても良い。In the present invention, the ultraviolet curable paint does not necessarily have to form a hard coat layer.
本発明における紫外線硬化塗料には顔料等の着色剤９体
質顔料等の充填剤、消泡剤等の添加剤等を配合して用い
ることができる。The ultraviolet curable coating material of the present invention may contain colorants such as pigments, fillers such as extender pigments, additives such as antifoaming agents, and the like.
上記の操作により硬化した紫外線硬化塗膜の上にプライ
マー層を設ける。プライマー層は紫外線硬化塗膜のプラ
スチックに対する密着性向上のために使用される。プラ
イマー層としては、アクリル系樹脂塗料、ウレタン系樹
脂塗料、ポリエステル系樹脂塗料、ビニル系樹脂塗料、
アルキド系樹脂塗料のような常温乾燥型塗料が好ましい
。この塗料によるプライマー層の厚さは１〜５μが好ま
しい。A primer layer is provided on the ultraviolet-cured coating film cured by the above operation. The primer layer is used to improve the adhesion of UV-cured coatings to plastics. As a primer layer, acrylic resin paint, urethane resin paint, polyester resin paint, vinyl resin paint,
A room temperature drying type paint such as an alkyd resin paint is preferred. The thickness of the primer layer formed by this paint is preferably 1 to 5 microns.
本発明においてプライマー層としてシランカップリング
剤も使用することができる。シランカップリング剤は有
機溶剤溶液として用い、紫外線硬化型塗料の硬化した塗
膜に塗布乾燥すれば良い。A silane coupling agent can also be used as the primer layer in the present invention. The silane coupling agent may be used as an organic solvent solution, applied to a cured coating film of an ultraviolet curable coating material, and dried.
紫外線硬化型塗料の硬化塗膜とプライマー層を一体とし
てインモールドコーティングした金型を用いてプラスチ
ック材料を成型加工する。使用される成型用プラスチッ
ク材料としては、ポリウレタン、ポリスチレン、ポリカ
ーボネート、ポリオレフィン。Plastic materials are molded using a mold that is in-mold coated with a cured UV-curable paint and a primer layer. The plastic materials used for molding include polyurethane, polystyrene, polycarbonate, and polyolefin.
ＡＢＳ樹脂、ポリエステル等の熱可塑性樹脂がある。There are thermoplastic resins such as ABS resin and polyester.
本発明に係わる成型方法は射出成型が好ましいが。The molding method according to the present invention is preferably injection molding.
中空成型等の他の成型方法であっても良い。Other molding methods such as hollow molding may also be used.
（実施例）
実施例１
下記処方により紫外線硬化型ハードコート塗料（ＡＩ）
とプライマー塗料（Ｂ１）を調製した。(Example) Example 1 Ultraviolet curable hard coat paint (AI) with the following formulation
and a primer paint (B1) was prepared.
塗料（Ａ１）
ウレタンアクリレート（三井東圧化学
株式会社製オレスターＲＡ−１３５３）３０ ％２．
２−ジメトキシ−２−フェニルア
セトフェノン ０．５％酢酸
エチル ３０ ％トルエン
１５ ％イソプロピルアル
コール １５ ％セロソルブアセテート
９．５％塗料（Ｂ１）
−液型リニア−ポリウレタン樹脂溶液
（三井東圧化学株式会社製オレスター
ＮＬ２５３２） ３０ ％ト
ルエン ２０ ％イソプロピ
ルアルコール ２５ ％メチルエチルケト
ン ２０ ％キシレン
５ ％２５℃に調温した金型の内面に
塗料（Ａ１）をスプレーガンにて均一に塗布し、ヘアー
ドライヤーを用いて溶剤を除去し、さらに高圧水銀ラン
プ（８０Ｗ ／ ｃｍ ）からの紫外線を３秒間照射し
て硬化さそた。Paint (A1) Urethane acrylate (Orestar RA-1353 manufactured by Mitsui Toatsu Chemical Co., Ltd.) 30%2.
2-dimethoxy-2-phenylacetophenone 0.5% ethyl acetate 30% toluene
15% isopropyl alcohol 15% cellosolve acetate
9.5% paint (B1) - Liquid type linear polyurethane resin solution (Orestar NL2532 manufactured by Mitsui Toatsu Chemical Co., Ltd.) 30% Toluene 20% Isopropyl alcohol 25% Methyl ethyl ketone 20% Xylene
5% Paint (A1) was uniformly applied to the inner surface of the mold at a temperature of 25°C using a spray gun, the solvent was removed using a hair dryer, and ultraviolet rays from a high-pressure mercury lamp (80 W/cm ) were applied. Cure by irradiating for 3 seconds.
しかる後に塗料（Ｂ１）をスプレーガンにて塗料（ＡＩ
）の塗膜の上に重ねて塗布し、ヘアードライヤーを用い
て溶剤を除去した。After that, paint (AI) is applied with paint (B1) using a spray gun.
) and the solvent was removed using a hair dryer.
上記の操作によってインモールドコーティングした金型
を使用して熱可塑性ポリウレタンエラストマー（日本ニ
ラストン株式会社製ニラストンＥ−１８０）を射出成型
して取り出した。A thermoplastic polyurethane elastomer (Nilaston E-180 manufactured by Nippon Nilaston Co., Ltd.) was injection molded using a mold coated with in-mold coating by the above procedure, and then taken out.
作成した成型品の塗膜はポリウレタンに強固に付着して
おり、ゴバン目セロハンテープ剥離試験で１００／１０
０であった。また、成型品の表面をスチールウール（＃
ＬＯＯ）で強く摩擦しても全（傷が付かなかった。The coating film of the molded product was firmly adhered to the polyurethane, and it was rated 100/10 in the cellophane tape peel test.
It was 0. Also, coat the surface of the molded product with steel wool (#
Even with strong friction with LOO), there were no scratches.
比較例１
上記塗料（ＡＩ）を用いて実施例１と同様の操作にて硬
化させた０次いでプライマー塗料を施さない他は実施例
１と同様の操作によりポリウレタンの成型品を得た。作
成した成型品の塗膜のゴバン目セロハンテープ剥離試験
は０／１００であり、付着性は不良であった。Comparative Example 1 A polyurethane molded product was obtained using the above paint (AI) and curing in the same manner as in Example 1.Then, a polyurethane molded product was obtained in the same manner as in Example 1, except that no primer paint was applied. A cellophane tape peel test of the coating film of the produced molded product was 0/100, and the adhesion was poor.
実施例２
下記処方により紫外線硬化型塗料（Ａ２）とプライマー
塗料（Ｂ２）を調製した。Example 2 An ultraviolet curable paint (A2) and a primer paint (B2) were prepared according to the following formulations.
塗料（Ａ２）
アルキル変性ジペンタエリスリトール
トリアクリレート（日本化薬株式会社製カヤランドＤ−
３３０） ２０ ％２−フェノキシ
エチルアクリレート ５ ％２．２−ジメトキシ−
２−フェニルアセトフェノン
０．５％トルエン
４０ ％メチルエチルケトン ２０
％酢酸イソブチル １４．５％
塗料（Ｂ２）
主剤
アクリルポリオール樹脂溶液（三井東圧化学株式会社製
オレスターＱ−１６４−ＮＬ２５３２）
３０ ％トルエン
２５ ％メチルエチルケトン
２５ ％酢酸エチル １５
％メチルイソブチルケトン ５ ％硬
化剤
イソホロンジイソシアネート ７０ ％キシレ
ン １０ ％セロソルブア
セテート １０ ％酢酸イソブチル
１０ ％塗料（Ｂ２）は使用直前に
上記主剤および硬化剤を１００部／１５部（重量部）の
割合に混合して用いた。Paint (A2) Alkyl-modified dipentaerythritol triacrylate (Kayaland D- manufactured by Nippon Kayaku Co., Ltd.)
330) 20% 2-phenoxyethyl acrylate 5% 2.2-dimethoxy-
2-phenylacetophenone
0.5% toluene
40% methyl ethyl ketone 20
%isobutyl acetate 14.5%
Paint (B2) Main acrylic polyol resin solution (Orestar Q-164-NL2532 manufactured by Mitsui Toatsu Chemical Co., Ltd.)
30% toluene
25% methyl ethyl ketone
25% ethyl acetate 15
% Methyl Isobutyl Ketone 5% Curing Agent Isophorone Diisocyanate 70% Xylene 10% Cellosolve Acetate 10% Isobutyl Acetate
The 10% paint (B2) was prepared by mixing the above-mentioned main agent and curing agent in a ratio of 100 parts/15 parts (parts by weight) immediately before use.
１００℃に調温した鋳鉄製金型の内面に塗料（２Ａ）を
スプレーガンにて均一に塗布し、ヘアードライヤーを用
いて溶剤を除去し、さらに高圧水銀ランプ（８０Ｗ／ｅ
ｌｌ）からの紫外線を照射して硬化させた。しかる後に
塗料（Ｂ２）をスプレーガンにて硬化塗膜の上に重ねて
塗布し、ヘアードライヤーを用いて溶剤を除去した。Paint (2A) was uniformly applied to the inner surface of a cast iron mold whose temperature was controlled to 100°C using a spray gun, the solvent was removed using a hair dryer, and a high-pressure mercury lamp (80W/e
It was cured by irradiation with ultraviolet rays from ll). Thereafter, paint (B2) was applied over the cured film using a spray gun, and the solvent was removed using a hair dryer.
上記の操作によってインモールドコーティングした金型
を使用してポリカーボネート（帝人化成株式会社製パン
ライトＬ−１２２５）を射出成型して取り出した。Polycarbonate (Panlite L-1225, manufactured by Teijin Kasei Ltd.) was injection molded using a mold coated with in-mold coating by the above procedure, and then taken out.
作成した成型品の塗膜はポリカーボネートに強固に付着
しており、ゴバン目セロハンテープ試験で１００／１０
０であった。The coating film of the molded product that was created firmly adheres to the polycarbonate, and the score was 100/10 in the cellophane tape test.
It was 0.
比較例２
上記塗料（Ａ２）を用いて実施例２と同様の操作にて硬
化させた。次いでプライマー塗料を施さない他は実施例
２と同様に操作によりポリカーボネートの成型品を得た
。作成した成型品の塗膜のゴバン目セロハンテープ剥離
試験はＯ／１００であり、付着性は不良であった。Comparative Example 2 The above coating material (A2) was cured in the same manner as in Example 2. Next, a molded polycarbonate product was obtained in the same manner as in Example 2 except that no primer paint was applied. A cellophane tape peel test of the coating film of the produced molded product was O/100, and the adhesion was poor.
実施例３
下記処方により紫外線硬化型塗料（Ａ３）とプライマー
塗料（Ｂ３）を調製した。Example 3 An ultraviolet curable paint (A3) and a primer paint (B3) were prepared according to the following formulations.
塗料（Ａ３）
エチレンオキサイド変性ビスフェノールＡジアクリレー
ト（新中村化学工業株式会社製ＮＫエステルＡ−ＢＰＥ
−４） ２５％トリメチロールプロパントリアクリ
レート ５％２．２−ジメトキシ−２−フェニルアセト
フェノン １％トル
エン ４０％メチルエチ
ルケトン ２０％酢酸イソブチル
９％塗料（Ｂ３）
Ｎ−β−（アミノエチル）−γ−アミノプロピルトリメ
トキシシラン ０．１％メタノール
８０ ％イソプロピルアルコール
１９．９％５０℃に調温した鋳鉄製金型の
内面に塗料（Ａ３）をスプレーガンにて均一に塗布し、
ヘアードライヤーを用いて溶剤を除去し、さらに高圧水
銀ランプを用いて紫外線を３秒間照射して硬化させた。Paint (A3) Ethylene oxide-modified bisphenol A diacrylate (NK ester A-BPE manufactured by Shin-Nakamura Chemical Co., Ltd.)
-4) 25% trimethylolpropane triacrylate 5% 2.2-dimethoxy-2-phenylacetophenone 1% toluene 40% methyl ethyl ketone 20% isobutyl acetate
9% paint (B3) N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane 0.1% methanol
80% isopropyl alcohol
19.9% Paint (A3) was evenly applied to the inner surface of a cast iron mold whose temperature was controlled to 50℃ using a spray gun.
The solvent was removed using a hair dryer, and ultraviolet rays were irradiated for 3 seconds using a high-pressure mercury lamp for curing.
しかる後に塗料（Ｂ３）をスプレーガンにて硬化塗膜の
上に重ねて塗布し、ヘアードライヤーを用いて溶剤を除
去した。Thereafter, paint (B3) was applied over the cured film using a spray gun, and the solvent was removed using a hair dryer.
上記の操作によってインモールドコーティングした金型
を使用してポリスチレン（電気化学工業株式会社製デン
カスチロールＧＰ−１）を射出成型して取り出した。Polystyrene (Denka Styrol GP-1 manufactured by Denki Kagaku Kogyo Co., Ltd.) was injection molded using a mold coated with in-mold coating by the above procedure, and then taken out.
作成した成型品の塗膜はポリスチレンに強固に付着して
おり、ゴバン目セロハンテープ試験で１００／１００で
あった。The coating film of the produced molded product adhered firmly to the polystyrene, and was 100/100 in the cellophane tape test.
本発明の塗膜形成方法は、紫外線硬化した塗膜とプライ
マー層とをインモールドコーティングしているために、
紫外線硬化塗料の組成を限定されないで。Since the coating film forming method of the present invention involves in-mold coating of an ultraviolet-cured coating film and a primer layer,
There are no restrictions on the composition of UV-curable paints.
紫外線硬化塗膜により強固に被覆されたプラスチック成
型品を得ることができる。したがって、紫外線硬化塗料
をハードコート層を形成し得るような組成のものである
場合１本発明は特に有用である。It is possible to obtain a plastic molded product that is strongly coated with an ultraviolet-cured coating film. Therefore, the present invention is particularly useful when the ultraviolet curable paint has a composition capable of forming a hard coat layer.
Claims (1)
料を塗布し、紫外線を照射して硬化させた後、該硬化塗
膜面上にプライマー層を設け、ついでプラスチックを成
型することからなるプラスチック成型品に塗膜を形成す
る方法。 ２、紫外線硬化型塗料がハードコート層形成用塗料であ
る特許請求の範囲第１項記載の塗膜を形成する方法。 ３、プライマー層が常温乾燥型塗料である特許請求の範
囲第１項記載の塗膜を形成する方法。 ４、プライマー層がシランカップリング剤である特許請
求の範囲第１項記載の塗膜を形成する方法。[Claims] 1. After applying an ultraviolet curable paint to the molding surface of a plastic mold and curing it by irradiating it with ultraviolet rays, a primer layer is provided on the cured coating surface, and then the plastic is coated. A method of forming a coating film on plastic molded products. 2. The method for forming a coating film according to claim 1, wherein the ultraviolet curable coating is a coating for forming a hard coat layer. 3. The method for forming a coating film according to claim 1, wherein the primer layer is a paint that dries at room temperature. 4. The method for forming a coating film according to claim 1, wherein the primer layer is a silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62060216A JPS63227307A (en) | 1987-03-17 | 1987-03-17 | Formation of coating on plastic molded item |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62060216A JPS63227307A (en) | 1987-03-17 | 1987-03-17 | Formation of coating on plastic molded item |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63227307A true JPS63227307A (en) | 1988-09-21 |
Family
ID=13135747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62060216A Pending JPS63227307A (en) | 1987-03-17 | 1987-03-17 | Formation of coating on plastic molded item |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63227307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008296591A (en) * | 2008-07-30 | 2008-12-11 | Kuraray Co Ltd | Pressure-sensitive transfer material, method for production thereof, and transfer article |
| JP2009529595A (en) * | 2006-03-15 | 2009-08-20 | フォテラー・ラックファブリック・ゲーエムベーハー・ウント・コンパニ・カーゲー | Varnish for surface coating of shaped articles |
-
1987
- 1987-03-17 JP JP62060216A patent/JPS63227307A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009529595A (en) * | 2006-03-15 | 2009-08-20 | フォテラー・ラックファブリック・ゲーエムベーハー・ウント・コンパニ・カーゲー | Varnish for surface coating of shaped articles |
| JP2008296591A (en) * | 2008-07-30 | 2008-12-11 | Kuraray Co Ltd | Pressure-sensitive transfer material, method for production thereof, and transfer article |
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