JP6681985B2 - 光沢度の調節が容易な表面処理金属材及びその製造方法 - Google Patents
光沢度の調節が容易な表面処理金属材及びその製造方法 Download PDFInfo
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- JP6681985B2 JP6681985B2 JP2018527738A JP2018527738A JP6681985B2 JP 6681985 B2 JP6681985 B2 JP 6681985B2 JP 2018527738 A JP2018527738 A JP 2018527738A JP 2018527738 A JP2018527738 A JP 2018527738A JP 6681985 B2 JP6681985 B2 JP 6681985B2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 7
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 7
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
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- 239000011701 zinc Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 5
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Description
上記オリゴマーは、ウレタンアクリレート、エポキシアクリレート、及びポリエステルアクリレートからなる群から選択された一つ以上であることができる。
上記金属材は、冷延鋼板、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム合金めっき鋼板、ステンレス鋼板、アルミニウム板材、マグネシウム板材、亜鉛板材、及びチタン亜鉛板材からなる群から選択された一つであることができる。
上記紫外線硬化は、0.1〜60秒間行われることができる。
上記噴射は、インクジェットヘッド、スプレーガン、及び液滴噴射装置からなる群から選択された一つ以上を用いて行われることができる。
上記紫外線硬化型コーティング組成物は、オリゴマー40〜70重量%、光重合性モノマー20〜59重量%、及び光開始剤1〜10重量%を含むことができる。
上記金属材は、冷延鋼板、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム合金めっき鋼板、ステンレス鋼板、アルミニウム板材、マグネシウム板材、亜鉛板材、及びチタン亜鉛板材からなる群から選択された一つであることができる。
上記表面処理金属材の製造方法は、金属材の上部に紫外線硬化型コーティング組成物を噴射して複数の突起で構成されるコーティング層を形成する段階を含み、上記突起は、体積が3〜16ピコリットルであり、上記突起は、上記金属材1mm2当たり5〜610個の密度で配列されることを特徴とする。
6官能基ポリエステルアクリレートオリゴマー20重量%、2官能基ウレタンアクリレートオリゴマー25重量%、テトラヒドロフルフリルアクリレート(THFA)20重量%、イソボルニルアクリレート30重量%、RUNTECURE 1103 5重量%からなる紫外線硬化型コーティング組成物を、インクジェット印刷装置の各ヘッドに連結されたノズルに注入した。上記ノズルに注入されたコーティング組成物を、ヘッドを介してステンレス鋼板の上部に噴射した。上記鋼板の上部に噴射されたコーティング組成物は液滴として鋼板の表面に着地し、複数の突起で構成されるコーティング層を形成した。上記コーティング層を30秒間紫外線硬化させた後、60度基準の光沢測定計で光沢度を測定し、塗膜密着力を試験した。上記突起の体積、密度、塗膜密着力、及び光沢度を、下記表1に示す。
特に、突起の体積が3〜5ピコリットルであり、突起の密度が57〜608個/mm2の場合には、調節可能な光沢度の範囲がさらに広いことが確認できた。突起の体積が3ピコリットルである実施例1〜10は、最小91から最大145まで光沢度を調節することができ、突起の体積が5ピコリットルである実施例11〜14は、最小95から最大142まで光沢度を調節できることが確認できた。
一方、突起の体積が3〜16ピコリットル及び突起の密度が5〜610個/mm2を満たさない比較例2〜8は、コーティング層が形成されていない比較例1と同様の光沢度を有し、消光効果が示されなかったことが確認できた。
6官能基ポリエステルアクリレートオリゴマー20重量%、2官能基ウレタンアクリレートオリゴマー25重量%、テトラヒドロフルフリルアクリレート(THFA)20重量%、RUNTECURE 1103 5重量%、イソボルニルアクリレート、及び消光剤であるシリカ30重量%を含む紫外線硬化型塗料を製造した後、ステンレス鋼板の上部にロールコーティング法を用いてコーティング層を形成した。上記コーティング層を30秒間紫外線硬化させた後、60度基準の光沢測定計で光沢度を測定し、塗膜密着力を試験した。上記シリカの含有量、平均粒度、塗膜密着力、及び光沢度を、下記表2に示す。
Claims (10)
- 金属材と、
前記金属材の少なくとも一面に形成され、紫外線硬化型コーティング組成物が硬化した複数の突起と、を含み、
前記突起は、体積が3〜16ピコリットルであり、
前記突起は、前記金属材1mm2当たり5〜610個の密度で配列される、光沢度の調節が容易な表面処理金属材。 - 前記紫外線硬化型コーティング組成物は、オリゴマー40〜70重量%、光重合性モノマー20〜59重量%、及び光開始剤1〜10重量%を含む、請求項1に記載の光沢度の調節が容易な表面処理金属材。
- 前記オリゴマーは、ウレタンアクリレート、エポキシアクリレート、及びポリエステルアクリレートからなる群から選択された一つ以上である、請求項2に記載の光沢度の調節が容易な表面処理金属材。
- 前記金属材は、冷延鋼板、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム合金めっき鋼板、ステンレス鋼板、アルミニウム板材、マグネシウム板材、亜鉛板材、及びチタン亜鉛板材からなる群から選択された一つである、請求項1に記載の光沢度の調節が容易な表面処理金属材。
- 金属材の上部に紫外線硬化型コーティング組成物を噴射して複数の突起を形成する段階を含み、
前記突起は、体積が3〜16ピコリットルであり、
前記突起は、前記金属材1mm2当たり5〜610個の密度で配列される、光沢度の調節が容易な表面処理金属材の製造方法。 - 前記突起を紫外線硬化する段階をさらに含む、請求項5に記載の光沢度の調節が容易な表面処理金属材の製造方法。
- 前記紫外線硬化は、0.1〜60秒間行われる、請求項6に記載の光沢度の調節が容易な表面処理金属材の製造方法。
- 前記噴射は、インクジェットヘッド、スプレーガン、及び超音波噴射装置からなる群から選択された一つ以上を用いて行われる、請求項5に記載の光沢度の調節が容易な表面処理金属材の製造方法。
- 前記紫外線硬化型コーティング組成物は、オリゴマー40〜70重量%、光重合性モノマー20〜59重量%、及び光開始剤1〜10重量%を含む、請求項5に記載の光沢度の調節が容易な表面処理金属材の製造方法。
- 前記金属材は、冷延鋼板、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム合金めっき鋼板、ステンレス鋼板、アルミニウム板材、マグネシウム板材、亜鉛板材、及びチタン亜鉛板材からなる群から選択された一つである、請求項5に記載の光沢度の調節が容易な表面処理金属材の製造方法。
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