JP5965701B2 - 傷つきにくい調理器具およびその製造方法 - Google Patents
傷つきにくい調理器具およびその製造方法 Download PDFInfo
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- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
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Description
‐本質的に球状フィラーを含まないゾル‐ゲルコーティングの第1層であって、基部の外面を覆う第1層と、
‐前記球状フィラーを含むゾル‐ゲルコーティングの第2層であって、前記第1層を完全に覆う第2層とを、基部から連続的に含んでもよい。
a)食物を受けるのに適した内面と熱源に近接して配置されることを意図される外面とを有する基部を備える調理器具の最終形状を有する基材を設けるステップ;
b)少なくとも1つの金属アルコキシドのゾル‐ゲル前駆体を含む水性組成物を作成するステップ;
c)水と、酸性または塩基性触媒とを導入することによって前記ゾル‐ゲル前駆体を加水分解して、その後の縮合反応がアルコール形成を誘導してゾル‐ゲル組成物を得るステップ;
d)前記加水分解‐縮合ステップc)にて生成されたアルコールを部分的にまたは完全に除去し、除去されたアルコールをグリコールまたはテルベン誘導体によって置き換えて改良されたゾル‐ゲル組成物を得るステップ;
e)ゾル‐ゲル組成物にセルロースを加えて粘度を増加し、0.5Pa.s.から5Pa.s.までの間(すなわち、5ポアズから50ポアズまでの間)の粘度を有する流動性ペースト状の濃いゾル‐ゲル組成物を得るステップ;
f)ゾル‐ゲル組成物(または流動性ペースト)に球状金属フィラーを加え、濃く且つ混入されたゾル‐ゲル組成物を得るステップ;
g)濡れた状態で少なくとも20μmの厚さを有する少なくとも1層の濃く且つ混入されたゾル‐ゲル組成物を、基材の外面全体にスクリーン印刷によって付加するステップ;および、
h)180℃から350℃までの間の温度にて前記層を硬化させるステップ。
‐一般式M1(OR1)n に従う前駆体、
一般式M2(OR2)(n-1)R2´に従う前駆体、および
一般式M3(OR3)(n-2)R3´2に従う前駆体、ここで:
R1、R2、R3又はR3´はアルキル基を示す。
‐器具のボウルの外面に(濃くない)ゾル‐ゲル組成物を散布し、接着層3を形成するステップ;
‐接着層が乾燥した後、金属ビーズ71、711を含む揺変流動性ペーストの層61が、スクリーン印刷によってその上に付加されるステップ;および、
‐ペーストの層61が乾燥した後、第2揺変流動性ゾル‐ゲルペーストの非連続的な層62が、その上にスクリーン印刷によって付加されるステップ。これにおいて第2揺変流動性ゾル‐ゲルペーストは、第1スクリーン印刷ペーストと同じであり、金属ビーズ72、721を含み、装飾的なデザインを与えることを意図される。
‐接着ゾル‐ゲル組成物に関しては、上記で定義したような金属アルコキシド前駆体に基づく初期ゾル‐ゲルが、出発原料(starting material)として使用される;
‐この金属アルコキシドは、その後、水、および酸または塩基(base)の存在のもと反応槽(reaction vessel)で加水分解される(好ましくは、縮合反応によって、アルカリ性およびアルカリ土類のナトリウム、カリウム、水酸化物およびアルコールが形成される);
‐加水分解‐縮合反応の間、粒子が形成されるならば(例えば、金属アルキシド前駆体の加水分解‐縮合反応の間にそこで形成された集合体の生成。特に、金属アルキシド前駆体がアルカリ法によってつくられる場合)、得られたゾル‐ゲル組成物のろ過が必要かもしれない;
‐加水分解‐縮合反応の間に生成されたアルコールは、(排気によって強化された)蒸発/蒸留の方法によってゾル‐ゲル組成物から除去され、その後、グリコールまたはテルペン誘導体(テルピネオール)によって置き換えられ、改良されたゾル‐ゲル組成物を形成する;
‐改良されたゾル‐ゲル組成物は、その粘度を増し且つそのスクリーン印刷の付加をより簡単にするよう、セルロース(「Dow Ethocel STD 20(登録商標)」)と混合される。0.5〜5Pa.s.(すなわち5〜50ポアズ)の目標粘度が求められている。カルボキシメチルセルロース(CMC)又はキサンタンガムのような他の有機結合剤の付加は、スクリーン印刷ペーストの所望の流動性を調整するために役立つだろう;
‐最後のステップで、金属フィラー(例えば、Hoganas 316 HIC 15μ)が散布によって付加され、混入されたスクリーン印刷ペーストが得られる。
Claims (11)
- 食物を受けるのに適した内面(21)と熱源に近接して配置されることを意図される外面(22)とを有する基部(2)を備え、前記外面(22)はゾル‐ゲルアウターコーティング(3)によって覆われており、前記ゾル‐ゲルアウターコーティング(3)は、球状フィラーを含むと共に、少なくとも1つの金属ポリアルコキシレートのマトリックスを含む材料の連続膜の形態である、調理器具(1)であって、
前記球状フィラー(71、711、72、721)は金属フィラーであり、その一部は、前記ゾル‐ゲルアウターコーティング(3)上に突出すると共に、前記ゾル‐ゲルアウターコーティング(3)の表面上に均一に分散されていることを特徴とする前記調理器具(1)。 - 前記ゾル‐ゲルアウターコーティング(3)は、
‐本質的に球状フィラーを含まないゾル‐ゲルコーティングの第1層(31)であって、基部(2)の外面(22)を覆う第1層(31)と、
‐前記球状フィラー(71、711)を含むゾル‐ゲルコーティングの第2層(32)であって、前記第1層(31)を完全に覆う第2層(32)とを、基部から連続的に含むことを特徴とする請求項1に記載の調理器具(1)。 - ゾル‐ゲルコーティングの第2層(32)はゾル‐ゲルコーティングの第3層(33)によって部分的に覆われており、ゾル‐ゲルコーティングの第3層(33)は、装飾的なデザインを提供し且つ球状フィラー(72、721)を含む非連続的なスクリーン印刷層であることを特徴とする請求項2に記載の調理器具(1)。
- 前記ゾル‐ゲルアウターコーティング(3)上に突出している球状フィラー(711、721)の表面密度は1平方ミリメートルあたり50個から300個までの間のフィラーであることを特徴とする請求項1から3の何れかに記載の調理器具(1)。
- 前記ゾル‐ゲルアウターコーティング(3)上に突出している球状フィラー(711、721)の表面密度は1平方ミリメートルあたり100個から250個までの間のフィラーであることを特徴とする請求項4に記載の調理器具(1)。
- 基部(2)は、任意に陽極酸化処理されたアルミニウム若しくはアルミニウム合金、又は研磨、ブラッシングにより若しくはマイクロビーズを伴って処理されたアルミニウム、又は研磨、ブラッシングにより若しくはマイクロビーズを伴って処理されたステンレス鋼、又は鋳鉄若しくは鋳造アルミニウム、又は鍛造若しくは研磨された銅、により作成された金属基材であることを特徴とする請求項1〜5の何れかに記載の調理器具(1)。
- 以下のステップを含むことを特徴とする調理器具(1)の製造方法:
a)少なくとも2つの互いに反対側の面(21、22)を有する基材(2)を設けるステップ;
b)少なくとも1つの金属アルコキシドのゾル‐ゲル前駆体を含む水性組成物を作成するステップ;
c)水と、酸性または塩基性触媒とを導入することによって前記ゾル‐ゲル前駆体を加水分解し、その後の縮合反応がアルコール形成を誘導してゾル‐ゲル組成物を得るステップ;
d)前記加水分解‐縮合ステップc)にて生成されたアルコールを部分的にまたは完全に除去し、除去されたアルコールをグリコールまたはテルベン誘導体によって置き換えて改良されたゾル‐ゲル組成物を得るステップ;
e)ゾル‐ゲル組成物にセルロースを加えて粘度を増加し、0.5Pa.s.から5Pa.s.までの間の粘度を有する流動性ペースト状の濃いゾル‐ゲル組成物を得るステップ;
f)ゾル‐ゲル組成物に球状金属フィラー(71、711、72、721)を加え、濃く且つ混入されたゾル‐ゲル組成物を得るステップ;
g)濡れた状態で少なくとも20μmの厚さを有する少なくとも1層の濃く且つ混入されたゾル‐ゲル組成物を、基材(2)の外面(22)全体にスクリーン印刷によって付加するステップ;および、
h)180℃から350℃までの間の温度にて前記層を硬化させるステップ。 - セルロースを加えて濃いゾル‐ゲル組成物を形成するステップe)は、セルロース以外の適量の有機結合剤を添加し、0.5Pa.s.から5Pa.s.までの間の濃さを有する濃いゾル‐ゲル組成物を得ることも含むことを特徴とする請求項7に記載の方法。
- ステップc)にて得られるようなゾル‐ゲル組成物を基材(2)の外面(22)全体に散布し、散布されたゾル‐ゲル層を形成する追加の付加ステップであって、当該散布されたゾル‐ゲル層の上に、ステップf)にて得られるような濃く且つ混入されたゾル‐ゲル組成物がスクリーン印刷によって付加されるステップをさらに含むことを特徴とする請求項7または8に記載の方法。
- 流動性ペースト状の濃く且つ混入されたゾル‐ゲル組成物のスクリーン印刷付加が、単一の又は多重の層において実行されることを特徴とする請求項7から9の何れかに記載の方法。
- 前記基材(2)は調理器具の最終形状を有し、前記基材(2)は、食物を受けるのに適した内面(21)と熱源に近接して配置されることを意図される外面(22)とを有する基部(2)を含むことを特徴とする請求項8から10の何れかに記載の方法。
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