ANTI-WETTING, LOW ADHESION COATINGS FOR AQUEOUS INK PRINTHEADS

PROBLEM TO BE SOLVED: To provide anti-wetting, low adhesion coatings for use with aqueous ink jet printheads.SOLUTION: A coating for an aqueous ink jet printhead front face comprises a perfluoropolyether diol compound comprising an ethyloxylated spacer and a triisocyanate. A drop of the aqueous ink...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KYLE B TALLMAN, SCOTT J GRIFFIN, JONATHAN HELKO, SAMBHY VARUN, ROETKER MICHAEL S, BADESHA SANTOKH S
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES FILLING PASTES i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide anti-wetting, low adhesion coatings for use with aqueous ink jet printheads.SOLUTION: A coating for an aqueous ink jet printhead front face comprises a perfluoropolyether diol compound comprising an ethyloxylated spacer and a triisocyanate. A drop of the aqueous ink exhibits a sliding angle less than about 30° and a contact angle greater than about 40° with a coating surface. The perfluoropolyether diol compound has a general formula of OH-(CH2CH2O)-CH2CF2O-(CF2CF2O)b(CF2O)cCF2-CH2-(CH2CH2O)-OH with b and c being integers from 0 to 50, and a molecular weight of about 1500 AMU.SELECTED DRAWING: None 【課題】水性インクジェット印刷ヘッドと共に使用するための濡れ防止性低付着性コーティングを提供する。【解決手段】水性インクジェット印刷ヘッド前面のためのコーティングであって、エチルオキシル化スペーサーを含むペルフルオロポリエーテルジオール化合物と、トリイソシアネートとを含み、水性インクの液滴が、コーティング表面で、約３０°より小さなすべり角と、約４０°より大きな接触角を示す、コーティング。ペルフルオロポリエーテルジオール化合物が、一般式：ＯＨ−（ＣＨ２ＣＨ２Ｏ）−ＣＨ２ＣＦ２Ｏ−（ＣＦ２ＣＦ２Ｏ）ｂ（ＣＦ２Ｏ）ｃＣＦ２−ＣＨ２−（ＣＨ２ＣＨ２Ｏ）−ＯＨを有し、分子量が約１５００ＡＭＵであり、ｂおよびｃは、０〜５０の整数である、前記のコーティング。【選択図】なし