INK SET AND METHOD FOR INSPECTING RECORDING HEAD

To provide an ink set which easily introduces a recording head filling liquid into an ink flow channel in a recording head, easily discharges the recording head filling liquid from the recording head, and can effectively suppress coagulation of a pigment component in ink for inkjet in a recording he...

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Bibliographic Details
Main Author TAKAORI YASUKO
Format Patent
LanguageEnglish
Japanese
Published 26.08.2022
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COLOUR PRINTING
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
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:To provide an ink set which easily introduces a recording head filling liquid into an ink flow channel in a recording head, easily discharges the recording head filling liquid from the recording head, and can effectively suppress coagulation of a pigment component in ink for inkjet in a recording head.SOLUTION: An ink set includes ink for inkjet, and a recording head filling liquid. The ink for inkjet contains a pigment, a pigment coating resin, a glycol ether compound, a first polyhydric alcohol compound, and water. The recording head filling liquid contains polyethylene glycol, a second polyhydric alcohol compound, a nonionic surface active agent, and water. A mass average molecular weight of the polyethylene glycol is 190 or more and 420 or less. A content ratio of the polyethylene glycol in the recording head filling liquid is 0.7 mass% or more and 12.0 mass% or less.SELECTED DRAWING: None 【課題】記録ヘッド充填液が記録ヘッド内のインク流路に導入され易く、記録ヘッド充填液が記録ヘッドから排出され易く、かつ記録ヘッド内でインクジェット用インク中の顔料成分が凝集することを効果的に抑制できるインクセットを提供する。【解決手段】インクセットは、インクジェット用インクと、記録ヘッド充填液とを備える。インクジェット用インクは、顔料と、顔料被覆樹脂と、グリコールエーテル化合物と、第１多価アルコール化合物と、水とを含有する。記録ヘッド充填液は、ポリエチレングリコールと、第２多価アルコール化合物と、ノニオン界面活性剤と、水とを含有する。ポリエチレングリコールの質量平均分子量は、１９０以上４２０以下である。記録ヘッド充填液におけるポリエチレングリコールの含有割合は、０．７質量％以上１２．０質量％以下である。【選択図】なし
Bibliography:Application Number: JP20210022519