BINDER COMPONENT AND WATER-BASED INKJET INK

• Main Authors: SHIMANAKA HIROYUKI, YOSHIKAWA YUKIO, OKUBO RIE, NISHI SUZUKA, KAMABAYASHI JUN
• Format: Patent
• Language: English; Japanese
• Published: 02.04.2024
• 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

To provide an eco-friendly binder component for water-based inkjet ink, which can create a dry film that demonstrates superior adhesion and wear resistance on substrates composed of polypropylene, polyethylene, and polyester.SOLUTION: An binder component for water-based inkjet ink satisfies a following requirement (1) or the like. [Requirement (1)]: The binder component is an emulsion comprising emulsion particles composed of a polymer with a constitutional unit derived from styrene (i), a constitutional unit derived from isobornyl (meth)acrylate (ii), and a constitutional unit derived from an acrylate monomer such as ethyl acrylate (iii). A total content of the constitutional units (i) and (ii) is 60-90 mass%, and a mass ratio of the constitutional units (i), (ii), and (iii) is (i): (ii): (iii)=5-40: 20-70: 10-40.SELECTED DRAWING: None 【課題】ポリプロピレン系基材、ポリエチレン系基材、及びポリエステル系基材に対する密着性及び耐摩擦性に優れた乾燥皮膜を形成しうる、環境に配慮された水性インクジェットインク用のバインダー成分を提供する。【解決手段】下記要件（１）等を満たす水性インクジェットインク用のバインダー成分である。［要件（１）］：スチレンに由来する構成単位（ｉ）、イソボルニル（メタ）アクリレートに由来する構成単位（ｉｉ）、並びにエチルアクリレート等のアクリレート系モノマーに由来する構成単位（ｉｉｉ）を有するポリマーからなるエマルジョン粒子を含有するエマルジョンであり、構成単位（ｉ）と構成単位（ｉｉ）の合計の含有量が、６０～９０質量％であり、構成単位（ｉ）、構成単位（ｉｉ）、及び構成単位（ｉｉｉ）の質量比が、（ｉ）：（ｉｉ）：（ｉｉｉ）＝５～４０：２０～７０：１０～４０である。【選択図】なし