INK COMPOSITION FOR LASER MARKING, INK LAYER FOR LASER MARKING, LAMINATE, AND LASER MARKING METHOD

To provide an ink composition for laser marking which sufficiently includes laser printing property (visibility), blocking resistance, adhesiveness, and laminate strength.SOLUTION: An ink composition for laser marking contains a binder resin, a white pigment and an organic solvent, in which the bind...

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Main Authors AKAO YASUSHI, KANAMORI RYOTA, TAKASHIBA SHINICHI
Format Patent
LanguageEnglish
Japanese
Published 09.01.2020
Subjects
COLOUR PRINTING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:To provide an ink composition for laser marking which sufficiently includes laser printing property (visibility), blocking resistance, adhesiveness, and laminate strength.SOLUTION: An ink composition for laser marking contains a binder resin, a white pigment and an organic solvent, in which the binder resin contains a polyurethane resin and a cellulose derivative, the cellulose derivative is a lower acyl group substituent cellulose derivative and/or lower alkyl substituent cellulose derivative, and the white pigment is titanium oxide having an average particle diameter of 0.26 μm or less.SELECTED DRAWING: None 【課題】レーザー印字性（視認性）、耐ブロッキング性、接着性、およびラミネート強度を十分に備えたレーザーマーキング用インキ組成物を提供すること。【解決手段】バインダー樹脂、白色顔料、および有機溶剤を含み、前記バインダー樹脂が、ポリウレタン樹脂とセルロース誘導体を含み、前記セルロース誘導体が、低級アシル基置換体セルロース誘導体および／または低級アルキル置換体セルロース誘導体であり、前記白色顔料は、平均粒子径が０．２６μｍ以下の酸化チタンであるレーザーマーキング用インキ組成物。【選択図】なし
Bibliography:Application Number: JP20180122958