Dye fixing agent for water-color ink,ink jet recording...

C - Chemistry – Metallurgy – 01 – B

Patent

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Details

C01B 33/20 (2006.01) B41M 5/52 (2006.01) C01F 7/00 (2006.01) B41J 2/01 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2355094

A dye fixing agent for water-color ink to be contained in the water-color ink accepting layer of an ink jet recording medium having an water-color ink accepting layer formed on a substrate, which is a hydrotalcite compound containing a silicic acid anion and a sulfuric acid ion, or a silicic acid anion as an anion(s). An ink jet recording medium comprising the dye fixing agent for water-color ink formed on a substrate. The dye fixing agent for water-color ink of the present invention is excellent in the fixability of water-color ink, the resolution of an image recorded on a medium, water resistance and light resistance.

La présente invention concerne un agent de fixation de colorant dans une couche accueillant de l'encre aqueuse, utilisée dans un support d'enregistrement à jet d'encre possédant un substrat et, stratifiée sur ce dernier, ladite couche accueillant de l'encre aqueuse, qui comprend un composé à base d'hydrotalcite contenant un anion silicate et un ion sulfate ou un anion silicate en tant qu'anions constitutifs. La présente invention concerne également un support d'enregistrement à jet d'encre possédant un substrat et, stratifiée sur ce dernier, ladite couche accueillant de l'encre aqueuse. La présente invention concerne également un composé hydro poreux, représenté par la formule (1) : M<II>1-xAPx(OH)2(A1<n->)a(A2<m->)b • yH2O, dans laquelle M<II> représente Mg<2+> et/ou Zn<2+>, A1<n-> représente un anion silicate et un ion sulfate n-valent ou un anion silicate n-valent, A2<m-> représente un anion choisi dans le groupe formé par CO3<2->, NO3<->, Cl<-> et OH<->, x et y satisfont la formule 0,50 < x </= 0,80 et la formule 0 < y </= 0,80 et a et b satisfont la formule 0,50 < na + mb </= 0,80.

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