Cosolvents in printing fluids

Details Cosolvents in printing fluids Cosolvents in printing fluids

C - Chemistry, Metallurgy

09

D

C09D 11/00 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2581712

An aqueous printing fluid, comprising a cosolvent, the cosolvent or mixture of compounds comprising at least one inner salt compound having a sp3-hybridized nitrogen cation and an associated anionic charge either isolated on an N- substituted oxygen anion bound directly to the sp3-hybridized nitrogen cation or isolated among the oxygens of a carboxylate group; a method of avoiding paper curl in printed paper by using the above-described aqueous printing fluid; and a printer system for avoiding paper curl in printed paper through using the above-described aqueous printing fluid.

Cette invention concerne un liquide d'impression aqueux comprenant un cosolvant. L'invention concerne également ledit cosolvant ou un mélange de composés comprenant au moins un composé zwitterion avec cation d'hydrogène hybridé sp3 et une charge anionique associée soit liée directement au cation d'hydrogène hybridé sp3, soit isolé sur un anion oxygène N substitué parmi les oxygènes d'un groupe carboxylate. L'invention concerne également un procédé et un système d'impression permettant d'éviter au papier de s'enrouler une fois imprimé grâce l'emploi du liquide d'impression aqueux susdécrit.

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