| 摘要 |
A marker fluid comprises a polydispersion with polymer particles of polyester, polyester amide, (meth)acrylate (co)polymers having a free carboxylic acid content of less than 10 wt.% and/or melamine-formaldehyde sulfonamide resins colored with marking agent. A marker fluid (I) comprises a polydispersion with particles colored with marking agent, optionally other dyestuffs and marking agents, at least one salt of a multivalent, preferably di- or trivalent cation, water as well as optional moisture retaining agents and other conventional additives whereby the polymer particles comprise polyester, polyester amide, (meth)acrylate (co)polymers having a free carboxylic acid content of less than 10 wt.% and/or melamine-formaldehyde sulfonamide resins.
|
