发明授权
- 专利标题: Ink compositions substantially free of organic liquids
- 专利标题(中): 基本上不含有机液体的油墨组合物
-
申请号: US09106621申请日: 1998-06-29
-
公开(公告)号: US06258873B1公开(公告)日: 2001-07-10
- 发明人: Kurt B. Gundlach , Maura A. Sweeney , Luis A. Sanchez , Richard L. Colt , Melvin D. Croucher
- 申请人: Kurt B. Gundlach , Maura A. Sweeney , Luis A. Sanchez , Richard L. Colt , Melvin D. Croucher
- 主分类号: C09D1100
- IPC分类号: C09D1100
摘要:
Disclosed is an ink composition which comprises water, an acid dye, a monovalent salt, a polyquaternary amine compound, and an optional nonionic or cationic surfactant, said ink being substantially free of organic solvents. The ink is particularly suitable for applications such as ink jet printing and marking pens. The disclosed inks in some embodiments are substantially indelible. Also disclosed is a composition for removing the ink compositions from substrates to which they have been applied which comprises water and a dianionic surfactant, optionally further containing a salt, urea, and/or a viscosity building agent such as a gum.