Patent ID: 8691004

Claim:
A pretreatment liquid adapted to be applied onto a recording medium in advance of ink-jet recording during which a pigment ink is applied to the recording medium, wherein the pretreatment liquid comprises one of the following components (i)-(xiii), and water: Component (i): a combination of about 1 wt. % to about 4 wt. % succinic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 1 wt. % to about 4 wt. % of NaI; Component (ii): a combination of about 4 wt. % succinic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of KCl; Component (iii): a combination of about 4 wt. % succinic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of LiCl; Component (iv): a combination of about 4 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of NaI; Component (v): a combination of about 1 wt. % to about 4 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 1 wt. % to about 4 wt. % of NaCl; Component (vi): a combination of about 4 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of KI; Component (vii): a combination of about 4 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of KCl; Component (viii): a combination of about 4 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of LiCl; Component (ix): a combination of about 4 wt. % succinic acid, about 5 wt. % of diethvlene glycol-n-hexyl ether, and about 4 wt. % of KCl; Component (x): a combination of about 4 wt. % acetic acid, about 5 wt. % of diethylene glycol-n-hexyl ether, and about 4 wt. % of KI; Component (xi): a combination of about 4 wt. % acetic acid, about 10 wt. % of triethylene glycol-n-butyl ether, and about 4 wt. % of KI; Component (xii): a combination of about 2 wt. % succinic acid, about 2 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of NaI; and Component (xiii): a combination of about 2 wt. % succinic acid, about 2 wt. % acetic acid, about 10 wt. % of dipropylene glycol-n-propyl ether, and about 4 wt. % of KCl.