in ink

in ink

In pen, as opposed to pencil. The teacher says that we're not allowed to do our math homework in ink. You need to sign this in ink—here's a pen.
See also: ink

in ink

written or signed with a pen that uses ink, not with a pencil. You should write your report in ink. You must sign your checks in ink.
See also: ink
References in periodicals archive ?
"The decision to specialize in ink production marks the true birth of the 'Siegweierk' brand," said Siegwerk CEO Herbert Forker.
During that month, the Israeli military carried out a campaign of mass detentions in the territories, holding over 1,000 Palestinian men in a week and etching ID numbers in ink on some detainees' arms.
Gravure is a process wherein a printing cylinder that contains an image area comprised of a pattern of tiny holes (called cells) runs partially immersed in ink. The ink fills in the cells, and excess ink is scraped off the OD of the cylinder by a blade.
But the more rapid delivery of the ink onto the substrate has necessitated changes in ink formulations.
"OEMs have typically locked in ink sales through bundling 'tie-ins' with machine servicing," said Mr.
SOY-BASED INKS - soy oil and other vegetable-based oils are a promising replacement for some of the volatile petroleum products used as vehicles in inks. "Soy-based inks are better, but you still can't eat them," one designer says.