blueing

British  

/ ˈbluːɪŋ /

noun

1. a blue material, such as indigo, used in laundering to counteract yellowing

2. the formation of a film of blue oxide on a steel surface

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Example Sentences

Wash blue, or blueing, is a laundry product with iron powder and just a hint of blue dye.

From Salon • Mar. 17, 2021

The Glen Alden Coal Co. of Buffalo and Rochester, N. Y., has made the last wash a blueing process.

From Time Magazine Archive

This circumstance has led Sociologists Peter and Brigitte Berger to suggest that if what Charles Reich calls "the greening of America" goes on apace, it may shade into a "blueing of America."

From Time Magazine Archive

There were violets, some white, some yellow and some purple, with others blue, like the ones Uncle Wiggily used to make blueing water for Nurse Jane's clothes.

From Uncle Wiggily in the Woods by Garis, Howard Roger

Or, after blueing in the vat, the black may be dyed or topped on by the process with copperas, which will be described below.

From The Dyeing of Woollen Fabrics by Beech, Franklin