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

Suburban defections across Northern Virginia, the Greater Richmond region and Hampton Roads accounted for much of the blueing of the Old Dominion.

From Washington Times

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

From Salon

I cannot bear to be let go, clenched in my quilt, a phantom receding, it rustles off, the dawn barely blueing the air, the static stopped.

From The New Yorker

“And look at the blueing,” cried Cora, pointing to a mass of blue water flowing from a pipe outside the structure.

From Project Gutenberg

One reason that linen gets that dirty brown color is because it has not been properly rinsed before adding the blueing.

From Project Gutenberg