blueing

/ 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

Example Sentences

Care should be taken to screw the53 bearing cap onto the shims as tightly as possible each time the blueing test is to be made.

From Project Gutenberg

Two wash-forms are needed; one for the two tubs in which to put the suds, and the other for blueing and starching-tubs.

From Project Gutenberg

You know that you do not put much blueing into a washtub full of water.

From Project Gutenberg

The man who invented a 21-inch collar ought to be forced to suck boiling starch through the neck of a Blueing Bottle!

From Project Gutenberg

The soap should be thoroughly rinsed from the linen before the blueing is put in the washer.

From Project Gutenberg