acid washing

American  

noun

1. a process in which a denim garment is treated with a bleach solution containing chlorine-soaked stones so that the color becomes faded and the material is softer.

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Other Word Forms

• acid-washed adjective

Example Sentences

It can be prepared by digesting red lead with warm dilute nitric acid; washing and drying the residue.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

In applying it, clean the leather by a weak solution of oxalic acid, washing it off immediately, and apply the composition when dry with a sponge.

From The Book of Household Management by Beeton, Mrs. (Isabella Mary)

The action of platinum salts upon a paper containing animal sizing gave it a tint which no amount of acid washing could remove.

From Crayon Portraiture Complete Instructions for Making Crayon Portraits on Crayon Paper and on Platinum, Silver and Bromide Enlargements by Barhydt, Jerome A.

Another method of preparation consists in boiling the disintegrated plants with dilute hydrochloric acid, washing the residue, and extracting with hot alcohol, from which the acid will then crystallise.

From Synthetic Tannins by Grasser, Georg

This oil is prepared from castor oil by a process of treatment with sulphuric acid, washing with water and neutralising with caustic soda.

From The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student by Beech, Franklin