Denim articles of clothing such as blue jeans, are conventionally treated with a hypochlorite. The hypochlorite is thereafter neutralized with a liquid composition containing HYPRA.The composition neutralized the hypochlorite, prevents the yellowing of the article and reduces the biological oxygen demand in plant effluent.

To neutralize the hypochlorite after treatment of the articles, traditionally, an “antichlor” is applied to the denim article. The “antichlor” is introduced, also, to minimize the yellowing of the fabric after washing or similar treatment.

Generally, the “antichlors” which are used to neutralize the¬†hypochlorite are either sodium dithionate or sodium bisulfite. While the dithionates or bisulfites are efficacious for neutralizing the hypochlorite certain side effects detract from their desirability.