AMMONIUM AND BORIC ACID FREE DELIMING AGENT, A DELIMING PROCESS AND A USE THEREOF

摘要

The present invention discloses an ammonium and boric acid free deliming agent, which comprises amino acid component and no ammonium compound; the amino acid component comprising amino acid, amino acid salt, and/or protein hydrolysate which contains amino acid and/or amino acid salt. The present invention also discloses a deliming process by using said deliming agent and the use of amino acid, amino acid salt and/or protein hydrolysate as deliming agent. The deliming agent not containing boric acid or ammonium salts is environmentally friendly and has good deliming effect.