Alkaline deinking agent and technology for ink removal on jig

The invention provides an alkaline deinking agent and a technology for ink removal on a jig. The alkaline deinking agent consists of the following ingredients by mass percent: 8-10% of butyl cellosolve acetate, 15-20% of diglycol, 10-14% of a bulking agent, 10-15% of an alkaline penetrant, 1-3% of fatty alcohol-polyoxyethylene ether, 2-4% of a complexing agent and the balance of water. The alkaline deinking agent provided by the invention has a high deinking yield on the ink on the jig. The jig which contains the ink subjected to alkaline deinking by the alkaline deinking agent consisting of the components and then washed with water, and then, the jig is subjected to acidic deinking and washing to improve the deinking yield and improve production efficiency. An experiment result indicatesthat the deinking yield of the deinking agent provided by the invention is 92% or more. 本发明提供了种碱性脱墨剂和治具上油墨的脱除工艺，碱性脱墨剂以质量分数计，由以下组分组成：乙二醇丁醚醋酸酯8～10％，二甘醇15～20％，增容剂10～14％，碱性渗透剂10～15％，脂肪醇聚氧乙烯醚1～3％，络合剂2～4％，余量为水。本发明提供的碱性脱墨剂对治具上的油墨具有较