Organic acid type roughening liquid

The invention discloses an organic acid roughening solution, the ingredient of which comprises organic acid; the organic acid roughening solution is characterized in that the ingredient of the organic acid roughening solution comprises 0.1-3.0% of impurity ion masking agent by percentage composition. Compared with the prior art, the organic acid roughening solution has the beneficial effects that: by adopting the impurity ion masking agent, the organic acid roughening solution can effectively solve the problem that the roughening solution is easy to be interfered by impurity ions such as tin, iron, and the like; the organic acid roughening solution reduces the time by which the roughening solution is replaced during the surface treatment technique of the copper used for a printing circuit board and prolongs the service life of the roughening solution. The organic acid roughening solution has the advantages of strong capability of impurity ion pollution resistance, large process tolerance and convenient use; furthermore, under the condition of identical small copper corroding amount, the roughening degree of the surface of the copper is high; therefore, the organic acid roughening solution can obviously reinforce the adhesion of the surface with other coating or polymer and ensure the quality of coating and electro-plating or chemical-plating treatment.