Functional solution, method for improving Lab value of glass, glass and preparation method of glass

The invention relates to a functional solution, a method for improving the Lab value of glass, the glass and a preparation method of the glass. The functional solution comprises the following components in percentage by mass: 10%-60% of an inorganic alkaline reagent, 2%-8% of a chelating agent, 1%-4% of a corrosion inhibitor and 28%-87% of water, the mass ratio of the corrosion inhibitor to the chelating agent is 1: (1-4); the mass ratio of the corrosion inhibitor to the inorganic alkaline reagent is 1: (5-50); the inorganic alkaline reagent is selected from at least one of potassium hydroxide and lithium hydroxide; the chelating agent is selected from at least one of trisodium citrate, sodium gluconate, ethylenediamine tetraacetic acid tetrasodium salt and sodium hexametaphosphate. According to the scheme, the surface color of the glass can be recovered to a normal state, and Lab reaches a required range. 本发明涉及一种功能溶液、用于改善玻璃Lab值的方法、玻璃及其制备方法。该功能溶液包括如下质量百分比的组分：无机碱性试剂10％～60％、螯合剂2％～8％、缓蚀剂1％～4％以及水28％～87％；缓蚀剂和螯合剂的质