| 摘要 |
PURPOSE:To enhance the desensitization power and buffer power of the titled processing liquid by using a specific processing liquid contg. inositol hexaphosphoric acid (salt) as a chief material. CONSTITUTION:(A) the inositol hexaphosphoric acid (salt), (B) colloidal silica, (C) water soluble Zr compd. (salt) and (D) org. acid (salt) are incorporated into the titled processing liquid. The grain size of the component B is preferably <=0.1mu and the content thereof is 1-5wt% of the component A. The component C consists of acetate or nitrate of Zr and the content thereof is preferably <=5wt% of the total amt. The component D consists of divalent and higher polybasic org. acid (salt) and the content thereof is preferably 0.5-10wt% of the total amt. A stable hydrophilic desensitized film is thereby early formed and further, the buffer power is improved, by which adaptability to neutral paper is improved.
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