The deinking effect of printing paper filled with CaSiO3 and CaSiO3/French chalk was investigated. As a result, it shows that the two kinds of paper samples have better deinking effect, and the whiteness of the former is slightly higher than that of the latter. However, the strength index of the former is slightly lower than that of the latter. The adhesive removal effect of the paper sample filled with CaSiO3 is better than that of the paper filled with CaSiO3/ French chalk powder.
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