The papermaking test of calcium carbonate in laboratory proves that, this kind of production used as a filling material in high-quality cigarette paper can improve the porosity, b rightness of cigarette paper, and more filling was reserved.
經抄紙試驗證明 ,該碳酸鈣產品對于提高紙張的白度、不透明度、留著率有比較滿意的結果 ,其理化指標與粒度分布測試結果顯示符合卷煙紙填充之
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