Effects of freeness and filler on the physical characteristics of cigarette paper
1986
Kim, Y.H. | Seong, Y.S. | Rhim, K.S. (Korea Ginseng and Tobacco Research Inst., Taejon(Korea R.))
Extensive studies have been made of the effects of freeness and the calcium carbonate on the physical properties of hand-sheets from commercial flax, kenaf and NBKP. As freeness increased, the hand-sheets from the pulps above showed higher retention rate of calcium carbonate, brightness, opacity and tensile strength but lower value of porosity. Among these, the retention rate (46 %) showed the highest value in kenaf, the porosity (205 c.u.) in flax, and the opacity (67 %) and the tensile strength (2.8kg) in NBKP respectively. Under the constant freeness, retention rate of calcium carbonate in hand-sheets increased until 1.4 times pulp weight was added in flax and kenaf but, in NBKP, decreased from the beginning of 0.8 times with the highest retention rate
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