烟草科技2019，Vol.52Issue(10)：79-84,6.
成丝工艺对梗丝物理质量的影响
Influences of stem processing on physical properties of cut stems
摘要
Abstract
In order to investigate the effects of stem processing on the physical properties of cut stems, the stem processing technologies including traditional technology (stem flattening + cutting), flattening twice before cutting and cutting twice without flattening on the length distribution, width distribution and other physical indexes of cut stems were studied with the image processing technology and the characteristic size distribution equation of cut tobacco. The results showed that: 1) It was preferable to describe the size distribution of cut stems by way of characterizing the length and width of cut stems separately. The determination coefficients of length distribution and width distribution of the models were R2≥0.982 9 and R2≥0.993 7 respectively. 2) Comparing with the traditional technology, flattening twice reduced the characteristic width of cut stems from 1.54 mm to 1.21 mm, cut stems had better crimp form, but less shape uniformity and the width uniformity coefficient decreased from 2.99 to 2.70. Flattening twice affected cut stems’length slightly. 3) In the case of cutting twice, the shape of cut stem was obviously better though the yield of cut stem was lower. The characteristic width of cut stems reduced from 1.54 mm to 1.12 mm, while the width uniformity coefficient increased from 2.99 to 3.77; the characteristic length of cut stems reduced from 19.07 mm to 12.71 mm, and the length uniformity coefficient promoted slightly. The proportion of medium and short strands in cut stems increased from 37.58% to 83.47%.关键词
梗丝/双压工艺/双切工艺/特征尺寸/均匀性系数Key words
Cut stem/ Flattening twice technology/ Cutting twice technology/ Characteristic size/ Uniformity coefficient分类
轻工纺织引用本文复制引用
刘民昌,刘洋,文武,温若愚,孔臻,李斌,张大波..成丝工艺对梗丝物理质量的影响[J].烟草科技,2019,52(10):79-84,6.基金项目
四川中烟工业有限责任公司科技项目"彰显宽窄‘润甜香’品类构建的特色梗丝加工技术研究"(2018510000340327). （2018510000340327）
