CELLULOSE-ACETATE BUNDLE TO BE USED IN CIGARETTE FILTER, CIGARETTE FILTER, BUNDLE MAKING DEVICE AND METHOD OF BUNDLE MAKING Russian patent published in 2017 - IPC A24D3/10 

FIELD: tobacco industry.

SUBSTANCE: present invention relates to cellulose-acetate bundle, to cigarette filter made from this bundle, to said bundle production device and method of its production. Cellulose-acetate bundle to be used in cigarette filter, in which plurality of threads, extruded from plurality of corresponding spinneret holes, are merged together into bundle and subjected to twisting, wherein thread denier is not less than 5.0 denier and each thread Feret area is not less than 0.5. Cellulose-acetate bundle to be used in cigarette filter, in which plurality of threads, extruded from plurality of corresponding spinneret holes, are merged together into bundle and subjected to twisting, wherein thread denier is not less than 5.0 denier, and in case when each of threads cross section area represents S and cross section perimeter length represents L, area to cross section perimeter length S/L ratio is not less than 5.

EFFECT: cigarette filter is made from said bundle and has cross-section perimeter length from 14 to 18 mm.

8 cl, 6 dwg, 2 tbl