FIELD: tobacco industry.
SUBSTANCE: present invention relates to a method of producing a filtering plug from acetate-cellulose fiber for use in a cigarette filter, a so-called filtering cellulose acetate tow. Cellulose acetate tow for use in a cigarette filter of the present invention is made from a spinning solution obtained by dissolving secondary cellulose acetate with a degree of polymerisation (DP) of up to 350 in a low-toxicity solvent, consisting of a mixture [close to azeotropic] ethyl acetate (CH3COOC2H5) with isopropyl (CH3CH2(OH)CH3) or ethyl alcohol (C2H5OH) with addition of water (H2O) with subsequent extrusion of spinning solution from a large number of spinning holes and obtaining cellulose acetate tow in a spinning machine.
EFFECT: disclosed solvent composition increases filtration properties of cigarette filter by forming acetate-cellulose fiber with thread diameter of less than 10 mcm.
3 cl
| Title | Year | Author | Number |
|---|---|---|---|
| FILTER CIGARETTE | 1996 |
|
RU2140758C1 |
| LYOCELL MATERIAL FOR CIGARETTE FILTER AND ITS PRODUCTION METHOD | 2015 |
|
RU2664206C1 |
| LYOCELL MATERIAL FOR CIGARETTE FILTER AND METHOD OF ITS PRODUCTION | 2014 |
|
RU2636728C2 |
| LYOCELL MATERIAL FOR TOBACCO FILTER AND METHOD OF ITS PREPARING | 2014 |
|
RU2636547C2 |
| METHOD FOR PRODUCING BIOLOGICALLY DEGRADABLE FILTERING MEMBERS OR FILTERING CORDS FOR TOBACCO SMOKE FILTERS | 1996 |
|
RU2153828C2 |
| METHOD FOR MANUFACTURE OF FILAMENT FROM CELLULOSE ACETATE (VERSION), CIGARETTE FILTER (VERSION) | 1992 |
|
RU2083146C1 |
| LYOCELL MATERIAL WITH MODIFIED CROSS SECTION FOR TOBACCO FILTERS AND METHOD FOR MANUFACTURE THEREOF | 2015 |
|
RU2666427C2 |
| METHOD OF PRODUCTION OF FILTERING WOOL AND METHOD OF PRODUCTION OF TOBACCO SMOKE FILTER ELEMENT | 1994 |
|
RU2082303C1 |
| CELLULOSE-ACETATE BUNDLE TO BE USED IN CIGARETTE FILTER, CIGARETTE FILTER, BUNDLE MAKING DEVICE AND METHOD OF BUNDLE MAKING | 2014 |
|
RU2609674C1 |
| TOW RAG OF CIGARETTE FILTER | 2014 |
|
RU2647802C1 |
