FIELD: tobacco industry.
SUBSTANCE: method for producing a lyocell material includes spinning at 100-110°C a lyocell spinning solution containing cellulose pulp and the aqueous solution of N-methylmorpholine-N-oxide, in which the pulp concentration is 8-11 wt %. The spun lyocell solution is coagulated to produce coagulated lyocell multifilament yarn. The lyocell multifilament yarn is washed with water, treated with oil and dried. The lyocell multifilament yarn is then corrugated to produce a corrugated tow having a tensile strength of 1-2 g/den.
EFFECT: providing the production of a lyocell material for a cigarette filter with low strength, which contributes to its biodegradation, increasing the efficiency of the process of manufacturing cigarette filters.
17 cl, 1 tbl, 15 ex
| Title | Year | Author | Number |
|---|---|---|---|
| LYOCELL MATERIAL FOR TOBACCO FILTER AND METHOD OF ITS PREPARING | 2014 |
|
RU2636547C2 |
| LYOCELL MATERIAL WITH MODIFIED CROSS SECTION FOR TOBACCO FILTERS AND METHOD FOR MANUFACTURE THEREOF | 2015 |
|
RU2666427C2 |
| LYOCELL MATERIAL FOR CIGARETTE FILTER AND ITS PRODUCTION METHOD | 2015 |
|
RU2664206C1 |
| LYOCELL MATERIAL, CIGARETTE FILTER CONTAINING SUCH MATERIAL, AND METHODS OF THEIR PRODUCTION | 2022 |
|
RU2841584C2 |
| LYOCELL MATERIAL WITH MODIFIED CROSS SECTION, CIGARETTE FILTER AND METHODS OF THEIR PRODUCTION | 2022 |
|
RU2841581C2 |
| SYSTEM AND METHOD FOR PRODUCTION OF MONOFILAMENT YARN | 2016 |
|
RU2709920C1 |
| METHOD FOR PRODUCING CELLULOSE FIBER | 2018 |
|
RU2747297C1 |
| FIRE RESISTANT LYOCELLIC FIBER | 2018 |
|
RU2789193C2 |
| FIBER FROM AROMATIC POLYAMIDE, METHOD OF MANUFACTURING THEREOF, AND REINFORCING MATERIAL BASED ON THIS FIBER | 1992 |
|
RU2099448C1 |
| ULTRA-HIGH-MOLECULAR POLYAMIDE, DENSE COMPOSITION FOR SPINNING AND PRODUCT FORMS FROM IT | 2014 |
|
RU2647598C2 |
