US1467265A - Process of regenerating cellulose - Google Patents
Process of regenerating cellulose Download PDFInfo
- Publication number
- US1467265A US1467265A US295088A US29508819A US1467265A US 1467265 A US1467265 A US 1467265A US 295088 A US295088 A US 295088A US 29508819 A US29508819 A US 29508819A US 1467265 A US1467265 A US 1467265A
- Authority
- US
- United States
- Prior art keywords
- bath
- filaments
- alcohol
- films
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 5
- 229920002678 cellulose Polymers 0.000 title description 2
- 239000001913 cellulose Substances 0.000 title description 2
- 230000001172 regenerating effect Effects 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical class N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 239000011928 denatured alcohol Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000001760 fusel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Definitions
- Films or filaments as usually prepared from viscose are more or less'harsh to the touch, lack the desired transparency and are subject to a considerable degree of shrinkage during the drying operations.
- the objects therefore of the present invention are to produce a film or filament of a soft texture. more closely resembling that of natural silk; which film or filament, when in the form of a film, will possess a high deee of transparency, and in which the shrinkage during drying willbe materially lessened.
- the improvement consists in preparing, by any satisfactory method, films or filaments, and while wet, subjecting them to the 0 action of a bath consisting of an alcohol.
- This bath may be made acid With'five percent more or lessof acid with good results but in practice we prefer to use a neutral bath. HCl and acetic acid may be mentioned as suitable acids.
- the filaments are subjected to this bath for such time as is necessary to produce the desired result but ordinarily a period of one minute has been found to be sufiicient. In commercial op-.
- ordinary wood alcohol denatured alcohol, preferably denatured with some material soluble in water, or refined fusel oil may be used.
- a process which comprises setting viscose in a hot solution containing ammon um sulfate, nd thereafter, without an intermediate drying, soaking in an alcoholic-liquid.
- a process of improving regenerated cellulose articles comprising formlng the article and setting the same, washing the article to, remove salts and while wet subject-- ing the article. to a bath of an alcoholic liquid.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Patented Sept. 4, 19:23..
ALBERT D. CONLEY AND ELTING C. STILLW'ELL, OF BALTIMORE, HARYLAND, .A S- SIGNOBS, BY MESNE ASSIGNMENTS, T JAMES P. EOOPER MANUFACTURJNG COM- PANY, OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND.
' rao'cass or nncnnnna'rme CELLULOSE.
N0 Drawing. Application filed May 6, 1919, SerialNo. 295,088. Renewed June 12, 1923. v
Films or filaments as usually prepared from viscose, are more or less'harsh to the touch, lack the desired transparency and are subject to a considerable degree of shrinkage during the drying operations.
The objects therefore of the present invention are to produce a film or filament of a soft texture. more closely resembling that of natural silk; which film or filament, when in the form of a film, will possess a high deee of transparency, and in which the shrinkage during drying willbe materially lessened. i
The improvement consists in preparing, by any satisfactory method, films or filaments, and while wet, subjecting them to the 0 action of a bath consisting of an alcohol.
This bath may be made acid With'five percent more or lessof acid with good results but in practice we prefer to use a neutral bath. HCl and acetic acid may be mentioned as suitable acids. The filaments are subjected to this bath for such time as is necessary to produce the desired result but ordinarily a period of one minute has been found to be sufiicient. In commercial op-.
eration, ordinary wood alcohol, denatured alcohol, preferably denatured with some material soluble in water, or refined fusel oil may be used.
We regard the novelty of the present invention as residin in the preparation of films or filaments rom viscose in which the films or filaments are subjected whilejin the wet condition to a bath consisting of an alcohol, or to a bath consisting of an alcohol containing five percent more or less of acid.
In: connection with this step We may use other steps or combinations of steps already known to the art" In order that our mode of operation may be thoroughly understood we give the following example, but desire it understood that we do not limit our inven-- film or filament to a precipitating bath of I hot saturated ammonium sulfate, and follow this by a cleaning in hot sodium bisulfite. The film or filament is then washed in water and immersed while still wet in methyl alcohol as described above. Following this the films or filaments are dried in a suitable manner.
What we claim is,- v
1. A process which comprises setting viscose in a hot solution containing ammon um sulfate, nd thereafter, without an intermediate drying, soaking in an alcoholic-liquid.
2. A process of improving regenerated cellulose articles comprising formlng the article and setting the same, washing the article to, remove salts and while wet subject-- ing the article. to a bath of an alcoholic liquid.
3. A process which comprises settin a,
removing the product from the settin bath, treating the same with a cleanlng bat and after removing the same from sald cleaning bath, subjecting the same to treatment with viscose solution in a setting bath, and ater In testimony whereof we aflix our signatures.
I ALBERT D. CONLEY.
ELTING C. STILLWELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US295088A US1467265A (en) | 1919-05-06 | 1919-05-06 | Process of regenerating cellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US295088A US1467265A (en) | 1919-05-06 | 1919-05-06 | Process of regenerating cellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1467265A true US1467265A (en) | 1923-09-04 |
Family
ID=23136162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US295088A Expired - Lifetime US1467265A (en) | 1919-05-06 | 1919-05-06 | Process of regenerating cellulose |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1467265A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805119A (en) * | 1954-01-12 | 1957-09-03 | Schweizerische Viscose | Alkali cellulose xanthates |
-
1919
- 1919-05-06 US US295088A patent/US1467265A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805119A (en) * | 1954-01-12 | 1957-09-03 | Schweizerische Viscose | Alkali cellulose xanthates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2040880A (en) | Process for the preparation of films and filaments and products thereof | |
| US2236061A (en) | Method of making films, threads, and the like | |
| GB264161A (en) | Manufacture of artificial materials from viscose | |
| JPS60139873A (en) | Modification of fiber material | |
| US1467265A (en) | Process of regenerating cellulose | |
| US1998576A (en) | Novel artificial silk effects and process of producing same | |
| US3170973A (en) | Method of producing fibers | |
| US1546211A (en) | Manufacture of products containing cellulose | |
| US1864244A (en) | Dehydrated cellulose bung, tube, etc. | |
| US2017177A (en) | Process of removing solvents from plastic colloids | |
| US2284614A (en) | Process for improving cellulose products | |
| GB340436A (en) | Improvements in the production of artificial materials by wet spinning processes | |
| US2070576A (en) | Process for the manufacture of disintegration products of starch | |
| US3658554A (en) | Method of making confectioned mushrooms | |
| US2347677A (en) | Film, filament, fiber, or other shaped article made by hardening proteins coagulatedfrom their solutions | |
| US2451768A (en) | Regenerated cellulose film manufacture | |
| GB407710A (en) | Improvements in or relating to the production or treatment of artificial filaments, threads, yarns, ribbons and the like | |
| GB352909A (en) | Improved manufacture of artificial threads or films | |
| US3490862A (en) | Method for uniform acetylation in the anhydrous gas-phase acetylation reaction of fibers | |
| US1961316A (en) | Manufacturing flat-walled or sheet-like cellulose products | |
| US2126489A (en) | Process of lowering the viscosity of hydrolyzed cellulose esters | |
| US2387168A (en) | Treatment of cellulose derivative articles | |
| US1445382A (en) | Manufacture of acetose | |
| US2091970A (en) | Cellulose ester products and materials made therefrom | |
| US2368154A (en) | Treatment of artificial materials |