GB652844A - Improvements in and relating to the production of artificial threads, fibres, filaments, staple fibres and the like - Google Patents
Improvements in and relating to the production of artificial threads, fibres, filaments, staple fibres and the likeInfo
- Publication number
- GB652844A GB652844A GB30524/48A GB3052448A GB652844A GB 652844 A GB652844 A GB 652844A GB 30524/48 A GB30524/48 A GB 30524/48A GB 3052448 A GB3052448 A GB 3052448A GB 652844 A GB652844 A GB 652844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- acetic acid
- cellulose acetate
- filaments
- acid
- 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
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 36
- 239000000243 solution Substances 0.000 abstract 15
- 229920002301 cellulose acetate Polymers 0.000 abstract 6
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 abstract 6
- 230000001112 coagulating effect Effects 0.000 abstract 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 abstract 3
- 235000011056 potassium acetate Nutrition 0.000 abstract 3
- 238000009987 spinning Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 229920000742 Cotton Polymers 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000975 dye Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 229920000875 Dissolving pulp Polymers 0.000 abstract 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- 230000000397 acetylating effect Effects 0.000 abstract 1
- 230000021736 acetylation Effects 0.000 abstract 1
- 238000006640 acetylation reaction Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003377 acid catalyst Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 230000005070 ripening Effects 0.000 abstract 1
- 239000001632 sodium acetate Substances 0.000 abstract 1
- 235000017281 sodium acetate Nutrition 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 210000002268 wool Anatomy 0.000 abstract 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
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Artificial filaments, fibres, threads and the like are obtained by extruding a solution of cellulose acetate into an aqueous coagulating bath containing potassium acetate in a concentration of from 20 per cent up to saturation point. The bath preferably also contains free acetic acid, e.g. in a proportion of 50-250 grams per litre. The spinning solution may be heated to a temperature higher than that of the coagulating bath, e.g. the solution may be at 40-55 DEG C. and the coagulating bath may be maintained at 15-45 DEG C. The spinning solution may be obtained by dissolving cellulose acetate in acetone or acetic acid or it may be a solution of cellulose acetate in aqueous acetic acid obtained by acetylating cellulose in presence of acetic acid, adding water for ripening the cellulose acetate in solution, and neutralizing the acid catalyst. The cellulose acetate may be present in the solution in a proportion of 9-15 per cent. The solution may be clear or pigmented. If a solution of cellulose acetate in aqueous acetic acid is used, the concentration of acetic acid in the coagulating bath may be prevented from increasing, by continuously removing some of the liquid, recovering acetic acid from the withdrawn liquid, and feeding p potassium acetate solution containing a lower concentration of acetic acid into the bath. Threads having filament deniers as low as 1.5 may be obtained with tenacities of at least 1.1 grams per denier and dry extensibilities of 25-40 per cent. The threads obtained are resistant to direct cotton dyes and to acid wool dyes. In an example, cotton linters, pretreated with a solution of sulphuric acid in acetic acid, are acetylated with a mixture of acetic anhydride, acetic acid, and sulphuric acid, the reaction temperature being kept below 40 DEG C. After the acetylation, water is added and the solution is ripened at 26 DEG C. The catalyst is then neutralized by adding sodium acetate in aqueous acetic acid. The solution is filtered, de-aerated, and then extruded into an aqueous solution of potassium acetate and acetic acid. The filaments obtained are taken up by a godet and stretched while passing to a second godet. The spinning solution may contain a pigment such as titanium dioxide. In another example, cellulose acetate solution is extruded through a jet having 3000 orifices and the filaments produced are withdrawn from the bath as a tow of parallel filaments. The tow is washed and then stretched in boiling water. Specifications 7341/03, [Class 2], 3973/11, 13872/14, 15544/14, 177,868, 179,234, 198,392, 211,889, 230,813, 312,671, 334,838, [all in Class 2 (ii)], 341,148, 343,062, 434,425, 509,702 and 652,845 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB279590X | 1948-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB652844A true GB652844A (en) | 1951-05-02 |
Family
ID=10268015
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30524/48A Expired GB652844A (en) | 1948-11-24 | 1948-11-24 | Improvements in and relating to the production of artificial threads, fibres, filaments, staple fibres and the like |
| GB28163/49A Expired GB679203A (en) | 1948-11-24 | 1949-11-03 | Improvements in and relating to the production of cellulose acetate threads |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28163/49A Expired GB679203A (en) | 1948-11-24 | 1949-11-03 | Improvements in and relating to the production of cellulose acetate threads |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2632686A (en) |
| BE (2) | BE492232A (en) |
| CH (2) | CH279590A (en) |
| DE (2) | DE937970C (en) |
| FR (2) | FR1000334A (en) |
| GB (2) | GB652844A (en) |
| NL (2) | NL70801C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1008824B (en) * | 1953-05-13 | 1957-05-23 | Max Braun Fa | Ignition device for electric flashlight device with gas discharge tube |
| US3342921A (en) * | 1966-03-16 | 1967-09-19 | West Virginia Pulp & Paper Co | Process for producing fibrous filler having high wet end retention |
| DE4302055C1 (en) * | 1993-01-26 | 1994-03-24 | Rhodia Ag Rhone Poulenc | Cellulose acetate filaments prepd. by spinning from an acetone soln. - are useful for the prodn. of cigarette filter tow |
| US5662773A (en) * | 1995-01-19 | 1997-09-02 | Eastman Chemical Company | Process for preparation of cellulose acetate filters for use in paper making |
| US5705631A (en) * | 1995-12-15 | 1998-01-06 | Eastman Chemical Company | Laminar flow process of preparing cellulose diacetate fibers |
| US6184373B1 (en) | 1999-09-03 | 2001-02-06 | Eastman Chemical Company | Method for preparing cellulose acetate fibers |
| US20040214702A1 (en) * | 2003-04-25 | 2004-10-28 | Stroud Herbert D. | Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2147641A (en) * | 1928-11-05 | 1939-02-21 | Celanese Corp | Production of artificial filaments, films, and like materials |
| NL46526C (en) * | 1937-01-19 | |||
| US2341586A (en) * | 1941-08-07 | 1944-02-15 | Du Pont | Wet spinning of cellulose acetate |
-
1948
- 1948-11-24 GB GB30524/48A patent/GB652844A/en not_active Expired
-
1949
- 1949-10-24 NL NL140499A patent/NL70801C/xx active
- 1949-11-03 GB GB28163/49A patent/GB679203A/en not_active Expired
- 1949-11-17 BE BE492232D patent/BE492232A/xx unknown
- 1949-11-22 DE DEC186A patent/DE937970C/en not_active Expired
- 1949-11-23 CH CH279590D patent/CH279590A/en unknown
- 1949-11-24 FR FR1000334D patent/FR1000334A/en not_active Expired
-
1950
- 1950-10-25 DE DEC3317A patent/DE939107C/en not_active Expired
- 1950-10-27 NL NL156883A patent/NL72012C/xx active
- 1950-10-31 CH CH290225D patent/CH290225A/en unknown
- 1950-11-02 BE BE499117D patent/BE499117A/xx unknown
- 1950-11-03 FR FR1028931D patent/FR1028931A/en not_active Expired
-
1951
- 1951-05-11 US US225915A patent/US2632686A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL70801C (en) | 1952-09-15 |
| DE939107C (en) | 1956-02-16 |
| GB679203A (en) | 1952-09-17 |
| FR1000334A (en) | 1952-02-11 |
| CH279590A (en) | 1951-12-15 |
| CH290225A (en) | 1953-04-30 |
| US2632686A (en) | 1953-03-24 |
| FR1028931A (en) | 1953-05-28 |
| BE499117A (en) | 1951-03-01 |
| NL72012C (en) | 1953-03-16 |
| BE492232A (en) | 1949-12-15 |
| DE937970C (en) | 1956-01-19 |
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