US2422993A - Manufacture of threads, filaments, films, and the like from alginates - Google Patents
Manufacture of threads, filaments, films, and the like from alginates Download PDFInfo
- Publication number
- US2422993A US2422993A US513465A US51346543A US2422993A US 2422993 A US2422993 A US 2422993A US 513465 A US513465 A US 513465A US 51346543 A US51346543 A US 51346543A US 2422993 A US2422993 A US 2422993A
- Authority
- US
- United States
- Prior art keywords
- threads
- filaments
- per cent
- alginates
- manufacture
- 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
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
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/04—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of alginates
Definitions
- This invention relates to the manufacture of threads, filaments, and, the like, which I will hereinafter refer to as threads, from alginates.
- threads and the like can be obtained from sodium alginate by spinning a solution of this latter intoa bath containing a salt of an alkaline earth, such as calcium chloride, a small quantity of a cation-active compound such as cetyl pyridinium chloride and a small proportion of an organic acid such as acetic acid, in the substantial absence of free mineral acid.
- a salt of an alkaline earth such as calcium chloride
- a cation-active compound such as cetyl pyridinium chloride
- an organic acid such as acetic acid
- Example 1 8060 in such a manner that it is stretched 37 59 541.848
- the yam thus obtained is reeled into skeins and washed with a solution of 0.1.per cent of calcium chloride at 80 centigrade.
- the skeins are dried at room temperature and conditioned at 65? relative humidity.
- the dry yarn is free from stuck filaments.
- Example 2 The conditions of spinning are the same as in Example 1 except that the spinning bath contains 5 per cent of calcium chloride 0.2 per cent of acetic acid and 0.02 per cent of undecylglycxaline hydrochloride and is used at 27 centigrade.
- the yarn is washed with a solution containing 0.1 per cent of calcium chloride at 85 centigrade, air-dried and conditioned.
- the dry yarn is free from stuck filaments.
- the liquid used for washing the threads contains traces of alkali metals and/or magnesium, a small proportion, say 0.02 per cent to 0.05 per cent of a cationactive substance should be added to the washing liquid.
- a process of producing alginate threads free from stuck filaments which comprises extruding a solution of sodium alginate through a multihole jet into a coagulating bath consisting of water, about 5% of calcium chloride, from 0.01% to 0.10% of cetyl pyridinium chloride and from 0.1% to 5% of acetic acid and thereafter collecting the threads formed in a centrifugal spinning box.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Description
Patented June 24, 1947 MANUFACTURE OF THREADS, FILAMENTS, FILMS, AND THE LIKE FROM ALGINATES Ernest Edward Tallis, Meriden, England, assignor to Courtaulds Limited, London, England, a
British company No Drawing. Application December 8,1943, Serial l1$143513,465. In Great Britain February 19,
1 Claim. 1
This invention relates to the manufacture of threads, filaments, and, the like, which I will hereinafter refer to as threads, from alginates.
' It is known that when spinning a solution of sodium alginate into a spinning 'bath containing acid, the threads, which are gelatinous, tend to adhere to one another and it has been proposed in British Patent 541,848, which corresponds to U. S. Speakman 2,371,717, to coat the filaments with 011 during or immediately after coagulation and before they have had the opportunity of adhering together, and it has also been proposed to emulsify the oil by means of an addition of a cationic emulsifying agent, such as cetyl pyridinium chloride.
I have now found that threads and the like can be obtained from sodium alginate by spinning a solution of this latter intoa bath containing a salt of an alkaline earth, such as calcium chloride, a small quantity of a cation-active compound such as cetyl pyridinium chloride and a small proportion of an organic acid such as acetic acid, in the substantial absence of free mineral acid. By this process I am able to obtain alginate threads which do not adhere to one another without hit being necessary to add 011 to the spinning bat The proportion of organic acid present should not be so great that any substantial quantity of alginic acid is present in the free state: suitable proportions are, for instance from 0.1 per cent to 5 per cent of acetic acid. with regard to the cation-active compound employed I have found that from 0.01 per cent to 0.1 per cent in the spinning bath is a suitable range, but larger quantitles may be used, provided no substantial proportion thereof is salted out by the calcium chloride.
The following examples illustrate the nature of the present invention, although the invention is not restricted to these examples.
Example 1 8060" in such a manner that it is stretched 37 59 541.848
2 per cent and collected in a spinning box. The yam thus obtained is reeled into skeins and washed with a solution of 0.1.per cent of calcium chloride at 80 centigrade. The skeins are dried at room temperature and conditioned at 65? relative humidity. The dry yarn is free from stuck filaments.
Example 2 The conditions of spinning are the same as in Example 1 except that the spinning bath contains 5 per cent of calcium chloride 0.2 per cent of acetic acid and 0.02 per cent of undecylglycxaline hydrochloride and is used at 27 centigrade. The yarn is washed with a solution containing 0.1 per cent of calcium chloride at 85 centigrade, air-dried and conditioned. The dry yarn is free from stuck filaments.
If'in either of the foregoing examples the liquid used for washing the threads contains traces of alkali metals and/or magnesium, a small proportion, say 0.02 per cent to 0.05 per cent of a cationactive substance should be added to the washing liquid. v
What I claim is:
A process of producing alginate threads free from stuck filaments which comprises extruding a solution of sodium alginate through a multihole jet into a coagulating bath consisting of water, about 5% of calcium chloride, from 0.01% to 0.10% of cetyl pyridinium chloride and from 0.1% to 5% of acetic acid and thereafter collecting the threads formed in a centrifugal spinning box.
ERNEST EDWARD TALLIS.
REFERENCES CITED file of this patent:
UNITED STATES rs'mn'rs Number Name Date 2,125,031 Polak et al. July 2c, 1938 5 2,145,855 Bley res. 7, 1939 2,371,717 Speakman' Mar. 20, 1945 FOREIGN ra'rrmrs Number Country Date 767,875 France May 7, 1934 Great Britain Dec. 15, 1941
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2764/43A GB568177A (en) | 1943-02-19 | 1943-02-19 | Improvements in and relating to the manufacture of threads, filaments, films and thelike from alginates |
Publications (1)
Publication Number | Publication Date |
---|---|
US2422993A true US2422993A (en) | 1947-06-24 |
Family
ID=9745453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US513465A Expired - Lifetime US2422993A (en) | 1943-02-19 | 1943-12-08 | Manufacture of threads, filaments, films, and the like from alginates |
Country Status (3)
Country | Link |
---|---|
US (1) | US2422993A (en) |
DE (1) | DE930944C (en) |
GB (1) | GB568177A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU546556B2 (en) * | 1981-08-18 | 1985-09-05 | Courtaulds Plc | Alginate fibre material and process |
US5238685A (en) * | 1988-08-31 | 1993-08-24 | Britcair Limited | Wound dressing |
EP0454358A3 (en) * | 1990-04-23 | 1993-01-13 | Merck & Co. Inc. | Polysaccharide fibers |
GB9422343D0 (en) * | 1994-11-02 | 1994-12-21 | Merck Sharp & Dohme | Alginate ropes, method of preparation and use |
US5688923A (en) * | 1996-02-15 | 1997-11-18 | Hercules Incorporated | Pectin fibers |
CA2323382C (en) | 2000-10-17 | 2004-04-13 | Pharma Mag Inc. | Wound dressing |
US7452374B2 (en) | 2003-04-24 | 2008-11-18 | Maquet Cardiovascular, Llc | AV grafts with rapid post-operative self-sealing capabilities |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR767875A (en) * | 1934-07-25 | |||
US2125031A (en) * | 1935-02-16 | 1938-07-26 | American Enka Corp | Manufacture of artificial silk |
US2145855A (en) * | 1936-01-20 | 1939-02-07 | North American Rayon Corp | Fibroin spinning solutions |
GB541848A (en) * | 1940-06-12 | 1941-12-15 | John Bamber Speakman | Improvements in the manufacture of spun textile fibres |
US2371717A (en) * | 1940-06-12 | 1945-03-20 | Cefoil Ltd | Manufacture of spun textile fibers |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2036922A (en) * | 1935-01-31 | 1936-04-07 | Kelco Co | Alginic acid and process of making same |
GB492264A (en) * | 1937-03-13 | 1938-09-13 | Cyril Wilfred Bonniksen | Improvements in or relating to the production of films of alginic material |
US2319168A (en) * | 1940-06-12 | 1943-05-11 | Cefoil Ltd | Manufacture of textile fibers |
-
1943
- 1943-02-19 GB GB2764/43A patent/GB568177A/en not_active Expired
- 1943-12-08 US US513465A patent/US2422993A/en not_active Expired - Lifetime
-
1948
- 1948-12-31 DE DEP28717D patent/DE930944C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR767875A (en) * | 1934-07-25 | |||
US2125031A (en) * | 1935-02-16 | 1938-07-26 | American Enka Corp | Manufacture of artificial silk |
US2145855A (en) * | 1936-01-20 | 1939-02-07 | North American Rayon Corp | Fibroin spinning solutions |
GB541848A (en) * | 1940-06-12 | 1941-12-15 | John Bamber Speakman | Improvements in the manufacture of spun textile fibres |
US2371717A (en) * | 1940-06-12 | 1945-03-20 | Cefoil Ltd | Manufacture of spun textile fibers |
Also Published As
Publication number | Publication date |
---|---|
DE930944C (en) | 1955-07-28 |
GB568177A (en) | 1945-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB685631A (en) | Improvements in or relating to the spinning of viscose | |
GB264161A (en) | Manufacture of artificial materials from viscose | |
US2422993A (en) | Manufacture of threads, filaments, films, and the like from alginates | |
US2420949A (en) | Carboxyalkyl cellulose ether fibers and films of good wet strength | |
NO118271B (en) | ||
US2452130A (en) | Method of spinning high tenacity viscose rayon | |
US2327516A (en) | Manufacture of artificial filaments and fibers from viscose | |
US2632686A (en) | Production of artificial threads, films, and the like | |
US3018158A (en) | Viscose process | |
US3146116A (en) | Cyanoethylation and xanthation of alkali cellulose | |
US1936753A (en) | Method of making silk products | |
US2287839A (en) | Process of spinning | |
US2489310A (en) | Spinning assistants | |
US2375650A (en) | Manufacture and production of artificial filaments, threads, films, and the like | |
US2064356A (en) | Cellulosic materials and methods for producing same | |
US2813038A (en) | Production of artificial filaments, threads and the like | |
US2953464A (en) | Fire-retardant cellulosic compositions and process for producing fire-retard-ant cellulsoic structures therefrom | |
US2002822A (en) | Artificial products of regenerated cellulose | |
GB475368A (en) | Improvements in or relating to the manufacture of threads and films made from cellulose acetate | |
US2849274A (en) | Producing all skin viscose rayon | |
US2952880A (en) | Fire-retardant cellulosic compositions and process for producing fire-retardant cellulosic structures therefrom | |
US2570443A (en) | Method of producing products of animal fibers | |
US2170752A (en) | Filament of rayon from viscose | |
US2017804A (en) | Delustered artificial silk yarn | |
US2914375A (en) | Manufacture of viscose thread |