US2398625A - Process for spinning proteins - Google Patents
Process for spinning proteins Download PDFInfo
- Publication number
- US2398625A US2398625A US257030A US25703039A US2398625A US 2398625 A US2398625 A US 2398625A US 257030 A US257030 A US 257030A US 25703039 A US25703039 A US 25703039A US 2398625 A US2398625 A US 2398625A
- Authority
- US
- United States
- Prior art keywords
- spinning
- proteins
- solution
- baths
- casein
- 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
- 238000009987 spinning Methods 0.000 title description 26
- 108090000623 proteins and genes Proteins 0.000 title description 6
- 102000004169 proteins and genes Human genes 0.000 title description 6
- 238000000034 method Methods 0.000 title description 3
- 239000000243 solution Substances 0.000 description 11
- 239000005018 casein Substances 0.000 description 6
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 6
- 235000021240 caseins Nutrition 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 235000018102 proteins Nutrition 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000012460 protein solution Substances 0.000 description 2
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 description 1
- 108010082495 Dietary Plant Proteins Proteins 0.000 description 1
- 108010028690 Fish Proteins Proteins 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000772415 Neovison vison Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229940001447 lactate Drugs 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- 229920002994 synthetic fiber Polymers 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
- D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
Definitions
- This invention relates to an improved process for producing artificial fibres such as filaments, threads and the like by spinning protein solutions, particularly casein solutions.
- Protein solutions coming into consideration for spinning fibres are prepared by dissolving proteins suitable or rendered suitable to this efiect, for instance casein or other animal or vegetable proteins, such as fish proteins and soya protein, in diluted alkaline solution. Moreover inorganic or organic substances may be added to these solutions, which substances influence the spinning process or the products obtained in some way or other. Such a solution is then spun in an acid spinning bath, consisting as generally known of solutions of strong acids, salts and if desired organic substances. Also spinning baths have been proposed, consisting of mixtures of alcohol and organic acids. Since these latter baths are however impractical and uneconomic the first mentioned baths are generally preferred.
- the spinning bath may according to my invention also consist of a solution of organic salts with or without inorganic salts, to which only such an amount of inorganic acid and if desired organic acid is added that the pH value of the spinning bath is more than 2 and preferably above 2.7 or even above 3.0.
- the spinning baths according to the invention may contain organic substances substantially not influencing the pH value, such as for instance alcohol, glycerol, glucose, urea and the like.
- An example of a spinning bath for use according to my invention is an aqueous solution con- Shrinkage Maxl- Mink of the s inningbatb Tern 8552?; 11 $831111? as we e:
- rcen 0 obtained obtained ⁇ EB length spun 6 7 ti id C. M/mln. Percent ace cac 20%61182804 The fibres so obtained were of very good quality.
- a process for the production of protein products of low shrinkage characteristics comprising spinning a solution of protein material in dilute alkali into an aqueous spinning bath containing 5% of lactic acid, 5% of sodium lactate and 15% of magnesium sulphate in solution therein.
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 Apro 16, 1946 2,398,625 rnocnss FOR. SPINNING raornms George Stephan de Kadt, Leeuwarden, the Netherlands; vested in the Alien Property Custo- No Drawing. Application February 17, 1939, Se-
rial No. 257,030. In the Netherlands March 1,
2 Claims.
This invention relates to an improved process for producing artificial fibres such as filaments, threads and the like by spinning protein solutions, particularly casein solutions.
Protein solutions coming into consideration for spinning fibres are prepared by dissolving proteins suitable or rendered suitable to this efiect, for instance casein or other animal or vegetable proteins, such as fish proteins and soya protein, in diluted alkaline solution. Moreover inorganic or organic substances may be added to these solutions, which substances influence the spinning process or the products obtained in some way or other. Such a solution is then spun in an acid spinning bath, consisting as generally known of solutions of strong acids, salts and if desired organic substances. Also spinning baths have been proposed, consisting of mixtures of alcohol and organic acids. Since these latter baths are however impractical and uneconomic the first mentioned baths are generally preferred.
It has, however, not sufliciently been realised, that proteins are amphoteric substances maintaining also in strongly acid medium a certain hydration degree and which therefore insufliciently dehydrate in the above-mentioned spinning baths. The result is with such baths 1 that an insufilcient spinning speed is obtained, 2 the stretching of the thread is restricted and 3' the fibre has a very high shrinkage resulting in fibres which after this shrinkage has been completed, may be more than 100% thicker than the fibres obtained during spinning.
Obviously these three drawbacks will not appear in the same degree with all compositions of spinning baths.- Thus the following data were I found by spinning a 16% casein solution:
These figures sufliciently show the drawbacks of the above type of spinning bath and it will be clear that it is of great importance to provide for a spinning bath type having these drawbacks not at all or in much less degree.
By my invention I succeeded in this respect by making use of spinning baths consisting of a solution of organic and/or inorganic salts to, which only such an amount of one or more organic acids has been added, that the pH value of the spinning bath is more than 2 and preferably above 2.7 or even above 3.0. The spinning bath may according to my invention also consist of a solution of organic salts with or without inorganic salts, to which only such an amount of inorganic acid and if desired organic acid is added that the pH value of the spinning bath is more than 2 and preferably above 2.7 or even above 3.0.
Moreover the spinning baths according to the invention may contain organic substances substantially not influencing the pH value, such as for instance alcohol, glycerol, glucose, urea and the like.
Though the pH value of these baths comes very close to the isoelectric point of casein i. e. the point at which the hydration of casein should be a minimum and which corresponds to a pH value of 4.6 to 4.7 I have found by many experiments that besides the low acidity also the salt content is of considerable importance since the spinning bath which for instance only contains organic acid is, without salt, not at all utilisable for spinning or gives very unsatisfactory results.
An example of a spinning bath for use according to my invention is an aqueous solution con- Shrinkage Maxl- Mink of the s inningbatb Tern 8552?; 11 $831111? as we e:
rcen 0 obtained obtained {EB length spun 6 7 ti id C. M/mln. Percent ace cac 20%61182804 The fibres so obtained were of very good quality.
spinning a solution of casein in dilute alkali into 10 an aqueous spinning bath having a pH higher than 2 and containing lactic acid, a. lactate and an inorganic salt in solution therein.
2. A process for the production of protein products of low shrinkage characteristics comprising spinning a solution of protein material in dilute alkali into an aqueous spinning bath containing 5% of lactic acid, 5% of sodium lactate and 15% of magnesium sulphate in solution therein.
GEORGE STEPHAN DE KADT.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL525157X | 1938-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2398625A true US2398625A (en) | 1946-04-16 |
Family
ID=19787053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US257030A Expired - Lifetime US2398625A (en) | 1938-03-01 | 1939-02-17 | Process for spinning proteins |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2398625A (en) |
| BE (1) | BE432982A (en) |
| FR (1) | FR850812A (en) |
| GB (1) | GB525157A (en) |
| NL (1) | NL53376C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2495767A (en) * | 1946-08-09 | 1950-01-31 | Reid John David | Preparation of fibers from carboxymethylcellulose |
| US3179728A (en) * | 1962-02-07 | 1965-04-20 | Donini Sandro | Process for the preparation of proteinureic fibres and mixed protein-ureic cellulosic fibres |
| US4125634A (en) * | 1976-04-21 | 1978-11-14 | Biotechnical Processes Limited | Coagulation and flavoring of spun protein fibers |
| CN115434061A (en) * | 2022-09-30 | 2022-12-06 | 高梵(浙江)信息技术有限公司 | Volcanic rock blended fabric and production method thereof |
-
0
- BE BE432982D patent/BE432982A/xx unknown
- NL NL53376D patent/NL53376C/xx active
-
1939
- 1939-02-15 GB GB5017/39A patent/GB525157A/en not_active Expired
- 1939-02-17 US US257030A patent/US2398625A/en not_active Expired - Lifetime
- 1939-02-24 FR FR850812D patent/FR850812A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2495767A (en) * | 1946-08-09 | 1950-01-31 | Reid John David | Preparation of fibers from carboxymethylcellulose |
| US3179728A (en) * | 1962-02-07 | 1965-04-20 | Donini Sandro | Process for the preparation of proteinureic fibres and mixed protein-ureic cellulosic fibres |
| US4125634A (en) * | 1976-04-21 | 1978-11-14 | Biotechnical Processes Limited | Coagulation and flavoring of spun protein fibers |
| CN115434061A (en) * | 2022-09-30 | 2022-12-06 | 高梵(浙江)信息技术有限公司 | Volcanic rock blended fabric and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| NL53376C (en) | |
| FR850812A (en) | 1939-12-27 |
| GB525157A (en) | 1940-08-22 |
| BE432982A (en) |
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