US2092203A - Process for the desulphurization and after-treatment of viscose artificial silk - Google Patents
Process for the desulphurization and after-treatment of viscose artificial silk Download PDFInfo
- Publication number
- US2092203A US2092203A US751784A US75178434A US2092203A US 2092203 A US2092203 A US 2092203A US 751784 A US751784 A US 751784A US 75178434 A US75178434 A US 75178434A US 2092203 A US2092203 A US 2092203A
- Authority
- US
- United States
- Prior art keywords
- acid
- artificial silk
- viscose
- desulphurization
- sulphur
- 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
- 229920002955 Art silk Polymers 0.000 title description 22
- 229920000297 Rayon Polymers 0.000 title description 20
- 238000000034 method Methods 0.000 title description 13
- 230000008569 process Effects 0.000 title description 13
- 239000000126 substance Substances 0.000 description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 16
- 239000005864 Sulphur Substances 0.000 description 16
- 239000002253 acid Substances 0.000 description 13
- 230000007935 neutral effect Effects 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 229920000151 polyglycol Polymers 0.000 description 6
- 239000010695 polyglycol Substances 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- -1 aromatic aminosulphonic acids Chemical class 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- DFKNUKQYBKNNMA-UHFFFAOYSA-N 2,3-di(propan-2-yl)benzenesulfonic acid Chemical compound CC(C)C1=CC=CC(S(O)(=O)=O)=C1C(C)C DFKNUKQYBKNNMA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BHQCQFFYRZLCQQ-UHFFFAOYSA-N (3alpha,5alpha,7alpha,12alpha)-3,7,12-trihydroxy-cholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 BHQCQFFYRZLCQQ-UHFFFAOYSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- MLFIYYDKLNZLAO-UHFFFAOYSA-N 2-aminoethane-1,1-diol Chemical compound NCC(O)O MLFIYYDKLNZLAO-UHFFFAOYSA-N 0.000 description 1
- CBCZQJLYYRPMRI-UHFFFAOYSA-N 2-benzylnaphthalene-1-sulfonic acid Chemical compound C1=CC2=CC=CC=C2C(S(=O)(=O)O)=C1CC1=CC=CC=C1 CBCZQJLYYRPMRI-UHFFFAOYSA-N 0.000 description 1
- WHKKNVAGWPTSRS-UHFFFAOYSA-N 2-dodecylnaphthalene-1-sulfonic acid Chemical compound C1=CC=CC2=C(S(O)(=O)=O)C(CCCCCCCCCCCC)=CC=C21 WHKKNVAGWPTSRS-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- XXCKDROXZPWADW-UHFFFAOYSA-N 4-amino-2-dodecylnaphthalene-1-sulfonic acid Chemical compound C(CCCCCCCCCCC)C1=C(S(=O)(=O)O)C2=CC=CC=C2C(=C1)N XXCKDROXZPWADW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004380 Cholic acid Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 108010007979 Glycocholic Acid Proteins 0.000 description 1
- RFDAIACWWDREDC-UHFFFAOYSA-N Na salt-Glycocholic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(=O)NCC(O)=O)C)C1(C)C(O)C2 RFDAIACWWDREDC-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940051881 anilide analgesics and antipyretics Drugs 0.000 description 1
- 150000003931 anilides Chemical class 0.000 description 1
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019416 cholic acid Nutrition 0.000 description 1
- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 description 1
- 229960002471 cholic acid Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- SFLMUHDGSQZDOW-IBEHDNSVSA-N coniferoside Natural products COC1=CC(C=CCO)=CC=C1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 SFLMUHDGSQZDOW-IBEHDNSVSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- KXGVEGMKQFWNSR-UHFFFAOYSA-N deoxycholic acid Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 KXGVEGMKQFWNSR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- RFDAIACWWDREDC-FRVQLJSFSA-N glycocholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(=O)NCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 RFDAIACWWDREDC-FRVQLJSFSA-N 0.000 description 1
- 229940099347 glycocholic acid Drugs 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002943 palmitic acids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- AOJFQRQNPXYVLM-UHFFFAOYSA-N pyridin-1-ium;chloride Chemical compound [Cl-].C1=CC=[NH+]C=C1 AOJFQRQNPXYVLM-UHFFFAOYSA-N 0.000 description 1
- WBHHMMIMDMUBKC-QJWNTBNXSA-N ricinoleic acid Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(O)=O WBHHMMIMDMUBKC-QJWNTBNXSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 239000012991 xanthate Substances 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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
Definitions
- Our present invention relates to the manufacture of artificial silk from viscose and more particularly to the after-treatment and desuphurization.
- the desulphurizing action is due mainly to the fact that the free alkali or the alkali liberated by hydrolysis first of all converts a small part of the sulphur into sodium sulphide and this in its turn has a solvent action on sulphur.
- This invention relates to a process of desulphurization in which sulphur is substantially completely removed, not by chemical means but by purely physical means by treating the viscose artificial silk with aqueous solutions or colloidal solutions of capillary active substances having an emulsifying action, that is to say, substances which have the capacity of reducing the surface tension of an aqueous solution.
- active solutions of these substances may have a neutral or even an acid reaction
- the desulphurizing action is evidently due to a lowering of the surface tension of the water in respect of sulphur, which follows the addition of the said substances to such an extent that the material is thoroughly wetted, thus providing the preliminary conditions for an emulsification and detachment of the sulphur from the fiber.
- Acid esters of fatty alcohols with polybasic acids for instance phthalic esters.
- Fatty amines of aromatic aminosulphonic acids for instance, laurylnaphthionic acid.
- Alkylated and alkoxylated aromatic and by droaromatic aminosulphonic acids for instance, benzylnaphthalenesulphonic acid, diisopropylbenzene sulphonic acid, or dialkylnapthalenesulphonic acid, dodecylnaphthalenesulphonic acid.
- Fatty acid derivatives of the degradation products of albumens such as lysalbinic acid and prota'lbinic acid.
- Lignine derivatives such as sulphonic acids.
- Amides, anilides, alkylanilides, naphthalides of hydroxy fatty acids such as ricinolic acid are included in the composition.
- Ethanolamides for instance, fatty acid ethanolamides and ethanolamines glycolized with ethylene oxide.
- esters of glycerine and polyglycerine, or of glycol and polyglycol are included in esters of glycerine and polyglycerine, or of glycol and polyglycol.
- the substances may be such which do not dissociate when dissolved in water or they may be salt-like compounds. According to their solubility they may be used in neutral, alkaline or even acid solutions. In order that the desulphurization may be rapid and uniform it has been found to be advantageous to use a concentration of these wetting and washing agents of 5 to grams per liter, and to cause the solution to act upon the artificial silk preferably at a raised temperature, between 60 and 100.
- the form in which the artificial silk is used is immaterial in this operation, it may be already dried or still quite fresh, that is to say only washed neutral; it may be subjected to this desulphurization in the form of a hank, a spool, a centrifugal cake, a continuous thread, a running band, or in the form of a finished textile material. Artificial products such as small hands and foils may also be desulphurized in this manner.
- the efficacy of these substances is not confined to an alkaline reaction or to a pH value of more than 7, but the desulphurization may be carried out under absolutely neutral conditions and also under feebly acid conditions, and if the weak alkaline reaction of certain classes of substances, such as, for example, fatty amines, is disturbing or is not desired, the re action may be pushed as far as or beyond the neutral point by the addition of acid without loss of the desulphurizing action. 6n the other hand, however, there is no objection to the addition of these substances to the hitherto usual desulphurizing baths having a chemical action, for the purpose of improvement or acceleration. However, this possibility will not. generally be considered because thereby the great technical advantage offered by the new process would remain unrealized.
- the wetting and washing agents mainly used for desulphurization will be those which, when the artificial silk isdried, can remain on the fiber and there serve as softening or preparing agent.
- the working-up process of the viscose artificial silk in this stage is shortened to two operations; namely to washing until neutral and removing sulphur, instead of the following sequence of operations hitherto used:washing until neutral, desulphurization, washing, acidifying, washing until neutral and preparing. Consequently, according to the new process, operation under alkaline conditions comes in question practically only when, for certain purposes of preparation, it is advantageous to use a volatile alkali, such as ammonia, or a soap, such as Marseilles soap. 7
- oils and fats such as olive oil, paraffin oil and the like.
- sulphur-removing agents simultaneously and in admixture with other substances; for example organic solvents or bleaching agents, such as hydrogen peroxide.
- two baths may be used, the first bath being a repeatedly used circulating bath, While the second bath is clean and serves at the same time as a supplement and a refresher for the first bath.
- Example 1 Undesulphurized viscose artificial silk in the form of hanks is treated for to 2 hours at '70 to 90 C. with a solution of l to 2 per cent. strength of the sodium salt of mono-oleyl ester of phthalic acid the bath having been previously adjusted to the pI-I-value of 7. An alteration in the adjustment to a pI-I-value of 9.5 to 4.9 does not change the result; in the whole of this range the agent produces a satisfactory desulphurization.
- Example 2 Instead of the agent referred to in Example 1, there is used a solution of approximately 2 per cent. strength of the sodium salt of di-isopropylbenzene-sulphonic acid. With this agent also a good desulphurization is obtained in neutral solution. If the pI-I-value is varied between 6.3 and 9 the result remains unchanged.
- Example 3 Undesulphurized artificial silk is treated with a solution of l per cent. strength of an oxethylamide of a higher fatty acid, such as oleic acid, stearic acid or the like, for 2 hours at C.
- the solution of this oxethylamide is, at neutral point, a stable emulsion; when the pI-I-value falls below the neutral point, as far as pI-I-value 5.1, oily separations occur, but the sulphur removal is not thereby impaired.
- Fatty acid oxethylamides which have been treated with ethylene oxide-behave in a similar manner.
- Example 4 Instead of the aforesaid products there is used an aqueous emulsion of 1.5 to 2 per cent strength of a highly concentrated solution of an alkyl-substituted naphthalene-sulphonic acid in a terpene.
- Example 5 I-Ianks of viscose artificial silk are first treated with a 2 per cent. solution of a polyglycol ether, for instance, oleyl polyglycol ether in accordance with Example 1 and then handled for a further 10 minutes in a solution of similar composition but with an addition of 0.05 per cent of H202 at 80 C.
- the fiber which is completely desulphurized after the first treatment becomes quite white after the second treatment.
- polyglycol ether there may also be used a polyglycol ester, for instance, polyglycol stearic acidester.
- Example 6 -I-Ianks of artificial silk from viscose which have not yet been desulphurized are treated with :a 1 to 2 per cent solution of sojabean lecithine for about 2 hours at '70 to C. After this treatment the hanks are completely de- 2.
- a process of desulphurizing and after treating viscose artificial silk which comprises treating sulphur-containing artificial silk from viscose with a liquid dispersion of an alkylated aromatic sulphonic acid.
- a process of desulphurizing and aftertreating viscose artificial silk which comprises treating sulphur-containing artificial silk from viscose with a liquid dispersion of an ester of a fatty alcohol with a polybasic organic acid.
- a process of desulphurizing and aftertreating viscose artificial silk which comprises treating sulphur-containing artificial silk from viscose with a liquid dispersion of a polyglycerol ether. 7
- a process of desulphurizing and after-treating viscose artificial silk which comprises treating sulphur containing artificial silk from viscose with a slightly basic to neutral to acid aqueous dispersion of an organic substance having the property of reducing the surface tension of an aqueous solution which substance is capable of effecting removal of sulphur from the silk by a purely physical action.
- a process of desulphurizing and after-treating viscose articial silk which comprises treating sulphur containing artificial silk from. viscose with a slightly basic to neutral to acid aqueous dispersion of an organic substance having the property of reducing the surface tension of an aqueous solution which substance is capable of,
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE446757X | 1933-11-09 | ||
| DE2128612X | 1934-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2092203A true US2092203A (en) | 1937-09-07 |
Family
ID=32043847
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US751784A Expired - Lifetime US2092203A (en) | 1933-11-09 | 1934-11-06 | Process for the desulphurization and after-treatment of viscose artificial silk |
| US44462A Expired - Lifetime US2128612A (en) | 1933-11-09 | 1935-10-10 | Process of desulphurizing artificial silk of viscose |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US44462A Expired - Lifetime US2128612A (en) | 1933-11-09 | 1935-10-10 | Process of desulphurizing artificial silk of viscose |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2092203A (en(2012)) |
| BE (1) | BE406095A (en(2012)) |
| FR (1) | FR783563A (en(2012)) |
| GB (1) | GB446757A (en(2012)) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418660A (en) * | 1943-04-24 | 1947-04-08 | Du Pont | Manufacture of regenerated cellulose structures |
| US2585141A (en) * | 1945-09-05 | 1952-02-12 | Celanese Corp | Treatment of viscose products |
| US2670266A (en) * | 1949-12-08 | 1954-02-23 | Du Pont | Textile bleach-finish process |
| US2683072A (en) * | 1950-06-16 | 1954-07-06 | Du Pont | Removal of cs2 with oil from viscose yarn |
-
0
- BE BE406095D patent/BE406095A/xx unknown
-
1934
- 1934-11-05 GB GB31737/34A patent/GB446757A/en not_active Expired
- 1934-11-06 US US751784A patent/US2092203A/en not_active Expired - Lifetime
- 1934-11-07 FR FR783563D patent/FR783563A/fr not_active Expired
-
1935
- 1935-10-10 US US44462A patent/US2128612A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418660A (en) * | 1943-04-24 | 1947-04-08 | Du Pont | Manufacture of regenerated cellulose structures |
| US2585141A (en) * | 1945-09-05 | 1952-02-12 | Celanese Corp | Treatment of viscose products |
| US2670266A (en) * | 1949-12-08 | 1954-02-23 | Du Pont | Textile bleach-finish process |
| US2683072A (en) * | 1950-06-16 | 1954-07-06 | Du Pont | Removal of cs2 with oil from viscose yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| BE406095A (en(2012)) | |
| FR783563A (fr) | 1935-07-16 |
| GB446757A (en) | 1936-05-05 |
| US2128612A (en) | 1938-08-30 |
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