US2128612A - Process of desulphurizing artificial silk of viscose - Google Patents
Process of desulphurizing artificial silk of viscose Download PDFInfo
- Publication number
- US2128612A US2128612A US44462A US4446235A US2128612A US 2128612 A US2128612 A US 2128612A US 44462 A US44462 A US 44462A US 4446235 A US4446235 A US 4446235A US 2128612 A US2128612 A US 2128612A
- Authority
- US
- United States
- Prior art keywords
- viscose
- desulphurizing
- acid
- artificial silk
- per cent
- 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
- 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 a process of desulphurizing artificial silk from viscose.
- Such wetting agents are particularly the sodium xanthates of the higher aliphatic alcohols, aromatic alcohols, hydroaromatic alcohols, cyclic and heterocyclic alcohols, for instance, the sodium xanthates of octylalcohol, of decylalcohol, of borneol, of mental, of fenchyl alcohol, of furfuryl alcohol, of naphthene alcohol, of dekahydronaphthol, of methylcyclohexanol, of hexahydroisothymol, of phenyl-ethyl alcohol and of phenylpropyl alcohol; alkylated and alkoxylated arcmatic and hydroaromatic sulphonic acids, for instance, benzy
- the compounds are added to the viscose in an amount of 0.1 to 0.3% calculated on the viscose.
- the compounds are suitable for desulphurization of artifi cial silk made from any viscose, ripened viscose as well as unripened viscose.
- the viscose is spun in the usual manner and after-treated while omitting the usual desulphurizing bath. Contrary to the usual practice the soap bath is not heated but is used at a temperature of 15 to 25 C.
- the usual soap baths may be used, for instance, sodium oleate, Monopol Oil (registered trade-mark) or Marseilles soap (registered trade-mark)
- the artificial silk may be treated in the form of hanks or on spools or cops. In the latter case the liquid is forced through the windings by pressure or suction.
- EmampZa-A viscose made from sulphite cellulose and containing 7.5 per cent of cellulose, 6.5 per cent of sodium hydroxide and 0.25 per cent of the sodium salt of borneoyl xanthate is spun to artificial silk in a bath containing 13 per cent of sulphuric acid and 30 per cent of Na2SO4.
- the spun fibers are washed free from acid and treated with a solution of the sodium salt of sulphonated olive-oil of 0.75 per cent strength at 20 C. in the course of 1 hours, whereby they are completely desulphurized.
- the viscose may also contain 0.3 per cent of Turkey red oil or 0.2 per cent of sodium alkyl-naphthalene-sulphonate.
- a process of desulphurizing artificial silk which comprises dissolving in viscose 0.25 per cent of sodium borneol xanthate, spinning said viscose into a precipitating bath, Washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
- a process of desulphurizing artificial silk which comprises dissolving in viscose 0.3 per cent of Turkey red oil, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
- a process of desulphurizing artificial silk which comprises dissolving in viscose 0.2 per cent of sodium alkyl-naphthalene-sulphonate, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
- a process of desulphurizing artificial silk which comprises incorporating in viscose a wetting agent soluble in viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 to 25 C.
- a process of desulphurizing artificial silk which comprises incorporating in viscose a sodium xanthate of a cyclic alcohol soluble in the viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 'to 25 C.
- a process of desulphurizing artificial silk which comprises incorporating in viscose a salt of an alkylated aromatic sulphonic acid soluble in the viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 to 25 C.
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)
Description
Patented Aug. 30, 1938 UNITED STATES PROCESS OF DESULPHURIZING ARTIFI- CIAL SILK F VISCOSE Emil Hubert, Dessau-Ziebigk, and Hermann Hecht, Dessau, Germany, assignors to I. G.
Farbenindustrie Aktiengesellschaft,
Frankfort-on-the-Main, Germany No Drawing. Application October 10, 1935, Serial No. 44,462. In Germany October 13, 1934 6 Claims.
Our present invention relates to a process of desulphurizing artificial silk from viscose.
One of its objects is an improved process of desulphurizing artificial silk from viscose. Further objects will be seen from the detailed specification following hereafter.
We have found that artificial silk spun from viscose to which a Wetting agent soluble in the viscose has been added can be desulphurized in the usual after-treatment by the mere treatment with a soap solution at a temperature of 15 to 25 0. Such wetting agents are particularly the sodium xanthates of the higher aliphatic alcohols, aromatic alcohols, hydroaromatic alcohols, cyclic and heterocyclic alcohols, for instance, the sodium xanthates of octylalcohol, of decylalcohol, of borneol, of mental, of fenchyl alcohol, of furfuryl alcohol, of naphthene alcohol, of dekahydronaphthol, of methylcyclohexanol, of hexahydroisothymol, of phenyl-ethyl alcohol and of phenylpropyl alcohol; alkylated and alkoxylated arcmatic and hydroaromatic sulphonic acids, for instance, benzylnaphthalenesulphonic acid, diisopropylbenzenesulphonic acid, dialky1naphtha lenesulphonic acid and dodecylnaphthalenesulphonic acid; alcohols such as glycerine and glycol; unsaturated organic compounds, for instance, allyl alcohol, cinnamic alcohol, acrylic acid, crotonic acid, soya-oleic acid, and the sodium salt of 30 benzenesulphinic acid; cholic acid, glycocholic acid, naphthenic acid, and the salts and derivatives of these acids; sulphonated castor oil and the salts of the sulphonated products. The compounds are added to the viscose in an amount of 0.1 to 0.3% calculated on the viscose. The compounds are suitable for desulphurization of artifi cial silk made from any viscose, ripened viscose as well as unripened viscose. The viscose is spun in the usual manner and after-treated while omitting the usual desulphurizing bath. Contrary to the usual practice the soap bath is not heated but is used at a temperature of 15 to 25 C. The usual soap baths may be used, for instance, sodium oleate, Monopol Oil (registered trade-mark) or Marseilles soap (registered trade-mark) The artificial silk may be treated in the form of hanks or on spools or cops. In the latter case the liquid is forced through the windings by pressure or suction.
EmampZa-A viscose made from sulphite cellulose and containing 7.5 per cent of cellulose, 6.5 per cent of sodium hydroxide and 0.25 per cent of the sodium salt of borneoyl xanthate is spun to artificial silk in a bath containing 13 per cent of sulphuric acid and 30 per cent of Na2SO4. The spun fibers are washed free from acid and treated with a solution of the sodium salt of sulphonated olive-oil of 0.75 per cent strength at 20 C. in the course of 1 hours, whereby they are completely desulphurized. Instead of the sodium salt of borneol xanthate the viscose may also contain 0.3 per cent of Turkey red oil or 0.2 per cent of sodium alkyl-naphthalene-sulphonate.
What we claim is:
1. A process of desulphurizing artificial silk which comprises dissolving in viscose 0.25 per cent of sodium borneol xanthate, spinning said viscose into a precipitating bath, Washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
2. A process of desulphurizing artificial silk which comprises dissolving in viscose 0.3 per cent of Turkey red oil, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
3. A process of desulphurizing artificial silk which comprises dissolving in viscose 0.2 per cent of sodium alkyl-naphthalene-sulphonate, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid and desulphurizing the deacidified threads only by treatment with a 0.7 per cent solution of the sodium salt of sulphonated olive-oil at 20 C. for 1 hours.
4. A process of desulphurizing artificial silk which comprises incorporating in viscose a wetting agent soluble in viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 to 25 C.
5. A process of desulphurizing artificial silk which comprises incorporating in viscose a sodium xanthate of a cyclic alcohol soluble in the viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 'to 25 C.
6. A process of desulphurizing artificial silk Which comprises incorporating in viscose a salt of an alkylated aromatic sulphonic acid soluble in the viscose, spinning said viscose into a precipitating bath, washing the threads thus obtained free from acid, and desulphurizing the deacidified threads only by treatment with a soap solution at 15 to 25 C.
EMIL HUBERT. HERMANN I-IECI-IT.
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 |
---|---|
US2128612A true US2128612A (en) | 1938-08-30 |
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 Before (1)
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 |
Country Status (4)
Country | Link |
---|---|
US (2) | US2092203A (en) |
BE (1) | BE406095A (en) |
FR (1) | FR783563A (en) |
GB (1) | GB446757A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2670266A (en) * | 1949-12-08 | 1954-02-23 | Du Pont | Textile bleach-finish process |
Families Citing this family (3)
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 |
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/en not_active Expired
-
1935
- 1935-10-10 US US44462A patent/US2128612A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2670266A (en) * | 1949-12-08 | 1954-02-23 | Du Pont | Textile bleach-finish process |
Also Published As
Publication number | Publication date |
---|---|
GB446757A (en) | 1936-05-05 |
BE406095A (en) | |
US2092203A (en) | 1937-09-07 |
FR783563A (en) | 1935-07-16 |
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