US2686104A - Elimination of black specks from textile yarn - Google Patents
Elimination of black specks from textile yarn Download PDFInfo
- Publication number
- US2686104A US2686104A US216676A US21667651A US2686104A US 2686104 A US2686104 A US 2686104A US 216676 A US216676 A US 216676A US 21667651 A US21667651 A US 21667651A US 2686104 A US2686104 A US 2686104A
- Authority
- US
- United States
- Prior art keywords
- yarn
- bath
- lead
- specks
- formation
- 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
- 230000008030 elimination Effects 0.000 title description 2
- 238000003379 elimination reaction Methods 0.000 title description 2
- 239000004753 textile Substances 0.000 title description 2
- 238000000034 method Methods 0.000 claims description 17
- 238000009987 spinning Methods 0.000 claims description 12
- 229920000297 Rayon Polymers 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical compound OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 claims description 11
- -1 SALICYL COMPOUND Chemical class 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 8
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 claims description 4
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 4
- 229960004889 salicylic acid Drugs 0.000 claims description 4
- 150000004985 diamines Chemical class 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 6
- VEUMANXWQDHAJV-UHFFFAOYSA-N 2-[2-[(2-hydroxyphenyl)methylideneamino]ethyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCN=CC1=CC=CC=C1O VEUMANXWQDHAJV-UHFFFAOYSA-N 0.000 description 4
- 239000010802 sludge Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- WAKHLWOJMHVUJC-SQFISAMPSA-N (2z)-2-hydroxyimino-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(=N/O)/C(O)C1=CC=CC=C1 WAKHLWOJMHVUJC-SQFISAMPSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 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
- 150000001299 aldehydes Chemical class 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
- 238000004061 bleaching Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- GDEBSAWXIHEMNF-UHFFFAOYSA-O cupferron Chemical compound [NH4+].O=NN([O-])C1=CC=CC=C1 GDEBSAWXIHEMNF-UHFFFAOYSA-O 0.000 description 1
- JGUQDUKBUKFFRO-CIIODKQPSA-N dimethylglyoxime Chemical compound O/N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-CIIODKQPSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229940056932 lead sulfide Drugs 0.000 description 1
- 229910052981 lead sulfide Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
Definitions
- This invention relates to a method of eliminating black specks and stains from viscose rayon yarn.
- the objects of this invention are accomplished by incorporating in any of the usual acid salt spinning baths, used in the viscose rayon process, from 0.01% to 0.1% of the weight of the bath of a salicyl compound of the group consisting of salicylic acid, salicylaldehyde, salicylal ethanolamine, disalicylal ethylene diamine and disalicylal propylene diamine.
- a salicyl compound of the group consisting of salicylic acid, salicylaldehyde, salicylal ethanolamine, disalicylal ethylene diamine and disalicylal propylene diamine are particularly desirable but nevertheless effective compounds which may be used.
- those containing at least 20% oxygen are more effective, and those containing aldehyde oxygen are preferred.
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 Aug. 10, 1954 ELIMINATIONOF BLACK SPECKS FROM TEXTILE YARN Robert Ellis Clark, Midlothian, E. I. du Pont de Nemours &
Va., assignor to Company, Wilmington, Del., a corporation of Delaware No Drawing. Application March 20, 1951, Serial No. 216,676
6 Claims. 1
This invention relates to a method of eliminating black specks and stains from viscose rayon yarn.
The formation of dark specks on viscose rayon yarn has led to a great deal of study and research to develop a speck-free yarn. While it has been understood that the specks are caused by the presence of lead in the spinning bath, which is picked up by the yarn and converted to dark specks when the lead reacts with sulfide ions in the desulfuring step of the process, many proposals to alleviate this condition have proven ineffective or uneconomical for commercial use. The elimination of lead from the bath is quite impossible in view of the large amounts of lead pipes, tanks and other lead equipment installed. The dissolution of lead from the yarn prior to the formation of the insoluble lead sulfide has not proven effective or economically sound.
It is, therefore, an object of this invention to provide an improved spinning bath composition which will substantially prevent the formation of dark specks in the finished yarn. Other objects will be apparent from the following description and the appended claims.
The objects of this invention are accomplished by incorporating in any of the usual acid salt spinning baths, used in the viscose rayon process, from 0.01% to 0.1% of the weight of the bath of a salicyl compound of the group consisting of salicylic acid, salicylaldehyde, salicylal ethanolamine, disalicylal ethylene diamine and disalicylal propylene diamine. Less desirable but nevertheless effective compounds which may be used are dimethyl glyoxime, diacetone alcohol, alpha benzoin oxime and ammonium nitroso-B- phenylhydroxylamine (cupferron). Of the compounds listed, those containing at least 20% oxygen are more effective, and those containing aldehyde oxygen are preferred.
The formation of dark specks seems to be definitely tied in with the presence of soluble lead in the bath which precipitates on the gel yarn and is not removed by washing. Presence of lead in this form can be easily determined by analyzing the bath sludge for lead, and it has been shown by numerous tests that the amount of lead in the sludge can be reduced to one tenth or less by the addition of about 0.05% of one of the above listed compounds to the bath. Together with this reduction of lead in the bath sludge, finished yarns substantially free from specks are produced.
The introduction of the compounds abovementioned to the acid salt spinning baths, which may or may not contain zinc sulfate, glucose or other ingredients sometimes used therein, is simply made since all of these compounds except disalicylal ethylene diamine are soluble therein. To incorporate disalicylal ethylene diamine it is first dissolved in dilute aqueous caustic solution, neutralized with sulfuric acid or bath liquor, and then this resulting solution is added to the bath. Spinning of the viscose is conducted in the usual manner and the yarn produced subjected to the customary washing, desulfuring and, if desired, bleaching treatments and dried.
Since many different embodiments of the invention may be made without departing from the spirit and scope thereof, it is to be understood that the invention is not limited by the specific illustrations except to the extent defined in the following claims.
What is claimed is:
1. In the process of spinning viscose rayon into an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of a salicyl compound of the group consisting of salicylic acid, salicylaldehyde, salicylal ethanolamine, disalicylal ethylene diamine and disalicylal propylene diamine the quantities of salicyl compound employed in the process being suitable to avoid the formation of lead specks in the finished yarn Without otherwise changing the properties of the yarn.
2. In the process of spinning viscose rayon into an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of salicylic acid the quantities of salicyl compound employed in the process being suitable to avoid the formation of lead specks in the finished yarn without otherwise changing the properties of the yarn.
3. In the process of spinning viscose rayon into an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of salicylaldehyde the quantities of salicyl compound employed in the process being suitable to avoid the formation of lead specks in the finished yarn without otherwise changing th properties of the yarn.
4. In the process of spinning viscose rayon into an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of salicylalethanolamine the quantities of salicyl compound employed in the process being suitable to avoid the formation of lead specks in the finished yarn without otherwise changing the properties of the yarn.
5. In the process of spinning viscose rayon into assent);
3 an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of disalioylal ethylene diamine the quantities of salieyl compound employed in the process being suitable to avoid the formation of lead specks in the finished yarn without otherwise changing the properties of the yarn.
6. In the process of spinning viscose rayon into an acid salt bath, the improvement of incorporating solely in the bath from 0.01% to 0.1% of disalicylal propylene diamine the quantities of salicyl compound employed in the process being suitable to avoid the formation of lead specks 4 in the finished yarn without otherwise changing the properties of the yarn.
References Cited in the file of this patent UNITED STATES PATENTS Name Date Schuette et al Sept. 13, 1938 OTHER REFERENCES Die Kunstliche Seide, 5th edition Erster Erganzungsband (1931) by Dr. K. Suvern; page 146, paragraph 273.
Number
Claims (1)
1. IN THE PROCESS OF SPINNING VISCOSE RAYON INTO AN ACID SALT BATH, THE IMPROVEMENT OF INCORPORATING SOLELY IN THE BATH FROM 0.01% TO 0.1% OF A SALICYL COMPOUND OF THE GROUP CONSISTING OF SALICYLIC ACID, SALICYLALDEHYDE, SALICYLAL ETHANOLAMINE, DISALICYLAL EHTYLENE DIAMINE AND DISALICYLAL PROPYLENE DIAMINE THE QUANTITIES OF SALICYL COMPOUND EMPLOYED IN THE PROCESS BEING SUITABLE TO AVOID THE FORMATION OF LEAD SPEAKS IN THE FINISHED YARN WITHOUT OTHERWISE CHANGING THE PROPERTIES OF THE YARN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US216676A US2686104A (en) | 1951-03-20 | 1951-03-20 | Elimination of black specks from textile yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US216676A US2686104A (en) | 1951-03-20 | 1951-03-20 | Elimination of black specks from textile yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2686104A true US2686104A (en) | 1954-08-10 |
Family
ID=22808047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US216676A Expired - Lifetime US2686104A (en) | 1951-03-20 | 1951-03-20 | Elimination of black specks from textile yarn |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2686104A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852333A (en) * | 1954-05-21 | 1958-09-16 | Du Pont | Viscose spinning process |
| US2958569A (en) * | 1954-10-20 | 1960-11-01 | American Enka Corp | Production of threads and other shaped objects from viscose |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2129709A (en) * | 1938-09-13 | Production of new high molecular |
-
1951
- 1951-03-20 US US216676A patent/US2686104A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2129709A (en) * | 1938-09-13 | Production of new high molecular |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852333A (en) * | 1954-05-21 | 1958-09-16 | Du Pont | Viscose spinning process |
| US2958569A (en) * | 1954-10-20 | 1960-11-01 | American Enka Corp | Production of threads and other shaped objects from viscose |
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