US2022838A - Artificial thread and process of - Google Patents
Artificial thread and process of Download PDFInfo
- Publication number
- US2022838A US2022838A US2022838DA US2022838A US 2022838 A US2022838 A US 2022838A US 2022838D A US2022838D A US 2022838DA US 2022838 A US2022838 A US 2022838A
- Authority
- US
- United States
- Prior art keywords
- thread
- solution
- spinning
- luster
- acid
- 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
- 238000000034 method Methods 0.000 title description 30
- 239000000243 solution Substances 0.000 description 64
- 239000000126 substance Substances 0.000 description 40
- 239000002932 luster Substances 0.000 description 32
- 238000009987 spinning Methods 0.000 description 28
- 229920002678 cellulose Polymers 0.000 description 24
- 239000001913 cellulose Substances 0.000 description 24
- 239000002253 acid Substances 0.000 description 22
- 150000008064 anhydrides Chemical class 0.000 description 22
- 229940081735 acetylcellulose Drugs 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 18
- 238000000578 dry spinning Methods 0.000 description 18
- QIQXTHQIDYTFRH-UHFFFAOYSA-N Stearic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 16
- 229920002301 Cellulose acetate Polymers 0.000 description 12
- WDIHJSXYQDMJHN-UHFFFAOYSA-L Barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 8
- 235000021355 Stearic acid Nutrition 0.000 description 8
- 229910001626 barium chloride Inorganic materials 0.000 description 8
- 150000007524 organic acids Chemical class 0.000 description 8
- 239000008117 stearic acid Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L Barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- -1 barium chloride Chemical class 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 229920002955 Art silk Polymers 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N Boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 2
- CHIHQLCVLOXUJW-UHFFFAOYSA-N benzoic anhydride Chemical compound C=1C=CC=CC=1C(=O)OC(=O)C1=CC=CC=C1 CHIHQLCVLOXUJW-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 230000001112 coagulant Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 230000003467 diminishing Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000001376 precipitating Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-M stearate Chemical compound CCCCCCCCCCCCCCCCCC([O-])=O QIQXTHQIDYTFRH-UHFFFAOYSA-M 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
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
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
- D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process
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 Dec. 3, 1935 UNITED STATES PATENT OFFICE ARTIFICIAL THREAD AND PROCESS OF PRODUCING SAME No Drawing. Application August 19, 1930, Serial No. 476,434. In Germany September 23, 1929 6 Claims.
This invention relates to artificial thread and more particularly to a process of producing artificial thread having a dull or diminished luster.
Prior to this invention, artificial thread having a mat appearance was produced by the wet spinning process by adding opaque substances to the spinning solution or precipitating said substances in the spinning solution. According to other procedures, the opaque substances were formed 10 by spinning a solution containing a substance which reacted with the coagulating bath as it was spun therein.
Processes have also been devised for diminishing the luster of dry spun artificial thread by more or less completely dulling the thread. For instance, it had been proposed to first immerse the finished thread, or fabrics produced therefrom, in a solution of sodium sulphate or sulphuric acid and then in a barium chloride bath,
whereby barium sulphate was precipitated on the surface of the thread. However, the precipitate resulting from this treatment was irregular and, since it was formed only on the surface of the thread, only loosely adhered thereto. To overcome these difficulties it has been further proposed to produce a water-insoluble substance by double decomposition, either directly in the acetyl cellulose or in the spinning solution. The insoluble precipitates produced in this manner must be so fine that they will not clog the spinneret during spinning. In general, this is rather difficult to attain, and when such spinning solutions are spun, the insoluble precipitates are often retained by the filters and the spinnerets clogged.
It had also been proposed to disperse in a finely divided condition solid substances, such as magnesium oxide, insoluble soaps, etc., in the spinning solution. However, such processes required extensive apparatus and furthermore had the dis-- advantages of the previously-described process to even a greater extent.
We have found that artificial thread, particularly that produced from cellulose derivatives, such as acetyl cellulose, can be delustered and 45 the above-mentioned disadvantages overcome or avoided by introducing into the spinning solution a substance, such as an acid or an anhydride, which is soluble in the solvent used, dry spinning said solution, and subjecting the dry finished 50 thread to a bath containing a substance which reacts with the first-mentioned substance to form an insoluble or difiicultly soluble compound.
It is therefore an object of this invention to provide a method of producing a delustered. arti- 55 ficial thread, particularly one formed of a cellulose derivative, and specifically of cellulose acetate.
Another object of this invention is to provide a method of delustering artificial silk formed of a cellulose derivative, such as cellulose acetate, 5"
which consists in dry spinning a solution containing a substance, such as an acid or anhydride, and subjecting the dry finished thread to a bath containing a substance which reacts With the first-mentioned substance to form a substantially l0 insoluble compound.
A further object of this invention is to provide a method which comprises spinning a. solution containing a cellulose derivative, such as cellulose acetate, and an acid, such as stearic, and sub- 15 jecting the finished thread to a solution containing a salt, such as barium chloride, whereby an insoluble stearate, such as barium stearate, is produced in the thread.
According to this invention small quantities of 20 inorganic or organic (aliphatic or cyclic) acids or acid anhydrides which are soluble in the solvent are dissolved in the spinning solution, for instance, a solution of a cellulose derivative, such as cellulose acetate in an acetone alcohol mix- 25 ture. This solution is dry spun in the usual manner, and the dry finished lustrous thread is subsequently treated with an aqueous solution of such substances, as salts or other compounds, which react with the acid or anhydride to form 30 a substantially insoluble compound. Obviously, the acids or anhydrides contemplated are not volatile.
It is obvious that many acids, both organic and inorganic or anhydrides may be employed in 35 this process. As examples of specific materials of the above referred to classes, boric acid, higher fatty acids, and benzoic anhydride may be mentioned.
The quantity of acid or anhydride used should preferably be such that without subsequent treatment the thread produced at the end of the dry spinning operation is not delustered. The quantitles of the substance added should, furthermore, be such that the tenacity and other desirable physical properties of the thread are not influenced thereby. In filtering and spinning, the clear solution does not behave differently from normal or usual spinning solutions. The acid or anhydride may be incorporated in the spinning solution in a number of ways. For instance, it may be dissolved in the solvent prior to dissolving the cellulose derivative therein. Or, it may be mixed with the cellulose acetate and the mixture dissolved to form the solution. If desired, the cellulose acetate solution may be produced in the usual manner and the acid or anhydride subsequently dissolved therein.
For the subsequent treatment, aqueous solutions of salts or compounds of the heavy or alkaline earth metals, including aluminum, magnesium, and zinc, may be used. In carrying out the subsequent treatment, the thread is immersed for any suitable length of time in the form of skeins or fabrics in the treating bath at any suitable temperature, preferably between room temperature and about 50 C. Higher temperatures, though they may be used, are not essential for the successful practice of the invention.
By suitable choice of the acid and anhydride and proportions thereof, as well as the nature and concentration of the subsequent treating bath, the degree of delustering may be controlled.
It is to be noted that at the end of the spinning operation, the thread is of normal luster and is capable of being used in that condition. When a thread of reduced luster is desired, then the normal lustrous thread is treated as previously described. Obviously, the delustering may be accomplished while the thread is in skein form or after it has been manufactured into a fabric.
To more clearly explain the invention, the following specific' example illustrating one modification is set forth. It is, of course, to be understood that the invention is not restricted to this specific modification.
Example-20 kgs. acetyl cellulose are stirred in kgs. acetone in which grams of stearic acid are dissolved until the solution is clear. This solution is dry spun in the usual manner, and the acetate thread produced has a normal luster.
The thread in the form of skeins is immersed for several hours in a 1% barium chloride bath and then washed and dried. The thread resulting from this treatment has a subdued luster.
Since it is obvious that various changes may be made in the specific details herein set forth, the invention is not restricted thereto, except as set forth in the appended claims.
We claim:
l. A- process which comprises dry spinning a solution of a cellulose derivative containing a substance of the class which consists of normally non-volatile organic acids and organic acid anhydrides dissolved therein to form a thread of normal luster, said thread being capable of use as a lustrous thread, and subsequently subjecting the lustrous thread to a solution of a substance which reacts with the first-named substance to form a substantially insoluble compound, whereby the luster of the thread is reduced.
2. A process which comprises dry spinning a solution of a cellulose derivative containing an organic acid anhydride dissolved therein to form a thread of normal luster, said thread being capable of use as a lustrous thread, and subsequently subjecting the lustrous thread to a solution of a substance which reacts with said anhydride to form a substantially insoluble compound, whereby the luster of the thread is reduced.
3. A process which comprises dry spinning a solution of a cellulose derivative containing a normally nonvolatile organic acid dissolved therein to form a thread of normal luster, said thread being capable of use as a lustrous thread, and subsequently subjecting the lustrous thread to a solution of a substance which reacts with said acid to form a substantially insoluble compound, whereby the luster of the thread is reduced.
e. A process which comprises dry spinning a cellulose derivative solution having stearic acid dissolved therein to form a thread of normal luster which is capable of being used as a 1ustrous thread, and subsequently at any desired time subjecting the finished lustrous thread to a.
solution of' a substance which reacts with said stearic acid to form a substantially insoluble compound, whereby the luster of the thread is reduced.
5. A process which comprises dry spinning a cellulose derivative solution having stearic acid dissolved therein to form a thread of normal luster which is capable of being used as a lustrous thread, and subsequently at any desired time subjecting the finished lustrous thread to an aqueous solution of barium chloride, whereby the luster of the thread is reduced.
6. A process which comprises dry spinning a solution of a cellulose derivative containing henzoic anhydride dissolved therein to form a thread HANS ALTWEGG. ARMIN EICHLER.
Publications (1)
Publication Number | Publication Date |
---|---|
US2022838A true US2022838A (en) | 1935-12-03 |
Family
ID=3427532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US2022838D Expired - Lifetime US2022838A (en) | Artificial thread and process of |
Country Status (1)
Country | Link |
---|---|
US (1) | US2022838A (en) |
-
0
- US US2022838D patent/US2022838A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1983349A (en) | Textile material and method of making the same | |
US4371485A (en) | Process for making hydrophilic polyester fiber | |
US2420949A (en) | Carboxyalkyl cellulose ether fibers and films of good wet strength | |
US2495767A (en) | Preparation of fibers from carboxymethylcellulose | |
US2022838A (en) | Artificial thread and process of | |
USRE21455E (en) | Fibroin spinning solutions | |
US2052558A (en) | Production and treatment of artificial materials | |
DE3034635C2 (en) | Filaments and fibers made from acrylic polymer containing carboxyl groups, their use and process for their manufacture | |
US2632686A (en) | Production of artificial threads, films, and the like | |
US2145855A (en) | Fibroin spinning solutions | |
US2250375A (en) | Manufacture and production of artificial threads, filaments, films, and the like | |
US2457853A (en) | Treatment of textiles and composition therefor | |
US2035483A (en) | Treatment of textile materials | |
US2816004A (en) | Cellulosic solutions containing fire retardant and method of extruding | |
US2805176A (en) | Fireproofing regenerated cellulose | |
US2953464A (en) | Fire-retardant cellulosic compositions and process for producing fire-retard-ant cellulsoic structures therefrom | |
US1626454A (en) | Manufacture of artificial silk and the like from viscose solutions | |
US3575898A (en) | Polyvinyl chloride-antimony oxide flame-retardant mixtures for cellulosic spinning dopes | |
US2057712A (en) | Production of filaments and the like | |
US2992880A (en) | Manufacture of threads, fibres, filaments and the like from viscose | |
US1633220A (en) | Process of dyeing filaments and films formed from viscore | |
GB1096509A (en) | Polynosic fibers and a process for producing the same | |
US2022411A (en) | Manufacture of artificial filaments, threads, films, fabrics, and the like | |
US2088558A (en) | Manufacture of soft luster filaments | |
US1580843A (en) | Manufacture of artificial silk from viscose |