US1825960A - Method of treating artificial silk cakes made by the spinning can process - Google Patents
Method of treating artificial silk cakes made by the spinning can process Download PDFInfo
- Publication number
- US1825960A US1825960A US314547A US31454728A US1825960A US 1825960 A US1825960 A US 1825960A US 314547 A US314547 A US 314547A US 31454728 A US31454728 A US 31454728A US 1825960 A US1825960 A US 1825960A
- Authority
- US
- United States
- Prior art keywords
- thread
- spinning
- artificial silk
- cakes
- cakes made
- 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
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0418—Supporting filaments or the like during their treatment as cakes or similar coreless thread packages
Definitions
- the thread has been found specially advantageous for the thread to be first dried in the form of a thread cake in an entirely free, unstressed condition, so that it does not have to undergo any tension or any stress either owing to any internal sup-porting of the cake or owing to the unwinding and reeling or spooling before drying. Contrary to what might have been expected, the thread dried in an unsupported and unstressed condition remains completely smooth and unwaved, close in itself and therefore soft to the touch, whereas a thread dried in a stressed condition or after being stressed, even if only temporarily, exhibits the known waviness with which is ordinarily associated the occurrence of loose places in the thread, that is, the occurrence of places at which the individual fibres forming the entire thread do not lie close together.
- the expression state of tension is here meant that the dried threaddoes not comprise portions which have undergone tensions differing from one another and which therefore exhibit different degrees of extensibility at rupture. If for example the thread unwound from the damp cake is dried on a reel, individual turns are unavoidably more heavily stressed on the reel, and in particular the inner turns bearing directly upon the point of support, are stressed more than the outer turns. Since according to the invention the thread is dried without any stress at all, it cannot contain portions of different stress conditions.
- the drying of the cakes is preferably effected on hurdles.
- WVhat I claim is 1.
- a process for the additional treatment of cakes of artificial silk manufactured by the known spinning can process of pressing the cakes flat and rinsing them, said treatment consisting in thereupon drying the cakes without tension while still in the form of cakes and without any inner support of the annular filament layers, before unwinding and reeling the silk thread.
- a process for the additional treatment of cakes of artificial silk that have been manufactured by the spinning can process and pressed fiat and rinsed by the method disclosed in U. S. Patent No. 1,708,583, said I treatment comprising the steps of drying the silk without tension while it is still in the form of cakes and without the assistance of any inner support of the annular filament layers.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Patented Oct. 6, 193i 'rED STATES PATENT OFFICE HUGO KIITTNER, OF DRESDEN, GERMANY, ASSIGNOR TO KUTTNER AKTIENGESELL- SCHAFT, OF PIRNA-ON-TI-IE-ELBE, GERMANY METHOD OF TREATING ARTIFICIAL SILK CAKES MADE BY THE SPINNING CAN PROCESS No Drawing. Application filed October 23, 1928, Serial No. 314,547, and in Germany November 5, 1927.
In carrying out the process disclosed in my prior specification Serial Number 260,396 Patent N 0. 1,708,583 it has been found that it is preferable and is connected with special technical advantages if the further treatment of the flattened and subsequently rinsed cakes prepared as set forth in my said prior specification is also extended to the drying of the cakes, so that the cake form is only abandoned by unwinding, and reeling or spooling the thread, after the completion of the drying. Hence only after the drying is finished does the cake receive internal support from the reel which carries it during the unwinding of the thread. This treatment has not given rise to any objections on the ground of the layers of thread becoming disarranged, but it is possible for the sake of precaution to bind the cake round with a thread before collapsing the reel, as is done in the case of yarn hanks.
It has been found specially advantageous for the thread to be first dried in the form of a thread cake in an entirely free, unstressed condition, so that it does not have to undergo any tension or any stress either owing to any internal sup-porting of the cake or owing to the unwinding and reeling or spooling before drying. Contrary to what might have been expected, the thread dried in an unsupported and unstressed condition remains completely smooth and unwaved, close in itself and therefore soft to the touch, whereas a thread dried in a stressed condition or after being stressed, even if only temporarily, exhibits the known waviness with which is ordinarily associated the occurrence of loose places in the thread, that is, the occurrence of places at which the individual fibres forming the entire thread do not lie close together.
Even when the thread thus dried subsequently has to be moistened once more for any reason, and therefore already has behind it the tension associated with the reeling or spooling after the first drying, that no longer perceptibly impairs the thread. Apart from this remoistening of the thread for the purpose of any subsequent treatment, which indeed only seldom comes into consideration, the finishing of the thread, including the drying, in the form of a cake, also presents advantages as regards the simplification of the production.
Finally the uniformity of the state of tension of the thread dried in the form of a cake is to be emphasized. By the expression state of tension, is here meant that the dried threaddoes not comprise portions which have undergone tensions differing from one another and which therefore exhibit different degrees of extensibility at rupture. If for example the thread unwound from the damp cake is dried on a reel, individual turns are unavoidably more heavily stressed on the reel, and in particular the inner turns bearing directly upon the point of support, are stressed more than the outer turns. Since according to the invention the thread is dried without any stress at all, it cannot contain portions of different stress conditions.
The drying of the cakes is preferably effected on hurdles. I
WVhat I claim is 1. A process for the additional treatment of cakes of artificial silk manufactured by the known spinning can process of pressing the cakes flat and rinsing them, said treatment consisting in thereupon drying the cakes without tension while still in the form of cakes and without any inner support of the annular filament layers, before unwinding and reeling the silk thread.
2. A process for the additional treatment of cakes of artificial silk that have been manufactured by the spinning can process and pressed fiat and rinsed by the method disclosed in U. S. Patent No. 1,708,583, said I treatment comprising the steps of drying the silk without tension while it is still in the form of cakes and without the assistance of any inner support of the annular filament layers.
In testimony whereof I have signed my name to this specification.
HUGO KUTTNER.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE300131T | 1927-03-14 | ||
DEK103360D DE474789C (en) | 1927-03-14 | 1927-03-14 | Process for the treatment of artificial silk cakes produced by the spin-pot-spinning process |
GB788128A GB287097A (en) | 1928-03-14 | 1928-03-14 | Improved method of treating cakes of artificial silk manufactured by the centrifuge spinning process |
Publications (1)
Publication Number | Publication Date |
---|---|
US1825960A true US1825960A (en) | 1931-10-06 |
Family
ID=31950065
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US260396A Expired - Lifetime US1708583A (en) | 1927-03-14 | 1928-03-09 | Method of treating cakes of artificial silk manufactured by the can spinning process |
US314547A Expired - Lifetime US1825960A (en) | 1927-03-14 | 1928-10-23 | Method of treating artificial silk cakes made by the spinning can process |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US260396A Expired - Lifetime US1708583A (en) | 1927-03-14 | 1928-03-09 | Method of treating cakes of artificial silk manufactured by the can spinning process |
Country Status (6)
Country | Link |
---|---|
US (2) | US1708583A (en) |
BE (2) | BE349649A (en) |
DE (1) | DE474789C (en) |
FR (2) | FR650848A (en) |
GB (1) | GB300131A (en) |
NL (2) | NL21569C (en) |
-
0
- NL NL23209D patent/NL23209C/xx active
- BE BE354891D patent/BE354891A/xx unknown
- NL NL21569D patent/NL21569C/xx active
- BE BE349649D patent/BE349649A/xx unknown
-
1927
- 1927-03-14 DE DEK103360D patent/DE474789C/en not_active Expired
-
1928
- 1928-03-09 US US260396A patent/US1708583A/en not_active Expired - Lifetime
- 1928-03-14 FR FR650848D patent/FR650848A/en not_active Expired
- 1928-10-12 FR FR35994D patent/FR35994E/en not_active Expired
- 1928-10-23 US US314547A patent/US1825960A/en not_active Expired - Lifetime
- 1928-11-05 GB GB32235/28A patent/GB300131A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR650848A (en) | 1929-02-15 |
GB300131A (en) | 1929-07-18 |
BE354891A (en) | |
FR35994E (en) | 1930-04-05 |
DE474789C (en) | 1929-04-12 |
NL21569C (en) | |
US1708583A (en) | 1929-04-09 |
NL23209C (en) | |
BE349649A (en) |
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