US1867298A - Artificial yarn, particularly artificial silk yarn - Google Patents
Artificial yarn, particularly artificial silk yarn Download PDFInfo
- Publication number
- US1867298A US1867298A US326892A US32689228A US1867298A US 1867298 A US1867298 A US 1867298A US 326892 A US326892 A US 326892A US 32689228 A US32689228 A US 32689228A US 1867298 A US1867298 A US 1867298A
- Authority
- US
- United States
- Prior art keywords
- yarn
- artificial
- silk
- denier
- yarns
- 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
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
-
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/298—Physical dimension
Definitions
- This invention relates to an improvement in artificial yarns, particularly artificial silk yarns.
- Artificial yarns are composed of a large number of continuous individual filaments which are comparable to the fibres of ordinary yarns.
- filaments may take place either before or after stretching.
- the denier is a measure of *the'fineness of the thread which is usual in the silk industry.
- the number of deniers is equalto the weight in grams of a thread of 9,000 meters in length.
- the titer of the yarn was likewise asccr tained with 11 per cent thread humidity.
- the yarn produced in accordance with the invention has about double the resistance of the artificial silk which has been known I hitherto. Moreover, it has the same lustre as natural silk and attains to or exceeds this in relation to the feel and resistance, as the individual filaments are finer than those of natural silk. Owing to these properties, the
- Yarn 1 artificial origin comprising fila ments with an individual titre of less than 1 denier, said yarn having a dry strength; of at least 2.2 grams per denier and a wet strength ofat least 1.4 grams per denier.
Description
July 12, 1932. A -z'AR"r TAL 1,867,298
ARTIFICIAL YARN, PARTICULARLY ART'IFIGIAL SILK YARN Filed De.- 3.5. 1928 ii-form a product of previously unknown qual Patented July 12, 1932 UNITED STATES PATENTV'OFFICE FRANZ nonnxnsmr, or BARMEN-RITTEBSHAUSEN, -memcm Bananas coaronn'rron, on NEW, YORK, is. Y.
GERMANY, ASSIGNQRS .TO
murmur. YARN, PARTICULARLY ARTIFICIAL SILK um Application filed December 18,1928, Serial No. 326,892, and in Germany May 5,1928.
This invention relates to an improvement in artificial yarns, particularly artificial silk yarns.
Artificial yarns, particularly artificial silk yarns, are composed of a large number of continuous individual filaments which are comparable to the fibres of ordinary yarns.
of natural silk yarn and retain the unity of the individual filaments. There is, however, in this connection a limit, and in fact it is determined by the resistance of the individual filaments, (the lower limit lies at about 1 denier per individual filament). If the individual filaments are too thin, they tear, and the yarn has, as the expression has it,
broken filaments. This breaking of the the spinning funnel.
filaments may take place either before or after stretching.
We have succeeded in producing an artificial yarn of increased resistance, and in fact, by subjecting the cellulose thread, after it has been brought to a certain stage, to a further stretching outside the precipitating bath. For example. with silk produced from cuprammonium cellulose solution, an increase in resistance of 100 per cent has been obtained by stretching the yarn while-still in the plastic condition outside the spinning funnel and after the stretching effected in The increase in resistance depends upon the degree of stretchmg.
It is possible according to the invention, with asilk having an increased resistance of this kind.'t0 reduce the individual filaments of the yarn below 1 denier for the individual filaments Without danger existing of breaks and the formation of broken filaments either before or after stretching, that is thus. to form cellulose silk yarn from individual filements of increased resistance and having a titer of less than 1 denier. With this, such a yarn presents the same soft lustre as nat ural silk. Yarns of this kind are new and deniers in the dry condition and 185 grams per 100 deniers in the'wet condition.
The accompanying drawing is an enlarged cross-section through a yarn according to our invention made from copper oxide ammonia cellulose solution by the stretch spinning process. Each individual filament has an essentially circular cross-section while the individual filaments of other artificial silk yarns have a flat, elongated, oval-shaped or kidney-shaped cross-section;
The denier is a measure of *the'fineness of the thread which is usual in the silk industry. The number of deniers is equalto the weight in grams of a thread of 9,000 meters in length. v
The formerly known yarns of artificial silk, the individual filaments of which possessed. a fineness below 1.5 deniers, had, at the most, a tear resistance of 170 to 185 grams in the dry condition, and to ams in the wet condition. Yarns with in ividual filaments, the titer of which lies under one denier, have not essentially been known. The yarns according to the invention, on the other hand, the individual filaments having titers of 1 denier and below, have a resistance of at least 220 grams per deniers in the dry condition, and grams per 100 deniers in the wet condition.
The resistance figures given were ascer tained with a thread humidity of 11 per cent for the dry condition, and in the completely wetted condition respectively at room temperature. For the tests, the so-called Schopper strength testing apparatus or serimeter was used for working on a free piece of yarn of 50 centimeters length. The speed of tearing amounted to 50 centimeters per lin'nute. 4
The titer of the yarn was likewise asccr tained with 11 per cent thread humidity.
v material is capable of be" The yarn produced in accordance with the invention has about double the resistance of the artificial silk which has been known I hitherto. Moreover, it has the same lustre as natural silk and attains to or exceeds this in relation to the feel and resistance, as the individual filaments are finer than those of natural silk. Owing to these properties, the
used to an increased extent for the production of textile products, andparticularly for 'such products which are to be washable.
What we claim is 1. Yarn 1 artificial origin comprising fila ments with an individual titre of less than 1 denier, said yarn having a dry strength; of at least 2.2 grams per denier and a wet strength ofat least 1.4 grams per denier.
2. Artificial silk composed of filaments with an individual titre less than 1 denier, said silk having a dry strength of approximately 2.64 grams per demer, and a Wet strength of approximately 1.85 grams per denier.
In testimony whereof we afiix our signatures. r
AUGUST HARTMANN.
FRAN HOELKESKAMP.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0128717 | 1928-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1867298A true US1867298A (en) | 1932-07-12 |
Family
ID=6997197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US326892A Expired - Lifetime US1867298A (en) | 1928-05-05 | 1928-12-18 | Artificial yarn, particularly artificial silk yarn |
Country Status (1)
Country | Link |
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US (1) | US1867298A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434532A (en) * | 1944-09-27 | 1948-01-13 | Paul D Wurzburger | Imitation fabric |
US2439813A (en) * | 1943-05-13 | 1948-04-20 | American Viscose Corp | Artificial filament |
US2439814A (en) * | 1943-05-13 | 1948-04-20 | American Viscose Corp | Crimped artificial filament |
US2476293A (en) * | 1944-10-03 | 1949-07-19 | American Viscose Corp | Artificial fiber |
US2517694A (en) * | 1943-09-14 | 1950-08-08 | American Viscose Corp | Crimped artificial filament |
US2848737A (en) * | 1952-07-18 | 1958-08-26 | Firestone Tire & Rubber Co | Extrusion die |
US2988420A (en) * | 1959-02-16 | 1961-06-13 | Du Pont | Process for spinning polyacrylonitrile filament having low degree of crimp and high cimp reversibility |
US3111805A (en) * | 1959-01-28 | 1963-11-26 | Du Pont | Randomly looped filamentary blend |
-
1928
- 1928-12-18 US US326892A patent/US1867298A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2439813A (en) * | 1943-05-13 | 1948-04-20 | American Viscose Corp | Artificial filament |
US2439814A (en) * | 1943-05-13 | 1948-04-20 | American Viscose Corp | Crimped artificial filament |
US2517694A (en) * | 1943-09-14 | 1950-08-08 | American Viscose Corp | Crimped artificial filament |
US2434532A (en) * | 1944-09-27 | 1948-01-13 | Paul D Wurzburger | Imitation fabric |
US2476293A (en) * | 1944-10-03 | 1949-07-19 | American Viscose Corp | Artificial fiber |
US2848737A (en) * | 1952-07-18 | 1958-08-26 | Firestone Tire & Rubber Co | Extrusion die |
US3111805A (en) * | 1959-01-28 | 1963-11-26 | Du Pont | Randomly looped filamentary blend |
US2988420A (en) * | 1959-02-16 | 1961-06-13 | Du Pont | Process for spinning polyacrylonitrile filament having low degree of crimp and high cimp reversibility |
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