GB924888A - Methods and apparatus for thermally shrinking thermoplastic yarns - Google Patents
Methods and apparatus for thermally shrinking thermoplastic yarnsInfo
- Publication number
- GB924888A GB924888A GB19161/59A GB1916159A GB924888A GB 924888 A GB924888 A GB 924888A GB 19161/59 A GB19161/59 A GB 19161/59A GB 1916159 A GB1916159 A GB 1916159A GB 924888 A GB924888 A GB 924888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- yarns
- heater
- positively
- pict
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- 229920001169 thermoplastic Polymers 0.000 title abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000004677 Nylon Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 238000002788 crimping Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/10—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using knife edges, e.g. heated knife edges, for edge crimping
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
- D02G1/205—After-treatments for fixing crimp or curl
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
In a process for thermally shrinking thermoplastic, e.g. nylon or polyethylene, yarn, a running length thereof is positively overfed into and positively withdrawn from engagement with a heated surface by unheated feeding and withdrawing devices. The heater surface is positively driven so as to move in the same direction as the yarn at the points of contact with it and at a speed which is less than 5% different from the withdrawing speed and may be 5-40% less than the speed at which yarn is positively advanced to the surface. The temperature of the surface is at least 180 DEG F. but is not above the sticking temperature of the yarn. "Elasticising", e.g. edge-crimping, and processes for modifying bulk and/or stretch properties of the yarn product thereof by thermal shrinkage may be effected successively with apparatus providing two heating surfaces on a single structure for the respective heat treatments. As shown in Fig. 1, yarns 20 and 22 supplied from pirns 18, 19, are passed from guides 24, 26, through tension regulators 28 and 30 to assembly 32 (wherein the yarn is crimped and modified) thence about an oiling roller 34, and the lubricated, modified bulk/stretch yarns pass through a guide 40 and are plied and taken up by ring-twisting apparatus 42. Within the assembly 32, Figs. 3 and 6, yarns 20, 22, pass about multiple guides 62, 66, and wrap one or more spaced turns about larger diameter portions 84 and 90 of canted advancing rolls 74 and 82, thence through a guide comb 102 to a heater 108. The heater, Fig. 7, comprises a stepped roll 110 and an electrically heated member 128 which supports and distributes heat to rotary, coaxial, yarn contact members 130 and 132 grooved at 134 and 136 to receive the yarns. After passing in partial wrap about member 130, the yarns are withdrawn in a sharply angular manner about the edge of a blade 160 (the angularity and position in relation to the heater of which are adjustable and spring-located) under the guidance and tensioning control of an unheated, freely-rotatable roll 164, then pass <PICT:0924888/IV(a)/1> <PICT:0924888/IV(a)/2> <PICT:0924888/IV(a)/3> <PICT:0924888/IV(a)/4> over a separating guide 178, around the smaller diameter portions 88 and 92 of rolls 74 and 82 and thereafter through a guide comb 184 and in a partial wrap about member 132. The yarns are positively withdrawn from engagement with the heated surface of member 132 by a second yarn advancing device 188, comprising canted rolls 190 and 208 driven by a common belt 210, to which they are directed by a guide pin 186. A common drive shaft 212 driven in synchronism with the drive for take-up apparatus 42 may extend the length of a machine frame and serve a number of stations. The rate of operation of both yarn advancing devices 76 and 188 may be incrementally varied with respect to the rate of rotation of heater roll 110 through replaceable, adjustably mounted gear wheels and manually controlled clutches, the mechanism also being mechanically interlocked with apparatus 42 and subject to overriding control, through a solenoid-actuated link, by an electrical stop-motion (not shown) so that, upon yarn breakage, both edgecrimping and final yarn take-up automatically cease, Figs. 4 and 5 (not shown). The run of the yarn may be altered to restrict the function of the apparatus to a combined hot-stretching and thermal contraction, or shrinking or modification of a previously crimped yarn. Specification 823,047 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US740637A US2977746A (en) | 1958-06-09 | 1958-06-09 | Apparatus for processing thermoplastic yarns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB924888A true GB924888A (en) | 1963-05-01 |
Family
ID=24977413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19161/59A Expired GB924888A (en) | 1958-06-09 | 1959-06-04 | Methods and apparatus for thermally shrinking thermoplastic yarns |
Country Status (5)
Country | Link |
---|---|
US (1) | US2977746A (en) |
AT (1) | AT238875B (en) |
BE (1) | BE579227A (en) |
ES (1) | ES249135A1 (en) |
GB (1) | GB924888A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE590957A (en) * | 1959-05-18 | |||
US3108355A (en) * | 1960-04-21 | 1963-10-29 | Us Rubber Co | Process and apparatus for treating strands |
GB970157A (en) * | 1960-04-26 | 1964-09-16 | English Rose Ltd | Improvements in and relating to the production of bulked yarns |
US3137912A (en) * | 1961-01-09 | 1964-06-23 | Deering Milliken Res Corp | Apparatus for producing intermittent edge-crimped yarn |
DE7016570U (en) * | 1970-05-02 | 1971-02-25 | Glanzstoff Ag | ADJUSTABLE GALLET EXTRACTOR. |
US3805346A (en) * | 1971-08-23 | 1974-04-23 | Concorde Fibers | Method for treating yarn |
US3868749A (en) * | 1974-02-06 | 1975-03-04 | American Cyanamid Co | Method of texturizing thermoplastic yarn |
FR759330A (en) * | 1980-03-03 | 1934-02-01 | Chair | |
US20060177384A1 (en) * | 2001-12-04 | 2006-08-10 | Brown Dale G | Sialagogue coatings for interproximal devices |
CN112941678A (en) * | 2021-01-19 | 2021-06-11 | 郭震 | Elastic high molecular weight fiber filament and preparation method thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US798276A (en) * | 1904-07-25 | 1905-08-29 | George A Fredenburgh | Thread-dressing machine. |
US2244415A (en) * | 1938-11-14 | 1941-06-03 | Callaway Mills | Yarn twisting and stabilizing machine |
US2325060A (en) * | 1942-02-25 | 1943-07-27 | Du Pont | Nonshrinking yarn |
BE465536A (en) * | 1942-11-03 | |||
FR962278A (en) * | 1946-05-25 | 1950-06-07 | ||
BE485558A (en) * | 1947-11-12 | 1900-01-01 | ||
US2639485A (en) * | 1949-06-29 | 1953-05-26 | Goodrich Co B F | Industrial cord treating apparatus |
US2736944A (en) * | 1953-09-02 | 1956-03-06 | John Bright & Brothers Ltd | Means for stretching cords, yarns and the like |
BE534630A (en) * | 1954-01-04 | |||
US2864229A (en) * | 1957-06-05 | 1958-12-16 | Universal Winding Co | Apparatus for thermally processing yarns |
-
1958
- 1958-06-09 US US740637A patent/US2977746A/en not_active Expired - Lifetime
-
1959
- 1959-05-02 ES ES0249135A patent/ES249135A1/en not_active Expired
- 1959-06-01 BE BE579227A patent/BE579227A/en unknown
- 1959-06-04 GB GB19161/59A patent/GB924888A/en not_active Expired
- 1959-06-08 AT AT424659A patent/AT238875B/en active
Also Published As
Publication number | Publication date |
---|---|
BE579227A (en) | 1959-10-01 |
ES249135A1 (en) | 1959-12-01 |
US2977746A (en) | 1961-04-04 |
AT238875B (en) | 1965-03-10 |
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