GB1102362A - Process for drafting staple fibres and improved web produced according to such process - Google Patents
Process for drafting staple fibres and improved web produced according to such processInfo
- Publication number
- GB1102362A GB1102362A GB5829/65A GB582965A GB1102362A GB 1102362 A GB1102362 A GB 1102362A GB 5829/65 A GB5829/65 A GB 5829/65A GB 582965 A GB582965 A GB 582965A GB 1102362 A GB1102362 A GB 1102362A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- drafting
- fibre
- stability
- delivery
- 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 6
- 239000000835 fiber Substances 0.000 abstract 9
- 239000000463 material Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
Classifications
-
- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
1,102,362. Drafting fibres. PAVENA A.G. 10, Feb., 1965 [15. Feb., 1964], No. 5829/65. Headings D1D and D1F. A method of drafting staple fibres between a pair of feed rollers and a pair of delivery rollers, comprises the steps of passing a non- twisted "stable band" (i.e. one in which the fibres are adhesively bonded together by a setting-agent) through the feed rollers, gripping in turn one or more individual fibres by means of a pair of delivery rollers so that each fibre or group so gripped is subjected to a high tensional load increasing up to the failure of the bond between the fibre or group and the adjacent fibres, and withdrawing the fibre or group substantially without force by means of the delivery rollers. The method aims to avoid the use of fibre control means, such as aprons, in the drafting zone (although a guide may be employed in the drafting zone which merely smooths away projecting fibres and does not compress the material), and to promote "cross-sectional stability" and "transverse stability" of the material undergoing drafting, thereby preventing "drafting waves" i.e. irregularities, appearing in the drafted material. "Cross-sectional stability" is defined as meaning that the band retains its cross-sectional configuration before and after entering the feed nip; "transverse stability" is defined as meaning that when a fibre enters the delivery-nip and is subjected to a high tensile load, as described below, the load is distributed throughout the remaining fibres so that it is not substantially elongated, although an elongation arising merely from the aligning of the molecular chains of the fibre may result. The method may be applied to preparatory and final drafting; in the former, two or more slivers may be doubled. Further the method may be used in two-stage drafting. The distance between the nips of the delivery and feed rollers may exceed the stable length of the fibres. In Fig. 2, a band consisting of fibres bonded together as described in Specification 1102363, is shown approaching the nip plane EK of delivery rollers. The fibres, being arranged naturally at random, project beyond one another, and are gripped in the nip one at a time. Fibre c, being bonded to adjacent fibres is subjected to a pull K c which increases until the bond fails, at which point the pull falls almost to zero and the fibre is carried away by the delivery rollers with practically no force. The pull is of short duration and the elongation of the fibre, i.e. its "lengthwise stability", minimal, thereby reducing the possibility of irregular drafting. The other fibres are held back by the fibres to which they are bonded. The lengthwise stability of the band may be tested by an instrument or by the readiness with which it breaks under its own weight.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH188164A CH526649A (en) | 1964-02-15 | 1964-02-15 | Process for drawing a staple fiber band and fleece produced according to this process |
BE659699A BE659699A (en) | 1964-02-15 | 1965-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1102362A true GB1102362A (en) | 1968-02-07 |
Family
ID=25656139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5829/65A Expired GB1102362A (en) | 1964-02-15 | 1965-02-10 | Process for drafting staple fibres and improved web produced according to such process |
Country Status (6)
Country | Link |
---|---|
US (1) | US3548460A (en) |
BE (1) | BE659699A (en) |
CH (1) | CH526649A (en) |
DE (1) | DE1510378B2 (en) |
GB (1) | GB1102362A (en) |
NL (1) | NL6500999A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116203108B (en) * | 2023-05-04 | 2023-08-08 | 苏州市纤维检验院 | Textile static attenuation test equipment and test method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1905268A (en) * | 1930-11-05 | 1933-04-25 | Textile Patent & Process Co In | Method of drafting textile fibers |
FR1007089A (en) * | 1948-02-24 | 1952-04-30 | Blin & Blin Ets | Method for stretching textiles and device for carrying out the method |
US2771639A (en) * | 1950-07-03 | 1956-11-27 | Aymerich Jose Maria Bosch | System for drafting fibrous materials |
GB757583A (en) * | 1953-11-28 | 1956-09-19 | Spinnfaser Ag | Improved method for improving the uniformity of drafting frame slivers of synthetic fibres |
US3020697A (en) * | 1958-11-07 | 1962-02-13 | Callaway Mills Co | Method and apparatus for producing multi-colored single yarn in simulation of ply yarn |
NL295932A (en) * | 1962-08-16 | |||
US3381343A (en) * | 1966-01-06 | 1968-05-07 | Agriculture Usa | Apparatus for drafting textile fibers |
US3392425A (en) * | 1967-05-08 | 1968-07-16 | Johnson & Johnson | Apparatus for drafting sliver |
-
1964
- 1964-02-15 CH CH188164A patent/CH526649A/en not_active IP Right Cessation
-
1965
- 1965-01-15 DE DE1965P0035878 patent/DE1510378B2/en active Granted
- 1965-01-27 NL NL6500999A patent/NL6500999A/xx unknown
- 1965-02-10 GB GB5829/65A patent/GB1102362A/en not_active Expired
- 1965-02-12 BE BE659699A patent/BE659699A/xx unknown
-
1968
- 1968-06-03 US US734150A patent/US3548460A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE1510378B2 (en) | 1976-08-12 |
CH526649A (en) | 1972-08-15 |
US3548460A (en) | 1970-12-22 |
BE659699A (en) | 1965-08-12 |
DE1510378A1 (en) | 1970-08-06 |
NL6500999A (en) | 1965-08-16 |
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