IE34113L - Manufacture of multicomponent fibres. - Google Patents
Manufacture of multicomponent fibres.Info
- Publication number
- IE34113L IE34113L IE700517A IE51770A IE34113L IE 34113 L IE34113 L IE 34113L IE 700517 A IE700517 A IE 700517A IE 51770 A IE51770 A IE 51770A IE 34113 L IE34113 L IE 34113L
- Authority
- IE
- Ireland
- Prior art keywords
- film
- branches
- assembly
- film web
- ridges
- Prior art date
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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/20—Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
-
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
Abstract
1311085 Profiled films; crimped yarns and fibres SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 23 April 1970 [25 April 1969] 21196/69 Heading B5B [Also in Division D1] A film assembly comprises a film web which is fibrillatable after having been stretched in the longitudinal direction, which consists of a synthetic organic thermoplastic polymeric material, and which is provided on one or both surfaces thereof with closely spaced parallel ridges extending along the length of the film web consisting of thermoplastic meterial which "differs" i.e. in stress-strain characteristics from the material of which the film web consists having cross-sections which are substantially constant along their length and being firmly and permanently bonded to the film. The assembly may be manufactured by continuously melt extruding the thermoplastic film forming material through an extrusion die provided with a linear or an annular extrusion slot to form a film web and simultaneously continuously melt extruding the ridge - forming thermoplastic material separately through a row of closely spaced extrusion holes adjoining the slot or being in closely spaced relationship therewith to form parallel ridges strongly and permanently bonded to the film web and extending along the length thereof. The film portion of the assembly may consist of homo- and copolymers of vinyl chloride vinylidene chloride, vinyl acetate, acrylonitrile, as well as polyesters and polyamides. Preferred film-forming materials are homo- and copolymers of ethylene and particularly those of propylene. The term "differs" is further defined as meaning that the stress-strain relationship of the material of the film differs from that of the ridges at any temperature, both in the condition as present in the assembly in stretched or unstretched condition. The polymeric starting material for the ridges may or may not be different from the film-forming material. When using different polymers they must be selected so that the melt extruded ridges strongly adhere to the melt extruded film and that this strong adhesion is maintained on solidification followed by stretching. Very good adhesion is obtained when using polymers consisting of identical monomer units but differing from one another in average molecular weight, distribution of molecular weight, stereoconfiguration, crystallinity, and/or orientation. It is stated that such differences can be produced by dividing a stream of a molten thermoplastic polymer into branches and heating this to different temperatures and/or during unequal periods of time and/or at different shear rates so that the average molecular weights in the branches decrease to a different degree, and finally by extruding the material in one of the branches through the slot shaped extrusion orifice and the other through the row of holes adjoining or close to the slot. The dissimilarity in average molecular weight can also be achieved at an identical temperature and with an identical period of heating of the branches if these branches contain different concentrations of molecular weight stabilizing agents or if such an agent is present in only one of the branches. Differences in the crystallinity of the film and ridge portions of the film web assembly can also be effected by the use of substances which influence crystallization, e.g. nucleating agents. The film web assembly may optionally be slit longitudinally into strips if of suitable width, stretched and fibrillated as by using a pinned rotating cylinder. The fibrillate may be heated to develop its crimp. Figures, accompanying the provisional Specification, show various arrangements of slots and holes suitable for use in the extrusion dies, and cross-sections of profiled films obtained therefrom.
[GB1311085A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2119669 | 1969-04-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE34113L true IE34113L (en) | 1970-10-25 |
IE34113B1 IE34113B1 (en) | 1975-02-05 |
Family
ID=10158806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE517/70A IE34113B1 (en) | 1969-04-25 | 1970-04-23 | Profiled film assemblies and crimped multicomponent yarns and fibres made therefrom |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE749170A (en) |
CH (1) | CH514421A (en) |
DE (1) | DE2019815A1 (en) |
FR (1) | FR2046406A5 (en) |
GB (1) | GB1311085A (en) |
IE (1) | IE34113B1 (en) |
NL (1) | NL7005879A (en) |
ZA (1) | ZA702724B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5173141A (en) * | 1988-05-25 | 1992-12-22 | Minnesota Mining And Manufacturing Company | Preparing tape having improved tear strength |
US5079066A (en) * | 1988-05-25 | 1992-01-07 | Minnesota Mining And Manufacturing Company | Tape having improved tear strength |
US5145544A (en) * | 1989-08-01 | 1992-09-08 | Minnesota Mining And Manufacturing Company | Method for preparing tape having improved tear strength |
US7438777B2 (en) | 2005-04-01 | 2008-10-21 | North Carolina State University | Lightweight high-tensile, high-tear strength bicomponent nonwoven fabrics |
EP2597183B1 (en) | 2005-06-24 | 2016-04-06 | North Carolina State University | High strength, durable micro & nano-fiber fabrics produced by fibrillating bicomponent islands in the sea fibers |
US7883772B2 (en) | 2005-06-24 | 2011-02-08 | North Carolina State University | High strength, durable fabrics produced by fibrillating multilobal fibers |
US8981178B2 (en) | 2009-12-30 | 2015-03-17 | Kimberly-Clark Worldwide, Inc. | Apertured segmented films |
US8895126B2 (en) | 2010-12-31 | 2014-11-25 | Kimberly-Clark Worldwide, Inc. | Segmented films with high strength seams |
US10081123B2 (en) | 2010-12-31 | 2018-09-25 | Kimberly-Clark Worldwide, Inc. | Segmented films with high strength seams |
US9676164B2 (en) | 2011-07-18 | 2017-06-13 | Kimberly-Clark Worldwide, Inc. | Extensible sheet material with visual stretch indicator |
CN111733470B (en) * | 2020-06-12 | 2022-11-08 | 温州大学 | Self-crimping composite moisture absorption fiber, preparation method and fabric |
-
1969
- 1969-04-25 GB GB2119669A patent/GB1311085A/en not_active Expired
-
1970
- 1970-04-20 BE BE749170D patent/BE749170A/en unknown
- 1970-04-23 FR FR7014785A patent/FR2046406A5/fr not_active Expired
- 1970-04-23 CH CH612670A patent/CH514421A/en not_active IP Right Cessation
- 1970-04-23 NL NL7005879A patent/NL7005879A/xx unknown
- 1970-04-23 IE IE517/70A patent/IE34113B1/en unknown
- 1970-04-23 ZA ZA702724A patent/ZA702724B/en unknown
- 1970-04-23 DE DE19702019815 patent/DE2019815A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ZA702724B (en) | 1971-03-31 |
GB1311085A (en) | 1973-03-21 |
CH514421A (en) | 1971-10-31 |
FR2046406A5 (en) | 1971-03-05 |
IE34113B1 (en) | 1975-02-05 |
BE749170A (en) | 1970-10-20 |
NL7005879A (en) | 1970-10-27 |
DE2019815A1 (en) | 1970-11-05 |
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