ES356075A1 - Process and apparatus for the manufacture of films and yarns, and the products thus manufactured - Google Patents

Process and apparatus for the manufacture of films and yarns, and the products thus manufactured

Info

Publication number
ES356075A1
ES356075A1 ES356075A ES356075A ES356075A1 ES 356075 A1 ES356075 A1 ES 356075A1 ES 356075 A ES356075 A ES 356075A ES 356075 A ES356075 A ES 356075A ES 356075 A1 ES356075 A1 ES 356075A1
Authority
ES
Spain
Prior art keywords
film
component
components
nylon
adhere
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
Application number
ES356075A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo NV
Original Assignee
Algemene Kunstzijde Unie NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Algemene Kunstzijde Unie NV filed Critical Algemene Kunstzijde Unie NV
Publication of ES356075A1 publication Critical patent/ES356075A1/en
Expired legal-status Critical Current

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
    • 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
    • D01D5/32—Side-by-side structure; 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
    • B29C48/03—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
    • 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
    • B29C48/16—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Multicomponent Fibers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Laminated Bodies (AREA)

Abstract

Synthetic films are made by a process in which at least two liquid component polymers are placed side by side in a given order to form a single main stream which is repeatedly flattened and divided to form a multi-layer stream which is forced through an extrusion slit, which in the longitudinal direction thereof extends substantially perpendicular to the planes of the divisions between the layers to form a film in which the layers extend side by side across the film. Advantageously, the layered stream, which has a virtually square cross-section, is transformed at least once while the cross-sectional surface area is maintained constant, into a stream having a rectangular cross-section whose short-side dimension is not smaller than 1 mm. The process is more particularly characterized in that the main stream is made up of at least three components, at least two of which properly adhere to each other in the extruded film but differ widely in shrinkability after drawing in the longitudinal direction of the film and of which at least one other component which hardly adheres to its neighbouring components is present between the components which do not adhere to each other. As the said other component use may be made of a material which is soluble in solvents which do not attack the components that adhere to each other and the film, after it has been drawn or not, is passed through a bath containing these solvents. The said other component may have a melting point which is lower than the softening point of the components which adhere and the film, after it has been drawn or not, is heated. The material for the other component may have an elongation at its breaking point which is lower than that corresponding to the ratio at which the adhering components are drawn, and the film is then drawn. In another embodiment, the main stream is composed of at least 3 components of which in the formed film at least two poorly adhere to each other, and of which at least one other component which properly adheres to its neighbouring components is present between the two poorly adhering components. Threads, fibres or yarns can be made from the film by splitting each film sheet into a large number of threads by a mechanical, chemical or physical treatment. In the examples, the following films are described: (i) a two-component film of nylon 6, and nylon 6 and polystyrene, the polystyrene thereafter being removed, thus forming a fibre sheet, (ii) a two-component film of nylon 6 and polyethylene, the polyethylene thereafter being entirely or partially removed after which the film may be processed into a spun yarn, (iii) a three-component film of nylon 6, polyethylene terephthalate, and copolyesteramide which latter component properly adheres to the first two poorly adhering components, (iv) a three component film of nylon 6, a copolyamide of nylon 6 and 11, and polystyrene, which film can be readily fiberized and split after removal therefrom of polystyrene.
ES356075A 1967-07-12 1968-07-12 Process and apparatus for the manufacture of films and yarns, and the products thus manufactured Expired ES356075A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6709652A NL6709652A (en) 1967-07-12 1967-07-12

Publications (1)

Publication Number Publication Date
ES356075A1 true ES356075A1 (en) 1969-12-16

Family

ID=19800690

Family Applications (2)

Application Number Title Priority Date Filing Date
ES356075A Expired ES356075A1 (en) 1967-07-12 1968-07-12 Process and apparatus for the manufacture of films and yarns, and the products thus manufactured
ES1969151509U Expired ES151509Y (en) 1967-07-12 1969-08-30 A SYNTHETIC FILM.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES1969151509U Expired ES151509Y (en) 1967-07-12 1969-08-30 A SYNTHETIC FILM.

Country Status (5)

Country Link
CH (1) CH518791A (en)
DE (1) DE1779154B2 (en)
ES (2) ES356075A1 (en)
GB (1) GB1236097A (en)
NL (1) NL6709652A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853850C3 (en) * 1978-12-13 1981-10-01 W. U. H. Fernholz (Gmbh & Co Kg), 5882 Meinerzhagen Polystyrene film
DE3132509C2 (en) * 1981-08-18 1984-06-14 Dynamit Nobel Ag, 5210 Troisdorf Method and slot tool for producing a color wedge film
US4533510A (en) * 1983-09-19 1985-08-06 Nissel Frank R Method and apparatus for continuously co-extruding a sheet
FR2585003B1 (en) * 1985-07-17 1988-03-04 Hutchinson IMPROVEMENTS IN OR RELATING TO SEALS FOR PRESERVED JARS OR SIMILAR CONTAINERS, IN PROCESSES AND TOOLS IMPLEMENTED IN THEIR MANUFACTURE
FR2615784A1 (en) * 1987-05-27 1988-12-02 Siamp Cedap Reunies Method of delayed thermoforming of a sheet of brittle polymer, sheet for implementing the method, and corresponding containers
EP2836361B1 (en) * 2012-04-13 2021-09-08 Case Western Reserve University Production of micro- and nano-fibers by continuous microlayer coextrusion
US10286585B2 (en) * 2015-08-17 2019-05-14 Case Western Reserve University Fiber reinforced hydrogels and methods of making same

Also Published As

Publication number Publication date
ES151509U (en) 1969-11-16
DE1779154A1 (en) 1971-09-02
ES151509Y (en) 1970-08-01
CH518791A (en) 1972-02-15
GB1236097A (en) 1971-06-16
NL6709652A (en) 1969-01-14
DE1779154B2 (en) 1978-05-11

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