US2985503A - Method for making a plastic thread - Google Patents

Method for making a plastic thread Download PDF

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Publication number
US2985503A
US2985503A US804910A US80491059A US2985503A US 2985503 A US2985503 A US 2985503A US 804910 A US804910 A US 804910A US 80491059 A US80491059 A US 80491059A US 2985503 A US2985503 A US 2985503A
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US
United States
Prior art keywords
strip
plastic
fabric
rollers
filaments
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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US804910A
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English (en)
Inventor
Becker Hermann
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Individual
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Individual
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Publication date
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Application granted granted Critical
Publication of US2985503A publication Critical patent/US2985503A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/426—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by cutting films
    • 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
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/08—Fibrillating cellular materials
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/47—Processes of splitting film, webs or sheets

Definitions

  • the invention relates to plastic filaments adapted for textile fabrics and to processes for the production of such plastic filaments.
  • a plastic filament for textile fabrics normally consists either of one monofilar fibre or of relatively short staples of monofilar fibres which are spun together.
  • the invention contemplates a flat filament folded irregularly in its longitudinal direction.
  • Fig. 1 is a side elevation view of an apparatus for manufacturing filaments of the invention
  • Fig. 2 is a plan view of this apparatus
  • Fig. 3 shows a filament according to the invention on enlarged scale
  • Fig. 4 shows diagrammatically a fabric made of such filaments.
  • Fig. 5 shows an elevation of a part of a modified apparatus for manufacturing such filaments.
  • the filament according to this invention is made out of a thin strip or of a thin foil of plastic material adapted to be formed as a thin foil, strip or tube; eg a polyvinyl chloride or a polyethylene.
  • the strip may have the form of a flat band having a width of a fraction of an inch such as, for example, Av-Vz inch, or of a band closed to a tube having a diameter of, for example, Ai inch; it may have a thicknes of one hundredth of an inch or less.
  • the apparatus consists essentially of three pairs of rollers 1, 2; 3, 4 and 5, 6, a rail 7 which can be heated and which is disposed between the pairs of rollers 1, 2 and 3, 4, a liquid container 8 with guide rollers 9, 10, 11, 12 and a winding means 13, as well as a number of knives 14.
  • the strips 16 are drawn by the pair of rollers 3, 4 through nozzle-shaped slots 17 in the rail 7. These slots have a rectangular cross-section of such a size that the individual strips 16 are folded over somewhat irregularly in each nozzle 17.
  • the breadth of "ice the folded strip may be one half up to one third of the breadths of the unfolded strip. For processing strips of 6 mm. breadth the cross-section of a slot may, for example, be 0.1 x 0.02 inch.
  • the strips 19 thus folded enter the liquid container 8, which is filled with water at a temperature of from 80 to approximately 100 C.
  • the strips 19 initially travel over a roller 9 which is outside of the liquid, then beneath two rollers 10 and 11, which are approximately half immersed in the water and then leave the container 8 after pasing over a roller 12 which is not in the water.
  • the strips are then gripped by the pair of rollers 5, 6, the peripheral speed of which is about 3-4 times faster than the peripheral speed of the pair of rollers 3, 4. Because of this difference in the peripheral speeds, the strip which is in the liquid of the container 8 is stretched to 3-4 times its length.
  • Each of the strip 20 which are stretched in this way is then wound on a conicalbobbin 13.
  • each of the conical bobbins 13 has its own drive means and a thread guide 21 so that the winding speed is constant.
  • the stretching can under certain circumstances be of such a degree that a part of the strip becomes fibrous.
  • the breadth of the strip 16 is decreased by the stretching.
  • a strip out :8 mm. broad may be narrowed by the slot to 3 mm. and by the stretching to a fiat filament of 1 mm. breadth and approximately 0.2 mm. thickness.
  • the uniform heating of the rail 7 is obtained by dipping the lower end of the rail 7 into a glycerine bath 18 at a temperature of approximately 7080 C.
  • the apparatus can of course be modified according to dififerent requirements and materials. In many cases, it is advisable to guide the strips 19 through a hot air duct between the pairs of rollers 3, 4, and 5, 6 instead of through a water bath.
  • an extruder 21 extrudes several small tubes 22 of polyethylene. Each tube may have a diameter of V 4 and a wall of V or less.
  • the tubes 22 are transported by a pair of rollers 27, 255 having essentially the velocity of extrusion.
  • the tubes 22 are then fed into slots 23a, 25a, 26a of three rails 23, 25, 26 respectively which rails dip into a glycerine bath 24 of approximately 70-80 C.
  • the base of the slots 23a, 25a, 26a is fiat, its width decreasing from rail 23 to rail 26; this width may for instance be the following: slot 23a /2", slot 25a slot 26a In these slots the tube is flattened and folded longitudinally.
  • the resulting strip 22a is transported by a pair of rollers 29, 30 into a bath 8, as shown in Figs. 1 and 2.
  • the circumferential speed of the rollers 29, 30 exceed the circumferential speed of the rollers 27, 28, thereby exerting a stretching force on the tube 22 and the strip 22a.
  • This stretching may be up to or more; for instance half of the whole stretching of 300% may be done between the rollers 27, 28 and 29, 30 while the other half is done in the bath 8.
  • the slots 23a, 25a and 26a are situated slightly above a line connecting the gripping points of the rollers 27, 28 and 29, 30. Therefore these slots have the form of slits in the top of the rails 23, 25, 26. These slits enlarge towards their respective mouths and towards the top of the rails.
  • a fabric made of such polyethylene filaments has a tensile strength and resistance to abrasion which are considerably greater than that of a linen or cotton fabric of the same weight.
  • the fact that such a fabric has a high degree of transparency can be desirable in many cases. If it is desirable to prevent such transperancy the foil, strip or tube may be dyed.
  • a fabric of such filaments, and especially of such polyethylene filaments is particularly usable for tents and awnings.
  • it may be made practically water-tight by exposing the fabric to a temperature of aesaeoa 3 1004 0 for about 15-100 seconds (this time being more especially dependent on the thickness of the fabric) and to hold the fabric during this time under the resulting shrinkage tension.
  • the fabric has in fact'a tendency to shrink during such a treatment. It is generally advisable to permit a certain degree of shrinkage, but the fabric should be so held that it cannot yield completely to the shrinkage tension being set up.
  • this treatment of the fabric takes place on a tentering frame in such a way that it travels through a heating path with a length of 6 meters, at a speed of 12 m./ min.
  • the temperature is in addition dependent to a certain degree on the speed of travel, in that it must generally be higher in proportionas the residence time of the material in the heating zone is shorter.
  • the fabric can be made Watertight but permeable to air.
  • a process for producing a plastic filament comprising irregularly folding a fiat plastic strip by drawing the same through and against the bottom and sides of a slot, while subjecting said strip to heat and then stretching the folded strip by heating and placing the same under longitudinal tension, thereby producing a plastic filament.
  • a process as claimed in claim 1 comprising rolling the strip before placing the same under tension.
  • a process as claimed in claim 2 comprising supply- 4 ing the strip for drawing through the slot by flattening a tube of said plastic.
  • a process as claimed in claim 2 comprising cutting the flat strip from a larger strip of said plastic and sirnu1- taneouslycutting other flat strips from said larger strip and identically processing said other strips.
  • a process as claimed in claim 2 comprising successiveively passing said strip through a series of slots including the first said slot, the slots being of successively narrowing breadth.
  • a process as claimed in claim 2 comprising weaving the filament into a fabric, heat treating the fabric, and supporting the fabric to substantially avoid shrinkage during the heat treatment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
US804910A 1958-09-24 1959-04-08 Method for making a plastic thread Expired - Lifetime US2985503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE240958X 1958-09-24
DEB48494A DE1127535B (de) 1958-09-24 1958-09-24 Verfahren zum Herstellen eines Kunststoffadens

Publications (1)

Publication Number Publication Date
US2985503A true US2985503A (en) 1961-05-23

Family

ID=25766713

Family Applications (1)

Application Number Title Priority Date Filing Date
US804910A Expired - Lifetime US2985503A (en) 1958-09-24 1959-04-08 Method for making a plastic thread

Country Status (7)

Country Link
US (1) US2985503A (fr)
BE (1) BE577544A (fr)
CH (1) CH357500A (fr)
DE (1) DE1127535B (fr)
FR (1) FR1219816A (fr)
GB (1) GB859521A (fr)
NL (2) NL237949A (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132194A (en) * 1962-04-09 1964-05-05 Phillips Petroleum Co Preparation of microporous filamentous articles
US3249591A (en) * 1962-06-01 1966-05-03 Du Pont Homopolyamide of recurring bis (paraaminocyclohexyl) methane-azelamide units
US3249668A (en) * 1961-10-20 1966-05-03 Scragg & Sons Process and apparatus for manufacturing branched filaments
US3290420A (en) * 1962-07-05 1966-12-06 Columbian Rope Co Process for making thin oriented plastic strips and tape
US3356783A (en) * 1966-02-04 1967-12-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3372221A (en) * 1965-08-06 1968-03-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3372222A (en) * 1965-08-06 1968-03-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3400193A (en) * 1965-07-15 1968-09-03 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3416772A (en) * 1966-06-03 1968-12-17 Phillips Petroleum Co Method of fibrillation
US3416714A (en) * 1966-07-05 1968-12-17 Phillips Petroleum Co Method of fibrillation
US3480507A (en) * 1965-09-02 1969-11-25 Shell Oil Co Process for the preparation of fibrous,filamentous products and the resultant product
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics
US3514368A (en) * 1968-03-27 1970-05-26 Acme Backing Corp Laminated plastic yarns and method and apparatus for making the same
US3539374A (en) * 1966-11-16 1970-11-10 Celanese Corp Porous article
US3645299A (en) * 1966-10-25 1972-02-29 Chemiefaser Lenzing Ag Process for the production of foil ribbon fabrics and apparatus for carrying out this process
US5076773A (en) * 1987-04-06 1991-12-31 Filteco S.P.A. Apparatus for producing thermoplastic yarns
US5085566A (en) * 1988-12-19 1992-02-04 Windmoller & Holscher Apparatus for manufacturing oriented multi-ply tapes
CN102877215A (zh) * 2011-07-14 2013-01-16 襄樊新四五印染有限责任公司 防皱牵引带制作方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629367A (fr) * 1962-03-09
GB1040663A (en) * 1964-03-16 1966-09-01 Plasticisers Ltd Improvements in or relating to yarn, cord, twine and ropes including plied yarns, cords, twine and ropes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986979A (en) * 1931-01-02 1935-01-08 Chemical Holding Corp Production of artificial straw
US1994057A (en) * 1933-04-15 1935-03-12 Sylvania Ind Corp Yarn and method for its production
US2367173A (en) * 1942-02-26 1945-01-09 Martin Elmore Louis Process for melt extruding synthetic polymers
US2461975A (en) * 1945-10-20 1949-02-15 Visking Corp Method of making flattened thermoplastic tubing of predetermined desired characteristics
US2612679A (en) * 1950-10-23 1952-10-07 Ladisch Rolf Karl Filaments containing fillers
US2614288A (en) * 1947-03-28 1952-10-21 Chavannes Synthetic Fibres Inc Apparatus and method for producing thermoplastic fibers
US2674025A (en) * 1949-08-15 1954-04-06 Texiclon Corp Polymeric filaments
US2728950A (en) * 1954-05-06 1956-01-03 Dow Chemical Co Process for producing fibers from films of polymeric materials
US2858186A (en) * 1956-10-05 1958-10-28 Dow Chemical Co Process for preparation of filamentary articles from polymer latexes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE317974C (fr) *
GB159867A (en) * 1920-03-04 1922-04-06 Cellophane Sa Strips or bands of non-fibrous cellulosic material
NL32904C (fr) * 1930-04-25
CH180650A (de) * 1934-09-21 1935-11-15 Lehner Jakob Verfahren und Vorrichtung zur Erzeugung von Fäden und schmalen Streifen von regenerierter Zellulose, Zellulosederivaten und ähnlichen Kunstmassen.
DE667234C (de) * 1936-07-01 1938-11-07 I G Farbenindustrie Akt Ges Verfahren zur Herstellung von verspinnbaren Faeden und Fasern aus organischen thermoplastischen Massen
DE763277C (de) * 1942-06-09 1952-11-10 Ig Farbenindustrie Ag Verfahren zur Herstellung von Faeden aus Filmen von Kunststoffen
BE451009A (fr) * 1942-06-09
DE913574C (de) * 1942-06-09 1954-06-14 Cassella Farbwerke Mainkur Ag Verfahren zur Herstellung von Faeden aus Filmen von Kunststoffen
NL95920C (fr) * 1955-09-19

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986979A (en) * 1931-01-02 1935-01-08 Chemical Holding Corp Production of artificial straw
US1994057A (en) * 1933-04-15 1935-03-12 Sylvania Ind Corp Yarn and method for its production
US2367173A (en) * 1942-02-26 1945-01-09 Martin Elmore Louis Process for melt extruding synthetic polymers
US2461975A (en) * 1945-10-20 1949-02-15 Visking Corp Method of making flattened thermoplastic tubing of predetermined desired characteristics
US2614288A (en) * 1947-03-28 1952-10-21 Chavannes Synthetic Fibres Inc Apparatus and method for producing thermoplastic fibers
US2674025A (en) * 1949-08-15 1954-04-06 Texiclon Corp Polymeric filaments
US2612679A (en) * 1950-10-23 1952-10-07 Ladisch Rolf Karl Filaments containing fillers
US2728950A (en) * 1954-05-06 1956-01-03 Dow Chemical Co Process for producing fibers from films of polymeric materials
US2858186A (en) * 1956-10-05 1958-10-28 Dow Chemical Co Process for preparation of filamentary articles from polymer latexes

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249668A (en) * 1961-10-20 1966-05-03 Scragg & Sons Process and apparatus for manufacturing branched filaments
US3132194A (en) * 1962-04-09 1964-05-05 Phillips Petroleum Co Preparation of microporous filamentous articles
US3249591A (en) * 1962-06-01 1966-05-03 Du Pont Homopolyamide of recurring bis (paraaminocyclohexyl) methane-azelamide units
US3290420A (en) * 1962-07-05 1966-12-06 Columbian Rope Co Process for making thin oriented plastic strips and tape
US3400193A (en) * 1965-07-15 1968-09-03 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3372221A (en) * 1965-08-06 1968-03-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3372222A (en) * 1965-08-06 1968-03-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3480507A (en) * 1965-09-02 1969-11-25 Shell Oil Co Process for the preparation of fibrous,filamentous products and the resultant product
US3356783A (en) * 1966-02-04 1967-12-05 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross section
US3416772A (en) * 1966-06-03 1968-12-17 Phillips Petroleum Co Method of fibrillation
US3416714A (en) * 1966-07-05 1968-12-17 Phillips Petroleum Co Method of fibrillation
US3645299A (en) * 1966-10-25 1972-02-29 Chemiefaser Lenzing Ag Process for the production of foil ribbon fabrics and apparatus for carrying out this process
US3539374A (en) * 1966-11-16 1970-11-10 Celanese Corp Porous article
US3514368A (en) * 1968-03-27 1970-05-26 Acme Backing Corp Laminated plastic yarns and method and apparatus for making the same
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics
US5076773A (en) * 1987-04-06 1991-12-31 Filteco S.P.A. Apparatus for producing thermoplastic yarns
US5085566A (en) * 1988-12-19 1992-02-04 Windmoller & Holscher Apparatus for manufacturing oriented multi-ply tapes
CN102877215A (zh) * 2011-07-14 2013-01-16 襄樊新四五印染有限责任公司 防皱牵引带制作方法

Also Published As

Publication number Publication date
FR1219816A (fr) 1960-05-19
NL127318C (fr)
GB859521A (en) 1961-01-25
DE1127535B (de) 1962-04-12
CH357500A (de) 1961-10-15
NL237949A (fr)
BE577544A (fr)

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