EP3039176A1 - Sparkling dyed double covered yarn and method for producing the same - Google Patents

Sparkling dyed double covered yarn and method for producing the same

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Publication number
EP3039176A1
EP3039176A1 EP14839165.9A EP14839165A EP3039176A1 EP 3039176 A1 EP3039176 A1 EP 3039176A1 EP 14839165 A EP14839165 A EP 14839165A EP 3039176 A1 EP3039176 A1 EP 3039176A1
Authority
EP
European Patent Office
Prior art keywords
yarn
dyed
polyamide
sheath
bright
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.)
Withdrawn
Application number
EP14839165.9A
Other languages
German (de)
French (fr)
Other versions
EP3039176A4 (en
Inventor
Alon Weiser
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.)
Nilit Ltd
Original Assignee
Nilit Ltd
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 Nilit Ltd filed Critical Nilit Ltd
Publication of EP3039176A1 publication Critical patent/EP3039176A1/en
Publication of EP3039176A4 publication Critical patent/EP3039176A4/en
Withdrawn legal-status Critical Current

Links

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
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • 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
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • 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
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
    • 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
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

Definitions

  • the present invention relates to a double-covered yarn having a sparkling effect, a process for making the same, and fabric comprising such a yarn. More specifically, the invention relates to a double covered sparkling yarn comprising a core yarn, a first flat bright polyamide sheath yarn and a second dyed polyamide sheath yarn, wherein the first and the second sheath yarn are wound around the core yarn in the same direction.
  • covered yarns such as single covered yarns obtained by winding a sheath yarn around a core yarn, and double-covered yarns obtained by further winding around the single covered yarn a second sheath yarn.
  • the resulting covered yarn may be employed for manufacturing stretch fabrics for various applications, for instance in the field of hosiery, underwear, socks, upper wear, and sportswear.
  • a process for the production of double covered elastomeric yarn is disclosed for instance in U.S. patent No. 6,240,716, wherein a spandex core is covered with a first sheath yarn to form a single covered yarn, and a second sheath yarn is wound around the single covered yarn.
  • the present invention provides a sparkling dyed double covered yarn comprising:
  • the core yarn is an elastomeric yarn, such as a spandex yarn.
  • the first sheath yarn is a bright flat polyamide yarn, especially a bright flat fully drawn polyamide yarn (FDY).
  • FDY bright flat fully drawn polyamide yarn
  • POY bright partially oriented polyamide yarn
  • the second sheath yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
  • the number of turns per meter of the bright polyamide yarn is between 300 and 1800 turns per meter.
  • the number of turns per meter of the dyed polyamide yarn is between 300 and 1800 turns per meter.
  • the invention provides a process for manufacturing a sparkling dyed double covered yarn comprising the steps of:
  • first and the second sheath yarn are wound in the same direction.
  • the core yarn is an elastomeric yarn, such as a spandex yarn.
  • the first sheath yarn is a bright flat polyamide yarn, especially a bright flat fully drawn polyamide yarn (FDY). In some other embodiments, the first sheath yarn is a bright partially oriented polyamide yarn (POY) or a bright textured polyamide yarn.
  • FDY bright flat fully drawn polyamide yarn
  • POY bright partially oriented polyamide yarn
  • the second sheath yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
  • the winding speed of the bright polyamide yarn is between 300 and 1800 turns per meter.
  • the winding speed of the dyed polyamide yarn is between 300 and 1800 turns per meter.
  • the invention provides a fabric comprising a sparkling dyed double covered yarn as described above.
  • FIG. 1 is a drawing showing the structure of an embodiment of the double covered yarn of the invention (40): core yarn (10), bright yarn (20) and dyed yarn (30); and
  • FIG. 2 is a drawing showing an embodiment of the double cover process of the invention: core yarn feeding bobbin (1), core yarn (10), bright yarn bottom spool (2), bright yarn (20), dyed yarn upper spool (3), dyed yarn (30), double covered yarn (40), double covered yarn receiving bobbin (4).
  • a sparkling colored yarn can be obtained by winding a first bright sheath yarn around a core yarn, and by further winding a second dyed sheath yarn around the first bright sheath yarn, the first and the second sheath yarn being wound in the same orientation.
  • the resulting double covered yarn can be easily knitted into fabrics which show both a homogenous color and a uniformly distributed sparkling effect.
  • core yarn or “core fiber” refer to a central yarn around which a first and a second sheath yarns are wound.
  • the core yarn may be elastomeric or non-elastomeric.
  • the core yarn is a spandex yarn.
  • spandex and "elastan” are used interchangeably and means a manufactured fiber in which the fiber-forming substance is a long chain synthetic elastomer comprised of a polyurethane-polyurea copolymer. Spandex in the range of about 11 to 350 decitex is suitable for use in making the double covered yarn of the present invention.
  • sheath yarn means a yarn comprising continuous filaments, bundled staple fibers, or spun staple fibers, or both filaments and staple fibers.
  • first sheath yarn is the sheath yarn wound around the core yarn to form a single covered yarn.
  • Suitable first sheath yarns for use in the present invention are bright flat yarns (especially fully drawn yarn FDY), bright partially oriented (POY) polyamide yarns or bright textured yarns.
  • First sheath yarns may have a round, an oval or a trilobal cross-section.
  • first sheath bright yarns for use in the present invention are Nylon 6.6 FLAT 22/7 BR trilobal (Nilit®Fibers), Nylon 6.6 FLAT 17/4 BR oval (Nilit®Fibers), Nylon 6.6 FLAT 17/3 BR trilobal (Nilit®Fibers) and Nylon 6.6 FLAT 44/34 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 27/7 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 17/3 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 22/7 BR trilobal (Nilit®Fibers) and Nylon 6.6 POY 27/12 BR trilobal (Nilit®Fibers).
  • the "second sheath yarn” is the sheath yarn wound around the single covered yarn to form a double covered yarn.
  • suitable second sheath yarns for use in the present invention are made of natural or dyed polyamide (e.g. spin dyed polyamide), and can be either textured, flat or POY yarns.
  • An example of a suitable second sheath yarn for use in the present invention is the Nylon 6.6 TEXTURED 44/34/1 BK (spin-dyed black yarn) from Nilit®Fibers.
  • the terms “bright”, “brilliant”, “shiny”, and “glossy” are used herein interchangeably and refer to the glossy effect of the first sheath yarn.
  • the term “sparkling” is used herein to define the effect produced by the double covered yarn of the invention (which is comparable to the sparkling of a diamond), this effect resulting from the specific arrangement of the two sheath yarns (a dyed yarn and a bright yarn) around the core yarn.
  • the first and second sheath yarns of the sparkling double covered yarn of the present invention have an identical twist orientation, i.e. both in the z-direction or both in the s-direction (Fig.l).
  • the first sheath yarn wound around the core yarn is made of a bright polyamide yarn
  • the second sheath yarn wound around the first sheath is made of a dyed polyamide yarn. This allows a uniform distribution of the color and the shining effect along the double- covered yarn and generates a uniform sparkling effect along the manufactured yarn.
  • the number of twists (or turns) of each of the first sheath yarn and the second sheath yarn may be similar or different according to the intensity of the sparkling effect which is required (i.e.
  • the resulting double covered yarn is shinier and less color effect is perceptible.
  • the sparkling double covered yarn of the invention may be manufactured with any standard double covering machine.
  • a bright polyamide yarn is placed on a bottom spool and a dyed polyamide yarn is placed on an upper spool (Fig.2).
  • the core yarn enters the machine from the bottom and is first covered with the flat bright sheath polyamide yarn at about 300-1800 turns per meter to form a single covered yarn.
  • the single covered yarn is then covered with the second dyed sheath polyamide yarn, which is wound in the same direction is about 300-1800 turns per meter.
  • the number of twists per meter and the winding speed of each of the bright yarn and the dyed yarn may be adjusted so as to obtain the desired sparkling effect.
  • the core yarn has the following characteristics: draw ratio of elastan 3,00, tenacity 3.9 cN/dtex, elongation 43.3%, and 1% oil.
  • the Nylon 6.6 FLAT 22/7 BR is a fully drawn yarn (FDY).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Knitting Of Fabric (AREA)

Abstract

The present invention provides a sparkling dyed double covered yarn comprising: (i) a core yarn; (ii) a first sheath yarn made of a bright polyamide yarn wound around the core yarn to form a single covered yarn; and (iii) a second sheath yarn made of a dyed polyamide yarn wound around said single covered yarn to form a double covered yarn; wherein the first sheath yarn and the second sheath yarn are wound in the same direction. The invention further provides processes for manufacturing a sparkling dyed double covered yarn and fabrics comprising the same.

Description

SPARKLING DYED DOUBLE COVERED YARN AND METHOD FOR PRODUCING THE SAME
Field of the Invention
The present invention relates to a double-covered yarn having a sparkling effect, a process for making the same, and fabric comprising such a yarn. More specifically, the invention relates to a double covered sparkling yarn comprising a core yarn, a first flat bright polyamide sheath yarn and a second dyed polyamide sheath yarn, wherein the first and the second sheath yarn are wound around the core yarn in the same direction.
Background of the Invention
Nowadays, numerous textile applications employ covered yarns, such as single covered yarns obtained by winding a sheath yarn around a core yarn, and double-covered yarns obtained by further winding around the single covered yarn a second sheath yarn. When an elastomeric core yarn is employed, the resulting covered yarn may be employed for manufacturing stretch fabrics for various applications, for instance in the field of hosiery, underwear, socks, upper wear, and sportswear. A process for the production of double covered elastomeric yarn is disclosed for instance in U.S. patent No. 6,240,716, wherein a spandex core is covered with a first sheath yarn to form a single covered yarn, and a second sheath yarn is wound around the single covered yarn.
However, in some textile applications such as hosiery, yarns having a sparkling effect may be of interest. In this case the air-jet entangling method is preferably used as it enables the production of yarns having a better luster. Air-jet entangling as a covering process for spandex elastomeric yarn is described for instance in U.S. patent No. 3,940,917. However, air-jet covered composite yarns present some drawbacks. Specifically, such composite yarns have loops extending from the covering component which partially obscure knitted stitch openings, resulting in a more opaque look to knitted hosiery. Further, in knitted hosiery the extending loops increase the likelihood that difficulties will be encountered during the knitting operation and when the finished hosiery is in use.
Therefore, there is a need for a simple and cost effective process for producing dyed yarns having a sparkling effect and which can be easily knitted.
It is thus an object of the invention to provide a yarn having both a homogeneous color and a sparkling effect all along the yarn.
It is another object of the invention to provide a dyed sparkling yarn for use in the textile industry, especially for hosiery and fashionable knitted garments.
It is still another object of the invention to provide a process for manufacturing a dyed sparkling yarn.
It is still another object of the invention to provide a fabric made of a dyed sparkling yarn.
Further purposes and advantages of this invention will appear as the description proceeds.
Summary of the Invention
In a first aspect, the present invention provides a sparkling dyed double covered yarn comprising:
(i) a core yarn;
(ii) a first sheath yarn made of a bright polyamide yarn wound around the core yarn to form a single covered yarn; and
(iii) a second sheath yarn made of a dyed polyamide yarn wound around said single covered yarn to form a double covered yarn;
wherein the first sheath yarn and the second sheath yarn are wound in the same direction. In some specific embodiments of the double covered yarn of the invention, the core yarn is an elastomeric yarn, such as a spandex yarn.
In some specific embodiments of the double covered yarn of the invention, the first sheath yarn is a bright flat polyamide yarn, especially a bright flat fully drawn polyamide yarn (FDY). In some other embodiments, the first sheath yarn is a bright partially oriented polyamide yarn (POY) or a bright textured polyamide yarn.
In some specific embodiments of the double covered yarn of the invention, the second sheath yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
In some specific embodiments of the double covered yarn of the invention, the number of turns per meter of the bright polyamide yarn is between 300 and 1800 turns per meter.
In some specific embodiments of the double covered yarn of the invention, the number of turns per meter of the dyed polyamide yarn is between 300 and 1800 turns per meter.
A particular embodiment of the sparkling dyed double covered yarn of the invention comprises:
(i) an elastomeric core yarn;
(ii) a first sheath yarn made of a bright flat fully drawn polyamide yarn wound around the core yarn to form a single covered yarn; and
(iii) a second sheath yarn made of a dyed textured polyamide yarn wound around said single covered yarn to form a double covered yarn; wherein the first sheath yarn and the second sheath yarn are wound in the same direction. In a second aspect, the invention provides a process for manufacturing a sparkling dyed double covered yarn comprising the steps of:
(i) providing a core yarn;
(ii) winding a first sheath yarn made of a bright polyamide yarn around said core yarn to form a single covered yarn; and
(iii) winding a second sheath yarn made of a dyed polyamide yarn around said single covered yarn to form a double covered yarn;
wherein the first and the second sheath yarn are wound in the same direction.
In some specific embodiments of the process of the invention, the core yarn is an elastomeric yarn, such as a spandex yarn.
In some specific embodiments of the process of the invention, the first sheath yarn is a bright flat polyamide yarn, especially a bright flat fully drawn polyamide yarn (FDY). In some other embodiments, the first sheath yarn is a bright partially oriented polyamide yarn (POY) or a bright textured polyamide yarn.
In some specific embodiments of the process of the invention, the second sheath yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
In some specific embodiments of the process of the invention, the winding speed of the bright polyamide yarn is between 300 and 1800 turns per meter.
In some specific embodiments of the process of the invention, the winding speed of the dyed polyamide yarn is between 300 and 1800 turns per meter. In a third aspect, the invention provides a fabric comprising a sparkling dyed double covered yarn as described above.
Brief Description of the Drawings
The above and other characteristics and advantages of the invention will be more readily apparent through the following examples, and with reference to the appended drawings, wherein:
FIG. 1 is a drawing showing the structure of an embodiment of the double covered yarn of the invention (40): core yarn (10), bright yarn (20) and dyed yarn (30); and
FIG. 2 is a drawing showing an embodiment of the double cover process of the invention: core yarn feeding bobbin (1), core yarn (10), bright yarn bottom spool (2), bright yarn (20), dyed yarn upper spool (3), dyed yarn (30), double covered yarn (40), double covered yarn receiving bobbin (4).
Detailed Description
It has been surprisingly found by the inventors that a sparkling colored yarn can be obtained by winding a first bright sheath yarn around a core yarn, and by further winding a second dyed sheath yarn around the first bright sheath yarn, the first and the second sheath yarn being wound in the same orientation. The resulting double covered yarn can be easily knitted into fabrics which show both a homogenous color and a uniformly distributed sparkling effect.
As used herein, the terms "core yarn" or "core fiber" refer to a central yarn around which a first and a second sheath yarns are wound. The core yarn may be elastomeric or non-elastomeric. In a specific embodiment of the invention, the core yarn is a spandex yarn.
The term "spandex" and "elastan" are used interchangeably and means a manufactured fiber in which the fiber-forming substance is a long chain synthetic elastomer comprised of a polyurethane-polyurea copolymer. Spandex in the range of about 11 to 350 decitex is suitable for use in making the double covered yarn of the present invention.
As used herein, the expression "sheath yarn" means a yarn comprising continuous filaments, bundled staple fibers, or spun staple fibers, or both filaments and staple fibers.
The "first sheath yarn" is the sheath yarn wound around the core yarn to form a single covered yarn. Suitable first sheath yarns for use in the present invention are bright flat yarns (especially fully drawn yarn FDY), bright partially oriented (POY) polyamide yarns or bright textured yarns. First sheath yarns may have a round, an oval or a trilobal cross-section. Examples of suitable first sheath bright yarns for use in the present invention are Nylon 6.6 FLAT 22/7 BR trilobal (Nilit®Fibers), Nylon 6.6 FLAT 17/4 BR oval (Nilit®Fibers), Nylon 6.6 FLAT 17/3 BR trilobal (Nilit®Fibers) and Nylon 6.6 FLAT 44/34 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 27/7 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 17/3 BR trilobal (Nilit®Fibers), Nylon 6.6 POY 22/7 BR trilobal (Nilit®Fibers) and Nylon 6.6 POY 27/12 BR trilobal (Nilit®Fibers).
The "second sheath yarn" is the sheath yarn wound around the single covered yarn to form a double covered yarn. Examples of suitable second sheath yarns for use in the present invention are made of natural or dyed polyamide (e.g. spin dyed polyamide), and can be either textured, flat or POY yarns. An example of a suitable second sheath yarn for use in the present invention is the Nylon 6.6 TEXTURED 44/34/1 BK (spin-dyed black yarn) from Nilit®Fibers.
The terms "bright", "brilliant", "shiny", and "glossy" are used herein interchangeably and refer to the glossy effect of the first sheath yarn. The term "sparkling" is used herein to define the effect produced by the double covered yarn of the invention (which is comparable to the sparkling of a diamond), this effect resulting from the specific arrangement of the two sheath yarns (a dyed yarn and a bright yarn) around the core yarn.
The first and second sheath yarns of the sparkling double covered yarn of the present invention have an identical twist orientation, i.e. both in the z-direction or both in the s-direction (Fig.l). In the method of the invention the first sheath yarn wound around the core yarn is made of a bright polyamide yarn, whereas the second sheath yarn wound around the first sheath is made of a dyed polyamide yarn. This allows a uniform distribution of the color and the shining effect along the double- covered yarn and generates a uniform sparkling effect along the manufactured yarn. The number of twists (or turns) of each of the first sheath yarn and the second sheath yarn may be similar or different according to the intensity of the sparkling effect which is required (i.e. more or less shiny, more or less colored). For instance, if the number of twists of the bright sheath yarn is more important than the number of twists of the dyed sheath yarn, the resulting double covered yarn is shinier and less color effect is perceptible.
The sparkling double covered yarn of the invention may be manufactured with any standard double covering machine. A bright polyamide yarn is placed on a bottom spool and a dyed polyamide yarn is placed on an upper spool (Fig.2). The core yarn enters the machine from the bottom and is first covered with the flat bright sheath polyamide yarn at about 300-1800 turns per meter to form a single covered yarn. The single covered yarn is then covered with the second dyed sheath polyamide yarn, which is wound in the same direction is about 300-1800 turns per meter. The number of twists per meter and the winding speed of each of the bright yarn and the dyed yarn may be adjusted so as to obtain the desired sparkling effect. The present invention is further described by the following examples which are not intended to limit the scope of the present invention, which scope is defined by the appended claims.
EXAMPLE 1
In this example, production of a sparkling black double covered yarn was done on a double covering machine Menegatto model 1500, with the following covering settings and yarn properties:
The core yarn has the following characteristics: draw ratio of elastan 3,00, tenacity 3.9 cN/dtex, elongation 43.3%, and 1% oil. The Nylon 6.6 FLAT 22/7 BR is a fully drawn yarn (FDY).
As a result of the above process, a sparkling black double covered elastic yarn was produced according to the method above. This sparkling black double covered yarn glistens with a delicate, refined shine and may be further used for the manufacture of fashionable knitted stretch garments.

Claims

Claims:
1. A sparkling dyed double covered yarn comprising:
(i) a core yarn;
(ii) a first sheath yarn made of a bright polyamide yarn wound around the core yarn to form a single covered yarn; and
(iii) a second sheath yarn made of a dyed polyamide yarn wound around said single covered yarn to form a double covered yarn;
wherein the first sheath yarn and the second sheath yarn are wound in the same direction.
2. The sparkling dyed double covered yarn of claim 1, wherein the core yarn is an elastomeric yarn.
3. The sparkling dyed double covered yarn of claim 2, wherein the elastomeric yarn is a spandex yarn.
4. The sparkling dyed double covered yarn of claim 1, wherein the bright polyamide yarn is a bright flat fully drawn polyamide yarn (FDY).
5. The sparkling dyed double covered yarn of claim 1, wherein the bright polyamide yarn is a bright partially oriented polyamide yarn (POY) or a bright textured polyamide yarn.
6. The sparkling dyed double covered yarn of claim 1, wherein the dyed polyamide yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
7. The sparkling dyed double covered yarn of claim 1, wherein the number of turns per meter of the bright polyamide yarn is between 300 and 1800 turns per meter.
The sparkling dyed double covered yarn of claim 1, wherein the number of turns per meter of the dyed polyamide yarn is between 300 and 1800 turns per meter.
A sparkling dyed double covered yarn comprising:
(i) an elastomeric core yarn;
(ii) a first sheath yarn made of a bright flat fully drawn polyamide yarn wound around the core yarn to form a single covered yarn; and
(iii) a second sheath yarn made of a dyed textured polyamide yarn wound around said single covered yarn to form a double covered yarn;
wherein the first sheath yarn and the second sheath yarn are wound in the same direction.
A process for manufacturing a sparkling dyed double covered yarn comprising the steps of:
(i) providing a core yarn;
(ii) winding a first sheath yarn made of a bright polyamide yarn around said core yarn to form a single covered yarn; and
(iii) winding a second sheath yarn made of a dyed polyamide yarn around said single covered yarn to form a double covered yarn;
wherein the first and the second sheath yarn are wound in the same direction.
The process of claim 10, wherein the core yarn is an elastomeric yarn.
The process of claim 11, wherein the elastomeric yarn is a spandex yarn.
13. The process of claim 10, wherein the bright polyamide yarn is a bright flat fully drawn polyamide yarn (FDY).
14. The process of claim 10, wherein the bright polyamide yarn is a bright partially oriented polyamide yarn (POY) or a bright textured polyamide yarn.
15. The process of claim 10, wherein the dyed polyamide yarn is a dyed textured polyamide yarn, a dyed flat polyamide yarn, or a dyed POY yarn.
16. The process of claim 10, wherein the winding speed of the first sheath yarn is between 300 and 1800 turns per meter.
17. The process of claim 10, wherein the winding speed of the second sheath yarn is between 300 and 1800 turns per meter.
18. A fabric comprising a sparkling dyed double covered yarn according to claim 1.
EP14839165.9A 2013-08-29 2014-08-26 Sparkling dyed double covered yarn and method for producing the same Withdrawn EP3039176A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL228197A IL228197B (en) 2013-08-29 2013-08-29 Sparkling dyed double covered yarn and method for producing the same
PCT/IL2014/050765 WO2015029027A1 (en) 2013-08-29 2014-08-26 Sparkling dyed double covered yarn and method for producing the same

Publications (2)

Publication Number Publication Date
EP3039176A1 true EP3039176A1 (en) 2016-07-06
EP3039176A4 EP3039176A4 (en) 2017-07-05

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EP14839165.9A Withdrawn EP3039176A4 (en) 2013-08-29 2014-08-26 Sparkling dyed double covered yarn and method for producing the same

Country Status (5)

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US (1) US20160237596A1 (en)
EP (1) EP3039176A4 (en)
CN (1) CN105683431B (en)
IL (1) IL228197B (en)
WO (1) WO2015029027A1 (en)

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CN105683431A (en) 2016-06-15
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US20160237596A1 (en) 2016-08-18
IL228197B (en) 2018-02-28
CN105683431B (en) 2018-10-23

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