EP3808884A1 - Fabric comprising coated yarn capable of controlling transmittance - Google Patents

Fabric comprising coated yarn capable of controlling transmittance Download PDF

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Publication number
EP3808884A1
EP3808884A1 EP20818721.1A EP20818721A EP3808884A1 EP 3808884 A1 EP3808884 A1 EP 3808884A1 EP 20818721 A EP20818721 A EP 20818721A EP 3808884 A1 EP3808884 A1 EP 3808884A1
Authority
EP
European Patent Office
Prior art keywords
yarn
resin
fabric
color
inorganic material
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.)
Pending
Application number
EP20818721.1A
Other languages
German (de)
French (fr)
Other versions
EP3808884A4 (en
Inventor
Sang Hyun Na
Cheol Hyun Jung
Hun Hee Kang
Seop Lee
Hyo Sang Kim
Heon Seung CHU
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.)
ALKENZ CO Ltd
Original Assignee
ALKENZ CO 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 ALKENZ CO Ltd filed Critical ALKENZ CO Ltd
Publication of EP3808884A1 publication Critical patent/EP3808884A1/en
Publication of EP3808884A4 publication Critical patent/EP3808884A4/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • 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
    • 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
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/47—Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/76—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon oxides or carbonates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D06M15/248—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing chlorine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/507—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/06—Dyes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D10B2503/00—Domestic or personal
    • D10B2503/03—Inside roller shades or blinds

Definitions

  • the present invention relates to a fabric comprising coated yarn capable of controlling transmittance, and more particularly, to a fabric comprising coated yarn capable of controlling transmittance, which can reduce a glare effect by controlling light transmittance through the coated yarn using a colored yarn.
  • conventional coated yarns are industrial fibers that use a coated yarn including a core yarn with a plastic material coated thereon, and are manufactured through a process of warping, weaving, and tentering.
  • the above-described coated yarns have been used as industrial fibers such as blinds for decades.
  • the above-described coated yarns include a core portion formed of a yarn, and a sheath portion formed by coating a polymer resin on the yarn of the core portion.
  • a polyester material having properties of excellent elasticity, less wrinkle formation, shape retention, and high strength is mainly used for the yarn forming the core portion.
  • PET polyethylene terephthalate
  • the yarn forming the core portion is transparent or has a white-based color.
  • Plastic materials such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and thermoplastic polyurethane (TPU) are used as the polymer resin forming the sheath portion.
  • PVC polyvinyl chloride
  • PE polyethylene
  • PP polypropylene
  • TPU thermoplastic polyurethane
  • Korean Patent Registration No. 0594992 discloses imparting functionality such as flame retardancy and fire retardancy to a woven fabric manufactured by coating, on an outer shell formed of a glass fiber or a polyester fiber, a coating agent including a plasticizer and a flame retardant, and a polymer material such as PVC.
  • Korean Patent Registration No. 1286628 discloses forming a coated yarn with functionality such as flame retardancy, by including a core layer made of a polyolefin-based resin and a coating layer having a flame retardant component and the polyolefin-based resin that is the same as or different from the core layer.
  • coated yarn and the fabrics manufactured using the coated yarn are widely used as blind fabrics due to the properties of their materials.
  • the blind fabrics are interior products for blocking sunlight, it may be necessary for the blind fabrics to appropriately control sunlight so as to remove a glare effect due to the amount of background lighting or sunlight, thereby making the occupant's eyes comfortable within a given indoor environment.
  • Korean Patent Application Publication No. 2018-0001531 discloses a technique of depositing any one metal selected from aluminum, copper, nickel, and silver on one or both sides of a sunscreen blind fabric.
  • the metal deposition technique mentioned above has problems in that it is a process performed after manufacturing the fabrics, and thus lowers production processability and price competitiveness of the fabrics, and due to the depositing of the metal, the color or design of the fabrics cannot be freely implemented.
  • the present invention is to address the above-described problems in the art.
  • the present invention is directed to providing a fabric comprising a coated yarn capable of controlling transmittance, in which a colored yarn is used as a yarn constituting the coated yarn so as to lower light transmittance such that there is no glare effect from a bright color fabric.
  • the present invention is further directed to providing a fabric comprising a coated yarn capable of controlling transmittance suitable for indoor blinds, in which it is possible to reduce both indoor cooling and heating energy loss due to an external environment and a glare effect due to a light source by increasing light reflectance and lowering transmittance by controlling an amount of inorganic material contained in a polymer resin for coating a core yarn of a coated yarn.
  • the coated yarn is composed of a core yarn and a coating layer for coating the core yarn, wherein the core yarn is a colored yarn having a color L value of 0 to 70, the coating layer is formed of a polymer resin containing an inorganic material, and the fabric has a color L value of 70 or higher, light reflectance (R) of 40 to 70%, and light absorption rate (A) of 25% or higher, and satisfies the following equations (1) and (2): 5 ⁇ A / T 0.9 ⁇ R / A ⁇ 3 wherein R refers to the light reflectance, T refers to a transmittance, and A refers to the light absorption rate.
  • the fabric satisfies the following equation (3): 0.95 ⁇ log x L ⁇ 5.5 wherein x refers to an integral amount of inorganic material (phr) contained in the polymer resin, and L refers to an integer of the color L value of the core yarn.
  • the core yarn is any one of multi-filament yarn, spun yarn, mono-filament yarn, or composite yarn
  • the core yarn has a fineness of 50 to 1,000 denier, and the coated yarn has a fineness of 100 to 5,000 denier.
  • the polymer resin forming the coating layer is any one of polyvinyl chloride (PVC) resin, polypropylene (PP) resin, polyethylene (PE) resin, polyethylene terephthalate glycol (PETG) resin, polyethylene terephthalate (PET) resin, ethylene vinyl acetate (EVA) resin, thermoplastic elastomer (TPE) resin, thermoplastic polyurethane (TPU) resin, or thermoplastic polyolefin (TPO) resin, or a mixture of two or more thereof.
  • PVC polyvinyl chloride
  • PP polypropylene
  • PE polyethylene
  • PET polyethylene terephthalate glycol
  • EVA ethylene vinyl acetate
  • TPE thermoplastic elastomer
  • TPU thermoplastic polyurethane
  • TPO thermoplastic polyolefin
  • the inorganic material contained in the polymer resin is any one of antimony trioxide (Sb 2 O 3 ), magnesium hydroxide (Mg(OH) 2 ), titanium dioxide (TiO 2 ), aluminum hydroxide (Al(OH) 3 ), calcium carbonate, talc, zinc oxide (ZnO), graphite, carbon black, or silica (SiO 2 ), or a mixture of two or more thereof.
  • the inorganic material is contained in the polymer resin in an amount of 1 to 40 phr (parts per hundred resin).
  • the fabric comprising the coated yarn capable of controlling transmittance can increase the light absorption rate and lower the transmittance by using the colored yarn as the core yarn and including inorganic materials in the coating layer, the glare effect from bright color fabrics can be removed.
  • the fabric comprising the coated yarn capable of controlling transmittance can reduce both indoor cooling and heating energy loss due to an external environment and the glare effect from a light source by increasing the light reflectance and lowering the transmittance, the fabric can be suitable for indoor blinds.
  • the present invention relates to a fabric comprising a coated yarn which is composed of a core yarn and a coating layer for coating the core yarn,
  • the core yarn constituting the coated yarn according to an embodiment of the present invention is formed of a colored yarn having a color L value of 0 to 70, and the coating layer is formed of a polymer resin containing an inorganic material.
  • the core yarn has the color L value of 0 to 70 and thus absorbs light, it may act to lower transmittance of the fabric manufactured with the coated yarn.
  • the core yarn accommodates any color having the color L value of 0 to 70, and may use any one of multi-filament yarn, spun yarn, mono-filament yarn, or composite yarn.
  • the core yarn does not have a limited fineness. However, when used for blinds, considering the weight of the fabric, it is preferable to use the core yarn having a fineness of 50 to 1,000 denier, and it is preferable for the coated yarn to have a fineness of 100 to 5,000 denier.
  • Any resin capable of coating the core yarn may be used as a polymer resin forming the coating layer for coating the core yarn, and for example, any one of polyvinyl chloride (PVC) resin, polypropylene (PP) resin, polyethylene (PE) resin, polyethylene terephthalate glycol (PETG) resin, polyethylene terephthalate (PET) resin, ethylene vinyl acetate (EVA) resin, thermoplastic elastomer (TPE) resin, thermoplastic polyurethane (TPU) resin, or thermoplastic polyolefin (TPO) resin, or a mixture of two or more thereof may be used as the polymer resin.
  • PVC polyvinyl chloride
  • PP polypropylene
  • PE polyethylene
  • PET polyethylene terephthalate glycol
  • EVA ethylene vinyl acetate
  • TPE thermoplastic elastomer
  • TPU thermoplastic polyurethane
  • TPO thermoplastic polyolefin
  • the polymer resin may additionally contain a plasticizer, a lubricant, and the like to enhance processability, and may additionally contain functional materials such as flame retardants, antibacterial agents, and UV stabilizers to enhance the functionality of the coated yarn.
  • any inorganic material capable of reflecting or absorbing light may be used as the inorganic material contained in the polymer resin, and for example, any one of antimony trioxide (Sb 2 O 3 ), magnesium hydroxide (Mg(OH) 2 ), titanium dioxide (TiO 2 ), aluminum hydroxide (Al(OH) 3 ), calcium carbonate, talc, zinc oxide (ZnO), graphite, carbon black, or silica (SiO 2 ), or a mixture of two or more thereof, may be used as the polymer resin.
  • the inorganic material is contained in the polymer resin in an amount of 1 to 40 phr (parts per hundred resin).
  • the inorganic material is contained in the polymer resin in an amount of 40 phr or less.
  • the fabric comprising the coated yarn composed of the core yarn which is a colored yarn having the color L value of 0 to 79 and the coating layer which is the polymer resin containing the inorganic material, as described above, has a color determined according to a pigment of the coating layer.
  • the fabric has a color with the color L value of 70 or higher, it has a reduced light transmittance due to a light reflectance (R) of 40 to 70% and a high light absorption rate (A) of 25% or higher, and satisfies the following equations (1) and (2): 5 ⁇ A / T 0.9 ⁇ R / A ⁇ 3 wherein R refers to the light reflectance, T refers to the transmittance, and A refers to the light absorption rate.
  • Equation (1) indicates that the transmittance (T) of the fabric according to the embodiment of the present invention is 5 times or more lower than the light absorption rate (A) thereof. Accordingly, when the light reflectance (R) is constant, it is possible to control the glare effect from the fabric due to the light source by controlling the light absorption rate (A) in inverse proportion to the transmittance (T).
  • Equation (2) indicates the relationship between the light reflectance and the light absorption rate, and the light reflectance of the fabric is a value representing sharpness or beauty of the fabric appearance.
  • the light reflectance, the transmittance, and the light absorption rate of the fabric according to the embodiment of the present invention are physical property values that may be controlled according to the color L value of the core yarn and the amount of inorganic material (phr) contained in the polymer resin.
  • the color L value of the fabric may be lowered.
  • the transmittance by increasing the light reflectance and the light absorption rate by increasing the amount of the inorganic material contained in the polymer resin
  • the texture and price competitiveness of the fabric may be lowered due to the increased amount of inorganic material contained the polymer resin.
  • Equation (3) is a log value based on the color L value of the core yarn and the amount of inorganic material contained in the polymer resin.
  • the log value is less than 0.95, this indicates that an excess of the inorganic material is contained in the polymer resin in consideration of the light reflectance and the transmittance.
  • the log value is greater than 5.5, since too little inorganic material is contained in the polymer resin to control the transmittance, the glare effect may occur.
  • the embodiment of the present invention by controlling the color L value of the core yarn and the amount of inorganic material contained in the polymer resin within the range of Equation (3), occurrence of the glare effect from the bright color fabrics can be lowered and thus the user's comfort can be improved.
  • the glare effect caused by the light source can be lowered, and thus the bright color fabrics can be suitable for indoor blinds.
  • PVC polyvinyl chloride
  • EVA ethylene vinyl acetate
  • DSP plasticizer
  • ZnO zinc oxide
  • TiO 2 titanium dioxide
  • polyester dope dyed yarn was used as the core yarn.
  • 50 parts by weight of polyvinyl chloride (PVC) resin, 20 parts by weight of ethylene vinyl acetate (EVA) resin, 27 parts by weight of plasticizer (DOTP), 0.5 parts by weight of lubricant (zinc stearic acid), 0.5 parts by weight of antibacterial agent (BAC-300Z), and 2 parts by weight of an ultraviolet stabilizer (benzophenone-based) were mixed to provide a mixture of resins, and the mixture of resins was used as the polymer resin of the coating layer.
  • titanium dioxide was included as the inorganic material in the mixture of resins.
  • Coated yarn of about 1,000D was manufactured by coating the mixture of resins on the core yarn at a coating speed of 500 to 1000 m/min at 150 to 180 °C using a single extrusion coating machine. During the coating process, in a state where the yarn was fixed to a winder after being passed through a nozzle, the yarn was yarn-coated by injecting the coating material composition into a hopper of an extruder and melt-extruding the yarn through the extruder.
  • the fabric comprising the coated yarn capable of controlling transmittance according to the embodiment of the present invention was manufactured using the coated yarn manufactured through the above-described process.
  • Table 2 shows control of the color L value of the core yarn and the amount of inorganic material contained in the polymer resin according to Embodiments 1 to 17.
  • the color L value of the core yarn, and the color L value, the light reflectance, the transmittance and the light absorption rate of the fabric were measured using a Konica Minolta CM-5 spectrophotometer and a PerkinElmer Lambda UV/VIS/NIR spectrophotometer, and the glare class of the fabric was measured using a test method according to European EN 14501.
  • Embodiment 6 which has a log value of less than 0.95, does not have a significant difference in the color L value of the fabric, the light reflectance, the transmittance, and the glare class compared to Embodiments 4 and 5, which used the same core yarn. Therefore, it can be seen that in Embodiment 6, an excessive amount of inorganic material was contained in the polymer resin in consideration of the color L value of the fabric, the light reflectance, the transmittance, and the glare class.
  • Embodiment 13 which has a log value of less than 0.95, an excessive amount of inorganic material was contained in the polymer resin in consideration of the color L value of the fabric, the light reflectance, the transmittance, and the glare class, when compared to Embodiments 10 and 11.
  • Embodiment 14 which has a log value of more than 5.5, the amount of inorganic material contained in the polymer resin is low compared to the color L value of the core yarn, so the transmittance is high and the glare class is 2, and thus the glare effect occurs.
  • the log value is in the range of 0.95 to 5.5
  • the amount of inorganic material contained in the polymer resin is controlled while maintaining a satisfactory light reflectance, transmittance, and glare class.

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Abstract

The present invention relates to a fabric comprising a coated yarn which is composed of a core yarn and a coating layer for coating the core yarn, and which can control transmittance, wherein the core yarn is a colored yarn having a color L value of 0-70, the coating layer is formed of a polymer resin containing an inorganic material, and the fabric has a color L value of 70 or higher, a light reflectance (R) of 40-70% and a light absorption rate (A) of 25% or higher.

Description

    TECHNICAL FIELD
  • The present invention relates to a fabric comprising coated yarn capable of controlling transmittance, and more particularly, to a fabric comprising coated yarn capable of controlling transmittance, which can reduce a glare effect by controlling light transmittance through the coated yarn using a colored yarn.
    • BACKGROUND ART
  • In general, conventional coated yarns are industrial fibers that use a coated yarn including a core yarn with a plastic material coated thereon, and are manufactured through a process of warping, weaving, and tentering. The above-described coated yarns have been used as industrial fibers such as blinds for decades.
  • Further, the above-described coated yarns include a core portion formed of a yarn, and a sheath portion formed by coating a polymer resin on the yarn of the core portion. Here, a polyester material having properties of excellent elasticity, less wrinkle formation, shape retention, and high strength is mainly used for the yarn forming the core portion. In particular, polyethylene terephthalate (PET) resin having physical properties of high tensile strength and low shrinkage is widely used for the yarn forming the core portion. Further, in general, the yarn forming the core portion is transparent or has a white-based color.
  • Plastic materials such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and thermoplastic polyurethane (TPU) are used as the polymer resin forming the sheath portion. Products that implement a color of the coated yarn by imparting a color to the polymer resin are mainly used to implement the color of the coated yarn.
  • In addition, a technique that imparts functionality to the fabrics made of the coated yarn by including a functional material in the polymer resin forming the sheath portion is widely used.
  • In this regard, Korean Patent Registration No. 0594992 discloses imparting functionality such as flame retardancy and fire retardancy to a woven fabric manufactured by coating, on an outer shell formed of a glass fiber or a polyester fiber, a coating agent including a plasticizer and a flame retardant, and a polymer material such as PVC.
  • Further, Korean Patent Registration No. 1286628 discloses forming a coated yarn with functionality such as flame retardancy, by including a core layer made of a polyolefin-based resin and a coating layer having a flame retardant component and the polyolefin-based resin that is the same as or different from the core layer.
  • The above-described coated yarn and the fabrics manufactured using the coated yarn are widely used as blind fabrics due to the properties of their materials.
  • Although the blind fabrics are interior products for blocking sunlight, it may be necessary for the blind fabrics to appropriately control sunlight so as to remove a glare effect due to the amount of background lighting or sunlight, thereby making the occupant's eyes comfortable within a given indoor environment.
  • Except for blackout blind products that are intended to block sunlight, most blind products are manufactured using bright color fabrics suitable for indoor interiors. However, these bright color products have a problem of causing a glare effect indoors due to high transmittance of sunlight or illuminating light.
  • In order to address the above problem, Korean Patent Application Publication No. 2018-0001531 discloses a technique of depositing any one metal selected from aluminum, copper, nickel, and silver on one or both sides of a sunscreen blind fabric. However, the metal deposition technique mentioned above has problems in that it is a process performed after manufacturing the fabrics, and thus lowers production processability and price competitiveness of the fabrics, and due to the depositing of the metal, the color or design of the fabrics cannot be freely implemented.
    • DISCLOSURE OF INVENTION TECHNICAL PROBLEM
  • The present invention is to address the above-described problems in the art. The present invention is directed to providing a fabric comprising a coated yarn capable of controlling transmittance, in which a colored yarn is used as a yarn constituting the coated yarn so as to lower light transmittance such that there is no glare effect from a bright color fabric.
  • The present invention is further directed to providing a fabric comprising a coated yarn capable of controlling transmittance suitable for indoor blinds, in which it is possible to reduce both indoor cooling and heating energy loss due to an external environment and a glare effect due to a light source by increasing light reflectance and lowering transmittance by controlling an amount of inorganic material contained in a polymer resin for coating a core yarn of a coated yarn.
    • SOLUTION TO PROBLEM
  • In a fabric comprising a coated yarn capable of controlling transmittance according to an embodiment of the present invention, the coated yarn is composed of a core yarn and a coating layer for coating the core yarn, wherein the core yarn is a colored yarn having a color L value of 0 to 70, the coating layer is formed of a polymer resin containing an inorganic material, and the fabric has a color L value of 70 or higher, light reflectance (R) of 40 to 70%, and light absorption rate (A) of 25% or higher, and satisfies the following equations (1) and (2): 5 ≤ A / T
    Figure imgb0001
     0.9 ≤ R / A < 3
    Figure imgb0002
     wherein R refers to the light reflectance, T refers to a transmittance, and A refers to the light absorption rate.
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the fabric satisfies the following equation (3): 0.95 ≤ log x L < 5.5
    Figure imgb0003
     wherein x refers to an integral amount of inorganic material (phr) contained in the polymer resin, and L refers to an integer of the color L value of the core yarn.
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the core yarn is any one of multi-filament yarn, spun yarn, mono-filament yarn, or composite yarn
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the core yarn has a fineness of 50 to 1,000 denier, and the coated yarn has a fineness of 100 to 5,000 denier.
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the polymer resin forming the coating layer is any one of polyvinyl chloride (PVC) resin, polypropylene (PP) resin, polyethylene (PE) resin, polyethylene terephthalate glycol (PETG) resin, polyethylene terephthalate (PET) resin, ethylene vinyl acetate (EVA) resin, thermoplastic elastomer (TPE) resin, thermoplastic polyurethane (TPU) resin, or thermoplastic polyolefin (TPO) resin, or a mixture of two or more thereof.
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the inorganic material contained in the polymer resin is any one of antimony trioxide (Sb2O3), magnesium hydroxide (Mg(OH)2), titanium dioxide (TiO2), aluminum hydroxide (Al(OH)3), calcium carbonate, talc, zinc oxide (ZnO), graphite, carbon black, or silica (SiO2), or a mixture of two or more thereof.
  • In addition, in the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention, the inorganic material is contained in the polymer resin in an amount of 1 to 40 phr (parts per hundred resin).
    • ADVANTAGEOUS EFFECTS OF INVENTION
  • According to the embodiments of the present invention, since the fabric comprising the coated yarn capable of controlling transmittance can increase the light absorption rate and lower the transmittance by using the colored yarn as the core yarn and including inorganic materials in the coating layer, the glare effect from bright color fabrics can be removed.
  • In addition, according to the embodiments of the present invention, since the fabric comprising the coated yarn capable of controlling transmittance can reduce both indoor cooling and heating energy loss due to an external environment and the glare effect from a light source by increasing the light reflectance and lowering the transmittance, the fabric can be suitable for indoor blinds.
    • BEST MODE FOR CARRYING OUT THE INVENTION
  • Hereinafter, the preferred embodiments of the present invention will be described in detail. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the subject matter of the present invention.
  • Throughout this specification, terms of approximation such as "about", "substantially", and the like, are used to mean "at, or close to" given numerical values when manufacturing and material tolerances inherent in the stated meanings are given, and are used to prevent unscrupulous infringers from unfairly using the content referring to the exact or absolute numerical values mentioned to aid in the understanding of the present invention.
  • The present invention relates to a fabric comprising a coated yarn which is composed of a core yarn and a coating layer for coating the core yarn,
  • The core yarn constituting the coated yarn according to an embodiment of the present invention is formed of a colored yarn having a color L value of 0 to 70, and the coating layer is formed of a polymer resin containing an inorganic material.
  • Since the core yarn has the color L value of 0 to 70 and thus absorbs light, it may act to lower transmittance of the fabric manufactured with the coated yarn.
  • The core yarn accommodates any color having the color L value of 0 to 70, and may use any one of multi-filament yarn, spun yarn, mono-filament yarn, or composite yarn.
  • The core yarn does not have a limited fineness. However, when used for blinds, considering the weight of the fabric, it is preferable to use the core yarn having a fineness of 50 to 1,000 denier, and it is preferable for the coated yarn to have a fineness of 100 to 5,000 denier.
  • Any resin capable of coating the core yarn may be used as a polymer resin forming the coating layer for coating the core yarn, and for example, any one of polyvinyl chloride (PVC) resin, polypropylene (PP) resin, polyethylene (PE) resin, polyethylene terephthalate glycol (PETG) resin, polyethylene terephthalate (PET) resin, ethylene vinyl acetate (EVA) resin, thermoplastic elastomer (TPE) resin, thermoplastic polyurethane (TPU) resin, or thermoplastic polyolefin (TPO) resin, or a mixture of two or more thereof may be used as the polymer resin.
  • In order to supplement the properties and enhance the functionality of the polymer resin, it is preferable to use a mixture of two or more different types of polymer resins.
  • In addition, the polymer resin may additionally contain a plasticizer, a lubricant, and the like to enhance processability, and may additionally contain functional materials such as flame retardants, antibacterial agents, and UV stabilizers to enhance the functionality of the coated yarn.
  • Any inorganic material capable of reflecting or absorbing light may be used as the inorganic material contained in the polymer resin, and for example, any one of antimony trioxide (Sb2O3), magnesium hydroxide (Mg(OH)2), titanium dioxide (TiO2), aluminum hydroxide (Al(OH)3), calcium carbonate, talc, zinc oxide (ZnO), graphite, carbon black, or silica (SiO2), or a mixture of two or more thereof, may be used as the polymer resin.
  • As the amount of the inorganic material contained in the polymer resin increases, light reflectance also increases, thereby improving the color L value of the fabric. However, when too much inorganic material is contained in the polymer resin, texture and price competitiveness of the fabric may be lowered. Accordingly, it is preferable that the inorganic material is contained in the polymer resin in an amount of 1 to 40 phr (parts per hundred resin).
  • It is possible to increase the amount of the inorganic material contained in the polymer resin to improve the color L value of the fabric, but if the amount of the inorganic material exceeds 40 phr, the physical properties of the coated yarn may deteriorate. Accordingly, it is preferable that the inorganic material is contained in the polymer resin in an amount of 40 phr or less.
  • The fabric comprising the coated yarn composed of the core yarn which is a colored yarn having the color L value of 0 to 79 and the coating layer which is the polymer resin containing the inorganic material, as described above, has a color determined according to a pigment of the coating layer.
  • It is preferable that even if the fabric has a color with the color L value of 70 or higher, it has a reduced light transmittance due to a light reflectance (R) of 40 to 70% and a high light absorption rate (A) of 25% or higher, and satisfies the following equations (1) and (2): 5 ≤ A / T
    Figure imgb0004
     0.9 ≤ R / A < 3
    Figure imgb0005
     wherein R refers to the light reflectance, T refers to the transmittance, and A refers to the light absorption rate.
  • Equation (1) indicates that the transmittance (T) of the fabric according to the embodiment of the present invention is 5 times or more lower than the light absorption rate (A) thereof. Accordingly, when the light reflectance (R) is constant, it is possible to control the glare effect from the fabric due to the light source by controlling the light absorption rate (A) in inverse proportion to the transmittance (T).
  • Equation (2) indicates the relationship between the light reflectance and the light absorption rate, and the light reflectance of the fabric is a value representing sharpness or beauty of the fabric appearance.
  • Since when the light reflectance is too low, sharpness or beauty of the fabric appearance may be lowered, but when the light reflectance is too high, the glare effect from the fabric due to the light source may increase, it is preferable to keep the light reflectance within a certain range. That is, when the light reflectance (R) and the light absorption rate (A) satisfy 0.9<R/A<3, it is possible to prevent the glare effect without causing deterioration of the fabric appearance.
  • The light reflectance, the transmittance, and the light absorption rate of the fabric according to the embodiment of the present invention are physical property values that may be controlled according to the color L value of the core yarn and the amount of inorganic material (phr) contained in the polymer resin.
  • Although it is possible to increase the light absorption rate and lower the transmittance of the fabric through the color L value of the core yarn, the color L value of the fabric may be lowered. In addition, although it is possible to lower the transmittance by increasing the light reflectance and the light absorption rate by increasing the amount of the inorganic material contained in the polymer resin, the texture and price competitiveness of the fabric may be lowered due to the increased amount of inorganic material contained the polymer resin. Accordingly, since it is possible to control the color L value, the light reflectance, and the transmittance of the manufactured fabric by controlling the color L value of the core yarn and the amount of inorganic material contained in the polymer resin, it is preferable that the following equation (3) is satisfied in the present invention: 0.95 ≤ log x L < 5.5
    Figure imgb0006
     wherein x refers to an integral amount of inorganic material (phr) contained in the polymer resin, and L refers to an integer of the color L value of the core yarn.
  • Equation (3) is a log value based on the color L value of the core yarn and the amount of inorganic material contained in the polymer resin. Here, when the log value is less than 0.95, this indicates that an excess of the inorganic material is contained in the polymer resin in consideration of the light reflectance and the transmittance. However, when the log value is greater than 5.5, since too little inorganic material is contained in the polymer resin to control the transmittance, the glare effect may occur.
  • According to the embodiment of the present invention, by controlling the color L value of the core yarn and the amount of inorganic material contained in the polymer resin within the range of Equation (3), occurrence of the glare effect from the bright color fabrics can be lowered and thus the user's comfort can be improved.
  • In addition, according to the embodiment of the present invention, by controlling the light reflectance and the transmittance, the glare effect caused by the light source can be lowered, and thus the bright color fabrics can be suitable for indoor blinds.
  • Hereinafter, a method for manufacturing the fabric comprising the coated yarn capable of controlling transmittance according to an embodiment of the present invention is described, but it should not be understood that the present invention is limited to the embodiment.
  • ⊚ Measurement of the transmittance based on the inorganic material
  • 50 parts by weight of polyvinyl chloride (PVC) resin, 20 parts by weight of ethylene vinyl acetate (EVA) resin, 27 parts by weight of plasticizer (DOTP), 0.5 parts by weight of lubricant (zinc stearic acid), 0.5 parts by weight of antibacterial agent (BAC-300Z), and 2 parts by weight of an ultraviolet stabilizer (benzophenone-based) were mixed to provide a mixture of resins for forming the coating layer, and then 0 to 20 phr of zinc oxide (ZnO) and titanium dioxide (TiO2) were included in the mixture of resins to manufacture a film with a thickness of 1 mm. The measurement of the transmittance of the film is shown in Table 1 below. [Table 1]
    Amount of inorganic material (phr) Transmittance of zinc oxide (%) Transmittance of titanium dioxide (%)
    0 15 15
    1 7 6
    2 5 5
    3 3.5 3
    5 1.7 1.5
    10 0.6 0.5
    15 0.1 0.1
    20 0.1 0.1
  • As can be seen in Table 1, since the transmittance of both zinc oxide (ZnO) and titanium dioxide (TiO2) is lowered as the amount of inorganic material contained in the polymer resin increases, it is possible to control the transmittance of the film by controlling the amount of inorganic material.
  • ⊚ Manufacture of the fabric comprising the coated yarn capable of controlling transmittance
    • Embodiments 1 to 17
  • 250D/48F, polyester dope dyed yarn was used as the core yarn. Further, 50 parts by weight of polyvinyl chloride (PVC) resin, 20 parts by weight of ethylene vinyl acetate (EVA) resin, 27 parts by weight of plasticizer (DOTP), 0.5 parts by weight of lubricant (zinc stearic acid), 0.5 parts by weight of antibacterial agent (BAC-300Z), and 2 parts by weight of an ultraviolet stabilizer (benzophenone-based) were mixed to provide a mixture of resins, and the mixture of resins was used as the polymer resin of the coating layer. Further, titanium dioxide was included as the inorganic material in the mixture of resins.
  • Coated yarn of about 1,000D was manufactured by coating the mixture of resins on the core yarn at a coating speed of 500 to 1000 m/min at 150 to 180 °C using a single extrusion coating machine. During the coating process, in a state where the yarn was fixed to a winder after being passed through a nozzle, the yarn was yarn-coated by injecting the coating material composition into a hopper of an extruder and melt-extruding the yarn through the extruder.
  • The fabric comprising the coated yarn capable of controlling transmittance according to the embodiment of the present invention was manufactured using the coated yarn manufactured through the above-described process.
  • Table 2 shows control of the color L value of the core yarn and the amount of inorganic material contained in the polymer resin according to Embodiments 1 to 17.
    • Comparative Examples 1 to 4
  • As shown in Table 2, the fabrics according to Comparative Examples 1 to 4 were manufactured in the same manner as in Embodiment 1, except that the core yarn having a color L value of 90 was used and the amount of inorganic material contained in the polymer resin was controlled.

    Figure imgb0007
    Optical properties in Embodiments and Comparative Examples
  • Measurement of the color L value, the light reflectance, the transmittance, the light absorption rate, and the glare class of the fabric manufactured according to Embodiments 1 to 17 and the Comparative Examples 1 to 4 are shown in Table 2, respectively.
  • The color L value of the core yarn, and the color L value, the light reflectance, the transmittance and the light absorption rate of the fabric were measured using a Konica Minolta CM-5 spectrophotometer and a PerkinElmer Lambda UV/VIS/NIR spectrophotometer, and the glare class of the fabric was measured using a test method according to European EN 14501. The log value was calculated according to the following equation: Log value = log x L
    Figure imgb0008
     wherein x refers to an integral amount of inorganic material (phr) contained in the polymer resin, and L refers to an integer of the color L value of the core yarn. [Table 2]
    Embodiment Core yarn L value Amount of inorganic material (phr) Fabric L value Light reflectance (%) Transmittance (%) Light absorption rate (%) Glare class Log value
    Embodiment 1 18 2 77 38 3 59 3 4.17
    Embodiment 2 18 5 82 53 4 43 3 1.8
    Embodiment 3 18 10 84 58 5 37 3 1.26
    Embodiment 4 18 15 89 62 3 36 3 1.07
    Embodiment 5 18 20 90 64 3 33 3 0.96
    Embodiment 6 18 25 91 63 3 34 3 0.90
    Embodiment 7 32 2 76 40 4 56 3 5
    Embodiment 8 32 5 83 54 6 40 3 2.15
    Embodiment 9 32 10 90 55 4 41 3 1.51
    Embodiment 10 32 15 91 62 4 35 3 1.28
    Embodiment 11 32 25 93 65 3 32 3 1.08
    Embodiment 12 32 35 93 67 3 31 3 0.97
    Embodiment 13 32 45 93 67 3 31 3 0.91
    Embodiment 14 68 2 83 45 8 47 2 6.09
    Embodiment 15 68 5 85 55 5 40 3 2.62
    Embodiment 16 68 10 89 57 5 38 2 1.83
    Embodiment 17 68 15 90 62 4 35 3 1.56
    Comparative Example 1 90 2 92 63 26 11 1 6.49
    Comparative Example 2 90 5 93 54 18 28 1 2.8
    Comparative Example 3 90 10 93 65 15 20 1 1.95
    Comparative Example 4 90 15 93 65 10 25 1 1.66
  • As can be seen in Table 2, when the color L value of the core yarn is 68 or less, a light reflectance (R) of 40 to 70%, a light absorption rate (A) of 25% or higher, and a 3-class glare can be achieved by controlling the amount of inorganic material contained in the polymer resin. That is, as can be seen in Embodiments 1 to 5, 6 to 13, and 14 to 17, respectively, when the color L value of the core yarn is the same, as the amount of inorganic material contained in the polymer resin increases, the color L value and the light reflectance of the fabric also increase.
  • In addition, as can be seen in Comparative examples 1 to 4, when the color L value of the core yarn is 90, even if the amount of inorganic material contained in the polymer resin is increased, it is preferable that the transmittance is 10% or higher, the glare class is 1, and the color L value of the core yarn is 70 or less.
  • Embodiment 6, which has a log value of less than 0.95, does not have a significant difference in the color L value of the fabric, the light reflectance, the transmittance, and the glare class compared to Embodiments 4 and 5, which used the same core yarn. Therefore, it can be seen that in Embodiment 6, an excessive amount of inorganic material was contained in the polymer resin in consideration of the color L value of the fabric, the light reflectance, the transmittance, and the glare class.
  • Likewise, it can be seen that in Embodiment 13, which has a log value of less than 0.95, an excessive amount of inorganic material was contained in the polymer resin in consideration of the color L value of the fabric, the light reflectance, the transmittance, and the glare class, when compared to Embodiments 10 and 11.
  • Further, in Embodiment 14, which has a log value of more than 5.5, the amount of inorganic material contained in the polymer resin is low compared to the color L value of the core yarn, so the transmittance is high and the glare class is 2, and thus the glare effect occurs.
  • Accordingly, it can be seen that when the log value is in the range of 0.95 to 5.5, the amount of inorganic material contained in the polymer resin is controlled while maintaining a satisfactory light reflectance, transmittance, and glare class.

Claims (7)

  1. A fabric comprising a coated yarn capable of controlling transmittance, the coated yarn being composed of a core yarn and a coating layer for coating the core yarn, characterized in that:
    the core yarn is a colored yarn having a color L value of 0 to 70, and the coating layer is formed of a polymer resin containing an inorganic material, and
    the fabric has a color L value of 70 or higher, a light reflectance (R) of 40 to 70%, and a light absorption rate (A) of 25% or higher, and satisfies the following equations (1) and (2): 5 ≤ A / T
    Figure imgb0009
     0.9 ≤ R / A < 3
    Figure imgb0010
     wherein R refers to the light reflectance, T refers to a transmittance, and A refers to the light absorption rate.
  2. The fabric according to claim 1, characterized in that the fabric comprising the coated yarn satisfies the following equation (3): 0.95 ≤ log x L < 5.5
    Figure imgb0011
     wherein x refers to an integral amount of inorganic material (phr) contained in the polymer resin, and L refers to an integer of the color L value of the core yarn.
  3. The fabric according to claim 1, characterized in that the core yarn is any one of multi-filament yarn, spun yarn, mono-filament yarn, or composite yarn.
  4. The fabric according to claim 1, characterized in that the core yarn has a fineness of 50 to 1,000 denier, and the coated yarn has a fineness of 100 to 5,000 denier.
  5. The fabric according to claim 1, characterized in that the polymer resin forming the coating layer is any one of polyvinyl chloride (PVC) resin, polypropylene (PP) resin, polyethylene (PE) resin, polyethylene terephthalate glycol (PETG) resin, polyethylene terephthalate (PET) resin, ethylene vinyl acetate (EVA) resin, thermoplastic elastomer (TPE) resin, thermoplastic polyurethane (TPU) resin, or thermoplastic polyolefin (TPO) resin, or a mixture of two or more thereof.
  6. The fabric according to claim 1, characterized in that the inorganic material contained in the polymer resin is any one of antimony trioxide (Sb2O3), magnesium hydroxide (Mg(OH)2), titanium dioxide (TiO2), aluminum hydroxide (Al(OH)3), calcium carbonate, talc, zinc oxide (ZnO), graphite, carbon black, or silica (SiO2), or a mixture of two or more thereof.
  7. The fabric according to claim 1, characterized in that the inorganic material is contained in the polymer resin in an amount of 1 to 40 phr (parts per hundred resin).
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KR101635001B1 (en) * 2014-04-10 2016-07-01 주식회사 헌터더글라스코리아 Superior See-Through and Energy Saving Sunscreen Fabrics with Coated Yarn Containing Organic/Inorganic Hybrid Coating Layer and The Preparation Method Thereof
KR101699131B1 (en) * 2014-11-26 2017-02-01 (주) 정산인터내셔널 Silicone coating yarn, manufacturing method thereof, woven fabrics therefrom and coating composition used therefor
KR101633058B1 (en) * 2015-11-24 2016-06-24 한국신소재(유) A composition for coating fiber and a fabric using the same
KR20180045467A (en) * 2016-10-26 2018-05-04 (주)아셈스 Hotmelt coating yarn with dyed fiber yarn and material using the same
KR20180001531A (en) 2017-12-14 2018-01-04 박종규 How to manufacture sunscreen fabrics for roll blinds with improved light blocking effect with visible silhouette

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