EP3382073A1 - Bande textile pour élément de protection solaire - Google Patents

Bande textile pour élément de protection solaire Download PDF

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Publication number
EP3382073A1
EP3382073A1 EP17382707.2A EP17382707A EP3382073A1 EP 3382073 A1 EP3382073 A1 EP 3382073A1 EP 17382707 A EP17382707 A EP 17382707A EP 3382073 A1 EP3382073 A1 EP 3382073A1
Authority
EP
European Patent Office
Prior art keywords
core
threads
fibres
strip
strip according
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Withdrawn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
EP17382707.2A
Other languages
German (de)
English (en)
Inventor
Marc VILA BROS
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.)
Citel SL
Original Assignee
Citel SL
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 Citel SL filed Critical Citel SL
Publication of EP3382073A1 publication Critical patent/EP3382073A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/007—UV radiation protecting
    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • 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
    • 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
    • D03D15/56—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 elastic
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building

Definitions

  • the present invention falls within the textiles sector, specifically the technical textiles sector.
  • the term "textile element” or “textile band” is used to refer to woven fabrics, that is, obtained by perpendicularly crossing threads which extend in a longitudinal direction (warp) and threads which extend in a transverse direction (weft).
  • Said textile elements are usually produced in rectangular pieces or strips, the dimensions of which are given by the width, length and thickness thereof. The width of the strips is constrained by the physical limitations of the loom, which is why the length of the textile element is usually considerably greater than the width.
  • protection element or “covering element” is used to refer to textiles elements of which the purpose is to protect objects and/or areas from atmospheric agents such as rain, dust, solar radiation, etc. Said protection elements are commonly referred to as canvases or awnings, among others.
  • one or more folds of the longitudinal ends of the textile element are carried out; said folds, commonly known as hems, are intended to prevent the element from fraying. Producing folds of this kind in the textile element during the manufacture of protection elements results in regions having a greater thickness, that is, the regions of the protection element which are folded have a greater thickness than non-folded regions.
  • the textile elements are usually produced having width dimensions that are constrained by the physical limitations of the manufacturing process. For this reason, during the manufacture of covering elements that can cover areas that are larger than the width of the textile element, the various elements or textile strips must be joined together. Said joining is achieved by partially overlapping the longitudinal ends of two contiguous textile strips and then attaching said strips by permanent attachment means such as stitching or welding, among others. As a result of overlapping the two textile elements, regions having a greater thickness are produced in the protection element, that is, the regions of the protection element in which two or more textile strips overlap have a greater thickness than that of regions in which strips do not overlap.
  • the protection elements of the present invention are usually rolled up and unrolled.
  • the protection element can be unrolled for protection against rain or solar radiation, and can be rolled up in high winds in order to protect it from excessive stress, which could lead to it breaking or to the structure holding it to break.
  • the protection elements as a result of the manufacturing process thereof, have regions of differing thickness. Owing to this difference in thickness of the protection element, when said protection element is in the rolled-up position, the regions thereof having a greater thickness provide a diameter that is significantly larger than that of the regions of the element having a lesser thickness. For this reason, the threads of the regions of lesser thickness are subjected to a constant tensile force when the protection element is in the rolled-up position.
  • Said tensile force causes permanent deformations in the protection element, for example creases and/or pockets that are visible when the protection element is in the unrolled position. This effect is produced after a very short period of time of using the protection element, has a negative impact on the appearance of the protection element and may accelerate the deterioration of same.
  • document ES2361564A1 discloses a self-tensioning textile protection element formed of strips of fabric composed of threads having resilient properties.
  • the textile element disclosed in said document does not prevent the emergence of permanent deformations in an entirely satisfactory manner throughout the entire period in which the protection element is used.
  • the term "threads of the core-spun type" or "core-spun threads” is used to refer to threads which comprise a core and a sheath.
  • the core of the core-spun threads is formed of one or a plurality of threads.
  • the sheath is formed of fibres that cover the core of the core-spun threads.
  • the core and sheath of the core-spun threads may be made of the same or different materials.
  • the filaments that make up the core and/or sheath of the core-spun threads may be resilient, rigid, semi-rigid, among others.
  • the present invention discloses a textile strip for protection or covering elements consisting of a woven fabric, produced by perpendicularly crossing threads which extend in the longitudinal or warp direction and threads which extend in the transverse or weft direction, and comprises core-spun threads comprising a core of elastomeric fibres having viscoelastic properties.
  • the present invention is based on the use of textile strips formed of threads comprising elastomeric fibres.
  • Said elastomeric fibres are characterised in that they have viscoelastic properties. Unlike materials having purely resilient properties, materials having viscoelastic properties provide time-dependent deformation. The viscoelasticity results from molecular reorganisation of the material, specifically from the reorganisation of polymer chains that make up the elastomer in a phenomenon known as "creep".
  • creep When a viscoelastic material is subjected to stress, creep occurs and the material creeps until it adapts to the new state of equilibrium. When the initial stress exerted on the material ceases, the material returns to its original shape.
  • Said viscoelastic properties inherent to the elastomeric fibres of the present invention are the reason for the improved ability of the textile element of the present invention to prevent the emergence of creases and/or permanent deformations.
  • said textile strip comprises core-spun threads comprising crimped elastomeric fibres having viscoelastic properties.
  • said core-spun threads comprise a sheath of acrylic fibres.
  • said acrylic fibres are acrylic staple fibres.
  • said acrylic fibres are wet-spun.
  • said acrylic fibres are dope-dyed.
  • the core-spun threads have a yarn count in metric count (Nm) of between 10 and 25.
  • said textile strip is characterised in that the material of the core-spun threads is such that the elastic recovery of the textile strip is greater than 99%.
  • said textile strip is characterised in that said elastomeric fibres are made of an elastomer that is highly resistant to UV rays.
  • said textile strip is characterised in that the weft is formed of said core-spun threads having a core comprising said elastomeric fibres.
  • said textile strip is comprised in a protection or covering element and comprises a region of overlapping fabric which is attached by permanent attachment means such as stitching, welding, staples or adhesive, among others.
  • said overlap region joins said strip to another textile strip.
  • said threads having a core of elastomeric fibres are arranged perpendicularly to the region of overlapping fabric.
  • the textile element of the present invention can be used as an awning.
  • Said awning is formed by joining the textile strips -1-, -2-, etc.
  • the awning is to be stowed, it is rolled up around the cylinder -3- by the rotary action of said cylinder.
  • the textile strips -1- and -2- are joined by partially overlapping the respective longitudinal ends -4- and -5- thereof, creating an overlap region -6- which extends in parallel with the central longitudinal axis -7-.
  • permanent attachment means such as stitching or welding, among others, are used. Because the protection element is thicker in the region -6-, when said element is rolled up, stresses are produced which lead to the appearance of creases -8-, -9-, which are visible in the unrolled position of the protection element.
  • the core-spun threads which make up the textile element comprise a core -10- and a sheath -11-.
  • the core -10- comprises a plurality of elastomeric fibres
  • the sheath -11- which covers the core, comprises a plurality of acrylic fibres.
  • the graph shows the stretch under a constant load and the elastic recovery of a textile strip composed of core-spun threads having a core of elastomeric fibres.
  • an extension force is exerted on the textile strip such that instantaneous initial stretching of said strip is produced.
  • the strip is stretched under a constant load, said stretching under a constant load increasing until it reaches a constant value at the time point -13-.
  • the extension force ceases to be exerted on the textile strip, such that from the time point -13-, the elastic recovery of the strip begins.
  • the stretch decreases with time until maximum elastic recovery -14-, of more than 99%, is reached.
EP17382707.2A 2017-03-30 2017-10-24 Bande textile pour élément de protection solaire Withdrawn EP3382073A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201700235 2017-03-30

Publications (1)

Publication Number Publication Date
EP3382073A1 true EP3382073A1 (fr) 2018-10-03

Family

ID=60302052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17382707.2A Withdrawn EP3382073A1 (fr) 2017-03-30 2017-10-24 Bande textile pour élément de protection solaire

Country Status (2)

Country Link
US (1) US20180282911A1 (fr)
EP (1) EP3382073A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06123072A (ja) * 1992-10-09 1994-05-06 Unitika Ltd 耐光性高伸縮布帛の製造方法
JP2003013334A (ja) * 2001-06-29 2003-01-15 Toyobo Co Ltd 伸縮性紡績糸、織編物およびその製造方法
ES2361564A1 (es) 2011-05-13 2011-06-20 Citel, S.L. Elemento laminar de recubrimiento con capacidad autotensante.
US20160362819A1 (en) * 2013-01-16 2016-12-15 Invista North America S.A.R.L. Stretch yarns and fabrics with multiple elastic yarns

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06123072A (ja) * 1992-10-09 1994-05-06 Unitika Ltd 耐光性高伸縮布帛の製造方法
JP2003013334A (ja) * 2001-06-29 2003-01-15 Toyobo Co Ltd 伸縮性紡績糸、織編物およびその製造方法
ES2361564A1 (es) 2011-05-13 2011-06-20 Citel, S.L. Elemento laminar de recubrimiento con capacidad autotensante.
US20160362819A1 (en) * 2013-01-16 2016-12-15 Invista North America S.A.R.L. Stretch yarns and fabrics with multiple elastic yarns

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KALLE HANHI ET AL: "ELASTOMERIC MATERIALS TAMPERE UNIVERSITY OF TECHNOLOGY THE LABORATORY OF PLASTICS AND ELASTOMER TECHNOLOGY", 31 December 2007 (2007-12-31), Tampere University of Technology, pages 1 - 84, XP055451420, Retrieved from the Internet <URL:http://laroverket.com/wp-content/uploads/2015/03/Elastomeric_materials.pdf> [retrieved on 20180215] *

Also Published As

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