EP2363518A1 - Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung - Google Patents

Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung Download PDF

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Publication number
EP2363518A1
EP2363518A1 EP10425054A EP10425054A EP2363518A1 EP 2363518 A1 EP2363518 A1 EP 2363518A1 EP 10425054 A EP10425054 A EP 10425054A EP 10425054 A EP10425054 A EP 10425054A EP 2363518 A1 EP2363518 A1 EP 2363518A1
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EP
European Patent Office
Prior art keywords
fabric
fibres
filament
weft
warp
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Withdrawn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
EP10425054A
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English (en)
French (fr)
Inventor
Gianfranco Cipriani
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.)
Allergosystem Srl
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Allergosystem Srl
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 Allergosystem Srl filed Critical Allergosystem Srl
Priority to EP10425054A priority Critical patent/EP2363518A1/de
Publication of EP2363518A1 publication Critical patent/EP2363518A1/de
Withdrawn legal-status Critical Current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
    • D03D15/30—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 fibres or filaments
    • D03D15/33—Ultrafine fibres, e.g. microfibres or nanofibres
    • 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
    • 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
    • D03D15/20—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 material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—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 material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • 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
    • D03D15/49—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 textured; curled; crimped
    • 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
    • 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
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/13—Physical properties anti-allergenic or anti-bacterial
    • 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
    • D10B2503/06—Bed linen

Definitions

  • the present invention concerns a fabric for protection against allergies, the use thereof and a method for its production. More specifically, the invention concerns a fabric for protection against allergies due to mites, dust, mould and similar.
  • textile products are produced by means of two different processes and they have different characteristics; a first type is formed of fabrics (i.e. fabrics with weft and warp) coated with Dicrylan and Teflon on at least one side to prevent the passage of the mites and their excrement. Said products have the drawback of not being very permeable to air and water vapour and therefore causing perspiration during use of the mattresses or pillows.
  • Textile products based on non-woven fabrics obtained by spunbonding or spunlacing, from extrusion of thermoplastic filaments which are then drawn in a current of air and deposited on a movable support to form a non-woven fabric are also known. The filaments thus obtained are then bonded, preferably by jets of water at high pressure (jetbonding). In the preferred embodiment filaments are used (more precisely monofilaments) in polypropylene 100%.
  • a textile product of this type is known and is sold for use as a mattress cover or pillow cover for human use.
  • said non-woven fabric is produced by Texbond SpA and marketed under the name Softbond ® or Ultrabond ®.
  • polyester and polyamide are used in a ratio 70/30 or 50/50.
  • EP 1251759 describes the anti-allergy use of said non-woven microfibre fabrics where the initial filament is split for at least 80% into microfibres with dimensions between 0.1 and 0.8 dtex.
  • the main drawback of this product is that, despite its filtering capacity, the surface retains large quantities of dirt and allergens.
  • Both coated fabrics and non-woven fabrics can be used only as mattress covers and pillow covers and are too unpleasant to the touch to be used as sheets, pillowcases or duvet covers. Furthermore, the characteristics of non-woven fabrics as an anti-allergy barrier diminish in the long term with washing and are ultimately lost or drastically reduced.
  • a new textile product is therefore necessary to combat allergies, in particular caused by mites, which is free from the problems mentioned above.
  • the object of the present invention is to solve the problems discussed above and provide a textile product with anti-allergic characteristics, i.e. able to act as an effective anti-allergy barrier, in particular as regards allergies caused by mites and dust, said product also being pleasant to the touch, inexpensive and reliable.
  • the fabric has a gram weight of between 40 and 90 g/m 2 and preferably between 50 and 70 g/m 2 .
  • the thickness of the fabric is less than 300 ⁇ m, preferably less than 200 ⁇ m and more preferably around 100 ⁇ m.
  • the first yarn comprises 5 to 12 fibres per filament and forms the weft of the fabric; preferably said filament is of the "star" type.
  • a “star” filament is a filament which is formed of a polyamide matrix and a plurality of single fibres, so-called “sub-filaments", generally in polyester or PET, immersed in the matrix.
  • the number of sub-filaments (or fibres) is generally between 6 and 10 and in each single thread there are from 36 to 80 sheaths for a total number of fibres which varies from 216 to 640.
  • the count of the fibres is below 1.0 den/fibre, preferably below 0.4 and more preferably below 0.3 den/fibre.
  • Yarns of this type can be obtained from the company HYOSUNG (Korea) and are identified as Nylon/PET conjugated yarns, for example under the initials XF in http://www.mipan.com/eng/customer support/pdf/nylon catalogue.pdf .
  • "Star-type" or conjugated N/P yarns can also be obtained from the company Noyfil SpA (Sondrio, Italy) under the commercial name Micralon.
  • the first yarn can also be formed of the type obtained from textured microfibre, for example PES, with a denier per fibre not higher than 1.0, preferably no higher than 0.6 and even more preferably no higher than 0.4.
  • den/fibre Yarns of this type are sold for example by the company Noyfil.
  • the second yarn is a multifilament thread, preferably in PES, preferably with a count between 45 and 80 dtex and with bright trilobal section.
  • the number of sub-filaments (or fibres) is at least 36 with a fineness of each single fibre of no higher than 1.3 den/fibre (1.4 dtex/fibre).
  • Yarns of this type are commercially available and can be obtained for example from the company Noyfil (Andalo Valtellino, Sondrio, Italia) under the name Micrell.
  • the first yarn forms the weft of the fabric and the second yarn forms the warp.
  • the filaments of the first yarn are in expanded form, i.e. the single fibres present in the initial filament are grouped together but not cohered. If the fibres are initially cohered and joined to one another, they must be singularised, i.e. separated from one another to increase the volume of the yarn and close the spaces initially present in the fabric.
  • the warp yarns are formed of the multi-fibres filaments (i.e. the second yarn) and the weft yarns are formed of the micro-fibres filaments (i.e. with the first yarn).
  • the invention furthermore concerns a process for the production of a fabric as defined above, characterised as claimed in claim 9.
  • Said process is characterised by the fact that it comprises the following phases: prepare a fabric with weft and warp in which at least part of said weft or said warp is produced with a first yarn comprising filaments formed of a plurality of fibres having a count below 1.0 den/fibre preferably below 0.5 den/fibre and more preferably below 0.3 den/fibre, the sum of said fibres providing a yarn having a count between 45 and 170 dtex and in which said warp or weft is produced with a second yarn comprising yarns having a count between 45 and 80 dtex; if necessary, expand the fibres present in said first filament to reduce the spaces between weft and warp; perform any finishing operations.
  • the yarn is a star-type yarn comprising a polyamide matrix containing a plurality of fibres in PES or PET with a count below 0.4 den and the expansion phase of said fibres is obtained by treatment of the fabric in a basic solution.
  • the yarn comprises a plurality of fibres with a count below 0.4 den/fibre coextruded together and the expansion phase is performed by thermal/mechanical action on said yarn to separate said fibres.
  • the filament comprises a plurality of fibres with a count below 0.4 denier/fibre in polyester and in polyamide coextruded together and the expansion phase is performed by mechanical action on said filament to separate said fibres.
  • the fabric according to the invention has numerous advantages with respect to the known fabrics. Firstly it is able to function as an anti-allergen barrier, in particular against mites and their allergens. Secondly it is much cheaper to produce; furthermore, the fabric of the invention has a much better feel and appearance than those of the known textile products and can therefore be used to produce objects intended for direct contact with the user.
  • a further advantage is given by the fact that the anti-allergen properties of the fabric according to the invention endure in the long term, also after the fabric has been washed many times, unlike the coated fabrics and non-woven fabrics known in the art.
  • the fabric 1 comprises a first and a second plurality of yarns, 2 and 3, woven in a weft and warp configuration; at least part of said weft or said warp is produced with a first yarn, 2, which is of the type that comprises a multiplicity of filaments in turn formed of a plurality of fibres having a count below 1.0 den/fibre, preferably below 0.4 den/fibre, the sum of said filaments providing a yarn having dtex between 45 and 170.
  • the remaining part of the fabric i.e. the warp (if the yarn 2 is used for the weft) or the weft (if the yarn 2 is used for the warp) is produced with a yarn 3 having a count between 45 and 80 dtex; the yarn is multi-fibres with fineness of 1.2 den/fibre.
  • Suitable fibres are, for example, those mentioned above and produced and marketed by the companies Hyosung (Ulsan, Korea) and Noyfil (Andalo Valtellino, Sondrio, Italy).
  • the fibres cohere with one another temporarily and can be processed as if they formed one single element or fibre. Said fibres can be separated by partial breakage or dissolution of the filament 2 to give an expansion of the filament which is transformed into a bundle of fibres, or microfibres, and increases its volume so as to close or substantially reduce the spaces initially present between weft and warp.
  • multi-fibres threads indicates yarns which have a count between 40 and 80 dtex, preferably between 50 and 60 dtex; preferably the fibre is made of smooth polyester, non-loaded and more preferably trilobal to give the end fabric a silky appearance and feel.
  • the number of fibres is at least 36 per yarn with a fineness of each single fibre no higher than 1.3 den/fibre (1.4 dtex/fibre).
  • the multi-filament threads are used for the warp and the multifibre filaments are used for the weft.
  • the weave is of the plain type, the number of threads per cm is between 55 and 90 and the number of weft threads per cm between 32 and 46.
  • the gram weight of the fabric is in the range between 40 and 90 g/m 2 , preferably between 50 and 80 g/m 2 and more preferably between 60 and 70 g/m 2 - A preferred gram weight is 60 g/m 2 .
  • the weft yarn has a count between 50 and 160 den with 36 to 80 sheaths for a total number of fibres which varies from 216 to 640 and a count not higher than 0.3 den/fibre; the warp yarn has a count between 50 and 60 dtex with number of fibres no less than 36 and with a fineness of each single fibre no higher than 1.3 den/fibre.
  • the weft yarn is made of PES textured microfibre , with a den/fibre not higher than 0.4.
  • the photograph of fig. 1 also shows a thread 4, of dark colour, which follows a weft yarn; the thread 4 has the function of strengthening the structure and preventing any breakages of the fabric.
  • Threads suitable for said purpose have a count of approximately 120-160 dtex, preferably around 140 dtex, and are preferably used also in the warp to obtain a square effect. The dimensions of the square range from 4 to 8 cm per side.
  • silver threads with bactericidal function and/or carbon threads which function as a barrier to electromagnetic waves.
  • the process for production of the fabric according to the invention entails initial preparation of the fabric in the manner known in the art.
  • the weave is of the plain type.
  • the dissolution of the sheath and release from the same of the fibres/microfibres contained in it is performed in conditions very different from the known conditions: a solution of NaOH from 4 to 30 degrees Baumé is used at a temperature between 60 and 140°C for a treatment time between 30 and 60 minutes.
  • Preferential ranges are solutions with density from 10 to 30 degrees Baumé and bath temperature between 105 and 125 degrees C.
  • the bath described above is followed by thorough washing with detergents and drying, preferably of the free type.
  • the dry fabric then undergoes a heat-setting treatment in a hot-air tentering (Rameuse) machine.
  • Hot calendering is then performed on the fabric at a temperature between 160 and 190°C, preferably approximately 180° with a pressure between 50 and 70 tons, preferably 60 tons, and at a speed of between 6 and 20 metres per minute.
  • the fabric thus obtained has anti-mite barrier properties.
  • the permeability to the air is between 200 and 300 l/min/m 2 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Woven Fabrics (AREA)
EP10425054A 2010-03-03 2010-03-03 Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung Withdrawn EP2363518A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10425054A EP2363518A1 (de) 2010-03-03 2010-03-03 Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10425054A EP2363518A1 (de) 2010-03-03 2010-03-03 Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung

Publications (1)

Publication Number Publication Date
EP2363518A1 true EP2363518A1 (de) 2011-09-07

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EP10425054A Withdrawn EP2363518A1 (de) 2010-03-03 2010-03-03 Allergieprotektivegewebe, Verfahren zur Herstellung sowie die Verwendung

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116219733A (zh) * 2023-03-22 2023-06-06 上海水星家用纺织品股份有限公司 基于溶胀的物理阻螨面料的制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036735A1 (en) * 1999-11-13 2001-05-25 Milliken & Company Allergen barrier fabrics
EP1251759A1 (de) 1999-12-23 2002-10-30 Carl Freudenberg KG Schlafwäsche
JP2003213541A (ja) * 2002-01-16 2003-07-30 Toray Ind Inc 花粉付着防止織物および花粉付着防止織物製品
US6815382B1 (en) 1999-07-26 2004-11-09 Carl Freudenberg Kg Bonded-fiber fabric for producing clean-room protective clothing
WO2008072278A2 (en) 2006-12-15 2008-06-19 Fare' S.P.A. Process and apparatus for the production of nonwoven fabrics from extruded filaments
EP2174562A1 (de) * 2007-07-19 2010-04-14 Teijin Fibers Limited Unterwäsche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6815382B1 (en) 1999-07-26 2004-11-09 Carl Freudenberg Kg Bonded-fiber fabric for producing clean-room protective clothing
WO2001036735A1 (en) * 1999-11-13 2001-05-25 Milliken & Company Allergen barrier fabrics
EP1251759A1 (de) 1999-12-23 2002-10-30 Carl Freudenberg KG Schlafwäsche
JP2003213541A (ja) * 2002-01-16 2003-07-30 Toray Ind Inc 花粉付着防止織物および花粉付着防止織物製品
WO2008072278A2 (en) 2006-12-15 2008-06-19 Fare' S.P.A. Process and apparatus for the production of nonwoven fabrics from extruded filaments
EP2174562A1 (de) * 2007-07-19 2010-04-14 Teijin Fibers Limited Unterwäsche

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116219733A (zh) * 2023-03-22 2023-06-06 上海水星家用纺织品股份有限公司 基于溶胀的物理阻螨面料的制备方法

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