WO2023118181A1 - Matériau de renforcement pour textiles - Google Patents

Matériau de renforcement pour textiles Download PDF

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Publication number
WO2023118181A1
WO2023118181A1 PCT/EP2022/087050 EP2022087050W WO2023118181A1 WO 2023118181 A1 WO2023118181 A1 WO 2023118181A1 EP 2022087050 W EP2022087050 W EP 2022087050W WO 2023118181 A1 WO2023118181 A1 WO 2023118181A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcement material
material according
based polymers
hot
melt adhesive
Prior art date
Application number
PCT/EP2022/087050
Other languages
German (de)
English (en)
Inventor
Gunter Scharfenberger
Kim GARTH
Original Assignee
Rhenoflex Gmbh
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 Rhenoflex Gmbh filed Critical Rhenoflex Gmbh
Publication of WO2023118181A1 publication Critical patent/WO2023118181A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D04H1/565—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres by melt-blowing
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4358—Polyurethanes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used

Definitions

  • the present invention relates to a reinforcing material for textiles, which consists of a carrier fleece made of melt-spun polymer fibers and a hot-melt adhesive applied thereto, and its use.
  • Textiles in their various forms are among the oldest artefacts that have been produced since the dawn of civilization and are still used today in all areas of life, with clothing being the most well-known area of application.
  • they can be combined with a range of auxiliary and reinforcing materials.
  • thermoplastic stiffening material in the form of a hot-melt adhesive/filler compound which consists of one or more hot-melt adhesives in an amount of 50 to 95% by weight and has an MVR value of 2 to 300, and one or more fillers in amounts of 50 to 5% by weight which do not dissolve in the hot melt adhesive.
  • WO 2005/110719 describes a method of forming nonwoven laminates of elastic layers, the method comprising: extruding a thermoplastic polymer blend comprising elastic polymer; blowing the extruded polymer blend to form a blown film bubble; feeding the bubble to a first nip formed between a pair of rollers to collapse the bubble into a resulting laminated film; providing at least a first fibrous nonwoven web; and feeding the at least first fibrous nonwoven web to the nip to contact one side of the resulting sheet film to form a laminate comprising the sheet film and the at least first fibrous nonwoven web.
  • DE 10 2005 057 221 relates to a fixable textile fabric which can be used in particular as an interlining in the textile industry and has a backing based on a non-woven fabric, woven fabric, knitted fabric, warp-knitted fabric or the like, which is provided with an adhesive coating on at least one side. At least one additional layer of fibers which have a predetermined functionality is applied to the adhesive coating.
  • WO 2010/127781 discloses a stiffening material in the form of a hot-melt adhesive/plastic compound which has a proportion of plant fiber filler with a length of 1 to 30 mm and in an amount of up to 65% by weight, the compound having a flexural strength measured according to DIN 53121 of 1000 to 2500 N, the two components of the compound, namely the plant fiber fillers and the thermoplastic hot-melt adhesive, are agglomerated before extrusion and introduced into the extruder as a pre-agglomerate and extruded there.
  • DE 10 2019 106 995 describes a thermally fixable textile fabric, which can be used in particular as a fixable interlining, lining and/or outer fabric in the textile industry, comprising a backing material based on a meltblown fiber nonwoven, the backing material having flock fibers on one side and flock fibers on the other side the side facing away from the flock fibers has a hot-melt adhesive.
  • the claimed textile fabric should be characterized by a pleasant feel with a simultaneous low thickness and high elasticity.
  • EP 2 846 653 relates to thermally fixable sheetlike structures with a backing layer made of a textile material, to which a polyurethane hot-melt adhesive composition is applied as a two-layer adhesive structure.
  • the selected structure of the adhesive composition is intended to achieve adequate adhesion even on outer fabrics that are difficult to fix, such as, for example, fluorocarbon or polyurethane-coated outer fabrics.
  • Textile fabrics in which a loop formed by thread is looped into another loop are referred to as knitwear and are characterized by greater stretchability and elasticity than woven fabrics in which the surface is produced by crossing two thread systems.
  • the knitwear can be combined with a reinforcing material.
  • this object is achieved by a combination of a backing fleece made from melt-spun polymer fibers and a hot-melt adhesive applied to this backing fleece.
  • a first subject matter of the present invention is a reinforcement material for textiles, the reinforcement material consisting of a carrier fleece made of melt-spun polymer fibers and a hot-melt adhesive mass applied to the carrier fleece, the reinforcement material being stretched at 100 N in at least one direction by at least 120% and a maximum of 350%, each determined according to ISO 9073-3.
  • the reinforcing material according to the invention has an elongation at 100 N, determined according to ISO 9073-3, of at least 140% in at least one direction.
  • textile is understood as meaning textile and non-textile raw materials which can be processed by various methods to form linear, planar and three-dimensional structures.
  • Textile raw materials include synthetic fibers and natural fibers, while the term non-textile raw materials includes leather in particular.
  • the combination according to the invention of the special carrier fleece and the hot-melt adhesive provides a material which, in addition to excellent mechanical properties, in particular its elasticity and flexibility, offers high wearing comfort at a low weight and good breathability and so on Excellent as a reinforcement material for textiles, especially elastic ones Textiles such as knitwear and textiles with shares of elastane and lycra, is suitable, but without impairing the advantageous properties of these textiles.
  • the reinforcing material according to the invention has an elongation at 100 N of 120 to 300%, preferably 140 to 250%, determined in each case according to ISO 9073-3. In this way, even in combination with the reinforcement material according to the invention, the original elasticity and flexibility of the material to be reinforced could be retained while at the same time providing dimensionally stable support.
  • the reinforcing material according to the invention has other advantageous mechanical properties.
  • the reinforcing material according to the invention is characterized by a maximum tensile force, measured in accordance with ISO 9073-3, of at least 100 N in at least one direction.
  • the maximum tensile force is understood to mean the maximum force that is measured during the tensile test. This serves as a measure of the tear strength of the reinforcement material.
  • the reinforcing material according to the invention has a maximum tensile strength of at least 120 N, preferably at least 140 N, in at least one direction, determined in each case according to ISO 9073-3.
  • the reinforcing material according to the invention is also characterized by its isotropy, which means that it can be used in a variety of ways.
  • the reinforcing material according to the invention has only small differences in elongation and maximum tensile strength in different directions. Accordingly, an embodiment is preferred in which the elongation of the reinforcing material according to the invention at 100 N in a first direction differs from the elongation at 100 N in a second direction by no more than 30%, preferably no more than 20%, the elongation according to ISO 9073-3 is determined and the second direction is preferably perpendicular to the first direction.
  • the maximum tensile strength of the reinforcing material according to the invention in a first direction does not differ by more than 30% from the maximum tensile strength in a second direction. preferably no more than 20%, the maximum tensile force being determined according to ISO 9073-3 and the second direction preferably being perpendicular to the first direction.
  • the reinforcing material according to the invention can be used in particular to reinforce materials that are subject to high mechanical stress, such as those used for shoes, without their original properties being impaired.
  • the reinforcement material according to the invention is characterized by a corresponding elongation at break, which indicates the percentage change in length of the reinforcement material after the tear in relation to the initial length.
  • the reinforcing material according to the invention has an elongation at break of 200 to 700%, preferably 300 to 600%, determined according to ISO 9073-3.
  • carrier fleece made of melt-spun polymer fibers are preferred, which have a basis weight of 150 to 500 g/m 2 , preferably 250 to 400 g/m 2 .
  • the carrier fleece used is provided with a hot-melt adhesive which is assumed to contribute to the advantageous properties of the reinforcing material according to the invention.
  • a hot-melt adhesive which is assumed to contribute to the advantageous properties of the reinforcing material according to the invention.
  • Preferred here are embodiments in which the hot-melt adhesive layer has a weight per unit area of from 30 to 120 g/m 2 , preferably from 50 to 80 g/m 2 .
  • the properties of the reinforcing material according to the invention can be advantageously adapted by selecting suitable polymers for the carrier fleece.
  • the polymer of the carrier fleece is selected from the group of polyester-based polymers, polyamide-based polymers, polyolefin-based polymers, polyurethane-based polymers, ethyl vinyl acetate-based polymers, polyether-based polymers, the elastomer-based polymers, copolymers of these and blends of these, polyurethane-based polymers being particularly preferred.
  • Thermoplastic polyurethanes are particularly preferred from the group of polyurethane-based polymers.
  • the carrier fleece can be combined with a suitable hot-melt adhesive.
  • the hot melt adhesive used according to the invention is selected from the group consisting of linear polyesters, linear polyethers, ethylene-vinyl acetate copolymers, polyethylene, high-density polyethylene (HDPE), thermoplastic polyurethanes, polypropylenes, polyamides, thermoplastic elastomers, polyolefins and mixtures and blends of these.
  • HDPE high-density polyethylene
  • thermoplastic polyurethanes polypropylenes
  • polyamides high-density polyethylene
  • thermoplastic elastomers polyolefins and mixtures and blends of these.
  • hot-melt adhesives based on thermoplastic polyurethanes.
  • the hot-melt adhesive is applied to the carrier fleece.
  • the hot-melt adhesive preferably extends continuously over the entire surface of the carrier fleece. The continuous application of the hot-melt adhesive results in a comprehensive coating of the backing fleece with the hot-melt adhesive, for example in the form of a film. In this way, in particular, the mechanical properties of the reinforcement material can be supported.
  • the hot-melt adhesive is preferably applied discontinuously to the carrier fleece.
  • the hot-melt adhesive composition can be applied to the backing fleece, for example, in dots, in a grid, in strips or in the form of a net. The distribution of the hot-melt adhesive can take place either regularly or irregularly.
  • the hot-melt adhesive is preferably applied in fibrous form in the form of a net, it being possible for the hot-melt adhesive fibers to be spun, sprayed or laminated onto the backing fleece.
  • the hot-melt adhesive is also in the form of a tacky fleece and/or itself contains polymer fibers.
  • the reinforcement material according to the invention also has advantageous air permeability, which is particularly desirable when used to reinforce shoes or functional textiles and leads to improved wearing comfort under the Keyword breathable leads.
  • the reinforcing material according to the invention preferably has an air permeability, determined according to DIN EN ISO 9237 at 100 kPa, of at least 25 l/m 2 /s, preferably at least 30 l/m 2 /s and/or an air permeability at 200 kPa of at least 50 l /m 2 /s, preferably at least 55 l/m 2 /s.
  • the reinforcing material according to the invention preferably has an air permeability at 100 kPa of no more than 1000 l/m 2 /s, preferably no more than 750 l/m 2 /s. In this way, a material can be made available that is advantageously water-repellent, particularly for use in shoes.
  • the reinforcing material according to the invention is characterized in particular by the fact that the advantageous properties are achieved by combining only two materials, while conventional reinforcing materials generally have significantly more layers. Therefore, an embodiment of the reinforcement material according to the invention is preferred in which the reinforcement material comprises no further layers.
  • a further object of the present invention is therefore the use of the reinforcement material in the production of shoes, clothing and accessories, such as bags, belts and bracelets, in the lifestyle sector and in orthopedics. Due to its advantageous elastic properties, the use of the reinforcement material according to the invention for the reinforcement of flexible materials such as knitwear and/or textiles with proportions of elastane and lycra is particularly preferred.
  • the reinforcing material according to the invention can be combined with the textile to be reinforced using the usual methods, for example by means of hot pressing.
  • a reinforcing material according to the invention was produced from a TPU meltblown fleece with a TPU hot-melt adhesive, the hot-melt adhesive being applied in a net-like manner to the backing fleece with a weight per unit area of 60 g/m 2 became.
  • the mechanical properties and air permeability of the reinforcement material obtained are summarized in Tables 1 and 2.
  • a carrier fleece with a basis weight of 390 g/m 2 and for example 2 with a basis weight of 310 g/m 2 was used.
  • the reinforcement material according to the invention combines advantageous mechanical properties with air permeability, which allows a high level of wearing comfort.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Knitting Of Fabric (AREA)

Abstract

La présente invention concerne un matériau de renforcement pour textiles, constitué d'un non-tissé de support fait de fibres polymères filées à l'état fondu revêtues d'un adhésif thermofusible, et l'utilisation d'un matériau de renforcement de ce type.
PCT/EP2022/087050 2021-12-21 2022-12-20 Matériau de renforcement pour textiles WO2023118181A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21216506 2021-12-21
EP21216506.2 2021-12-21

Publications (1)

Publication Number Publication Date
WO2023118181A1 true WO2023118181A1 (fr) 2023-06-29

Family

ID=79018821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/087050 WO2023118181A1 (fr) 2021-12-21 2022-12-20 Matériau de renforcement pour textiles

Country Status (2)

Country Link
TW (1) TW202328534A (fr)
WO (1) WO2023118181A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090061A1 (fr) 2003-04-11 2004-10-21 Bk Giulini Gmbh Materiau rigidifiant s'utilisant dans la fabrication de chaussures et procede de production correspondant
WO2005110719A1 (fr) 2004-04-30 2005-11-24 Kimberly-Clark Worldwide, Inc. Procede permettant d'obtenir un stratifie elastique polyvalent
DE102005057221A1 (de) 2005-11-29 2007-05-31 Carl Freudenberg Kg Elastische Fixiereinlage
WO2010127781A1 (fr) 2009-05-05 2010-11-11 Bk Giulini Gmbh Matériaux de renfort thermoplastiques
EP2846653A1 (fr) 2012-05-08 2015-03-18 Carl Freudenberg KG Textile thermofixable
DE102019106995A1 (de) 2019-03-19 2020-09-24 Carl Freudenberg Kg Thermisch fixierbares textiles Flächengebilde

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090061A1 (fr) 2003-04-11 2004-10-21 Bk Giulini Gmbh Materiau rigidifiant s'utilisant dans la fabrication de chaussures et procede de production correspondant
WO2005110719A1 (fr) 2004-04-30 2005-11-24 Kimberly-Clark Worldwide, Inc. Procede permettant d'obtenir un stratifie elastique polyvalent
DE102005057221A1 (de) 2005-11-29 2007-05-31 Carl Freudenberg Kg Elastische Fixiereinlage
WO2010127781A1 (fr) 2009-05-05 2010-11-11 Bk Giulini Gmbh Matériaux de renfort thermoplastiques
EP2846653A1 (fr) 2012-05-08 2015-03-18 Carl Freudenberg KG Textile thermofixable
EP2846653B1 (fr) * 2012-05-08 2016-03-30 Carl Freudenberg KG Textile thermofixable
DE102019106995A1 (de) 2019-03-19 2020-09-24 Carl Freudenberg Kg Thermisch fixierbares textiles Flächengebilde
EP3715516A1 (fr) * 2019-03-19 2020-09-30 Carl Freudenberg KG Structure textile plane pouvant être fixée thermiquement

Also Published As

Publication number Publication date
TW202328534A (zh) 2023-07-16

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