EP4528019A1 - Revêtement hydrophobe de fibres, fils et textiles - Google Patents
Revêtement hydrophobe de fibres, fils et textiles Download PDFInfo
- Publication number
- EP4528019A1 EP4528019A1 EP23198840.3A EP23198840A EP4528019A1 EP 4528019 A1 EP4528019 A1 EP 4528019A1 EP 23198840 A EP23198840 A EP 23198840A EP 4528019 A1 EP4528019 A1 EP 4528019A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blended yarn
- fibre
- elastic fibre
- elastic
- covalently coated
- 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
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- 238000000576 coating method Methods 0.000 title claims abstract description 127
- 239000011248 coating agent Substances 0.000 title claims abstract description 118
- 239000004753 textile Substances 0.000 title claims abstract description 62
- 230000002209 hydrophobic effect Effects 0.000 title claims description 72
- 239000000835 fiber Substances 0.000 claims abstract description 206
- 150000001875 compounds Chemical class 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 42
- 150000003377 silicon compounds Chemical class 0.000 claims description 12
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims description 10
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 claims description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 2
- UHUUYVZLXJHWDV-UHFFFAOYSA-N trimethyl(methylsilyloxy)silane Chemical compound C[SiH2]O[Si](C)(C)C UHUUYVZLXJHWDV-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229920002334 Spandex Polymers 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 238000001035 drying Methods 0.000 description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 238000005406 washing Methods 0.000 description 12
- 238000000151 deposition Methods 0.000 description 11
- 230000008021 deposition Effects 0.000 description 11
- 238000009616 inductively coupled plasma Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- 229910052786 argon Inorganic materials 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 238000004626 scanning electron microscopy Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- KBOAVUSWPXRQBC-UHFFFAOYSA-N 1,1,1,2,2-pentafluoropentane Chemical compound CCCC(F)(F)C(F)(F)F KBOAVUSWPXRQBC-UHFFFAOYSA-N 0.000 description 1
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004341 Octafluorocyclobutane Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- BCCOBQSFUDVTJQ-UHFFFAOYSA-N octafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(F)C1(F)F BCCOBQSFUDVTJQ-UHFFFAOYSA-N 0.000 description 1
- 235000019407 octafluorocyclobutane Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000001314 profilometry Methods 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Images
Classifications
-
- 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
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
-
- 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
-
- 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/26—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin
Definitions
- a first aspect of the invention relates to a method for coating of elastic fibre or blended yarn comprising the coating of elastic fibre or blended yarn with an activated coating compound, yielding a covalently coated elastic fibre or covalently coated blended yarn, wherein the covalently coated elastic fibre or covalently coated blended yarn is characterised in that the coating has a thickness of 5 to 200 nm.
- a second aspect of the invention relates to a covalently coated elastic fibre or covalently coated blended yarn, wherein the coating has a thickness of 5 to 200 nm.
- a third aspect of the invention relates to a hydrophobic elastic textile comprising covalently coated elastic fibre or covalently coated blended yarn according to the second aspect of the invention, wherein the coating has a thickness of 5 to 200 nm.
- a fourth aspect of the invention relates to an apparatus for covalent coating of elastic fibre or blended yarn comprising
- a fifth aspect of the invention relates to a covalently coated elastic fibre or covalently coated blended yarn, according to the first aspect of the invention, characterised in that the covalently coated elastic fibre or covalently coated blended yarn has hydrophobic properties.
- elastic fibre in the context of the present specification relates to a fibre containing elastomer segments, a class of polymer fibre with a high elasticity and which can be stretched to a multiple of its length and return into its original state when the stretching force is omitted.
- Elastic fibre is commonly classified according to the elastic elongation, that is, high elastic fibre with elongation of 400 to 800 %, medium elastic fibre with elongation of 150 to 390 % and low elastic fibre with elongation of 20 to 150 %.
- Examples for elastic fibres are elastanes, based on polyurethane, silicones or polymultiester.
- Elastic fibre has a high elasticity, is shape-retaining, firm, tear-resistant and light.
- blended yarn in the context of the present specification relates to yarn containing elastic fibres and non-elastic fibres, wherein elastic fibres are as defined herein and non-elastic fibres relate to polymer synthetic fibres which do not contain elastomer segments, including but not limited to polyethyleneterephthalate, polyamide, polypropylene, polyacryl and polylactid.
- activated coating compound in the context of the present specification relates to a compound with hydrophobic properties, wherein a volatile precursor reacts and/or decomposes with or on a substrate, particularly the surface of the elastic fibre, yielding an activated coating compound by firmly (covalently) binding on the substrate.
- adjacent areas in the context of the present specification relates to areas built when a covalently coated elastic fibre is stretched.
- the coating on the fibre surface is pulled apart when stretched and maintains contiguous areas, when the coiled elastomer segments of the elastic fibre are increasingly straightened.
- fluorocarbon in the context of the present specification relates to chemical compounds with carbon-fluorine bonds, such as perfluorinated compounds containing further chemical elements and compounds consisting purely of fluorine and carbon atoms such as tetrafluoromethane, hexafluoropropene, octafluorocyclobutane.
- hydrofluorocarbon in the context of the present specification relates to organic compounds that contain carbon, fluorine and hydrogen atoms, such as trifluoromethane, pentafluoropentane, tetrafluoroethane, and hexafluoropropane.
- hydrocarbon in the context of the present specification relates to an organic compound consisting of hydrogen and carbon. Examples include are not limited to ethylene, acetylene, propene, butylene.
- covalently coated in the context of the present specification relates to a strong chemical bond between the fibre surface and the activated coating compound, wherein the electrons participating in the covalent bond are distributed between the bonding partners, resulting in a stable bond. Covalently coated fibres are thus more stable against acting outer forces such as through abrasion or stretching.
- a first aspect of the invention relates to a method for coating of elastic fibre or blended yarn comprising the coating of elastic fibre or blended yarn with an activated coating compound, yielding a covalently coated elastic fibre or covalently coated blended yarn, wherein the covalently coated elastic fibre or covalently coated blended yarn is characterised in that the coating has a thickness of 5 to 200 nm.
- the elastomer segments of the elastic fibres can be straightened out resulting in the elastic properties of the fibres, while the rigid segments provide the fibre structure yielding solid strands.
- prepolymers are drawn out to produce the solid strands that are bundled together to achieve long elastic fibres. Due to the natural stickiness of the elastic strands that adhere to one another, the elastic fibre has properties similar to a monofilament fibre.
- the sticky surface of the elastic fibre further requires the application of a finishing agent after the drawing process, typically a silicone oil.
- the finishing material is loosely applied and non-covalently bond to the elastic fibres. However, while the finishing material is hydrophobic, it gets easily spread or washed out, so that the elastic fibres lose their hydrophobicity over time.
- the herein claimed method is a method for directly coating the elastic fibre or a yarn comprising an elastic fibre, prior to incorporating them into a textile, wherein the coating is applied as a hydrophobic coating, the activated coating compound, which covalently binds onto the fibre or yarn yielding an adjustable coating of 5 to 200 nm thickness.
- the adjusted film thickness allows high adhesion of the activated coating compound at least on portions of the elastic fibre surface.
- the hydrophobic coating is more durable and less prone to be reduced in its effect due to wearing and washing and still allows further textile processing.
- the method for coating of elastic fibre or blended yarn comprises the coating of elastic fibre or blended yarn with an activated coating compound, yielding a covalently coated elastic fibre or covalently coated blended yarn, wherein the covalently coated elastic fibre or covalently coated blended yarn is characterised in that the coating has a thickness of 10 to 100 nm.
- the method for coating of elastic fibre or blended yarn comprises the coating of elastic fibre or blended yarn with an activated coating compound, yielding a covalently coated elastic fibre or covalently coated blended yarn, wherein the covalently coated elastic fibre or covalently coated blended yarn is characterised in that the coating has a thickness of 25 to 40 nm.
- the film thickness of 25 to 40 nm is both, sufficiently thick to guarantee a highly hydrophobic surface, yet thin enough to allow unrestricted stretching and recoiling of the elastic fibres to avoid film failure under tensile and compressive stress.
- the elastic fibre or blended yarn is washed prior to being coated with the activated coating compound, enabling covalent coating on the surface of the elastic fibre or blended yarn.
- washing of the elastic fibre or blended yarn prior to being coated at least partly removes the finishing agent applied to the elastic fibre, which is typically a silicon oil.
- the finishing agent applied for handling the elastic fibres due to the natural stickiness of the elastic strands that adhere to one another is removed to an extent to uncover the fibre surface, while keeping the fibre structure, i.e. the sticking of the bundles, intact.
- Application of a coating can thus directly interact with the sticky fibre surface.
- the method further comprises pre-stretching of the elastic fibre or blended yarn.
- the elastic fibres are pre-stretched while applying the activated coating compound.
- the elastic fibre or blended yarn is pre-stretched by at least 10%.
- Pre-stretching of the elastic fibre or blended yarn by at least 10% allows for at least 50% surface coverage through the coating maintained during stretching and relaxing which provides a coated fibre or coated blended yarn with improved hydrophobic properties.
- the elastic fibre or blended yarn is pre-stretched between 10% to 300%.
- the elastic fibre or blended yarn is pre-stretched between 10% to 200%.
- the elastic fibre or blended yarn is pre-stretched between 30% to 200%.
- the method comprises introducing the winded elastic fibre or winded blended yarn into a vacuum chamber.
- the textile can undergo further wet chemical methods for further treatment with hydrophobic compounds.
- Textiles containing already hydrophobically coated elastic fibres according to the invention have the advantage of being hydrophobically coated even on the inlying fibres and are thus, after additional wet chemical hydrophobic coating, coated throughout the entire textile having a long lasting hydrophobic effect. Insufficient adherence or a decreasing hydrophobic effect through appropriate washing and wearing the textile is avoided.
- the elastic fibre is an elastane comprising polyurethane.
- Elastane based on polyurethane has an increased colour fastness. This applies to elastic fibre used as such and blended yarn comprising elastic fibre.
- a second aspect of the invention relates to a covalently coated elastic fibre or covalently coated blended yarn, wherein the coating has a thickness of 5 to 200 nm.
- the adjusted film thickness allows high adhesion of the activated coating compound at least on portions of the elastic fibre surface during stretching and recoiling.
- the hydrophobic coating is more durable and less prone to be reduced in its effect due to wearing and washing and still allows further textile processing.
- the covalently coated elastic fibre or covalently coated blended yarn has a coating with a thickness of 10 to 100 nm.
- the covalently coated elastic fibre or covalently coated blended yarn has a coating with a thickness of 25 to 40 nm.
- the covalently coated elastic fibre is an elastane.
- Elastane based on polyurethane has an increased colour fastness.
- the covalently coated elastic fibre or covalently coated blended yarn is covalently coated in adjacent areas covering at least 50% of the fibre surface, when the covalently coated elastic fibre or covalently coated blended yarn is stretched to 300%, providing hydrophobic properties of the covalently coated elastic fibre.
- the covalently coated elastic fibre or covalently coated blended yarn is covalently coated in adjacent areas covering at least 70% of the fibre surface, when the covalently coated elastic fibre or covalently coated blended yarn is stretched to 300%, providing hydrophobic properties of the covalently coated elastic fibre.
- covalently bound coating portions When stretching the elastic fibre, covalently bound coating portions maintain contiguous areas that are pulled apart when the coiled amorphous segments are increasingly straightened. These coated portions forming adjacent areas are sufficient to provide hydrophobic properties of the elastic fibres.
- a third aspect of the invention relates to a hydrophobic elastic textile comprising covalently coated elastic fibre or covalently coated blended yarn according to the second aspect of the invention, wherein the coating has a thickness of 5 to 200 nm.
- the hydrophobic elastic textile comprises covalently coated elastic fibre or covalently coated blended yarn according to the second aspect of the invention, wherein the coating has a thickness of 10 to 100 nm.
- the hydrophobically elastic textile comprises covalently coated elastic fibre or covalently coated blended yarn according to the second aspect of the invention, wherein the coating has a thickness of 25 to 40 nm.
- the hydrophobic elastic textile is further coated with a hydrophobic compound.
- the textile can undergo further wet chemical methods for further treatment with hydrophobic compounds.
- Textiles containing already hydrophobically coated elastic fibres have the advantage of being hydrophobically coated even on the inlying fibres and thus, after additional wet chemical hydrophobic coating coated throughout the entire textile, have a long lasting hydrophobic effect. Insufficient adherence or a decreasing hydrophobic effect through washing and wearing the textile is avoided.
- the textile has additionally better drying properties after storage in water and an improved wash resistance.
- the hydrophobic elastic textile comprises covalently coated elastic fibre according to the second aspect of the invention and non-elastic fibres.
- the non-elastic fibres are hydrophobically, covalently coated prior to being spun into the textile.
- the non-elastic fibres are covalently coated according to the method of the first aspect of the invention.
- the textile comprising covalently coated elastic fibres and covalently coated non-elastic fibres has improved hydrophobic properties.
- the hydrophobic elastic textile comprises covalently coated elastic fibre according to the second aspect of the invention and non-elastic fibres, wherein the non-elastic fibres are hydrophobically, covalently coated prior to being spun into the textile and wherein the hydrophobic elastic textile is further coated with a hydrophobic compound.
- Additional hydrophobic treatment of the hydrophobic elastic textile using wet chemical methods can improve the grip or the permeability of the textile.
- the hydrophobic elastic textile comprises covalently coated blended yarn comprising elastic fibre.
- a fourth aspect of the invention relates to an apparatus for covalent coating of elastic fibre or blended yarn comprising
- the apparatus allows for an increased processual rate as an increased amount of fibre or yarn can be introduced into a plasma zone by winding on at least one inner bobbin.
- the plasma chamber with at least one plasma zone is a plasma chamber with at least one inductively coupled plasma zone.
- the apparatus comprises a source for a coating compound to be uniformly introduced into the plasma zone.
- the apparatus comprises an argon source used as carrier gas for the coating compound.
- the apparatus for covalent coating of elastic fibre or blended yarn comprising
- the apparatus for covalent coating of elastic fibre or blended yarn comprising
- the throughput using an apparatus comprising six inner bobbins is increased six times compared to an apparatus comprising one inner bobbin.
- the two plasma zones are located at opposite ends of the plasma chamber.
- three of the six bobbins are located in one of the two plasma zones and three of the six bobbins are located in the other of the two plasma zones on the opposite side of the plasma chamber.
- the apparatus has two sources of the coating compound in case the apparatus comprises two plasma zones.
- a fifth aspect of the invention relates to a covalently coated elastic fibre or covalently coated blended yarn, according to the first aspect of the invention, characterised in that the covalently coated elastic fibre or covalently coated blended yarn has hydrophobic properties.
- An elastic fibre made of elastane (EL 78 dtex) is first cleaned in a roll-to-roll process to partly remove the finishing agent and to uncover the fibre surface.
- the slightly pre-stretched fibres provided on a bobbin are winded through an ultrasonic cleaning bath with following parameters:
- the fibre is immediately dried with an air dryer at 100°C before winding up on a second bobbin.
- the fibres Upon winding, the fibres are stretched to 100%.
- the fibre is re-winded to reach a defined pre-stretching of 50%, using 60 m/min for the winder and 30 m/min for the take-up reel.
- the inner bobbin is provided containing the fibre for the coating process.
- the bobbin carrying the pre-stretched, cleaned and uncoated fibre is centered in front of an inductively-coupled plasma (ICP) source with 80 mm distance.
- ICP inductively-coupled plasma
- a nominal coating thickness of 35 nm is observed on the pre-stretched elastic fibre.
- Such covalently coated hydrophobic elastic fibres are then used for further textile processes.
- An elastic fibre made of elastane (EL 78 dtex) is covalently coated according to Example 1.
- a second, non-elastic uncoated yarn made of polyamide 6.6 (PA 78 dtex x2) is used to cover the covalently coated hydrophobic elastic fibre made of elastane (EL 78 dtex) to produce a blended yarn (PA/EL (15%)).
- a blended yarn (PET/EL (15%)) is produced similar to Example 2 by using an uncoated elastic fibre made of elastane (EL 78 dtex) and an uncoated non-elastic yarn made of polyethylene terephthalate (PET 78 dtex x2).
- the blended yarn is first cleaned in a roll-to-roll process according to Example 1.
- the blended yarn is winded on a bobbin applying a pre-stretching of 200% with respect to the elastic fibre.
- the bobbin is centered in front of an inductively-coupled plasma (ICP) source with 80 mm distance for the low pressure plasma coating process.
- ICP inductively-coupled plasma
- a nominal coating thickness of 40 nm of a hydrophobic coating is observed on the blended yarn.
- An elastic fibre made of elastane (EL 78 dtex) is covalently coated according to example 1.
- a second, non-elastic yarn made of polyethylene terephthalate (PET 78 dtex x2) is covalently coated. The yarn is provided as a pre-cleaned yarn, thus not further cleaning is applied.
- the deposition rate is determined on the turning bobbin by placing a masked silicon wafer sample at the position of the fibre and measuring the film thickness after deposition along the edge of the unmasked sample by profilometry. The film thickness on the fiber is then calculated regarding the fibre length exposed to the plasma zone and the velocity of winding.
- the mass of the deposited coating can be obtained.
- the film thickness can then be calculated.
- SEM Scanning Electron Microscopy
- Washing trials were performed for a duration of 45 minutes at a temperature of 50 degree Celsius using 150 ml of water and 0.25 g of detergent (ECE-98). To simulate five typical washing cycles, steel balls with a diameter of 4 mm were applied to the washing container.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23198840.3A EP4528019A1 (fr) | 2023-09-21 | 2023-09-21 | Revêtement hydrophobe de fibres, fils et textiles |
| PCT/EP2024/076685 WO2025062043A1 (fr) | 2023-09-21 | 2024-09-23 | Revêtement hydrophobe de fibres, de fils et de textiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23198840.3A EP4528019A1 (fr) | 2023-09-21 | 2023-09-21 | Revêtement hydrophobe de fibres, fils et textiles |
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| Publication Number | Publication Date |
|---|---|
| EP4528019A1 true EP4528019A1 (fr) | 2025-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23198840.3A Pending EP4528019A1 (fr) | 2023-09-21 | 2023-09-21 | Revêtement hydrophobe de fibres, fils et textiles |
Country Status (2)
| Country | Link |
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| EP (1) | EP4528019A1 (fr) |
| WO (1) | WO2025062043A1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2043438C1 (ru) | 1992-12-02 | 1995-09-10 | Ивановский научно-исследовательский экспериментально-конструкторский машиностроительный институт | Способ обработки длинномерного материала низкотемпературной плазмой и устройство для его осуществления |
| EP0695384B1 (fr) | 1993-04-21 | 2002-04-03 | Maass, Ruth | Procede d'enrobage de fils et de fibres dans des objets textiles |
| US20100035119A1 (en) * | 2006-12-20 | 2010-02-11 | Carl Freudenberg Kg | Stable temperature plasma treated formation, and method for the production thereof |
| US20160250831A1 (en) * | 2013-10-21 | 2016-09-01 | The North Face Apparel Corp. | Functional biomaterial coatings for textiles and other substrates |
| EP3697958B1 (fr) | 2017-10-16 | 2021-03-10 | Werner & Mertz GmbH | Procédé de fabrication d'un article textile ayant une surface textile hydrophobisée par traitement plasma et un traitement chimique au mouillé |
| US20210214887A1 (en) * | 2018-05-31 | 2021-07-15 | Xefco Pty Ltd | Improved water repellent substrate and application method therefor |
-
2023
- 2023-09-21 EP EP23198840.3A patent/EP4528019A1/fr active Pending
-
2024
- 2024-09-23 WO PCT/EP2024/076685 patent/WO2025062043A1/fr active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2043438C1 (ru) | 1992-12-02 | 1995-09-10 | Ивановский научно-исследовательский экспериментально-конструкторский машиностроительный институт | Способ обработки длинномерного материала низкотемпературной плазмой и устройство для его осуществления |
| EP0695384B1 (fr) | 1993-04-21 | 2002-04-03 | Maass, Ruth | Procede d'enrobage de fils et de fibres dans des objets textiles |
| US20100035119A1 (en) * | 2006-12-20 | 2010-02-11 | Carl Freudenberg Kg | Stable temperature plasma treated formation, and method for the production thereof |
| US20160250831A1 (en) * | 2013-10-21 | 2016-09-01 | The North Face Apparel Corp. | Functional biomaterial coatings for textiles and other substrates |
| EP3697958B1 (fr) | 2017-10-16 | 2021-03-10 | Werner & Mertz GmbH | Procédé de fabrication d'un article textile ayant une surface textile hydrophobisée par traitement plasma et un traitement chimique au mouillé |
| US20210214887A1 (en) * | 2018-05-31 | 2021-07-15 | Xefco Pty Ltd | Improved water repellent substrate and application method therefor |
Non-Patent Citations (2)
| Title |
|---|
| "Waterproof and Water Repellent Textiles and Clothing", 2018, ELSEVIER LTD |
| LU JINGELASTIC FIBERS: "Handbook of Fibrous Materials", 2020, WILEY-VCH VERLAG GMBH & CO. KGAA |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025062043A1 (fr) | 2025-03-27 |
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