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WO2025148015A1 - Revêtement omniphobe sans fluor - Google Patents

Revêtement omniphobe sans fluor

Info

Publication number
WO2025148015A1
WO2025148015A1 PCT/CN2024/072039 CN2024072039W WO2025148015A1 WO 2025148015 A1 WO2025148015 A1 WO 2025148015A1 CN 2024072039 W CN2024072039 W CN 2024072039W WO 2025148015 A1 WO2025148015 A1 WO 2025148015A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
repellant layer
oil
poly
repellant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/072039
Other languages
English (en)
Inventor
Hau To Wong
Alex Chan
Lee Ying Yu
Kun Wang
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.)
Hong Kong Research Institute of Textiles and Apparel Ltd
Original Assignee
Hong Kong Research Institute of Textiles and Apparel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hong Kong Research Institute of Textiles and Apparel Ltd filed Critical Hong Kong Research Institute of Textiles and Apparel Ltd
Priority to PCT/CN2024/072039 priority Critical patent/WO2025148015A1/fr
Publication of WO2025148015A1 publication Critical patent/WO2025148015A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/13—Alginic acid or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/11—Oleophobic properties
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties

Definitions

  • the present disclosure relates to a fluorine-free omniphobic coating composite useful for imparting water-repellant and oil-repellant properties to a textile, coated textiles comprising the omniphobic coating composite, and methods of preparation thereof.
  • Table 1 which are able to lower the surface energies of the materials, prevent liquid droplets from wetting and staying on the material surface when it is tilted.
  • Table 1 C8 based fluorochemicals for water and oil repellents.
  • PFOA perfluorooctanoic acid
  • PFOS perfluorooctane sulfonate
  • C6 fluorochemicals share the same working principles as C8 fluorochemicals, by lowering the surface energies of material surfaces.
  • PFHA perfluoroheptanoic acid
  • PFOA perfluoroheptanoic acid
  • Proposals have been made to restrict the use of C6 fluorochemicals in certain applications, including textiles. Therefore, development of an effective fluorine-free oil repellent coating is highly demanded.
  • Fluorine-free water-repellent surface finishes have achieved further advancement compared to oil-repellent surface finishes partly due to market demand. Another major reason is that water generally has high surface tension compared with oils as shown in
  • the concentration of the binder in the one or more adhesion promotion layers can range from 80-100%wt/wt, 85-100%wt/wt, 90-100%wt/wt, 91-100%wt/wt, 92-100%wt/wt, 93-100%wt/wt, 94-100%wt/wt, 95-100%wt/wt, 96-100%wt/wt, 97-100%wt/wt, 98-100%wt/wt, or 99-100%wt/wt.
  • the oil-repellant layer precursor solution can be deposited using any number of methods known in the art.
  • the adhesion of the water-repellant layer with the oil-repellant layer can be advantageously increased by addition of a calcium salt to the water-repellant layer.
  • the water-repellant layer precursor solution further comprises a calcium salt comprising one or more anions selected from the group consisting of chloride, bromide, iodide, carbonate, nitrate, sulfate, bicarbonate, phosphate, monohydrogen phosphate, dihydrogen phosphate, sulfamate, acetate.
  • the water-repellant layer further comprises calcium chloride.
  • the adhesion promotion layer precursor solution can comprise any solvent in which the one or more crosslinking agents are at least partially soluble.
  • exemplary solvents include water, alcohols, alkyl halides, ethers, esters, ketones, formamides, alkylnitriles, alkylsulfoxides, aromatic solvents, and mixtures thereof.
  • the solvent is water.
  • the concentration of the one or more crosslinking agents in the adhesion promotion layer precursor solution can range from 0.1-10%wt/wt, 0.1-9%wt/wt, 0.1-8%wt/wt, 0.1-7%wt/wt, 0.1-6%wt/wt, 0.1-5%wt/wt, 0.1-4%wt/wt, 0.1-3%wt/wt, 0.1-2%wt/wt, 0.5-2%wt/wt, or 0.5-1.5%wt/wt.
  • the order of steps (a) , (b) , optionally (c) , and optionally (d) is determined based on the desired sequence of the water-repellant layer, oil-repellant layer, and optionally the one or more adhesion promotion layers on the textile surface.
  • the method comprises:
  • the precursor solutions described herein can be applied to a surface of a textile using any method known in the art, such as by spin coating, printing, print screening, spraying, electrospinning, painting, brushing, dip coating, dip-padding, knife coating, .
  • the precursor solutions described herein can be applied to a surface of a textile using a brush, blade, roller, sprayer (for example, air-assisted or airless, electrostatic) , vacuum coater, curtain coater, flood coater, or any other means known in the art.
  • the precursor coatings described herein can be cured at 40-200°C. In certain embodiments, the step of curing can be conducted for 3-30 minutes. Any means for applying heat can be used to cure the precursor coatings described herein. In certain embodiments, an oven and/or hot press machine is used to cure the precursor coatings.
  • a polyester-cotton fabric was treated by a 3-layer composite surface finish.
  • the composition of fabric includes 65%polyester and 35%cotton and its nominal weight is 180 g/sqm.
  • the middle layer was applied on top of the bottom layer by knife coating in coating-drying cycles.
  • the process was performed by using knife coating machine at 50mm/sdrawdown speed.
  • the coated fabric was dried in an oven at 60°C for 10mins.
  • the composition of the coating paste is shown in
  • the middle layer was applied on top of the bottom layer by knife coating in coating-drying cycles.
  • the process was performed by using knife coating machine at 50mm/sdrawdown speed.
  • the coated fabric was dried in an oven at 60°C for 10mins.
  • the composition of the coating paste is shown in
  • Table 8 Composition of knife coating paste of the middle layer
  • a polyester-cotton fabric was treated by a 3-layer composite surface finish.
  • the composition of fabric includes 65%polyester and 35%cotton and its nominal weight is 180 g/sqm.
  • the middle layer was applied on top of the bottom layer by knife coating in coating-drying cycles.
  • the process was performed by using knife coating machine at 50mm/sdrawdown speed.
  • the coated fabric was dried in an oven at 60°C for 10mins.
  • the composition of the coating paste is shown in .
  • Table 11 Composition of knife coating paste of the middle layer
  • top layer was coated on top of the middle layer by dipping into the paste of
  • Table 12 Composition of padding paste of the top layer
  • the coated fabric was compared with an un-coated fabric and a C6 fluorochemical comparative example in terms of water repellency and oil repellency. The results are shown in
  • a polyester-cotton fabric was treated by a 3-layer composite surface finish.
  • the composition of fabric includes 65%polyester and 35%cotton and its nominal weight is 225 g/sqm.
  • the middle layer was applied on top of the bottom layer by knife coating in coating-drying cycles.
  • the process was performed by using knife coating machine at 50mm/sdrawdown speed.
  • the coated fabric was dried in an oven at 60°C for 10mins.
  • the composition of the coating paste is shown in
  • Table 15 Composition of padding paste of the top layer
  • the coated fabric was compared with an un-coated fabric and a C6 fluorochemical comparative example in terms of water repellency and oil repellency. The results are shown in

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un composite de revêtement omniphobe sans fluor utile pour fournir une répulsion de l'eau et de l'huile à un textile, des textiles revêtus les comprenant, et son procédé de préparation. Le composite de revêtement omniphobe peut comprendre une couche hydrofuge, une couche oléophobe, et éventuellement une ou plusieurs couches de préparation à l'adhérence, la couche hydrofuge comprenant au moins un additif hydrophobe, la couche oléofuge comprenant au moins un additif oléophobe, et la ou les couches de préparation à l'adhérence comprenant un ou plusieurs agents de réticulation, le composite de revêtement omniphobe étant exempt de fluor.
PCT/CN2024/072039 2024-01-12 2024-01-12 Revêtement omniphobe sans fluor Pending WO2025148015A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/072039 WO2025148015A1 (fr) 2024-01-12 2024-01-12 Revêtement omniphobe sans fluor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/072039 WO2025148015A1 (fr) 2024-01-12 2024-01-12 Revêtement omniphobe sans fluor

Publications (1)

Publication Number Publication Date
WO2025148015A1 true WO2025148015A1 (fr) 2025-07-17

Family

ID=96386292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/072039 Pending WO2025148015A1 (fr) 2024-01-12 2024-01-12 Revêtement omniphobe sans fluor

Country Status (1)

Country Link
WO (1) WO2025148015A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102137722A (zh) * 2006-10-03 2011-07-27 杨百翰大学 疏水疏油涂层及其制备方法
CN202847023U (zh) * 2012-10-29 2013-04-03 吴江市南华纺织整理厂 一种防水透湿型坦克蓬盖布
US20200079974A1 (en) * 2017-04-17 2020-03-12 Cornell University Fluorine-free oil repellent coating, methods of making same, and uses of same
CN212994688U (zh) * 2020-08-21 2021-04-20 湖州新仲湖针织制衣有限公司 无氟防水型复合口罩布料
US20210253901A1 (en) * 2018-08-21 2021-08-19 Board Of Trustees Of Michigan State University Biodegradable omniphobic coatings, related articles, and related methods
CN114555648A (zh) * 2019-10-08 2022-05-27 罗地亚经营管理公司 疏水改性的多糖及其用途
WO2022232690A1 (fr) * 2021-04-30 2022-11-03 Cornell University Revêtements hydrophobes et oléophobes, leurs procédés de fabrication et leurs utilisations

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102137722A (zh) * 2006-10-03 2011-07-27 杨百翰大学 疏水疏油涂层及其制备方法
CN202847023U (zh) * 2012-10-29 2013-04-03 吴江市南华纺织整理厂 一种防水透湿型坦克蓬盖布
US20200079974A1 (en) * 2017-04-17 2020-03-12 Cornell University Fluorine-free oil repellent coating, methods of making same, and uses of same
US20210253901A1 (en) * 2018-08-21 2021-08-19 Board Of Trustees Of Michigan State University Biodegradable omniphobic coatings, related articles, and related methods
CN114555648A (zh) * 2019-10-08 2022-05-27 罗地亚经营管理公司 疏水改性的多糖及其用途
CN212994688U (zh) * 2020-08-21 2021-04-20 湖州新仲湖针织制衣有限公司 无氟防水型复合口罩布料
WO2022232690A1 (fr) * 2021-04-30 2022-11-03 Cornell University Revêtements hydrophobes et oléophobes, leurs procédés de fabrication et leurs utilisations

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