WO2025007597A1 - Tissu pour soins de santé à base de lyocell/bambou composite ignifuge et à ions négatifs - Google Patents

Tissu pour soins de santé à base de lyocell/bambou composite ignifuge et à ions négatifs Download PDF

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Publication number
WO2025007597A1
WO2025007597A1 PCT/CN2024/083995 CN2024083995W WO2025007597A1 WO 2025007597 A1 WO2025007597 A1 WO 2025007597A1 CN 2024083995 W CN2024083995 W CN 2024083995W WO 2025007597 A1 WO2025007597 A1 WO 2025007597A1
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Prior art keywords
fiber
lyocell
flame retardant
oxygen ion
negative oxygen
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English (en)
Chinese (zh)
Inventor
卫敏
方彦雯
李雷
廖钟财
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Heye Health Technology Co Ltd
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Heye Health Technology Co Ltd
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Priority to JP2025530495A priority Critical patent/JP2025539378A/ja
Publication of WO2025007597A1 publication Critical patent/WO2025007597A1/fr
Anticipated expiration legal-status Critical
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    • 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
    • D03D15/208—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 cellulose-based
    • D03D15/225—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 cellulose-based artificial, e.g. viscose
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • 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
    • D03D15/208—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 cellulose-based
    • D03D15/217—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 cellulose-based natural from plants, e.g. cotton
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
    • 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
    • D06M11/58—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 nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64—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 nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • D06M11/65—Salts of oxyacids of nitrogen
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/288—Phosphonic or phosphonous acids or derivatives thereof
    • D06M13/29—Phosphonic or phosphonous acids or derivatives thereof containing halogen atoms
    • 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
    • D06M14/02—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of natural origin
    • D06M14/04—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of natural origin of vegetal origin, e.g. cellulose 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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • 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
    • D06M2200/30—Flame or heat resistance, fire retardancy properties
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/10—Bamboo
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres

Definitions

  • the invention belongs to the field of flame-retardant fiber fabrics, and relates to a flame-retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and a process method thereof.
  • Lyocell fiber is a new type of environmentally friendly cellulose fiber. It uses N-methylmorpholine-N-oxide (NMMO) as a solvent. This solvent has a very high recovery rate and can be recycled and reused after use, which reduces environmental pollution while saving resources. In terms of performance, it has the advantages of soft and comfortable feel and good breathability. As a new type of green fiber, it is widely used in clothing, home decoration and other industries.
  • NMMO N-methylmorpholine-N-oxide
  • the flame retardant modification of fiber fabrics currently has the following main problems: the flame retardants or additives used in flame retardant fiber fabrics tend to gradually lose their effectiveness as the use time increases or the number of washings increases, resulting in a decrease in flame retardant performance; in addition, many flame retardants will pollute the environment, especially halogenated flame retardants, the pollutants they contain may remain in the fabrics, or even be released into the surrounding environment, which has a greater impact on the environment; some flame retardants contain harmful substances, such as chlorine and bromine, which may cause potential harm to human health, such as carcinogenicity, damage to the reproductive system, etc., and are potential hazards to human health. Therefore, the development of a flame retardant Lyocell fiber fabric with a simple process, stable flame retardant performance, and no impact on human health is of great significance to the healthy development of humans and the environment.
  • the purpose of the present invention is to overcome the deficiencies of the prior art and provide a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and a preparation method thereof.
  • a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric the fabric is composed of Lyocell fiber, bamboo fiber and phosphorus-containing flame retardant, the phosphorus-containing flame retardant is deposited on the surface of Lyocell fiber by surface graft copolymerization, the bamboo fiber is negative oxygen ion bamboo fiber, and the two fibers are co-woven.
  • the fiber fabric has flame retardancy, and the vertical burning test results show that the afterflame time is 0 s, the burning speed is as low as 1.6 mm/s, the carbonization length is 48 mm, the limiting oxygen index is 45.6%, and it also has negative oxygen ions that are beneficial to human health.
  • the present invention develops a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and a preparation method thereof for fiber fabrics, and finally obtains a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric with strong flame retardancy and stable chemical properties.
  • graft copolymerization is an environmentally friendly and effective method to modify the chemical structure of the fabric surface. It can introduce polymer chains into the surface without destroying the overall structure of the fabric, and due to the strong covalent bond between the grafted polymer chains and the fiber surface, the fabric has good durability.
  • phosphorus-containing flame retardants are introduced in combination with chemical modification, and phosphorus and nitrogen are used for synergistic flame retardancy to improve the flame retardant effect of the fabric.
  • Further blending with negative oxygen ion bamboo fiber, a functional fiber fabric with green and environmentally friendly flame retardant and negative oxygen ion composite effects is developed.
  • the flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric is characterized in that: first, the Lyocell fiber is immersed in a 5 wt% H2SO4 aqueous solution at 45°C for 30 minutes, then the fiber is rinsed with distilled water until the washing liquid is neutral, and the fiber is dried to a constant weight.
  • the Lyocell fiber has a breaking strength of 3.9 cN/dtex, a breaking strength CV of 17.38%, a breaking elongation of 23.28%, a regain of 4.58%, an average length of 37.0 mm, a volume resistivity of 8.3 ⁇ 105 ⁇ •cm, and a linear density of 1.92 dtex.
  • the pH of the H2SO4 aqueous solution is 1, and the drying conditions are: pre-baking in a constant temperature oven at 80°C for 5 min and baking at 160°C for 3 min.
  • distilled water is added to a three-necked flask equipped with a constant pressure dropping funnel and a reflux condenser, and the treated Lyocell fiber is placed therein, and the pH is adjusted to 2 with nitric acid, and deoxidized by purging with nitrogen for 30 minutes under stirring, and then ammonium cerium nitrate is added to pre-oxidize the fiber.
  • an aqueous solution of acrylamide is added dropwise, and the mixture is stirred at 45° C. for 4 h under a nitrogen atmosphere. After the reaction, a fiber with a yellow viscous substance on the surface is obtained, which is washed with distilled water and dried to a constant weight.
  • the concentration of acrylamide aqueous solution was 40 wt%, and 10 ml was added dropwise.
  • the treated Lyocell fiber is placed in a three-necked flask filled with tetrahydrofuran, and an appropriate amount of triethylamine is added as an acid binding agent.
  • a reflux condenser and a dropping funnel are provided, and diphenylphosphinoyl chloride is placed in the dropping funnel. The air in the tube is exhausted, and nitrogen is filled for protection. Then diphenylphosphinoyl chloride is added dropwise, and the reaction is carried out in an ice bath for 6 hours. The temperature is then raised to 50°C, and after reacting for 4 hours, the fiber is taken out, repeatedly rinsed with water, and dried to constant weight to obtain flame-retardant modified Lyocell fiber.
  • the dosage of triethylamine and diphenylphosphinoyl chloride is 1:1.
  • flame-retardant Lyocell fiber is used as warp yarn and negative oxygen ion bamboo fiber is used as weft yarn for blending
  • the textile process is as follows: fiber pretreatment ⁇ cotton mixing ⁇ cotton opening and cleaning ⁇ cotton carding ⁇ drawing ⁇ coarse yarn ⁇ spun yarn ⁇ winding ⁇ warping ⁇ sizing ⁇ drawing in ⁇ weaving to obtain flame-retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric.
  • the breaking strength of negative oxygen ion bamboo fiber is 2.29 cN/dtex
  • the breaking strength CV is 15.1%
  • the breaking elongation is 24.2%
  • the regain is 12.8%
  • the average length is 37.9 mm
  • the linear density is 1.31 dtex
  • the negative oxygen ion concentration is 1060•cm-3.
  • the flame-retardant Lyocell fiber and the negative oxygen ion bamboo fiber were evenly sprayed with the antistatic agent mixture after pre-loosening and left to stand for more than 12 hours.
  • the mass ratio of the antistatic agent to water in the antistatic agent mixture was 1:30.
  • the weaving process has a designed warp density of 685 strands/10 cm, a designed weft density of 433 strands/10 cm, a width of 330 cm, and a five-piece three-fly satin weave.
  • thermogravimetric analysis is used to test the thermal stability of flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabrics using a TG thermal analyzer.
  • TG thermogravimetric analysis
  • the YG(13)815D-I type (vertical method) fabric flame retardant performance tester is used to test the vertical combustion performance of fiber fabrics.
  • the ASTMD6413-08 type (oxygen index method) fabric flame retardant performance tester is used to test the combustion performance of fiber fabrics to determine the limiting oxygen index value.
  • the sample mass in the TG test is 3 mg
  • the atmosphere is nitrogen
  • the heating rate is 10 °C/min
  • the heating range is 0 ⁇ 800 °C.
  • the sample In the determination of the limiting oxygen index, the sample is clamped vertically in a transparent combustion tube with a sample clamp, in which there is an upward flow of oxygen and nitrogen. The upper end of the sample is lit, and the subsequent combustion phenomenon is observed. The continuous combustion time and the distance burned are compared with the specified limit values, and the smoldering time is recorded.
  • the limiting oxygen index value can be measured through a series of test results in different oxygen concentrations.
  • the flame-retardant negative oxygen ion composite fiber fabric prepared by the present invention is composited with flame-retardant Lyocell fiber and negative oxygen ion bamboo fiber.
  • the flame-retardant Lyocell fiber is introduced into an acrylamide intermediate by a graft copolymerization method, and a phosphorus-containing flame retardant is introduced into the intermediate for phosphorylation to obtain phosphorus- and nitrogen-containing synergistic flame-retardant Lyocell fiber, which is co-spun with negative oxygen ion bamboo fiber to improve the flame retardancy of the fabric and enhance the health of the fabric.
  • the fiber fabric has excellent flame retardancy, and the vertical burning test results show that the afterflame time is 0 s, the burning speed is as low as 1.6 mm/s, and the carbonization length is 48 mm.
  • the present invention provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric, which is composed of acrylamide graft copolymerization/chemically modified flame retardant modified Lyocell fiber and negative oxygen ion bamboo fiber.
  • the acrylamide is deposited on the surface of the Lyocell fiber by graft copolymerization, and the phosphorus-containing flame retardant is grafted onto the acrylamide by a chemical method, thereby enhancing the flame retardant properties of the fiber.
  • the blending of negative oxygen ion bamboo fiber enhances the health of the fabric.
  • the graft copolymerization method of acrylamide is to introduce it into cellulose fiber through the reaction between the hydroxyl group on the cellulose macromolecule and the amino group on the acrylamide, and further chemically modify it to introduce phosphorus-containing flame retardants to enhance its flame retardancy. This method has a long-lasting flame retardant effect and stable flame retardant performance.
  • the present invention has proved through vertical combustion experiment that the flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric provided by the present invention has excellent flame retardant performance, and its limiting oxygen index reaches 45.6%, and after 30 times of washing, the limiting oxygen index can still be maintained at 39.1%. It shows that the flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric provided by the present invention has excellent flame retardant function.
  • FIG. 1 is a process flow chart of the manufacture of flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 40 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • the flame-retardant Lyocell fiber is used as the warp yarn and the negative oxygen ion bamboo fiber is used as the weft yarn for blending.
  • the textile process is as follows: fiber pretreatment ⁇ cotton blending ⁇ cotton opening and cleaning ⁇ cotton carding ⁇ drawing ⁇ coarse yarn ⁇ spun yarn ⁇ winding ⁇ warping ⁇ sizing ⁇ drawing in ⁇ weaving.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 0 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 10 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 20 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 30 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 50 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • This embodiment provides a flame retardant and negative oxygen ion composite Lyocell/bamboo fiber health care fabric and its production process, the formula is as follows:
  • Lyocell fiber 5 wt% H2SO4 aqueous solution, nitric acid, cerium ammonium nitrate, 60 wt% acrylamide aqueous solution, tetrahydrofuran, triethylamine, diphenylphosphoryl chloride, negative oxygen ion bamboo fiber.
  • the non-flame retardant modified Lyocell fiber is used to prepare the Lyocell/bamboo fiber health care fabric, and the specific steps are as follows:
  • the Lyocell fiber is used as the warp yarn and the negative oxygen ion bamboo fiber is used as the weft yarn for blending.
  • the textile process is as follows: fiber pretreatment ⁇ cotton mixing ⁇ cotton opening and cleaning ⁇ cotton carding ⁇ drawing ⁇ coarse yarn ⁇ spun yarn ⁇ winding ⁇ warping ⁇ sizing ⁇ drawing in ⁇ weaving and forming.
  • Acrylamide acts as an intermediate to graft the phosphorus-containing flame retardant onto the fiber surface. Therefore, as the concentration of acrylamide increases, the content of phosphorus-containing flame retardant on the fiber surface increases, which improves its flame retardancy and limiting oxygen index.
  • the acrylamide content increases to 40 wt% (Example 1, Example 6, Example 7)
  • the flame retardancy and limiting oxygen index of the fiber fabric do not further improve, mainly because the acrylamide at this content is sufficient to graft all the added phosphorus-containing flame retardant onto the fiber surface, so further increasing the acrylamide content does not contribute much to improving the flame retardancy of the fabric.
  • Example 1 The products of Example 1 and Comparative Example 1 were subjected to vertical combustion performance test and limiting oxygen index determination.
  • the fiber fabric without flame retardant treatment burned quickly after being ignited in the air, with an afterburning time of 4 seconds, and no residual carbon remained after burning.
  • the flame retardant treatment of the fiber fabric after a 30-second ignition test, there was no flame continuing to burn after the ignition source was removed, and a large amount of coke remained.
  • its limiting oxygen index has been greatly improved. After 30 water washing cycles, the limiting oxygen index can still be maintained at 39.1%, which is much higher than that of the fiber fabric without flame retardant treatment.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Mechanical Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un tissu de soins de santé à fibres Lyocell/bambou composite ignifuge et à ions négatifs. Un procédé de préparation du tissu consiste à : tout d'abord, soumettre des fibres de Lyocell à un prétraitement et à un traitement de pré-oxydation, puis à initier une copolymérisation par greffage de surface d'acrylamide sur la surface des fibres de Lyocell au moyen d'un sel de cérium ; modifier chimiquement les fibres, qui ont été soumises au traitement de modification par greffage, et phosphoryler les fibres par réaction de celles-ci avec du chlorure de diphényle hypophosphoryle, de façon à introduire un retardateur de flamme contenant du phosphore dans la surface des fibres, ce qui permet de préparer des fibres de Lyocell ignifuges ; et enfin, la réalisation d'un mélange par prise des fibres de Lyocell ignifuges en tant que fils de chaîne et de fibres de bambou à ions oxygène négatif en tant que fils de trame : réaliser un prétraitement de fibres, un mélange de coton, une ouverture et une cueillette, un cardage, un étirage, un boudinage, un filage, un bobinage, un ourdissage, un encollage, un lissage et une formation de tissage de coton. Le tissu produit présente les effets de protection environnementale, d'ignifugation et de soins de santé par ions oxygène négatifs.
PCT/CN2024/083995 2023-07-03 2024-03-27 Tissu pour soins de santé à base de lyocell/bambou composite ignifuge et à ions négatifs Pending WO2025007597A1 (fr)

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JP2025530495A JP2025539378A (ja) 2023-07-03 2024-03-27 難燃性とマイナスイオン発生特性を持つ複合リヨセル／竹繊維ヘルスケア生地

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CN202310797223.4A CN117089974A (zh) 2023-07-03 2023-07-03 一种阻燃与负氧离子复合Lyocell/竹纤维保健面料
CN202310797223.4 2023-07-03

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CN121574339A (zh) * 2026-01-29 2026-02-27 内蒙古科技大学 一种具有阻燃、高强度和可回收性的透明聚氨酯材料的制备方法

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