WO2024141717A2 - Monofilament fibreux, son procédé de fabrication et matériau fibreux - Google Patents

Monofilament fibreux, son procédé de fabrication et matériau fibreux Download PDF

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Publication number
WO2024141717A2
WO2024141717A2 PCT/FI2023/050742 FI2023050742W WO2024141717A2 WO 2024141717 A2 WO2024141717 A2 WO 2024141717A2 FI 2023050742 W FI2023050742 W FI 2023050742W WO 2024141717 A2 WO2024141717 A2 WO 2024141717A2
Authority
WO
WIPO (PCT)
Prior art keywords
fibrous
agent
monofilament
fibrous monofilament
mfc
Prior art date
Application number
PCT/FI2023/050742
Other languages
English (en)
Other versions
WO2024141717A3 (fr
Inventor
Pia Vento
Maiju PÖYSTI
Original Assignee
Spinnova Oyj
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 Spinnova Oyj filed Critical Spinnova Oyj
Publication of WO2024141717A2 publication Critical patent/WO2024141717A2/fr
Publication of WO2024141717A3 publication Critical patent/WO2024141717A3/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/10—Crosslinking of cellulose
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof

Definitions

  • a fibrous monofilament a method of manufacturing thereof, and a fibrous material
  • This specification relates to a fibrous monofilament, products comprising the same as well as to a method of manufacturing the fibrous monofilament. Particularly, the specification relates to a fibrous monofilament with lowered water absorptivity and improved softness after several washing and drying cycles.
  • a sustainable fibrous monofilament with lowered water absorptivity for use e.g. in textile applications is provided.
  • the fibrous monofilament disclosed herein can be used to replace at least partly the nowadays used petroleum-based synthetic materials.
  • the disclosed fibrous monofilament enables replacing unsustainable cotton.
  • the production process of the fibrous monofilament disclosed herein is an environmentally friendly one, utilizing mild conditions and not employing any harmful substances. This is a significant benefit when compared to other cellulose-based fibers, such as viscose and Lyocell.
  • the disclosed fibrous monofilament has lowered water absorptivity and improved softness after several washing and drying cycles.
  • a fibrous monofilament is provided.
  • the fibrous monofilament comprises at least 50 wt.% of non-regenerated microfibrillar cellulose (MFC), a dispersing agent, at least one of the following: a natural wax, a thermoplast, a sizing agent, natural rubber; and a crosslinking agent.
  • MFC non-regenerated microfibrillar cellulose
  • a method of manufacturing a fibrous monofilament comprises forming an aqueous suspension comprising from 90 to 96 wt.% of water, and from 4 to 10 wt.% of dry matter including non-regenerated microfibrillar cellulose (MFC), dispersing agent, at least one of the following: a natural wax, a thermoplast, a sizing agent, natural rubber as water-based emulsion/dispersion; and a crosslinking agent, the dry matter comprising at least 50 wt.% of non-regenerated MFC.
  • MFC microfibrillar cellulose
  • the method further comprises extruding the suspension into a monofilament and drying the monofilament.
  • a fibrous material comprises the fibrous monofilament as described above.
  • Plant materials are built up by a matrix formed by cellulose fibers also containing lignin and hemicelluloses.
  • the cellulosic fibers that form such a matrix are fibril bundles which in turn consist of microfibrils.
  • the cellulose fibers are separated into a three-dimensional network of microfibrils with a large surface area.
  • These entangled fibrils are called microfibrillar cellulose (MFC).
  • the width of entangled fibrils in MFC may be from 50 nanometers to 2 micrometers and length or longitudinal dimension may be from 100 nanometers to 500 micrometers, such as from 100 nanometers to 200 micrometers.
  • non-regenerated cellulose or “natural cellulose” refer to cellulose or cellulose fibrils or fibers that have not undergone chemical or physical modification of their macromolecular structure.
  • Nonregenerated MFC as discussed herein is substantially non-regenerated and consists mainly of crystalline structure of cellulose I.
  • Cellulose I may have structures l a and Ip.
  • Man-made cellulosic fibers commonly used in textile applications are regenerated and their crystalline structure is mainly other than cellulose I. Conversion of cellulose I to cellulose II (or other forms, like cellulose III or cellulose IV) is irreversible. Thus, these forms are stable and cannot be converted back to cellulose I.
  • cellulose may originate from any plant-based material.
  • Plant-based raw material may be wood material or non-wood material.
  • the wood material can be based on softwood tree, such as spruce, pine, fir, larch, Douglas-fir or hemlock, or on hardwood tree, such as birch, aspen, poplar, alder, eucalyptus or acacia, or on any mixture of above.
  • the non-wood material may be as cotton, hemp, flax, sisal, jute, kenaf, bamboo, peat, or coconut.
  • the fibrous monofilament disclosed herein can be used to replace at least partly the nowadays used petroleum-based synthetic materials for example in insulation materials used in textile industry. Further, the disclosed fibrous monofilament enables replacing unsustainable cotton. Still further, the fibrous monofilament disclosed herein is produced in a more environmentally friendly manner when compared to other cellulose-based fibers, such as viscose and Lyocell. The disclosed fibrous monofilament has lowered water absorptivity and improved softness after several washing and drying cycles.
  • the fibrous monofilament according to this disclosure comprises or consists of non-regenerated microfibrillar cellulose (MFC), a dispersing agent, a crosslinking agent, and at least one of the following: a natural wax, a thermoplast, a sizing agent and natural rubber.
  • MFC microfibrillar cellulose
  • the dispersing agent, the natural wax, the thermoplast, the sizing agent, the natural rubber and/or the crosslinking agent is/are biobased and/or biodegradable.
  • the biodegradability of the fibrous monofilament and the materials prepared therefrom may be improved.
  • Biodegradability of a material means that greater than 90 % of the original material is converted into CO2, water and minerals by biological processes within 6 months.
  • the dispersing agent may be any of the following: hydroxyethyl cellulose (HEC), ethyl hydroxyethyl cellulose (EHEC), methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), methyl ethyl hydroxyethyl cellulose (MEHEC), hydroxypropyl cellulose (HPC), ethyl cellulose (EC) and starch, or any combination thereof.
  • Dispersing agent may also have an effect on shear strength of the fibrous monofilament.
  • aPAM may also function as a rheology modifier.
  • the MFC fibrils show extensive hydrogen bonding arising from the presence of surface hydroxyl groups. However, these hydroxyl groups also efficiently bind water molecules, thereby increasing moisture sensitivity and lowering wet strength of the materials comprising MFC.
  • certain degree of hydrophobicity may be added by incorporating a hydrophobic component.
  • the hydrophobicity is introduced with at least one of a natural wax, a thermoplast a sizing agent, and natural rubber.
  • Thermoplast or thermoplastic refers to a polymeric material that becomes pliable or moldable at a certain elevated temperature and solidifies upon cooling.
  • Waxes include a diverse class of lipophilic organic compounds that are malleable solids near ambient temperatures. Waxes include higher alkanes and lipids, typically with melting points above about 40 degrees C. Waxes melt to give low viscosity liquids. Natural waxes refer to waxes produced by plants or animals. Natural waxes also include modified plant and animal waxes.
  • sizing agents suitable for the fibrous monofilament disclosed herein is an alkyl ketene dimer (AKD). Besides lowering the water absorption properties of the fibrous monofilament, AKD may further increase strength of the fibrous monofilament.
  • alkyl ketene dimer Besides lowering the water absorption properties of the fibrous monofilament, AKD may further increase strength of the fibrous monofilament.
  • suitable natural waxes for the fibrous monofilament disclosed herein include for example beeswax, carnauba wax and rice bran wax.
  • the hydrophobicity introduced with at least one of a natural wax, a thermoplast a sizing agent, and natural rubber has the effect of decreasing intermolecular and intramolecular hydrogen bonding of MFC, thereby providing water repellency as well as enabling maintenance of soft and fluffy appearance of the fibrous monofilament when dried after wetting.
  • the fibrous monofilament comprises a crosslinking agent, for example a wet strength agent.
  • the amount of the crosslinking agent is from 1 to 6 wt.%, such as from 2 to 5 wt.% of the dry weight of the fibrous monofilament.
  • the crosslinking agent is a polyamidoamine-epichlorohydrin (PAE) resin.
  • PAE provides improved wet strength properties such as wet tenacity and elongation to the fibrous monofilament. PAE may also prevent shrinkage and improve wet abrasion resistance.
  • the fibrous monofilament further comprises an amino-functional component, such as chitosan.
  • the amino-functional component refers to a (polymer) component having free amino group(s).
  • Chitosan is a linear polysaccharide composed of randomly distributed 0- (1 — >4)-linked D-glucosamine (deacetylated unit) and /V-acetyl-D-glucosamine (acetylated unit). Chitosan is produced commercially by deacetylation of chitin, which is a structural element in the exoskeleton of crustaceans and cell walls of fungi. Degree of deacetylation (%DD) in commercial chitosan ranges from 60 to 100 %.
  • the hydrophobic surface finishing agent may be a fluorine-free agent, such as a silicone-based agent or a long-chain hydrocarbon.
  • long-chain hydrocarbon refers to a hydrocarbon having at least 10 carbon atoms.
  • the hydrophobic surface finishing agent may be biobased and/or biodegradable.
  • the fibrous monofilament comprises at least 50 wt.% of non-regenerated microfibrillar cellulose, CMC as a dispersing agent, PAE resin as a crosslinking agent and AKD.
  • the fibrous monofilament may comprise additional polymeric additive(s).
  • the fibrous monofilament may comprise a plasticizer.
  • the plasticizer may be for example polyethylene oxide (PEO).
  • the fibrous monofilament according to this disclosure may have a density of between 500 and 2000 kg/m 3 , for example between 1000 and 1700 kg/m 3 , such as about 1500 kg/m 3 .
  • the fibrous materials may be manufactured by using any methods known in the art.
  • the fibrous monofilaments may be processed to fluffy spherical material clusters.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)

Abstract

L'invention propose un monofilament fibreux à capacité d'absorption d'eau réduite destiné à être utilisé, par exemple, dans des applications textiles. Le monofilament fibreux comprend au moins 50 % en poids de cellulose microfibrillaire non régénérée (MFC), un agent dispersant, au moins l'un des éléments suivants : une cire naturelle, un thermoplastique, un agent de collage, un caoutchouc naturel ; et un agent de réticulation. L'invention propose en outre un matériau fibreux le comprenant ainsi qu'un procédé de fabrication du monofilament fibreux.
PCT/FI2023/050742 2022-12-29 2023-12-27 Monofilament fibreux, son procédé de fabrication et matériau fibreux WO2024141717A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20226181 2022-12-29
FI20226181A FI20226181A1 (en) 2022-12-29 2022-12-29 Fiber monofilament, its production method and fiber material

Publications (2)

Publication Number Publication Date
WO2024141717A2 true WO2024141717A2 (fr) 2024-07-04
WO2024141717A3 WO2024141717A3 (fr) 2024-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2023/050742 WO2024141717A2 (fr) 2022-12-29 2023-12-27 Monofilament fibreux, son procédé de fabrication et matériau fibreux

Country Status (2)

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FI (1) FI20226181A1 (fr)
WO (1) WO2024141717A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6727022B2 (ja) * 2015-04-27 2020-07-22 ダイワボウホールディングス株式会社 機能材含有再生セルロース繊維、その製造方法及びそれを含む繊維構造物
CN110168152B (zh) * 2016-12-23 2022-07-26 斯宾诺华公司 纤维状单丝
CN108251903A (zh) * 2018-03-08 2018-07-06 唐卫兵 一种超疏水性纤维素纳米纤维纺丝液的制备方法

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WO2024141717A3 (fr) 2024-08-29
FI20226181A1 (en) 2024-06-30

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