WO2008086570A1 - Materiau semi-synthetique - Google Patents

Materiau semi-synthetique Download PDF

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Publication number
WO2008086570A1
WO2008086570A1 PCT/AU2008/000051 AU2008000051W WO2008086570A1 WO 2008086570 A1 WO2008086570 A1 WO 2008086570A1 AU 2008000051 W AU2008000051 W AU 2008000051W WO 2008086570 A1 WO2008086570 A1 WO 2008086570A1
Authority
WO
WIPO (PCT)
Prior art keywords
natural fibre
semi
particles
powder
synthetic material
Prior art date
Application number
PCT/AU2008/000051
Other languages
English (en)
Inventor
Christopher James Hurren
Peter Rex Brady
Xushan Gao
Huimin Wang
Xungai Wang
Weilin Xu
Original Assignee
Deakin University
Australian Wool Innovation Limited
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
Priority claimed from AU2007900277A external-priority patent/AU2007900277A0/en
Application filed by Deakin University, Australian Wool Innovation Limited filed Critical Deakin University
Priority to AU2008207284A priority Critical patent/AU2008207284A1/en
Publication of WO2008086570A1 publication Critical patent/WO2008086570A1/fr

Links

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
    • D01F1/10—Other agents for modifying properties

Definitions

  • the present invention relates to a modified ultra-fine natural fibre powder and to a process for the preparation of the modified ultra-fine natural fibre powder.
  • the present invention also relates to a semi-synthetic material, in particular a semi-synthetic fibre or filament.
  • the present invention further relates to a method of preparing a semi-synthetic material.
  • wool Unlike manufactured fibres, wool, for example, has a complex crystal structure in which the protein molecules are the building blocks in a structure derived from the growth of specialised follicle cells in the skin of sheep.
  • Each fibre consists of a core of spindle-shaped cortical cells enclosed by flattened cuticle cells.
  • the cortical cells are the major structural component and make up more than 95% of the fibre mass.
  • Each cortical cell is about 100 microns long and 5- 7 microns wide.
  • Cortical cells are composed of about 20 macrofibhllar bundles of microfibrils aligned approximately parallel with the axis of the cortical cells and embedded in a matrix of amorphous protein.
  • Each microfibril is made up of a bundle of about 7 rod-like intermediate filaments which are about 2 nm in diameter.
  • each intermediate filament is composed of four left-handed coils each containing two right-handed polypeptide ⁇ -helices.
  • the various fibrillar components vary in size from the nanometre to micrometre scale in diameter.
  • a modified ultra-fine natural fibre powder for use in a melt forming process for the preparation of a semi-synthetic material including said ultra-fine natural fibre powder and a synthetic polymer component, the powder including particles of a natural fibre modified to improve the heat stability of the natural fibre powder particles during said melt forming process.
  • a semi-synthetic material formed by a melt forming process, the material including
  • a modified ultra-fine natural fibre powder including particles of a natural fibre modified to improve the heat stability of the natural fibre powder particle during the melt forming process.
  • the semi-synthetic material is a semi-synthetic fibre or filament.
  • a modified ultra-fine natural fibre powder including particles of a natural fibre modified with a stabilizing agent to improve the heat stability of the natural fibre powder particles; • blending the components;
  • the particles of natural fibre are modified with a stabilizing agent, more preferably a heat stability coating.
  • a stabilizing agent more preferably a heat stability coating.
  • a polymeric heat stability coating for example, a polymeric sterically hindered phenol coating, is preferred.
  • FIGS 1A, B and C illustrate wool powders dyed with (A) Lanasol Blue CE,
  • Figure 2 illustrates knitted polymer yarns dyed at 100 0 C with Lanaset Navy R.
  • semi-synthetic materials e.g. fibres or filaments
  • the semi-synthetic materials obtained may exhibit good dyeability and antistatic properties.
  • the excessive lustre of conventional man- made filaments may be reduced.
  • One or more of advantages of manufactured fibres for example strength, dimensional stability, as well as good wash and good wear properties, may be preserved.
  • the properties of the semisynthetic materials according to the present invention may combine one or more desirable characteristics from both natural and manufactured fibres.
  • the excessive lustre appearing on conventional synthetic filaments may be reduced when the proportion of the natural fibre powders is about 0.5% by weight.
  • the present invention provides a modified ultra-fine natural fibre powder for use in a melt forming process for the preparation of a semi- synthetic material including said ultra-fine natural fibre powder and a synthetic polymer component, the powder including particles of a natural fibre modified to improve the heat stability of the natural fibre powder particles during said melt forming process.
  • natural fibre refers to proteinaceous fibre material of animal origin.
  • the particles of natural fibre may be modified with a stabilizing agent to improve the heat stability of the natural fibre.
  • a stabilizing agent may be included.
  • the particles of natural fibre may bear a heat stability coating.
  • the heat stability coating protects the natural fibre particles from heat degradation at the melting temperature of the synthetic polymer component.
  • the modified ultra-fine natural fibre powder may be resistant to temperature degradation up to a temperature of approximately 230 0 C, more preferably up to approximately 195°C.
  • the heat stability coating may be of any suitable type.
  • a polymeric coating such as a polymeric sterically hindered phenol (PSHP) coating may be used as the stabilizing agent.
  • PSHP polymeric sterically hindered phenol
  • An example of a PSHP is
  • the polymeric coating may include one or more suitable polymers.
  • suitable polymers such as polyethylene glycol (PEG).
  • PEG polyethylene glycol
  • the present invention provides a semi-synthetic material formed by a melt forming process, the material including
  • a modified ultra-fine natural fibre powder including particles of a natural fibre modified to improve the heat stability of the natural fibre powder particle during the melt forming process.
  • the synthetic polymer component used in the invention may be of any suitable type.
  • the synthetic polymer component includes at least one thermoplastic polymer.
  • a polyolefin such as polyethylene (PE) or polypropylene (PP) may be used.
  • An acrylic polymer such as polyacrylonithle (PAN) may be used.
  • a polyamide for example Nylon 6 or Nylon 66, or a polyester such as polyethyleneterephthalate (PET) may be used.
  • the synthetic polymer component may be present in amounts of from approximately 90 to 99.5% by weight, preferably approximately 95 to 99% by weight, based on the total weight of the semi-synthetic material.
  • a mixture of polymers may be included in the synthetic polymer component.
  • the semi-synthetic material of the invention also includes a modified ultra-fine natural fibre powder as described herein.
  • the particles of the ultra-fine natural fibre powder may be produced from any suitable animal source.
  • An animal fibre, or mixtures thereof, may be used.
  • An animal fibre such as wool or hair obtained from animals such as sheep, goats, llamas, alpacas, rabbits etc, is preferred.
  • a sheep wool, mohair or alpaca, or mixtures thereof, may be used.
  • the modified ultra-fine natural fibre powder may include particles of natural fibre of any suitable size and shape.
  • the ultra-fine natural fibre powder may include particles having mean diameters in the range of from approximately 5 nm to 10 ⁇ m, preferably approximately 1 to 7 ⁇ m, more preferably approximately 2.5 to 5 ⁇ m, and even more preferably approximately 2 to 5 ⁇ m.
  • the powder particles preferably have a length of no greater than approximately 250 ⁇ m, more preferably not greater than 200 ⁇ m, most preferably not greater than approximately 100 ⁇ m.
  • the modified ultra-fine natural fibre powder component may be present in amounts of from approximately 20 to 0.25% by weight, preferably approximately 10 to 0.5% by weight, more preferably approximately 5 to 0.5% by weight, based on the total weight of the semi-synthetic material.
  • the particles of the ultra-fine natural fibre powder may be formed utilising any suitable technique.
  • the ultra-fine natural fibre powder may be formed utilising chemical, enzymatic or mechanical processes or combinations thereof.
  • the technique disclosed in Xu, Weilin et al., Powder Technology (2004) 140 (1 -2), pp136-140, provides a suitable technique for the preparation of the ultra-fine natural fibre material and is incorporated herein by reference.
  • an advantage of the semi-synthetic material according to this aspect of the present invention is its ability to take up dyes.
  • the semi-synthetic material according to the present invention may further include a dye component.
  • the semi-synthetic material may be dyed with any conventional dyes by any method suitable for dyeing natural fibres which would be known to a person skilled in the art. For example, conventional wool dyes may be used. Dyeing may, for example, be conducted at temperatures in the range of approximately 100 0 C to 130 0 C.
  • dyes such as Lanasol, Lanset or Solar dyes, e.g. Lanasol Blue CE, Lanset Navy R and Solar Blue 3GLN may be used.
  • the modified ultra-fine natural fibre powder may be dyed before incorporation in the semi-synthetic material with any of the appropriate dyes which would be known to a person skilled in the art.
  • dyes such as Lanasol, Lanset or Solar dyes, e.g. Lanasol Blue CE, Lanset Navy R and Solar Blue 3GLN may be used.
  • Dyeing may conducted under any appropriate conditions and may, for example, be conducted at room temperature.
  • the particles of the natural fibre powder may be dyed before or after undergoing modification to improve heat stability.
  • a synthetic polymer component (i) a synthetic polymer component; and (ii) a modified ultra-fine natural fibre powder including particles of a natural fibre modified with a stabilizing agent to improve the heat stability of the natural fibre powder particles; • blending the components; and • subjecting the blended components to a material formation step using a melt forming process.
  • the modified ultra-fine natural fibre powder may be blended with the synthetic polymer component using any conventional blending process.
  • An example of a suitable blending process involves mixing the modified natural fibre powder and the synthetic polymer component together.
  • the material formation step used to form the semi-synthetic material may be carried out using any melt forming process.
  • a preferred melt forming process is an extrusion process.
  • the material formation step is a fibre or filament formation step.
  • the fibre or filament formation step may be of any suitable type.
  • a spinning step e.g. a melt spinning step, may be used.
  • the semi-synthetic material may instead be formed as a sheet or film.
  • the modified ultra-fine powder may be added to the molten synthetic polymer and thoroughly combined before the molten liquid is forced through a spinneret to form continuous filaments.
  • the modified ultra-fine natural fibre powders may be incorporated into the synthetic filaments with various distribution patterns depending on the type of extrusion head employed. For example, uniform distribution of the modified ultra-fine powders throughout a fibre or filament may be achieved by a normal extrusion head. Alternatively, the modified ultra-fine powders may be distributed solely in the surface of the fibre or filament by using sheath-core bi- component spinning or solely on one side of the fibre or filament using side-by- side bi-component spinning.
  • the material formation step is typically conducted at an elevated temperature that is sufficient to melt the synthetic polymer component. In a preferred embodiment, the material formation step may be conducted at temperatures of approximately 50 0 C to 230 0 C, depending on the synthetic polymer(s) selected. Conventionally, where elevated temperatures, for example, up to approximately 230°C are used, the natural fibre particles may exhibit some degradation over time due to denaturation of the fibre's protein structure.
  • modification of the ultra-fine natural fibre powder in accordance with the invention helps to stabilize the particles of the natural fibre powder upon exposure to heat.
  • a method for the preparation of a semi-synthetic fibre or filament which method includes • providing:
  • the synthetic polymer component may include any suitable polymer.
  • the synthetic polymer component includes at least one thermoplastic polymer.
  • the synthetic polymer component may include a polyolefin (e.g. PP), an acrylic polymer (e.g. PAN), a polyamide such as nylon (e.g. PA6) or a polyester (e.g. PET), or mixtures thereof.
  • the melt spinning step used for the formation of the semi-synthetic fibre or filament may be conducted in a conventional melt extrusion machine at any suitable temperature.
  • the melt spinning step is conducted at a temperature up to 230 0 C but preferably below 200°C.
  • the spinnability and other processing properties of the blend may be similar to using the pure PP, low melting point PA6, or low melting point PET.
  • the ultra-fine natural fibre powder may be formed from animal fibres as described herein.
  • Preferred animal fibres may include wool, mohair, alpaca or mixtures thereof.
  • the stabilizing agent may be any suitable agent capable of improving the heat stability of the natural fibre powder.
  • the stabilizing agent may be a heat stability coating.
  • the heat stability coating may be of any suitable type.
  • a polymeric coating such as a coating including a polymeric stehcally hindered phenol (PSHP)
  • PSHP polymeric stehcally hindered phenol
  • An example of a PSHP is Lowinox® CPL.
  • the polymeric coating may include one or more suitable polymers to modify the natural fibre powder for improved heat stability.
  • one or more stabilizing agents may be used.
  • the ultra-fine natural fibre powder may be mixed with the stabilizing agent using any technique and for any time sufficient to couple the stabilizing agent to the particles of the natural fibre and thereby form a modified ultra-fine natural fibre powder.
  • the stabilizing agent may first be dissolved or dispersed in a solvent and the resultant solution mixed with the ultra-fine natural fibre powder.
  • Other techniques for example, ultrasonication, may also be employed to assist the coupling of the stabilizing agent to the natural fibre powder.
  • Chips containing polypropylene were blended with ground wool powder (WP) prior to fibre extrusion.
  • WP ground wool powder
  • Three amounts of powder were separately dyed blue, red and black using Lanaset dyes. Undyed powder was used as a control.
  • the dyeing was carried out by wetting out wool powder (WP) in an aqueous solution containing 10% by weight of dye on the weight of powder, at a liquor ratio of 70:1.
  • the pH was adjusted using 3% acetic acid and the solution was agitated for one hour.
  • the powder was then filtered off, dried and ground in a rotary knife mill.
  • SA samples were first mixed with a Stabilizing Agent (SA) (Lowinox® CPL) in the ratio WP:SA of 1 :0.22 to improve the heat stability of the WP.
  • SA Stabilizing Agent
  • the SA was first dissolved in ethanol (AR), then the WP was added and the resultant slurry was mixed well and given an ultra-sonic treatment for from 20 to 105 minutes.
  • the slurry was allowed to dry naturally, and the cake obtained was ground and passed through a 100 mesh sieve.
  • the ratio of (WP+SA):PEG was 1 :0.45.
  • the filaments were stretched at a ratio of 2.2:1 using the filament drawing machine, with the temperatures set at 60°C - 70 0 C - 90°C (from the feeder roller to the front roller).
  • Single filaments produced in the experiments described above were measured for linear density, tenacity and elongation at break. Linear density was measured using the traditional cutting and weighing method.
  • Tenacity and breaking elongation were measured with a SIFAN instrument using a gauge length of 25.4 mm and a motor speed of 500 mm/min. More than 40 tests were carried out on each sample. The results are shown in Table 2.
  • the dyebath was prepared at 50 0 C, the temperature raised at 2°C/min to 100 0 C and held at this temperature for 30 minutes.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

L'invention concerne une poudre de fibre naturelle ultra-fine modifiée, destinée à être utilisée dans un processus de formation par fusion dans la préparation d'un matériau semi-synthétique. La poudre selon l'invention contient des particules d'une fibre naturelle modifiée pour améliorer la stabilité thermique des particules de poudre pendant le processus de formation par fusion. L'invention concerne également un matériau semi-synthétique contenant une poudre de fibre naturelle ultra-fine modifiée et un composant polymère synthétique.
PCT/AU2008/000051 2007-01-17 2008-01-17 Materiau semi-synthetique WO2008086570A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2008207284A AU2008207284A1 (en) 2007-01-17 2008-01-17 Semi-synthetic material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007900277 2007-01-17
AU2007900277A AU2007900277A0 (en) 2007-01-17 Semi-synthetic material

Publications (1)

Publication Number Publication Date
WO2008086570A1 true WO2008086570A1 (fr) 2008-07-24

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AU (1) AU2008207284A1 (fr)
WO (1) WO2008086570A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150258A1 (fr) * 2012-04-02 2013-10-10 Heriot Watt University Procédé de production d'une fibre comprenant des nanoparticules de fibres naturelles
WO2017183009A3 (fr) * 2016-04-22 2018-03-01 Centitvc- Centro De Nanotecnologia E Materiais Técnicos, Funcionais E Inteligentes Fibre synthétique textile extrudée pouvant être teinte, procédés associés et utilisations associées
CN110241501A (zh) * 2019-05-27 2019-09-17 安徽翰林纺织有限公司 一种亲水性超仿棉涤纶纤维面料
WO2019193527A1 (fr) * 2018-04-06 2019-10-10 Bjv Research, S. R. O. Fibre synthétique avec ajout de matière naturelle et son procédé de production
WO2020026161A1 (fr) * 2018-07-31 2020-02-06 Wool Research Organisation Of New Zealand Incorporated Compositions de kératine

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH03213507A (ja) * 1990-01-18 1991-09-18 Descente Ltd 繊維粉体を混練した合成樹脂繊維及び合成樹脂シート素材
WO1999034963A1 (fr) * 1998-01-07 1999-07-15 Clausi Robert N Moulage de fibres lignocellulosiques finement pulverisees en materiaux de haute densite
US5973035A (en) * 1997-10-31 1999-10-26 Xyleco, Inc. Cellulosic fiber composites
JP2003171837A (ja) * 2001-12-10 2003-06-20 Kuraray Co Ltd 混紡糸
WO2006049972A1 (fr) * 2004-10-27 2006-05-11 Thomas P Frank Materiau composite a couleur stabilisee

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03213507A (ja) * 1990-01-18 1991-09-18 Descente Ltd 繊維粉体を混練した合成樹脂繊維及び合成樹脂シート素材
US5973035A (en) * 1997-10-31 1999-10-26 Xyleco, Inc. Cellulosic fiber composites
WO1999034963A1 (fr) * 1998-01-07 1999-07-15 Clausi Robert N Moulage de fibres lignocellulosiques finement pulverisees en materiaux de haute densite
JP2003171837A (ja) * 2001-12-10 2003-06-20 Kuraray Co Ltd 混紡糸
WO2006049972A1 (fr) * 2004-10-27 2006-05-11 Thomas P Frank Materiau composite a couleur stabilisee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150258A1 (fr) * 2012-04-02 2013-10-10 Heriot Watt University Procédé de production d'une fibre comprenant des nanoparticules de fibres naturelles
CN104334776A (zh) * 2012-04-02 2015-02-04 赫瑞瓦特大学 用于制造包含天然纤维纳米颗粒的纤维的方法
US20150065686A1 (en) * 2012-04-02 2015-03-05 Heriot Watt University Method for making a fibre comprising natural fibre nanoparticles
WO2017183009A3 (fr) * 2016-04-22 2018-03-01 Centitvc- Centro De Nanotecnologia E Materiais Técnicos, Funcionais E Inteligentes Fibre synthétique textile extrudée pouvant être teinte, procédés associés et utilisations associées
WO2019193527A1 (fr) * 2018-04-06 2019-10-10 Bjv Research, S. R. O. Fibre synthétique avec ajout de matière naturelle et son procédé de production
CN112218978A (zh) * 2018-04-06 2021-01-12 Bjv研究有限责任公司 添加天然材料的合成纤维及其制备方法
US20210040647A1 (en) * 2018-04-06 2021-02-11 BJV Research, S.R.O. Synthetic fiber with addition of natural material and method of its production
JP2021520457A (ja) * 2018-04-06 2021-08-19 ビージェイブイ リサーチ エス．アール．オー． 天然材料を添加した合成繊維、及びその製造方法
AU2019247891B2 (en) * 2018-04-06 2023-09-14 Bjv Research, S. R. O. Synthetic fiber with addition of natural material and method of its production
WO2020026161A1 (fr) * 2018-07-31 2020-02-06 Wool Research Organisation Of New Zealand Incorporated Compositions de kératine
CN112969448A (zh) * 2018-07-31 2021-06-15 新西兰羊毛研究组织 角蛋白组合物
CN110241501A (zh) * 2019-05-27 2019-09-17 安徽翰林纺织有限公司 一种亲水性超仿棉涤纶纤维面料

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