Fibres, filaments and yarns

Modified cross-sections

1 October 2006

Multifilament yarns with modified cross-sections that produce fabrics with high wicking, soft hand and a silklike lustrous appearance are the subject of International Patent WO 2004/074560.

Breakthrough in cellulose production

1 October 2006

Lonic liquids can be used as solvents in the production of cellulose fibres, leading to both improved process efficiency and less harm to the environment, according to the German partners that jointly

Method for making fine fibrils of polytetrafluoroethylene

1 September 2006

European Patent EP 1 574 603 describes a novel way of making polytetrafluoroethylene (PTFE) fibres.

Hydrophilic and antimicrobial polyropylene from 3M

1 August 2006

A way of making polypropylene fibres that are both hydrophilic and antimicrobial has been discovered by 3M Innovative Properties Co of St Paul, Minnesota,USA.

Tailored reinforcements for rubber

1 August 2006

Multifilament yarns of polyester that are processed especially for reinforcing rubber and the method for making them are the subjects of European Patent Application EP 1 571 243.

Method and apparatus for producing fancy yarns

1 August 2006

Japanese machinery builder KK Toyota Jidoshokki has invented a way of making fancy yarns, along with the equipment needed for the process.

Yarn's electrical resistance increases with temperature

1 July 2006

An electrically conductive core-sheath yarn in which the resistance of the sheath increases with a rise in temperature is the subject of US Patent 6 680 117.

Covered elastomeric core yarns for shrink-resistant tapes

1 July 2006

European Patent EP 1 593 763 describes a yarn and its use in making a shrink-resistant elastic tape as invented by Pioneer Elastic Fabric Ltd of Hong Kong, China.

Braided yarn for gland packing

1 July 2006

A braided yarn made from expanded graphite that is designed for the gland packing used in the shaft seal of a fluid apparatus is the subject of US Patent 6 644 007.

Fibres from carbon nanotubes

1 June 2006

A simple process for forming carbon fibres from fibrils and nanotube particles is the subject of European Patent EP 1 577 427.

Modified fibre holds electrical charge

1 June 2006

European Patent EP 1 607 518 describes a polymer fibre that can be electrically charged.

Air-jet production of composite elastic yarns

1 June 2006

A continuous method for making composite elastic yarns at speeds of up to 700 m.min-1 is disclosed in International Patent WO 2004/088014.

Stabilizing charges for electret filters

1 June 2006

US Patent 6 780 226 describes an electret filter treated with additives that it is claimed enhance the charge stability of the media.

Antimicrobial effects from nano-silver particles

1 June 2006

An antimicrobial yarn containing nano-silver particles is disclosed in US Patent 6 979 491 by CC Technology Investment of Hong Kong.

Process that can make continuous filament nanofibres

1 May 2006

A process that is based on spinning a polymer dope and is capable of making continuous filament nanofibres is the subject of International Patent WO 2004/074559.

Electrostatic field and coagulation combine to produce nanofibres

1 May 2006

Researchers at the Politechnika Lodzka in Lodz, Poland, have patented a method for producing nanofibres.

Spectra knits make prosthetic limbs comfortable and durable

1 May 2006

US manufacturer of knitted orthotic and prosthetic items Comfort Products is using Honeywell's high-performance Spectra fibre in its SpectraCarb, a Spectra/carbon composite, for orthotic and prostheti

Modified cross-section for carpet fibre

1 May 2006

A refinement to the fibres used for carpet pile, one that has potential in other furnishing applications, is the subject of US Patent 6 673 450.

Polyphenylene sulphide high-tenacity multifilament yarn

1 May 2006

Diolen Industrial Fibers bv of Arnhem,The Netherlands says it is now making sample quantities of a multifilament yarns based on polyphenylene sulphide (PPS).

Conductive yarn sheath has positive temperature coefficient of resistivity

1 May 2006

Milliken Co has patented a type of electrically conductive yarn that consists of a core, a sheath and an insulator.

Impact protection becomes flexible, lightweight and breathable

1 May 2006

Announced at the Techtextil Symposium North America,Dow Corning has developed a technology that offers garment makers the opportunity to include impact resistance that is comfortable to wear and easy

Diolen reveals a continuous filament polyphenylene sulphide

1 May 2006

Diolen Industrial Fibers tells Editor Nick Butler that reorganizing its research and development to be more closely aligned with its production facilities,where it has many years of experience in melt

Biodegradable bicomponent fibre with improved properties

1 April 2006

A biodegradable hydrophilic bicomponent binder fibre has been developed by Kimberly-Clark.

Twisting yarns with controlled profiles

1 April 2006

An apparatus for producing a twisted yarn forms the subject of International Patent WO 2004/044290.

Energy-saving production for fibres from wood chip

1 April 2006

Finnish researchers have been investigating how to reduce the amount of energy needed in the production of fibres from wood chip.

Soft magnetic alloy for recording security information

1 February 2006

A fibre made from a soft magnetic alloy, a method of making the fibre and an article made from the fibres for recording information are the subjects of US Patent 6 869 700.

Conductive filaments

1 January 2006

Based on a variation of bicomponent fibres, Teijin Monofilament Germany GmbH has developed a novel, electrically conductive monofilament.

Light-dispersing fibre

1 January 2006

Small, closed cells introduced in polymers structures scatter light and result in an enhanced whitening effect and, to a degree, greater opacity, according to US Patent 6 846 562.

Sub-micron powders make solutionspun cellulosics with low friction

1 December 2005

Adding a powder of polytetrafluoroethylene (PTFE) to the fibre-forming substance helps to create solutionspun cellulosics with a number of desirable properties, according to a US company.

Cellulosics to reinforce cement

1 December 2005

An Australian company claims to have found a way to exploit cellulosic fibres as reinforcements for cement.

Man-made cellulosic fibres with enhanced absorption properties

1 November 2005

Absorbent hygiene products rely on the high absorbency of cellulosic fibres.

Melt spinning of natural starch with biodegradable polymers

1 November 2005

Environmentally degradable, finely attenuated fibres are disclosed in US Patent 6 890 872 by Procter & Gamble.

Starch-modified fibres

1 November 2005

In its continuing search for economical biodegradable fibres for use in disposable products such as napkins, Procter & Gamble Co has developed a finely attenuated melt-spun fibre comprising so-cal

High-tenacity polyethylene

1 September 2005

A way of making high-tenacity polyethylene yarns has been revealed by the Korean company Hyosung Corp.

Spinneret design introduces crimp in homofilaments

1 August 2005

A dual capillary spinneret featuring different shapes induces differential fibre morphology to produce crimping in homofilaments, according to its inventor, Kimberly-Clark Worldwide of Neenah,Wisconsi

Silica yarns show improved thermal resistance

1 August 2005

In US Patent 6 841 242, Saint-Gobain Quartz SAS of Courbevoie, France, provides a recipe for a silica yarn with an improved resistance to high temperatures.

Antimicrobial bedding and reusable underlays in Trevira Bioactive

1 July 2005

Following the introduction of hand towels and bathrobes in antimicrobial qualities using Trevira Bioactive polyester fibre, a leading terry towelling manufacturer is now supplying antimicrobial beddin

Splittable, multicomponent polyester

1 July 2005

Mechanically divisible fibres having at least one component including poly(lactide acid) and at least a second of aromatic polyester are the subject of US Patent 6 780 357.

Process makes microfibres with rectangular cross-sections

1 June 2005

A mechanical process for creating microfibres is the subject of International Patent WO 00/46435.

Trevira filament yarns used in highly elastic medical textiles

1 June 2005

Polyester fibre specialist Trevira will feature new filament yarns for medical applications at this month's Techtextil trade fair in Frankfurt am Main,Germany (7-9 June 2005).

Amicor helps prevent the spread of bacteria on fabrics

1 June 2005

A study by the UK's Nottingham Trent University has revealed that Amicor fibres could help fight the spread of the "superbug", methicillin-resistant Staphylococcus aureus (MRSA), which is responsible

Viscose specialities introduced for nonwoven applications

1 June 2005

Kelheim Fibres introduced two new viscose fibres for nonwoven applications at the Index 05 exhibition held in April 2005 in Geneva, Switzerland.

Viscose specialities introduced for nonwoven applications

1 June 2005

Kelheim Fibres introduced two new viscose fibres for nonwoven applications at the Index 05 exhibition held in April 2005 in Geneva, Switzerland.

Tougher polylactic acid fibres

1 June 2005

Japan's Toray Industries Inc claims it has developed a polylactic acid (PLA) fibre that is stronger than its rivals at high temperatures.

Low denier and extensible fibres

1 June 2005

International Patent WO 03/052179 discloses a method of making low denier, highly extensible fibres, as well as soft, extensible nonwoven webs based on them.

Fibrillation makes flax better for composite reinforcement

1 May 2005

A US-based inventor claims a decorticated bast fibre, such as from flax, is particularly suitable as a reinforcement for a range of polymer-based composites and that he has found a way to overcome pre

Warp-knitting technique used to make chenille yarns

1 May 2005

A US-based inventor has proposed a novel way of making chenille yarns.

Simple route to hydrophilic and antimicrobial polypropylene

1 May 2005

Adding an amount of C8 to C12 fatty acid monoglyceride to polypropylene as a melt additive produces meltextruded fibres that are both hydrophilic and antimicrobial, according to 3M.

Needlepunched yarns shed less lint

1 April 2005

A system for treating yarns that makes them less likely to unravel or shed lint is disclosed in US Patent 6 796 115.

Refining vortex spinning

1 April 2005

Germany's W. Schlafhorst AG continues its research into vortex spinning and, in US Patent 6 792 744,now proposes a system for converting a drawn sliver into a yarn by means of airflow.

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