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Gold filament yarns
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Gold

24K Gold on filament yarns  flat
textured
airtextured
high tenacity
monofilament

Introduction
Properties
Applications
Grades
Processability
Background info
Supplier Partner

 

Introduction

Gold, whose chemical symbol is Au, is malleable, ductile, and sectile, and its high thermal and electrical conductivity as well as its resistance to oxidation make its uses innumerable. Malleability is the ability of gold and other metals to be pressed or hammered into thin sheets, 10 times as thin as a sheet of paper. These sheets are sometimes evaporated onto glass for infrared reflectivity, molded as fillings for teeth, or used as a coating or plating for parts. Gold's ability to be drawn into thin wire (ductility) enables it to be deposited onto circuits such as transistors and to be used as an industrial solder and brazing alloy. For example, gold wire is often used for integrated circuit electrical connections, for orthodontic and prosthetic appliances, and in jet engine fabrication.

Gold's one drawback for use in industry is that it is a relatively soft metal (sectile). To combat this weakness, gold is often alloyed with another member of the metal family such as silver, copper, platinum, or nickel. Gold alloys are measured by karats (carats). A karat is a unit equal to 1/24 part of pure gold in an alloy. Thus, 24 karat (24K) gold is pure gold, while 18 karat gold is 18 parts pure gold to 6 parts other metal.

 

Properties

 

 

Applications
  • ESD applications
  • Medical implants and sensing/measuring devices
    Gold has electro-conductive properties and is biocompatible. Plasma gold coated yarns are highly electrically conductive, they are skin-friendly and stable. 
  • Luxury textile products
  • Clergy apparel
  • Technical applications where the properties of gold are needed
  • Yarns for brocades 
  • Embroideries of any kind..
Grades
  • flat yarn
  • textured yarn
  • airtextured yarn
  • high tenacity
  • monofilament
 We are in a position to offer:

- Plasma 24K Gold coated filament yarns
   without Cu or Ag underlying layer 
   Plasma 24K Gold coated filament yarn

- Chemo-/Galvanical 24K Gold coated filament
   yarns with 24K Gold coated lamé twisted around
   with Ag underlying layer - available in overall Gold content of 18K,
   14K and 9K
   Chemo galvanically 24K Gold coated filament yarn with 24K Gold coated lame around it

- Cu and/or Ag pure metal gilded lamé twisted
  around cotton or silk filament yarn 
   Cu and/or Ag pure metal gilded lamé twisted around cotton or silk yarn
   lowest Gold content of all above (gilded only)

Highest quality is the first one as it does not contain any silver or copper layer underneath the Gold - consequently the known problems of Ag or Cu oxidizing through the Gold and creating dark stains do not exist.
Processability

 

 

 
Background information

Gold, recognizable by its yellowish cast, is one of the oldest metals used by humans. As far back as the Neolithic period, humans have collected gold from stream beds, and the actual mining of gold can be traced as far back as 3500 B.C., when early Egyptians (the Sumerian culture of Mesopotamia) used mined gold to craft elaborate jewelry, religious artifacts, and utensils such as goblets.

Gold's aesthetic properties combined with its physical properties have long made it a valuable metal. Throughout history, gold has often been the cause of both conflict and adventure: the destruction of both the Aztec and Inca civilizations, for instance, and the early American gold rushes to Georgia, California, and Alaska.

The largest deposit of gold can be found in South Africa in the Precambrian Witwatersrand Conglomerate. This deposit of gold ore is hundreds of miles across and more than two miles deep. It is estimated that two-thirds of the gold mined comes from South Africa. Other major producers of gold include Australia, the former Soviet Union, and the United States (Arizona, Colorado, California, Montana, Nevada, South Dakota, and Washington).

About 65 percent of processed gold is used in the arts industry, mainly to make jewelry. Besides jewelry, gold is also used in the electrical, electronic, and ceramics industries. These industrial applications have grown in recent years and now occupy an estimated 25 percent of the gold market. The remaining percentage of mined gold is used to make a type of ruby colored glass called purple of Cassius, which is applied to office building windows to reduce the heat in the summer, and to mirrors used in space and in electroscopy so that they reflect the infrared spectrum.

 
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