Polyester Converters Ltd, Polyester Films
Polyester Converters Ltd, Polyester Films
Polyester Converters Ltd, Polyester Films Polyester Converters Ltd, Polyester Films Polyester Converters Ltd, Polyester Films
Polyester Converters Ltd, Polyester Films
  Applications and End Uses  
  Technical Data
and Specs
  Trade Services  
Polyester Converters Ltd, Polyester Films
  Enquiry Form  
  Order Form  
  Progress your Order  
  Credit Card Payment  
Polyester Converters Ltd, Polyester Films
  Site Map  
  About Us  
  Supply Us  
Polyester Converters Ltd, Polyester Films
PSG website
Polyester Converters Ltd, Polyester Films
PSG are proud to anouce that is has been accredit to BRC / IoP Global Standard – food packaging and other packaging materials
PSG Group have been accredited BS EN ISO 9001:2000
Cleanroom Certification BS EN ISO 14644 : 1999 Class 8
We stock Melinex, Mylar Film
We stock Hostaphan Film
We stock  Terphane, Lumirror, Claryl Film

Polyester Converters Ltd, Polyester Films

Applications and End Uses


Bellis, Mary "Cracker Jack" Inventors at About. Retrieved January 1, 2001 from the World Wide Web: http://inventors.about.com/library/inventors/blcrackerjacks.htm


Cellophane was invented by Jacques E. Brandenberger in 1908, a Swiss textile engineer who first thought of the idea for a clear, protective, packaging layer in 1900. Brandenberger was seated at a restaurant when a customer spilt wine onto the tablecloth. As the waiter replaced the cloth, Brandenberger decided that he would invent a clear flexible film that could be applyed to cloth, making it waterproof.
He experimented with different materials and in tried applying liquid viscose (a cellulose product known as rayon) to cloth, but the viscose made the cloth too stiff. His idea failed but he noted that the coating peeled off in a transparent film. Like so many inventions, the original use was abandoned and new and better uses were found. By 1908, he developed the first machine for the manufacture of transparent sheets of regenerated cellulose. By 1912, Brandenberger was making a saleable thin flexible film used in gas masks. He obtained patents to cover the machinery and the essential ideas of his process. In 1917 Brandenberger assigned his patents to La Cellophane Societe Anonyme and joined that organization.
On December 26, 1923, an agreement was executed between du Pont Cellophane Company and La Cellophane by which La Cellophane licensed du Pont Cellophane Company exclusively under its United States cellophane patents, and granted du Pont Cellophane Company the exclusive right to make and sell in North and Central America under La Cellophane's secret processes for cellophane manufacture. Du Pont Cellophane Company granted to La Cellophane exclusive rights for the rest of the world under any cellophane patents or processes du Pont Cellophane Company might develop.
An important factor in the growth of cellophane production and sales was the perfection of moistureproof cellophane, a superior product of du Pont research and patented by that company through a 1927 application.
Making Cellophane
In the manufacturing process, an alkaline solution of cellulose fibres (usually wood or cotton) known as viscose is extruded through a narrow slit into an acid bath. The acid regenerates the cellulose, forming a film. Further treatment, such as washing and bleaching, yields cellophane.


PSG Group Ltd. - Disclaimer
All technical information and related data supplied by or on behalf of PSG
Group Ltd. (and subsidiary companies) is believed to be accurate and
complete. However, it will remain the responsibility of the purchaser / user
to determine the suitability of each product for a particular application
and shall assume all risk and liability in connection therewith.
No warranty is implied with regard to information or recommendations given
by our distributors and or subcontractors.
The descriptions of products and services displayed on this web site and the
terms under which they are given may be modified at any time without notice.
In any event or occurrence, our liability is strictly limited to the value
of the original invoice.
Any links on this site are for the convenience of the visitor only and we
are not responsible for their content.


    Web Design London      Carton Window Films      Trade Conversion      Insulation Materials      Archival & Conservation Films      Design & Reprographic Films      Packaging Films
We accept all major credit cards