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wiki blog

wikisignpedia officially launches in Beta Version

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Over 426 sign wiki's now submitted.

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wiki updated due to glitch in post count. This glitch has now been rectified.

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Wikisignpedia has now been launched in beta-version to 15 trustee members of UKSB only.

We would like to encourage members to contribute as much as possible. Particularly on information based on their geographical location.

Thank you…

Robert Lambie

 

Sign Making Vinyl

Presure sensitive self-adhesive graphic vinyl film used for the creation of signs.

Terms used to describe the manufacturing processes.

Rolls are normally purchased in 3 sizes and available in lengths normally up to 50mtrs.

  1. 380mm (15inch)
  2. 610mm (24inch)
  3. 1220mm (48inch)

Vinyl is either printed or cut on a plotter, when plotted the vinyl requires weeding and then application tape is used to prepare the graphic before applying to the surface.

Vinyl that is printed sometimes is laminated to improve the durability and lightfastness of the graphic.

Manufacturing process

Calendered

The process of passing vinyl through a set of rollers, this makes a smooth even and gloss finish. This is how production of good quality vinyl is made which is reflected in its lower cost.

Cast

The process of mixing up the ingredients and then pouring onto a running conveyer system, this then gets baked to form a strong material, you could consider the process similar to baking a cake, the material is far more forgiving for shaping and made much thinner.

Makeup of the Vinyl

Monomeric

Monomeric - A monomer is small molecules that may chemically bond to other monomers, this forms a polymer. It is generally considered to be the shortest term of useage for a vinyl and the cheapest.

Polymeric

Polymeric - A polymer is a substance composed of molecules with large molecular mass composed of repeating structural units, or monomers, connected by covalent chemical bonds. Most calendared vinyls are polymeric, this is used for vinyls up to say 7 years.

Terms

Plasticizers

These are liquids that are add during the process of making vinyls. They add flexibility to the final film. They soften the feel to the hand.

Manufacturers

can you better this wiki entry?  If so, juct click edit and then save.
 
vinyl.txt · Last modified: 2008/09/18 02:39 by Graham Goodhall
Random Wiki

Velcro

1941: The beginning

The story of the discovery of hook and loop fasteners begins with George de Mestral taking a walk through the countryside.

The Swiss engineer enjoyed hunting. One morning in 1941, while returning from the fields with his dog, he noticed how difficult it was to detach the flowers of the mountain thistle from his trousers and his dog’s fur.

Surprised at the tenacity of the flowers, he removed them carefully from his clothing so that he could observe them under a microscope. It was then that he discovered why they clung on so ardently: the flowers were covered in hundreds of tiny but strong hooks and where thus able to attach themselves to animal fur and fabric.

George de Mestral, an experienced inventor, was able to see the potential of this discovery and developed it into an idea that, with much time and effort, would become a revolutionary fastening system that never jammed, and whose simplicity and strength superseded all previous systems.

Created from the first syllables of the French words velours (loop) and crochet (hook), the VELCRO® brand name has since 1959 been given to an extensive range of products that have greatly simplified fastening and closure operations

http://www.velcro.com/

 
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