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About the cellulose acetate?

  By Topview Eyewear. Published on Aug 28,2017

While we are often eager to look out for potentially revolutionary discoveries in terms of fresh new materials, and since the cellulose acetate applied in eyewear, now, the acetate eyewear  are very popular in recent years. Compare to regula metal eyewear, aluminium eyewear, carbon fibon eyewear, the acetate eyewear is most popular in these eyewear frames.

History of cellulose acetate:

The history of cellulose acetate can be traced back to 1865, when Paul Schutzenberger was responsible for first preparing it, but it was not until 1894 that a method for its production was created by Charles Cross and Edward Bevan. Ten years later, it was found that partially hydrolose CA could dissolve in acetone, prompting brothers Camille and Henri Dreyfus (Swiss brothers whose trademark product, Celanese, is still manufactured as a fibre for use in fashion garments) to create CA films and lacquers that were used during World War 1 for waterproofing and stiffening the fabrics used to cover aeroplane wings.

The appllication of cellulose acetate:

The application of cellulosics to spectacle production is not necessarily new - the material was used to create the faux tortoise-shell designs that were popular in the 1980s - but the aesthetic qualities have been given a contemporary twist. This interaction between old and new can be noted in ‘Ensemble’, sunglasses with a range of accessories that couple modern technology with colour choices inspired by the 1970s. In another example of reinvention, ‘Extreme’ blurs the line between sportswear and fashion, moving away from the image that plastics are mass produced and soulless, instead emphasising the quality and individuality that can be obtained through CA use.

Production of cellulose acetate:

Cellulose acetate is made by treating cellulose with acetic acid and acetic anhydride using catalysts (sulfuric acid). The cellulose triacetate has 62,5% of acetic acid combined, furthermore is soluble in the reaction of acids; it is put into the water, washed and dried. The compositions for molding of cellulose acetate are prepared with acetate flakes, plasticizers (10-70 parts), pigments and dyes, by mixing these ingredients in cylinder mixers, extruders or in closed mixer (Banbury) at temperatures between 175 ° C and 270 ° C. 

Features of cellulose acetate:

The cellulose acetate has good properties of toughness and impact resistance; it is stable at room temperature and has good resistance to discoloration when it is exposed at sunlight. This material can be produced in a wide selection of colors, in transparent or translucent form. The field of applications is very broad including toys, sundries, household; in form of sheets, it is widely used in packaging, electrical insulation and belts. It is also used in large quantities for the production of photographic films not flammable.

acetate eyewear is made by cellulose acetate, and acetate eyewear  are very popular in recent years. 

  >> Acetate Eyewear Technology
The Production process of acetate eyewear.
Brief introduction of Acetate eyewear.
About the cellulose acetate.
Lenses applicable for acetate Eyewear.
High qulity of acetate eyewear.
The qulity control of acetate eyewear.
Why select our acetate eyewear.
How choose the sunlens.
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