Longer Shelf life
Easiest way to reproduce
The diazo products of Asian, distinguish themselves by a high standard of quality and are oriented to comprehensively fulfill the multiple demands of the user.
The use of selected, high grade raw materials, ISO-conforming manufacturing processes and our well trained, experienced and motivated staff, all guarantee for the high quality of our products. Our diazo papers are extra white, opaque and mechanically tear resistant. They permit excellent copying results with high-contrast image lines. The photo sensitive coatings permit good copying speeds and high coverage, very light resistant and document consistent image lines.
Diazo papers are available in blue line and black line. The blue line papers are usually selected for general copying, for reproducing drawings, typed or printed business forms, etc. Black line papers are used for office copying, correspondence, forms etc. It is also used as profile in textile industries.
The Salient Features
- Bright Line Image
- Clear Background
- Fast Exposure Speed
- Fast Developing Speed
- No ageing problems
- Economical cost
- Super Fine
- Extra Super white
The principle of diazo copying is based on trans illumination. A written or drawn original is placed on the light sensitive diazo paper or film and is illuminated. In so doing, the light passes through the document onto the diazo paper and reduces the photosensitive layer there, with exception of those place on the document which are covered by drawing text or text. These places are then converted into dye by the subsequent development and thus yield a true image of the original.
The normal shelf life of the paper is around 120 days from the date of manufacturing. The life of the paper can be enhanced provided optimum storing conditions are maintained. Recommended room temperature is 25oC and relative humidity 60%. Always store the rolls in vertical position and keep away from liquid ammonia and direct Sun light.
To get the best print result
- The speed of Exposure should be maintained according to the clarity of the master tracing and the quality of the Diazo on the base paper.
- The developing time with liquid ammonia should be decided with a small print, before going for mass production.
- Always use a voltage stabilizer for the printing machine to ensure uniform light emission.
The Super Fine and Air Mail varieties of paper are available in ISI and Non- ISI standards of cut sheets from A4 to A0 sizes against special orders
No. 115 & 116, SIDCO Industrial Estate, Ambattur, Chennai, Tamil Nadu, 600098, India