carbon tissue meaning in Hindi

Examples

1. The carbon tissue is first exposed to a film positive.
2. After developing the carbon tissue, it is adhered to the surface of the copper-plated cylinder.
3. A solution of ferric chloride etchant is applied to the surface of the cylinder, where it eats away the copper through the carbon tissue.
4. This market was almost closed in the 1950s although some companies produce small amount of carbon tissue and transfer papers for monochrome and three-color work until around 1990
5. A sheet of carbon tissue is then exposed first to the screened positive, which produces an image of dots of varying sizes, then to the continuous-tone positive, which produces differing degrees of hardening of the dot image.
6. In the highly exposed areas, where the carbon tissue photoresist is thickest and hardest, the etchant takes a long time to eat through the hard emulsion, while in the least exposed, thinnest regions the etchant eats through the resist into the copper very quickly.
7. To make a full-color print, three negatives photographed through red, green and blue filters are printed on dichromate-sensitized sheets of pigmented gelatin ( traditionally called " carbon tissue " regardless of the pigment incorporated ) containing, respectively, cyan, magenta and yellow pigments.
8. In those areas where the carbon tissue has received the most light ( i . e ., non-image areas and highlights ) the emulsion becomes thick and hard, and the thickness and hardness decreases with decreasing exposure to the light source, the emulsion being thinnest and softest in image areas corresponding to shadows and solids.