What is a diazo emulsion and how does it work?

What is a diazo emulsion and how does it work?

 diazo emulsion, along with the photosensitive film (also known as film), is a commonly used photosensitive material. diazo emulsion, generally divided into the single-liquid type and two types of double-liquid type, single-liquid type diazo emulsion in the production of photosensitizer has been mixed into the latex, use without preparation can be used, double-liquid type diazo emulsion in the use of the first photosensitizer according to the formula into the water to dissolve, and then mixed in the latex fully mixed and placed in 1-2 hours, until the bubbles disappear completely before use.

 the diazo emulsion can be generally divided into solvent-resistant and water-resistant types. The solvent-resistant diazo emulsion can be resistant to a variety of organic solvents, applicable to the printing of oil-based inks; water-resistant diazo emulsion, applicable to the printing of water-based inks (water-soluble printing coatings, such as textile printing paste), the former screen can be recycled off the film; the latter generally can not be recycled off the film. Special water-resistant diazo emulsions is nylon diazo emulsion and diazo emulsion, etc. Users must refer to the relevant instructions to select the appropriate diazo emulsion according to the substrate.

 the diazo emulsion is a screen printing plate sensitizing material used for direct plate making and can be divided into the single-liquid type and double-liquid type. Single-liquid type diazo emulsion in the production of the photographic agent has been added to the emulsion, the use of no preparation can be coated; double-liquid type diazo emulsion in use before the photographic agent according to the formula instructions to dissolve, and then disperse mixed in the emulsion, after defoaming before coating.

 diazo emulsion models, varieties, manufacturers of formulations are not consistent, the choice can be based on the requirements of the substrate, refer to the product specification appropriate choice.