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Scouring is an essential pre-treatment for the subsequent finishing stages that include bleaching, dyeing, and printing. [5] Raw and unfinished textiles contain a significant amount of impurities, both natural and foreign. It is necessary to eliminate these impurities to make the products ready for later steps in textile manufacturing. [6]
Deinking is the industrial process of removing printing ink from paperfibers of recycled paper to make deinked pulp. The key in the deinking process is the ability to detach ink from the fibers. This is achieved by a combination of mechanical action and chemical means.
How to Clean “Use a couple of small squirts of mild liquid dish soap mixed into warm water and rub gently, then rinse,” recommends Harris. But don’t use too much dish soap thinking it’s ...
like HEPA filter, used in various laboratories and clean rooms to produce lamellar air flow Radiation: •Gamma ray source: used in sterilization of heat-labile products like plastic or rubber syringes, catheters and gloves •X-ray source-do- •Infrared light source-do- •Ultraviolet light source-do- Inspissator
They include the following chemicals: sodium hypochlorite (active agent in bleach), chloramine, halazone, and sodium dichloroisocyanurate. [2] They are widely used to disinfect water and medical equipment, and surface areas as well as bleaching materials such as cloth. The presence of organic matter can make them less effective as disinfectants ...
A clean and sanitized kitchen and food prep area is essential to ensure safety against bacteria and other germs for ourselves and others. Like many other home cooks, I’ve always felt the key to ...
The print must then be rinsed in water to removed the fixer. Photographic fixer is a mixture of chemicals used in the final step in the photographic processing of film or paper. The fixer stabilises the image, removing the unexposed silver halide remaining on the photographic film or photographic paper , leaving behind the reduced metallic ...
A Ludlow Typograph is a hot metal typesetting system used in letterpress printing. The device casts bars, or slugs of type, out of type metal primarily consisting of lead. These slugs are used for the actual printing, and then are melted down and recycled on the spot. It was used to print large-type material such as newspaper headlines or posters.