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Chemical pulping involves dissolving lignin in order to extract the cellulose from the wood fiber. The different processes of chemical pulping include the Kraft process, which uses caustic soda and sodium sulfide and is the most common; alternatively, the use of sulfurous acid is known as the sulfite process, the neutral sulfite semichemical is treated as a third process separate from sulfite ...
Microwave volumetric heating (MVH) overcomes the uneven absorption by applying an intense, uniform microwave field. Different compounds convert microwave radiation to heat by different amounts. This selectivity allows some parts of the object being heated to heat more quickly or more slowly than others (particularly the reaction vessel).
The growth in commercial use of paper towels can be attributed to the migration from folded towels (in public bathrooms, for example) to roll towel dispensers, which reduces the amount of paper towels used by each patron. [12] Within the forest products industry, paper towels are a major part of the "tissue market", second only to toilet paper ...
How It's Made is a documentary television series that premiered on January 6, 2001, on the Discovery Channel in Canada and Science in the United States. The program is produced in the Canadian province of Quebec by Productions MAJ, Inc. and Productions MAJ 2.
Microwave Active Composition is a brand of microwave-sensitive liquid chemicals sold by Atlanta Chemical Engineering LLC. The chemical undergoes color change if it interacts with intensive microwaves. There are two major types of microwave active compositions - reversible and irreversible.
Sanitary paper includes papers used for toilet paper, sanitary napkins, facial tissues, paper towels, napkins and some disposable diapers. [ 1 ] [ 2 ] The paper is processed to be soft and absorbent. Global production of the category in 2013 was 30.9 million tonnes, having steadily increased since 1993.
Non-thermal effects in liquids are almost certainly non-existent, [1] [2] as the time for energy redistribution between molecules in a liquid is much less than the period of a microwave oscillation. A 2005 review has illustrated this in application to organic chemistry, though clearly supports the existence of non-thermal effects. [ 3 ]
An oven towel or confectioner's mitten is a multipurpose household towel used for a kitchen or shop applications. A paper towel is a piece of paper that can be used once as a towel and then be disposed of. A perforated roll of paper towels is usually mounted on a rod slightly longer than the width of the roll, or in an alternative type of ...