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Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness, or by increasing its strength and resistance to water. [1] The chemicals can be defined on basis of their usage in the ...
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Afrikaans; العربية; Aragonés; Asturianu; تۆرکجه; বাংলা; 閩南語 / Bân-lâm-gú; Башҡортса; Беларуская ...
Paper made from chemical pulps are also known as wood-free papers (not to be confused with tree-free paper); this is because they do not contain lignin, which deteriorates over time. The pulp can also be bleached to produce white paper, but this consumes 5% of the fibres.
This page was last edited on 3 November 2019, at 16:45 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Acidic paper is paper which was manufactured using acidic substances. [1] Widely used since the mid-nineteenth century, its pages become yellow within years, extremely brittle over decades, and eventually unreadable in the library and archive collections intended to preserve them. [ 2 ]
The construction of the Bãi Bằng paper mill was controversial. [1] This project was signed as a cooperation between Sweden and then North Vietnam in 1969, with construction beginning in 1975. The construction was evaluated by the Chr. Michelsen Institute, an independent, non-profit research foundation based in Norway .
Bánh tráng trộn (meaning mixed rice paper or rice paper salad [1] in Vietnamese), is a popular Vietnamese street food made of rice paper mixing with a varieties of other ingredients. Originated as a snack for school students, bánh tráng trộn has since gained popularity in all over Vietnam and with oversea Vietnamese communities. [2] [3 ...