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  2. Cotton paper - Wikipedia

    en.wikipedia.org/wiki/Cotton_paper

    Cotton paper is typically graded as 25%, 50%, or 100% cotton. Usually it can be checked by holding the cotton paper up to the light and looking just below the watermark for a number. 100% cotton paper may contain small amounts of acids, and should be tested or certified before use for archival documents.

  3. Dissolving pulp - Wikipedia

    en.wikipedia.org/wiki/Dissolving_pulp

    Dissolving pulp is mainly produced chemically from pulpwood in a process that has a low yield (30 - 35% of the wood). This makes up of about 85 - 88% of the production. [2] Dissolving pulp is made from the sulfite process or the kraft process with an acid prehydrolysis step to remove hemicelluloses. For the highest quality, it should be derived ...

  4. Papermaking - Wikipedia

    en.wikipedia.org/wiki/Papermaking

    Handmade paper is also prepared in laboratories to study papermaking and in paper mills to check the quality of the production process. The "handsheets" made according to TAPPI Standard T 205 [ 20 ] are circular sheets 15.9 cm (6.25 in) in diameter and are tested for paper characteristics such as brightness, strength and degree of sizing . [ 21 ]

  5. Pulp (paper) - Wikipedia

    en.wikipedia.org/wiki/Pulp_(paper)

    The timber resources used to make wood pulp are referred to as pulpwood. [17] While in theory any tree can be used for pulp-making, coniferous trees are preferred because the cellulose fibers in the pulp of these species are longer, and therefore make stronger paper. [18]

  6. Cast paper - Wikipedia

    en.wikipedia.org/wiki/Cast_paper

    Cast paper is a paper crafting technique in which paper fiber or pulp, such as cotton fiber paper, is formed using a mold. The pulp may consist of pure fiber, or be an amalgam of fiber, binder, and filler, such as Papier-mâché. The technique is employed for in-the-round sculpture as well as bas-relief. [1] [2]

  7. Fiber crop - Wikipedia

    en.wikipedia.org/wiki/Fiber_crop

    The rags were from ramie, hemp, linen and cotton. [4] A process for removing printing inks from recycled paper was invented by German jurist Justus Claproth in 1774. [4] Today this method is called deinking. It was not until the introduction of wood pulp in 1843 that paper production was not dependent on recycled materials from ragpickers. [4]

  8. Paper chemicals - Wikipedia

    en.wikipedia.org/wiki/Paper_chemicals

    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 ...

  9. Wood-free paper - Wikipedia

    en.wikipedia.org/wiki/Wood-free_paper

    Non-wood pulp: This is a type of wood-free paper that is made from non-wood materials, such as cotton, hemp, linen, and bamboo. [16] Tissue pulp paper is smooth and opaque, making it ideal for printing and writing. [30] [31] [32] It is also relatively inexpensive, making it a popular choice for many applications. Non-wood pulp paper is more ...