Dissolving pulp, also known as dissolving cellulose, is made from bleached wood pulp or cotton linters with a high cellulose content (more than 90%). It has unique properties such as high brightness and a uniform molecular-weight distribution. This pulp is made for applications that require high chemical purity and, in particular, a low hemicellulose content, because hemicellulose, which is chemically similar to cellulose, can interfere with subsequent processes. Because it is not made into paper, dissolved pulp is dissolved in a solvent or by derivatization into a homogeneous solution, making it completely chemically accessible and removing any remaining fibrous structure. Once dissolved, it can be spun into textile fibers (viscose or Lyocell), or chemically reacted to produce derivatized celluloses, such cellulose triacetate, a plastic-like material formed into fibers or films, or cellulose ethers such as methyl cellulose, used as a thickener.
The global demand for natural products is increasing with every passing day. That apart, the plentiful availability of cellulose natural polymer on earth has made the work of pulp and paper industry manufacturers quite easy. Dissolving pulp, also known as cellulose, is being produced in huge quantities due to its wide applicability in textile, cigarette, cosmetics and personal care, pharmaceuticals, and other industries. Various characteristics of dissolving pulp market, such as high cellulose percentage, alkali solubility, the high degree of polymerization and low hemicellulose content, make it quite suitable for a wide range of applications. High cellulose content dissolving pulp is used in textiles and industrial products, including rayon staples, acetates, tire cords and other products. Dissolving pulp can be cast into a film, regenerate into a sponge or spun into textile fiber. The derivation of dissolving pulp without dissolution can also produce an array of products. High purity gives dissolving pulp its trademark whiteness, which makes it suitable for paper products, including vulcanized fiber and filter paper. On acid hydrolysis, dissolving pulp mechanically disintegrates into fine precipitate, which can be used as a filler for various polymers. Overall, the global dissolving pulp market is projected to witness positive growth during the forecast period.
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