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Dispersible non-wood pulp

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  • Title:
    Dispersible non-wood pulp
  • Author: YU ZHEYONG ; SHANNON THOMAS G ; PAULSON DAVID J ; UNDERHILL RICHARD LOUIS ; ACKLEY STEPHEN C
  • Subjects: IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
  • Description: Non-wood pulp having a fiber length of greater than about 1.70 mm and a very long fiber (VLF) content of about 0.50% or less is disclosed. The fibers are readily dispersed in water and can be used to form fibrous sheets, in particular wet-laid sheets, and more particularly wet-laid tissue paper sheets having a lower basis weight. In addition to having a relatively long fiber length and a low VLF content, the pulp may have a dispersion index of about 2.00 or less, which indicates that the fiber length distribution is relatively narrow. The pulp may be prepared from a plant of the family Asparagaceae by mechanical pulping, and more preferably by a chemical mechanical pulping process using a base and hydrogen peroxide, where the plant biomass is cut to size prior to pulping. 公开了非木纸浆,所述非木纸浆具有大于约1.70mm的纤维长度和约0.50%或更低的超长纤维(VLF)含量。所述纤维易于分散在水中并且可用于形成纤维状片材,特别是湿法成网片材,并且更特别是具有较低基重的湿法成网薄页纸片材。除了具有相对较长的纤维长度和低VLF含量之外,所述纸浆还可以具有约2.00或更小的分散指数,这表明纤维长度分布相对较窄。所述纸浆可以由天门冬科植物通过机械制浆制备,并且更优选地通过使用碱和过氧化氢的化学机械制浆工艺制备,其中植物生物质在制浆前被切割成一定尺寸。
  • Creation Date: 2023
  • Language: Chinese;English
  • Source: esp@cenet

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