Patent · US Active

Textile dyeing using nanocellulosic fibers

US9506187B2 · kind B2 · utility

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26Claims
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Key dates

Filing dateJul 10, 2015
Grant dateNov 29, 2016
Priority date
Expiry dateJul 10, 2035

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD06P1/50
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

Disclosed are various embodiments for dyeing a material using a dyed nanocellulose dispersion, thereby reducing or eliminating the need for water in dyeing materials, such as fabrics and textiles. A dyed nanocellulose dispersion or gel may be prepared from wood pulp fibers using a homogenizer and a dye, wherein the dyed nanocellulose dispersion comprises nanosized cellulose fibrils. The dyed nanocellulose gel may comprise an approximate concentration of 0.5% to 6%. The dyed nanocellulose dispersion may be applied to a material, such as a fabric or textile material. The fabric or textile material can be dried resulting in a dyed material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.