섬유

reduction of free formaldehyde content in carbamate-finished fabrics. patent application

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 343
the invention is based on the discovery that the formaldehyde content of carbamate finishing solutions and unwashed cellulosic products created therefrom may be lowered substantially below that previously achieved in the art. this is accomplished by applicants' discovery of a method by which three previously known but independent formaldehyde reducing systems could be incorporated into a single compatible process. the inventive process comprises the combined action of: (1) reducing the amount of formaldehyde used in preparing a hydroxymethylated carbamate intermediate; (2) alcoholic etherification of said intermediate; and (3) inclusion of a formaldehyde scavenger and/or oxidant in the textile treatment bath the invention is applicable for use in the treatment of any fibrous cellulosic textile material such as cotton, flax, jute, hemp, ramie, regenerated celluloses such as rayon, and polynosic rayons
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