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Practical Vacuum Impregnation
Author(s) -
Fox Maurice R.
Publication year - 1973
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1973.tb03129.x
Subject(s) - atmospheric pressure , aqueous solution , process engineering , materials science , process (computing) , immersion (mathematics) , substrate (aquarium) , environmental science , chemical engineering , chemistry , computer science , meteorology , engineering , organic chemistry , physics , mathematics , geology , oceanography , pure mathematics , operating system
Impregnation of difficulty wettable substrates by exposing the dry substrate to a sufficiently low atmospheric pressure to remove occluded air, followed then by immersion in aqueous baths with a final return to atmospheric pressure, gives thoroughly saturated substrates in a fraction of the normal time. This process was first described in patent literature in 1966 and then in the Journal a year later [1]. Considerable progress has since been made in the practical development of the process. Advances in this new technology are described; commercial machines are now available. Comparisons of bulk findings with those anticipated from the early laboratory work are reported.