Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.8/81
Título: Enzymatic versus chemical deinking of non-impact ink printed paper
Autor: Pala, Helena
Mota, Manuel
Gama, Francisco Miguel
Palavras-chave: Paper pulps
Non-impact inks
Deinking
Enzymes
Image analysis
Data: 2004
Editora: Elsevier
Citação: PALA, Helena; MOTA, Manuel; GAMA, Francisco Miguel - Enzymatic versus chemical deinking of non-impact ink printed paper. Journal of Biotechnology. Vol. 108, n.º 1 (2004), p. 79-89.
Resumo: Enzymatic versus chemical deinking is examined for MOW and photocopy prints. Several enzymatic preparations and two fibre/ink particle separation methods are tested. Deinking was monitored by image analysis and standard pulp and paper characterisation procedures. The effectiveness of the fibre/ink particle separation method depends on the ink particle’s size: for smaller particles a washing step is recommended whereas for larger particles, the use of flotation is necessary. The enzymatic treatment is a competitive alternative for MOWand photocopy paper deinking. However, the process requires the selection of an adequate enzymatic preparation for each paper grade.
URI: http://hdl.handle.net/10400.8/81
ISSN: 0168-1656
Aparece nas colecções:Artigos em revistas internacionais

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