The invention relates to a production method of a decorative sheet, in particular to a method for producing an
atomic oxygen anion
flame-retardant
formaldehyde-free decorative sheet from
agriculture and
forestry residues. The method for producing the
atomic oxygen anion
flame-retardant
formaldehyde-free decorative sheet from the
agriculture and
forestry residues comprises the following steps: (1)conducting
biomass modification: conducting
surface modification on a
biomass powder material; (2) producing a base layer: after 30-50 parts by weight of a
biomass powder material subjected to surfacemodification treatment and 50-70 parts by weight of a first
magnesium oxychloride
cement mixture are fully mixed, conducting micro-foaming and paving to form the base layer; (3) conducting
surface layer production and layered paving: producing a second
magnesium oxychloride
cement mixture, and paving the base layer with the second
magnesium oxychloride
cement mixture which is used as a
surface layer; a ratio of the thickness of the
surface layer to the thickness of the base layer is (0.2-0.8):(15-20); and the first magnesium oxychloride cement mixture comprises, in parts by weight, 0.5-4 parts of
trisodium phosphate and magnesium
sulfate, 10-20 parts of silica
powder, 0.1-0.8 part of
sodium methylenebisnaphthalene
sulfonate, 0.1-0.9 part of 2-(2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]ethoxy)
ethanol, 0.1-1 part of
calcium formate and the balance magnesium oxychloride cement. The decorative sheet produced through the method for producing the
atomic oxygen anion
flame-retardant
formaldehyde-free decorative sheet from the
agriculture and
forestry residues has functions of flame retardancy,
fireproofing, anion induction and light weight.