The invention discloses components and a preparation method of antibacterial and
mildew-proof treatment liquid of a
digital printing real-silk silk painting and an antibacterial and
mildew-proof post-treatment process. The treatment liquid is prepared from 2.00%-6.00% of
phenyl salicylate, 0.10%-0.70% of
dichlorophenol, 0.10%-0.40% of 2-phenylphenol, 0.10%-0.70% of N-octylisothiazolinone, 2.00%-6.00% of
sodium alginate, 30.00%-45.00% of
ethanol and 41.20%-65.70% of de-ionized water. All the components of the treatment liquid are added into a
mixed solution of the
ethanol and the de-ionized water and are stirred to be sufficiently dissolved; and the obtained liquid can be used for post-treatment process steps of starching a real-silk white blank of the
digital printing real-silk silk painting,
drying, drawing by spraying,
steaming, washing with water, and impregnating by the antibacterial and
mildew-proof treatment liquid and the like. The antibacterial and mildew-proof treatment liquid has a simple and convenient preparation process, has no
toxicity and damages to human bodies and no any toxic
side effect on the environment, does not damage a silk
protein structure in a
silk fabric and does not influence the real effect of the
digital printing real-silk silk painting; and the difficulties that various
bacteria are easily bred on the real-silk silk painting and the real-silk silk painting has mildew, so that the quality and service life of the painting are influenced are overcome.