The invention discloses a preparation process and application of
green environment-friendly paper, belonging to the field of environment-friendly
papermaking technology. According to the invention, a Chinese ink coloring apparatus is employed for uniformly
coating the surface of a semi-dried paper web with a color
coating in a full-web Chinese ink coloring manner; since the paper web has
moisture, the paper web well absorbs Chinese ink during coloring, and a uniform color
coating can be formed; thus,
green environment-friendly myopia-preventing homework books, exercise books and examination paper of students prepared from produced paper through printing protect the eyesight of students from damage in use of the books and examination paper. A
paper machine is employed for
drying, compacting and synchronous dye fixation, so the coating on the surface of the paper is fully fused with the paper and is free of peeling. The whole process flow is integrated with a
papermaking procedure, the semi-dried paper web is directly subjected to full-web Chinese ink coloring and then to further
drying, and the
papermaking procedure is integrated with the
drying part of a coloring procedure, so
drying time is reduced, energy needed in drying is saved, and high efficiency and
energy conservation are realized. Produced
wastewater is simple in composition and easy to treat.