The invention discloses a wet non-
woven fabric for a
water treatment reverse osmosis membrane supporting body base material and a preparation method, main body fibers and hot melting bonding fibers are used as
raw material fibers, and the main body fibers are made of PET; the hot-melt
adhesive fiber comprises a
surface layer and an inner core, the
surface layer is made of modified COPET, and the inner core is made of PET. A wet non-
woven fabric process is adopted, the base material non-
woven fabric is formed into a whole through
fiber dispersion, inclined wire
papermaking forming,
drying cylinder
drying and off-line
machine external hot melting rolling, the whole base material non-woven fabric is of a single-layer structure, and the prepared base material non-woven fabric needs to have good
surface coating performance and good
coating liquid permeability and cannot permeate to the non-
coating surface of the base material non-woven fabric. According to the invention, by adopting a
distributed control system, the method has the characteristics of good product quality
controllability, stable performances of the finished product, simple and reasonable operation of the preparation process flow, easiness in operation,
energy conservation and consumption reduction, and can meet the requirements of
reverse osmosis membrane production.