Provided is a preparing method for gray
ultraviolet resistant non-woven. The preparing method comprises the steps of adding a
polyester chip into a main stock bin, conducting crystalization and
drying at the temperature of 165-175 DEG C, and then conducting fusion in a screw; adding black master batch and
ultraviolet resistant master batch into a small stock bin, wherein the adding proportion of the black master batch accounts for 0.5-2% of the dosage of the
polyester chip and the adding proportion of the
ultraviolet resistant non-woven accounts for 1.5-3% of the dosage of the
polyester chip, conducting
drying on the mixture for 3-5 hours at the temperature of 85-95 DEG C, adding a big screw into the mixture, and conducting
melt mixing on the mixture; conducting screw
extrusion after mixing the polyester chip, the black master batch and the ultraviolet resistant master batch, and conducting
spinning, cooling, traction tube drafting and web forming to obtain a 80-150 g / m<2> product; conducting
acupuncture reinforcing to reinforce and control the thickness of the product. The gray ultraviolet resistant non-woven product has an excellent ultraviolet resistant effect and is mainly used for being paved on the
lawn to achieve an effect of partial heat retaining. According to
experimental proof, after being exposed under an ultraviolet radiator for 500 hours, the gray ultraviolet resistant non-woven still has a mightiness
retention rate of 79%.