Abstract: A method for manufacturing lustrous rubber includes: Step 1: choose rubber of different colors; Step 2: add 1-100 g pearl pigment to each 1 kg rubber; Step 3: mix the above combination; Step 4: cool the above mixture for 2 hours; Step 5: cut the above mixture into grains; Step 6: vulcanize and extrude the above grains for 4 minutes 30 seconds to 5 minutes 30 seconds; Step 7: the lustrous rubber is finished. Thus, lustrous colorful rubber can be manufactured through the above 7 steps, and figures can be produced too.

Abstract: The present invention is to provide an in-mold foaming method for making sole, with which the sole can be produced quickly and easily, which includes the procedures as 1) inputting foaming material in mold, wherein a volume percentage of foaming material in cavity of the mold is pre-calculated based on pre-designed specific gravity; 2) in-mold foaming; 3) cooling the foamed sole; 4) semi-finished product of sole is completed. With the procedures 1) inputting foaming material in mold and 2) in-mold foaming, the procedures of air-circulating oven post-cure, cooling and cutting procedures can be omitted, so as to simplify the technical process and improve the working efficiency.