Gradient color massager and preparation method therefor

A gradient color massager, comprising a non-transparent core and a single-colored transparent cover wrapped around an outer surface of the non-transparent core, wherein a vibrator is embedded inside the non-transparent core, the non-transparent core wraps the vibrator, a thickness of an outer surface of the single-colored transparent cover toward the non-transparent core varies, the single-colored transparent cover is connected to the non-transparent core, and the non-transparent core is made of rubber material;

• wherein the outer surface of the non-transparent core is provided with at least one first convex pattern, and the single-colored transparent cover is provided with a first concave pattern into which the at least one first convex pattern is inserted to be connected to at least one first convex pattern;
• wherein at least one second concave pattern is provided on the outer surface of the non-transparent core, and the single-colored transparent cover is provided with a second convex pattern configured to be inserted into the at least one second concave pattern to be connected to at least one second concave pattern;
• and
• wherein at least one of the at least one first convex pattern or the second convex pattern is arranged along a length direction and a circumferential direction of the non-transparent core;
• wherein the non-transparent core is prepared from a viscous shading rubber material;
• and the viscous shading rubber material is prepared by mixing uncured silicone rubber and shading filler evenly;
• the uncured silicone rubber comprises the following weight percentages of raw materials:
• 40-60% of methyl vinyl silicone rubber;
• 10-30% of hydroxysilicone oil;
• 5-15% of hydrogen containing silicone oil;
• 3-8% of viscosity modifier;
• 1-3% of platinum vulcanizing agent;
• 0.1-0.3% of inhibitors;
• and
• filler in balance;
• wherein the viscosity modifier comprises the following weight percentages of raw materials:
• 30-50% of 1,3-bis(3-methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane;
• 30-50% of vinyl tris (dimethylsiloxane) silane;
• 2-10% of polyethylene glycol monomethyl ether polylactic acid diblock copolymer;
• and
• 10-20% of silane-PEG-OH.