3Dフィルムケース​ is a PBT phone case printed using sublimation film in a sublimation vacuum machine. The film wraps around the entire case, and under heat and vacuum pressure, the design bonds permanently into the PBT surface — resulting in a seamless, full-wrap print with no visible seams or window effect.

Advantages for 3D Film Phone Cases

• Cost-effective​ — PBT resin is generally cheaper than PC, making it attractive for mid-range and promotional products.

• Good heat tolerance​ — withstands the 130°C range used in sublimation vacuum mahcine.

• Accepts sublimation dyes well​ — when properly formulated or pre-treated, PBT bonds with disperse dyes for vibrant, permanent prints.

• Lightweight​ — lighter than PC in some formulations.

• Easy to injection mold​ — fast cycle times, good flow properties.