THE INSULATOR AND THE SAME METHOD

摘要

Provided is an insulator consisting of multiple insulation units, having excellent insulation properties, and basically not causing contamination of a heat reflective film caused by outer air. The insulation units (250) comprise a spherical coated film (110) having a sealed space inside; and a group of insulation units including a partial heat reflective film (120) formed in a dome shape on a part of inner surface of the coating film. An argon gas is injected to an internal space of the insulation units.