▎ 摘　　要

NOVELTY - The utility model relates to the technical field of collar, specifically to a phase change cooling cool neck, comprising a collar main body, the collar main body comprises a collar sleeve, the collar sleeve inner end is provided with an inner ring, the inner ring is provided with graphene particles, the graphene particles are provided with phase change particles; graphene particles are connected with a heat conducting layer, the phase change particles and the graphene particles are connected with bonding layer. The utility model through the set inner ring, through the graphene, heat conducting material, phase change constant temperature material, inorganic bonding material and non-woven fabric and other heat conducting and constant temperature material; the inorganic bonding agent bonding into particles by using non-woven fabric; it ensures the ventilation property of the product, at the same time, it has the function of cooling and absorbing sweat.