Why do paper cups have to be double-layered? And there is a gap between the two layers, the ultimate purpose is to insulate and keep warm. Just imagine, drinking a cup of steaming coffee in the cold winter will make you have a wonderful day. Wholesale paper cup suppliers like Lwecopack are ready to offer custom design and more options.
Good thermal insulation, can prolong the heat preservation effect.
There are more material options to meet different market demands.
Will be more stronger and won't break easily.
