US Patent 11713179 Refillable product containing dissolvable solid article

Disclosed is a refillable product that includes a container containing two or more first dissolvable solid articles. The solid articles are characterized by a maximum dimension D and a minimum dimension z. The maximum dimension for D ranges from 1 mm to 300 mm and the minimum dimension for z ranges from 0.5 mm to 150 mm. The ratio between D and z ranges from 1:1 to 300:1. The refillable product also includes indicia for a user to put the dissolvable solid articles and a liquid carrier into another container. This product can provide an environment friendly product. For example, by not containing any liquid during transportation, the product can reduce energy consumption during the transportation.