| 摘要 |
A shampoo leaf comprises a sheet of paper of high wet strength, suitably a vegetable parchment paper, which carries on one or both faces a surface coating of a non-saponaceous detergent, such as sodium lauryl sulphate, which adheres to the paper without flaking off, the shampoo leaf being such that it can be rubbed on to a user's head without the paper disintegrating. Preferably the leaf has a hole towards one end so that a finger may be inserted to give a grip when the leaf is being used. In a modification two sheets, each coated on both faces, are stuck together face to face, each sheet having small perforations out of register with those of the other sheet, the perforations serving to allow the passage of the detergent from between the sheets when in use. The leaves may be made by coating the paper with detergent, drying the coated paper in a tunnel drier and, if desired, pressing or crimping two sheets together while still tacky to make them adhere. In the case of single leaf shampoos the drying may also be performed by an infra-red treatment. After drying, the sheets are cut into suitable sizes and shapes, and several may be fastened together in a holder. The first Provisional Specification refers to shampoo leaves as described above which are coated with soap. |
