Gel in the form of highly hydrated self-supporting film

PURPOSE: To obtain a gel in the form of highly hydrated self-supporting film which is transparent and soft, possesses an excellent mechanical property, does not strongly adhere to the skin injury and lesion surface, is permeable to gases but impermeable to liquids and bacteria and is suitable as a coating-protective material for skin injury and lesion surfaces. CONSTITUTION: This gel in the form of highly hydrated self-supporting film is obtained by mixing (A) at least one kind of alginic acid alkali salt, preferably sodium alginate, (B) an alginic acid alkaline earth slat, preferably calcium alginate, (C) a polyalcohol, preferably glycerol, and (D) a natural, synthetic or semi-synthetic hydrophilic polymer, preferably sodium hyaluronate, as essential components in proportions of A=1-75wt.%, B=0.1-5wt.%, C=0.1-10wt.% and D=0.5-10wt.%, preferably A=3.5wt.%, B=1wt.%, C=5wt.% and D=0.5wt.%, in addition, allowing the film preferably to contain a medicine. COPYRIGHT: (C)1992,JPO