The invention relates to the technical field of medicines, in particular to a
cooling gel sheet and a preparation method thereof. The
cooling gel sheet comprises a back lining material, a
gel matrix layer and a cover lining material, wherein the
gel matrix layer is prepared from
menthol,
tartaric acid, silanediol salicylate,
sodium polyacrylate, glycerin,
aluminum glycinate, disodium
ethylenediamine tetraacetic acid, a
preservative and water. The
cooling gel sheet has the advantages that when the cooling gel sheet is stuck, the quick
cooling effect is realized by the volatilizing of
menthol and gasifying of water; because the silanediol salicylate absorbs a certain amount of
menthol, part of menthol slowly volatilizes, the
cooling time can be prolonged, and the defects of short action timeand poor suitability in the existing cooling gel sheet are overcome; the
preservative contains
glycerol octanoate, octyl
hydroxamic acid and p-hydroxyacetophenone, so that the moisturizing effect ofglycerol is increased, the function of maintaining the stability of the
hydrogel matrix in the gel sheet is realized, the easiness in solidification of the
gel matrix due to influence by temperature and overquick
evaporation of water is avoided, the stability of the
hydrogel matrix in the gel sheet is maintained, and the
cooling time is prolonged.