Abstract: Apparatus for vertically regulating the dispensing height of stretchable wrapping material for stretch wrapping a load which comprises carriage means for varying the height of the carriage means between predetermined upper and lower positions, and safety means to prevent the fall of the carriage means to the lower position in the event of a failure of the height varying means. Also, a methods for preventing the accidental downward movement or falling of the carriage means in the event of a failure of the height regulating means which comprises providing safety means to grasp the frame means of a stretch wrapping apparatus when the height varying means breaks or fails.

Abstract: Shampoo compositions for human hair having low eye irritancy and conditioning properties are prepared. These compositions are comprised of water having dispersed therein a complex consisting essentially of a water-soluble cationic cellulose ether derivative and an amphoteric surfactant. The complex is dispersed by a mixture of nonionic surfactants consisting essentially of a fatty acid N,N-diethanolamide and a polyoxyethylene sorbitan fatty acid ester. The shampoo compositions are prepared by first dissolving the cationic cellulose ether derivative, admixing the amphoteric surfactant which forms the complex, admixing the nonionic surfactants which disperse the complex and then heating the admixture to assist dispersion of the ingredients.