Application of Urethane Polymer as a Hair Styling Agent-The Developments and the Properties of Elastic Setting Agents "Polyurethane Dispersion"-:The Developments and the Properties of Elastic Setting Agents "Polyurethane Dispersion"
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概要
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There are a wide variety of hair styling products with various setting effects. Methyl carboxy betaine/alkyl methacrylate copolymer, vinylpyrrolidone/vinylacetate copolymer, acrylates/diacetoneacrylamide copolymer, etc., are used as hair setting polymers. These synthetic polymers can form films with the volatilization of water or ethanol on the hair surface. Consumers are divided into two groups in terms of their preference. One group, those who are concerned with a good setting effect, want to use a strong hold type hair styling product which contains a polymer that forms a very hard film. The other group, who also prefer a good setting effect, use a soft hold type to avoid an undesirable hair feeling. A noble polymer named "Polyurethane Dispersion" has been developed for the latter. Polyurethane Dispersion is a self-emulsifying polymer containing a urethane bond in its main chain. Film properties of Polyurethane Dispersion are soft and elastic. Therefore, the polymer can give a high setting effect with a good hair feeling. Furthermore, the polymer also shows a good thickening property and a high humidity tolerance. Polyurethane Dispersion is recognized not only as a good thickner but also as an agent that can yield excellent adhesive and setting properties of hair. A styling mousse and a styling gel with this new Polyurethane Dispersion can result in a long-shelf-life product without stickness or flaking. Polyurethane Dispersion is a new hair setting polymer that can give "natural style."
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