On-line making of powder-free rubber gloves

Details On-line making of powder-free rubber gloves On-line making of powder-free rubber gloves

C - Chemistry, Metallurgy

08

L

C08L 83/04 (2006.01) B29C 41/22 (2006.01) B32B 25/08 (2006.01) B32B 27/08 (2006.01) C08J 5/02 (2006.01) C08J 7/04 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2557821

A powder-free medical glove having a first surface of a powder-free coagulant and a second surface with a polymer coating to ease donning. The powder-free coagulant on the first surface comprises micronized high-density polyethylene, a micro-emulsion of amino silicone, a dimethicone emulsion, calcium salts, an ethoxylated acetylenic diol surfactant and a cellulose thickener. The medical gloves are made in an on-line process of making latex articles that involves dipping hand-shaped formers into the coagulant before dipping them into the latex. The gloves are thereafter coated with a polymer to improve donnability before removal from the formers. The novel coagulant formulation permits easy removal of the articles from the formers, eases double-donning of gloves and eliminates the need for off-line processing.

L'invention concerne un gant médical à première surface en coagulant sans poudre et seconde surface à revêtement polymère, permettant de l'enfiler plus facilement. Le coagulant comprend du polyéthylène haute densité micronisé, une micro-émulsion d'amino silicone, une émulsion de diméthicone, des sels de calcium, un tensioactif diol acétylénique éthoxylé et un épaississant cellulosique. On le fabrique en ligne dans le cadre de la fabrication d'articles en latex : des gabarits façonneurs en forme de main sont plongés dans le coagulant avant d'être plongés dans le latex. Ensuite, le gant est revêtu de polymère dans le but susmentionné, avant le retrait des façonneurs. La formulation de coagulant considérée permet de retirer facilement les articles des façonneurs, d'enfiler plus facilement deux paires de gants superposés, et de supprimer tout traitement hors ligne.

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