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Nexcare is 3M's personal health care brand. The brand competes with Johnson & Johnson's Band-Aid brand in the adhesive bandage and first aid market. [1] [2] The brand also sells similar products such as bandages, gauze, surgical tape, cold sore treatment and liquid bandage products.
A close-up of an open Band-Aid. Band-Aid is a brand of adhesive bandages distributed by the consumer health company Kenvue, spun off from Johnson & Johnson in 2023. [3] Invented in 1920, the brand has become a generic term for adhesive bandages in countries such as the United States, Canada, Australia, and others.
Bandages of synthetic materials are also used—often knitted fiberglass bandages impregnated with polyurethane, sometimes bandages of thermoplastic. These are lighter and dry much faster than plaster bandages. However, plaster can be more easily moulded to make a snug and therefore more comfortable fit.
Lost-foam casting (LFC) is a type of evaporative-pattern casting process that is similar to investment casting except foam is used for the pattern instead of wax. This process takes advantage of the low boiling point of polymer foams to simplify the investment casting process by removing the need to melt the wax out of the mold.
An entirely transparent adhesive bandage, with a transparent hydrogel pad and adhesive waterproof plastic film (removable backing is blue and white). The backing and bag are often made of coated paper, but may be made of plastic. The adhesive sheet is usually a woven fabric, plastic (PVC, polyethylene or polyurethane), or latex strip.
The most common type of bandage is the gauze bandage, a woven strip of material with a Telfa absorbent barrier to prevent adhering to wounds. A gauze bandage can come in any number of widths and lengths and can be used for almost any bandage application, including holding a dressing in place.
Rubber pad forming process, 1: bottom of the press. 2: lower die. 3: sheet metal. 4: rubber pad. 5: top of the press. Rubber pad forming (RPF) is a metalworking process where sheet metal is pressed between a die and a rubber block, made of polyurethane. Under pressure, the rubber and sheet metal are driven into the die and conform to its shape ...
First, a core is made from a fusible alloy or low melting temperature polymer. It is then placed inside the injection mold's dies and the plastic is shot into the mold. The molding is then removed from the mold with the core still in it. Finally, the core is melted or washed out of the molding in a hot bath.