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The sublimated material collects (5) on the cold finger proper, cooled by a coolant (blue) circulated through ports 1 and 2. A cold finger is a piece of laboratory equipment that is used to generate a localized cold surface. It is named for its resemblance to a finger and is a type of cold trap. The device usually consists of a chamber that a ...
At the start of the 19th century, a technique gained popularity that involved transferring a drawing onto a lithographic stone from a special paper coated with a mix of starch and gelatin. This method, called autographic transfer, allowed artists to easily reproduce their drawings. Firmin Gillot took this a step further.
Various designs have been invented to enable different drug release profiles. 3D printing protocols have been developed to print tablets with immediate-release and modified release profiles. The order and geometric orientation of layers in a tablet, the shape of tablets, and the excipients used determine the release profile of the active ...
used in photochemical analysis and quantitative estimation of substances such as blood sugar, creatinine, and hemoglobin. Burette: used to measure the amount of acid or alkali used in titration: General laboratory stands, racks, filter paper, reagents, etc. Induction coils: as a source of high voltage electricity Cathode ray oscilloscope ...
Reduction printing is a name used to describe the process of using one block to print several layers of color on one print. Both woodcuts and linocuts can employ reduction printing. This usually involves cutting a small amount of the block away, and then printing the block many times over on different sheets before washing the block, cutting ...
Plastic drawing, sometimes referred to as cold drawing, is the same process as used on metal bars, applied to plastics. [8] Plastic drawing is primarily used in manufacturing plastic fibers. The process was discovered by Julian W. Hill in 1930 while trying to make fibers from an early polyester. [9]
Pad printing (also called tampography) is a printing process that can transfer a 2-D image onto a 3-D object (e.g., a ceramic pottery). This is accomplished using an indirect offset ( gravure ) printing process that involves an image being transferred from the cliché via a silicone pad onto a substrate .
Cold foil printing, also known as cold foil stamping, is a modern method of printing metallic foil on a substrate in order to enhance the aesthetic of the final product. . Cold foil printing can be done two ways: the older dry lamination process common in the offset printing industry, or the newer, more versatile wet lamination process, which is dominant in the flexo label indus