Chemistry | Latex | Quality assurance during latex glove production

The coagulant dipping process is most commonly used to produce latex gloves, where molds are subsequently dipped into a coagulant and latex compound solution. The concentration of both solutions is a key parameter and affects the final glove quality and durability.

Natural rubber latex is the oldest and most familiar material used in protective and medical gloves.

Nowadays it has increasingly been replaced by synthetic latex. These materials, such as synthetic polyisoprene, chloroprene or NBR (nitrile) latex, are produced on the basis of petrochemical raw materials.

Although the main reason for the replacement of natural rubber latex is to avert allergic reactions to rubber, modern synthetic latex also offers better chemical resistance and often superior wearing comfort compared to natural rubber.

Both, natural as well as synthetic latex concentrates are used in the so-called “coagulant dip process” to manufacture the gloves.

Anton Paar’s inline refractometer L-Rix 5100 has proven to be well suited for the continuous concentration monitoring of coagulant and latex compound solution and can be directly installed into the production line or tank to measure concentration (%) in real-time.

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