The basic raw material used to produce gloves is latex. It is obtained from Hevea brasiliensis.
The tree bark is tapped and a white, milky liquid flows into the tapping cups.
Latex collection is carried out early in the morning between 5 and 10 am, as the latex can spoil. If it is not collected at the right time, its physical properties change in warm temperatures, with the latex becoming more sticky and hardening.
At the collection centers, the fresh latex is centrifuged, pre-treated and then left to „mature” for 21 days.
Steps in the Manufacturing Process
The manufacture of most NR latex gloves follows roughly the same sequence. However, many manufacturers include processing steps that reduce the level of protein in their gloves. A typical glove manufacturing process is as follows:
Both the quality of the latex and the composition of the chemical mixture used in the production process influence the quality of the final product.
At the next production stage the porcelain formers are dipped in acid and basic solution, brushed, rinsed with hot water and dried.
Dry formers are coated with coagulant which prevents latex from adhering to them during the production process.
Following coagulation, the formers are put into an oven where they undergo thermal treatment after which they are dipped in latex and again put into the oven where they are vulcanized.
Vulcanization is necessary to obtain the final form and properties of the glove.
Before and after vulcanization, gloves – while still on the formers – are leached in a bath of hot water to wash out chemicals and proteins. The water in which the gloves are leached is constantly changed, which ensures that the washed-out allergens do not go back into circulation.
Next the gloves – while still in liquid form – on the formers are powdered with corn starch.
Then they are dried in hot air and removed from the formers.
At every stage, ISO-compliant quality control is performed.
Finally, the gloves are air-tested, packaged and made ready for shipment.