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Nitrile Gloves by Dip Moulding
Thin rubber gloves are made on hand-shaped formers. A dried former is dipped in a coagulant, calcium nitrate with a powder and wetting agent; then into compounded nitrile latex, which sets as a film where the coagulant is, the time in the latex deciding the thickness. The film is leached in warm water, the cuff is rolled into a bead, and the glove is cured in an oven (about 125 °C for 20 minutes in one patent example) before it is stripped off the former. Powder-free gloves are then chlorinated or given a polymer coating so they slip on easily.
Advanced
Factory process
Instructions
1
1
Coagulant dip
Coagulant dip
Dry the formers in an oven, dip them in the calcium nitrate coagulant and let it dry.
Materials for this step:
Calcium Nitrate1 kgTools needed:
Glove Former
Glove Dipping Line2
2
Latex dip
Latex dip
Dip the formers in compounded nitrile latex; the longer the dip, the thicker the glove.
Materials for this step:
Compounded Nitrile Latex10 kgTools needed:
Glove Dipping Line3
3
Leach and bead
Leach and bead
Leach the film in warm water, then roll the cuff into a bead.
Tools needed:
Glove Dipping Line4
4
Cure and strip
Cure and strip
Cure the gloves in an oven, cool them and strip them from the formers.
Tools needed:
Curing Oven5
5
Finish
Finish
For powder-free gloves, chlorinate them or apply a polymer coating so they don easily.
Materials
2- 1 kgPlaceholder
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Tools Required
3- Placeholder
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