When it comes to disposable gloves, the first thing many people think of is latex gloves, because latex gloves have been widely used in medical and industry for many years. The raw material of latex is natural rubber, which is taken from the sap of rubber trees. The farmers collect the latex and then take it to the factory to continue production. The manufacture of latex gloves usually goes through the following 9 steps:
1. Preparation of latex:
Latex gloves are derived from natural rubber latex, not 100% purity. The reason is that manufacturers add a variety of chemical ingredients to natural latex in the early stages of the production process. This step improves the elasticity of latex products and makes the performance of latex materials more stable, so that the shelf life is extended.
2. Clean the hand mold:
The manufacturer makes gloves with ceramic molds. The first thing to do is to clean the hand mold with water and bleach. This step ensures that there is no residue left by the previous production process on the hand mold. Then immerse the hand mold in a chemical solution containing calcium carbonate and nitrate to make the latex better bond.
3. Latex dipping:
When the hand mold is ready, the manufacturer will immerse it in a container filled with latex. The length of time the hand mold is immersed in the pool depends on the thickness of the glove.
4. Vulcanized rubber:
Enter the oven to dry and cure the hand mold to ensure that the rubber does not break during the drying process. The vulcanization process of latex rubber is very critical.
5. Glove extraction:
In this process, the gloves are immersed in a sink to remove excess latex protein to reduce the risk of allergies and improve the feeling after wearing the gloves.
6. Curled cuffs:
When the glove extraction process is completed, the glove cuff will be rolled up to facilitate the removal. After the gloves are crimped, extraction may be performed again.
If there is powder in the glove, it will be put into the wet corn starch slurry. Then the manufacturer dries the gloves again.
8. Chlorinated or polymer coated gloves:
If it does not contain powder, alternative processes can be used to facilitate wearing. One is chlorination to prevent adhesion of latex. Second, apply high polymer to make the surface smooth. These two methods can reduce the chance of protein allergy.
9. Unloading gloves:
When the gloves were made, the workers took off the gloves from the hand mold.
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