Why do Nitrile Gloves Turn Yellow?

The characteristics of nitrile gloves produced by Fengwang auto nitrile glove machine are:
1. Low ion content.
2. Free of protein.
3. It has no allergic reaction to human skin.
4. Non-toxic and harmless.
5. Sturdy and durable.
6. Good adhesion.

The nitrile gloves production process is complex. To produce high-quality nitrile gloves, each production process must be monitored in real time. The configuration of raw materials for nitrile gloves plays a decisive role. This requires the selection of high-quality nitrile rubber and the reasonable addition of chemical additives to enhance the gloves’ physical and chemical properties.

Why do Nitrile Gloves Turn Yellow?

Nitrile gloves machinery for sale. Nitrile gloves are widely used in various industries such as electronics, chemical engineering, hospitals, and scientific research due to their excellent physical and chemical properties. But sometimes it is found that nitrile gloves turn yellow. What’s going on?

Fengwang is a professional nitrile gloves making machine manufacturers. For more than 20 years, it has served over 1,000 domestic and foreign glove manufacturers. Provide customers with solutions to problems in the production of nitrile gloves. The reason for the yellowing of nitrile gloves is that the oxazole content in acrylonitrile is relatively high.

The common methods for analyzing the content of oxazole in acrylonitrile include chemical method, spectral method, and chromatographic method. However, the most effective method is the gas-mass spectrometry (GC-MS) experimental method. This method has been applied in the technical release of glove manufacturers to reduce the oxazole content in acrylonitrile, successfully solving the quality problem of yellowing of acrylonitrile polymerization products – nitrile and acrylic.

The content of oxazole in acrylonitrile is crucial. It directly affects the color and storage stability of nitrile gloves, as well as the color of the polymer materials after synthesis. So once the acrylonitrile oxazole content exceeds the standard, yellowing will occur. First, the color of the finished products is problematic. Second, the color will change after being stored for some time.

Apart from the reasons of raw materials, the yellowing or discoloration of the produced gloves may also be due to the need to optimize the production process: this situation could be caused by an excessively high vulcanization temperature, which needs to be adjusted to prevent local overheating and rubber oxidation. In addition, antioxidants can be added to prevent aging and discoloration.