What is film on tray?

The term "film on tray" can refer to multiple things depending on the context, but it's commonly associated with two main areas: photography and packaging.

1. Photography and Film Development:

   • In traditional photography, film on a tray refers to the process of developing photographic film using a darkroom setup. This involves placing the film onto a tray that contains chemicals to develop the images. The film is moved between trays with different chemicals for developing, stopping, and fixing the image.

2. Packaging:

   • In packaging, film on tray refers to the use of a plastic film to cover and seal the contents on a tray. This is commonly seen in food packaging where a plastic film is sealed over a tray containing food products to ensure freshness, protect against contamination, or extend shelf life. This technique is widely used in the food industry, especially for ready-made meals or supermarket meat products.

If you have a more specific context or industry in mind, feel free to provide additional details for more tailored information.