Recently, the University of Norwich-Gamm, the company Eltek, which manufactures lasers, and Elopa, which manufactures carton packs, have collaborated on the use of UV lasers for industrial applications, polyethylene pre-pressed and aluminum-coated paperboard containers. Bacterial spores on the inner surface are sterilized.
Studies have found that using a laser to emit ultraviolet light can quickly and effectively sterilize carton packs. It only takes 5 seconds to completely eliminate bacterial spores from carton packs, and does not require the use of hydrogen peroxide. Studies have shown that if hydrogen peroxide remains in carton packs for food and beverages, the shelf life of the product will be significantly reduced.
Although it is possible to manufacture laser sterilizers by commercial production at present, it is difficult to do so because of the excessive cost. However, high-power ultraviolet laser sterilizers have been applied in the micro-mechanical industry, and have generally been surface-sterilized in the fields of food and pharmaceuticals, and the cost is relatively low.
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