Baoshan Iron & Steel Co., Ltd.

Hua Ni

Hongxing Chen

Zhangwei Wang

Peng Li

Long Xie

Xiujun Li

A blended polyester laminating film resistant to discoloration caused by cooking, comprising polyethylene terephthalate and polybutylene terephthalate. The blended polyester laminating film comprises three layers, i.e., upper, middle, and lower layers. One surface layer contains SiOin a mass fraction of 1200-2000 ppm added by in-situ polymerization. The blended polyester laminating film is manufactured by a three-layer coextrusion biaxial stretching method, and the manufacturing method is 240-275° C. A film-laminated metal sheet manufactured from the blended polyester laminating film has excellent resistance to discoloration caused by cooking, and is applied to metal containers for food and beverage packaging that require high-temperature sterilization.

Laminating film resistant to discoloration caused by cooking, and film-laminated metal sheet

Provided is a method for producing a film-coated metal plate, comprising the steps of: (1) pre-heating and soaking a metal plate; (2) laminating a film on the metal plate, with a deflector roller configured to be movable in a horizontal direction to adjust an angle &#x3b1; between the metal plate and a vertical direction; (3) cooling the metal plate; (4) compressing the metal plate to dry it; (5) reheating and post-processing the metal plate. A device for producing a film-coated metal plate is also provided, which comprises: an induction heating apparatus, a deflector roller () configured to be movable in a horizontal direction to adjust an angle &#x3b1; between the metal plate and a vertical direction, a thin film guide roller (), a film-coating roller (), a cooling apparatus (), a compressing and drying roller (), a reheating apparatus () and an air cooling apparatus ().

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Shanghai, China

Hua Ni