Method for preparing paper cup
AssigneeShanghai Xinyu Paper Cup Co., Ltd.
InventorJianying Ruan
Life of this patent
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Abstract
A paper cup, including: a cup body including a surface, and a base. A plurality of uneven stiffeners are arranged on the surface of the cup body. A method for preparing the paper cup includes: 1) selecting polyethylene (PE) or polylactic acid (PLA) coated paper as a raw material, the PE or the PLA coated paper including: a coated side, and a printed side; 2) printing a figure on the printed side of the PE or the PLA coated paper; 3) embossing uneven stiffeners on the paper via an embossing device; 4) cutting the paper into a shape of a section as a cup body via a die cutting machine; 5) shaping the cup body and the base into the paper cup via a molding machine; and 6) sterilizing, and packaging the paper cups.
Claims1
A method for preparing a paper cup comprising the following steps:
- a) selecting polyethylene (PE) or polylactic acid (PLA) coated paper as a raw material, the PE or the PLA coated paper comprising:
- a coated side, and a printed side;
- b) printing a figure on the printed side of the PE or the PLA coated paper;
- c) embossing uneven stiffeners on the paper via an embossing device comprising a smooth cylinder and a special cylinder, wherein the special cylinder comprises uneven shapes arranged on a surface;
- d) cutting the paper into a shape of a section as a cup body via a die cutting machine;
- e) shaping the cup body and a base into the paper cup via a molding machine;
- and
- f) sterilizing, and packaging the paper cup,
- wherein step c) comprises:
- c1) placing the coated side of the PE or the PLA coated paper on a surface of the smooth cylinder, and placing the printed side of the PE or the PLA coated paper on a surface of the special cylinder;
- c21) heating the special cylinder via a hot pressure, or heating the printed side of the PE or the PLA coated paper via an infrared ray;
- and embossing the printed side via the special cylinder;
- and
- c22) placing the paper after being embossed into cooling equipment for fixing the uneven stiffeners;
- wherein a temperature of the special cylinder after being heated is determined by the molecular structure and the density of the PE or the PLA;
- wherein a temperature of the smooth cylinder is determined by a melting point of the raw material.
Dependencies are inferred from the claim text.