Abstract: A method for manufacturing a vesicant cup includes a cut fan-shape vesicant plate having thinner upper and lower arcs formed as upper and lower edges. The vesicant plate is rolled and pressed on two stacking joints formed on left and right edges of the vesicant plate respectively. The pressed joints are thinner than other portions of the cup body not being pressed. A lip is formed by rolling up the upper edge outward, and a bottom join is formed by folding up the lower edge inwards. An edge of a vesicant cup bottom is bent downwards as a round joint for connecting and sealing the bottom joint of the vesicant cup body. A thickness of the round joint, bottom joint and the vesicant cup body corresponding to the round joint is thinner than other portions of the vesicant cup body not being pressed.

Abstract: A spread structure of a multiple layers container and the multiple layers container includes at least one paper layer and at least one vesicant layer. The paper layer and the vesicant layer are made by a unitary plate of cardboard sticking to a vesicant plate being pressed by mold, cut, and formed. A predetermined sticking portion on a spread substrate of the paper layer and the vesicant layer is pressed so that a thickness thereof is thinner than any other portions not being pressed or approximate to a thickness of the paper layer. Such substrate can be applied to a conventional container making machine for further processes.

Abstract: A structural improvement for a cup container includes the following structures. An internal layer paper cup having an internal paper cup bottom is bonded to a bottom of the cup container. A foam layer is bonded to an exterior of the internal layer paper cup. An external layer paper cup then is bonded to an exterior of the foam layer. A foam bottom and an external paper cup bottom are bonded to an external bottom of the internal paper cup bottom in order. The internal surface of the internal layer paper cup and an upper of the internal paper cup bottom are coated with waterproof layers. The foam material of the foam layer can be a biodegradable material, or non-biodegradable materials. The foregoing waterproof layers can be a biodegradable material, or can be a non-biodegradable material.

Abstract: A method of fabricating a substrate of a paper-made food container includes: (1) a paper layer of an original paper roll is processed with preheating and electrostatic process in advance, and a gelatin film then is coated on a single face lamination or double face lamination of the paper layer to form a complex layer. Alternatively, the double face lamination does not to be coated. The gelatin film is biodegradable material or non-biodegradable material. (2) Biodegradable material or non-biodegradable material is utilized to prepare an electronic cross-linked foam layer as a roll. (3) The complex layer is conveyed to the continuous thermal laminator. The thermal processing device of the continuous thermal laminator then is utilized to perform melting point heating for one face lamination or double face laminations of surfaces between the complex layer and the electronic cross-linked foam layer.

Abstract: A method of manufacturing an environmental protection container includes the following steps: PLA (poly lactic acid) or biodegradable raw materials are made to become a film. The film is a film bundle or an extended roll. The film then is rolled up and placed into a mold to process with in-mold crystallization and modification. By using in-mold crystallization procedure, biodegradable molecules can resist heat to achieve 120 degree centigrade after modification. The crystallization procedure can be processed in the mold and the film can be directly stamped and formed according to required shapes after modification, thereby enhancing heat resistance and increasing environmental protection efficiency for the environmental protection container.

Abstract: A bio-degradable cup includes an IXPE foam cup and a paper cup which is securely received in the foam cup. The paper cup includes a bio-degradable film coated to an inside thereof. The paper cup is made from a paperboard with a bio-degradable film coated and the paperboard is cut, folded and heat-pressed to be the paper cup. The foam cup is made from a foam board made by IXPE and the foam board is cut, shaped and folded into pieces and each piece is made to be the foam cup by way of heat pressing. A heat treatment is applied to an inside of the foam cup to obtain a sticky inner surface of the foam cup and the paper cup is securely connected to the sticky inner surface of the foam cup. A lip is made around an outer top edge of the foam cup.

Abstract: A bio-degradable cup includes a foam cup and a paper cup which is securely received in the foam cup. The paper cup includes a bio-degradable film coated to an inside thereof. The paper cup is formed by cutting a paperboard and folded to be the paper cup. The foam cup is made by preparing a foam board made by bio-degradable plastic which is treated by way of super-critical carbon dioxide extrusion, the foam board is cut into pieces and each piece is made to be the foam cup. The foam cup is applied with a heat treatment to obtain a sticky inner surface to which the paper cup is securely connected. A lip is formed around an outer top edge of the foam cup.

Abstract: A method for manufacturing a biodegradable paperboard includes the steps of: a. neutralizing the static electricity of a paperboard after the paperboard being preheating; b. smearing a biodegradable film onto the surface of the paperboard by a laminating machine; c. extruding the biodegradable film into the fiber of the paperboard to make a tight attachment by a double metal roller set with heating devices installed inside the rollers; d. forming the paperboard by the extrusion of a cooling roller set for further process for producing paper containers for food.

Abstract: A method for making a paperboard includes a first process and a second process, wherein the first process includes steps of making a coating liquid by mixing bio-degradable liquid and primer, arranging the coating liquid in a container, sending the coating liquid to a roller unit by rollers and transporting the coating liquid to a printing unit by the roller unit. The second process includes steps of pre-heating the paperboard and eliminating static electricity from the paperboard, coating the coating liquid on the paperboard by the printing unit, one of rollers of the printing unit coating one or two sides of the paperboard with the coating liquid, pressing the paperboard to a desired shape and drying the paperboard.

Abstract: A paperboard assembly for food box includes a piece of paperboard and a layer of cross linker is attached to at least one of inner surface and outer surface of the paperboard. At least one bio-degradable surface layer is attached to the layer of cross linker by way of heat-and-press. The At least one bio-degradable surface layer is made by way of supercritical CO2 Microcellular Foaming in Extrusion Process.

Abstract: An environmental protection paper material structure for food containers and its manufacturing method include a paper layer roll printed and coated with a first crosslinker coating in compliance with the laws and regulations of an adhesive for food packaging on both surfaces by a roll printing method, and a biodegradable material layer coated on the surface of the two first crosslinker coatings by a film coating method, and a second crosslinker coating and an anti-adhesive coating roll-printed and coated on upper and lower external layers. The anti-adhesive coating at the external layer effectively prevents the biodegradable material layer from being in a direct contact with the moisture in the air or becoming sticky due to a temperature rise before the environmental paper material is cut into different shapes of paper containers or rolled or stacked for storage, and the paper material can be used directly for hot pressing and shaping.

Abstract: A method for making the bio-degradable paper board includes a step of pre-heating and the paper roll and removing static electricity from the paper roll by way of corona treatment; a step of pre-heating the bio-degradable material to be liquid status; a step of extruding the bio-degradable material to be foam type layer and coating the foam type layer on the paper roll; a step of cooling the foam type layer by cooling rollers which evenly press the layer on the paper board; a step of cooling the layer on the paper board by cooling rollers and treated by another corona treatment, and a step of cutting the paper board into desired sections.

Abstract: A method for making the paper board includes a step of pre-heating and the paper roll and removing static electricity from the paper roll by way of corona treatment; a step of pre-heating the bio-degradable material to be liquid status; a step of extruding the bio-degradable material to be foam type layer and coating the foam type layer on the paper roll; a step of cooling the foam type layer by cooling rollers which evenly press the layer on the paper board; a step of cooling the layer on the paper board by cooling rollers and treated by another corona treatment, and a step of cutting the paper board into desired sections.

Abstract: A method for making the paper board includes a step of pre-heating and the paper roll and removing static electricity from the paper roll by way of corona treatment; a step of pre-heating the bio-degradable material to be liquid status; a step of extruding the bio-degradable material to be foam type layer and coating the foam type layer on the paper roll; a step of cooling the foam type layer by cooling rollers which evenly press the layer on the paper board; a step of cooling the layer on the paper board by cooling rollers and treated by another corona treatment, and a step of cutting the paper board into desired sections.

Abstract: A bio-degradable paper board includes a paper board and a bio-degradable layer is coated to the paper board by extrusion-coating machine. The bio-degradable layer is a layer of Polylactic Acid (PLA), Polyethylene Terephthalate (PET) or corn starch.

Abstract: A paperboard-made food container includes a base with four sidewalls and a V-shaped main ridge extends from an inner bottom of the base. A V-shaped first groove is defined in an outer bottom of the base and located corresponding to the main ridge. A plurality of elongate slots are defined through the bottom of the base and a V-shaped separation ridge is connected to the inner bottom to cover the slots. A plurality of second grooves are defined in the outer bottom of the base and located corresponding to the separation ridges. A cover is connected to one of the four sidewalls of the base. The bases can be conveniently overlapped with each other by engaging the main ridge with the first groove and engaging the separation ridges with the second grooves.

Abstract: A method for making paperboard food containers (10) includes a step of preparing a piece of paperboard; a step of exposing the paperboard in high temperature of vapor to increase moisture content in the paperboard; a step of molding the paperboard, and a step of trimming the paperboard. The paperboard food container includes a base with periphery wall and rounded corners. At least one separation ridge extends from a top surface of the base.

Abstract: A food box includes a base having a bottom with two parallel first side walls and two parallel second side walls. Four folding corner portions are connected between the first and second side walls so that the first and second side walls are able to be folded upright to enclose a space for receiving food therein. A cover is mounted to the base and has a window defined therethrough. A transparent film is attached to an inside of the cover and covers the window.