TW202012253A - Paper container package and method for manufacturing the same - Google Patents

Abstract

A paper container package is provided, including: a paper layer; two plastic layers , the two plastic layers disposed on relative two sides of the paper layer; wherein each of the two plastic layers and the paper layer are formed at least one window in a thickness direction, the at least one window is light-permeable. A method for manufacturing a paper container package above is also provided, including the following steps of: preparing a paper material; making a hollowed window on the paper material; covering a plastic lamination layer on an inner side of the paper material; covering a plastic layer on an outer side of the paper material to form a paper container base material; cutting the paper container base material to form a plurality of paper container packages.

Description

Paper container packaging and its manufacturing method

The present invention relates to packaging, in particular to a paper container packaging and its manufacturing method.

General containers, such as bottles, paper containers, etc., are mainly used to contain liquids, for example.

The paper container of the prior art has a paper layer and a coating layer provided on the inner side of the paper layer. The paper layer is folded into a predetermined shape and is surrounded to form a chamber. The paper layer of the conventional paper container has a certain thickness to provide supporting force. However, the thickness of the paper layer is thick and the molding is not easy, so the shape of the paper layer can be limited. Furthermore, if the paper container of the prior art needs to open a window for observing the material in the container, a transparent material must be attached to the inside of the paper layer, which makes the processing steps cumbersome and difficult.

The plastic bottles of the conventional technology are mostly made of plastic, but their printing is not easy. Usually, another plastic sheet with a printed design is sleeved on the outer layer. Therefore, the conventional technology of the special bottle has a defect that is not easy to print.

Therefore, it is necessary to provide a novel and progressive paper container packaging to solve the above problems.

The main object of the present invention is to provide a paper container and a method for manufacturing the same, with a window for viewing the inside.

In order to achieve the above object, the present invention provides a paper container package including: a paper layer; two plastic layers, the two plastic layers are disposed on opposite sides of the paper layer; wherein each of the plastic layer and the paper layer are in the thickness direction The upper relatively composes at least one window, and the at least one window is transparent.

In order to achieve the above object, the present invention also provides a manufacturing method for paper container packaging, which includes: preparing a paper material; making a hollow window on the paper material; covering a plastic coating layer on one of the paper materials; A plastic layer is coated on one outer side of the paper material to form a paper container base material; the paper container base material is cut out and plural paper container packages are packed.

The following merely illustrates the possible implementation forms of the present invention with examples, but it is not intended to limit the scope of the invention to be protected, and will be described first.

Please refer to FIGS. 1 to 3, which show a preferred embodiment of the present invention. The paper container package 1 of the present invention includes a paper layer 10 and two plastic layers 20, 30.

The two plastic layers 20, 30 are disposed on opposite sides of the paper layer 10, at least one of the two plastic layers 20, 30 may be thicker than the paper layer 10; wherein, each of the plastic layers 20, 30 and the paper layer 10 At least one window 40 is relatively constructed in the thickness direction, and the at least one window 40 is light-transmissive. Thereby, it is provided that the at least one window 40 is formed in a simple processing step, and design graphics can be printed directly on the paper layer 10.

The number of the at least one window 40 is a plural number, and the plural window 40 is not limited to a square, it can be any shape, and is not limited to a linear or matrix arrangement; in this embodiment, the paper layer 10 corresponds to at least one window 40 is hollow Further description, the paper layer 10 corresponding to all the plural windows 40 may be hollow or non-hollow but transparent, or the corresponding part of the plural windows 40 may be hollow, and the plural windows 40 corresponding to other parts may be non-hollow But transparent. Of course, it is not excluded that any one of the two plastic layers 20, 30 corresponds to at least one of the windows 40 being hollow.

At least one of the two plastic layers 20, 30 is a thermoplastic, or the two plastic layers 20, 30 are both thermoplastics; in this embodiment, the two plastic layers 20, 30 are thermoplastics, of which the thermoplastic The plastic layer 20 of the plastic can be directly shaped into any shape, such as not limited to a box (as shown in FIG. 1) and a bottle, and its rigidity is greater than that of the paper layer 10 to provide a supporting effect and a waterproof function. The two plastic layers 20 and 30 are not limited to be hot-melted and attached to the paper layer 10.

Preferably, one of the two plastic layers 20, 30 is thicker than the paper layer 10, and the other is thinner than the paper layer 10. In this embodiment, the plastic layer 20 is 1.5 times thicker than the paper layer 10 The plastic layer 30 is 0.5 times thinner than the paper layer 10. The present invention does not limit the two plastic layers 20, 30 to be provided on either side of the paper layer 10. In this embodiment, the plastic layer 20 is provided outside a paper container, and the plastic layer 30 is provided inside the paper container. The plastic layer 20 can directly damage the paper layer 20 against external forces.

The plastic layer 20 is made of polyethylene terephthalate (PET), polyethylene (PE), polystyrene (PS), polylactic acid (PLA), or any mixture of the above. The plastic layer 30 is made of low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polyethylene (PE), polylactic acid (PLA), or any mixture of the foregoing.

The paper container package 1 further includes an enclosed chamber 50 and an opening 60 communicating with the chamber 50. The opening 60 is provided with two coupling pieces 61 that can be folded relatively and connected to each other.

Please refer to FIG. 4, which shows another preferred embodiment of the present invention. The difference between the paper container package 2 and the previous preferred embodiment is that an external thread structure 62 is provided on the periphery of the opening 60 for a removable cover Ground cover.

Please refer to FIG. 5 to FIG. 9, the present invention also provides a manufacturing method of paper container packaging, including the following steps: Step S1: prepare a paper 70; Step S2: create a hollow window 71 on the paper 70, the hollow The window 71 can be formed by cutting or punching by the stamping mechanism 3; Step S3: a plastic coating layer 80 is coated on the inside of one of the paper materials 70, which further explains that a film 5 is formed by heating and extruding by the extruder 4, The film 5 is the plastic film layer 80 coated on the paper 70, which is cooled and rolled by the rolling wheel 6; Step S4: a plastic layer 90 is coated on one outer side of the paper 70 to form a paper container Substrate 91, wherein the plastic layer 90 can be a plastic film layer or a plastic foam layer, in this embodiment, the plastic layer 90 is a plastic foam layer; further description is formed by heating and extruding through the extruder 4 to form a film 7 , The film 7 is the plastic layer 90 covered on the paper 70, cooled and rolled by the rolling wheel 6; Step S5: cutting the paper container base 91 to cut out at least one paper container package 92, the The number of the at least one paper container package 92 is plural. The plural paper container packages 92 are not limited to cups, but can also be boxes, bottles, etc. Further description, the paper container base 91 is cut by the cutting machine 8. Wherein, the window 71, the plastic layer 90 and the plastic film layer 80 at least partially overlap in the thickness direction. Thereby, various visual effects can be presented at the window 71, and at the same time, it has a heat insulation effect. The order of step S4 and step S5 is not limited.

To further elaborate, the plastic foam layer can be first bonded to the paper 70 with a plastic film and heat-resistant foam particles, and then baked and heated for foam molding, and can also be formed by stamping (such as hot stamping).纸材70. In addition, the plastic foam layer partially protrudes into the window 71 and connects to the plastic layer 90 to provide a visual change effect at the window 71 while enhancing the support force in the thickness direction.

Please refer to FIG. 10, which shows yet another preferred embodiment of the present invention. The manufacturing method of the paper container packaging further covers a plastic foam layer 93 on the plastic layer 90 and partially overlaps with the window 71. In this embodiment This improves the waterproof and thermal insulation effects and provides visual changes.

To further explain, the above-mentioned plastic foam layer 93 can be colored and formed with a surface uneven structure.

1,2,92: Paper container and packaging 3: Punching mechanism 4: Extruder 5, 7: Film 6: Roller 8: Cutting machine 10: Paper layer 20, 30, 90: Plastic layer 40, 71: Window 50: Chamber 60: opening 61: coupling piece 62: external thread structure S1~S5: step 70: paper material 80: plastic film layer 91: paper container base material 93: plastic foam layer

FIG. 1 is a perspective view of a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1. FIG. FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1. FIG. 4 is a perspective view of another preferred embodiment of the present invention. FIG. 5 is a flow block diagram of a preferred embodiment of the present invention. FIG. 6 is a manufacturing flowchart of a preferred embodiment of the present invention. 7 is a schematic diagram of a paper container substrate according to a preferred embodiment of the present invention. 8 is a perspective view of a paper container package according to yet another preferred embodiment of the present invention. 9 is a partial cross-sectional view of FIG. 8. 10 is a partial cross-sectional view of another preferred embodiment of the present invention.

1: Paper container packaging

40: Windows

60: opening

61: Combined piece

Claims (13)

A paper container package includes: a paper layer; two plastic layers provided on opposite sides of the paper layer; wherein each plastic layer and the paper layer relatively construct at least one window in the thickness direction, the at least one The window is transparent. The paper container package according to claim 1, wherein the paper layer corresponds to at least one window that is hollow. The paper container package according to claim 1, wherein the two plastic layers are thermoplastics. The paper container package of claim 1, wherein at least one of the two plastic layers is thicker than the paper layer, and at least one of the two plastic layers is 1.5 times thicker than the paper layer. The paper container packaging according to claim 1, wherein at least one of the two plastic layers is 0.5 times thinner than the paper layer. The paper container package according to claim 1, wherein the number of the at least one window is plural. The paper container package according to claim 1, wherein at least one of the two plastic layers is more rigid than the paper layer. The paper container packaging according to claim 7, wherein the two plastic layers are hot-melted on the paper layer; the paper layer corresponds to at least one window is hollow; the two plastic layers are thermoplastic; one of the two plastic layers One is thicker than the paper layer and the other is thinner than the paper layer; at least one of the two plastic layers is 1.5 times thicker than the paper layer; at least one of the two plastic layers is 0.5 times thinner than the paper layer; The number of the at least one window is plural; at least one of the two plastic layers is more rigid than the paper layer; one of the two plastic layers is polyethylene terephthalate (PET) and polystyrene (PS) , Polyethylene (PE), polylactic acid (PLA) or any of the above mixed materials, the other is low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), polyethylene (PE) , Polylactic acid (PLA) or any of the above mixed materials. The paper container as described in any one of claims 1 to 8, further comprising an enclosed chamber and an opening communicating with the chamber, the opening is provided with two which can be folded relative to each other and connected to each other Combine tablets. The paper container as described in any one of claims 1 to 8, further comprising a container chamber formed by an enclosure and an opening communicating with the container chamber, an outer threaded structure is provided on the periphery of the opening for a lid Removably cover. A manufacturing method of paper container packaging, including the following steps: preparing a paper material; making a hollow window on the paper material; covering a plastic coating layer on one inner side of the paper material; covering an outer side of the paper material A plastic layer is formed to form a paper container base material; the paper container base material is cut to cut out at least one paper container package; wherein the window, the plastic layer and the plastic coating layer at least partially overlap in the thickness direction. The method for manufacturing a paper container package according to claim 11, wherein the plastic layer is a plastic foam layer, and the plastic foam layer partially protrudes into the window and connects to the plastic layer. According to the manufacturing method of the paper container of claim 11, a plastic foam layer is further covered on the plastic layer and partially overlaps the window.

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