TWM556563U - Laminate structure for making thermal insulation container - Google Patents

Abstract

A laminated structure for making an insulated container, comprising: a paper layer defining a central region and a marginal region on a periphery of the paper layer and surrounding the central region; a polymer layer formed at least in the central region And on the surface of the paper layer adjacent to the marginal region; and the foamed sheet is floated on the central region of the paper layer, wherein the foamed sheet is adjacent to the marginal region in the central region and the polymerization The layer of the layer is bonded.

Description

Laminated structure for making insulated containers

The present invention relates to the manufacture of an insulated container, and more particularly to a device and tool structure for preparing the insulated container and a laminated structure for making the insulated container.

With the development of science and technology civilization, modern people's requirements for quality of life have increased. For food and drink, the convenience of food and drink is more convenient, and thus the convenience food with higher convenience is derived. Usually, in order to achieve the convenience of use, these fast foods are often used in disposable disposable containers. However, the heat preservation effect of the container usually used for the instant food is not good. Under normal temperature environment, the food will lose the original cold or warm temperature sense in a short time, so that the taste is lowered and even deteriorated.

In the early days, in order to maintain the original flavor of these convenient instant foods, a foaming material having a better heat insulating effect, for example, a styrofoam, is often used as a material for a disposable container for containing instant food. However, styrofoam is extremely energy intensive in production and not environmentally friendly.

Therefore, at present, a foaming material made of, for example, expanded polystyrene is formed on the outer side of the paper container body to prepare a paper heat insulating container.

As shown in Fig. 1, a conventional paper insulated container 1 includes a paper container body 10 having a waterproof layer 100 therein; an adhesive layer 11 formed on the paper The outer surface of the container body 10; and the foaming material 12 are attached to the paper container body 10 by the adhesive layer 11, so that the conventional paper heat insulating container 1 has a heat insulating effect.

At present, the paper thermal insulation container generally has two manufacturing methods, one of which is attached to the outer side of the paper container to adhere the thermal insulation material to achieve the effect of heat preservation, and the second is to coat the foaming material to be foamed on the outer side of the paper container, and then foaming. To obtain a paper insulated container with a heat insulating material on the outside of the paper container.

Considering the thickness or foaming conditions of the foamed material, if a foamed material is formed on the entire surface of the semi-finished product of the paper container, it is necessary to separately design a different processing container for the heat-insulating container, and it is not possible to process it with the existing paper container processing machine. Therefore, in the process of the conventional insulated container, a paper container is prepared first, and the foamed material is attached to the paper container.

Therefore, how to use a general paper container processing machine to produce a paper insulated container with insulation function is an industry-needed developer.

Accordingly, the present invention provides a cutter structure for cutting a foamed material, comprising: a body; a blade portion extending from a length direction of the body; and a nip for pressing the foamed material, It is disposed on the body and is located on one side of the blade.

The present invention provides an apparatus for fabricating a laminated structure of an insulated container, comprising: a transport unit for carrying and transporting a paper substrate and a foamed sheet placed on the paper substrate, and having a transport unit disposed thereon a die unit of a cutter structure as described above, wherein the nip portion and the blade portion face the foamed sheet, so that the nip portion presses a portion of the foamed sheet It is laminated to the paper substrate which is used to break the foamed structure of the periphery of the foamed sheet which is laminated on the paper.

The present invention further provides a laminate structure for fabricating an insulated container, comprising: a paper layer defining a central region and a marginal region on a periphery of the paper layer and surrounding the central region; at least formed in the central region, and a polymer layer on a surface of the paper layer adjacent to the marginal region; and a foamed sheet floating on a central region of the paper layer, wherein the foamed sheet is adjacent to the marginal region in the central region The polymer layer is bonded.

In a specific embodiment of the laminated structure for making an insulated container of the present invention, the marginal region has opposite curling portions and bottom edge portions, and opposite first and second overlapping portions, and the first Each of the overlap portion and the second overlap portion connects both ends of the curl portion and the bottom edge portion.

In an embodiment of the foregoing embodiment, the laminated structure for making the thermal insulation container further comprises a leveling member made of a material such as a foaming material, and is formed at a joint between the curling portion and the second overlapping portion.

In another embodiment of the foregoing embodiment, the curling portion has a notch adjacent to the second overlapping portion, and the connection is made when the first overlapping portion and the second overlapping portion are overlapped A portion of the first overlapping portion of the curled portion is not overlapped with the second overlapping portion.

In a specific embodiment of the laminated structure for making an insulated container of the present invention, the edge of the foamed sheet has a foam breaking structure.

The design utilizes a cutter structure having a nip portion and a blade portion to simultaneously apply heat and pressure to the foam sheet when cutting the foam sheet. Adhesion to the polymer layer on the paper substrate.

Since the laminated structure for making the insulated container of the present invention floats the foamed sheet only in the central region, the marginal region has only the paper layer itself or additionally has the thickness of the polymer layer. Therefore, it can be processed by using a general paper container processing machine without being affected by the thickness of the foamed sheet. The laminated structure for the production of the insulated container of the present invention is capable of laminating the foamed sheet by floating, and when the recycling is required, the foamed sheet can be easily removed to facilitate the recovery of the paper container.

Furthermore, the present invention forms a leveling member, such as a foaming material, at a position adjacent to the second overlapping portion of the curling portion, so that it can be used for subsequent lamination and crimping processing using the paper container processing machine. The heat during processing enables the leveling member to be slightly melted or softened to overflow to the overlap of the curl portion corresponding to the first and second overlap portions to compensate for the thickness of the conventional paper container at the overlap The resulting difference.

The present invention has a gap between the curled portion and the second overlap portion to avoid a step difference caused by the thickness of the conventional paper container at the overlap.

In summary, the laminated structure for making the insulated container of the present invention is not only widely applicable to the conventional paper container processing machine, but also the foamed sheet is only attached by floating, and the paper container body and the hair are separated. When the sheet is blistered, the two can be easily separated to increase the convenience of resource recovery. In addition, the paper insulated container of this creation can be improved through the specially designed curling part to improve the sealing of the liquid.

1‧‧‧Chinese paper insulation container

10‧‧‧paper container body

100‧‧‧Waterproof layer

11‧‧‧Adhesive layer

12‧‧‧Foam material

2A, 2B, 2C-1, 2C-2, 3, 3', 410‧‧‧ tool structure

2A-2A, 2D-2D, 3B-3B, 7B-7B, 8B-8B, 9B-9B‧‧‧ hatching

20,20’,30‧‧‧ ontology

21, 21’, 21”, 31‧‧ ‧ Blade

21b, 21b’, 21b”‧‧‧ cut face

22,22’,32‧‧‧ nip

22a, 21a‧‧‧ side

22b, 22b', 22b" ‧ ‧ 压 压

40‧‧‧Conveying unit

40’,412,412’‧‧·roller

41,41’,41”‧‧‧ die unit

411‧‧‧heater

413‧‧‧Cutter

42‧‧‧Winding unit

42’‧‧‧ Collector

43‧‧‧Cut unit

50‧‧‧paper substrate

51,510,511,511a‧‧‧foam sheet

6,6',7‧‧‧Laminated structure for making insulated containers

60,501‧‧‧paper layer

60c‧‧‧Central area

60e‧‧‧ marginal area

600‧‧‧ polymer layer

601,601’‧‧‧ curling department

601a‧‧‧First overlap

601b‧‧‧Second lap joint

603‧‧‧ bottom edge

62‧‧‧Foam sheet

62’‧‧‧Levels

62a‧‧‧ edge

72‧‧‧ recess

D1, d2‧‧‧ width

D3‧‧‧ distance

G‧‧‧ spacing

H1, h2‧‧‧ height difference

Θ‧‧‧ angle

1 is a cross-sectional view showing a conventional paper insulated container; and FIGS. 2A-1 to 2D are views showing an embodiment of the tool structure of the present invention, wherein the 2A-1 figure shows the tool structure of the present creation. 2A-2 is a cross-sectional view taken along line 2A-2A of FIG. 2A-1, and FIG. 2B is a schematic view showing another embodiment of the tool structure of the present invention, 2C-1 A schematic view of another embodiment of the tool structure of the 2C-2 diagram, and a 2D diagram showing a section taken along section line 2D-2D of FIG. 2A-1; FIGS. 3A-3B' A schematic view showing another embodiment of the tool structure of the present invention, wherein FIG. 3A is a perspective view showing the tool structure of the present creation, and FIG. 3B is a schematic cross-sectional view taken along line 3B-3B of FIG. 3A. And FIG. 3B' is a schematic cross-sectional view showing another embodiment of the tool structure of the present invention; and FIG. 4 is a flow chart showing the operation of the apparatus for fabricating the laminated structure of the insulated container; FIGS. 5A to 5C A side view showing the apparatus for making a laminate structure of the insulated container of the present invention Figure 5B is a cross-sectional view showing a die unit of the apparatus for producing a laminated structure of the present invention, and a sectional view showing a winding unit of the apparatus for producing a laminated structure according to the fifth embodiment; Figs. 6A to 6B BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing an embodiment of a die unit of the apparatus for fabricating a laminated structure of an insulated container, wherein Figure 6B shows a die of the apparatus for fabricating a laminated structure of the insulated container of the present invention. A schematic diagram of another embodiment of a unit; 7A to 7B are views showing an embodiment of the laminated structure for making an insulated container of the present invention, wherein FIG. 7B is a cross-sectional view taken along line 7B-7B of FIG. 7A; 8A to 8B are views showing another embodiment of the laminated structure for making an insulated container of the present invention, wherein FIG. 8B is a cross-sectional view taken along line 8B-8B of FIG. 8A; 9A to 9B are views showing another embodiment of the laminated structure for making an insulated container of the present invention, wherein Fig. 9B is a cross-sectional view taken along line 9B-9B of Fig. 9A.

The present invention is fully understood by reference to the following detailed description and exemplary embodiments, which are intended to illustrate non-limiting embodiments of the present invention.

It is to be understood that the structure, the proportions, the size and the like of the drawings are only used in conjunction with the disclosure of the specification for the understanding and reading of those skilled in the art, and are not intended to limit the implementation of the present invention. The qualifications, the modification of any structure, the change of the proportional relationship or the adjustment of the size, should not fall under the purpose of the creation and the purpose of the creation, should still fall within the technical content revealed by this creation. Within the scope of coverage. In the meantime, the terms "upper", "first", "second" and "one" as used in this specification are for convenience only, and are not intended to limit the scope of the creation of the creation. Changes or adjustments in their relative relationship are considered to be within the scope of the creation of the creation of the product without substantial changes.

Please refer to Figures 2A-1, 2A-2, 2B, 2C-1, 2C-2, 2D and 3, The tool structure 2A, 2B, 2C-1, 2C-2, 3, 3' for cutting the foamed material of the present invention comprises: a body 20, 20', 30; from the body 20, 20', 30 One of the blade portions 21, 21', 21", 31 formed by extending in the longitudinal direction; and nip portions 22, 22', 32 for pressing the foamed material are provided on the body 20, 20', 30 It is located on one side of the blade portion 21, 21', 21", 31.

In the embodiment shown in FIG. 2A-1, the nip 22 is a flat rectangular parallelepiped having a side surface 22a having a pressing surface 22b for contacting the object to be cut, the pressing surface having a width d1. The blade portion 21 is a sheet body having a side surface 21a having a cutting surface 21b for contacting the object to be cut, which is capable of damaging the structure of the object to be cut, the cutting surface 21b having a width d2. In this embodiment, the blade portion 21 and the nip portion 22 are spaced apart from each other. For example, the blade portion 21 and the nip portion 22 respectively have an end in a direction away from the body 20, and a spacing G is provided between the two ends. . The distance d3 of the pitch is 0.5 to 10 mm. In an embodiment of the present invention, the distance d3 of the pitch G is 1/4 to 2 times the thickness of the foamed material.

In the embodiment shown in Fig. 2B, the blade portion 21' of the cutter structure 2B is tapered at the corresponding cutting face 21b', i.e., the width of the end of the blade portion 21' is formed to form a blade edge.

Referring to a specific embodiment of the present invention, the nip portion and the blade portion of the cutter structure are formed by extending from a longitudinal direction of the body (as shown in the downward direction). The portion has a slope or a curved surface and is connected to the end of the blade portion away from the body. For example, as shown in Figures 2C-1 and 2C-2, the blade portion 21' has an end in a direction away from the body 20', and the nip 22' has a proximal end toward the body 20' It The inclined surface or the curved surface extending in the direction, the nip portion 22' and the blade portion 21' are not spaced apart, and as shown in the second C-1, the pressing surface 22b' is a curved surface or a concave curved surface, such as the 2C As shown in Fig. 2, the pressing surface 22b" is a slope. In this embodiment, when the pressing surface 22b' is a curved surface or a concave curved surface, the end of the blade portion 21' to the pressing surface 22b' There is a height difference h1 between the top ends, and the height difference h1 is smaller than the thickness of the foaming material to be cut. Specifically, the minimum value of the height difference h1 is 80% of the thickness of the foaming material to be cut. %, 70% or even 60% of the thickness.

In the foregoing embodiment, when the pressing surface 22b" is a sloped surface, the angle θ formed by the inclined surface and the horizontal plane of the foaming material to be cut is greater than 0° to 45°, more preferably 15° to 20°. a height difference h2 between the end of the blade portion 21' and the top end of the pressing surface 22b", the height difference h2 being smaller than the thickness of the foaming material to be cut, for example, based on the thickness of the foaming material to be cut. The minimum value of the height difference h2 is 80%, 70% or even 60% of the thickness.

In another embodiment of the present invention shown in FIG. 2D, the blade portion has an end in a direction away from the body, and the end portion has a zigzag contour, that is, the blade portion is a serrated blade edge, that is, Cut along the section line 2D-2D of Fig. 2A-1, the blade edge of the blade portion 21' is serrated.

3A to 3B', wherein FIG. 3A is a perspective view of the original tool structure 3 inverted. In an embodiment, the blade portion 31 is an annular structure, and the nip 32 is located. The inner side of the annular structure is also a ring structure.

It can be seen from the 3B of the section line 3B-3B that the blade portion 31 is pressed. The hinge 32 has a spacing G at the end remote from the body.

In the embodiment of the present invention, the width d1 of the nips 22, 32 is 0.5 to 20 mm, and the width d2 of the blade portions 21, 31 is 0.1 to 2. The blade portions 21, 31 are pressed together. The distances d3 of the portions 22, 32 from the ends of the bodies 20, 30 from the G are 0.5 to 10 mm. In a more preferred embodiment, the width d1 of the nip 22, 32 is 2 to 2.5 mm, and the width d2 of the blade 21, 31 is 0.2 to 0.3 mm, and the blade 21, 31 and the pressure The distances d3 of the hinges 22, 32 from the ends of the bodies 20, 30 from the G are 0.5 to 1.5 mm.

In addition, in one embodiment of the tool structure of the present invention, the nip is integrally molded from the body.

In addition, since the tool structure of the present invention is designed for a foamed material having a thickness, when the nip portions 22, 32 have a pitch G between the blade portions 21, 31, the distance of the pitch G is The thickness of the foamed sheet is defined, specifically, the distance between the blade portions 21, 31 and the nip portions 22, 32 is 1/4 to 2 times the thickness of the foaming material to be cut, and when the press is pressed When there is no space between the portion 22' and the blade portion 21', the pressing surface 22b', 22b" of the pressing portion 22' has a height difference from the end of the blade portion 21', and the height difference is The thickness of the foamed sheet is defined, for example, the minimum of the height difference is 80%, 70% or even 60% of the thickness of the foamed material to be cut.

Further, in the tool structure of the present invention, another nip (not shown) is included to press a portion of the foamed sheet to be laminated to the paper substrate to form various patterns.

Please refer to Fig. 4 and Fig. 5A for explaining the operational flow of the apparatus for fabricating the laminated structure of the insulated container of the present invention. First, the paper and the foamed sheet are conveyed and supplied by the transport unit 40, followed by the die having the cutter structures 2A, 2B, 2C-1, 2C-2, 3, 3' as described in the foregoing 2A to 3B' drawings. The unit 41 laminates a portion of the foamed sheet to the paper substrate. Specifically, the cutter structure 2A, 2B, 2C-1, 2C-2, 3, 3' includes a nip portion 22, 22', 32 and a blade portion adjacent to the nip portion 22, 22', 32 21, 21', 21", 31, wherein the nip 22, 22', 32 and the blade portions 21, 21', 21", 31 are oriented toward the foamed sheet 51 such that the nip 22 , 22', 32 presses the portion of the foamed sheet 51 to be attached to the paper substrate 50, and the blade portions 21, 21', 21", 31 are used to break the hair that is spliced on the paper. The foamed structure of the foamed sheet 511a at the periphery of the blister sheet 511 is then recovered by the winding unit 42, such as a roll, the foamed sheet 510 that is not affixed to the paper substrate 50, thereby The foamed sheet 511 laminated on the paper substrate 50 is separated from the foamed sheet 510 which is not laminated to the paper substrate 50, and finally from the paper base by, for example, a cutting unit 43 having a cutter 413. The paper on which the foamed sheet 511 is laminated is separated from the material 50 to obtain a laminated structure in which the foamed sheet is carried on the paper.

In this embodiment, the transport unit 40 can be a conveyor belt or other machine that can transport and/or provide the paper substrate 50 and the foamed sheet 51 independently or separately. In this embodiment, the hair unit A foam sheet 51 is placed on the paper substrate 50. In the present embodiment, a winding unit 42 and a cutting unit 43 are sequentially disposed downstream of the die unit 41, wherein the cutting unit 43 can be integrated with the die unit 41, for example, the die unit 41 in addition to the aforementioned cutter In addition to the structure, another cutting die (not shown) having an annular structure is designed on the periphery of the annular structure of the blade portion of the cutter structure. In addition to the foregoing embodiment, the cutting unit 43 may be independently disposed on the After the die unit 41 and the winding unit 42.

Further, in the present embodiment, the paper substrate is a paper in which a polymer layer (e.g., a water repellent layer) is formed on both surfaces (two surfaces) as shown by the thicker lines in the drawing.

Please refer to FIG. 5B, which is a schematic cross-sectional view of the die unit 41 of the present invention. The die unit 41 has the cutter structures 2A, 2B, 2C-1, 2C-2, 3 as described in the foregoing 2A to 3B'. In one of 3', the die unit 41 is used to laminate a portion of the foamed sheet 511 to the paper substrate 50.

In the embodiment, the die unit 41 has a heater 411 in addition to the cutter structure 410 to provide a heat source for heating the cutter structure to facilitate lamination and bonding of the foamed sheet 51 and the paper base. At the time of the material 50, a tear line is formed on the foamed sheet 51. In the foregoing embodiments, the heat source may be provided by indirect heating or direct heating, for example, assembling the cutter structure to the fusion end of the ultrasonic fusion splicer, or for example, to be mounted on a high-frequency cutting machine or ultrasonic cutting. The knife of the machine is replaced by the tool structure 410 of the creation to facilitate the lamination of the foamed sheets. In addition, in the embodiment, the die unit of the present invention is a planar die cutting machine.

Specifically, the cutter structure 2A, 2B, 2C-1, 2C-2, 3, 3' includes a nip portion 22, 22', 32 and a blade portion adjacent to the nip portion 22, 22', 32 21, 21', 21", 31, wherein the nip 22, 22', 32 is used to laminate a portion of the foamed sheet 511 to the paper substrate 50, the blade portion 21, 21' , 21", 31 is used to break the foaming on the paper substrate 50 The foamed sheet 511a on the periphery of the sheet 511 has a foamed structure (that is, the foamed sheet is melted or broken), so as to be between the foamed sheets 510 and 511 (i.e., the periphery of the foamed sheet 511). A tear line is formed on the foamed sheet 511a.

A cross-sectional view of the winding unit 42 of the present invention as shown in FIG. 5C, the winding unit 42 is configured to wind up the foamed sheet 510 that is not overlapped on the paper substrate 50, thereby causing the overlapping The foamed sheet 511 on the paper substrate 50 is separated from the foamed sheet 510 which is not laminated to the paper substrate 50.

Specifically, since the die unit 41 (see FIG. 5B) of the present invention has been applied to the foamed sheet 511 laminated on the paper substrate 50 and the foamed sheet not laminated on the paper substrate 50. A tear-off line is formed on the foamed sheet 511a between 510 (i.e., at the periphery of the foamed sheet 511), and therefore, the hair-receiving unit 42 is wound up and unwound on the paper substrate 50. When the sheet 510 is blistered, the foamed sheet 511 which is not spliced on the paper substrate 50 can be easily peeled off, and the foamed sheet 511 which is laminated on the paper substrate 50 is not overlapped with The foamed sheet 510 on the paper substrate 50 is separated.

In one embodiment of the present invention, the die unit may be a rotary die cutter in addition to a planar die cutting machine. For example, the die unit is die-cut by means of roll die cutting.

In a specific embodiment of the present invention, please refer to the cross-sectional schematic diagrams of the die units 41' and 41" of the present invention shown in FIGS. 6A and 6B, the die units 41' and 41" having opposite first rollers 412, 412', a second roller 40', and a tool structure 410, which may be one of the tool structures 2A, 2B, 2C-1, 2C-2, 3, 3' as described in the previous 2A to 3B' drawings. Wherein, the cutter structure 410 is disposed on the first rollers 412 and 412', and the The die units 41' and 41" are formed by laminating a portion of the foamed sheet 511 onto the paper substrate 50 in a rolling manner. In still another embodiment shown in Fig. 6B, the roller 412 In addition to the cutter structure 410, there is a cutter 413, that is, the cutter unit and the cutter structure 410 are integrated to obtain a die unit 41", and after the die, a paper layer 501 and foaming are obtained. A laminated structure of the sheet 511 for producing an insulated container. Finally, as another embodiment shown in Fig. 6B, a collector 42' is further included, and the paper substrate 50 and the foamed sheet 510 remaining after cutting by the cutting unit are collected.

Please refer to Figures 7A and 7B for a cross-sectional view of the laminated structure for making an insulated container.

As shown in Figures 7A and 7B, a laminated structure 6 for making an insulated container of the present invention includes a paper layer 60, a polymer layer 600, and a foamed sheet 62.

In this embodiment, the surface of the paper layer 60 defines a central region 60c and a marginal region 60e surrounding the central region 60c, at least on the surface of the paper layer 60 formed in the central region 60c and adjacent to the marginal region 60e. The polymer layer 600 (in the present embodiment, the polymer layer 600 is formed on the entire surface of the two surfaces of the paper layer 60); and the foamed sheet 62 is floated on the center of the paper layer 60. In the region 60c, the foamed sheet 62 is partially fused with the polymer layer 600 at a portion of the central region 60c adjacent to the marginal region 60e to float the foamed sheet 62 to the paper layer 60. The area of the central portion 60c, and generally the area of the foamed sheet 62 is slightly the same as the area of the central portion 60c.

In the present embodiment, the marginal region 60e has opposite curling portions 601 and bottom edge portions 603 and opposite first and second overlapping portions 601a, 601b, and the first overlapping portions 601a and the second stack Each of the joint portions 601b connects both ends of the curl portion 601 and the bottom edge portion 603. The curled portion 601 is used for curling in a paper container process to form a cup edge. In addition, in another embodiment of the present invention, the curling portion 601 is adjacent to the second overlapping portion 601b with a notch (not shown), for example, the length of the second overlapping portion 601b at the notch is short. When the length of the first overlapping portion 601a is overlapped with the first overlapping portion 601a and the second overlapping portion 601b, the portion of the first overlapping portion 601a connecting the curling portion 601 is not The second lap joint overlaps 601b to avoid the difference in thickness caused by the conventional paper container at the splicing.

In this embodiment, a polymer layer 600 is formed on opposite surfaces of the paper layer 60. In a specific embodiment, the material for forming the foamed sheet comprises a material for forming the polymer layer. For example, when the material forming the polymer layer is polyethylene, the foamed sheet is formed. The material is a material containing polyethylene, such as foamed polyethylene, and when the material forming the polymer layer is polypropylene, the material forming the foamed sheet is a material containing polypropylene, such as expanded polypropylene. . In the foregoing embodiment, the polymer layer is a waterproof layer, and the waterproof layer may be polyethylene (PE).

In the embodiment, the material of the paper layer is made of paper, and the foamed sheet is made of Expandable Polystyrene (EPS), Expanded Polyethylene Foam (EPE) or foamed. Expanded Poly-Propylene (EPP), but not limited to this.

In the present embodiment, the foamed sheet 62 corresponds to the edge region 62e of the paper layer 60 adjacent to the marginal region 60e, and has a heat-stacked edge 62a (see FIG. 7B). The polymer layer 600 at the edge 62a is adhered to the foamed sheet 62.

In addition, in the embodiment, the edge 62a of the foamed sheet 62 is flat, and the edge 62a corresponding to the tear line (not shown) has a foam breaking structure, that is, an open-cell foaming structure. .

Referring to Figures 8A to 8D, in an embodiment of the laminated structure 6' for making an insulated container, the curled portion 601' is joined to the second layered portion 601b on the paper layer 60. Or a polymer layer 600 is formed with a leveling member 62' that can be attached to a foamed material, or other thermoplastic or thermoset polymer. In this embodiment, the leveling member 62' is attached to or overlapped between the curling portion 601' of the marginal region 60e and the second overlapping portion 601b when the die unit 41 is overlapped with the foamed sheet. Another foamed sheet is attached as the leveling member 62'. Of course, the leveling member may be formed separately, so the leveling member may be in the form of a sheet or a block, or may be the same as or different from the material forming the foamed sheet.

Referring to Figures 9A and 9B, in an embodiment of the laminated structure 7 for making an insulated container, a portion of the foamed sheet in the central portion 60c is partially compatible with the polymer layer. The foamed sheet 62 has a recess 72, which includes, but is not limited to, a geometric figure, an arc (the recess is a concave rib) or a specific shape to enhance the laminated structure 7 for making the insulated container. The easy-to-crawlability of the insulated container.

In this embodiment, the recess 72 is spliced to the die unit 41. When the sheets are blister, they are simultaneously or simultaneously formed in the central region 60c. When the other nip (not shown) is included in the cutter structure, the recess 72 can be formed synchronously when the foam material is stacked. Of course, the recess 72 can also be formed separately. It can be seen from the foregoing embodiments that the present invention utilizes a cutter structure having a nip portion and a blade portion to simultaneously apply heat and pressure to the foam sheet to cut the polymer layer on the paper while cutting the foam sheet. The (for example, the waterproof layer) is partially melted while the foamed sheet laminated to the paper is bonded.

Moreover, the laminated structure for making the insulated container of the present invention floats the foamed sheet through the central portion of the paper layer, and the marginal region of the laminated structure for making the insulated container has only the paper layer itself or additional It has the thickness of the polymer layer and thus is not affected by the thickness of the foamed sheet, and can be processed using a general paper container processing machine.

Furthermore, since the foamed sheet is fixed to the paper layer in a floating manner, when there is a recycling demand, the foamed sheet can be easily peeled off to facilitate the recovery of the paper layer and the foamed sheet. Improve the convenience of resource recycling.

In addition, the present invention can be attached to the leveling member by the curl portion adjacent to the second stacking portion, so that the heat can be adjusted during the subsequent processing using the paper container processing machine for the lamination and crimping. The flat member is slightly melted or softened, and overflows to the portion of the curl corresponding to the first and second overlapping portions to compensate for the thickness of the paper container itself due to the thickness of the paper container itself. The difference is the segment. In addition to the foregoing structure, the present invention can also improve the problem of the step difference caused by the thickness of the conventional paper container at the overlapping portion by the design of the notch adjacent to the second overlapping portion. The tightness between the liquid and the sealant film.

In addition, the creation is also made by forming a central portion, such as a geometric figure, an arc, or a recess having a specific shape, to enhance the ease of holding the insulated container made of the laminated structure of the present invention.

The above embodiments are merely illustrative of the principles of the present invention and their effects, and are not intended to limit the present invention. Any person skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation should be as listed in the scope of the patent application described later.

Claims (8)

A laminated structure for making an insulated container, comprising: a paper layer defining a central region and a marginal region on a periphery of the paper layer and surrounding the central region; a polymer layer formed at least in the central region And on the surface of the paper layer adjacent to the marginal region; and the foamed sheet is floated on the central region of the paper layer, wherein the foamed sheet is adjacent to the marginal region in the central region and the polymerization The layer of the layer is bonded. The laminate structure for making an insulated container according to claim 1, wherein the marginal region has opposite curling portions and bottom edge portions and the opposite first and second overlapping portions, and Each of the first overlap portion and the second overlap portion connects both ends of the curl portion and the bottom edge portion. The laminated structure for manufacturing an insulated container according to claim 2, further comprising a leveling member formed at a joint of the curled portion and the second overlapping portion. The laminated structure for producing an insulated container according to the third aspect of the invention, wherein the material for forming the leveling member is a foamed material. The laminated structure for manufacturing an insulated container according to the second aspect of the invention, wherein the curling portion and the second overlapping portion have a notch, and the first overlapping portion is overlapped. And the second overlapping portion, the portion of the first overlapping portion connecting the curling portion is not overlapped with the second overlapping portion. A stack for making an insulated container as described in claim 1 a layer structure in which edges of the foamed sheet are flat. The laminated structure for producing an insulated container according to the above-mentioned claim 1, wherein the edge of the foamed sheet has a foam breaking structure. The laminated structure for producing an insulated container according to the first aspect of the invention, wherein the material for forming the foamed sheet comprises a material forming the polymer layer.