TWM537871U - Thermal insulating container and stacked layer structure used in manufacturing the same - Google Patents

Description

Insulation container and laminated structure for making insulated container

The present invention relates to an insulated container, and more particularly to a laminated structure that can be applied to a paper container processing process and the insulated container.

With the development of scientific and technological civilization, modern people's requirements for the quality of life have increased. The requirements for food are more convenient than the delicious ones, which leads to the convenience of fast food. Usually, in order to achieve the convenience of use, these fast foods are often used in disposable disposable containers. However, the container used for the instant foods has a poor heat preservation effect. Under normal temperature conditions, the food will lose its original cold or warm temperature sense in a short period of time, which may deteriorate the taste and even deteriorate.

In the early days, in order to maintain the original flavor of these portable 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 environmentally friendly when recycled.

Therefore, foaming materials are often formed on the outer side of the paper container body to make a paper heat preservation 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 an outer surface of the paper container body 10; and a foamed material 12 By the stick The layer 11 is applied to the paper container body 10 so that the conventional paper heat insulating container 1 has a heat insulating effect.

The paper thermal insulation containers currently used generally have two manufacturing methods, one of which is to adhere the thermal insulation material to the outside of the paper container to achieve the effect of heat preservation, or to coat the foaming material to be foamed on the outer side of the paper container, and then foaming, An insulated container having an insulating material on the outside of the paper container is obtained.

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 laminate structure for making an insulated container, comprising: a paper layer having a surface defining a central region and a marginal region on a periphery of the paper layer and surrounding the central region; at least one adhesive member, Formed on the surface of the paper layer in the central region and adjacent to the marginal region; and the foamed sheet is floated on the central region of the paper layer through the at least one adhesive member.

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. In the foregoing embodiment, the at least one adhesive member is formed at a position corresponding to the bubble breaking structure.

The present invention provides a paper insulated container comprising: an annular side wall formed by laminating the first overlapping portion and the second overlapping portion in a laminated structure for making an insulated container according to the present invention; and a bottom portion, Attached to the inner edge of the annular side wall.

In a specific embodiment of the paper insulated container of the present invention, the bottom portion is joined to the bottom edge portion of the laminated structure for making the insulated container.

In a specific embodiment of the paper insulated container of the present invention, the paper thermal insulation container further comprises a crimping section formed by winding the crimping portion of the laminated structure for making the thermal insulating container to the outside of the paper thermal insulating container.

In a specific embodiment of the paper insulated container of the present invention, the laminated structure for manufacturing the heat insulating container has a foaming material formed at a joint between the curling portion and the second overlapping portion to enable the foaming The material fills the step of the curl corresponding to the joint position of the first overlap portion and the second overlap portion.

In a specific embodiment of the paper insulated container of the present invention, the curl The portion adjacent to the second overlapping portion has a notch so that a portion of the first overlapping portion connecting the curled portion does not overlap with the second overlapping portion.

Since the laminated structure for making the insulated container of the present invention floats the foamed sheet only in the central portion, the marginal region has only the thickness of the paper layer itself. 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 micro-melted (having fluidity) to overflow to the overlap of the curl portion corresponding to the first and second overlap portions to compensate for the conventional paper container being spliced The difference caused by the thickness.

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

100,200‧‧‧Waterproof layer

11‧‧‧Adhesive layer

12‧‧‧Foam material

2,2',2"‧‧‧Laminated structure for making insulated containers

20‧‧‧paper layer

20c‧‧‧Central area

20e‧‧‧ marginal area

201,201’,201”‧‧‧ Curl

201a‧‧‧First overlap

201b‧‧‧Second lap joint

2010‧‧‧ gap

203‧‧‧ bottom edge

21, 21' ‧ ‧ at least one adhesive

22‧‧‧Foam sheet

22’‧‧‧ Leveling

22a‧‧‧ trimming

3‧‧‧paper insulation container

30‧‧‧ annular side wall

31‧‧‧ bottom

300‧‧‧ openings

301‧‧‧Curled section

F‧‧‧ film

Figure 1 is a cross-sectional view showing a conventional paper insulated container; 2A to 2B are views showing an embodiment of the laminated structure for making an insulated container of the present invention, wherein FIG. 2B is a cross-sectional view taken along line 2B-2B of FIG. 2A; 3A to 3D are views showing another embodiment of the laminated structure for making an insulated container of the present invention, wherein FIG. 3B is a cross-sectional view taken along line 3B-3B of FIG. 3A. 3C is a partial schematic view showing a paper thermal insulation container prepared by using the laminated structure for manufacturing an insulated container of the present embodiment; and FIG. 3D is a laminated structure for manufacturing the thermal insulation container according to the embodiment. A partial schematic view of a paper insulated container; FIG. 4A to FIG. 4C are schematic views showing still another embodiment of the laminated structure for making an insulated container of the present invention, wherein FIG. 4B shows a view along FIG. 4A. Sectional cross-sectional view of the section line 4B-4B, and Fig. 4C is a partial schematic view showing the paper thermal insulation container prepared by the laminated structure for manufacturing the heat insulating container of the present embodiment; and the 5A to 5B system display A schematic diagram of a paper insulated container of the present invention, In the middle, Figure 5B shows a schematic cross-sectional view of the paper insulated container of the present invention.

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 should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used in conjunction with the contents disclosed in the specification to familiarize themselves with the art. The understanding and reading of the person is not intended to limit the qualifications that can be implemented in this creation. Any modification of the structure, change of the proportional relationship or adjustment of the size will not affect the effect and the purpose of the creation. , should still fall within the scope of the technical content disclosed in this creation. 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 and 2B for a cross-sectional view of the laminated structure for making an insulated container.

As shown in FIG. 2A, a laminated structure 2 for fabricating an insulated container of the present invention includes a paper layer 20 having a surface defined with a central region 20c and a marginal region 20e surrounding the central region. At least one adhesive member 21 on the surface of the paper layer 20 in the central region 20c and adjacent to the marginal region 20e; and the foamed sheet 22 is affixed to the central region 20c of the paper layer 20 through the at least one adhesive member 21. Above, and usually the area of the foamed sheet 22 is the same as the area of the central portion 20c.

In the present embodiment, the foamed sheet 22 is floated and overlaid on the central portion 20c of the paper layer 20.

In the embodiment, the marginal region 20e has opposite curling portions 201 and bottom edge portions 203 and opposite first and second overlapping portions 201a, 201b, and the first overlapping portion 201a and the second stack Each of the joint portions 201b connects both ends of the curl portion 201 and the bottom edge portion 203.

In this embodiment, at least one adhesive member is not formed on the paper layer 20. On the opposite surface of 21, a waterproof layer 200 is formed, and the waterproof layer 200 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 22 corresponds to the central region 20c of the paper layer 20 near the marginal region 20e, and has a cut edge 22a obtained by thermal cutting (see FIG. 2B). The cut edge 22a is formed by physically breaking the foamed sheet so that the edge or the cut edge 22a of the foamed sheet 22 has a foam breaking structure, that is, an open-cell foaming structure. In the foregoing embodiments, the thermal cutting can be performed using a high frequency cutter or an ultrasonic cutter. The at least one adhesive member 21 is formed at a position corresponding to the foam breaking structure, thereby enhancing the adhesion strength of the at least one adhesive member 21 to the foamed sheet 22.

Referring to FIGS. 3A to 3D, in an embodiment of the laminated structure 2' for manufacturing an insulated container, the curl portion 201' is connected to the second overlapping portion 201b to form a leveling portion. Piece 22', which may be attached to a foamed material, or other thermoplastic or thermoset polymer. In the present embodiment, the leveling member 22' is adhered to the curling portion 201' of the marginal region 20e and the second overlapping portion 201b by means of another at least one adhesive member 21'. In the present embodiment, the foamed material is in the form of a sheet or a block, and may be the same as or different from the material forming the foamed sheet.

In the embodiment, by adhering the leveling member 22', the first overlapping portion 201a is overlapped with the subsequent use of the paper container processing machine. The second splicing portion 201b, when the curling portion 201' is processed, causes the leveling member 22' to have fluidity and overflows to overlap the first splicing portion 201a and the second splicing portion 201b. The curled portion 201' at the position where it is connected is as shown in Fig. 3C. Therefore, when the film F is sealed, it is possible to compensate for the difference in thickness of the conventional paper container at the overlap, as shown in Fig. 3D.

Referring to Figures 4A to 4C, in another embodiment of the laminated structure 2" for making an insulated container, the curled portion 201" is adjacent to the second overlapping portion 201b. Gap 2010. In the present creation, it is meant that the first overlapping portion 201a and the curling portion 201" partially overlap at the joint portion, and the second overlapping portion 201b and the curled portion 201" partially overlap at the joint portion, The notch 2010 is formed such that the second overlapping portion 201b is shorter than the first overlapping portion 201a, and when the first overlapping portion 201a and the second overlapping portion 201b are overlapped, the crimping portion is connected A portion of the first overlapping portion 201a is not overlapped with the second overlapping portion 201b.

In the present embodiment, when the curl portion 201" is curled through the notch 2010, the step of curling is not caused by the thickness of the second overlap portion 201b. In the present embodiment, it is obtained by crimping. The step difference between the first lap joint 201a and the notch 2010 is reduced to obtain a flatter surface as shown in Fig. 4C.

Referring to Figures 5A and 5B, the paper insulated container 3 of the present invention comprises: an annular side wall, which is a laminated structure 2, 2', 2" for making an insulated container as in the present invention (in Figure 5A The laminated structure 2 of FIG. 2A is exemplified by superimposing the first overlapping portion 201a and the second overlapping portion 201b; and the bottom The portion 31 is joined to the inner edge of the annular side wall 30.

Further, according to the paper insulated container 3 of the present invention, the bottom portion 31 is joined to the bottom edge portion of the laminated structure for producing the heat insulating container.

Since the foamed sheet 22 is attached to the paper layer 20 in a floating manner, as shown in FIG. 5B, the foamed sheet can be easily peeled off when the paper heat insulating container 3 of the present invention needs to be recycled. 22, in order to facilitate the recovery of the paper layer 20 and the foamed sheet 22, increasing the convenience of resource recovery.

In the foregoing embodiment, the paper thermal insulation container further comprises a crimping section 301 formed by winding the curled portion of the laminated structure for manufacturing the thermal insulation container to the outside of the paper thermal insulation container.

In a specific embodiment of the paper insulated container of the present invention, the laminated structure for manufacturing the heat insulating container has a foaming material formed at a joint between the curling portion and the second overlapping portion to enable the foaming The material fills the step of the curl corresponding to the joint position of the first overlap portion and the second overlap portion.

In a specific embodiment of the paper insulated container of the present invention, the curling portion has a notch adjacent to the second overlapping portion, such that a portion of the first overlapping portion connecting the curling portion does not The second overlap is superposed.

In a specific embodiment of the paper insulated container of the present invention, the edge of the foamed sheet has a foam breaking structure.

In a specific embodiment of the paper insulated container of the present invention, the at least one adhesive member is formed at a position corresponding to the bubble breaking structure.

The opening 300 has a curling section 301 formed by outwardly extending, and the curling section 301 has a foaming material corresponding to the joint position of the first overlapping portion 201a and the second overlapping portion 201b (refer to FIG. 3C). . In addition, in another In one embodiment, the opening 300 has a curling section 301 formed to extend outwardly, and the curling section 301 has no step corresponding to the joint position of the first overlapping portion 201a and the second overlapping portion 201b.

It can be seen from the foregoing embodiments that the laminated structure for making an 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. The thickness is thus 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 micro-melted and overflows to the portion of the curl corresponding to the first and second overlapping portions to compensate for the difference in the thickness of the paper container itself at the overlap of the conventional paper container. 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.

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 follows. Listed.

2‧‧‧Laminated structure for making insulated containers

20‧‧‧paper layer

20c‧‧‧Central area

20e‧‧‧ marginal area

201‧‧‧ Curling Department

201a‧‧‧First overlap

201b‧‧‧Second lap joint

203‧‧‧ bottom edge

21‧‧‧At least one adhesive piece

22‧‧‧Foam sheet

Claims (14)

A laminated structure for making an insulated container, comprising: a paper layer having a central region defined and a marginal region on a periphery of the paper layer and surrounding the central region; at least one adhesive member formed 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 portion of the paper layer through the at least one adhesive member. 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. 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 manufacturing an insulated container according to claim 6, wherein the at least one adhesive member is formed at a position corresponding to the foam breaking structure. A paper thermal insulation container comprising: an annular side wall, wherein the first overlapping portion and the second overlapping portion are laminated by a laminated structure for making an insulated container according to claim 2; The bottom portion is joined to the inner edge of the annular side wall. The paper thermal insulation container according to claim 8, wherein the bottom portion is joined to the bottom edge portion of the laminated structure for making the heat insulating container. The paper thermal insulation container according to claim 9 further comprising a crimping section formed by winding the crimping portion of the laminated structure for manufacturing the thermal insulation container to the outside of the paper thermal insulation container. The paper thermal insulation container according to claim 10, wherein the laminated structure for manufacturing the thermal insulation container has a foaming material formed at a joint between the curling portion and the second overlapping portion, so as to The foamed material fills a step difference of the curled portion corresponding to the joint position of the first overlap portion and the second overlap portion. The paper thermal insulation container according to claim 10, wherein the curling portion has a notch adjacent to the second overlapping portion, so that a portion of the first overlapping portion connecting the curling portion is not Superposed on the second overlapping portion. The paper thermal insulation container of claim 8, wherein the The edges of the foamed sheet have a foam breaking structure. The paper thermal insulation container according to claim 13, wherein the at least one adhesive member is formed at a position corresponding to the foam breaking structure.