TW201922584A - Heat insulation carton - Google Patents

Abstract

A heat insulation carton is formed by a heat insulation substrate including a first composite layer unit and a second composite layer unit. The first composite layer unit includes a foam layer having a first face and a second face, a first cover layer attached to the first face and a second cover attached to the second face. The second composite layer unit includes a third cover and a partition layer, wherein the partition layer is formed with multiple connecting ribs respectively connected to the second cover and the third layer such that multiple heat insulation chambers are defined between the second cover and the third cover, wherein the multiple heat insulation chambers are separated from one another.

Description

Insulated carton

The present invention relates to a carton; in particular to an innovative structural type revealer of an insulated carton.

At present, in order to cope with the busy living habits of modern people, when we purchase products that need to be insulated and kept cold, for the convenience of carrying, shopping bags with insulation layer have been commonly used, wherein the insulation layer 10 is usually aluminum foil 11 from the inside to the outside. The foam 12 and the cloth 13 are formed. The foam 12 has a porous structure and has a heat insulating effect, and the aluminum foil 11 can reduce the transfer of radiant heat, thereby achieving the effect of maintaining the temperature inside the shopping bag.

However, it is found that the conventional shopping bag has the following problems and drawbacks in practical application experience: since the foaming reaction speed of the foam 12 is fast, it is difficult to control the foaming uniformity, so that the foam 12 Forming usually has a rugged surface. When the aluminum foil 11 and the cloth 13 are respectively bonded to the inner and outer surfaces of the foam 12, the surface of the aluminum foil 11 and the cloth 13 may be deformed by the uneven structure of the foam 12, and there may be a wave. The uneven surface structure, as shown in Figure 1, seriously affects the appearance quality of the product. In addition, in addition to the mechanical properties of the foam 12, the application range is limited, and the foam 12 still has a problem of temperature transfer, for example, when a product having a temperature lower than the external environment is placed in a conventional shopping bag. It is still inevitable that the condensation of water and gas occurs due to the temperature difference between the inside of the shopping bag and the external environment, which causes the extension of the conventional shopping bag.

Furthermore, traditional packaging boxes for transporting low-temperature or high-temperature goods are usually made of styrofoam. However, in addition to being difficult to decompose in nature, the styrofoam material is difficult to recycle and reuse, which obviously has a negative impact on the ecological environment. Under the current trend of environmental awareness, it is bound to set off a green and environmental revolution. In addition, the styrofoam box must occupy a certain volume and cannot be folded and stored, and has a considerable space.

Therefore, in view of the problems existing in the above-mentioned conventional shopping bag technology, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goal and direction of breakthrough; in view of this, the inventor Based on the experience of manufacturing, design and design of related products for many years, this design has been carefully designed and carefully evaluated to achieve the practical invention.

The main object of the present invention is to provide an insulated carton, and the technical problem to be solved is to think about how to develop a new type of insulated carton which is more ideal and practical.

The technical feature of the present invention is mainly to the heat insulating paper box, which is formed by folding a heat insulating substrate, the heat insulating substrate comprising: a first composite layer unit comprising: a foam layer having a plurality of a pore structure which is spaced apart from each other and which is not connected to each other. The pores are provided for containing air and have a heat insulating effect. The foam layer has a first surface and a second surface; and a first sealing layer is made of an airtight aluminum foil material. The first sealing layer has a rough surface and a smooth surface, the rough surface of the first sealing layer is bonded to the first surface of the foam layer, and the smooth surface of the first sealing layer faces the partition An inner space of the hot cardboard box; and a second sealing layer formed by a sheet of paper material, the inner surface of the second sealing layer being bonded to the second surface of the foam layer by an adhesive layer; a second composite layer unit in which a composite layer unit is stacked, comprising: a third sealing layer and a spacer layer, wherein: the third sealing layer is connected to the second sealing layer by the spacer layer, and The third closed layer is composed of one The outer surface of the third sealing layer faces an external environment; the spacing layer has a plurality of connecting ribs connected to the second and third sealing layers, and corresponds to the second and third sealing A plurality of heat insulating air chambers are arranged between the layers and are not connected to each other, and each of the heat insulating air chambers has an effect of accommodating air and providing heat insulation.

The main effect and advantage of the present invention is to reduce the heat transfer between the external environment and the interior of the insulated carton by the first and second composite layer units, thereby maintaining the temperature inside the insulated carton and preventing the third closed layer or The surface of the first sealing layer generates moisture condensation, which achieves better heat preservation effect.

The secondary effect and advantage of the present invention is that a flat layer is respectively bonded to the inner and outer surfaces of the foam layer so that the first sealing layer does not have the problem of dent deformation during the bonding process.

Another effect and advantage of the present invention is that the insulating substrate is composed of a reusable and recyclable material, which is advantageous for environmental protection.

Another effect and advantage of the present invention is that the insulated carton is folded and formed from the insulating substrate, and can be disassembled after each use to return to a substantially flat configuration.

The additional effects and advantages of the present invention mean that the outer surface of the third sealing layer has the effect of facilitating printing processing.

Referring to Figures 2 and 3, there is shown a first embodiment of the insulated carton of the present invention, but the embodiments are for illustrative purposes only and are not limited by the structure in the patent application; The heat-insulating substrate A comprises a first composite layer unit 20 and a second composite layer unit 30 overlapping the first composite layer unit 20 . In other embodiments, the insulated carton may be, but is not limited to, a container that includes other geometric configurations such as a cone, a cup, and the like.

The first composite layer unit 20 includes a foam layer 21, a first sealing layer 22 and a second sealing layer 23, wherein the foam layer 21 has a plurality of mutually spaced and non-connected pore structures. The pores are provided with a heat insulating effect. The foam layer 21 has a first surface 211 and a second surface 212. The material of the foam layer 21 is selected from a polyurethane foam (PU). , a group of Ethylene Vinyl Acetate (EVA) and Ethylene-Propylene-Diene Monomer (EPDM). The first sealing layer 22 is made of a gas-tight aluminum foil material. The first sealing layer 22 has a rough surface 221 and a smooth surface 222. The rough surface 221 of the first sealing layer 22 is bonded to the foam layer 21. The first surface 211 and the smooth surface 222 of the first sealing layer 22 are oriented toward an inner space of the insulated carton. The second sealing layer 23 is composed of a sheet of paper material, and the inner surface of the second sealing layer 23 is bonded to the second surface 212 of the foam layer 21 by an adhesive layer 24. The material of the adhesive layer is selected from the group consisting of Melamine Formaldehyde, Polyaziridine, Dispersible Polyisocyanate, Carbodiimide, and Epoxy. A group of Epoxy Silane and Polyurethane (PU).

The second composite layer unit 30 includes a third sealing layer 31 and a spacer layer 32, wherein the third sealing layer 31 is coupled to the second sealing layer 23 by the spacer layer 32, and the third sealing layer The layer 32 is composed of a sheet of paper having an outer surface facing an external environment; the spacer 32 has a plurality of connecting ribs 321 coupled to the second and third sealing layers 23, 32, and corresponding to the second A plurality of heat insulating plenums 322 are arranged between the three closed layers 23 and 31 and are spaced apart from each other, and each of the heat insulating plenums 322 has an effect of accommodating air and providing heat insulation. Further, the plurality of connecting ribs 321 are composed of a sheet of wavy paper.

As shown in FIG. 3, in this example, a longitudinal section of the insulating substrate A defines that the connecting ribs 321 are connected to each other to form a spacer layer 32 having a wavy structure, and the two adjacent connections are connected. A boundary portion 323 is formed at a boundary of the rib 321 , and the bending portion 323 is connected to one of the second and third sealing layers 23 , 31 , and the extension line of the connecting rib 321 is connected to the second and third One of the planes defined by one of the sealing layers 23, 31 forms an angle θ which is an acute angle.

As shown in FIG. 4, it is a second embodiment of the present invention, which differs from the first embodiment in that the first composite layer unit 20 includes: a foam layer 21, a two flat layer 25, and two first sealing layers. 22 and a second sealing layer 23, wherein each of the flattening layers 25 is made of a kraft paper material having a flat surface, and the two flat layers 25 are bonded to the first layer of the foam layer 21 by the adhesive layer 24, respectively. On the two surfaces 211, 212. Each of the first sealing layers 22 is made of a gas-tight aluminum foil material. The two first sealing layers 22 have a rough surface 221 and a smooth surface 222. The rough surfaces 221 of the two first sealing layers 22 are respectively combined. The second sealing layer 23 is formed by a sheet of paper material, and the inner surface of the second sealing layer 23 is bonded to the smooth surface 222 of one of the two first sealing layers 22.

As shown in FIG. 5, it is a third embodiment of the present invention, and the main difference from any of the first embodiment or the second embodiment is that the insulating substrate A (not shown) A cross-section defines that each of the connecting ribs 321 is formed around a plurality of honeycomb cores 324, and each of the honeycomb cores 324 is connected in parallel to each other to construct a spacer layer 32 having a grid structure. The honeycomb core 324 has a a first opening 325 facing the third sealing layer 31 and a second opening 326 facing the second sealing layer 23. The first opening 325 end edge of the honeycomb core 324 is connected to the third sealing layer 31. The surface of the second opening 326 of the honeycomb core 324 is connected to the outer surface of the second sealing layer 23, and the honeycomb core 324, the second and third sealing layers 23, 31 surround the insulating gas chamber 322.

As shown in FIG. 6, the fourth embodiment of the present invention is different from the first embodiment or the second embodiment in that the insulating substrate A (not shown) Each of the connecting ribs 321 defines a plurality of honeycomb cores 324 formed around each other, and the honeycomb cores 324 are connected in parallel to each other to construct a spacer layer 32 having a grid structure, and each of the honeycomb cores 324 One of the inner spaces forms the heat insulating plenum 322, and one of the two mutually parallel connecting ribs 321 is adjacent to the connecting rib 321 of the second closing layer 23 to connect the second sealing layer 23, and the two parallel connections The rib 321 is connected to the third sealing layer 31 by another connecting rib 321 adjacent to the third sealing layer 31.

Advantages of the Invention: The "insulated carton" disclosed in the present invention mainly provides the following effects in comparison with the conventional structure proposed in the [Prior Art] by the innovative unique structural forms and technical features; Advantages: 1. The first and second composite layer units are used to reduce the heat transfer between the external environment and the interior of the insulated carton, thereby maintaining the temperature inside the insulated carton and preventing the third closed layer or the first closed layer. The surface generates moisture condensation, which achieves better heat preservation. 2. A flat layer is respectively bonded to the inner and outer surfaces of the foam layer so that the first sealing layer does not have the problem of dent deformation during the bonding process. 3. It is more environmentally friendly because the insulation substrate is made of reusable and recyclable materials. 4. The insulated carton is folded and formed by the insulating substrate, and can be disassembled after each use to return to a substantially flat configuration. 5. The outer surface of the third sealing layer has the effect of facilitating printing processing.

[知知]

10‧‧‧Insulation

11‧‧‧Aluminum foil

12‧‧‧Foam

13‧‧‧ cloth

[this invention]

A‧‧‧Insulation substrate

20‧‧‧First composite layer unit

21‧‧‧Foam layer

211‧‧‧ first surface

212‧‧‧ second surface

22‧‧‧ a closed layer

221‧‧‧Rough surface

222‧‧‧Smooth face

23‧‧‧Second closed layer

24‧‧‧Adhesive layer

25‧‧‧ leveling layer

30‧‧‧Second composite layer unit

31‧‧‧ third closed layer

32‧‧‧ spacer

321‧‧‧ Connecting ribs

322‧‧‧Insulated air chamber

323‧‧‧Bend section

324‧‧‧ honeycomb core

325‧‧‧ first port

326‧‧‧second port

Θ‧‧‧ angle

Figure 1 is a cross-sectional view of a conventional shopping bag. Figure 2 is a perspective view of a first embodiment of the insulated carton of the present invention. Figure 3 is a partial cross-sectional view of Figure 2. Figure 4 is a partial cross-sectional view showing a second embodiment of the insulated carton of the present invention. Fig. 5 is a schematic view showing the relationship between the second sealing layer, the third sealing layer and the spacer layer in the third embodiment of the insulated carton of the present invention. Figure 6 is a schematic view showing the relationship between the second sealing layer, the third sealing layer and the spacer layer in the fourth embodiment of the insulated carton of the present invention.

Claims (10)

An insulated carton is formed by folding a heat insulating substrate, the insulating substrate comprising: a first composite layer unit comprising: a foam layer having a plurality of mutually spaced and non-connected pore structures, The pores are provided for containing air and have a heat insulating effect, the foam layer has a first surface and a second surface; a first sealing layer is made of a gas-tight aluminum foil material, the first sealing layer has a rough surface and a smooth surface, the rough surface of the first sealing layer is bonded to the first surface of the foam layer, and the smooth surface of the first sealing layer faces an inner space of the insulated carton; a second sealing layer comprising a sheet of paper material, the inner surface of the second sealing layer being bonded to the second surface of the foam layer by an adhesive layer; and a second overlapping with the first composite layer unit The composite layer unit comprises: a third sealing layer and a spacing layer, wherein: the third sealing layer is connected to the second sealing layer by the spacing layer, and the third sealing layer is made of a piece of paper Constructed with its outer surface facing An external environment; the spacer layer has a plurality of connecting ribs connected to the second and third sealing layers, and corresponding to the second and third sealing layers are formed with a plurality of mutually spaced and non-connected Insulating air chambers, each of which has a heat insulating effect for accommodating air. The insulated carton according to claim 1, wherein a longitudinal section of the insulating substrate defines that the connecting ribs are connected to each other to construct a spacer layer having a wavy structure, and the two adjacent connections are connected. Forming a bent section at a junction of the ribs, the bent sections connecting one of the second and third sealing layers, and the extending line of the connecting rib is defined by one of the second and third sealing layers One of the planes forms an angle which is an acute angle. The insulated carton according to claim 1, wherein a cross section of the insulating substrate defines that each of the connecting ribs is formed around a plurality of honeycomb cores, and the honeycomb cores are connected in parallel to each other. a spacer layer having a grid-like structure, the honeycomb core having a first opening facing the third sealing layer and a second opening facing the second sealing layer, the first opening end edge of the honeycomb core Attached to the inner surface of the third sealing layer, the second opening end edge of the honeycomb core is connected to the outer surface of the second sealing layer, and the honeycomb core, the second and third sealing layers surround the insulating gas chamber. The insulated carton according to claim 1, wherein a longitudinal section of the insulating substrate defines that each of the connecting ribs is formed around a plurality of honeycomb cores, and the honeycomb cores are connected in parallel to each other. a spacer layer having a grid-like structure, and an inner space of each of the honeycomb cores forms the heat insulating gas chamber, and one of the two parallel connecting ribs is adjacent to the connecting rib of the second sealing layer The second sealing layer, the connecting ribs of the two mutually parallel connecting ribs, the other connecting ribs adjacent to the third sealing layer are connected to the third sealing layer. The insulated carton of claim 1, wherein the plurality of connecting ribs are formed of a sheet of wavy paper. An insulated carton is formed by folding a heat insulating substrate, the insulating substrate comprising: a first composite layer unit comprising: a foam layer having a plurality of mutually spaced and non-connected pore structures, The pores are provided for containing air and have a heat insulating effect. The foam layer has a first surface and a second surface. The second flat layer is made of a kraft paper material having a flat surface, and the two flat layers are respectively An adhesive layer is bonded to the first and second surfaces of the foam layer; and two first sealing layers are made of a gas-tight aluminum foil material, and the two first sealing layers have a rough surface and a smooth surface. The rough surfaces of the two first sealing layers are respectively bonded to the other side of the two flat layers; and the second sealing layer is composed of a sheet of paper material, and the inner surface of the second sealing layer is bonded to the two first sealing layers a smooth surface of the first composite layer unit, and a second composite layer unit, wherein: the third sealing layer and the spacer layer, wherein: the third sealing layer is The spacer layer and the second The sealing layer is connected, and the third sealing layer is composed of a piece of paper having an outer surface facing an external environment; the spacing layer has a plurality of connecting ribs connected to the second and third sealing layers And corresponding to the second and third sealing layers, a plurality of heat insulating air chambers which are arranged at intervals and are not connected are formed, and each of the heat insulating air chambers has the effect of accommodating air and providing heat insulation. The insulated carton according to claim 6, wherein a longitudinal section of the insulating substrate defines that the connecting ribs are connected to each other to construct a spacer layer having a wavy structure, and the two adjacent connections are connected. Forming a bent section at a junction of the ribs, the bent sections connecting one of the second and third sealing layers, and the extending line of the connecting rib is defined by one of the second and third sealing layers One of the planes forms an angle which is an acute angle. The insulated carton according to claim 6, wherein a cross section of the insulating substrate defines that each of the connecting ribs is formed around a plurality of honeycomb cores, and the honeycomb cores are connected in parallel to each other. a spacer layer having a grid-like structure, the honeycomb core having a first opening facing the third sealing layer and a second opening facing the second sealing layer, the first opening end edge of the honeycomb core Attached to the inner surface of the third sealing layer, the second opening end edge of the honeycomb core is connected to the outer surface of the second sealing layer, and the honeycomb core, the second and third sealing layers surround the insulating gas chamber. The insulated carton according to claim 6, wherein a longitudinal section of the insulating substrate defines that each of the connecting ribs is formed around a plurality of honeycomb cores, and the honeycomb cores are connected in parallel to each other. a spacer layer having a grid-like structure, and an inner space of each of the honeycomb cores forms the heat insulating gas chamber, and one of the two parallel connecting ribs is adjacent to the connecting rib of the second sealing layer The second sealing layer, the connecting ribs of the two mutually parallel connecting ribs, the other connecting ribs adjacent to the third sealing layer are connected to the third sealing layer. The insulated carton of claim 6, wherein the plurality of connecting ribs are formed of a sheet of wavy paper.