Method for Fabricating A Heat Isolative Paper Container

Abstract

A method for fabricating a heat isolative paper container, which provides a paper board having a plurality of seams at a circumference thereof, and then a heat isolative material containing the hollow body is coated locally on at least a surface of the paper board and exempted from the seams. The container is then folded up as a container, and the container is heated, so that a heat isolative layer is provided on the surface of the container and has a heat isolative coefficient ranging from 0.003 to 0.05. The heat isolative material is made of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy. In this manner, the heat isolative material containing the hollow body may achieve the efficacies of a reduced volume, a reduced transportation cost, and an improved heat isolative effect, by using an isolative layer containing a hollow body.

Description

FIELD OF THE INVENTION

A method for fabricating a heat isolative paper container, which provides a paper board having a plurality of seams at a circumference thereof, and then a heat isolative material containing the hollow body is coated locally on at least a surface of the paper board and exempted from the seams. The container is then folded up as a container, and the container is heated, so that a heat isolative layer is provided on the surface of the container and has a heat isolative coefficient ranging from 0.003 to 0.05. The heat isolative material is made of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy. In this manner, the heat isolative material containing the hollow body may achieve the efficacies of a reduced volume, a reduced transportation cost, and an improved heat isolative effect, by using an isolative layer containing a hollow body.

DESCRIPTION OF THE RELATED ART

For the currently available paper made containers, the simple ones are generally not subject to any surface process, and only some single layered paper material is bonded and connected as the shape of a paper cup, a paper bowl or a paper tray. Although such paper containers involve a simple fabrication and a relatively lower cost, no heat isolative effect may be featured out and thus some casual scald events might be caused owing to the single layered thin paper material used.

Consequently, several types of isolative containers have been commercially proposed to contain some hot liquids. A heat isolative material made heat isolative container is one example among them. In fabricating a conventional heat isolative container, PP or PE material is coated on the surface of the container as a heat isolative material, and then the container is baked out together with the heat isolative material, so that the PP or PE material forms the heat isolative layer on the container's surface. However, the PP or PE material is no more than a plastic material and thus the PP or PE material may exhibit a poor heat isolative effect when it is heated.

Furthermore, when the baking temperature is increased into 120° C., the PE material may be apt to peel off while the PP material may be damaged. In this case, the PP or PE material typically has the demerits of the reduced thickness and the poorer heat isolative effect after the heat isolative material PP or PE is formed as the heat isolative layer. Furthermore, the container is filled with air voids or irregular concave-convex at its outer rim after the baking process, and even the pattern and its color becomes vague or difficult to be printed out. Another heat isolative paper container is structured that its body is totally surrounded by a sleeve of a corrugated paper at its outer side. However, the fabricating process involves an additional step for forming the corrugated paper sleeve and sticking the sleeve to an outer surface at a side wall of the body. Therefore, many other demerits exist. At first, characters, patterns or other symbols are printed on the corrugated surface, but thus obtained deformed characters and patterns are unpleasant to visual feeling to users. Next, the sleeve is stuck onto the side wall of the body by only contacting protruding ribs and the side wall. However, the fragile side wall might easily separate its contact with the rib. However, the protruding ribs on the sleeve are required to be fabricated by manufacturing protruding ringed rims in formation. This involves a complex structure and a high cost. Furthermore, the container having the corrugated sleeve is not appropriate to be folded up and thus requires a considerably large space, resulting in an increased package and transportation cost.

In addition, if the container is coerced to be folded up for a reduced spacious volume, the squeezed sleeve may cause a heat isolative space formed by the protruding ribs to be compressed, further resulting an adversely affected heat isolated effect of the container.

In view of the above, the currently available container has demerits such as a poor heat isolative effect, a low printability, a large volume, and a high transportation. Therefore, the conventional container may not meet the requirements for the actual use to the user.

SUMMARY OF THE INVENTION

The present invention has an object to provide a circumstances control device, where a mode selection mechanism may activate appliance devices by using various modes with cooperation with a switch unit and an input unit, whereby some desired circumstances may be controlled according to different conditions without requiring complicated switch devices, achieving the efficacy of easy operation and use.

To achieve the above object, the circumstances control device according to the present invention comprises a plurality of switch units; an input unit, connected to each of the plurality of switch units; a mode selection mechanism, connected to the input unit; and a plurality of appliance devices, connected to the mode selection mechanism.

In an embodiment, each of the switch units is a trigger switch.

In an embodiment, each of the plurality of switch units is a button switch.

In an embodiment, some of the plurality of switch units is a trigger switch while the others are a button switch, respectively.

In an embodiment, the input unit is a digital port, and a power source input port is arranged between the input unit and each of the switch units.

In an embodiment, each of the plurality of power source input port is supplied with a voltage of 5V to 24V.

In an embodiment, the mode selection mechanism comprises a first mode unit, a second mode unit, a third mode unit, a fourth mode unit, a fifth mode unit, a sixth mode unit, and a seventh mode unit.

In an embodiment, each of appliance devices comprises a video/audio player device, a lightening device, an air-conditioner device, and a power-driven curtain. It is, therefore, an object of the present invention to overcome the issue encountered in the prior art and thus provide a method for fabricating a heat isolative container featuring a reduced volume, a reduced transportation cost, and an improved heat isolative effect, by using an isolative layer containing a hollow body.

According to an embodiment of the present invention, the method for fabricating a heat isolative paper container, comprising steps of (A1) providing a paper board, having a plurality of seams at a circumference thereof; and (B1) folding the paper board into a container after locally coating a heat isolative material on at least a surface of the paper board containing a hollow body therein, heating the container so that the heat isolative material containing the hollow body therein is adhered to at lest a surface of the container, so as to provide a heat isolative layer on the surface of the container, wherein the heat isolative material is selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

In an embodiment, the container includes a paper cup body, a paper tray body and a paper lunch box.

In an embodiment, the heat isolative layer is coated on an outer surface of the container.

In an embodiment, the heat isolative layer is coated on an inner surface of the container.

In an embodiment, the heat isolative layer is coated on the outer and inner surfaces of the container.

In an embodiment, the hollow body has a particle diameter ranging from 10 to 350 μm.

In an embodiment, the heat isolative layer of the heat isolative layer has a heat isolation coefficient ranging from 0.003 to 0.05.

In an embodiment, the hollow body includes a hollow glass bead, a hollow ceramic bead, and a hollow plastic body.

In an embodiment, the hollow body is in a vacuum or a non-vacuum state.

In an embodiment, the method further comprises a step of further coating a protective layer, the protective layer having a material selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

In an embodiment, the heat isolative material containing the hollow body therein is coated as the heat isolative layer on the surface of the container by an injection forming, a vacuum forming, a rotation forming, a printing and a coating manners.

According to anther embodiment, the present invention, the method for fabricating a heat isolative paper container, comprising steps of (A2) providing a paper board, having a plurality of seams at a circumference thereof, the paper board being a heat isolative material containing a hollow body therein, the hollow body being exempted from each of the plurality of seams; and (B2) folding the paper board into a container, and coating a protective layer onto at least a surface of the container.

In an embodiment, the heat isolative material is selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

In an embodiment, the protective layer is locally coated onto the surface of the container and is exempted from each of the plurality of seams.

In an embodiment, the container includes a paper cup body, a paper tray body and a paper lunch box.

In an embodiment, the hollow body has a particle diameter ranging from 10 to 350 μm.

In an embodiment, the heat isolative layer of the heat isolative layer has a heat isolation coefficient ranging from 0.003 to 0.05.

In an embodiment, the hollow body includes a hollow glass bead, a hollow ceramic bead, and a hollow plastic body.

In an embodiment, the hollow body is in a vacuum or a non-vacuum state.

In an embodiment, the protective layer is coated on an outer surface or an inner surface of the container.

BRIEF DESCRIPTIONS OF THE DRAWINGS

The present invention will be better understood from the following detailed descriptions of the preferred embodiments according to the present invention, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram illustrating a fabricating process according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a specific structure where an isolative layer is coated on a paper board according to the first embodiment of the present invention;

FIG. 3 is a schematic diagram of a specific cup body structure according to the first embodiment of the present invention;

FIG. 4 is a schematic diagram of an outlook according to the first embodiment of the present invention;

FIG. 5 is a schematic diagram of a cross-sectional view of the specific structure according to the first embodiment of the present invention;

FIG. 6 is a schematic diagram of a second specific structure where the heat isolative layer is coated on the paper board according to the first embodiment of the present invention;

FIG. 7 is a schematic diagram of a cross-sectional view of a second specific structure according to the first embodiment of the present invention;

FIG. 8 is a schematic diagram of a cross-sectional view of a third specific structure according to the first embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating a fabricating process according to a second embodiment of the present invention;

FIG. 10 is a schematic diagram of a specific structure where the heat isolative layer is coated on the paper board according to the second embodiment of the present invention;

FIG. 11 is a schematic diagram of a sectional view of the specific structure according to the second embodiment of the present invention; and

FIG. 12 is a schematic diagram of a sectional view of a second specific structure according to the second embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 1 through 5, a schematic diagram illustrating a fabricating process according to a first embodiment of the present invention, a schematic diagram of a specific structure where an isolative layer is coated on a paper board according to the first embodiment of the present invention, a schematic diagram of a specific cup body structure according to the first embodiment of the present invention, a schematic diagram of an outlook according to the first embodiment of the present invention, a schematic diagram of a cross-sectional view of the specific structure according to the first embodiment of the present invention, are shown therein, respectively.

As shown, the present invention is a method for fabricating a heat isolative container. In step S11, a paper board 11 is first provided and a plurality of seams 12, 13 are arranged at a circumference of the paper board 11. Next in step S12, a heat isolative material 21 containing a hollow body 22 inside is locally coated onto at least a surface of the paper board 12, 13. Then, the paper board 12, 13 are folded into a container 1. And, the container 1 is heated so that the heat isolative material 21 containing the hollow body 22 inside is stuck onto at least a surface of the container 1. As such, an isolative layer 2 is provided on the surface of the container 1, and the heat isolation coefficient is arranged from 0.003 to 0.05. The heat isolative material is selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy. The hollow body has a particle diameter ranging from 10 to 350 μm. The hollow body includes a hollow glass bead, a hollow ceramic bead, and a hollow plastic body. The hollow body is in a vacuum or a non-vacuum state. Based on the above described process, a novel method for fabricating isolative paper container is completed.

The heat isolative paper container is formed with the container 1 and the heat isolative layer 2. Further, a protective layer 3 may be coated on the heat isolative layer 2. The protective layer 3 is made of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), or epoxy.

The container 1 includes a paper cup body, a paper tray body and a paper lunch box. Now, the embodiment is illustrated by a paper-made cup body.

When the present invention is folded up for formation, the seams 12 at a side end of the paper board 1 are combined with an inner rim at the other side end to form a cup body 10. And, the seams 13 are located at an upper end of the cup body 10. After the paper board 11 is combined to form the cup body 10, the seams 13 at the upper end of the cup body 10 is curled down to form a curled side, and then the curled side is pressed and folded into a flat cup rim 13a. Then, the cup body 10 is combined with a cup bottom 14 at its inner rim, in such fashion that the container 1 is formed. In the fabrication, the heat isolative material 21 containing the hollow body 22 inside is locally coated on at least a surface of the container 1 (an outer surface in this embodiment) an injection forming, a vacuum forming, a rotation forming, a printing and a coating manners. Thereafter, the heat isolative material 21 containing the hollow body 22 inside is heat or a surface primer is applied, so that the heat isolative material 21 containing the hollow body 22 is adhered on the outer surface of the container 1. In this manner, the heat isolative material 21 containing the hollow body 22 inside is formed as the heat isolative layer 2 on the outer surface of the container 1 after being heated. Finally, the protective layer 3 is further coated onto the heat isolative layer 2. As such, the efficacies of a reduced volume, a reduced transportation cost, and an improved heat isolative effect. Referring to FIGS. 6 and 7, a schematic diagram of a second specific structure where the heat isolative layer is coated on the paper board according to the first embodiment of the present invention, and a schematic diagram of a cross-sectional view of a second specific structure according to the first embodiment of the present invention are shown therein, respectively.

In addition to the above structure, a second specific structure may also be presented. The difference is that the container 1 is formed by folding up the paper board 11, the paper board 11 has a plurality of seams 12, 13, 15 at its circumference, and the heat isolative layer 2 is disposed on the inner surface of the container 1 by using the same manner as that provided in the first embodiment and exempted from the seams 12, 13, 15.

In formation by folding up, the seam 12 at the side end of the paper board 11 is combined with the outer rim of the other side end to form a cup body 10, and the seam 13 is laid the upper end of the cup body 10. After the paper board 11 is combined to form the cup body 10, the seam 13 at the upper end of the cup body 10 is curled down to form a curled side and then pressed and folded up to present a flat cup rim 13a, and then the seam 15 at the lower end of the cup body 10 is combined with a cup bottom 14, so that the container 1 is formed.

In the fabrication, the heat isolative material containing the hollow body 22 is coated locally on the at least the surface (the inner side surface in this embodiment) of the container 1 by using an injection forming, extrusion forming, hydraulic forming, laminate forming, vacuum forming, rotation forming, printing or coating. The, a heating process and a primer is applied so that the heat isolative material 21 containing the hollow body 22 inside is adhered onto the inner side surface of the container 1. As such, a heat isolative layer 2 is formed on the inner side surface of the container 1 after being heated of the heat isolative material 21 containing the hollow body 22.

Finally, the protective 3 is further coated on the heat isolative layer 2. In this manner, the efficacies of a reduced volume, a reduced transportation cost, and an improved heat isolative effect, by using an isolative layer containing a hollow body may be achieved.

Referring to FIG. 8, a schematic diagram of a cross-sectional view of a third specific structure according to the first embodiment of the present invention is shown therein. As shown, the present invention may also have third specific structure in addition to that set forth in the first embodiment. The difference is that the heat isolative layer 2 may be disposed on the surface of the outer and inner sides of the container 1 by using the manner set forth for the first and second specific structures, so that may achieve the same efficacy associated with the first and second specific structures mentioned in the first embodiment. In addition, this embodiment may further satisfy with the requirements for an actual use.

FIGS. 9 through 11, a schematic diagram illustrating a fabricating process according to a second embodiment of the present invention, a schematic diagram of a specific structure where the heat isolative layer is coated on the paper board according to the second embodiment of the present invention, and a schematic diagram of a sectional view of the specific structure according to the second embodiment of the present invention.

As shown, In addition to the structure set forth in the first embodiment, a second embodiment may also be possible. The difference is that the paper board 41 provided as having the seams 42, 43 at its circumference in step S21 may also be the heat isolative material containing the hollow body 44, and the hollow body 44 is exempted from the seams 42, 43. Thereafter, in step S22, the paper board 41 is folded into a container 4, and a protective layer 5 is coated on at least a surface of the container 4.

When the present invention is folded up, the paper board 41 is connected to the inner rim at the other end at its seam 42 at a side end to form a cup body 40, and the seam 43 is laid on the upper end of the cup body 40. After the paper board 41 is connected to the cup body 40, the seam 43 at the upper end of the cup body 40 is curled down to form a curled side and then pressed and folded up into a flat cup rim 43a. Thereafter, the inner rim at the lower rim of the cup body 40 . . . a cup bottom 45, in such a manner that the container 4 is formed.

In fabrication, the protective layer 5 is coated on at least a surface (the outer surface in this embodiment) of the container 4 containing the hollow body 44. The protective layer 5 has its material made of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), or epoxy, so that it may be adhered on the outer surface of the container 4 containing the hollow body 44. In this manner, in addition to the efficacy mentioned in the first embodiment, such made container 44 may further satisfy the actual use. In addition, the protective layer 5 provided by the present invention may be disposed on the inner surface of the container 4, or the surface of the outer and the inner sides of the container 4, depending up the user's requirement.

Referring to FIG. 12, a schematic diagram of a sectional view of a second specific structure according to the second embodiment of the present invention. As shown, in addition to the specific structure mentioned in the second embodiment, the present specific structure may also be possible. The difference is that the protective layer 5 is locally coated on the surface of the container 4 with the heat isolative material 51 containing the hollow body 52 and exempted from the seams 42, 43. The protective layer 51 has its material made of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy. In addition, in addition to the efficacies associated with the specific structure of the first embodiment and the second embodiment, the container 4 may further satisfy with the actual use.

In summary, the present invention is a method for fabricating a heat isolative container and particularly to such heat isolative container featuring a reduced volume, a reduced transportation cost, and an improved heat isolative effect, by using an isolative layer containing a hollow body.

From all these views, the present invention may be deemed as being more effective, practical, useful for the consumer's demand, and thus may meet with the requirements for a patent.

The above described is merely examples and preferred embodiments of the present invention, and not exemplified to intend to limit the present invention. Any modifications and changes without departing from the scope of the spirit of the present invention are deemed as within the scope of the present invention. The scope of the present invention is to be interpreted with the scope as defined in the claims.

Claims

1. A method for fabricating a heat isolative paper container, comprising steps of:

(A1) providing a paper board, having a plurality of seams at a circumference thereof; and

(B1) folding the paper board into a container after locally coating a heat isolative material on at least a surface of the paper board containing a hollow body therein, heating the container so that the heat isolative material containing the hollow body therein is adhered to at least a surface of the container, so as to provide a heat isolative layer on the surface of the container, wherein the heat isolative material is selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

2. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the container includes a paper cup body, a paper tray body and a paper lunch box.

3. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the heat isolative layer is coated on an outer surface of the container.

4. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the heat isolative layer is coated on an inner surface of the container.

5. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the heat isolative layer is coated on the outer and inner surfaces of the container.

6. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the hollow body has a particle diameter ranging from 10 to 350 μm.

7. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the heat isolative layer of the heat isolative layer has a heat isolation coefficient ranging from 0.003 to 0.05.

8. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the hollow body includes a hollow glass bead, a hollow ceramic bead, and a hollow plastic body.

9. The method for fabricating a heat isolative paper container as claimed in claim 1, wherein the hollow body is in a vacuum or a non-vacuum state.

10. The method for fabricating a heat isolative paper container as claimed in claim 1, further comprising a step of further coating a protective layer, the protective layer having a material selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

11. The method for fabricating a heat isolative paper container as claimed in claim 1, wherein the heat isolative material containing the hollow body therein is coated as the heat isolative layer on the surface of the container by an injection forming, a vacuum forming, a rotation forming, a printing and a coating manners.

12. A method for fabricating a heat isolative paper container, comprising steps of:

(A2) providing a paper board, having a plurality of seams at a circumference thereof, the paper board being a heat isolative material containing a hollow body therein, the hollow body being exempted from each of the plurality of seams; and

(B2) folding the paper board into a container, and coating a protective layer onto at least a surface of the container.

13. The method for fabricating the heat isolative paper container as claimed in claim 12, wherein the heat isolative material is selected from a group consisting of polyurethane, PU, acrylic resin, polyethylene (PE), polypropylene (PP), polylactide (PLA), and epoxy.

14. The method for fabricating the heat isolative paper container as claimed in claim 12, wherein the protective layer is locally coated onto the surface of the container and is exempted from each of the plurality of seams.

15. The method for fabricating the heat isolative paper container as claimed in claim 12, wherein the container includes a paper cup body, a paper tray body and a paper lunch box.

16. The method for fabricating the heat isolative paper container as claimed in claim 12, wherein the hollow body has a particle diameter ranging from 10 to 350 μm.

17. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the heat isolative layer of the heat isolative layer has a heat isolation coefficient ranging from 0.003 to 0.05.

18. The method for fabricating the heat isolative paper container as claimed in claim 1, wherein the hollow body includes a hollow glass bead, a hollow ceramic bead, and a hollow plastic body.

19. The method for fabricating a heat isolative paper container as claimed in claim 12, wherein the hollow body is in a vacuum or a non-vacuum state.

20. The method for fabricating a heat isolative paper container as claimed in claim 12, wherein the protective layer is coated on an outer surface or an inner surface of the container.