TWM507229U - Paper pulp molding container with film on both sides - Google Patents

Description

Double-sided coated pulp molded container

The present invention relates to a double-sided coated pulp molding container, in particular to a structure in which an inner and outer pulp molding container is compositely formed to completely seal the outer convex surface and the concave surface into a double-sided coating.

According to the traditional disposable tableware (disposable tableware), most of them are made of plastic products, styrofoam (polystyrene) or paper, and the disposable tableware made of styrofoam (polystyrene). The heat will emit toxins, which are harmful to human health, and the tableware cannot be naturally decomposed, which will cause environmental pollution. Therefore, it has been banned in many countries.

After pressing, the disposable table made of paper, because more than 90% of the raw materials are made of pulp and other materials, but because the pulp tableware is not waterproof, the front will be infiltrated by the sauce or oil of the food. The softening is also caused. Similarly, the reverse side of the pulp tableware is also susceptible to moisture and softening; therefore, in order to avoid the infiltration of the juice or the attached juice, the conventional improvement method is as shown in Fig. 1, which is attached to the pulp container 101. The concave surface (loading surface) is coated with a waterproof film 102 in the form of a molding film to constitute a pulp molding container 100; the juice attached to the food or the load is isolated by the film 102 The problem that the infiltration of the juice causes the pulp container 101 to soften is solved. However, at present, the technology and process of the pulp molded container is to dry the heat setting of the wet pulp of the pulp container 101, and then the film 102 is placed above. Since the pulp container 101 has pores, the film can be vacuumed from the bottom surface. The molding 102 covers the inner concave surface 104 of the pulp container 101. Since the outer convex surface 103 has no pores after the molding film 102 is formed, the film can be processed again, so that the commercially available pulp is currently available. The molded container 100 is a single-sided film and cannot be double-sided. The structure of the film. As a result, the pulp molded container 100 may still be softened due to the moisture of the container convex surface 103; further, the pulp molded container 100 is usually stacked for convenient transportation and storage, but the pulp molded container is used below. The concave surface 104 of the container 100 of 100 will contact the container convex surface 103 of the pulp molding container 100 at the top, causing the concave surface 104 of the container of the pulp molding container 100 to have a problem of easily sticking to the paper dust, the load (especially food). It may be contaminated as a result.

Further, the above-mentioned pulp-molding container 100 has problems such as insufficient structural strength and poor heat resistance, and therefore, there is still room for improvement.

The main purpose of the present invention is to provide a double-sided coated pulp molded container which has the effect that the convex surface of the container does not get wet and the concave surface of the container does not stick to paper dust.

Another object of the present invention is to provide a double-sided coated pulp molded container which has the effect of increasing the structural strength and heat insulation of the container.

Another object of the present invention is to provide a double-sided coated pulp molded container which has blood water which overflows fresh food from being left in a concave surface, so that the fresh food is separated from blood water, thereby maintaining the freshness of the food. .

In order to achieve the above effects, the structural features of the present invention include: an inner layer container, which is an inner concave body formed by pulp, the inner concave inner edge surface forms a first surface, and the opposite outer side surface forms a second surface. a surface, and the peripheral edge of the opening of the concave body extends outward to form a first bonding frame edge, the first bonding frame edge has an upper surface and an opposite surface; a concave film is attached to the concave surface The first surface of the body and the upper surface of the first bonding frame are integrated with the inner layer container to form an inner layer pulp molding container having an inner edge surface; and an outer container a convex body formed of pulp and opposite to the inner layer container, the outer convex inner edge surface forming a third surface, and the opposite outer side surface forming a a fourth surface, and the outer peripheral edge of the outer convex body extends outwardly relative to the first joint frame edge of the inner concave body to form a second joint frame edge which can abut against each other, the second joint frame edge has an upper edge a surface and an opposite surface; a convex film attached to the fourth surface of the outer convex body and the lower surface of the second combined frame edge, and integrated with the outer container to form an outer edge An outer layer pulp molding container having a film, and the outer pulp molding container is formed by a reverse direction of 180° in the same opening direction as the inner layer pulp molding container; and the inner layer of the pulp molded container is folded Putting in the outer pulp molding container, and leaving a gap between the second surface of the concave body and the third surface of the outer convex body, and sealingly bonding with the lower surface of the first bonding frame edge The upper surface of the second joint frame is formed by integrating the inner layer pulp molding container and the outer layer pulp molding container to form a pulp molded container having a double-sided film.

According to the foregoing feature, the outer periphery of the first and second bonding frame edges is heat sealed to form a side with a reserved film.

According to the foregoing feature, the second surface of the concave body is provided with a plurality of transverse ribs arranged in an intermittent manner, and the third surface of the external convex body is oppositely provided with a plurality of longitudinal ribs arranged in an array, so that the two are combined Forming a crisscrossed network reinforcement structure. Or the second surface of the concave body is provided with a plurality of longitudinal ribs arranged in an array, and the third surface of the external convex body is oppositely provided with a plurality of transverse ribs arranged in a discontinuous manner, so that the two are combined to form a crisscross Mesh reinforcement structure.

According to the foregoing feature, the concave surface of the inner layer molded pulp container is provided with a plurality of flow guiding holes, and the gap reserved between the second surface and the third surface forms a communication structure.

By means of the above-mentioned technical means, the present invention overcomes the conventional pulp-molded tableware, and can only be used for the absence of a single-sided film, and the container is molded with a double-sided film to prevent the sauce or oil from penetrating. The film surface, and the concave surface of the container will not be softened by moisture, but also completely sealed on both sides of the inner and outer sides, and will not stick to the paper dust when stacked. Furthermore, the double-layer composite structure and the interlaced ribs of the interlayer gap can enhance the overall strength and heat insulation effect of the tableware.

10‧‧‧ Inner container

11‧‧‧ concave body

12‧‧‧ first surface

13‧‧‧ second surface

131‧‧‧lateral ribs

14‧‧‧ first combined frame

141, 441‧‧‧ upper surface

142, 442‧‧‧ lower surface

20‧‧‧ concave film

21‧‧‧Edge

30‧‧‧Inner molded pulp container

31‧‧‧Inlet

40‧‧‧ outer container

41‧‧‧Outer convex body

42‧‧‧ third surface

421‧‧‧ longitudinal ribs

43‧‧‧ fourth surface

44‧‧‧second joint frame

50‧‧‧ convex film

60‧‧‧ outer pulp molded container

70‧‧‧Double-coated pulp molded container

71‧‧‧ gap

Figure 1 is a cross-sectional view showing the structure of a conventional single-sided pulp molding tray.

Figure 2 is an exploded perspective view of a preferred embodiment of the present invention.

Fig. 2A is a schematic view showing the molding of an outer layer pulp molded container of the present invention.

Figure 3 is an exploded perspective view of the main structure of the present creation.

4A is a combined perspective view of a possible embodiment of the present invention.

4B is a combined perspective view of another possible embodiment of the present invention.

Figure 5 is a cross-sectional view showing the structure of the present creation.

Figure 6 is an enlarged view of a portion of the structure of Figure 5.

First, referring to FIG. 2 to FIG. 6, a preferred embodiment of the present invention comprises: an inner layer container 10, which is a concave body 11 formed by a pulp in a concave mold, and the inner concave body 11 is inside. The rim surface forms a first surface 12, and the opposite outer side surface defines a second surface 13, and the opening periphery of the inner concave body 11 extends outward to form a first bonding frame edge 14, the first bonding frame edge 14 having An upper surface 141 and an opposite surface 142.

A concave film 20 is attached to the first surface 12 of the concave body 11 and the upper surface 141 of the first bonding frame 14 to be integrated with the inner container 10, thereby forming a film on the inner edge surface. One of the inner pulp molded containers 30. As shown in the upper part of Fig. 2, the manner in which the pulp molded container is coated on the surface of the inner concave body 11 is the prior art (Prior Art), and the main patents are not described herein.

As described above, since the pulp molded containers are only one-sided overmolded, the double-sided overmolding structure cannot be achieved. To this end, the present invention further uses an outer container 40 which is formed by a pulp in a convex mold (not shown) as shown in FIG. 2A, that is, the outer container 40. The outer convex body 41 formed by the mold having the opposite shape to the inner layer container 10, as shown in FIG. 2, the inner surface of the outer convex body 41 forms a third surface 42 and the outer side surface forms a The fourth surface 43 is formed, and the fourth surface 43 of the outer layer container 40 is located above the convex mold, and the third surface 42 is downward. Thus, the outer surface of the outer convex body 41 is formed. The fourth surface 43 is capable of performing a laminating operation in a subsequent process, and further, in cooperation with the shape of the inner layer container 10, the peripheral edge of the outer convex body 41 is opposite to the first combined frame edge 14 of the inner concave body 11, The outer joint defines a second joint frame 44 that can abut against each other. The second joint frame 44 has an upper surface 441 and an opposite lower surface 442.

A convex film 50 is attached to the fourth surface 43 of the outer convex body 41 and the lower surface 442 of the second bonding frame 44, and is integrated with the outer layer container 40, thereby forming a film on the outer edge surface. One of the outer pulp molded containers 60. The outer pulp molded container 60 is formed, as shown in Fig. 3, to be turned 180° in the same direction as the inner pulp molded container, so that it can be further combined with the inner pulp molded container 30.

According to the above, when the inner layer pulp molding container 30 and the outer layer pulp molding container 60 are respectively completed, a film of about 2 mm can be reserved around the first and second bonding frame edges 14, 44 (the concave film 20) Or either or both of the convex film 50, and then the inner layer pulp molding container 30 is stacked in the outer pulp molding container 60, and the second surface 13 of the concave body 11 is A gap 71 (shown in FIG. 6) is reserved between the third surfaces 43 of the outer convex body 41, and the lower surface 142 of the first joint frame 14 is sealingly bonded to the second joint frame by heat pressing. The upper surface 441 of the rim 44 is used to mold the inner layer pulp molding container 30 and the outer layer pulp The container 60 is integrated into one body to form a pulp molded container 70 having a double-sided film. In this embodiment, after the inner layer pulp molding container 30 and the outer layer pulp molding container 60 are integrated into one body, as shown in FIG. 6, finally, the surrounding film is sealed with a predetermined film to seal the gap. In this way, the pulp portion is completely covered by the concave film 20 and the convex film 50, and is waterproof. Furthermore, the double-sided coated pulp molding container 70 is formed by inner and outer layers of the inner layer pulp molding container 30 and the outer layer pulp molding container 60, and the two are as shown in the figure. As shown in Fig. 6, there is a gap 71 such that if the concave surface of the double-coated film-forming container 70 carries the hot food, the gap 71 has a heat insulating effect when the user touches the outer layer of the pulp molding. When the container 60 is used, it is possible to avoid being burnt.

In the present embodiment, the double-coated film pulp molding container 70 is formed as a tray-shaped body. However, the present invention is not limited thereto, and may be formed into a shape such as a bowl, a package, or a lunch box.

In this embodiment, the concave film 20 and the convex film 50 may include, but are not limited to, polyethylene (polyethylene), cyclohexanediol (PETG), polylactic acid (PLA, Polylactide). Composition.

In this embodiment, the second surface 13 formed by the concave body 11 is provided with a plurality of laterally extending transverse ribs 131 (the horizontal direction shown in FIG. 2 is the X-axis direction), and the convex portion is convex. The third surface 42 of the body 41 is oppositely provided with a plurality of longitudinally extending ribs 421 (Y-axis), and the two are combined to form a crisscross-shaped mesh reinforcing structure. However, the second surface 13 of the concave body 11 may also be formed as a plurality of longitudinal ribs arranged in an array, and the third surface 42 of the external convex body 41 may be arranged in a plurality of intervals. The lateral ribs, so that the two can be combined to form a crisscross-shaped mesh reinforcing structure, which will not be described.

4A is another possible embodiment of the present invention, which is a feature of the previous embodiment, and thus the same structure is represented by the same figure, except that the pulp container 30 is further molded in the inner layer. The concave surface is provided with a plurality of drainage holes 31, as shown in FIG. 6 and FIG. 4A, The gap 71 reserved between the second surface 13 and the third surface 42 forms a communication structure. As a result, the blood water overflowing from the fresh food placed on the concave surface of the inner layer molded pulp container 30 naturally flows from the flow guiding hole 31 into the gap 71 due to the principle of gravity, due to the double sided The second surface 13 and the third surface 42 of the coated pulp molded container 70 are not coated with the surface of the pulp, so that the pulp itself has direct water absorption, so that it is not necessary to additionally add water absorption such as sponge in the gap 71. material. Therefore, the diversion hole 31 of the present invention can introduce the blood water overflowing from the fresh food into the gap 71 without leaving the concave surface, thereby separating the fresh food from the blood water, and directly adsorbing the blood water by using the pulp of the gap 71 interlayer. Oily water prevents food from spoiling, thus maintaining the freshness and aesthetics of the food.

By means of the above-mentioned technical means, the present invention overcomes the conventional pulp-molded tableware, and can only be used for the absence of a single-sided film, and the container 70 is molded with a double-sided film to prevent the sauce or oil from penetrating into the film surface, and the container The concave surface will not be softened by moisture, and it will be completely sealed on both sides of the inner and outer sides, and will not stick to the paper dust when stacked. Furthermore, the double-layer composite structure and the criss-crossing mesh rib structure of the interlayer gap 71 can enhance the overall strength and heat insulation effect of the tableware.

In summary, the structure disclosed in the present invention is unprecedented, and can indeed achieve the improvement of efficacy, and has industrial availability, fully conforms to the new patent requirements, and invites the bureau to grant patents to encourage innovation. There is no sense of morality.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and those skilled in the art, which are subject to the spirit of the present invention, should be included in the scope of the patent application.

10‧‧‧ Inner container

11‧‧‧ concave body

12‧‧‧ first surface

13‧‧‧ second surface

131‧‧‧lateral ribs

14‧‧‧ first combined frame

141, 441‧‧‧ upper surface

142, 442‧‧‧ lower surface

20‧‧‧ concave film

30‧‧‧Inner molded pulp container

40‧‧‧ outer container

41‧‧‧Outer convex body

42‧‧‧ third surface

421‧‧‧ longitudinal ribs

43‧‧‧ fourth surface

44‧‧‧second joint frame

50‧‧‧ convex film

60‧‧‧ outer pulp molded container

70‧‧‧Double-coated pulp molded container

Claims (6)

A double-sided coated pulp molding container comprising: an inner layer container, wherein the inner concave surface formed by the pulp forms a first surface, and the outer side surface forms a second surface a surface, and the peripheral edge of the opening of the concave body extends outward to form a first bonding frame edge, the first bonding frame edge has an upper surface and an opposite surface; a concave film is attached to the concave surface The first surface of the body and the upper surface of the first bonding frame are integrated with the inner layer container to form an inner layer pulp molding container having an inner edge surface; and an outer container a convex body formed by the pulp and opposite to the inner layer container, the outer convex inner edge surface forming a third surface, and the opposite outer side surface forming a fourth surface, and the outer convex body opening periphery is opposite to The first bonding frame edge of the concave body extends outward to form a second bonding frame edge which can abut against each other, the second bonding frame edge has an upper surface and an opposite surface lower surface; a convex film, Attached to the convex body a fourth surface and a lower surface of the second combined frame edge, and integrated with the outer layer container, thereby forming an outer layer pulp molding container having a film on the outer edge surface, and the outer pulp molding container is inverted after molding a direction of 180°, in the same opening direction as the inner layer pulp molding container; and the inner layer pulp molding container is stacked in the outer layer pulp molding container, and the second surface of the concave body is externally Between the third surface of the convex body, a gap is reserved, and the lower surface of the first bonding frame is sealingly bonded to the upper surface of the second bonding frame edge, so that the inner layer pulp molding container and the outer layer pulp The molded containers are integrated into one body to form a pulp molded container having a double-sided film. a double-sided coated pulp molded container as claimed in claim 1, wherein The circumference of the first and second bonding frame edges is further sealed by a reserved film to form an edge. The double-sided coated pulp molded container according to claim 1, wherein the second surface of the concave body is provided with a plurality of laterally arranged transverse ribs, and the third surface of the external convex body The longitudinal ribs are arranged in a plurality of rows, and the two are combined to form a crisscross-shaped reinforcing structure. The double-sided coated pulp molded container according to claim 1, wherein the second surface of the concave body is provided with a plurality of longitudinal ribs arranged in an array, and the third surface of the external convex body is opposite There are a plurality of transverse ribs arranged in a discontinuous arrangement, and the two are combined to form a crisscross-shaped mesh reinforcing structure. The double-sided coated pulp molded container according to claim 1, further comprising a plurality of flow guiding holes on the concave surface of the inner molded pulp container, and the second surface and the third surface The gap reserved between them forms a connected structure. The double-sided coated pulp molded container according to claim 1, wherein the concave film and the convex film comprise: polyethylene (PE), cyclohexanediol (PETG), polylactic acid (PLA) Any of them.