TWI545060B - Composite cup structure improved - Google Patents

Description

Composite cup structure improvement

The invention relates to a paper container improvement, in particular to an inner and outer cup composition which is easy to separate, so as to constitute a composite cup with good strength, good heat insulation and leakage resistance.

Press, commonly used in disposable containers containing liquids, including those made of plastic and paper. Among them, although the plastic container has the advantages of easy manufacture and low cost, the waterproof is good, but because of the single-layer structure, the heat insulation effect cannot be effectively provided in use; and the paper container is more complicated to manufacture than the plastic container, the cost is higher, and the waterproof effect and The structural strength is not as good as that of plastic containers. In order to achieve the heat insulation effect, it is usually made into a multi-layer structure or a thickened design, or a foamed thermal insulation layer combined with an inner layer or an outer layer, which achieves the intended purpose of heat insulation, but the cost Obviously too high.

A first object of the present invention is to provide a composite cup structure improvement, thereby integrating a film plastic body and a paper outer cup into one body, and using an extension piece formed by the cup edge of the phase sleeve to achieve easy separation And the effect of recycling.

The second object of the present invention is to provide a composite cup structure, which can be placed with a foamed heat insulation layer of the same material as the inner cup by the space formed by the gap between the inner and outer cups. Insulation, effect.

The third object of the present invention is to provide a composite cup structure improvement, which can be used for various types of window opening design by the peripheral surface of the cup of the paper outer cup, so as to achieve the purpose of marketing the product, but does not affect the sealing of the product package and Integrity.

The fourth object of the present invention is to provide a composite cup structure improvement, wherein the ratio of paper to plastic in the raw material used in the composite cup is 7:3, and the paper is mainly made of recycled paper, so as to achieve environmental protection and cost considerations. Benefits.

In order to achieve the above object, the inventors have devised a new composite cup, including There is a film plastic inner cup and a paper outer cup; the film plastic inner cup and the paper outer cup are formed with a curling edge, in particular: the film plastic inner cup has a curl slightly larger than the paper outer cup Crimping and forming a flat surface on the top surface, and forming an extending piece of any shape at the edge of the bead toward the bottom of the cup, whereby the inner side and the outer cup are overlapped, and the inner side of the film plastic inner cup is crimped The crimping of the paper-covered outer cup naturally forms a strong and leak-proof composite cup; the extension piece facilitates easy separation of the inner and outer cups for sorting and recycling of waste.

Wherein, the extending piece on the curling edge of the inner layer of the film plastic can be formed by various geometric shapes, such as any one of a teardrop shape, a convex shape, a circular shape, a polygonal shape and a rectangular shape; the circumferential surface of the cup of the paper outer cup can be made The window design of various geometric shapes, such as elliptical, horizontal bar, diamond, rectangular, circular, and straight bar.

In addition, the composite cup may further be provided with a heat insulating layer between the inner surface of the film plastic inner cup and the paper outer cup, and the heat insulating layer is formed by plastic foaming on the surface of the cup of the inner surface of the film plastic inner cup, and The selected material is the same as the inner plastic cup; thus, when the inner and outer cups are superposed, it naturally forms a strong strength, anti-leakage, and has the functions of heat insulation, heat preservation, cold preservation, and non-condensation of the outer cup wall. Composite cup.

(1) ‧‧‧film plastic inner cup

(11) ‧‧‧ hem

(12)‧‧‧ Extensions

(13) ‧‧‧ film

(F) ‧ ‧ flat surface

(2) ‧‧‧ paper cups

(21) ‧‧‧ hem

(22)‧‧‧ window

(3) ‧‧‧Insulation

The first figure is an exploded view of a composite cup in accordance with a preferred embodiment of the present invention.

The second drawing is a composite cup assembly diagram of a preferred embodiment of the present invention.

The third drawing is a cross-sectional view of a composite cup assembly in accordance with a preferred embodiment of the present invention.

The fourth figure is a plurality of different shape extensions on the inner cup curl of the composite cup according to a preferred embodiment of the present invention. The type of stretched piece.

The fifth figure is a plurality of different shapes on the outer surface of the outer cup of the composite cup according to a preferred embodiment of the present invention. The shape of the window.

Figure 6 is a composite cup assembly diagram of another preferred embodiment of the present invention.

Figure 7 is a cross-sectional view of a composite cup assembly in accordance with another preferred embodiment of the present invention.

Figure 8 is a cross-sectional view of a composite cup assembly in accordance with still another preferred embodiment of the present invention.

The ninth drawing is another structural form of the composite cup according to still another preferred embodiment of the present invention.

Please refer to the first to third figures together, and the composite cup structure of the present invention is improved, and the composition thereof comprises: a film plastic inner cup (1), and a paper outer cup (2), and the paper material used is The plastic ratio is 7:3 (ie 70% by weight: 30%), so that the paper outer cup (2) has better structural strength, can be beautifully printed for the purpose of product marketing; secondly, due to the high proportion of paper used, Therefore, it is optional to use recycled paper, which can take into consideration both environmental protection and cost considerations. At the same time, there is no food hygiene or safety concerns due to the contact with the contents of the contents.

Regarding the structure of the composite cup, the cup inner end of the film plastic inner cup (1) and the paper outer cup (2) are formed with a curling edge (11, 21), and the film plastic inner cup (1) roll The side (11) is slightly larger than the bead (21) of the paper outer cup (2) and the top surface forms a flat surface (F), thereby sealing the package requiring heat sealing to a tighter degree to ensure that the contents are sealed. It is completely isolated from the air and is not easily oxidized and spoiled. At the edge of the bead (11), an extension piece (12) of any geometric shape is formed toward the bottom of the cup, as shown in the second figure.

The film inner plastic cup (1) can be selected from PP (Polypropylene, polypropylene), PS (Polystyrene, polystyrene), PLA (Poly Lactic Acid, Polylactide, polylactic acid), PE (Polyethylene, polyethylene). And PET (Polyethylene Terephthalate, polyethylene terephthalate).

According to the above composite cup unit, in combination, the rolled outer edge of the film plastic inner cup (1) is unfolded by the processing method, and the paper outer cup (2) is placed outside the inner plastic film cup (1). And the curling edge (11) of the inner surface of the film plastic inner cup (1) is wrapped to cover the curling edge (21) of the paper outer cup (2), and after being superposed on each other, the molding mode of the inner plastic cup (1) is formed by the film plastic. It can completely avoid the doubt that the original single paper outer cup (2) has a section which is easy to cause leakage of the contents, so that it can be combined to form a good strength, anti-leakage, and has heat insulation, heat preservation and cold preservation. A composite cup with a non-condensing effect on the outer cup wall, as shown in the third figure.

In view of the above, the paper outer cup (2) outside the composite cup has a better structural strength, so that it can be beautifully printed to facilitate product marketing.

When the composite cup is to be separated, the film inner plastic cup (1) and the paper outer cup can be easily lifted by simply lifting the extending piece (12) of the curling edge (11) of the inner plastic cup (1). ) Separate into separate individuals and use them individually.

As can be seen from the above description, the composite cup of the present invention is a container of two different materials. Directly combined, and without the aid of glue, adhesive, etc., it can be combined to form a container which is better in structure and function than the conventional container. After the combination, after the use, the extension piece (12) can be used to quickly and easily separate the film plastic inner cup (1) from the paper outer cup (2), thus facilitating subsequent garbage sorting and recycling.

Please refer to the fourth and fifth figures. The extension piece (12) on the bead (11) of the inner plastic cup (1) can be formed in various geometric shapes, such as teardrop shape, convex shape, round shape, and more. Any one of an angular shape and a rectangular shape; the peripheral surface of the cup of the paper outer cup (2) can be designed as a window (22) of various geometric shapes, such as an elliptical shape, a horizontal strip shape, a rhombus shape, a rectangular shape, a circular shape, and a straight strip shape. Either one of them can be used to visualize the contents of the inner plastic cup (1), which is beneficial to the marketing of the product without affecting the sealing and integrity of the product packaging.

Please refer to the sixth and seventh figures together. For the implementation of the composite cup, when the contents of some of the contents need to be sealed, the processing method can be used to curl the cup of the inner plastic cup (1). 11) The sealing film (13) is sealed, and the top surface of the bead (11) is designed with a flat surface (F) instead of a general circular shape, so that the sealing procedure is better and tighter when the package is heat-sealed, so that The contents of the package are completely sealed from the air after sealing, and there is no oxidative corruption.

Referring to Figure 8, the above composite cup may further be provided with a heat insulation layer (3) between the film plastic inner cup (1) and the paper outer cup (2), the heat insulation layer (3) The plastic material is foamed and formed on the circumferential surface of the cup of the film plastic inner cup (1), and the selected material is the same as the inner plastic cup (1); thereby, when the inner and outer cups are superposed, the strength is naturally formed. It is a composite cup with good anti-leakage and heat insulation, heat preservation, cold preservation and non-condensation effect on the outer wall.

As shown in the ninth figure, this composite cup with heat insulation, heat preservation, cold preservation and non-condensing effect on the outer wall of the cup can be directly sealed as described above if some contents are required to be sealed. The sealing method is used to seal the bead curl (11) of the inner plastic cup (1) of the film plastic, so that the contents can be completely sealed from the air without being oxidized and corrupted.

The benefits achieved by the present invention include:

1. The inner and outer cups of different materials do not need to use glue or adhesive.

2. After the combined composite cup, the extension piece is used to make the inner and outer cups easy to use after material classification, garbage sorting and recycling.

3. The outer cup has better structural strength and can be beautifully printed to facilitate product marketing.

4. The material and molding mode of the inner cup can completely avoid the doubt that the original paper cup has a cross section which is easy to cause leakage of the contents contained therein.

5. The upper part of the inner cup is designed with a flat surface to be non-uniformly rounded, so that the packaging method requiring heat sealing is more tightly sealed, and the contents are completely sealed from the air and not easily oxidized and spoiled.

6. The extension piece of the plastic inner cup makes the inner and outer cups easy to separate but does not affect the tightness of the joint.

7. The cup surface of the outer cup can be used for various forms of window opening, which is beneficial to the marketing of goods but does not affect the sealing and integrity of the product packaging.

8. The ratio of paper to plastic in the raw materials used in the composite cup is 7:3, and the paper can use recycled paper. As a result, the contact between the contents and the composite cup is made of plastic inner cup. Although the proportion of paper materials is high, there is still no doubt about food hygiene or safety. Moreover, recycled paper can balance environmental protection and cost.

(1) ‧‧‧film plastic inner cup

(11) ‧‧‧ hem

(12)‧‧‧ Extensions

(13) ‧‧‧ film

(F) ‧ ‧ flat surface

(2) ‧‧‧ paper cups

(21) ‧‧‧ hem

Claims (10)

A composite cup comprising: a film plastic inner cup; a paper outer cup, wherein the film plastic inner cup and the paper outer cup are formed with a curling edge, and the film plastic inner cup is crimped Covering the bead of the outer cup of the paper, and forming a flat surface on the top surface of the inner cup of the film plastic; and an extending piece disposed on the edge of the bead of the inner cup of the plastic film and extending toward the bottom of the cup, wherein When separating the inner plastic cup of the film and the outer cup of the paper, the user separates the composite cup into two independent individuals by pulling up the extending piece in a direction away from the bottom of the cup. The composite cup according to claim 1, wherein the extending piece has a shape of a teardrop, a convex shape, a circular shape, a polygonal shape or a rectangular shape. The composite cup according to claim 1, wherein the outer surface of the cup of the paper outer cup has an opening, and the shape of the opening is elliptical, horizontal, rhombic, rectangular, circular or straight. . The composite cup according to claim 1, wherein the plastic inner cup is made of polypropylene, polystyrene, polylactic acid, polyethylene or polyethylene terephthalate. The composite cup according to claim 1, wherein a film is sealed on the flat surface of the bead of the inner end of the film plastic inner cup. The composite cup according to claim 1 or 4, wherein a heat insulating layer is further disposed between the plastic inner cup of the film plastic and the outer cup of the paper outer cup, wherein the heat insulating layer is formed by plastic foam molding. The inner surface of the cup of the film plastic inner cup. The composite cup according to claim 6, wherein the material of the heat insulation layer is the same as the inner plastic cup of the film. The composite cup according to claim 1, wherein the ratio of paper to plastic in the raw material used in the composite cup is 7:3. The composite cup according to claim 1 or 8, wherein the paper of the paper outer cup is recycled paper. The composite cup according to claim 1, wherein the film plastic inner cup and the paper outer cup are not joined by an adhesive.