TWM583428U - Paper-based composite structure of beverage bottle - Google Patents

Abstract

The paper discloses a paper-based composite structure of a beverage bottle, comprising: a bottle mouth, a bottle cap for closing the bottle mouth, a bottle body, and a bottle bottom for closing the bottom end of the bottle body; the bottle mouth includes a tube Body and upper bottle body, the tubular body is made of biodegradable plastic, the upper bottle body is made of stone paper; the top of the bottle body is tightly connected to the upper bottle body, and the bottle body is made of a stone paper-based composite paper The tubular spiral structure can improve the structural strength; the new model is made entirely of biodegradable environmentally friendly materials, and the bottle body is a tubular spiral structure made of stone paper-based composite paper with at least three layers of structure, ensuring sufficient Its structural strength, combined with the waterproofing and plasticity characteristics of stone paper, can form a necked portion on the bottle body or produce the required shape design. It has the beneficial effects of being easy to manufacture and improving the visual beauty of the bottle body.

Description

Paper-based composite structure for beverage bottles

The invention relates to a structure of a beverage container, in particular to a paper-based composite structure of a beverage bottle.

At present, the most widely used beverage containers in the market are mostly plastic bottles (also called PET bottles). The traditional raw materials for manufacturing plastic bottles are mainly polyethylene terephthalate (PET). And the use of PET bottles, but PET bottles can not be naturally degraded, so how to deal with the problem of PET bottles waste has become a major environmental issue facing all countries.

In order to solve the environmental protection problems caused by plastic bottles, containers made of environmentally-friendly materials that can be naturally degraded have been proposed and put into mass production applications.

In the "Paper Container" of the approved Taiwan Patent Certificate No. TW M513853U, the proposed paper container uses paper produced from traditional paper paddles as the main raw material. Although this paper container does not use plastic, But the need to consume wood or similar plant fibers will also cause the consumption of forest resources, and it is not in line with global environmental protection goals to reduce carbon dioxide.

In the published Chinese invention patent application publication number CN 103625726 A, a "paper-plastic bottle body and its processing technology" are disclosed. This paper-plastic bottle body includes a bottle body and a plastic end provided on the upper part of the bottle body. The bottle body includes an upwardly opened paper tube, and the plastic end includes A neck portion extends downward from the neck portion to form a shoulder portion; the shoulder portion is in communication with the interior of the neck portion, and a lower edge thereof is closely engaged with the opening of the paper tube to close the inner cavity of the paper tube. Because the traditional wooden paddle paper does not have plasticity, this paper-plastic bottle body still inevitably still uses plastic to make the plastic tip. In order to solve the technical problem that the paper bottle body cannot be waterproof, the paper tube paper is made. The surface of the substrate needs to be covered with film to form a waterproof inner plastic layer and an outer plastic layer on the surface of the paper substrate. Basically, it is still difficult to achieve the maximum effect of not using plastic.

The applicant proposed a new type of "stone-paper container structure" in the authorized Taiwanese new patent certificate number TW M565711, which is basically made of a material with at least three stone-paper layers. Because stone paper is basically inorganic Fillers (such as calcium carbonate CaCO3) and plastics are used to mix materials. The traditional wood pulp paper is not used at all, which can reduce the consumption of tree resources in the traditional paper industry. The plastic contained in stone paper can be biodegradable organic plastics (such as Aliphatic or semi-aromatic polyesters (such as PLA, PBS, PBAT, etc.), which have the effect of natural degradation, can also be recycled and reprocessed, which fully meets the concept of protecting the environment. Although this stone paper container structure is made of stone paper that conforms to the concept of environmental protection, the technical strength of simple stone paper cannot directly replace the technical problem of making plastic beverage bottles. The above stone paper container is still mainly used to replace traditional paper cups. .

Based on the characteristics of stone paper conforming to the concept of environmental protection, the applicant proposed a paper-based composite structure for beverage bottles through years of practical experience and technology, which overcomes the technical problem that stone paper cannot directly replace plastic to make beverage bottles, and solves traditional plastic bottles And environmental issues caused by paper containers.

In the authorized Chinese Utility Model Patent Authorization Bulletin No. CN207210842U, a stone paper for making a container is proposed. The stone paper includes: stone Head paper base paper layer, printing coating layer and coating layer; the printing coating layer is coated on one side of the stone paper base paper layer, and the coating layer is coated on the other side of the stone paper base paper layer; the stone paper base paper The hot-melt temperature of the layer is higher than the hot-melt temperature of the coating layer; preferably, the coating material of the coating layer is polylactic acid; the present invention can realize effective recycling and reuse of the container and reduce the use cost. The stone paper used for making containers proposed by the above-mentioned new technology has only one layer structure, so the structural strength of the containers made is limited.

In order to overcome the technical problem that stone paper cannot directly replace plastic to make beverage bottles, and at the same time to solve the environmental protection problems caused by traditional plastic bottles and paper containers, the present invention proposes a paper-based composite structure for beverage bottles, which is entirely made of biodegradable environmentally friendly materials Manufacture can solve the technical problem that stone paper is difficult to be directly applied to the production of beverage containers, and at the same time ensure the structural strength required for the use of stone paper to make beverage containers.

Based on solving the above technical problems, a technical solution of the paper-based composite structure of the novel beverage bottle includes a bottle cap, which is a tubular structure sealed at one end and opened at the other end as a cap opening. Screw mouth; a bottle mouth containing a tubular body and an upper bottle body, the upper bottle body is made of stone paper, and the two ends of the upper bottle body have a first opening and a second opening, respectively, the aperture of the first opening is smaller than the first opening Two openings. The first opening is closely connected to the tubular body. The outer side of the tubular body has a ring-shaped rib protruding outward. The outer side of the tubular body has a screw above the rib and can be docked with the bottle cap. Fasten, the first opening has a connecting surface around it, and the rib of the tubular body can be tightly connected with the connecting surface; A bottle body is made of at least three layers of stone paper-based composite paper. The at least three layers of stone paper-based composite paper include at least a first layer of paper, a second layer of paper, and a third layer of paper. The paper is wound in a spiral winding manner, and the first layer of paper, the second layer of paper, and the third layer of paper are bonded to each other into a at least three-layer tubular structure as the bottle body. The top end of the body is closely connected to the second opening of the upper body of the bottle mouth, the first layer of paper becomes the outermost layer of the bottle body, the second layer of paper becomes the middle layer of the bottle body, and the third layer of paper becomes the inner layer of the bottle body; and The bottom of a bottle is made of stone paper. The bottom of the bottle is tightly connected to the bottom of the bottle and closes the opening at the bottom of the bottle.

The bottle cap and the tubular body of the bottle body are made of biodegradable plastic materials.

As a preferred structure of the bottle mouth, the rib portion is located at the bottom end of the tubular body, and the rib portion is tightly connected to the connection surface through an adhesive or high-frequency welding process.

As another preferred structure of the bottle mouth, the bottle mouth further includes a sealing ring and a locking member, the rib of the tubular body is provided at the middle position of the tubular body, and the outer side of the lower half of the tubular body has screw teeth. The locking member is a ring-shaped member having a thread on its inner diameter, and the lower half of the tubular body sequentially passes through the sealing ring and the first opening of the upper bottle body, and then the screw and lock of the lower half of the tubular body Tight pieces are tightly connected together.

As a preferred structure of the bottle body, the first layer of paper and the third layer of paper are stone paper, and the second layer of paper is recycled stone paper or traditional wood pulp paper.

As another preferred structure of the bottle body, the first layer of paper, the second layer of paper, and the third layer of line are stone paper.

As another preferred structure of the bottle body, the bottle body is made of four layers of stone The fourth layer is made of aluminum foil paper, and the aluminum foil paper is used as the inner side or the outer side of the bottle body.

As another preferred structure of the bottle body, the bottle body is made of five layers of stone paper-based composite paper, including: a first layer of paper, a second layer of paper, a third layer of paper, a fourth layer of paper, and a first layer of paper. Five-layer paper; the first, third, and fifth layers of paper are stone paper, the second and fourth layers of paper can be recycled paper, and the recycled paper can be recycled stone paper or traditional Wooden paddle paper.

As another preferred structure of the bottle body, the bottle body is made of five layers of stone paper-based composite paper, including: a first layer of paper, a second layer of paper, a third layer of paper, a fourth layer of paper, and a first layer of paper. Five layers of paper; the first, third and fifth layers of paper are stone paper, the second layer of paper can be recycled paper, and the recycled paper can be recycled stone paper or traditional wood pulp paper, The fourth layer of paper is aluminum foil.

The bottom of the bottle includes a bottom surface and a side wall surrounding the periphery of the bottom surface. The side wall of the bottom of the bottle is tightly connected to the inner side wall of the bottle body.

The side wall of the bottle bottom is tightly connected to the inner side wall of the bottle body using an adhesive or high frequency welding process.

As another preferred structure of the bottle body, the bottle body further has a necked portion near the top end.

As another preferred structure of the bottle body, the position of the lower half of the bottle body further has a shaped portion protruding outward or sinking inward.

The beneficial effect of the paper-based composite structure of the novel beverage bottle is that it is entirely made of biodegradable environmentally friendly materials, and the bottle body is a tubular spiral structure made of stone-paper-based composite paper, which ensures sufficient structural strength. Combined with the waterproofness of stone paper and The plasticity and other characteristics can form a necked portion on the bottle body or produce a desired shape design, and have the beneficial effects of being easy to manufacture and improving the visual beauty of the bottle body.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only the present invention. For some embodiments described in the application, for those of ordinary skill in the art, without drawing creative labor, other drawings may be obtained according to these drawings.

10‧‧‧ bottle cap

11‧‧‧Screw teeth

20‧‧‧ bottle mouth

21‧‧‧ Tubular body

22‧‧‧ Upper bottle body

221‧‧‧First opening

222‧‧‧Second opening

223‧‧‧Connecting surface

23‧‧‧ rib

23A‧‧‧ rib

24‧‧‧Screw

25‧‧‧sealing ring

26‧‧‧Locking parts

27‧‧‧Screw teeth

30‧‧‧ bottle body

32‧‧‧ neck neck

33‧‧‧Shaping Department

40‧‧‧bottom

41‧‧‧ underside

42‧‧‧ sidewall

50‧‧‧ first layer

50A‧‧‧ the first surface of the first layer of paper

50B‧‧‧ Second surface of the first layer of paper

60‧‧‧Second layer of paper

60A‧‧‧ the first surface of the second layer of paper

60B‧‧‧Second surface of second paper

70‧‧‧ Third layer of paper

70A‧‧‧ the first surface of the third layer of paper

80‧‧‧Fourth paper

90‧‧‧Fifth layer of paper

L‧‧‧long side

P‧‧‧Stone paper based composite paper

S‧‧‧ short side

FIG. 1 is an exploded view of an embodiment of a paper-based composite structure of the novel beverage bottle.

FIG. 2 is a sectional structural view of a paper-based composite structure of the beverage bottle shown in FIG. 1.

FIG. 3 is a schematic diagram of a partial structure of a paper-based composite structure of the novel beverage bottle, showing the structure of at least three layers of stone paper-based composite paper used for making a bottle body.

FIG. 4 is a partial structural schematic diagram of a paper-based composite structure of the novel beverage bottle, showing a cross-sectional structure of a bottle body made of at least three layers of stone-paper-based composite paper.

FIG. 5 is a structural exploded view of another embodiment of the paper-based composite structure of the novel beverage bottle.

6 is a sectional structural view of a paper-based composite structure of the beverage bottle shown in FIG. 5.

FIG. 7 is a sectional structural view of another embodiment of a paper-based composite structure of the novel beverage bottle.

FIG. 8 is a structural appearance view of an embodiment of a paper-based composite structure of the novel beverage bottle.

FIG. 9 is a structural appearance view of another embodiment of a paper-based composite structure of the novel beverage bottle.

FIG. 10 is a partial structural schematic diagram of a paper-based composite structure of the novel beverage bottle, showing a cross-sectional structure of a bottle body made of four-layer stone-paper-based composite paper.

Figures 11 and 12 are partial structural schematic diagrams of the paper-based composite structure of the novel beverage bottle, showing the cross-sectional structure of the bottle body made of five-layer stone paper-based composite paper.

The positional relationships described in the following embodiments include: up, down, left, and right. Unless otherwise specified, they are based on the directions of components shown in the drawings.

First, please refer to FIG. 1 and FIG. 2, which are structural exploded views and sectional structural views of an embodiment of the paper-based composite structure of the novel beverage bottle.

A preferred embodiment of the paper-based composite structure of the novel beverage bottle includes a bottle cap 10, a bottle mouth 20, a bottle body 30 and a bottle bottom 40.

The bottle cap 10 is basically a spiral bottle cap. The bottle cap 10 is a tubular structure sealed at one end and opened at the other end as a cap opening. The inner wall surface of the bottle cap 10 has screw teeth 11. A preferred implementation of the bottle cap 10 The method is to use biodegradable plastic materials (such as, but not limited to, PLA).

The bottle mouth 20 includes a tubular body 21 and an upper bottle body 22. The two ends of the upper bottle body 22 have a first opening 221 and a second opening 222, respectively. The preferred structure of the upper bottle body 22 is a conical tube (or It is also called a funnel shape, or it may be a slightly flat dish shape, in which the diameter of the first opening 221 is smaller than the diameter of the second opening 222, and the upper bottle body 22 is made of stone paper. The plasticity of the stone paper is used to heat the molding process. The first opening 221 is tightly connected to the tubular body 21. The preferred embodiment of the tubular body 21 is made of a biodegradable plastic material (such as but not limited to PLA). The outer side of the bottom end is provided with a ring-shaped rib 23 protruding outward. The outer side of the tubular body 21 has screw teeth 24 above the rib 23 and can be docked with the bottle cap 10, and the first opening 221 of the upper bottle body 22 Has a connecting surface 223 around it, The ribs 23 of the tubular body 21 can be tightly connected to the connection surface 223. For example, the effect of tight connection can be achieved by using gluing or high-frequency welding processes, thereby preventing the leakage of beverages or liquids (see FIG. 2).

Please refer to FIG. 5 and FIG. 6. As another preferred embodiment of the bottle mouth 20, it includes a tubular body 21, a sealing ring 25, a locking member 26 and a bottle body 22, as shown in FIG. 1 and FIG. 2 described above. The difference between the embodiments is that the rib 23A of the embodiment shown in FIG. 3 is provided at the middle position of the tubular body 21, the outside of the lower half of the tubular body 21 has a screw 27, and the locking member 26 is basically a ring-shaped member. In the inner diameter, there is a thread. In other words, the preferred embodiment of the locking member 26 is a nut. The lower half of the tubular body 21 passes through the seal ring 25 and the first opening 221 of the upper bottle body 22 in sequence. The screw 27 and the locking member 26 of the lower half of the tubular body 21 are tightly connected together (see FIG. 6), so as to provide a bottle mouth 20 with excellent structural strength, while ensuring that the tubular body 21 and the upper bottle body The joint of the first opening 221 of 22 has the effect of sealing and preventing leakage.

The bottle body 30 is basically a tubular spiral structure made of stone paper-based composite paper P (see Figs. 3 and 4) to ensure sufficient structural strength. The top of the bottle body 30 is tightly connected to the bottle mouth 20 The second opening 222 of the upper bottle body 22 can achieve a tight connection effect by using, for example, an adhesive or high-frequency welding process, thereby preventing the beverage or liquid from leaking.

The bottom 40 is made of stone paper. The bottom 40 is tightly connected to the bottom of the body 30 and closes the opening at the bottom of the body 30. A preferred embodiment of the bottom 40 is a cup-shaped structure made of stone paper. The bottle bottom 40 includes a bottom surface 41 and a side wall 42 surrounding the periphery of the bottom surface 41. The side wall 42 of the bottle bottom 40 is tightly connected to the inner side wall of the bottle body 30. For example, adhesion can be achieved by using a gluing or high-frequency welding process. The effect of connection, in turn, achieves the effect of preventing the leakage of beverages or liquids.

A preferred embodiment of the bottle body 30 is a tubular spiral structure made of a stone paper-based composite paper P having at least a three-layer structure. A preferred embodiment of the stone paper-based composite paper P having at least a three-layer structure is shown in FIG. 3 shows at least: the first layer of paper 50, the second layer of paper 60 and the third layer of paper 70, wherein the raw materials of the first layer of paper 50, the second layer of paper 60 and the third layer of paper 70 are long strips The strips have the same length as the short side S. The length of the long side L of these strips is not limited but should be at least sufficient to be wound into a bottle body; the first layer of paper 50. The second layer of paper 60 and the third layer of paper 70 have opposite first and second surfaces (to facilitate the explanation of the component symbols of each layer of paper, the letter A represents the first surface and the letter B represents the second surface. For example: 50A represents the first surface of the first layer of paper 50, 60B represents the second surface of the second layer of paper 60, and so on), and the length of the first layer of paper 50, the second layer of paper 60, and the third layer of paper 70 The sides L are stacked on top of each other in a shingled manner (see FIG. 3), and are bonded to each other with a portion occupying 1/2 of the short side width. The long sides of the first layer of paper 50, the second layer of paper 60, and the third layer of paper 70 are stacked on top of each other in such a way that the second surface 50B of the first layer of paper 50 occupies 1/2 of the first layer of paper 50. The second half of the short edge width is pasted on the first surface 60A of the second layer of paper 60, which occupies the first half of the second edge of the short paper width, and the second surface 60B of the second layer of paper 60 occupies the second layer. The second half of the width of the short side of the paper 60 is adhered to the first surface 70A of the third layer of paper 70 and the first half of the width of the short side of the third layer 70.

A preferred embodiment of the stone paper-based composite paper P having at least a three-layer structure, wherein the first layer of paper 50 and the third layer of paper 70 are stone paper, and the second layer of paper 60 may be recycled paper. The paper can be recycled stone paper or traditional wood pulp paper, especially using traditional wood pulp paper as the second layer of paper 60, which can further provide better support and ensure sufficient structural strength; Another preferred embodiment of the three-layer structure stone paper-based composite paper, wherein the first layer of paper 50, the second layer of paper 60, and the third layer of paper 70 are stone paper (including brand-new paper) Made of stone paper or recycled stone paper).

The stone paper-based composite paper P is wound in a spiral winding manner, and the first layer of paper 50, the second layer of paper 60, and the third layer of paper 70 are bonded to each other into a tubular structure of at least three layers in an overlapping manner. As the bottle body 30, the top end of the bottle body 30 is closely connected to the second opening 222 of the upper bottle body 22 of the bottle mouth 20, wherein the first layer of paper 50 becomes the outermost layer of the bottle body 30 and the second layer of paper 60 becomes the bottle. The middle layer of the body 30 and the third layer of paper 70 become the inner layer of the bottle body 30. Please refer to FIG. 4. The winding method of the stone paper-based composite paper P is to start from the end point of the first winding of the stone paper-based composite paper P and the winding part thereafter, and the first The first half of the second surface 50B occupies 1/2 of the short side width of the first layer of paper 50 is pasted to the first surface 60A of the second layer of paper 60 occupies the second half of the short side width of the second layer of paper 60. The first half of the second surface 60B of the two-layer paper 60 occupies 1/2 of the short side width of the second layer of paper 60 is adhered to the first surface 70A of the third layer of paper 70 occupies 1/2 of the short side width of the third layer of paper 70 The second half. The bottle body 30 having a structure of at least three layers, which is made by spiral winding and dislocation overlap, has no gaps and does not leak due to the waterproof property of stone paper. The bottle body 30 of at least three layers also has Can ensure sufficient structural strength.

Although the above embodiment discloses a three-layer structure of stone-paper-based composite paper P, it is not limited to three layers. In the same way, a paper-based material of the fourth layer or more can be used in the same way. The stone paper-based composite paper P is used to make the bottle body 30, and the paper-based material includes newly-made stone paper, recycled stone paper, or traditional wood pulp paper. The cross-sectional structure of the bottle body 30 made of the multi-layered stone-paper-based composite paper P will be disclosed below in conjunction with the illustrative drawings.

FIG. 7 illustrates a stone paper-based composite paper P having a 4-layer structure, including: a first layer of paper 50, a second layer of paper 60, a third layer of paper 70, and a fourth layer of paper 80, where the fourth layer of paper 80 is As the inner side of the bottle body 30, aluminum foil paper can provide the function of blocking ultraviolet rays. The first layer of paper 50 and the third layer of paper 70 are stone paper, and the second layer of paper 60 may be recycled stone paper or traditional wood pulp paper. FIG. 10 illustrates another stone paper-based composite paper P, which also has a four-layer structure, including: a first layer of paper 50, a second layer of paper 60, a third layer of paper 70, and a fourth layer of paper 80, and the difference from FIG. 7 The fourth layer of paper 80 is aluminum foil as the outer surface of the bottle body 30, which can provide a function of blocking ultraviolet rays.

FIG. 11 illustrates a stone paper-based composite paper P having a 5-layer structure, including: a first layer of paper 50, a second layer of paper 60, a third layer of paper 70, a fourth layer of paper 80, and a fifth layer of paper 90; It is a thickened and reinforced form based on the aforementioned three-layer structure of stone paper-based composite paper P. The first layer of paper 50, the third layer of paper 70, and the fifth layer of paper 90 are stone paper, and the second layer of paper 60 and The fourth layer of paper 80 may be recycled paper, and the recycled paper may be recycled stone paper or traditional wooden paddle paper.

FIG. 12 illustrates another stone paper-based composite paper P having a 5-layer structure, including: a first layer of paper 50, a second layer of paper 60, a third layer of paper 70, a fourth layer of paper 80, and a fifth layer of paper 90; The first layer of paper 50, the third layer of paper 70, and the fifth layer of paper 90 are stone paper. The second layer of paper 60 may be recycled paper. The recycled paper may be recycled stone paper or traditional wood pulp paper. The fourth layer of paper 80 is aluminum foil.

Since the stone paper contains thermoplastic plastic / resin and is waterproof, the process of making the bottle body 30 by winding the stone paper-based composite paper P can achieve the effects of multi-layer paper bonding and waterproofing through high frequency heat fusion or rolling heating process; In other preferred embodiments, an adhesive film can be coated on both sides of the aforementioned stone paper, and then the effect of multi-layer paper bonding can be further enhanced by a high-frequency heat melting or rolling heating process.

As a preferred embodiment of the paper-based composite structure of the novel beverage bottle, the bottle body 30 further has a necked portion 32 near the top (see FIG. 8), which can improve the structural strength of the bottle body 30 and facilitate the user. Hold, good plasticity based on stone paper The shape of the necked portion 32 may be formed by heating and rolling and then cooled to fix its shape; in other preferred embodiments, the position of the lower half of the bottle body 30 further has an outward protrusion or The shaped part 33 (see FIG. 9) that is sunken inwardly, such as annular ribs or annular depressions, can enhance the visual beauty of the bottle body 30 and produce a desired shape design.

The paper-based composite structure of the novel beverage bottle is entirely made of biodegradable environmentally-friendly materials, and the bottle body is a tubular spiral structure made of stone-paper-based composite paper, which ensures sufficient structural strength, combined with stone paper With the characteristics of waterproofness and plasticity, it can form a necked portion on the bottle body or produce a desired shape design. It has the beneficial effects of being easy to manufacture and improving the visual beauty of the bottle body.

Although the present invention has been disclosed as above through the above-mentioned embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and decorations without departing from the spirit and scope of the present invention. The scope of patent protection shall be subject to the definition in the claims of this application.

Claims (13)

A paper-based composite structure for a beverage bottle includes: a bottle cap, which is a tubular structure sealed at one end and opened at the other end as a mouth of the bottle cap; the inner wall surface of the bottle cap has screw teeth; a bottle mouth includes a tubular body And an upper bottle body, the upper bottle body is made of stone paper, and the two ends of the upper bottle body respectively have a first opening and a second opening, the aperture of the first opening is smaller than the aperture of the second opening, and the first An opening is tightly connected to the tubular body. The outer side of the tubular body has a ring-shaped rib protruding outward. The outer side of the tubular body has a screw thread above the rib and can be screwed against the bottle cap. There is a connecting surface around the first opening, and the rib of the tubular body can be tightly connected to the connecting surface; a bottle body is made of at least three layers of stone paper-based composite paper, and the at least three layers of stone The paper-based composite paper includes at least a first layer of paper, a second layer of paper, and a third layer of paper. The stone paper-based composite paper is wound in a spiral winding manner, and the first layer of paper, the The second paper and the third paper A tube structure bonded to at least three layers serves as the bottle body, the top end of the bottle body is tightly connected to the second opening of the upper bottle body of the bottle mouth, and the first layer of paper becomes the outermost layer of the bottle body, the first Two layers of paper become the middle layer of the bottle body, and the third layer of paper becomes the inner layer of the bottle body; and a bottle bottom, made of stone paper, the bottle bottom is tightly connected to the bottom end of the bottle body and closes the bottle body. Opening at the bottom of the bottle. According to the paper-based composite structure of a beverage bottle according to claim 1, the bottle cap and the tubular body of the bottle body are made of a biodegradable plastic material. According to the paper-based composite structure of a beverage bottle according to claim 1, the rib is located at the bottom end of the tubular body, and the rib is tightly connected to the connection surface through an adhesive or high frequency welding process. The paper-based composite structure of a beverage bottle according to claim 1, the bottle mouth further comprising a sealing ring and a locking member, the rib of the tubular body is provided at a middle position of the tubular body, and the bottom of the tubular body The outside of the half segment has a screw thread. The locking member is a ring-shaped member having a thread on its inner diameter. The lower half of the tubular body passes through the seal ring and the first opening of the upper bottle body in sequence. The screw of the lower half of the tubular body is tightly connected with the locking member. The paper-based composite structure of a beverage bottle according to claim 1, wherein the first layer of paper and the third layer of paper are stone paper, and the second layer of paper is recycled stone paper or traditional wood pulp paper. The paper-based composite structure of a beverage bottle according to claim 1, wherein the first layer of paper, the second layer of paper, and the third layer of line are stone paper. The paper-based composite structure of a beverage bottle according to claim 1, the bottle body is made of four layers of the stone paper-based composite paper, including: the first layer of paper, the second layer of paper, and the third layer Paper and a fourth layer of paper, the fourth layer is aluminum foil, and the aluminum foil serves as the inner side or the outer side of the bottle body. The paper-based composite structure of a beverage bottle according to claim 1, the bottle body is made of five layers of the stone paper-based composite paper, including: the first layer of paper, the second layer of paper, and the third layer Paper, a fourth layer of paper and a fifth layer of paper; the first layer of paper, the third layer of paper and the fifth layer of paper are stone paper, the second layer of paper and the fourth layer of paper are recycled paper, The recycled paper is recycled stone paper or traditional wooden paddle paper. The paper-based composite structure of a beverage bottle according to claim 1, the five-layer stone paper-based composite paper of the bottle body, comprising: the first layer of paper, the second layer of paper, the third layer of paper, A fourth layer of paper and a fifth layer of paper; the first layer of paper, the third layer of paper and the fifth layer of paper are stone paper, the second layer of paper is recycled paper, and the recycled paper is recycled stone Paper or traditional wood pulp paper, the fourth layer of paper is aluminum foil. The paper-based composite structure of a beverage bottle according to claim 1, the bottom of the bottle includes a bottom surface and a side wall surrounding the periphery of the bottom surface, and the side wall of the bottom of the bottle is tightly connected to the inner side wall of the bottle body. According to the paper-based composite structure of a beverage bottle according to claim 10, the side wall of the bottle bottom is tightly connected to the inner side wall of the bottle body using an adhesive or high frequency welding process. The paper-based composite structure of a beverage bottle according to claim 1, wherein the bottle body further has a necked portion near the top end. According to the paper-based composite structure of a beverage bottle according to claim 1, the position of the lower half of the bottle body further has a shaped portion protruding outward or sinking inward.