CN111846582A

CN111846582A - Paper-base composite structure of beverage bottle

Info

Publication number: CN111846582A
Application number: CN201910333706.2A
Authority: CN
Inventors: 许喻婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-10-30

Abstract

The invention provides a paper-based composite structure of a beverage bottle, which comprises: the bottle comprises a bottle mouth, a bottle cap used for sealing the bottle mouth, a bottle body and a bottle bottom used for sealing the bottom end of the bottle body; the bottle mouth comprises a tubular body and an upper section of bottle body, the tubular body is made of biodegradable plastic, and the upper section of bottle body is made of stone paper; the top end of the bottle body is tightly connected with the upper section of the bottle body, and the bottle body is of a tubular spiral structure made of stone paper-based composite paper, so that the structural strength can be improved; the bottle body is completely made of biodegradable environment-friendly materials, the bottle body is of a tubular spiral structure which is made of stone paper-based composite paper with at least three layers of structures, sufficient structural strength is guaranteed, a necking part can be formed on the bottle body or a required modeling design can be generated by combining the characteristics of water resistance, plasticity and the like of the stone paper, and the bottle body has the advantages of being easy to process and manufacture and capable of improving the visual aesthetic feeling of the bottle body.

Description

Paper-base composite structure of beverage bottle

Technical Field

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

Background

Most of the most widely used beverage containers in the market at present are plastic bottles (or PET bottles), the raw material for manufacturing the traditional plastic bottles is mainly Polyethylene terephthalate (PET), and since PET bottles are manufactured and used in large quantities worldwide but cannot be naturally degraded, the problem of how to treat the garbage in PET bottles becomes a large environmental protection subject in all countries at present.

In order to solve the environmental problems caused by plastic bottles, containers made of naturally degradable environmental friendly materials are proposed and put into mass production.

In the approved "paper container" of taiwan new patent No. TW M513853U, the proposed paper container uses paper made from conventional pulp as main raw material, and the paper container does not use plastic, but needs to consume wood or similar plant fiber, and also causes consumption of forest resources, and also does not meet the environmental protection goal of reducing carbon dioxide worldwide.

In the published chinese patent application publication No. CN 103625726 a, a paper-plastic bottle and its processing technology are disclosed, the paper-plastic bottle comprises a bottle body and a plastic end arranged on the upper part of the bottle body, the bottle body comprises a paper tube with an upward opening, the plastic end comprises a neck part, and a shoulder part is formed by the downward extension of the neck part; the shoulder is communicated with the interior of the neck, and the lower edge of the shoulder is tightly jointed with the opening of the paper tube so as to seal the inner cavity of the paper tube. Because the traditional wood pulp paper has no plasticity, the plastic end of the paper-plastic bottle body is inevitably made of plastic, and in order to solve the technical problem that the paper bottle body cannot be waterproof, the surface of the paper base material for making the paper tube needs to be subjected to film coating operation to form a waterproof inner plastic layer and a waterproof outer plastic layer on the surface of the paper base material, and the effect of not using plastic is difficult to achieve the maximization basically.

The applicant proposes a "stone paper container structure" in taiwan patent No. TW M565711, which is granted by the present applicant, and is basically manufactured by using a material having at least three stone paper layers, because the stone paper is basically manufactured by using a material in which an inorganic filler (for example, calcium carbonate CaCO3) and a plastic are mixed, the conventional wood pulp paper is not used at all, the consumption of tree resources in the conventional paper industry can be reduced, and the plastic contained in the stone paper can be biodegradable organic plastic (for example, aliphatic or semi-aromatic polyester such as PLA, PBS, PBAT, etc.), and has a natural degradation effect, and can be recycled and reproduced, thereby completely conforming to the concept of environmental protection. Although the stone paper container structure is made of stone paper which accords with the concept of environmental protection, the technical problem that a beverage bottle cannot be made of plastic directly replaced by the structural strength of pure stone paper is solved, and the stone paper container is mainly used for replacing the traditional paper cup.

Based on the characteristic that stone paper accords with the environmental protection concept, the inventor provides a paper-based composite structure of a beverage bottle through years of practical experience and technology, overcomes the technical problem that stone paper can not directly replace plastics to manufacture beverage bottles, and solves the environmental protection problem caused by traditional plastic bottles and paper containers.

In granted chinese utility model patent publication No. CN207210842U, a stone paper for making containers is proposed, the stone paper comprising: the rich mineral paper base paper layer, the printing coating and the laminating layer; the printing coating is coated on one surface of the rich mineral paper base paper layer, and the laminating layer is laminated on the other surface of the rich mineral paper base paper layer; the hot melting temperature of the rich mineral paper base paper layer is higher than that of the laminating layer; preferably, the laminating material of the laminating layer is polylactic acid; the invention can realize effective recycling of the container and reduce the use cost. The new technology mentioned above proposes a structure in which the stone paper used for making the container has only one layer, and therefore the structural strength of the container made is limited.

Disclosure of Invention

In order to overcome the technical problem that stone paper can not directly replace plastics to manufacture beverage bottles and solve the environmental protection problem caused by traditional plastic bottles and paper containers, the invention provides a paper-based composite structure of the beverage bottle, which is completely made of biodegradable environment-friendly materials, can solve the technical problem that stone paper is difficult to be directly applied to the production of beverage containers, and simultaneously ensures the structural strength required by the beverage containers manufactured by the stone paper.

Based on solving the technical problems, the technical scheme of the paper-based composite structure of the beverage bottle comprises the following steps:

the bottle cap is a tubular structure with one end sealed and the other end opened as a bottle cap opening, and the inner side wall surface of the bottle cap is provided with screw teeth;

the bottle neck comprises a tubular body and an upper section of bottle body, wherein the upper section of bottle body is made of stone paper, a first opening and a second opening are respectively arranged at two ends of the upper section of bottle body, the aperture of the first opening is smaller than that of the second opening, the first opening is tightly connected with the tubular body, an annular rib part protruding outwards is arranged on the outer side of the tubular body, a screw tooth is arranged on the outer side of the tubular body above the rib part and can be in butt joint with a bottle cap for screwing, a connecting surface is arranged around the first opening, and the rib part of the tubular body can be tightly connected with the connecting surface;

the 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 at least comprise 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 mode, the first layer of paper, the second layer of paper and the third layer of paper are mutually bonded into an at least three-layer tubular structure serving as the bottle body in a staggered and overlapped mode, the top end of the bottle body is tightly connected with a second opening of the upper section of the bottle body of the bottle mouth, the first layer of paper serves as the outermost layer of the bottle body, the second layer of paper serves as the middle layer of the bottle body, and the third layer of paper serves as the inner layer of the bottle body; and

And a bottle bottom made of stone paper, closely attached to the bottom end of the bottle body and closing the opening of the bottom end of the bottle body.

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

As a preferred construction of the mouth, said ribs are located at the bottom end of the tubular body, the ribs being tightly connected to the connecting surface by gluing or by means of a high frequency welding process.

As another preferred structure of the bottle mouth, the bottle mouth further comprises a sealing ring and a locking member, the rib of the tubular body is arranged at the middle position of the tubular body, the outer side of the lower half section of the tubular body is provided with threads, the locking member is an annular member which is provided with threads at the inner diameter, and the lower half section of the tubular body is tightly connected with the locking member through the threads of the lower half section of the tubular body after sequentially passing through the sealing ring and the first opening of the upper section of the bottle body.

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

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

As another preferable structure of the bottle body, the bottle body is made of four layers of stone paper-based composite paper, wherein the fourth layer is aluminum foil paper, and the aluminum foil paper is used as the inner side surface or the outer side surface 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 and comprises the following components: the paper comprises a first layer of paper, a second layer of paper, a 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 and the fourth layer of paper can be recycled paper, and the recycled paper can be recycled stone paper or traditional wood pulp paper.

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

The bottle bottom comprises a bottom surface and a side wall surrounding the periphery of the bottom surface, and the side wall of the bottle bottom is tightly connected with the inner side wall of the bottle body.

Wherein the side wall of the bottle bottom is tightly connected with the inner side wall of the bottle body by gluing or high frequency welding process.

As another preferred structure of the body, the body further has a neck portion at a position near the top end.

As another preferred structure of the body, the lower half of the body is further provided with a shaping part protruding outwards or sinking inwards.

The paper-based composite structure of the beverage bottle has the beneficial effects that the paper-based composite structure is completely made of biodegradable environment-friendly materials, the bottle body is a tubular spiral structure made of stone paper-based composite paper, the sufficient structural strength is ensured, a necking part can be formed on the bottle body or a required modeling design can be generated by combining the characteristics of water resistance, plasticity and the like of the stone paper, and the paper-based composite structure has the beneficial effects of easiness in processing and manufacturing and capability of improving the visual aesthetic feeling of the bottle body.

Other features and embodiments of the present invention will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of the construction of one embodiment of the paper-based composite structure of the beverage bottle of the present invention;

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

FIG. 3 is a schematic partial construction of the paper-based composite structure of the beverage bottle of the present invention, showing the structure of the at least three layers of stone paper-based composite paper used to make the body of the bottle;

FIG. 4 is a partial structural view of the paper-based composite structure of the beverage bottle according to the present invention, showing a sectional structure of the bottle body made of at least three layers of stone paper-based composite paper;

FIG. 5 is a constructional exploded view of another embodiment of the paper-based composite structure of the beverage bottle of the present invention;

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

FIG. 7 is a cross-sectional view of another embodiment of the paper-based composite structure of the beverage bottle of the present invention;

FIG. 8 is a configurational appearance of one embodiment of the paper-based composite structure of the beverage bottle of the present invention;

FIG. 9 is a configurational appearance of another embodiment of the paper-based composite structure of the beverage bottle of the present invention;

FIG. 10 is a partial structural view of the paper-based composite structure of the beverage bottle of the present invention, showing a sectional structure of the bottle body made of four layers of stone-headed paper-based composite paper;

Fig. 11 and 12 are partial structural views of the paper-based composite structure of the beverage bottle according to the present invention, showing a cross-sectional structure of a bottle body made of five layers of stone paper-based composite paper.

Description of the symbols

10 bottle cap 11 screw thread

20 bottle mouth 21 tubular body

22 upper segment bottle body 221 first opening

222 second opening 223 connection face

23. 23A Rib 24, 27 thread

25 sealing ring 26 locking piece

30 a bottle body 32 necking part

33 model part 40 bottle bottom

41 bottom surface 42 side wall

50 first ply 50A first surface of the first ply

Second surface of 50B first sheet 60 second sheet

60A first surface of the second sheet 60B second surface of the second sheet

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

80 fourth layer paper and 90 fifth layer paper

L long edge P rich mineral paper base composite paper

S short side

Detailed Description

The positional relationship described in the following embodiments includes: the top, bottom, left and right, unless otherwise indicated, are based on the orientation of the elements in the drawings.

Referring first to fig. 1 and 2, there are shown exploded and cross-sectional views of one embodiment of the paper-based composite structure for a beverage bottle of the present invention.

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

Wherein the cap 10 is basically a screw cap, the cap 10 is a tubular structure having one end sealed and the other end opened as a cap mouth, the inner sidewall of the cap 10 has screw threads 11, and a preferred embodiment of the cap 10 is made of biodegradable plastic material such as, but not limited to, PLA.

The bottle mouth 20 comprises a tubular body 21 and an upper section of bottle body 22, a first opening 221 and a second opening 222 are respectively arranged at two ends of the upper section of bottle body 22, the preferable structure of the upper section of bottle body 22 is a conical tube (or funnel shape) or a slightly flat dish shape, wherein the aperture of the first opening 221 is smaller than that of the second opening 222, the upper section of bottle body 22 is made of stone paper, the plasticity of the stone paper is utilized, the bottle mouth can be manufactured through a heating molding process, and the bottle mouth has the advantage of easy manufacturing; the first opening 221 is tightly connected to the tubular body 21, the preferred embodiment of the tubular body 21 is made of biodegradable plastic material (such as but not limited to PLA), the outer side of the bottom end of the tubular body 21 has an annular rib 23 protruding outwards, the outer side of the tubular body 21 has a screw thread 24 above the rib 23 for butt-fastening with the bottle cap 10, the first opening 221 of the upper body 22 has a connection surface 223 around it, and the rib 23 of the tubular body 21 can be tightly connected with the connection surface 223, for example, by using an adhesive or high frequency welding process, so as to achieve the effect of tight connection, and further achieve the effect of preventing the leakage of beverage or liquid (see fig. 2).

Referring to fig. 5 and 6, as another preferred embodiment of the bottle mouth 20, it comprises a tubular body 21, a sealing ring 25, a locking member 26 and an upper body 22, and the difference between the above-mentioned embodiments shown in fig. 1 and 2 is that the rib 23A of the embodiment shown in fig. 3 is disposed at the middle position of the tubular body 21, the outer side of the lower half of the tubular body 21 has threads 27, and the locking member 26 is basically a ring-shaped member having threads on its inner diameter, in other words, the preferred embodiment of the locking member 26 is a screw cap, and after the lower half of the tubular body 21 sequentially passes through the sealing ring 25 and the first opening 221 of the upper body 22, the lower half of the tubular body 21 is tightly connected together by the threads 27 and the locking member 26 of the lower half of the tubular body 21 (see fig. 6), thereby providing a bottle mouth 20 with excellent structural strength, and ensuring that the joint of the first opening 221 of the tubular body 21 and the upper body 22 has a sealing effect of no leakage .

The bottle body 30 is basically a tubular spiral structure made of rich mineral paper-based composite paper P (see fig. 3 and 4), which ensures sufficient structural strength, and the top end of the bottle body 30 is tightly connected to the second opening 222 of the upper bottle body 22 of the mouth 20, for example, by using an adhesive or a high frequency welding process, so as to achieve the effect of tight connection, and further achieve the effect of preventing the leakage of the beverage or liquid.

Wherein the bottle bottom 40 is made of stone paper, the bottle bottom 40 is tightly attached to the bottom end of the bottle body 30 and closes the opening of the bottom end of the bottle body 30; a preferred embodiment of the bottle bottom 40 is a cup-shaped structure made of stone paper, the bottle bottom 40 includes a bottom surface 41 and a sidewall 42 surrounding the periphery of the bottom surface 41, the sidewall 42 of the bottle bottom 40 is tightly connected to the inner sidewall of the bottle body 30, such as by gluing or high frequency welding, to prevent the leakage of beverage or liquid.

A preferred embodiment of the body 30 is a tubular spiral structure made of a rich mineral paper-based composite paper P having at least three-layered structure, which is illustrated in fig. 3 and includes at least: the bottle body is made of a first layer of paper 50, a second layer of paper 60 and a third layer of paper 70, wherein the first layer of paper 50, the second layer of paper 60 and the third layer of paper 70 are all made of strip-shaped paper strips, the lengths of the short sides S of the strip-shaped paper strips are the same, and the lengths of the long sides L of the strip-shaped paper strips are not limited but at least enough to be wound to form the bottle body; the first, second and third sheets 50, 60 and 70 each have opposing first and second surfaces (for ease of reference to the reference numerals for each sheet, the letter A represents the first surface and the letter B represents the second surface, e.g., 50A represents the first surface of the first sheet 50, 60B represents the second surface of the second sheet 60, and so on), and the long sides L of the first, second and third sheets 50, 60 and 70 are stacked on top of one another in a shingled manner (see FIG. 3) and are adhered to one another in portions that occupy the width of the short sides of 1/2. 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 in a shingled manner, namely, the second half of the second surface 50B of the first layer of paper 50, which occupies the width of the 1/2 short side of the first layer of paper 50, is adhered to the first half of the first surface 60A of the second layer of paper 60, which occupies the width of the 1/2 short side of the second layer of paper 60, and the second half of the second surface 60B of the second layer of paper 60, which occupies the width of the 1/2 short side of the second layer of paper 60, is adhered to the first half of the first surface 70A of the third layer of paper 70, which occupies the width of the 1/2 short side of the third layer of paper 70.

A preferred embodiment of the rich mineral paper-based composite paper P having at least three layers, wherein the first layer 50 and the third layer 70 are rich mineral paper, and the second layer 60 is recycled paper, and the recycled paper can be recycled rich mineral paper or conventional wood pulp paper, especially conventional wood pulp paper is used as the second layer 60, further providing better support and ensuring sufficient structural strength; another preferred embodiment of the rich mineral paper-based composite paper having at least three layers structure, wherein the first layer 50, the second layer 60 and the third layer 70 are rich mineral papers (including newly manufactured rich mineral papers or recycled rich mineral papers).

The rich mineral paper-based composite paper P is spirally wound, 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 in a staggered and overlapped manner to form a tubular structure with at least three layers as the bottle body 30, the top end of the bottle body 30 is tightly connected with the second opening 222 of the upper section of the bottle body 22 of the bottle mouth 20, wherein the first layer of paper 50 becomes the outermost layer of the bottle body 30, the second layer of paper 60 becomes the middle layer of the bottle body 30, and the third layer of paper 70 becomes the inner layer of the bottle body 30. Referring to fig. 4, the stone paper-based composite paper P is wound in such a manner that, from the end point of the first turn of the stone paper-based composite paper P and the subsequent winding portion, the first half of the second surface 50B of the first paper 50, which occupies the 1/2 short side width of the first paper 50, is adhered to the second half of the first surface 60A of the second paper 60, which occupies the 1/2 short side width of the second paper 60, and the first half of the second surface 60B of the second paper 60, which occupies the 1/2 short side width of the second paper 60, is adhered to the second half of the first surface 70A of the third paper 70, which occupies the 1/2 short side width of the third paper 70. The bottle body 30 with the at least three-layer structure, which is manufactured in the mode of spiral winding and staggered overlapping, has no gap, leakage cannot occur due to the waterproof characteristic of stone paper, and the bottle body 30 with the at least three-layer structure can also ensure enough structural strength.

Although the above embodiment discloses the rich rock paper-based composite paper P having a three-layer structure, the three layers are not limited, and the bottle body 30 can be manufactured by using the rich rock paper-based composite paper P made of the paper-based materials of the 4 th layer and more, which include completely new rich rock paper, recycled rich rock paper or conventional wood pulp paper, in the same manner. The cross-sectional structure of the bottle body 30 made of the rich mineral paper-based composite paper P having a multi-layer structure is disclosed below in conjunction with an exemplary drawing.

Fig. 7 shows a rich mineral paper-based composite paper P having a 4-layer structure, comprising: 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, wherein the fourth layer of paper 80 is aluminum foil paper as the inner side of the bottle body 30, which can provide the function of blocking ultraviolet rays, wherein the first layer of paper 50 and the third layer of paper 70 are stone paper, and the second layer of paper 60 can be recycled stone paper or conventional wood pulp paper. Fig. 10 shows another rich mineral paper-based composite paper P also having a 4-layer structure, comprising: the first layer of paper 50, the second layer of paper 60, the third layer of paper 70 and the fourth layer of paper 80 are different from those in fig. 7 in that the fourth layer of paper 80 is aluminum foil paper as the outer side of the bottle body 30, and can provide the function of blocking ultraviolet rays.

Fig. 11 shows a rich mineral 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 method is a thickening and reinforcing mode taking the stone paper-based composite paper P with the three-layer structure as a basic framework, wherein 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 and the fourth layer of paper 80 can be recycled paper, and the recycled paper can be recycled stone paper or conventional wood pulp paper.

Fig. 12 shows another rich mineral 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 can be recycled paper, the recycled paper can be recycled stone paper or traditional wood pulp paper, and the fourth layer of paper 80 is aluminum foil paper.

Because the stone paper contains thermoplastic/resin and is waterproof, the process of winding the stone paper-based composite paper P to manufacture the bottle body 30 can realize the mutual bonding and waterproof effects of the multiple layers of paper through high-frequency hot melting or a rolling heating process; in other preferred embodiments, adhesive films can be coated on both sides of the stone paper, and the bonding effect of the multiple layers of paper can be further enhanced by high-frequency hot melting or rolling heating.

As a preferred embodiment of the paper-based composite structure for the beverage bottle of the present invention, in which the body 30 further has a necked portion 32 (see fig. 8) near the top end, the body 30 can be improved in structural strength and easy to hold by a user, and the necked portion 32 can be formed by a heated rolling process and then cooled to fix its shape based on the characteristic of the stone paper having good plasticity; in other preferred embodiments, the lower portion of the body 30 further has outwardly protruding or inwardly recessed features 33 (see fig. 9), such as annular ribs or annular depressions, to enhance the visual aesthetics of the body 30 and to create the desired styling.

The paper-based composite structure of the beverage bottle is completely made of biodegradable environment-friendly materials, the bottle body is a tubular spiral structure made of stone paper-based composite paper, sufficient structural strength is guaranteed, a necking part can be formed on the bottle body or a required modeling design can be generated by combining the characteristics of water resistance, plasticity and the like of the stone paper, and the paper-based composite structure has the advantages of being easy to process and manufacture and capable of improving the visual aesthetic feeling of the bottle body.

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the present technology, and are not intended to limit the implementations of the present technology in any way, and those skilled in the art may make modifications or changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the present disclosure, but should be construed as the technology or implementations substantially the same as the present technology.

Claims

1. A paper-based composite structure for a beverage bottle, comprising:

the bottle neck comprises a tubular body and an upper section bottle body, wherein the upper section bottle body is made of stone paper, a first opening and a second opening are respectively arranged at two ends of the upper section bottle body, the aperture of the first opening is smaller than that of the second opening, the first opening is tightly connected with the tubular body, an annular rib part protruding outwards is arranged on the outer side of the tubular body, a screw tooth is arranged on the outer side of the tubular body above the rib part and can be in butt joint and screwed with the bottle cap, a connecting surface is arranged around the first opening, and the rib part of the tubular body can be tightly connected with the connecting surface;

The 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 at least comprise 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 mode, the first layer of paper, the second layer of paper and the third layer of paper are bonded into an at least three-layer tubular structure in a staggered and overlapped mode to serve as the bottle body, the top end of the bottle body is tightly connected with the second opening of the upper section of the bottle body of the bottle neck, the first layer of paper serves as the outermost layer of the bottle body, the second layer of paper serves as the middle layer of the bottle body, and the third layer of paper serves as the inner layer of the bottle body; and

and the bottle bottom is made of stone paper and is tightly connected to the bottom end of the bottle body and closes the opening at the bottom end of the bottle body.

2. The paper-based composite structure for a beverage bottle according to claim 1, wherein the bottle cap and the tubular body of the bottle body are made of biodegradable plastic materials.

3. A paper-based composite structure for a beverage bottle according to claim 1, wherein the rib is located at the bottom end of the tubular body, the rib being tightly joined to the joint face by an adhesive or a high frequency welding process.

4. The paper-based composite structure for a beverage bottle according to claim 1, wherein the mouth further comprises a sealing ring and a locking member, the rib of the tubular body is provided at a middle position of the tubular body, the outer side of the lower half of the tubular body has threads, the locking member is an annular member having threads on its inner diameter, and the lower half of the tubular body is tightly coupled to the locking member by the threads of the lower half of the tubular body after sequentially passing through the sealing ring and the first opening of the upper body.

5. The paper-based composite structure for a beverage bottle according to claim 1, wherein the first and third layers of paper are stone paper, and the second layer of paper is recycled stone paper or conventional wood pulp paper.

6. The paper-based composite structure for a beverage bottle of claim 1, wherein the first layer of paper, the second layer of paper, and the third layer of threads are stone paper.

7. The paper-based composite structure for a beverage bottle according to claim 1, wherein the body is made of four layers of the stone paper-based composite paper, comprising: the first layer of paper, the second layer of paper, the third layer of paper and a fourth layer of paper are aluminum foil paper, and the aluminum foil paper is used as the inner side face or the outer side face of the bottle body.

8. The paper-based composite structure for beverage bottle according to claim 1, wherein the body is made of five layers of the stone paper-based composite paper, 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 and the fourth layer of paper are recycled paper, and the recycled paper is recycled stone paper or traditional wood pulp paper.

9. The paper-based composite structure for beverage bottle according to claim 1, wherein the bottle body is made of five layers of the stone paper-based composite paper, 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, the recycled paper is recycled stone paper or traditional wood pulp paper, and the fourth layer of paper is aluminum foil paper.

10. The paper-based composite structure for a beverage bottle according to claim 1, wherein the bottom comprises a bottom surface and a sidewall surrounding the periphery of the bottom surface, the sidewall of the bottom being tightly connected to the inner sidewall of the body.

11. The paper-based composite structure for a beverage bottle according to claim 10, wherein the sidewall of the bottom is tightly attached to the inner sidewall of the body using an adhesive or a high frequency welding process.

12. The paper-based composite structure for a beverage bottle according to claim 1, wherein the body further has a necked-down portion near the top end.

13. The paper-based composite structure for a beverage bottle according to claim 1, wherein the lower half of the body is further provided with a shape protruding outward or sinking inward.