Completely recyclable container

Abstract

The utility model provides a container capable of being completely recycled, which structurally comprises a bottle cap, a bottle shoulder, a bottle body and a bottle bottom which are respectively made of environment-friendly and recyclable different materials and then are combined into the container capable of being completely recycled. Wherein the bottle body is made of a spiral paper tube, the spiral paper tube forms discontinuous internal threads close to the top end and the bottom end of the bottle body respectively through the synergistic effect of an inner mold and an outer mold which are specially designed, and then a continuous and complete thread structure is formed when the bottle body is combined with the corresponding external threads of the bottle shoulder and the bottle bottom respectively. The purpose of completely recycling the container can be achieved, the problem that in the prior art, the procedure of forming threads on a paper pulp product is complex and difficult is solved, and on the other hand, the problem that the structural strength of the connecting position of a component made of different materials and a paper bottle body of the container is insufficient can be solved.

Description

Technical Field

[0001] The present application relates to the construction of an environmentally friendly container, and in particular to a fully recyclable container. Background Art

[0002] In order to solve the environmental problems caused by plastic bottles, containers made of environmentally friendly materials that can be naturally degraded have been proposed and put into mass production. The applicant proposed a liquid container made of all-natural plant materials in the approved invention patent of Taiwan, China (certificate number I766398), including: a bottle cap, an upper bottle body, a bottle body and a bottle bottom. This liquid container made of all-natural plant materials has excellent structural strength, can better withstand radial / lateral pressure, can achieve the goal of natural decomposition or biodegradation, and solve the environmental problems caused by traditional plastic PET bottles. However, the upper bottle body and the bottle body are connected together by a buckling structure, and the buckling structure includes: an inner flange at the top of the bottle body, and a groove at the outer side of the upper bottle body corresponding to the position of the inner flange, and the bottle body is connected together by buckling the inner flange with the groove of the upper bottle body. For some containers with higher structural strength requirements, the structural strength of the above-mentioned buckling structure is still not as good as the existing structure using threaded connection.

[0003] In the Chinese invention patent application that has been published (application publication number CN 115341415A), a one-piece paper mold internal and external spiral pattern forming process is disclosed, including: making a wet pulp embryo and placing the wet pulp embryo at the station of the hot pressing mold; positioning the wet pulp embryo at the station by the lower mold core of the hot pressing mold; squeezing the inner and outer sides of the wet pulp embryo by the upper mold core and the lower mold core of the hot pressing mold to form a spiral pattern; the upper mold core and the lower mold core are respectively provided with a first spiral structure and a second spiral structure for forming the spiral pattern. The process can hot press mold an integrated paper bottle cap with an internal spiral pattern and a paper bottle mouth with an external spiral pattern and integrally formed with a paper bottle container, replacing the process of bonding the paper bottle container with a plastic bottle mouth, and achieving the purpose of not using plastic.

[0004] In addition, a Chinese invention patent application that has been published (application publication number CN117536025A) proposes a method for producing a paper-plastic container and a paper-plastic container. The method for producing a paper-plastic container includes: a wet blank molding process to obtain a paper-plastic wet blank; a wet blank processing process to attach a barrier material to the paper-plastic wet blank through a slurry absorption process to obtain a barrier wet blank; and a paper-plastic molding process to make the barrier wet blank into a paper-plastic container. The paper-plastic molding process includes transferring the barrier wet blank from a wet blank processing mold (which uses the wet blank molding mold as a wet blank processing mold) to a thermoforming mold, and the barrier wet blank is subjected to a molding process to obtain a paper-plastic container.

[0005] When the paper-plastic container is a paper bottle, a bottle mouth shaping component can be added to the port position of the thermoforming mold when the thermoforming mold is engaged. The bottle mouth shaping component can be used to shape the bottle mouth of the wet blank so that the paper bottle has a desired shape. The bottle mouth shaping component can be threaded or in other desired shapes.

[0006] In the above-mentioned disclosed patent technologies, basically, the paper pulp is first injected into the wet blank forming mold to form the paper plastic wet blank, and then the wet pulp blank is transferred to the thermoforming mold or the hot pressing mold to complete the product forming. It can be understood that compared with the existing plastic products that directly use injection molding technology to form threads, the technology of forming threads on paper tubes or pulp products is obviously more complicated and difficult. Utility Model Content

[0007] The technical problem to be solved by the present application is to provide a fully recyclable container, which can achieve the goal of complete recycling or natural degradation of the container, solve the problem of complex and difficult process of forming threads in pulp products in the prior art, and on the other hand, solve the problem of insufficient strength of the connection structure between the heterogeneous material components of the container and the paper bottle.

[0008] To achieve the above objectives, the present application proposes a fully recyclable container, comprising the following steps:

[0009] Use spiral paper tube to make a bottle body, including:

[0010] An inner mold is prepared, the inner mold comprising a first component and a second component, the first component and the second component are semi-cylindrical components and their axes are parallel to each other, the outer arc-shaped surfaces of the first component and the second component respectively have a first convex pattern and a second convex pattern, the first component and the second component can be close to each other to a first position along their radial direction, and can be separated from each other to a second position, the inner mold can be placed in the spiral paper tube in the first position, the first convex pattern and the second convex pattern can be respectively pressed and pushed into the inner wall of the spiral paper tube in the second position, and the first convex pattern and the second convex pattern are along the same spiral line to form an external thread in the second position;

[0011] Prepare an outer mold, and then place the spiral paper tube into the outer mold, the outer mold is a round tube and can accommodate the spiral paper tube;

[0012] Move the first component and the second component to a first position, and place the inner mold into the spiral paper tube;

[0013] The first component and the second component are moved to the second position, and the inner wall of the spiral paper tube is squeezed by the first convex pattern and the second convex pattern to form a discontinuous first internal thread near the top end of the bottle body, the first internal thread includes a first discontinuous portion that is not compressed, and a discontinuous second internal thread is formed near the bottom end of the bottle body, the second internal thread includes a second discontinuous portion that is not compressed;

[0014] Move the first component and the second component to a first position, move the inner mold out of the spiral paper tube, and then move the spiral paper tube out of the outer mold;

[0015] A bottle cap, a bottle shoulder and a bottle bottom are made of biodegradable plastic by injection molding technology, the top of the bottle shoulder has a bottle mouth that can be connected to the bottle cap, the outer side of the bottle shoulder near the bottom end has a first external thread that can match the first internal thread, the bottle bottom includes a bottom surface and a side wall surrounding the bottom surface, and the outer side of the side wall has a second external thread that can match the second internal thread;

[0016] Assemble the bottle shoulder and the bottle body, and use the first external thread to squeeze the first discontinuous portion, so that the first discontinuous portion is recessed and deformed, so that the first internal thread forms a continuous and complete internal thread, and the bottle shoulder and the bottle body are screwed together through the continuous and complete internal thread; and

[0017] The bottle bottom and the bottle body are combined, and the second discontinuous part is squeezed by the second external thread, so that the second discontinuous part is concave and deformed, so that the discontinuous second internal thread forms a continuous and complete internal thread, and the bottle bottom and the bottle body are screwed together through the continuous and complete internal thread.

[0018] Preferably, the inner diameter of the outer mold is the outer diameter of the spiral paper tube.

[0019] A preferred embodiment of the fully recyclable container of the present application includes: using at least two layers of waterproof paper to wind a spiral paper tube with a two-layer structure.

[0020] A preferred embodiment of the fully recyclable container of the present application includes: using three layers of waterproof paper to wind and make a spiral paper tube with a three-layer structure, and the fiber directions of the three layers of waterproof paper are staggered and overlapped with each other.

[0021] As a preferred embodiment of the fully recyclable container of the present application, the steps of forming a discontinuous first internal thread and a discontinuous second internal thread include:

[0022] The first component and the second component are moved to the second position, and the inner mold is moved to the top of the bottle body, and the inner wall of the spiral paper tube is squeezed by the first convex pattern and the second convex pattern to form a discontinuous first internal thread near the top of the bottle body, wherein the first internal thread includes a first discontinuous portion that is not compressed;

[0023] Move the first component and the second component to a first position, move the inner mold out of the spiral paper tube, and then flip the outer mold and the spiral paper tube 180 degrees so that the bottom end of the spiral paper tube as the bottle body is aligned with the inner mold; and

[0024] The first component and the second component are moved to a second position, and the inner mold is moved to a position close to the bottom end of the bottle body, and the inner wall of the spiral paper tube is squeezed by the first convex pattern and the second convex pattern to form a discontinuous second inner thread near the bottom end of the bottle body, wherein the second inner thread includes a second discontinuous portion that is not compressed.

[0025] One aspect of the present application also provides a fully recyclable container, comprising:

[0026] A bottle cap, a bottle shoulder, a bottle body, and a bottle bottom, wherein the bottle cap, the bottle shoulder, and the bottle bottom are made of biodegradable plastic by injection molding technology; the bottle body is made of a spiral paper tube, and has a discontinuous first internal thread near the top of the bottle body, the first internal thread includes a first discontinuous portion that is not compressed; and has a discontinuous second internal thread near the bottom of the bottle body, the second internal thread includes a second discontinuous portion that is not compressed;

[0027] The top of the bottle shoulder has a bottle mouth that can be connected to the bottle cap, and the outer side of the bottle shoulder near the bottom end has a first external thread that can match the discontinuous first internal thread. The bottle shoulder and the bottle body are detachably combined together through the first external thread and the discontinuous first internal thread. The first external thread squeezes the first discontinuous part, causing the first discontinuous part to be concave and deformed, so that the discontinuous first internal thread forms a continuous and complete internal thread, and the bottle shoulder and the bottle body are screwed together through the continuous and complete internal thread.

[0028] The bottle bottom includes a bottom surface and a side wall surrounding the bottom surface, the outer side of the side wall has a second external thread that can match the discontinuous second internal thread, the bottle bottom and the bottle body are detachably combined together through the second external thread and the discontinuous second internal thread, the second external thread squeezes the second discontinuous part, causing the second discontinuous part to be concave and deformed, so that the discontinuous second internal thread forms a continuous and complete internal thread, and the bottle bottom and the bottle body are screwed together through the continuous and complete internal thread.

[0029] As a preferred embodiment of the fully recyclable container of the present application, the bottle shoulder includes a left bottle shoulder and a right bottle shoulder that can be combined with each other, the side wall edge of the left bottle shoulder has a left tenon extending toward the right bottle shoulder, and the left tenon can be engaged with a right groove corresponding to the side wall of the right bottle shoulder, and the side wall edge of the right bottle shoulder has a right tenon extending toward the left bottle shoulder, and the right tenon can be engaged with a left groove corresponding to the side wall of the left bottle shoulder.

[0030] As a preferred embodiment of the fully recyclable container of the present application, the spiral paper tube is made by winding at least two layers of waterproof paper to have a two-layer structure.

[0031] As a preferred embodiment of the fully recyclable container of the present application, the spiral paper tube is made by winding three layers of waterproof paper to have a three-layer structure, and the fiber directions of the three layers of waterproof paper are staggered and overlapped with each other.

[0032] As a preferred embodiment of the fully recyclable container of the present application, the bottle shoulder and the bottle bottom are made of polybutylene succinate (PBS) through injection molding technology.

[0033] As a preferred embodiment of the fully recyclable container of the present application, the spiral paper tube is made by winding waterproof paper with a polybutylene succinate (PBS) coating on the inner side.

[0034] The advantages and effects of the fully recyclable container of the present application are: compared with the method of using wet pulp embryos and molds to form threads on paper components in the known patented technology, the manufacturing process of the method of the present application is obviously faster and more streamlined; on the other hand, the bottle cap, bottle shoulder, bottle body and bottle bottom that constitute the fully recyclable container of the present application are respectively made of environmentally friendly and recyclable foreign materials, especially the bottle body made of spiral paper tubes, wherein the spiral paper tubes can be connected to the bottle shoulder and the bottle bottom through the threads formed on the inner wall thereof, thereby obtaining better structural strength.

[0035] The details of other effects and embodiments of the present application are described below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a schematic diagram of the structure of an embodiment of the fully recyclable container of the present application;

[0038] Figure 2 yes Figure 1 An exploded view of the structure of an embodiment of the present invention;

[0039] Figure 3 yes Figure 2 The cross-sectional structural diagram at position AA;

[0040] Figures 4 to 13 It is a schematic diagram of a continuous implementation method of using spiral paper tubes to make bottle bodies.

[0041] Explanation of symbols

[0042] 10: Bottle cap 11: Bottle cap thread

[0043] 20: Bottle shoulder 20L: Left bottle shoulder

[0044] 20R: Right bottle shoulder 21: Bottle mouth

[0045] 22: First external thread 23: Bottle mouth thread

[0046] 26L: Left card slot 27R: Right card slot

[0047] 26R: Right card vertebra 27L: Left card slot

[0048] 30: Bottle body 31: First internal thread

[0049] 310: first discontinuous portion 320: second discontinuous portion

[0050] 32: Second internal thread 40: Bottle bottom

[0051] 41: Bottom 42: Side wall

[0052] 43: Second external thread 50: Inner mold

[0053] 51: First component 52: Second component

[0054] 511: first convex pattern 521: second convex pattern

[0055] 60: Outer mold D1: Inner diameter of the outer mold

[0056] D2: outer diameter of spiral paper tube L: spiral line DETAILED DESCRIPTION

[0057] The positional relationships described in the following embodiments include: up, down, left and right. Unless otherwise specified, they are all based on the directions in which the components are drawn in the drawings.

[0058] First see Figures 1 to 3 , depicting a schematic diagram of the structure of an embodiment of the fully recyclable container of the present application, and its exploded diagram. An embodiment of the fully recyclable container of the present application comprises: a bottle cap 10, a bottle shoulder 20, a bottle body 30 and a bottle bottom 40.

[0059] In a preferred embodiment, the bottle cap 10, the bottle shoulder 20 and the bottle bottom 40 are made of polybutylene succinate (PBS) by injection molding technology; the spiral paper tube that makes up the bottle body 30 is made by winding waterproof paper with a polybutylene succinate (PBS) coating on the inner side (in the present application specification and drawings, unless otherwise specified, the bottle body 30 can also be regarded as a spiral paper tube). The waterproof paper can be made of natural plant materials (such as pure pulp) and then PBS coating is made on one side to achieve the goal of recyclability.

[0060] The top of the bottle shoulder 20 has a bottle mouth 21 that can be connected to the bottle cap 10. Figure 2As shown, the bottle shoulder 20 has a bottle mouth thread 23 near the bottle mouth 21 , and the inner side of the bottle cap 10 has a bottle cap thread 11 . The bottle cap 10 can be detachably screwed together through the bottle cap thread 11 and the bottle mouth thread 23 of the bottle shoulder 20 .

[0061] The bottom end of the bottle shoulder 20 is screwed together with the top end of the bottle body 30 through a threaded structure, and in particular, the bottle shoulder 20 and the bottle body 30 can be detachably connected together through the threaded structure. The bottle bottom 40 includes a bottom surface 41 and a side wall 42 surrounding the bottom surface 41, and the outer side of the side wall 42 is also screwed together with the bottom end of the bottle body 30 through a threaded structure, and in particular, the bottle bottom 40 and the bottle body 30 can be detachably connected together through the threaded structure; the preferred embodiment of the above-mentioned threaded structure will be described below.

[0062] As a preferred embodiment of the fully recyclable device of the present application, the bottle shoulder 20 includes a left bottle shoulder 20L and a right bottle shoulder 20R which can be combined with each other. The left bottle shoulder 20L and the right bottle shoulder 20R can be respectively manufactured by injection molding technology. The side wall edge of the left bottle shoulder 20L has a left clamping cone 26L extending toward the right bottle shoulder 20R, and the left clamping cone 26L can be engaged with a right clamping groove 27R corresponding to the side wall of the right bottle shoulder 20R. The side wall edge of the right bottle shoulder 20R has a right clamping cone 26R extending toward the left bottle shoulder 20L, and the right clamping cone 26R can be engaged with a left clamping groove 27L corresponding to the side wall of the left bottle shoulder 20L; this structure of the bottle shoulder 20 composed of the left bottle shoulder 20L and the right bottle shoulder 20R can disassemble the bottle shoulder 20 during the recycling operation, making it easier to achieve the goal of complete disassembly and recycling of each component.

[0063] As a preferred embodiment of the present application, a spiral paper tube is made by winding at least two layers of waterproof paper, and more preferably, a spiral paper tube with a three-layer structure is made by winding three layers of waterproof paper, and the fiber directions of the three layers of waterproof paper are staggered and overlapped with each other. The bottle body 30 made of the spiral paper tube has a better resistance to internal and external pressure than a plastic bottle, and is almost as strong as a glass bottle or even stronger.

[0064] A preferred embodiment of the fully recyclable container of the present application comprises the following steps:

[0065] S1. Use spiral paper tube to make bottle body 30;

[0066] S2. The bottle cap 10, the bottle shoulder 20 and the bottle bottom 40 are made by injection molding technology using biodegradable plastics;

[0067] S3. The bottle shoulder 20 and the bottle body 30 are combined; and

[0068] S4. Assemble the bottle bottom 40 and the bottle body 30.

[0069] Step S1. A preferred embodiment of using a spiral paper tube to make the bottle body 30, please refer to Figures 4 to 12 As shown in the figure, a preferred embodiment of the steps of making a bottle body 30 using a spiral paper tube includes:

[0070] S1.1 Prepare a spiral paper tube as the bottle body 30 (see Figure 4 ) and inner mold 50 (see Figure 5 ), the inner mold 50 comprises a first part 51 and a second part 52, the first part 51 and the second part 52 are semi-cylindrical components and their axes are parallel to each other, the outer arc surfaces of the first part 51 and the second part 52 respectively have a first convex 511 and a second convex 521, the first part 51 and the second part 52 can approach each other to a first position along their radial direction, and separate from each other to a second position, in the first position, the inner mold 50 can be placed in the spiral paper tube as the bottle body 30, in the second position, the first convex 511 and the second convex 521 can be respectively pressed and pushed into the inner wall of the spiral paper tube, in the second position, the first convex 511 and the second convex 521 are along the same spiral line L (see Fig. 9 ) to form an external thread;

[0071] S1.2 Prepare an outer mold 60 (see Figure 6 ), and then the spiral paper tube used to make the bottle body 30 is placed into the outer mold 60 (see Figure 7 ), the outer mold 60 is a round tube and can accommodate the spiral paper tube. Preferably, the inner diameter D1 of the outer mold is the outer diameter D2 of the spiral paper tube (see Figure 4 ), in other words, the outer wall of the spiral paper tube contacts the inner wall surface of the outer mold 60;

[0072] S1.3 Move the first component 51 and the second component 52 to the first position, and place the inner mold 50 into the spiral paper tube (see Figure 8 );

[0073] S1.4 Move the first component 51 and the second component 52 to the second position, and use the first convex pattern 511 and the second convex pattern 521 to squeeze the inner wall of the spiral paper tube to form a discontinuous first internal thread 31 near the top of the bottle body 30, the first internal thread includes an unpressed first discontinuous portion 310, and a discontinuous second internal thread 32 near the bottom of the bottle body, the second internal thread includes an unpressed second discontinuous portion 320 (see Figures 10 to 13 );as well as

[0074] S1.5 Move the first component 51 and the second component 52 to the first position, and move the inner mold 50 out of the spiral paper tube (see Fig.12 ), and then the spiral paper tube is moved out of the outer mold 60, and the production process of the bottle body 30 is completed (see Fig.13 ).

[0075] In the aforementioned step S2, the bottle cap 10, bottle shoulder 20 and bottle bottom 40 are manufactured, wherein the inner side of the bottle cap 10 has a bottle cap thread 11, the top of the bottle shoulder 20 has a bottle mouth 21 and a bottle mouth thread 23 which can be connected to the bottle cap 10, the outer side of the bottle shoulder 20 near the bottom end has a first outer thread 22 which can match the discontinuous first inner thread 31, the bottle bottom 40 includes a bottom surface 41 and a side wall 42 surrounding the bottom surface 41, and the outer side of the side wall 42 has a second outer thread 43 which can match the discontinuous second inner thread 32.

[0076] In the aforementioned step S3, in a preferred embodiment of combining the bottle shoulder 20 and the bottle body 30, the first external thread 22 is used to extrude the first discontinuous portion 310, causing the first discontinuous portion 310 to be concavely deformed, so that the discontinuous first internal thread 31 forms a continuous and complete internal thread, so that the bottle shoulder 20 and the bottle body 30 can be screwed together through the continuous and complete internal thread.

[0077] In the aforementioned step S4, in a preferred embodiment of combining the bottle bottom 40 and the bottle body 30, the second discontinuous portion 320 is squeezed by the second external thread 43, causing the second discontinuous portion 320 to be concavely deformed, so that the discontinuous second internal thread 32 forms a continuous and complete internal thread, so that the bottle bottom 40 and the bottle body 30 can be screwed together through the continuous and complete internal thread.

[0078] See also Figures 9 to 11 A preferred embodiment of forming a discontinuous first internal thread 31 and a discontinuous second internal thread 32 on the bottle body 30 includes the following steps:

[0079] The first component 51 and the second component 52 are moved to the second position, and the inner mold 50 is moved to the top of the bottle body 30, and the inner wall of the spiral paper tube is squeezed by the first convex pattern 511 and the second convex pattern 521 to form a discontinuous first internal thread 31 near the top of the bottle body 30. The first internal thread includes a first discontinuous portion 310 (see Fig.10 );

[0080] The first component 51 and the second component 52 are moved to the first position, the inner mold 50 is moved out of the spiral paper tube, and then the outer mold 50 and the spiral paper tube are turned 180 degrees, so that the bottom end of the spiral paper tube as the bottle body 30 is aligned with the inner mold 50 (see Fig.11 );as well as

[0081] The first component 51 and the second component 52 are moved to the second position, and the inner mold 50 is moved to the bottom end of the bottle body 30, and the inner wall of the spiral paper tube is squeezed by the first convex pattern 511 and the second convex pattern 521 to form a discontinuous second inner thread 32 near the bottom end of the bottle body 30, and the second inner thread includes a second discontinuous portion 320 (see Fig.12 ).

[0082] In an exemplary embodiment, the first convex groove 511 and the second convex groove 521 protrude outward from the outer arc surface of the first component 51 and the second component 52 respectively by a protruding height of about 5 mm, but the protruding height depends on the tube wall thickness of the spiral paper tube, so as to form a thread of a desired depth on the inner wall of the spiral paper tube, including a discontinuous first internal thread 31 and a discontinuous second internal thread 32.

[0083] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present application, and are not intended to limit the implementation methods of the technology of the present application in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present application, but they should still be regarded as technologies or embodiments that are essentially the same as the present application.

Claims

1. A fully recyclable container, characterized in that: The fully recyclable container comprises: A bottle cap, a bottle shoulder, a bottle body, and a bottle bottom, wherein the bottle cap, the bottle shoulder, and the bottle bottom are made of biodegradable plastic by injection molding technology; the bottle body is made of a spiral paper tube, and has a discontinuous first internal thread near the top end of the bottle body, the first internal thread includes a first discontinuous portion; and has a discontinuous second internal thread near the bottom end of the bottle body, the second internal thread includes a second discontinuous portion; The top of the bottle shoulder has a bottle mouth that can be connected to the bottle cap, and the outer side of the bottle shoulder near the bottom end has a first external thread that can match the discontinuous first internal thread. The bottle shoulder and the bottle body are detachably combined together through the first external thread and the discontinuous first internal thread. The first external thread squeezes the first discontinuous part, causing the first discontinuous part to be concave and deformed, so that the discontinuous first internal thread forms a continuous and complete internal thread, and the bottle shoulder and the bottle body are screwed together through the continuous and complete internal thread. The bottle bottom includes a bottom surface and a side wall surrounding the bottom surface, the outer side of the side wall has a second external thread that can match the discontinuous second internal thread, the bottle bottom and the bottle body are detachably combined together through the second external thread and the discontinuous second internal thread, the second external thread squeezes the second discontinuous part, causing the second discontinuous part to be concave and deformed, so that the discontinuous second internal thread forms a continuous and complete internal thread, and the bottle bottom and the bottle body are screwed together through the continuous and complete internal thread.

2. The fully recyclable container according to claim 1, characterized in that: The bottle shoulder includes a left bottle shoulder and a right bottle shoulder which can be combined with each other, the side wall edge of the left bottle shoulder has a left tenon extending toward the right bottle shoulder, and the left tenon can be engaged with a right groove corresponding to the side wall of the right bottle shoulder, and the side wall edge of the right bottle shoulder has a right tenon extending toward the left bottle shoulder, and the right tenon can be engaged with a left groove corresponding to the side wall of the left bottle shoulder.

3. The fully recyclable container according to claim 1, characterized in that: The spiral paper tube is made by winding at least two layers of waterproof paper and has a two-layer structure.

4. The fully recyclable container according to claim 1, characterized in that: The spiral paper tube is made by winding three layers of waterproof paper to have a three-layer structure, and the fiber directions of the three layers of waterproof paper are staggered and overlapped with each other.

5. The fully recyclable container according to claim 1, characterized in that: The bottle shoulder and the bottle bottom are made of polybutylene succinate by injection molding technology.

6. The fully recyclable container according to claim 1, characterized in that: The spiral paper tube is made by winding waterproof paper with a polybutylene succinate coating on the inner side.

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