WO2022089453A1

WO2022089453A1 - Liquid-container made of all-natural plant materials

Info

Publication number: WO2022089453A1
Application number: PCT/CN2021/126535
Authority: WO
Inventors: 许喻婷
Original assignee: 许喻婷
Priority date: 2020-11-02
Filing date: 2021-10-27
Publication date: 2022-05-05
Also published as: CN114435715A

Abstract

A liquid container made of all-natural plant materials, the liquid container comprising a bottle cap (10), an upper bottle body section (20), a bottle body (30) and a bottle bottom (40), wherein the bottle cap and the upper bottle body section are made of a mixture mainly composed of plant fibers by means of an injection molding technique; the bottle body is made of a spiral paper tube (60) of a multi-layer structure; the bottle bottom is made of composite paper (P3) of a three-layer structure by means of molding; and a joining section (22) of the upper bottle body section is connected to the top end of the bottle body by means of gluing, the bottom end of the bottle body is also connected to the side wall (42) of the bottle bottom by means of gluing, and a fastening structure is provided at the junction. The liquid container made of natural plant materials has an excellent structural strength, can better bear radial/transverse pressure, and can be used for holding pressurized beverages or liquids, such as soda pop.

Description

All-natural plant-based liquid container

This application claims the priority of the Chinese patent application with the application number 202011202087.2 and the invention title "All-Natural Plant Material Liquid Container" filed with the China Patent Office on November 02, 2020, the entire contents of which are incorporated into this application by reference .

technical field

The present application relates to the structure of a beverage container, especially a liquid container made of all natural plant materials.

Background technique

At present, the most widely used beverage containers on the market are mostly plastic bottles (or PET bottles). The raw materials for traditional plastic bottles are mainly polyethylene terephthalate (PET). and use PET bottles, but PET bottles cannot be degraded naturally, so how to deal with PET bottle garbage has become a major environmental protection issue faced by 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 successively proposed and put into mass production applications. For example, some manufacturers in the United States, the United Kingdom, the Netherlands, Denmark and other countries have proposed paper PET bottles made of all-in-one molding technology. This kind of bottle completely uses paper materials and is made by one-piece molding technology, although it has the advantages of convenient and fast manufacturing. However, the structural strength and compressive strength are insufficient, and it is easy to break from the fragile structure, so it cannot be used as a soda bottle or hold other beverages or liquids with pressure (such as sparkling water).

SUMMARY OF THE INVENTION

The purpose of the present application is to solve the problems of insufficient structural strength and compressive strength of the known paper-based plastic bottles made by integral molding technology, as well as environmental protection problems caused by traditional plastic bottles and paper-made containers.

An example structure of the all-natural plant material liquid container of the present application includes: a bottle cap, an upper bottle body, a bottle body and a bottle bottom; the top of the upper bottle body has a bottle mouth that can be connected with the bottle cap, and the upper bottle body faces The direction of the bottom end extends with a connecting section that can be inserted into the top of the bottle body. The bottle cap and the upper bottle body are made of a mixture of plant fibers and are made by injection molding technology; the bottle body is made of spiral paper with a multi-layer structure. The top of the bottle body and the connecting section of the upper bottle body are glued and connected; the bottom of the bottle is a cup-shaped structure with an opening facing down, the bottom of the bottle includes a bottom surface and a side wall surrounding the bottom surface, and the bottom of the bottle is inserted with the opening facing down. The bottom end of the bottle body, and then the side wall of the bottle body and the bottom of the bottle are combined together by gluing, and the bottom of the bottle is made of a composite paper with a three-layer structure by molding, and the composite paper with a three-layer structure is used. The fibers of different layers are arranged in different directions.

The top of the bottle body of the upper section and the connection of the bottle body have a buckle structure. The position of the inner flange has a groove, the groove surrounds the connecting section, and the inner flange can be fastened to the groove.

Wherein the bottom end of the bottle body and the side wall of the bottle bottom are glued with a fitting groove formed by rolling, and the fitting groove is concave toward the center of the bottle body and surrounds the bottle body.

The vegetable fiber-based mixture includes: natural vegetable fiber powder and vegetable binder.

Wherein the natural plant fiber powder is a plant fiber powder made from bamboo skin, and the plant-based binder comprises any one of natural resin and pine juice.

The advantages and effects of the all-natural plant material liquid container of the present application lie in that it is completely made of natural plant material, and with a specially designed structure, it has excellent structural strength, can better withstand radial/transverse pressure, and can be used to accommodate, for example, Pressurized beverages or liquids such as soda.

The details of other functions and embodiments of the present application are described below in conjunction with the drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a structural diagram of an embodiment of a liquid container of all-natural plant material of the present application;

Figure 2 is an exploded view of the construction of the embodiment of Figure 1;

Fig. 3 is the sectional structure diagram of Fig. 1 at the A-A position, wherein the bottle cap and the bottle body of the upper section are in a separated relationship;

Figure 4 is a configuration of a spiral paper tube made using a composite paper having a two-layer structure;

Figure 5 is a configuration of a spiral paper tube made using a composite paper with a 3-layer structure;

Fig. 6 is the structure of the composite paper with three-layer structure used for making bottle bottom;

Fig. 7 is the action flow schematic diagram of bottle bottom and bottle body combination;

FIG. 8 is a cross-sectional structural view of another embodiment of the liquid container made of all natural plant materials of the present application.

Symbol Description

10 bottle cap 11 inner thread 20 upper bottle body

21 Bottle mouth 22 Connection section 23 External thread

24 groove 30 bottle body 31 inner flange

40 Bottom of the bottle 41 Bottom surface 42 Side wall

43 chimeric groove 50 waterproof lamination film 60 spiral paper tube

D fiber arrangement direction L1 first layer of paper L2 second layer of paper

L3 third layer paper

P2 composite paper with two-layer structure P3 composite paper with three-layer structure

Detailed ways

The positional relationships described in the following embodiments, including: up, down, left and right, are based on the directions shown by the components in the drawings unless otherwise specified.

First, please refer to FIG. 1 , FIG. 2 and FIG. 3 , which are a structural diagram, an exploded structural diagram, and a cross-sectional structural diagram of an embodiment of an all-natural plant material liquid container of the present application. An example structure of the all-natural plant material liquid container of the present application includes: a bottle cap 10 , an upper bottle body 20 , a bottle body 30 and a bottle bottom 40 .

The top of the upper bottle body 20 has a bottle mouth 21 that can be connected with the bottle cap 10, and the upper bottle body 20 extends toward the bottom end with a connecting section 22 that can be inserted into the top of the bottle body 30; wherein the bottle cap 10 and the upper bottle body 20 use The mixture mainly based on plant fibers is made by injection molding technology, and the mixture mainly based on plant fibers basically comprises: natural plant fiber powder and plant-based binder; The method is a plant fiber powder made of bamboo skin, the plant-based binder contains any one of natural resin and pine juice, and all natural plant materials are completely used to have the characteristics of natural decomposition or biodegradation, which can solve traditional problems. Environmental problems caused by plastic PET bottles. The bottle body 30 is made of a spiral paper tube 60 with a multi-layer structure (see FIG. 4 ), and the top of the bottle body 30 and the connecting section 22 of the upper bottle body 20 are glued together, for example, using biodegradable polylactic acid (Polylactide, PLA) as glue.

The shape of the upper bottle body 20 is not limited to a specific shape, and the appropriate shape is usually determined according to the purpose and type of the liquid container. The upper bottle body 20 is basically a tubular component with two ends connected; Figure 1 is a An embodiment of the upper bottle body is a conical tubular component, but not limited thereto. The connection method and structure of the bottle cap 10 and the bottle mouth 21 are usually determined according to the purpose and type of the liquid container. FIG. 1 is one of the embodiments. The inner side of the cap 10 also has an inner thread 11 (see FIG. 3 ) that can be matched with the outer thread 23 . Therefore, the bottle cap 10 can be connected with the outer thread 23 of the upper bottle body 20 through the inner thread 11 .

The bottle bottom 40 is a cup-shaped structure with an opening facing downward. The bottle bottom 40 includes a bottom surface 41 and a side wall 42 surrounding the bottom surface 41. As shown in FIG. 7 , the bottle bottom 40 is inserted into the bottom of the bottle body 30 with the opening facing downward. Then, the bottle body 30 and the side wall 42 of the bottle bottom 40 are glued together, and the bottle bottom 40 is made of the composite paper P3 with a three-layer structure by molding; please refer to FIG. The different layers of the composite paper P3 with a three-layer structure have different fiber arrangement directions D (see the directions indicated by the arrows in the figure). Using this composite paper P3 to make the bottle bottom 40 can enhance the structural strength of the bottle bottom 40. and compressive strength.

In a preferred embodiment of the present application, where the bottom end of the bottle body 30 and the side wall 42 of the bottle bottom 40 are glued together, there is a fitting groove 43 (see FIG. 3 ) formed by rolling, and the fitting groove 43 is Concave toward the center of the bottle body 30 and surrounding the bottle body 30 , the fitting groove 43 can improve the reliability and structural strength of the connection between the bottle body 30 and the bottle bottom 40 .

In a preferred embodiment of the present application, the connection between the top of the upper bottle body 20 and the bottle body 30 has a snap-fit structure to improve the reliability and structural strength of the connection between the upper bottle body 20 and the bottle body 30 . The snap-fit structure includes: an inner flange 31 protruding from the top of the bottle body 30 toward the inner side of the bottle body 30 , and the above-mentioned buckle can be formed by curling the paper material at the top of the bottle body 30 inward. The inner flange 31 (see FIG. 7 ); the outer side of the connecting section 22 of the upper bottle body 20 has a groove 24 at the position corresponding to the inner flange 31, the groove 24 surrounds the connecting section 22, and the inner flange 31 can be fastened to the groove. 24 (see Figure 3). Since the bottle body 30 is made of a spiral paper tube with a multi-layer structure, and the spiral paper tube has excellent structural strength, it can better withstand radial or lateral pressure and tension, the top of the bottle body 30 and the inner flange 31 can reliably fasten the connecting section 22 to prevent loosening or deformation, so it can be used to contain beverages or liquids under pressure such as soft drinks, and meets the strength required by the bottle and the product standard of 2 years of non-leakage.

In a preferred embodiment of the present application, the bottle body 30 is made of composite paper with at least two-layer structure. For the convenience of description and distinction, hereinafter, according to the number of structural layers of the composite paper, numbers are attached after the composite paper to indicate The number of structural layers of the composite paper, for example, the symbol of the composite paper with a two-layer structure is marked as P2. FIG. 4 shows the structure of the spiral paper tube made of the composite paper P2 with a two-layer structure, and then the spiral paper tube is cut according to the length L of the bottle body 30 to make the bottle body 30, wherein the composite paper P2 with a two-layer structure is used. The two-layer structure includes: the first layer of paper L1 and the second layer of paper L2, the composite paper P2 is wound in a spiral winding manner, and the first layer of paper L1 and the second layer of paper L2 are mutually overlapped in a staggered manner. A spiral paper tube with a two-layer structure is bonded as the bottle body 30, and biodegradable polylactic acid (PLA) can also be used as glue, wherein the first layer of paper L1 becomes the outer layer and the second layer of the bottle body 30. The paper L2 becomes the inner layer of the bottle body 30 .

In a preferred embodiment of the present application, after the bottle cap 10, the upper bottle body 20, the bottle body 30 and the bottle bottom 40 are used to form the all-natural plant material liquid container of the present application, the inner side of the liquid container can be further coated with A waterproof coating 50 (see FIG. 8 ) made of biodegradable plastic is used as the material of cloth layer, and the biodegradable plastic can be polylactic acid (PLA), which is used to strengthen the liquid container of the all-natural plant material of the present application. Waterproof.

In addition to the composite paper P2 with a two-layer structure disclosed in the above embodiments, other embodiments of the present application also include using a composite paper with a structure of more than two layers to make the bottle body 30 , which can further improve the structural strength of the bottle body 30 . For example, Fig. 5 shows the structure of a spiral paper tube made of composite paper P3 with a 3-layer structure, and then the spiral paper tube is cut according to the length L of the bottle body 30 to make the bottle body 30, wherein the composite paper with a 3-layer structure is used. The 3-layer structure of P3 includes: the first layer of paper L1, the second layer of paper L2 and the third layer of paper L3, the composite paper P3 is wound in a spiral winding manner, and the first layer of paper L1 is staggered and overlapped. , The second layer of paper L2 and the third layer of paper L3 are bonded to each other to form a spiral paper tube with a 3-layer structure as the bottle body 30, wherein the first layer of paper L1 becomes the outer layer of the bottle body 30, and the second layer of paper L2 becomes the bottle. The middle layer of the bottle body 30 , and the third layer of paper L3 becomes the inner layer of the bottle body 30 . In the above-mentioned embodiment, the third layer of paper L3 serving as the inner layer of the bottle body 30 can be selected from an appropriate paper material according to the purpose of the liquid container or the type of liquid contained therein. In a preferred embodiment, the fiber arrangement directions of different layers of the composite paper having a multi-layer structure are different, so that the structural strength and compressive strength of the bottle body 30 can be enhanced.

In other embodiments of the present application, it further includes attaching aluminum foil to the inner side of the bottle body 30, which can provide the function of blocking ultraviolet rays.

The above-mentioned embodiments and/or implementations are only used to illustrate the preferred embodiments and/or implementations of the technology of the present application, and are not intended to limit the implementation of the technology of the present application in any form. Personnel, without departing from the scope of the technical means disclosed in the content of the application, may make some changes or modifications to other equivalent embodiments, but they should still be regarded as substantially the same technology or embodiment as the application.

Claims

A liquid container made of all-natural plant material, characterized in that it comprises: a bottle cap, an upper bottle body, a bottle body and a bottle bottom; the top of the upper bottle body has a bottle mouth that can be connected with the bottle cap , the upper bottle body extends toward the bottom end with a connecting section that can be inserted into the top end of the bottle body, and the bottle cap and the upper bottle body are made of a mixture based on plant fibers and are made by injection molding technology; the The bottle body is made of a spiral paper tube with a multi-layer structure, and the top of the bottle body and the connecting section of the upper bottle body are glued and connected; the bottle bottom is a cup-shaped structure with an opening facing down, and the bottle bottom includes a bottom surface and a bottom surface. Surrounding a side wall of the bottom surface, the bottom of the bottle is inserted into the bottom end of the bottle body with the opening facing downward, and then the side wall of the bottle body and the bottom of the bottle are glued together. The composite paper with a three-layer structure is made by molding, and the fiber arrangement directions of different layers of the composite paper with a three-layer structure are different.
The all-natural plant material liquid container according to claim 1, wherein the top of the upper bottle body and the connection of the bottle body have a buckle structure, and the buckle structure comprises: the top of the bottle body faces the The inner flange protruding from the inner side of the bottle body, the outer side of the connecting section of the upper bottle body has a groove at the position corresponding to the inner flange, the groove surrounds the connecting section, and the inner flange can be fastened to the inner flange. groove.
The all-natural plant material liquid container according to claim 1, wherein the glued part of the bottom end of the bottle body and the side wall of the bottle bottom has a fitting groove formed by rolling, and the fitting groove is It is recessed toward the center of the bottle body and surrounds the bottle body.
The all-natural plant material liquid container according to claim 1, wherein the mixture mainly composed of plant fibers comprises: natural plant fiber powder and a plant-based binder.
The all-natural plant material liquid container according to claim 1, wherein the natural plant fiber powder is a plant fiber powder made of bamboo skin, and the plant-based binder comprises any one of natural resin and pine juice kind.