CN217496883U

CN217496883U - Waterproof paper bottle with inner side sprayed with film

Info

Publication number: CN217496883U
Application number: CN202220201816.0U
Authority: CN
Inventors: 许喻婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-09-27
Anticipated expiration: 2032-01-25

Abstract

The application provides a waterproof paper bottle of inboard spraying film contains: a bottle cap, an upper segment bottle body and a lower segment bottle body; the bottle cap and the upper bottle body are made of a mixture mainly containing plant fibers by an injection molding technology; the application provides a cladding worker method behind type, uses vegetable glue to scribble the inner wall of hypomere body with the mode of spraying, forms a overburden at the inner wall of hypomere body, can provide complete airtight and waterproof function in hypomere body inside, then uses biodegradable viscose veneer to connect upper segment body and hypomere body to become the waterproof paper bottle of inside spraying film. The waterproof paper bottle of inboard spraying film of this application possesses excellent structural strength, can be better bear radial/horizontal pressure, can be used to hold beverage or liquid that have pressure, acid-base nature or osmotic force.

Description

Waterproof paper bottle with inner side sprayed with film

Technical Field

The application relates to a structure of a liquid container and a manufacturing method thereof, in particular to a waterproof paper bottle with an inner spraying film, which has excellent structural strength, can better bear radial/transverse pressure and can be used for containing beverages or liquid with pressure, acidity or alkalinity or permeability.

Background

Most of the most widely used beverage containers in the market at present are plastic bottles (or PET bottles), the raw material for producing the traditional plastic bottles is mainly Polyethylene terephthalate (PET), and since PET bottles are produced and used in large quantities worldwide, but PET bottles 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 problem caused by plastic bottles, containers made of naturally degradable environmental friendly materials are proposed and put into mass production. Paper bottles made entirely of paper material and by integral molding techniques have been proposed by state manufacturers such as the united states, the united kingdom, the netherlands and danish, but have the advantage of being easy and quick to manufacture, but have insufficient structural strength and compressive strength, and are easily broken from structurally weak portions, and thus cannot be used as soda bottles or contain beverages or liquids (e.g., sparkling water) under pressure.

In the approved new taiwan patent publication (certificate number M589181), a paper-based composite structure for beverage bottles is disclosed, comprising: 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 bottle body, wherein the tubular body is made of biodegradable plastics; 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 paper-based composite paper; the bottle cap and the tubular body of the bottle mouth are made of biodegradable plastics, and the upper section of the bottle body of the bottle mouth is made of any one of biodegradable plastics, original wood pulp paper, regenerated wood pulp paper, bamboo fiber paper and straw pulp paper.

In the approved new taiwan patent publication (certificate number M583428), a paper-based composite structure for beverage bottles is disclosed, comprising: 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 neck comprises a tubular body and an upper section bottle body, wherein the tubular body is made of biodegradable plastics, and the upper section bottle body is made of stone paper.

The beverage bottle of the prior art has the function of natural degradation, but the body of the beverage bottle is a tubular spiral structure, if the body is used for containing beverage or liquid (such as sparkling water) with pressure, the cross section of the seam of the spiral structure is easy to have the problem of penetration; although other paper materials are commercially available for producing paper containers, such as beverages or tableware, which are made by coating or forming a waterproof film (e.g., PE film) on the surface of the paper material and then using the paper material with the waterproof film, the beverage containers or tableware are also inevitably penetrated in the cross section of the joint if they are used for containing beverages or liquids (e.g., sparkling water) under pressure.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved provides a waterproof paper bottle of inboard spraying film, and its aim at solves the environmental protection problem that the whole paper PET bottles that adopt integrated into one piece technology to make of prior art to and the tradition uses the paper material preparation beverage container that has PE to drench the membrane, can take place the infiltration in the cross section of seam crossing, can't be used for holding the problem that has the beverage or the liquid of pressure, acid-base nature or osmotic force.

This application inboard spraying film's an embodiment step of waterproof paper bottle includes:

the method comprises the following steps of (1) using a mixture mainly containing plant fibers as a material, manufacturing a bottle cap and an upper section of bottle body by an injection molding technology, wherein the top end of the upper section of bottle body is provided with a bottle mouth which can be connected with the bottle cap, and the upper section of bottle body extends towards the bottom end to form a connecting section;

manufacturing a bottle body by using a spiral paper tube with a multilayer structure;

using composite paper with at least two layers of structures to manufacture a bottle bottom in a molding mode, wherein the bottle bottom is in a cup-shaped structure with an opening facing downwards, and the bottle bottom comprises a bottom surface and a side wall surrounding the bottom surface;

the bottle bottom is plugged into the bottom end of the bottle body in a mode that the opening faces downwards, the bottle body and the side wall of the bottle bottom are bonded into a lower-section bottle body through biodegradable viscose, the bottle bottom is positioned at the bottom end of the lower-section bottle body, and the top end of the lower-section bottle body is provided with an opening;

the inner wall of the lower section of the bottle body and the inner surface of the bottle bottom are fully coated with vegetable gum in a spraying way, and a covering layer is formed on the inner surfaces of the lower section of the bottle body and the bottle bottom; and

the connecting section of the upper section of the bottle body is inserted into the opening of the lower section of the bottle body and then is connected into the waterproof paper bottle with the inner side coated with the film through the biodegradable viscose glue.

An embodiment of the waterproof carton bottle of inboard spraying film of this application constructs, includes: the bottle comprises a bottle cap, an upper section of bottle body and a lower section of bottle body;

the top end of the upper section bottle body is provided with a bottle mouth which can be connected with a bottle cap, the upper section bottle body extends towards the bottom end to form a connecting section, and the bottle cap and the upper section bottle body are made of powdery plant fibers by an injection molding technology;

the lower bottle body comprises a bottle body and a bottle bottom, wherein the bottle body is made of a spiral paper tube with a multilayer structure, the bottle bottom is made of composite paper with at least two layers of structures in a molding mode, the bottle bottom is of a cup-shaped structure with a downward opening, the bottle bottom comprises a bottom surface and a side wall surrounding the bottom surface, the bottle bottom is plugged into the bottom end of the bottle body in a mode of downward opening, then the bottle body and the side wall of the bottle bottom are bonded into the lower-section bottle body by biodegradable viscose, the top end of the lower-section bottle body is provided with an opening, the inner wall of the lower section bottle body and the inner surface of the bottle bottom are provided with a covering layer, the covering layer is formed by using vegetable glue to fully coat the inner wall of the lower section bottle body and the inner surface of the bottle bottom in a spraying mode, the connecting section of the upper section bottle body is inserted into the opening of the lower section bottle body and then is connected into the waterproof paper bottle with the inner side coated with a film in a gluing mode through the biodegradable viscose.

As a preferred embodiment of the present application, the plant fiber-based mixture comprises: natural plant fiber powder and a plant adhesive.

As a preferred embodiment of the present application, the natural plant fiber powder is plant fiber powder made of bamboo bark, and the vegetable binder comprises any one of natural resin and pine juice.

As a preferred embodiment of the present application, the biodegradable viscose is polylactic acid (PLA) viscose.

As a preferred embodiment of the present application, the vegetable gum is made of pine juice, tapioca powder or bamboo powder.

As a preferred embodiment of the present application, the vegetable gum is selected from the group consisting of tung oil, rubber and algin.

The beverage container has the advantages and effects that the beverage container is made of natural plant materials, has excellent structural strength, can better bear radial/transverse pressure, and can be used for containing beverages or liquids with pressure, acidity or alkalinity or permeability, such as soda water, daily necessities or grease.

The waterproof paper bottle with the film sprayed on the inner side is different from the traditional paper material for producing the paper container, and is characterized in that a waterproof coating (such as a PE coating) is coated or formed on the surface of the paper material; the application provides a molding back coating construction method, which is characterized in that the inner wall of a lower section bottle body is coated with vegetable gum in a spraying mode, a coating layer is formed on the inner wall of the lower section bottle body and the inner surface of a bottle bottom, gaps and seams of each winding layer of a spiral paper tube can be filled up really, a completely airtight and waterproof function is further provided inside the lower section bottle body, and the molding back coating construction method has the effects of 100% water vapor impermeability and 100% oxygen impermeability through the tests of oxygen permeability OTR and water vapor permeability WVTR.

Other features and embodiments of the present application 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 a construction view of one embodiment of a waterproof carton bottle with a film sprayed on the inside of the present application;

FIG. 2 is a constructed exploded view of the embodiment of FIG. 1;

FIG. 3 is a cross-sectional configuration view of the lower body;

FIGS. 4A and 4B are schematic views illustrating an operation of spraying vegetable gum on the inner wall of the lower bottle body and the inner surface of the bottle bottom to form a coating layer on the inner wall of the lower bottle body and the inner surface of the bottle bottom;

fig. 5 is a sectional configuration view of an embodiment of the waterproof paper bottle of the present application, in which a bottle cap and an upper body are shown in a separated relationship.

Description of the symbols

10 bottle cap 11 internal thread 20 upper segment body

21 bottle mouth 22 connecting section 23 external thread

24 groove 30 body 31 inner flange

32 bottom surface of bottle bottom 41 of engaging groove 40

42 side wall 50 lower part bottle body 51 cover layer

52 opening 60 spray nozzle 61

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 to fig. 1, fig. 2 and fig. 3, a structural diagram, an exploded structural view and a cross-sectional structural view of a lower bottle body 50 of an embodiment of a waterproof paper bottle with an inner side sprayed with a film according to the present application are shown. An embodiment of the waterproof carton bottle of inboard spraying film of this application constructs, contains: bottle lid 10, upper segment body 20, and lower section body 50, wherein lower section body 50 comprises body 30 and bottle bottom 40.

The top end of the upper section bottle body 20 is provided with a bottle mouth 21 which can be connected with the bottle cap 10, and the upper section bottle body 20 extends towards the bottom end to form a connecting section 22; the bottle cap 10 and the upper bottle body 20 are made of a mixture mainly containing plant fibers by an injection molding technology, and the mixture mainly containing the plant fibers basically comprises the following components: natural plant fiber powder and a plant adhesive; the preferable mode of the natural plant fiber powder is plant fiber powder made of bamboo skin, the plant adhesive contains any one of natural resin and pine juice, and the all-natural material is completely used and has the characteristic of natural decomposition or biological decomposition, so that the environmental protection problem caused by the traditional plastic PET bottle can be solved.

The connection manner and structure of the bottle cap 10 and the bottle mouth 21 are generally determined according to the purpose and kind of the liquid container, and fig. 1 illustrates an embodiment in which the upper body 20 has an external thread 23 near the bottle mouth 21, and the inner side of the bottle cap 10 also has an internal thread 11 (see fig. 3) that can be matched with the external thread 23, so that the bottle cap 10 can be connected together by the internal thread 11 and the external thread 23 of the upper body 20.

Wherein the bottle body 30 is a spiral tube structure with two ends communicated and made of a spiral paper tube with a multilayer structure, and the spiral paper tube is made of natural fiber paper in a spiral winding mode; in another preferred embodiment of the present application, the body 30 is made of a composite paper having at least two layers, and the structural strength of the body 30 can be further improved by making the body 30 of a composite paper having more than two layers (e.g. three layers).

The bottle bottom 40 is made by molding at least two layers of composite paper, preferably at least two layers of natural fiber paper, and the bottle bottom 40 is made by molding three layers of composite paper, as shown in fig. 3 and 5, wherein the bottle bottom 40 is in a cup-shaped structure with an opening facing downwards, the bottle bottom 40 comprises a bottom surface 41 and a side wall 42 surrounding the bottom surface 41, the bottle bottom 40 is inserted into the bottom end of the bottle body 30 with the opening facing downwards, the bottle body 30 and the side wall 42 of the bottle bottom 40 are bonded into the lower bottle body 50 by biodegradable adhesive, a film-shaped covering layer 51 is formed on the inner wall of the lower bottle body 50 and the inner surface of the bottle bottom 40, the covering layer 51 is formed by spraying plant glue on the inner wall of the lower bottle body 50 and the inner surface of the bottle bottom 40, the cover layer 51 can fill the gaps and seams of the spiral paper tube, such as the seams of the side wall 42 of the bottle body 30 and the bottle bottom 40, and provide a completely airtight and waterproof function inside the lower bottle body 50, and has 100% water vapor proof and 100% oxygen gas proof effects through the oxygen transmission rate OTR and the water vapor transmission rate WVTR tests.

The top end of the lower bottle body 50 is provided with an opening 52 (see fig. 2 and 3), the connecting section 22 of the upper bottle body 20 can be inserted into the opening 52 of the lower bottle body 50 and then bonded by the biodegradable viscose glue to form a waterproof paper bottle with a thin film sprayed on the inner side; one preferred embodiment of biodegradable viscose is polylactic acid (PLA) viscose.

In a preferred embodiment of the present application, wherein the joint between the bottom end of the body 30 and the sidewall 42 of the bottom 40 has a roll-formed fitting groove 32 (see fig. 3), the fitting groove 32 is recessed toward the center of the body 30 and surrounds the body 30, and the fitting groove 32 can improve the reliability and structural strength of the connection between the body 30 and the bottom 40.

Referring to fig. 3, in a preferred embodiment of the present application, the joint of the connecting section 22 of the upper body 20 and the lower body 50 has a fastening structure to improve the reliability and structural strength of the connection between the upper body 20 and the lower body 50. The buckling structure comprises: an inner flange 31 protruding from the top end of the body 30 of the lower body 50 toward the inside of the body 30, the inner flange 31 being formed by curling a paper material of the top end of the body 30 inward; the outer side of the connecting section 22 of the upper body 20 has a groove 24 corresponding to the position of the inner flange 31, the groove 24 surrounds the connecting section 22, and the inner flange 31 can be buckled in the groove 24. Since the bottle body 30 is made of a spiral paper tube having a multi-layer structure and the spiral paper tube has excellent structural strength to better withstand radial or lateral pressure and tension, the top end of the bottle body 30 and the inner flange 31 can securely fasten the engaging section 22 to prevent loosening or deformation, so that it can be used to contain pressurized beverages or liquids such as carbonated drinks, and can meet the same strength requirements as PET bottles and the 2-year-round non-leakage product standards.

The method for manufacturing the waterproof paper bottle with the film sprayed on the inner side comprises the following steps:

the bottle cap 10 and the upper section of the bottle body 20 are made of a mixture mainly containing plant fibers by an injection molding technology, the top end of the upper section of the bottle body 20 is provided with a bottle mouth 21 which can be connected with the bottle cap 10, and the upper section of the bottle body 20 extends towards the bottom end to form a connecting section 22;

the bottle body 30 is made of a spiral paper tube with a multilayer structure;

using composite paper with at least two layers to manufacture a bottle bottom 40 in a molding mode, wherein the bottle bottom 40 is in a cup-shaped structure with an opening facing downwards, and the bottle bottom 40 comprises a bottom surface 41 and a side wall 42 surrounding the bottom surface 41;

inserting the bottle bottom 40 into the bottom end of the bottle body 30 with the opening facing downward, and bonding the bottle body 30 and the side wall 42 of the bottle bottom 40 into a lower bottle body 50 by biodegradable adhesive, wherein the bottle bottom 40 is located at the bottom end of the lower bottle body 50, and the top end of the lower bottle body 50 is provided with an opening 52;

coating the inner wall of the lower bottle body 50 and the inner surface of the bottle bottom 40 with vegetable gum by spraying, and forming a covering layer 51 on the inner wall of the lower bottle body 50 and the inner surface of the bottle bottom 40 (see fig. 4A and 4B); and

the connecting section 22 of the upper section of the bottle body 20 is inserted into the opening 52 of the lower section of the bottle body 50, and the upper section of the bottle body 20 and the lower section of the bottle body 50 are glued and connected by the biodegradable viscose to form the waterproof paper bottle with the inner side coated with the film.

The application provides a type rear coating construction method, the inner wall of a lower section bottle body 50 is coated with vegetable gum in a spraying mode, a coating layer 51 is formed on the inner wall of the lower section bottle body 50, the coating layer 51 can truly fill gaps of each winding layer of a spiral paper tube, further, the complete air-tight and waterproof functions are provided inside the lower section bottle body 50, and the effects of 100% water vapor impermeability and 100% oxygen impermeability are achieved through testing of an oxygen permeability OTR and a water vapor permeability WVTR. The bottle cap 10 and the upper body 20 are made of a mixture mainly including plant fibers by an injection molding technique, and since the mixture contains a plant adhesive and is tightly adhered and molded, the mixture has excellent air-tightness and waterproof capability in addition to a considerable structural strength, and the liquid is mainly stored in the lower body 50 during normal use, and can be used for containing beverages or liquids with pressure, acidity or alkalinity, such as soda water, daily necessities or grease, through the excellent air-tightness and waterproof performance of the inner sidewall surface of the lower body 50 and the cover layer 51 of the inner surface of the bottle bottom 40.

Fig. 4A and 4B illustrate an exemplary embodiment, after the bottle body 30 and the sidewall 42 of the bottle bottom 40 are bonded to the lower bottle body 50 by biodegradable adhesive, the inner wall of the lower bottle body 50 is coated with the plant glue by spraying using a nozzle 60 that can extend into the lower bottle body 50, and a covering layer 51 is formed on the inner wall of the lower bottle body 50, so as to more uniformly spray the plant glue, the nozzle 60 has a plurality of nozzles 61 facing different angles.

As a preferred embodiment of the present application, the vegetable gum is made of pine juice, tapioca powder or bamboo powder. In other preferred embodiments of the present application, wherein the vegetable gum is selected from the group consisting of tung oil, rubber and algin.

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

Claims

1. The utility model provides an inboard spraying film's waterproof paper bottle which characterized in that includes: the bottle comprises a bottle cap, an upper section of bottle body and a lower section of bottle body;

the top end of the upper section bottle body is provided with a bottle mouth which can be connected with the bottle cap, and the upper section bottle body extends towards the bottom end to form a connecting section;

the lower bottle body comprises a bottle body and a bottle bottom, the bottle body is made of a spiral paper tube with a multilayer structure, the bottle bottom is made in a molding manner by using composite paper with at least two layers of structures, the bottle bottom is in a cup-shaped structure with an opening facing downwards, the bottle bottom comprises a bottom surface and a side wall surrounding the bottom surface, the bottle bottom is plugged into the bottom end of the bottle body in a mode that the opening faces downwards, then the bottle body and the side wall of the bottle bottom are bonded into the lower-section bottle body by biodegradable viscose, the top end of the lower bottle body is provided with an opening, a covering layer is formed on the inner wall of the lower bottle body and the inner surface of the bottle bottom, the covering layer is formed by using vegetable gum to coat the inner wall of the lower section bottle body and the inner surface of the bottle bottom in a spraying way, the connecting section of the upper section of the bottle body is inserted into the opening of the lower section of the bottle body and then is connected by the biodegradable viscose glue in a gluing way.

2. The waterproof paper bottle with the inner side sprayed with the film as claimed in claim 1, wherein the bottle cap and the upper bottle body are made of powdered plant fibers by an injection molding technology.

3. The waterproof paper bottle with an inner sprayed film as claimed in claim 1, wherein the biodegradable adhesive is polylactic acid adhesive.