Novel environment-friendly binary package and installation and recovery method
By designing a new type of binary packaging with a liquid outlet chamber and valve body inside the packaging bag, the compressed gas propellant is eliminated, the explosion risk in production and recycling is solved, safe and environmentally friendly packaging recycling is achieved, and the recycling rate is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2026-03-10
AI Technical Summary
Existing binary packaging poses a risk of high-pressure gas explosion during production and recycling, and is difficult to process within existing waste sorting infrastructure, resulting in a low recycling rate.
Design a new type of environmentally friendly binary packaging, which uses a packaging bag with a liquid outlet chamber and a valve body inside, and is fixed to the bottle mouth by a retractable sleeve, eliminating the need for compressed gas propellant and using existing waste sorting facilities for disposal.
It reduces the difficulty and risk of production and installation, increases the recycling rate, simplifies the production process, and achieves safe and environmentally friendly packaging recycling.
Smart Images

Figure CN121626569A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of binary packaging technology, and in particular to a novel environmentally friendly binary packaging and its installation and recycling method. Background Technology
[0002] Common packaging forms for aerosol cans are single-component and dual-component packaging. Single-component packaging usually consists of only one container, in which the contents and propellant are mixed in the same phase. It is characterized by its relatively simple structure and low cost. Based on considerations of propellant pressure and stability, the commonly used propellants for single-component packaging are Freon-based or hydrocarbon-based propellants. These propellants have advantages such as relatively low price and wide availability, but they also have a certain degree of flammability and pose certain safety risks.
[0003] The biggest difference between binary packaging and unary packaging is that binary packaging has two independent container systems, with the contents and propellant stored in different spaces, which provides higher safety. Because the contents and propellant do not come into direct contact, the risk of potential chemical reactions is reduced. Therefore, the commonly used propellants for binary packaging are nitrogen, carbon dioxide, etc.
[0004] The dual-packaging system consists of a bottle and a dual-bag. During installation, the dual-bag is rolled up and inserted into the bottle opening. The contents are first filled into the dual-bag, and compressed gas is injected while sealing the gap between the bottle and the dual-bag. High airtightness is required, and the high-pressure gas used in production poses an explosion risk. Furthermore, even after the contents of the dual-packaging system are used up, it still retains high internal pressure, which can also lead to an explosion if not handled properly. Not only are consumers unsure how to recycle them, but current waste sorting infrastructure is also unable to handle this type of packaging. The difficulty in recycling aerosols lies in the gas contained within their metal casing. Some existing recycling plants require special qualifications and specialized equipment to perforate or shred the empty aerosol bottles and integrate them into the metal recycling process, which is cumbersome and results in a very low recycling rate. Summary of the Invention
[0005] To overcome the shortcomings of existing technologies, this invention provides a novel environmentally friendly binary packaging and a method for its installation and recycling.
[0006] The technical solution adopted by this invention to solve its technical problem is: A novel environmentally friendly binary packaging includes a packaging bag with a liquid outlet chamber inside. A valve body communicating with the liquid outlet chamber is sealed and installed at the upper end of the packaging bag. An mounting seat is fixed to the outside of the valve body. The binary packaging also includes a bottle and a hollow retractable sleeve. After the packaging bag is rolled up, it is inserted into the retractable sleeve. The packaging bag is fixed to the bottle mouth of the bottle body by the mounting seat.
[0007] After the liquid outlet chamber is filled with contents, the retractable sleeve extends outward to fit against the inner wall of the bottle.
[0008] When the retractable sleeve is not extended outward, its diameter is smaller than the inner diameter of the bottle opening.
[0009] The bottle opening is provided with an external thread, and the mounting base is provided with an internal thread corresponding to the external thread, and the external thread and the internal thread are threadedly connected.
[0010] The valve body is equipped with a nozzle.
[0011] The bottle is fitted with a protective cap.
[0012] A recycling and installation method for the aforementioned novel environmentally friendly binary packaging, the installation method comprising the following steps: S1: Roll up the packaging bag; S2: Use equipment to expand the inner diameter of the retractable sleeve to a size larger than the size of the packaged bag after it is rolled up; S3: Insert the packaging bag into the retractable sleeve and remove the device from S2, so that the retractable sleeve retracts and abuts against the packaging bag; S4: Thread the mounting base to the bottle body to fix the packaging bag and the retractable sleeve inside the bottle body; S5: Fill the contents into the liquid outlet chamber through the valve body; S6: Install the nozzle onto the valve body; S7: Install the protective cap onto the bottle body; The recycling method includes the following steps: A1: Collect used binary packaging through recycling stalls and waste sorting; A2: Separate the mounting base, bottle body, valve body, and packaging bag, and process them separately; A3: Transport to the appropriate recycling plant for reuse and processing.
[0013] The beneficial effects of this invention are as follows: The invention includes a liquid outlet chamber inside the packaging bag, and a valve body connected to the liquid outlet chamber is sealed and installed at the upper end of the packaging bag. An installation seat is fixed to the outside of the valve body. The binary packaging also includes a bottle body and a hollow retractable sleeve. After the packaging bag is rolled up, it is inserted into the retractable sleeve. The packaging bag is fixed to the bottle opening of the bottle body by the installation seat. By replacing the propellant in traditional aerosol cans with the retractable sleeve, the invention retains the advantage of keeping the contents independently placed in the packaging bag to avoid contamination, while eliminating the use of compressed gas as a propellant. This effectively reduces the difficulty of production and installation and solves the explosion risk associated with using compressed gas as a production raw material. Furthermore, since this invention does not involve high-pressure gas, it can be directly processed using existing waste sorting infrastructure, effectively improving the recycling rate. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is one of the structural diagrams of the present invention (without canned contents); Figure 2 This is the second structural diagram of the present invention (with contents already filled). Figure 3 This is a diagram illustrating the insertion of the packaging bag into the retractable sleeve. Figure 4 This is a structural diagram of the packaging bag. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0017] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.
[0018] The following describes some embodiments of the present invention with reference to the accompanying drawings.
[0019] Reference Figure 1-4A novel environmentally friendly binary packaging system includes a packaging bag 1 with a liquid outlet chamber 2 inside. A valve body 3, communicating with the liquid outlet chamber 2, is sealed at the upper end of the packaging bag 1. A mounting base 4 is fixed to the outside of the valve body 3. The binary packaging also includes a bottle body 5 and a hollow retractable sleeve 6. After the packaging bag 1 is rolled up, it is inserted into the retractable sleeve 6. The packaging bag 1 is fixed to the bottle mouth of the bottle body 5 by the mounting base 4. By replacing the propellant in traditional aerosol cans with the retractable sleeve, the system retains the advantage of keeping the contents independently placed in the packaging bag to avoid contamination, while eliminating the use of compressed gas as a propellant. This effectively reduces the difficulty of production and installation, and solves the explosion risk associated with using compressed gas as a production raw material. It greatly simplifies the production process and improves production efficiency. Furthermore, since this invention does not use high-pressure gas, it can directly utilize existing waste sorting infrastructure for processing, such as the retraction of plastic bottles and the recycling of metal bottles, effectively improving the recycling rate.
[0020] The packaging bag 1 is an existing binary packaging bag. The difference from those on the market is that the commercially available bags require a sealing cup as a mounting base because they need to use compressed gas as a propellant. This product replaces the sealing cup with a threaded cap.
[0021] After the contents are filled into the outlet chamber 2, the retractable sleeve 6 extends outward to fit against the inner wall of the bottle body 5. At this time, the retractable sleeve 6 is still within the range of elastic deformation. When it recovers, it can be recycled and reused after simple processing (such as cleaning and disinfection).
[0022] When the retractable sleeve 6 extends outward, its wall thickness decreases accordingly; when the retractable sleeve 6 returns to its original position, its wall thickness returns accordingly.
[0023] When the retractable sleeve 6 is not extended outward, its diameter is smaller than the inner diameter of the bottle mouth of the bottle body 5.
[0024] The bottle body 5 has an external threaded portion at its mouth, and the mounting base 4 has an internal threaded portion corresponding to the external threaded portion. The external threaded portion and the internal threaded portion are threadedly connected. In addition, the bottle body 5 and the mounting base 4 can also be fixed by conventional connection methods such as snap-fit.
[0025] In this product, since there is no high-pressure gas in the bottle body 5 and the packaging bag 1, there is no airtightness requirement for the installation of the bottle body 5 and the mounting base 4. It can be consistent with conventional bottles and meet the requirement of mutual fixation.
[0026] The bottle body 5 can be made of plastic or metal.
[0027] A nozzle is installed on the valve body 3. When the nozzle is pressed, the channel of the valve body 3 is opened, the retracting sleeve 6 retracts, and the contents of the packaging bag 1 are squeezed out. When the retracting sleeve 6 returns to a non-elastic state, that is, when the retracting sleeve 6 will not squeeze the packaging bag 1 inward, it means that the product has been used up.
[0028] A protective cap is installed on the bottle body 5.
[0029] A recycling and installation method for the aforementioned novel environmentally friendly binary packaging, the installation method comprising the following steps: S1: Roll up the packaging bag 1; S2: Use equipment to expand the inner diameter of the retractable sleeve 6 to a size larger than the size of the packaged bag 1 after it is rolled up (this type of equipment is existing equipment). S3: Insert the packaging bag 1 into the retractable sleeve 6 and remove the device from S2, so that the retractable sleeve 6 retracts and abuts against the packaging bag 1; S4: Thread the mounting base 4 to the bottle body 5, thereby fixing the packaging bag 1 and the retractable sleeve 6 inside the bottle body 5; S5: Fill the contents into the liquid outlet chamber 2 through the valve body 3; S6: Install the nozzle onto the valve body 3; S7: Install the protective cap onto the bottle body 5; The recycling method includes the following steps: A1: Collect used binary packaging through recycling stalls and waste sorting; A2: Separate the mounting base 4, bottle body 5, valve body 3, and packaging bag 1, and process them separately; A3: Transport to the appropriate recycling plant for reuse and processing.
[0030] In this invention, the term "a plurality of" refers to two or more unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0031] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0032] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A new eco-friendly dual packaging comprising a packaging bag (1), characterized in that The packaging bag (1) is provided with a liquid outlet cavity (2), and a valve body (3) in communication with the liquid outlet cavity (2) is sealingly mounted at the upper end of the packaging bag (1); the outer side of the valve body (3) is fixed with a mounting seat (4), and the binary package further comprises a bottle body (5) and a hollow retractable sleeve (6), the packaging bag (1) is inserted into the retractable sleeve (6) after being rolled up, and the packaging bag (1) is fixed at the bottle mouth of the bottle body (5) through the mounting seat (4).
2. The novel eco-friendly dual packaging according to claim 1, characterized in that After the liquid outlet cavity (2) is filled with contents, the retractable sleeve (6) is extended outward to be attached to the inner wall of the bottle body (5).
3. The novel eco-friendly dual packaging according to claim 1, characterized in that When the retractable sleeve (6) is not extended outward, the diameter is smaller than the inner diameter of the bottle mouth of the bottle body (5).
4. The novel eco-friendly dual packaging according to claim 1, characterized in that The bottle mouth of the bottle body (5) is provided with an external thread part, and the mounting seat (4) is provided with an internal thread part corresponding to the external thread part, and the external thread part and the internal thread part are threadedly connected.
5. The novel eco-friendly dual packaging according to claim 1, characterized in that A spray head is mounted on the valve body (3).
6. The novel eco-friendly dual packaging according to claim 1, characterized in that A protective cover is mounted on the bottle body (5).
7. A method for recycling installation of the new environment-friendly dual packaging according to claims 1-6, characterized in that, The installation method comprises the following steps: S1: rolling up the packaging bag (1); S2: using equipment to expand the inner diameter of the retractable sleeve (6) to be greater than the size of the packaging bag (1) after being rolled up; S3: inserting the packaging bag (1) into the inside of the retractable sleeve (6), and removing the equipment in S2 to make the retractable sleeve (6) retract to be attached to the packaging bag (1); S4: threadedly fixing the mounting seat (4) and the bottle body (5) to fix the packaging bag (1) and the retractable sleeve (6) in the bottle body (5); S5: filling contents into the liquid outlet cavity (2) through the valve body (3); S6: mounting the spray head on the valve body (3); S7: mounting the protective cover on the bottle body (5); The recycling method comprises the following steps: A1: collecting the used binary package through recycling stalls and garbage classification; A2: separating the mounting seat (4), the bottle body (5), the valve body (3) and the packaging bag (1), and classifying and processing them; A3: delivering to corresponding recycling manufacturers for recycling and processing.