Self-inflating buffer bag

Abstract

The utility model relates to the technical field of cushion packaging, in particular to a self-inflating cushion bag which comprises a bag body (divided into a first bag cavity, a second bag cavity, a third bag cavity and a fourth bag cavity, and the third bag cavity is divided into a first containing cavity and a second containing cavity) and a solid containing bag (comprising a third containing cavity and a protruding part formed through extension, and the protruding part is fixed to the second containing cavity). The first bag cavity and the second bag cavity can be communicated through extrusion so that the contents can be in contact with each other to generate gas, and gas pressure can be used for extruding and communicating the first, second and fourth bag cavities; the first containing cavity and the second containing cavity can be communicated through extrusion, so that the second liquid material is sucked and permeated by the protruding part and gradually makes contact with the second solid material to slowly produce gas. The self-inflating buffer bag can achieve self-inflating through simple pressing, is low in cost and good in buffer effect, can supplement air through simple pressing, and is suitable for objects needing long-distance transportation or transfer.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and in particular to a self-inflating cushioning bag. Background Technology

[0002] With the booming development of e-commerce, express delivery has become an indispensable part of people's lives. People's demands for express delivery are increasing, requiring not only fast and punctual delivery but also that goods arrive intact during transit. This places higher demands on the cushioning packaging materials used for goods.

[0003] Inflatable cushioning bags are a widely used type of cushioning packaging material. They are inflated to form an air cushion, effectively absorbing and dispersing external impacts to protect the contents from damage. They offer advantages such as low cost, light weight, good cushioning effect, and high space utilization. Currently, the most common inflation method is mechanical inflation, which requires specific inflation equipment and a fixed location, resulting in higher production and transportation costs.

[0004] Furthermore, current inflatable cushioning bags are formed by inflation only once. During long-distance transportation, natural leakage causes the inflation volume to gradually decrease, thus affecting the cushioning performance and making them unsuitable for goods that require long-distance transportation. Utility Model Content

[0005] Based on this, one or more embodiments of this application provide a self-inflating cushioning bag that can be inflated without the need for special equipment or auxiliary tools such as power supply. It is simple to operate and can provide long-term cushioning, making it suitable for items that need to be transported over long distances.

[0006] The technical solution of this application includes:

[0007] A self-inflating cushioning bag includes a bag body and a solid containing bag; the bag body is divided into a sealed first bag cavity, a second bag cavity, a third bag cavity, and a fourth bag cavity by a sealing portion;

[0008] The first and second bag cavities are respectively used to contain a first liquid material and a first solid material that can react with each other to generate gas; by squeezing the first bag cavity, the pressure sealing part between the first and second bag cavities can be released to achieve communication between the first and second bag cavities; when the first and second bag cavities are in communication, the gas pressure generated can squeeze and release the pressure sealing part between the first or second bag cavity and the fourth bag cavity to achieve communication between the first or second bag cavity and the fourth bag cavity;

[0009] The third bag cavity is divided into a sealed first accommodating cavity and a second accommodating cavity by a pressure sealing portion; the solid accommodating bag includes a third accommodating cavity and a protrusion extending from the third accommodating cavity; the protrusion is fixedly disposed in the second accommodating cavity; the first accommodating cavity and the third accommodating cavity are respectively used to accommodate a second liquid material and a second solid material that can react with each other to produce gas; by squeezing the first accommodating cavity, the pressure sealing portion between the first accommodating cavity and the second accommodating cavity can be released to realize communication between the first accommodating cavity and the second accommodating cavity; when the first accommodating cavity and the second accommodating cavity are in communication, the second liquid material can permeate into the third accommodating cavity through the attraction of the protrusion.

[0010] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions:

[0011] (1) The width of the sealing portion between the first bag cavity and the second bag cavity is L1, the width of the sealing portion between the first bag cavity and the fourth bag cavity is L2, and the width of the sealing portion between the second bag cavity and the fourth bag cavity is L3; L1 < L2, L1 < L3;

[0012] (2) The strength of the sealing portion between the first bag cavity and the second bag cavity is Q1, the strength of the sealing portion between the first bag cavity and the fourth bag cavity is Q2, and the strength of the sealing portion between the second bag cavity and the fourth bag cavity is Q3; Q1 < Q2, Q1 < Q3.

[0013] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions: (a1) 0.8mm ≤ L1 ≤ 1.2mm, (a2) 2.5mm ≤ L2 ≤ 3.5mm, (a3) ​​2.5mm ≤ L3 ≤ 3.5mm; and / or

[0014] The self-inflating cushioning bag satisfies at least one of the following conditions: (b1) 3N / 15mm≤Q1≤5N / 15mm, (b2) 8N / 15mm≤Q2≤10N / 15mm, (b3) 8N / 15mm≤Q2≤10N / 15mm.

[0015] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions:

[0016] (1) A portion of the sealing portion between the first bag cavity and the second bag cavity is fully pressed to form a first fully fitted connection segment, and another portion is pressed at points to form a first multi-point contact connection segment;

[0017] (2) The sealing portion between the first bag cavity and the fourth bag cavity is formed by point pressing to form a second multi-point contact connection section;

[0018] (3) The sealing part between the second bag cavity and the fourth bag cavity is formed by point pressing to form a third multi-point contact connection section.

[0019] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions:

[0020] (1) The width of the sealing portion between the first accommodating cavity and the second accommodating cavity is L4, and the width of the sealing portion between the third bag cavity and the fourth bag cavity is L5; L4 < L5;

[0021] (2) The strength of the sealing portion between the first accommodating cavity and the second accommodating cavity is Q4, and the strength between the third bag cavity and the fourth bag cavity is Q5; Q4 < Q5.

[0022] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions: (c1) 0.8mm ≤ L4 ≤ 1.2mm, (c2) L5 ≥ 7mm; and / or

[0023] The self-inflating cushioning bag satisfies at least one of the following conditions: (d1) 3N / 15mm≤Q4≤5N / 15mm, (d2) 13N / 15mm≤Q5≤15N / 15mm.

[0024] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions:

[0025] (1) The pressure sealing portion between the first accommodating cavity and the second accommodating cavity is formed by point pressing to form a fourth multi-point contact connection segment;

[0026] (2) The sealing part between the third bag cavity and the fourth bag cavity is fully pressed to form a second fully fitted connecting section.

[0027] In some embodiments, the self-inflating cushioning bag satisfies at least one of the following conditions:

[0028] (1) The sealing portion between the first accommodating cavity and the second accommodating cavity protrudes toward the interior of the third bag cavity;

[0029] (2) The edge of the protrusion is provided to contact the sealing portion between the first accommodating cavity and the second accommodating cavity.

[0030] In some embodiments, the edge of the bag body is provided with a sealing strip, and the sealing strip satisfies at least one of the following conditions:

[0031] (e1) The width of the edge banding strip is L0, where L0 ≥ 7 mm;

[0032] (e2) The strength of the edge banding strip is Q0, Q0≥20N / 15mm.

[0033] In some embodiments, the bag body includes a bag cavity, a portion of which is partitioned by a corresponding sealing portion to form a first bag cavity, a portion of which is partitioned by a corresponding sealing portion to form a second bag cavity, a portion of which is partitioned by a corresponding sealing portion to form a third bag cavity, and the remaining portion of the bag cavity to form a fourth bag cavity; wherein the first bag cavity and the second bag cavity are adjacent, and the first bag cavity and the second bag cavity are respectively separated from the third bag cavity by a portion of the fourth bag cavity; and / or

[0034] An isolation layer is provided between the first and second bag cavities and the fourth bag cavity. The isolation layer can isolate solids and liquids, and can allow gas to pass through.

[0035] The self-inflating cushioning bag of this application has a bag body and a solid containing bag. The bag body includes a sealed first bag cavity, a second bag cavity, a third bag cavity, and a fourth bag cavity separated by a pressure sealing portion. The first and second bag cavities are respectively used to contain a first liquid material and a first solid material that can react with each other to generate gas. Squeezing the first or second bag cavity releases the pressure sealing portion between the first and second bag cavities, thus establishing communication between them. The air pressure generated when the first and second bag cavities are connected can squeeze and release the pressure sealing portion between the first or second bag cavity and the fourth bag cavity, further establishing communication between them. Based on this device, a single press can completely connect the first, second, and fourth bag cavities, forming an air cushion and providing excellent cushioning. Simultaneously, the third bag cavity further... The sealed portion is further divided into a first and a second accommodating cavity. The solid accommodating bag has a third accommodating cavity and a protrusion extending from the third accommodating cavity. The protrusion of the solid accommodating bag is fixed in the second accommodating cavity, and the remaining portion (i.e., the third accommodating cavity) is located in the fourth accommodating cavity. The first and third accommodating cavities are used to accommodate a second liquid material and a second solid material that can react with each other to produce gas. By squeezing the first accommodating cavity, the sealing portion between the first and second accommodating cavities can be released to achieve communication between the first and second accommodating cavities. When the first and second accommodating cavities are connected, the second liquid material can penetrate into the third accommodating cavity through the attraction of the protrusion. By gradually penetrating and contacting the second solid material, it slowly reacts to produce gas, thus playing a slow gas replenishment role and achieving long-term buffering. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a self-inflating cushioning bag according to an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the structure of a self-inflating cushioning bag according to an embodiment of this application;

[0039] Figure 3 This is a cross-sectional schematic diagram of the sealing strip of a self-inflating cushioning bag according to an embodiment of this application;

[0040] Figure 4 This is a cross-sectional schematic diagram of the sealing strip of a self-inflating cushioning bag according to an embodiment of this application;

[0041] Figure 5 This is a cross-sectional schematic diagram of the sealing portion of a self-inflating cushioning bag according to an embodiment of this application;

[0042] Figure 6 This is a cross-sectional schematic diagram of the sealing portion of a self-inflating cushioning bag according to an embodiment of this application;

[0043] Figure label:

[0044] 1-Bag body; 11-First bag cavity; 12-Second bag cavity; 13-Third bag cavity; 131-First receiving cavity; 132-Second receiving cavity; 14-Fourth bag cavity; 101-First plastic film layer; 102-Second plastic film layer; 103-A side of the third plastic film layer; 104-B side of the third plastic film layer;

[0045] 2-Solid container bag; 21-Third container cavity; 22-Protrusion; 201-A side of the first nonwoven cotton fiber layer; 202-B side of the first nonwoven cotton fiber layer; 203-A side of the first nonwoven PE (or PP) fiber layer; 204-B side of the first nonwoven PE (or PP) fiber layer;

[0046] 3-Pressure sealing section; 31-First pressure sealing section; 311-First fully fitting connecting section; 312-First multi-point contact connecting section; 32-Second pressure sealing section; 321-Second multi-point contact connecting section; 33-Third pressure sealing section; 331-Third multi-point contact connecting section; 34-Fourth pressure sealing section; 341-Fourth multi-point contact connecting section; 35-Fifth pressure sealing section; 351-Second fully fitting connecting section; 352-Fifth multi-point contact connecting section;

[0047] 4-Gas-generating material; 41-First liquid material; 42-First solid material; 43-Second liquid material; 44-Second solid material;

[0048] 5-Isolation section; 50-Isolation layer; 501-A side of the first nonwoven fabric layer; 502-B side of the second nonwoven fabric layer. Detailed Implementation

[0049] The present application is further described below with reference to embodiments and examples. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the application. Furthermore, it should be understood that after reading the teachings of this application, those skilled in the art can make various alterations or modifications to this application, and these equivalent forms also fall within the protection scope of the appended claims.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] the term

[0052] Unless otherwise stated or in case of contradiction, the terms or phrases used herein shall have the following meanings:

[0053] The term "and / or" as used herein includes any one of two or more related listed items, as well as any and all combinations of the related listed items. These arbitrary and all combinations encompass any two related listed items, any more related listed items, or a combination of all related listed items. It should be noted that when at least three items are connected using at least two conjunctions selected from "and / or," "or / and," or "and / or," it should be understood that, in this application, the technical solution undoubtedly includes solutions connected by "logical AND," and also undoubtedly includes solutions connected by "logical OR." For example, "A and / or B" includes three parallel solutions: A, B, and A+B. For example, the technical solution of "A, and / or, B, and / or, C, and / or, D" includes any one of A, B, C, and D (that is, a technical solution that is connected by "logical OR"), as well as any and all combinations of A, B, C, and D, that is, combinations of any two or three of A, B, C, and D, and also combinations of all four of A, B, C, and D (that is, a technical solution that is connected by "logical AND").

[0054] In this document, terms such as "preferred," "better," and "more preferred" are merely descriptions of implementation methods or examples that achieve better results, and should be understood as not constituting a limitation on the scope of protection of this application.

[0055] In this application, terms such as "further," "even further," and "particularly" are used to describe purposes and indicate differences in content, but should not be construed as limiting the scope of protection of this application.

[0056] In this application, the terms "first," "second," "third," "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or quantity, nor should they be construed as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first," "second," "third," "fourth," etc., serve only as a non-exhaustive enumeration and should be understood not to constitute a closed limitation on quantity.

[0057] In this application, the technical features described in an open-ended manner include both closed technical solutions consisting of the listed features and open technical solutions that include the listed features.

[0058] In this application, numerical intervals (i.e., numerical ranges) are involved. Unless otherwise specified, optional numerical distributions within the aforementioned numerical intervals are considered continuous and include the two endpoints (i.e., the minimum and maximum values) of the numerical range, as well as every value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints. Furthermore, when multiple ranges are provided to describe features or characteristics, these ranges can be merged. In other words, unless otherwise specified, the ranges disclosed herein should be understood to include any and all subranges to which they are included.

[0059] In this application, weight can be a well-known unit of mass in the chemical industry, such as μg, mg, g, or kg.

[0060] One or more embodiments of this application provide a self-inflating cushioning bag that can be inflated without the need for special equipment or auxiliary tools such as power supply. It is simple to operate and can provide long-term cushioning, making it suitable for items that need to be transported or transferred over long distances.

[0061] The self-inflating cushioning bag of this application embodiment includes a bag body and a solid containing bag; the bag body includes a sealed first bag cavity, a second bag cavity, a third bag cavity and a fourth bag cavity separated by a compression sealing portion;

[0062] The first and second cavities are respectively used to contain a first liquid material and a first solid material that can react and generate gas when they come into contact with each other; by squeezing the first cavity, the pressure seal between the first and second cavities can be released to achieve communication between the first and second cavities; when the first and second cavities are connected, the gas pressure generated can squeeze and release the pressure seal between the first or second cavity and the fourth cavity to achieve communication between the first or second cavity and the fourth cavity;

[0063] The third cavity includes a sealed first accommodating cavity and a second accommodating cavity separated by a pressure sealing portion; the solid accommodating bag includes the third accommodating cavity and a protrusion extending from the third accommodating cavity; the protrusion is fixedly disposed within the second accommodating cavity; the first accommodating cavity and the third accommodating cavity are respectively used to accommodate a second liquid material and a second solid material that can react with each other to produce gas when in contact; by squeezing the first accommodating cavity, the pressure sealing portion between the first accommodating cavity and the second accommodating cavity can be released to achieve communication between the first accommodating cavity and the second accommodating cavity; when the first accommodating cavity and the second accommodating cavity are connected, the second liquid material can permeate into the third accommodating cavity through the attraction of the protrusion.

[0064] In the self-inflating cushioning bag of this application embodiment, although the air pressure generated after the first and second bag cavities are connected can squeeze and release the pressure sealing part between the first or second bag cavity and the fourth bag cavity, thus realizing the connection between the first or second bag cavity and the fourth bag cavity, it cannot release the pressure sealing part between the third and fourth bag cavities. This is because, on the one hand, the fourth bag cavity disperses the air pressure, resulting in a lower pressure, and on the other hand, the pressure sealing part between the third and fourth bag cavities has higher strength and cannot be released by squeezing.

[0065] In some embodiments, the width of the sealing portion between the first and second bags is L1, the width of the sealing portion between the first and fourth bags is L2, and the width of the sealing portion between the second and fourth bags is L3; L1 < L2, L1 < L3. Further, L1, L2, and L3 satisfy at least one of the following conditions: (a1) 0.8mm ≤ L1 ≤ 1.2mm, (a2) 2.5mm ≤ L2 ≤ 3.5mm, (a3) ​​2.5mm ≤ L3 ≤ 3.5mm.

[0066] In some embodiments, the strength of the compression seal between the first and second bags is Q1, the strength of the compression seal between the first and fourth bags is Q2, and the strength of the compression seal between the second and fourth bags is Q3; Q1 < Q2, Q1 < Q3. Further, Q1, Q2, and Q3 satisfy at least one of the following conditions: (b1) 3N / 15mm ≤ Q1 ≤ 5N / 15mm, (b2) 8N / 15mm ≤ Q2 ≤ 10N / 15mm, (b3) 8N / 15mm ≤ Q2 ≤ 10N / 15mm.

[0067] In some embodiments, a portion of the sealing portion between the first and second bags is formed by full compression to create a first fully fitted connecting segment, while another portion is formed by point compression to create a first multi-point contact connecting segment. Further, the sealing portion between the first and fourth bags is formed by point compression to create a second multi-point contact connecting segment. Further, L1 < L2 and / or Q1 < Q2.

[0068] In this embodiment, by setting the sealing part to different bonding forms and different strengths, it can be ensured that when the first bag cavity is squeezed, the sealing part between the first bag cavity and the second bag cavity can be released first, while the compression will not cause the release between the first bag cavity and the fourth bag cavity.

[0069] In some embodiments, the sealing portion between the second and fourth bags is formed by point pressing to create a third multi-point contact connection segment. Further, L1 < L3 and / or Q1 < Q3.

[0070] In this application, both "full-fit connection" and "multi-point contact connection" are fully sealed connections, which can block gas or liquid. The difference is that the sealing strength of the contact surface of "full-fit connection" is higher and more uniform, while in the contact surface of "multi-point contact connection", multiple points form a dot matrix and have high sealing strength, while the sealing strength of other positions is lower. These points are small protrusions made by the pressure sealing mold. The above-mentioned difference in sealing strength can be achieved by adjusting the heat sealing process parameters.

[0071] In this application, when describing the strength of a sealing portion, it generally refers to the minimum release strength of that sealing portion. For example, in some embodiments, a portion of the sealing portion between the first and second bags is formed by full compression to create a first fully fitted connecting segment, while another portion is formed by point compression to create a first multi-point contact connecting segment. It can be understood that since the strength of the first multi-point contact connecting segment is lower than that of the first fully fitted connecting segment, when releasing the sealing portion between the first and second bags by squeezing, it is only necessary to release the first multi-point contact connecting segment to achieve communication between the first and second bags. Therefore, when describing the strength of the sealing portion between the first and second bags as Q1, it refers to the strength of the first multi-point contact connecting segment being Q1.

[0072] In the self-inflating cushioning bag of this application embodiment, after the compression sealing part between the first accommodating cavity (one of the sealed cavities formed by the compression sealing part of the third bag cavity) and the second accommodating cavity (the other sealed cavity formed by the compression sealing part of the third bag cavity) is released by squeezing, the second liquid material in the first accommodating cavity can fill the entire third bag cavity but cannot flow further into the fourth bag cavity. Since the protrusion of the solid accommodating bag is fixedly disposed in the second accommodating cavity of the third bag cavity, it can contact the second liquid material and attract and penetrate the second liquid material into the third accommodating cavity (a part of the solid accommodating bag, located in the fourth bag cavity), thereby realizing the contact between the second liquid material and the second solid material.

[0073] In this embodiment of the application, the protrusion of the solid containment bag extends from the third containment cavity and is fixed in the second containment cavity (the third bag cavity is one of the sealed cavities formed by the pressure sealing part). This means that the position of the third containment cavity is fixed relative to the third bag cavity, ensuring that the second liquid material can come into contact with the second solid material to generate gas after being attracted and permeated.

[0074] In this embodiment, the portion between the protrusion of the solid containing bag and the third containing cavity is separated by the compression sealing portion between the third and fourth bag cavities, forming a sealed third containing cavity.

[0075] In some embodiments, in order to achieve the effect that the third bag cavity is always sealed but the second liquid material can permeate (the second liquid material in the first accommodating cavity can fill the entire third bag cavity but cannot flow further into the fourth bag cavity, and the second liquid material can permeate into the third accommodating cavity through the attraction of the protrusion), the solid accommodating bag adopts a multi-layer composite structure.

[0076] In this embodiment, since the second liquid material slowly permeates through the attraction of the protrusion, it is understandable that the second liquid material needs a long time to fully permeate and come into full contact with the second solid material. Therefore, the process of the second liquid material and the second solid material coming into contact to react and generate gas takes a long time and the gas generation rate is slow, thus achieving the effect of slow gas replenishment.

[0077] In some embodiments, the second solid material includes an adhesive and at least one of citric acid and sodium bicarbonate;

[0078] The second solid material is a powder block, and the preparation method of the powder block includes the following steps:

[0079] The second solid material is ground and then placed into a block mold for pressing to obtain powder blocks.

[0080] Optionally, the pressing pressure can be 15kg~25kg, and the pressing time can be 4s~6s.

[0081] In this embodiment, since the adhesive is an inert material with adhesive properties, a dense powder structure can be formed by grinding and dispersing the second solid material containing the adhesive evenly and then pressing it into powder blocks, which can effectively reduce the reaction rate.

[0082] Preferably, the second solid material includes at least 40% binder, which can effectively reduce the reaction rate without affecting the normal gas replenishment function.

[0083] In some embodiments, the width of the sealing portion between the first accommodating cavity and the second accommodating cavity is L4, and the width of the sealing portion between the third bag cavity and the fourth bag cavity is L5; L4 < L5. Further, L4 and L5 satisfy at least one of the following conditions: (c1) 0.8mm ≤ L4 ≤ 1.2mm, (c2) L5 ≥ 7mm.

[0084] In some embodiments, the strength of the sealing portion between the first accommodating cavity and the second accommodating cavity is Q4, and the strength between the third bag cavity and the fourth bag cavity is Q5; Q4 < Q5. Further, Q4 and Q5 satisfy at least one of the following conditions: (d1) 3N / 15mm ≤ Q4 ≤ 5N / 15mm, (d2) 13N / 15mm ≤ Q5 ≤ 15N / 15mm.

[0085] In some embodiments, the sealing portion between the first and second accommodating cavities is formed by point pressing to create a fourth multi-point contact connection segment, and the sealing portion between the third and fourth accommodating cavities is formed by full pressing to create a second fully fitted connection segment. Further, L4 < L5 and / or Q4 < Q5.

[0086] In some embodiments, the sealing portion between the first accommodating cavity and the second accommodating cavity protrudes toward the interior of the third bag cavity, and the edge of the protrusion contacts the sealing portion between the first accommodating cavity and the second accommodating cavity.

[0087] In this embodiment, after the pressure sealing portion between the first accommodating cavity and the second accommodating cavity is released, the edge of the protrusion can come into more full contact with the second liquid material, so that the second liquid material can be better absorbed and permeated.

[0088] In some embodiments, the edges of the bag are provided with sealing strips to achieve overall sealing of the bag.

[0089] In some embodiments, the width of the edge banding strip is L0, where L0 ≥ 7 mm.

[0090] In some embodiments, the strength of the edge banding strip is Q0, where Q0 ≥ 20 N / 15 mm.

[0091] In some embodiments, the bag body includes a bag cavity, a portion of which is divided by a corresponding sealing portion to form a first bag cavity, a portion of which is divided by a corresponding sealing portion to form a second bag cavity, a portion of which is divided by a corresponding sealing portion to form a third bag cavity, and the remaining portion of the bag cavity to form a fourth bag cavity; wherein the first bag cavity and the second bag cavity are adjacent to each other, and the first bag cavity and the second bag cavity are respectively separated from the third bag cavity by a portion of the fourth bag cavity.

[0092] In some embodiments, an isolation layer is provided between the first and second bags and the fourth bag, the isolation layer being able to isolate solids and liquids while allowing gas to pass through.

[0093] In some embodiments, in order to achieve the effect that the above-mentioned isolation layer can isolate solids and liquids while allowing gas to pass through, the bag body adopts a multi-layer composite structure.

[0094] In this application, the first cavity and the second cavity are respectively used to contain the first liquid material and the first solid material. It can be understood that the first liquid material and the first solid material can exist stably when they are not in contact. Only when the first cavity and the second cavity are connected and the first liquid material and the first solid material come into contact with each other can they react to produce gas.

[0095] In some embodiments, the first liquid material includes at least a reaction solvent (such as water), which is fluid so that squeezing the first bag cavity can conveniently apply pressure to the sealing portion between the first and second bag cavities to achieve release.

[0096] In some embodiments, the first liquid material and the first solid material are each a part of the first gas-generating material, and the first gas-generating material includes water, citric acid, and sodium bicarbonate. In this embodiment, the first liquid material is water, the first solid material is a mixture of citric acid and sodium bicarbonate, or the first liquid material is an aqueous solution of citric acid and the first solid material is sodium bicarbonate, or the first liquid material is an aqueous solution of sodium bicarbonate and the first solid material is citric acid; other cases will not be listed one by one.

[0097] In this application, the first accommodating cavity and the third accommodating cavity are respectively used to accommodate the second liquid material and the second solid material. It can be understood that the second liquid material and the second solid material can exist stably when they do not come into contact. Only when the first accommodating cavity and the second accommodating cavity are connected, and the second liquid material is attracted and permeated into the third accommodating cavity by the protrusion and comes into contact with the second solid material, can it react to produce gas.

[0098] In some embodiments, the second liquid material includes at least a reaction solvent (such as water), which is fluid, so that squeezing the first accommodating cavity can conveniently apply pressure to the sealing portion between the first and second accommodating cavities to achieve release.

[0099] In some embodiments, the second liquid material and the second solid material are each a part of the second gas-generating material, which includes water, citric acid, sodium bicarbonate, and a binder. In this embodiment, the second solid material includes the binder, and the remaining components can be combined arbitrarily as long as they meet the above requirements. For example, the second liquid material can be a mixture of water, the second solid material can be a mixture of citric acid, sodium bicarbonate, and the binder; the second liquid material can be an aqueous solution of citric acid, the second solid material can be a mixture of sodium bicarbonate and the binder; or the second liquid material can be an aqueous solution of sodium bicarbonate, the second solid material can be a mixture of citric acid and the binder. Other cases will not be listed one by one.

[0100] The following are some specific examples.

[0101] For experimental parameters not specified in the following specific embodiments, please refer to the guidelines given in this application document first, or refer to experimental manuals or other experimental methods known in the art, or refer to the experimental conditions recommended by the manufacturer.

[0102] The raw materials and reagents involved in the following specific embodiments can be obtained commercially or prepared by those skilled in the art using known methods.

[0103] Example 1

[0104] This embodiment provides a self-inflating cushioning bag according to this application:

[0105] like Figures 1-4 As shown, a self-inflating cushioning bag includes a bag body 1 and a solid containing bag 2. The bag body 1 is divided into a first bag cavity 11, a second bag cavity 12, a third bag cavity 13, and a fourth bag cavity 14 by a sealing portion 3. The third bag cavity 13 is divided into a first containing cavity 131 and a second containing cavity 132 by the sealing portion 3. The solid containing bag 2 includes a third containing cavity 22 and a protrusion 21 extending from the third containing cavity.

[0106] like Figure 1 , 3 As shown, the first sealing portion 31 between the first pocket cavity 11 and the second pocket cavity 12 includes a first fully fitting connecting section 311 and a first multi-point contact connecting section 312; the second sealing portion 32 between the first pocket cavity 11 and the fourth pocket cavity 14 includes a second multi-point contact connecting section 321; the third sealing portion 33 between the second pocket cavity 12 and the fourth pocket cavity 14 includes a third multi-point contact connecting section 331; and the fifth sealing portion 35 between the third pocket cavity 13 and the fourth pocket cavity 14 includes a second fully fitting connecting section 351 and a fifth multi-point contact connecting section 352.

[0107] like Figure 1 , 4As shown, the fourth sealing portion 34 between the first accommodating cavity 131 and the second accommodating cavity 132 includes a fourth multi-point contact connection section 341.

[0108] like Figure 1 , 2 As shown in Figure 5, the first cavity 11 and the second cavity 12 are respectively used to contain a first liquid material 41 and a first solid material 42 that can react with each other to produce gas; the first accommodating cavity 131 and the third accommodating cavity 132 are respectively used to contain a second liquid material 43 and a second solid material 44 that can react with each other to produce gas.

[0109] like Figure 1 , 6 As shown ( Figure 6 (The first liquid material 41 and the second liquid material 42 are not labeled). An isolation section 5 is provided between the first bag cavity 11, the second bag cavity 12, and the fourth bag cavity 14, respectively. The isolation section 5 is composed of an isolation layer 50. The cross-section of the sealing strip at the edge of the bag body 1 where the isolation layer 50 is located is shown below. Figure 6 As shown in the cross-sectional view along line A-A', the structure consists of a multi-layer composite layer, including a first plastic film layer 101, an A-side 501 of a first non-woven fabric layer, an A-side 103 of a third plastic film layer, a B-side 104 of a third plastic film layer, a B-side 502 of a first non-woven fabric layer, and a second plastic film layer 102. Based on the above structure, the following is a method for manufacturing the self-inflating cushioning bag of this embodiment: a first liquid material 41 is filled between the A-side 103 and the B-side 104 of the third plastic film layer, and a first bag cavity 11 is formed by compression sealing. Then, a first solid material 42 is filled between the A-side 501 and the B-side 502 of the first composite non-woven fabric layer, and a second bag cavity 12 is formed by compression sealing.

[0110] like Figure 1 , 3 As shown in Figures 4 and 6, the fifth multi-point contact connecting section 352 in the fifth sealing portion 35 between the third bag cavity 13 and the fourth bag cavity 14 also serves to separate the protrusion 21 of the solid containing bag 2 and the third containing cavity 22 in this structure. Its cross-sectional view is shown in Figure 6. Figure 6The cross-sectional view along line B-B' shows a multi-layered composite structure, including a first plastic film layer 101, a first non-woven cotton fiber layer (A side 201), a first non-woven PE (or PP) fiber layer (A side 203), a first non-woven PE (or PP) fiber layer (B side 204), a first non-woven cotton fiber layer (B side 202), and a second plastic film layer 102. Based on the above structure, the following is one method for manufacturing the self-inflating cushioning bag of this embodiment: Take a fiber layer-PE (or PP) fiber layer composite non-woven cotton, fold it, and seal both sides to form a bag structure with one open end (the inner side of the bag structure is composite non-woven PE (or PP)). The outer layer is a composite nonwoven cotton fiber layer, and the PE or PP fiber layer is in the form of nonwoven fabric that can be permeated by liquid and can also be sealed by pressure. The second solid material is put into the bag, pressed, and the edges are cut to form a protrusion to obtain a solid containing bag 2. The solid containing bag 2 is put into the bag body 1, and then a fifth pressure sealing part 35 is formed by pressure sealing (which also serves to fix the protrusion in the third bag cavity 13). A fourth pressure sealing part 34 is formed by pressure sealing along the edge of the protrusion. After the second liquid material is put between the first composite plastic film layer 101 and the second composite plastic film layer 102, a sealing strip is formed by pressure sealing to form the third bag cavity 13.

[0111] In this embodiment, the bag body 1 is 245mm long and 180mm wide, and is made of PA / PE material. The dimensions of the first bag cavity 11 are 58.5mm long and 47.0mm wide, the dimensions of the second bag cavity 12 are 47mm on each side (square), the dimensions of the third bag cavity 13 are 58.5mm long and 47.0mm wide, and the dimensions of the solid material package are 52mm long and 43mm wide. The width of the sealing strip on the edge of the bag body 1 is 7mm, and the strength of the sealing strip Q0 ≥ 20N / 15mm.

[0112] The width of the first sealing part 31 is 1mm; the strength of the first fully fitted connecting section 311 is 9N / 15mm; the strength of the first multi-point contact connecting section 312 is 4N / 15mm; the width of the second sealing part 32 is 3mm; the strength of the second multi-point contact connecting section 321 is 9N / 15mm; the width of the third sealing part 33 is 3mm; the strength of the third multi-point contact connecting section 331 is 9N / 15mm; the width of the fourth sealing part 34 is 1mm; the strength of the fourth multi-point contact connecting section 341 is 4N / 15mm; the width of the fifth sealing part 35 is 7mm; the strength of the second fully fitted connecting section 351 is ≥20N / 15mm; and the strength of the fifth multi-point contact connecting section 352 is 15N / 15mm.

[0113] All references to this application are incorporated herein by reference as if each document were individually incorporated herein by reference. Unless they conflict with the purpose and / or technical solution of this application, all cited references are incorporated herein by reference in their entirety and for all purposes. When references are cited in this application, the definitions of relevant technical features, terms, nouns, phrases, etc., are also incorporated herein by reference. Examples and preferred embodiments of the cited technical features may also be incorporated herein by reference, but only to the extent that they enable the implementation of this application. It should be understood that when the cited content conflicts with the description in this application, this application shall prevail or modifications shall be made adaptably to the description in this application.

[0114] The technical features of the above-described embodiments and examples can be combined in any suitable manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments and examples are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0115] The embodiments described above merely illustrate several implementation methods of this application and should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Furthermore, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this application, and the equivalent forms obtained also fall within the protection scope of this application. It should also be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the protection scope of the appended claims. Therefore, the protection scope of this patent application should be determined by the appended claims, and the specification can be used to interpret the content of the claims.

Claims

1. A self-inflating cushion characterized by, The self-inflating cushion bag comprises a bag body and a solid accommodating bag; The bag body is separated by a pressure seal part into a sealed first bag cavity, a second bag cavity, a third bag cavity and a fourth bag cavity; The first bag cavity and the second bag cavity are respectively used for accommodating a first liquid material and a first solid material which can contact each other to produce gas; The pressure seal part between the first bag cavity and the second bag cavity is released by extruding the first bag cavity to realize the communication between the first bag cavity and the second bag cavity; The gas pressure produced after the communication between the first bag cavity and the second bag cavity can extrude and release the pressure seal part between the first bag cavity or the second bag cavity and the fourth bag cavity to realize the communication between the first bag cavity or the second bag cavity and the fourth bag cavity; The third bag cavity is separated by a pressure seal part into a sealed first accommodating cavity and a second accommodating cavity; the solid accommodating bag comprises a third accommodating cavity and a protruding part formed by extending from the third accommodating cavity; the protruding part is fixedly arranged in the second accommodating cavity; the first accommodating cavity and the third accommodating cavity are respectively used for accommodating a second liquid material and a second solid material which can contact each other to produce gas; the pressure seal part between the first accommodating cavity and the second accommodating cavity is released by extruding the first accommodating cavity to realize the communication between the first accommodating cavity and the second accommodating cavity; after the communication between the first accommodating cavity and the second accommodating cavity, the second liquid material can penetrate into the third accommodating cavity through the attraction of the protruding part.

2. The self-inflating cushion of claim 1, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (1) the width of the pressure seal part between the first bag cavity and the second bag cavity is L1, the width of the pressure seal part between the first bag cavity and the fourth bag cavity is L2, and the width of the pressure seal part between the second bag cavity and the fourth bag cavity is L3; L1 (2) the strength of the pressure seal part between the first bag cavity and the second bag cavity is Q1, the strength of the pressure seal part between the first bag cavity and the fourth bag cavity is Q2, and the strength of the pressure seal part between the second bag cavity and the fourth bag cavity is Q3; Q1 3. The self-inflating cushion of claim 2, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (a1) 0.8mm≤L1≤1.2mm, (a2) 2.5mm≤L2≤3.5mm, (a3) 2.5mm≤L3≤3.5mm; and / or The self-inflating cushion bag satisfies at least one of the following conditions: (b1) 3N / 15mm≤Q1≤5N / 15mm, (b2) 8N / 15mm≤Q2≤10N / 15mm, (b3) 8N / 15mm≤Q2≤10N / 15mm.

4. The self-inflating cushion according to any one of claims 1 to 3, characterized in that The self-inflating cushion bag satisfies at least one of the following conditions: (1) part of the position of the pressure seal part between the first bag cavity and the second bag cavity adopts full pressure bonding to form a first full bonding connection section, and another part of the position adopts point pressure bonding to form a first multi-point contact connection section; (2) the pressure seal part between the first bag cavity and the fourth bag cavity adopts point pressure bonding to form a second multi-point contact connection section; (3) The point-pressing part between the second bag cavity and the fourth bag cavity forms a third multi-point contact connection section.

5. The self-inflating cushion of claim 1, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (1) The width of the pressing part between the first accommodating cavity and the second accommodating cavity is L4, and the width of the pressing part between the third bag cavity and the fourth bag cavity is L5; L4 < L5; (2) The strength of the pressing part between the first accommodating cavity and the second accommodating cavity is Q4, and the strength of the pressing part between the third bag cavity and the fourth bag cavity is Q5; Q4 < Q5.

6. The self-inflating cushion of claim 5, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (c1) 0.8mm≤L4≤1.2mm, (c2) L5≥7mm; and / or The self-inflating cushion bag satisfies at least one of the following conditions: (d1) 3N / 15mm≤Q4≤5N / 15mm, (d2) 13N / 15mm≤Q5≤15N / 15mm.

7. The self-inflating cushion as in any of claims 1-3, 5-6, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (1) The pressing part between the first accommodating cavity and the second accommodating cavity forms a fourth multi-point contact connection section by point pressing; (2) The pressing part between the third bag cavity and the fourth bag cavity forms a second full-laminated connection section by full pressing.

8. The self-inflating cushion as in any of claims 1-3, 5-6, wherein, The self-inflating cushion bag satisfies at least one of the following conditions: (1) The pressing part between the first accommodating cavity and the second accommodating cavity protrudes towards the inside of the third bag cavity; (2) The edge of the protruding part is in contact with the pressing part between the first accommodating cavity and the second accommodating cavity.

9. The self-inflating cushion as in any of claims 1-3, 5-6, wherein, The edge of the bag body is provided with an edge sealing strip, and the edge sealing strip satisfies at least one of the following conditions: (e1) The width of the edge sealing strip is L0, and L0≥7mm; (e2) The strength of the edge sealing strip is Q0, and Q0≥20N / 15mm.

10. The self-inflating cushion as in any of claims 1-3, 5-6, wherein, The bag body includes a bag cavity, a part of the bag cavity is separated by the corresponding pressing part to form the first bag cavity, a part of the bag cavity is separated by the corresponding pressing part to form the second bag cavity, and a part of the bag cavity is separated by the corresponding pressing part to form the third bag cavity. The remaining part of the bag cavity forms the fourth bag cavity; wherein the first bag cavity and the second bag cavity are adjacent, and the first bag cavity and the second bag cavity are respectively arranged by part of the fourth bag cavity and the third bag cavity; and / or An isolation layer is arranged between the first bag cavity, the second bag cavity and the fourth bag cavity, and the isolation layer can isolate solids and liquids and can permeate gas.

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