KR20240048653A - Buffer packaging article using air layer and method for preparing the same - Google Patents

Abstract

A packaging article and a method of manufacturing the same are provided, which improve cushioning properties by using an air layer while simultaneously preventing shaking of the packaged article and firmly fixing it. The cushioned packaging article includes a shell film layer including an upper layer and a lower layer connected to each other; and an inner skin film layer disposed between the upper and lower layers of the outer skin film layer, comprising an upper layer and a lower layer connected to each other, and interposing an air layer between the outer skin film layer and the inner skin film layer. One end of the first direction together forms a first fusion portion, and the other end of the outer shell film layer and the inner shell film layer in the first direction together form a second fusion portion.

Description

Buffered packaging article using air layer and method of manufacturing the same {BUFFER PACKAGING ARTICLE USING AIR LAYER AND METHOD FOR PREPARING THE SAME}

The present invention relates to cushioned packaging articles. In detail, it relates to a packaging article and a method of manufacturing the same that can improve the cushioning properties by using an air layer while simultaneously preventing the shaking of the packaged article and firmly fixing it. More specifically, it concerns a method of preserving and transporting the product in its original form as produced.

The distribution industry has been growing rapidly recently, thanks to advancements in logistics technology and online purchase order processing management technology. Accordingly, online distribution companies are continuously introducing differentiated delivery strategies compared to existing logistics delivery, such as early morning delivery and rocket delivery. In addition, non-face-to-face technology, which has previously received attention, has experienced explosive growth due to coronavirus infection-19 (COVID-19), and greater growth is expected in the future.

In general, delivered goods ordered online are delivered from the producer, seller, or consignor to the buyer by means such as courier. According to data released by the Ministry of Land, Infrastructure and Transport of the Republic of Korea, the volume of parcel delivery in Korea in 2019 is approximately 2.8 billion and is estimated to reach approximately 3.3 billion in 2020. Recently, the demand for parcel delivery has been increasing rapidly. It is being analyzed.

KR 20-0235839 Y1 KR 20-0307704 Y1 KR 20-0282230 Y1

Conventionally, paper boxes made of corrugated cardboard are mainly used as delivery boxes. However, paper boxes are mostly produced in standardized formats and do not reflect the size of the goods being packaged (or the goods being delivered). If the packaged item is not fully secured due to the difference between the space inside the delivery box and the size of the packaged item, damage to the item may occur during delivery. To prevent this, items to be packaged are wrapped with air caps or airbags, or cushioning materials are placed in the remaining space inside the delivery box.

However, this method generates significant plastic waste. In addition, the use of delivery boxes that are excessively large compared to the actual size of the goods to be packaged causes an unnecessary increase in logistics volume. In other words, the number of parcels that a courier delivery vehicle can load at one time is limited, and an increase in logistics volume leads to a decrease in the number of parcels loaded on the vehicle, which reduces delivery efficiency and requires additional transportation, leading to environmental pollution and carbon emissions. This causes an increase in emissions.

Meanwhile, in order to solve the above problem, attempts are being made to wrap and deliver the goods in packaging materials called airbags or airpacking, rather than using paper delivery boxes. Air packing is known to be manufactured using Linear Low-Density Polyethylene (LLDPE) and nylon. Air packing has a very thick layer of air between tough films made of polyethylene and/or nylon, so delivery stability is relatively high even if it is delivered without being wrapped in a paper box.

However, air packing is generally filled with air and delivered to logistics companies, but has the problem of being very bulky and taking up a significant amount of space. In other words, in addition to the warehouse for storing the goods to be packaged, there is a problem that a separate warehouse is needed to store the air packing used to pack the goods to be packaged.

In addition, attempts are being made to improve the packaging efficiency of packaging items through various methods such as Patent Document 1 to Patent Document 3, but it is still not possible to replace delivery boxes made of paper.

Accordingly, the problem to be solved by the present invention is to provide a buffered packaging product that has high packaging stability and can minimize the occurrence of environmental pollution. In addition, from the perspective of a logistics company, the cost, space, and work time required for the packaging process can be reduced, and cushioning packaging products can be provided to prevent damage to the products.

Another problem to be solved by the present invention is to provide a method of manufacturing the above packaging article.

Another problem to be solved by the present invention is to provide a packaging article manufacturing apparatus used for manufacturing the above packaging articles.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A cushioning packaged article according to an embodiment for solving the above problem includes an outer shell film layer including an upper layer and a lower layer connected to each other; and an inner skin film layer disposed between the upper and lower layers of the outer skin film layer, comprising an upper layer and a lower layer connected to each other, and interposing an air layer between the outer skin film layer and the inner skin film layer. One end of the first direction together forms a first fusion portion, and the other end of the outer shell film layer and the inner shell film layer in the first direction together form a second fusion portion.

In a cross section cut in the first direction, the upper and lower layers of the outer skin film layer and the upper and lower layers of the inner skin film layer may be connected through a first fusion portion and a second fusion portion.

Additionally, in a cross section cut in a second direction crossing the first direction, the outer skin film layer and the inner skin film layer may be spaced apart to form the air layer.

The outer shell film layer and the inner shell film layer may be physically separated from each other except for the first fusion portion and the second fusion portion.

At this time, the first internal space formed by the outer skin film layer, the inner skin film layer, the first fusion part, and the second fusion part may be sealed to form the air layer.

Additionally, the second internal space formed by the upper and lower layers of the endothelial film layer, the first fused portion, and the second fused portion may be sealed and separated from the external space.

A cushioning packaged product according to another embodiment of the present invention for solving the above problems includes a tubular-shaped shell tube with one end and the other end in a first direction closed; a tubular-shaped endothelial tube disposed within the outer tube, and having one end and the other end in the first direction closed; and an article to be packaged disposed within the endothelial tube, wherein the one end and the other end of the outer tube are fused together with the one end and the other end of the endothelial tube, respectively.

A method of manufacturing a packaging article according to an embodiment of the present invention to solve the above other problems is a tubular-shaped shell tube, which prepares a shell tube of a shape extending in the longitudinal direction and a tubular-shaped shell tube. As an endothelial tube, prepare an endothelial tube disposed inside the outer tube, cut the outer tube and the endothelial tube at a predetermined position in the longitudinal direction to form the other end, and insert the article to be packaged into the inner tube. , solidifying by vacuum, suctioning and injecting air into the space between the outer shell tube and the inner tube, and fusing one end and the other end of the outer tube and the inner tube.

A method of manufacturing a packaging article according to another embodiment of the present invention to solve the above other problems is a tubular-shaped shell tube, which prepares a shell tube of a shape extending in the longitudinal direction and a tubular-shaped shell tube. As an endothelial tube, prepare an endothelial tube disposed inside the outer tube, fuse one end of the outer tube and the inner tube in the longitudinal direction, cut the outer tube and the endothelial tube at a predetermined position in the longitudinal direction, and form the outer tube. Forming the other end of the tube and the endothelial tube, inserting the article to be packaged into the endothelial tube through the opening of the longitudinal other end of the cut endothelial tube, and vacuuming the space between the cut outer tube and the endothelial tube. It includes injecting air into the space and fusing the cut outer tube and the other longitudinal end of the inner tube.

An apparatus for manufacturing a packaging article according to an embodiment of the present invention for solving the above-mentioned another problem includes an unwinding roll unit from which a tube roll including a tubular-shaped outer tube and an inner tube disposed within the outer tube is unwound; a cutter unit configured to cut a predetermined position in the longitudinal direction of the tube unwound from the unwinding roll unit; A fusion unit configured to heat-seal an end of the tube cut by the cutter in the longitudinal direction; and an air injection unit and an air vacuum unit configured to inject air into the tube cut by the cutter.

Specific details of other embodiments are included in the detailed description.

According to embodiments of the present invention, a cushioned packaging article with excellent packaging stability can be provided in a relatively simple method. In other words, even if it is severely shaken or external force is applied during the delivery process, the air-filled buffer layer can be stably maintained and damage to the packaged goods can be minimized.

In addition, the size and weight of the cushioned packaging items being delivered can be reduced, which is environmentally friendly, and makes it easier to separate and recycle the materials of the packaging items after delivery.

In addition, the company's image logo can be freely printed, and the design and launch of special products as needed can be carried out confidentially and quickly.

Since it can be given in a variety of sizes and shapes, a groundbreaking change can be attempted from the existing box-shaped, simplified and uniform design, which can increase the value of the product, enhance the value image of the product delivery company, and increase the satisfaction of consumers receiving it.

In addition, when delivering parcels by drone, safety accidents can be reduced even if the delivered parcel falls, and unlike boxes made of paper, the parcel can be prevented from being damaged even in environments such as rain.

Effects according to embodiments of the present invention are not limited to the contents exemplified above, and further various effects are included in the present specification.

1 is a cross-sectional view of a packaged article according to a comparative example of the present invention.
Figure 2 is a projected perspective view of a packaged article according to one embodiment of the present invention.
FIG. 3 is a cross-sectional view of the packaged article of FIG. 2 cut in a first direction.
FIG. 4 is a cross-sectional view of the packaged article of FIG. 2 cut in a second direction.
Figure 5 is a flowchart showing a method of manufacturing a packaged article according to an embodiment of the present invention.
Figure 6 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention.
Figure 7 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 6.
Figures 8 to 11 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 6.
Figure 12 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention.
Figure 13 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 12.
Figures 14 to 18 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 12.
Figure 19 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention.
Figure 20 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 19.
Figures 21 to 25 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 19.
Figure 26 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention.
Figures 27 to 31 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 26.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms, and only the embodiments serve to ensure that the disclosure of the present invention is complete, and those skilled in the art It is provided to fully inform the person of the scope of the invention, and the present invention is only defined by the scope of the claims. That is, various changes may be made to the embodiments presented by the present invention. The embodiments described below are not intended to limit the embodiments, but should be understood to include all changes, equivalents, and substitutes therefor.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms such as 'above', 'upper', 'on', 'below', 'beneath', and 'lower' are used in the drawing. As shown, it can be used to easily describe the correlation between one element or component and other elements or components. Spatially relative terms should be understood as terms that include different directions of the element when used in addition to the direction shown in the drawings. For example, when an element shown in a drawing is turned over, an element described as 'below or beneath' another element may be placed 'above' the other element. Accordingly, the illustrative term 'down' may include both downward and upward directions.

As used herein, 'and/or' includes each and every combination of one or more of the mentioned items. Additionally, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, 'comprises' and/or 'comprising' do not exclude the presence or addition of one or more other components in addition to the mentioned components. The numerical range expressed using 'to' indicates a numerical range that includes the values written before and after it as the lower limit and upper limit, respectively. ‘About’ or ‘approximately’ means a value or numerical range within 20% of the value or numerical range stated thereafter.

In this specification, when referring to components, ordinal modifiers such as 'first component', 'second component', '1-1 component', etc. are used to distinguish one component from another component. It just happens. Accordingly, the first component referred to below may be referred to as the second component within the scope of the technical idea of the present invention. For example, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Additionally, of course, what is referred to as a first component in the description of the invention may be referred to as a second component in the claims.

Additionally, the first direction (X) refers to an arbitrary direction within the plane, and the second direction (Y) refers to another direction that intersects or is perpendicular to the first direction (X) within the plane. The third direction (Z) refers to another direction that intersects or is perpendicular to the plane. Unless otherwise defined, in this specification, 'plane viewpoint' means a viewpoint looking at the plane to which the first direction (X) and the second direction (Y) belong.

The size, thickness, width, length, etc. of components shown in the drawings may be exaggerated or reduced for convenience and clarity of explanation, so the present invention is not limited to the form shown.

Figure 1 is a cross-sectional view of a packaged article according to a comparative example of the present invention. Figure 1a shows the state before injecting air to the extent of fixing the position of the article to be packaged, and Figure 1b shows the state before injecting air to the extent of fixing the position of the article to be packaged. This shows a state in which air is injected to a sufficient degree, and Figure 1c shows when the packaged article is shaken. Figure 1 shows a comparative example implemented by the inventor of the present invention with reference to the technical idea disclosed in the prior art, and of course, the comparative example disclosed in Figure 1 should not be immediately recognized as prior art.

First, referring to FIG. 1A, the packaging article 10' according to the comparative example of the present invention includes an outer wall portion 100' and an inner wall portion 200' connected to each other, and one side (right side in FIG. 1A) has an opening 10p. ) is the shape.

A sealed first internal space (S1) is formed between the outer wall portion (100') and the inner wall portion (200'), and the first inner space (S1) is filled with air to provide a buffering function. Additionally, an article to be packaged (or an object to be packaged) 400 is disposed in the second internal space S2 between the inner wall portions 200' facing each other. The packaging object 400 is introduced into the second internal space S2 through the opening 10p. Therefore, the second internal space S2 is connected to the external space through the opening 10p. Figure 1a illustrates a case where opposing walls surrounding the opening 10p are in contact, but the facing walls may be spaced apart from each other. The packaging object 400 as shown in FIG. 1A is also called so-called air packing.

Some prior arts, such as Patent Document 1, disclose the idea of further injecting air into the first internal space (S1) to bring the inner wall portion (200') into close contact with the article to be packaged (400). However, after numerous experiments, the inventor of the present invention confirmed that such packaging products were difficult to implement and completed the present invention.

When air is injected into the first internal space (S1), the inner wall portion (200') is intended to swell inward and come into close contact with the packaging object 400 due to an increase in pressure in the first inner space (S1), but the inner wall portion (200') At the same time as the part 200' expands to the inside, the outer wall part 100' swells to the outside. In particular, beyond a certain point after the inner wall portion 200' touches the packaging object 400, the extent to which the outer wall portion 100' swells outward becomes greater than the inner wall portion 200' swells inward. do. That is, even if air is injected into the first internal space (S1) of the packaging article 400 as shown in FIG. 1A, it is difficult to firmly fix the packaging article 400 and there is a problem in that the exterior size cannot be implemented consistently.

To solve this problem, it may be considered to form the outer wall portion 100' and the inner wall portion 200' from different materials. Although forming the outer wall portion 100' and the inner wall portion 200' from different materials is not easy to implement, the outer wall portion 100' has its shape despite the increase in pressure in the first internal space S1. A case in which air is injected into the first internal space S1 using a material with a small degree of change and a large degree of shape change in the inner wall portion 200' is shown in FIG. 1b.

That is, in FIG. 1B, the outer wall portion 100' uses a robust material that expands and deforms only to a predetermined shape, and the inner wall portion 200' uses a flexible material that expands and expands so that the first internal space S1 can maintain atmospheric pressure. material was used. FIG. 1C shows a case where the packaged article 10' as shown in FIG. 1B is shaken during delivery.

Referring to FIGS. 1B and 1C, the inner wall portion 200' can be brought into close contact with the article 400 to be packaged, as disclosed in some prior arts. However, if the article to be packaged 400 has a predetermined weight, or if an external force is applied to the article to be packaged 400 during the delivery process, or if the article to be packaged 400 is shaken, the first internal space S1 Pressure is applied to. At this time, since the outer wall portion 100' was intended to not substantially change its shape even if the pressure of the first inner space S1 increased, the pressure of the first inner space S1 was increased by the inner wall portion 200'. This leads to a change in shape. For example, as shown in FIG. 1C, the weight of the article to be packaged 400 presses the inner wall portion 200' supporting the article to be packaged 400 downward, and the inner wall portion 200' sags downward. At this time, the air layer between the inner wall portion 200' and the outer wall portion 100' on the lower side of the article to be packaged 400 becomes shallow and no longer provides a buffering function.

The problem of the comparative example described in FIGS. 1 above is that the outer wall portion 100' and the inner wall portion 200' are composed of a single film connected, and the first inner space S1 is a space that is sealed and separated from the outer space. However, the second internal space S2 is not sealed and is fluidly connected to the external space, resulting in the absence of a reference point for firmly holding the packaging object 400 and fixing its position. It's a problem. Based on the recognition of the above problem, the inventor of the present invention came to complete the present invention.

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

Figure 2 is a projected perspective view of a packaged article according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of the packaged article of FIG. 2 cut in a first direction, and is a cross-sectional view cut in the first direction from a central position in the second direction. FIG. 4 is a cross-sectional view of the packaged article of FIG. 2 cut in a second direction, and is a cross-sectional view cut in a second direction from a central position in the first direction.

2 to 4, the cushioned packaging article 11 according to an embodiment of the present invention includes an outer shell film layer 100 (or outer tube, or outer tube layer, or outer wall layer) and an inner outer film layer (200). ) (or an endothelial tube, or an endothelial tube layer, or an inner wall layer), and may further include an article to be packaged (400).

The outer shell film layer 100 may have a tubular or tube shape in which one end and the other end in the first direction (X) are closed and sealed. Accordingly, in a cross section cut in the first direction (X) or the second direction (Y), the shell film layer 100 is divided into an upper shell layer 110 and a lower shell layer 120 facing each other in the third direction (Z) can be expressed. The terms upper layer and lower layer may indicate a position relative to the article 400 to be packaged.

Additionally, the shell film layer 100 may further include a shell side portion 130. The shell side portion 130 may refer to a portion connecting the upper shell layer 110 and the lower shell layer 120. The shell side portion 130 may be expressed in a cross section of the packaged article 11 cut in the second direction (Y), but the present invention is not limited thereto. The shell side portion 130 may have a smoothly connected curved shape, but the present invention is not limited thereto. The upper shell layer 110, the lower shell layer 120, and the outer shell side portion 130 may be formed integrally with each other without physical boundaries.

As a non-limiting example, the packaged article 11 according to this embodiment can be delivered immediately without packaging it in a separate paper box. To prevent the outer film layer 100 from being damaged despite impacts during the logistics delivery process, the outer film layer 100 may be made of a polymer film material with relatively high strength and rigidity.

Likewise, the endothelial film layer 200 may have a tubular or tube shape in which one end and the other end in the first direction (X) are closed and sealed. Accordingly, in a cross section cut in the first direction (X) or the second direction (Y), the endothelial film layer 200 is divided into an upper endothelial layer 210 and a lower endothelial layer 220 facing each other in the third direction (Z). can be expressed. The terms upper layer and lower layer may indicate a position relative to the article 400 to be packaged.

Additionally, the endothelial film layer 200 may further include an endothelial side portion 230. The endothelial side 230 may refer to a portion connecting the upper endothelial layer 210 and the lower endothelial layer 220. The endothelial side portion 230 may be expressed in a cross section of the packaged article 11 cut in the second direction (Y), but the present invention is not limited thereto. The inner skin side portion 230 may have a crinkled shape so as to be in close contact with the side of the packaging object 400, but the present invention is not limited thereto. The endothelial side portion 230 may have a smoothly connected curved shape. The upper endothelial layer 210, the lower endothelial layer 220, and the endothelial side portion 230 may be formed integrally with each other without physical boundaries.

The outer shell film layer 100 and the inner shell film layer 200 may be made of the same or different materials. In addition, one or more of the outer skin film layer 100 and the inner skin film layer 200 may be made of a biodegradable polymer synthetic resin film, etc.

As will be described later, as air is injected into the first internal space S1, the inner skin film layer 200 may swell inward and come into close contact with the packaging object 400. 3 and the like illustrate a case where the packaging object 400 has a substantially rectangular shape, but in some cases, the packaging object 400 may have a very diverse shape. Therefore, the inner film layer 200 may be made of a polymer film material that is thinner and more flexible than the outer film layer 100 in terms of expansion and ease of adhesion to the packaging object 400, and has lower strength and rigidity.

The space between the outer skin film layer 100 and the inner skin film layer 200 may be sealed to form a first internal space (S1) separated from the external space. The first internal space S1 may form a thick air layer to provide a buffering function for the packaged article 400. A first internal space (S1) between the upper shell layer 110 and the upper inner layer 210, a first internal space (S1) between the outer shell side 130 and the inner skin side 230, and the lower outer layer 120 and the endothelium. The first internal space S1 between the lower layers 220 may be connected to each other. Air is filled or injected into the first internal space (S1) to expand the outer skin film layer 100 outward to a predetermined degree, and the inner skin film layer 200 expands inward enough to sufficiently adhere to the packaging object 400. You can do it. The pressure inside the first internal space S1 may be at atmospheric pressure level.

A packaging object 400 (i.e., a packaging object) may be disposed within the tube-shaped inner skin film layer 200. That is, the packaging object 400 may be disposed between the upper endothelium layer 210 and the lower endothelium layer 220 that face each other. In a cross section cut in the second direction (Y), the packaged article 400 may be surrounded by an upper endothelium layer 210, a lower endothelium layer 220, and an opposing endothelium side portion 230. 2 and the like illustrate a case where the packaged article 400 has a rectangular parallelepiped shape, but of course, the present invention is not limited thereto. The packaged product 400 may refer to a product that a logistics company wishes to deliver to a consumer.

As described above, both the outer shell film layer 100 and the inner shell film layer 200 may have a tube shape with one end (left end in FIG. 3) and the other end (right end in FIG. 3) closed in the first direction (X). . At this time, the outer skin film layer 100 and the inner skin film layer 200 may be fused together (eg, heat fused) and sealed.

In an exemplary embodiment, one end of the outer shell film layer 100 and one end of the inner shell film layer 200 may form a first fused portion 310 (or a first fixing portion, or a first coupling portion) together. Additionally, the other end of the outer shell film layer 100 and the other end of the inner shell film layer 200 may form a second fused portion 320 (or a second fixing portion, or a second coupling portion) together.

Specifically, in a cross section cut in the first direction ( The lower layer 220 may be at least partially abutted. And the sequentially laminated lower skin layer 120, lower inner skin layer 220, upper inner skin layer 210, and upper outer skin layer 110 are fused together to partially form the first fused portion 310 and the second fused portion 320. can do. In other words, the first fusion portion 310 and the second fusion portion 320 that seal one end and the other end of the outer shell film layer 100 are the first fusion portion that seals one end and the other end of the inner shell film layer 200, respectively. It may be understood as referring to substantially the same configuration as the portion 310 and the second fusion portion 320, or as overlapping in the third direction (Z).

In this specification, fusion refers to partially melting a polymer film or the like and processing it so that it can be bonded to adjacent components. In addition, the welded portion refers to a portion that contributes to adhesion by partially melting the surface or interior of a polymer film, etc. and irreversibly deforming it. As a non-limiting example, in the first fusion zone 310 and/or the second fusion zone 320, the interface of the lower outer layer 120, the lower inner layer 220, the upper inner layer 210, and the upper outer layer 110. may be at least partially mixed with each other or may not be recognized.

In a cross section cut in the second direction (Y), the outer skin film layer 100 and the inner skin film layer 200 may be spaced apart from each other. For example, the outer skin side 130 and the inner skin side 230 may be spaced apart in the second direction (Y). In addition, the upper outer layer 110 and the upper inner layer 210, the lower outer layer 120 and the lower inner layer 220 may be spaced apart from each other in the third direction (Z). The space between the outer skin film layer 100 and the inner skin film layer 200 may correspond to the first internal space (S1).

One end and the other end of the outer shell film layer 100 in the first direction ( A closed space can be formed. At this time, the inner surface of the outer skin film layer 100 (for example, the lower surface of the upper outer skin layer 110 and the upper surface of the lower outer layer 120) and the outer surface of the inner skin film layer 200 (for example, the upper surface and the upper surface of the upper inner skin layer 210). The space surrounded by the lower surface of the endothelial lower layer 220 may form the above-described first internal space (S1).

In addition, one end and the other end of the endothelial film layer 200 in the first direction ( A sealed space separated from the first internal space (S1) can be formed. At this time, the space surrounded by the inner surface of the endothelial film layer 200 (eg, the lower surface of the upper endothelial layer 210 and the upper surface of the lower endothelial layer 220) may define the second internal space S2. The pressure inside the second internal space S2 may be at atmospheric pressure level.

As will be explained in conjunction with the manufacturing method described later, the outer skin film layer 100 and the inner film layer 200 can each be formed by cutting a tube made of a polymer film. Accordingly, the maximum length of the outer shell film layer 100 of the cushioned packaging article 11 in the first direction (X) and the maximum length of the inner shell film layer 200 in the first direction (X) are substantially the same, or There may be a difference of about ±5%, or a difference of about ±3%, or a difference of about ±1%. That is, an end of the outer shell film layer 100 in the first direction (X) and an end of the inner shell film layer 200 in the first direction (X) may be aligned.

Meanwhile, the width (e.g., maximum width) of the inner shell film layer 200 in the second direction (Y) is substantially the same as the width (e.g., maximum width) of the outer shell film layer 100 in the second direction (Y). , or may be smaller. For example, the width of the inner skin film layer 200 in the second direction (Y) at the fused portions 310 and 320 forms the maximum width, and the outer shell film layer 100 at the fused portions 310 and 320 It may be substantially the same as the width of . In addition, the width of the inner skin film layer 200 in the second direction (Y) from the center of the first direction (X) is in close contact with the packaging object 400 to form the minimum width, and the outer skin film layer at that position It may be smaller than the width of (100). However, the present invention is not limited thereto.

Hereinafter, the manufacturing method of the cushioned packaging article 11 according to the present invention and the manufacturing equipment used for manufacturing the same will be described.

Figure 5 is a flowchart showing a method of manufacturing a packaged article according to an embodiment of the present invention.

Referring to Figure 5, the method of manufacturing a packaged product according to this embodiment prepares an outer shell tube and an inner tube tube (S100), cuts the outer tube and an inner tube tube together at a predetermined position (S200), and packages them within the inner tube tube. The target article is introduced (S300), air is injected between the outer shell tube and the inner tube tube (S400), air is sucked out from the inner space of the inner tube tube (S500), and one end and the other end of the outer tube tube and the inner tube tube are fused together. It may include forming a sealed first internal space and a second internal space (S600).

In the step of preparing the outer tube and the inner tube (S100), the endothelial tube may be placed within the outer tube. The outer shell tube and the inner tube may have a long length in the longitudinal direction. And in the cutting step (S200), the long length of the outer tube and inner tube can be cut. At this time, the cutting position can be appropriately selected considering the shape and size of the product to be packaged. Alternatively, the cutting step may be omitted, and in the preparation step (S100), the outer shell tube and the inner tube may be individually cut into generalized sizes and provided.

Additionally, a buffer layer can be formed by injecting air into the space between the outer shell tube and the inner tube, for example, into the first internal space described above (S400). At the same time, the endothelial tube can be brought into close contact with the packaging object by sucking in air from inside the second internal space (S500). And the first internal space and the second internal space can be sealed through fusion (S600).

According to the manufacturing method of this embodiment, a cushioned packaging article can be manufactured in a simple manner using tubes made of polymer film material that are long in the longitudinal direction. In addition, since the packaging process is performed while cutting a long polymer film in the longitudinal direction as needed, it can be implemented as a continuous process.

In some embodiments, the cutting step (S200) may be omitted. In this case, an outer shell tube and an inner tube having a predetermined length in the longitudinal direction are prepared (S100), and an introduction step (S300), an air injection step (S400), an air suction step (S500), and a fusion step (S600) are performed. You can.

Of course, the method of manufacturing a packaging article according to this embodiment, which is performed as a continuous process, can be performed in the same order as the above-described steps or by partially changing the order. Hereinafter, several other in-depth embodiments that can supplement or replace the manufacturing method according to the above-described embodiment will be described.

Figure 6 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention. Figure 7 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 6. Figures 8 to 11 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 6.

First, referring to FIG. 6, the method of manufacturing a packaged article according to this embodiment prepares an outer shell tube and an inner tube (S110), inserts the packaging object into the inner tube (S310), and connects the outer shell tube to the inner tube at a predetermined position (S310). Cut the endothelial tube together (S210), inject air between the outer tube and the endothelial tube (S410), suction air from the inner space of the endothelial tube (S510), and fuse one end and the other end of the outer tube and the endothelial tube. This may sequentially include forming a sealed first and second internal space (S610).

The manufacturing method according to this embodiment is performed as a continuous process in which the drawing step (S310), cutting step (S210), air injection step (S410), air suction step, and fusing step (S510, S610) form a unit process and are repeated. It can be.

Also, referring further to FIG. 7, the packaging article manufacturing apparatus 901 according to the present embodiment includes an unwinding roll unit 910 on which a tube roll T is wound, and transport of the tube roll unwinding from the unwinding roll unit 910. A guiding transfer roll unit 915, a cutter unit 920 disposed to cut a predetermined position in the longitudinal direction of the tube roll T unwinding from the unwinding roll unit 910, and a tube roll T unwinding from the unwinding roll unit 910. ) may include one or more fusion performing parts 950 configured to heat-seal the tube roll (T), and an air injection part 940 and an air suction part 945 configured to inject air between the outer and inner tubes of the tube roll (T). there is.

In an exemplary embodiment, the one or more fusion performing units 950 may include a first fusion performing unit 951 and a second fusion performing unit 952 located in a process downstream compared to the cutter unit 920. , the present invention is not limited thereto. The first fusion performing unit 951 and the second fusion performing unit 952 may be arranged at a predetermined distance apart in the process direction. The fusion performing parts 950 may be configured to perform heat fusion by lifting in the vertical direction or moving in the width direction of the tube roll (T).

Next, with further reference to FIG. 8, in the step of preparing the outer shell tube 100t and the inner tube 200t (S110), the inner tube 200t may be placed within the outer tube 100t. The outer tube 100t and the inner tube 200t may have a long length in the longitudinal direction. In an exemplary embodiment, the longitudinal ends 10a of the outer shell tube 100t and the inner tube 200t may be open and not sealed. The tube roll T including the outer shell tube 100t and the inner tube 200t may be unwound from the unwinding roll unit 910, pass through the transfer roll unit 915, and then be unwound to the vicinity of the air injection unit 940.

Next, with further reference to FIG. 9, the packaging object 400 is introduced through one end opening 200p of the endothelial tube 200t (S310). The packaging object 400 may be introduced at a location after the tube roll T passes the first fusion performing unit 951, but the present invention is not limited thereto.

Next, referring further to FIG. 10, the inner tube 200t and the outer tube 100t are cut at a certain position in the longitudinal direction (S210). Cutting the tube can be performed using the cutter unit 920. As the cutter unit 920 cuts a certain position of the tube extending in the longitudinal direction, the cut tubes 100t and 200t may have an open end 10a and an open other end 10b. Meanwhile, the tubes 100t and 200t at one end 10a' of the remaining tube roll T, excluding the cut portion, may also be in an open state. And the above-mentioned drawing step (S310) can be continuously performed using the remaining tube roll (T) having the open end (10a'). In some embodiments, the cutting step (S210) may be performed before the pulling step (S310).

Next, with further reference to FIG. 11, air is injected into the space between the outer shell tube (100t) and the inner tube (200t) (S410), air is sucked out from the inner space of the inner tube tube (200t) (S510), and the outer tube tube (200t) is injected into the space (S410). (100t) and both one end (10a) and the other end (10b) of the endothelial tube (200t) can be fused (S610).

Air injection may be performed using the air injection unit 940. Additionally, suction of air can be performed using the air suction unit 945. Figure 7 illustrates a case where the air injection unit 940 and the air suction unit 945 are configured as one module, but the present invention is not limited thereto. Additionally, injection and suction of air may be performed from one side, but the present invention is not limited thereto.

In addition, fusion of one end of the outer shell tube 100t and the inner tube 200t may be performed using the second fusion performing unit 952, and fusion of the other end may be performed using the first fusion performing unit 951. there is. The second fusion performing part 952 may form the above-described first fusion part, and the first fusion performing part 951 may form the above-described second fusion part.

In some embodiments, the air injection step (S410), the air suction step (S510), and the fusing step (S610) may be performed simultaneously, sequentially, or subdivided in parallel. For example, after fusing the other end, the article may be introduced (S310), air may be injected/suctioned (S410, S510), and one end may be fused. Alternatively, air can be injected/suctioned while the other end is being fused and one end can be fused. Alternatively, the other end is fused, the article is introduced (S310), one end is partially fused, and then the air injection part 940 and the air suction part 945 are inserted into the part of the unfused end to inject/suction air. And one end can be completely fused. Alternatively, fusion of the other end and partial fusion of one end may be performed simultaneously, and one end may be completely fused after injecting/suctioning air.

Through the above-described process, the packaging target product shown in Figure 2 and the like can be prepared or manufactured.

As described above, the cutting step in other embodiments may be omitted. That is, Figure 7 illustrates a case where a tube roll including an outer tube and an inner tube is prepared, unrolled, and cut to the required length for use. However, unlike this embodiment, the outer tube and inner tube are not provided in the form of a tube roll, but can be used already cut to a predetermined length.

Figure 12 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention. Figure 13 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 12. Figures 14 to 18 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 12.

Referring to FIG. 12, the method of manufacturing a packaged article according to this embodiment prepares an outer shell tube and an inner tube (S120), fuses one end of the outer tube and an inner tube (S621), and attaches the outer tube and the inner tube at a predetermined position. Cut the endothelial tubes together (S220), insert the packaging object into the endothelial tube (S320), partially fuse the other ends of the outer and inner tubes (S622a), and inject air between the outer and inner tubes. (S420), suctioning and removing air from the inner space of the endothelial tube (S520), and completely fusing the other ends of the outer tube and the endothelial tube (S622b).

The manufacturing method according to this embodiment includes a fusion step (S621), a cutting step (S220), a drawing step (S320), a partial fusion step at the other end (S622a), an air injection step (S420), an air suction step (S520), and the other end. The complete fusion step (S622b) forms a unit process and can be performed as a continuous process in which these are repeated.

Also, with further reference to FIG. 13, the packaging product manufacturing apparatus 902 according to the present embodiment omits the first fusion performing unit and includes only the second fusion performing unit 952, which is similar to the packaging product according to the above-described embodiment. This is different from the manufacturing device. The fusion performing unit 950 (second fusion performing unit) may be located downstream of the process compared to the cutter unit 920.

Next, with further reference to FIG. 14, in the step of preparing the outer shell tube 100t and the inner tube 200t (S120), the inner tube 200t may be placed within the outer tube 100t. In an exemplary embodiment, the longitudinal ends 10a of the outer shell tube 100t and the inner tube 200t may be open and not sealed. The tube roll (T) including the outer shell tube (100t) and the inner tube (200t) is unwound from the unwinding roll unit 910, passes through the transfer roll unit 915, and then is connected to the fusion performing unit 950 and the air injection unit 940. It can be extruded to the vicinity.

Next, with further reference to FIG. 15, one end of the outer tube (100t) and the inner tube (200t) can be fused (S621). Fusion of the outer tube 100t and one end 10a of the inner tube 200t may be performed using the fusion performing unit 950.

Next, with further reference to FIG. 16, the inner tube 200t and the outer tube 100t are cut at a certain position in the longitudinal direction (S220). As the cutter unit 920 cuts a certain position of the tube extending in the longitudinal direction, the cut tubes 100t and 200t may have an open other end 10b. As described above, the ends 10a of the tubes 100t and 200t are sealed or closed in the fusion step S621. Meanwhile, the tubes 100t and 200t of the end portion 10a' of the remaining tube roll T, excluding the cut portion, may also be in an open state. And the above-described one-end fusion step (S621) can be continuously performed using the remaining tube roll (T) having the open end (10a').

Next, with further reference to FIG. 17, the packaging object 400 is introduced through the other end opening 200p of the endothelial tube 200t (S320). The packaging object 400 may be introduced at a location following the cutter unit 920, but the present invention is not limited thereto. In another embodiment, the lead-in step (S320) may be performed on a separate process table.

Next, with further reference to FIG. 18, air is injected into the space between the outer shell tube (100t) and the inner tube (200t) (S420), air is sucked out from the inner space of the inner tube tube (200t) (S520), and the outer tube tube (200t) is injected into the space (S420). (100t) and the other end of the endothelial tube (200t) can be fused (S622a, S622b).

In an exemplary embodiment, the other ends of the outer shell tube (100t) and the inner tube (200t) are only partially fused (S622a), air is injected through the unfused opening on the other end side (S420), and the other end side is fused. Suction of air through the unfused opening (S520), sufficient injection and suction of air, and then complete fusion of the unfused opening (S622b) may be performed sequentially. The other fusion steps S622a and S622b may use the fusion performing unit 950 used for one set of fusion, or may use a fusion performing unit of a separate process table. In addition, it is obvious that the process can be performed by turning the outer shell tube 100t and the inner tube 200t so that the other ends face one side in order to inject air and fuse the other ends using the fusion performing unit 950.

Through the above-described process, the packaging target product shown in Figure 2 and the like can be prepared or manufactured.

Figure 19 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention. Figure 20 is a schematic diagram showing a manufacturing apparatus for a packaging article used in the manufacturing method according to the embodiment of Figure 19. Figures 21 to 25 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 19.

Referring to FIG. 19, the method of manufacturing a packaged article according to this embodiment prepares an outer tube and an inner tube (S130), cuts the outer tube and an inner tube together at a predetermined position (S230), and cuts the remaining tube roll. One end is fused (S631), the packaging object is introduced into the cut inner tube tube (S330), the other ends of the outer tube and the inner tube are partially fused (S632a), and air is injected between the outer tube and the inner tube. (S430), suctioning and removing air from the inner space of the endothelial tube (S530), and completely fusing the other ends of the outer tube and the endothelial tube (S632b).

The manufacturing method according to this embodiment includes a cutting step (S230), a fusion step of the remaining tube roll (S631), a drawing step (S330), a fusion step of the other end portion (S632a), an air injection step (S430), and an air suction step (S530). ) and the other end complete fusion step (S632b) form a unit process and can be performed as a continuous process in which they are repeated.

Referring further to FIG. 20, the apparatus 903 for manufacturing a packaged article according to the present embodiment includes a first fusion performing unit 950 in which the fusion performing units 950 include a first fusion performing unit 951 and a second fusion performing unit 952. 1 The fusion performing unit 951 is located upstream in the process compared to the cutter unit 920, or is implemented by being integrated with the cutter unit 920, and the second fusion performing unit 952 is located at a process downstream compared to the cutter unit 920. The difference from the packaging article manufacturing apparatus according to the above-described embodiment is that it is located in the stream.

Next, with further reference to FIG. 21, in the step of preparing the outer shell tube 100t and the inner tube 200t (S130), the inner tube 200t may be placed within the outer tube 100t. In an exemplary embodiment, the longitudinal ends 10a of the outer shell tube 100t and the inner tube 200t may already be fused and sealed or closed. The tube roll (T) including the outer shell tube (100t) and the inner tube (200t) is unwound from the unwinding roll unit 910, passes through the transfer roll unit 915, and then is connected to the second fusion performing unit 952 and the air injection unit ( It can be extracted up to around 940).

Next, with further reference to FIG. 22, the inner tube 200t and the outer tube 100t are cut at a certain position in the longitudinal direction (S230). As the cutter unit 920 cuts a certain position of the tube extending in the longitudinal direction, the cut tubes 100t and 200t may have an open other end 10b. As described above, one end 10a of the tubes 100t and 200t is already fused in the preparation step S130.

The part cut by the cutter unit 920 and used for manufacturing the packaging object in the unit process is referred to as the first outer tube (100t) and the first inner tube (200t), and the remaining tube roll (T) is referred to as the first outer tube (100t) and the first inner tube (200t). 2 are referred to as the outer tube and the second inner tube.

Next, referring further to FIG. 23, the second outer tube of the remaining tube roll and one end (10a') of the second inner tube can be fused (S631). That is, one end 10a' of the remaining tube roll T cut in the cutting step S230 is open, and the opening of the remaining tube roll T can be fused and sealed in this step S631. Fusion of one end of the second outer shell tube and the second inner tube may be performed using the first fusion performing unit 951.

In some embodiments, the cutting step (S230) and the step of fusing one end of the second tubes (S631) may be performed sequentially, in reverse order, or at least partially simultaneously. That is, fusion may be performed on one end of the remaining tube rolls (second tubes) after cutting, or fusion may be performed simultaneously with cutting. And the above-described cutting step (S230) can be continuously performed using the remaining tube roll T having a fused end, that is, the second outer shell tube and the second inner tube.

Next, with further reference to FIG. 24, the packaging object 400 is introduced through the cut tubes, that is, the other end opening 200p of the first endothelial tube 200t (S330). The packaging object 400 may be introduced at a location following the cutter unit 920, but the present invention is not limited thereto. In another embodiment, the lead-in step (S330) may be performed on a separate process table.

Next, with further reference to FIG. 25, air is injected into the space between the first outer tube (100t) and the first inner tube (200t) (S430), and air is sucked out from the inner space of the first inner tube (200t). (S530), the other ends of the first outer tube (100t) and the first inner tube (200t) can be fused (S632a, S632b). The second fusion performing unit 952 may be used for fusion at the other end, but of course, the present invention is not limited thereto. These steps (S632a, S430, S530, and S632b) have been described in detail with reference to FIG. 18, so redundant description will be omitted.

Through the above-described process, the packaging target product shown in Figure 2 and the like can be prepared or manufactured.

Figure 26 is a flowchart showing a method of manufacturing a packaged article according to another embodiment of the present invention. Figures 27 to 31 are diagrams showing a method of manufacturing a packaged article according to the embodiment of Figure 26.

Referring to FIG. 26, the method of manufacturing a packaged article according to this embodiment prepares an outer shell tube and an inner tube tube (S140), fuses the outer tube and an inner tube tube at the first position rather than the end (S640), and Cutting the outer shell tube and the inner tube tube together at the position (S241), cutting the outer tube tube and the inner tube tube together at a second position different from the first position (S242), and cutting the first article to be packaged from one end of the first inner tube tube. Inserting (S341), inserting the second packaging object from the other end of the second endothelial tube (S342), partially fusing, injecting air, suctioning, and completely fusing the first outer tube and one end of the first endothelial tube ( S441, S541), partially fusing, air injection, suction, and completely fusing one end of the second outer shell tube and the second inner tube (S442, S542).

The manufacturing method according to this embodiment includes a first position fusion step (S640), a first position cutting step (S241), a second position cutting step (S242), a first packaging object introduction step (S341), and a second packaging object. The product introduction step (S342), the air injection, suction, and fusion steps of the first tubes (S441, S541), and the air injection, suction, and fusion steps of the second tubes (S442, S542) form a unit process and are repeated in succession. It can be performed as a process.

Next, with further reference to FIG. 27, in the step of preparing the outer shell tube 100t and the inner tube 200t (S140), the inner tube 200t may be placed within the outer tube 100t. In an exemplary embodiment, the longitudinal ends 10a of the outer shell tube 100t and the inner tube 200t may be open and not sealed.

In addition, the outer shell tube 100t and the inner tube 200t can be fused at any position in the longitudinal direction, for example, the first position P1 (S640).

Next, with further reference to FIG. 28, the first fused position is cut (S241). As the cutter part cuts the already fused first position, the cut tube (eg, first tubes 101t and 201t) may have a sealed other end 10b. As described above, one end 10a of the first tubes 101t and 201t is in an open state. In another embodiment, the cutting step (S241) at the first position may be performed after any step that will be described later. For example, it may be performed at the end of a unit process.

Next, referring further to FIG. 29, the remaining tube roll after the first tubes 101t and 201t have been cut is cut at a certain position in the longitudinal direction, for example, at the second position P2 (S242). The cut tube with the first position as one end (10a') and the second position as the other end (10b') may be referred to as second tubes (102t, 202t). As described above, the ends 10a' of the second tubes 102t and 202t have ends fused and sealed in the fusion step S640. The other ends 10b' of the second tubes 102t and 202t may be open.

Next, referring further to FIG. 30, the first packaging object 401 is introduced through the opened end opening 201p of the first endothelium tube 201t (S341), and the first packaging object 401 is introduced through the open end of the second endothelium tube 202t. The second packaging target article 402 is introduced through the other end opening 202p (S342).

Next, referring further to FIG. 31, air is injected into the space between the first outer tube 101t and the first inner tube 201t (S441), and air is sucked out from the inner space of the first inner tube 201t. , one end of the first outer tube 101t and the first inner tube 201t can be fused (S641). In addition, air is injected into the space between the second outer tube 102t and the second inner tube 202t (S442), air is sucked out from the inner space of the second outer tube 202t, and the second outer tube tube (202t) is injected (S442). 102t) and the other end of the second endothelial tube 202t can be fused (S642).

Through the above-described process, the packaging target product shown in Figure 2 and the like can be prepared or manufactured.

In the various embodiments described above, for example, those shown in FIGS. 5, 6, 12, 19, and 26, various modified embodiments in which the chronological order may vary have been described. However, in the most preferred embodiment considered by the present applicant, one (or other) end of the outer shell tube and the inner tube is completely fused and sealed, and the other (or one side) end is partially fused, for example. sealing at least about 90%, or at least about 95%, injecting air into the space between the outer shell tube and the inner tube through an opening in the remaining portion of the other end that is not sealed, and simultaneously or sequentially injecting air into the endothelial tube. is sucked/sucked in, and after a sufficient amount of air is injected/sucked, the remaining portion of the other end that is not sealed can be completely fused and sealed. The injection and suction of air may be performed at least partially simultaneously. For example, when using an air pump, air sucked from the inner space of the endothelial tube can be configured to be directly injected between the outer tube and the endothelial tube. Of course, the above-described time-serial process sequence can be applied to all embodiments of FIGS. 5, 6, 12, 19, and 26.

According to the method of manufacturing a packaged article according to the present embodiments, a cushioned packaged article can be manufactured in a relatively simple and continuous process using a tubular-shaped inner shell tube disposed within a tubular-shaped outer shell tube. In the conventional case, for example, packaging goods for manufacturing packaging goods such as air packing are produced in a standardized manner, and due to their complex shape, rather than manufacturing and using them directly at a logistics company, finished goods such as air packing are purchased and the goods are packaged. The situation was that it was being used. In other words, because the air packing was already filled with air, its volume was a significant problem.

However, according to this embodiment, a highly durable cushioned packaging product can be manufactured simply by filling air immediately in the process of packaging the product to be packaged by a logistics company. In addition, since the tube is cut to only the required length or size according to the shape and size of the packaged goods subject to logistics, the use of unnecessary plastic can be reduced and space and cost can be saved.

Furthermore, since the cushioned packaging product according to the present invention can be delivered as is without additional cushioning materials or paper boxes, the work time required for the packaging process can be shortened and the weight of the delivered logistics can also be reduced. In particular, it has been pointed out that conventional paper boxes, air packing, air caps, etc., and adhesive tapes cause environmental pollution such as large amounts of carbon emissions during the manufacturing process, and that waste mixed with multiple materials is difficult to recycle. there is. A solution to this problem is urgently needed as the increase in logistics volume such as parcel delivery has recently become more rapid.

However, the cushioned packaging product according to the present invention is environmentally friendly because it uses minimal resources in accordance with the size and shape of the packaged product to be delivered. Additionally, because it does not cause unnecessary weight and volume increase, it is possible to increase the amount of cargo that can be delivered at one time. Additionally, adhesive tape can be eliminated during the packaging process, which can be advantageous for recycling by minimizing the use of different materials. For example, the outer skin film layer may be separated from the inner film layer and recycled in the form of recycled resin pellets, and the inner film layer may be made of biodegradable resin.

Additionally, if the outer film layer and the inner film layer are made of a translucent or opaque material, the product may be prevented from being viewed by others. Additionally, the use of the company logo can enhance the company image. In addition, sufficient air can be filled in the first internal space of the packaged article, so it can have a certain warming and cooling effect. Therefore, transportation of food materials is also something to consider in the future.

In conclusion, the primary purpose is to prevent and protect items as much as possible from damage that may occur during delivery, as well as reducing production and distribution costs, minimizing carbon emissions, diversity of design sense, and aesthetic value. It can be said to be an invention worth looking forward to as it is a product of the times that fits the century's expectations and purpose of a paradigm shift in the existing package industry.

Although the above description focuses on the embodiments of the present invention, this is only an example and does not limit the present invention, and those skilled in the art will understand the present invention without departing from the essential characteristics of the embodiments of the present invention. It will be apparent that various modifications and applications not illustrated above are possible.

Therefore, the scope of the present invention should be understood to include changes, equivalents, or substitutes of the technical ideas exemplified above. For example, each component specifically shown in the embodiments of the present invention can be modified and implemented. And these variations and differences in application should be construed as being included in the scope of the present invention as defined in the appended claims.

11: Cushioned packaging article
100: outer shell film layer
110: outer skin upper layer
120: outer skin lower layer
200: Endothelial film layer
210: Endothelium upper layer
220: Endothelial lower layer
310: first fusion zone
320: Second fusion zone
400: Item to be packaged

Claims (7)

a skin film layer including an upper layer and a lower layer connected to each other; and
An inner skin film layer disposed between the upper and lower layers of the outer skin film layer, comprising an upper layer and a lower layer connected to each other, and having an air layer interposed between the outer skin film layer,
One end of the outer shell film layer and the inner shell film layer in the first direction forms a first fused portion,
A cushioned packaging article wherein the other ends of the outer shell film layer and the inner shell film layer in the first direction together form a second fusion portion. According to paragraph 1,
In the cross section cut in the first direction, the upper and lower layers of the outer skin film layer and the upper and lower layers of the inner skin film layer are connected through a first fusion portion and a second fusion portion,
In a cross section cut in a second direction crossing the first direction, the outer shell film layer and the inner shell film layer are spaced apart to form the air layer. According to paragraph 1,
The outer skin film layer and the inner skin film layer are physically separated from each other except for the first and second fusion parts,
The first internal space formed by the outer skin film layer, the inner skin film layer, the first fusion portion, and the second fusion portion is sealed to form the air layer,
A cushioned packaging article, wherein the second internal space formed by the upper and lower layers of the inner skin film layer, the first fusion portion, and the second fusion portion is sealed and separated from the external space. A tubular-shaped shell tube with one end and the other end in the first direction closed;
a tubular-shaped endothelial tube disposed within the outer tube, and having one end and the other end in the first direction closed; and
Including an article to be packaged placed within the endothelial tube,
A cushioned packaging article in which the one end and the other end of the outer shell tube are fused together with the one end and the other end of the inner tube, respectively. As a tubular-shaped shell tube, a shell tube of a shape extending in the longitudinal direction is prepared,
As a tubular-shaped endothelial tube, prepare an endothelial tube placed inside the outer tube,
Inserting the article to be packaged into the interior of the endothelial tube,
Cutting the outer shell tube and the inner tube at a predetermined position in the longitudinal direction to form the other end,
Injecting air into the space between the outer tube and the inner tube,
The air in the endothelial tube is removed by suction.
A method of manufacturing a cushioned packaging article, comprising fusing one end and the other end of the outer shell tube and the inner tube. As a tubular-shaped shell tube, a shell tube of a shape extending in the longitudinal direction is prepared,
As a tubular-shaped endothelial tube, prepare an endothelial tube placed inside the outer tube,
Welding one end of the outer shell tube and the inner tube in the longitudinal direction,
Cutting the outer tube and the inner tube at a predetermined position in the longitudinal direction to form other ends of the outer tube and the inner tube,
Inserting an article to be packaged into the endothelial tube through an opening at the other end in the longitudinal direction of the cut endothelial tube,
The air in the endothelial tube is removed by suction.
Injecting air into the space between the cut outer tube and inner tube,
A method of manufacturing a cushioned packaging article, comprising fusing the cut outer shell tube and the other longitudinal end of the inner tube. An unwinding roll unit from which a tube roll including a tubular-shaped outer tube and an inner tube disposed within the outer tube is unwound;
a cutter unit configured to cut a predetermined position in the longitudinal direction of the tube unwound from the unwinding roll unit;
A fusion unit configured to heat-seal an end of the tube cut by the cutter in the longitudinal direction;
an air injection unit configured to inject air into a space of the tube cut by the cutter; and
An apparatus for manufacturing a packaged article, comprising an air suction portion configured to remove air from any other space of the tube cut by the cutter.