CN109819652B - Fluid packaging bag - Google Patents

Abstract

A fluid packaging bag comprises at least one fluid buffer body formed by at least two fluid storage films, wherein the fluid storage films are subjected to a series of plastic packaging to form at least one fluid storage unit capable of storing fluid, the fluid buffer body is bent and subjected to plastic packaging to form a containing cavity with an opening for containing at least one packaging object, and the fluid packaging bag is provided with at least one air hole communicated with the containing cavity and the external environment for preventing oxygen-free breathing of packaged fresh products.

Description

Fluid packaging bag

Technical Field

The present invention relates to a fluid packaging bag, and more particularly, to a fluid packaging bag, wherein at least one vent is formed on a wall of the fluid packaging bag to allow a packaged product to exchange gas with an external environment.

Background

Nowadays, technology is changing day by day, and transportation is reaching all around, and various electronic products, ceramic plastic products, chemical and medical products, food and the like are manufactured, produced or planted continuously and purchased by consumers, and are often inevitably damaged during transportation and storage from production to arrival at the hands of the consumers, so that protection or packaging of these products or goods is an important issue.

Most of the packaging schemes nowadays usually use a common gas cushion for protecting or packaging articles, or surround a containing cavity capable of containing articles to be packaged by several gas chamber walls, each gas chamber wall may contain one or more gas chambers for buffering, when the articles to be packaged are placed in the containing cavity, the gas chambers of the gas packaging bag can provide gas buffering action for the articles to be packaged from different directions, so as to prevent the articles to be packaged from being damaged in the processes of being impacted or falling off.

The existing packaging bag generally forms a containing cavity. Most goods are provided in regular shapes for ease of placement and transport. Accordingly, the shape of the accommodating cavity is mostly adapted to the shape of common plate-shaped, column-shaped and cuboid-shaped packaging articles. However, there are many things in nature that have their own unique shapes, which need to be present in their own shape and protected during storage and transport, such as grapes. When a bunch of grapes is irregularly shaped and is prevented from being placed in a packaging box with a rectangular box-shaped accommodating cavity, a buffering material such as paper capable of providing buffering effect is usually required to be padded around the bunch of grapes so as to prevent the bunch of grapes from shaking and being damaged in the packaging box. When several bunches of grapes are arranged in the same package, they are also easily damaged by collision. Thus, grapes, as a commodity that is easily damaged, are actually annoying to package and transport. The damage of the fruit not only causes the long-term heart blood of fruit growers to be discharged to the east and cause waste, but also the juice generated by the damage of the fruit growers easily causes pollution to surrounding articles and the environment.

In addition, with the improvement of the transportation level, fresh products such as fruits and vegetables all over the country can be transported to marketing places all over the country from the production place so as to meet the requirements of consumers. Especially, with the rapid development of the modern logistics industry, consumers can buy fresh products such as fruits and vegetables on the online and offline singly. The essential part of the transportation of these fresh products, such as fruits and vegetables, from the place of production to the place of demand or to the hands of the consumer is the storage and transportation of the products. However, in these two links, the fresh produce such as fruits and vegetables are often collided and rubbed with each other due to the jolt during the transportation and transportation of the fresh produce such as fruits and vegetables, which inevitably causes the damage of the fresh produce such as fruits and vegetables. And the damaged fresh produce such as fruits and vegetables are vulnerable to microbial attack, resulting in the decay of the fresh produce such as fruits and vegetables, and the decayed fresh produce such as fruits and vegetables tend to cause the decay of the fresh produce such as fruits and vegetables around them, which causes a great loss to the owners of the fresh produce such as fruits and vegetables. At present, most packing scheme often adopts a plurality of air chamber wall to enclose into one and can hold the chamber that holds that fresh produce product like fruit and vegetables are packed, then will wait to pack fresh produce product like fruit and vegetables and place this in and hold the intracavity in, for the packing should hold fresh produce product like fruit and vegetables in the intracavity and provide gaseous cushioning effect from different directions, in order to prevent that this fresh produce product from suffering to damage when receiving collision or friction like fruit and vegetables. However, if the packing bag is used to pack fresh produce such as fruits and vegetables, the fresh produce such as fruits and vegetables placed in the receiving chamber cannot be in contact with air and thus may be subjected to anaerobic respiration, thereby causing the decay of the fresh produce such as fruits and vegetables.

In addition, in order to maintain the freshness of fresh produce such as fruits and vegetables, refrigeration conditions are often provided to the fresh produce such as fruits and vegetables during transportation or in storage to reduce respiration of the fresh produce such as fruits and vegetables to some extent, thereby maintaining the freshness of the fresh produce such as fruits and vegetables. However, cold chain transportation or refrigeration undoubtedly increases the transportation and storage costs of fresh produce such as fruits and vegetables, and if the refrigerated fresh produce such as fruits and vegetables is separated from the refrigeration condition and comes into contact with the external environment, water drops are condensed on the surface of the fresh produce such as fruits and vegetables, which may easily cause the fresh produce such as fruits and vegetables to rot. In addition, cold chain transportation is even more difficult for fresh produce such as fruits and vegetables that consumers purchase orders directly on the internet. It is therefore an urgent need to provide a packaged product for fresh produce such as fruits and vegetables that is economical and low in cost and enables the fresh produce such as fruits and vegetables to be refrigerated for transportation and storage.

Disclosure of Invention

An object of the present invention is to provide a fluid packing bag which can provide an enhanced cushioning effect to the side of a packed article, thereby enhancing the overall safety of the packing bag and further providing better protection to the packed article.

Another object of the present invention is to provide a fluid packing bag which is capable of appropriately subjecting packaged fresh produce, such as vegetables, fruits, and flowers, to aerobic respiration, thereby inhibiting anaerobic respiration of the fresh produce, such as vegetables, fruits, and flowers, thereby preventing decay of the fresh produce, and thus extending the freshness date of the packaged produce.

Another object of the present invention is to provide a fluid packaging bag, wherein the fluid packaging bag can transport and store the fresh produce without leaving the refrigerated condition and keep the fresh.

Another object of the present invention is to provide a fluid packing bag, in which packed fresh produce can be tightly packed by the fluid packing bag, thereby preventing damage due to collision or friction between the packed fresh produce.

Another object of the present invention is to provide a fluid packing bag capable of providing a cushioning effect to a packed product, thereby preventing the packed product from being damaged due to dropping or collision.

In order to achieve at least one of the above objects, the present invention provides a fluid packaging bag, which includes at least one fluid buffer formed by at least two fluid storage films, wherein the fluid buffer includes at least one fluid storage unit capable of storing fluid, and the fluid buffer is bent and molded to form a containing cavity having an opening for containing at least one packaged object. Preferably, the fluid packaging bag is provided with at least one air vent which is communicated with the accommodating cavity and the external environment, so that the packaged product, particularly fresh products, can breathe. In addition, the side edges of the fluid cushion body prevent the packaged object from contacting the side edges of the fluid cushion body through a series of press-fit seams, thereby providing enhanced side cushioning.

Drawings

Fig. 1 is a schematic view showing a fluid packing bag according to a first preferred embodiment of the present invention, which is unfolded in a plane.

Fig. 2 is a schematic structural view of the fluid packing bag according to the first preferred embodiment of the present invention after being three-dimensionally molded.

Fig. 3 is a schematic structural view of the fluid packing bag according to the first preferred embodiment of the present invention after being filled with fluid.

Fig. 4 is a schematic sectional view of the fluid packing bag according to the first preferred embodiment of the present invention after being filled with fluid.

Fig. 5 is a sectional view of the fluid packing bag according to the first preferred embodiment of the present invention after being filled with fluid.

Fig. 6 is a schematic view of a fluid packing bag having a fluid filling valve according to the first preferred embodiment of the present invention, as it is unfolded in a plane.

Fig. 7 is a schematic structural view of the fluid packing bag having a fluid filling valve according to the first preferred embodiment of the present invention after being filled with fluid.

Fig. 8 is a schematic view illustrating a structure of a fluid filling valve of a fluid packing bag according to a preferred embodiment of the present invention.

Fig. 9 is a schematic view illustrating the construction of another fluid filling valve of the fluid packing bag according to the preferred embodiment of the present invention.

Fig. 10 is a schematic view illustrating the construction of another fluid filling valve of the fluid packing bag according to the preferred embodiment of the present invention.

Fig. 11 is a schematic view illustrating the construction of another fluid filling valve of the fluid packing bag according to the preferred embodiment of the present invention.

Fig. 12 is a schematic view showing a fluid packing bag according to a second preferred embodiment of the present invention, which is unfolded in a plane.

Fig. 13 is a schematic structural view of the fluid packing bag according to the second preferred embodiment of the present invention after being three-dimensionally molded.

Fig. 14 is a schematic structural view of the fluid packing bag according to the second preferred embodiment of the present invention after being filled with fluid.

Fig. 15 is a schematic sectional view of the fluid packing bag according to the second preferred embodiment of the present invention after being filled with fluid.

Fig. 16 is a schematic view showing an application of the fluid packing bag according to the above-described second preferred embodiment of the present invention.

Fig. 17 is a schematic sectional view showing an application of the fluid packing bag according to the second preferred embodiment of the present invention.

Fig. 18 is a schematic view showing a structure when the fluid packing bag according to the modified example of the second preferred embodiment of the present invention is unfolded in a plane.

Fig. 19 is a schematic perspective view of a fluid packing bag according to a modified example of the second preferred embodiment of the present invention.

Fig. 20 is a schematic structural view of the fluid packing bag according to the modified example of the second preferred embodiment of the present invention after being filled with fluid.

Fig. 21 is a schematic sectional view of a fluid packing bag according to a modified example of the second preferred embodiment of the present invention, after being filled with fluid.

Fig. 22 is a schematic structural view of a fluid packing bag having four airing holes according to a modified example of the second preferred embodiment of the present invention after being filled with fluid.

Fig. 23 is a plan view illustrating a fluid packing bag having four airing holes according to a modified example of the second preferred embodiment of the present invention.

Fig. 24 is a schematic view showing an application of a fluid packing bag having four airing holes according to a modified example of the second preferred embodiment of the present invention.

Fig. 25 is a schematic sectional view showing an application of a fluid packing bag having four airing holes according to a modified example of the second preferred embodiment of the present invention.

Fig. 26 is a schematic structural view of a fluid packing bag having six airing holes according to a modified example of the second preferred embodiment of the present invention after being filled with fluid.

Fig. 27 is a plan view illustrating a fluid packing bag having six airing holes according to a modified example of the above-described second preferred embodiment of the present invention.

Fig. 28 is a schematic structural view of a fluid packing bag having eight airing holes according to a modified example of the second preferred embodiment of the present invention after being filled with fluid.

Fig. 29 is a plan view illustrating a fluid packing bag having eight airing holes according to a modified example of the second preferred embodiment of the present invention.

Fig. 30 is a schematic view illustrating an application of a fluid packing bag having eight airing holes according to a modified example of the second preferred embodiment of the present invention.

Fig. 31 is a schematic sectional view illustrating an application of a fluid packing bag having eight vents according to a modified example of the above-described second preferred embodiment of the present invention.

Fig. 32 is a schematic view illustrating a structure of a fluid packing bag having twenty-one vents according to a modified example of the second preferred embodiment of the present invention after being filled with fluid.

Fig. 33 is a plan view illustrating a fluid packing bag having twenty-one airing holes according to a modified example of the above-described second preferred embodiment of the present invention.

Fig. 34 is a schematic view showing a fluid packing bag according to a third preferred embodiment of the present invention, which is unfolded in a plane.

Fig. 35 is a schematic structural view of the fluid packing bag according to the third preferred embodiment of the present invention after being three-dimensionally molded.

Fig. 36 is a schematic structural view of the fluid packing bag according to the third preferred embodiment of the present invention filled with fluid for packing an article.

Fig. 37 is a schematic sectional view showing the structure of the fluid packing bag package according to the above third preferred embodiment of the present invention.

Fig. 38 is a schematic structural view of a fluid packing bag according to a fourth preferred embodiment of the present invention.

Fig. 39 is a schematic view showing a fluid packing bag according to a sixth preferred embodiment of the present invention, which is unfolded in a plane.

Fig. 40 is a schematic structural view of the fluid packing bag according to the sixth preferred embodiment of the present invention after being filled with fluid.

Fig. 41 is a schematic structural view of a fluid packing bag according to a modified embodiment of the sixth preferred embodiment of the present invention, when it is unfolded in a plane.

Fig. 42 is a schematic structural view of a fluid packing bag according to a modified embodiment of the sixth preferred embodiment of the present invention, after being filled with fluid.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1 to 42, a fluid packing bag according to the present invention has a structure that can be filled with a fluid to provide a cushioning effect to various packing articles such as electronic products, foods, medical products, chemical materials, biomaterials, plastic ceramics, fast consumer goods, lighting fixtures, etc. after being filled with the fluid, and can be conveniently stored and transported without being filled with the fluid when not in use and can be filled with the fluid on site when in use, thereby being very convenient to use.

Fig. 1 to 11 show a fluid packing bag according to a first preferred embodiment of the present invention. In this preferred embodiment of the invention, the fluid packaging bag may be embodied as an air cushioning material, i.e. the fluid filled may be a gas, such as air for example. Of course, it will be understood by those skilled in the art that other gases are possible in the application as desired. According to the first preferred embodiment, it is possible to form a three-dimensional package bag after filling with fluid, thereby providing an air cushioning effect to a packaged article. It will be appreciated that the fluid may also be a liquid, such as a warming liquid, to provide a warming effect to the fluid packaging bag. That is, when the fluid packing bag is not used, the fluid packing bag can be not filled with the fluid, thereby being convenient for storage and transportation; when the fluid packing bag is used, the fluid packing bag can be filled with fluid to form a space structure to provide a cushioning effect for various packing articles such as vegetables and fruits.

In this preferred embodiment of the invention, the fluid packaging bag may be filled with a gas cushioning material, such as an air cushioning material, although it will be appreciated by those skilled in the art that other gases may be used as desired in the application. According to the first preferred embodiment, the fluid packing bag, after being filled with the gas buffering material, can form a three-dimensional packing bag having a spatial configuration, thereby providing a gas buffering effect to the product packed therein. It will be appreciated that the fluid cushioning material may also be a liquid, such as a warming liquid, to provide a warming effect to the product packaged therein; the fluid cushioning material may also be a cryogenic liquid, thereby providing a cryogenic environment for the product packaged therein.

It is worth mentioning that the fluid packaging bag is suitable for packaging various products, such as electronic products, ceramic products, glass products, fresh vegetables and fruits and the like. In the preferred embodiment of the present invention, fresh vegetables and fruits such as grapes are packed, but it does not constitute a limitation of the fluid packing bag.

According to the first preferred embodiment, the fluid packaging bag comprises at least one fluid buffering body 10, that is, a three-dimensional packaging bag is formed by one fluid buffering body 10 or a plurality of fluid buffering bodies 10 are connected by plastic sealing, such as bonding or heat sealing, to form the three-dimensional packaging bag. In the example of the invention shown in fig. 1 to 5, it is formed by one such fluid cushion body 10. More specifically, referring to fig. 1, the fluid buffering body 10 includes at least two fluid storage films 11 and 12 formed into the three-dimensional packaging bag including one or more connected fluid storage units 13 through a series of planar plastic sealing seams 30 and three-dimensional plastic sealing seams 40, and each fluid storage unit 13 forms a fluid storage chamber 14 for storing fluid therein.

It will be understood by those skilled in the art that the planar sealing seam 30 is used for plastic sealing the multi-layer film to form a planar cushion material as shown in fig. 1, and the three-dimensional sealing seam 40 is used for further plastic sealing the planar cushion material to form the fluid packaging bag into the three-dimensional packaging bag having a spatial three-dimensional configuration and capable of containing the packaged article, as shown in fig. 3. The planar seam 30 and the three-dimensional seam 40 may be formed by bonding or heat sealing the plurality of films together, and preferably, in this embodiment, both the planar seam 30 and the three-dimensional seam 40 may be formed by a heat sealing process.

According to the first preferred embodiment, the fluid cushion body 10 further comprises at least one fluid filling valve 20, which may be formed by a suitable valve body, such as a one-way mechanical valve or the like. Referring to fig. 8 to 11, in this embodiment, it is the fluid filling valve 20 formed of at least two valve films 21 and 22, the valve films 21 and 22 of the fluid filling valve 20 and the fluid storage films 11 and 12 are disposed to overlap each other, and a fluid filling passage 23 for filling the fluid storage chamber 14 with fluid is formed between the valve films 21 and 22. It is understood that the valve films 21 and 22 are shorter in length than the fluid storage films 11 and 12. When the fluid storage chamber 14 is filled with fluid through the fluid filling passage 23 and the pressure in the fluid storage chamber 14 reaches a predetermined requirement, the fluid pressure in the fluid storage chamber 14 acts on the valve films 21 and 22 to make the valve films 21 and 22 adhere to one of the fluid storage films, thereby closing the fluid filling passage 23 so that the fluid filling valve 20 functions as a check valve.

More specifically, as shown in fig. 8, the fluid filling valve 20 includes valve films 21 and 22, which are shorter than the two fluid storage films 11 and 12, and which are respectively overlapped with the fluid storage films 11 and 12 for forming a fluid filling passage 23 for filling the fluid storage chamber 14 of each of the fluid storage units 13 with fluid. As shown in fig. 9, the fluid filled valve 20 may further include adding a valve membrane 25 between the two valve membranes 21 and 22 for enhanced sealing performance. As shown in fig. 10, the fluid filling valve 20 may further include a reinforcing film 26 between the fluid storage film 12 and the valve film 22, i.e., outside the two valve films 21 and 22, to prevent the joint between the valve film 22 and the fluid storage film 12 from being torn, thereby reinforcing the stable joint. As shown in fig. 11, the main passage unit 15 may also be formed by an outer extension of the valve membranes 21 and 22, and an inner extension thereof forms the fluid filling passage 23 with the fluid storage membranes 11 and 12. It will be appreciated that the specific configuration of the fluid filling valve 20 described above is by way of example only and is not limiting to the present invention.

It should be noted that the fluid storage films 11 and 12 of the fluid buffering body 10 and the valve films 21 and 22 of the fluid filling valve 20 can be made of various suitable film materials, such as polyethylene film, polypropylene film, polyvinyl chloride film, polyester film, polystyrene film or composite film, and the invention is not limited in this respect, as long as the film is a suitable flexible film. It is worth mentioning that the valve membranes 21 and 22 of the fluid filled valve 20 may also be self-adhesive films modified by adding chemical components to the above films in order to increase the one-way sealing effect.

It should be noted that the fluid packaging bag may have a plurality of fluid filling valves 20, as shown in fig. 1 to 5, or may have only one fluid filling valve 20, as shown in fig. 6 to 7, which is not limited in this respect.

The fluid buffering body 10 further includes a main channel unit 15 connected to each of the fluid storage units 13, preferably integrally extended from each of the fluid storage units 13. More specifically, according to the first preferred embodiment, the main passage unit 15 is perpendicular to the extending direction of the fluid storage unit 13. For example, in this embodiment, each of the fluid storage units 13 extends in the longitudinal direction, and the main passage unit 15 extends in the transverse direction. The main passage unit 15 forms a main passage 151, and the main passage 151 has a filling fluid port 152, when a filling fluid nozzle is provided at the position of the filling fluid port 152 and a filling fluid operation is performed, fluid enters the main passage 151 from the filling fluid port 152 in a lateral direction and enters the fluid storage unit 13 again in a longitudinal direction, and when a predetermined fluid pressure is reached in the fluid storage chamber 14, the valve films 21 and 22 of the fluid filling valve 20 are attached to one of the fluid storage films 11 or 12, thereby achieving self-closure to prevent the re-permeation of the filled fluid into the main passage 151.

It is understood that the main channel unit 15 may be formed of two layers of the fluid storage films 11 and 12, as shown in fig. 8; it is also possible to form two layers of the valve films 21 and 22 as shown in fig. 11, or one of the fluid storage films 11 or 12 and one of the valve films 21 or 22.

As shown in fig. 1, the planar plastic seam 30 further includes a continuously sealed side sealing seam 32 and a continuously sealed main channel sealing seam 33, which are respectively located on the top and bottom sides of the fluid buffering body 10 and are adjacent to the side sealing seam 32, wherein the main channel 151 is formed between the side sealing seam 32 and the main channel sealing seam 33 on the top side. It will be appreciated that the edge seal 32 is formed by a plastic molding process such as bonding or heat sealing and sealingly connects the two fluid storage films 11 and 12. The main passage sealing seams 33 are formed by a plastic molding process such as bonding or heat sealing and connect two layers of the fluid storage films 11 and 12 and two layers of the valve films 21 and 22, respectively, and the main passage sealing seams 33 on the upper and lower sides, which are formed by a heat sealing process for example, heat seal the fluid storage film 11 and the valve film 21, respectively, and heat seal the fluid storage film 12 and the valve film 22, respectively, as shown in fig. 8, and heat seal the valve films 21 and 22 at positions other than the positions corresponding to the fluid passages 23.

As shown in fig. 1, the planar pinch seam 30 includes a series of guide slits 34, wherein a fluid fill valve 20 is correspondingly provided with two spaced rows of guide slits 34 formed by heat sealing the valve membranes 21 and 22 to define the fluid fill channel 23 between the two rows of guide slits 34.

Referring to fig. 5, the valve films 21 and 22 are further heat-sealed to the fluid storage film 11 through a plurality of connection seams 35 such that when a predetermined pressure is reached in the fluid storage chamber 14, the pressure acts on the valve films 21 and 22 and is simultaneously pressed toward the fluid storage film 11 and finally attached to the fluid storage film 11 due to the arrangement of the connection seams 35, thereby closing the fluid filling channel 23. That is, the joining seam 35 heat-seals two layers of the valve films 21 and 22 and one layer of the fluid storage film 11. In addition, as shown in fig. 1, the shape of each of the connecting seams 35 is designed such that it further functions to prevent the backflow of fluid, that is, when the fluid in the fluid storage chamber 14 is desired to flow back, it is blocked by the connecting seam 35 and cannot easily reverse into the main channel 151.

It is worth mentioning that the guiding slit 34 according to the preferred embodiment of the present invention is also connected to the valve membrane 11 to cooperate with the connecting slit 35 such that when a predetermined pressure is reached in the fluid storage chamber 14, the pressure acts on the valve membranes 21 and 22 to press and adhere the valve membranes 21 and 22 to the fluid storage membrane 11.

In addition, in heat-sealing the planar plastic seams 30, the fluid-filling passage 23 of the valve films 21 and 22 of the fluid-filling valve 20 can be formed by providing a heat-resistant barrier means which is removed after the heat-sealing process. According to the first preferred embodiment, a heat-resistant layer 24, which may be, for example, a heat-resistant ink, as shown in fig. 8 and 11, is provided between the valve films 21 and 22 of the fluid filling valve 20, and is attached to the inner surface of one of the valve films 21 or 22, so that, when the main passage sealing seam 33 is formed by heat-sealing, the two valve films 21 and 22 are not heat-sealed at the position corresponding to the heat-resistant layer 24, and thus the fluid filling passage 23 can communicate with the main passage 151 without closing its inlet port by heat-sealing.

According to the first preferred embodiment, the main channel 151 is formed by two layers of the fluid storage membranes 11 and 12, the heat-resistant layer 24 and the valve membranes 21 and 22 each have an extension into the main channel 151, the planar plastic seam 30 further includes a row of mutually spaced bonding seams 36 arranged in the transverse direction corresponding to the position of the extension of the heat-resistant layer 24, because of the arrangement of the heat-resistant layer 24, the bonding seams 36 connect the two layers of the fluid storage membranes 11 and 12 and the two layers of the valve membranes 21 and 22 respectively, and the two layers of the valve membranes 21 and 22 are not heat-sealed, and the arrangement of the bonding seams 36 is such that when the fluid cushion body 10 is filled with fluid, after the fluid enters the main channel 151, the adjacent valve membranes 21 and 22 and the corresponding connected fluid storage membranes 11 and 12 can expand together to open the corresponding fluid filling channel 23.

Fig. 1 to 5 show a fluid packing bag according to a preferred embodiment of the present invention, fig. 1 is a schematic plan view of the fluid packing bag, and the fluid buffering body 10 includes one fluid storage unit 13 in this exemplary embodiment and is arranged in a longitudinal direction. The main passage unit 15 is arranged in the lateral direction and is integrally formed with the fluid storage unit 13. As shown in the figure, the fluid storage unit 13 may be provided with a plurality of the fluid filling channels 23 formed by the fluid filling valve 20, thereby enhancing fluid filling speed and efficiency.

The fluid storage unit 13 extending in the longitudinal direction as shown in fig. 1 is adapted to be folded in half to obtain a structure in which the sub-fluid storage units 131 shown in fig. 6 are folded on each other, so that the fluid buffering body 10 forms a front side wall 10a and a rear side wall 10b, and then edge portions of the front side wall 10a and the rear side wall 10b on left and right sides of the fluid buffering body 10 are connected by the three-dimensional plastic sealing seams 40 on left and right sides, so that after the fluid buffering body 10 is filled with fluid, the fluid buffering body 10 forms a receiving cavity 100 having an opening 110, wherein a packaged article is adapted to be put into the receiving cavity 100 through the opening 110 and stored in the receiving cavity 100.

It will be appreciated that in this embodiment, the fluid cushion body 10 is provided with two rows of the three-dimensional plastic seams 40, which may be continuous or intermittent. The plastic packaging structure can be formed through primary plastic packaging, and can also be formed through secondary plastic packaging. The invention is not limited in this respect.

More specifically, the three-dimensional plastic sealing seam 40 includes two side sealing seams 41 which respectively connect the front sidewall 10a and the rear sidewall 10b at both ends of the fluid-packing bag, thereby forming the fluid-packing bag to have a bag-like structure. According to the first preferred embodiment of the present invention, the side seal 41 is a continuous heat seal to prevent the fluid filled in the fluid packing bag from overflowing. It is worth mentioning that the side seal 41 may be formed by one heat-seal or by a second heat-seal. The invention is not limited in this respect.

As shown in fig. 1, the three-dimensional plastic-sealed seam 40 further includes a series of press-fit seams 42 which plastically couple the fluid storage membranes 11 and 12 and the valve membranes 21 and 22, thereby functioning to press the fluid storage membranes 11 and 12 and the valve membranes 21 and 22 so that they are positioned not to be expanded by the filling fluid and the expansion degree of the surrounding portions thereof is relatively reduced.

According to the first preferred embodiment of the present invention, the pressing slits 42 are formed in a long bar shape and are arranged in a straight line, thereby partitioning the fluid storage units 13 into different sub-fluid storage units 131. A plurality of the press-fit slits 42 are provided at intervals to form a series of communicating channels 133. The fluid filled in the fluid packing bag can flow through the communication passage and be exchanged between the sub-fluid storage units 131 at both sides thereof.

Specifically, the front side wall 10a includes a front main side wall 101a, a front left side wall 102a, a front right side wall 103a, and a front bottom side wall 104 a. The front main side wall 101a is integrally connected to the front left side wall 102 a. A row of the pressing seams 42 is disposed between the front main sidewall 101a and the front left sidewall 102 a. The front main side wall 101a is integrally connected to the front right side wall 103 a. Another row of the pressing seams 42 is disposed between the front main sidewall 101a and the front right sidewall 103 a. The front main sidewall 101a is integrally connected to the front bottom sidewall 104 a. Another row of the pressing seams 42 is disposed between the front main sidewall 101a and the front bottom sidewall 104 a.

The rear side wall 10b includes a rear main side wall 101b, a rear left side wall 102b, a rear right side wall 103b, and a rear bottom side wall 104 b. The rear main side wall 101b is integrally connected to the rear left side wall 102 b. A row of the pressing seams 42 is disposed between the rear main sidewall 101b and the rear left sidewall 102 b. The rear main side wall 101b is integrally connected to the rear right side wall 103 b. Another row of the pressing seams 42 is disposed between the rear main sidewall 101b and the rear right sidewall 103 b. The rear major side wall 101b is integrally connected to the rear bottom side wall 104 b. Another row of the pressing seams 42 is disposed between the rear major sidewall 101b and the rear bottom sidewall 104 b.

More specifically, the pressing seams 42 include a row of first pressing seams 421, a row of second pressing seams 422, and a row of third pressing seams 423, which are respectively disposed at the left side, the right side, and the bottom side of the fluid packing bag and are respectively arranged in a straight line.

The first, second and third press- fit seams 421, 422 and 423 connect the front and rear major sidewalls 101a and 101b at left, right and bottom sides, respectively, to form a packaging body 101 having the receiving cavity 100.

In addition, the first press-fit seam 421 also heat-seals the front left sidewall 102a and the rear left sidewall 102b, thereby forming a left cushion body 102. The second press-fit seam 421 also heat-seals the front right sidewall 103a and the rear right sidewall 103b, thereby forming a right cushion body 103. The third pressing seam 421 also connects the front bottom sidewall 104a and the rear bottom sidewall 104b by heat sealing, thereby forming a bottom buffer 104. The left cushion body 102, the right cushion body 103 and the bottom cushion body 104 provide cushion protection at the left side, the right side and the bottom side of the package main body 101, respectively, to enhance the safety of the fluid packing bag.

It is worth mentioning that, since the pressing seams 42 are arranged at intervals, the sub-fluid storage unit 131 forming the package main body 101 and the sub-fluid storage unit 131 forming the left buffer 102 are communicated with each other. The fluid stored in the package main body 101 and the fluid stored in the left cushion body 102 can be exchanged through the communication channel 133.

Similarly, the sub-fluid storage unit 131 forming the package main body 101 and the sub-fluid storage unit 131 forming the right buffer 103 are communicated with each other. The fluid stored in the package main body 101 and the fluid stored in the right buffer body 103 can be exchanged through the communication channel 133. The sub-fluid storage unit 131 forming the package body 101 and the sub-fluid storage unit 131 forming the bottom buffer 104 are communicated with each other. The fluid stored in the package main body 101 and the fluid stored in the bottom buffer body 104 can be exchanged through the communication channel 133.

Therefore, when the package main body 101 is pressed by the outside, the fluid stored in the sub-fluid storage unit 131 can pass through the communication channel 133 and further pass through the sub-fluid storage unit 131 of the left buffer 102, the right buffer 103 and the bottom buffer 104, thereby dispersing the pressure applied thereto, enhancing the pressure resistance thereof and further enhancing the safety thereof.

Similarly, when the left buffer 102, the right buffer 103 or the bottom buffer 104 is pressed by the outside, the fluid stored in the sub-fluid storage unit 131 can enter the sub-fluid storage unit 131 of the package main body 101 through the communication channel 133, so as to disperse the pressure applied thereto, thereby enhancing the pressure resistance and the safety.

In summary, the provision of the stitching 42 is advantageous for enhancing the security of the fluid packaging bag.

It should be noted that the arrangement, arrangement position, arrangement number and arrangement shape of the press-fit seams 42 are merely examples and are not limited. Other shapes, locations and numbers of the stitching seams 42 may be provided according to other embodiments of the present invention. The present invention is not limited in this respect as long as the object of the present invention can be achieved.

It will be appreciated that, when the fluid cushion body 10 of the fluid packaging bag is packed, and the packaged item is put into the containing chamber 100 from the opening 110. Then, a fluid filling operation is performed, at which time fluid enters the fluid storage chamber 14, so that the fluid storage unit 13 is filled with the fluid to protrude inward and press-act on the outer surface of the packaged article to form a concave-convex shape in conformity with the shape of the packaged article. That is, the fluid packing bag can be filled with a fluid to have a shape that matches the shape of a packing article previously set in the receiving chamber 100, and thus can be used for packing articles of different shapes and can be used for packing articles of irregular shapes.

Fig. 12 to 17 of the accompanying drawings illustrate a fluid packing bag according to a second preferred embodiment of the present invention. The fluid packaging bag comprises a fluid cushion body 10A and a series of fluid filling valves 20 arranged on the fluid cushion body 10A. The fluid buffer body 10A comprises a fluid storage unit 13A formed by plastic-molding two layers of fluid storage films 11 and 12 through a series of plane plastic-molding seams 30A and a series of three-dimensional plastic-molding seams 40A. The fluid storage unit 13A has a fluid storage chamber 14.

The planar plastic seam 30A includes two-sided sealing seams 32A, a main channel sealing seam 33A, a series of guide seams 34, a series of connecting seams 35, and a series of joining seams 36. The three-dimensional plastic seam 40A includes two side seams 41A and a series of stitching seams 42A.

The fluid cushion body 10A includes a front sidewall 10A 'and a rear sidewall 10 b'. The side seal 41A heat-seals the front sidewall 10A 'and the rear sidewall 10 b' at both sides of the fluid cushion body 10A, thereby forming a receiving chamber 100A having an opening 110A.

Unlike the first preferred embodiment described above, the crimp seam 42A according to the first preferred embodiment of the present invention is shaped like a ring, which is disposed in the vicinity of the side seal seam 41A to reduce the expansion of its location and its periphery. According to the second preferred embodiment of the present invention, the number of the press-fit seams 42A is six, which are respectively provided at four corners and the middle of both sides of the fluid packing bag. These areas are areas that are susceptible to compression and expansion during packaging and shipping. The provision of the stitching 42A reduces the degree of expansion of these areas, so that the risk of damage to them from external stresses is reduced.

More specifically, the periphery of the fluid packing bag, i.e., the left, right and bottom sides thereof, is an area where the fluid filling amount is relatively small and the cushioning protection strength is weak. The provision of the seam 42A prevents the packaged article from being wrapped around the left and right side seams 41A and the bottom thereof, and thus away from the weakened cushioning region. On the contrary, when the periphery of the fluid packing bag is pressed by the outside, the fluid at the periphery flows toward the center, so that the pressure resistance is enhanced. Similarly, when the middle region of the fluid packaging bag is pressed, the fluid in the middle flows to the periphery, so that the compression resistance of the middle part of the fluid packaging bag is enhanced. That is, the pressing seam 42A forms a buffer area around the fluid packaging bag, thereby increasing the safety of the fluid packaging bag.

It should be noted that the arrangement, number, position and shape of the pressing seam 42A are only examples and not limitations of the present invention.

As shown in fig. 12-15, the planar molding slit 30A further includes at least one positioning slit 38A. The positioning slit 38A is provided in the fluid damper 10A. According to the second preferred embodiment of the present invention, the number of the positioning slits 38A is two and the positions of the two positioning slits 38A correspond when the fluid cushion body 10A is folded in half to form the front side wall 10A 'and the rear side wall 10 b'. That is, the flat sealing slit 30 includes one positioning slit 38A that is sealed to the front sidewall 10a 'and one positioning slit 38A that is sealed to the rear sidewall 10 b', and both are formed at the front and rear sides of the fluid packing bag and are located corresponding to each other. It should be noted that the above-mentioned number and arrangement positions of the positioning slits 38A are only examples of the present invention and are not limited thereto. The positioning slots 38A may be of other numbers and locations according to other embodiments of the invention. The number and the arrangement position thereof may be set according to the shape of the packaged article.

According to the second preferred embodiment of the present invention, the positioning slit 38A is located at a middle position of the fluid storage unit 13A. It will be appreciated that the positioning slit 38A plastically bonds at least two layers of the fluid storage films 11 and 12, such that the portion corresponding to the positioning slit 38A cannot be filled with fluid, and the surrounding portion can be filled with fluid for cushioning the packaged article.

As will be appreciated by those skilled in the art, the positioning slits 38A are implemented as planar molding slits in this embodiment, i.e., the positioning slits 38A are formed without three-dimensional molding. In another modification, the positioning slit 38A may also be performed in a three-dimensional plastic-molding step, that is, the fluid cushion body 10A is folded in half to form the front sidewall 10A 'and the rear sidewall 10 b', and then the three-dimensional plastic-molding slit 40 and the positioning slit 38A are formed by a plastic-molding machine, during the process of forming the positioning slit 38A, for example, in a heat-sealing process, a heat-resistant blocking device is disposed in the receiving cavity 100A, so as to prevent an inner fluid storage film, such as the fluid storage film 12, from being heat-sealed by the positioning slit 38A on the inner surface after being folded in half, that is, the positioning slit 38A only heat-seals two layers of the fluid storage films, but does not heat-seal four layers of the films into a whole, thereby ensuring that the receiving cavity 100A is continuously and completely formed. Or the inner surface of the fluid storage film is attached to a heat resistant object like the heat resistant layer 24, thereby preventing the inner surfaces thereof from being heat sealed together.

When the fluid cushion body 10A is filled with fluid and forms the fluid packing bag, the positioning slits 38A are formed to form the front side wall 10A 'and the rear side wall 10 b' into the concave-convex structure inwardly and outwardly, respectively. The concave inward tendency of the front side wall 10a 'and the rear side wall 10 b' advantageously holds the packaged article between the two positioning slits 38A, so that the packaged article can be more securely packaged and thus better protected.

In the preferred embodiment of the present invention, each positioning slit 38A is a plastic block and has a circular shape, and those skilled in the art will understand that the positioning slit 38A may also have a triangular shape, or other polygonal shapes such as a quadrilateral, a pentagonal, a hexagonal, etc., and the present invention is not limited in this respect. It can be understood that, because the positioning slits 38A are provided, the fluid cushioning member 10A forms a concave-convex structure on both the inner surface and the outer surface when the fluid packaging bag is filled with fluid and formed, and the concave-convex structure formed on the inner surface can effectively fix the packaged product to prevent the packaged product from being collided. The fluid packing bag has an uneven structure formed on the outer surfaces of the opposite front and rear side walls 10A 'and 10 b' thereof, so that when a plurality of fluid packing bags are stacked together, the concave structure of the fluid cushioning body 10A of one fluid packing bag can correspond to the convex structure of the fluid cushioning body 10A of another fluid packing bag, thereby effectively saving space and facilitating storage.

It will be appreciated that, when the fluid cushion body 10A of the fluid packaging bag is packed, and the packaged item is placed into the containing cavity 100A from the opening 110A. Then, a fluid filling operation is performed, at which time fluid enters the fluid storage chamber 14, so that the fluid storage unit 13A is filled with the fluid to protrude inward and press-act on the outer surface of the packaging article to form a concave-convex shape in conformity with the shape of the packaging article. That is, the fluid packing bag can be filled with a fluid to have a shape that matches the shape of the packing article previously set in the containing chamber 100A, and thus can be used for packing articles of different shapes and can be used for packing articles of irregular shapes.

According to the second preferred embodiment, the fluid packaging bag of the present invention is used for packaging fruits, such as grapes, apples, pears, pineapples, peaches, watermelons, oranges, plums, coconuts, grapefruits, pomegranates, pitaya, mango, and the like. It will be appreciated that the packaging article embodied as fruit is by way of example only and is not limiting to the invention. The fluid packaging bag can also be applied to packaging other foods, such as eggs, duck eggs, goose eggs, salted eggs, preserved eggs and other egg-type foods, or other electronic products, lamps, ceramic products and the like.

As shown in fig. 10 and 11, the planar pinch-off seam 30A further includes a series of pinch-off seams 39A. The shaping slit 39A is formed at the bottom of the fluid packing bag to connect the two fluid storage films 11 and 12 at the bottom of the fluid packing bag, thereby preventing the inner one of the fluid storage films 11 and 12 from being excessively inwardly contracted, thereby facilitating to maintain the overall shape of the fluid packing bag. In addition, the shaping slit 39A provides a flatter bottom for the fluid packaging bag, which is more suitable for standing, such as in a packaging box.

According to the second preferred embodiment of the present invention, the shaping slits 39A are crescent-shaped and arranged in pairs. It will be understood by those skilled in the art that the above-mentioned shape of the shaping slit 39A is merely an example of the present invention and is not a limitation. According to other embodiments of the present invention, the shaping slit 39A may have other shapes, such as circular, square, etc. As long as can reach the purpose of the utility model, the utility model discloses do not limit in this respect.

A variant of the second preferred embodiment of the invention is shown in fig. 18-33. The fluid packaging bag further has at least one vent hole 200B and at least one corresponding hole sealing seam 201B, wherein the vent hole 200B connects the accommodating cavity 100A with the external environment of the fluid packaging bag, so that the packaging material packaged in the accommodating cavity 100A can contact with the external environment through the vent hole 200B to perform moderate breathing activity. That is, when the fluid packing bag is used for packing fresh products such as vegetables and fruits, the air of the environment can be provided to the fresh products such as fruits and vegetables through the air holes 200B, so that it can perform moderate aerobic respiration to prevent it from performing anaerobic respiration to cause decay of the vegetables or fruits, thereby prolonging the fresh-keeping time of the fresh products such as fruits or vegetables. It is worth mentioning that the hole sealing seam 201B is correspondingly disposed at a position close to the edge of the ventilation hole 200B, which connects the two layers of fluid storage films illustrated in the figure by plastic sealing. In the preferred embodiment of the present invention, the fluid packing bag has two vents 200B, wherein the two vents 200B are symmetrically disposed on the front main sidewall 101a and the rear main sidewall 101B of the fluid packing bag, respectively. Specifically, the two air holes 200B are respectively disposed inside the two sealing seams 201B. It will be understood by those skilled in the art that the locations of the vent 200B and the hole sealing seam 201B of the preferred embodiment of the present invention are provided only as examples, and the vent 200B and the hole sealing seam 201B can also be implemented in other suitable locations of the front main sidewall 101a and the rear main sidewall 101B, and the present invention is not limited in this respect. The hole-sealing seam 201 can be used to conveniently form the containing cavity 101C for containing fresh products therein when the fluid cushion body 10C is filled with fluid, and the opening 102C thereof can close the opening 102C due to the expansion of the fluid storage unit 13A of the fluid packaging bag, but the containing cavity 101C can communicate with the external environment through the ventilation hole 200B, thereby preventing the fresh products from breathing without oxygen.

It will be understood by those skilled in the art that the vent 200B may be disposed on the front main sidewall 101a and the rear main sidewall 101B of the fluid packaging bag, respectively, or may be disposed on the front main sidewall 101a or the rear main sidewall 101B of the fluid packaging bag. That is, the ventilation holes 200B may be respectively disposed on both sides of the fluid packaging bag, or may be disposed only on one side of the fluid packaging bag, which is not limited in the present invention.

In addition, in this preferred embodiment of the present invention, the airing hole 200B is implemented in a circular shape. It will be understood by those skilled in the art that the vent 200B can be implemented in any other shape such as a rectangle, a triangle, a cross, etc., and can be implemented in different sizes as required, and the invention is not limited in these two aspects.

It will be understood by those skilled in the art that the airing holes 200B may be symmetrically formed at the front and rear main sidewalls 101a and 101B.

It is worth mentioning that the fluid packaging bag may further have 4 ventilation holes 200B, as shown in fig. 22 to 25; 6 ventilation holes 200B, as shown in fig. 26 to 27; 8 ventilation holes 200B, as shown in fig. 28 to 31; and 21 ventilation holes 200B as shown in fig. 32 to 33, which are not limited in the present invention. The ventilation holes 200B may be implemented in various shapes, sizes, numbers and arrangements according to the need, but the present invention is not limited in these respects.

Fig. 34-37 show a third preferred embodiment of the fluid packaging bag of the present invention, wherein the fluid packaging bag includes at least one fluid buffering body 10C, that is, a three-dimensional packaging bag is formed by one fluid buffering body 10C or a plurality of fluid buffering bodies 10C are connected by plastic sealing, such as bonding or heat sealing, to form the three-dimensional packaging bag. In the example of the present invention shown in fig. 34 to 37, it is formed by one such fluid cushion body 10C. More specifically, referring to fig. 34 and 35, the fluid cushion body 10C includes at least two fluid storage films 11 and 12 formed into the three-dimensional packaging bag including one or more connected fluid storage units 13C through a series of planar plastic sealing seams 30C and three-dimensional plastic sealing seams 40C, and each fluid storage unit 13C forms a fluid storage chamber 14C for storing fluid therein.

It will be understood by those skilled in the art that the planar seam 30C is used to mold the multi-layer film to form a planar cushion material as shown in fig. 34, and the three-dimensional seam 40C is used to further mold the planar cushion material to form the fluid-filled package into the three-dimensional packaging device having a three-dimensional configuration and capable of containing the packaged article, as shown in fig. 29. The planar seam 30C and the three-dimensional seam 40C may be formed by bonding or heat sealing the plurality of films together, and preferably, in this embodiment, the planar seam 30C and the three-dimensional seam 40C may be formed by a heat sealing process.

As shown in fig. 34, the planar molding slit 30C further includes at least one dividing slit 31C, and in the preferred embodiment of the present invention, the dividing slits 31C are implemented in two rows, respectively disposed at both sides of the fluid cushion body 10C to become side boundary slits of the fluid cushion body 10C. That is, the separation slit 31C connects and seals the fluid storage membrane 11 and the fluid storage membrane 12 together. The fluid storage unit 13C may have various shapes such as a bar shape, a circular shape, a polygonal shape, or other irregular shapes, and the present invention is not limited in this respect. In the example shown in fig. 34 to 37, the fluid packing bag includes one fluid storage unit 13, and the dividing slits 31C on both sides form side boundary slits, and the fluid storage chamber 14C is formed between two rows of the dividing slits 31C.

As shown in fig. 34, the planar plastic seam 30C further comprises a continuously sealed side seam 32C on the top and bottom sides of the fluid cushion body 10C and a continuously sealed main channel seam 33C on the top side adjacent to the side seam 32C, wherein the main channel 151C is formed between the side seam 32C and the main channel seam 33C on the top side.

It will be appreciated that the edge seal 32C is formed by a plastic molding process such as bonding or heat sealing and sealingly connects the two fluid storage films 11 and 12. The main passage sealing slit 33C is formed by a plastic molding process such as bonding or heat sealing and connects two layers of the fluid storage films 11 and 12 and two layers of the valve films 21C and 22C, respectively. For example, the main passage sealing seams 33C formed at the upper and lower sides by one heat-sealing process heat-seal the fluid storage film 11 and the valve film 21, and heat-seal the fluid storage film 12 and the valve film 22, respectively, and heat-seal the valve films 21 and 22 at positions other than the positions corresponding to the fluid passages 23C.

As shown in fig. 34, the fluid cushion body 10C includes one fluid storage unit 13C and is arranged in the longitudinal direction. The main passage unit 15C is arranged in the lateral direction and is integrally formed with the fluid storage unit 13C. It is worth mentioning that the fluid packaging bag may have one or more of the fluid filling valves 20C, and in the preferred embodiment of the present invention, the fluid packaging bag has a plurality of the fluid filling valves 20C to form a plurality of fluid filling passages, thereby increasing the speed and efficiency of fluid filling. In another embodiment of the present invention, the fluid packaging bag may also have a fluid filling valve 20C, and the present invention is not limited in this respect.

It is worth mentioning that when the fluid packaging bag is implemented with a fluid filling valve 20C, the fluid can enter the fluid storage chamber 14C through the main passage 151C and the fluid filling valve 20C in order. In another embodiment of the present invention, the fluid packaging bag can be implemented without the main channel 151C, wherein the fluid cushioning material passes directly through the fluid filling valve 20C into the fluid storage chamber 14C.

The fluid storage unit 13C extending in the longitudinal direction as shown in fig. 34 is adapted to be folded in half to obtain a structure in which two folded parts of the storage unit 13C are folded in half to each other as shown in fig. 35, so that the fluid cushion body 10C forms a front side wall 10a and a rear side wall 10b, and then edge portions of the front side wall 10a and the rear side wall 10b on the left and right sides of the fluid cushion body 10C are connected by the three-dimensional plastic-sealed seams 40C on the left and right sides, so that after the fluid cushion body 10C is filled with fluid, the fluid cushion body 10C forms a housing chamber 101C having an opening 102C through which a packaged article is adapted to be put into the housing chamber 101C and stored in the housing chamber 101C.

In this embodiment, the fluid buffering body 10C is provided with two rows of the three-dimensional plastic sealing seams 40C, wherein the three-dimensional plastic sealing seams 40C are continuously plastic-sealed, that is, the three-dimensional plastic sealing seams 40C hermetically seal two sides of the front side wall 10a and the rear side wall 10b, as shown in fig. 34 and 35. The three-dimensional plastic sealing seam 40C may also be an intermittent plastic sealing, that is, the three-dimensional plastic sealing seam 40 intermittently connects the front sidewall 10a and the rear sidewall 10b, so as to form at least one through seam between each intermittent front sidewall 10a and rear sidewall 10 b. Thus, air in the external environment can enter the accommodating cavity 101C through the through seam. When this fluid packaging bag is used for packing the fresh product like vegetable and fruit, should hold this fresh product in the chamber 101C in and just can carry out the aerobic respiration of moderate degree like fruit and vegetable to restrain to a certain extent that the fresh product of being packed carries out anaerobic respiration, thereby prolong the fresh-keeping period of this fresh product.

It should be noted that, when the three-dimensional plastic sealing seam 40C may be an additional independent plastic sealing seam, or may be formed simultaneously with the separation seams 31C on the left and right sides of the fluid buffering body 10C by the same heat sealing process, or the separation seam 31C is not formed in the planar plastic sealing step, but the three-dimensional plastic sealing seam 40C is formed in the three-dimensional plastic sealing step, and at this time, the three-dimensional plastic sealing seam 40C is continuously plastic-sealed to seal the fluid storage chamber.

As shown in fig. 34 to 37, the fluid cushioning body 10C is further provided with a plurality of sets of hole seals 201C arranged at intervals from each other, and when the fluid cushioning body 10C is folded in half to form the front and rear side walls 10a and 10b, the respective hole seals 201C of each set of hole seals 201C are positioned correspondingly. That is, each set of hole sealing slits 201C includes at least one hole sealing slit 201C that is mold-coupled to the fluid storage films 11 and 12 of the front sidewall 10a and at least one hole sealing slit 201C that is mold-coupled to the fluid storage films 11 and 12 of the rear sidewall 10b, and both are formed on the front and rear sides of the fluid packing bag and correspond in position to each other.

As shown in fig. 34 to 37, in this example, the fluid buffering body 10C is provided with 10 hole sealing seams 201C along the longitudinal direction, wherein the hole sealing seams 201C are in plastic-sealing connection with the fluid storage films 11 and 12 of the fluid buffering body 10C. After the fluid cushion body 10C is three-dimensionally molded, 5 hole sealing seams 201C are respectively formed on the front side and the rear side of the fluid cushion body 10C, so as to form 5 sets of corresponding hole sealing seams 201C, and the front side and the rear side of the fluid packaging bag formed by the fluid cushion body 10C are approximately symmetrical. Such symmetrically disposed hole seals 201C are capable of holding an object to be packaged, such as an apple, between the corresponding two hole seals 201C when the fluid packaging bag is filled with the fluid cushioning material, thereby further preventing the object to be packaged from moving within the receiving cavity 101C and achieving a predetermined positioning effect.

In the example of fig. 34 to 36, each of the hole sealing seams 201C is located at a middle position of the fluid storage unit 13C, a communication passage 133C is formed on each of both sides of each of the hole sealing seams 201C, and a fluid buffer section 134C is formed between two adjacent hole sealing seams 201C. That is, the shape and position of the hole sealing seam 201C do not affect the fluid cushion body 10C to form the fluid storage unit 13C integrally connected. That is, when the fluid packing bag is filled with the fluid cushioning material, the fluid cushioning material can sufficiently fill the fluid cushioning body 10C through the communication passage 133C, thereby performing a relatively sufficient cushioning effect on the packed article.

In the preferred embodiment of the present invention, the hole sealing seam 201C is implemented in a circular ring structure, i.e., an annular sealing seam is formed by bonding or heat sealing, wherein the inner portion of the annular hole sealing seam 201C cannot be filled with the fluid buffer material. It is worth mentioning that when the fluid cushion body 10C is filled with the fluid cushion material, the portion of the fluid cushion body 10C corresponding to the communication path around the annular hole sealing seam 201C is expanded due to the filling of the fluid cushion material, so as to support and partition the packing object such as apple and the like in the space between the sets of hole sealing seams 201C, thereby further preventing the packed object from moving inside the accommodating chamber 101C.

As will be appreciated by those skilled in the art, the aperture seal 201C is implemented as a planar molding seal in this embodiment, i.e., the aperture seal 201C is formed without being three-dimensionally molded. In another modification, the hole sealing seam 201C may also be performed in a three-dimensional molding step, that is, the fluid cushion body 10C is folded in half to form the front and rear side walls 10a and 10b, and then the three-dimensional molding seam 40C and the hole sealing seam 201C are formed by a molding machine, and in the process of forming the hole sealing seam 201C, for example, in a heat sealing process, a heat-resistant blocking device is disposed in the accommodating chamber 101C to prevent an inner fluid storage film, such as the fluid storage film 12C, from being heat-sealed and connected by the hole sealing seam 201C on the inner surface thereof after being folded in half, that is, the hole sealing seam 201C heat-seals only the two fluid storage films 11 and 12 on one side of the fluid cushion body 10C, but does not heat-seal and connect the four films into a whole, thereby ensuring that the accommodating chamber 101C is continuously and penetratively formed. Or the inner surface of the inner fluid storage film 11/12 is attached to a heat resistant object similar to the heat resistant layer 24C to prevent its inner surfaces from being heat sealed together.

In the preferred embodiment of the present invention, each of the hole sealing seams 201C is a plastic block and has a circular shape, and those skilled in the art will understand that the hole sealing seams 201C may also have a triangular shape, or other polygonal shapes such as a quadrangle, a pentagon, a hexagon, etc., and the present invention is not limited in this respect.

As shown in fig. 35, the fluid cushion body 10C is folded in half, the fluid storage film 11C is located on the outer side, and the fluid storage film 12 is located on the inner side to form the accommodating chamber 101C. Further, as shown in fig. 37, after the fluid cushion body 10C is filled with the fluid cushion material, a sub-chamber 1011C is formed near the position between the hole seals 201C of each set, and a space 1012C is formed near the position between the fluid cushion sections 134C, that is, the accommodating chamber 101C is formed by alternately forming the sub-chamber 1011C and the space 1012C. When a plurality of packaged articles are placed in the containing cavity 101C and the fluid cushion material is filled in the fluid cushion body 10C, the inner surfaces of the fluid storage films 12C are adjacent to each other and attached to the packaged articles, so that the packaged articles are stably retained in the sub-packaging chamber 1011C. Because the fluid buffering section 134C is filled with fluid, the space 1012C is formed between the expanded portions thereof, so that due to the blocking effect of the expanded fluid buffering section 134C, the packaged product in one of the sub-compartments 1011C will not easily cross the space 1012C and reach another sub-compartment 1011C, causing collision to another packaged product in another sub-compartment 1011C, thereby preventing the packaged products from colliding with each other in the accommodating cavity 101C and causing damage. It will be appreciated that the width D of the space 1012C is less than the thickness W of the packaged item, thereby preventing the packages from crossing the space 1012C and colliding with the adjacent packages, resulting in damage to the packages.

It will be appreciated that the location of adjacent sets of the positioning seams 38 substantially matches the size of the packaged product, and the distance between adjacent sets of the hole seals 201C is slightly greater than the size of the packaged product, and the distance between the hole seals 201C on the bottom side of the fluid packaging bag and the fold line on the bottom side is substantially less than the size of the packaged product, so as to form the dispensing chamber 1011C near the location corresponding to the hole seals 201C. When the fluid cushion body 10C of the fluid packaging bag is not filled with fluid yet at the time of packaging, after a plurality of the packaged articles are put into the accommodating cavity 101C from the opening 102C, the fluid cushion material is filled into the fluid packaging bag, and at this time, the fluid cushion material enters the fluid storage chamber 14C, so that each fluid cushion section 134C is filled with the fluid cushion material to expand and bulge to press against the outer surface of each corresponding packaged article, thereby forming the spacing space 1012C to space two adjacent packaged articles.

As shown in fig. 34, the fluid packaging bag further has at least one vent hole 200C, wherein the vent hole 200C connects the accommodating cavity 100C with the external environment of the fluid packaging bag, so that the package packed in the accommodating cavity 100C can contact with the external environment through the vent hole 200C. That is, when the fluid packing bag is used for packing fresh products such as vegetables and fruits, the air in the external environment can be provided to the fresh products such as fruits and vegetables through the air holes 200C, so that it can perform moderate aerobic respiration to prevent it from performing anaerobic respiration to cause decay of the vegetables or fruits, thereby prolonging the fresh-keeping time of the fresh products such as fruits or vegetables. In addition, because this fluid packaging bag can effectively keep fresh this giving birth to bright product, consequently, give birth to bright product and need not cold-stored fresh-keeping when transportation or storage, consequently practiced thrift the transportation and the storage cost of giving birth to bright product greatly.

Specifically, the vent hole 200C is disposed on the fluid buffering body 10 to penetrate the fluid storage films 11 and 12 of the fluid buffering body 10, thereby communicating the accommodating chamber 100C with the external environment. Further, the hole sealing seam 201C is disposed at an edge portion of the vent hole 200C, i.e., the vent hole 200C is formed inside the hole sealing seam 201C. It is worth mentioning that, in the preferred embodiment of the present invention, the fluid packing bag has ten vents 200C, wherein the ten vents 200C are respectively symmetrically disposed on the front main sidewall 101a and the rear main sidewall 101b of the fluid packing bag. It will be understood by those skilled in the art that the locations where the ventilation holes 200C and the hole sealing slits 201C are disposed in the preferred embodiment of the present invention are merely examples, and the ventilation holes 200C and the hole sealing slits 201C may also be implemented in other locations of the front main sidewall 101a and the rear main sidewall 101b, and the present invention is not limited in this respect.

It will be understood by those skilled in the art that the vent 200C may be disposed on the front main sidewall 101a and the rear main sidewall 101b of the fluid packaging bag, respectively, or may be disposed on the front main sidewall 101a or the rear main sidewall 101b of the fluid packaging bag. That is, the ventilation holes 200C may be respectively disposed on both sides of the fluid packaging bag, or may be disposed only on one side of the fluid packaging bag, which is not limited in the present invention.

In addition, in this preferred embodiment of the present invention, the airing hole 200C is implemented in a circular shape. It will be understood by those skilled in the art that the vent 200C may be implemented in any other shape such as a rectangle, a triangle, a cross, etc., and may be implemented in different sizes as required, and the invention is not limited in these two aspects.

It will be understood by those skilled in the art that the airing holes 200C may be symmetrically formed on the front and rear main sidewalls 101a and 101 b.

It should be noted that, the fluid packaging bag may further have 4 ventilation holes 200C, 6 ventilation holes 200C, 8 ventilation holes 200C, etc. according to the requirement, the present invention is not limited thereto, wherein the ventilation holes 200C are symmetrically disposed on two corresponding sides of the fluid buffering body 10C. It should be noted that the ventilation holes 200C may be implemented in different shapes, sizes, numbers and arrangements according to the requirement, and the present invention is not limited in these respects.

As shown in fig. 38, according to a fourth preferred embodiment of the present invention, in this embodiment, the structure is similar to that of the third embodiment described above, except that the fluid packing bag has a single fluid filling valve 20 formed of two valve films for filling the fluid cushion body 10C with fluid.

Fig. 38 shows a fluid packaging bag according to a fourth preferred embodiment of the present invention, which includes at least one fluid cushion body 10D, that is, a three-dimensional packaging bag formed by one fluid cushion body 10D or a plurality of fluid cushion bodies 10D is formed by plastic sealing, such as bonding or heat sealing. In the preferred embodiment of the present invention, the fluid packaging bag is formed in two parts by one fluid cushion body 10D, each part having a structure of a front side wall 101D and a rear side wall 102D, wherein the front side wall 101D and the rear side wall 102D form a containing chamber 100D for packaging a product to be packaged. That is, when the fluid packaging bag has two accommodating cavities 100D, the opening 300D is located in the middle of the fluid cushion body 10D.

The fluid packing bag further has at least one vent hole 200D, wherein the vent hole 200D communicates the accommodating cavity 100D with the external environment of the fluid packing bag, so that the packing material packed in the accommodating cavity 100D can contact with the external environment through the vent hole 200D. That is, when the fluid packing bag is used for packing fresh products such as vegetables and fruits, the air in the external environment can be provided to the fresh products such as fruits and vegetables through the air holes 200D, so that it can perform moderate aerobic respiration to prevent it from performing anaerobic respiration to cause decay of the vegetables or fruits, thereby prolonging the fresh-keeping time of the fresh products such as fruits or vegetables. In addition, because this fluid packaging bag can effectively keep fresh this giving birth to bright product, consequently, give birth to bright product and need not cold-stored fresh-keeping when transportation or storage, consequently practiced thrift the transportation and the storage cost of giving birth to bright product greatly.

Specifically, the vent hole 200C is disposed on the fluid buffering body 10D to penetrate the fluid storage films 11 and 12 of the fluid buffering body 10D, thereby communicating the accommodating chamber 100D with the external environment. Further, the fluid packaging bag further includes at least one hole sealing seam 201D, and the vent hole 200D is located in the hole sealing seam 201D.

It should be noted that, in the preferred embodiment of the present invention, the upper and lower portions of the fluid packaging bag are respectively provided with eight ventilation holes 200D, wherein the eight ventilation holes 200D are respectively symmetrically disposed on the front sidewall 101D and the rear sidewall 102D of the fluid packaging bag. It will be understood by those skilled in the art that the locations of the vent 200D and the hole seal 201D are provided by way of example only, and the present invention is not limited in this respect.

In addition, in this preferred embodiment of the present invention, the airing hole 200D is implemented in a circular shape. It will be understood by those skilled in the art that the ventilation holes 200D may be implemented in any other shapes such as rectangle, triangle, cross, etc., and may be implemented in different sizes, numbers and arrangements according to the requirement, and the invention is not limited in these respects.

It is worth mentioning that the eight ventilation holes 200D can be symmetrically disposed on the front sidewall 101D and the rear sidewall 102D.

It should be noted that the fluid packaging bag may further have 4 ventilation holes 200D, 18 ventilation holes 200D, etc. according to the requirement, which is not limited in the present invention.

Referring to fig. 40 to 42, a fluid packaging bag according to a sixth preferred embodiment of the present invention includes at least one fluid buffering body 10E, i.e. a three-dimensional packaging bag is formed by one fluid buffering body 10E or a plurality of fluid buffering bodies 10E are connected by plastic sealing, such as bonding or heat sealing, to form the three-dimensional packaging bag. In the preferred embodiment of the present invention, the fluid packaging bag is formed by a fluid cushion body 10E to have a structure of a front side wall 101E and a rear side wall 102E, wherein the front side wall 101E and the rear side wall 102E form two containing cavities 100E for packaging the product to be packaged. That is, when the fluid packing bag is filled with the fluid cushioning material, the fluid packing bag forms a U-shaped space structure having a front side wall 101E and a rear side wall 102E.

As shown in fig. 40, the front sidewall 101E and the rear sidewall 102E are molded with an intermediate plastic to form two accommodating cavities 100E and two openings 300E therebetween, wherein the article to be packaged is placed in the accommodating cavity 100E through the opening 300E.

The fluid packaging bag further has at least one vent hole 200E, wherein the vent hole 200E connects the accommodating cavity 100E with the external environment of the fluid packaging bag, so that the package packed in the accommodating cavity 100E can contact with the external environment through the vent hole 200E. That is, when the fluid packing bag is used for packing fresh products such as vegetables and fruits, the air in the external environment can be provided to the fresh products such as fruits and vegetables through the air holes 200E, so that it can perform moderate aerobic respiration to prevent it from performing anaerobic respiration to cause decay of the vegetables or fruits, thereby prolonging the fresh-keeping time of the fresh products such as fruits or vegetables. In addition, because this fluid packaging bag can effectively keep fresh this giving birth to bright product, consequently, give birth to bright product and need not cold-stored fresh-keeping when transportation or storage, consequently practiced thrift the transportation and the storage cost of giving birth to bright product greatly.

Specifically, the vent hole 200E is disposed in the fluid buffer body 10E to penetrate the fluid storage films 11 and 12 of the fluid buffer body 10E, thereby communicating the accommodating chamber 100E with the external environment. Further, the fluid packaging bag further comprises at least one hole sealing seam 201E, wherein the vent hole 200E is located in the hole sealing seam 201E.

It is worth mentioning that, in the preferred embodiment of the present invention, the fluid packaging bag has eight vents 200E, wherein the eight vents 200E are symmetrically disposed on the front sidewall 101E and the rear sidewall 102E of the fluid packaging bag, respectively. It will be understood by those skilled in the art that the positions of the vent 200E and the hole seal 201E are provided only as examples, and the vent 200E and the hole seal 201E may also be implemented to be provided at suitable positions of the front sidewall 101E and the rear sidewall 102E. For example, the eight ventilation holes 200E can be disposed on the front sidewall 101E, and the invention is not limited in this respect.

In addition, in this preferred embodiment of the present invention, the airing hole 200E is implemented in a circular shape. It will be understood by those skilled in the art that the ventilation holes 200E can be implemented in any other shapes such as rectangle, triangle, cross, etc., and can be implemented in different sizes, numbers and arrangements according to the requirement, and the invention is not limited in these respects.

In another embodiment of the present invention, the fluid packaging bag further comprises at least one cover 103E, wherein the cover 103E extends upward from the rear sidewall 102E. After the object to be packaged is placed in the containing cavity 100E through the opening 300E, the cover 103E is adapted to be bent toward the opening 300E to enclose the package in the containing cavity 100E, as shown in fig. 42.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims (44)

1. A fluid packaging bag, its characterized in that includes at least a fluid buffering body that forms by two-layer at least fluid storage film, wherein the fluid buffering body is including storing a fluidic at least fluid storage unit, wherein the fluid buffering body has an at least open-ended chamber of holding through buckling and plastic envelope formation to be used for holding an at least packing article, the fluid packaging bag has at least one intercommunication hold the bleeder vent and an at least hole joint seal of chamber and external environment, wherein the bleeder vent is located in the hole joint seal, hole joint seal plastic envelope is connected two-layer at least fluid storage film.

2. The fluid packaging bag of claim 1, comprising a front side wall and a back side wall, wherein the front side wall and the back side wall are plastically connected by two side sealing seams to form the containing cavity with an opening.

3. The fluid packing bag as claimed in claim 2, wherein at least two of the airing holes are symmetrically formed at the front sidewall and the rear sidewall.

4. The fluid packing bag as claimed in claim 3, which has one of four, six, eight, ten, twelve, fourteen, sixteen and eighteen vent holes, wherein the vent holes are respectively provided in the front and rear side walls in front and rear symmetry in two places.

5. The fluid packing bag as claimed in claim 4, wherein the airing holes are uniformly arranged in parallel on the front and rear sidewalls.

6. The fluid packing bag as claimed in claim 5, wherein the airing holes are divided into two rows longitudinally provided on the front and rear sidewalls.

7. The fluid packing bag as claimed in claim 3, which has twenty-one vents, wherein the vents are respectively disposed on the front sidewall and the rear sidewall in a front-to-rear symmetrical manner in two places.

8. The fluid packing bag as claimed in claim 7, wherein the airing holes are uniformly arranged in parallel on the front and rear sidewalls.

9. The fluid packing bag as claimed in claim 8, wherein the airing holes are divided into three rows and longitudinally arranged on the front and rear sidewalls.

10. A fluid packaging bag as claimed in any one of claims 4 to 6, wherein the aperture seal is circular or triangular or square.

11. A fluid packaging bag as claimed in any one of claims 7 to 9, wherein the aperture seal is circular or triangular or square.

12. The fluid packaging bag of claim 2, further comprising at least one compression seam, wherein each compression seam is spaced apart from the side seal seam to form a cushion between the compression seam and the side seal seam.

13. The fluid packaging bag of claim 2, further comprising at least one compression seam, wherein the compression seam extends inboard from the side seal seam.

14. The fluid packing bag of claim 12, wherein each of the compression seams and the side seams are spaced apart from each other, and a front left wall, a front right wall, a rear left wall and a rear right wall are formed on both sides of the front wall and the rear wall between the compression seams and the side seams, respectively, wherein the front left wall and the rear left wall are interconnected to form a left cushion body, and the front right wall and the rear right wall are interconnected to form a right cushion body.

15. A fluid packaging bag as claimed in claim 12, wherein the side seal is provided with a pinch seam on the inside.

16. A fluid packaging bag as claimed in claim 14, wherein the side seal is provided with a pinch seam on the inside.

17. A fluid packaging bag as claimed in claim 13, wherein the stitching is spaced inwardly of the side seals.

18. The fluid packaging bag as claimed in claim 2, which includes at least one row of the shaping slits, wherein the shaping slits are disposed at intervals between the front side wall and the rear side wall, and wherein a communication passage is formed between every two adjacent shaping slits.

19. The fluid packaging bag of claim 18, wherein the shaped seam is crescent shaped.

20. A fluid packaging bag according to any one of claims 12 to 13, wherein the press seam is in the shape of a circular arc.

21. The fluid packaging bag of claim 14, wherein the pinch-seam is rounded.

22. The fluid packaging bag of claim 15, wherein the pinch seam is rounded.

23. The fluid packaging bag of claim 16, wherein the pinch seam is rounded.

24. The fluid packaging bag of claim 17, wherein the pinch seam is rounded.

25. A fluid packaging bag according to any one of claims 12 to 13, wherein the press seam is circular or square or triangular.

26. A fluid packaging bag as claimed in claim 14, wherein the press seam is circular or square or triangular.

27. A fluid packaging bag as claimed in claim 15, wherein the press seam is circular or square or triangular.

28. A fluid packaging bag as claimed in claim 16, wherein the press seam is circular or square or triangular.

29. A fluid packaging bag as claimed in claim 17, wherein the press seam is circular or square or triangular.

30. A fluid packaging bag according to claim 12, wherein the press-fit seam is linear.

31. A fluid packaging bag according to claim 14, wherein the press-fit seam is linear.

32. A fluid packaging bag according to claim 15, wherein the press-fit seam is linear.

33. A fluid packaging bag according to claim 16, wherein the press-fit seam is linear.

34. The fluid packing bag of claim 12, further comprising at least two positioning slits, wherein the positioning slits are symmetrically disposed on the front sidewall and the rear sidewall, respectively.

35. The fluid packing bag of claim 13, further comprising at least two positioning slits, wherein the positioning slits are symmetrically disposed on the front sidewall and the rear sidewall, respectively.

36. The fluid packaging bag as claimed in claim 17, further comprising at least two positioning slits, wherein the positioning slits are symmetrically disposed on the front sidewall and the rear sidewall, respectively.

37. A fluid packaging bag as claimed in claim 34, wherein the positioning slit is circular or square or triangular in shape.

38. A fluid packaging bag as claimed in claim 35, wherein the positioning slit is circular or square or triangular in shape.

39. A fluid packaging bag as claimed in claim 36, wherein the positioning slit is circular or square or triangular in shape.

40. The fluid packaging bag of claim 14, wherein the bottom portion further comprises at least one of said compression seams to form a front bottom sidewall and a rear bottom sidewall, wherein said front bottom sidewall and said rear bottom sidewall are in communication with each other to form a bottom cushion.

41. A fluid packaging bag as claimed in any one of claims 2 to 9, wherein one or more of said pockets are formed between said front and rear side walls.

42. A fluid packing bag according to any one of claims 2 to 9, comprising two of said front side walls and two of said rear side walls, said two rear side walls integrally extending to form two of said accommodating chambers communicating with said opening.

43. The fluid packing bag as claimed in any one of claims 1 to 9, further comprising at least one fluid filling valve formed of at least two valve films for filling the fluid storage unit with fluid and functioning as a check valve.

44. A fluid packaging bag as claimed in any one of claims 1 to 9, comprising a single fluid filling valve for filling the fluid storage unit with fluid.

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