CN101462624A - Vacuum suction type gas packaging bag and packaging method thereof - Google Patents

Abstract

The invention provides a vacuum suction type gas packaging bag and a packaging method thereof, wherein the vacuum suction type gas packaging bag comprises a gas column sheet and an accommodating space, wherein the gas column sheet is provided with an inflation channel; the air column piece comprises two outer membranes and two inner membranes arranged between the two outer membranes, at least one strip of heat-resistant material is coated in the two inner membranes, the two outer membranes and the two inner membranes are bonded by heat sealing, and at least one air inlet is formed at the position of the heat-resistant material and between the two inner membranes and enables air to enter the air column piece from the inflation channel; the air column sheet is bent to form a first buffer wall and a second buffer wall which are communicated with each other, two side edges of the first buffer wall and the second buffer wall are bonded by heat sealing to form the accommodating space, and the accommodating space is used for accommodating articles. After the air column is inflated and expanded and the containing space is vacuumized, the first buffer wall and the second buffer wall tightly tighten the articles, so that the articles are fixed in the containing space and cannot swing along with the gas packaging bag, and the gas packaging bag cannot be punctured.

Description

Vacuum suction beam type gas packaging bag and packaging method thereof

technical field

The invention relates to a gas packaging bag and a packaging method thereof, in particular to a vacuum suction beam type gas packaging bag and a packaging method thereof.

Background technique

Generally, when packing items, the items will be placed directly into the carton, but because the carton can only pack the items and has no cushioning protection function, the items are easily damaged due to shaking during transportation, so cushioning materials are often placed in the carton during packaging In order to improve the buffer protection function of the carton. A common method is to stuff foam between the article and the carton, and use the softness of the foam to provide cushioning and protection for the article. However, the foam is expensive, which increases the packaging cost and does not meet the economic effect, and the foam is not easy to handle after use, which is easy to cause environmental problems. Furthermore, although the foam can be closely attached to the surface of the article, its anti-collision effect is not good, and the article is often damaged due to impact.

Another common cushioning material is foam plastic (that is, a material formed by high-temperature foaming of polystyrene, also known as "Styrofoam"). First, wrap the item with foam plastic and then put it in a carton To avoid collisions of items during handling. Although foam plastics can prevent items from being damaged by shaking, foam plastics are fluffy and take up a lot of space, and are not easy to be decomposed by microorganisms. When incinerated, they will release poisonous gas that is harmful to the human body, causing serious environmental pollution. Today, foam is not an ideal cushioning material. Furthermore, items of different sizes and sizes cannot share foam plastic packaging, and foam plastics of different sizes must be used, which not only causes waste of resources, but also increases the packaging cost of the items.

In order to solve the above problems, a gas packaging bag made by heat-sealing and bonding two plastic films is produced, and the article can provide buffer protection to it when shaking. Although the gas packaging bag can provide better cushioning protection, when the item has a sharp angle or a hardware material with a sharp angle, it is easy to puncture the gas packaging bag due to the shaking of the item in the gas packaging bag. If there is a small hole in the gas packaging bag, the gas in the gas packaging bag will leak out, causing the gas packaging bag to lose the function of cushioning and protection, thereby increasing the packaging cost of the article. In order to solve this problem, the plastic film of the gas packaging bag can be strengthened or thickened to reduce the chance of being punctured by objects, but in the continuous mass production mode, it is impossible to strengthen or thicken a single side of the gas packaging bag. It is necessary to fully strengthen or thicken the plastic film of the gas packaging bag, resulting in a substantial increase in manufacturing costs and loss of market competitiveness.

It can be seen from this that how to provide good cushioning protection for items, avoid damage or scratches due to collisions during transportation, and solve the problem that gas packaging bags are easily punctured by items, thereby reducing the manufacturing cost of cushioning materials. A problem that those skilled in the art are eager to solve.

Contents of the invention

In order to overcome the above-mentioned defects of the prior art, the object of the present invention is to provide a vacuum suction jet gas packaging bag which can effectively cushion and protect articles.

The second object of the present invention is to provide a packaging method for vacuum suction jet gas packaging bags that can effectively cushion and protect articles.

In order to achieve the above-mentioned first purpose, the present invention provides a vacuum suction beam type gas packaging bag, which includes an air column sheet and an accommodating space provided with an inflatable channel; the air column sheet includes two outer films, and two For the two inner films between the outer films, at least one piece of heat-resistant material is coated inside the two inner films, and the second outer film and the second inner film are heat-sealed and bonded to form at least one inlet between the heat-resistant material and the two inner films. Gas port, the air inlet allows gas to enter the interior of the air column sheet from the inflatable channel; the air column sheet is bent to form two interconnected first buffer walls and second buffer walls, and the two sides of the first and second buffer walls are heated The accommodating space is enclosed by sealing and bonding, and the accommodating space is used for accommodating articles, and the accommodating space is evacuated so that the first and second buffer walls tighten the articles.

At least one gas channel is also heat-sealed between the two inner films, and each air inlet is connected to a gas channel, which is heat-sealed and bonded to the two inner films coated with heat-resistant materials and formed on the two inner films. Between the inner membrane; the gas enters the air column sheet through the inflatable channel, the air inlet and the gas channel.

The air-inflating channel is formed by heat-sealing and bonding two outer films or heat-sealing and bonding two inner films. The air column sheet includes at least one air column, and the air-inflating channel is located at one end of the air column.

The air column sheet is provided with a heat-pressed node and a ring portion, both of which are formed by heat-sealing and bonding two outer films, and each ring portion surrounds a heat-pressed node.

The air column sheet includes a plurality of side-by-side disconnected air columns, and each air column is provided with an air inlet; each of the air columns is provided with a heat-pressing node and a collar portion, and the heat-pressing node Both the ring part and the ring part are formed by heat-sealing and bonding two outer films, and each ring part surrounds a heat-pressed node.

The ring portions on the same air column communicate with each other.

For two adjacent air columns, the collar portion on one air column and the collar portion on the other air column are in a staggered arrangement.

The air column sheet only includes one air column on which a plurality of air inlets are arranged.

At least one cutting line running through the entire gas packaging bag is provided between the gas columns.

In order to achieve the above-mentioned second purpose, the present invention also provides a packaging method for a vacuum suction beam type gas packaging bag, which includes the following steps: Step 1: After coating a heat-resistant material between two inner films, the two inner films The film is placed between two outer films, and then the inner film and the outer film are heat-sealed and bonded to form an air column sheet. The air column sheet includes an air-filled channel, a heat-resistant material and an inlet The air port and the air inlet allow the gas to enter the interior of the air column sheet from the inflatable channel; step 2: bend the air column sheet to form the first buffer wall and the second buffer wall connected to each other; step 3: heat seal the first buffer wall and the second buffer wall The two sides of the second buffer wall form a storage space between the first buffer wall and the second buffer wall; Step 4: Put the item into the storage space; Step 5: Extract the gas in the storage space, The first buffer wall and the second buffer wall tighten the articles.

The first step also includes: after coating the heat-resistant material between the two inner films, bonding the two inner films by heat sealing to form at least one gas channel between the two inner films; each gas inlet is connected to a gas channel ; The gas enters the air column sheet through the inflatable channel, the air inlet and the gas channel.

In step 1, the air-filled channel is formed by heat-sealing and bonding two outer films or two inner films, and the air column sheet includes at least one air column, and the air-inflating channel is located at one end of the air column.

The first step also includes: forming hot-pressed joints on the air column sheet by heat-sealing and bonding the two outer films, and then heat-sealing and bonding the two outer films to form a ring portion on the air column sheet, each ring portion Surround a thermobar node.

The air column sheet includes a plurality of side-by-side air columns, and at least one cutting line that runs through the entire gas packaging bag is provided between the air columns; each air column is provided with an air inlet; Heat-sealing and bonding the two outer films to form a heat-pressing node and a ring portion, and each ring portion surrounds a heat-pressing node.

The air column sheet only includes one air column, and multiple air inlets are arranged on the air column.

In the fifth step, the accommodating space is evacuated into a vacuum or close to a vacuum with a vacuum assembly.

After the step one, it also includes: filling gas into the gas column sheet through the gas inlet.

After the step four, it also includes: filling gas into the gas column sheet through the gas inlet.

After the fifth step, it also includes: filling the air column sheet with gas through the air inlet.

After the fifth step, it also includes: heat-sealing the upper ends of the first buffer wall and the second buffer wall to close the opening of the accommodating space.

In the present invention, the article is accommodated in the accommodating space, and when the air column is inflated, the first buffer wall and the second buffer wall will tighten the article, so that the article is fixed in the accommodating space without being blown by the gas. Even if the packaging bag shakes, the gas packaging bag will not be punctured even if the item has sharp corners or hardware materials with sharp corners. This not only strengthens the cushioning protection for the item, but also solves the problem that the gas packaging bag is easily punctured by the item .

Description of drawings

Figure 1 is a three-dimensional schematic view of the first embodiment of the gas packaging bag of the present invention after inflation;

Figure 2 is a plan view of the first embodiment of the present invention before inflation;

3A is a cross-sectional view of the first embodiment of the present invention after inflation;

Figure 3B is a partially enlarged view of Figure 3A;

Fig. 4 is a cross-sectional view of the first embodiment of the present invention when vacuuming;

5 is a cross-sectional view of the first embodiment of the present invention after vacuuming;

6 is a plan view of the second embodiment of the present invention before inflation;

7 is a perspective view of the third embodiment of the present invention after inflation;

8 is a plan view of the fourth embodiment of the present invention before inflation;

Fig. 9 is a sectional view of the fourth embodiment of the present invention after inflation;

FIG. 10 is a cross-sectional view of the fourth embodiment of the present invention after vacuuming.

Detailed ways

First embodiment:

Fig. 1, Fig. 2, Fig. 3A, Fig. 3B, Fig. 4 and Fig. 5 show the first embodiment of the vacuum suction beam type gas packaging bag of the present invention.

The vacuum suction beam type gas packaging bag of the present invention includes: an air column sheet 2 provided with an inflatable channel 9 and an accommodating space 10 .

The air column sheet 2 includes at least one air column 20, each air column 20 includes an air inlet 2e, the air inlet allows gas to enter the air column 20 through the inflatable channel 9 to inflate the air column.

In the present invention, the air column sheet 2 includes two outer films 2a, 2b superimposed up and down, and two inner films 1a, 1b placed between the two outer films, and between the two inner films At least one strip of heat-resistant material 1c is coated. First use heat sealing means to form heat-seal points 2c on the inner and outer membranes, as shown in Figure 3B, the heat-sealed points make the outer membrane 2a and the inner membrane 1a adhere, and the outer membrane 2b and the inner membrane 1b adhere. The second outer film and the second inner film are then heat-sealed and bonded to form the air column sheet 2 . Each air column 20 is formed between the two outer membranes 2a, 2b. Since the heat-resistant material 1c is coated between the two inner membranes 1a and 1b, the air inlet 2e is formed at the heat-resistant material 1c and between the two inner membranes to communicate the gas supply column 20 with the outside. In addition, each gas inlet 2e is connected with a gas channel 14, and the gas channel 14 is formed between the two inner films by heat-sealing and bonding the two inner films after coating the heat-resistant material between them.

As shown in FIG. 1 , the above-mentioned inflatable channel 9 is located at one end of a plurality of air columns 20 arranged side by side, and the air inlet 2 e communicates with the air column 20 and the inflatable channel 9 . Wherein the inflatable channel 9 is a space through which gas can circulate formed by heat-sealing and bonding the two outer films 2a, 2b or heat-sealing and bonding the two inner films 1a, 1b, and an inflating port 9a is provided at one or both ends of the inflating channel 9 . When the gas entering the inflation port 9a expands the inflation channel 9, the two outer membranes 2a, 2b are pulled apart to open the gas inlet 2e, so that the gas enters the gas column 20 along the gas channel 14. After the air column 20 is inflated, the air pressure inside the air column 20 presses the two inner membranes 1a, 1b so that they are pressed tightly against the outer membrane 2a or 2b, or the two inner membranes may not be side-attached to the outer membrane 2a or 2b. It is suspended in the gas column 20 to cover the gas channel 14 to close the gas column 20, so that the gas in the gas column 20 does not leak out to achieve the effect of holding air.

The air column sheet 2 is bent to form two interconnected first buffer walls 21 and second buffer walls 22, and after the two sides of the first and second buffer walls are heat-sealed and bonded, the second buffer wall is formed. The accommodating space 10 surrounded by a buffer wall 21 and the second buffer wall 22 is used for accommodating articles 100. Vacuumizing the accommodating space 10 can make the first buffer wall 21 and the second buffer wall 22 tighten the articles 100. As shown in FIG. 4 , the user can use the vacuum assembly 5 to pump out the gas in the accommodating space 10 to make the accommodating space 10 into a near-vacuum state or a vacuum state.

As shown in Fig. 4 and Fig. 5, after the user puts the article 100 into the accommodating space 10, the article 100 can be tightened by the first buffer wall 21 and the second buffer wall 22, so that the article 100 can be fixed in the accommodating space 10, and then the accommodating space 10 is evacuated to strengthen the effect of the first buffer wall 21 and the second buffer wall 22 to tighten the article 100, so that the article 100 is fixed in the accommodating space 10 without being packaged with the gas. The bag shakes. After the vacuuming operation is completed, as shown in Figure 1, the opening of the accommodating space 10 is closed by bonding the upper ends of the first buffer wall 21 and the second buffer wall 22 with heat-sealing means, so that the article 100 cannot be removed from the accommodating space. Comes off in 10.

Therefore, the present invention fixes the article 100 in the accommodating space 10 without shaking with the gas packaging bag, and strengthens the buffer protection of the article 100 . In addition, when the item 100 has sharp corners or hardware materials with sharp corners, since the item 100 does not shake with the gas packaging bag, it can effectively prevent the gas packaging bag from being punctured by the sharp corners or sharp corners of the item.

In the present invention, the article 100 can be put into the accommodating space 10 first, and then the air column sheet 2 can be inflated, or the air column sheet 2 can be inflated first, and then the article can be placed after the air column sheet 2 is inflated and expanded 100 is placed in the accommodating space 10, and after the completion of inflation and placement of the article 100, the vacuuming operation is performed. In addition, the article 100 can also be put into the accommodating space 10 first, and then the air column sheet 2 is inflated after the accommodating space is evacuated.

Second embodiment:

Fig. 6 shows the second embodiment of the present invention. Wherein, the air column sheet 2 includes a plurality of parallel exhaust columns 20, and a cutting line 8 is provided between the air columns 20 and the air column 20, and the cutting line runs through the entire length of the gas packaging bag for users to cut along the cutting line 8. Cut, so that each air column 20 can be used independently, or cut the required number of air columns 20 according to the user's requirements, that is, cut the required quantity according to the size and size of the packaged goods. In addition, each air column 20 is provided with an air inlet 2e.

third embodiment

Fig. 7 shows the third embodiment of the present invention. Wherein, the air column sheet 2 only includes an air column 20, and is provided with a plurality of air inlets 2e on the air column sheet, so that gas enters the air column 20 along a plurality of air inlets 2e and a plurality of gas passages 14, so that the air column 20 quick inflation inflation.

Fourth embodiment

Figure 8, Figure 9 and Figure 10 show the fourth embodiment of the present invention. Wherein, the gas column 20 of the gas packaging bag is also provided with a heat-pressing node 20a and a ring portion 20b, and the heat-pressing node and the ring portion are all formed by heat-sealing and bonding the two outer films 2a, 2b, and each ring The sleeves 20b all surround a heat-press node 20a. The ring portions in each air column 20 communicate with each other. For two adjacent air columns, the collar portion on one air column and the collar portion on the other air column are in a staggered arrangement. And because the adjacent gas columns 20 are not connected to each other, the ring portions between the adjacent gas columns are not connected to each other either.

When the air column 20 is inflated, each collar portion 20 b is inflated with the air column 20 . As shown in Figure 9, the article 100 is embedded in the space formed by the heat-pressing node 20a in the accommodation space 10, and the periphery of the article is covered by the inflated ring portion, and then the accommodation space is extracted by the vacuum assembly 5 The gas inside 10 can not only prevent the item 100 from shaking with the gas packaging bag, but also strengthen the buffer protection of the item 100 .

The present invention also provides a packaging method for a vacuum suction beam type gas packaging bag, comprising the following steps:

Step 1: Make air column sheet 2

First coat at least one piece of heat-resistant material 1c between the two stacked inner films 1a and 1b, then place the two inner films between the two stacked outer films 2a and 2b, and heat seal them first Heat-sealing points 2c are formed on the inner and outer membranes, and the heat-sealing points make the outer membrane 2a and the inner membrane 1a adhere, and the outer membrane 2b and the inner membrane 1b adhere. Then heat seal the two outer films and the two inner films to form an air-filled channel 9, at least one air column 20, at least one air inlet 2e, at least one gas channel 14 between the two inner films and at the heat-resistant material 1c , and an inflation port 9a located at one or both ends of the inflation channel 9 . Thus, the air column sheet 2 is produced.

The gas inlets 2e are used to communicate the gas column 20 with the outside, and each gas inlet 2e is connected with a gas channel 14 , and the gas charging channel 9 is located at one end of the gas column 20 .

Step 2: Bending the air column sheet 2 to form the first buffer wall 21 and the second buffer wall 22 which communicate with each other.

The bent air column sheet 2 is U-shaped, that is, the first buffer wall 21 and the second buffer wall 22 form a U-shape.

Step 3: heat-sealing the two sides of the first buffer wall 21 and the second buffer wall 22 , so that the accommodating space 10 is formed between the first buffer wall and the second buffer wall.

Step 4: Put the object 100 into the accommodating space 10 .

Step 5: extract the gas in the accommodating space, so that the first buffer wall 21 and the second buffer wall 22 tighten the object 100 .

Among them, the user can use the vacuum assembly 5 to extract the gas in the accommodating space 10 to make the accommodating space 10 form a near vacuum state or a vacuum state, so that the first buffer wall 21 and the second buffer wall 22 tighten the article 100, thereby The article 100 is fixed in the accommodating space 10 without shaking with the gas packaging bag. Even if the article has sharp angles or hardware materials with sharp corners, it will not puncture the gas packaging bag, which greatly strengthens the protection of the article 100. buffer protection.

Step 6: After the vacuuming is completed, heat seal the upper ends of the first buffer wall 21 and the second buffer wall 22 to seal the opening of the accommodating space 10 so that the object 100 will not fall out of the accommodating space 10 .

In the present invention, after the user puts the article 100 into the accommodating space 10, the air is inflated into the gas packaging bag through the inflation channel 9, and the two outer membranes 2a, 2b are pulled outward to open the air inlet 2e, so that the inflation channel The gas in 9 enters the gas column 20 through the gas inlet 2e and along the gas channel 14, so that the gas column 20 is inflated and expanded. After the air column 20 is inflated, the air pressure in the air column 20 presses the two inner membranes 1a, 1b so that they are tightly pressed against the outer membrane 2a or 2b, or the two inner membranes may not be side-attached to the outer membrane 2a or 2b. Instead, it is suspended in the gas column 20 to cover the gas channel 14 and seal the gas column 20 so that the gas in the gas column 20 does not leak out to achieve the effect of air-holding.

In addition, the air column 20 of the present invention is also provided with a hot-pressed node 20a and a collar portion 20b, which are formed by heat-sealing and bonding the two outer films 2a, 2b. The portion 20b is formed outside the thermal compression node 20a, and each collar portion 20b surrounds each thermal compression node 20a. When the air column 20 is inflated and expanded, the object 100 is embedded in the space formed by the hot-press nodes 20 a in the accommodating space 10 , and the periphery of the object is covered by the collar portion 20 b. In addition, the ring portions 20b of the air column 20 are connected to each other, so when the air column 20 is inflated, each ring portion 20b in the air column is inflated along with the air column 20 .

In the present invention, the inflation channel 9 of the gas packaging bag can be formed by heat-sealing and bonding the two outer films 2a, 2b, or by heat-sealing and bonding the two inner films 1a, 1b.

The present invention enables the article 100 to be fixed in the accommodating space 10 without shaking with the gas packaging bag, which not only strengthens the buffer protection for the article 100, but also prevents the gas packaging bag from being pierced due to the shaking of the article 100. Additional reinforcement or thickening of the outer film 2a or 2b of the present invention greatly reduces the manufacturing cost of the gas packaging bag.

Although the technical content of the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any changes made by those skilled in the art without departing from the spirit of the present invention shall fall within the scope of the present invention.

Claims (20)

1, a kind of vacuum suction type gas packing bag is characterized in that, comprises the gas column sheet (2) and the accommodation space (10) that are provided with filling channel (9);

This gas column sheet (2) comprises two adventitias (2a, 2b) and places two inner membrances (1a, 1b) between two adventitias, at least be coated with a heat proof material (1c) in two inner membrances, two adventitias and two inner membrances are heat-sealed bonding, heat proof material (1c) locate and two in intermembranously be formed up to a few air intake (2e), this air intake makes gas enter gas column sheet inside from filling channel (9);

Gas column sheet (2) is bent the back and is formed two first buffer wall (21) that is interconnected and second buffer walls (22), the dual-side of first and second buffer wall is heat-sealed bonding and surrounds above-mentioned accommodation space (10), be used to accommodate article (100) in the accommodation space, be pumped into vacuum in this accommodation space and make first, second buffer wall girding articles.

2, vacuum suction type gas packing bag as claimed in claim 1, it is characterized in that, also heat-sealing is formed with at least one gas passage (14) between two inner membrances, each air intake (2e) all is connected with a gas passage (14), and to be that heat-sealing is bonding be coated with two inner membrances of heat proof material and be formed between two inner membrances this gas passage;

Gas enters the gas column sheet through filling channel (9), air intake (2e) and gas passage (14).

3, vacuum suction type gas packing bag as claimed in claim 1, it is characterized in that, described filling channel (9) is by heat-sealing bonding two adventitias (2a, 2b) or seal bonding two inner membrances (1a, 1b) and form, the gas column sheet comprises at least one gas column (20), and filling channel is positioned at an end of gas column.

4, vacuum suction type gas packing bag as claimed in claim 1, it is characterized in that, described gas column sheet (2) is provided with hot pressing node (20a) and ring sleeve portion (20b), and hot pressing node and ring sleeve portion are all formed by bonding two adventitias of heat-sealing, and each ring sleeve portion is all around a hot pressing node.

5, vacuum suction type gas packing bag as claimed in claim 1 is characterized in that, described gas column sheet (2) comprises a plurality of mutual disconnected gas columns (20) side by side, all is provided with an air intake (2e) on each gas column;

All be provided with hot pressing node (20a) and ring sleeve portion (20b) on described each gas column, hot pressing node and ring sleeve portion are all formed by bonding two adventitias of heat-sealing, and each ring sleeve portion is all around a hot pressing node.

6, vacuum suction type gas packing bag as claimed in claim 5 is characterized in that, each ring sleeve portion (20b) on same gas column (20) is interconnected.

7, vacuum suction type gas packing bag as claimed in claim 5 is characterized in that, for adjacent two gas columns (20), the ring sleeve portion on the ring sleeve portion on one of them gas column and another gas column is staggered and arranges.

8, vacuum suction type gas packing bag as claimed in claim 1 is characterized in that, described gas column sheet (2) only comprises a gas column (20), which is provided with a plurality of air intakes (2e).

9, as claim 3 or 5 described vacuum suction type gas packing bags, it is characterized in that, be provided with a cutting line (8) that runs through whole gas packing bag between the described gas column (20) at least.

10, a kind of packing method of vacuum suction type gas packing bag comprises the steps:

Step 1: after applying heat proof material (1c) between two inner membrances (1a, 1b), this two inner membrance is placed between two adventitias (2a, 2b), seal bonding to inner membrance and adventitia again, to form gas column sheet (2), this gas column sheet comprise filling channel (9), heat proof material (1c) locate and in two intermembranous air intake (2e), air intake makes gas enter gas column sheet inside from filling channel (9);

Step 2: first buffer wall (21) and second buffer wall (22) that bending gas column sheet (2) is interconnected with formation;

Step 3: seal the dual-side of bonding first buffer wall (21) and second buffer wall (22), make and surround accommodation space (10) between first buffer wall and second buffer wall;

Step 4: article (100) are inserted in the accommodation space (10);

Step 5: extract the gas in the accommodation space (10), make first buffer wall (21) and second buffer wall (22) girding articles (100).

11, the packing method of vacuum suction type gas packing bag as claimed in claim 10, wherein, described step 1 also comprises: after applying heat proof material between two inner membrances, form at least one gas passage (14) by sealing bonding two inner membrances between two inner membrances; Each air intake (2e) all is connected with a gas passage (14);

Gas enters the gas column sheet through filling channel (9), air intake (2e) and gas passage (14).

12, the packing method of vacuum suction type gas packing bag as claimed in claim 10, wherein, in step 1, described filling channel (9) forms by sealing bonding two adventitias (2a, 2b) or sealing bonding two inner membrances (1a, 1b), the gas column sheet comprises at least one gas column (20), and this filling channel (9) is positioned at an end of gas column.

13, the packing method of vacuum suction type gas packing bag as claimed in claim 10, wherein, step 1 also comprises: form hot pressing node (20a) on the gas column sheet by sealing bonding two adventitias, seal bonding two adventitias afterwards again and form ring sleeve portion (20b) on the gas column sheet, each ring sleeve portion is all around a hot pressing node.

14, the packing method of vacuum suction type gas packing bag as claimed in claim 10, wherein, described gas column sheet (2) comprises a plurality of gas columns (20) side by side, and is provided with a cutting line (8) that runs through whole gas packing bag between the gas column at least; All be provided with an air intake (2e) on each gas column;

Upward be formed with hot pressing node (20a) and ring sleeve portion (20b) by heat-seal bond two adventitias at each gas column (20), each ring sleeve portion is all around a hot pressing node.

15, the packing method of vacuum suction type gas packing bag as claimed in claim 10, wherein, described gas column sheet (2) only comprises a gas column (20), is provided with a plurality of air intakes (2e) on this gas column (20).

16, the packing method of vacuum suction type gas packing bag as claimed in claim 10 wherein, in step 5, is with vacuumizing that assembly (5) is evacuated accommodation space (10) or near vacuum.

17, the packing method of vacuum suction type gas packing bag as claimed in claim 10 wherein, also comprises after step 1: gas is charged into the gas column sheet by air intake (2e).

18, the packing method of vacuum suction type gas packing bag as claimed in claim 10 wherein, also comprises after step 4: gas is charged into the gas column sheet by air intake (2e).

19, the packing method of vacuum suction type gas packing bag as claimed in claim 10 wherein, also comprises after step 5: gas is charged into the gas column sheet by air intake (2e).

20, the packing method of vacuum suction type gas packing bag as claimed in claim 10 wherein, also comprises after step 5: seal bonding first buffer wall (21) and second buffer wall (22) upper end and the opening of sealing accommodation space (10).

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