CN216270887U - Packing material - Google Patents

Abstract

The utility model provides a packing material, which comprises a base layer and a buffer layer, wherein the base layer is provided with a first lateral edge and a second lateral edge, and the buffer layer is provided with a third lateral edge and a fourth lateral edge; the buffer layer is laminated on the base layer, the first side edge of the base layer is tightly sealed with the third side edge of the buffer layer, and the second side edge of the base layer is tightly sealed with the fourth side edge of the buffer layer.

Description

Packing material

Technical Field

The present invention relates to a packing material; in particular to a packing material with no indentation on the surface and no blank pressing on the side surface.

Background

Fig. 1 shows a destructive bag 10 made of conventional packaging material, which has a double-layer structure, wherein the outer layer 12 is made of opaque plastic material, the inner layer 14 is made of material with a buffering function (such as bubble paper), and an adhesive 162 is arranged at the folding cover 16 of the bag mouth and covered with a release paper 18. By simply tearing the release paper 18 and folding the lid 16 back, the mouth of the bag 10 is closed by the adhesive 162, and once the bag is sealed, the contents cannot be removed unless the bag body is broken (i.e., the "bag-broken" origin).

The opaque outer layer 12 ensures that the contents cannot be viewed from the outside, the cushioning inner layer 14 provides substantial protection, and the tamper-evident bag 10 has the characteristic of being non-tamper-evident and non-reopenable, further ensuring that the contents are not replaced or snooped, by placing the contents inside the tamper-evident bag 10 and closing the mouth of the bag with the flap 16. With these advantages, it is quite common for the general public to destroy the bag when shipping the package.

However, the conventional packing material for manufacturing the destructive bag is usually prepared by bonding an opaque plastic material and another material having a buffering function by a hot pressing method, folding the two materials together after the two materials are combined by hot pressing, and then pressing and trimming the sides by the hot pressing method again, thereby completing the destructive bag 10 having a double-layer structure consisting of the outer layer 12 and the inner layer 14. The outer layer 12 of the bag 10 will shrink due to melting under heat and will conform closely to the inner layer 14, leaving the texture or surface pattern of the inner layer 14 on the surface. As can be seen in fig. 1, the inner layer 14 in this example is made of bubble paper having a plurality of air cells arranged in rows, so that corresponding indentations are also present on the outer layer 12, resulting in an uneven surface, which may impair the appearance of characters or patterns printed on the surface of the outer layer 12 and also may be disadvantageous for writing thereon. In addition, since the side edge of the bag 10 is also folded by a hot pressing method, the flattened strip-shaped edge 10A is formed on the side edge of the bag 10, and the available accommodating space inside the bag 10 is inevitably reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above circumstances, the present invention provides a packaging material having no surface indentation and no edge holding on the side.

The utility model provides a packing material, which comprises a base layer and a buffer layer, wherein the base layer is provided with a first side edge and a second side edge; the buffer layer is laminated on the base layer and is provided with a third side edge and a fourth side edge. The first side edge of the base layer and the third side edge of the cushioning layer are closely combined into a first close-coupled line, and the second side edge of the base layer and the fourth side edge of the cushioning layer are closely combined into a second close-coupled line.

In one embodiment, a distance between the first side edge and the second side edge of the base layer, a distance between the third side edge and the fourth side edge of the cushioning layer, and a distance between the first sealing line and the second sealing line are substantially equal.

In one embodiment, the base layer has a first surface facing the buffer layer, and the first surface has a first bonding region thereon; the buffer layer is provided with a second surface facing the base layer, and the second surface is provided with a second combination area; the first binding region is bound to the second binding region; the area of the first bonding region is smaller than that of the first surface of the base layer, and the area of the second bonding region is smaller than that of the second surface of the buffer layer.

In an embodiment, the packaging material further includes an adhesive disposed in at least one of the first bonding region of the base layer and the second bonding region of the buffer layer, and the first bonding region of the base layer and the second bonding region of the buffer layer are bonded by the adhesive.

In one embodiment, the base layer has a fold line, a first end edge and a second end edge, and the fold line, the first end edge and the second end edge are connected with the first side edge and the second side edge; the buffer layer is provided with a third end edge and a fourth end edge, and the third end edge and the fourth end edge are connected with the third side edge and the fourth side edge; the base layer and the buffer layer are folded together along the folding line of the base layer, so that the base layer forms an outer bag, the buffer layer forms an inner bag, a containing space is formed in the inner bag, and the inner bag is arranged in the outer bag.

In one embodiment, the base layer has a first surface facing the buffer layer, the first surface has a first bonding region thereon, and the first bonding region is disposed between the first edge of the base layer and the fold line; the buffer layer is provided with a second surface facing the base layer, the second surface is provided with a second combination area, and the first combination area is used for being combined with the second combination area; a first accommodating space is defined by a part of the base layer, a part of the buffer layer, the first sealing line, the second sealing line and the joint of the first combining area and the second combining area.

In one embodiment, the first surface of the base layer further has a third bonding area disposed between the second edge of the base layer and the fold line; the second surface of the buffer layer is also provided with a fourth combination area, and the third combination area is used for being combined with the fourth combination area; a second accommodating space is defined by the other part of the base layer, the other part of the buffer layer, the first close joint line, the second close joint line and the joint of the third joint area and the fourth joint area; the interlayer space is defined by a part of the base layer, a part of the buffer layer, the first close-joint line, the second close-joint line, the joint of the first combination area and the second combination area, and the joint of the third combination area and the fourth combination area.

In one embodiment, the first surface of the base layer further has a fifth bonding region, the second surface of the buffer layer has a sixth bonding region, and the fifth bonding region is used for bonding with the sixth bonding region; the interlayer space comprises a first interlayer subspace and a second interlayer subspace, and the first interlayer subspace and the second interlayer subspace are separated by taking the joint of the fifth combination area and the sixth combination area as a boundary.

In one embodiment, the first bonding region has an area smaller than that of the first surface of the base layer, and the second bonding region has an area smaller than that of the second surface of the buffer layer.

In one embodiment, the first end edge and the second end edge of the base layer are not aligned to form a flap for sealing the outer bag opening of the outer bag.

In one embodiment, the base layer further comprises another adhesive and a release paper, the another adhesive is disposed on the folding cover, and the release paper is disposed on the another adhesive; after the release paper is taken down, the other adhesive is used for sealing the opening of the outer bag.

In one embodiment, the base layer is made of an opaque material

The packing material provided by the utility model has a flat surface, so that characters or patterns printed on the packing material can effectively and well present effects; if writing on the paper is needed, the paper can be prevented from being interfered by indentation. In addition, since the side edges of the packing material are not provided with strip-shaped edges, the damage bag made of the packing material can have the maximum available internal accommodating space.

Drawings

Fig. 1 is a perspective view of a breaking bag made of a conventional packing material.

Figure 2 is a perspective view of a breakaway bag made using the wrapper of the present invention.

Fig. 3 is a cross-sectional view of the break bag shown in fig. 2, as seen along line 3-3.

Fig. 4 is a cross-sectional view of the break bag shown in fig. 2, as seen along line 4-4.

FIG. 5 is a cross-sectional view similar to FIG. 3 showing another method of implementation of the breaching bag.

FIG. 6 is a flow chart illustrating a method of making the wrapper of the present invention.

FIG. 7 is a schematic view of the base layer and the buffer layer of the packaging material of the present invention being stacked according to the above method.

FIG. 8 is a schematic view of the base layer and the buffer layer of the packaging material of the present invention being folded according to the method described above.

FIG. 9 is a schematic view of the package material of the present invention after folding and hot cutting the base layer and the cushion layer to form a final destroyed bag.

Fig. 10 is a cross-sectional view of the base and cushioning layers of fig. 9, taken along line 10-10, shown as a hot cut.

Detailed Description

In order to more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings.

The terms "substantially equal" or "substantially equal" in the following embodiments refer to the fact that the dimensions of one element/structure are equal to the dimensions of another element/structure. However, it is within the scope of the present invention that the dimensions of the component/structure and the dimensions of the other component/structure are not completely equal due to manufacturing tolerances or other factors, i.e., manufacturing/assembly tolerances may be allowed between the dimensions of the component/structure and the dimensions of the other component/structure, e.g., the manufacturing/assembly tolerances may be within 5 mm.

Referring to fig. 2 to 4, fig. 2 is a view illustrating a breaking bag 20 manufactured by using the packing material 100 according to a preferred embodiment of the present invention, wherein fig. 3 is a sectional view taken along line 3-3 of fig. 2, and fig. 4 is a sectional view taken along line 4-4 of fig. 2. The breaking bag 20 has a double-layered structure, and includes an outer bag 22 and an inner bag 24, wherein the inner bag 24 is nested inside the outer bag 22, and the inner bag 24 has a receiving space S1 for receiving articles. The mouth of bag 20 can be subdivided into an outer bag opening 222 formed by outer bag 22 and an inner bag opening 242 formed by inner bag 24, wherein outer bag 22 is provided with a flap 224 at outer bag opening 222, protruding from inner bag 24, and first adhesive 226 is applied to flap 224 and covered with release paper 228. By removing the release paper 228 and folding the cover 224, the cover 224 and the other side surface of the outer bag 22 can be tightly adhered by the first adhesive 226, so that the outer bag opening 222 and the inner bag opening 242 are simultaneously sealed, i.e. the opening of the bag 20 is sealed and broken.

The outer bag 22 of the destructive bag 20 is formed by the base layer 110 of the packing material 100 according to the preferred embodiment of the present invention, and the inner bag 24 is formed by the buffer layer 120 of the packing material 100, wherein the base layer 110 is made of opaque material, and the buffer layer 120 is made of buffer material. The base layer 110 has a first side edge 112 and a second side edge 114, and the buffer layer 120 has a third side edge 122 and a fourth side edge 124, wherein the first side edge 112 and the third side edge 122 are sealed to form a first sealing line L1, and the second side edge 114 and the fourth side edge 124 are sealed to form a second sealing line L2. The first side edge 112 and the second side edge 114 of the base layer 110 are a first distance D1, the third side edge 122 and the fourth side edge 124 of the cushioning layer 120 are a second distance D2, and the first knit line L1 and the second knit line L2 are a third distance D3. The first distance D1, the second distance D2, and the third distance D3 are substantially equal. In other words, neither the packaging material 100 (nor the bag 20 made of the packaging material 100) has the above-mentioned blank holder 10A of the conventional bag 10, so that the receiving space S1 inside the inner bag 24 can provide the maximum usable space.

To illustrate the relationship between the package 100 and the bag 20 formed therefrom, the package 100 is defined herein as having a first end edge 116, a second end edge 118, and a fold line 119 in the base layer 110, and a cushion layer 120 having a third end edge 126 and a fourth end edge 128, wherein the first end edge 116 and the second end edge 118 are connected to the first side edge 112 and the second side edge 114 of the base layer 110; similarly, the third edge 126 and the fourth edge 128 are connected to the third side edge 122 and the fourth side edge 124 of the cushioning layer 120. The base layer 110 and the cushioning layer 120 are folded together along the fold line 119, whereby the base layer 110 constitutes the outer bag 22; the cushion layer 120 forms the inner bag 24, and the third end edge 126 and the fourth end edge 128 form the inner bag opening 242. In addition, the first end edge 116 and the second end edge 118 of the base layer 110 are not aligned, thereby forming a flap 224, the flap 224 can be folded relative to the base layer 110 along the reverse folding line of the base layer 110, and the reverse folding line and the second end edge 118 of the base layer 110 form the outer bag opening 222.

In addition to the side sealing of the first sealing line L1 and the second sealing line L2, the base layer 110 and the cushioning layer 120 of the preferred embodiment of the present invention are also bonded together by a second adhesive 130, which further helps to bond the base layer 110 and the cushioning layer 120. In detail, a surface of the base layer 110 facing the buffer layer 120 is defined as a first surface 115, a surface of the buffer layer 120 facing the base layer 110 is defined as a second surface 125, wherein the first surface 115 has a first bonding region 115A, the second surface 125 has a second bonding region 125A, and the second adhesive 130 is disposed on at least one of the first bonding region 115A and the second bonding region 125A, such that the first bonding region 115A and the second bonding region 125A are bonded by the second adhesive 130, thereby achieving the purpose of bonding the base layer 110 and the buffer layer 120. The first bonding region 115A is located between the first end 116 of the substrate 110 and the folding line 119, and the second bonding region 125A is located on the buffer layer 120 corresponding to the first bonding region 115A. With such a design, a first accommodating space S3 is provided between the base layer 110 and the buffer layer 120, wherein the first accommodating space S3 is defined by a portion of the base layer 110, a portion of the buffer layer 120, the first bonding line L1, the second bonding line L2, and a junction of the first bonding region 115A and the second bonding region 125A. The first receiving space S3 can be used to facilitate the insertion of thin objects such as paper sheets, and can be easily removed as needed.

In addition, the area of the first bonding region 115A is smaller than the area of the first surface 115 of the base layer 110, and the area of the second bonding region 125A is also smaller than the area of the second surface 125 of the buffer layer 120. Thus, when the bag material 100 of the preferred embodiment of the present invention is formed into a bag 20, the inner and outer bags 24, 22 are not completely bonded.

In addition, as shown in fig. 3, after the bag member 100 of the preferred embodiment of the present invention is manufactured into the breaking bag 20, the third bonding area 115B may be disposed on the first surface 115 and the fourth bonding area 125B may be disposed on the second surface 125 on the side of the breaking bag 20 without the flap 224. Specifically, third bonding area 115B is disposed between second end edge 118 of base layer 110 and fold line 119, fourth bonding area 125B is disposed corresponding to third bonding area 115B, and second adhesive 130 is also applied to at least one of third bonding area 115B and fourth bonding area 125B, such that third bonding area 115B and fourth bonding area 125B are also bonded by second adhesive 130. With such a design, a second accommodating space S4 is further provided between the outer bag 22 and the inner bag 24 of the breaking bag 20, wherein the second accommodating space S4 is defined by another portion of the base layer 110, another portion of the buffer layer 120, the first sealing line L1, the second sealing line L2, and the junction of the third bonding region 115B and the fourth bonding region 125B. Moreover, a further portion of base layer 110, a further portion of buffer layer 120, first knit line L1, second knit line L2, the junction of first bonding region 115A and second bonding region 125A, and the junction of third bonding region 115B and fourth bonding region 125B collectively define interlayer space S2.

The interlayer space S2 may be used to contain identification information (not shown), such as business cards, leaflets, or QR codes, among others. It will be appreciated that in such a usage scenario, the substrate 110 is not necessarily made of opaque material, so as not to obstruct the human eye or the scanner from reading the identification information. If the base layer 110 is made of opaque material as described in this embodiment, the identification information can be, but is not limited to, an RFID tag, so that the identification information can be read by a sensor even if the identification information is shielded by the base layer 100. Since the interlayer space S2 is sealed by the first sealing line L1, the second sealing line L2, the junction between the first bonding region 115A and the second bonding region 125A, and the junction between the third bonding region 115B and the fourth bonding region 125B, the identification information disposed inside the interlayer space S2 is not likely to be accidentally dropped.

Referring to fig. 5, another preferred embodiment of the present invention has substantially the same design as the previous embodiment, except that the first surface 115 of the base layer 110 is further provided with a fifth bonding region 115C, and the second surface 125 of the buffer layer 120 is correspondingly provided with a sixth bonding region 125C, wherein the second adhesive 130 is also applied on at least one of the fifth bonding region 115C and the sixth bonding region 125C, so that the fifth bonding region 115C and the sixth bonding region 125C are also bonded by the second adhesive 130. In this embodiment, the fifth bonding area 115C is disposed at the corresponding folding line 119, but the utility model is not limited thereto, and the fifth bonding area 115C may also be disposed at the first surface 115 other than the folding line 119, depending on the actual situation. The interlayer space S2 is divided into a first interlayer sub-space S2A and a second interlayer sub-space S2B by the junction of the fifth bonding region 115C and the sixth bonding region 125C. Thus, the first interlayer sub-space S2A and the second interlayer sub-space S2B can be used to accommodate different identification information, enabling more flexible application of the destruction bag 20.

The present invention also provides a method for manufacturing the packaging material 100 according to a preferred embodiment, which includes the steps shown in fig. 6 and fig. 7-10. First, a large-area substrate 110 is provided in step S01, wherein the substrate 110 is drawn from the substrate cartridge 80 and passed between the monolith roller sets 82 to be kept flat. Next, in step S02, a large-area cushioning layer 120 is laminated on the substrate 110, wherein the cushioning layer is pulled from the cushioning material barrel 90 and is also kept flat by the spaces between the roller sets 92. The breaker ply 120 passing through the monolith roller set 92 is redirected at the turning rollers 94 and then passes between the laminating roller sets 84 simultaneously with the substrate layer 110, thereby completing lamination of the substrate layer 110 and the breaker ply 120.

It is worth mentioning that the base layer 110 and the breaker ply 120 are adhered to each other by applying a second adhesive 130, wherein the second adhesive 130 is provided by the dispensing head 70 and is applied to the base layer 110 before it enters the laminating roller set 84. As described above, in the manufacturing method of the present embodiment, the first surface 115 of the base layer 110 faces the buffer layer 120, the second surface 125 of the buffer layer 120 faces the base layer 110, and the second adhesive 130 is applied on at least one of the first bonding area 115A of the first surface 115 and the second bonding area 125A of the second surface 125, in the present embodiment, the first bonding area 115A is the position of the base layer 110 coated with the second adhesive 130 by the dispensing head 70. The area of the first bonding region 115A is smaller than that of the first surface 115 of the base layer 110, and the area of the second bonding region 125A is smaller than that of the second surface 125 of the buffer layer 120, so that the base layer 110 and the buffer layer 120 are not completely adhered, and the aforementioned interlayer space S2 may be formed therebetween.

Preferably, the base layer 110 is made of an opaque material, the buffer layer 120 is made of a buffering material, and the size of the base layer 110 is larger than that of the buffer layer 120, so that a portion of the base layer 110 is not covered by the buffer layer 120 (as shown in fig. 8). In the subsequent process, a first adhesive 226 may be disposed on the portion of the base layer 110 not covered by the cushioning layer 120, and a release paper 228 may be disposed on the first adhesive 226.

Next, in step S03, the stacked base layer 110 and the buffer layer 120 are cut by a hot cutting tool, wherein the base layer 110 and the buffer layer 120 are heated and melted to be adhered to each other at the hot cut portion. It should be noted that step S03 further includes folding the laminated base layer 110 and cushion layer 120 along fold line 119 in order to form the bag 100 into the breaking bag 20. As shown in fig. 8, the overlapped substrate 110 and the cushion layer 120 are naturally folded after passing through the triangular folding member 60, and another one-piece roller set 62 can be further used to replace the folded substrate 110 and the folded cushion layer 120 to keep flat, and the pressing roller 64 is matched to make the folded substrate 110 and the cushion layer 120 fit more closely.

As shown in fig. 9 and 10, the hot cutting tool is a hot cutting knife 50 in the present embodiment, and the method cuts the overlapped base layer 110 and cushion layer 120 using the hot cutting knife 50, and the first sealing line L1 and the second sealing line L2 of the breaking bag 20 can be formed by performing the above-mentioned operation twice. Thus, the distance between the first sealing line L1 and the second sealing line L2 is substantially equal to the first width W1 of the cut base layer 110 and the second width W2 of the buffer layer 120. In other words, the side edges of the base layer 110 and the cushioning layer 120 are sealed by the first sealing line L1 and the second sealing line L2, and do not have the hem 10A of the conventional wrapper 10.

In summary, the first sealing line L1 and the second sealing line L2 of the bag 20 formed by the hot knife 50 are configured such that the distance between the first sealing line L1 and the second sealing line L2 is substantially equal to the first width W1 of the base layer 110 and the second width W2 of the buffer layer 120. As such, the first sealing line L1 and the second sealing line L2 of the bag 20 of the present invention are not the pressing edges formed by heat pressing (e.g., the pressing edge 10A of the common bag material 10 shown in fig. 1), but are the sealing cutting lines formed by the heat cutter 50, so as to further save the width of the structure for sealing the side edges of the base layer 110 and the buffer layer 120 under the same bag size, thereby increasing the space inside the bag 20.

It should be noted that the position of the first bonding area 115A applied with the second adhesive 130 can be properly adjusted in advance, so that the first bonding area 115A can be located between the first end edge 116 of the base layer 110 and the folding line 119 after the base layer 110 and the buffer layer 120 are folded, and the second bonding area 125A corresponds to the first bonding area 115A, thereby forming the first receiving space S3 between the inner bag 24 and the outer bag 22 of the bag 20.

Furthermore, as mentioned above, the second adhesive 130 may be further applied on at least one of the third bonding region 115B on the first surface 115 of the base layer 110 and the fourth bonding region 125B on the second surface 125 of the buffer layer 120, so that the third bonding region 115B and the fourth bonding region 125B are bonded to each other. Third bonding area 115B is disposed between second end edge 118 of substrate 110 and fold line 119, and fourth bonding area 125B corresponds to third bonding area 115B, such that a second receiving space S4 is formed between inner bag 24 and outer bag 22 of bag 20.

In addition, according to another preferred embodiment of the present invention, the second adhesive 130 is also applied to at least one of the fifth bonding area 115C of the first surface 115 and the sixth bonding area 125C of the second surface 125, so that the fifth bonding area 115C and the sixth bonding area 125C are bonded to each other by the second adhesive 130. The fifth bonding area 115C is disposed on the folding line 119 of the substrate 110, and the sixth bonding area 125C corresponds to the fifth bonding area 115C, so that the interlayer space S2 can be divided into a first interlayer sub-space S2A and a second interlayer sub-space S2B.

Thus, upon operation of the thermal cutting apparatus described in step S03, a breach bag 20 can be formed, wherein the base layer 110 forms an outer bag 22, and the first and second end edges 116, 118 of the base layer 110 form an outer bag opening 222; the cushioning layer 120 forms the inner bag 24, and the third end edge 126 and the fourth end edge 128 of the cushioning layer 120 form an inner bag opening 242. In this way, the storage space S1 is formed inside the inner bag 24, and the flap 224 is formed at the portion of the base layer 110 not covered by the cushioning layer 120.

The packing material 100 manufactured by the method has a flat surface without indentation because the hot pressing method is not performed, and is suitable for printing or writing; in addition, no edge is left on the side of the packaging material 100, and the receiving space S1 of the bag 20 made of the packaging material 100 can provide the maximum available space.

While the utility model has been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the utility model is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

[ notation ] to show

10 breaking bag

12 outer layer

14 inner layer

16-fold cover

162 adhesive

18-release paper

10A strip edge

100 packing material

110 base layer

112 first side edge 114 second side edge 115 first surface

115A first binding domain 115B third binding domain 115C fifth binding domain

116 first end edge 118 and second end edge 119 fold line

120 buffer layer

122 third side edge 124 fourth side edge 125 second surface

125A second binding region 125B fourth binding region 125C sixth binding region

126 third end edge 128 fourth end edge

130 second adhesive

20 destroying bag

22 outer bag

222 outer bag opening 224 flap 226 first adhesive

228 type release paper

24 inner bag

242 opening of inner bag

50 hot knife

60 folding member 62 monolith roller set 64 urging roller

70 dispensing head

80 base layer cartridge 82 monolith roller set 84 superposition roller set

90 buffer layer feed cylinder 92 whole body roller group 94 steering roller

S1 storage space

S2 interlayer space

S2A first Sandwich subspace

S2B second Sandwich subspace

S3 first accommodating space

S4 second accommodating space

L1 first mating line

L2 second seal line

D1 first distance

D2 second distance

D3 third distance

W1 first width

W2 second width

H hot cutting line

S01, S02 and S03.

Claims (10)

1. A packing material, comprising:

a base layer having a first side edge and a second side edge; and

the buffer layer is superposed on the base layer and is provided with a third side edge and a fourth side edge;

wherein the first side edge of the base layer and the third side edge of the cushioning layer are closely combined to form a first close-coupled line, and the second side edge of the base layer and the fourth side edge of the cushioning layer are closely combined to form a second close-coupled line.

2. The package of claim 1, wherein the distance between the first side edge and the second side edge of the base layer, the distance between the third side edge and the fourth side edge of the cushioning layer, and the distance between the first sealing line and the second sealing line are substantially equal.

3. The package of claim 1, wherein the base layer has a first surface facing the buffer layer, the first surface having a first bonding region thereon; the buffer layer is provided with a second surface facing the base layer, and the second surface is provided with a second combination area; the first binding region is bound to the second binding region; the area of the first bonding region is smaller than that of the first surface of the base layer, and the area of the second bonding region is smaller than that of the second surface of the buffer layer.

4. The packing material of claim 3, further comprising:

the adhesive is arranged in at least one of the first bonding area of the base layer and the second bonding area of the buffer layer, and the first bonding area of the base layer and the second bonding area of the buffer layer are bonded through the adhesive.

5. A wrapper as defined in claim 1, wherein:

the base layer is provided with a folding line, a first end edge and a second end edge, and the folding line, the first end edge and the second end edge are connected with the first side edge and the second side edge;

the buffer layer is provided with a third end edge and a fourth end edge, and the third end edge and the fourth end edge are connected with the third side edge and the fourth side edge;

the base layer and the buffer layer are folded together along the folding line of the base layer, so that the base layer forms an outer bag, the buffer layer forms an inner bag, a containing space is formed in the inner bag, and the inner bag is arranged in the outer bag.

6. A wrapper as defined in claim 5, wherein:

the base layer is provided with a first surface facing the buffer layer, the first surface is provided with a first combination area, and the first combination area is arranged between the first end edge of the base layer and the fold line;

the buffer layer is provided with a second surface facing the base layer, the second surface is provided with a second combination area, and the first combination area is used for being combined with the second combination area;

a first accommodating space is defined by a part of the base layer, a part of the buffer layer, the first sealing line, the second sealing line and the joint of the first combining area and the second combining area.

7. A wrapper as defined in claim 6, wherein:

the first surface of the base layer is also provided with a third combination area which is arranged between the second end edge of the base layer and the fold line;

the second surface of the buffer layer is also provided with a fourth combination area, and the third combination area is used for being combined with the fourth combination area;

a second accommodating space is defined by the other part of the base layer, the other part of the buffer layer, the first close joint line, the second close joint line and the joint of the third joint area and the fourth joint area;

the interlayer space is defined by a part of the base layer, a part of the buffer layer, the first close-joint line, the second close-joint line, the joint of the first combination area and the second combination area, and the joint of the third combination area and the fourth combination area.

8. The package of claim 7, wherein the first surface of the base layer further comprises a fifth bonding region, the second surface of the buffer layer comprises a sixth bonding region, and the fifth bonding region is configured to bond with the sixth bonding region; the interlayer space comprises a first interlayer subspace and a second interlayer subspace, and the first interlayer subspace and the second interlayer subspace are separated by taking the joint of the fifth combination area and the sixth combination area as a boundary.

9. The package of claim 5, wherein the first bonding region has an area smaller than the first surface of the base layer and the second bonding region has an area smaller than the second surface of the buffer layer.

10. The package of claim 5, wherein the first end edge and the second end edge of the base layer are not aligned to form a flap for sealing the outer bag opening of the outer bag, the base layer further comprising another adhesive and a release paper, the another adhesive being disposed on the flap, the release paper being disposed on the another adhesive; after the release paper is taken down, the other adhesive is used for sealing the opening of the outer bag.

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