CN115072176A - Composite structure with low-density foaming material and reinforcing material and anti-collision filling object thereof - Google Patents
Composite structure with low-density foaming material and reinforcing material and anti-collision filling object thereof Download PDFInfo
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- CN115072176A CN115072176A CN202110281307.3A CN202110281307A CN115072176A CN 115072176 A CN115072176 A CN 115072176A CN 202110281307 A CN202110281307 A CN 202110281307A CN 115072176 A CN115072176 A CN 115072176A
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- composite structure
- elastic composite
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- reinforcing material
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 239000012779 reinforcing material Substances 0.000 title claims abstract description 37
- 238000005187 foaming Methods 0.000 title claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 20
- 239000011122 softwood Substances 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 15
- 239000004620 low density foam Substances 0.000 description 9
- 238000003825 pressing Methods 0.000 description 8
- 238000004806 packaging method and process Methods 0.000 description 7
- 239000006260 foam Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004619 high density foam Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012464 large buffer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/022—Containers made of shock-absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buffer Packaging (AREA)
Abstract
The application discloses an elastic composite structure with low-density foaming material and reinforcing material and an anti-collision packing object thereof, wherein the anti-collision packing object comprises at least one base body and at least one elastic composite structure, the elastic composite structure can be connected to the base body and comprises a first body and at least one reinforcing material, and the density of the first body is at least less than 30kg/m 3 The reinforcing material can be made of paper materials, plasticizing materials or softwood materials, and the reinforcing material can be placed in the first body, so that the structural strength of the low-density foaming material can be enhanced by means of the design of the reinforcing material, and the elastic composite structure has high vertical compressive strength so as to provide good buffering effect and supporting strength.
Description
Technical Field
The present invention relates to a resilient composite structure, and more particularly to a resilient composite structure having reinforcement material disposed within a low density foam material to collectively form the resilient composite structure, and which can be used as part of a crash fill object.
Background
For example, the packaging material usually contains anti-collision packing objects, which have elastic structures, and when the packaging box of the product is impacted, vibrated, compressed (e.g., the load weight during stacking), and pressed (e.g., the air pressure during air transportation), the anti-collision packing objects can provide appropriate buffering and protection, thereby reducing the probability of damage to the product and enabling the product to be delivered to the hands of the consumer without damage.
Generally, the conventional anti-collision packing objects include foam and paper, and usually paper is pasted on the surface of the foam, or a paper lining partition, a paper accessory box, etc. are used as a buffer structure. The aforesaid structure is applicable to mostly not restricting among the packing carton (case) of buffering space, means, can plan out great buffering space in the packing carton to pack a large amount of expanded material, effectively protect the integrality of product, however, aforementioned condition will cause the volume of packing carton too big, and then has taken up too much storage space, transportation space or shop's the space of selling, and can consume too much expanded material, leads to waste on the resource and packing cost to rise. In addition, if a packing box (case) of a fixed size is required in order to take into consideration a standard transportation volume, since a buffering space therein is limited, a low-density foamed material (i.e., having a density of less than 30 kilograms per cubic meter (kg/m) is used 3 ) In this case, the foam wall of the low-density foam material is soft (insufficient support strength), so that the protection capability is not improved effectively, and the probability of damage to the product is increased. Therefore, manufacturers usually increase the density of the foamed material to provide better cushioning effect and support strength. In general, the aforementioned foams used, which have a density of more than 30kg per cubic meter, are referred to as high-density foams.
However, the high-density foaming material has high cost and is difficult to obtain, and for example, in taiwan, most of the existing high-density foaming materials rely on import from foreign countries or other regions, which will result in high packaging cost of the product and undoubtedly increase the expense of enterprises or consumers. Therefore, how to effectively solve the aforementioned problems so as to reduce the packaging cost and the packaging volume and improve the product protection capability at the same time becomes an important point of benefit of the present application.
Disclosure of Invention
In view of the fact that the existing crash-proof packing object still has room for improvement, after repeated research and tests, the elastic composite structure with low-density foam and reinforcing material and the crash-proof packing object thereof are developed, and the application is expected to provide a packaging structure design with low cost, small volume and sufficient protection.
In order to solve the above technical problem, one of the technical solutions of the present application is to provide an elastic composite structure with low-density foam and paper, including a first body and at least one reinforcing material, wherein the first body at least has a density of less than 30 kilograms per cubic meter (kg/m) 3 ) The low-density foam material is provided with at least one opening; each reinforcing material can be made of paper materials, plasticized materials or soft wood materials and the like, can form a column shape and can extend into the open hole to be placed in the first body, and therefore by means of the design of the reinforcing materials, the structure of the low-density foaming material can be reinforced, the elastic composite structure has high vertical compression strength, and good buffering effect and supporting strength can be provided.
Optionally, the aperture is proximate to a corner edge of the first body.
Optionally, the reinforcing material is a paper material and is corrugated paper.
Optionally, the corrugated paper has a burst strength of 4 to 12 kilograms force per square centimeter (kgf/cm) 2 )。
Optionally, the corrugated paper has a thickness of 2 to 4 millimeters (mm).
Optionally, the shape of the reinforcing material is a triangular prism.
Another technical scheme that this application adopted is, provides an anticollision of utensil low density expanded material and paper material and packs the article, anticollision is packed the article and can be put into a box, and includes an at least base member and an at least elasticity composite construction, wherein, elasticity composite construction can comprise a first body and an at least reinforcing material, just the first body is made by the low density expanded material that density is less than 30 kilograms per cubic meter at least, is equipped with in it by materials such as paper material, plasticized material or softwood make the reinforcing material, so, anticollision is packed the article and does not need too big buffer space, also can provide the good protective force of product.
Optionally, the substrate is paper.
Optionally, the matrix is a foamed material.
Optionally, the elastic composite structure is located between the base and the box.
For further explanation of the purpose, technical features and effects of the present application, the following detailed description is provided with reference to the accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the present application.
Drawings
FIG. 1 is an exploded view of a crash fill article and product according to the present application;
FIG. 2 is a schematic view of the assembly of the crash fill object and product of the present application;
FIG. 3 is a schematic view of a crash fill article and product of the present application being placed into a container;
FIG. 4A is an exploded view of the elastic composite structure of the present application for performing a vertical voltage withstand test;
FIG. 4B is a schematic view of a low density foam for vertical voltage endurance test; and
figure 5 is a schematic view of the elastic composite structure of the present application in two compression plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the following detailed description will be made with reference to the accompanying drawings and embodiments of the "elastic composite structure with low-density foamed material and reinforcement material and crash-proof packing object thereof" disclosed in the present application. The advantages and effects of the present application will be apparent to those skilled in the art from the disclosure of the present specification. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the present application. Further, it is stated in advance that the drawings of the present application are for illustrative purposes only and are not drawn to scale, and although examples of parameters including particular values may be provided herein, it is to be understood that the parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error margins or design constraints. The following embodiments will further describe the related technical content of the present application in detail, but the disclosure is not intended to limit the scope of the present application.
It should be noted that the drawings in the present application are merely schematic illustrations and are not drawn to scale. The following embodiments will further explain the related art of the present application in detail, but the disclosure is not intended to limit the scope of the present application. It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms, which are used primarily to distinguish one element from another. Furthermore, directional terms, such as "left" and "right", etc., used in the following embodiments refer to directions of the drawings, and therefore, the directional terms are used for illustration and are not used to limit the scope of the present disclosure.
Referring to fig. 1, for convenience of subsequent description, a lower right side of fig. 1 is taken as a front of the assembly, an upper left side of fig. 1 is taken as a rear of the assembly, an upper right side of fig. 1 is taken as a right of the assembly, and a lower left side of fig. 1 is taken as a left of the assembly. In one embodiment, the elastic composite structure 1 includes a first body 11 and at least one reinforcing material 12, wherein the first body 11 is made of a material selected from the group consisting of aluminum, copper, stainless steel, stainlessA density of less than 30 kilograms per cubic meter (kg/m) 3 ) The first body 11 is a long column, and two openings 110 are opened on the front side of the first body 11, and the openings 110 can be triangular, and can extend toward the rear side of the first body 11 and penetrate through the first body 11.
As shown in fig. 1 and 2, the reinforcing material 12 can be made of paper material, plastic material or soft wood material, such as: the paper material can be corrugated paper or other paper materials; the plasticized material can be Polystyrene (PS), polypropylene (PP), polyethylene terephthalate (PET), etc., and in the embodiment of the present application, the reinforcing material 12 is exemplified by a paper material. Further, when the reinforcing material 12 is corrugated paper, the breaking strength thereof can be 4 to 12 kgf per square centimeter (kgf/cm) 2 ) The thickness can be, but is not limited to, 2 to 4 millimeters (mm). In addition, the reinforcing material 12 can be rolled into a column shape or a strip shape, and can extend into the corresponding opening 110 to be inserted into the first body 11. In this embodiment, the reinforcing member 12 is a triangular prism to match the shape of the opening 110, but not limited thereto. In addition, before the reinforcing material 12 is inserted into the opening 110, a heating process is performed on the opening 110 to solidify the wall of the opening 110 and facilitate the assembly of the reinforcing material 12 into the first body 11. Thus, by adding the reinforcing material 12 (paper material) to the first body 11 (low-density foam material), the elastic composite structure 1 formed can reinforce the structure of the low-density foam material, so that the elastic composite structure 1 has high vertical compressive strength to provide good buffering effect and supporting strength, and the cost of the consumption is lower than the amount of money consumed by the existing high-density foam material.
In addition, in practical applications, the corner of the first body 11 is more susceptible to impact, and therefore, in this embodiment, please refer to fig. 1 again, the position of the opening 110 can be close to the corner of the first body 11, for example, the upper opening 110 in fig. 1 is located at the front side of the first body 11 close to the corner of the upper left corner; the lower opening 110 in fig. 1 is located at a corner edge of the front side of the first body 11 near the lower left corner; thus, the strength of the cell wall of the low foaming material can be enhanced through the installation position of the reinforcing material 12, and the situation that the corner edge of the first body 11 collapses due to the influence of external force is avoided. However, in other embodiments of the present application, the shape of the first body 11, and the number, shape, position or penetration of the openings 110 can be adjusted according to actual requirements.
Furthermore, the elastic composite structure 1 can be used as a component of an anti-collision packing object 2, and as shown in fig. 1 and fig. 2, the anti-collision packing object 2 can include at least a base 21 and the elastic composite structure 1, wherein the base 21 can be made of paper or foam material, which is mainly used to fix and protect a product 31 (e.g., electronic equipment), in this embodiment, a side of the base 21 opposite to the product 31 is recessed with a receiving groove 210, so that a partial area of the product 31 can be inserted and fixed into the receiving groove 210 (as shown in fig. 2). In addition, the elastic composite structure 1 can be located on the other side of the base 21 opposite to the product 31 and adjacent to the left or right side of the base 21 (i.e. adjacent to the edge of the base 21), and when the base 21 is made of a foam material, the base 21 and the first body 11 can be separate components, or the base 21 and the first body 11 can be integrally formed into a single component.
As shown in fig. 1 and 3, the crash fill object 2 and the product 31 can be placed into a box 33, and the elastic composite structure 1 is located between the base 21 and the inner side of the box 33, that is, the elastic composite structure 1 is disposed on the other side of the base 21 relative to the inner side of the box 33. However, in other embodiments of the present application, the elastic composite structure 1 can be located at any position of the base 21 according to actual requirements, so as to meet the requirements of protecting the product 31. Thus, the reinforcing material 12 can effectively improve the structural strength of the first body 11, so that the anti-collision packing object 2 formed by the elastic composite structure 1 and the base 21 does not need too large buffer space, and thus the existing high-density foam material can be replaced, and the volume of the whole packaging material is reduced under the condition of providing good protection force for the product 31. In addition, since the low-density foam material and the paper material are easily obtained and have low cost, the convenience of the production of the anti-collision packing object 2 is improved and accelerated.
The elastic composite structure 1 is subjected to a vertical voltage withstand test to show that the elastic composite structure has better voltage withstand strength, wherein the voltage withstand test adopts four different types of test structures:
[ first test Structure ]
Referring to fig. 4A, the density of the first body 11 is 20 kg/cubic meter, the first body is a rectangular block, the length/width/height thereof is 330 mm/300 mm/50 mm, the first body 11 is provided with a plurality of openings 110 for mounting a plurality of reinforcing materials 12 therein, the reinforcing materials 12 are corrugated paper, the thickness thereof is 3 mm, the rupture strength thereof is less than 10 kgf/cm, the reinforcing materials 12 are triangular tubes, the maximum side M1 of the cross section thereof is 27 mm, the length of the center line M2 of the cross section thereof is 21 mm, and the height M3 thereof is 45 mm. Referring to fig. 5, the first body 11 with the reinforcing material 12 therein is placed between two pressing plates P1, P2 of a press, and the two pressing plates P1, P2 can move relative to each other and press the first body 11, so that the first body 11 forms different crushes, and the test results are as follows:
watch 1
[ second test Structure ]
As shown in fig. 4A, the density of the first body 11 is 30 kg/cubic meter, the first body is a rectangular block, the length/width/height thereof is 330 mm/300 mm/50 mm, the first body 11 is provided with a plurality of openings 110 for a plurality of reinforcing materials 12 to be installed therein, the reinforcing materials 12 are corrugated paper, the thickness thereof is 3 mm, the rupture strength thereof is less than 10 kgf/cm, the reinforcing materials 12 are triangular tubes, the maximum side M1 of the cross section thereof is 27 mm, the length of the center line M2 of the cross section thereof is 21 mm, and the height M3 thereof is 45 mm. As shown in fig. 5, the first body 11 with the reinforcing material 12 therein is placed between the two pressing plates P1, P2, and the two pressing plates P1, P2 can press the first body 11 to form different crushes of the first body 11, the test results are as follows:
watch two
[ third test Structure ]
As shown in fig. 4B, only the first body 11 with a density of 20 kg/cubic meter is used, and the first body 11 is a rectangular block with a length/width/height of 330 mm/300 mm/50 mm, and the first body 11 is not provided with the opening 110. As shown in fig. 5, the first body 11 is placed between the two pressing plates P1, P2, and the two pressing plates P1, P2 can press the first body 11 to form different collapse amounts of the first body 11, and the test results are described in the following table three:
watch III
[ fourth test Structure ]
As shown in fig. 4B, only the first body 11 with a density of 30kg per cubic meter is used, and the first body 11 is a rectangular block with a length/width/height of 330 mm/300 mm/50 mm, and the first body 11 is not provided with the opening 110. As shown in fig. 5, the first body 11 is placed between the two pressing plates P1, P2, and the two pressing plates P1, P2 can press the first body 11 to form different collapsing amounts of the first body 11, and the test results are as follows:
watch four
As can be clearly understood from the foregoing test results, the elastic composite structure 1 of the present application has better vertical compressive strength and does not require too much buffer space compared to the low-density foaming material without the additional reinforcing material 12, and for the packaging box requiring the standard transportation volume, it can provide sufficient protection for the product 31 in the limited space, and the overall packaging cost is lower than that of the high-density foaming material, so it is very popular among the manufacturers and consumers.
The above description is only a preferred and practical embodiment of the present application, and does not limit the scope of the claims of the present application, so that all the modifications that can be made by those skilled in the art without inventive changes in the technical content disclosed in the present application are included in the scope of the claims of the present application.
Claims (10)
1. An elastic composite structure having a low density foamed material and a reinforcement, the elastic composite structure comprising:
the first body is at least made of a low-density foaming material with the density of less than 30 kilograms per cubic meter, and at least one opening is formed in the first body; and
at least one reinforcing material made of paper material, plasticized material or soft wood material, wherein the reinforcing material can form a column shape or a strip shape and can extend into the open hole so as to be arranged in the first body.
2. The elastic composite structure of claim 1, wherein said opening is proximate to a corner edge of said first body.
3. A resilient composite structure according to claim 1, wherein said reinforcement is paper and corrugated paper.
4. An elastic composite structure according to claim 3, wherein the corrugated paper has a burst strength of 4 to 12 kgf per square centimeter.
5. An elastic composite structure according to claim 4, wherein the corrugated paper has a thickness of 2 to 4 mm.
6. An elastic composite structure according to any one of claims 1 to 5, wherein said reinforcement is in the shape of a triangular prism.
7. An anti-collision packing object with low-density foaming material and reinforcing material, which can be placed in a box body, comprises at least one base body, and the elastic composite structure as claimed in any one of claims 1 to 6 is arranged on the base body.
8. An impact-resistant packing element according to claim 7, wherein said substrate is paper.
9. An impact-resistant filler item according to claim 7, wherein said substrate is a foamed material.
10. An impact-resistant packing element according to any one of claims 1 to 5 wherein said resilient composite structure is located between said base and said box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281307.3A CN115072176A (en) | 2021-03-16 | 2021-03-16 | Composite structure with low-density foaming material and reinforcing material and anti-collision filling object thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281307.3A CN115072176A (en) | 2021-03-16 | 2021-03-16 | Composite structure with low-density foaming material and reinforcing material and anti-collision filling object thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115072176A true CN115072176A (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110281307.3A Pending CN115072176A (en) | 2021-03-16 | 2021-03-16 | Composite structure with low-density foaming material and reinforcing material and anti-collision filling object thereof |
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| CN (1) | CN115072176A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM258068U (en) * | 2004-05-17 | 2005-03-01 | Ghing Hung Foam Co Ltd | Buffer packing material structure for plate shape object |
| TWM258069U (en) * | 2004-05-17 | 2005-03-01 | Ghing Hung Foam Co Ltd | Improved buffering packing material structure for plate shape object |
| JP2005138853A (en) * | 2003-11-05 | 2005-06-02 | Shinano Kenshi Co Ltd | Buffer for packaging |
| TWM314190U (en) * | 2006-10-13 | 2007-06-21 | Lasting Polyfoam Co Ltd | Packing box |
| CN200974674Y (en) * | 2006-10-25 | 2007-11-14 | 常宏保丽龙有限公司 | Packing box |
| CN201330018Y (en) * | 2008-12-05 | 2009-10-21 | 郭斌 | Multi-property composite packing product |
| TWM392811U (en) * | 2010-06-24 | 2010-11-21 | Ghing Hung Foam Co Ltd | Cushioning packing structure |
-
2021
- 2021-03-16 CN CN202110281307.3A patent/CN115072176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005138853A (en) * | 2003-11-05 | 2005-06-02 | Shinano Kenshi Co Ltd | Buffer for packaging |
| TWM258068U (en) * | 2004-05-17 | 2005-03-01 | Ghing Hung Foam Co Ltd | Buffer packing material structure for plate shape object |
| TWM258069U (en) * | 2004-05-17 | 2005-03-01 | Ghing Hung Foam Co Ltd | Improved buffering packing material structure for plate shape object |
| TWM314190U (en) * | 2006-10-13 | 2007-06-21 | Lasting Polyfoam Co Ltd | Packing box |
| CN200974674Y (en) * | 2006-10-25 | 2007-11-14 | 常宏保丽龙有限公司 | Packing box |
| CN201330018Y (en) * | 2008-12-05 | 2009-10-21 | 郭斌 | Multi-property composite packing product |
| TWM392811U (en) * | 2010-06-24 | 2010-11-21 | Ghing Hung Foam Co Ltd | Cushioning packing structure |
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Application publication date: 20220920 |