CN115973604A - Method for manufacturing column film of corrugated container - Google Patents
Method for manufacturing column film of corrugated container Download PDFInfo
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- CN115973604A CN115973604A CN202310122233.8A CN202310122233A CN115973604A CN 115973604 A CN115973604 A CN 115973604A CN 202310122233 A CN202310122233 A CN 202310122233A CN 115973604 A CN115973604 A CN 115973604A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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Abstract
The application relates to a method for manufacturing a column membrane of a corrugated container, which comprises the steps of fixing a first air valve membrane on a first container membrane; fixing a second container film on the first container film and the first air valve film to form an air passage extending along the first air valve film and container cavities sequentially arranged along the first air valve film; the input end of each one-way channel on the first air valve film is communicated with the air passage, the output end of each one-way channel is communicated with the corresponding container cavity, and the part, belonging to each container cavity, on the second container film is deformed, so that in the cross-sectional direction of the container cavity, the length of the second container film belonging to the container cavity is greater than that of the first container film belonging to the container cavity, and the first air valve film is positioned between the first container film and the second container film. The application provides a gas column bag that corrugated container post membrane made that the method was made, after aerifing, its surface is level and smooth, can provide more area of contact, can improve the firm degree of pasting and the stability when stacking.
Description
Technical Field
The application relates to the technical field of packaging materials, in particular to a method for manufacturing a column film of a corrugated container.
Background
The air column bag is widely used for packaging wine products, electronic products, cosmetics, melons and fruits and other articles. At present, most of air column bags have wave-shaped inner and outer surfaces, and designated areas on two layers of container films are directly heated together in the production process, such as in korean patent application KR1020190105453 (air bag-using package box and manufacturing method thereof), and different parts are fused and joined to form an adhesive part, so that a wave-shaped column is formed after inflation.
Above-mentioned traditional wave air column bag surface is last can not paste the face list, because the adhesive area is few, and the commodity circulation in-process drops easily, consequently still need add the one deck packing when stacking with the product of this kind of air column bag packing, like the carton, because directly stack when being in the same place, relative slip can appear in adjacent air column bag, leads to the unable stable placement of goods.
Disclosure of Invention
The application provides a corrugated container post membrane manufacturing approach, can make at least one face for the plane or approximate planar corrugated container post membrane, use the gas column bag of this kind of corrugated container post membrane preparation, increase area of contact through the mode that provides level and smooth surface, can improve the firm degree of pasting and the stability when piling up.
The above object of the present application is achieved by the following technical solutions:
in a first aspect, the present application provides a method for manufacturing a column film of a corrugated container, comprising:
fixing a first air valve film on a first container film;
fixing a second container film on the first container film and the first air valve film to form an air passage extending along the first air valve film and container cavities sequentially arranged along the first air valve film; the input end of each one-way channel on the first air valve film is communicated with the air passage, the output end of each one-way channel is communicated with the corresponding container cavity, and the first air valve film is positioned between the first container film and the second container film; and
the portion of the second container film belonging to each container chamber is deformed such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber.
In one possible implementation manner of the first aspect, deforming a portion of the second container film belonging to each container cavity includes:
adsorbing the first container film using a plane on the upper adsorption mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
In one possible implementation of the first aspect, the thickness of the first container film is greater than the thickness of the second container film or the tensile strength of the first container film is greater than the tensile strength of the second container film.
In a second aspect, the present application provides a method for manufacturing a column film of a corrugated container, including:
fix the first air valve film on on the first container film;
fixing a second container film on the first container film and the first air valve film to form an air passage extending along the first air valve film and container cavities sequentially arranged along the first air valve film; the input end of each one-way channel on the first air valve film is communicated with the air passage, the output end of each one-way channel of the first air valve film is communicated with the corresponding container cavity, and the first air valve film is positioned between the first container film and the second container film;
deforming a portion of the second container film belonging to each container chamber such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber;
fixing the second air valve film on the third container film; and
fixing a second air valve film and a third container film on the second container film to form an air passage extending along the second air valve film and container cavities sequentially arranged along the second air valve film; the input end of each one-way channel on the second air valve film is communicated with the air passage, the output end of each one-way channel is communicated with the corresponding container cavity, and the second air valve film is positioned between the second container film and the third container film.
In one possible implementation of the second aspect, deforming the portion of the second container film belonging to each container cavity comprises:
adsorbing the first container film using a plane on the upper adsorption mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
In a possible implementation of the second aspect, the thickness of the second container film is less than the thickness of the first container film and the third container film or the tensile strength of the second container film is less than the tensile strength of the first container film and the third container film.
In a third aspect, the present application provides a method for manufacturing a column film of a corrugated container, including:
fixing a first air valve film on a first container film;
fixing a second container film on the first container film and the first air valve film, wherein the output end of each one-way channel on the first air valve film is communicated with the corresponding container cavity;
deforming a portion of the second container film belonging to each container chamber such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber; obtaining a single-sided corrugated column film;
fixing the second air valve film on the third container film; and
fixing a second air valve film and a third container film on the single-sided corrugated column film to form an air passage extending along the second air valve film and container cavities sequentially arranged along the second air valve film;
the output end of each one-way channel of the second air valve film is communicated with the corresponding container cavity, and the input end of each one-way channel is communicated with the air passage; the second air valve membrane is positioned between the second container membrane and the third container membrane;
the input end of each one-way channel on the first air valve membrane is communicated with the air passage.
In one possible implementation manner of the third aspect, deforming a portion of the second container film belonging to each container cavity includes:
adsorbing the first container film using a plane on the suction mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
In a possible implementation manner of the third aspect, the thickness of the second container film is smaller than the thickness of the first container film and the third container film or the tensile strength of the second container film is smaller than the tensile strength of the first container film and the third container film.
On the whole, the corrugated container column film manufacturing method provided by the application has the advantages that the outer surface of the air column bag made of the manufactured corrugated container column film is flat after the air column bag is inflated, more contact areas can be provided, and the firm degree of pasting and the stability during stacking can be improved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for manufacturing a column film of a corrugated container according to the present application.
Fig. 2 is a process flow chart of a method for manufacturing a column film of a corrugated container provided by the present application.
Fig. 3 is a schematic view of the position of a heat-sealing line when a first container film is heat-sealed with a first gas valve film.
Fig. 4 is a schematic position diagram of a heat sealing line when the first container film, the first air valve film and the second container film are heat sealed.
Fig. 5 is a schematic position diagram of a first air valve membrane provided in the present application.
FIG. 6 is a schematic illustration of the position of an airway and reservoir chamber provided by the present application.
Fig. 7 is a schematic diagram of a container cavity as provided by the present application when inflated.
Fig. 8 is a schematic diagram of a container chamber being completely inflated and then closed.
Fig. 9 is a schematic view of a process for deforming a second container film using a downdraft mold as provided herein.
Fig. 10 is a schematic diagram given based on fig. 9.
Fig. 11 is a flow chart illustrating steps of another method for manufacturing a column film for a corrugated container according to the present application.
Fig. 12 is a schematic diagram given based on fig. 11.
Fig. 13 is a schematic view of the presence of a reservoir chamber on both sides of the second reservoir membrane.
FIG. 14 is a schematic view of a corrugated container post film provided by the present application, in which the thick line indicates the location of the heat seal.
FIG. 15 is a schematic view of another corrugated container column film provided in the present application, in which a thick line indicates a heat-sealing position.
FIG. 16 is a schematic illustration of the position of one coating provided herein.
FIG. 17 is a schematic illustration of the position of another coating provided herein.
In the figure, 11, a first container film, 12, a second container film, 13, a third container film, 21, a first air valve film, 22, a second air valve film, 31, an air passage, 32, a container cavity, 4, and a coating.
Detailed Description
The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a first method for manufacturing a corrugated container column film disclosed in the present application mainly includes the following steps:
s101, fixing a first air valve film 21 on a first container film 11;
s102, fixing a second container film 12 on the first container film 11 and the first air valve film 21 to form an air channel 31 extending along the first air valve film 21 and container cavities 32 sequentially arranged along the first air valve film 21; the input end of each one-way channel on the first air valve film 21 is communicated with the air channel 31, and the output end of each one-way channel is communicated with the corresponding container cavity 32; and
s103, deforming a portion of the second container film 12 belonging to each container cavity 32 such that the length of the second container film 12 belonging to the container cavity 32 is greater than the length of the first container film 11 belonging to the container cavity 32 in the cross-sectional direction of the container cavity 32.
In step S101, the first air valve film 21 is fixed to the first container film 11 by heat sealing. In fig. 2, the first container film 11 and the first air valve film 21 are simultaneously introduced between the heat-seal die i and the lower plate i, and the heat-seal die i presses the first container film 11 and the first air valve film 21 against the lower plate i to heat-seal them together.
It should be understood that the first air valve film 21 and the first container film 11 are made of plastic and are pressed against the lower mold plate i by the heat-sealing mold i, and when a predetermined area on the first air valve film 21 or a predetermined area of the first container film 11 contacts a high-temperature area on the lower mold plate i, the first air valve film 21 and the first container film 11 are bonded together.
It should also be understood that bonding herein refers to partial area bonding, rather than complete bonding, and that the area where the two films are bonded together is referred to as the heat seal line from the product perspective, as shown by the dashed line in fig. 3.
The first air valve film 21 is positioned between the first container film 11 and the second container film 12; the first air valve film 21 is two films, a plurality of one-way channels are distributed at equal intervals, a first film of the two films is bonded with the first container film 11, a second film is bonded with the second container film 12, and the content of the part is specifically described in step S102.
In step S102, the second container film 12 is fixed to the first container film 11 and the first air valve film 21, where the fixing is still performed in a heat sealing manner, and the second container film 12 is bonded to the first container film 11 and the first air valve film 21, as shown in fig. 4. Use heat-seal mould II and lower bolster II in this step, the theory of operation of heat-seal mould II and lower bolster II is the same with the theory of operation of heat-seal mould I and lower bolster I, and this place is no longer repeated.
Referring to fig. 5 and 6, an air duct 31 extending along the short side of the first air valve film 21 and a plurality of container cavities 32 sequentially arranged along the long side of the first air valve film 21 are formed between the first container film 11 and the second container film 12, and the width of the container cavities 32 matches the pitch of the one-way channels on the first air valve film 21.
The input end of each one-way channel on the first air valve film 21 is communicated with the air channel 31, the output end of each one-way channel is communicated with the corresponding container cavity 32, and the number of the one-way channels is the same as that of the container cavities 32. When the air duct 31 is inflated, the air in the air duct 31 flows into the container chamber 32 through the one-way passage on the first air valve film 21, so that the volume of the container chamber 32 is increased, as shown in fig. 6 to 8.
Referring to fig. 9 and 10, step S103 is finally performed, in which the first container film 11 is adsorbed by using an upper adsorption mold (providing a flat surface), the second container film 12 is adsorbed by using a lower adsorption mold (providing a wavy surface), and after the adsorption deformation of the upper adsorption mold and the lower adsorption mold is completed, the length of the second container film 12 belonging to the container cavity 32 is greater than the length of the first container film 11 belonging to the container cavity 32 in the cross-sectional direction of the container cavity 32;
the effect of the deformation is that the first container film 11 is planar or nearly planar after the container chamber 32 has been inflated. It will be appreciated that in the prior art, in which the gas duct 31 and the container chamber 32 are produced by directly heat-bonding the first container film 11 and the second container film 12 together, during inflation, a portion of the first container film 11 and a portion of the second container film 12 belonging to the same container chamber 32 are simultaneously deformed, in which case the cross-sectional shape of the container chamber 32 is circular or approximately circular.
In the present application, the portion of the second container film 12 belonging to each container chamber 32 is first deformed such that the length of the second container film 12 belonging to the container chamber 32 is greater than the length of the first container film 11 belonging to the container chamber 32 in the cross-sectional direction of the container chamber 32.
During the subsequent inflation, the portion of the second container film 12 belonging to the container chamber 32 is deformed (becomes curved) to a much greater extent than the portion of the first container film 11 belonging to the container chamber 32 (is slightly curved or remains substantially unchanged).
The air column bag made of the corrugated container column film manufactured by the corrugated container column film manufacturing method disclosed by the application has the advantages that after the air column bag is inflated, the outer surface of the air column bag is flat, more contact areas can be provided, the firm degree of sticking and the stability during stacking can be improved, and the packaging process is simplified.
Referring to fig. 9 and 10, the steps of deforming the portion of the second container film 12 belonging to each container cavity 32 are as follows:
s201, adsorbing the first container film 11 by using a plane on the upper adsorption mould;
s202, the second container film 12 is adsorbed by using the deformation surface on the downdraft mold, so that the length of the second container film 12 belonging to the container cavity 32 is longer than the length of the first container film 11 belonging to the container cavity 32 in the cross-sectional direction of the container cavity 32.
Specifically, the first container film 11 and the second container film 12 are processed by using two molds (an upper suction mold and a lower suction mold). The flat surface on the upper suction mold adsorbs the first container film 11 so that the shape of the first container film 11 remains unchanged, the deformation surface on the lower suction mold adsorbs the second container film 12, and the portion of the second container film 12 belonging to each container cavity 32 is deformed, which is finally shown in fig. 10.
The principle of deformation is to adhere the second container film 12 to the deformed surface of the lower suction mold by means of negative pressure suction.
In the above process, as for the selection of the first container film 11 and the second container film 12, there are two cases:
first, the thickness of the first container film 11 is greater than the thickness of the second container film 12;
second, the tensile strength of the first container film 11 is greater than the tensile strength of the second container film 12.
Both of these ways make it possible that during inflation the part of the second container membrane 12 belonging to the container chamber 32 is deformed (becomes curved) to a much greater extent than the part of the first container membrane 11 belonging to the container chamber 32 (is slightly curved or remains substantially unchanged).
Referring to fig. 2, 6 and 11-13, the present application further discloses a second method for manufacturing a corrugated container column film, wherein a third container film 13 symmetrical to the first container film 11 is added on the basis of the first manufacturing method, and the specific steps are as follows:
s301, fixing a first air valve film 21 on a first container film 11;
s302, fixing the second container film 12 on the first container film 11 and the first air valve film 21 to form an air passage 31 extending along the first air valve film 21 and container cavities 32 sequentially arranged along the first air valve film 21; the input end of each one-way channel on the first air valve film 21 is communicated with the air channel 31, and the output end of each one-way channel on the first air valve film 21 is communicated with the corresponding container cavity 32;
s303, deforming a portion of the second container film 12 belonging to each container cavity 32, so that the length of the second container film 12 belonging to the container cavity 32 is greater than the length of the first container film 11 belonging to the container cavity 32 in the cross-sectional direction of the container cavity 32;
s304, fixing the second air valve film 22 on the third container film 13; and
s305, fixing the second air valve film 22 and the third container film 13 on the second container film 12 to form an air passage 31 extending along the second air valve film 22 and container cavities 32 arranged in sequence along the second air valve film 22; the input end of each one-way channel on the second air valve film 22 is communicated with the air channel 31, and the output end of each one-way channel is communicated with the corresponding container cavity 32.
The difference from the description of steps S101 to S103 is that the second air valve film 22 and the third container film 13 are added, and specifically, in step S304, the second air valve film 22 is fixed to the third container film 13 by the heat-seal die iii and the lower platen iii.
In step S305, the second air valve film 22 and the third container film 13 are fixed (using the heat-seal die iv and the lower die plate iv) on the second container film 12, and the air passages 31 extending along the second air valve film 22 and the container cavities 32 sequentially arranged along the second air valve film 22 are formed.
The input end of each one-way channel on the second air valve film 22 is communicated with the air channel 31, and the output end of each one-way channel is communicated with the corresponding container cavity 32.
Referring to fig. 12 and 13, in the above description, the number of the air passages 31 is two, the number of the container chambers 32 is two, the first group of the container chambers 32 is communicated with the first air passage 31 through the first air valve film 21, and the second group of the container chambers 32 is communicated with the second air passage 31 through the second air valve film 22.
The second container film 12 is located between the first container film 11 and the third container film 13, and for convenience of description, two faces of the second container film 12 are referred to as an inner face and an outer face, respectively, the inner face of the second container film 12 faces the first container film 11, and the outer face of the second container film 12 faces the third container film 13.
Thus, when the air column bag made of the corrugated container column film manufactured by the corrugated container column film manufacturing method disclosed by the application is inflated, the inner surface and the outer surface of the air column bag are flat.
The application also discloses a manufacturing method of the third corrugated container column film, which comprises the following specific steps:
s401, fixing the first air valve film 21 on the first container film 11;
fixing a second container film 12 on the first container film 11 and the first air valve film 21 to obtain a single-sided corrugated column film; the container cavities 32 on the single-sided corrugated column film are sequentially arranged along the first air valve film 21, and the output end of each one-way channel on the first air valve film 21 is communicated with the corresponding container cavity 32;
s402, deforming a portion of the second container film 12 belonging to each container cavity 32 such that the length of the second container film 12 belonging to the container cavity 32 is greater than the length of the first container film 11 belonging to the container cavity 32 in the cross-sectional direction of the container cavity 32; obtaining a single-sided corrugated column film;
s403, fixing the second air valve film 22 on the third container film 13; and
s404, fixing the second air valve film 22 and the third container film 13 on a single-sided corrugated column film to form an air channel 31 extending along the second air valve film 22 and container cavities 32 sequentially arranged along the second air valve film 22;
s405, the output end of each one-way channel of the second air valve film 22 is communicated with the corresponding container cavity 32, and the input end of each one-way channel is communicated with the air channel 31; the input end of each one-way channel on the first air valve film 21 is communicated with the air channel 31.
In comparison with fig. 14 and 15, the number of air passages 31 is adjusted to one as compared with the contents described in step S301 to step S305.
Referring to fig. 16 and 17, in the second and third manufacturing methods, in the step of heat-sealing the third container film 13, a coating 4 needs to be applied on the first container film 11 or the second air valve film 22 in advance, and the coating 4 is used to prevent the first container film 11 and the second air valve film 22 from being bonded together at the corresponding positions when the second air valve film 22 and the third container film 13 are heat-sealed.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A method for manufacturing a column film of a corrugated container, comprising:
fixing a first air valve film on a first container film;
fixing a second container film on the first container film and the first air valve film to form an air passage extending along the first air valve film and container cavities sequentially arranged along the first air valve film; the input end of each one-way channel on the first air valve film is communicated with the air passage, the output end of each one-way channel is communicated with the corresponding container cavity, and the first air valve film is positioned between the first container film and the second container film; and
the portion of the second container film belonging to each container chamber is deformed such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber.
2. The method of manufacturing a corrugated container column film according to claim 1, wherein the deforming a portion of the second container film belonging to each container cavity comprises:
adsorbing the first container film using a plane on the suction mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
3. The method of manufacturing a corrugated container column film according to claim 1 or 2, wherein the thickness of the first container film is greater than the thickness of the second container film or the tensile strength of the first container film is greater than the tensile strength of the second container film.
4. A method for manufacturing a column film of a corrugated container, comprising:
fixing a first air valve film on a first container film;
fixing a second container film on the first container film and the first air valve film to form an air passage extending along the first air valve film and container cavities sequentially arranged along the first air valve film; the input end of each one-way channel on the first air valve film is communicated with the air passage, and the output end of each one-way channel of the first air valve film is communicated with the corresponding container cavity; the first air valve membrane is positioned between the first container membrane and the second container membrane;
deforming a portion of the second container film belonging to each container chamber such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber;
fixing the second air valve film on the third container film; and
fixing a second air valve film and a third container film on the second container film to form an air passage extending along the second air valve film and container cavities sequentially arranged along the second air valve film; the input end of each one-way channel on the second air valve film is communicated with the air passage, and the output end of each one-way channel is communicated with the corresponding container cavity; the second air valve membrane is located between the second container membrane and the third container membrane.
5. The method of manufacturing a corrugated container column film according to claim 4, wherein the deforming a portion of the second container film belonging to each container cavity comprises:
adsorbing the first container film using a plane on the upper adsorption mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
6. The corrugated container column film manufacturing method according to claim 4 or 5, wherein the thickness of the second container film is smaller than the thicknesses of the first container film and the third container film or the tensile strength of the second container film is smaller than the tensile strengths of the first container film and the third container film.
7. A method for manufacturing a column film of a corrugated container, comprising:
fixing a first air valve film on a first container film;
fixing a second container film on the first container film and the first air valve film, wherein the output end of each one-way channel on the first air valve film is communicated with the corresponding container cavity; the first air valve membrane is positioned between the first container membrane and the second container membrane;
deforming a portion of the second container film belonging to each container chamber such that the length of the second container film belonging to the container chamber is greater than the length of the first container film belonging to the container chamber in the cross-sectional direction of the container chamber; obtaining a single-sided corrugated column film;
fixing the second air valve film on the third container film; and
fixing a second air valve film and a third container film on the single-sided corrugated column film to form an air passage extending along the second air valve film and container cavities sequentially arranged along the second air valve film;
the output end of each one-way channel of the second air valve film is communicated with the corresponding container cavity, and the input end of each one-way channel is communicated with the air passage; the second air valve membrane is positioned between the second container membrane and the third container membrane;
the input end of each one-way channel on the first air valve membrane is communicated with the air passage.
8. The method of manufacturing a corrugated container column film according to claim 7, wherein the deforming a portion of the second container film belonging to each container cavity comprises:
adsorbing the first container film using a plane on the suction mold;
and adsorbing the second container film by using the deformation surface on the downdraft mold, so that the length of the second container film belonging to the container cavity is greater than the length of the first container film belonging to the container cavity in the cross-sectional direction of the container cavity.
9. The corrugated container column film manufacturing method according to claim 7 or 8, wherein the thickness of the second container film is smaller than the thicknesses of the first container film and the third container film or the tensile strength of the second container film is smaller than the tensile strengths of the first container film and the third container film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310122233.8A CN115973604A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing column film of corrugated container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310122233.8A CN115973604A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing column film of corrugated container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115973604A true CN115973604A (en) | 2023-04-18 |
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ID=85976231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310122233.8A Pending CN115973604A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing column film of corrugated container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115973604A (en) |
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2023
- 2023-02-16 CN CN202310122233.8A patent/CN115973604A/en active Pending
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