TWM627822U - Coating package film - Google Patents

Abstract

A paint packaging film, suitable for packaging the paint, and comprising an inner layer suitable for being heated and melted to encapsulate the paint, a surface layer spaced from the inner layer, and a main barrier disposed between the inner layer and the outer layer at intervals layers, and a first isolation layer connecting the primary barrier layers. The material of the inner layer contains either cast polypropylene or polyethylene with corrosion resistance, the surface layer is used for graphic printing, and the material contains either polyethylene terephthalate or nylon. The material of each main barrier layer is metal, and the first isolation layer includes a material containing any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or cast polypropylene. the base, and at least one covering part attached to at least one side of the base and made of polyvinylidene chloride.

Description

Coating Packaging Film

The new model relates to a packaging film, in particular to a coating packaging film.

Most of the existing paint packaging uses metal cans with water and gas barrier effects such as seamless cans or easy-to-open cans. However, because paints such as paint are corrosive to metal materials, the industry often coats metal cans with organic materials. Resin increases its corrosion resistance to reduce the possibility of metal walls losing airtightness due to corrosion damage, thereby preventing paint deterioration due to moisture or oxidation.

However, after the metal can is formed, the volume and shape will not change, so it will be limited by the solid form during storage and transportation, and it is difficult to maximize the space utilization rate. If the number of metal cans stored in a fixed space Less, it is bound to require more storage or transportation space, or require more transportation and increase the cost. In addition, due to the high viscosity of paint, it often adheres to the metal wall during use, and it is difficult to completely discharge the can body. The residual paint will lead to waste or secondary pollution. Therefore, it is necessary to find another packaging material suitable for paint to improve the the above problem.

Therefore, the purpose of the present invention is to provide a coating packaging film that can improve the utilization rate of storage space and the degree of sealing, and can completely use the contents.

Therefore, the novel paint packaging film is suitable for packaging the paint, and includes an inner layer suitable for being heated and melted to encapsulate the paint, a surface layer spaced from the inner layer, and two spaced apart from the inner layer and the outer layer. main barrier layers between them, and a first isolation layer connecting the main barrier layers. The material of the inner layer contains either cast polypropylene or polyethylene with corrosion resistance, the surface layer is used for graphic printing, and the material contains either polyethylene terephthalate or nylon. The material of each main barrier layer is metal, and the first isolation layer includes a material containing any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or cast polypropylene the base, and at least one covering part attached to at least one side of the base and made of polyvinylidene chloride.

The effect of the present invention lies in that the inner layer, the surface layer, the main barrier layer, and the first isolation layer, which are flexible in texture and have good airtightness, cooperate with each other, so that the packaging bag made of the present invention can be stored and transported during storage and transportation. During the process, it can be slightly deformed according to the changes of the environment, which is convenient for storage and not easy to break, which can improve the utilization rate of storage space, and can effectively avoid the deterioration of the paint due to contact with air. In addition, most of the coating can be extruded through a squeeze bag for complete use.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

Referring to FIG. 1 , a first embodiment of the novel paint packaging film is suitable for packaging the paint (not shown). It should be explained in advance that in the first embodiment, the paint is a common paint on the market, or other liquid paints composed of polymer materials and corrosive to metals as an example. In one embodiment, the types of coatings that can be packaged are not limited thereto.

The first embodiment includes an inner layer 1 suitable for being heated and melted to encapsulate the paint, a surface layer 2 spaced from the inner layer 1 , and two main barrier layers spaced between the inner layer 1 and the surface layer 2 3, and a first isolation layer 4 connecting the main barrier layers 3 . In the first embodiment, the inner layer 1 , the surface layer 2 , the main barrier layers 3 , and the first isolation layer 4 are bonded by bonding means such as gluing to avoid peeling off each other, and the bonding The means and the type of glue used for gluing are not particularly limited, as long as the function of the first embodiment is not affected.

The material of the inner layer 1 contains either cast polypropylene (CPP) or polyethylene (PE) with corrosion resistance, preferably cast polypropylene or linear low density polyethylene (LLDPE). The surface layer 2 is used for graphic printing, and the material contains either polyethylene terephthalate (PET) or nylon (Nylon). The material of each main barrier layer 3 is metal, preferably aluminum, or aluminum oxide (eg, aluminum oxide Al ₂ O ₃ ). In the first embodiment, the thickness of the inner layer 1 is preferably 10 μm to 200 μm, so as to provide a better thermal fusion effect, and the thickness of the surface layer 2 is preferably 5 μm to 50 μm, so it is relatively straight and has a relatively high thickness. For better printability, the thickness of each main barrier layer 3 is preferably 6 μm to 25 μm to completely block moisture.

The first isolation layer 4 includes a base portion 41 made of polymer synthetic resin, and a coating portion attached to one side of the base portion 41 and made of halogen resin, metal oxide, or silicon nitride compound. 42. The material of the base portion 41 preferably contains any one of nylon (Nylon), polyethylene terephthalate (PET), or polypropylene (PP). Form any film aspect of Oriented Oriented Polypropylene (OPP), Biaxially Oriented Polypropylene (BOPP), or Cast Polypropylene (CPP) to meet different environmental requirements. In addition, the material of the covering portion 42 preferably contains polyvinylidene chloride (PVDC), aluminum oxide (Al ₂ O ₃ ), magnesium oxide (MgO), silicon nitride (SiN), or silicon oxynitride (SiON) either.

When the first embodiment is actually used, graphics and texts can be printed on the surface layer 2 first, and then the inner layer 1 is facing the inner side, the first embodiment is surrounded and processed into a bag shape, and then the paint is filled. Then, it is sealed by heating or gluing, so that the paint can be stored or transported in the form of bags. The requirement or configuration is slightly deformed to facilitate storage to improve the utilization of storage space. When the paint packaged in the first embodiment is used, most of the paint can be extruded through the extrusion bag body, and the paint can be used completely.

Since the inner layer 1 will directly contact the corrosive paint when the paint is packaged in the first embodiment, the inner layer 1 becomes fragile in order to avoid the redox reaction between the inner layer 1 and the paint. Even broken, therefore, choosing cast polypropylene or linear low density polyethylene with corrosion resistance as the material of the inner layer 1 can improve the durability and service life of the inner layer 1 . In addition, utilizing the thermoplasticity of cast polypropylene or linear low density polyethylene, in addition to the first embodiment can be processed by gluing, it can be easily heated into bags or other desired shapes.

The surface layer 2 is made of polyethylene terephthalate and nylon, both of which have good printing adaptability, and can be used for over-color printing to make a beautiful appearance, so as to attract consumers to buy. In addition, the aforementioned materials can provide higher support force, impact resistance, and puncture resistance strength, thereby enhancing the overall structural strength of the first embodiment, making the first embodiment less likely to be impacted by external forces and permanently deformed or rupture.

The main barrier layers 3 use aluminum or aluminum oxides to have excellent water-blocking, gas-blocking, and light-blocking properties, and can simultaneously prevent water vapor, oxygen, and light from the outside from reacting with the coating, thereby Provides excellent barrier effect to avoid deterioration of the coating due to moisture, oxidation, or light. In addition, aluminum or aluminum oxide is in the form of a flexible thin layer with a thickness of 6 μm to 25 μm, and can be closely adhered to the first isolation layer 4 and can be deformed. Even when one of the main barrier layers 3 is ruptured due to an external force in the first embodiment, the second main barrier layer 3 can still exert a barrier effect, which can effectively disperse the risk of hole breakage and prevent penetration.

In addition, during the film forming process of the aluminum metal film, due to the influence of external environmental factors such as fine dust, humidity, or temperature in the manufacturing plant, the main barrier layers 3 are more likely to generate tiny holes (Pinholes). 3 If it is slightly impacted or pulled by the outside world, it is easy to generate cracks (Crack) along the hole, resulting in the loss of the function of blocking water vapor and oxygen. After all, the probability of two-layer cracks occurring at the same point is very small, so this new model adopts the main structural features of the two-layer symmetrical main barrier layer 3 to avoid paint deterioration.

According to the selection of the material of the first isolation layer 4, the first embodiment can be listed in two embodiments: in the first embodiment, the base 41 is made of nylon, polyethylene terephthalate, directional Any one of stretched polypropylene, biaxially stretched polypropylene, or cast polypropylene, the covering part 42 is made of polyvinylidene chloride, and the polyvinylidene chloride is attached to the base part 41 by means of evaporation. one side. In the second implementation form of the first embodiment, the base portion 41 is made of polyethylene terephthalate, and the covering portion 42 is made of aluminum oxide, and the aluminum oxide is attached to the surface by sputtering. One side of the base 41 .

Both of the above two embodiments can form the covering portion 42 with a dense structure and a thin layer shape, which can further improve the water blocking performance through the improvement of the material density, so that the first embodiment has excellent corrosion resistance and structural strength. . In addition, in the second embodiment, since the aluminum oxide can also block oxygen, the first isolation layer 4 can have the function of blocking gas, thereby further improving the air tightness of the first embodiment. It should be noted that, in other implementations of the first embodiment, the setting position of the covering portion 42 is not limited to the position shown in FIG. 1 , and the covering portion 42 can also be arranged in the direction of the base 41 facing One side of the surface layer 2 can also cooperate with the base portion 41 to improve the sealing degree of the first embodiment.

Since the materials used for the inner layer 1 , the surface layer 2 , the main insulating layer 3 , and the first insulating layer 4 have flexibility and certain structural strength, the texture of the first embodiment is flexible, thereby making the In the process of storage and transportation, the packaging bag made by the first embodiment can be slightly deformed according to the change of the environment, which is convenient for storage, and is not easy to be broken when it is hit or stabbed by foreign objects, which effectively avoids this problem. The paint deteriorates due to contact with air, and even leaks outward. In addition, the materials used for the inner layer 1, the surface layer 2, the main barrier layer 3, and the first isolation layer 4 all have good sealing properties. The multi-layered structure can disperse the external force, in addition to buffering the external force, it can also prevent foreign objects from penetrating the first embodiment at one time, thereby effectively prolonging the service life of the first embodiment.

Referring to FIG. 2 , a second embodiment of the novel paint packaging film, the second embodiment is substantially the same as the first embodiment, the difference lies in that the first isolation layer 4 includes two opposite sides attached to the base 41 respectively. the covering portion 42 of the surface. In this way, by increasing the number of the covering parts 42 with dense structure, and cooperating with the covering parts 42 to cover the two opposite sides of the base part 41 at the same time, the airtightness of the second embodiment can be further improved. The water tightness and puncture resistance make the overall structure of the second embodiment stronger and tougher, and can withstand larger external forces without being damaged compared to the first embodiment.

Referring to FIG. 3 , a third embodiment of the novel paint packaging film, the third embodiment is substantially the same as the second embodiment, the difference is that it also includes two main barrier layers 3 respectively connected to the main barrier layers 3 opposite to the second embodiment. A second isolation layer 5 on one side of the isolation layer 4, each of the second isolation layers 5 includes a body portion 51 made of a polymer synthetic resin, and a material attached to one side of the body portion 51, and the material contains a halogen property The coating portion 52 of any one of resin, metal oxide, or silicon nitride. The material of the body parts 51 preferably contains any one of nylon, polyethylene terephthalate, or polypropylene, wherein polypropylene can be preferably formed into oriented stretch polypropylene, Biaxially oriented polypropylene, or cast polypropylene in any form of film to meet different environmental requirements. In addition, the material of the coating parts 52 preferably contains any one of polyvinylidene chloride, aluminum oxide, magnesium oxide, silicon nitride, or silicon oxynitride.

According to the material selection of the first isolation layer 4 and the second isolation layers 5, the third embodiment can enumerate various implementation aspects. Regarding the material selection of the first isolation layer 4, since the first implementation It is described in an example, so it will not be repeated here. Regarding the material selection of the second isolation layers 5, in the first embodiment, the body parts 51 are made of nylon, polyethylene terephthalate, oriented polypropylene, and biaxially oriented polypropylene. , or cast polypropylene, the coating parts 52 are made of polyvinylidene chloride, and the polyvinylidene chloride is attached to one side of the body parts 51 by means of vapor deposition. In the second embodiment, the body parts 51 are made of polyethylene terephthalate, and the coating parts 52 are made of aluminum oxide, and the aluminum oxide is attached to the One side of the body portion 51 .

Both of the aforementioned two embodiments can form the coating portions 52 with dense structures and in the shape of thin layers, which can further improve the water-blocking performance through the improvement of the material density, so that the third embodiment can use the second embodiment. The addition of the isolation layer 5 results in better sealing and structural strength than the first embodiment and the second embodiment. In addition, in the second aspect of the third embodiment, since the aluminum oxide can also block oxygen, the second isolation layers 5 can have a gas-barrier effect, thereby further improving the third embodiment. example of airtightness.

It should be noted that, in other implementations of the third embodiment, the number of the covering portions 42 is not limited to two, and the first isolation layer 4 may also include only one covering portion 41 attached to the base portion 41 . The coating portion 42 on either side of the coating can also achieve the effect of sealing the coating.

Referring to FIG. 4, a fourth embodiment of the novel paint packaging film, the fourth embodiment is substantially the same as the third embodiment, the difference is that each second isolation layer 5 includes two attached to the main body portion 51 respectively. Coating parts 52 on opposite sides. In this way, by increasing the number of the coating parts 52 with dense structure, and cooperating with the coating parts 52 to cover the two opposite sides of the main body part 51 at the same time, the gas performance of the fourth embodiment can be further improved. Tightness, water tightness, and puncture resistance make the overall structure of the fourth embodiment stronger and tougher. Compared with the third embodiment, it can still remain undamaged when subjected to larger external forces. Can achieve excellent durability and service life.

To sum up, the novel coating packaging film of the present invention is made of the inner layer 1 , the surface layer 2 , the main barrier layer 3 , the first isolation layer 4 , and the second isolation layer 5 , which are flexible in texture and good in sealing performance. With the coordination, the packaging bags made of the present invention can be slightly deformed according to the changes of the environment during the process of storage and transportation, which is convenient for storage and not easy to be broken, which can improve the utilization rate of storage space and can effectively avoid the Paint deteriorates from exposure to air. In addition, when using the paint packaged by the present invention, most of the paint can be extruded through a squeeze bag to achieve complete use, so the purpose of the present invention can indeed be achieved.

However, the above are only examples of the present invention, which should not limit the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application for this new model and the contents of the patent specification are still within the scope of the present invention. within the scope of this new patent.

1: inner layer 2: Surface layer 3: Main barrier layer 4: The first isolation layer 41: Base 42: Covered part 5: Second isolation layer 51: body part 52: Coating Department

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a schematic cross-sectional view illustrating a first embodiment of the novel coating packaging film; 2 is a schematic cross-sectional view illustrating a second embodiment of the novel coating packaging film; 3 is a schematic cross-sectional view illustrating a third embodiment of the novel coating packaging film; and Figure 4 is a schematic cross-sectional view illustrating a fourth embodiment of the novel paint packaging film.

1: inner layer

2: Surface layer

3: Main barrier layer

4: The first isolation layer

41: Base

42: Covered part

Claims (10)

A paint packaging film suitable for packaging the paint and comprising: An inner layer, suitable for heat-melting to encapsulate the coating, and the material contains either cast polypropylene or polyethylene with corrosion resistance; a surface layer, arranged at intervals from the inner layer, and used for graphic printing, and the material contains either polyethylene terephthalate or nylon; Two main barrier layers, arranged at intervals between the inner layer and the surface layer, and made of metal; and A first isolation layer connecting the main barrier layers and comprising a material containing any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or cast polypropylene A base, and at least one covering part attached to at least one side of the base and made of polyvinylidene chloride. A paint packaging film suitable for packaging the paint and comprising: An inner layer, suitable for heat-melting to encapsulate the coating, and the material contains either cast polypropylene or polyethylene with corrosion resistance; a surface layer, arranged at intervals from the inner layer, and used for graphic printing, and the material contains either polyethylene terephthalate or nylon; Two main barrier layers, arranged at intervals between the inner layer and the surface layer, and made of metal; and A first isolation layer connecting the main barrier layers and comprising a material containing any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or cast polypropylene The base, and at least one covering part attached to at least one side of the base, and the material includes aluminum oxide, magnesium oxide, silicon nitride, or silicon oxynitride. The coating packaging film according to claim 1 or 2, wherein the material of each main barrier layer is aluminum or aluminum oxide. The coating packaging film of claim 1 or 2, wherein the thickness of each primary barrier layer is 6 μm to 25 μm. The paint packaging film according to claim 1 or 2, wherein the first isolation layer comprises two covering portions respectively attached to opposite sides of the base portion. The coating packaging film according to claim 1 or 2, wherein the material of the inner layer contains any one of cast polypropylene or linear low density polyethylene. The paint packaging film as claimed in claim 1 or 2, further comprising two second isolation layers respectively connected to one side of the main barrier layers opposite to the first isolation layer, each second isolation layer comprising a material containing nylon , Polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or the body part of any one of cast polypropylene, and at least one attached to at least one side of the body part and the material contains polyethylene Coated part of vinylidene chloride. The paint packaging film as claimed in claim 7, wherein each second isolation layer includes two coating portions respectively attached to opposite sides of the body portion. The paint packaging film as claimed in claim 1 or 2, further comprising two second isolation layers respectively connected to one side of the main barrier layers opposite to the first isolation layer, each second isolation layer comprising a material containing nylon, A body part of any one of polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene, or cast polypropylene, and at least one body part attached to at least one side of the body part, and the material contains alumina , magnesium oxide, silicon nitride, or silicon oxynitride coating part. The paint packaging film according to claim 9, wherein each of the second isolation layers includes two coating portions respectively attached to opposite sides of the body portion.

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