CN113562318A - Paint coating packaging bag - Google Patents
Paint coating packaging bag Download PDFInfo
- Publication number
- CN113562318A CN113562318A CN202010353356.9A CN202010353356A CN113562318A CN 113562318 A CN113562318 A CN 113562318A CN 202010353356 A CN202010353356 A CN 202010353356A CN 113562318 A CN113562318 A CN 113562318A
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- CN
- China
- Prior art keywords
- paint
- metal layer
- film
- packaging bag
- paint coating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
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- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
A paint coating packaging bag is suitable for packaging paint coatings and comprises an inner film, a main film and an outer film, wherein the main film covers the inner film, and the outer film covers the main film and is used for printing pictures and texts. The inner film defines a containing space suitable for containing the paint, the material with corrosion resistance is selected, and the inner film is sealed through hot melting in the containing space. The main film comprises a metal layer and protective layers respectively positioned on two opposite sides of the metal layer, and each protective layer is provided with a base layer part and a first plating part formed on one side of the base layer part far away from the metal layer. The main film has good water-blocking and air-blocking effects, so that the accommodating space is in a completely airtight state during packaging, and the paint is prevented from being affected with damp, oxidized or deteriorated.
Description
Technical Field
The invention relates to a packaging bag, in particular to a packaging bag for containing paint.
Background
The traditional method for packaging paint coating is to use a metal can with water-blocking and air-blocking effects such as a seamless can or a pop can, but because the paint coating has corrosivity to metal materials, in order to ensure that the metal can is not corroded and damaged due to contact with the paint coating, organic resin is coated in the can to prevent the contained paint coating from directly contacting the metal materials, so that the corrosion resistance of the container is improved, the possibility that the air tightness is lost due to holes generated by the corrosion of the metal wall surface is reduced, and the paint coating is prevented from being affected with damp, oxidized and deteriorated.
However, the volume and shape of the metal cans are fixed, so that they are limited by the solid type during storage and transportation, and thus the metal cans cannot be efficiently stored in a dense space, and from the viewpoint of transportation, the number of seamless cans stored in the fixed space is small, which necessitates more space or more times of transportation, thereby increasing the cost.
In addition, in the use condition of the metal can, due to the characteristics that the paint coating is high in viscosity and adheres to the wall, all the paint coating in the can body is difficult to pour out, so that the residual paint coating is remained in the can body, and waste or secondary pollution is caused.
Further, the metal can is difficult to completely discharge the contained paint during use, resulting in a waste of paint remaining in the can. It is an improvement goal of the industry to find another packaging type suitable for paint coatings to improve the above problems.
Disclosure of Invention
The invention aims to provide a paint coating packaging bag which is easy to store and transport in shape, has high air tightness and can effectively use the content.
The paint coating packaging bag is suitable for packaging paint coatings and comprises an inner film, a main film and an outer film.
The inner film defines a containing space suitable for containing the paint, the material of the inner film is selected from cast polypropylene or polyethylene with corrosion resistance, and the inner film is hot-melted to seal the containing space.
The main membrane cladding the inner membrance, and include the metal level, and be located respectively the protective layer of the opposite both sides of metal level, each protective layer have the material include nylon, polyethylene terephthalate, oriented polypropylene, biaxial stretching polypropylene, or the basic unit portion of any one of curtain coating polypropylene, and form in basic unit portion keeps away from one side of metal level, and the material includes the first portion of plating of polyvinylidene chloride that attaches.
The outer film coats the main film and is used for image-text printing, and the material is polyethylene terephthalate or nylon.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the inner film is made of linear low density polyethylene.
Preferably, the metal layer is made of aluminum metal.
Preferably, each protection layer further has a second plating part formed between the base part and the metal layer and having the same material as the first plating part.
The paint coating packaging bag is suitable for packaging paint coatings and comprises an inner film, a main film and an outer film.
The inner film defines a containing space suitable for containing the paint, the material of the inner film is selected from cast polypropylene or polyethylene with corrosion resistance, and the inner film is hot-melted to seal the containing space.
The main membrane cladding the inner membrance, and include the metal level, and be located respectively the protective layer of the opposite both sides of metal level, each protective layer have the material include nylon, polyethylene terephthalate, oriented polypropylene, biaxial stretching polypropylene, or curtain coating polypropylene any kind of basic unit portion, and form in basic unit portion keeps away from one side of metal level, and the material includes the first plating of any kind in aluminium oxide, magnesium oxide, silicon nitride, or silicon oxynitride attaches the portion.
The outer film coats the main film and is used for image-text printing, and the material is polyethylene terephthalate or nylon.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the inner film is made of linear low density polyethylene.
Preferably, the metal layer is made of aluminum metal.
Preferably, each protection layer further has a second plating part formed between the base part and the metal layer and having the same material as the first plating part.
The invention has the beneficial effects that: compared with metal cans, the paint coating packaging bags can slightly change the shape of the accommodating space through the soft wall surface, so that a plurality of packaging bags are easy to be mutually and tightly contacted and densely stored, the space can be properly utilized for storage, and the transportation is facilitated. In the using process, most of paint in the bag body can be discharged through extrusion, so that the situation of waste is avoided. In addition, the protective layer can provide stronger tensile strength, and the complete structure can be kept even if the protective layer is impacted by external force by matching with the high corrosion resistance of the material of the inner film, so that the paint coating packaging bag can maintain high air tightness.
Drawings
FIG. 1 is a perspective view illustrating a first embodiment of the paint coating package of the present invention enclosing paint;
FIG. 2 is a side view in cross section illustrating two inner membranes, two main membranes, two outer membranes and a receiving space of the first embodiment;
FIG. 3 is a partial cross-sectional view illustrating the composition of the first embodiment; and
fig. 4 is a partial cross-sectional view illustrating the composition of a second embodiment of the paint coating package of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1, a first embodiment of the paint packaging bag of the present invention, which is suitable for packaging paint 1, is embodied as a bag body 100 having a substantially rectangular appearance. In the first embodiment, the paint 1 is illustrated as a commercially available paint or other liquid coating made of polymer material and corrosive to metal, but the first embodiment is not limited to the above-mentioned characteristics.
Referring to fig. 2, the first embodiment includes two inner films 2 cooperating with each other to define a containing space 20 suitable for containing the paint 1, two main films 3 covering the inner films 2, and two outer films 4 covering the main films 3. The inner film 2, the main film 3, and the outer film 4 are bonded to each other by an adhesive, which is not particularly limited as long as the function of the first embodiment is not affected, so as to prevent the adjacent films from being peeled. Since the adhesive is only one prior art example of the bonding means between the inner film 2 and the main mold 3 and between the main film 3 and the outer film 4, the adhesive is not a technical feature of the present invention, and thus is not shown in the drawings. In addition, the number of the inner membrane 2, the main membrane 3 and the outer membrane 4 is not limited, and the number of the inner membrane, the main membrane and the outer membrane may be one, as long as the accommodating space 20 for accommodating the paint 1 is formed in a surrounding manner.
The inner films 2 are thin films with a thickness of 10 μm to 200 μm, and peripheral areas of the two inner films 2 are bonded to each other through hot melting and bonding processes to form the accommodating space 20 for hermetically accommodating the paint 1. In addition, since the inner film 2 is in direct contact with the paint coating 1, corrosion resistance is necessary for the material selection in consideration of the corrosive property of the paint coating 1. Therefore, the material of the inner film 2 can be selected from cast polypropylene (CPP) or Polyethylene (PE), and preferably Linear Low Density Polyethylene (LLDPE), so as to improve the corrosion resistance grade of the inner film 2, and avoid the oxidation-reduction reaction between the inner film 2 and the paint 1, which leads to the loss and even the rupture of the inner film 2.
Referring to fig. 3, each main film 3 includes a metal layer 31 and two protective layers 32 respectively disposed on opposite sides of the metal layer 31. The metal layer 31 is connected to the protection layer 32 by the adhesive. The metal layer 31 of the first embodiment is an aluminum foil with a thickness of 6 μm to 18 μm, and due to the material characteristics of the aluminum metal, the penetration of water vapor and the passage of oxygen from the outside into the accommodating space 20 can be simultaneously limited to react with the paint 1, so that the excellent barrier effect is exerted, and the paint 1 is prevented from being oxidized, dampened or deteriorated. In addition, since the aluminum foil has better ductility, the overall appearance of the first embodiment may be slightly deformed depending on the environment to facilitate storage, compared to a metal can having a fixed shape.
Each of the passivation layers 32 has a thickness of 15 μm to 300 μm, and has a base portion 321 and a first plating portion 322 formed on a side of the base portion 321 away from the metal layer 31 by a deposition technique such as evaporation and sputtering. The material of the base portion 321 may be Nylon (Nylon), polyethylene terephthalate (PET), or biaxially oriented polypropylene (BOPP). The material of the first plating part 322 can be selected from halogen resin of polyvinylidene chloride (PVDC) and aluminum oxide (Al)2O3) And metal oxides of magnesium oxide (MgO), silicon nitride (SiN), and silicon nitride compounds of silicon oxynitride (SiON). It is particularly noted that the protection layer 32 itself also has water blocking and air blocking effects, and the design that the protection layer 32 is attached to the two opposite sides of the metal layer 31 can further improve the blocking capability of the main film 3, so that the accommodating space 20 can achieve a completely airtight effect.
According to the above-mentioned material combination of the protective layer 32, two implementation aspects of the first embodiment are illustrated below:
in a first embodiment, polyvinylidene chloride (PVDC) is attached to the side of the base portion 321 away from the corresponding metal layer 31 by evaporation to form the first thin plated portion 322, so that the compactness of the material is improved, thereby further improving the water blocking capability. The base portion 321 is made of any one of Nylon (Nylon), polyethylene terephthalate (PET), or polypropylene (PP) as described above, and can exert the flexibility and the high puncture strength of the material, so that the base portion can be tightly attached to the metal layer 31 and can be deformed therewith, and the effect of protecting the soft metal layer 31 is achieved, and the metal layer 31 is prevented from being damaged by external impact. In this embodiment, the polypropylene (PP) may be formed into any one of an oriented polypropylene (OPP) film, a biaxially oriented polypropylene (BOPP) film, or a cast polypropylene (CPP) film according to different film processing processes, thereby meeting different environmental requirements.
The second embodiment is to mix alumina (Al)2O3) The first plating portion 322 is deposited to form a thin layer by sputtering on the side of the base portion 321 made of polyethylene terephthalate (PET) away from the corresponding metal layer, so that the water-blocking capability is further improved due to the higher density property, and the first embodiment has better corrosion resistance and structural strength. In addition, due to aluminum oxide (Al)2O3) The oxygen barrier function is provided, so that the protective layer 32 has the function of gas barrier, thereby further improving the barrier capability of the first embodiment.
The thickness of the outer film 4 is 5 μm to 50 μm, and the material can be selected from polyethylene terephthalate (PET) or Nylon (Nylon), so that the outer film 4 can be used for chromatography printing to achieve a fine appearance effect by exerting the characteristic that the materials have good printing adaptability, and in addition, the outer film 4 has strong supporting force and impact resistance because the materials have strong material strength, thereby strengthening the overall structural strength of the first embodiment and being less susceptible to permanent deformation, fracture and the like caused by external force.
In the aluminum metal film making process, due to the influence of factory environment factors such as tiny dust, humidity or temperature, the metal layer 31 is easy to generate holes (Pinhole), and when the metal layer 31 is slightly impacted or pulled from the outside, cracks (Crack) are easily generated along the holes, so that the function of blocking water vapor and oxygen is lost. Therefore, due to the flexible characteristic of the protection layer 32 and the symmetrical fit to the structural features of the two opposite sides of the metal layer 31, the tensile strength, the cohesion and the puncture resistance of the metal layer 31 are improved, so that the damage caused by external impact or pulling is avoided, the blocking capability of the main film 3 is maintained, and the deterioration of the paint 1 is avoided.
In addition, since the metal layer 31 is made of aluminum foil, the characteristic of better ductility of the material is exerted, so that the first embodiment has better ductility, the appearance of the bag body 100 with a generally rectangular shape can be slightly deformed, the bag body is less prone to be limited by the environment in storage, and a plurality of first embodiments are easier to be in close contact with each other to achieve dense storage. In order to effectively utilize the residue, the flexible and squeezable property of the metal layer 31 is utilized to squeeze the bag body 100 to discharge the contained paint 1, so that the paint 1 remained in the bag body 100 is reduced, and the waste and the recontamination can be avoided.
Referring to fig. 4, a second embodiment of the paint packaging bag of the present invention, which is different from the first embodiment: each of the passivation layers 32 further has a second plating portion 323 formed between the base portion 321 and the metal layer 31 by deposition techniques such as evaporation and sputtering. Specifically, the material of the second plating portion 323 is selected to be the same as the material of the first plating portion 322. The second embodiment not only has better performance in air tightness, but also can further improve the puncture resistance of the protection layer 32, so that the packaging structure of the bag body 100 has higher strength, and can bear larger external force without being damaged.
Claims (8)
1. A paint coating packaging bag is suitable for packaging paint coatings; the method is characterized in that: the paint coating packaging bag comprises:
the inner film defines a containing space suitable for containing the paint, is made of cast polypropylene or polyethylene with corrosion resistance, and seals the containing space through hot melting;
the main film coats the inner film and comprises a metal layer and protective layers respectively positioned on two opposite sides of the metal layer, each protective layer is provided with a base layer part made of any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene or cast polypropylene and a first plating part formed on one side of the base layer part far away from the metal layer and made of polyvinylidene chloride; and
and the outer film coats the main film and is used for image-text printing, and the material is selected from polyethylene terephthalate or nylon.
2. The paint coating packaging bag according to claim 1, wherein: the inner film is made of linear low-density polyethylene.
3. The paint coating packaging bag according to claim 1, wherein: the metal layer is made of aluminum metal.
4. The paint coating packaging bag according to claim 1, wherein: each protective layer also has a second plating part which is formed between the base part and the metal layer and has the same material as the first plating part.
5. A paint coating packaging bag is suitable for packaging paint coatings; the method is characterized in that: the paint coating packaging bag comprises:
the inner film defines a containing space suitable for containing the paint, is made of cast polypropylene or polyethylene with corrosion resistance, and seals the containing space through hot melting;
the main film coats the inner film and comprises a metal layer and protective layers respectively positioned on two opposite sides of the metal layer, each protective layer is provided with a base layer part made of any one of nylon, polyethylene terephthalate, oriented polypropylene, biaxially oriented polypropylene or cast polypropylene and a first plating part formed on one side of the base layer part far away from the metal layer and made of any one of aluminum oxide, magnesium oxide, silicon nitride or silicon oxynitride; and
and the outer film coats the main film and is used for image-text printing, and the material is selected from polyethylene terephthalate or nylon.
6. The paint coating packaging bag according to claim 5, wherein: the inner film is made of linear low-density polyethylene.
7. The paint coating packaging bag according to claim 5, wherein: the metal layer is made of aluminum metal.
8. The paint coating packaging bag according to claim 5, wherein: each protective layer also has a second plating part which is formed between the base part and the metal layer and has the same material as the first plating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353356.9A CN113562318A (en) | 2020-04-29 | 2020-04-29 | Paint coating packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353356.9A CN113562318A (en) | 2020-04-29 | 2020-04-29 | Paint coating packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113562318A true CN113562318A (en) | 2021-10-29 |
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ID=78158288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010353356.9A Pending CN113562318A (en) | 2020-04-29 | 2020-04-29 | Paint coating packaging bag |
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| CN (1) | CN113562318A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621877A (en) * | 1985-06-27 | 1987-01-07 | Agency Of Ind Science & Technol | Method for plating molded body of polyethylene terephthalate with metal |
| DE19513223A1 (en) * | 1995-04-12 | 1996-10-17 | Matthias Hoffmeier | Container for viscous materials |
| TW490508B (en) * | 1998-12-04 | 2002-06-11 | Masco Corp | Article having multi-layer coating |
| CN101875420A (en) * | 2009-04-30 | 2010-11-03 | 翁文桂 | Isolation laminated packaging material |
| CN102261017A (en) * | 2011-06-10 | 2011-11-30 | 浙江中佳包装材料科技有限公司 | Manufacturing method of waterborne environmentally-friendly transparent laser transfer paper |
| CN204095243U (en) * | 2014-07-18 | 2015-01-14 | 上海飞凯光电材料股份有限公司 | A kind of packaging bag |
| CN110509642A (en) * | 2019-08-12 | 2019-11-29 | 广东新天丽控股有限公司 | A kind of double-colored aluminizer of gold and silver and its production method |
-
2020
- 2020-04-29 CN CN202010353356.9A patent/CN113562318A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621877A (en) * | 1985-06-27 | 1987-01-07 | Agency Of Ind Science & Technol | Method for plating molded body of polyethylene terephthalate with metal |
| DE19513223A1 (en) * | 1995-04-12 | 1996-10-17 | Matthias Hoffmeier | Container for viscous materials |
| TW490508B (en) * | 1998-12-04 | 2002-06-11 | Masco Corp | Article having multi-layer coating |
| CN101875420A (en) * | 2009-04-30 | 2010-11-03 | 翁文桂 | Isolation laminated packaging material |
| CN102261017A (en) * | 2011-06-10 | 2011-11-30 | 浙江中佳包装材料科技有限公司 | Manufacturing method of waterborne environmentally-friendly transparent laser transfer paper |
| CN204095243U (en) * | 2014-07-18 | 2015-01-14 | 上海飞凯光电材料股份有限公司 | A kind of packaging bag |
| CN110509642A (en) * | 2019-08-12 | 2019-11-29 | 广东新天丽控股有限公司 | A kind of double-colored aluminizer of gold and silver and its production method |
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