CN218577213U - Edible oil packaging sheet with high-barrier oxygen absorption function - Google Patents
Edible oil packaging sheet with high-barrier oxygen absorption function Download PDFInfo
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- CN218577213U CN218577213U CN202122042582.8U CN202122042582U CN218577213U CN 218577213 U CN218577213 U CN 218577213U CN 202122042582 U CN202122042582 U CN 202122042582U CN 218577213 U CN218577213 U CN 218577213U
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Abstract
The invention provides an edible oil packaging sheet with a high-barrier oxygen absorption function, which comprises: the heat sealing layer is a first thermoplastic resin material layer; the printing layer is arranged on the outer surface of the heat sealing layer and is a second thermoplastic resin material layer; the blocking layer is arranged between the heat sealing layer and the printing layer and is an ethylene-vinyl alcohol copolymer material layer; the oxygen uptake nature shaping layer, the oxygen uptake nature shaping become set up with the printing layer with between the barrier layer, the oxygen uptake nature shaping layer is the plastic uptake material layer. The edible oil packaging sheet provided by the embodiment of the invention is simple in structure, can actively block the external oxygen function, so that the packaging sheet has good blocking property, the oxidation reaction rate of the edible oil is slowed down, and meanwhile, the oxygen-absorbing forming layer provides excellent mechanical strength, so that the packaging sheet is beneficial to blow molding of a bubble cap sheet and is convenient for packaging of small-capacity products.
Description
Technical Field
The utility model relates to the technical field of packaging, in particular to edible oil packaging sheet with high resistant separates oxygen uptake function.
Background
The existing edible oil package is a large-capacity PET bottle or a glass bottle, and the material is inconvenient to be made into a small-capacity package, so that the edible oil package is not convenient for people to carry about and cannot meet the requirement of disposable use. In addition, the existing edible oil package increases the storage time of the edible oil, the rancidity speed of the edible oil is high, the storage is not facilitated, and the product quality is influenced. Therefore, there is a high necessity to solve such problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an edible oil packaging sheet with high barrier oxygen inhalation function, so as to solve the above technical problems.
In order to solve the technical problem, the utility model provides an edible oil packaging sheet with high resistant separates oxygen uptake function.
According to the utility model discloses edible oil packing sheet with high resistant separates oxygen uptake function, include:
the heat-sealing layer is a first thermoplastic resin material layer;
the printing layer is arranged on the outer surface of the heat sealing layer and is a second thermoplastic resin material layer;
the blocking layer is arranged between the heat sealing layer and the printing layer and is an ethylene-vinyl alcohol copolymer material layer;
the oxygen uptake nature shaping layer, the oxygen uptake nature shaping become set up with the printing layer with between the barrier layer, the oxygen uptake nature shaping layer is the plastic uptake material layer.
According to an embodiment of the present invention, the first thermoplastic resin material layer is a polyethylene film or a polypropylene film.
According to an embodiment of the invention, the thickness of the first layer of thermoplastic resin material is between 10-30 μm.
According to an embodiment of the present invention, the second thermoplastic resin material layer is a poly-p-phthalic plastic film or a polypropylene film.
According to an embodiment of the invention, the thickness of the second layer of thermoplastic resin material is between 15-80 μm.
According to an embodiment of the invention, the thickness of the barrier layer is between 5 and 50 μm.
According to one embodiment of the invention, the thickness of the oxygen-absorbing shaping layer is between 100 and 200 μm.
According to one embodiment of the present invention, the layer of blister material is formed by adding 0.5% -1% by weight of a cyclized styrene-butadiene copolymer to the poly (p-phenylene terephthalamide) plastic.
According to an embodiment of the present invention, the edible oil packaging sheet is integrally thermoformed.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
according to the utility model discloses edible oil packing sheet with high resistant separates oxygen uptake function, simple structure can the external oxygen function of initiative separation to make the packing sheet have good separation nature, slow down edible oil oxidation reaction rate, oxygen uptake nature shaping layer provides excellent mechanical strength simultaneously, does benefit to bubble cap sheet blow molding, the small capacity product packaging of being convenient for.
Drawings
Fig. 1 is an exploded view of an edible oil packaging sheet with a high barrier oxygen inhalation function according to an embodiment of the present invention;
FIG. 2 is a graph comparing the acid value of edible oils stored in several packaging materials as the storage time increases;
figure 3 is a graph comparing the peroxide value of edible oils stored in several packaging materials with increasing storage time.
Reference numerals:
a heat seal layer 10; a barrier layer 20; an oxygen-absorbing molding layer 30; and a printed layer 40.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
The following specifically describes the edible oil packaging sheet with high barrier oxygen inhalation function according to the embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the edible oil packaging sheet with high barrier and oxygen absorption functions according to the embodiment of the present invention includes a heat sealing layer 10, a printing layer 40, a barrier layer 20, and an oxygen absorption molding layer 30.
Specifically, the heat seal layer 10 is a first thermoplastic resin material layer, the printing layer 40 is disposed on the outer surface of the heat seal layer 10, and the printing layer 40 is a second thermoplastic resin material layer. The barrier layer 20 is arranged between the heat sealing layer 10 and the printing layer 40, the barrier layer 20 is an ethylene-vinyl alcohol copolymer material layer, the oxygen absorption molding layer 30 is arranged between the printing layer 40 and the barrier layer 20, and the oxygen absorption molding layer 30 is a plastic absorption material layer.
That is, the barrier layer 20 and the oxygen-absorbing molded layer 30 are provided between the heat seal layer 10 and the printing layer 40. The heat-sealing layer 10 is a film made of a thermoplastic resin material, and may be a Polyethylene (PE) film or a polypropylene (CPP) film, for example. The material has good crystallinity, good cold resistance, good friction performance, high chemical stability, extremely small water absorption, outstanding electric insulation performance and good radiation resistance, and can be used as a thermoplastic packaging material. The printing layer 40 may also be a film made of a thermoplastic resin material, and preferably, a poly-p-phenylene terephtalate (PET) film or a polypropylene (CPP) film is used. The PET plastic has the advantages of excellent abrasion and friction resistance, dimensional stability, electrical insulation, high strength, good transparency, no toxicity, seepage resistance, light weight, high production efficiency and the like, can be used as a printing layer 40 of a package, and can effectively protect the packaged product. The barrier layer 20 is a film made of ethylene-vinyl alcohol copolymer material, has a good barrier effect, can effectively barrier a packaged product from the outside as a packaging material, and can prolong the shelf life of food when being used for food packaging. The oxygen-absorbing forming layer 30 is a plastic-absorbing material layer amorphous polyethylene terephthalate film, and can actively obstruct the external oxygen as a packaging material, so that the blister packaging sheet has good obstruction property, and can slow down the oxidation reaction rate of edible oil as the packaging sheet of edible oil, and meanwhile, the oxygen-absorbing forming layer 30 provides excellent mechanical strength and is beneficial to the blow molding of the blister sheet.
According to one embodiment of the present application, the thickness of the first layer of thermoplastic resin material is between 10-30 μm. The thickness can keep the toughness of the packing material, and has better protection effect on the packed product.
In one embodiment of the invention, the thickness of the second layer of thermoplastic resin material is between 15-80 μm. The thickness can not only keep the strength of the packaging sheet material, but also avoid the increase of the packaging cost due to over thickness.
In one embodiment of the present invention, the barrier layer 20 has a thickness of 5-50 μm. The thickness has better barrier effect.
In one embodiment of the present invention, the oxygen-absorbing molding layer 30 has a thickness of 100 to 200 μm. The thickness can keep the thickness of the whole sheet within a reasonable thickness range, and can effectively block external oxygen, so that packaged products can be protected from being oxidized, and the quality guarantee period of the products is prolonged. Particularly for oil products, the requirement on oxygen is high, the acid value and peroxide value of the oil can be reduced by effectively blocking the oxygen, the oil is protected better, and the quality guarantee period of the oil is prolonged.
In one embodiment of the present invention, the blister material layer is formed by adding 0.5-1% by mass of a cyclized styrene-butadiene copolymer to the poly (p-phenylene terephthaiic acid) plastic. The preparation method of the cyclized styrene-butadiene copolymer comprises the steps of taking a styrene-butadiene copolymer (SBS) solution as a raw material, adding a certain amount of benzophenone and a cobalt acetate solution into a diphenyl methane, stirring to uniformly mix, putting the mixture into a grinding tool, drying in a vacuum drying oven, and drying to obtain the oxygen-absorbing cyclized SBS blend.
In one embodiment of the present invention, the edible oil packaging sheet is integrally thermoformed by blow molding.
In a word, according to the utility model discloses edible oil packing sheet with high resistant separates oxygen uptake function, simple structure can the external oxygen function of initiative separation to make the packing sheet have good separation nature, slow down edible oil oxidation reaction rate, oxygen uptake nature shaping layer 30 provides excellent mechanical strength simultaneously, does benefit to bubble cap sheet blow molding, the small capacity product packaging of being convenient for.
The following examples verify the performance indexes of the edible oil packaging sheet with high barrier oxygen absorption function.
Example 1
A packaging sheet 1 comprising a CPP film of 10 μm, a polyethylene terephthalate plastic film PET (printed layer) of 80 μm, an EVOH film (barrier layer) of an ethylene-vinyl alcohol copolymer material of 50 μm, and an amorphous polyethylene terephthalate film (oxygen-absorbing molding layer) of 100 μm was used.
Example 2
A packaging sheet 2 composed of a CPP film of 30 μm, a poly (terephthalic acid) plastic film (print layer) of 15 μm, an ethylene-vinyl alcohol copolymer film (barrier layer) of 5 μm and an amorphous poly (ethylene terephthalate) film (oxygen-absorbing molding layer) of 200 μm was used.
The packaging sheet 1 and the packaging sheet 2 in examples 1 and 2 were compared with an existing packaging sheet (manufacturing company: wuxi Jiangyin Flexible packaging Material Co., ltd.), as shown in Table 1.
TABLE 1 comparison of existing sheets with sheets of the present application
As can be seen from table 1, the oxygen barrier and moisture barrier properties of the two sheets of the embodiments of the present invention are significantly higher than those of the existing packaging sheets. Prove that the packaging sheet material of the embodiment of the utility model has better separation performance.
The method for detecting the oxygen permeability barrier adopts a pressure difference method in GB/T1038-2000 test method for gas permeability of plastic films and sheets, and the method for detecting the moisture permeability barrier adopts a cup method in GB/T1037-1988 test method for water vapor permeability of plastic films and sheets.
In addition, the edible oil was packaged and stored in the sheet of the example of the present application, the two conventional sheets, and a glass bottle, and the acid value and peroxide value of the edible oil were measured at regular intervals, and the measurement results are shown in fig. 2 and fig. 3.
Fig. 2 shows a comparative graph of the acid value of edible oil stored by several packaging materials with the increase of storage time, and it can be seen from fig. 2 that the edible oil stored by the packaging sheet of the present application has a slowly-increasing acid value with the increase of storage time, which is almost equivalent to the effect of glass bottles. The acid value of the edible oil stored in the prior sheet material is increased rapidly along with the storage time. Can show that the packaging sheet material of the embodiment of the utility model has better separation performance and can effectively separate external oxygen.
Fig. 3 shows a comparative graph of peroxide values of edible oils stored in several packaging materials with increasing storage time, and it can be seen from fig. 3 that the peroxide values of the edible oils stored in the packaging sheet of the present application are nearly parallel after slowly increasing with increasing storage time, while the peroxide values of the edible oils stored in the two conventional sheets increase faster with increasing storage time. Can show the utility model discloses packaging sheet has better separation nature, can the external oxygen of effectual separation.
From this, according to the utility model discloses edible oil packing sheet with high resistant separates oxygen uptake function, simple structure can the external oxygen function of initiative separation to make the packing sheet have good separation nature, slow down edible oil oxidation reaction rate, oxygen uptake nature shaping layer provides excellent mechanical strength simultaneously, does benefit to bubble cap sheet blow molding, the small capacity product packaging of being convenient for.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An edible oil packaging sheet with high barrier oxygen uptake function, which is characterized by comprising:
the heat-sealing layer is a first thermoplastic resin material layer;
the printing layer is arranged on the outer surface of the heat sealing layer and is a second thermoplastic resin material layer;
the barrier layer is arranged between the heat sealing layer and the printing layer;
the oxygen uptake nature shaping layer, the oxygen uptake nature shaping become set up with the printing layer with between the barrier layer, the oxygen uptake nature shaping layer is the plastic uptake material layer.
2. The edible oil packaging sheet according to claim 1, wherein the first thermoplastic resin material layer is a polyethylene film or a polypropylene film.
3. The edible oil packaging sheet according to claim 2, wherein the thickness of the first thermoplastic resin material layer is between 10-30 μm.
4. The edible oil packaging sheet according to any one of claims 1 to 3, wherein the second thermoplastic resin material layer is a thin film of a parylene plastic or a thin film of polypropylene.
5. The edible oil packaging sheet according to claim 4, wherein the thickness of the second thermoplastic resin material layer is between 15-80 μm.
6. The edible oil packaging sheet according to claim 1, wherein the barrier layer has a thickness of 5-50 μm.
7. The edible oil packaging sheet according to claim 6, wherein the oxygen-absorbing shaping layer has a thickness of between 100-200 μm.
8. The edible oil packaging sheet according to claim 1, wherein the edible oil packaging sheet is thermoformed in one piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122042582.8U CN218577213U (en) | 2021-08-27 | 2021-08-27 | Edible oil packaging sheet with high-barrier oxygen absorption function |
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| CN202122042582.8U CN218577213U (en) | 2021-08-27 | 2021-08-27 | Edible oil packaging sheet with high-barrier oxygen absorption function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650387A (en) * | 2021-08-27 | 2021-11-16 | 佳格食品(中国)有限公司 | Edible oil packaging sheet with high-barrier oxygen absorption function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650387A (en) * | 2021-08-27 | 2021-11-16 | 佳格食品(中国)有限公司 | Edible oil packaging sheet with high-barrier oxygen absorption function |
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