WO2019022269A1 - Food wrapper using antioxidant - Google Patents

Food wrapper using antioxidant Download PDF

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Publication number
WO2019022269A1
WO2019022269A1 PCT/KR2017/008027 KR2017008027W WO2019022269A1 WO 2019022269 A1 WO2019022269 A1 WO 2019022269A1 KR 2017008027 W KR2017008027 W KR 2017008027W WO 2019022269 A1 WO2019022269 A1 WO 2019022269A1
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WO
WIPO (PCT)
Prior art keywords
antioxidant
layer
metal
wrapping paper
alloy
Prior art date
Application number
PCT/KR2017/008027
Other languages
French (fr)
Korean (ko)
Inventor
유하경
오재영
이승욱
이민혁
Original Assignee
소프트팩 주식회사
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Publication of WO2019022269A1 publication Critical patent/WO2019022269A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/74—Oxygen absorber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Definitions

  • the present invention relates to a packaging sheet for food, and more particularly, to a packaging sheet for foodstuff which is improved in freshness and preservability of food by using an antioxidant material, and is specialized in uni-material, environment-friendly, barrier property and fatty acid of coffee.
  • Food packaging is the storage and storage of food, and freshness and preservability are very important.
  • the conventional wrapping paper is a multi-layered film made of a different material including a metal such as aluminum, as shown in Korean Registered Utility Model No. 20-0251193 and Domestic Registered Utility Model No. 20-0222620, thereby improving the barrier property of oxygen and moisture.
  • Korean Registered Utility Model No. 20-0251193 and Domestic Registered Utility Model No. 20-0222620 thereby improving the barrier property of oxygen and moisture.
  • Much efforts have been made to impart antioxidant functions in addition to blocking properties.
  • Korean Patent Laid-Open No. 2000-0024191 has developed a low-density polyethylene film containing fine powder of jade, but objective quality characteristics and leading elongation effect have not been clarified.
  • the conventional paper packaging material has been coated with a coating solution containing loess powder, but it did not show the antioxidative effect of fruits and foods.
  • packaging paper in which antioxidants are dispersed or coated is insufficient to enhance the freshness of the food. Accordingly, there is a demand for a packaging sheet for food which can effectively exhibit the antioxidative function together with the barrier properties.
  • a problem to be solved by the present invention is to provide a packaging sheet for foods using an antioxidant substance so as to be able to effectively exhibit antioxidative function together with blocking ability.
  • One of the packaging sheets for foods using antioxidants for solving the problems of the present invention is a packaging sheet for foods using antioxidants in which a substrate layer, an antioxidant blocking layer and an oxygen absorbing layer are sequentially laminated, Alcohol, and antioxidant, and the coral absorbent layer is a layer in which an oxygen absorbing material is mixed with an unleaded polypropylene.
  • the antioxidant may be at least one selected from the group consisting of psittaci, diatomaceous earth, polyphenol, flavonoid, carotenoid, catechin, vitamin C and tocopherol.
  • the antioxidant may be a hydrogen producing material.
  • the hydrogen-producing material comprises an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, a stabilized alkaline earth metal ) And the stabilized alkaline earth metal alloy.
  • the hydrogen-producing material may be selected from the group consisting of boron-group metals and alloys of the boron-group metals, hydrides of metals or metal alloys, borohydrides of metals or metal alloys, aluminohydrides of metals or metal alloys ), And tourmaline minerals.
  • both sides of the oxygen absorbing layer may be attached with a non-drawn PP layer. And a fine pore penetrating the oxygen absorbing layer to expose a part of the antioxidant blocking layer.
  • the cross-sectional shape of the micro pores may be circular, polygonal or a combination thereof.
  • the space formed by the micropores may be a truncated cone, a truncated pyramid, or a combination thereof.
  • Another object of the present invention is to provide a wrapper for foods using antioxidants in which a substrate layer, a barrier layer, an oxygen absorbing layer and an antioxidant layer are sequentially laminated,
  • the oxygen absorbing layer is a layer in which an oxygen absorbing material is mixed with an unleaded polypropylene
  • the antioxidant layer includes an antioxidant substance.
  • the antioxidant layer containing the antioxidant can be used to effectively exhibit the antioxidant function.
  • antioxidants can significantly improve the degradation and browning of food, leading to deterioration and corruption caused by bacterial growth.
  • the antioxidant is preferably a hydrogen-producing material.
  • FIG. 1 is a cross-sectional view showing a first wrapping paper 100 for food using an antioxidant according to the present invention.
  • FIG. 2 is a sectional view showing a second wrapping paper 200 for food using the antioxidant according to the present invention.
  • FIG. 3 is a cross-sectional view showing a third wrapping paper 300 for food using the antioxidant according to the present invention
  • An embodiment of the present invention proposes a packaging sheet for foodstuffs so that antioxidant functions can be efficiently demonstrated by using an antioxidant layer containing antioxidants.
  • an antioxidant layer containing antioxidants To this end, the structure of the wrapping paper containing the antioxidant substance will be described in detail, and the antioxidative effect of the wrapping paper will be described in detail by the antioxidant substance.
  • the antioxidant is for inhibiting the oxidation of foods, and the antioxidant function is imparted to the wrapper according to the embodiment of the present invention.
  • FIG. 1 is a sectional view showing a first packaging paper 100 for food using an antioxidant according to an embodiment of the present invention.
  • the first wrapping paper 100 comprises a substrate layer 10, an antioxidant barrier layer 12, and an oxygen absorbing layer 16 which are sequentially laminated.
  • the base layer 10 is formed by copolymerizing propylene as a main component and various monomers.
  • Preferred monomers are ethylene, 1-butene, 1-pentene, 1-hexene, Octene, 1-nonene, 1-decene and 1-dodecene.
  • the polypropylene copolymer preferably contains 1 to 10 parts by weight of the monomer relative to 100 parts by weight of the whole copolymer.
  • the polypropylene resin preferably has a weight average molecular weight of 100,000 to 400,000.
  • the weight average molecular weight of the polypropylene resin is less than 80,000, the mechanical properties and impact resistance of the food packaging material may be insufficient. If the polypropylene resin has a weight average molecular weight of more than 500,000, the flexibility of the polypropylene resin is greatly reduced.
  • the stretched polypropylene When stretched, the stretched polypropylene is arranged in a direction in which the molecular arrangement is stretched and the strength is increased in the stretched direction. Particularly, the biaxially stretched polypropylene has a similar strength in the transverse and longitudinal directions, a strong mechanical strength, good printability and processability.
  • the stretched polypropylene is excellent in transparency, moisture resistance, and oil resistance.
  • the core layer includes a modified polyolefin and a thermoplastic elastomer containing a random functional group in a random polypropylene.
  • the random polypropylene (PP) refers to a random copolymer or a terpolymer, and a random terpolymer is preferable.
  • the random copolymer is a random arrangement of two monomers by copolymerizing propylene with ethylene.
  • a random terpolymer is a kind of random copolymer made by polymerizing three monomers of ethylene, propylene and butene-1.
  • the random polypropylene (PP) may be a polypropylene type resin having a melt index (g / 10 min) of 0.3 to 30 and a melting point of 145 ⁇ ⁇ or higher, preferably 150 ⁇ ⁇ or higher.
  • a randomly copolymerized resin containing about 0 to 4% by weight of -olefin in propylene is used.
  • the modified polyolefin has a polar group
  • an acid-modified polyolefin having excellent adhesive sealing property may also be used.
  • the acid-modified polyolefin is a polyolefin graft-modified with an acid such as maleic anhydride.
  • an acid-modified polyolefin can graft copolymerize a polyolefin resin with an unsaturated carboxylic acid such as acrylic acid or maleic anhydride, and the modified polyolefin resin having a carboxyl group uses an ethylene-based ionomer resin having a carboxyl group in the molecule.
  • the ethylene-based ionomer resin is a resin that is pseudo-crosslinked with a metal ion such as a zinc ion, a potassium ion, a sodium ion, a magnesium ion, or a lithium ion between molecules of an ethylene copolymer such as an ethylene methacrylic acid copolymer or an ethylene acrylic acid copolymer Lt; / RTI >
  • the modified polyolefin is added and added in an amount of 5 wt% to 50 wt% with respect to the entire core layer.
  • the thermoplastic elastomer is a molecular structure of a typical triblock copolymer, and other multi-type block copolymers, graft copolymers chemically crosslinked by mixing resin and rubber, and ion crosslinked copolymers.
  • the thermoplastic elastomer exhibits a hard, dispersed two-phase structure in which three-dimensional mesh knots are formed on a homogeneous rubber. Depending on the type of hard phase, it is classified into a polystyrene type, a polyolefin type, a polyvinyl chloride type, a polyurethane type, a polyester type, and a polyamide type.
  • the first and second non-tear-resistant PP layers 14 and 18 are made and cast by a T-die method.
  • the antioxidant barrier layer 12 is a layer in which water-soluble polyvinyl alcohol (PVA) is mixed with an antioxidant.
  • PVA polyvinyl alcohol
  • Polyvinyl alcohol (PVA) is made from a white solid hydrolyzed at 30 to 50 ° C by adding sodium hydroxide to polyvinyl acetate as a methyl alcohol solution.
  • Aqueous polyvinyl alcohol (PVA) has the property of blocking gas, and specifically, the high density of polyvinyl alcohol prevents gas permeation.
  • Polyvinyl alcohol (PVA) has a limit blocking thickness (ts) at which the barrier property is not increased even if the thickness is increased by increasing the application amount once. Polyvinyl alcohol (PVA) can be applied even when applied several times.
  • the threshold cut-off thickness ts refers to the thickness of the coating film without cracks, the limit of the barrier property, and the thickness at which the barrier property is not increased even though it is thicker.
  • the antioxidant may be present in various materials.
  • sugars diatomaceous earth, polyphenols, flavonoids, carotenoids, catechins, vitamin C, tocopherols, iron oxides and the like.
  • the above-mentioned schistite is a natural-nanostructured composite material containing 30 to 40% by weight of carbon and 70 to 60% by weight of silicate as a carbon-containing rock, and may contain aluminum, magnesium, potassium, sulfur, calcium, It is a substance containing other trace elements.
  • the spun-grit carbon material is composed of globules 2 to 30 nanometers in size, forming nanostructures, and has natural fullerene and high-order fullerene particle structures.
  • the catechin is green tea extract.
  • the tocopherols include synthetic tocopherol (dL-tocopherol acetate), TBHQ (tertiary butyl hydroquinone) or natural tocopherol.
  • the diatomaceous earth transforms the ambient moisture into moisture having high antioxidant activity, thereby substantially eliminating oxygen which is the cause of the shrinkage.
  • a hydrogen producing material is presented as a sulfating material according to an embodiment of the present invention.
  • the hydrogen-producing material is a substance that spontaneously generates hydrogen upon contact with moisture.
  • Hydrogen is a sulfated material that is fast to diffuse and has no harmful effects from use. The fast diffusion is because hydrogen is the smallest molecule.
  • Hydrogen is a hundred times smaller in molecular size as compared to the above-mentioned sugi ghit, diatomaceous earth, polyphenol, flavonoid, carotenoid, vitamin C and tocopherol.
  • hydrogen selectively neutralizes only oxygen, which is a factor such as rancidity.
  • Some hydrogen-producing materials according to the present invention are highly reactive and can generate hydrogen even in contact with moisture in the atmosphere.
  • the substrate layer 10 and polyvinyl alcohol (PVA) serve to block contact with moisture in the atmosphere.
  • the hydrogen-producing material comprises an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, a stabilized alkaline earth metal
  • the stabilized alkali metal or the stabilized alkaline earth metal may be any one of a layer material such as graphite, a porous material such as silica gel or zeolite, A reaction of any one of artificially formed nanostructures such as nanotubes, porous Si, porous SiC, porous Si 3 N 4 , aerogels, and xerogels with the alkali metal or the alkaline earth metal to control the hydrogen generation reaction And enhance stability.
  • Other hydrogen-producing materials include boron-group metals and alloys of the boron-group metals, hydrides of metals or metal alloys, borohydrides of metals or metal alloys, aluminohydrides of metals or metal alloys aluminohydride, and tourmaline mineral.
  • the boron group metal may be boron (B), aluminum (Al), or gallium (Ga).
  • the catalyst or the additive may promote the generation of hydrogen by at least one of a transition metal, a carbon material, and an organic acid.
  • Chemical Formula 5 below shows that water is combined with NaBH 4 , which is one of the boron hydrides of the metal alloy, to generate hydrogen.
  • the hydrogen-producing material according to the embodiment of the present invention generates hydrogen, thereby leading to significant degradation of the acidity and browning of the food and deterioration of the yield and corruption caused by bacterial growth. As a result, it is possible to prevent a loss due to corruption or the like in the course of distribution of food or the like.
  • borohydride of boron-group metal or metal or metal alloy, borohydride of metal or metal alloy, aluminohydride of metal or metal alloy reacts with moisture to produce a sufficient amount of hydrogen There is no case.
  • a catalyst or an additive may be used together to produce a sufficient amount of hydrogen.
  • the oxygen absorbing layer 16 is formed by mixing an oxygen absorbing material with an unleaded polypropylene. At this time, at least one of the first and second non-toughened PP layers 14 and 18 is attached to both sides of the oxygen absorbing layer 16 so that the oxygen contained in the contents of the first wrapping paper 100 is excessively Thereby preventing contact. In some cases, only the second non-stretched PP layer 18 may be present without the first non-stretched PP layer 14.
  • the oxygen absorbing material may be any one of an inorganic metal and a saccharide which is an organic system or a combination thereof, and the inorganic material may be iron powder, iron oxide, calcium carbonate, etc.
  • the organic material may include ascorbic acid, sodium aditonate, catechol).
  • the oxygen absorbing material is a mechanism that absorbs only oxygen gas (O 2 ), absorbs oxygen gas and carbon dioxide gas (CO 2 ), absorbs oxygen gas and generates carbon dioxide gas or absorbs oxygen gas to generate alcohol mechanism can act as either mechanism.
  • FIG. 2 is a sectional view showing a second wrapping paper 200 for food using an antioxidant according to an embodiment of the present invention.
  • the second wrapping paper 200 is the same as the first wrapping paper 100 except that the micropores 20 are present. Accordingly, detailed description of the same reference numerals will be omitted.
  • the second wrapping paper 200 has a plurality of micropores 20 penetrating the oxygen absorbing layer 16 to expose a part of the antioxidant barrier layer 12.
  • the sectional shape of the fine perforations 20 may be circular, polygonal or a combination thereof.
  • the diameter D of the fine perforations 20 may be constant or varied along the depth direction. Accordingly, the space formed by the micropores 20 can be a truncated cone, a truncated pyramid, or a combination thereof.
  • the number of the micro pores 20 can be adjusted according to the thickness of the second wrapping paper 200 of the present invention, the kind of contents, and the like.
  • FIG. 3 is a cross-sectional view showing a third wrapping paper 300 for food using an antioxidant according to an embodiment of the present invention.
  • the third wrapping paper 300 is the same as the first wrapping paper 100 except that the micropores 20 are present, except that the barrier layer 22 and the antioxidant layer 24 are different. Accordingly, detailed description of the same reference numerals will be omitted.
  • the third wrapping paper 300 is prepared by replacing the antioxidant barrier layer 12 of the first wrapping paper 100 with the barrier layer 22 and forming the antioxidant layer 24 May be formed.
  • the barrier layer 22 is made of the aqueous polyvinyl alcohol (PVA) described in the first wrapping paper 100 only.
  • the water-based polyvinyl alcohol (PVA) has a limited cut-off thickness ts at which the barrier property is not increased even if the thickness is increased by increasing the application amount once. Polyvinyl alcohol (PVA) can be applied even when applied several times. Furthermore, if the amount or thickness of the polyvinyl alcohol (PVA) is increased, cracks will occur in the coating film when polyvinyl alcohol (PVA) is dried, resulting in a serious damage to the barrier properties.
  • the threshold cut-off thickness ts refers to the thickness of the coating film without cracks, the limit of the barrier property, and the thickness at which the barrier property is not increased even though it is thicker.
  • the antioxidant layer 24 is a layer in which antioxidants are mixed with a binder.
  • the antioxidant material is as shown in the first wrapping paper 100.
  • the binder is preferably a non-aqueous, harmless binder that is not soluble in water.
  • the binder may be a polymer resin, either thermo plasticity or thermo setting properties.
  • the thermo plasticity resin include acrylic acid resin, ethyl cellulose, polyester, polysulfone, phenoxy resin, polyimide, and the like .
  • thermosetting resin examples include amino resins such as urea-formaldehyde resin, melamine resin and guanamine resin, bisphenol A-type, bisphenol- Phenol resin such as F type, phenol novolak type, alicyclic type epoxy resin or resol type, Novolak type, or silicone epoxy epoxy, silicone polyester, and the like.
  • amino resins such as urea-formaldehyde resin, melamine resin and guanamine resin
  • bisphenol A-type bisphenol- Phenol resin such as F type, phenol novolak type, alicyclic type epoxy resin or resol type, Novolak type, or silicone epoxy epoxy, silicone polyester, and the like.
  • at least one selected from the thermoplastic resin or the thermosetting resin can be applied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

Disclosed is a food wrapper using an antioxidant to efficiently demonstrate both a barrier property and an antioxidant function. The wrapper is formed by sequentially laminating a substrate layer, an antioxidation barrier layer including polyvinyl alcohol and an antioxidant mixed therein, and an oxygen absorption layer obtained by mixing an unoriented polypropylene with an oxygen absorption material or sequentially laminating an oriented PP layer, a barrier layer made of polyvinyl alcohol, an oxygen absorption layer, and an antioxidation layer coated with an antioxidant.

Description

항산화물질을 이용한 식품용 포장지Food packaging paper using antioxidants
본 발명은 식품용 포장지에 관한 것으로, 보다 상세하게는 항산화물질을 이용하여 식품의 신선도 및 보존성을 높여서, 유니소재, 친환경, 차단성, 커피의 지방산 등에 특화시킨 식품용 포장지에 관한 것이다.The present invention relates to a packaging sheet for food, and more particularly, to a packaging sheet for foodstuff which is improved in freshness and preservability of food by using an antioxidant material, and is specialized in uni-material, environment-friendly, barrier property and fatty acid of coffee.
식품 포장은 식품을 저장하고 보관하는 것으로, 신선도 및 보존성이 매우 중요하다. 식품의 신선도 및 보존성을 유지하기 위해서는 산소 및 수분의 차단성이 우수해야 한다. 종래의 포장지는 국내등록실용신안 제20-0251193호, 국내등록실용신안 제20-0222620호와 같이, 알루미늄과 같은 금속재질을 포함한 이종소재로 구성된 다층필름으로 산소 및 수분의 차단성을 높였다. 식품의 신선도 및 보존성을 높이기 위하여, 차단성과 더불어 항산화 기능을 부여하기 위한 많은 노력이 진행되고 있다. Food packaging is the storage and storage of food, and freshness and preservability are very important. In order to maintain the freshness and preservability of the food, the barrier property of oxygen and moisture must be excellent. The conventional wrapping paper is a multi-layered film made of a different material including a metal such as aluminum, as shown in Korean Registered Utility Model No. 20-0251193 and Domestic Registered Utility Model No. 20-0222620, thereby improving the barrier property of oxygen and moisture. In order to improve the freshness and preservability of foods, much efforts have been made to impart antioxidant functions in addition to blocking properties.
그런데, 식품의 산화를 억제하기 위한 항산화 기능이 부여된 포장재는 적절한 항산화물질을 선택하고 획득하기 어렵고, 소요되는 비용도 크다. 국내공개특허 제2000-0024191호는 옥의 미세분말을 함유한 저밀도 폴리에틸렌 필름이 개발되었으나, 객관적인 품질 특성 및 선도 연장 효과가 명확하지 않았다. 또한, 종래의 종이 포장재는 황토 분말이 포함된 코팅액으로 코팅하는 등의 많은 시도들이 있었으나, 과일, 식품 등의 항산화 효과를 뚜렷하게 나타내지 않았다. 이와 같이, 항산화물질이 분산되거나 코팅된 포장지는 식품의 신선도를 증진하기에는 부족한 점이 있다. 이에 따라, 차단성과 함께 항산화 기능을 효율적으로 발휘할 수 있는 식품용 포장지가 요구되고 있다. However, packing materials having an antioxidant function for suppressing oxidation of foods are difficult to select and obtain proper antioxidants, and the cost is high. Korean Patent Laid-Open No. 2000-0024191 has developed a low-density polyethylene film containing fine powder of jade, but objective quality characteristics and leading elongation effect have not been clarified. In addition, the conventional paper packaging material has been coated with a coating solution containing loess powder, but it did not show the antioxidative effect of fruits and foods. As such, packaging paper in which antioxidants are dispersed or coated is insufficient to enhance the freshness of the food. Accordingly, there is a demand for a packaging sheet for food which can effectively exhibit the antioxidative function together with the barrier properties.
본 발명이 해결하고자 하는 과제는 차단성과 함께 항산화 기능을 효율적으로 발휘할 수 있도록 항산화물질을 이용한 식품용 포장지를 제공하는 데 있다.A problem to be solved by the present invention is to provide a packaging sheet for foods using an antioxidant substance so as to be able to effectively exhibit antioxidative function together with blocking ability.
본 발명의 과제를 해결하기 위한 항산화물질을 이용한 식품용 포장지의 하나는 기재층, 항산화차단층 및 산소흡수층이 순차적으로 적층되어 이루어진 항산화물질을 이용한 식품용 포장지에 있어서, 상기 항산화차단층은 폴리비닐알콜 및 항산화물질이 혼합된 층이고, 상기 산호흡수층은 무연신 폴리프로필렌에 산소흡수물질이 혼합된 층이다. One of the packaging sheets for foods using antioxidants for solving the problems of the present invention is a packaging sheet for foods using antioxidants in which a substrate layer, an antioxidant blocking layer and an oxygen absorbing layer are sequentially laminated, Alcohol, and antioxidant, and the coral absorbent layer is a layer in which an oxygen absorbing material is mixed with an unleaded polypropylene.
본 발명의 포장지에 있어서, 상기 항산화물질은 슝기트, 규조토, 폴리페놀, 후라보노이드, 카로티노이드, 카테친, 비타민C 및 토코페롤 중에서 선택된 적어도 어느 하나일 수 있다. 상기 항산화물질은 수소생성물질일 수 있다. 상기 수소생성물질은 알칼리금속 및 상기 알칼리금속의 합금, 알칼리토금속 및 상기 알칼리토금속의 합금, 안정화된 알칼리금속(stabilized alkali metal) 및 상기 안정화된 알칼리금속의 합금, 안정화된 알칼리토금속(stabilized alkali earth metal) 및 상기 안정화된 알칼리토금속의 합금 중에서 선택된 어느 하나일 수 있다. 상기 수소생성물질은 붕소족금속 및 상기 붕소족금속의 합금, 금속 또는 금속합금의 하이드라이드(hydrid), 금속 또는 금속합금의 보로하이드라이드(borohydride), 금속 또는 금속합금의 알루미노하이드라이드(aluminohydride), 토르마린 광물 중에서 선택된 어느 하나일 수 있다. In the wrapping paper of the present invention, the antioxidant may be at least one selected from the group consisting of psittaci, diatomaceous earth, polyphenol, flavonoid, carotenoid, catechin, vitamin C and tocopherol. The antioxidant may be a hydrogen producing material. Wherein the hydrogen-producing material comprises an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, a stabilized alkaline earth metal ) And the stabilized alkaline earth metal alloy. The hydrogen-producing material may be selected from the group consisting of boron-group metals and alloys of the boron-group metals, hydrides of metals or metal alloys, borohydrides of metals or metal alloys, aluminohydrides of metals or metal alloys ), And tourmaline minerals.
본 발명의 바람직한 포장지에 있어서, 상기 산소흡수층의 양측은 무연신 PP층이 부착될 수 있다. 상기 산소흡수층을 관통하여 상기 항산화차단층의 일부를 노출시키는 미세 타공을 포함할 수 있다. 상기 미세 타공의 단면 형상은 원형, 다각형 또는 이들의 조합일 수 있다. 상기 미세 타공이 만드는 공간은 원뿔대, 각뿔대 또는 이들의 조합일 수 있다.In the preferred wrapping paper of the present invention, both sides of the oxygen absorbing layer may be attached with a non-drawn PP layer. And a fine pore penetrating the oxygen absorbing layer to expose a part of the antioxidant blocking layer. The cross-sectional shape of the micro pores may be circular, polygonal or a combination thereof. The space formed by the micropores may be a truncated cone, a truncated pyramid, or a combination thereof.
본 발명의 과제를 해결하기 위한 항산화물질을 이용한 식품용 포장지의 다른 하나는 기재층, 차단층, 산소흡수층 및 항산화층이 순차적으로 적층되어 이루어진 항산화물질을 이용한 식품용 포장지에 있어서, 상기 차단층은 폴리비닐알콜으로 이루어진 층이고, 상기 산소흡수층은 무연신 폴리프로필렌에 산소흡수물질이 혼합된 층이며, 상기 항산화층은 항산화물질이 포함한다. Another object of the present invention is to provide a wrapper for foods using antioxidants in which a substrate layer, a barrier layer, an oxygen absorbing layer and an antioxidant layer are sequentially laminated, Wherein the oxygen absorbing layer is a layer in which an oxygen absorbing material is mixed with an unleaded polypropylene, and the antioxidant layer includes an antioxidant substance.
본 발명의 항산화물질을 이용한 식품용 포장지에 의하면, 항산화물질이 포함된 항산화층을 활용함으로써, 차단성과 함께 항산화 기능을 효율적으로 발휘할 수 있다. 또한, 항산화물질은 식품의 산패변질과 갈변 및 세균증식에 의한 선도저하와 부패현상을 현저히 개선할 수 있다. 특히, 항산화물질은 수소생성물질이 바람직하다.According to the packaging sheet for food using the antioxidant of the present invention, the antioxidant layer containing the antioxidant can be used to effectively exhibit the antioxidant function. In addition, antioxidants can significantly improve the degradation and browning of food, leading to deterioration and corruption caused by bacterial growth. Particularly, the antioxidant is preferably a hydrogen-producing material.
도 1은 본 발명에 의한 항산화물질을 이용한 식품용 제1 포장지(100)를 나타내는 단면도이다. 1 is a cross-sectional view showing a first wrapping paper 100 for food using an antioxidant according to the present invention.
도 2는 본 발명에 의한 항산화물질을 이용한 식품용 제2 포장지(200)를 나타내는 단면도이다. 2 is a sectional view showing a second wrapping paper 200 for food using the antioxidant according to the present invention.
도 3은 본 발명에 의한 항산화물질을 이용한 식품용 제3 포장지(300)를 나타내는 단면도이다3 is a cross-sectional view showing a third wrapping paper 300 for food using the antioxidant according to the present invention
이하 첨부된 도면을 참조하면서 본 발명의 바람직한 실시예를 상세히 설명한다. 다음에서 설명되는 실시예는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상술되는 실시예에 한정되는 것은 아니다. 본 발명의 실시예는 당 분야에서 통상의 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위하여 제공되는 것이다. 한편, 도면들에 있어서, 막(층, 패턴) 및 영역들의 두께는 명확성을 기하기 위하여 과장될 수 있다. 또한, 막(층, 패턴)이 다른 막(층, 패턴)의 '상', '상부', '하부', '일면'에 있다고 언급되는 경우에, 그것은 다른 막(층, 패턴)에 직접 형성될 수 있거나 또는 그들 사이에 다른 막(층, 패턴)이 개재될 수도 있다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention. On the other hand, in the figures, the thicknesses of the film (layer, pattern) and regions may be exaggerated for clarity. Further, when it is mentioned that the film (layer, pattern) is in the "upper", "upper", "lower", "one side" of another film (layer, pattern) Or a different film (layer, pattern) may be interposed therebetween.
본 발명의 실시예는 항산화물질이 포함된 항산화층을 활용함으로써, 차단성과 함께 항산화 기능을 효율적으로 발휘할 수 있도록 식품용 포장지를 제시한다. 이를 위해, 항산화물질이 포함된 포장지의 구조에 대하여 자세하게 알아보고, 상기 항산화물질에 의해 포장지의 항산화 효과를 구체적으로 설명하기로 한다. 항산화란 식품의 산화를 억제하기 위한 것으로, 본 발명의 실시예에 의한 포장지에는 상기 항산화 기능이 부여된다.An embodiment of the present invention proposes a packaging sheet for foodstuffs so that antioxidant functions can be efficiently demonstrated by using an antioxidant layer containing antioxidants. To this end, the structure of the wrapping paper containing the antioxidant substance will be described in detail, and the antioxidative effect of the wrapping paper will be described in detail by the antioxidant substance. The antioxidant is for inhibiting the oxidation of foods, and the antioxidant function is imparted to the wrapper according to the embodiment of the present invention.
도 1은 본 발명의 실시예에 의한 항산화물질을 이용한 식품용 제1 포장지(100)를 나타내는 단면도이다. 1 is a sectional view showing a first packaging paper 100 for food using an antioxidant according to an embodiment of the present invention.
도 1에 의하면, 제1 포장지(100)는 기재층(10), 항산화차단층(12) 및 산소흡수층(16)이 순차적으로 적층되어 이루어진다. 기재층(10)은 프로필렌을 주성분으로 하고 여러 단량체를 공중합한 형태로, 바람직한 단량체는 에틸렌, 1-부텐, 1-펜텐, 1-헥센, 4-메틸-1-펜텐, 1-헵텐, 1-옥텐, 1-노넨, 1-데센 및 1-도데센에서 선택되는 어느 하나 또는 둘 이상일 수 있다. 상기 폴리프로필렌 공중합체는 전체 공중합체 100 중량부에 대하여 상기 단량체를 1 내지 10 중량부 함유하는 것이 바람직하다. 상기 폴리프로필렌 수지는 중량평균분자량이 100,000 내지 400,000인 것이 바람직하다. 상기 폴리프로필렌 수지의 중량평균분자량이 80,000 미만인 경우 식품포장재로서의 기계적 물성 및 내충격성이 충분하지 못할 수 있으며, 500,000 초과인 경우 유연성이 크게 떨어져서 베이스는 연신 폴리프로필렌(OPP)에 한다.1, the first wrapping paper 100 comprises a substrate layer 10, an antioxidant barrier layer 12, and an oxygen absorbing layer 16 which are sequentially laminated. The base layer 10 is formed by copolymerizing propylene as a main component and various monomers. Preferred monomers are ethylene, 1-butene, 1-pentene, 1-hexene, Octene, 1-nonene, 1-decene and 1-dodecene. The polypropylene copolymer preferably contains 1 to 10 parts by weight of the monomer relative to 100 parts by weight of the whole copolymer. The polypropylene resin preferably has a weight average molecular weight of 100,000 to 400,000. If the weight average molecular weight of the polypropylene resin is less than 80,000, the mechanical properties and impact resistance of the food packaging material may be insufficient. If the polypropylene resin has a weight average molecular weight of more than 500,000, the flexibility of the polypropylene resin is greatly reduced.
연신 폴리프로필렌은 연신되면 분자배열이 잡아당긴 방향으로 배열하여 연신된 방향으로 강도가 증가한다. 특히, 이축 연신한 폴리프로필렌은 가로 및 세로의 강도가 비슷하며 기계적 강도가 강하고, 인쇄 적성, 가공적성 등이 좋음. 연신 폴리프로필렌은 투명성, 방습성, 내유성이 우수하다. 코아층은 랜덤(random) 폴리프로필렌에 극성의 관능기를 함유하는 변성 폴리올레핀 및 열가소성 엘라스토머(elastomer)를 포함한다. 여기서, 랜덤 폴리프로필렌(PP)은 랜덤 코폴리머(copolymer) 또는 랜덤 터폴리머(terpolymer)를 말하며, 랜덤 터폴리머가 바람직하다. 랜덤 코폴리머는 프로필렌과 에틸렌을 공중합시켜 두 단량체를 무질서하게 배열한 것이다. 랜덤 터폴리머는 랜덤 코폴리머의 일종으로 에틸렌, 프로필렌 및 부텐-1의 세 가지 단량체를 중합하여 만든다. 랜덤 폴리프로필렌(PP)은 용융지수(g/10min)는 0.3~30, 융점이 145℃이상, 바람직하게는 150℃이상의 폴리프로필렌계 수지이면 좋다. 이러한 수지로서는 프로필렌에 α-올레핀이 0~4중량%정도, 랜덤 공중합된 수지를 사용한다.When stretched, the stretched polypropylene is arranged in a direction in which the molecular arrangement is stretched and the strength is increased in the stretched direction. Particularly, the biaxially stretched polypropylene has a similar strength in the transverse and longitudinal directions, a strong mechanical strength, good printability and processability. The stretched polypropylene is excellent in transparency, moisture resistance, and oil resistance. The core layer includes a modified polyolefin and a thermoplastic elastomer containing a random functional group in a random polypropylene. Here, the random polypropylene (PP) refers to a random copolymer or a terpolymer, and a random terpolymer is preferable. The random copolymer is a random arrangement of two monomers by copolymerizing propylene with ethylene. A random terpolymer is a kind of random copolymer made by polymerizing three monomers of ethylene, propylene and butene-1. The random polypropylene (PP) may be a polypropylene type resin having a melt index (g / 10 min) of 0.3 to 30 and a melting point of 145 占 폚 or higher, preferably 150 占 폚 or higher. As such a resin, a randomly copolymerized resin containing about 0 to 4% by weight of -olefin in propylene is used.
변성 폴리올레핀은 극성기를 가지기 때문에 접착성 실링성이 뛰어난 산변성 폴리올레핀을 사용하기도 한다. 산변성 폴리올레핀이란 무수 말레인산 등의 산을 그래프트 변성한 폴리올레핀이다. 산변성 폴리올레핀은 예를 들면, 폴리올레핀 수지에 아크릴산, 무수 말레산 등의 불포화 카르복실산을 그래프트 공중합시킬 수 있어 카르복실기를 갖는 변성 폴리올레핀 수지는 분자 내에 카르복실기를 에틸렌계 이오노머 수지를 사용한다. 에틸렌계 아이오노머 수지란, 에틸렌 메타크릴산 공중합체 혹은 에틸렌 아크릴산 공중합체 등의 에틸렌 공중합체의 분자 간을 아연 이온, 칼륨 이온, 나트륨 이온, 마그네슘 이온, 리튬 이온 등의 금속 이온으로 유사 가교한 수지를 사용한다. 상기 변성 폴리올레핀은 코아층 전체에 대하여, 5중량% 내지 50중량%만큼 가감 첨가한다.Since the modified polyolefin has a polar group, an acid-modified polyolefin having excellent adhesive sealing property may also be used. The acid-modified polyolefin is a polyolefin graft-modified with an acid such as maleic anhydride. For example, an acid-modified polyolefin can graft copolymerize a polyolefin resin with an unsaturated carboxylic acid such as acrylic acid or maleic anhydride, and the modified polyolefin resin having a carboxyl group uses an ethylene-based ionomer resin having a carboxyl group in the molecule. The ethylene-based ionomer resin is a resin that is pseudo-crosslinked with a metal ion such as a zinc ion, a potassium ion, a sodium ion, a magnesium ion, or a lithium ion between molecules of an ethylene copolymer such as an ethylene methacrylic acid copolymer or an ethylene acrylic acid copolymer Lt; / RTI > The modified polyolefin is added and added in an amount of 5 wt% to 50 wt% with respect to the entire core layer.
열가소성 엘라스토머는 전형적인 트리블록 공중합체의 분자구조이며, 그 외 멀티형 블록 공중합체, 수지와 고무를 혼합하여 화학 가교한 그래프트 공중합체, 이온 가교 공중합체가 있음. 열가소성 엘라스토머는 균질한 고무 상에 3차원 그물코 매듭이 생기는 경질상의 분산된 2상 구조를 보인다. 경질상의 종류에 따라서는 폴리스티렌계, 폴리올레핀계, 폴리염화비닐계, 폴리우레탄계, 폴리에스테르계, 폴리아미드계로 분류된다. 또한, 고무 탄성을 보이도록 하기 위하여, 각각의 경질 연쇄 성질에 따라서 동결상, 결정상, 결정상과의 수소결합, 이온 가교 등으로 나누어진다. 이때, 중간층의 주성분인 호모 폴리프로필렌과의 상용성을 고려하여 폴리올레핀계 엘라스토머를 사용하였다. 제1 및 제2 무연신 PP층(14, 18)는 T-Die 공법으로 제조되어 캐스팅된 것이다.The thermoplastic elastomer is a molecular structure of a typical triblock copolymer, and other multi-type block copolymers, graft copolymers chemically crosslinked by mixing resin and rubber, and ion crosslinked copolymers. The thermoplastic elastomer exhibits a hard, dispersed two-phase structure in which three-dimensional mesh knots are formed on a homogeneous rubber. Depending on the type of hard phase, it is classified into a polystyrene type, a polyolefin type, a polyvinyl chloride type, a polyurethane type, a polyester type, and a polyamide type. In order to show rubber elasticity, it is divided into a freeze phase, a crystalline phase, a hydrogen bond with the crystal phase, and ion bridging depending on the respective hard chain properties. At this time, the polyolefin elastomer was used in consideration of the compatibility with the homopolypropylene which is the main component of the intermediate layer. The first and second non-tear- resistant PP layers 14 and 18 are made and cast by a T-die method.
항산화차단층(12)은 수성 폴리비닐알콜(PVA)에 항산화물질이 혼합된 층이다. 폴리비닐알콜(PVA)은 폴리초산비닐을 메틸알코올 용액으로 수산화나트륨을 가해, 30~50℃로 가수분해된 백색의 고체로부터 만들어진다. 수성 폴리비닐알콜(PVA)은 기체를 차단하는 특성을 가지며, 구체적으로 폴리비닐알콜의 높은 치밀성이 기체 투과를 막는다. 폴리비닐알콜(PVA)은 1회 도포량을 높여 두께를 크게 한다고 해도 차단성이 높아지지 않는 한계 차단두께(ts)를 가진다. 폴리비닐알콜(PVA)은 여러 번 도포해도 마찬가지이다. 더군다나, 폴리비닐알콜(PVA)의 도포량이나 두께가 늘어나면, 폴리비닐알콜(PVA)이 건조될 때, 도막에 균열이 생겨 차단성에 치명적인 손상을 가져온다. 한계 차단두께(ts)는 도막에 균열이 생기지 않고, 차단성의 한계, 더 이상 두꺼워져도 차단성의 증가하지 않는 두께를 말한다. The antioxidant barrier layer 12 is a layer in which water-soluble polyvinyl alcohol (PVA) is mixed with an antioxidant. Polyvinyl alcohol (PVA) is made from a white solid hydrolyzed at 30 to 50 ° C by adding sodium hydroxide to polyvinyl acetate as a methyl alcohol solution. Aqueous polyvinyl alcohol (PVA) has the property of blocking gas, and specifically, the high density of polyvinyl alcohol prevents gas permeation. Polyvinyl alcohol (PVA) has a limit blocking thickness (ts) at which the barrier property is not increased even if the thickness is increased by increasing the application amount once. Polyvinyl alcohol (PVA) can be applied even when applied several times. Furthermore, if the amount or thickness of the polyvinyl alcohol (PVA) is increased, cracks will occur in the coating film when polyvinyl alcohol (PVA) is dried, resulting in a serious damage to the barrier properties. The threshold cut-off thickness ts refers to the thickness of the coating film without cracks, the limit of the barrier property, and the thickness at which the barrier property is not increased even though it is thicker.
상기 항산화물질은 다양한 물질이 존재한다. 예를 들어, 슝기트, 규조토, 폴리페놀, 후라보노이드, 카로티노이드, 카테친, 비타민C, 토코페롤, 철산화물 등이 있다. 상기 슝기트는 탄소를 함유한 암석으로서 탄소가 30~40중량%, 규산염이 70~60중량% 함유된 천연 나노구조 복합물이며, 탄소 및 규산염 이외에 알루미늄, 마그네슘, 칼륨, 황, 칼슘, 인, 또는 기타 다른 미량원소들이 포함된 물질이다. 슝기트는 슝기트 탄소 물질이 2~30 나노미터 크기의 작은 알갱이(globule)로 이루어져 있으며, 나노구조를 형성하고 있으며 천연 플러렌(fullerene) 및 고차원의 플러렌 입자구조를 하고 있다. 상기 카테친은 녹차 추출물이다. 상기 토코페롤은 합성 토코페롤(dL-토코페롤 아세테이트), TBHQ(터셔리부틸히드로퀴논) 또는 천연 토코페롤이 있다. 상기 규조토는 주위 습기를 높은 항산화 작용을 가지는 습기로 바꾸어 산폐의 원인인 산소를 거의 제거한다. The antioxidant may be present in various materials. For example, there are sugars, diatomaceous earth, polyphenols, flavonoids, carotenoids, catechins, vitamin C, tocopherols, iron oxides and the like. The above-mentioned schistite is a natural-nanostructured composite material containing 30 to 40% by weight of carbon and 70 to 60% by weight of silicate as a carbon-containing rock, and may contain aluminum, magnesium, potassium, sulfur, calcium, It is a substance containing other trace elements. In the case of Schunggit, the spun-grit carbon material is composed of globules 2 to 30 nanometers in size, forming nanostructures, and has natural fullerene and high-order fullerene particle structures. The catechin is green tea extract. The tocopherols include synthetic tocopherol (dL-tocopherol acetate), TBHQ (tertiary butyl hydroquinone) or natural tocopherol. The diatomaceous earth transforms the ambient moisture into moisture having high antioxidant activity, thereby substantially eliminating oxygen which is the cause of the shrinkage.
본 발명의 실시예에 의한 황산화물질로서 수소생성물질을 제시한다. 상기 수소생성물질은 수분과 접촉할 때, 자발적으로 수소를 생성하는 물질이다. 수소는 확산이 빠르고 사용에 의한 유해작용이 없는 황산화물질이다. 확산이 빠른 이유는 수소는 크기가 가장 작은 분자이기 때문이다. 수소는 앞에서 제시한 슝기트, 규조토, 폴리페놀, 후라보노이드, 카로티노이드, 비타민C, 토코페롤 등에 비해 분자크기가 수백배가 작다. 또한, 수소는 산패 등의 요인인 산소만을 선별적으로 중화한다. 본 발명에 따른 일부 수소생성물질은 반응성이 아주 높아서, 대기 중의 수분과 접촉하여도 수소를 생성할 수 있다. 기재층(10) 및 폴리비닐알콜(PVA)는 대기 중의 수분과 접촉을 차단하는 역할을 한다. A hydrogen producing material is presented as a sulfating material according to an embodiment of the present invention. The hydrogen-producing material is a substance that spontaneously generates hydrogen upon contact with moisture. Hydrogen is a sulfated material that is fast to diffuse and has no harmful effects from use. The fast diffusion is because hydrogen is the smallest molecule. Hydrogen is a hundred times smaller in molecular size as compared to the above-mentioned sugi ghit, diatomaceous earth, polyphenol, flavonoid, carotenoid, vitamin C and tocopherol. In addition, hydrogen selectively neutralizes only oxygen, which is a factor such as rancidity. Some hydrogen-producing materials according to the present invention are highly reactive and can generate hydrogen even in contact with moisture in the atmosphere. The substrate layer 10 and polyvinyl alcohol (PVA) serve to block contact with moisture in the atmosphere.
상기 수소생성물질은 알칼리금속 및 상기 알칼리금속의 합금, 알칼리토금속 및 상기 알칼리토금속의 합금, 안정화된 알칼리금속(stabilized alkali metal) 및 상기 안정화된 알칼리금속의 합금, 안정화된 알칼리토금속(stabilized alkali earth metal) 및 상기 안정화된 알칼리토금속의 합금 중의 어느 하나이되, 상기 안정화된 알칼리금속 또는 상기 안정화된 알칼리토금속은 그라파이트(graphite)와 같은 레이어물질, 실리카겔(silica gel)이나 제오라이트(zeolite) 같은 다공성 물질, 카본나노튜브, 다공성 Si, 다공성 SiC, 다공성 Si3N4, 에어로겔(aerogel), 제로겔(xerogel) 같은 인공적으로 만들어진 나노구조체 중의 어느 하나와 상기 알칼리금속 또는 상기 알칼리토금속과 반응시켜 수소발생 반응을 제어하고 안정성을 높인 물질일 수 있다. Wherein the hydrogen-producing material comprises an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, a stabilized alkaline earth metal And the stabilized alkali metal or the stabilized alkaline earth metal may be any one of a layer material such as graphite, a porous material such as silica gel or zeolite, A reaction of any one of artificially formed nanostructures such as nanotubes, porous Si, porous SiC, porous Si 3 N 4 , aerogels, and xerogels with the alkali metal or the alkaline earth metal to control the hydrogen generation reaction And enhance stability.
다른 상기 수소생성물질은 붕소족금속 및 상기 붕소족금속의 합금, 금속 또는 금속합금의 하이드라이드(hydrid), 금속 또는 금속합금의 보로하이드라이드(borohydride), 금속 또는 금속합금의 알루미노하이드라이드(aluminohydride), 토르마린 광물 중의 어느 하나일 수 있는데, 상기 붕소족금속은 붕소(B), 알루미늄(Al), 또는 갈륨(Ga)일 수 있다. 그리고 상기 촉매제 또는 첨가제는 전이금속(transition metal), 카본물질 및 유기산 중 적어도 어느 하나로써, 수소의 발생을 촉진시킬 수 있다. Other hydrogen-producing materials include boron-group metals and alloys of the boron-group metals, hydrides of metals or metal alloys, borohydrides of metals or metal alloys, aluminohydrides of metals or metal alloys aluminohydride, and tourmaline mineral. The boron group metal may be boron (B), aluminum (Al), or gallium (Ga). The catalyst or the additive may promote the generation of hydrogen by at least one of a transition metal, a carbon material, and an organic acid.
아래의 화학식 1은 알칼리금속과 수분이 결합하여 수소를 생성하는 것을 보여주고 있다. The following formula 1 shows that alkali metal and water are combined to produce hydrogen.
[화학식 1] [Chemical Formula 1]
2Na + 2H2O -> 2NaOH + H2 2Na + 2H 2 O -> 2NaOH + H 2
2Li + 2H2O -> 2LiOH + H2 2 Li + 2H 2 O - > 2 LiOH + H 2
2K + 2H2O -> 2KOH + H2 2K + 2H 2 O - > 2KOH + H 2
아래의 화학식 2는 알칼리토금속과 수분이 결합하여 수소를 생성하는 것을 보여주고 있다. The following formula (2) shows that alkaline earth metal and water are combined to produce hydrogen.
[화학식 2](2)
Be + 2H2O -> Be(OH)2 + H2 Be + 2H 2 O -> Be (OH) 2 + H 2
Mg + 2H2O -> Mg(OH)2 + H2 Mg + 2H 2 O - > Mg (OH) 2 + H 2
Ca + 2H2O -> Ca(OH)2 + H2 Ca + 2H 2 O - > Ca (OH) 2 + H 2
아래의 화학식 3은 안정화된 알칼리금속인 NaSi와 물이 결합하여 수소를 생성하는 것을 보여주고 있다.The following formula (3) shows that hydrogen is produced by combining water with stabilized alkali metal NaSi.
[화학식 3](3)
2NaSi + 5H2O -> Na2Si2O5 + 5H2 2NaSi + 5H 2 O -> Na 2 Si 2 O 5 + 5H 2
아래의 화학식 4는 붕소족 물질 중의 하나인 알루미늄과 물이 결합하여 수소를 생성하는 것을 보여주고 있다.The following formula 4 shows that aluminum, which is one of the boron-based materials, and water combine to form hydrogen.
[화학식 4][Chemical Formula 4]
2Al + 6H2O -> 2Al(OH)3 + 3H2 2Al + 6H 2 O -> 2Al (OH) 3 + 3H 2
아래의 화학식 5는 금속합금의 보론하이드라이드 중의 하나인 NaBH4와 물이 결합하여 수소를 생성하는 것을 보여 주고 있다.Chemical Formula 5 below shows that water is combined with NaBH 4 , which is one of the boron hydrides of the metal alloy, to generate hydrogen.
[화학식 5][Chemical Formula 5]
NaBH4 + 2H2O -> NaBO2 + 4H2 NaBH 4 + 2H 2 O -> NaBO 2 + 4H 2
화학식1 내지 5에서 제시한 사례와 같이, 본 발명의 실시예에 의한 수소생성물질은 수소를 발생하여, 식품의 산패변질과 갈변 및 세균증식에 의한 선도저하와 부패현상을 현저히 개선할 수 있다. 이로 인해, 식품 등이 유통되는 과정에서의 부패 등으로 인한 손실을 방지할 수 있다. 그런데 상기한 붕소족 금속이나 금속 또는 금속합금의 하이드라이드, 금속 또는 금속합금의 보로하이드라이드, 금속 또는 금속합금의 알루미노하이드라이드는 수분과 접촉할 때, 반응하여 충분한 양의 수소를 생성할 수 없는 경우가 있다. 이때 충분한 양의 수소를 생성하기 위하여 촉매제 또는 첨가제를 같이 사용할 수 있다. As in the examples shown in the formulas (1) to (5), the hydrogen-producing material according to the embodiment of the present invention generates hydrogen, thereby leading to significant degradation of the acidity and browning of the food and deterioration of the yield and corruption caused by bacterial growth. As a result, it is possible to prevent a loss due to corruption or the like in the course of distribution of food or the like. However, borohydride of boron-group metal or metal or metal alloy, borohydride of metal or metal alloy, aluminohydride of metal or metal alloy reacts with moisture to produce a sufficient amount of hydrogen There is no case. At this time, a catalyst or an additive may be used together to produce a sufficient amount of hydrogen.
산소흡수층(16)은 무연신 폴리프로필렌에 산소흡수물질이 혼합된 것이다. 이때, 제1 및 제2 무연신 PP층(14, 18) 중 적어도 하나는 산소흡수층(16)의 양측에 부착되어 제1 포장지(100)의 내용물에 포함된 산소가 상기 산소흡수물질과 과도하게 접촉되는 것을 방지한다. 경우에 따라, 제1 무연신 PP층(14)이 없이, 제2 무연신 PP층(18)만 존재할 수도 있다. The oxygen absorbing layer 16 is formed by mixing an oxygen absorbing material with an unleaded polypropylene. At this time, at least one of the first and second non-toughened PP layers 14 and 18 is attached to both sides of the oxygen absorbing layer 16 so that the oxygen contained in the contents of the first wrapping paper 100 is excessively Thereby preventing contact. In some cases, only the second non-stretched PP layer 18 may be present without the first non-stretched PP layer 14.
상기 산소흡수물질은 무기계인 금속과 유기계인 당류 중의 어느 하나 또는 그들의 복합물이며, 무기계는 철분, 산화철, 탄산칼슘 등이 있으며, 유기계는 아스코르빈산(ascorbic acid), 아디티온산 나트륨, 카테콜(catechol)이 있다. 상기 산소흡수물질은 산소 가스(O2)만을 흡수하거나, 산소 가스와 탄산 가스(CO2)를 흡수하거나, 산소 가스를 흡수하고 탄산 가스를 발생하거나 또는 산소 가스를 흡수하고 알코올을 발생하는 기구(mechanism) 중의 어느 하나의 기구로 작용할 수 있다. The oxygen absorbing material may be any one of an inorganic metal and a saccharide which is an organic system or a combination thereof, and the inorganic material may be iron powder, iron oxide, calcium carbonate, etc. The organic material may include ascorbic acid, sodium aditonate, catechol). The oxygen absorbing material is a mechanism that absorbs only oxygen gas (O 2 ), absorbs oxygen gas and carbon dioxide gas (CO 2 ), absorbs oxygen gas and generates carbon dioxide gas or absorbs oxygen gas to generate alcohol mechanism can act as either mechanism.
도 2는 본 발명의 실시예에 의한 항산화물질을 이용한 식품용 제2 포장지(200)를 나타내는 단면도이다. 이때, 제2 포장지(200)는 미세 타공(20)이 존재하는 것을 제외하고 제1 포장지(100)와 동일하다. 이에 따라, 동일한 참조부호에 대한 상세한 설명은 생략하기로 한다.2 is a sectional view showing a second wrapping paper 200 for food using an antioxidant according to an embodiment of the present invention. At this time, the second wrapping paper 200 is the same as the first wrapping paper 100 except that the micropores 20 are present. Accordingly, detailed description of the same reference numerals will be omitted.
도 2에 의하면, 제2 포장지(200)는 산소흡수층(16)을 관통하여 항산화차단층(12)의 일부를 노출시킨 복수개의 미세 타공(20)이 존재한다. 항산화차단층(12)의 일부가 노출되면, 산소흡수층(16)의 관통된 측면도 노출된다. 미세 타공(20)의 단면 형상은 원형, 다각형 또는 이들이 조합될 수 있다. 미세 타공(20)의 직경(D)는 깊이 방향에 따라 일정할 수도 있고 달라질 수도 있다. 이에 따라, 미세 타공(20)이 만드는 공간은 원뿔대, 각뿔대 또는 이들의 조합일 수 있다. 미세 타공(20)의 개수는 본 발명의 제2 포장지(200)의 두께, 내용물의 종류 등에 따라 조절될 수 있다.2, the second wrapping paper 200 has a plurality of micropores 20 penetrating the oxygen absorbing layer 16 to expose a part of the antioxidant barrier layer 12. When a part of the antioxidant blocking layer 12 is exposed, the penetrating side surface of the oxygen absorbing layer 16 is also exposed. The sectional shape of the fine perforations 20 may be circular, polygonal or a combination thereof. The diameter D of the fine perforations 20 may be constant or varied along the depth direction. Accordingly, the space formed by the micropores 20 can be a truncated cone, a truncated pyramid, or a combination thereof. The number of the micro pores 20 can be adjusted according to the thickness of the second wrapping paper 200 of the present invention, the kind of contents, and the like.
도 3은 본 발명의 실시예에 의한 항산화물질을 이용한 식품용 제3 포장지(300)를 나타내는 단면도이다. 이때, 제3 포장지(300)는 차단층(22) 및 항산화층(24)이 달라진 점을 제외하고 미세 타공(20)이 존재하는 것을 제외하고 제1 포장지(100)와 동일하다. 이에 따라, 동일한 참조부호에 대한 상세한 설명은 생략하기로 한다.3 is a cross-sectional view showing a third wrapping paper 300 for food using an antioxidant according to an embodiment of the present invention. The third wrapping paper 300 is the same as the first wrapping paper 100 except that the micropores 20 are present, except that the barrier layer 22 and the antioxidant layer 24 are different. Accordingly, detailed description of the same reference numerals will be omitted.
도 3에 의하면, 제3 포장지(300)는 제1 포장지(100)의 항산화차단층(12)을 차단층(22)으로 대체하고, 제2 무연신 PP층(18) 상에 항산화층(24)이 형성될 수 있다. 차단층(22)은 제1 포장지(100)에서 설명한 수성 폴리비닐알콜(PVA)로만 이루어진다. 수성 폴리비닐알콜(PVA)은 1회 도포량을 높여 두께를 크게 한다고 해도 차단성이 높아지지 않는 한계 차단두께(ts)를 가진다. 폴리비닐알콜(PVA)은 여러 번 도포해도 마찬가지이다. 더군다나, 폴리비닐알콜(PVA)의 도포량이나 두께가 늘어나면, 폴리비닐알콜(PVA)이 건조될 때, 도막에 균열이 생겨 차단성에 치명적인 손상을 가져온다. 한계 차단두께(ts)는 도막에 균열이 생기지 않고, 차단성의 한계, 더 이상 두꺼워져도 차단성의 증가하지 않는 두께를 말한다. 3, the third wrapping paper 300 is prepared by replacing the antioxidant barrier layer 12 of the first wrapping paper 100 with the barrier layer 22 and forming the antioxidant layer 24 May be formed. The barrier layer 22 is made of the aqueous polyvinyl alcohol (PVA) described in the first wrapping paper 100 only. The water-based polyvinyl alcohol (PVA) has a limited cut-off thickness ts at which the barrier property is not increased even if the thickness is increased by increasing the application amount once. Polyvinyl alcohol (PVA) can be applied even when applied several times. Furthermore, if the amount or thickness of the polyvinyl alcohol (PVA) is increased, cracks will occur in the coating film when polyvinyl alcohol (PVA) is dried, resulting in a serious damage to the barrier properties. The threshold cut-off thickness ts refers to the thickness of the coating film without cracks, the limit of the barrier property, and the thickness at which the barrier property is not increased even though it is thicker.
항산화층(24)은 항산화물질이 결합제가 혼합되어 코팅된 층이다. 상기 항산화물질은 제1 포장지(100)에서 제시한 바와 같다. 상기 결합제는 물에 용해되지 않는 비수계(non-aqueous)이면서 인체에 무해한 결합제가 바람직하다. 예를 들어, 결합제는 고분자 수지로써, 열가소성(thermo plasticity) 또는 열경화성(thermo setting property) 모두 가능하다. 열가소성(thermo plasticity) 수지로서는 아크릴 수지(acrylic acid resin), 에틸셀룰로스(ethyl cellulose), 폴리에스터(polyester), 폴리술폰(polysulfone), 페녹시 수지(phenoxy resin), 폴리이미드(polyimide) 등이 있다. The antioxidant layer 24 is a layer in which antioxidants are mixed with a binder. The antioxidant material is as shown in the first wrapping paper 100. The binder is preferably a non-aqueous, harmless binder that is not soluble in water. For example, the binder may be a polymer resin, either thermo plasticity or thermo setting properties. Examples of the thermo plasticity resin include acrylic acid resin, ethyl cellulose, polyester, polysulfone, phenoxy resin, polyimide, and the like .
열경화성 수지(thermosetting resin)로서는 요소 수지(urea-formaldehyde resin), 멜라민 수지(melamine resin), 구아나민 수지(guanamine resin)와 같은 아미노 수지(amino resin) 또는 비스페놀(bisphenol) A형, 비스페놀(bisphenol) F형, 페놀(phenol) 노볼락(Novolak)형, 지환식 등의 에폭시 수지(epoxide resin) 또는 레졸(resol)형, 노볼락(Novolak)형과 같은 페놀 수지(phenol resin) 또는 실리콘 에폭시(silicon epoxy), 실리콘 폴리에스터(silicon polyester)와 같은 실리콘 변성 수지 등이 바람직하다. 본 발명의 실시예는 상기 열가소성 수지 또는 열경화성 수지 중에 선택된 적어도 어느 하나를 적용할 수 있다.Examples of the thermosetting resin include amino resins such as urea-formaldehyde resin, melamine resin and guanamine resin, bisphenol A-type, bisphenol- Phenol resin such as F type, phenol novolak type, alicyclic type epoxy resin or resol type, Novolak type, or silicone epoxy epoxy, silicone polyester, and the like. In the embodiment of the present invention, at least one selected from the thermoplastic resin or the thermosetting resin can be applied.
이상, 본 발명은 바람직한 실시예를 들어 상세하게 설명하였으나, 본 발명은 상기 실시예에 한정되지 않으며, 본 발명의 기술적 사상의 범위 내에서 당 분야에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. It is possible.
*부호의 설명* Explanation of symbols
10; 기재층 12; 항산화차단층10; A base layer 12; Antioxidant blocking layer
14, 18; 무연신 PP층 16; 산소흡수층14, 18; Non-stretched PP layer 16; Oxygen absorbing layer
20; 미세타공 22; 차단층20; Fine punch 22; Barrier layer
24; 항산화층24; Antioxidant layer

Claims (15)

  1. 기재층, 항산화차단층 및 산소흡수층이 순차적으로 적층되어 이루어진 항산화물질을 이용한 식품용 포장지에 있어서,An antioxidant comprising a base layer, an antioxidant barrier layer and an oxygen absorbing layer laminated in this order,
    상기 항산화차단층은 폴리비닐알콜 및 항산화물질이 혼합된 층이고,Wherein the antioxidant barrier layer is a layer in which polyvinyl alcohol and an antioxidant substance are mixed,
    상기 산호흡수층은 무연신 폴리프로필렌에 산소흡수물질이 혼합된 층인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.Wherein the coral absorbent layer is a layer in which an oxygen absorptive material is mixed with an unoriented polypropylene.
  2. 제1항에 있어서, 상기 항산화물질은 슝기트, 규조토, 폴리페놀, 후라보노이드, 카로티노이드, 카테친, 비타민C, 토코페롤 및 철화합물 중에서 선택된 적어도 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.The food wrapping paper according to claim 1, wherein the antioxidant is at least one selected from the group consisting of psittaci, diatomaceous earth, polyphenol, flavonoid, carotenoid, catechin, vitamin C, tocopherol and iron compounds.
  3. 제1항에 있어서, 상기 항산화물질은 수소생성물질인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.The food wrapping paper according to claim 1, wherein the antioxidant is a hydrogen-producing material.
  4. 제3항에 있어서, 상기 수소생성물질은 알칼리금속 및 상기 알칼리금속의 합금, 알칼리토금속 및 상기 알칼리토금속의 합금, 안정화된 알칼리금속(stabilized alkali metal) 및 상기 안정화된 알칼리금속의 합금, 안정화된 알칼리토금속(stabilized alkali earth metal) 및 상기 안정화된 알칼리토금속의 합금 중에서 선택된 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.4. The method of claim 3 wherein the hydrogen-producing material is selected from the group consisting of an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, A stabilized alkaline earth metal, and a stabilized alkaline earth metal.
  5. 제3항에 있어서, 상기 수소생성물질은 붕소족금속 및 상기 붕소족금속의 합금, 금속 또는 금속합금의 하이드라이드(hydrid), 금속 또는 금속합금의 보로하이드라이드(borohydride), 금속 또는 금속합금의 알루미노하이드라이드(aluminohydride), 토르마린 광물 중에서 선택된 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.4. The method of claim 3 wherein the hydrogen-producing material is selected from the group consisting of a boride-group metal and an alloy of the boron-group metal, a hydride of a metal or a metal alloy, a borohydride of a metal or a metal alloy, Wherein the antioxidant is any one selected from aluminohydride and tourmaline mineral.
  6. 제1항에 있어서, 상기 산소흡수층의 양측은 무연신 PP층이 부착된 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.The food wrapping paper according to claim 1, wherein both sides of the oxygen absorbing layer are attached with a non-drawn PP layer.
  7. 제1항에 있어서, 상기 산소흡수층을 관통하여 상기 항산화차단층의 일부를 노출시키는 미세 타공을 포함하는 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.The food wrapping paper according to claim 1, further comprising fine pores penetrating the oxygen absorbing layer to expose a part of the antioxidant barrier layer.
  8. 제7항에 있어서, 상기 미세 타공의 단면 형상은 원형, 다각형 또는 이들의 조합인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.8. The food wrapping paper according to claim 7, wherein the cross-sectional shape of the micropores is circular, polygonal or a combination thereof.
  9. 제7항에 있어서, 상기 미세 타공이 만드는 공간은 원뿔대, 각뿔대 또는 이들의 조합인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.[8] The food wrapping paper according to claim 7, wherein the space formed by the micropores is a truncated cone, a truncated pyramid, or a combination thereof.
  10. 기재층, 차단층, 산소흡수층 및 항산화층이 순차적으로 적층되어 이루어진 항산화물질을 이용한 식품용 포장지에 있어서,An antioxidant comprising a substrate layer, a barrier layer, an oxygen absorbing layer and an antioxidant layer laminated in this order,
    상기 차단층은 폴리비닐알콜으로 이루어진 층이고,Wherein the barrier layer is a layer of polyvinyl alcohol,
    상기 산소흡수층은 무연신 폴리프로필렌에 산소흡수물질이 혼합된 층이며,The oxygen absorbing layer is a layer in which an oxygen absorbing material is mixed with an unleaded polypropylene,
    상기 항산화층은 항산화물질이 포함된 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.Wherein the antioxidant layer comprises an antioxidant.
  11. 제10항에 있어서, 상기 항산화물질은 슝기트, 규조토, 폴리페놀, 후라보노이드, 카로티노이드, 비타민C 및 토코페롤 중에서 선택된 적어도 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.[Claim 10] The food wrapping paper according to claim 10, wherein the antioxidant is at least one selected from the group consisting of shigid, diatomaceous earth, polyphenol, flavonoid, carotenoid, vitamin C and tocopherol.
  12. 제10항에 있어서, 상기 항산화물질은 수소생성물질인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.11. The food wrapping paper according to claim 10, wherein the antioxidant is a hydrogen-producing material.
  13. 제12항에 있어서, 상기 수소생성물질은 알칼리금속 및 상기 알칼리금속의 합금, 알칼리토금속 및 상기 알칼리토금속의 합금, 안정화된 알칼리금속(stabilized alkali metal) 및 상기 안정화된 알칼리금속의 합금, 안정화된 알칼리토금속(stabilized alkali earth metal) 및 상기 안정화된 알칼리토금속의 합금 중에서 선택된 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.13. The method of claim 12, wherein the hydrogen producing material is selected from the group consisting of an alkali metal and an alloy of the alkali metal, an alloy of an alkaline earth metal and the alkaline earth metal, a stabilized alkali metal and an alloy of the stabilized alkali metal, A stabilized alkaline earth metal, and a stabilized alkaline earth metal.
  14. 제12항에 있어서, 상기 수소생성물질은 붕소족금속 및 상기 붕소족금속의 합금, 금속 또는 금속합금의 하이드라이드(hydrid), 금속 또는 금속합금의 보로하이드라이드(borohydride), 금속 또는 금속합금의 알루미노하이드라이드(aluminohydride), 토르마린 광물 중에서 선택된 어느 하나인 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.13. The method of claim 12, wherein the hydrogen-producing material is selected from the group consisting of hydrides of boron-group metals and alloys of the boron-group metals, metals or metal alloys, borohydride of metals or metal alloys, Wherein the antioxidant is any one selected from aluminohydride and tourmaline mineral.
  15. 제10항에 있어서, 상기 산소흡수층의 양측은 무연신 PP층이 부착된 것을 특징으로 하는 항산화물질을 이용한 식품용 포장지.11. The food wrapping paper according to claim 10, wherein both sides of the oxygen absorbing layer are attached with an unoriented PP layer.
PCT/KR2017/008027 2017-07-24 2017-07-26 Food wrapper using antioxidant WO2019022269A1 (en)

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