WO2013036042A1 - 나노구조의 소수성 표면을 갖는 식품용기 및 그의 제조방법 - Google Patents
나노구조의 소수성 표면을 갖는 식품용기 및 그의 제조방법 Download PDFInfo
- Publication number
- WO2013036042A1 WO2013036042A1 PCT/KR2012/007177 KR2012007177W WO2013036042A1 WO 2013036042 A1 WO2013036042 A1 WO 2013036042A1 KR 2012007177 W KR2012007177 W KR 2012007177W WO 2013036042 A1 WO2013036042 A1 WO 2013036042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nanostructure
- food container
- thin film
- hydrophobic
- gas barrier
- Prior art date
Links
- 235000013305 food Nutrition 0.000 title claims abstract description 151
- 230000005661 hydrophobic surface Effects 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000010409 thin film Substances 0.000 claims abstract description 142
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 135
- 239000002086 nanomaterial Substances 0.000 claims abstract description 112
- 230000004888 barrier function Effects 0.000 claims abstract description 86
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000010408 film Substances 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 36
- 238000009501 film coating Methods 0.000 claims description 28
- 239000012528 membrane Substances 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 239000007888 film coating Substances 0.000 claims description 6
- 239000002070 nanowire Substances 0.000 claims description 6
- 239000002061 nanopillar Substances 0.000 claims description 5
- 239000002073 nanorod Substances 0.000 claims description 5
- 239000002096 quantum dot Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 85
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 238000009832 plasma treatment Methods 0.000 description 16
- 239000004743 Polypropylene Substances 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- -1 polypropylene Polymers 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 238000010924 continuous production Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 235000021419 vinegar Nutrition 0.000 description 5
- 239000000052 vinegar Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000010794 food waste Substances 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 3
- 235000013555 soy sauce Nutrition 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J47/00—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread
- A47J47/02—Closed containers for foodstuffs
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/14—Linings or internal coatings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/02—Plates, dishes or the like
-
- 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
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
- C23C16/402—Silicon dioxide
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
Definitions
- the present invention relates to a food container and a method for producing the same, and more particularly to a food container having a hydrophobic surface of the nanostructure having hydrophobicity and gas barrier properties and a method for producing the same.
- Food containers are used for the storage of food, etc.
- the food containers are mainly made of a plastic material such as polypropylene (PP) or polyethylene terephthalate (PET) due to its ease of manufacture and low cost.
- PP polypropylene
- PET polyethylene terephthalate
- Plastic materials having a relatively low surface energy are hydrophilic materials having a contact angle of 50 to 80 degrees with respect to pure water.
- the surface is hydrophilic, the surface prefers contact with water over contact with air, and thus water that clings to this surface has a large contact area with the surface and does not fall off well from the surface. In other words, the food is stably stuck to the surface.
- An object of the present invention devised to solve the above problems is to prevent stains caused by the adhesion of foods containing water to the surface of the food container, to reduce food residues remaining on the surface of the food container, the contact of food and food containers It is to provide a food container having a hydrophobic surface of a nanostructure that can block the harmful effects from the food container by minimizing the area and a method of manufacturing the same.
- the apparatus may further include a gas barrier film formed between the surface of the food container and the first hydrophobic thin film.
- the apparatus may further include a second hydrophobic thin film formed between the surface of the food container and the gas barrier film.
- nanostructures characterized in that formed in the shape of any one of nano-pillars, nano-rods, nano-dots or nanowires.
- the nanostructure is characterized in that the width is 1 to 100nm, the height is 1 to 1000nm.
- the contact angle of the first hydrophobic thin film is 90 degrees or more, the contact angle history is characterized in that less than 30 degrees.
- the sum of the thicknesses of the first hydrophobic thin film and the gas barrier film is less than half of the height of the nanostructure.
- the sum of the thicknesses of the first hydrophobic thin film, the gas barrier film, and the second hydrophobic thin film is less than half the height of the nanostructure.
- the first hydrophobic thin film is formed of hexamethyldisiloxane.
- the gas barrier film is formed of silicon oxide.
- the second hydrophobic thin film is characterized in that formed of hexamethyldisiloxane.
- gas barrier film and the first, second hydrophobic thin film is characterized in that the discontinuous coupling.
- gas barrier membrane and the first, the second hydrophobic thin film is characterized in that they are continuously bonded as the chemical composition of each other continuously changes.
- a nanostructure forming step of forming a plurality of nanostructures on a surface of a plastic food container and a first hydrophobic thin film on the upper surface of the nanostructures are formed. It comprises a first hydrophobic thin film coating step of coating.
- the nanostructure forming step and the first hydrophobic thin film coating step is carried out, further comprising a gas barrier film coating step of coating a gas barrier film on the upper surface of the nanostructure is formed.
- the method may further include a second hydrophobic thin film coating step performed between the nanostructure forming step and the gas barrier film coating step, and coating a second hydrophobic thin film on the surface on which the nanostructure is formed.
- nanostructures characterized in that formed in the shape of any one of nano-pillars, nano-rods, nano-dots or nanowires.
- the nanostructure is characterized in that the width is 1 to 100nm, the height is 1 to 1000nm.
- the contact angle of the first hydrophobic thin film is 90 degrees or more, the contact angle history is characterized in that less than 30 degrees.
- the sum of the thicknesses of the first hydrophobic thin film and the gas barrier film is less than half of the height of the nanostructure.
- the sum of the thicknesses of the first hydrophobic thin film, the gas barrier film, and the second hydrophobic thin film is less than half the height of the nanostructure.
- the first hydrophobic thin film is formed of hexamethyldisiloxane.
- the gas barrier film is formed of silicon oxide.
- the second hydrophobic thin film is characterized in that formed of hexamethyldisiloxane.
- gas barrier film and the first, second hydrophobic thin film is characterized in that the discontinuous coupling.
- gas barrier membrane and the first, the second hydrophobic thin film is characterized in that they are continuously bonded as the chemical composition of each other continuously changes.
- a food container having a hydrophobic surface having a nanostructure that can block harmful effects from the food container, and a manufacturing method thereof can be provided.
- a gas barrier film by additionally forming a gas barrier film, it is possible to provide a food container having a hydrophobic surface having a nanostructure that can retain not only hydrophobicity but also excellent gas barrier ability, and a manufacturing method thereof.
- Figure 1a is a view showing a food container having a hydrophobic surface of the nanostructure according to the first embodiment of the present invention.
- Figure 1b is a view showing a manufacturing method of the food container shown in Figure 1a.
- Figure 2a is a view showing a food container having a hydrophobic surface of the nanostructure according to the second embodiment of the present invention.
- Figure 2b is a view showing the manufacturing method of the food container shown in Figure 2a.
- Figure 3a is a view showing a food container having a hydrophobic surface of the nanostructure according to the third embodiment of the present invention.
- Figure 3b is a view showing a manufacturing method of the food container shown in Figure 3a.
- Figure 5a is a graph showing the dynamic contact angle of water measured according to the oxygen plasma treatment time applied to the food container.
- Figure 5b is a graph showing the dynamic contact angle of the vinegar measured according to the oxygen plasma treatment time applied to the food container.
- Figure 5c is a graph showing the dynamic contact angle of the liver measured according to the oxygen plasma treatment time applied to the food container.
- Figure 1a is a view showing a food container having a hydrophobic surface of the nanostructure according to the first embodiment of the present invention.
- a food container having a hydrophobic surface of a nanostructure according to a first embodiment of the present invention includes a plurality of nanostructures 20 and a first hydrophobic thin film 30. .
- Food container 100 is formed of a plastic material such as polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE, PE), polystyrene (PS).
- PP polypropylene
- PET polyethylene terephthalate
- PE polyethylene
- PS polystyrene
- the food container 100 In order to solve the problem (the food sticks by having hydrophilicity) of the food container 100 formed of the plastic material, the food container 100 according to the present embodiment forms a plurality of nanostructures 20 on the surface thereof. do.
- the surface of the food container 100 has a very small contact area with the food 60 including water. Accordingly, the surface of the food container 100 is hydrophobic.
- the first hydrophobic thin film 30 may be coated on the surface of the food container 100 on which the nanostructure 20 is formed.
- the first hydrophobic thin film 30 may be embodied as a material having low hydrophobicity due to low surface energy.
- the first hydrophobic thin film 30 may be embodied as hexamethyldisiloxane (HMDSO).
- Ethyl (polytetrafluoroethylene, PTFE) or alkyl ketone dimers (AKD) may also be used.
- the food container 100 of the present embodiment has a contact angle of the water droplets in contact with the first hydrophobic thin film 30 by the formation of the nanostructure 20 and the first hydrophobic thin film 30 is 90 degrees or more.
- the contact angle hysteresis is also less than 30 degrees.
- Contact angle is defined as the angle between the liquid and solid surfaces of liquids and solids in contact with each other, and is generally the angle between the tangent and the solid surface leading to the droplet surface at the point of contact between the droplet and the solid. It is represented by This contact angle is used as a measure of the wettability of the solid surface.
- Contact angle hysteresis can be defined as the difference between the advancing contact angle at which the liquid begins to move forward from the surface and the receding contact angle at which the liquid begins to move backward from the surface. A large value means that the liquid does not drip well from the surface, and a small value means that the liquid drips well from the surface.
- the contact angle of the first hydrophobic thin film 30 is formed to be 90 degrees or more to implement hydrophobicity, and the contact angle history is lowered to less than 30 degrees so that the food 60 is well formed on the surface of the food container 100. You can make it fall.
- the shape of the nanostructure 20 may be implemented in various ways, for example, may be formed in the shape of any one of nanopillars, nanorods, nanodots (nanodot) or nanowires (nanowire). have.
- the width of the nanostructure 20 may be set to 1 to 100nm, the height may be set to 1 to 1000nm.
- Figure 1b is a view showing a manufacturing method of the food container shown in Figure 1a. That is, the method for manufacturing the food container 100 according to the first embodiment of the present invention includes a food container preparation step (S100), a nanostructure forming step (S110) and a first hydrophobic thin film coating step (S120).
- a food container preparation step S100
- a nanostructure forming step S110
- a first hydrophobic thin film coating step S120
- the nanostructure forming step (S110) of forming a plurality of nanostructures 20 on the surface of the food container 100 is in progress.
- the nanostructure forming step (S110) first, dust on the surface of the food container 100 is removed using a nitrogen gun (not shown). Thereafter, the food container 100 is placed in a chamber of an RF-CVD (Radio Frequency-Chemical Vapor Deposition) device, thereby forming a vacuum state.
- RF-CVD Radio Frequency-Chemical Vapor Deposition
- the vacuum pressure in the chamber of the RF-CVD apparatus is adjusted to a predetermined value by using a pump or the like, and plasma treatment is started on the surface of the food container 100.
- the plasma state is generated by RF-power. Then, a plurality of nanostructures 20 are formed on the surface of the food container 100 by a chemical reaction between the food container 100 and the oxygen plasma.
- the height of the nanostructure 20 becomes larger and the width thereof becomes narrower. That is, the more sharp and long form nanostructure 20 is formed.
- the first hydrophobic thin film coating step (S120) is performed.
- the first hydrophobic thin film coating step (S120) after the oxygen plasma treatment performed in the nanostructure forming step (S110) is completed, the first hydrophobic thin film forming material in a gaseous state is introduced into a chamber of the RF-CVD apparatus. Thereafter, the gaseous first hydrophobic thin film forming material may be deposited on the surface of the food container 100 in which the nanostructure 20 is formed by generating a plasma state by RF-power. Accordingly, the first hydrophobic thin film 30 is coated on the surface of the food container 100.
- hexamethyldisiloxane (HMDSO) gas is introduced as the first hydrophobic thin film forming material, it is formed as a first hydrophobic thin film 30 made of pp-hexamethyldisiloxane (plasma polymerized HMDSO, pp-HMDSO). can do.
- the first hydrophobic thin film 30 made of pp-hexamethyldisiloxane (pp-HMDSO) has a low surface energy and has hydrophobicity.
- Figure 2a is a view showing a food container having a hydrophobic surface of the nanostructure according to the second embodiment of the present invention.
- a food container 200 having a hydrophobic surface having a nanostructure according to a second embodiment of the present invention includes a plurality of nanostructures 20, a first hydrophobic thin film 30, and a gas barrier film. And 40.
- the present embodiment has a difference in that the gas barrier film 40 is further included in comparison with the above-described first embodiment, and thus the description thereof will be mainly described, and a description overlapping with the above-described first embodiment will be omitted.
- the gas barrier film 40 is formed between the surface of the food container 200 and the first hydrophobic thin film 30.
- the first hydrophobic thin film 30 is coated on the surface of the food container 200 in which the gas barrier film 40 is formed.
- the food container 200 according to the present embodiment can have excellent gas barrier ability. Accordingly, long-term storage of food stored in the food container 200 is possible.
- the gas barrier film 40 is preferably silicon oxide having a high thin film density and excellent gas barrier ability.
- the sum of the thickness h3 of the first hydrophobic thin film 30 and the thickness h4 of the gas barrier film 40 is set too large, the space between the nanostructures 20 is reduced and hydrophobicity is inhibited. Therefore, it is preferable that the sum of the thickness h3 of the first hydrophobic thin film 30 and the thickness h4 of the gas barrier film 40 is set to not more than half of the height h2 of the nanostructure 20.
- Figure 2b is a view showing the manufacturing method of the food container shown in Figure 2a. That is, the method for manufacturing the food container 200 according to the second embodiment of the present invention is a food container preparation step (S200), nano-structure forming step (S210), gas barrier membrane coating step (S220) and the first hydrophobic thin film coating Step S230 is included.
- the method for manufacturing the food container 200 according to the second embodiment of the present invention is a food container preparation step (S200), nano-structure forming step (S210), gas barrier membrane coating step (S220) and the first hydrophobic thin film coating Step S230 is included.
- Food container preparation step (S200) and nano-structure forming step (S210) is the same as the first embodiment described above.
- the present embodiment proceeds with the gas barrier film coating step S220 before the first hydrophobic thin film coating step S230.
- the gas barrier membrane 40 is coated on the surface of the food container 200 in which the nanostructure 20 is formed.
- This process can be done in the chamber of the RF-CVD equipment using the plasma.
- the gas barrier layer 40 may be silicon oxide having a high thin film density and having excellent gas barrier ability.
- the first hydrophobic thin film coating step S230 of coating the first hydrophobic thin film 30 on the gas barrier film 40 is performed.
- the first hydrophobic thin film coating step S230 may be performed in the same manner as in the first embodiment.
- gas barrier film coating step (S220) and the first hydrophobic thin film coating step (S230) may be discontinuously or continuously.
- the discontinuous process releases the plasma state after forming the gas barrier film 40, and after confirming that the gas coating the first hydrophobic thin film 30 stably flows into the chamber, generates the plasma state again to generate the first hydrophobic thin film. 30 to coat.
- the gas barrier film 40 and the first hydrophobic thin film 30 are discontinuously bonded so that their compositions do not continuously change.
- the continuous process maintains the plasma state even after the gas barrier film 40 is formed, and the gas flowing into the chamber is continuously formed from the gas forming the gas barrier film 40 to the gas forming the first hydrophobic thin film 30. It is a change.
- a thin film structure in which the composition gradually changes from the gas barrier film 40 to the first hydrophobic thin film 30 can be formed.
- This continuous process can be used to save the time it takes to change the gas in a plant that performs mass production, and has the effect of alleviating the stress differences between thin films during discontinuous deposition.
- the nanostructure 20, the gas barrier film 40, the first hydrophobic thin film 30 is located on the surface of the food container 200 in order.
- Figure 3a is a view showing a food container having a hydrophobic surface of the nanostructure according to the third embodiment of the present invention.
- a food container 300 having a hydrophobic surface having a nanostructure according to a third embodiment of the present invention includes a plurality of nanostructures 20, a first hydrophobic thin film 30, and a gas barrier film. 40 and the second hydrophobic thin film 50.
- the present embodiment has a difference in that the second hydrophobic thin film 50 is further included in comparison with the above-described second embodiment, and thus the description thereof will be omitted and the description overlapping with the above-described second embodiment will be omitted. .
- the second hydrophobic thin film 50 is formed between the surface of the food container 300 and the gas barrier film 40. That is, the second hydrophobic thin film 50 is first coated on the surface of the food container 300, and then the gas barrier film 40 is formed thereon.
- the first hydrophobic thin film 30 is coated thereon.
- the second hydrophobic thin film 50, the gas barrier film 40, and the first hydrophobic thin film 30 are sequentially positioned on the nanostructure 20 of the food container 300.
- the second hydrophobic thin film 50 located at the bottom is a buffer thin film for alleviating this problem. It acts as a (buffer-layer).
- the second hydrophobic thin film 50 is preferably formed of the same material as the first hydrophobic thin film 30. Accordingly, the second hydrophobic thin film 50 is also preferably implemented with hexamethyldisiloxane (HMDSO). However, the well-known hydrophobic thin film polytetrafluoroethylene (PTFE) or alkyl ketone dimer is generally used. , AKD) may also be used.
- HMDSO hexamethyldisiloxane
- PTFE polytetrafluoroethylene
- AKD alkyl ketone dimer
- the nanostructure Since the space between 20 is reduced, hydrophobicity is impaired, the thickness h3 of the first hydrophobic thin film 30, the thickness h4 of the gas barrier film 40, and the thickness of the second hydrophobic thin film 50 ( The sum of h5) is preferably set to half or less of the height h2 of the nanostructure 20.
- Figure 3b is a view showing a manufacturing method of the food container shown in Figure 3a. That is, the method for manufacturing the food container 300 according to the third embodiment of the present invention is a food container preparation step (S300), nano-structure forming step (S310), the second hydrophobic thin film coating step (S320), gas barrier membrane coating Step S330 and the first hydrophobic thin film coating step (S340).
- the method for manufacturing the food container 300 according to the third embodiment of the present invention is a food container preparation step (S300), nano-structure forming step (S310), the second hydrophobic thin film coating step (S320), gas barrier membrane coating Step S330 and the first hydrophobic thin film coating step (S340).
- Food container preparation step (S300) and nano-structure forming step (S310) is the same as the first and second embodiments described above.
- the second hydrophobic thin film coating step S320 is performed before the gas barrier film coating step S330.
- the second hydrophobic thin film coating step (S320) the second hydrophobic thin film 50 is coated on the surface of the food container 300 in which the nanostructure 20 is formed, which is the first hydrophobic thin film coating step in the above-described first embodiment. It may proceed in the same manner as in (S120).
- the gas barrier membrane coating step S330 and the first hydrophobic thin film coating step S340 are sequentially performed.
- the gas barrier membrane 40 is coated on the second hydrophobic thin film 50.
- the first hydrophobic membrane coating stage (S340) the first hydrophobic membrane 30 is formed on the gas barrier membrane 40. Will be coated.
- the second hydrophobic thin film coating step (S320), the gas barrier membrane coating step (S330) and the first hydrophobic thin film coating step (S340) can be carried out discontinuously or continuously similar to the second embodiment described above. have.
- the plasma state is released, and after confirming that the gas coating the gas barrier film 40 stably flows into the chamber, the plasma state is generated again to generate the gas barrier film 40. ), Release the plasma state after forming the gas barrier film 40, and after confirming that the gas coating the first hydrophobic thin film 30 is stably introduced into the chamber, the plasma state is again generated to generate the first hydrophobicity. To coat the thin film 30.
- the second hydrophobic thin film 50, the gas barrier film 40, and the first hydrophobic thin film 30 are discontinuously coupled so that their compositions do not continuously change.
- the continuous process maintains the plasma state even after the second hydrophobic thin film 50 is formed, and forms the gas barrier layer 40 in the gas continuously forming the second hydrophobic thin film 50. Switch to gas.
- the plasma state is maintained even after the gas barrier film 40 is formed, and the gas flowing into the chamber is changed from a gas which continuously forms the gas barrier film 40 to a gas for forming the first hydrophobic thin film 30.
- a thin film structure in which the composition is gradually changed from the second hydrophobic thin film 50 to the first hydrophobic thin film 30 through the gas barrier film 40 can be formed.
- This continuous process can be used to save the time it takes to change the gas in a plant that performs mass production, and has the effect of alleviating the stress differences between thin films during discontinuous deposition.
- the x axis represents the oxygen plasma treatment time that proceeds before coating the hydrophobic thin film and the gas barrier film
- the y axis represents the static contact angle measured while the corresponding droplet is stopped.
- the experiment was conducted using a PP sheet (PolyPropylene sheet), a plastic material widely used as a food container.
- PP sheet PolyPropylene sheet
- the dust on the surface of the PP plate is blown clean with a nitrogen gun for 1 minute, and then placed in a chamber of RF-CVD (Radio Frequency-Chemical Vapor Deposition) equipment. It builds up a vacuum.
- RF-CVD Radio Frequency-Chemical Vapor Deposition
- the vacuum pressure in the chamber was lowered to a high vacuum of 10 -6 mtorr, and then plasma treatment was started on the surface of the PP plate.
- a plasma state is formed by RF-power.
- a plurality of nanostructures 20 are formed on the surface of the PP plate by a chemical reaction between the PP plate and the oxygen plasma.
- the second hydrophobic thin film 50, the gas barrier film 40, and the first hydrophobic thin film 30 are sequentially coated.
- the first hydrophobic thin film 30 and the second hydrophobic thin film 50 were formed of pp-hexamethyldisiloxane (pp-HMDSO), and the gas barrier film 40 was formed of silicon oxide.
- first hydrophobic thin film 30 and the second hydrophobic thin film 50 were coated with a thickness of 30 nm, and the gas barrier film 40 was coated with 60 nm.
- Figure 5a is a graph showing the dynamic contact angle of water measured according to the oxygen plasma treatment time applied to the food container
- Figure 5b is a graph showing the dynamic contact angle of vinegar measured according to the oxygen plasma treatment time applied to the food container
- Figure 5c It is a graph showing the dynamic contact angle of the liver measured according to the oxygen plasma treatment time added to the food container.
- the x axis represents the oxygen plasma treatment time that proceeds before coating the hydrophobic thin film and the gas barrier film
- the y axis represents the dynamic contact angle.
- the advancing contact angle and the receding contact angle of the droplets are separately shown.
- the small contact angle history means that liquid can easily flow off the surface with a slight tilt of the surface. That is, the smaller the contact angle history, the less liquid adheres to the surface. As can be seen in Figures 5a to 5c, it can be seen that as the oxygen plasma treatment is prolonged, the contact angle history of water, vinegar and soy sauce decreases.
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Abstract
Description
Claims (26)
- 플라스틱 재질의 식품용기에 있어서,상기 식품용기의 표면에 형성되는 복수의 나노구조체; 및상기 나노구조체가 형성된 상기 표면 상측으로 코팅되는 제 1소수성박막; 을 포함하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 1항에 있어서,상기 식품용기의 표면과 상기 제 1소수성박막 사이에 형성되는 가스차단막; 을 더 포함하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 2항에 있어서,상기 식품용기의 표면과 상기 가스차단막 사이에 형성되는 제 2소수성박막; 을 더 포함하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 1항에 있어서, 상기 나노구조체는,나노 필라, 나노 로드, 나노 닷 또는 나노 와이어 중 어느 하나의 형상으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 1항에 있어서, 상기 나노구조체는,폭이 1 내지 100nm이고, 높이가 1 내지 1000nm인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 1항에 있어서,상기 제 1소수성박막의 접촉각은 90도 이상이며, 그 접촉각 이력은 30도 미만인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 2항에 있어서,제 1소수성박막과 상기 가스차단막의 두께의 합은, 상기 나노구조체 높이의 절반 이하인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 3항에 있어서,제 1소수성박막, 상기 가스차단막 및 상기 제 2소수성박막의 두께의 합은, 상기 나노구조체 높이의 절반 이하인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 1항에 있어서, 상기 제 1소수성박막은,헥사메틸디실록산으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 2항에 있어서, 상기 가스차단막은,산화실리콘으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 3항에 있어서, 상기 제 2소수성박막은,헥사메틸디실록산으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 3항에 있어서,상기 가스차단막과 상기 제 1, 2소수성박막이 불연속적으로 결합되어 있는 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 제 3항에 있어서,상기 가스차단막과 상기 제 1, 2소수성박막이 상호간 화학적 조성이 연속적으로 변화함에 따라 연속적으로 결합되어 있는 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기.
- 플라스틱 재질의 식품용기의 표면에 복수의 나노구조체를 형성하는 나노구조체 형성단계; 및상기 나노구조체가 형성된 상기 표면 상측으로 제 1소수성박막을 코팅하는 제 1소수성박막 코팅단계; 를 포함하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 14항에 있어서,상기 나노구조체 형성단계와 상기 제 1소수성박막 코팅단계 사이에 수행되며, 상기 나노구조체가 형성된 상기 표면 상측으로 가스차단막을 코팅하는 가스차단막 코팅단계; 더 포함하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 15항에 있어서, 상기 나노구조체 형성단계와 상기 가스차단막 코팅단계 사이에 수행되며, 상기 나노구조체가 형성된 상기 표면 상측으로 제 2소수성박막을 코팅하는 제 2소수성박막 코팅단계; 를 더 포함하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 14항에 있어서, 상기 나노구조체는,나노 필라, 나노 로드, 나노 닷 또는 나노 와이어 중 어느 하나의 형상으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 14항에 있어서, 상기 나노구조체는,폭이 1 내지 100nm이고, 높이가 1 내지 1000nm인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 14항에 있어서,상기 제 1소수성박막의 접촉각은 90도 이상이며, 그 접촉각 이력은 30도 미만인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 15항에 있어서,제 1소수성박막과 상기 가스차단막의 두께의 합은, 상기 나노구조체 높이의 절반 이하인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 16항에 있어서,제 1소수성박막, 상기 가스차단막 및 상기 제 2소수성박막의 두께의 합은, 상기 나노구조체 높이의 절반 이하인 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 14항에 있어서, 상기 제 1소수성박막은,헥사메틸디실록산으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 15항에 있어서, 상기 가스차단막은,산화실리콘으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 16항에 있어서, 상기 제 2소수성박막은,헥사메틸디실록산으로 형성된 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 16항에 있어서,상기 가스차단막과 상기 제 1, 2소수성박막이 불연속적으로 결합되어 있는 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
- 제 16항에 있어서,상기 가스차단막과 상기 제 1, 2소수성박막이 상호간 화학적 조성이 연속적으로 변화함에 따라 연속적으로 결합되어 있는 것을 특징으로 하는 나노구조의 소수성 표면을 갖는 식품용기의 제조방법.
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JP2014529614A JP6085302B2 (ja) | 2011-09-08 | 2012-09-06 | ナノ構造の疎水性表面を有する食品容器及びその製造方法 |
US14/343,574 US20140246429A1 (en) | 2011-09-08 | 2012-09-06 | Food container having nanostructured hydrophobic surface and manufacturing method thereof |
EP12829733.0A EP2754618A4 (en) | 2011-09-08 | 2012-09-06 | FOOD CONTAINER HAVING NANOSTRUCTURED HYDROPHOBIC SURFACE AND METHOD FOR MANUFACTURING THE SAME |
CN201280043931.9A CN103826978A (zh) | 2011-09-08 | 2012-09-06 | 具有纳米结构的疏水性表面的食品容器及其制造方法 |
US15/384,995 US20170101220A1 (en) | 2011-09-08 | 2016-12-20 | Food container having nanostructured hydrophobic surface and manufacturing method thereof |
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US15/384,995 Division US20170101220A1 (en) | 2011-09-08 | 2016-12-20 | Food container having nanostructured hydrophobic surface and manufacturing method thereof |
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WO2015042118A1 (en) * | 2013-09-17 | 2015-03-26 | LiquiGlide Inc. | Articles and methods for forming liquid films on surfaces of articles |
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WO2017159654A1 (ja) * | 2016-03-14 | 2017-09-21 | デンカ株式会社 | 撥液性樹脂シート及びそれを用いた物品 |
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CN105966017A (zh) * | 2016-06-08 | 2016-09-28 | 竹菱(大连)实业有限公司 | 一种纳米不沾薄膜 |
CN106752214B (zh) * | 2017-01-13 | 2020-01-31 | 吉林大学 | 一种基于非连续性润湿性改良的仿生防结冰表面 |
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- 2012-09-06 WO PCT/KR2012/007177 patent/WO2013036042A1/ko active Application Filing
- 2012-09-06 US US14/343,574 patent/US20140246429A1/en not_active Abandoned
- 2012-09-06 EP EP12829733.0A patent/EP2754618A4/en not_active Withdrawn
- 2012-09-06 JP JP2014529614A patent/JP6085302B2/ja active Active
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2016
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WO2015042118A1 (en) * | 2013-09-17 | 2015-03-26 | LiquiGlide Inc. | Articles and methods for forming liquid films on surfaces of articles |
US10870505B2 (en) | 2013-09-17 | 2020-12-22 | LiquiGlide Inc. | Articles and methods for forming liquid films on surfaces, in devices incorporating the same |
US11603222B2 (en) | 2013-09-17 | 2023-03-14 | LiquiGlide Inc. | Articles and methods for forming liquid films on surfaces, in devices incorporating the same |
Also Published As
Publication number | Publication date |
---|---|
JP2014532012A (ja) | 2014-12-04 |
JP6085302B2 (ja) | 2017-02-22 |
US20170101220A1 (en) | 2017-04-13 |
EP2754618A1 (en) | 2014-07-16 |
EP2754618A4 (en) | 2015-04-22 |
CN103826978A (zh) | 2014-05-28 |
KR20130027852A (ko) | 2013-03-18 |
US20140246429A1 (en) | 2014-09-04 |
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