WO2004103697A1 - 缶用ラミネート金属板 - Google Patents
缶用ラミネート金属板 Download PDFInfo
- Publication number
- WO2004103697A1 WO2004103697A1 PCT/JP2004/007306 JP2004007306W WO2004103697A1 WO 2004103697 A1 WO2004103697 A1 WO 2004103697A1 JP 2004007306 W JP2004007306 W JP 2004007306W WO 2004103697 A1 WO2004103697 A1 WO 2004103697A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal plate
- heat treatment
- film
- laminating
- metal sheet
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 71
- 239000002184 metal Substances 0.000 title claims abstract description 71
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 25
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 25
- 229920001225 polyester resin Polymers 0.000 claims abstract description 17
- 239000004645 polyester resin Substances 0.000 claims abstract description 16
- 238000001237 Raman spectrum Methods 0.000 claims abstract description 13
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000010030 laminating Methods 0.000 claims description 21
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 12
- 238000001069 Raman spectroscopy Methods 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 7
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 claims description 3
- 238000011282 treatment Methods 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 3
- 238000012545 processing Methods 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 30
- 239000011347 resin Substances 0.000 description 30
- 239000013078 crystal Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 13
- 238000005259 measurement Methods 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000010287 polarization Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000005029 tin-free steel Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000009924 canning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- DIWSMVWJOBILHY-UHFFFAOYSA-N cyclohexane-1,1-dicarbaldehyde Chemical compound O=CC1(C=O)CCCCC1 DIWSMVWJOBILHY-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B1/00—Layered products having a general shape other than plane
-
- 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
- B32B15/00—Layered products comprising a layer of metal
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/09—Layered products comprising a layer of metal comprising metal 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 comprising polyesters
-
- 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
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2435/00—Closures, end caps, stoppers
- B32B2435/02—Closures, end caps, stoppers for containers
-
- 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
- B32B2439/40—Closed containers
- B32B2439/66—Cans, tins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
Definitions
- the present invention relates to a metal can for lamination used for a metal can and a can lid, which is subjected to a heat treatment such as baking coating or baking printing and then processed.
- Laminating in a broad sense means making plywood or laminating a resin film, aluminum foil, paper, or the like. In the present application, it means that at least one surface of the metal plate is covered with a resin film.
- Japanese Patent Publication No. Sho 60-471103 proposes a method of laminating a polyester film in which a polyester resin is fused to a metal plate at a temperature not lower than its melting point.
- a technique has been disclosed in which an amorphous polyester layer is formed near the interface of a metal plate by this method, and the adhesion between the metal plate and the film is improved by the amorphous layer.
- JP-A-10-138389 and JP-A-10-338390 disclose that an amorphous polyester layer near the interface of a metal plate has a birefringence of 0.0.
- a technique for improving the adhesion between a metal plate and a film after processing by setting the ratio of the amorphous layer to the thickness of the entire film to 40 to 90% by setting the orientation to 10 or less in a low orientation state is disclosed. ing.
- the laminated metal sheet described in the above three publications shows excellent workability when it is formed into a can body or a can lid or the like as it is after lamination (hereinafter, also referred to as can manufacturing).
- the film on the metal plate can be processed in the painting or printing process. Since the film is brittle due to heat, the film is cracked in the can making process.
- the present invention provides a laminated metal for cans that has excellent workability such that a resin film on a metal plate does not crack even if canning is performed after heat treatment such as baking coating or baking printing.
- the purpose is to provide a board. Disclosure of the invention
- the present invention relates to a laminated metal plate for a can having a polyester resin film containing at least about 50 mol% of polyethylene terephthalate on at least one side of the metal plate, wherein the laminated metal plate for a can is heat-treated.
- the heat treatment is preferably at least one treatment selected from the group consisting of baking coating and baking printing.
- the laminated metal plate is preferably such that the polyester resin is a copolyester containing about 50 mol% or more of an ethylene terephthalate component.
- the polyester is a copolymerized polyester obtained from terephthalic acid, isophthalic acid and ethylene dalicol
- the present invention provides a can which is obtained by laminating a polyester resin mainly composed of polyethylene terephthalate after heat treatment.
- Fig. 4 shows the results of investigating the Raman spectrum measurement position on the cross section of the resin layer and the half width of the 00 stretching vibration peak for the laminated metal plate in which no cracks occurred in the film after the heat treatment.
- FIG. 5 shows an embodiment of a heat fusion type laminating apparatus.
- the present inventors diligently studied a film for a laminated metal plate that does not crack in a film in a can-making or lid-making process even after heat treatment such as baking coating or baking printing.
- heat treatment such as baking coating or baking printing.
- the heat treatment in the present invention means heating at a temperature of about 150 to 220 ° C. for several minutes to several tens of minutes before can making or lid making. Examples of such heat treatment include baking painting and baking printing.
- the non-oriented crystal in the present invention refers to a polymer crystal that is not oriented in a specific direction, and is generally called a spherulite. It is called a non-oriented crystal to distinguish it from an oriented crystal having planar orientation by biaxial stretching.
- the inventors used the half-width of the shift peak obtained by laser Raman spectroscopy as an index of the degree of crystallinity of the non-oriented crystal (spherulite), and controlled the half-width to a specific range. We have found that a laminated steel sheet with excellent workability after heat treatment can be obtained.
- the relationship between the volume fraction crystallinity (hereinafter referred to as the crystallinity), which indicates the degree of formation of crystalline polyester, and the density of the resin laminated on the metal plate is expressed by the following formula (1). (Solid structure of polymer II (Kyoritsu Shuppan, 1974) 3 05).
- volume fraction crystallinity (%) (P-/ 0 a) / (c-a) X 100 ... (1) where p is the measured density, and It is the density of completely amorphous.
- FIG. 1 shows the results of measurement of Raman spectra for PET resins with different densities, using linearly polarized Ar + laser (wavelength: 514.5 nm) as the laser light source.
- Half-width so that the degree depends Ru wavenumber resolution near the spectrometer, for accuracy, to set the wave number resolution of the spectrometer in 1 0. 4 C HT 1.
- a shift peak due to C 0 stretching vibration appears at 1730 ⁇ 20 cm—that is, 1710 to 1750 cm— 1 , which can be easily identified by those skilled in the art.
- PET C ⁇ shift peak due to stretching vibration of is appearing in 1730 cm- 1, since the wave number resolution is 10.4C HT 1, observed in 1730 ⁇ 10.4cm- 1.
- the center of gravity of the shift peak appears in 1 ⁇ 3 0 c [pi 1 neighborhood.
- the correlation between the half width of the peak and the crystallinity of the resin laminated on the steel sheet can be known. Therefore, if a calibration curve having a half width obtained using a PET resin having a known density is created, it can be used as an index of the crystallinity of a non-oriented crystal. In this way, if the formation of non-oriented crystals in the film by heat treatment is controlled so that the half-value width of the peak falls within an appropriate range, there is a possibility that deterioration in workability after heat treatment of the film may be prevented.
- a calibration curve having a half width obtained using a PET resin having a known density it can be used as an index of the crystallinity of a non-oriented crystal.
- the relationship between the occurrence of cracks and the half-width (ie, the crystallinity) used as an index of the crystallinity of the non-oriented crystal was investigated.
- a laminated metal plate having cracks due to DuPont impact processing and a laminated metal plate having no cracks were prepared.
- a metal plate that had been laminated without heat treatment was also prepared.
- the cross section of each metal plate was polished, laser light was vertically incident on the cross section of the resin layer, and Raman scattered light was measured.
- the laser beam used was a linearly polarized Ar + laser (wavelength: 514.5 nm), and was incident under the condition that the polarization direction was parallel to the thickness direction of the film cross section.
- the laser beam was focused on the sample surface with a lens (XI 00) to about 1 ⁇ and measured.
- the measurement was performed under the condition that the polarization direction of the linearly polarized light is parallel to the thickness direction of the cross section of the film, because this condition is most suitable for the evaluation of a non-oriented crystal having poor orientation. is there.
- the polarization direction is perpendicular to the thickness direction of the film cross-section (that is, parallel to the film surface)
- the crystallinity of the plane-oriented crystals during stretching during film formation while the polarization direction is parallel to the thickness direction of the film cross-section This is because the crystallinity of the non-oriented crystal can be evaluated when the value is set to.
- the half-value width near the resin surface after heat treatment (calculated as the average of three measured values from the surface to 1 ⁇ m to a depth of 3 ⁇ in) is 21.2 cm in FIG. Is 22.9 cm— 1 .
- Laminated metal plate with cracks has high crystallinity of non-oriented crystals on the resin surface after heat treatment, and laminated metal plate without cracks has crystallized non-oriented crystals on resin surface after heat treatment. It turns out that the degree is low. Therefore, the increase in the degree of crystallinity of the non-oriented crystal caused by the heat treatment causes cracks in the processing step performed after the heat treatment. It can also be seen that the crystallinity of the non-oriented crystal after the heat treatment depends on the half width on the film surface.
- the upper limit of the half width of the peak is 25 cirT 1 or less. Since the half width of PET resin in a completely amorphous state is about 25 cm- 1 , the half width of 25 cm- 1 is considered to be substantially free of crystals. is there. Te the month, the half-width of the range of the peak of the film surface, unoriented crystals half width 2 5 cm- 1 is The range from the non-existing state to the state of the crystallinity of the non-oriented crystal defined by the half width at 22 cm- 1 .
- the PET of the present invention as about 5 0 mole 0/0 or more content to a polyester resin, a resin can be used widely, including poly ethylene terephthalate as a main component.
- the content of PET is about 50 mol% or more.
- the content of the preferred PET is about 8 0 to about 1 0 0 mole 0/0, more preferably about 8 5 to about 9 0 mole 0/0.
- Examples of the metal plate used in the present invention include various surface-treated steel plates, and light metal plates such as aluminum, copper, and alloys thereof.
- As the surface-treated steel sheet cold-rolled steel sheet is annealed and then subjected to secondary cold rolling, zinc-based plating, tin-plated, nickel-plated, chrome-plated, double-layered tin and grommet, electrolytic chromic acid treatment, chromium
- As the light metal plate a pure aluminum plate, an aluminum alloy plate, a copper alloy or the like can be widely used.
- the polyester resin may be laminated on at least one side of a metal plate. In the current industrial situation, they are often laminated on both sides.
- the thickness (total thickness) of the polyester resin to be laminated is not particularly limited, but is preferably in the range of 5 to 50 ⁇ m. When the thickness is 5 ⁇ m or more, the workability of lamination is improved, and sufficient corrosion resistance is obtained. On the other hand, if it is 50 ⁇ m or less, it is more economical than an epoxy paint widely used in the field of can making. Colorants such as pigments and dyes for improving aesthetics, and inorganic lubricants and antistatic agents for imparting lubricity may be added to the resin film.
- the method of thermocompression-coating a resin film on the surface of such a metal plate is not particularly limited.
- a metal band 2 heated in a heating device 1 is sandwiched between a pair of laminating rolls 4 by using a heat fusion type laminating device shown in FIG. 2.
- Resin film 3 is continuously laminated on one or both sides of 2. At this time, it is also possible to provide an adhesive layer between the film and the metal plate, and to laminate via an adhesive.
- the resin film After the resin film is pressed, it is desirable to cool rapidly. When quenching is performed, non-oriented crystals are less likely to be formed in the film, which is advantageous in workability. In order to prevent the formation of non-oriented crystals in the laminating step, it is preferable that the temperature be lower than the glass transition point of the film within 5 seconds.
- Laminating conditions metal strip heating temperature, laminating roll temperature, polyester resin film after thermocompression bonding
- Laminating roll temperature polyester resin film after thermocompression bonding
- It was manufactured by adjusting the cooling conditions and others.
- heat treatment was performed under the heat treatment conditions shown in Table 1 to obtain samples.
- the cross section of the obtained heat-treated sample was buffed, and the Raman spectrum of the resin layer was measured by laser Raman spectroscopy using linearly polarized laser light under the condition that the polarization direction was perpendicular to the film surface.
- Ar + laser (wavelength: 54.5 nm) was used as the incident light, and the laser light was condensed to about 1 m on the sample surface by a lens (X100), and the measurement was performed.
- laser The intensity was 2 mW on the sample surface.
- the aperture was set to 200 ⁇ m.
- the measurement was performed at a pitch of 1 zm in the J direction, and the average value of three points from the film surface layer was determined to be the half-width of the film surface layer. Since the laser light emitted from the laser oscillator was highly pure linearly polarized light, no polarizer was used in this measurement.
- the workability after the heat treatment was evaluated as follows. It was cut into a size of 10 OmmX 10 Omm, charged into a hot-air circulating furnace set at a predetermined temperature in advance, and taken out after a lapse of a certain time. Table 1 shows the specific furnace set temperature and processing time of the examples and comparative examples. The sample subjected to such heat treatment was subjected to a Dupont impact test (bonnet tip diameter: 1/4 inch, weight load: 1. O kg, weight drop height: 30 Omm) with the target laminated surface facing down.
- Example 10 // II If if 215 11 II 180. CX 15 minutes 23.4 0.03
- Example 11 II 12 // 0.2 223 110 1.2 180 ° Cx 15 minutes 22.9 0.06
- Example 13 II 5 // 0.15 210 II II 180 ° C X 15 minutes 23.5 0.05
- Example 14 II 20 Tinned tinplate 0.3 220 80 0.7 180 ° C x 15 minutes 23.2 001 ffi
- Example 15 II 20 Aluminum alloy n 220 80 0.7 180 ° CX 15 minutes 23,4 0015fe3 ⁇ 4 o
- Example 16 B 20 TFS II 220 80 3.6 180 o Cx 15 minutes 23.1 0015fe; 3 ⁇ 4 Example 17 C 20 II 0.25 250 100 0.7 130 ° CX 15 minutes 22.5 0.02 Example 18 II II II 11 245 100 0.7 130 ° CX 15 Min 23.2 0.01 Example 19 It II if 252 100 0.7 130 ° C X 15 min 22.3 0.03 Comparative 1 A 20 II 0.3 225 80 0.7 180 ° C X 2 min 21.6 4.6 Comparative 2 II II // If II II 180 ° C X 5 min 21.4 15 Comparative Example 3 II If // // II II II 180 ° C X 10 minutes 21.0 20 Comparative Example 4 II II if II II II II 180 ° C X 15 minutes 20.8 32 Comparative Example 5 II // II it ⁇ II It 180 ° CX 30 minutes 20.5 38 Comparative Example 6 II // // II 222 II II 180 ° C X 30 minutes 21.8 0.2 Comparative Example 7 c 20 ⁇ 0.25 255 100 0.7 130 ° C
- Film B Isophthalic acid copolymerized PET (isophthalic copolymerization ratio 8 mol%)
- the present invention it is possible to obtain a laminated metal plate for a can having excellent workability after heat treatment.
- the metal plate obtained by laminating the polyester-based resin mainly composed of polyethylene terephthalate of the present invention has excellent workability after heat treatment, the metal plate is processed after heat treatment such as painting or printing. It is suitable as a material for metal cans and can lids to be applied and molded.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04734401A EP1625934A4 (en) | 2003-05-22 | 2004-05-21 | LAMINATED PLATE FOR CAN |
US10/556,823 US20070036995A1 (en) | 2003-05-22 | 2004-05-21 | Laminated metal sheet for can |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-144988 | 2003-05-22 | ||
JP2003144988A JP2004345232A (ja) | 2003-05-22 | 2003-05-22 | 熱処理後の加工性に優れた缶用ラミネート金属板 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004103697A1 true WO2004103697A1 (ja) | 2004-12-02 |
Family
ID=33475222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007306 WO2004103697A1 (ja) | 2003-05-22 | 2004-05-21 | 缶用ラミネート金属板 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070036995A1 (ja) |
EP (1) | EP1625934A4 (ja) |
JP (1) | JP2004345232A (ja) |
WO (1) | WO2004103697A1 (ja) |
Cited By (1)
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WO2015125184A1 (ja) * | 2014-02-21 | 2015-08-27 | Jfeスチール株式会社 | 容器用樹脂被覆金属板およびその製造方法 |
Families Citing this family (16)
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---|---|---|---|---|
DE102005015340B4 (de) * | 2005-04-01 | 2011-11-17 | Jowat Ag | Verfahren zur Herstellung von mit einer Bedruckung oder einem Dekorversehenen Formkörpern und auf diese Weise hergestellte Formkörper |
JP4622737B2 (ja) * | 2005-08-12 | 2011-02-02 | Jfeスチール株式会社 | 2ピース缶用ラミネート鋼板および2ピースラミネート缶 |
US20090061133A1 (en) * | 2005-08-12 | 2009-03-05 | Jfe Steel Corporation A Corporation Of Japan | Two-piece can, method for manufacturing same, and steel sheet therefor |
JP4961696B2 (ja) * | 2005-08-12 | 2012-06-27 | Jfeスチール株式会社 | 2ピース缶の製造方法および2ピースラミネート缶 |
JP5082383B2 (ja) * | 2006-10-27 | 2012-11-28 | Jfeスチール株式会社 | 2ピース缶体用ラミネート鋼板および2ピース缶体の製造方法、ならびに2ピースラミネート缶 |
JPWO2010032683A1 (ja) * | 2008-09-16 | 2012-02-09 | 東レ株式会社 | 離型性ポリエステル積層フィルム |
JP5509575B2 (ja) * | 2008-10-30 | 2014-06-04 | Jfeスチール株式会社 | 容器用樹脂被覆金属板 |
JP5874659B2 (ja) * | 2013-02-28 | 2016-03-02 | Jfeスチール株式会社 | 2ピース缶用ラミネート金属板および2ピースラミネート缶体 |
JP5800112B1 (ja) * | 2013-10-30 | 2015-10-28 | Jfeスチール株式会社 | 容器用ラミネート金属板、金属缶の製造方法、及び金属板成形性評価方法 |
WO2015125185A1 (ja) * | 2014-02-21 | 2015-08-27 | Jfeスチール株式会社 | 容器用樹脂被覆金属板およびその製造方法 |
EP3231723B1 (en) * | 2014-12-12 | 2018-11-28 | JFE Steel Corporation | Resin-coated metal sheet for can lids |
JP6884640B2 (ja) * | 2016-05-30 | 2021-06-09 | 東洋鋼鈑株式会社 | 熱可塑性ポリエステル樹脂被覆金属板、熱可塑性ポリエステル樹脂被覆金属板から成る缶および熱可塑性ポリエステル樹脂被覆金属板の製造方法 |
EP3473436B1 (en) | 2016-06-17 | 2022-05-04 | JFE Steel Corporation | Laminate metal plate for metal container lid and method for manufacturing same |
JP2018140542A (ja) * | 2017-02-28 | 2018-09-13 | 北海製罐株式会社 | 缶詰用缶蓋 |
MX2022001057A (es) * | 2019-07-31 | 2022-02-14 | Jfe Steel Corp | Lamina metalica recubierta con resina para contenedor. |
WO2024053203A1 (ja) * | 2022-09-09 | 2024-03-14 | Jfeスチール株式会社 | 容器用樹脂被覆金属板およびその製造方法 |
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WO2015125184A1 (ja) * | 2014-02-21 | 2015-08-27 | Jfeスチール株式会社 | 容器用樹脂被覆金属板およびその製造方法 |
CN106029511A (zh) * | 2014-02-21 | 2016-10-12 | 杰富意钢铁株式会社 | 容器用树脂被覆金属板和其制造方法 |
US9993998B2 (en) | 2014-02-21 | 2018-06-12 | Jfe Steel Corporation | Resin-coated metal sheet for containers and method for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
EP1625934A1 (en) | 2006-02-15 |
EP1625934A4 (en) | 2009-08-26 |
US20070036995A1 (en) | 2007-02-15 |
JP2004345232A (ja) | 2004-12-09 |
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