WO2005046989A1 - 多層樹脂フィルム、樹脂被覆金属板、多層樹脂フィルムの製造方法、および樹脂被覆金属板の製造方法 - Google Patents
多層樹脂フィルム、樹脂被覆金属板、多層樹脂フィルムの製造方法、および樹脂被覆金属板の製造方法 Download PDFInfo
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
-
- 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
- B32B2307/538—Roughness
-
- 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
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- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- 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]
-
- 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
Definitions
- Multilayer resin film resin-coated metal plate, method for producing multilayer resin film, and method for producing resin-coated metal plate
- the present invention relates to a multilayer resin film composed of a plurality of resin layers having different melt tensions and melt viscosities and having small surface irregularities, a resin-coated metal plate coated with the multilayer resin film, and a multilayer resin film. And a method for producing a resin-coated metal plate.
- resin films having different physical properties are used as a multilayer as described above, resins having different melting points and different melt viscosities when heated and melted at the same temperature are heated and melted, and co-extruded to form a film.
- melt viscosity of the resin with the higher melting temperature is higher.
- melt viscosity of the resin with the lower melting temperature is often lower. .
- the resin obtained by heating and melting such resin at the same temperature is multilayered and laminated.
- Thickness unevenness that occurs on the film surface is called a flow mark, and is not only visually defective, but also involves drawing or drawing and ironing, and neck-in (small diameter) processing of the opening at the top of the can. Uniform processing is not possible during the implementation, which may cause damage.
- Patent Document 1 discloses a method for preventing flow marks from occurring by selecting and using a resin that has a small difference in melting point or viscosity during heating and melting between each other.
- a resin that has a small difference in melting point or viscosity during heating and melting between each other.
- it is often necessary to select resins whose melting points and viscosities upon heating and melting are greatly different from each other. It can only be used for limited applications.
- Patent Document 2 discloses a feed block method in which a plurality of resin layers that are melted by heating are merged in front of a T die, a feed block, and a T die that is connected to the feed block to form a multilayer resin film. Discloses a method for controlling the temperature of a heater provided on a feed block in a multilayer extrusion molding method in which a defect phenomenon such as a shift (flow mark) at a lamination boundary surface that merges into a multilayer is reduced. .
- Fig. 2 shows an outline of an example of the multilayer extrusion molding apparatus.
- the multilayer extrusion apparatus comprises a feed block 10 having a plurality of manifolds 14a-14g, and a T-die 12 connected to the feed block 10 below the junction 16 of the resin from the manifolds 14a 14g. Have been. Heaters 20b, 22b, thermometer 28b, etc. around the junction of the resin passages from each of the manifolds 14a-14g, for example, at the resin passage on the outlet side of the manifold 14b (for simplicity of explanation, only the manifold 14b is Reference), and each molten resin material supplied from each manifold By controlling the temperature / viscosity of the raw material and making the temperature / viscosity uniform, the failure phenomenon at the lamination interface to be joined to the multilayer resin is reduced.
- the inside of the T-die into which the resin flows after being merged into a multilayer has a single-layer structure, and the merged and multilayered resin flows from the junction 16 to the exit opening 34 of the die lip 32. Since the T-die is only heated as a whole while the molten resin travels over that distance, the different heating of each resin layer immediately after the confluence occurs when the resin layers have the same viscosity. It is impossible to maintain the temperature with the temperature difference, and the melt viscosity of each resin layer cannot be kept the same at the outlet opening 34 due to a change in the heating temperature of each resin layer. It is difficult to prevent the occurrence of flow marks.
- the method according to this publication can be applied only to a limited use, such as using a resin having the same melting viscosity and a difference in melting point that is not so different. Further, even in the methods disclosed in these publications, when the tension of the molten resin is small, the film forming speed cannot be increased.
- Patent Document 1 Japanese Patent Application Laid-Open No. 08-290532
- Patent Document 2 Japanese Patent Application Laid-Open No. 11-309770
- the present invention relates to a multilayer film composed of a plurality of resin layers having different melt viscosities, a multilayer resin film having small surface irregularities, a resin-coated metal plate obtained by laminating the multilayer resin film on a metal plate, And a method for producing a multilayer resin film by laminating a plurality of molten resins having different melt viscosities at a high speed without forming irregularities on the film surface, and laminating the multilayer resin film on a metal plate.
- An object of the present invention is to provide a method for producing a resin-coated metal plate.
- the present invention relates to a manufacturing method capable of high-speed production with a film forming speed of a resin film of 100 m / min or more.
- the multilayer resin film of the present invention is a multilayer resin film composed of two or more types of resin, at least one of which is colored.
- a non-oriented multilayer resin film containing a component (claim 1), the multilayer resin film of the above (claim 1), the difference of the concave convex in a multilayer resin film surface 5. is below 0 beta m ( It is characterized by claim 2).
- the resin of the layer containing the coloring component has a melt tension Tm at an extrusion temperature of 0.5 g ⁇ Tm ⁇ l.Og and a thickness of the entire thickness. It is characterized by being at least one-half (Claim 3) or Tm ⁇ l.Og and the thickness is at least one-third of the total thickness (Claim 4).
- the resin of the layer containing no coloring component has a melt tension at the extrusion temperature of lg or more and a thickness of 1/3 or more of the total thickness ( Claim 5) is characterized.
- a resin-coated metal plate of the present invention is a resin-coated metal plate obtained by laminating the multilayer resin film of any one of the above (claims 15 to 15) on a metal plate.
- the method for producing a multilayer resin film of the present invention is an extruder in which two or more resins including at least one resin containing a coloring component are continuously provided on each manifold using a multi-manifold die, By controlling the temperature of each manifold and the die section adjacent to each manifold, the melt temperature is high, the extruder through which the resin passes, the manifold, and the temperature of the die section adjacent to the manifold are melted.
- the melting tension of the resin containing the coloring component Tm is 0.5 g ⁇ Tm ⁇ l.Og and the thickness is at least half of the total thickness (Claim 7).
- Tm ⁇ l.Og and the thickness is at least one-third of the total thickness, and the respective molten resins are laminated to form a multilayer film. It is a manufacturing method (Claim 8).
- the method for producing a multilayer resin film of the present invention is an extruder in which two or more resins including at least one resin containing a coloring component are continuously provided on each manifold using a multi-manifold die, It controls the temperature of each manifold and the portion of the die adjacent to each Keep the temperature of the extruder, manifold, and die adjacent to the manifold at a higher temperature than the extruder, manifold, and die adjacent to the manifold through which the low melt viscosity resin passes.
- the method for producing a resin-coated metal sheet according to the present invention includes an extruder in which two or more types of resins including at least one type of resin containing a coloring component are continuously provided on each manifold using a multi-manifold die. Control the temperature of each of the manifolds and the portion of the die adjacent to each manifold, and determine the temperature of the extruder, manifold, and the portion of the die adjacent to the manifold through which the high melt viscosity resin passes. Keeping the extruder, manifold, and die adjacent to the manifold above the temperature through which the lower resin passes, the difference in melt viscosity between adjacent resin layers is 3000 poise at a shear rate of 20-500 seconds- 1.
- Tm is 0.5g ⁇ Tm ⁇ l.Og and the thickness is more than half of the total thickness (Claim 10). Or, Tm ⁇ l.Og and the thickness should be more than 1/3 of the total thickness (Claim 11).
- the method for producing a resin-coated metal sheet according to the present invention includes an extruder in which two or more types of resins including at least one type of resin containing a coloring component are continuously provided on each manifold using a multi-manifold die. Control the temperature of each of the manifolds and the portion of the die adjacent to each manifold, and determine the temperature of the extruder, manifold, and the portion of the die adjacent to the manifold through which the high melt viscosity resin passes.
- FIG. 1 is a schematic view showing one example of a method for producing a multilayer film of the present invention.
- FIG. 2 is a schematic view showing one example of a conventional method for producing a multilayer film.
- 1 is a multi-manifold die
- 2a and 2b are manifolds
- 3a, 3b, 4a and 4b are heaters
- 5 is a lip land
- 6a and 6b are extruders
- 7 is a discharger.
- An outlet, 8 a multilayer resin film
- 9 a cooling roll
- a 12-roll winding means 14a, 14b, 14c, 14d, 14e, 14f and 14gi.
- 16 is a junction
- 20b and 22b are heaters
- 28 is a thermometer
- 32 is a die lip
- 34 is an outlet opening.
- FIG. 1 is a schematic view showing an example of a method for producing a multilayer film of the present invention comprising a plurality of resin layers having different melt viscosities.
- the multi-manifold die 1 having two manifolds 2a and 2b is provided with an extruder 6a for extruding a resin having a higher melt viscosity by heating and melting, and an extruder 6b for heating and melting a resin having a lower melt viscosity and extruding the resin.
- the manifolds 2a and 2b are united below the multi-manifold die 1 to form a rip land 5, and are connected to a discharge port 7 provided at the lowermost die lip of the multi-manifold die 1.
- the multi-manifold die 1 includes a heater 11a for heating the side of the die body through which the resin with the higher melt viscosity passes, and a heater for heating the side through which the resin with the lower melt viscosity passes.
- heaters 3a and 3b provided adjacent to the respective manifolds for heating manifolds 2a and 2b, and heaters 4a and 4b are provided with power S
- extruder 6a and extruder 6b and multi-manifold Heaters 10a and 10b are provided for heating the resin passages connecting 2a and 2b, respectively.
- Temperature measuring means such as a thermocouple (not shown) is provided in the vicinity of each of these heaters. The heating temperature is controlled to be constant while measuring the temperature of these parts, and the temperature of each heater is individually adjusted so that the difference in viscosity between the heated molten resins in the manifolds 2a and 2b is within a certain range. Control.
- the two types of resin melted by the extruder 6a and the extruder 6b and having a difference in melt viscosity at the same heating and melting temperature of 3000 to 20000 poise at a shear rate of 20 to 500 seconds_1 are each multi- Through the manifolds 2a and 2b provided in the manifold die 1, they are stacked at the entrance of the lip land 5 united below the multi-manifold die 1, and from the discharge port 7 provided in the die lip at the bottom of the die 1,
- the multilayer resin film 8 is discharged onto a cooling roll 9 configured to circulate a coolant such as water in the interior provided below the discharge port 7 and is cooled and solidified, and is continuously wound into a coil shape. It is wound up by winding means 12 such as a coiler.
- the multilayer resin film of the present invention can be formed as follows using the multilayer resin film manufacturing apparatus configured as described above.
- the applicable resin film is not particularly limited, but for example, the following polyester resins can be applied.
- the acid components from which the polyester resin is derived include terephthalic acid, isophthalic acid, orthophthalic acid, P-oxyethoxybenzoic acid, naphthalene-1,6-dicarboxylic acid, diphenoxetane-1,4,4'-dicarboxylic acid, Dibasic aromatic dicarboxylic acids such as 5-sodium sulfoisophthalic acid; alicyclic dicarboxylic acids such as hexahydroterephthalic acid and cyclohexanediacetic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid and dimer acid; Trimetic acid, pyromellitic acid, hemmellitic acid, 1,1,2,2-ethanetetracarboxylic acid, 1,1,2-ethanetricarboxylic acid, 1,3,5-pentanetricarboxylic acid,
- the alcohol components from which the polyester is derived include ethylene glycol, propylene glycol, 1,4-butanediol, neopentyl glycolone, 1,6 hexylene glycolone, diethylene glycolone, triethylene glycolone, and cyclohexanediene.
- Diols such as methanol, pentaerythritol, glycerol, and trimethylonoleprono. 1,2,6-hexane trinole, sonorebi, tonore, 1,1,4,4-tetra
- polyhydric alcohols such as xane.
- these can be used alone or in combination of two or more.
- coloring component used in the multilayer resin film of the present invention all the coloring agents conventionally used for coloring resin films can be used.For example, the following can be exemplified.
- Black pigments carbon black, magnetite, Acetylene black, Run black, Anili Yellow pigments: yellow lead, zinc yellow, cadmium yellow, yellow iron oxide,
- Nickel Retitanium Yellow Nickel Retitanium Yellow, Nebu Nores Yellow, Naphtho Noreyello S, Hansa Yellow I G, Hansa Yellow 10G, Benzijin Yellow G, Benzijin Yellow GR, Quinoline Yellow Lake, Permanent Yellow NCG, Tartrazine Lake.
- Orange pigments red-mouthed graphite, molybdenum orange, permanent orange GTR, pyrazolone orange, vanorecan orange, induslen brilliant orange RK :, benzidine orange 0, induslen brilliant orange GK :.
- Red pigment Bengala, Cadmium Red, Lead Tan, Cadmium Mercury Sulfide, Permanent Red 4R, Risor Red, Pyrazolone Red, Watching Red Calcium Salt, Lake Red D, Brilliant Carmine 6B, Eosin Lake, Rhodamine Lake B, Alizarin Lake, Brilliant Carmine 3B .
- Purple pigments manganese purple, fast violet B, methyl violet lake.
- Blue pigments ultramarine, navy blue, cobalt blue, alkali blue lake, Victoria blue lake, phthalocyanine blue, metal-free phthalocyanine blue, phthalocyanine blue partially chlorinated product, fast sky blue, indaslen blue BC.
- Green pigments chrome green, chromium oxide, pigment green B, malachite green lake, huanal yellow green G.
- White pigment Titanium dioxide of noretyl type or anatase type, zinc white, dalos white, pearlite, sulphate-precipitable perlite, calcium carbonate, gypsum, precipitable silica, air port gil, talc, calcined or unfired clay, barium carbonate , Alumina white, synthetic or natural My power, synthetic calcium silicate, magnesium carbonate.
- the particle size of the colorant is generally in the range of 0.05 to 2 ⁇ m, preferably 0.1 to 0.5 ⁇ m. As a result, it is possible to have both excellent curling properties and hiding power.
- a particularly suitable coloring agent for the purposes of the present invention is titanium dioxide, which is white and has great hiding power.
- the amount of the coloring agent to be mixed with the resin can be appropriately determined depending on the application in which there is no particular limitation as long as the melt viscosity and the melt tension of the coloring component-containing resin can be set within the above-mentioned ranges.
- the difference between the melt viscosities of the respective resins due to the heaters 10a and 10b, the heaters 11a and 11 lb, the heaters 3a and 3b, and the heaters 4a and 4b was 20 to 500 seconds.
- a temperature measuring means such as a thermocouple provided near each heater so that the shearing speed at 1 is 3000 poise or less.
- the molten resin having a difference in melt viscosity of 3000 poise or less at a shear rate of 20 to 500 seconds to 11 was used as the lip land 5 in the united portion of the manifolds 2a and 2b. It is laminated at the inlet, discharged from the discharge port 7 onto the cooling roll 9 and solidified to form a multilayer (two-layer) film 8, which contains coloring components at the extrusion temperature, especially when the molten resin is extruded at a high speed.
- melt tension of the extruded resin is less than 0.5 g, or the melt tension of the resin containing no coloring component is less than lg, the extruded film-shaped molten resin will pulsate and the thickness in the longitudinal direction will be uneven. Ears are generated in the width direction.
- Tm melt tension
- Og for the resin containing the coloring component this melt tension is 0.5 g ⁇ Tm ⁇ l for the total thickness of the extruded multilayer film.
- Og resin layer is more than half or Tm ⁇ l.Og resin is used, and the melt tension is 0.5g ⁇ Tm ⁇ l.Og for the total thickness of extruded multilayer film.
- a resin that does not contain a coloring component has a melt tension of lg or more, and the resin of which the melt tension is lg or more with respect to the total thickness of the extruded multilayer film is used.
- the difference between the melt viscosities is adjusted, the discharge amount is adjusted using at least one force of the resin, and a resin containing one kind of the coloring component.
- the multilayer (two-layer) film 8 ejected and solidified is wound up by winding means 12.
- the multilayer resin film of the present invention is manufactured.
- the difference in unevenness on the surface of the multilayer resin film is preferably 5 ⁇ m or less. If the difference in unevenness exceeds 5 ⁇ m, not only is it visually inferior, but also a multilayer resin film is laminated and coated on the metal plate to form a multilayer resin film-coated metal plate. Performing drawing or drawing and ironing to form into a can, peeling of the resin film from the metal plate when performing neck-in processing of the opening at the top of the can, and locally varying degrees of processing As a result, it cannot be formed into a can body due to crushing in drawing or drawing and ironing, or crushing in the neck inker.
- the multilayer resin film of the present invention is obtained by directly discharging a multilayer resin heated and melted from a discharge portion of a die lip onto a metal plate in a film shape by using the above-described method for manufacturing a multilayer resin film, and laminating and coating the same. It can be a multi-layer resin film-coated metal plate. Further, a multilayer resin film produced by using the above-described method for producing a multilayer resin film may be laminated on a metal plate directly or via an adhesive using a known lamination method to form a multilayer resin film-coated metal plate. You can also.
- the difference in unevenness on the surface of the multilayer resin film after the lamination is 5 ⁇ m or less for the same reason as described above.
- Permeation resistance to a polyester resin excellent A ethylene terephthalate / ethylene isophthalate sauce over preparative copolymer (ethylene isophthalate 10 mole 0/0), mp: 220 ° C, intrinsic viscosity: 0. 85, 2 60 ° C , Shearing speed: 100 seconds- 1 Melt viscosity at 1 : 7,500 poise, melt tension: 0.7 g) (hereinafter simply referred to as resin A.
- the melt tension is determined using Capirograph 3A (trade name, manufactured by Toyo Seiki Co., Ltd.).
- the molten resin A and the molten resin B are merged at the merged portion of the manifold and laminated, and the speed is 70 m / min from the merged point of the manifold via the lip land. And discharged from the discharge port as a two-layer resin However, the ejected resin suffered from swaying and pulsation, and the film thickness accuracy in the longitudinal direction became 7 ⁇ or more. After discharging, the liquid was dropped on a cooling roll in which water was circulated inside provided below the discharge port, cooled and solidified, and wound around a coiler as a two-layer resin film having a width of about lm.
- resin A which was modified with a polyester resin C (ethylene terephthalate Z ethylene isophthalate copolymer (ethylene isophthalate 15 mole 0/0) of trimellitic acid (0.3 mole 0/0), mp: 215 ° C, intrinsic viscosity: 0.8, temperature: 260 ° C, shear rate: 100 sec- 1 Melt viscosity at -1 : 8000 poise, melt tension: 1.2 g) (hereinafter simply referred to as resin C), colored Resin with 27% by weight of Ti ⁇ added at 260 ° C (shear rate: 100 sec- 1)
- resin C colored Resin with 27% by weight of Ti ⁇ added at 260 ° C (shear rate: 100 sec- 1)
- the molten resin A and the molten resin C were guided by adjusting the discharge amount so that the ratio of the thickness was 1: 3 and the thickness of the two-layer resin film was 16 / m.
- a heater adjacent to the side where the molten resin A passes through the multi-manifold die and the resin passage through which the molten resin A passes is heated to 260 ° C.
- Each of the manifolds was preheated to 250 ° C with a heater adjacent to each, and molten resin A and molten resin C were passed through the respective manifolds.
- the resin temperature immediately before the T-die and the resin viscosity at a shear rate of 100 sec- 1 are: Resin A: 265 ° C, about 6500 poise, Resin C + Ti ⁇ : 250 ° C, about 5000 poise. In this way, molten resin A
- the molten resin A and the molten resin C were united at the merged portion of the manifold and laminated, and then discharged from the merged point of the manifold through the lip land at a speed of 100 mZ as a discharge layer and a two-layer resin.
- the ejected resin did not pulsate, and the ear generated a force in the width direction of the film.
- the liquid was dropped on a cooling roll in which water was circulated inside the discharge port and solidified by cooling, and wound around a coiler as a two-layer resin film having a width of about lm.
- Example 2 Resin obtained by adding 27 wt% of TiO as a coloring component to the above resin B (260 ° C, shear rate: 1
- melt viscosity at 00 seconds 1 : 4000 poise, melt tension: 0.4 g) and resin C were heated using an extruder at 260 ° C for resin B (27 wt% TiO added) and 270 ° C for resin C, respectively. Then melt
- each manifold of a multi-manifold nozzle die provided with a heater for individually controlling the temperature adjacent to each of the manifolds is provided with two manifolds.
- the ratio of the thickness of resin C to the thickness of resin B (containing 27 wt% TiO) after forming into a two-layer film is 1: 2, and the thickness of the two-layer resin film is 16 ⁇
- the discharge amount was adjusted to obtain molten resin C and molten resin.
- Adjacent heaters at 260 ° C for the resin passage and manifold through which the molten resin C passes through the multi-manifold die and the molten resin ⁇ , and the resin through which the molten resin C passes and the multi-manifold die through the molten resin B The passages and manifolds were preheated to 260 ° C with heaters adjacent to each other, and molten resin C and molten resin B were passed through each manifold.
- the molten resin C and the molten resin B are heated as described above, the molten resin C and the molten resin B are combined and laminated at the united portion of the manifold, and the combined force of the manifold is 100 m / min through the lip land.
- the resin was discharged from the discharge port as a two-layer resin, the discharged resin did not pulsate, and no ear was formed in the width direction of the film.
- the liquid was dropped on a cooling roll in which water was circulated below the discharge port, solidified by cooling, and wound around a coiler as a two-layer resin film having a width of about lm.
- the thickness of the resin film of Examples 1-2 and Comparative Example 1 was continuously measured in the full width direction (approximately lm) every lm (16 locations) at 15m in the longitudinal direction of the resin film 5 minutes after the start of film formation. The thickness was measured and the difference between the maximum thickness and the minimum thickness of all the measured values in all 16 width directions was determined as thickness mura. Table 1 shows the evaluation results.
- the melt tension of the resin containing the coloring component of the film containing at least one type of coloring component: Tm is 0.5g ⁇ Tm ⁇ l.Og, and the thickness is the total thickness.
- the film has a melt tension of at least lg and a thickness of not more than one-half of Tm ⁇ l.Og and no more than one-third of the total thickness, but not containing mosquito or coloring components.
- the resin-coated metal plate obtained by laminating the multilayer resin film of the present invention on a metal plate is suitable for forming into a drawn can or drawn and ironed can. Even when neck-in processing of the opening is performed, the resin film does not peel off from the metal plate and there is no locally varying degree of processing. It can be formed into a can body stably without crashing or crashing in neck-in processing.
- two or more resins containing at least one resin containing a coloring component and having a difference in melt viscosity of 3000-20000 poise at a shear rate of 20-500 seconds-1 at the same heating and melting temperature By using a multi-manifold die, the temperature of each extruder continuously provided in each manifold, each manifold, and the portion of the die adjacent to each manifold is controlled to increase the melt viscosity. The temperature of the extruder, the manifold through which the resin passes, and the portion of the die adjacent to the manifold is adjusted by the temperature of the extruder, the manifold, and the die adjacent to the manifold, through which the low melt viscosity resin passes.
- the melt tension of the resin containing the coloring component Tm 0.5g ⁇ Tm ⁇ l.Og and thickness more than 1/2 of the total thickness, or Tm ⁇ l.0g and thickness more than 1/3 of the total thickness, or
- the thickness of the resin not containing a coloring component having a melt tension of lg or more is set to be not less than one third of the total thickness, and the respective molten resins are laminated to form a multilayer film.
- the multilayer film obtained in this way has a difference in unevenness on the surface of 5 ⁇ m or less, so that not only is it excellent in visual smoothness but also in a resin film as in an ordinary multilayer film. Since no stress based on melt viscosity is generated, when a multilayer resin film is laminated and coated on a metal plate to form a multilayer resin film-coated metal plate, even if the resin film has flaws, the resin film is rolled up from the metal plate It does not peel off.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20040772048 EP1690677B1 (en) | 2003-11-17 | 2004-08-24 | Method for producing a multi-layer resin film and method for producing a metal sheet coated with resin |
US10/576,186 US20070071944A1 (en) | 2003-11-17 | 2004-08-24 | Multilayer resin film, a resin-coated metal sheet, a method of manufacturing a multilayer resin film and a method of manufacturing a resin-coated metal sheet |
US12/820,853 US20100319842A1 (en) | 2003-11-17 | 2010-06-22 | Multilayer resin film, a resin-coated metal sheet, a method of manufacturing a multilayer resin film and a method of manufacturing a resin-coated metal sheet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-386215 | 2003-11-17 | ||
JP2003386215A JP2005144876A (ja) | 2003-11-17 | 2003-11-17 | 多層樹脂フィルム、樹脂被覆金属板、多層樹脂フィルムの製造方法、および樹脂被覆金属板の製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/820,853 Division US20100319842A1 (en) | 2003-11-17 | 2010-06-22 | Multilayer resin film, a resin-coated metal sheet, a method of manufacturing a multilayer resin film and a method of manufacturing a resin-coated metal sheet |
Publications (1)
Publication Number | Publication Date |
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WO2005046989A1 true WO2005046989A1 (ja) | 2005-05-26 |
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PCT/JP2004/012087 WO2005046989A1 (ja) | 2003-11-17 | 2004-08-24 | 多層樹脂フィルム、樹脂被覆金属板、多層樹脂フィルムの製造方法、および樹脂被覆金属板の製造方法 |
Country Status (4)
Country | Link |
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US (2) | US20070071944A1 (ja) |
EP (1) | EP1690677B1 (ja) |
JP (1) | JP2005144876A (ja) |
WO (1) | WO2005046989A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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BRPI0717786A2 (pt) * | 2006-10-16 | 2013-10-29 | Valspar Sourcing Inc | Processos para revestir um substrato com um revestimento aderente e para aplicar um revestimento de multicamadas adesivo em um substrato, e, artigo revestido |
WO2008048934A2 (en) * | 2006-10-16 | 2008-04-24 | Valspar Sourcing, Inc. | Multilayer thermoplastic film |
MX2010010110A (es) | 2008-03-19 | 2010-10-04 | Constr Res & Tech Gmbh | Metodos operativos semi-continuos para producir copolimeros. |
JP2014188991A (ja) * | 2013-03-28 | 2014-10-06 | Toppan Printing Co Ltd | 多層押出成形装置 |
CN103921583B (zh) * | 2014-04-09 | 2016-04-20 | 库尔兹压烫科技(合肥)有限公司 | 高效热烫印箔 |
US9586385B2 (en) * | 2014-08-27 | 2017-03-07 | 3M Innovative Properties Company | Inorganic multilayer lamination transfer films |
TW201618961A (zh) | 2014-08-27 | 2016-06-01 | 3M新設資產公司 | 電多層層壓轉印膜 |
CN107405881B (zh) * | 2015-03-26 | 2019-07-09 | 杰富意钢铁株式会社 | 容器用树脂被覆金属板 |
US10815347B2 (en) * | 2016-08-11 | 2020-10-27 | Toray Plastics (America), Inc. | Blush-resistant film including pigments |
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JPH1086308A (ja) * | 1996-07-22 | 1998-04-07 | Kishimoto Akira | 積層体及びそれを用いた容器 |
JPH11309770A (ja) * | 1998-04-28 | 1999-11-09 | Toshiba Mach Co Ltd | 多層押出成形方法および装置 |
JP2000071388A (ja) * | 1998-09-01 | 2000-03-07 | Tsutsumi Yotaro | 製缶用積層体及びシームレス缶 |
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JP2004299390A (ja) * | 2003-03-19 | 2004-10-28 | Toyo Seikan Kaisha Ltd | ラミネート用多層フィルム、ラミネート材、缶耐及び缶蓋 |
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JPS54124067A (en) * | 1978-03-20 | 1979-09-26 | Mitsubishi Heavy Ind Ltd | Extrusion die |
JPS63120629A (ja) * | 1986-11-11 | 1988-05-25 | Toray Ind Inc | 複合押出ダイ |
JPH05112755A (ja) * | 1991-10-22 | 1993-05-07 | Toyobo Co Ltd | 2ピース缶用被覆金属板用のコーテイング剤組成物及びそれを用いた被覆金属板 |
KR100312002B1 (ko) * | 1992-12-04 | 2001-12-28 | 히라이 가쯔히꼬 | 열라미네이트용폴리에스테르필름 |
MY115854A (en) * | 1995-10-02 | 2003-09-30 | Toray Industries | A biaxially oriented polyester film to be formed into containers |
JP3146973B2 (ja) * | 1996-05-01 | 2001-03-19 | 東洋製罐株式会社 | ラミネート板及びこれを用いた製缶方法 |
US6099924A (en) * | 1996-07-22 | 2000-08-08 | Toyo Seikan Daisha, Ltd. | Laminate and container made of the same |
JPH11207908A (ja) * | 1998-01-23 | 1999-08-03 | Unitika Ltd | 金属ラミネート用白色フィルム |
US6562276B1 (en) * | 1998-08-20 | 2003-05-13 | Eastman Chemical Company | Process for forming a multilayer, coinjected article |
JP2000127227A (ja) * | 1998-10-29 | 2000-05-09 | Teijin Ltd | フィルムの押出装置及び製造方法 |
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2003
- 2003-11-17 JP JP2003386215A patent/JP2005144876A/ja active Pending
-
2004
- 2004-08-24 US US10/576,186 patent/US20070071944A1/en not_active Abandoned
- 2004-08-24 WO PCT/JP2004/012087 patent/WO2005046989A1/ja active Application Filing
- 2004-08-24 EP EP20040772048 patent/EP1690677B1/en active Active
-
2010
- 2010-06-22 US US12/820,853 patent/US20100319842A1/en not_active Abandoned
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JPH1086308A (ja) * | 1996-07-22 | 1998-04-07 | Kishimoto Akira | 積層体及びそれを用いた容器 |
JPH11309770A (ja) * | 1998-04-28 | 1999-11-09 | Toshiba Mach Co Ltd | 多層押出成形方法および装置 |
JP2000071388A (ja) * | 1998-09-01 | 2000-03-07 | Tsutsumi Yotaro | 製缶用積層体及びシームレス缶 |
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Also Published As
Publication number | Publication date |
---|---|
JP2005144876A (ja) | 2005-06-09 |
US20070071944A1 (en) | 2007-03-29 |
US20100319842A1 (en) | 2010-12-23 |
EP1690677A1 (en) | 2006-08-16 |
EP1690677A4 (en) | 2009-09-09 |
EP1690677B1 (en) | 2011-10-26 |
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