WO2005082597A1 - 複層の無延伸フィルムの製造方法、複層樹脂被覆金属板の製造方法、および複層の無延伸フィルムの製造装置 - Google Patents
複層の無延伸フィルムの製造方法、複層樹脂被覆金属板の製造方法、および複層の無延伸フィルムの製造装置 Download PDFInfo
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- WO2005082597A1 WO2005082597A1 PCT/JP2005/003124 JP2005003124W WO2005082597A1 WO 2005082597 A1 WO2005082597 A1 WO 2005082597A1 JP 2005003124 W JP2005003124 W JP 2005003124W WO 2005082597 A1 WO2005082597 A1 WO 2005082597A1
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- resin
- thermoplastic resin
- thermoplastic
- multilayer
- film
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Classifications
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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
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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
- B32B27/06—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
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
- B29C48/495—Feed-blocks
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
Definitions
- the present invention relates to a method for producing a non-stretched film comprising a multilayer thermoplastic resin, a method for producing a multilayer resin-coated metal sheet obtained by laminating and coating a multilayer thermoplastic resin, and a method for producing the same.
- the present invention relates to an apparatus for producing an unstretched film made of a thermoplastic resin of a layer.
- a method for producing a multilayer film composed of a plurality of thermoplastic resins a plurality of heated and melted resins are combined by a feed block before flowing into a T-die, and are widened by a single manifold.
- a feed block system that discharges from the die lip of the T-die.
- a plurality of manifolds are provided in the T-die, and each of the heated and melted resins is led to each of the manifolds, expanded, and then merged.
- a film is formed by using a shifter of a multi-merge method that discharges from a die lip of a T-die.
- Patent Document 1 As a method for reducing the economic loss of film trimming waste that cannot be reused, a method described in Patent Document 1 has been proposed. This method relates to a film with high quality requirements, such as a biaxially oriented polypropylene film used in the manufacture of capacitors, which also has the strength of an electrically insulating film, where propylene polymer B is heated and melted in a first extruder, When propylene polymer A is heated and melted in extruder 2 and extruded together from a flat sheet die, propylene polymer A is supplied to both sides of propylene polymer B.
- a film with high quality requirements such as a biaxially oriented polypropylene film used in the manufacture of capacitors, which also has the strength of an electrically insulating film, where propylene polymer B is heated and melted in a first extruder, When propylene polymer A is heated and melted in extruder 2 and extruded together from a flat sheet die, propylene polymer A
- the propylene polymer B After extruding, biaxially stretching, and cutting off the propylene polymer A on both sides of the propylene polymer B, the propylene polymer B, which has high quality requirements, is used as effectively as possible to trim the film. This is a method to prevent the generation of waste.
- the properties of propylene polymer B used are adjusted to those of propylene polymer A with respect to the properties of propylene polymer B such as molecular weight, residual ash, melt flow index, and melting point. It must be set, the application is limited, and it cannot be applied to the film formation of various general-purpose thermoplastic resins.
- Patent Document 1 Japanese Patent Application Laid-Open No. 08-336884
- the present invention provides a method for producing a multi-layer unstretched film for the purpose of minimizing cost by minimizing the portion discarded as a thick film portion after film formation, and a method for producing a multi-layer resin-coated metal plate.
- a manufacturing method, and an apparatus for manufacturing a multilayer unstretched film are provided.
- the method for producing a multilayer unstretched film of the present invention that solves the above-mentioned problems includes heating and melting a plurality of thermoplastic resins separately, and heating and melting each of the thermoplastic resins.
- each of the thermoplastic resins intended to be formed as a multi-layer unstretched film is used.
- Another thermoplastic resin other than each of the above thermoplastic resins is separately heated and melted, and the other thermoplastic resin is guided to both sides of each of the above thermoplastic resins immediately before widening in each manifold.
- thermoplastic resin and the another thermoplastic resin are each heated and melted by a separate extruder, and each thermoplastic resin is melted.
- Each of the extruders for heating the fat is supplied to each of the pipes for supplying the molten resin, and holes are formed on both lower sides of each of the pipes for supplying the thermoplastic resin.
- the above-mentioned heat-melting method is applied to each of a plurality of feed blocks in which respective ends of a pipe for supplying another thermoplastic resin are connected to respective holes formed on both sides of the pipe. After supplying the thermoplastic resin and the another thermoplastic resin, respectively, and then expanding the width in each of the plurality of manifolds connected to the respective feed blocks, the heat of the multiple layers is supplied.
- the ⁇ die In the method for producing a multi-layer unstretched film according to the above (Claim 1 or 2), the heat in each of the feed blocks may be discharged.
- the cross section of the lower part of each pipe for supplying the plastic resin is rectangular, and the cross section of each of the holes drilled on both sides of the lower part of each pipe is rectangular (Claim 3).
- thermoplastic resin of the multilayer and the another thermoplastic resin are discharged from a die lip of the T die. In doing so, the another thermoplastic resin is formed into a non-stretched film of the multilayer so that only the portion inevitably thicker than the thickness of the thermoplastic resin of the multilayer is formed. (Claim 4)
- the difference between the melt viscosities of the thermoplastic resin and the another thermoplastic resin is 20-500 seconds- 1. At a shear rate of not more than 3000 poise (Claim 5).
- thermoplastic resin used as the another thermoplastic resin (Claim 6).
- a plurality of thermoplastic resins are heated and melted, and each of the heated and melted thermoplastic resins is widened in each of the manifolds and then joined. After extrusion into a film using the multi-fold method, In the method of manufacturing a multi-layer resin-coated metal plate which is discharged onto a metal plate of a die and laminated and coated, the heat constituting the multi-layer resin for the purpose of laminating and coating the metal plate is provided.
- thermoplastic resins and another thermoplastic resin other than the above-mentioned thermoplastic resins are separately calo-heat-melted, and immediately before being widened in each manifold, the above-mentioned thermoplastic resins are placed on both sides of each of the thermoplastic resins.
- the other thermoplastic resin is introduced, the other thermoplastic resin is present at both ends of each thermoplastic resin, and the width of the portion of the multilayer thermoplastic resin is the metal plate. Is discharged onto the metal plate so as to be larger than the width of the resin plate, and only the thermoplastic resin portion of the multilayer is coated and laminated on the metal plate to form a resin-coated metal plate.
- a multi-layered resin-coated metal plate characterized by cutting and removing the resin portion protruding from both ends of the metal plate. (Claim 7)
- thermoplastic resin in the method for producing a multi-layer resin-coated metal sheet according to the above (claim 7), when discharging the multi-layer thermoplastic resin and the another thermoplastic resin from the die lip of the T die, The other thermoplastic resin is discharged onto the metal plate so that only the portion which is inevitably thicker than the thickness of the thermoplastic resin of the multilayer is formed on the metal plate (claim 8). Characterized by
- the difference between the melt viscosity of each of the thermoplastic resins and the other thermoplastic resin is 20- It is not more than 3000 poise at a shear rate of 500 seconds- 1 (Claim 9).
- the method for producing a multi-layer resin-coated metal sheet according to claim 7 to 9 is characterized in that a colored thermoplastic resin is used as the another thermoplastic resin (claim 10). Further, the apparatus for producing a multi-layer unstretched film of the present invention is characterized in that a plurality (n: n is a natural number, the same applies hereinafter) of a plurality of thermoplastic resins are separately heated and melted, and each of the heated and melted thermoplastic resins is heated.
- each layer of the multi-layer (n-layer) non-stretched film is formed.
- n Of the molten resin supply pipe (D1-Dn) and the above-mentioned respective molten resin supply pipes (C1-Cn).
- each of the plurality of thermoplastic resin blocks is supplied to each of the plurality of feed blocks.
- the cross section of the lower part is rectangular, and the cross section of the hole drilled on both sides of the lower part of each of the tubes is rectangular (claim 12).
- FIG. 1 is a schematic side view of an apparatus for producing a multilayer unstretched film according to the present invention.
- FIG. 2 is a schematic front view of an apparatus for producing a stretched film with or without a multilayer according to the present invention.
- FIG. 3 is a schematic diagram showing a state of a thermoplastic resin immediately before being extruded into a T-die and a state of being formed into a film.
- FIG. 4 is a schematic diagram showing a state of a thermoplastic resin immediately before being extruded into a T-die and a state of being formed into a film.
- FIG. 5 is a schematic diagram showing a state of a thermoplastic resin immediately before being extruded into a T-die and a state of being formed into a film.
- FIG. 6 is a schematic cross-sectional view showing a junction of resins in a feed block.
- FIG. 7 is a schematic diagram showing a state of a thermoplastic resin immediately before being extruded into a T-die and a state of being formed into a film.
- FIG. 8 is a schematic plan view showing a method for producing a resin-coated metal plate of the present invention.
- 1 is a feed block
- 2 is a T die
- 4 is a die lip
- 5 is a casting (cooling) roll
- 6 is a wrapping section
- 7 is a confluence section
- 10 is an unstretched film manufacturing apparatus.
- 15 is a cutting means
- 20 is an unstretched film
- 20A is a target thermoplastic resin
- 20B is another thermoplastic resin
- 30 is a metal plate
- 40 is a resin-coated metal plate
- Al A2, A3 and B are extruders
- Cl C2 and C3 are tubes for supplying molten resin
- C1R, C2R and C3R Is the connection with the T-die at the bottom of the tube for supplying molten resin
- Dl, D2 and D3 are the tubes for supplying molten resin
- Hl, H2 and H3 are the holes
- H1R, H2R and H3R are Ml
- M2 and M3 denote the sections immediately before the hole of the tube for supplying the molten resin, respectively.
- the resin to be formed into the intended multilayer unstretched film may be a polymer of an alkene having 2 to 8 carbon atoms or 1 alkene.
- the copolymers are low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, polybutene 1, polypentene 1, polyhexene 1, polyheptene 1, polyoctene 1, ethylene propylene copolymer, ethylene butene 1 copolymer, Polyolefin resin consisting of one or two or more ethylene-hexene copolymers, polyamide resin such as 6 nylon, 6,6 nylon, 6-10 nylon, etc., terephthalic acid, isophthalic acid, orthophthalic acid as acid component Acid, P- ⁇ -ethoxyethoxybenzoic acid, naphthalene 2,6-dicarboxylic acid, diphenoxetane 4,4-dicarbo Acid, dibasic aromatic dicarboxylic acids such as pentasodium sulfoisophthalic acid, alicyclic dicarboxylic acids such as hexahydroterephthalic acid, cyclo
- One or more polybasic acids! / And alcohol components such as ethylene glycol, propylene glycol, 1,4-butanediol, neopentyl glycol, 1,6-hexylene glycol, diethylene glycol, and triethylene.
- Gionoles such as glycol and cyclohexanedimethanol, pentaerythritol, glycerol, trimethylolpronon, 1,2,6-hexanetriol, sorbitol, 1,1,4,4-tetrakis (hydroxymethyl) cyclohexane
- a polyester resin composed of one or more of polyhydric alcohols such as xane and an alcohol having any power can be used.
- the melt viscosity of a target multilayered thermoplastic resin and a thermoplastic resin different from the target thermoplastic resin is adjusted to form a film.
- the resin composition of both is special However, any of the above resins can be used in combination as a target thermoplastic resin and a target thermoplastic resin coexisting at both ends.
- FIG. 1 is a schematic side view of a multilayer unstretched film manufacturing apparatus 10 of the present invention
- FIG. 2 is a schematic front view.
- the three thermoplastic resins intended to form a three-layer unstretched film 20 are heated and melted in extruders Al, A2 and A3, respectively, and extruders A
- the target thermoplastic resin Al, A2, and A3 connected to A2 and A3 are supplied to feed block 1 via pipes Cl, C2 and C3 for supplying molten resin.
- Another thermoplastic resin 20B coexisting at both ends of each of the three thermoplastic resins 20A is calo-heat-melted in extruder B, is connected to extruder B, and is branched in the middle of another thermoplastic resin 20B.
- the molten resin is supplied to the feed block 1 via pipes Dl, D2, and D3 for supplying the molten resin.
- Feed block 1 contains tubes Cl, C for supplying the molten resin of each of the three target thermoplastic resins 20A.
- C3 penetrates and is connected to T-die 2 at the bottom.
- Holes Hl, H2, H3 are drilled on the lower sides of C2, C3 and C3, respectively.
- Tubes Dl, D2, and D3 for supplying molten resin of another thermoplastic resin 20B are connected to 1, H2, and H3, respectively, so as to extend through the feed block 1.
- Each of the target thermoplastic resins 20A heated and melted by the extruders Al, A2, and A3 is supplied to the feed block 1 through pipes Cl, C2, and C3 for supplying the molten resin. It is extruded toward the T-die 2 connected to the lower part.
- Another thermoplastic resin 20B heated and melted by the extruder B is supplied to the feed block 1 through the molten resin supply pipes Dl, D2, and D3, and the molten resin supply pipes Cl, C2, Pipes Cl, C for supplying the desired thermoplastic resin from the holes Hl, H2, H3 drilled on both sides of the lower part of C3.
- thermoplastic resin B is extruded into C3, and thermoplastic resin B coexists at both ends of each of the three target thermoplastic resins 20A.
- target three thermoplastics The molten resin in which thermoplastic resin B coexists at both ends of each resin 20A is expanded by the manifolds Ml, M2, and M3 provided inside the T die 2, and then the die die of the T die 2 is opened. After being merged at a merging section 7 provided immediately above the die 4 and laminated into three layers, it is discharged as a non-stretched film 20 from a die lip 4 onto a casting roll 5 disposed below the T die 2.
- thermoplastic resin 20B which is thicker than thermoplastic resin 20A
- the tubes Cl, C2, C3 for supplying the molten resin and the tubes Dl, D2, D3 for supplying the molten resin are each a tube having a circular cross section.
- the tubes Cl, C2, C3 for supplying the molten resin and the tubes Dl, D2, D3 for supplying the molten resin are each a tube having a circular cross section.
- three target thermoplastic resins 20A and another thermoplastic resin 20B are present at both ends of the target three thermoplastic resins 20A in a cross-sectional shape as shown in FIGS. 3 to 5.
- FIG. 5 shows the three tubes of the desired thermoplastic resin 20A in feed block 1 for the supply of molten resin 20A, Cl, C2 and C3, and the tube Cl for the supply of molten resin.
- FIG. 3 is a schematic diagram showing a state immediately before extruding the molten resin into one of the manifolds Ml, M2, and M3, and a state in which the molten resin is widened by any of the manifolds Ml, M2, and M3.
- thermoplastic resin 20A Sectional view showing the state of any of the three thermoplastic resins 20A and another thermoplastic resin 20B at the bottom of the grease supply pipes Cl, C2, and C3.
- Another thermoplastic resin 20B coexists on both ends of thermoplastic resin 20A after widening with either M2 or M3 It shows a composed Te section of the state.
- thermoplastic resins 20B coexist in the cross-sectional shape shown in the upper part of FIG. 3, and when widened by the manifold in this state, any one of the objectives as shown in the lower part of FIG. A so-called wrap portion 6 in which the thermoplastic resin 20B enters is formed above and below the end of the thermoplastic resin 20A.
- thermoplastic resin 20A If the melt viscosity of one of the thermoplastic resins 20A is extremely smaller than the melt viscosity of another thermoplastic resin 20B, the two thermoplastic resins 20A At the end, the thermoplastic resin 20B coexists with the cross-sectional shape shown in the upper part of FIG. 4, and when widened by the manifold in this state, as shown in the lower part of FIG. 4, one of the target thermoplastic resin A wrap portion 6 containing thermoplastic resin B is formed above and below the end of fat 20A.
- wrap portions 6 must be removed because the desired thermoplastic resin 20A and another thermoplastic resin 20B cannot be used as a product in a portion where they overlap, but When the wrap portion 6 is large, the removed portion increases, and the yield of the target thermoplastic resin decreases. Further, in order to make it easy to confirm the wrap portion 6, it is preferable to use another thermoplastic resin 20B containing a colored pigment for coloring.
- another thermoplastic resin 20B may contain a colored pigment having a color different from the color of the target thermoplastic resin, or the pigment may be added. It is preferable to use it as a transparent resin without containing it.
- the present invention is directed to any one of the thermoplastic resins according to the present invention.
- Either of 20A and another thermoplastic resin 20B when passing through the feed block and the T-die, the difference between the melt viscosities of the two is set to 3000 poise or less at a shear rate of 20-500 sec- 1 to achieve either of
- the thermoplastic resin 20B will be present at both ends of the thermoplastic resin 20A in the cross-sectional shape shown in the upper part of Fig. 5, and if it is widened by the manifold in this state, the wrap part will be formed as shown in the lower part of Fig. 5.
- thermoplastic resin 20B With little thermoplastic resin 20A at both ends, another thermoplastic resin 20B co-exists at both ends, and both ends of each thermoplastic resin 20A with the target thermoplastic resin 20A Another thermoplastic resin 20B almost forms the wrap part ⁇ layer of three layers is so that it is possible to film formation of the multilayer film laminated with that section state.
- the molten resin supply tubes Cl, C2, C3, the molten resin supply tubes Dl, D2, D3, feed block 1, and T die 2 Heaters and temperature sensors are provided around Ml, M2, and M3, and the heating temperature is adjusted using temperature control means. The resin with the higher melt viscosity is heated to a higher temperature, and the resin with the lower melt viscosity is heated. By heating to a low temperature, the difference in melt viscosity between one thermoplastic resin 20A and another thermoplastic resin 20B can be adjusted to 3000 poise or less at a shear rate of 20-500 seconds- 1 .
- the difference between the melt viscosity of one thermoplastic resin 20A and another thermoplastic resin 20B is adjusted to 3000 poise or less at a shear rate of 20-500 seconds- 1.
- the melt viscosity of one of the target thermoplastic resins 20A is larger than the melt viscosity of another thermoplastic resin 20B, and only the target thermoplastic resin 20A If the resin pulsates when discharged from the die lip 4 of (2) and the film width fluctuates widely, the end of either of the target thermoplastic resins 20A should be If another thermoplastic resin 20B with a large melt viscosity is present, it is intended to be melted.
- thermoplastic resin 20A The pulsation of the thermoplastic resin 20A is suppressed, and the fluctuation of the film width is reduced. Therefore, the film can be formed at a higher speed than when a non-stretched film is formed using only one of the desired thermoplastic resins 20A or a plurality of the desired thermoplastic resins.
- any one of the target thermoplastic resins 2 OA in the feed block 1 is provided with a molten resin supply pipe 2 OA for supplying a molten resin.
- 20B melted resin supply tube Dl, D2, or D3 joins any of the holes Hl, H2, or H3 from the top immediately above any of the tubes Cl, C2, or C3 to the lowest T-die.
- the cross section of the part H1R, H2R, H3R immediately before the part C1R, C2R, C3R, and the hole H1, H2, H3 of any of the tubes Dl, D2, D3 The cross-sectional shape shown in the upper part of Fig.
- thermoplastic resin 20B shows the cross-sectional shape of another thermoplastic resin 20B at both ends of one of the target thermoplastic resins 20A before widening by the manifold in the T-die. (Either C1R, C2R, or C3R). Therefore, if the width is increased by any of the Ml, M2, and M3 in this state, almost no wrap is formed as shown in the lower part of FIG.
- FIG. 8 On the metal plate 30 that progresses continuously downward from the die lip 4 of the T-die 1, another thermoplastic resin 20B is present at both ends of one of the desired thermoplastic resins 20A in a multilayer structure.
- FIG. 3 is a schematic plan view showing a case where a multilayer resin formed by extruding and then laminating each resin layer on a metal plate 30 is viewed from above the metal plate 30.
- a T-die whose discharge width of the die lip 4 is larger than the width of the metal plate 30 is used as the T-die 1.
- the production of the non-stretched film of the present invention described above is performed until a multilayer resin layer formed by laminating a plurality of target thermoplastic resins 20A and another thermoplastic resin 20B from the die lip 4 of the T die 1 is discharged. It is formed into a molten film by the same operation as in the molding. Then, on both sides of the target thermoplastic resin 20A, each resin layer in which another thermoplastic resin 20B which is unavoidably formed into a thicker film is laminated, and each of the target thermoplastic resin 20B is laminated. The width of the resin layer on which the thermoplastic resin 20A is laminated is larger than the width of the metal plate 30 and is discharged onto the metal plate 30 to laminate and cover the metal plate 30.
- the hatched portion in the figure indicates a portion where the metal plate 30 is laminated and covered with a resin layer obtained by laminating a plurality of target thermoplastic resins 20A.
- a resin layer obtained by laminating a plurality of target thermoplastic resins 20A.
- only the portion of the desired thermoplastic resin 20A on the metal plate 30 is laminated and coated to form the resin-coated metal plate 40, and then another thermoplastic resin 20B and the desired thermoplastic resin 20B are coated.
- a portion of the metal plate 30 of the fat 20A protruding outside both ends is cut and removed by using a cutting means 15 such as a cutter. In this way, the entire width of the metal plate 30 is laminated and covered with only the target thermoplastic resin 20A of the target multilayer having a uniform thickness.
- thermoplastic resin 20A by controlling the extrusion amount of each thermoplastic resin 20A so that the portion of the thermoplastic resin 20A protruding outside both ends of the metal plate 30 is minimized, the target thermoplastic resin 20A can be formed.
- a resin-coated metal plate can be manufactured with almost no mouth.
- Thermoplastic Polje ester resin as one of ⁇ I for the purpose of forming a film on the non-oriented film of three-layer (ethylene terephthalate Z ethylene isophthalate copolymer (Echiren'iso phthalate 5 mole 0/0), mp: 243
- the melt viscosity at a temperature of 260 ° C and a temperature of 260 ° C and a shear rate of 100 seconds- 1 is 7500 poise), heated to 260 ° C using an extruder A1 and melted.
- the polyester resin is used as a thermoplastic resin to coexist at both ends of each of the target thermoplastic resins, polyester resin I, polyester resin II, and polyester resin III (melting point: (145
- the wrap portion 6 where any one of the polyester resin I, the polyester resin II, and the polyester resin III overlaps the polyethylene was hardly formed. Therefore, cut both ends of the film using a cutter at a position 40 cm from both sides of the center of the three-layer resin film to remove polyester resin I, polyester resin II, and polyester resin III.
- the film was wound into a coiler as a three-layer unstretched film with a width of 80 cm (Example 2)
- thermoplastic ⁇ of interest ethylene terephthalate Z ethylene isophthalate copolymer (Echiren'iso phthalate 5 mole 0/0), mp: 243 ° C, melt viscosity at 260 ° C and a shear rate of 100 seconds- 1 at 7,500 poise
- ethylene terephthalate Z ethylene isophthalate copolymer (Echiren'iso phthalate 5 mole 0/0)
- melt viscosity at 260 ° C and a shear rate of 100 seconds- 1 at 7,500 poise was heated to 260 ° C using extruder A1 to melt, and the other one of thermoplastic resin was melted.
- Butylene terephthalate 1 (melting point: 230 ° C, temperature: 260 ° C, and melt viscosity at a shear rate of 100 seconds- 1 : 6,500 poises) was heated to 260 ° C using an extruder A2 and melted.
- Polybutylene terephthalate I (melting point: 23 C, melt temperature at 260 ° C and shear rate at 100 sec- 1 : 7,000 poise) was used as another resin of the fat at 260 ° C using an extruder A3.
- Polyester resin polybutylene terephthalate I, polybutylene terephthalate I
- polyethylene resin melting point: 160 ° C
- thermoplastic resin coexisting at both ends of HI, and 20 wt. % Added resin temperature 200 ° C and shear rate
- polyester resin, polybutylene terephthalate I, and polybutylene terephthalate II after film formation was about 90 cm, and the width of the polyethylene part at both ends was about 5 cm.
- polyester resin, polybutylene terephthalate I, polybutylene terephthalate II, and polyethylene were discharged, dropped on a cooling roll 5 and cooled and solidified to produce a resin film having a width of about lm. Filmed.
- the melt viscosity at a resin temperature and a shear rate of 100 seconds- 1 immediately before feed block 2 is as follows: polyester resin: 260 ° C, about 6000 poise, polybutylene terephthalate. I: 260. C, about 5000 poise, polybutylene terephthalate II: 260. C, about 5500 poise, polyethylene (with TiO): 200 ° C, about 4500 poise.
- polyester resin 260 ° C, about 6000 poise
- polybutylene terephthalate. I 260. C, about 5000 poise
- polybutylene terephthalate II 260. C, about 5500 poise
- polyethylene (with TiO) 200 ° C, about 4500 poise.
- the film is formed in this way
- thermoplastic ⁇ of interest resin I ethylene terephthalate Z ethylene isophthalate copolymer (Echiren'iso phthalate 3 mol 0/0, mp: 250 ° C, melt viscosity at 260 ° C at a shear rate of 100 sec- 1 : 8000 poise) was heated to 260 ° C using an extruder A1 to melt, and polyester was used as another thermoplastic resin.
- ⁇ II ethylene terephthalate Z ethylene isophthalate sauce over preparative copolymer (ethylene isophthalate 10 mole 0/0), mp: 233 ° C, at 260 ° C or a and shear rate of 100 sec - melt viscosity at 1: 7000 poises ) Is melted by heating to 260 ° C using extruder A2, and another polyester resin of thermoplastic resin III (ethylene terephthalate Z ethylene isophthalate copolymer (ethylene
- polyester resin I, polyester resin II, polyester resin III and polyethylene were discharged, dropped on a cooling roll 5 and cooled and solidified. Into a resin film having a width of about lm.
- the melt viscosity at a resin temperature and a shear rate of 100 seconds- 1 immediately before feed block 2 was as follows: polyester resin I: 260 ° C, approx.7500 poise, Posiestenol luster II: 260 ° C, approx. 6000 poise, Pojiesutenore Kitsuki fact m: 260 o C, about 5 500 poise, polyethylene (TiO added): 200 ° C, was about 3500 poise. in this way
- the wrap portion 6 containing polyethylene was placed above and below the ends of the polyester resin I as shown in Fig. 4. It was formed. Therefore, it was necessary to cut and remove the resin at both ends of the three-layer resin film, including the wrapped part, and cut and removed both ends of the film at a position 30 cm from both sides of the center of the three-layer resin film.
- the three-layer unstretched film which also has the strength of Fat I, Polyester Resin II, and Polyester Resin III, could only be obtained with a width of 60 cm.
- polyester resin, polybutylene terephthalate I and polybutylene terephthalate HI used in Example 2 as in Example 2 were used as three thermoplastic resins for the purpose of forming a three-layer unstretched film.
- Polyethylene terephthalate is used as a thermoplastic resin coexisting at both ends of each of these objective thermoplastic resins, polyester resin, polybutylene terephthalate I, and polybutylene terephthalate HI (melting point: 255 ° C) and 20% by weight of TiO as a coloring component (at 265 ° C)
- melt viscosity at a shear rate of 100 sec- 1 : 9700 poise was heated to 265 ° C using an extruder B and melted.
- the film is formed as a resin film in which polyethylene terephthalate (TiO added) coexists at both ends of polyester resin, polybutylene terephthalate I, and polybutylene terephthalate II. No po
- each part of the ester resin, polybutylene terephthalate I and polybutylene terephthalate II is about 80 cm, and polyethylene terephthalate (TiO2 added) at both ends.
- the width of section 2 is about 10 cm each, and the extruders Al, A2, and A3 pass through the molten resin supply pipes Cl, C2, and C3 heated to 260 ° C by adjacent heaters.
- the polyester resin and polybutylene were extruded in the same manner as in Example 1 except that they were extruded from feedblock 1 through molten resin supply tubes Dl, D2, and D3 heated to 260 ° C, respectively.
- Terephthalate I, polybutylene terephthalate II and polyethylene terephthalate were discharged, dropped on a cooling roll 5 and cooled and solidified to form a three-layer resin film having a width of about lm.
- the melt viscosity at a resin temperature and a shear rate of 100 seconds- 1 immediately before feed block 1 was as follows: polyester resin: 260 ° C, approx. 6000 poise; polybutylene terephthalate I: 260 ° C, approx. 5000 poise; butylene terephthalate Bok II: 260 o C, about 5500 poise, positive ethylene terephthalate (TiO added): 260. C, about 9500 poise.
- polyester resin 260 ° C, approx. 6000 poise
- polybutylene terephthalate I 260 ° C, approx. 5000 poise
- butylene terephthalate Bok II 260 o C, about 5500 poise
- positive ethylene terephthalate (TiO added): 260. C about 9500 poise.
- polyester resin 260 ° C, approx. 6000 poise
- polybutylene terephthalate I 260 ° C, approx. 5000 poise
- the width of the three-layer resin of resin III is about 80 cm, the width of the polyethylene at both ends is about 10 cm each, and the total width is about lm, and the polyester resin I at both ends in the width direction of the zinc-coated steel sheet.
- a portion of the three-layer resin, polyester resin II and polyester resin III, and the entire polyethylene protruded, and the protruding resin portion was cut with a cutter.
- the entire surface of the zinc-plated steel sheet is wound around the coiler as a resin-coated zinc-coated steel sheet coated with three layers of polyester resin I, polyester resin II, and polyester resin m.
- the method for producing a multi-layer unstretched film of the present invention is characterized in that a plurality of thermoplastic resins are separately heated and melted, and the respective heated and melted thermoplastic resins are widened in respective manifolds and then joined.
- a method for producing a multi-layer unstretched film using a multi-fold method which is extruded and extruded, each thermoplastic resin intended to be formed into a multi-layer unstretched film, and each of the thermoplastic resins is formed.
- Another thermoplastic resin other than the fat is heated and melted separately, guided to both sides of each thermoplastic resin just before widening in each manifold, and another thermoplastic resin is added to both ends of each thermoplastic resin.
- Grease is supplied to each manifold so that the grease coexists, and the width of the grease is expanded.
- the die lip force of the T-die is discharged onto the caster roll, and a multi-layer thermoplastic resin composed of each thermoplastic resin
- the other thermoplastic resin part of the multilayer is cut and removed, and the desired thermoplastic resin part is removed.
- the other thermoplastic resin portion that is hardly cut can be reused as another thermoplastic resin in the next production of a multilayer unstretched film. For this reason, the portion to be discarded as a thick film portion after film formation is minimized, and the production cost of a desired multilayered unstretched film made of a plurality of thermoplastic resins can be reduced.
- the method for producing a multilayer resin-coated metal sheet of the present invention is characterized in that a plurality of thermoplastic resins are heated and melted, and each of the heated and melted thermoplastic resins is widened in each of the manifolds and then joined. After forming into a film using the multi-folding method, which is extruded and then extruded onto a metal plate of a die-lip of a T-die, a method of manufacturing a multi-layer resin-coated metal plate that is laminated and coated!
- thermoplastic resins constituting the multilayer resin intended to be laminated and coated on the metal plate and another thermoplastic resin other than the respective thermoplastic resins are separately heated and melted, and each of the thermoplastic resins is melted.
- another thermoplastic resin is guided on both sides of each thermoplastic resin, and another thermoplastic resin is present at both ends of each thermoplastic resin, and a multilayer thermoplastic resin is present. ⁇ Discharge onto the metal plate so that the width of the resin part is larger than the width of the metal plate, After forming a resin-coated metal plate in which only multiple layers of thermoplastic resin are laminated and coated on a metal plate, the resin portion protruding outside the both ends of the metal plate is cut and removed, and the target thermoplastic resin is removed.
- the resin-coated metal plate can be manufactured with little loss of the intended thermoplastic resin.
- the cut thermoplastic resin portion can be reused as another thermoplastic resin in the next production of a multilayer unstretched film. Therefore, the production cost of a multilayer resin-coated metal plate obtained by coating and laminating a multilayer resin film composed of a plurality of desired thermoplastic resins can be reduced.
- the apparatus for producing a multilayer non-stretched film of the present invention heats and melts a plurality of (n) thermoplastic resins separately, and expands each of the heated and melted thermoplastic resins in each of the manifolds.
- the multi-layer (n-layer) non-stretched film manufacturing equipment that uses the multi-merge method to merge and extrude the thermoplastic resin that constitutes each layer of the multi-layer (n-layer) unstretched film (A1—A1) extruders (A1—A1) that separately heat and melt each of them, and at least one extruder (B) that heats and melts another thermoplastic resin other than each of these thermoplastic resins
- a plurality (n) of feedblocks comprising two holes connected to each of the molten resin supply pipes (D1 to Dn), a plurality of (n) marfolds, and a It has one die lip connected to each, and is composed of one T-die connected to each of the feed blocks, and is manufactured by using the multilayer unstretched film manufacturing apparatus of the present invention.
- the film When forming a film as a target multilayer unstretched film, the film is formed into an unstretched film in which another thermoplastic resin coexists on both sides of the target multilayer resin, and It is not possible to cut and remove another thermoplastic resin part of the multilayer that is inevitably formed into a thicker film than the thermoplastic resin part of the multilayer to be almost cut off the target thermoplastic resin part Another thermoplastic resin part cut will produce a multi-layer unstretched film next time It can be reused as a separate thermoplastic ⁇ of. As a result, the portion to be discarded as a thick film portion after film formation becomes extremely small, and a plurality of target thermoplastic films are removed. The production cost of a multilayer unstretched film made of a fat can be reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020067017638A KR101133970B1 (ko) | 2004-03-01 | 2005-02-25 | 복층의 무연신필름의 제조방법, 복층수지피복 금속판의제조방법 및, 복층의 무연신필름의 제조장치 |
EP05719525.7A EP1721723B1 (en) | 2004-03-01 | 2005-02-25 | Process for producing multilayered unstretched film, process for producing multilayered-resin-coated metal sheet, and apparatus for producing multilayered unstretched film |
US10/591,054 US20070262484A1 (en) | 2004-03-01 | 2005-02-25 | Process for Producing Multilayered Unstretched Film, Process for Producing Multilayered-Resin-Coated Metal Sheet, and Apparatus for Producing Multilayered Unstretched Film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-055685 | 2004-03-01 | ||
JP2004055685A JP4425668B2 (ja) | 2004-03-01 | 2004-03-01 | 複層の無延伸フィルムの製造方法および複層樹脂被覆金属板の製造方法 |
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WO2005082597A1 true WO2005082597A1 (ja) | 2005-09-09 |
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PCT/JP2005/003124 WO2005082597A1 (ja) | 2004-03-01 | 2005-02-25 | 複層の無延伸フィルムの製造方法、複層樹脂被覆金属板の製造方法、および複層の無延伸フィルムの製造装置 |
Country Status (6)
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US (1) | US20070262484A1 (ja) |
EP (1) | EP1721723B1 (ja) |
JP (1) | JP4425668B2 (ja) |
KR (1) | KR101133970B1 (ja) |
CN (1) | CN100593465C (ja) |
WO (1) | WO2005082597A1 (ja) |
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JP4628078B2 (ja) * | 2004-12-10 | 2011-02-09 | 東洋鋼鈑株式会社 | 無延伸フィルムの製造方法、樹脂被覆金属板の製造方法、および無延伸フィルムの製造装置 |
JP5039127B2 (ja) * | 2007-03-27 | 2012-10-03 | 株式会社ブリヂストン | 未加硫ゴム押出装置及び未加硫ゴムの製造方法 |
US8460588B2 (en) | 2007-07-30 | 2013-06-11 | Kimberly-Clark Worldwide, Inc. | Cross directional zoned bicomponent films, film laminates, and systems and methods for manufacture of the same |
JP5434002B2 (ja) * | 2007-08-07 | 2014-03-05 | 東レ株式会社 | 積層シートの製造装置および製造方法 |
JP5719516B2 (ja) | 2010-02-08 | 2015-05-20 | 富士フイルム株式会社 | 流延装置及び方法、並びに溶液製膜方法 |
CN102841397B (zh) * | 2011-06-21 | 2016-06-15 | 宏腾光电股份有限公司 | 多层膜反射片及其制作方法 |
CN102689443A (zh) * | 2012-05-14 | 2012-09-26 | 广东华菱机械有限公司 | 多层双螺杆共挤出pet片材的生产线 |
KR101938892B1 (ko) * | 2012-08-09 | 2019-01-15 | 도레이케미칼 주식회사 | 폴리머가 분산된 반사 편광자 제조방법 및 장치 |
KR101938893B1 (ko) * | 2012-08-09 | 2019-01-15 | 도레이케미칼 주식회사 | 폴리머가 분산된 반사 편광자 제조방법 및 장치 |
KR101931376B1 (ko) * | 2012-08-09 | 2018-12-20 | 도레이케미칼 주식회사 | 폴리머가 분산된 반사 편광자 제조방법 및 장치 |
KR101930552B1 (ko) * | 2012-08-09 | 2018-12-18 | 도레이케미칼 주식회사 | 폴리머가 분산된 반사 편광자 제조방법 및 장치 |
KR101930549B1 (ko) * | 2012-08-09 | 2018-12-18 | 도레이케미칼 주식회사 | 다층 반사편광자의 제조방법 및 장치 |
KR101931378B1 (ko) * | 2012-08-09 | 2018-12-20 | 도레이케미칼 주식회사 | 다층 반사편광자의 제조방법 및 장치 |
JP6299747B2 (ja) * | 2013-03-14 | 2018-03-28 | 日本ゼオン株式会社 | ダイス、及び複層フィルムの製造方法 |
CN105729748B (zh) * | 2016-04-12 | 2018-06-01 | 湖北新源四氟滤材有限公司 | 聚四氟乙烯同步多层分切多层共挤挤出装置 |
KR102220615B1 (ko) * | 2016-09-02 | 2021-02-25 | 가부시끼가이샤 니혼 세이꼬쇼 | 피드 블록과 이것을 구비한 시트의 제조 장치, 및 시트의 제조 방법 |
CN109514827B (zh) * | 2018-10-27 | 2021-10-08 | 江阴标榜汽车部件股份有限公司 | 一种汽车管路系统用多层管的生产工艺 |
CN111516250A (zh) * | 2020-04-30 | 2020-08-11 | 辛集市旭远新材料科技有限公司 | 一种复合塑料薄膜吹膜机以及制备方法 |
JP6917503B1 (ja) * | 2020-06-16 | 2021-08-11 | 日東電工株式会社 | 押出成形装置、フィルムの製造システム、および、フィルムの製造方法 |
KR102310570B1 (ko) * | 2020-07-21 | 2021-10-12 | 안예솔 | 다층 구조의 pe 포대 제작용 필름 제조방법 |
KR102310573B1 (ko) * | 2020-07-21 | 2021-10-12 | 안예솔 | 다층 구조의 pe 포대 제작용 필름 제조장치 |
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- 2005-02-25 KR KR1020067017638A patent/KR101133970B1/ko active IP Right Grant
- 2005-02-25 US US10/591,054 patent/US20070262484A1/en not_active Abandoned
- 2005-02-25 CN CN200580006494A patent/CN100593465C/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
JP4425668B2 (ja) | 2010-03-03 |
CN100593465C (zh) | 2010-03-10 |
CN1925971A (zh) | 2007-03-07 |
EP1721723A1 (en) | 2006-11-15 |
JP2005246608A (ja) | 2005-09-15 |
EP1721723A4 (en) | 2016-06-01 |
US20070262484A1 (en) | 2007-11-15 |
KR20070007091A (ko) | 2007-01-12 |
EP1721723B1 (en) | 2018-11-28 |
KR101133970B1 (ko) | 2012-04-05 |
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