WO2004098883A1 - エンボス意匠シート及びエンボス意匠シート被覆金属板 - Google Patents
エンボス意匠シート及びエンボス意匠シート被覆金属板 Download PDFInfo
- Publication number
- WO2004098883A1 WO2004098883A1 PCT/JP2004/006575 JP2004006575W WO2004098883A1 WO 2004098883 A1 WO2004098883 A1 WO 2004098883A1 JP 2004006575 W JP2004006575 W JP 2004006575W WO 2004098883 A1 WO2004098883 A1 WO 2004098883A1
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- WIPO (PCT)
- Prior art keywords
- layer
- sheet
- resin
- laminated
- embossing
- Prior art date
Links
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- KOAWAWHSMVKCON-UHFFFAOYSA-N 6-[difluoro-(6-pyridin-4-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methyl]quinoline Chemical compound C=1C=C2N=CC=CC2=CC=1C(F)(F)C(N1N=2)=NN=C1C=CC=2C1=CC=NC=C1 KOAWAWHSMVKCON-UHFFFAOYSA-N 0.000 claims description 5
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- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 claims description 4
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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
- 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
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
Definitions
- the present invention relates to a laminated sheet excellent in embossing suitability for use in covering materials for home appliances such as AV equipment and air conditioner covers, plywood furniture, steel furniture, and building interiors, and embossing. More particularly, the present invention relates to a resin-coated metal plate coated with an embossed design sheet.
- soft vinyl chloride resin sheets with embossed designs (hereinafter referred to as soft PVC sheets). 1) is preferably used.
- Polyolefin-based resin sheets such as polypropylene have a narrower embossable temperature range than flexible PVC sheets and require precise temperature control.
- embossing is used to continuously emboss conventional flexible PVC sheets. There is an advantage that the applicator can be adapted almost as it is.
- polyolefin resin is basically a resin with poor adhesiveness, and the adhesive force at the laminating interface and the adhesive force with the metal plate will be long-term! : A special device is required to secure the connection.
- PETG non-crystalline polyester resin
- a sheet made of a polyester resin having excellent surface scratch resistance has been used as a resin-coated metal plate having an embossed design.
- embossing When embossing is applied to a polyester resin sheet using an embossing machine in the same way as a conventional soft PVC sheet / polyolefin sheet, embossing is possible, but there is a problem with emboss heat resistance .
- the heat resistance of the emboss indicates whether the embossed design sheet or the metal sheet covered with the embossed design sheet is exposed to high heat in use, and whether the embossing return is large or small. Has good embossing heat resistance.
- embossing involves applying strain to the heated viscoelastic body and then cooling it.
- the temperature at which the strain is applied (determined by the temperature of the sheet and the temperature of the embossing plate roll) is increased, the melt tension of the sheet itself is significantly reduced, and the width of the sheet shrinks. As a result, wrinkling and sheet breakage were caused, and satisfactory emboss heat resistance comparable to that of a conventional flexible PVC sheet could not be provided.
- a method of giving an embossed pattern to a sheet made of a polyester resin there is a method of forming a polyester resin sheet by an extrusion film forming method.
- the casting roll is not a regular mirror roll but an embossing roll, and the resin in the molten state flowing out of the T die is embossed.
- This method has the advantage that relatively high embossing heat resistance can be easily obtained, and the embossed pattern can be transferred regardless of whether or not the polyester resin has crystallinity.
- the embossed pattern was restricted, such as a deep embossed pattern or an embossed pattern having a complicated pattern, which could not be provided due to problems such as releasability and air entrapment.
- the castin glownole generally has a larger diameter than the embossed rolle of an embossing machine, and having a number of casting rolls corresponding to the pattern poses a problem in terms of equipment cost / man-hours for replacement.
- embossing methods include extruding the molten resin onto a steel sheet and transferring the pattern by pressing it with an embossed pattern roll before the resin is cooled, or reheating the metal sheet coated with the resin sheet to form the embossed pattern.
- emboss is transferred to the molten resin, so it is possible to give an embossed design regardless of whether it is crystalline polyester or non-crystalline polyester.
- embossing plate roll may come into contact with warpage at the edge of the metal plate, damaging the plate, etc. And the cost of equipment is high.
- a non-oriented polyester resin mainly composed of a crystalline polyester resin having a melting point in the range of 210 ° C. to 240 ° C.
- a resin layer (this layer is also referred to as “layer A” in the present invention) and a non-oriented resin layer mainly composed of a substantially amorphous polyester-based resin (in the present invention, this layer is referred to as “layer A”).
- the total thickness of the sheet is in the range of 65 / im to 300 ⁇ , and the tensile breaking strength at 180 ° C is also referred to as “layer B”. Is 5 MPa or more.
- a printing layer (A layer) mainly composed of a polyester resin having crystallinity and having a melting point in the range of 210 ° C. to 240 ° C.
- the printing layer is also referred to as “C layer”.
- a non-oriented transparent resin layer mainly composed of a substantially amorphous polyester resin (in the present invention, This layer is also referred to as “D layer.”
- D layer In a laminated sheet composed of at least three layers on which) is laminated, the total thickness of the sheet is in the range of 65 ⁇ to 300m, and at 180 ° C A laminated sheet excellent in embossing suitability, having a tensile breaking strength of 5 MPa or more.
- a non-oriented resin layer (A layer) mainly composed of a crystalline polyester resin and having a melting point in the range of 210 ° C. to 240 ° C.
- a non-oriented resin layer mainly composed of a crystalline polyester resin (this layer is also referred to as “E layer” in the present invention) is laminated, and a printing layer (C layer) is provided on the surface on the E layer side.
- a laminated sheet comprising at least four layers, on which a non-oriented transparent resin layer (D layer) mainly composed of a substantially amorphous polyester-based resin is laminated. Is 6 5 ⁇ ! Up to 300 ⁇ , tensile at 180 ° C A laminated sheet excellent in embossing suitability, having a breaking strength of 5 MPa or more.
- the above laminated sheet that is, a laminated sheet composed of at least two layers in which the B layer is laminated on the A layer (hereinafter also referred to as “A + B”)), and at least three laminated layers in which the C layer and the D layer are sequentially laminated Laminated sheet (hereinafter also referred to as “A + C + D”), or a laminated sheet composed of at least four layers in which an E layer, a C layer, and a D layer are sequentially laminated on the A layer (hereinafter, referred to as “A + E”).
- an embossed design sheet may be provided with an embossed pattern on the side surface or on the side of the D layer.
- the laminated sheet (“A + B”, “A + C + D” or “A + E + C + D”) has a melting point (T m ) — After heating to a temperature of 10 ° C or less, an embossing plate roll can be used to impart an embossed pattern to the B layer side surface or the D layer side surface.
- the embossed design sheet can be a metal plate coated with an embossed design sheet by laminating the surface on the layer A side on a metal plate with a thermosetting adhesive.
- the thickness of the sheet of the present invention is in the range of 65 ⁇ m to 300, the term “film and sheet” is more correct, but here, the thickness generally called a film is used.
- the term “sheet” was used for the range.
- the expression “becoming the main component” means that the resin component is contained in an amount of more than 50% by weight of the total resin component, and the expression “non-oriented” means that the orientation treatment such as a stretching operation is intentionally performed. This was not done, and it does not mean that there was no orientation or the like that would occur when the film was taken out by the casting jar during extrusion film formation.
- substantially amorphous polyester-based resin refers to a polyester resin that does not show a clear crystal melting peak when the temperature is raised, and also has crystallinity but a low crystallization rate. It is intended to include a polyester resin which does not have a high crystallinity in a heating process until the emboss pattern is transferred by an embossing machine. Further, in claim 5, the surface provided with the D layer and the printing layer (C layer) of the A layer, or the lamination integrated with the surface provided with the printing layer (C layer) of the E layer and the E layer.
- the printing layer (C layer) is not always applied entirely, and if the printing layer is provided partially, the D layer and A layer or the D layer This is because there is a portion where the E layer is directly heat-sealed and laminated without a printing layer.
- polyester resin A (or simply resin A).
- polyester resin B (or simply, resin B).
- polyester resin D (or simply resin D)
- polyester resin E (or simply resin E).
- FIG. 1 is a schematic sectional view of the laminated sheet according to the first embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view of the laminated sheet according to the second embodiment of the present invention.
- FIG. 3 is a schematic sectional view of the laminated sheet according to the third embodiment of the present invention.
- FIG. 4 is a schematic cross-sectional view showing an example of an embossed design sheet-coated metal plate laminated on a metal plate via a thermosetting adhesive on the laminated sheet of FIG.
- FIG. 5 is a schematic diagram showing an example of a conventional embossing machine for embossing a soft PVC sheet.
- a layer 1 functions as an anti-adhesion layer to the heated metal roll when the laminated sheet is passed through an embossing machine, and also reduces the width and wrinkles of the laminated sheet heated to the same temperature as conventional soft PVC. It is provided to provide a function to prevent intrusion and melt fracture. Therefore, the tensile breaking strength at 180 ° C. defined in the first to third embodiments of the present invention is mainly given by the composition and thickness of the A layer 1.
- the A layer 1 is mainly composed of a crystalline polyester resin, and contains more than 50% by weight, preferably more than 55% by weight of the crystalline polyester resin of all resin components, More preferably, the content is 70% by weight or more.
- Resin A The melting point is in the range of 210 ° C. to 240 ° C., whereby the conventional laminating equipment used for laminating the soft biercite to the metal plate can be used as it is.
- melt fracture occurs Or
- polyester resins having various crystallinities can be used as the polyester resin for forming the A layer 1.
- polybutylene terephthalate (PBT) resin and polytrimethylene terephthalate (PTT) resin have a high crystallization rate, and by appropriately setting the casting roll temperature during extrusion film formation, sheets can be obtained by extrusion film formation. At this point, it is preferable because relatively high crystallinity can be imparted to the A layer 1. Since the PBT resin has a relatively low glass transition temperature, it is easy to obtain a sheet having crystallinity during extrusion film formation.
- the melting point of a so-called homo-PBT resin using terephthalic acid or dimethyl terephthalic acid as the dicarboxylic acid component and 1,4-butanediole as the alcohol component is about 225 ° C.
- a PBT resin having a copolymer composition in which a part of the acid component is replaced with isophtalic acid can be used.
- the A layer 1 may be made of a material mainly composed of a PBT resin and mixed with an amorphous resin or the like. In this case, in order to obtain A layer 1 having such a degree of crystallinity that it does not stick to a heated metal roll or the like during extrusion film formation, 55 weight of the total resin component of A layer 1 is required. It is preferred that the PBT resin is at least / 0 . '' As the non-crystalline resin to be added to the A layer 1, there may be mentioned the non-crystalline resin used as a main component of the B layer 2 described later. Monkey
- unsuitable resins for the present invention include polyethylene terephthalate (PET) -based resins. This is because the crystallization rate is slow, tensile strength at break cannot be obtained, and when crystallized, its melting point is high, so that sufficient adhesion can be obtained by lamination with metal plate 6. It is not possible.
- PET polyethylene terephthalate
- the layer A When the layer A is passed through the embossing machine in a state of high crystallinity, the layer A does not show adhesion to the metal until the temperature becomes close to its melting point. Also, as the overall structure of the laminated sheet, the breaking strength at 180 ° ⁇ is 5 1 ⁇ ? By having a value of a or more, there is little risk of shrinking width, wrinkling, melt fracture, etc., and the sheet can be heated to a high temperature to transfer an embossed pattern having excellent embossing heat resistance.
- the temperature of 180 ° C. is a temperature at which the soft PVC sheet is heated when embossing the sheet, or a temperature slightly higher than that.
- a pigment may be added to the A layer 1 as necessary to impart design properties, secure the visual concealment effect of the base metal plate 6, and improve the color development of the printed layer 3.
- the pigment When the pigment is added in the configuration shown in FIG. 1, the pigment may not necessarily be added to the A layer 1 since the pigment may be added to the B layer 2.
- the D layer 4 provided on the print layer 3 needs to have transparency, and the addition of the pigment to the A layer 1 is essential.
- the printed layer 3 is provided, but since the E layer 5 is disposed below the printed layer 3, the pigment is added to either the A layer 1 or the E layer 5. Alternatively, it can be added to both layers.
- the pigment to be used may be a pigment generally used for coloring a resin, and the amount of addition may be the amount generally added.
- white coloring is based on a titanium oxide pigment having a high hiding effect, and the color is adjusted with chromatic inorganic or organic pigments.
- the importance of the visual hiding effect of the base metal plate 6 depends on the application.
- the concealment ratio measured in accordance with JISK5407.2 "General paint test method / concealment ratio" is preferably 0.98 or more.
- the concealment ratio is lower than this, the tint of the base material such as the metal plate 6 is reflected in the tint of the laminated sheet, and when these tints change, The color observed from the surface of the sheet is also undesirably changed.
- the concealment ratio need not be 0.95 or more in applications in which a change in color due to this reason is not particularly problematic.
- additives include phosphorus-based and phenol-based antioxidants, heat stabilizers, ultraviolet absorbers, light stabilizers, nucleating agents, impact modifiers, processing aids, metal deactivators, and inactivation of residual polymerization catalysts.
- nucleating agents nucleating agents, antibacterial agents, fungicides, antistatic agents, lubricants, flame retardants, fillers, etc., commonly used in a wide range of resin materials, carpoimide-type epoxy, epoxy-based and other terminal carboxylic acid sealants Examples thereof include those commercially available for polyester resins such as a blocking agent or a hydrolysis inhibitor.
- a surface lubricity imparting agent, a release agent, and the like may be added.
- Addition of a processing aid that has the effect of increasing the melt tension, instead of relying solely on the resin composition and crystallinity of layer A to maintain the melt tension when heated by the embossing machine
- the thickness range of A layer 1 must be such that the tensile strength when heated to 180 ° C can maintain 5 MPa or more in the entire laminated sheet. Since it can vary depending on the agent composition and the composition of layers other than A layer 1 (B layer 2, or B layer 2 and D layer 4, E layer 5 and D layer 4), it cannot be specified unconditionally. It is preferably at least m, and more preferably at least 30 ⁇ . If the thickness is smaller than this, it becomes difficult to obtain the required tensile strength.
- the thickness is preferably 45 ⁇ or more. If the thickness is smaller than this, it is necessary to add a large amount of pigment in order to impart a sufficient base concealing property, and there is a possibility that workability or the like may be reduced. Alternatively, it is necessary to add a special pigment such as a composite oxide-based calcined pigment, which leads to an increase in cost.
- the thickness of the A layer 1 is preferably not more than 200 zm, and not more than 100 ⁇ ⁇ More preferably, it is particularly preferably 60 ⁇ or less. If the thickness is further increased, the function of the layer 1 as a strength retaining layer during heating is saturated.In addition, if the thickness of the A layer 1 is increased, the thickness of the B layer 2 needs to be reduced. As a result, a deep embossed pattern cannot be transferred to the B layer 2.
- the total thickness of the laminated sheet is preferably 65 or more and 300 im or less, more preferably 70 O / im or more and 300 m or less, and about 15 ⁇ . Is particularly preferred. If the thickness is smaller than this, the protective effect on the base metal plate 6 will be insufficient, and if it is larger than this, it will be difficult to use the molding die that has been used for molding such as bending of conventional soft VC resin coated metal plate. This is because workability deteriorates.
- ⁇ Layer 2 is mainly composed of a substantially amorphous polyester resin.
- the laminated sheet having the structure shown in Fig. 1 is passed through an embossing machine, it is heated and softened and pressed by an emboss plate hole to emboss. This is the layer that transfers the pattern. Therefore, the layer 2 must not have a high crystallinity at the time of being pressed by the embossing plate roll, and is mainly composed of a substantially non-crystalline or low-crystalline polyester resin. Become.
- the layer 2 is embossed after being heated to a temperature equal to or higher than its glass transition temperature (Tg) by an embossing machine. It is necessary that the elastic modulus of the layer B during heating is sufficiently low to allow embossing. In the laminated sheet of the present invention, since layer A 1 maintains the melt tension, width shrinkage, wrinkling, melt fracture, and the like do not occur.
- polyester-based resin forming the B layer 2 a substantially non-crystalline or low-crystalline polyester-based resin can be used as a main component.
- PET-G An example of the non-crystalline copolyester resin is PET-G, which is cost-effective because of its stable supply of raw materials and large production volume.
- PET—G ⁇ 6 7 6 3 and similar trees
- a fat is used.
- Easter PET-G ⁇ 6763 resin has a structure in which about 3 Omo 1% of the ethylene glycolone moiety of polyethylene terephthalate is replaced with 1,4-six-hexanedimethanol, and the crystal is measured by DSC. This is a substantially non-crystalline polyester resin that has no observed chemical behavior.
- the present invention is not limited to this, and it can be treated as a non-crystalline resin under specific conditions that shows crystallinity under specific conditions.
- a polyester resin with a composition in which the ethylene glycol part of the above is replaced with 1,4-cyclohexane dimethanol should be replaced by about 30 mo 1% to about 70 mo 1% of the ethylene glycol part. Can be.
- the amount of 1,4-cyclohexanedimethanol is about 3 Omo 1% or less, the characteristics as a crystalline resin become remarkable, and crystallization proceeds during heating with an embossing machine, making embossing difficult. There is a risk. If it exceeds about 7 Omo 1%, the crystallinity becomes remarkable, which is not preferable.
- neopentyl glycol copolymerized PET that does not show crystallinity, or that has low crystallinity
- polyethylene terephthalate resin copolymerized with isophthalic acid that has low crystallinity etc. It can be used as a resin composition.
- the B layer 2 may be blended with PBT, PTT, or another polyester resin having high crystallinity. If the blend ratio is increased, the crystallinity of the B layer 2 becomes remarkable and it becomes difficult to provide embossing for the above-mentioned reason. Therefore, it is preferable to add 40% by weight or less, preferably 30% by weight or less.
- a coloring pigment may be added to the B layer 2 in order to hide the underlying metal and improve the design.
- the pigment may be added only to the B layer 2 as described above, or may be added to both the A layer 1 and the B layer 2.
- Pigments that can be used include those generally used for coloring polyester-based resins as in the case of the A layer 1.
- the preferred thickness of layer B is in the range of 45 zm to 250 um and 50! The range of from to 200 ⁇ is more preferable. If the thickness is thinner than this, embossable patterns that can be applied The types are greatly restricted. On the other hand, if the thickness is larger than this, it is necessary to reduce the thickness of the A layer 1, and it is difficult to obtain the rupture resistance when the laminated sheet is heated, which is not preferable. If the B layer 2 has a thickness of about 105 ⁇ , it is possible to use most of the embossing plate rolls conventionally used for embossing a flexible PVC sheet.
- the D layer 4 is a layer used in the configuration of FIG. 2 or FIG. 3, and is basically a layer that is heated and softened by an embossing machine and is pressed by an embossing plate roll to transfer an embossed pattern, similarly to the ⁇ layer 2. .
- the same polyester resin as that of the layer 2 can be used for the polyester resin forming the layer 4.
- the additives and the preferred thickness are the same as those of the layer 2.
- the D layer 4 is a layer laminated on the printing layer 3 (the C layer), the D layer 4 needs to have such a degree of transparency that the pattern of the printing layer 3 can be seen through.
- the layer 5 is also a layer mainly composed of a substantially amorphous polyester resin.
- the thickness of the D layer 4 needs to be set to be relatively large.
- the D layer 4 is a layer having transparency, an increase in haze is unavoidable because it is a non-oriented layer, and a decrease in visibility of a printed pattern is unavoidable.
- the polyester resin is a resin that is relatively susceptible to light yellowing, if the thickness of the D layer 4 is too large, the yellowing with time becomes conspicuous.
- a layer that is deformed by the pressing of the embossing plate roll is provided below the printing layer 3 (C layer), and the thickness of the layer 2 is reduced so that the visibility of the printed pattern is improved.
- the layer 5 is provided for the purpose of making the pattern transferable.
- the same polyester resin as the layer 2 or the D layer 4 can be used for the polyester resin forming the layer 5.
- the thickness of the D layer 4 may be set to 70 ⁇ m to 1 without particularly providing the E layer 5.
- the total thickness of the laminated sheet is required to be about 150 or more,
- the thickness of the layer 4 is set to 100 / m or less, preferably about 70 m, and the E layer 5 having an appropriate thickness is added thereto while preventing the transparency of the printing layer 3 from being reduced.
- the total thickness should be about 150 ⁇ m or more.
- the A layer 1 is mainly composed of a substantially non-oriented crystalline polyester resin
- the E layer 5 is mainly composed of a substantially amorphous polyester resin. Also, it is considered to be better than A layer 1.A layer 1 and E layer 5 are integrally formed by co-extrusion film formation, and printing layer 3 is partially printed. It is also possible to obtain a strong heat-sealing property between the layer E and the layer D 4, and to reduce the risk of separation between the layers.
- the printing layer 3 is applied by gravure printing, offset printing, screen printing, or printing by other known methods.
- the pattern of the print layer 3 is arbitrary, such as a stone pattern, a wood pattern, a geometric pattern, or an abstract pattern.
- Printing may be performed on the surface of the layer A or E layer 5 on which the layer is to be laminated, and then the layer may be laminated with the layer D.
- the surface of the layer D may be printed and then laminated with the layer A or the layer E 5. You may.
- the printing layer 3 is provided on the surface of the crystalline A layer 1 or on the surface of the E layer 5 after laminating and integrating the A layer 1 and the E layer 5 of the amorphous D layer 4.
- the handleability on the printing line is better than applying the printing layer 3 on the surface by back printing.
- the resin binder of printing layer 3 When laminating and integrating A layer 1 and B layer 2, any one of D layer 4 and E layer 5, or E layer 5 and D layer 4 using a bonding agent, the resin binder of printing layer 3
- the type of the resin is not particularly limited, the resin binder of the printing layer 3 is made to have a non-crosslinked or low-crosslinked polyester-based heat-fusing property, so that the sheets laminated by an embossing machine can be used.
- the printed layer 3 When is heated, the printed layer 3 also acts as a heat-fusible adhesive layer. Alternatively, by simultaneously applying a heat fusible coat layer on a printing line, the heat fusibility can be exhibited without separately providing an adhesive layer.
- the printing layer 3 may be partially printed or printed with coarse dots, so that the A layer 1 and the B layer 2 or the A layer 1 and the D layer 4 or the E layer The non-printed portions of the layer 5 and the D layer 4 come into direct contact with each other, so that a stronger heat-sealing property can be obtained.
- Layer A is amorphous or low crystalline until it is passed through the embossing machine. This is because it has a characteristic of exhibiting fusibility when heated by a heat imparting machine.
- Method for Producing Laminated Sheet (A + B) or (A + C + D), (A + E + C + D))
- Method for forming a laminated sheet of the present invention there are various known methods such as extrusion casting. Method Inflation method can be adopted, and calender film forming method can be applied to B layer 2, D layer 4, and E layer 5, which are mainly composed of amorphous polyester resin. , Not particularly limited.
- the layers may be integrally laminated from the beginning by co-extrusion film formation, and in the configuration shown in FIG. 3, the A layer 1 and the E layer 5 may be laminated and integrated from the beginning by co-extrusion film formation. You may make it.
- D layer 4 it is necessary to laminate after printing layer 3 (C layer) is applied to A layer 1 or E layer 5, so that it is necessary to separately form a film.
- the printing of the print layer 3 side of the A layer 1 and the D layer 4 or the E layer 5 is performed in the sheet heating process with the embossing machine. It is preferable that the layer 3 side and the D layer 4 are heat-sealed and laminated from the viewpoint of reducing the number of steps.
- Fig. 5 shows an example of an embossing machine generally used to apply an embossing pattern to a conventional flexible PVC sheet.
- the laminated sheet of the present invention can give an embossed pattern by an embossing machine in the same manner as a conventional flexible PVC sheet. Since the melting point (Tm) of A layer 1 is in the range of 210 ° C to 240 ° C and A layer 1 is in a crystallized state, the heating temperature of the laminated sheet with an embossing machine is 160 ° C or more.
- the laminated sheet does not shrink in width, wrinkle, melt fracture, etc., and has an emboss heat resistance equivalent to or higher than that of a flexible PVC sheet provided with an embossed design by an embossing machine. It is obtained.
- Examples of the metal sheet 6 to be covered by the present invention include various steel sheets such as a hot-rolled steel sheet, a cold-rolled steel sheet, a hot-dip galvanized steel sheet, an electric zinc-plated steel sheet, a tin-plated steel sheet, and a stainless steel sheet.
- a metal plate or an aluminum alloy plate can be used, and may be used after a normal chemical conversion treatment.
- the thickness of the metal plate 6 varies depending on the use of the resin-coated metal plate and the like, but can be selected in the range of 0.1 to 10 mm.
- the adhesive used when laminating the laminated sheet (A + B, A + C + D or A + E + C + D) provided with the embossed pattern by the embossing device to the metal plate 6 is EPO.
- thermosetting adhesives 7 such as xy-based adhesives, urethane-based adhesives, and polyester-based adhesives can be cited.
- thermosetting adhesive 7 is applied so that the thickness of the adhesive is about 2 m to 10 / im.
- the coated surface is dried and heated by an infrared heater and / or a hot-air heating furnace, and while maintaining the surface temperature of the metal plate 6 at an arbitrary temperature, the A layer 1 of the laminated sheet is immediately used using a roll laminator. Cover and cool so that the side is the adhesive surface.
- a resin-coated metal plate as shown in FIG. 4 is obtained.
- the melting point (Tm) of the resin A located on the bonding surface side with the metal plate 6 is in the range of 210 to 240 ° C., the surface temperature of the metal plate 6 is lower than the conventional temperature. Strong adhesive strength can be obtained by making it equivalent to that of a flexible PVC sheet laminate-coated metal plate.
- a resin-coated metal plate having relatively good embossing heat resistance is obtained.However, after lamination, the emboss return due to heating of the sheet during lamination can be reduced by immediately cooling with water. preferable.
- the metal plate 6 obtained by laminating the sheet embossed by the embossing machine shown in Fig. 5 is placed in a hot air circulating oven at 105 ° C for 3 hours, visually observed, and put into an oven.
- “ ⁇ ” indicates that the shape of the embossing has not changed much compared to before, “ ⁇ ” indicates that the embossing has occurred slightly, and “ ⁇ ” indicates that the embossing has notably changed. Those that have completely disappeared and are simply roughened are marked with an “X”.
- a resin-coated metal plate was subjected to an impact adhesion bending test, and the surface state of the decorative sheet in the bent portion was visually judged. The one with almost no change ( ⁇ ), the one with slight cracking ( ⁇ ), What occurred was indicated as (X).
- the impact bending test was performed as follows. 5 Om each from the length direction of the coated metal plate and the width direction After preparing a sample of mx 15 O mm and keeping it at a temperature of 23 ° C for 1 hour or more, a pre-bending of 180 ° (inner bending radius 2 mm) was performed using a bending tester, A cylindrical weight of 75 mm in diameter and 5 kg in mass was dropped on the sample from a height of 50 c so as to crush the pre-bent part.
- a layer 1 and B layer 2 are combined as resin composition and thickness of each layer.
- the film formation of the sheet is based on a general method in which the resin flowing out of the T-die is taken up by a casting roll.
- single-layer sheets were formed using the resin compositions shown in Table 1 or Table 2 by extrusion film formation using a T-die.
- the film formation of the sheet is based on a general method in which the resin flowing out of the T-die is taken up by a casting roll.
- the composition and thickness are described in the list corresponding to layer A1 in Table 1.
- Example 1 20 0 80 0 0 45
- Example 5 30 0 70 0 0 60
- Example 8 20 0 80 0 0 45
- Example 1 0 30 0 70 0 0 25
- Example 1 1 40 0 60 0 0 45
- Example 1 45 0 55 0 0 45
- Example 1 3 20 0 80 0 0 45
- Example 1 4 20 0 80 0 0 25
- Example 1 5 20 0 80 0 0 50
- Example 1 6 20 0 80 0 0 50
- Example 1 7 0 0 100 0 0 45
- Example 1 8 20 0 80 0 0 45
- Example 1 9 20 0 80 0 0 45
- Example 19 Comparative Example 110 Composition and thickness of layer B and tensile strength
- Resin I component (wt%) Pigment 180 ° C before application
- Example 1 80 20 24 105 13.8 170
- Example 8 70 30 24 105 13.1 170
- Example 9 100 0 24 105 12.8 170
- Example 10 100 0 20 125 5.4 170
- Example 12 80 20 24 105 6.8 170
- Example 16 70 30 10 250 14.2 170
- Example 18 80 20 24 105 .13.8 200
- Unmeasurable is determined to be 5MPa or less
- the A layer 1 and the D layer 4 were separately formed into single-layer sheets by extrusion film formation using a T die using a twin screw kneading extruder with a diameter of 65 mm.
- the sheet is formed by a general method of using a casting roll to take out the resin flowing out of the T-die.
- an abstract pattern was printed on the surface of the A layer 1 by gravure printing.
- Table 3 or Table 4 shows combinations of layer composition and thickness.
- a D-layer 4 having the composition and thickness shown in Table 4 was formed as a single-layer sheet by extrusion film formation using a T-die using a twin screw kneading extruder of ⁇ 65 mm.
- the film formation of these sheets is based on a general method in which the resin flowing out of the T-die is taken up by a casting roll.
- an abstract pattern was printed on the surface of the E layer 5 by gravure printing.
- Example 20-28 Comparative Example 12 D-layer composition and thickness, tensile strength
- Cortera CP 509200 Homo PTT resin, Shell, glass transition temperature; C], Crystal melting peak temperature; 225 [° C]
- 'Easter PET-G6763 an amorphous polyester resin in which about 31 mo 1% of the ethylene glycol moiety of polyethylene terephthalate has been substituted with 1,4-cyclohexanedimethanol, manufactured by Yeastman Chemical, glass transition point; 8 1 [° C], Crystal melting peak temperature; not observed [° C]
- PCTG 5445 A polyester resin in which about 7 Omo 1% of the ethylene glycol part of polyethylene terephthalate has been replaced with 1,4 -... hexandimethanol, which can be handled as substantially amorphous.
- Eastman Chemical Co., Ltd. Glass transition point; 88 [° C], Crystal melting peak temperature; Not observed [° C]
- Embossed pattern by continuous embossing machine which is generally used even for the soft vinyl chloride type sheet shown in FIG. Was granted. As described above, some of the printed sheets are heat-sealed and laminated at the heating drum 8 of the embossing machine.
- the outline of the embossing device by the continuous method is as follows. The sheet is preheated by mold heating, then the sheet is heated to an arbitrary temperature by non-contact heating using the infrared heater 9, and the emboss pattern is transferred by the embossing roll 10.
- the heating drum 8 was set at 100 ° C., and then heated by the heater 1 so that the sheet before contact with the embossed pattern roll reached an appropriate temperature shown in each table.
- 11 indicates a take-off roll
- 12 indicates a roll-up roll
- 13 indicates a cooling roll.
- a polyester thermosetting adhesive 7 which is generally used for a polychlorinated vinyl coated metal plate, is applied to a metal surface so that the adhesive film thickness after drying is 2 ⁇ !
- the coated surface is dried and heated by a hot-air heating furnace and an infrared heater 9, and the surface of a zinc-plated steel plate (metal plate 6: 0.45 mm thick) is coated.
- the temperature was set at 235 ° C, the polyester resin sheet was immediately coated with a roll laminator, and the sheet was cooled with water to produce a metal sheet coated with an embossed design sheet.
- Comparative Example 1 2 X X Comparative Examples 1 and 2 are single-layer sheets mainly composed of an amorphous polyester resin. The tensile breaking strength at 180 ° C was low, causing sticking to the heating drum 8 of the embossing machine, making subsequent work difficult.
- Comparative Examples 3 and 4 are single-layer sheets mainly composed of a crystalline polyester resin, and a homocrystalline PBT resin having a high crystallization rate is used as the crystalline resin, so that a state of high crystallinity at the time of extrusion film formation is obtained. No sticking to the heating drum 8 occurred, but even if the sheet was heated to 170 ° C, a high elastic modulus was maintained due to crystallinity, and the embossed pattern could be transferred.
- the composition of the A layer 1 conforms to the scope of the present invention
- the composition of the B layer 2 is not mainly composed of amorphous polyester, and crystallization progresses during heating by an embossing machine to form an embossed pattern.
- an embossing machine to form an embossed pattern.
- Comparative Example 6 shows that the composition of layer A 1 and layer B matches the range of the present invention, but the tensile strength at 180 ° C. is out of the range of the present invention due to the small thickness of layer A 1. As a result, when the sheet was heated, remarkable wrinkling and width shrinkage occurred, and it was not possible to transfer a preferable enboss pattern.
- Comparative Example 7 a sheet having the same composition and composition as Comparative Example 6 was used, and the sheet heating temperature in the embossing machine was 140. (: No problem such as wrinkling of the sheet occurred, and a good transfer of the embossed pattern was obtained. However, the heat resistance of the emboss was low and it was judged that the embossed pattern was not practically usable.
- the composition of the B layer 2 conforms to the range of the present invention
- the composition of the A layer 1 is not mainly composed of a crystalline polyester resin, and has a low tensile breaking strength at 180 ° C.
- sticking to the heating drum 8 of the embossing machine occurred, and subsequent work became difficult.
- Comparative Example 10 Although the compositions of the A layer 1 and the B layer 2 were within the scope of the present invention, a preferable embossed pattern could not be transferred due to the small total thickness.
- Examples 1 to 19 of the present invention good emboss pattern transferability was obtained without causing sticking to the heating drum 8 and breaking of the sheet during heating of the heater. Also, the heat resistance of the embossed pattern and the workability of the resin-coated metal plate are good.
- Comparative Example 11 is a single-layer sheet printed on the surface, and the composition of the sheet Since itself is mainly composed of PBT lumber like Comparative Examples 3 and 4, the tensile breaking strength at 180 ° C shows a strong value, and the adhesion to the heating drum 8 and the elongation of the sheet However, the embossed pattern cannot be transferred.
- Comparative Example 12 Although the compositions of the A layer 1, the E layer 5, and the D layer 4 conformed to the range of the present invention, the tensile rupture strength at 180 ° C due to the small thickness of the A layer 1 However, when the sheet was heated, remarkable wrinkling and width shrinkage occurred, and transfer of a preferable embossed pattern could not be performed.
- Examples 20 to 28 having the print layer 3 of the present invention good embossed pattern transferability was obtained without causing adhesion to the heating drum 8 or sheet breakage during heating of the heater. Have been. Also, the heat resistance of the embossed pattern and the workability of the resin-coated metal plate are good.
- Example 21 in which the thickness of the D layer 4 was large, the transparency of the printed layer 3 was slightly poor, but in Example 22 in which the E layer 5 was provided and the thickness of the D layer 4 was reduced. In Example 23, the transparency of the printed layer 3 was good, and the transferability of the emboss was not different from that of Example 20.
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Abstract
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KR (1) | KR100741240B1 (ja) |
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TW (1) | TW200524731A (ja) |
WO (1) | WO2004098883A1 (ja) |
Cited By (8)
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JP2006297917A (ja) * | 2005-03-23 | 2006-11-02 | Riken Technos Corp | 積層化粧シート |
JP2007022047A (ja) * | 2005-07-21 | 2007-02-01 | Mitsubishi Plastics Ind Ltd | 金属板被覆用積層シート、および積層シート被覆金属板 |
JP2007213034A (ja) * | 2006-01-12 | 2007-08-23 | Tomoharu Oana | プラスチックミラー積層体 |
JP2007237568A (ja) * | 2006-03-08 | 2007-09-20 | Mitsubishi Plastics Ind Ltd | 積層シ−ト、エンボス意匠シートおよびエンボス意匠シート被覆金属板 |
JP2010094890A (ja) * | 2008-10-16 | 2010-04-30 | Mitsubishi Plastics Inc | 樹脂被覆金属板用積層シ−ト、該積層シートの製造方法、および、意匠性積層シート被覆金属板、ユニットバス部材、建築内装材、および、鋼製家具部材 |
JP2012048246A (ja) * | 2006-01-12 | 2012-03-08 | C I Kasei Co Ltd | プラスチックミラー積層体 |
JP2013520001A (ja) * | 2010-02-10 | 2013-05-30 | タタ、スティール、ネダーランド、テクノロジー、ベスローテン、フェンノートシャップ | 太陽電池を金属基材上に製造する積層システム、および該積層システムを製造する方法 |
JPWO2017115779A1 (ja) * | 2015-12-28 | 2018-08-30 | 日本ゼオン株式会社 | 光学積層体及びその製造方法、偏光板及び表示装置 |
Families Citing this family (5)
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KR100728662B1 (ko) * | 2006-06-26 | 2007-06-14 | 도레이새한 주식회사 | 친환경 인테리어 시트 |
KR100908008B1 (ko) * | 2008-04-25 | 2009-07-16 | 주식회사 폴리쉘 | 발포시트 제조방법 |
CN102514310A (zh) * | 2011-12-07 | 2012-06-27 | 常熟市东涛金属复合材料有限公司 | 一种复合金属板 |
WO2015072500A1 (ja) * | 2013-11-18 | 2015-05-21 | 東レ株式会社 | 成形体、およびその製造方法 |
JP6295092B2 (ja) * | 2014-01-31 | 2018-03-14 | 日鐵住金建材株式会社 | 化粧板用樹脂フィルム、化粧板の製造方法、及び化粧板 |
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JP2002210905A (ja) * | 2001-01-17 | 2002-07-31 | Mitsubishi Plastics Ind Ltd | 熱溶着包装用ポリエステル系樹脂シート及びそれを用いた包装体 |
JP2002212402A (ja) * | 2001-01-17 | 2002-07-31 | Mitsubishi Plastics Ind Ltd | 熱溶着包装用ポリエステル系樹脂シート及びそれを用いた包装体 |
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KR101071622B1 (ko) * | 2002-12-26 | 2011-10-10 | 미쓰비시 쥬시 가부시끼가이샤 | 수지 피복 금속판, 수지 피복 금속판용 의장 시트 및 수지피복 금속판의 제조 방법 |
JP4654084B2 (ja) * | 2005-07-21 | 2011-03-16 | 三菱樹脂株式会社 | 金属板被覆用積層シート、および積層シート被覆金属板 |
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2004
- 2004-05-10 JP JP2005506054A patent/JP4898220B2/ja not_active Expired - Lifetime
- 2004-05-10 WO PCT/JP2004/006575 patent/WO2004098883A1/ja active Application Filing
- 2004-05-10 KR KR1020057021244A patent/KR100741240B1/ko not_active IP Right Cessation
- 2004-05-10 CN CN2004800126004A patent/CN1787916B/zh not_active Expired - Fee Related
- 2004-05-10 TW TW093113080A patent/TW200524731A/zh not_active IP Right Cessation
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JPH03218830A (ja) * | 1989-11-29 | 1991-09-26 | Sekisui Chem Co Ltd | 複合包装材料とそれを用いた包装容器 |
JPH0655717A (ja) * | 1992-08-11 | 1994-03-01 | Polyplastics Co | 積層ポリエステルフィルム |
JP2002210905A (ja) * | 2001-01-17 | 2002-07-31 | Mitsubishi Plastics Ind Ltd | 熱溶着包装用ポリエステル系樹脂シート及びそれを用いた包装体 |
JP2002212402A (ja) * | 2001-01-17 | 2002-07-31 | Mitsubishi Plastics Ind Ltd | 熱溶着包装用ポリエステル系樹脂シート及びそれを用いた包装体 |
JP2002337295A (ja) * | 2001-05-14 | 2002-11-27 | Toppan Printing Co Ltd | 化粧シート |
JP2002337296A (ja) * | 2001-05-14 | 2002-11-27 | Toppan Printing Co Ltd | 化粧シート |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006297917A (ja) * | 2005-03-23 | 2006-11-02 | Riken Technos Corp | 積層化粧シート |
JP2007022047A (ja) * | 2005-07-21 | 2007-02-01 | Mitsubishi Plastics Ind Ltd | 金属板被覆用積層シート、および積層シート被覆金属板 |
JP4654084B2 (ja) * | 2005-07-21 | 2011-03-16 | 三菱樹脂株式会社 | 金属板被覆用積層シート、および積層シート被覆金属板 |
JP2007213034A (ja) * | 2006-01-12 | 2007-08-23 | Tomoharu Oana | プラスチックミラー積層体 |
JP2012048246A (ja) * | 2006-01-12 | 2012-03-08 | C I Kasei Co Ltd | プラスチックミラー積層体 |
JP2007237568A (ja) * | 2006-03-08 | 2007-09-20 | Mitsubishi Plastics Ind Ltd | 積層シ−ト、エンボス意匠シートおよびエンボス意匠シート被覆金属板 |
JP2010094890A (ja) * | 2008-10-16 | 2010-04-30 | Mitsubishi Plastics Inc | 樹脂被覆金属板用積層シ−ト、該積層シートの製造方法、および、意匠性積層シート被覆金属板、ユニットバス部材、建築内装材、および、鋼製家具部材 |
JP2013520001A (ja) * | 2010-02-10 | 2013-05-30 | タタ、スティール、ネダーランド、テクノロジー、ベスローテン、フェンノートシャップ | 太陽電池を金属基材上に製造する積層システム、および該積層システムを製造する方法 |
JPWO2017115779A1 (ja) * | 2015-12-28 | 2018-08-30 | 日本ゼオン株式会社 | 光学積層体及びその製造方法、偏光板及び表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4898220B2 (ja) | 2012-03-14 |
TW200524731A (en) | 2005-08-01 |
KR100741240B1 (ko) | 2007-07-19 |
TWI337938B (ja) | 2011-03-01 |
JPWO2004098883A1 (ja) | 2006-07-13 |
CN1787916B (zh) | 2010-05-12 |
CN1787916A (zh) | 2006-06-14 |
KR20060013650A (ko) | 2006-02-13 |
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