TW201722703A - Method of producing laminate - Google Patents

Abstract

The invention provides method of producing laminate, the method capable of producing a laminate having a metal pattern on a support body by high speed and without cutting remains in step of forming the metal pattern, and having good conveyance for the support body. More concretely, the invention providing method of producing laminate includes a laminating step in which a thin metal film in a long shape having thickness of 1~50 [mu]m is formed on a support body having thickness of 9~250 [mu]m to make a long laminate 10 having a support body 11 and a thin metal film 12, and a cutting step in which apply tension to carry the long laminate 10 while push a pack roll having a convex portion 33 against the support body 11 to make a portion of the laminate 10 become convex, and make a cutting roll 30 having minute jaggedness rotate and contact the thin metal film 12 side of the laminate 10, wherein in the portion which became convex, the thin metal film 12 is cut without remains so as to expose the support body 11, thereby forming a metal pattern 14 on the support body 11.

Description

Method for manufacturing laminate

The present invention relates to a method of producing a laminate including a metal pattern on a support such as plastic.

The present application claims priority based on Japanese Patent Application No. 2015-175728, the entire disclosure of which is hereby incorporated by reference.

As a laminate including a metal pattern on a support such as a plastic, a wiring circuit, an electromagnetic wave shielding material, an electromagnetic wave transmission line, or the like is used. As an example of such, for example, a heat generating sheet which can generate heat by electric heating (Joule heat).

Patent Document 1 discloses that a heat generating resist is applied to a substrate to form an electrode, and a heat-resistant resist paint is applied thereon to form a planar heat-generating layer. Further, a heat-generating sheet using a surface-coated coating film is further described.

Further, Patent Document 2 discloses that the heat generating member and the strip electrode are each formed of a fibrous material, and the flexible heat generating body of the covering member is provided in such a manner as to be wrapped therein.

Further, Patent Document 3 discloses that two conductive sheets are overlapped with each other, a gap is left at the edge portion to insert the resin material in the center portion, and an integral sheet shape is formed by heat press bonding, and then the electrode lines are disposed at the edge portions. A method of manufacturing a heat-bonded heat-sealed sheet.

A conventional method for manufacturing a heat generating sheet is to form an electrode and a heat generating layer on a substrate, but the electrode is expensive to manufacture. For example, when using metal etching, in addition to being difficult to produce quickly, the metal is slowly dissolved in the etching solution. A large amount of waste liquid is produced, and the processing cost is also increased. In pattern vapor deposition (vapor deposition mask, separation, etc.), in order to obtain the amount of adhesion (film thickness) required for the electrode, the processing speed is slow, and expensive vacuum equipment is required, and customization of the design is also required. cost.

[Previous Technical Document]

[Patent Document]

Patent Document 1: Japanese Patent Laid-Open No. Hei 5-326116

Patent Document 2: Japanese Patent Laid-Open No. Hei 11-339934

Patent Document 3: Japanese Patent No. 5153472

The present invention has been made in view of the above circumstances, and an object of the invention is to provide a method for producing a laminate, which can produce a laminate having a metal pattern on a support at a high speed. Moreover, in the manufacturing method of a laminated body, in the manufacturing process of a metal pattern, the metal film has no cutting residue, and the conveyance of a support body is favorable.

In order to solve the above problems, the present invention provides a method for producing a laminate, comprising the steps of forming a metal thin film, forming a long metal film having a thickness of 1 to 50 μm on a support having a thickness of 9 to 250 μm to form a long film. And a cutting step of applying a tension to the laminate to push the pressure roller having the convex portion to the support of the laminate to make the laminate A part of the metal film is not convex, and the cutting roller having the fine unevenness is rotated while contacting the side of the metal thin film of the laminate. In the convex portion, the metal film is not exposed so that the support is exposed. The cutting is performed to form a metal pattern on the aforementioned support.

The aforementioned support is desirably composed of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimine (PI), polyamine (PA), and polyolefin. A formed plastic film.

The aforementioned metal film is desirably one of aluminum, copper, and stainless steel.

The metal thin film forming step is desirably a lamination step using a binder, which is a polyurethane adhesive, a polyester fiber adhesive, a polyolefin adhesive, an epoxy resin adhesive, and an ether adhesive. One of the agents.

The pinch roller desirably has a planar base material wound around a roll, and the planar base material has a pattern-like convex portion.

When the thickness of the metal thin film is set to T1, the thickness of the support is T2, the thickness of the adhesive layer made of the adhesive is T3, and the height of the convex portion of the pressure roller is T4, it is desirable to satisfy the formula. Sub: T1≦T2, and T1+T2+T3<T4.

The manufacturing method may include a coating step of applying a paste containing a conductive powder and a binder to two or more of the metals on the laminate having the metal pattern on the support after the cutting step a pattern and a step of forming a conductive layer on the aforementioned support exposed around the periphery

Further, the manufacturing method may include a cutting step of cutting the laminate so that the metal pattern is left at both ends after the coating step.

Further, the manufacturing method may include a moisture-proof step of laminating the moisture-proof sheet on both sides of the support, the metal pattern, and the conductive layer after the cutting step.

The conductive layer is a heat that generates heat by energizing the metal pattern. The layer, and the aforementioned laminate may be a heat generating sheet.

According to the present invention, after the metal thin film is uniformly formed on the support by using the adhesive, since the metal pattern is formed by mechanically cutting the metal thin film, the adhesion strength of the metal pattern to the support is high, and the support of the long shape can be manufactured at high speed. A laminate having a metal pattern thereon. The metal film removed by the cutting does not become a waste liquid, so it can be easily recovered and treated.

10‧‧‧ (obtained in the lamination step)

11‧‧‧Support

12‧‧‧Metal film

13‧‧‧Binder layer

14‧‧‧Metal pattern

15‧‧‧Support body exposure

16‧‧‧ (through the cutting step) laminate

17‧‧‧ Conductive layer

18‧‧‧ (through the coating step) laminate

19‧‧‧ (through the cutting step) layered body

20‧‧‧ (through the moisture-proof step)

21, 22‧‧‧ moisture-proof tablets

23‧‧‧The Peripheral Department

30‧‧‧ cutting roll

31‧‧‧ bump

32‧‧‧Pressure roller

33‧‧‧ convex

34‧‧‧ recess

40‧‧‧ Coating device

51, 52‧‧ ‧ cutting line

Fig. 1(a) is a cross-sectional view showing a lamination step, Fig. 1(b) is a cross-sectional view showing a laminate obtained by a lamination step, and Fig. 1(c) is a view showing a step of passing through a cutting step. A cross-sectional view of the laminate.

Fig. 2 is a side view showing a cutting step.

Fig. 3 is a perspective view showing a laminate which has undergone a cutting step.

Fig. 4 is a perspective view showing a coating step.

Fig. 5 is a perspective view showing a cutting step.

Fig. 6 is a perspective view showing a laminate which has undergone the cutting step.

Fig. 7 is a cross-sectional view showing a laminate which has undergone the cutting step.

Figure 8 is a cross-sectional view showing a laminate which has passed through a moisture-proof step.

The invention is illustrated below on the basis of appropriate embodiments and with reference to the drawings. The drawing is a schematic diagram, and the shape and size ratio of each part may be different from the actual structure. In particular, the thickness direction of the laminate or the like is emphasized in such a manner that the scale is larger than the surface direction.

(a) of Fig. 1 is an explanatory view showing a lamination step. In the laminating step, the support 11 and the metal thin film 12 are laminated by using a binder; as shown in (b) of FIG. 1, a laminate 10 in which the support 11 and the metal thin film 12 are bonded through the adhesive layer 13 is produced. .

As the support 11, a long-shaped film mainly composed of plastic or the like is desirable. Specific examples of the support 11 composed of plastic, for example, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), other polyester fibers, polyimine (PI), nylon And a plastic film formed of polyamine (PA), polyethylene (PE), polypropylene (PP), other polyolefins, polycarbonate (PC), or the like. These plastic films are desirably a stretch film of a biaxially stretched film or the like. The thickness of the support 11 is desirably 9 to 250 μm, more desirably 10 to 200 μm, and most desirably 20 to 150 μm. In the case where the support 11 is thin, the protective film can be overlapped at the time of conveyance.

Further, as the support 11, a material which can be formed by a glass cloth or a non-woven fabric can be used. The support 11 desirably has electrical insulation (insulator) or at least a surface electrically insulated from the metal thin film 12.

As the metal thin film 12, the metal pattern 14 after the cutting is used as an electrode, and any material having conductivity can be used. However, it is desirable to form a metal thin film having a long shape from a metal. The metal constituting the metal thin film 12 is specifically, for example, aluminum, copper, stainless steel or the like. Considering the main points of usability and price, the desirable metal is aluminum. Consider the points of weldability, etc. The desirable metal is copper. The thickness of the metal thin film 12 is desirably 1 to 50 μm, more desirably 5 to 45 μm. The metal thin film 12 is desirably conveyed in parallel with the support 11 in a state where layers are separately laminated or laminated on other sheets, and a metal foil is desirable.

Further, surface modification can be performed on the metal thin film 12. Metal figure after cutting The electrode constructed in the case 14 can be connected to an external circuit. In this case, the manner of bonding the electrodes is not particularly limited. The application of the conductive paste to be described later is not limited to the contact type such as the above-described soldering, and a contactless charging method (non-contact type) such as Qi (wireless power supply) technology can be employed.

As the lamination method, for example, dry lamination, wet lamination, thermal lamination, extrusion lamination, hot melt lamination, or the like. Among them, a dry lamination in which a binder is applied to the support 11 and overlapped with the metal thin film 12 after drying is desired. Examples of the binder include a urethane-based adhesive, a polyester-based adhesive, a polyolefin-based adhesive, an epoxy-based adhesive, and an ether-based adhesive. The thickness of the adhesive layer 13 is, for example, 0.1 to 10 μm.

The method of manufacturing the laminate 10 in which the metal film 12 is formed on the support 11 is not limited to the lamination step, and may be another metal thin film formation step. As a metal thin film formation method, for example, vapor deposition, plating, lamination without using a binder, or the like.

The resulting laminate 10 is a long shape. In order to stabilize the bonding strength, after the laminating step, it is desirable to wind the laminated body 10 into a roll and supply it to the cutting step after storage at a predetermined temperature (aging).

(c) of Fig. 1 shows an example of the laminated body 16 that has passed through the cutting step. In the laminate 16, a part of the metal thin film 12 and the adhesive layer 13 are left together to form the metal pattern 14, but in a region other than the metal pattern 14 (the support exposed portion 15), the support 11 is exposed. The metal film 12 is cut in a manner.

Fig. 2 is an explanatory view showing a cutting step. In the cutting step, the laminated body 10 is conveyed between the cutting roll 30 and the pack roll 32 while applying tension to the laminated body 10 obtained in the laminating step. The cutting roller 30 is disposed in a laminate On the side of the metal thin film 12 of 10, the pinch roller 32 is disposed on the side of the support 11 of the laminated body 10. In addition, in the second figure, the illustration of the adhesive layer 13 is omitted (the same applies to the third to sixth figures).

A pattern of the convex portion 33 and the concave portion 34 is formed on the surface of the pressure roller 32. The position and shape of the convex portion 33 correspond to the support exposed portion 15, and the position and shape of the concave portion 34 correspond to the metal pattern 14. The convex portion 33 of the pinch roller 32 is desirably formed on a planar substrate which can be separated from the body (roll portion) of the pinch roller 32. The substrate having the pattern-like convex portion 33 is wound on the body roller to constitute the pinch roller 32, whereby the pattern of the convex portion 33 can be easily changed. The height of the convex portion 33 is, for example, 50 to 500 μm.

By pushing the convex portion 33 from the side of the support 11 to the laminated body 10, a part of the laminated body 10 is raised to be convex and contacts the cutting roller 30. On the surface of the cutting roll 30, fine irregularities 31 are formed, and when the cutting roll 30 is rotated at a high speed, the metal thin film 12 which is convex by the convex portion 33 and is in contact with the uneven 31 is cut, and the laminated body 10 is cut. Was removed. At this time, it is desirable that the binder 13 and the metal film 12 are removed together. The chips can be recovered in a timely manner by vacuum suction or the like.

In the case where the long-shaped laminated body 10 is composed of the metal thin film 12, the adhesive layer 13, and the support 11, the thickness of the metal thin film 12 is T1, the thickness of the support 11 is T2, and the thickness of the adhesive layer 13 is When T3 and the height of the convex portion 33 of the pinch roller 32 are T4, it is desirable to satisfy T1≦T2 and T1+T2+T3<T4. If the case where the adhesive layer 13 is not included is included in the generalization, the thickness of the long-shaped laminated body 10 produced by the metal thin film forming step is T5, and it is desirable to satisfy T1≦T2 and T5<T4. When the T1 is too large compared to T2, the metal thin film 12 is removed until the support 11 is exposed, which takes time and reduces productivity. Compared with the thickness of T1+T2+T3 (or the total thickness T5 of the laminate 10), T4 When the amount of the convex portion 33 is too small, the surface undulation of the metal thin film 12 becomes inconspicuous, and it is difficult to selectively remove the metal thin film 12 on the convex portion 33. On the concave portion 34 of the pressure roller 32, the laminate 10 is in contact with the surface of the concave portion 34 on the side of the support 11, and may not be in contact. It is desirable to adjust the tension of the laminated body 10, the radius of the pressure roller 32, and the like so that the laminated body 10 is easily bent along the surface of the convex portion 33.

Fig. 3 shows an example of the laminate 16 subjected to the cutting step. In the support 11, the metal patterns 14 are separated and regularly arranged in the longitudinal direction and the width direction of the laminated body 16, and the periphery of the metal pattern 14 serves as the support exposed portion 15. Fig. 3 shows a cross section in the width direction of the proximal side of the support 11, and is shown on the inner side as a wavy line, and both sides in the longitudinal direction are omitted (the same applies to Figs. 4 and 5).

When the metal thin film 12 is formed on the entire surface of the support 11 after the metal thin film 12 is formed, the portion of the metal thin film 12 is removed as a metal pattern 14 by the cutting, so that the metal pattern 14 has high adhesion to the support 11 . And it is high strength. Compared with etching, the removed metal does not become waste liquid and is recovered as dust, so the treatment cost is low and it can be reused as scrap metal. Moreover, when the method of etching the foil is used, the masking material for lithography and the step of bonding it are generated in the step of lithographic imaging and the waste liquid after use, although the cutting step is not only slow in processing speed, and although A dense pattern can be formed, but it takes time. In order to increase the processing speed, an initial investment for increasing the etching bath is required. Therefore, when considering the overall manufacturing cost, the disadvantage of etching is relatively unworthy.

Fig. 4 shows an example of a coating step. The coating step can be performed after the cutting step. On the laminate 16 having the metal pattern 14 on the support 10, the conductive paste is applied to the two or more metal patterns by the coating device 40. The conductive layer 17 is formed on the support exposed portion 15 between and around the metal pattern 14 and around the metal pattern 14. The conductive paste contains a conductive powder (particle) as a conductive material, and contains a binder as a binder of the conductive powder. As the conductive powder, a metal powder such as silver or a carbon powder is desirable. The binder is, for example, a composition containing a resin. After coating, a drying step and a sintering step of the conductive paste may be performed.

The laminate 18 subjected to the coating step has a conductive layer 17 that connects two or more metal patterns 14. When the conductive layer 17 is continuously formed in the longitudinal direction (transport direction) of the support 11, it is desirable because of its superior productivity.

Fig. 5 shows an example of the cutting step. Further, Fig. 6 shows an example of the laminated body 19 which has passed through the cutting step. In the cutting step, the laminated body 18 having the long shape of the metal pattern 14 and the conductive layer 17 on the support 11 is cut to produce a sheet-like laminated body 19 having the metal pattern 14 at both ends. In the example shown in FIG. 5, the cutting line 51 extending in the width direction of the support 11 and the cutting line 52 extending in the longitudinal direction of the support 11 are set. The cutting line 51 in the width direction is provided at a position where the metal pattern 14 is cut, and the cutting line 52 in the longitudinal direction is provided at a position where the metal pattern 14 and the conductive layer 17 are not formed on the support 11.

The laminate 19 subjected to the cutting step has metal patterns 14 on opposite sides. As shown in the cross-sectional view of Fig. 7, the metal patterns 14 at both ends are not directly connected, and a conductive layer 17 is formed on the exposed portion 15 of the support. Therefore, when electricity is supplied between the metal patterns 14 at both end portions, a current can flow through the conductive layer 17. The conductive layer 17 can generate heat as a heat generating layer by energizing the metal pattern 14 when the electrical resistance is relatively large as compared with the metal pattern 14. Thereby, the laminated body 19 can be used as a heat generating sheet. The resulting The heating sheet can be used for various purposes such as agricultural use, melting snow, preventing condensation, warm room, heat preservation, and indoor use.

In the laminate 19 subjected to the cutting step, since the metal pattern 14 is exposed on the cut surface, it is desirable to perform the moisture-proof step in order to suppress corrosion, deterioration, and the like of the metal. The moisture-proof step can be carried out by coating or the like of the moisture-proof material. As shown in Fig. 8, it is desirable to laminate the moisture-proof sheets 21 and 22 on both sides of the laminate 19. As the material of the moisture-proof sheets 21, 22, a plastic having thermal adhesiveness is desirable. In the laminate 20 subjected to the moisture-proof step, the moisture-proof sheets 21 and 22 are joined to each other in the peripheral portion 23 of the support 11, whereby the intrusion of moisture can be effectively suppressed. In order to energize the metal pattern 14 as an electrode from the outside of the moisture-proof sheets 21 and 22, a part of the metal pattern 14 is exposed, and for example, a method of taking out the lead wire from the metal pattern 14 is performed.

The present invention has been described above on the basis of a suitable embodiment, but the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the invention.

Each step of processing the long film of the metal thin film forming step, the laminating step, the cutting step, etc., desirably starts from the state in which the long film is wound into a roll, and is used in the film fed from the roll The processing is carried out during transportation, and the processed film is re-wound into a roll, that is, a so-called roll-to-roll process.

The film material formed on the support and patterned by the cutting step may be a material other than metal. In the coating step, the coating material applied over the pattern may be a material other than the conductive paste.

In the laminate of the present invention, a wiring circuit, an electromagnetic wave shielding material, an electromagnetic wave transmission line, or the like can be used.

[Examples]

(stacking step)

The metal foil (metal thin film) described in Table 1 and the plastic film (support) were laminated by using the adhesive described in Table 1, and a long laminated body A composed of a metal foil and a plastic film (support) was produced. 1~A-6.

[Examples 1 to 6 Manufacture of laminates B-1 to B-6]

(cutting step)

The long-shaped laminates A-1 to A-6 obtained by the "stacking step" are sent and conveyed to perform a cutting step on the metal thin film side. As a cutting roller, it is used with longitudinal. horizontal. a roller having a scaly unevenness having a height of about 2 mm × 2 mm × 2 mm; as a pinch roller, a metal film having a base portion having a convex portion height of 300 μm and having a patterned photo-resin layer formed thereon is used on the surface of the metal plate. The cutting is performed, and the laminates B-1 to B-6 having the metal pattern as shown in Fig. 3 are produced on the support. Table 2 shows the evaluation in the cutting step.

(Evaluation of conveyance in the cutting step)

The conveyance in the above cutting step was evaluated by the following criteria.

○: The raw material roll can be processed without problems from the beginning to the end.

△: Although the raw material roll has slight wrinkles from the beginning to the end, it can be processed while being adjusted.

X: The raw material roll was wrinkled and broke once or more from the beginning to the end.

(Evaluation of cutting residue of metal film in the cutting step)

The laminate cut by the cutting step was rolled up, and an arbitrary portion of 10 m ² was visually observed from the roll, and evaluated according to the following criteria.

○: The amount of cutting residue is smaller than the amount of cutting residue generated in the laminate B-2.

△: the amount of cutting residue generated in the laminate B-2.

×: The amount of cutting residue is larger than the amount of cutting residue generated in the laminate B-2.

[Examples 7 to 12 and Comparative Examples 1 and 2, heat generating sheets C-1 to C-6, Manufacture of E-1 and E-2]

(coating step)

While the laminates B-1 to B-6 obtained by the "cutting step" are conveyed, the carbon slurry of the company is coated on the support film and the metal pattern as shown in Fig. 4 Paste (JELCON CH-10), a laminate in which a band-shaped carbon paste layer was formed.

(cutting step)

While being conveyed in the longitudinal direction of the support film obtained by the "coating step", and cutting in the longitudinal direction by slitting, the width direction is cut by a cutter to have an aspect ratio of 20 cm × 20 cm as shown in Fig. 6 Sheet-like laminate.

(moisture resistance step)

A polyethylene film (moisture-proof sheet) having a thickness of 100 μm was laminated on both sides of a sheet-like laminate obtained by the "cutting step" to produce heat-generating sheets C-1 to C-6 which were subjected to moisture-proof processing. The relationship between the laminates B-1 to B-6 obtained by the "cutting step" and the evaluation of the heat generating sheets are shown in Table 3.

(Comparative Example 1)

A part of the long-shaped PET film was coated with a conductive silver nanoparticle paste by screen printing to form a long-shaped laminate D-1. This laminate D-1 was passed through the coating step, the cutting step, and the moisture-proof step in the same manner as the laminate C-1 to produce the heat-generating sheet E-1. The evaluation of the heat generating sheet E-1 is shown in Table 3.

(Comparative Example 2)

Coating carbon from Ten Chemical Co., Ltd. on a long-shaped PET film In the paste (JELCON CH-10), a portion of the plane of the conductive silver nanoparticle paste was formed into a plurality of patterns to form an electrode, and a sheet-like laminate D-2 was produced. The laminate D-2 is thus subjected to a moisture-proof step to produce a heat generating sheet E-2. The evaluation of the heat generating sheet E-2 is shown in Table 3.

(Evaluation of heat efficiency)

The heat generation efficiency of the obtained heat generating sheet was evaluated by the following criteria.

○: The heat generation efficiency is high.

△: The heat generation efficiency is slightly lower.

×: The heat generation efficiency is quite low.

The reason why the heat generation efficiency of the heat generating sheets E-1 and E-2 is not good is estimated from the impedance ratio (reciprocal of the electrical conductivity) of the material used for the electrode, since it is conceivable that the aluminum foil is of the order of 10 ^-8 Ωm and the silver is 10 ^{- The} magnitude of ⁴ Ωm, although not a big difference, is considered to be a difference that cannot be ignored when considering the use in years, so the evaluation is △.

(productive evaluation)

The completion speed of the electrode pattern is compared at the processing speed.

○: Cutting with a desired level difference can be performed by cutting processing of 30 m/min or more.

△: Cutting with a desired level difference can be performed with a cutting process of more than 10 m/min but less than 30 m/min.

X: Cutting with a desired level difference can be performed with a cutting process of less than 10 m/min.

For example, in the method of forming the electrode patterns of the laminates A-1 to A-6, the PET film and the aluminum foil are bonded at a speed of 60 m/min, and then the step of performing the cutting process at 60 m/min is performed. So it is essentially a processing speed of 30m/min. However, in the laminate A-2, since the thickness of the aluminum foil is 50 μm, the time for cutting is required, so the cutting speed becomes less than 60 m/min.

Since the method of forming the electrode patterns of the laminates D1 and D-2 uses screen printing, it is necessary to sufficiently dry the paste, and even if the length of the furnace is lengthened to increase the processing speed, the processing speed is 2 to 10 m/min. To the extent, it can be understood that the processing by the method of the present invention enables processing at high speed.

10‧‧‧ (obtained in the lamination step)

11‧‧‧Support

12‧‧‧Metal film

13‧‧‧Binder layer

14‧‧‧Metal pattern

15‧‧‧Support body exposure

16‧‧‧ (through the cutting step) laminate

Claims (10)

A method for producing a laminate comprising a step of forming a metal thin film, forming a long metal film having a thickness of 1 to 50 μm on a support having a thickness of 9 to 250 μm to form a laminate having a long shape; and cutting In the step of applying the tension to convey the laminate, the pinch roller having the convex portion is pushed against the support of the laminate, so that a part of the laminate is convex and has a fineness. When the cutting roller of the unevenness is in contact with the metal thin film side of the laminate, the metal film is cut without being left in the convex portion, and the support is formed on the support. Metal pattern. The method for producing a laminate according to claim 1, wherein the support is polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or polyimine ( A plastic film formed by one of PI), polyamine (PA), and polyolefin. The method for producing a laminate according to claim 1 or 2, wherein the metal thin film is one of aluminum, copper, and stainless steel. The method for producing a laminate according to any one of claims 1 to 3, wherein the metal thin film forming step is a lamination step using a binder, and the binder is a polyurethane adhesive or polyester fiber. It is one of a binder, a polyolefin-based adhesive, an epoxy resin-based adhesive, and an ether-based adhesive. Fabrication of a laminate as described in one of claims 1 to 4 In the method, the pressure roller is wound around a roller, and the planar substrate has a pattern-like convex portion. The method for producing a laminate according to the fourth aspect of the invention, wherein the thickness of the metal thin film is T1, the thickness of the support is T2, the thickness of the adhesive layer made of the adhesive is T3, and When the height of the convex portion of the pressure roller is T4, the following expression is satisfied: T1≦T2, and T1+T2+T3<T4. The method for producing a laminate according to any one of claims 1 to 6, further comprising a coating step, after the cutting step, on the laminate having the metal pattern on the support, A paste containing a conductive powder and a binder is applied to the two or more metal patterns and the support exposed therearound to form a conductive layer. The method for producing a laminate according to claim 7, further comprising a cutting step of cutting the laminate by leaving the both ends of the metal pattern after the coating step. The method for manufacturing a laminate according to claim 8, further comprising a moisture-proof step, after the cutting step, laminating the moisture-proof sheet on both sides of the support, the metal pattern, and the conductive layer . Manufacture of a laminate as described in one of claims 7 to 9 In the method, the conductive layer is a heat generating layer that generates heat by energizing the metal pattern, and the laminated body is a heat generating sheet.