JP2003532529A - Method and apparatus for producing thin layer structure - Google Patents

Abstract

  (57) [Summary] The present invention provides a thin-layer structure from a flexible, for example, quasi-infinite, strip-shaped carrier, by applying at least one functional coating affixed to the carrier, especially having a thickness on the order of the carrier. About the method. The method comprises forming a base layer structure by applying the coating base material to the carrier in a layered manner, forming a functional coating from the coating base material by drying and / or thermal cross-linking, and simultaneously attaching the coating to the carrier. The carrier coated with the base material is irradiated with electromagnetic radiation containing an active ingredient in the near infrared region.

Description

Detailed Description of the Invention

Description The present invention relates to a method for producing a thin laminated structure according to claim 1 which is characterized in advance, and an apparatus for carrying out this method.

Structures consisting of thin layers supported by large area thin carriers are becoming increasingly important in various fields of technology. Examples of economically very important conventional examples include a thin film transistor structure used in a liquid crystal display structure and other thin film system for a display unit such as a plasma display. Other thin-layer devices of technological and economic importance include electrochemical device isolation structures, such as lithium-based primary or secondary devices (such as lithium batteries and lithium-ion batteries), or material isolation. There are well-differentiated membrane systems for obtaining energy such as fuel cells.

In order to produce such a thin layer system, it is usually necessary to convert the thin coating in its initial state, which is applied to a thin carrier, into a functional layer, which is fixed to the carrier. The purpose is to perform processing with high reliability, that is, high productivity, that is, high throughput per unit area and unit time, while eliminating the possibility of damaging the carrier or the coating material.

Various manufacturing procedures for various thin-layer systems of this kind, which are of great technological importance at present, are known, but do not completely fulfill these needs.

Therefore, the object of the present invention is almost universally applicable, can be easily applied to various specific membrane structures, and is potentially high in productivity, simplicity, and high reliability. , A better method of this kind, characterized in that it largely eliminates damage to the coating and / or the carrier.

This object is achieved by a method having the features given in claim 1. A device effective for carrying out this method is disclosed in claim 17.

The invention is based on the fact that in the near-infrared (NIR) region, that is to say the electromagnetic radiation in the wavelength region of 0.8 to 1.5 mm, is applied in each case by irradiating the product conveyed at a constant speed with the original radiation. It embodies the basic concept that the coating material is converted into a functional layer of laminated structure and at the same time adhered to the carrier. The effect achieved is different for each layer system, but the effect obtained is in particular the drying / and cross-linking of the original coating material, often with melting and consequent fusing to the carrier.

The radiation used in the present invention can be generated in a simple and economical way by driving a high power halogen lamp at high temperature.

Preferably, in a laminated structure, both the original coating material and the carrier are
It has a thickness between 5 mm and 500 mm, especially between 20 mm and 200 mm.

Materials used as carriers for important applications include, among others, PE, PP, or P.
Various plastic membranes, such as VC membranes, or metal foils of aluminum or copper, or their alloys in particular, or fine metal fabrics. The original coating material is
For example, in liquid or paste form, or powder, it is applied to the carrier by any suitable coating technique known per se, preferably by spin, roll, spray, sprinkle, blow.

The spectral composition of the infrared radiation used in the process is tailored to the absorptive properties of the original coating material, but preferably the material is used to prevent over-resistant thermal stress on each region of the carrier or coating. Heat uniformly over approximately the entire thickness. This adjustment can be performed by the drive voltage. Furthermore, you may insert a filter. The intensity of the incident light can be adjusted, for example, by changing the distance between the radiation source and the surface of the layer structure. The radiation can be applied directly, via a carrier, or from both sides.

By allowing the gas flow to pass over the surface of the applied original coating material and / or the back surface of the carrier (often hit by sufficient air flow), on the one hand, a uniform temperature distribution is achieved, The surface temperature can be lowered accordingly, and on the other hand, the volatile components of the original coating material can be quickly removed. As a result, the reliability and efficiency of the method can be further improved. The gas stream (air stream) is preferably cold and dry and is supplied by high pressure or propulsion.

The method is further refined to provide means for making motion adjustments based on feedback of the detector signal.

The proposed method is for producing a thin film transistor structure such as a liquid crystal display structure, a separation film for an electrochemical element such as a lithium ion battery, a thin film structure for a plasma display, or a film structure for a fuel cell. Suitable for manufacturing things.

A suitable apparatus for carrying out this method comprises the following arrangements: a delivery suitable for handling quasi-infinite carriers, consisting for example of a supply roll of carrier material and a forward supply mechanism with rollers. A forward feeding device; a delivery device for delivering the original coating material and applying it to the surface of the carrier so as to form a layer; a layer forming device; eg one or more halogen lamps containing broad spectral components in the NIR; And a NIR radiation device consisting of a power supply.

In a preferred embodiment of this device, it further comprises a gas flow generating device for generating and flowing the above-mentioned gas flow, and / or a device for adjusting or adjusting the intensity of incident light, the latter being preferred Have means for varying the distance between the radiation source and the layer structure.

The practice of the present invention is not limited to a particular application and the aspects described above, but can be practiced from a further aspect in many other applications, and it is within the ability of one of ordinary skill in the art to seek out them. It exists in.

[Procedure amendment]

[Submission date] February 28, 2003 (2003.2.28)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Contents of correction]

[Title of Invention] Method and apparatus for producing thin layer structure (Reason for correction) Since the "Title of Invention" in the domestic document was left blank,
We have revised the procedure amendment dated 1st of each month. However, due to the fact that this procedure amendment was submitted before the national processing standard time, we received a notice of reasons for rejection on February 3, 2003. In addition, we have pointed out that only the mistranslation correction is allowed because the "invention title" in domestic documents is considered to be a part of the translated text of the international application. I will submit. Thank you for your understanding.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G02F 1/1368 G02F 1/1368 (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, G M, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW), EA (AM, AZ, BY, KG, KZ) , MD, RU, TJ, TM), AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, R, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP , KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW F terms (reference) 2H092 JA24 JA28 KA07 KA09 KA10 MA09 4D075 AA01 AC19 AC21 AC64 BB26Z BB37Z BB94Z CA47 DA04 DA06 DB06 DB07 DB20 DB36 DB38 DC24 EA02 EA05 4F042 AA02 AA06 AA22 AB00 AB03 BA19 BA22 DB18

Claims (21)

[Claims] 1. From a carrier which is flexible, for example having a quasi-infinite band shape,
A method for producing a thin laminated structure by applying at least one layer of functional coating fixed to a carrier, in particular, having a thickness similar to the thickness of the carrier, and applying the original coating material to the carrier over a wide area. Forming an initial layer structure by applying the original coating material to form the functional coating from the original coating material, and at the same time, to perform adhesion including dry and / or thermal cross-linking to the carrier. Irradiating the carrier on which the carrier is mounted with electromagnetic radiation containing an active ingredient in the near infrared region. 2. A method according to claim 1, characterized in that the radiation from a halogen lamp driven at a high driving temperature is used. 3. The original coating material having an intermediate thickness of 5 mm to 500 mm, in particular 20 mm to 200 mm, is applied to a carrier having an intermediate thickness of 5 mm to 500 mm, in particular 20 mm to 200 mm. The method according to claim 1 or 2. 4. As the carrier, for example, polyethylene, polypropylene,
Alternatively, the method according to any one of the preceding claims, characterized in that a plastic film such as a PVC film is used. 5. A thin metal foil such as aluminum, copper, or an alloy containing aluminum or copper, or a fine woven fabric of a metal material is used as the carrier, for example. Method. 6. A method according to any of the preceding claims, characterized in that the original coating material is in liquid or paste form and is applied to the carrier, for example by spin, roll or spray. 7. The method according to claim 1, wherein the original coating material is in a powder form and is applied to the carrier by, for example, a sprinkle or a blow. 8. The spectral composition of the radiation is such that the original coating material is heated uniformly over substantially the entire layer thickness, depending on the absorption characteristics of the original coating material and, in some cases, the absorption characteristics of the carrier. Method according to any of the preceding claims, characterized in that it is adjusted. 9. The method of claim 8, wherein the spectral composition is adjusted using at least one filter. 10. Method according to any of the preceding claims, characterized in that the distance between the radiation source and the original coating material is varied in order to adjust the intensity of the incident radiation. 11. A gas flow, for example an air flow, is made to flow on the front surface of the original coating agent and / or the back surface of the carrier for cooling and / or removal of volatile components of the original coating agent. A method according to any of the preceding claims to 12. Method according to claim 11, characterized in that the cold and dry gas is delivered with high motive force. 13. A method according to any of the preceding claims, characterized in that the carrier is functionally coated to produce thin layer transistor structures, eg for liquid crystal display structures. 14. The method according to claim 1, wherein the carrier is functionally coated to form a separation membrane for an electrochemical device such as a lithium-ion capacitor. 15. The method according to claim 1, wherein the carrier is functionally coated to form a thin layer structure for plasma display construction. 16. The method according to claim 1, wherein the carrier is functionally coated to produce a membrane structure for a fuel cell. 17. A thin laminated structure is obtained by applying at least one functional coating fixed to a carrier, in particular, having a thickness similar to the thickness of the carrier, from a flexible carrier having a quasi-infinite band shape. A device for producing, wherein a step of forming an initial layer structure by applying an original coating material to the carrier over a wide area, and simultaneously forming the functional coating from the original coating material and adhering to the carrier, Irradiating the carrier on which the original coating material is placed with electromagnetic radiation having an active ingredient in the near-infrared region to perform drying and / or thermal cross-linking. A device, in particular a continuous delivery of the original coating, and A delivery / layer forming device for applying it to a carrier, and containing an active ingredient in the near infrared region toward the carrier attached to the subsequent stage of the delivery / layer forming device and coated with the original coating material. An irradiation device that generates radiation. 18. The apparatus according to claim 17, wherein the irradiation device is a halogen lamp, in particular a halogen lamp driven at a high driving temperature. 19. A gas flow directed substantially parallel to the surface of the layered structure or the surface of the initial layer structure and flowing through the configuration in a region where the operation of the irradiation device is excited, in particular cold, dry, high propulsion. 19. Apparatus according to claim 17 or 18, characterized in that it comprises a gas flow generating device for generating a forceful gas flow. 20. A method as claimed in claim 1, characterized in that it comprises means for adjusting the intensity of the incident radiation, for example positioning means for fine adjustment of the position of at least one radiation source of the irradiation device. The device according to any of the above. 21. The apparatus according to claim 17, further comprising an adjusting device for adjusting the intensity of radiation emitted from the irradiation device.