JPH0558263U - Roll laminator - Google Patents

Abstract

(57) [Summary] [Purpose] Even under conditions of high temperature and high pressure such that the laminating temperature is 200 ° C and the laminating linear pressure exceeds 20 kg / cm, a laminated product with a plurality of base materials including a metal foil is wrinkled. A roll laminating apparatus that can be formed without causing [Structure] Laminating heating roll 1, feed roll 2, hot air blowing nozzle box 3 are installed in a hot air circulating furnace 7, and a work 5 or 5 is a copper foil coated with an adhesive.
Laminating is performed by making the temperature of the (base material) and the internal atmosphere substantially the same as the surface temperature of the laminating heating roll 1 to produce a laminated product 6.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a roll laminating device.

[0002]

[Prior Art]

 Conventionally, when carrying out heating lamination at a temperature higher than room temperature through the adhesive with metal foil, plastic film, or a plurality of base materials (hereinafter referred to as "workpieces") coated with an adhesive on them, a heating roll for lamination is used. In addition to heating to a specified temperature, the above work is heated with an infrared heater, preheating roll, etc. in front of the laminating heating roll to prevent the occurrence of hexagonal wrinkles on the work due to the temperature difference. I have to.

However, even by the above method, when the temperature of the laminating heating roll exceeds 200 ° C. and the laminating linear pressure exceeds 20 kg / cm, the work on the laminating heating roll or immediately after the laminating heating roll is Wrinkles occur on the product and it does not become a product. Therefore, in this case, it is impossible to use roll lamination, and in reality, heat lamination is used for discontinuous lamination.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned hot press method described in the prior art has a problem in that it is not convenient because a continuous rolled laminated product cannot be obtained, and the cost of the laminate is expensive, which is uneconomical.

An object of the present invention is to provide a roll laminating apparatus which does not have the problems of the above-mentioned conventional techniques.

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention provides a heating roll for laminating and a feed roll for laminating a plurality of base materials via an adhesive or the like. The roll laminating apparatus is characterized by being installed in a hot air circulating furnace in which the temperature of the atmosphere can be controlled to be substantially the same as the surface temperature of the laminating heating roll.

In the present invention, by minimizing the difference between the temperature of the base material and the internal atmosphere and the surface temperature of the heating roll for lamination, it is possible to reduce the difference between the temperature of the laminating heating roll generated on the base material and the turtle shell just after the lamination. Occurrence of an eight-shaped wrinkle is prevented, but the temperature difference is preferably 5 ° C. or less.

In addition to the above temperature difference, there is slack in the base material during roll laminating as a cause of wrinkling of the base material. This is easily caused by increasing the tension of the base material before and after the laminating heating roll. It is possible to prevent it and is not directly related to the present invention.

[0009]

【Example】

 FIG. 1 is a sectional view of a roll laminating apparatus according to an embodiment of the present invention. In the figure, 1 is a laminating heating roll, 2 is a feed roll, 3 is a hot air blowing nozzle box, 7 is a laminating heating roll 1, a feed roll 2 and a hot air blowing nozzle box 3, and a hot air exhaust port It is a hot air circulation furnace equipped with 4. Further, 5 is a work in which a rolled copper foil having a thickness of 35 μm is coated with a polyimide adhesive of 5 μm, and 6 is a laminated product composed of works 5 and 5.

In the case of laminating with the above apparatus, the surface temperature of the laminating heating roll 1 is 220 ° C., the laminating linear pressure is 20 kg / cm, and the hot air temperature from the hot air blowing nozzle box 3 is used to heat the work 5 for laminating. The temperature was set to 220 ° C when the roll 1 was reached. The works 5 and 5 were roll-laminated under the above conditions, and a laminated product 6 having no wrinkles was obtained.

FIG. 2 is a sectional view of a roll laminating apparatus which is a comparative example. In the figure, 9 is an infrared heater housed in an infrared heating furnace 8, and 10 and 13 are infrared heaters which are divided into five parts in the width direction and each of the divided parts can independently control the temperature. The laminating heating roll 1, the feed roll 2, the work 5, and the laminated product 6 are the same as those in the embodiment. Reference numeral 11 is a work winder, and 12 is a laminate product winder.

In the case of laminating with the above apparatus, the surface temperature of the laminating heating roll 1 is 220 ° C., the laminating linear pressure is 20 to 10 kg / cm, and the temperature of the divided portions of the infrared heaters 10 and 13 is various. Although the same changes were made and the same works 5 and 5 were laminated, a wrinkle-free laminate 6a could not be obtained.

In the above case, air convection due to heat is strong around the infrared heaters 10 and 13, and it is difficult to maintain the temperature of the works 5 and 5 uniformly. The difference was measured.

As the laminating heating roll 1 in the above embodiment, a chrome plated steel roll is usually used, but instead of this, rubber lining rolls or rubber lining rolls and chrome plated steel rolls are used. When combined with each other, a laminated product 6 free from wrinkles could be obtained.

[0015]

[Effect of the device]

 According to the present invention, when a metal foil, a plastic film, or the like is roll-laminated, a laminated product having no wrinkles is obtained even when the laminating heating roll has a high temperature exceeding 200 ° C and a high linear pressure exceeding 20 kg / cm. It is possible to continuously obtain the material in the form of a roll, which improves the workability and reduces the lamination cost.

[Brief description of drawings]

FIG. 1 is a sectional view of a roll laminating apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a roll laminating apparatus which is a comparative example.

[Explanation of symbols]

1 ... Heating roll for lamination 2 ... Feed roll 3 ... Hot air blowing nozzle box 4 ... Hot air exhaust port 5 ... Work piece 6 ... Laminated product 6a ... Laminated product 7 ... Hot air circulation furnace 8 ... Infrared heating furnace 9 ... Infrared heater 10 ... Infrared heater 11 ... Work unwinder 12 ... Laminated product winding machine 13 ... Infrared heater

Claims (1)

[Scope of utility model registration request] 1. A heating roll for laminating and a feed roll for laminating a plurality of base materials via an adhesive or the like, the temperature of the base material and the internal atmosphere is controlled to be substantially the same as the surface temperature of the heating roll for lamination during lamination. A roll laminating device which is installed in a possible hot air circulation furnace.