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Method for producing coated film

A manufacturing method and coating technology, which is applied in the field of film manufacturing, can solve problems such as interlayer mixing, and achieve the effects of preventing interlayer mixing, preventing interference fringes, and preventing whitening

Active Publication Date: 2015-08-05
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can solve the problem of interference fringes at the interface between the support and the coating film, and the problem of interlayer mixing when coating multiple coating liquids on the support at the same time.

Method used

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  • Method for producing coated film
  • Method for producing coated film

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ］

[0048] figure 1 The overall structure of the production apparatus 1 to which the method for producing a film with a coating film of the present invention is applied when a coating film 10 (such as a hard coat layer) is applied in a single layer on a flexible belt-shaped support body 20 (such as a resin film) picture.

[0049] However, in the embodiment of the present invention, an example in which an active ray-curable resin having a molecular weight of 2500 or more is used as the active ray-curable component in addition to the active ray-curable monomer will be described.

[0050] (Coating liquid preparation process)

[0051] exist figure 1 In the coating liquid preparation apparatus 12 shown, the coating liquid containing the active-ray-curable resin with a molecular weight of 2500 or more in a solvent other than an active-ray-curable monomer is prepared as an active-ray-curable component. At this time, the composition of the coating solution is prepared so that the coati...

no. 2 Embodiment approach ］

[0106] Figure 5 This is a case where the method for producing a film with a coating film of the present invention is applied to a case where two coating liquids are simultaneously coated in multiple layers on a tape-shaped support to form a two-layer coating film of upper and lower layers. right with figure 1 The same components or devices are marked with the same symbols for description. In addition, an example in which the lower layer of the two layers contains an active ray-curable monomer and an active ray-curable resin with a molecular weight of 2,500 or more as curing components will be described, but it may be contained in the upper layer, or may be contained in both the upper layer and the lower layer. middle.

[0107] (Coating liquid preparation process)

[0108] Such as Figure 5 As shown, in the first coating liquid preparation device 12A, a coating liquid for an under layer containing an active radiation curable resin having a molecular weight of 2500 or more ...

Embodiment 2

[0161] ·Example 2: curing rate 50%, average evaporation rate 2.45g / m 2 Seconds, satisfying the present invention.

[0162] ·Example 3: curing rate 50%, average evaporation rate 3.00g / m 2 Seconds, satisfying the present invention.

[0163] ·Example 4: curing rate 10%, average evaporation rate 2.45g / m 2 Seconds, satisfying the present invention.

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Abstract

PROBLEM TO BE SOLVED: To prevent the whitening of a coating film even if the coating film is dried after the coating film containing an active ray curable component is irradiated with active rays.SOLUTION: At least one coating solution containing an active ray curable component is prepared to be applied to a support 20 to form at least one coating film 10 and this coating film 10 is irradiated with active rays to be dried. In the irradiation process, the coating film 10 is irradiated with active rays in a wet state to raise the curing ratio of the curable component in the coating film 10 to 10-80% and, in the drying process, until the solid concentration of the coating film 10 reaches 80% of the lapse rate drying start solid concentration from the irradiation completion time of the active rays, the average evaporation speed of the solvent evaporated from the coating film is adjusted to 3.00 g / msecond or below.

Description

technical field [0001] The present invention relates to a method for producing a thin film with a coating film, and more particularly to a method comprising a step of irradiating the coating film with active rays after coating a coating liquid containing an active radiation-curable component on a support, and drying the coating film. The manufacturing method of the coated film of the process. Background technique [0002] The technology of coating a coating solution on a support (including the case with an undercoat layer) to produce a film with a coating film is widely used in the field of production of functional films such as optical films. [0003] However, due to the problem of interference fringes (interference fringe) at the interface between a support such as a resin film and a coating film, and the problem of interlayer mixing when a plurality of coating liquids are simultaneously coated in multiple layers on a support, etc., there is a problem that cannot be fully ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/24B05D3/06G02B1/10G02B1/12
Inventor 国安谕司斋川保
Owner FUJIFILM CORP
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