Net-like metal fine particle multilayer film and method for producing same
A technology of metal particles and manufacturing methods, applied in chemical instruments and methods, coatings, layered products, etc., can solve problems such as adverse effects on the human body, and achieve high transparency, high productivity, and no Moiré effect
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Embodiment 1
[0131] A primer was applied to one side of a biaxially stretched polyethylene terephthalate film (Lumira (registered trademark) U46 manufactured by Toray Co., Ltd., surface wetting tension: 47 mN / m), and hydrophilic treatment was performed . The surface wetting tension of the membrane after hydrophilic treatment was 73mN / m. Next, the air on the substrate was exhausted using an exhaust fan, thereby allowing air at a temperature of 25° C. and a humidity of 45% RH to flow in a direction of 0 degrees parallel to the substrate surface. Furthermore, the wind speed of this airflow was adjusted to 4 m / sec. At this time, the temperature on the film was 25° C., and the humidity was 45% RH. The metal microparticle dispersion 1 was coated on the substrate using the die coating method under this air flow so that the wet thickness on the hydrophilic treatment layer of the biaxially stretched polyethylene terephthalate film was 30 μm. At this time, the coating was performed so that the di...
Embodiment 2
[0135] A networked metal fine particle laminated film was obtained in the same manner as in Example 1, except that the length of the film was 2 m.
[0136] The obtained network-like metal microparticle laminated film had an irregular network shape. The average value of the total light transmittance in the range of length 2m was 80%. The maximum value of the total light transmittance was 81%, the minimum value was 79%, and the unevenness of the total light transmittance was 1%. The unevenness of the total light transmittance is better than that of Example 1. In addition, the average value of the surface resistivity was 30Ω / sq. The maximum value of the surface resistivity was 33Ω / sq., the minimum value was 27Ω / sq., and the unevenness of the surface resistivity was 10%. The unevenness of the surface resistivity was better than that of Example 1. The moiré resistance was "A".
Embodiment 3
[0138] A networked metal fine particle laminated film was obtained in the same manner as in Example 1 except that the length of the film was 2000 m.
[0139] The obtained network-like metal microparticle laminated film had an irregular network shape. The average value of the total light transmittance in the range of length 2000m was 80%. The maximum value of the total light transmittance was 81%, the minimum value was 78%, and the unevenness of the total light transmittance was 2%. Even in the 2000 m network-shaped metal microparticle laminate film longer than that of Example 1, the unevenness of the total light transmittance was as good as that of Example 1. The average value of the surface resistivity was 30Ω / sq. The maximum value of the surface resistivity was 36Ω / sq., the minimum value was 27Ω / sq., and the unevenness of the surface resistivity was 20%. The unevenness of the surface resistivity was as good as in Example 1. The moiré resistance was "A".
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Abstract
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