Plastic coated paper base with antistatic bottom layers on two sides
An anti-static, bottom-layer technology, applied in optics, instruments, photosensitive materials, etc., can solve the problems of increased surface resistance of paper base, static electricity, product scrapping, etc., and achieve the effect of avoiding scrapping
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Embodiment 1
[0023] Anti-static base formula composition:
[0024] 100g deionized water,
[0025] Photographic gelatin 1g,
[0026] Potassium nitrate 0.5g,
[0027] Aluminum oxide (2.5μm) 0.1g,
[0028] According to the formula requirements, add deionized water and photographic gelatin into the container, after the gelatin is fully soaked, heat to dissolve it completely, then add aluminum oxide and potassium nitrate in turn under stirring, and stir evenly to obtain the antistatic bottom coating liquid, stand-by.
[0029] One side of the photographic base paper is subjected to high-voltage corona treatment, and then coated with a polymer layer, and after cold roll pressing and cooling, the other side of the photographic base paper is subjected to high-voltage corona treatment, coated with a polymer layer, and cold roll pressing Cooling; performing high-voltage corona treatment on the above-mentioned polymer layer, adopting the relay coating method, coating the above-mentioned antistatic...
Embodiment 2
[0031] Anti-static base formula composition:
[0032] 100g deionized water,
[0033] Photographic gelatin 0.5g,
[0034] Lithium chloride 0.6g,
[0035] Silica (4.3μm) 0.5g,
[0036] According to the formula requirements, add deionized water and photographic gelatin into the container, after the gelatin is fully soaked, heat to dissolve it completely, then add aluminum oxide and potassium nitrate in turn under stirring, and stir evenly to obtain the antistatic bottom coating liquid, stand-by.
[0037] One side of the photographic base paper is subjected to high-voltage corona treatment, and then coated with a polymer layer, and after cold roll pressing and cooling, the other side of the photographic base paper is subjected to high-voltage corona treatment, coated with a polymer layer, and cold roll pressing Cooling; performing high-voltage corona treatment on the above-mentioned polymer layer, adopting the relay coating method, coating the above-mentioned antistatic bottom...
Embodiment 3
[0039] Anti-static base formula composition:
[0040] 100g deionized water,
[0041] Photographic gelatin 1.5g,
[0042] Sodium polystyrene sulfonate 0.9g,
[0043] Titanium dioxide (0.01μm) 0.1g,
[0044] According to the formula requirements, add deionized water and photographic gelatin into the container, after the gelatin is fully soaked, heat to dissolve it completely, then add aluminum oxide and potassium nitrate in turn under stirring, and stir evenly to obtain the antistatic bottom coating liquid, stand-by.
[0045] One side of the photographic base paper is subjected to high-voltage corona treatment, and then coated with a polymer layer, and after cold roll pressing and cooling, the other side of the photographic base paper is subjected to high-voltage corona treatment, coated with a polymer layer, and cold roll pressing Cooling; performing high-voltage corona treatment on the above-mentioned polymer layer, adopting the relay coating method, coating the above-ment...
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