Insufficient embossing for hologram foils
Causes Unsuitable material hardness and elasticity Insufficient temperature [...]
Causes Unsuitable material hardness and elasticity Insufficient temperature [...]
Causes Winding too tight Winding too loose Unsuitable [...]
Causes Direct food contact Indirect food contact Pharmaceutical [...]
Causes No sufficient heat conduction due to roll coating [...]
Causes High voltage due to charge separation between [...]