Aluminium Foil For Packing Food Grade
Aluminium foil for packing food grade 8011, 3003, 1060, 1235, 8079, thickness 0.011-0.025em state 0, H18 aluminum foil. And should meet the requirements of GB/T3198.
The appearance should meet the following requirements:
a) It should be clean and flat; no animal carcasses, blood stains, hair, handprints are allowed; no corrosion marks, private bumps, no wrinkles and folds, no obvious yellow oil spots formed after the burning of lubricating oil:
b) No pinholes with a diameter greater than 0.3mm are not allowed:
c) Slightly dispersed emulsion marks, waves, transverse waves and imprints are allowed on the surface:
d) The end face of the large aluminum foil coil should be neat and free of oil, impurities and bruises:
e) Rewinding tension is the same: aluminum foil rolls are allowed to have stepped strung layers, but the strung part of the layers should not be greater than 2mm;
f) The end surface is allowed to have arrow-shaped patterns formed by loosening inside and tightening outside, but it shall not affect the use:
g) When a large aluminum foil roll is placed vertically, the core must not come out freely:
Aluminum foil packaging has excellent properties such as poor air permeability (especially for oxygen and water vapor) and light-shielding, as well as shape retention and rigidity. Therefore, packaging food with aluminum foil can prevent air from entering the food packaging bag.
Aluminum has the characteristics of light weight and luster, strong reversal ability, good barrier properties, impermeable body and water vapor, strong temperature adaptability, stable shape at high or low temperature, strong shading and excellent fragrance retention, so aluminum foil bags It has the functions of good moisture resistance, barrier, light protection, permeability resistance and beautiful appearance. The water vapor transmission rate reaches (m24h)>. It also has the function of heat sealing. It can be vacuum packed. The composite aluminum foil bag is opaque in appearance. Silver-white, with anti-gloss, can be stored in an environment with temperature ≤ 38°C and humidity ≤ 90%. .
For details of Soft Aluminum Foil For Pharmaceutical products, please see the previous article
