Vacuum sealing, vacuum sealing indoor vacuum and temperature of the food is the main factor to control tank vacuum. Vacuum sealing indoor vacuum degree and the higher the temperature of the food, canned after the closing of the vacuum will be high; Tip clearance in vacuum sealing, canned water vapor partial pressure (P) does not allow more than the atmospheric pressure (B) minus the vacuum degree of vacuum indoor (W), namely: P B - W or less. Or tank food will be instantaneous boiling, thus appear food spillover phenomenon. Vacuum sealing, sealing the higher vacuum degree, food temperature should be lower; If the sealed chamber vacuum degree is reduced, to ensure that the vacuum degree after closing requires to raise some food temperature.

Dongguan SUNO packaging co., LTD mainly produces drink easy pull cover, aluminum cover, tinplate easy pull cover products, such as easy pull cover product with safety and health, non-toxic tasteless, high quality materials, at the same time use the MINSTER punch high-speed production lines, Japan AADA punch high-speed production lines and form a complete set of advanced perfect easy pull cover inspection testing equipment, makes the product modeling beautiful essence; Design precision, sealed performance is good, all have diarrhoea, not intake, to ensure that product quality is durable.