Powdery food sack why heat seal leak?
Today there is a friend in the BBS to see such a problem is put forward.
Heat seal bags leak basically has the following several reasons: 1, heat sealing, fold, fold to not heat sealing, 2 a foreign body, hot pincer-like device clamp, influence heat sealing effect, 3, heat sealing parameters such as temperature, pressure, time has not adjust good, heat sealing strength difference or false phenomenon, 4, heat sealing knife gap, unbalanced, cause heat seal in some places not to heat sealing.
For powdery food, the most likely to cause the reason is that hot hot sealing leak sealing clamp with powder products.
Why is that?
That is powdery food because the particles are small, and the electrostatic bag friction, the powder can easily adsorbed on the packaging.
So usually powdery
food packaging material selection, heat sealing layer can choose has the anti-static film, can prevent silt adsorption, heat sealing.
Besides choosing anti static electric heat seal, the following several ways and treatment methods of heat sealing leakage packaging: 1, the heat sealing layer, 2, switch to wavy heat sealing knife, 3, increase the heat sealing width.
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have three basic components.
