影響食品包裝袋平整度的因素有哪些

Writer： admin Time：2023-11-23 15:06 Browse：℃

　　Flatness is one of the indicators to measure the appearance quality of food packaging bags. In addition to material factors, the flatness of food packaging bags is also related to factors such as heat sealing temperature, heat sealing pressure, heat sealing time and cooling effect.

　　平整度是衡量食品包裝袋外觀質(zhì)量的指標(biāo)之一。食品包裝袋的平整度除材料因素外，還與熱封溫度、熱封壓力、熱封時(shí)間和冷卻效果等因素有關(guān)。

　　If the heat sealing temperature is too high, the heat sealing pressure is too high, or the heat sealing time is too long, the composite film will shrink and deform. Insufficient cooling will result in insufficient setting after heat sealing, internal stress cannot be eliminated, and the bag will be wrinkled. Therefore, the process parameters should be adjusted and the cooling water circulation system should work normally.

　　如果熱封溫度過(guò)高，熱封壓力過(guò)高，或熱封時(shí)間過(guò)長(zhǎng)，復(fù)合膜會(huì)收縮變形。冷卻不足會(huì)導(dǎo)致熱封后凝固不充分，內(nèi)應(yīng)力無(wú)法消除，袋子會(huì)起皺。因此，應(yīng)調(diào)整工藝參數(shù)，使冷卻水循環(huán)系統(tǒng)正常工作。