High-resistance high-speed auto-inflation food packaging film and production process thereof
A technology of food packaging film and automatic inflation, which is applied in packaging, wrapping paper, transportation and packaging, etc. It can solve the problems of poor oxygen barrier performance, low heat sealing strength, affecting taste and quality, etc., and achieves improved barrier performance and peeling high intensity effect
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Embodiment 1
[0033] The production process of the high-barrier high-speed automatic inflatable food packaging film comprises the following steps:
[0034] Step 1, prepare PE film: perform tape casting according to the following formula of corona layer, intermediate layer and heat seal layer, and perform high-voltage online corona treatment during the tape casting process to obtain PE film;
[0035] The corona layer includes linear low-density polyethylene and polycycloolefin with a mass ratio of 85:15, and the intermediate layer includes linear low-density polyethylene, low-density polyethylene, and high-density polyethylene with a mass ratio of 50:25:25. Polyethylene, the heat-sealing layer includes low-density polyethylene, olefin plastomer, linear low-density polyethylene, silicone and processing aids with a mass ratio of 50:25:25:1.5:0.2;
[0036] Step 2, aluminizing PE film: vacuum aluminizing the PE film so that the aluminized OD value of the corona layer is 2.6, thereby obtaining an...
Embodiment 2
[0041] The production process of the high-barrier high-speed automatic inflatable food packaging film comprises the following steps:
[0042] Step 1, prepare PE film: perform tape casting according to the following formula of corona layer, intermediate layer and heat seal layer, and perform high-voltage online corona treatment during the tape casting process to obtain PE film;
[0043] The corona layer includes linear low-density polyethylene and polycycloolefin with a mass ratio of 83:17, and the intermediate layer includes linear low-density polyethylene, low-density polyethylene, and high-density polyethylene with a mass ratio of 48:23:27. Polyethylene, the heat-sealing layer includes low-density polyethylene, olefin plastomer, linear low-density polyethylene, silicone and processing aids with a mass ratio of 48:23:27:1.7:0.3;
[0044] Step 2, aluminizing the PE film: vacuum aluminizing the PE film so that the OD value of the aluminized corona layer is 2.5, thereby obtainin...
Embodiment 3
[0049] The production process of the high-barrier high-speed automatic inflatable food packaging film comprises the following steps:
[0050] Step 1, prepare PE film: perform tape casting according to the following formula of corona layer, intermediate layer and heat seal layer, and perform high-voltage online corona treatment during the tape casting process to obtain PE film;
[0051] The corona layer includes linear low-density polyethylene and polycycloolefin with a mass ratio of 87:13, and the intermediate layer includes linear low-density polyethylene, low-density polyethylene, and high-density polyethylene with a mass ratio of 52:27:23. Polyethylene, the heat-sealing layer includes low-density polyethylene, olefin plastomer, linear low-density polyethylene, silicone and processing aids with a mass ratio of 52:27:23:1.3:0.1;
[0052] Step 2, aluminizing PE film: vacuum aluminizing the PE film so that the OD value of the aluminized corona layer is 2.7, thereby obtaining an...
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