A kind of preparation method for food vacuum preservation compression bag
A technology of vacuum preservation and compression bag, applied in the field of compression bag, can solve the problems of handling labor, brittleness, deterioration of packaged food, etc., and achieve the effect of improving processing quality
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Embodiment 1
[0043] A method for preparing a food vacuum fresh-keeping compression bag, the food vacuum fresh-keeping compression bag is composed of an aluminum foil bottom layer and a polyethylene coating layer;
[0044] The aluminum foil bottom layer is composed of 45% aluminum powder, 25% polyethylene resin, 15% nanometer powder, 10% glyceryl monostearate, 3% paraffin oil and 2% bamboo charcoal particles by weight percentage; Nano-powder is made by mixing nano-silica powder, nano-titanium dioxide powder and nano-zinc oxide powder according to the weight percentage of 3:1:1;
[0045] The polyethylene coating consists of 40% polyethylene resin, 15% phenolic resin, 15% polyurethane resin, 15% glycerol, 10% calcium stearate and 5% 2-hydroxy - Composition of 4-methoxybenzophenone;
[0046] And the preparation method of the food vacuum preservation compression bag comprises the following steps:
[0047] 1) Preparation of the bottom layer of aluminum foil: first introduce aluminum powder int...
Embodiment 2
[0052] A kind of preparation method that is used for food vacuum fresh-keeping compressed bag, and the difference in embodiment 1 is, without nano-powder and composition thereof; It consists of polyethylene resin, 15% glyceryl monostearate, 3% paraffin oil and 2% bamboo charcoal particles, and step 1) does not involve the participation of nanometer powder in the preparation process of the aluminum foil bottom layer.
Embodiment 3
[0054] A kind of preparation method that is used for food vacuum fresh-keeping compressed bag, and the difference in embodiment 1 is that there is no 2-hydroxyl-4-methoxybenzophenone; that is, the polyethylene coating is divided by weight percentage It consists of 40% polyethylene resin, 15% phenolic resin, 15% polyurethane resin, 15% glycerol and 15% calcium stearate, and there is no Involvement of 2-hydroxy-4-methoxybenzophenone.
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