Food packaging paper and preparation method thereof
A technology of food wrapping paper and base paper layer, applied in wrapping paper, wrapping paper, packaging, etc., can solve the problem that oil resistance cannot meet the requirements of shelf life, and achieve the effect of extending shelf life, excellent oil resistance, and ensuring freshness
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Embodiment 1
[0016] Embodiment 1, a kind of food wrapping paper disclosed by the embodiment of the present invention comprises a base paper layer, an oil-repellent layer, a fresh-keeping agent layer and a starch film layer which are sequentially stacked, and the oil-repellent layer is composed of chitosan, acetic acid, sodium alginate and Composed of deionized water, the preservative layer includes a film-forming water-soluble carrier and a preservative that is formed by mixing propolis, sucrose fatty acid ester and ethanol in the film-forming water-soluble carrier, and the oil-proof layer is composed of a weight and number ratio of 2 parts of chitosan, 2 parts of acetic acid, 11 parts of sodium alginate and 85 parts of deionized water are made; It is made by mixing 96% ethanol.
[0017] A preparation method for food packaging paper, comprising the steps of:
[0018] (1) Mix 2 parts of chitosan, 2 parts of acetic acid, 11 parts of sodium alginate and 85 parts of deionized water to form a ...
Embodiment 2
[0021] Embodiment 2, a kind of food wrapping paper disclosed by the embodiment of the present invention, comprises base paper layer, oil-proof layer, preservative layer and starch film layer that are stacked successively, and described oil-proof layer is made of chitosan, acetic acid, sodium alginate and Composed of deionized water, the preservative layer includes a film-forming water-soluble carrier and a preservative that is formed by mixing propolis, sucrose fatty acid ester and ethanol in the film-forming water-soluble carrier, and the oil-proof layer is composed of a weight and number ratio of 5 parts of chitosan, 5 parts of acetic acid, 8 parts of sodium alginate and 82 parts of deionized water are made; Part concentration is that the ethanol of 96% is mixed and made, and its preparation method is the same as embodiment.
Embodiment 3
[0022] Embodiment 3, a kind of food wrapping paper disclosed by the embodiment of the present invention, comprises base paper layer, oil-repellent layer, preservative layer and starch film layer that are stacked successively, and described oil-repellent layer is made of chitosan, acetic acid, sodium alginate and Composed of deionized water, the preservative layer includes a film-forming water-soluble carrier and a preservative that is formed by mixing propolis, sucrose fatty acid ester and ethanol in the film-forming water-soluble carrier, and the oil-proof layer is composed of a weight and number ratio of 4 parts of chitosan, 4 parts of acetic acid, 10 parts of sodium alginate and 82 parts of deionized water are made; Part concentration is that the ethanol of 96% is mixed and made, and its preparation method is the same as embodiment.
[0023] In the present invention, the drying temperature of the oven in step (1) is preferably 80-100°C, and the oil-proof layer is composed o...
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