运销两用鲜枣气调包装袋的设计

Design of Air-conditioned Packaging Bag Suitable for Transportation and Sale of Fresh Jujube

目的设计一种适合鲜枣运输和销售2种功能的气调包装袋。方法通过实验研究牛妈妈枣采后生理性能的变化特点,然后结合气调包装的理论数学模型,选用合适的包装材料,计算出包装一定质量的果品所需包装袋的用量;最后结合绿色消费、人性化设计绘制气调袋造型图。结果选择厚度为0.03 mm,透气系数比β为2.75的低密度聚乙烯(LDPE)保鲜薄膜0.25 m^2作为制作气调袋的材料,气调袋的结构满足多次使用、果核回收、直立展示、方便运输等功能。结论该设计延长了牛妈妈枣的食用价值和贮藏期。

The work aims to design an air-conditioned packaging bag suitable for transportation and sale of fresh jujube. The changing characteristics of post-harvest physiology of niumama jujube were studied by experiment. Then, combined with theoretical mathematical model of air-conditioned packaging, and by selecting appropriate packaging materials, the number of packaging bags required by a certain amount of fruit was calculated. Finally, in combination with green consumption and humanized design, the profile diagram of air-conditioned packaging bag was drawn. The 0.25 m^2 low density polyethylene （LDPE） fresh-keeping film （thickness of 0.03 mm and permeability coefficient ratio β of 2.75） was selected as the material to manufacture air-conditioned bags. The structure of air-conditioned bag conformed to a variety of functions, such as usage for multiple times, core recovery, vertical display and convenient transportation. The proposed design has improved the edible value and prolonged the storage period of niumama jujube.