Discussion on Physiological Characteristics and Design of Transport Package of Juicy Peach (Continued)

2.2.2 Cargo marks outside the carton
The outer packaging box should have the product's logo and shipping logo, which can be expressed in text and graphics. The commodity mark indicates the commodity name, quantity, grade, specification, weight, place of manufacture, manufacturer and packaging period, etc. The transportation label mainly indicates the nature of the contents, the packing method, and the requirements for the environmental conditions. These information are in the circulation area. It is very important and must be regulated. Therefore, the packaging and shipping signs must strictly comply with the national standards.
2.3 The inner packaging of the peach shall be based on the physiological characteristics of the fruit. The respiration intensity of hand peaches is high, and the membrane material used has enough surface tension to be evenly moistened by the water to form a very thin water film, and it is better to prevent condensation on the PE film. The practice of storage and transportation of peaches showed that the fruit was seriously damaged when the amount of packaging reached lkg/bag, and the effect was better when 0.5 kg/bag. In order to further reduce the chance of squeeze, it is best to use a single fruit packaging, tie the bag mouth.
The meaning of the inner packaging of the film lies in that a suitable spontaneous atmosphere is formed in the package to produce a respiratory inhibition effect; the spread of the disease is prevented; the film used is soft and has a buffer effect.
2.4 Packing Technology of Peach
2.4.1 Egg cartons arranged in the packing box are too tight and easily squeezed to cause injury; however, if they are loosened, they are subject to vibration during transportation and sink, causing the upper part to become vacant. The fruit and the box undergo a secondary movement and produce a greater vibration acceleration. According to research, sometimes the upper layer of fruit vibration acceleration is 2 to 3 times lower fruit [4]. Therefore, the packing of the peach should be layered, and the egg tray-shaped grid arrangement is most suitable. Because the concave shape of the egg tray not only enables the fruit to be positioned, but also keeps the higher side of the fruit's maturity upward. At the same time, the egg tray and the fruit shape can be well matched, so that the contact area between the two can be increased, and the stress concentration can be effectively reduced. The support of the egg tray will reduce the static load on the lower layer of the fruit, make the space in the box evenly distributed, and facilitate air circulation [7]. The egg tray itself also has the ability to absorb vibration energy and reduce the vibration speed and damage the fruit. effect.
Egg trays are made of high-quality, light-weight polymer materials that are hygienic, safe, resilient, stable in nature.
2.4.2 Precautions
First, packing should not be over-filled. Otherwise, the fruit in the box will be crushed due to the weight of the upper package. On the other hand, it will easily be damaged due to a direct impact shock during transport vibration. In order to protect the fruit, there must be a proper amount of packaging. In addition, it is better to put a paper liner on the bottom of the box and the top of the box to make the box have better performance of absorbing low frequency vibration. Secondly, a ventilation hole must be provided on the fruit box, but the setting of the ventilation hole will inevitably reduce the strength of the carton. According to the results of the research on the factors affecting the carton compressive strength, five to eight vent holes with diameters of 14 to 15 mm can be set at both ends of the box and try not to approach the edges. Third, the fruits constantly breathe and release moisture, and the strength of the carton drops after it absorbs water. Therefore, it is necessary for the wall of the carton to be waxed to prevent moisture from penetrating.

3 Conclusion

The progress of lifestyle and consumption concepts requires more and more high-quality fruits and vegetables, and the market requirements of different regions must be met by transportation. Due to the numerous factors that come from the fruit, packaging and changing transportation environment during transportation, there are complex Relationships, studies and clarification of these relationships are the basis for formulating the technical specifications for fruit and vegetable logistics, and deserve attention and in-depth research. When discussing the design of the transport package of peaches, it should not be overlooked that the transportation of peaches should still be based on the premise of low temperatures.

[references]

[1]Jiangsu, Wu Xiaoyan, Peng Cuiying. Preliminary report on the storage and preservation of juicy peaches[J]. Guangxi Horticulture, 2002, (5): 5-7.
[2]Sui Hua.The physiological functions of calcium and its importance in the physiology of fruits and vegetables[J].Journal of Zhejiang Agricultural Sciences,1995,7(6):499-501.
[3] Ping Youmei, Yu Bennong. Mechanical damage of fruits and vegetables and their response to shock and vibration loads [J]. Packaging Engineering, 1999, 20(4):10-12.
[4]Obata Bangan (Japan). Introduction to storage of fruits and vegetables[M]. Beijing: Agricultural Press, 1983.
[5] Tang Zhiqiang, Qu Hong. The important role of packaging in modern logistics technology [J]. Packaging Engineering, 2002, 23 (3): 7-78.
[6] Zhang Xin. Australia's fruit packaging technology [J]. Packaging and Food Machinery, 2003, 21 (1): 40.
[7] Zhang Shubin, Xiao Menglan. A brief discussion on buffer packaging materials [J]. Packaging Engineering, 2002, 23 (3) 111-112.
(Finish)