Why does the mango protection bag need to use black double gloss paper as the inner layer?

The black inner layer is a major feature of the double black inner double gloss outer composite paper double mango bag. This choice is not accidental, but based on in-depth research on mango growth characteristics and accurate grasp of market demand.

Black has extremely strong light absorption, which is one of the important reasons for choosing a black inner layer. During the growth of mangoes, excessive light may burn the peel, causing spots or uneven color on the peel, seriously affecting the appearance quality of mangoes. The black inner layer can effectively absorb and scatter light, reduce direct light exposure to the mango skin, and provide a relatively soft and uniform lighting environment for mangoes. In this way, mangoes can grow healthily without being disturbed by strong light, keeping the peel intact and beautiful.

The black inner layer can also block the penetration of ultraviolet rays. Ultraviolet rays are one of the important factors leading to fruit aging. Long-term exposure to ultraviolet rays will accelerate the aging process of mangoes, making the peel rough and dull. The black inner layer has good UV blocking ability, which can effectively reduce the damage of UV to mangoes, slow down the aging of mangoes, and keep the fruit fresh and shiny.

The mango protection bag needs a black inner layer because it can provide a relatively stable microenvironment for mangoes. This microenvironment is conducive to the growth and development of mangoes, so that mangoes can fully absorb nutrients and thrive during the bagging period. The black inner layer can reduce the interference of the external environment on mangoes, such as temperature fluctuations and humidity changes, and create a more suitable growth condition for mangoes. During the critical period of mango growth, a stable microenvironment is crucial to the quality and yield of the fruit.

The black inner layer also has a certain degree of concealment. During the growth of mangoes, some pests may be attracted by the color or smell of the fruit, causing damage to the mangoes. The black inner layer can cover the color and smell of mangoes, reduce the recognition of mangoes by pests, and thus reduce the risk of pest damage. This is of great significance for reducing the use of pesticides and improving the organic quality of mangoes.

The outer layer of composite paper can maintain the natural color and gloss of mangoes. As mangoes grow, their color gradually changes, and the protective effect of the outer layer of the composite paper allows the mangoes to maintain their natural color, making them more attractive when ripe. At the same time, the improved glossiness also increases the commodity value of mangoes, making them more competitive in the market.
The outer layer of the composite paper also has good air permeability. This air permeability ensures that the mangoes can breathe normally during the bagging period, avoiding physiological disorders caused by lack of oxygen. At the same time, the air permeability can also help regulate the temperature and humidity in the bag, providing a more suitable growth environment for mangoes.