The manufacturer specializes in printing customized flower fertilizer nutrient soil composite plastic packaging bags

Flower fertilizer packaging bag

Customized production of various flower fertilizer packaging bags: flower fertilizer packaging bags, nutrient soil packaging bags, culture soil packaging bags, nutrient fertilizer packaging bags, nutrient packaging bags, lvyebao packaging bags, pine needle soil packaging bags, compound fertilizer packaging bags, compound flower fertilizer packaging bags, compound flower soil packaging bags.

Chemical fertilizer packaging bags are generally plastic woven bags with inner membrane or three-layer coextrusion PE film bags. Three-layer coextrusion PE film bags are mostly used in foreign countries and plastic woven bags with inner membrane are mostly used in China. Due to the poor sealing and moisture resistance of plastic woven bags, and they do not meet the requirements of automatic filling in large industrial production, they will gradually be replaced by three-layer coextrusion membrane bags. At present, China has begun to use three-layer coextrusion PE film bags. However, due to the great differences between China and foreign countries in loading and unloading, transportation conditions and storage habits, as well as the many times of transportation turnover of fertilizer products from production enterprises to end users, three-layer coextrusion PE film bags are made of silane crosslinked polyethylene, and their tensile strength and creep resistance are limited. During transportation, three-layer coextrusion PE film bags will bump into other objects, Due to the limited tensile strength and creep resistance of three-layer coextrusion PE, bags are often broken. In addition, the process characteristics of China's chemical fertilizer enterprises are that the temperature of finished chemical fertilizer (such as urea) when bagging is about 80 ℃, which exceeds the normal use temperature of three-layer coextrusion PE film bags. When filling chemical fertilizer, the high temperature makes the packaging bags stretch and deform during stacking, the strength decreases, and the bag breaking rate is higher. In addition, due to the inevitable dust in the finished chemical fertilizer (such as urea dust in urea particles), these dust will pollute the hot sealing surface of the three-layer coextrusion PE film bag sealing. When the packaging bag is hot sealed, the bonding strength of the hot sealing surface becomes poor, or the bonding is not tight, which is also an important reason for bag breakage. Slightly broken bags, such as untight sealing and heat sealing, will lead to moisture absorption and caking of fertilizer, loss of fertilizer efficiency and shortening of shelf life. Seriously broken bags will make the fertilizer loose and unable to be stored and transported

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