What are the categories of rice bags
Generally, plastic bags for non-contact food are made of PVC. PVC is cheap, easy to color, bright color and not easy to deform. The plastic bag is beautiful in style, easy to process and manufacture, and can add various additives. This kind of plastic is widely used, such as industrial packaging bags, agricultural plastic packaging bags, daily necessities, raincoats, sandals, toys and so on.
What are the categories of rice bags:
1. Ordinary rice packing bag: rice is packed in plastic woven bags made of polypropylene and other materials and sealed with suture. Preservation technology is not used in the packaging process. This kind of packaging method has relatively poor effect on insect, mildew and fresh-keeping of rice, and usually only plays the role of grain. The plastic woven bag has strong tensile strength and can be used to pack rice weighing more than 5kg. The shelf life is about 3 months.
2. Vacuum rice packaging bag: the use of vacuum packaging can reduce the oxygen concentration in the storage environment, inhibit the respiratory intensity and mold propagation of rice, prevent rice aging, mildew and pests, and better maintain the quality of rice. Due to the high vacuum degree, the packaging materials wrap the rice tightly, and the two ends of the rice are very sharp, so the packaging bag is easy to be punctured by rice grains, resulting in the failure of vacuum packaging. The friction, collision and falling between bags in the circulation process of packaging bags can easily lead to bag breakage. Therefore, the fresh-keeping packaging of rice packaging bags should be combined with the circulation environment at the same time in order to achieve good results.
3. Inflatable rice packaging bag: inflatable packaging is generally filled with carbon dioxide and nitrogen, which are colorless, tasteless and non-toxic gases with relatively stable chemical properties. Rice has the ability to absorb carbon dioxide, which makes the rice in a "sleep" state and prolongs the effective shelf life; Nitrogen filling reduces the oxygen concentration in the storage environment, inhibits the growth of microorganisms in rice, and plays an important role in slowing down the change of quality. Studies by most rice packaging bag manufacturers show that inflatable packaging can effectively maintain the quality of rice and prevent mildew and insect pests.
What are the categories of rice bags:
1. Ordinary rice packing bag: rice is packed in plastic woven bags made of polypropylene and other materials and sealed with suture. Preservation technology is not used in the packaging process. This kind of packaging method has relatively poor effect on insect, mildew and fresh-keeping of rice, and usually only plays the role of grain. The plastic woven bag has strong tensile strength and can be used to pack rice weighing more than 5kg. The shelf life is about 3 months.
2. Vacuum rice packaging bag: the use of vacuum packaging can reduce the oxygen concentration in the storage environment, inhibit the respiratory intensity and mold propagation of rice, prevent rice aging, mildew and pests, and better maintain the quality of rice. Due to the high vacuum degree, the packaging materials wrap the rice tightly, and the two ends of the rice are very sharp, so the packaging bag is easy to be punctured by rice grains, resulting in the failure of vacuum packaging. The friction, collision and falling between bags in the circulation process of packaging bags can easily lead to bag breakage. Therefore, the fresh-keeping packaging of rice packaging bags should be combined with the circulation environment at the same time in order to achieve good results.
3. Inflatable rice packaging bag: inflatable packaging is generally filled with carbon dioxide and nitrogen, which are colorless, tasteless and non-toxic gases with relatively stable chemical properties. Rice has the ability to absorb carbon dioxide, which makes the rice in a "sleep" state and prolongs the effective shelf life; Nitrogen filling reduces the oxygen concentration in the storage environment, inhibits the growth of microorganisms in rice, and plays an important role in slowing down the change of quality. Studies by most rice packaging bag manufacturers show that inflatable packaging can effectively maintain the quality of rice and prevent mildew and insect pests.
