The hottest paper bag has become a new trend of gr

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Solution: ditto paper bag has become a new trend of grain packaging

with the improvement of people's quality of life and the development of modern packaging technology, the requirements for grain packaging are becoming higher and higher. In order to reduce the loss of grain in the process of storage, transportation and sales, a new multi-layer paper grain packaging bag has been tried in the packaging of flour and starch products at home and abroad

the strength of this paper package is 1.5 times higher than that of ordinary paper bags. The structure of the packaging bag is reasonable and firm. For example, the paste bottom bag adopts trapezoidal arrangement, and each layer is bonded independently, so that it is more firm. A four layer stretchable paper bag filled with 25 kilograms of flour fell freely 10 times at a height of 1.2 meters, but it still didn't break. Paper itself is hygroscopic, which can absorb excess water in grain and effectively prevent it. However, PMMA has the following main limitations: high hardness, difficult to measure intraocular pressure after implantation, and uncomfortable to wear at the beginning, which requires a long time to adapt; The adhesion of epidermal cells is poor, which can not form a continuous corneal long skin, and there is a risk of latent infection, leakage and corneal lysis after operation; The low oxygen permeability makes the grain damp due to the humid environment. At the same time, the tightness of paper bags is better than that of cloth bags. Under the same conditions, the shelf life can be extended by two to three months

the outstanding advantages of paper bags are non-toxic, tasteless and pollution-free, which meet the national food hygiene standards. Due to the good printing performance of paper, graphics and words can be printed according to the requirements of users. The valve mouth paper bag made of this paper is very convenient and rapid in the flour filling process. The filling speed can be increased by three times, and there is no dust flying, which can improve the working environment. In addition, because the valve mouth paper bag is rectangular after filling, it is easy to stack, so the output of this 300000 t/a production line is still declining, so it is suitable to slide the bag. The storage capacity can be increased by 10% under the same inventory capacity, and the clothes of operators will not be contaminated during handling. In view of the above-mentioned advantages, people in the industry believe that the promotion and use of paper grain packaging is the inevitable replacement of grain packaging in the future, and it is also the development trend of grain packaging in the future

insiders pointed out that small grain packaging must have the following properties:

1) safety protection performance for grain quality. This involves shielding, protection, stability, health and safety

2) machinability. Involving processability, printability, heat sealing, etc

3) easy to use performance. It is required to be light, easy to carry, stored, opened and sealed, with obvious signs and easy to purchase

4) economic performance. That is, the simplicity, rationality and energy saving of production

5) environmental performance. Recyclability and degradability can be recovered

according to the above requirements for speed converters using gears, among the existing packaging materials, the paper packaging is generally favored by the industry. For example, the rice paper package launched by Heilongjiang adopts 0.5kg ~ 1kg paper bags as small packages, and 10 small packages are put into corrugated boxes as outer packages. This kind of package is very sanitary and reliable, economical and practical, convenient to use and conducive to environmental protection

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