Advantages of paper plastic packaging bags
Pubdate:2022-01-10 14:15:32 Hits:4688
With the world's requirements for environmental protection, paper-plastic packaging bags are slowly entering the right track, so what are the advantages of paper-plastic packaging bags? The following is an introduction to Dongguan Bite Packaging Bag Material Co., Ltd.:
Paper-plastic packaging bag is a new type of packaging bag with high strength, anti-aging, high temperature resistance, moisture-proof, breathable, non-toxic and harmless. It is widely used in commodity bags in packaging food, fresh frozen food, starch, casein, feed, building materials, chemicals, minerals and other industries.
It has the following six advantages
1. Moisture-proof
Since PVA has excellent fluidity and film-forming properties, a layer of film will be formed on the inner layer of the paper-plastic packaging bag during the process of pressure compounding, which plays the role of compound adhesion and moisture resistance. There are many invisible holes on other surfaces, which can effectively prevent water molecules outside the paper-plastic packaging bag from entering the bag.
2. High temperature resistance
The strength of the paper-plastic packaging bag is mainly controlled by the warp and weft yarns. Because the vinylon water-soluble yarn has the characteristic that the breaking force of the single yarn is constant at 180. The ignition point of paper is 183 degrees, so the composite bag also has the characteristics of high temperature resistance.
3. Anti-aging
Since paper is a non-aging plant material and has the characteristics of opaqueness, the paper inside and outside the paper-plastic packaging bag can effectively protect the paper from aging under ultraviolet radiation, so that the packaging bag has the characteristics of anti-aging.
4. High strength
The strength of the paper-plastic packaging bag is mainly controlled by the warp and weft directions. Due to the counterclockwise rotation of the weft disc, many triangular mesh structures will be formed on the outer surface of the inner paper, which greatly increases the internal stress of the packaging bag and makes the packaging bag have high strength.
Five, stack non-slip bags
Because in the process of pressure compounding, many triangular mesh structures are formed on the outer surface of the paper-plastic packaging bag, which increases the friction coefficient of the outer surface of the bag, so that the bag will not slip during the stacking process (the height can reach 40 degrees) .
6. Protect the environment
Since the vinylon water-soluble yarn is not treated with resin acetal, it can be dissolved in 80% hot water to form a glue. After soaking, the inner and outer layers of the paper can be recycled to make recycled paper without polluting the environment.
Paper-plastic packaging bag, also known as three-in-one composite paper bag, is a small bulk container, which is mainly transported by manpower or forklift. Convenient for transporting small quantities of bulk powders and granular materials. It has the characteristics of high strength, good water resistance, high appearance and convenient loading and unloading. It is a popular and practical common packaging material at present.
Paper-plastic packaging bags are mainly used for packaging building materials, mortar bags, putty powder, food, chemical raw materials and other powdery or granular fixed materials and flexible items. In recent years, they have also been widely used in express packaging in the fields of online sales, three-dimensional wall stickers, car cushions, seat covers, etc.