Specialty Paper for Packaging

(1) Stretchable paper: Japan has successfully developed a type of stretchable paper that is entirely made from wood and pulp, without adding any synthetic resins, and can be directly pressed into packaging containers. This kind of paper is 5 to 10 times more elastic than ordinary paper. The strength of this paper packaging container is comparable to that of plastic packaging containers. It can be used to package daily necessities and food, etc. Not only is its production cost quite low, but it can also be recycled and is expected to replace plastic packaging containers.

(2) "Npimold Paper" Deep stamping Paper: Nippon Paper Co., Ltd. of Japan has developed a deep stamping paper named "Npimold Paper", which is entirely made of natural fibers. Its elasticity is 5 to 10 times that of ordinary paper. This kind of stamping paper can be molded into text, patterns and three sets of curved surfaces, similar to the processing of plastic products. Smoothing the convex image can achieve better sealing.

(3) Paper grain bags: Traditional flour packaging bags are still not satisfactory in terms of strength, moisture resistance and other aspects. The high grammage chicken skin paper used for making large and small packaging bags for flour has been basically tested successfully. This white chicken skin paper, produced from imported bleached coniferous wood pulp, features high whiteness, no fluorescence, strong tensile strength and meets hygiene requirements. The bottom bags made of it are bonded by trapezoidal bonding method. Each layer is bonded independently, and the layers are bonded together by spot bonding, thus making them more secure. Compared with ordinary paper bags, this new type of paper bag is 1.5 times stronger. A four-layer paper bag full of 25 kilograms was dropped freely 15 times from a height of 1.5 meters without breaking. This kind of paper bag itself is hygroscopic. Under the same conditions, the shelf life of flour packaged in paper bags is 2 to 3 months longer than that in cloth bags. Another feature is that it is non-toxic, odorless, pollution-free and meets the standards for grain hygiene.

(4) Special food packaging paper A solar insulation paper is a type of paper developed in the United States that can convert solar energy into thermal energy. Its function is just like a solar collector. If it is used to package food and placed in a sunny spot, it will continuously collect heat, which can heat and keep the food warm until the paper is opened, at which point the heat will dissipate. The far-infrared corrugated packaging paper developed by Japan can be processed into packaging boxes for fruits. It can extend the retention period of the activated state of water molecules in fruits, thereby extending the freshness period of fruits by more than twice compared to ordinary corrugated boxes. This kind of paper is made by first coating a layer of ceramic that can emit far-infrared rays on 100% natural pulp corrugated paper, and then coating a layer of polyethylene film on top of the ceramic to prevent it from falling off.