On the one hand, the whole society advocates cleaner production and requires that the whole life cycle of products should be energy-saving, consumption-reducing, pollution-reducing and efficiency-enhancing measures; on the other hand, in order to meet the needs of green packaging, packaging product safety, health, environmental protection has a good adaptability, can save resources. The production and use of paper cups coincides with the national environmental protection policy, using paper cups instead of disposable plastic cups to reduce“White pollution”, the convenience and health of paper cups cheap is the key to replace other utensils widely occupy the market. The paper cup is divided into cold drink cup and hot drink cup according to its use. The material of the paper cup must meet the requirements of its packaging and processing properties as well as its printing adaptability. But in the printing technology many factors also must satisfy the paper cup processing hot sealing condition.
The Paper Cup material is composed of the cold drink cup production process is directly printed by the paper cup base paper, die-cutting, molding processing, double-sided through the film. The manufacturing process of the hot drink cup is that the paper base of the paper cup is coated into paper cup paper, printed, die-cut and molded. The Paper Cup base paper is composed of plant fibers, the pulping process is usually made from softwood, hardwood, etc. . The pulping fiber plants is decomposed, refined, added with chemical accessories, screened, and made on paper machines. The Paper Cup paper is composed of the paper cup base paper and the plastic resin particle extrusion composite, the plastic resin generally uses the polyethylene resin (PE) , the base paper of the Paper Cup becomes single Pe Paper Cup paper or double PE paper cup paper after it is coated with single PE film or double PE film. PE is non-toxic, odorless, tasteless, reliable in sanitary, stable in chemical, well-balanced in physical and mechanical properties, good cold resistance, water resistance, moisture resistance, oxygen resistance and oil resistance Excellent molding performance and good heat sealing performance. PE production, convenient source, low price, but not suitable for high-temperature cooking, if the cup has special performance requirements, then choose the corresponding properties of plastic resin film.
The surface of cup base paper requires that the cup base paper printed directly should have a certain surface strength (wax stick value ≥14A) to prevent the phenomenon of hair and powder loss in printing, and should have a good surface fineness, to meet the uniformity of printing ink.
Post time: Jul-11-2023