Cups of performance and printing technology

Frbiz Site


1, Introduction As the strengthening of national environmental awareness, on the one hand, the whole society to promote clean production, required the entire life cycle of the product should achieve energy conservation, consumption, conservation and wastewater reduction, efficiency initiatives; on the other hand, in order to comply with green packaging needs, requirements package product safety, health, good adaptability to environmental protection, energy saving resources. The production and use of paper cups just meet the national environmental policies, use of paper cups instead of disposable plastic cups to reduce the "white pollution", paper cups, cheap and convenient health of a wide market share instead of the other key containers. Cup cold cup by zoning and hot cups, paper cups, the material in addition to processing performance to meet the needs of its packaging, it must also adapt to meet their printing properties. Print technology in many factors have combined to satisfy the conditions of seal cups processing. The following material composition on the paper cups, printability some of processing performance.






crown wheel pinion


2, the composition of the material paper cup
flexible shafts


Cup cold paper cup base paper production process is the direct printing, die cutting, molding, spray the surface of food with wax. Process of making hot drinks cup base paper by the paper cup into the cup through Laminating paper, printing, die cutting, molding.








2.1 cups base paper composition


Cups base paper from plant fibers, their production process is generally used softwood, hardwood and other plant fibers through pulping by the ease after the pulp, refining, adding chemical supplies, filter, copy machine making, etc..








2.2 The composition of paper cups


Cup base paper and paper from the paper cups out of composite plastic resin particles composed of the general use of plastic resin, polyethylene resin (PE), paper cups base paper by Laminating single or double PE film PE film after a single PE paper Double PE paper cups or paper cups. PE has its own non-toxic, odorless, tasteless; Health and reliable; chemical stability; physical and mechanical properties of a balanced, good cold tolerance; against water, moisture and oxygen barrier some, oil resistance; excellent performance and very good shape combined the advantages of sealing performance. PE production capacity, sources of convenient, inexpensive, but not suitable for high temperature cooking, if the cups have special performance requirements, then drenches the membrane performance when used with the appropriate plastic resins.








3, cups of printability 3.1 cups substrate requirements 3.1.1 cup base paper surface requirements








Direct printing base paper cups should have a certain degree of surface strength (wax stick value 14A), to avoid appearing in print Linting phenomenon; also must have good surface sophistication to meet the print and written in uniformity.








3.1.2 Surface Treatment of pre-press


The base paper to be printed or basement membrane, the surface must be clean, dry, smooth, no dust, no oil, on the non-polar, dense and smooth surface of PE and other materials, its surface tension lower Only 29 ~ 31mN m-1, but also by corona treatment in advance, so that it changes the surface state, surface tension increased to the 40mN m-1, at least 38mN m-1 over Thus, printing inks to achieve a certain fastness.








3.2 cups requirements of printing ink


Requirements for paper cups printing ink fastness and better printing, printing with good acid, alkali, water, temperature, light, will not happen because of the role of these factors, fading, discoloration, shedding phenomenon; other printed matter have a good scratch resistance and gloss, semi-extinction and extinction of.








4, paper cup printing technology (outside of the normal printing technology to add)








4.1 ink components: the ink composition must meet the Food Sanitation Law and the corresponding food packaging hygiene standards.