Mystery of Drying Aqueous Coatings
It’s well known and understood that washed clothing dries when the wash water is evaporated. Similarly, paint dries when the diluent solvent is evaporated, leaving a film of dry paint solids. Aqueous coatings dry as volatile components (mainly water), about 60% of the typical formula composition, evaporate or are absorbed by a porous substrate. Coalescence […]
Using Humidity Control to Optimize Pressroom Productivity
OFFSET PRESSROOM AIR EVACUATION, WHY? The control of humidity is critical in offset printing in order to optimize productivity. It is well known that dry air causes paper to lose its moisture so that wrinkling, paper jams, and register issues are likely due to a pick-up in static electricity. A humidity level of 45 to […]
Gluing Aqueous Coatings
Two types of adhesives or glues are in common use to glue aqueous coated substrates. These are cold white glues and hot melt adhesives. The most widely used of these are hot melt adhesives which are a form of solvent-free thermoplastics. These are solid at room temperature and are melted to be applied as a […]
Aqueous Coatings: Storing, Handling & Using
Opening Aqueous Coatings Aqueous coatings may be thermoplastic or thermoset, emulsion or solution polymer blends. The major volatile component is water along with small percentages of other volatile items. Some of these, such as ammonia or amine can evaporate and accumulate in the headspace of a sealed container, therefore opening is best done in a […]
UV Coatings Change Impulse Buying Dynamic
Specialty UV Coatings Lead to Impulse Buying The creative use of decorative specialty UV printed coatings is opening the eyes of brand managers and impulse buyers alike. These attention demanding special effects UV coatings are proving to be capable of differentiating products and increasing impulse sales for retailers. What are the forces that stimulate us […]
Replacing Poly (PE) Coated Paper & Board
Nearly 7 million tons of coated paper, paperboard, and cardboard, are manufactured worldwide annually. The dominant coating material is petroleum based polyethylene (PE). Currently, alternative coating materials that don’t cause environmental harm throughout their life cycle are being sought because of consumer, political, and legislative pressure to reduce fossil fuel based plastics use.
High Graphics Corrugated Preprint Excels with Top Coatings
Preprint Preprint is the term used to define roll to roll printing of the outside liner of a corrugated box, before corrugating and converting operations. In corrugating, the corrugated medium (fluting) is glued between the preprinted liner and the inner liner, giving the structure rigidity, strength and cushioning. During corrugating the liners pass over heated […]
Work & Turn Aqueous Coatings
Work & Turn Work & Turn is a term used to describe the sheetfed litho practice of printing on both sides of a substrate. Typically, the first printing pass prints one side of the substrate. A second printing press pass follows as the job is turned and fed through the press again. The second pass […]
About Cork Industries
Cork Industries, We are Tomorrow’s Innovation. Cork is an Industry Leader in the Formulation of Sustainable Aqueous, UV, and EB Coatings, Varnishes, Adhesives, and UV inks for Graphic Arts and Packaging. Throughout our over 40-year history, Cork Industries has earned the reputation of providing innovative solutions to the challenging issues presented by the ever-changing converting, […]
