Cork Tech Talk Blog

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.

Read more: Replacing Poly (PE) Coated Paper & Board

UV energy curing inks, coatings and varnishes provide the printer with many advantages and benefits over so called conventional products. These conventional products may be solvent or aqueous types in the case of flexo and gravure or oxidizing types in the case of litho or letterpress or a variety of types in the case of screen printing.

Read more: UV Inks & Coatings Offer Advantages When Foil Stamping

June brings on summer in the northern hemisphere and with it the possibility of high temperatures and high humidity. The last decade has brought on several unusually hot summers and even warmer than usual winters. Whether or not global warming is caused by industrialization and its practices or the result of a natural global cycle, we are faced with coping with the extremes.

Read more: Is it the Weather?

Cork’s CORK-CLEAN™ UV blanket, roller wash, and system flusher for UV inks and coatings is your answer for fast, effective, and safe clean-up. CORK-CLEAN™, formulated specifically as a companion wash-up product for Corks’ Green20™ and Greensoft™ UV coatings, has proven to be effective as an equipment, blanket, roller, and anilox wash for all commercial UV inks and coatings.

Read more: Cork-Clean™ Boosts Productivity

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 plates curing the glue, and subjecting the face of the liners to high heat and pressure such that preprinted inks must be protected.

Read more: High Graphics Corrugated Preprint Excels with Top Coatings

The U. S. Food & Drug Administration (FDA) has banned three specific perfluoroalkyl ethyl containing chemicals because of toxicity concerns. The chemicals have been used to make paper and paperboard packaging resistant to oil and water for use in contact with aqueous and fatty foods. Affected is 21 CFR Part 176 with §176.170 amended, effective January 4, 2016.

Read more: FDA Bans Chemicals in Food Packaging Coatings
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About the Author

Elmer W. Griese Jr, having accumulated 35+ years of knowledge working in the coatings and printing ink industries has now authored the Cork Tech Talk News, newsletter since 1992 producing 112 issues. He remains dedicated to educating and illuminating technological progress that offers the potential to advance coating technology and its applications.

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