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FLEXO Magazine : March 2011
Bobst Group North America, Inc. 146 Harrison Avenue, Roseland, NJ 07068 -1294 Tel: 888-226-8800 It would take a LOT to justify a new press these days. Consider it done. Small footprint. Minimal operating envelope. The 15-S is ideal for modern plants where space is at a premium and efficiency is a primary concern. It's unique face-to-face design enables both the unwind & rewind to be accessed and monitored from one central position. The highly efficient web path also minimizes the height requirement. Exceptional performance and features for a remarkable price. Every aspect of the 15-Series is state-of-the-art, except the price. From operator and maintenance accessibility, to speed and wide range of substrates, to premium F&K performance and quality — all at a highly competitive price. Today’s business environment requires solid reasons to move ahead. Examine the advances incorporated into today's Fischer & Krecke 15-Series flexo press and you'll have all the justifi- cation you’ll ever need. The Fischer & Krecke 15-Series Flexo Press Off-press set-up for minimal waste. Our revolutionary smartGPSTM, Graphic Positioning System, establishes registration and press settings before each flexo sleeve is mounted on the press. This eliminates the ‘trial and error’ fine-tuning of each color thereby eliminating over 90% of all of the materials wasted during typical job changes. Fastest changeovers in the industry. In addition to material waste, smartGPS also eliminates wasted time. When the sleeves are already set, press time is used to run jobs, not lengthy set-ups. Nobody else can do this because nobody else has anything like smartGPS. Bobst-F&K-15-S Ad_Layout 1 2/16/11 4:24 PM Page 1 Technologies & Techniques Table 1 – bond sTrengThs of inks iniTially TesTed. Ink Substrate Ave. Load Max. Load Mode of Failure EnviroLam with 2% retarder Saran Coated Polyester 631 destruct EnviroLam with 4% retarder Saran Coated Polyester 1456 destruct EnviroLam (version A) Saran Coated Polyester 1129 destruct EnviroLam (version D) Saran Coated Polyester 83 272 mixed decal/film tear EnviroLam with 2% retarder Corona Treated Polyester 1086 destruct EnviroLam with 4% retarder Corona Treated Polyester 1355 destruct EnviroLam Corona Treated Polyester 56 651 mixed ink decal/destruct EnviroLam with 1% amine add Corona Treated Polyester 161 268 ink decal EnviroLam with 2% amine add Corona Treated Polyester 164 582 mixed ink decal/destruct EnviroLam (version A) Corona Treated Polyester 1818 destruct EnviroLam (version D) Corona Treated Polyester 998 destruct 1/D PS + Lam 2/D EnviroLam Corona Treated Polyester 1245 destruct EnviroLam with 2% retarder Chemically Treated Polyester 1543 destruct EnviroLam with 4% retarder Chemically Treated Polyester 1338 destruct EnviroLam Chemically Treated Polyester 1077 destruct EnviroLam (version A) Chemically Treated Polyester 1525 destruct EnviroLam (version D) Chemically Treated Polyester 1226 destruct 1/D PS + Lam 2/D EnviroLam Chemically Treated Polyester 1092 destruct PS+Lam Chemically Treated Polyester 57 91 100% decal EnviroLam with 2% retarder Polypropylene 774 destruct EnviroLam with 4% retarder Polypropylene 1218 destruct 1/D PS + Lam 2/D EnviroLam Polypropylene 1100 destruct PS+Lam Polypropylene 115 209 Ink split/mixed ink decal EnviroLam (version A) Polypropylene 742 destruct EnviroLam (version D) Polypropylene 1399 destruct Adhesive: Solvent-free adhesive applied at 1.18 pounds/ream Laminate: LLDPE (808.24 PE 3.0 mil) Siegwerk EIC developed the current Envirolam system as a result of continuous support from critical industry suppliers. Portco Packaging of Vancouver, Wash., Environmental Ink’s print partner through much of the process, became a driver in this effort and assumed a leadership position in the industry in its quest to supply the most sustainable flexible package lamination construction. Adhesive companies such as Ashland, Dow, HB Fuller and Henkel have all been supportive during this developmental phase, along with Enercon Industries Corpora- tion, which offers corona treatment. Innovia and PLA Earth First Films provided bio-based films during the testing period. Siegwerk EIC, LLC was pleased with its first live demonstra- tion of solvent-free lamination, which took place at the 2009 Earth Day event. However, the results indicated that there was a lot more work to do before the company could achieve commercial success in solvent-free lamination. Environmental Inks set up evaluations with a number of converters to test the parameters of the system on major films being used for solvent-free lamination constructions. These films included saran-coated polyester, chemically treated polyester, corona- treated polyester, saran-coated cellophane and polypropyl- ene. The continuous testing was designed to determine what levels of bond were possible with each ink formulation on each substrate laminated to HDPE. The inks initially tested were too robust and not suitable for process printing or fine line graphics. (See Table 1.) Siegwerk was able to get mostly destruct bonds after im- proving the system for printability and resolubility. (See Table 52 FLeXO march 2011 www.flexography.org FLX_March11.indd 52 3/18/11 1:33 PM