
Pira International, Surrey, UK, a third party research firm, was commissioned by the Foil Stamping & Embossing Association (FSEA) to conduct the study and produce the findings, which have been compiled in a 14-page study.
To conduct the study, foil stamped paper/board was utilized from both the more traditional hot foil stamping process and also the cold foil process. The evaluation included foil decorated product that represented 25 percent post consumer waste up to 100 percent post consumer waste, meeting levels that far exceed normal conditions. “It has become quite apparent that this study is extremely important to the long-term health of our industry and association,” stated FSEA Executive Director Jeff Peterson. “We are very excited with the positive findings of the study and are making every effort to communicate these findings to the graphic arts and packaging industries as quickly as possible.”
Along with the findings, the study describes the pulping and screening methods used in the research, and provides a complete analysis of the reporting results from the testing methods. The main conclusion from the study validates the recyclability of paper products decorated by both the traditional hot stamp and new cold foil processes. In addition, the study finds that neither hot nor cold foil-decorated products would give rise to problems found in other decorating processes that may render the decorated paper products unsuitable for recycling.
The Foil Stamping & Embossing Association is committed to providing its members and the industry at large with the tools to address the expanding number of questions regarding the topic of sustainability. The complete copy of the study is available for distribution. To obtain a copy or to receive further information, contact the Foil Stamping & Embossing Association at (785) 271-5816 or e-mail jeff@fsea.com.
Breaking Down The Facts
Hot vs. Cold Foil – Defining the difference
Cold Foil Printing is an in line process that works on rotary letterpress and rotary flexo presses closely duplicating hot foil stamping, typically used by label manufacturers. Cold foil printing is faster, more efficient, and does not require the costly dies associated with hot foil stamping. Household consumables, scented candles, wine labels, and cosmetic packaging are the most popular.
www.gocold.com/what_is_cold_foil.htm
Foil stamping uses heat and metallic film in a specialty printing process that produces a shiny design on paper, vinyl, textiles, wood, hard plastic, leather, and other materials. Instead of using magnetism, plates, or inks to print words and shapes, foil stamping uses dies, or sculpted metal stamps. The heated dies seal a thin later of metallic leaf onto a surface. The foil comes in a wide roll, large enough for several passes, backed by Mylar. The hot die works similarly to a letterpress. Once heated, it presses the foil against the substrate material with enough pressure that the foil sticks only in the intended places, leaving a slight imprint. www.wisegeek.com
Defining the difference between INGEDE and FINAT recycling measures
Two types of recycling measures were tested which include the INGEDE Method 12 and FINAT FTM-19 method. for each method the industrial conditions were replicated to provide a standard case for deinking and ‘standard’ recycling.
The INGEDE (Internationa Association of the Deinking Industry) Method 12 assesses the recyclability for printed products that have adhesive applications. In this method deinking chemicals consisting of 0.6% sodium hydroxide, 1.8% waterglass, 0.7% peroixde and 8.8% surfactant are used to remove ink from the pulp. The material is pushed thrugh a screen where particles are collected. This process DOES NOT reevaluate the materical passed through the screen during the downstream process. The rejected material is collected and assessed. www.ingede.de/ingindxe/methods/meth12pe.pdf
The FINAT (International Federation for Self Adhesive Labels) FTM-19 applies typicalpaperboard recycloing conditions and evaluages the contaminants in the pulp before AND after the screening process. This method does not focus on the rejected particals caught by the screen, but instead reviews the material that passes through the screen and measures its contamination, if applicable. This process is more labor intensive and costly since all material is collected and retested.
As per the FSEA’s report “the reason for the amalgamation of both methods is to combine the quantification of basic repulplability of the INGEDE approach with the measurement of the contaminants prior to screening inherent in the FINAT method, whih method also provides an assessment of potential problems in contamination of paper machine drying cylinders or felts by stickies.”
Recommended use of repulped foil decorated material include:
• Use in recyled grades that could not cause aesthetic problems such as fluting medium, inner plies of solid boards, book binding boards andwhite-top liners, spirally-wound tube and core stock
• if centrifugal cleaners effectively remove metallic particles then bleached foil decorated stock could be used in bleached grades depending upon the fibre source. Unbleached fibre could be used for linerboards, sack kraft and bag grades.
About Pira:
Pira International is a leading commercial consultancy, testing and meida business which specialized in retail supply chain technologies related to industries such as packaging, paper, plastics, printing, publicshing and consumer goods. Pira has established a reputation as one of the key knowledge providers in these industry sectors. www.piranet.com/