Tag: Eco-Friendly

  • Engineering Manager John Ferris Talks about Sustainability and Going Green at Flexo Concepts

    Engineering Manager John Ferris Talks about Sustainability and Going Green at Flexo Concepts

    What do 850 solar panels, a giant vacuum collection system, new LED lighting fixtures and a bunch of blue receptacle bins at 100 Armstrong Road in Plymouth have in common?

    They are all part of Flexo Concepts’ efforts to “go green.”

    Today we will talk with the engineering manager, the man behind the curtain, John Ferris, to find out the story behind these changes and how he is leading the way at Flexo Concepts when it comes to sustainability.

    John, tell us about some of the things Flexo Concepts has done to reduce its carbon footprint.

    For starters, Flexo Concepts installed a solar renewable energy system last year that produces 100% of the energy used by our company and the other tenants in the building. The blankproject, which included 850 panels on the roof, 40 power inverters and all materials required to connect the energy to the building and electric grid, was completed over five months. We are proud to say that our entire facility is now energy-independent!

    Also, two years ago, we equipped our entire facility with more efficient LED lighting. The scope of the project consisted of all Flexo Concepts’ manufacturing and administrative space as well as the parking lot and other common areas of the building complex. Every bulb in the office areas was exchanged for an LED lamp and all lighting equipment in the shop and common areas was replaced with new fixtures that contain LED lamps.Flexo Concepts Installs LED Lighting

    Could you describe some of the less obvious ways Flexo Concepts is leading the way in the industry with its sustainability practices?

    One of my primary responsibilities as the engineering manager is to look for ways to develop products using materials and processes that don’t have a negative impact on the environment. Our R&D team and material suppliers work closely together to create polymer doctor blade materials that not only deliver performance to printers but also offer eco-friendly options to help our customers meet their sustainability goals. One of the criteria we use to select new materials and material combinations for testing is the eco-friendliness of the polymerizing methods. For example, the main polymer used to make our TruPoint Green® doctor blade is created from carbon monoxide that’s recaptured from a steel mill. If this vapor were released into the atmosphere, it would break down into carbon dioxide which is a well-known greenhouse gas.

    Another example is the procedures we have in place to reduce, reuse and recycle waste throughout the company. Flexo Concepts recycles 100% of its manufacturing cardboard waste and has placed blue recycling bins at every desk and in common areas to collect office waste and food packaging. But, in addition to these more “typical” recycling practices, we have installed a central trim collection system in the manufacturing area to consolidate blade material waste. The system consists of a network of pipes from each point of plastic chip generation connected to a centralized suction machine. (As an added benefit, we found the system significantly reduced electricity usage by replacing the use of higher-amperage and landfill-disposable shop vacs at individual workstations.) The waste is then made available to be reused as filler by other industries.

    John, explain how this program could be adopted by other companies in the industry.

    Any company can install a solar system, LED lighting and recycling bins in their facilities. But our efforts reach beyond the bricks and mortar of our facility to the printing industry as a whole. Our customers choose plastic doctor blades in part because they help reduce their carbon footprint. Producing steel is a highly energy-intensive process that uses up large quantities of fossil fuels and releases a significant amount of greenhouse gases into the atmosphere. Producing plastic uses much less energy, emits smaller volumes of greenhouse gases, and has lower transportation requirements due to local sourcing of raw materials and its relatively lighter weight. Plastic blades, such as our TruPoint Orange® doctor blade for the tag and label market, also lasts longer than steel in the press, which results in less start-up waste and fewer order deliveries. We believe, by setting this example, we can inspire other organizations in the industry to turn to their supply chains to source more eco-friendly components.

    What is unique about your approach?

    Our desire is to not only pursue environmental responsibility for our company but also help our customers achieve their sustainability goals is what makes our approach different. To our knowledge, we are the only global doctor blade manufacturer that uses 100% solar carbon-free energy to power its entire facility and the only blade manufacturer that uses recaptured carbon monoxide as a feedstock in our products.

    While every company wants to be able to call itself “green,” we feel we have gone above and beyond to reduce energy dependence, improve efficiency, and recycle and reuse waste across our entire organization. Plastic, as a material, has developed a negative image in society due to a culture of “throwaway living,” its limited recycling and its inability to break down in the environment. As a manufacturer of plastic doctor blades in an industry that primarily uses steel (sometimes referred to as the “most recycled material on the planet”), we are working hard to change this negative image by promoting the “green” benefits of our operations and products.

    Thank you, John!

    [Read how we were awarded the “Calvin Frost Environmental Leadership Award” by the Tag and Label Manufacturers Institute in October 2018!]

    To learn about the environment impact of plastic vs. steel doctor blades:

    [Download our infographic, “The Environmental Impact of Doctor Blades”]

    [Read our white paper, “Reduce Your Carbon Footprint with Plastic Doctor Blades”]

  • The Environmental Impact of Doctor Blades

    The Environmental Impact of Doctor Blades

    Generally, printers choose plastic or steel doctor blades according to their graphic requirements (or maybe blade life or safety).  But, all else being equal, choosing the eco-friendlier material can help you reduce your facility’s carbon footprint.

    This infographic compares the environmental impact of the two most common doctor blade materials: steel and plastic. For printers looking for innovative ways to reduce their carbon footprint, this infographic may help you better understand the impact your choice in doctor blade could have on the planet. Take a look and complete the form to download the PDF.

    environmental impact doctor blades
  • TruPoint Green®: The New Kid on the Block Anilox

    TruPoint Green®: The New Kid on the Block Anilox

    blank

    What is TruPoint Green?

    TruPoint Green is a next generation polymer doctor blade for corrugated printers producing mid-level graphics.

    Why was TruPoint Green created?

    UHMW has always been the “standard” doctor blade used in corrugated applications. However, as graphics requirements grow, many printers are finding that UHMW can’t meter their mid-level line screen anilox rolls effectively. Corrugated printers are reluctantly turning to steel in these applications even though steel blades don’t last as long and can easily cut press operators.

    TruPoint Green is a blade that can handle these metering requirements while delivering the added benefits that polymers are known for – longer blade life and a safer alternative to steel.

    Why won’t UHMW work in these applications?

    UHMW is fine for basic graphics, but it lacks the precision for the higher graphic requirements today’s brand owners expect.  Why?  Because of the contact area between the blade and the anilox roll. A general rule of thumb is the smaller the contact area, the better the metering (or, the larger the contact area, the lower the metering quality).

    blankWhen it’s received from the manufacturer, a new UHMW blade touches the roll with a nice small contact area. But as the blade wears, the contact area gets very large, growing to as much as twice the blade’s thickness.

    The large contact area is made worse by the poor mechanical creep characteristic of UHMW. “Creep,” or “spring memory,” is the ability of a material to maintain its shape under force. For doctor blades, it represents how well a blade is able to maintain its original shape after being flexed. (View the Doctor Blade Mechanical Creep infographic to learn more)

    UHMW has poor creep; it relaxes under a constant load and doesn’t spring back very well. In fact, it loses 70% of its reaction force in the first 30 minutes of being used and 78% of its force over a 14-hour period. To maintain blade contact with the anilox roll, press operators have to increase pressure as the blade loses its elasticity. This increased pressure further increases the contact area and restarts the creep cycle (while accelerating blade wear). Ink film thickness grows, and printers end up with dirty print and ink waste.

    Who created TruPoint Green?

    TruPoint Green was created by and is exclusive to Flexo Concepts.  Being a doctor blade innovator, the company set out on a two-year journey to develop a product that could function as a drop-in replacement for UHMW with the right amount of creep to maintain contact area in these mid-level graphics applications.

    How was TruPoint Green created?

    Flexo Concepts started by developing a material that was stiffer than UHMW but with enough flexibility to achieve a good contact area with the roll, better mechanical creep and superior wear properties. After two years of testing and refining, the company found the solution it was looking for:  a custom compounded material that combines two different polymers. In lab tests, our engineers were happy to find that the material demonstrated better stiffness and only half the creep of UHMW and a much lower wear rate than that of steel! As a result, press operators see better print quality and don’t have to stop their presses as often for blade adjustments and changes.

    Where was TruPoint Green created?

    The proprietary material was developed and extensively tested in Flexo Concepts’ state-of-the-art Doctor Blade Innovation Lab in Plymouth, Massachusetts. Our customers spent over a year conducting additional trials of TruPoint Green in their plants to help us refine the material.

    Is TruPoint Green “green”?

    In addition to providing an effective blade solution in mid-level graphics applications, Green also helps printers reduce their carbon footprint! The main polymer used to make Green is created from recaptured carbon monoxide from a steel mill. If this vapor were released into the atmosphere, it would break down into carbon dioxide, a well-known greenhouse gas.

    To sum it up, TruPoint Green offers a blade option for corrugated printers looking for a drop-in replacement for UHMW that meters as well as steel. With better stiffness, creep resistance and blade life, Green is the best alternative to UHMW and steel in mid-level line screen applications.

    So… When will TruPoint Green be available?

    It’s available NOW!  Visit www.flexoconcepts.com/green-doctor-blade to learn more.

    Request a Free Sample of TruPoint Green
  • 5 Reasons to Switch to Polyester Containment Blades

    5 Reasons to Switch to Polyester Containment Blades

    TruPoint Polyester Containment Blade for flexo printing

    Switching to polyester containment blades from steel can offer several benefits for printers. Here are the top 5 reasons to make the switch: 

     1. Elimination of Back Doctoring: 

    Some printers encounter back-doctoring issues at higher press speeds when using steel containment blades. Steel blades are too rigid to allow back-doctored ink to flow back into the chamber, leading to ink buildup and negatively affecting press uptime. Polyester blades, while effectively containing ink, are flexible enough to enable back-doctored ink to return into the chamber, preventing back-doctoring and maintaining print quality. 

    2. Cost Savings: 

    Polyester containment blades are significantly more cost-effective than steel blades. The price per inch for polyester blades is typically one-third to one-half that of steel, making them a cost-efficient choice for printers. 

    3. Enhanced Safety: 

    Replacing the steel containment blade in a chamber with polyester reduces the risk of doctor blade injuries by 50%. Polyester blades are safer to handle, as they don’t pose the same cutting hazard as steel blades during installation and removal from the press. 

    4. Prevention of Anilox Damage: 

    Polyester containment blades are gentle on anilox rolls. They won’t score or damage the rolls, and the material contains no sharp fragments that could break off and harm the engraving on the roll. This non-abrasive quality helps extend the life of anilox rolls, saving on the expense of re-engraving or replacement. 

    5. Reduced Environmental Impact: 

    Polyester containment blades emit a smaller amount of carbon dioxide during production compared to steel blades. Using polyester blades can help printers meet environmental requirements for reducing their carbon footprint, contributing to an eco-friendly printing process. Switching to polyester containment blades reduces downtime and provides a lower per-unit cost while delivering safety benefits, reducing back-doctoring, and lowering the environmental impact of the printing process. It’s a small change that can make a significant difference in efficiency and overall performance in the pressroom. 

    Polyester containment blade coil

    Request a Free Sample of TruPoint Polyester
  • Corrugated Ink Delivery Systems: Two-Roll or Doctor Blade?

    Corrugated Ink Delivery Systems: Two-Roll or Doctor Blade?

    blankThe flexographic ink delivery process has come a long way since the days when “Fragile – Do Not Drop” and “This End Up” were the only requirements of box printers.  New press designs are able to achieve the quality of work that has traditionally been done by litho lamination, and corrugated printers have to produce a consistently high level of quality to compete.  The evolution of the ink delivery process from a two-roll ink metering system to the enclosed doctor blade chamber has made this possible.

    There are currently three types of ink metering systems used in corrugated printing applications:  the two-roll system, the single blade system and the enclosed doctor blade chamber system.  All three systems rely on an anilox roll to transfer ink to the plate.  The difference lies in how the ink is applied to the anilox roll.

    corrugated two roll inking system
    Two roll corrugated inking system

    The Two-Roll Ink Delivery System

    In the original two-roll ink metering system, a fountain roll rotates partially submerged in an open ink pan, picking up ink and applying it to the anilox roll.  The anilox roll transfers the ink to the plate cylinder which then lays it down on the sheet.  Though still widely used in the industry, there is a lot of variability in the two-roll system which results in a lack of control over the amount of ink transferred to the plate:

    • Imprecise wipe of the anilox roll leads to inconsistent volume of ink delivered to the sheet.
    • Color strength fluctuation and ink slinging can occur at higher press speeds due to the hydraulic force between the rubber roll and the anilox roll.
    • Transfer characteristics vary according to the hardness or “durometer” of the rubber roll.
    • Ink viscosity is subject to evaporation, dust and surface skimming due to the open tray design.
    corrugated single blade inking system
    Single blade corrugated inking system

    Single Doctor Blade Ink Delivery System

    The addition of a reverse angle doctor blade added precision to the ink metering process.  In the single blade ink metering system, a doctor blade made from steel, plastic or a composite material is used to replace the rubber roll.  The blade is installed just beyond the ink metering nip to shear ink from the anilox roll surface.  Doctor blade ink metering systems give the printer better control over the volume of ink being delivered to the plate.  Where a rubber roll often leaves an additional ink film on the surface, a doctor blade shears ink cleanly from the roll.  The inks perform better on press and a printer can achieve a more consistent ink film thickness.  Ink consumption is reduced, and color application is consistent across the sheet even at higher press speeds.

    corrugated chamber doctor blade inking system
    Chamber doctor blade corrugated ink delivery system

    Enclosed Chamber Doctor Blade System

    The most recent development in the flexographic inking process is the enclosed chamber doctor blade system.  In this system, two doctor blades are used along with an enclosed chamber to dispense the ink to the anilox roll.  The reverse angle blade acts as the metering blade and wipes excess ink from the anilox roll.  The trailing blade acts as a capture or containment blade and holds the ink within the chamber.  Foam, rubber or felt gaskets seal both ends of the chamber and keep ink from leaking out.  The ink is delivered through a closed loop from the ink pump to the doctor blade system and then back to the pump.

    With this method, a printer can maintain ink viscosity because the enclosed design provides protection from evaporation of solvents or amines from the ink, depending on whether the ink is solvent or water-based.  Also, dust, slinging and skimming are minimized.  Better control over ink usage means lower ink consumption by as much as 15% per year.  The system holds less ink than open pans, so there is not as much leftover ink at the end of a press run and ink can be removed and stored for future use.

    blank blankDue to a more efficient cleaning process, a smaller amount of cleaning solution is needed to clean up a chamber so cleaning solution waste and disposal costs are also reduced.  Color changes are quick, speeding up changeover and setup time on a run.  The enclosed chamber system is more eco-friendly because of reduced ink consumption and disposal of waste ink as well as a lower volume of cleaning solution and water required to wash-up the station for a color change.

    After years of being relegated to jobs with low graphics requirements, flexography now rivals other printing methods for quality.  Today’s corrugated printers are able to produce products that are highly attractive and eye-catching to the consumer due to advances in the ink delivery process.  Whether they opt for a single doctor blade system or see the benefits in investing in a dual blade enclosed chamber, printers gain clear advantages by using doctor blades in terms of controlling ink film thickness and maintaining color consistency.

    Request a Free TruPoint Doctor Blade Sample