e tivac ami y of Form-Fill-Seal Packaging Machinery

Packaging - Processing Bid un Equipment 1-847-683-7720 www.bid-on-equipment.com

From our smallest infinite number of Multivac, less than seven configurations are possible to feet long, to the largest yet ensure that your machine built (an R7000 over 45 feet is perfectly adapted to in length), each Multivac is your operation. custom designed for specific People who know applications. In configuring manufacturing technology each of these custom understand that it is difficult to machines, your company's achieve maximum flexibility future growth and and efficiency at the same possible need to package time. However, a properly new products are configured Multivac always always considered. gives you high efficiency and Because of our modular usually gives you a high degree approach, there is no of versatility as well. "typical" Multivac. The The ability of Multivac designations R7000, R5200, form-fill-seal equipment to run M855 and R80 actually refer today's diverse packaging to base machine modules. materials is an important key With each module, an almost to productivity gains, and is a true test of our machines' versatility. It's here that Multivac clearly excels.

Packaging — Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com MULTIVAC 7 Over the years, the product shelf life and "loading area." Here the Multivac engineering preserve freshness product is put into the formed concept of modular design and color. package pockets has proven to be a The areas involved in the automatically or by hand. powerful one—successful in modular "assembly line" 5)Evacuation & Sealing. thousands of rollstock process are, briefly: Once product has been packaging applications. 1)Film Unwind. The loaded, the lower and upper As the word rollstock lower web of film is fed into webs move into the sealing implies, the packaging gripper chains which hold the die. In most cases, air is materials are taken from film firmly on both sides evacuated out of the die at rolls, fed into the first throughout the form-fill-seal this point and, if desired, machine module and packaging process. various gases can be back- automatically—in assembly 2)Heating. For most flushed into the packages. line sequence—converted forming applications, the film During the subsequent into finished packages. These must be preheated before sealing process, heat and finished packages may be forming. This heating pressure seal the upper vacuum packages, where process may occur inside the virtually all the atmosphere forming die or immediately has been removed and the preceding it. package wall clings skin tight 3)Forming. The film to the contour of the product. enters the forming area In other applications, where where it is heated and it's desirable to avoid the vacuum or compressed air is crushing effects of vacuum, used to pull or press the film an inert atmosphere such as onto the die. Once inside the nitrogen may be back-flushed forming die, the heated film into the package to keep the can be negatively formed package wall away from the against the die bottom or product. Modified positively formed around a atmospheres consisting of male plug. gases such as 0 2 and CO2 4)Loading. The next area may be added to extend is called the "filling area" or Packaging - Processing Bid on Equipment 8 MuLTIVAC 1-847-683-7720 www.bid-on-equipment.com M ULTIVAC The Modular Approach To Form-Fill-Seal Packaging

and lower webs to form shapes. Cross cutting Almost all Multivac air-tight hermetically sealed separates the packages systems have these basic packages. across the web. Then, one of elements in common. On the 6) Package Separation. many longitudinal cutting next few pages we will There are a number of cross units cut the packages apart describe in more detail these cutting units available to lengthwise. The finished modular sections of Multivac accommodate a wide variety packages are then discharged packaging machines, as well of materials and package from the machine. as other features and options available.

0

1) Film Unwind

4) Loading

5) Evacuation and Sealing

6) Package Packaging - Processing Separation Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com

Film unwind, infeed & transport Virtually any thermoformable and heat sealable packaging material, flexible or semi-rigid, can be run on Multivac equipment. We generally build Multivacs to accommodate one film width, from 260 mm (10.24") to 650 mm (25.6") in 1 mm increments. However, our variable web widths option (available on model R7000) allows a single Multivac to handle various film widths within specified ranges. Film gauges up to 70 mils thick wound on three- or six-inch cores can be used.

1/2" or 5/8" Pitch, Large Tolerance Gripper Chain. The lower web of film is fed into the gripper chain (Fig. A) which holds the film firmly on both sides throughout the packaging process. The large tolerance (up to 5 mm) chain keeps the web perfectly flat and taut. Due to its -40 camming action design, it can pick up heavy gauge materials without snap-in difficulties associated with other gripper chain systems, thus eliminating flex cracking. The camming action also enhances trim release at the discharge Camming action gripper chain. end, and trim strip wraparound is virtually eliminated. • 1/2" pitch chain accommodates up to +2 mm film tolerance • 5/8" pitch chain accommodates up to +5 mm film tolerance Standard Unwind. (Fig. B) Non-powered system for use when medium range (6 to 20 mil) materials are used. Expanding Mandrel Unwind. (Fig. C) Non-powered system with a rotating and expanding mandrel. Compensates for material core irregularities and eliminates "dusting" problems created by friction between the material core and stationary mandrel. Powered Unwind with Expanding Mandrel. (Fig. D) In addition to the benefits of the expanding mandrel system mentioned above, the power assist feature makes this system ideal for materials that will not tolerate stretch or materials that have very sensitive sealing properties. This system is also recommended for use with extremely thin gauge materials. Jumbo Unwind. (Fig. E) Motor assisted unwind system with power lifting mechanism. Designed to accommodate large rolls of material up to 1000 mm (39.37 inches) in diameter—rolls too heavy to lift. Reduces number of film changes and therefore increases production output. Available options for unwind systems: • 3" or 6" core adapters • Material splice selector • Low- or no-web warning—audible or visual • Dual unwind units for upper webs • Pre-advance unwind system • Special jumbo unwind for expanded foam rolls-88" max. dia.

10 MULTIVAC Packaging - Processing Bid on Equitiment 1-847-683-7720 www.bid-on-equipment.com

Heating station All films, with the exception of special multi-layer aluminum films, are formed under the influence of heat, hence the term "thermoforming." This heating process softens the film, making it easier to form. In some applications, the film must be heated almost to its melting point in order for it to form properly. In any case, the ability to precisely control the film heating stage of the form-fill-seal process is of utmost importance. Several heating station configurations are available. Which one is specified depends on the type of rollstock materials used and the desired cycle speeds. The heating station can be included in the top of the forming die or can be a separate station or stations immediately preceding forming.

Standard Top Heating. The heater assembly (Fig. F) is located above the film in the forming station. The film is heated for forming when it is forced up against the heater by compressed air from below or vacuum from above. Suited for use when lighter gauge, flexible or semi-rigid materials are used.

Single Preheater. Here the heater assembly is located below the film, one advance prior to the forming die. (Fig. G) For use on plug-type forming dies where semi rigid materials or increased cycle speeds are important factors.

Double Preheating. Heater assembly is located below the film one and two advances prior to the forming die (Fig H). Specified for applications where single preheating is inadequate.

Sandwich Preheating. Heater assembly is located above and below the film (Fig. I). Can be installed one, two and three advances before forming, depending on application. Sandwich preheating is used in applications where maximum heating of heavy gauge material must be obtained. Available options and configurations for heating: • Isolated heating (use to avoid heating package sealing flange area) • Total heating (used to heat the entire web of film) • Top heat • Lower heat • Top and bottom heat

MULTIVAC 11 Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Forming Several methods of thermoforming are used by Multivac, yet they all stem from two basic processes:1) negative forming, where the film is pulled into a concave-shaped mold; or 2) positive forming, where the film is formed by a convex-shaped plug.

Standard negative forming.

1 11M

Forming Dividers plates

Film is pulled by vacuum into Film is formed into the contact with heating station concave-shaped negative die. located above the forming die. Negative forming Depth Generally, negative forming is the simplest method, and is specified for a plates wide variety of applications using thin and thick gauge materials. Diebox The film is heated and then pulled into the mold by vacuum, or pressed in by compressed air. As the depth of the negatively formed package increases, the bottom edges and corners of the package begin to thin. Depending on the package design and the material being used, it may become necessary to pre-stretch the film mechanically prior to pulling it into the negative mold. This is accomplished by use of a plug (Fig. B, C). The plug, which is often heated, redistributes the package material so that the vital corners and bottom edges remain relatively thick. Even though a plug may be used in the negative forming process, the package still gets its final shape from the female mold. Negative forming with dividers and inserts. One common die box can be fitted with interchanging dividers (Fig. A), forming plates and depth plates to produce a wide variety of package shapes and sizes.

Plug assisted negative forming.

Plug C assist modules Top heating station

1) Plug located above 2) Plug pre-stretches 3) Film is drawn into Forming Bottom the female die. Heating the film prior to the concave-shaped divider & heating station is one advance negative forming. negative die. insert set station prior to forming die.

12 MULTIVAC , INC. AccuFornf positive forming.

1) Male forming plug 2) Plug drives downward 3) Film is drawn into located above the web into the film, distrib- intimate contact with line of the heated film. uting materials into the the heated male plug. corners and bottom edges.

Positive forming The Multivac positive forming method (Fig. D), used for rigid films only, offers the major advantages of 1) precisely controlling the thickness of the package wall, 2) forming detailed shapes on the bottom and side walls of the package (i.e., scale gradations, support ribbing, nesting lugs, company logos, etc.), and 3) forming small radius corner packages from relatively thin and, therefore, inexpensive films. In positive forming, the package takes its shape from being drawn into intimate contact with a heated male plug (Fig. E). Every detail on the plug's surface is formed into the package wall.

Typical examples of packages requiring top and bottom forming: rigid/rigid reclosable and flexible/ flexible with centrally located flanges.

Top forming—negative and positive Thus far, we have discussed methods of forming the bottom web only. Many package designs require the top web to be formed in addition to the bottom web. This is made possible by positioning another forming station between the loading area and the sealing die Of the Multivac. Both negative (Fig. F) and positive (Fig. G) forming methods can be employed in top forming. Flexible and rigid materials can be top formed. Packages requiring centrally located flanges or reclosable lids are typical candidates for top forming. Available options for forming: • Cooling stations • Electronic depth control • Cold foil forming • Matched male-female forming Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Loading Once a pocket has been formed in the lower film web it is indexed into an open area between the forming and sealing dies. This is the loading or filling area. Product can be loaded into the formed pockets by hand (Fig. A) or by a variety of automated counting, portioning, filling and weighing devices. Vibratory loaders, bowl feeders, pick-and-place units (Fig. B), robotic systems and slicers (Fig. C) are just a few of the types of loading equipment being used to load Multivacs. Knee-free loading stations are available to allow operators to sit during manual product loading.

Loading options available: • Knee-free execution • Solid side frame construction • Stainless steel loading grids to prevent seal contamination • Stainless steel chain covers • Product protrusion detectors to sense product above web line • Empty pocket detectors to sense missing product • Anodizing for caustic environment protection

Evacuation & Sealing Lidstock As the product-filled pocket indexes into the sealing die, it is covered by the upper web or lidstock. Whether the lidstock specified is to be a multi-layer construction with high moisture/oxygen barrier properties, board stock, or paper type construction to accept on-line printing, it must be handled with the same precision as the bottom web. The following will explain how lidstock is mated to the lower web and how evacuation and modifying of the atmosphere inside the package takes place.

Evacuation The air In many applications, especially those involving perishable product, it is around the necessary to evacuate or remove the atmosphere from the package. This product and in the die evacuation process occurs within the sealing die. chamber is Once the product-filled pocket, loosely covered with lidstock, is inside the evacuated. sealing die, the die closes. The air around the product and in the die chamber is evacuated (Fig. D), creating a nearly perfect vacuum. At this point, there is In one move, equilibrium inside and outside the package so the package wall doesn't collapse a heat seal- around the product. ing unit hermetically Modifying atmosphere seals top, An inert gas can be back-flushed into the package (Fig. G) to keep the bottom webs package from crushing or compressing soft or delicate product once the together. sealing die is vented. In addition, various gas mixtures can be used to achieve Die is extended shelf life and product sensory appeal. vented. Vac- Two methods of back flushing the already evacuated package are available: uum inside 1) Nozzle gas flushing (Fig. J & H) uses a thin row of vanes positioned package between the upper and lower webs to inject gas (in the machine advance causes film direction) into the package. The nozzle system is used only in flexible top and to contact bottom web applications. product.

14 MULTIVAC 2) Pin gas flushing system (Fig. I) injects gases into the package from the opposing sides of the die chamber. The pins raise and lower with the die bottom and protrude through holes punched in the lower web prior to the sealing die (Fig. K). Pin gas flushing may be specified for flexible applications, but is always used for semi-rigid or rigid applications. Which gas flushing system is best suited for a given design depends on package materials and die configuration.

After evacuation and before sealing, "modified atmosphere" can be back- flushed into the package. Nozzle gas flushing. Pin gas flushing. Controlling gases To obtain precision vacuum levels and gas mixtures, an electronic control system is available (Fig. M). The system allows the machine operator to pre- set vacuum and gas levels. The result is consistent cycle-to-cycle oxygen residuals. As many as three gases can be mixed externally prior to injecting into the package (Fig. L).

Sealing With the evacuation and gas flushing sequences completed, the package is now ready for the mating of top and bottom webs. In a single motion, a heat sealing unit hermetically seals the two webs together (Fig. E). The pressure and temperature involved can be precisely controlled to best affect the materials being used. Just as forming dies are custom designed and manufactured for each package application, sealing dies are likewise tailor- made modules. As illustrated below, Multivac offers three basic types of sealing systems (Fig. Q): 1) total seal (Fig. N), 2) radius seal (Fig. 0), and 3) flat seal (Fig. P). Infinite variations on these formats are possible, ensuring a custom designed seal for any given package application.

Evacuation and Sealing options available: • Internal or external vacuum pumps • High speed evacuation for pre-stored ready vacuum • Evacuation for product with high liquid content • Electronic controlled evacuation and gas flush system • SkinPakTM total sealing system • ShrinkPakTM steam injection system • KwikbreatheTM dual upper web system N • Peel tabs • Grid Seal Total seal bar.

Perimeter seal bar with radius profile.

Perimeter seal bar Sealing die with with flat profile. seal bar Packaging - Processing shown in red. Bid on Equipment 1-847-683-7720 MULTIVAC 15 www.bid-on-equipment.com Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Steam Shrink Unsightly package wrinkles are a long-standing problem associated with vacuum packages from flexible materials. Multivac's Steam Shrink system effectively deals with this problem by eliminating package wrinkles before they have a chance to form. Inside the sealing/evacuation die, just after the top and bottom webs have been sealed and just before the die is vented to outside atmosphere, the Steam Shrink system injects a measured amount of superheated steam into the die. As the steam hits the high-shrink film, the film begins to return to its flat, non-thermoformed state, eliminating the formation of wrinkles. Next, as the die is vented and outside air pressure pushes the film into tight contact with the product, the wrinkle-free film adheres intimately to the product surface. The result is visually striking. The wrinkle-free appearance helps distinguish the Steam Shrink packages from other packages in the retail display case. wylLtja kmx Steam Valve Vacuum Cross Section 1 Vacuum of Steam Shrink ► ► 0 Vacuum Valve (shown as Sealing Die blue) Steam Generator Film Valve Steam Condenser The entire Steam Shrink process occurs within the normal evacuation/ 0 sealing cycle. No additional time is required. The packages are dry as they Water come off the end of the machine and are ready for normal handling. Softener n The Steam Shrink system is installed as an integral part of the Multivac. It consists of: 1) a water deionizer, 2) a steam condenser, 3) a steam generator, 4) a heated die bottom, and 5) pressure control valving.

Package Separation After the packages have been formed, filled and sealed, accommodate today's diverse packaging materials—from they are still connected to each other and are part of both heavy gauge rigids to lightweight flexibles, foil laminates, continuous webs of film. To convert the packages into papers and Tyvek®. finished units, they must be cut apart—first across the In addition to shaping the outside package edge, width of the machine (latitudinally), then longitudinally. Multivac cutting systems can be used to incorporate Multivac offers a wide range of cutting systems to package features such as tear notches, hanger holes, produce virtually any finished package shape, and to perforations, etc.

16 MULTIVAC Latitudinal (across web) Cutting

Types of Cuts Flying Knife (Fig. A). For flexible film applications only. A chain-driven blade operated by a pneumatic rack and pinion drive. Can be equipped to use one of two blades: 1) double- edged hardened steel blade, or 2) off-the-shelf single edge Stanley knife blade.

Guillotine Cross Cut Assembly (Fig. B). A pneumatically operated serrating blade that provides an easy-open perforated feature for all • • • • • flexible packaging materials. When used with a blade without set, the guillotine assembly produces a continuous fiber-free cut. Can also produce serrated easy-open edges, hanger holes and tear notch features.

Across Machine Shear-Cut (Fig. C). Consists of a set of top and bottom blades which work in a scissor-type zero clearance action. This cutting system produces fiber-free package edges and eliminates cold tacking problems associated with certain materials. Across Machine Matched Male/Female Strip Cutting (Fig. D). Uses critically aligned top and 11111n11101n114 bottom punches to remove a "strip" of material from the heat-sealed webs, thus creating two fiber-free edges with each pass. This system combines strip removal and corner rounding into one cutting tool.

Steel Rule Cutting (Fig. E). A very effective cutting system for heavy gauge materials including rigid, semi-rigid, flexible and multi-layer aluminum. Hardened steel anvil, located in the • • lower press, bottoms out against stationary steel rule blades mounted in the head, to produce a straight cut and/or corner cuts. Units can also be combined with hanger hole features.

Longitudinal (in web-travel direction) Cutting

High-Speed Rotary Knife (Fig. F, p. 18). Blades are motor driven and rotate only during machine advances. The blades are inexpensive and can be resharpened.

Squeezing Knives (Fig. G, p. 18). Pneumatically controlled blades that "crush cut" against a hardened steel backup roller. This system generates very little particulate matter, even when cutting heavy gauge semi-rigid materials. Used primarily for perforations Packaging - Processing between packages. Bid on Equipment

1-847-683-7720 MULTIVAC 17 www.bid-on-equipment.com ac aging - • rocessmg Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Longitudinal Shear Cut (Fig. H). Top and bottom circular self-sharpening blades cut with scissor-type action. Produces fiber-free package edges and can be used for single straight line cutting or for removing a minimum 4 mm strip between packages.

Total (360°) Cutting Rigid Shape Cutting (Fig. I). Matched male/ female die punch cutting system that cuts the entire rigid package edge in a single "one-stamp" pass. Cuts almost any package shape and configuration, and produces package edges free of particulate matter. Completely eliminates hang nails and sharp edges sometimes associated with two-step cutting systems. For use with rigid films only. Flexible Shape Cutting (Fig. J). Single edge blade mounted on an electrically driven chain. Chain and blade follow a custom designed track to cut circular shapes or virtually any other package shape imaginable. For use with flexible materials only. Trim Removal Vacuum Trim Removal System. Pulls longitudinal trim strips away from the machine. Also picks up hanger holes and corner rounding shapes punched out by across-the-web machine cutting systems. Trim Rewind System. For use when trim strips are too wide to be pulled off by a vacuum removal system. Also used in applications where a matrix has been created by the cutting system (i.e., rigid or flexible shape cutting). The scrap is removed by a reel or reels located over the discharge end of the machine. Top web material can be rewound separately from bottom web for waste reclamation programs. Trim Choppers. Electrically driven high speed shredding/chopping blades reduce trim strip material before it is pulled into a vacuum waste container. Especially useful for heavy gauge materials where trim strips accumulate quickly. Discharge Conveyors In most cases, as the package is separated from the webs of materials and the other packages in its formed configuration, it lowers onto a discharge conveyor. Multivac offers discharge conveyors to accomplish many package handling functions. For instance, discharge conveyors may be used to connect the Multivac to additional equipment for such purposes as weighing, coding, cartoning, bundling, palletizing, etc. Special channelizing conveyors are available to bring packages from a multiple track die into a single lane with equal spacing in between. Most Multivac discharge conveyors operate in synchronization with the machine and are powered by the machine's drive system. Continuously looping conveyors have their own electric control.

18 MULTIVAC Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com Printing, Code Dating & Labeling The most efficient time to print, code date or label a form-fill-seal package is while the package is still on the Multivac and held securely in position by the intermittently advancing gripper chains. Accordingly, Multivac offers a wide variety of equipment for labeling, indentifying and describing the packages or contents of packages manufactured on its machines. All systems are engineered to operate in synchronization with the Multivac packaging machine. Multiprint Hot Stamp Printer For heated embossing of changeable data such as sell-by dates, product codes, etc., on plastic upper web materials. Ideal for applications that subject the package exterior to high temperatures (i.e., pasteurization, retort, or cook-in). Also recommended when total surface sealing or steam shrinking of the package is required. Unit functions by pressing the film against an embossing ribbon backed by a heated and thermostatically controlled embossing die. One Multiprint unit is required for each row in the forming die (Fig. A). Hot Ink Printer For imprinting changeable data such as sell-by dates, product codes, etc., on plastic upper web materials. Specified for applications where heat embossing is not required (i.e., packages that will not be further processed in high temperatures). System uses a special ink that is hard and dry at room temperature. A heating chamber softens the ink. For every cycle of the machine, the roller re- inks a heated embossed printing slug. The film web is imprinted when it is sandwiched by pressure between the inked slug and a backup plate. Once the ink is transferred, it immediately cools and rehardens (Fig. B). P-100 High-Resolution Flexographic Printer Uses state-of-the-art flexographic technology to produce high resolution, quality printing on paper or Tyvek® webs up to 620 mm wide (Fig. C). Printing quality is equal to or better than that supplied by converters, thereby eliminating the need for outside purchases and inventorying pre- printed materials. Brands, logos, line drawings, and even photos can be effectively reproduced. A raised-surface, inked photo polymer plate mounted on an aluminum drum directly contacts the upper web material. An upper and lower loop system intermittently pulls the material through the printer while the forming and sealing dies are closed. Thus the materials are imprinted while being held in a static position. The feed mechanism for the water-based, quick-dry ink includes an analox roller that turns continuously against a doctor blade. The ink supply constantly recirculates. Plate changeover and clean-up are simple and quick. To change images, simply remove the quick release 245 mm print drum and apply a new polymer plate. For recurring runs, the use of multiple drums, each with its own plate, is recommended. P-9 Flexographic Printer For printing smaller amounts of information on paper or Tyvek® Multivac also offers the P-9 printer, which prints during each machine cycle at right angles to the stationary upper web (Fig. D).

MULTIVAC 19 Uses fast-drying, water-based ink. The photo polymer plate receives ink from a transfer roller. Printing takes place during the forward movement of the print drum across the stationary web. A back-up plate is pressed pneumatically against the printing drum and goes back to its starting position when the drum returns. Dot Matrix Printer Control of the system is integrated into the Multivac's microprocessor (Fig. G). Data entry is very flexible and operator input is minimal. Various type sizes as well as upside-down characters can be selected. Dates, lot numbers and sequential numbering of packages are easily programmable. The dot matrix printer uses a conventional typewriter ribbon cassette and prints lines up to 620 mm wide on paper or Tyvele' Code Dating System This is an air operated, reciprocating coding system (Fig. H). Several print heads can be mounted on one common bar for multiple pocket applications. Each print head can be adjusted independently for exact location desired. In the stationary mode, the printing mat contacts the ink well. Then the air cylinder, synchronized with the Multivac, pushes the pre-inked mat against the material and back-up surface. The code dater prints on absorbent or non- absorbent surfaces. Low-priced sanitary ink cartridges are available in several colors, and can be easily changed. Cross-web Labelers Automatic labeling equipment is available to apply fully printed, die-cut pressure sensitive labels to packages while they are still held captive in the packaging machine (Fig. I). These labelers mount on the Multivac and can apply labels to all of the packages in the rows and tracks of a multiple pocket die configuration. Labels can be applied to the inside or the outside of the top or bottom film webs. Multiple labels per package are possible. Heated Blind Embossing Station Used for embossing code dates, lot numbers, etc., into the bottom film web—usually in the package header area. Without using ink, hot leaf foil or typewriter ribbons, this system uses heat to create a "blind," legible relief by forming an impression into the film web. Unit operates by driving a heated typecarrier with type slugs into the film and backup strip, creating an embossed legend (Fig. J). Photo Registration All top and bottom, pre-printed film webs, with the exception of "random- print" designs, require photo registration to ensure that the printed graphics align perfectly with the cut-off parameters of the package. The registration process is automatically controlled by the use of a photo- scanner head (Fig. K) which "reads" eye spot markings printed on the film. The eye spots are printed in accurate repeats over the entire length of the film roll and exist for the sole purpose of registration. One of two registration systems will be specified depending on the application: 1) Stretch registration which uses a film brake control, or 2) advance control registration, in which registration becomes a function of the drive system.

Packaging — Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com