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Blades Sealed

Pad Printing Solutions: Sealed Ink Cup System vs. Doctor Blade System

Doctor Blade System

A doctor blade system has an open reservoir of ink from which a flood bar draws ink onto a printing plate and a sharp doctor blade wipes the plate clean. With this system the ink is exposed to the air, which enables the solvents to evaporate, slowly changing the ink viscosity. Several machine types make attempts at creating "covered" inkwells but it does not significantly diminish the changes in ink consistency.

Doctor blade systems have been successful and popular where there is short print run (less than 500-1000 pieces), a number of color changes, and experienced machine operators who understand the nuances of ink preparation. These machines are common in plastic housing, golf ball and promotional product marketplace. A significant advantage of the doctor blade system over the sealed ink cup system is that it can easily print long images (for instance on plastic housings like a television, computer monitor, or vacuum cleaner) because there are no major limitations as to how wide a doctor blade of plate can be made.

Sealed Ink Cup System

A sealed ink cup system is essentially and inverted cup that is filled with ink and uses the sharp rim of the cup as a printing plate wiping system. The sealed ink cup system floods and doctors (wipes) a printing plate in the same motion, dramatically limiting the ink exposure to the air, thereby limiting solvent evaporation and ink viscosity changes. As a result, the process becomes much more predictable and manageable so less experienced operators are able to run the equipment more efficiently.

And with recent developments sealed ink cup machines has become capable of long image printing. A slide system, which can be mounted to a machine, sweeps the cup from side to side across the length of the image. It works extremely well for mid-quality images and has been the method of choice by the medical field for catheter printing. This technology was actually developed and patented by the Author and has become adopted as a standard feature on most ink cups machines offered in the market today.

The largest size ink cups for "standard" pad printing machines are generally 135mm or 5" in diameter, which prints about a 4.5" diameter image. Custom ink cups - that cost significantly more than regular ones - can be up to roughly 250mm in diameter (10"), which can print a 9" diameter image on items like play balls, circular saw blades and satellite dishes.

For efficient production it is sensible to use one set of ink cups in immediate production, while the other is removed and cleaned on the side. The disadvantage to this arrangement is that the ink cups can be very expensive, especially when purchased from the machine manufacturers, but there are places to buy ink cups at fair prices if you search.

The pad printing marketplace has become relatively mature over the last decade and the quality of the products available in the marketplace is very high, so regardless of the type of machine - Doctor Blade or Sealed Ink Cup - you are bound to have a highly successful experience with pad-transfer printing.

About the Author

Benjamin Adner is the president of Inkcups Now, has over 18 years experience in the pad printing and screen printing industry, and holds 3 major industry patents. His Mechanical Engineering and MBA degrees are applied daily in his attempt to create new products and find innovative solutions to pad printing and screen printing issues. For more information on pad printing, visit Inkcups Now at http://www.inkcups.com

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B52NP - Emerson - B52NP > Fan Blades $41 21" Blade for 50" fans Blade sets are micro-balanced to within one gram All blades are 6-layer wood veneer blades and are cross-laminated for stability and warp resistance All blades are sealed to resist moistureEmerson offers a complete line of accessory blades in many unique finishes to complement any decor. The B42, B48 and B52 accessory blades are for use with the Apollo, Athenian, Banff, Buckingham, Chateau Royale, Crown, Designer, Designer Remote, Devonshire, Julianne, Vinings, Mariol, Mariol Portico, Monterey, Premium, Raphael, Raphael Tiffany, Spanish Bay, Westfield, Zurich and 52" Northwind models.

B52MP - Emerson - B52MP > Fan Blades $41 21" Blade for 50" fans Blade sets are micro-balanced to within one gram All blades are 6-layer wood veneer blades and are cross-laminated for stability and warp resistance All blades are sealed to resist moistureEmerson offers a complete line of accessory blades in many unique finishes to complement any decor. The B42, B48 and B52 accessory blades are for use with the Apollo, Athenian, Banff, Buckingham, Chateau Royale, Crown, Designer, Designer Remote, Devonshire, Julianne, Vinings, Mariol, Mariol Portico, Monterey, Premium, Raphael, Raphael Tiffany, Spanish Bay, Westfield, Zurich and 52" Northwind models.

ANCO Contour Wiper Blades $18.95 jQuery(document).ready(function() { var sophioWHIParts= new SophioAjaxCatalog.catalogCrumb(); sophioWHIParts.cFormMethod=''get''; sophioWHIParts.lVehicleOnly=true; sophioWHIParts.cDomain='http://catalog.autobarn.net/'; sophioWHIParts.cCustomFormURL='http://www.autobarn.net/sophioitem.html'; sophioWHIParts.setup('1','WHD'); jQuery('#whd-defpage-parts-form').append('');}) The ANCO brand is one of the leaders in replacement wiper blades, refills, washer pumps and wiper arms. From passenger cars, light trucks and SUVs to transit buses, leased trucks and heavy duty fleets, ANCO has the best coverage to supply all types of drivers with the best and safest visibility. The Contour Wiper Blade is the latest technology in premium profile-style wiper blades from; it provides superior blade-to-windshield contact for an optimal viewing area. The exclusive wiper formulation and its unique one-piece design resists corrosion caused by the elements and freezing. This results in a premium option for all season performance. The ANCO Contour Wiper Blade features a one-piece design utilizing an advanced internal flexor and unique aerodynamic spoiler to evenly distribute pressure across the full blade surface for exceptional wiper performance. ANCO Contour Wiper Blades are available as an all-season performance upgrade for vehicles currently equipped with conventional wiper blades, as well as direct replacements on applications utilizing profile-type blades. The Anco Contour Wiper Blades come in two installation systems: KwikConnect: Allows you to upgrade from current, conventional blades. Easiest and most effective connection system in replacement wiper blades. It produces an audible click so you know that installation has been performed correctly.   OE-Direct Fit: Uses flat blade technology that creates the streamline blade profile that meets the new styling features demanded by original equipment (OE) customers.       features: Aerodynamic spoiler Resistant to corrosion, the elements and freezing Natural rubber formulation Internal flexor Completely sealed Mono-Spring that keeps pressure across the entire wiper blade Lowers wind noise Minimizes wind lift      

Blades $1394.99 Jack Vettriano Blades - Limited Edition Framed Print

Sealed $12.93 No Synopsis Available

Sealed Cargo $9.99 Sealed Cargo

Feather Disposable Sterile Surgical Blades, #21, 100/bx $29 Features of the Feather Disposable Sterile Surgical Blades: Superior cutting quality, strength and corrosion resistant characterize these stainless steel, disposable blades. Individually wrapped and sealed in aluminum foil to maintain sterility (gamma irradiation), ensuring long shelf-life. Sterile 25kGy (2.5 Mrad). Blades available in several sizes. All sizes packed 100/bx. Graham-Field has been supplying the healthcare market with one of the broadest selections of high quality healthcare products and services. All of their products have been designed with a single objective - to enhance the quality of life of the people that use their products and their caregivers.Their brands, such as Everest & Jennings and LaBac, Lumex, Labtron, Grafco, Smith & Davis and Simmons-offer the quality and value you've come to trust.

Feather Disposable Sterile Surgical Blades, #22, 100/bx $26.75 Features of the Feather Disposable Sterile Surgical Blades:* Superior cutting quality, strength and corrosion resistant characterize these stainless steel, disposable blades.* Individually wrapped and sealed in aluminum foil to maintain sterility (gamma irradiation), ensuring long shelf-life. Sterile 25kGy (2.5 Mrad).* Blades available in several sizes.* All sizes packed 100/bx.Graham-Field has been supplying the healthcare market with one of the broadest selections of high quality healthcare products and services. All of their products have been designed with a single objective - to enhance the quality of life of the people that use their products and their caregivers.Their brands, such as Everest & Jennings and LaBac, Lumex, Labtron, Grafco, Smith & Davis and Simmons-offer the quality and value you've come to trust.