Label press configurations and ancillary equipment

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This article examines the main types of printing equipment used for the production of labels. In particular it will identify the different types of press configurations used in the sector, whilst highlighting some of their key benefits. 

There is a wide range of ancillary equipment and processes that are fundamental to the successful production of labels and that deliver significant additional benefits. 

The aim here is to provide a valuable insight into all of these whilst at the same time clearly explaining the terminology used. 

TYPES OF PRINTING PRESS

There are a number of different press configurations used in the label industry. Most self-adhesive labels are supplied in the reel and are therefore produced on a reel-fed press. A smaller quantity of self-adhesive labels are manufactured in sheet form and these are produced either on a sheet-fed press or on a reel-fed press and then subsequently cut to the correct sheet size from the reel. (See Figure 2.1).

Figure 2.1 - Typical sheet-fed and reel fed configurations used for label manufacture. Source- 4impr

Figure 2.1 - Typical sheet-fed and reel fed configurations used for label manufacture. Source- 4impression

Reel supplied self-adhesive labels are printed, embellished and converted on a reel fed press (also known as a web-fed press) and produced as an in-line operation.

There are a number of different press configurations used in the manufacture of self-adhesive labels and this article explores some of the most popular ones.

Press configurations are determined by a number of considerations:-

  • The type of printing processes required.
  • The type of substrate to be printed and converted (paper or filmic)
  • The range and weight of the substrate to be printed and converted
  • The substrate characteristics
  • The factory space requirement
  • The capital cost
  • The manning requirement
  • Type of label product to be manufactured (multi-layer, printed adhesive etc.)

The majority of web-fed label presses, regardless of configuration, would be equipped with all or some of the following pieces of ancillary equipment.

  1. In-feed reel stand or multiple stands - Flying splice unit
  2. Web edge guidance unit
  3. Web tension control
  4. Corona discharge unit
  5. Web cleaning unit
  6. Static control unit
  7. Print units  
  8. Inter-deck drying units
  9. Die-cutting unit or units
  10. Register control system
  11. Sheeting unit
  12. Matrix removal unit
  13. Slitting unit
  14. Outfeed rewind unit
  15. Outfeed ‘turret’ auto rewind unit
  16. Web turner bars

Each of these ancillary items are explained in detail later here.

Figure 2.2 Shows a typical layout of a modern reel-fed press and the location and position of the ancillary equipment used (highlighted in purple). 

Figure 2.2 - Positioning of ancillary units on web-fed press

Figure 2.2 - Positioning of ancillary units on web-fed press

John Morton

ABOUT THE AUTHOR

John has hands-on experience of all the major printing processes and has held operational and technical development roles at director level in the packaging sector. A qualified printer, John’s career spans magazine production, commercial print, packaging and label production.

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Robert Shimmin

ABOUT THE AUTHOR

Robert has held senior marketing and business development positions in the print, packaging and label sector spanning more than 20 years.  He is a regular contributor of articles to the print and packaging trade press and has supported initiatives that seek to build awareness of the latest resear

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