The copy is created as a result of writing pressure which causes a colour reaction in the interaction between the two coatings on the reverse and front sides of the paper.

The coating layer is composed of microcapsules that contain dissolved, colourless colour formers. Pressure caused by writing bursts the microcapsules.  To produce a form, at least two sheet types (CB and CF) are required.  For form sets with more than two sheets another sheet grade (CFB) is required as a middle sheet.

 

At a glance
  • CB (coated back) – this sheet is the top sheet and therefore original of the form set.  As a result of writing pressure, the microcapsules in the coating on the reverse side of the sheet are destroyed and the colour formers contained in them are released.  This sheet grade is therefore pressure sensitive and requires correct handling.
  • CFB (coated front and back) – this sheet serves as the middle or intermediate sheet in the form set and is coated on the front side with an absorbent receiving coating.  During writing the released colour formers are absorbed and create an immediate colour reaction on the front of the sheet.  The reverse side is coated with the same coating as the CB sheet.  This sheet grade is therefore pressure sensitive and requires correct handling.
  • CF (coated front) – this is the bottom sheet of the form set.  The front side is coated with the same receiving coating as the CFB sheet.  This sheet grade is not pressure sensitive and can be handled as normal coated paper.
Functioning Principle of  Carbonless Papers
Functioning Principle of Carbonless Papers

Suitable dot matrix printers for our giroform carbonless papers can be found here, for example.

 

Giroform stands for top quality and a practical, wide range of carbonless papers. Giroform papers have good running properties, excellent copy and exact line sharpness.  Printability is superb. Giroform papers are available in white and up to five different tints in reels, sheets, and pre-collated sets.

The appropriate accessories, such as fanapart glue, test spray or test pens can be supplied on request.  The copyability is guaranteed up to 5 years, and the copy to last up to 10 years.

 

  • Giroform CLASSIC – elemental chlorine free, for all kinds of multipart sets, e.g. logistics documents

    • Giroform ULTRA – with a bright white uncoated paper surface for demanding documents, such as business forms
    • Giroform DEKA - self contained for use with plain paper top sheet for special applications such as credit card vouchers or bank transfer forms
    • Giroform OCR - as document reading paper for machine detectable data in electronic plaintext readers
    • Giroform SECURITY - with special security dyes for forgery-proof forms

      

  • Giroform DIGITAL ONEforALL - for the digital production of personalized, individual forms and documents on all common digital toner printing systems.

 

Further information and downloads regarding our carbonless papers can be found here.

GIROFORM CLASSIC

Carbonless paper for all types of form sets such as self-separating sets and quick release sets. Available in a premium version with a high white surface (ULTRA), for use with a plain paper top sheet for special applications such as credit card vouchers (DEKA), with a bright white surface for stable machine-readable data (OCR) and with special security dyes to prevent forgery (SECURITY).

GIROFORM DIGITAL ONEforALL

Carbonless paper for the digital production of personalised and individualised documents and forms. Suitable for all common digital toner printing systems, b/w copiers and business solutions printing systems. Available as CB, CFB and CF in up to 6 colours, in reels, sheets and precollated sets. Approved by HP Indigo.

Further information and downloads regarding our carbonless papers can be found here.