Banknote papers

3 Laminate Papers Drcor Paper, Pre-impr nated Foils 

Pre-impregnated foils are used where the surface requirements for resistance and closedness do not require more expensive high-density laminates. The impregnation will be made on the paper machine, using a modified size press. Typical resins for this application are UF (urea formaldehyde) or MF (melamine formaldehyde) resins vdth a very low content of free formaldehyde. To achieve good flexibility and printability of these foils, additional polymer dispersions (e. g. styrene acrylates) are used. 

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The proposed applications include the identification of banknote paper, security paper, bank cards, art objects, or even bar codes. The marks can be invisible or hidden. Related patents are mentioned to describe the state of the art, one of which also uses radical-ion organic conductors [73]. 

Koch P. 1995. Occupational contact dermatitis from colophony and formaldehyde in banknote paper. Contact Dermatitis 32 371-372. 

Another old fashioned well proven sheet forming technology which is found in specialty paper production only is the cylinder mould former (Fig. 6.87). This sheet forming technology is still used for the production of cotton based banknote paper. The paper production on a cylinder mould former enables the application of three key security features ... 

Fig. 6.87 Cylinder mold forming technology for banknote paper production (source Voith).

Specialty papers, archival documents repairing, more durable banknotes, diapers, napkins... 

Paper Products/Cellulose The analysis of stable isotope values in cellulose samples can be potentially used to determine the origin of such samples, for example, counterfeit banknotes (Ehleringer as cited by Phillips et al. [23]). 

Heroin, amphetamines, ketamine CE-UV DLLME Chloroform (OTganic extractant) and isopropanol (dispersive solvent) 0.05-0.20 pg/L Banknot, kraft paper, silver paper samples [135]... 

These security features together with more than a 200 years old tradition and know-how make the cyhnder mould former and cotton-based paper stiU the best choice for banknotes. 

Security, banknote, and archival papers are wood-free and/or ragcolor printing and can be made resistant to forgery, e. g., by means of a watermark. Basis weights range from 50 to 80 g m . ... 

Ghichikov let Sobakievich take the notes. Approaching the table and putting the fingers of his left hand over them, he then scribbled with his other hand on a bit of paper a statement to the effect that he had duly received an advance of twenty-five roubles in banknotes for the sale of the souls. Having finished writing this, he examined the banknotes once more. 

Banknote Bank and in charge of the issuing of ail government papers and banknotes. 

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