Coloration of Polyester Fibers for Securities Protection from Counterfeit

V.A. Goldade; N.V. Kuzmenkova; V.E. Sytsko

doi:10.6000/1929-5995.2015.04.01.2

Authors

V.A. Goldade V.A. Belyi Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Belarus
N.V. Kuzmenkova Belarusian Trade and Economics University of Consumer Cooperatives, Gomel, Belarus
V.E. Sytsko Belarusian Trade and Economics University of Consumer Cooperatives, Gomel, Belarus

DOI:

https://doi.org/10.6000/1929-5995.2015.04.01.2

Keywords:

Chemical fibers, modification, crazing, protection, colorants, luminescence.

Abstract

The results of modifying polyester fibers with luminescent colorants by crazing mechanism have been given. By means of REM and AFM stages of crazes initiation, their transformation into fibrillar structure of fiber and redistribution of modifiers incorporated into crazes in the surface layer of fiber have been revealed. Techniques of concentrating luminescent colorants on local sections of fiber with alternation of unprocessed segments and segments containing target additives have been described. Polyester fibers with alternating by length sections of luminescent division of colors have been obtained. It was shown that effective fiber coloration takes place when the drawing out degree ε* is between 2 and 3. Fibers modified by Oxazine and Rhodamine colorants are characterized by highest intensity of luminescence in UV radiation. The conclusion has been made that technology of modifying chemical fibers by cazing mechanism allowing implementing measured incorporation of target additives on local sections of fiber satisfy in the optimal way the protection criteria of paper filled with such fibers from counterfeiting.

References

Belousov AG. Comprehensive criminalistic investigation of securities and banknotes protection facilities. Moscow: Economical Center of Ministry of Internal Affairs of Russia 2001.

Kislukhin C, Korochkin L. Protection of official papers, forms and documents from forgery in the Republic of Belarus. Bankauski vesnik (Belarus) 2002; 6: 6-40.

Korochkin L, Gorelenko А. Problems of protection of banknotes and securities from forgery, Bankauski vesnik (Belarus) 2002; 9: 42-5.

Konshin АА. Protection of printing production from falsification. Moscow: Sinus Ltd. Co 1999.

Perepyolkin КE. Principles and methods of modifying fibers and fiber materials. Chem Fibers (Russia) 2005; 2: 37-49.

Razd’akonova GI, Surovkin VF, inventors; Technical Carbon Engineering and Design Institute of Siberian Division of Russian Academy of Sciences, assignee. Composition for chemical fibers dyeing in the main. Russian patent RU 2130097 1999.

Nagorny VS, Levchenko YuА, inventors; Nagorny VS, Levchenko YuА, assignee. Process of Fibers Dyeing. Russian patent RU 2144103 2000.

Kim D-K, Park Y-H, inventors; Korea Security Printing and Minting Co., assignee. Process of Manufacturing Fibers protected from Falsification. Russian patent RU 2190716 2002.

Peisakhovich АА, Pavutnitski VV. Vapor-phase method of dyeing synthetic sewing threads and yarns. Textile Industry (Russia) 2010; 4: 34-6.

Goldade VA, Pinchuk LS, Vinidiktova NS. Modification of polyester fibers by bactericides using crazing mechanism. Int Polym Proc 2010; 25: 199-204. http://dx.doi.org/10.3139/217.2321 DOI: https://doi.org/10.3139/217.2321

Kramer EJ, Berger LL. Fundamental processes of craze growth and fracture. Adv Polym Sci 1990; 91/92: 61-8. http://dx.doi.org/10.1007/BFb0018018 DOI: https://doi.org/10.1007/BFb0018018

Volynski АL. Rehbinder’s effect in polymers. Priroda (Russia) 2006; 11: 11-8.

Volynski АL, Bakeev NF. Structural self-organization of amorphous polymers. Мoscow: Physmatlit 2005.

Volynski АL, Mikushev AE, Jarysheva LM, Bakeev NF. Crazing in liquid media – a basis for generation unique method of modifying polymers. Russ Chem J 2005; 49(6): 118-28.

Vinidictova NS, Pinchuk LS, Goldade VA, Novikov VP. Application of polymer crazing for creation antimicrobial polyester fibers. Reports of Belarus NAS 2009; 53 (5): 108-12.

Andronova АP, Poprjadukhina SI, Egorov IA, Aljoshicheva NB. Dyeing of polyester fibers by using crazing method. Chem Fibers (Russia) 2011; 1: 71-4. DOI: https://doi.org/10.1007/s10692-011-9312-5

Pinchuk LS, Kuzmenkova NV, Goldade VA, et al, inventors; V.A. Belyi Metal-Polymer Research Inst of NAS of Belarus, assignee. Arrangement for discontinuous coloration of chemical fibers. Belarus patent BY 18364 2014.