UV cigarette packet ink quality testing standards

August 28, 2022 Longchang Chemical

UV cigarette packet ink quality testing standards

UV ink without solvents, its components can almost all participate in the reaction, compared to the traditional ink in environmental protection has advanced a big step. However, it can not be said that UV ink is absolutely safe, UV ink raw materials in the production process will remain some harmful substances, such as in the UV resin and monomer production process may have solvent residues, pigment production process may have heavy metal residues. If the subsequent treatment is not complete, these substances will remain in the ink. At present, the detection of harmful substances in UV cigarette packet ink is mainly for organic solvents and heavy metal residues in the ink.

The National Center for Quality Supervision and Inspection of Printing and Decoration Products has researched and promulgated the ink solvent residue limit and its determination method and the ink heavy metal limit and its determination method (QB/T2929-2008). In order to control the residues of organic solvents in strips and box packaging paper, the State Tobacco Monopoly Administration has developed YC/T207-2014 “Determination of Solvent Residues in Cigarette Paper Headspace-Gas Chromatography” and YC263-2008 “Limits of Volatile Organic Compounds in Cigarette Strips and Box Packaging Paper”, two tobacco industry standards for 16 organic compounds such as benzene, toluene, ethanol and styrene. Test methods and limit requirements for 16 organic compounds such as benzene, toluene, ethanol and styrene to make relevant provisions. Benzene is not detectable, the detection of benzene, the batch of test samples for failure; the other 15 organic substances in accordance with the ratio of the substances exceeded (exceedance ratio = detection value / index value – 1) does not exceed 15 cumulative for qualified.

For the heavy metal residues in the ink, cigarette packaging printing enterprises mostly require UV ink manufacturers to provide EU RoHS test reports, including: lead Pb (1000ppm), cadmium Cd (100ppm), mercury Hg (1000ppm), hexavalent chromium Cr6+ (1000ppm), polybrominated diphenyl ethers PBDE (1000ppm), polybrominated biphenyls PBB ( 1000ppm). In addition, four new toxic and hazardous substances are added: Dibutyl phthalate DEHP (1000ppm), Butyl phthalate BBP (1000ppm), Dibutyl phthalate DBP (1000ppm), Diisobutyl phthalate DIBP (1000ppm).

Photoinitiators, as an important part of UV inks, also produce volatile organic compounds during the light curing process. Studies have shown that photoinitiator 184 will produce cyclohexanone and other by-products during the curing process, and photoinitiator 1173 will produce trace acetone and other by-products during the curing process. When the amount of photoinitiator added to UV ink increases, the amount of byproducts produced increases. The General Administration of Tobacco issued YQ/T 31-2013 “Determination of photoinitiators in cigarette sticks and box packaging paper by gas chromatography-mass spectrometry”, which stipulates the determination methods and limit values of 18 photoinitiators in cigarette packaging ink.

UV Photoinitiator Same series products

Product name CAS NO. Chemical name
Sinocure® TPO 75980-60-8 Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
Sinocure® TPO-L 84434-11-7 Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate
Sinocure® 819/920 162881-26-7 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Sinocure® 819 DW 162881-26-7 Irgacure 819 DW
Sinocure® ITX 5495-84-1 2-Isopropylthioxanthone
Sinocure® DETX 82799-44-8 2,4-Diethyl-9H-thioxanthen-9-one
Sinocure® BDK/651 24650-42-8 2,2-Dimethoxy-2-phenylacetophenone
Sinocure® 907 71868-10-5 2-Methyl-4′-(methylthio)-2-morpholinopropiophenone
Sinocure® 184 947-19-3 1-Hydroxycyclohexyl phenyl ketone
Sinocure® MBF 15206-55-0 Methyl benzoylformate
Sinocure® 150 163702-01-0 Benzene, (1-methylethenyl)-, homopolymer,ar-(2-hydroxy-2-methyl-1-oxopropyl) derivs
Sinocure® 160 71868-15-0 Difunctional alpha hydroxy ketone
Sinocure® 1173 7473-98-5 2-Hydroxy-2-methylpropiophenone
Sinocure® EMK 90-93-7 4,4′-Bis(diethylamino) benzophenone
Sinocure® PBZ 2128-93-0 4-Benzoylbiphenyl
Sinocure® OMBB/MBB 606-28-0 Methyl 2-benzoylbenzoate
Sinocure® BP 119-61-9 Benzophenone
Sinocure® 754 211510-16-6 Benzeneacetic acid, alpha-oxo-, Oxydi-2,1-ethanediyl ester
Sinocure® CBP 134-85-0 4-Chlorobenzophenone
Sinocure® MBP 134-84-9 4-Methylbenzophenone
Sinocure® EHA 21245-02-3 2-Ethylhexyl 4-dimethylaminobenzoate
Sinocure® DMB 2208-05-1 2-(Dimethylamino)ethyl benzoate
Sinocure® EDB 10287-53-3 Ethyl 4-dimethylaminobenzoate
Sinocure® 250 344562-80-7 (4-Methylphenyl) [4-(2-methylpropyl)phenyl] iodoniumhexafluorophosphate
Sinocure® 369 119313-12-1 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone
Sinocure® 379 119344-86-4 1-Butanone, 2-(dimethylamino)-2-(4-methylphenyl)methyl-1-4-(4-morpholinyl)phenyl-
Sinocure® 938 61358-25-6 Bis(4-tert-butylphenyl)iodonium hexafluorophosphate
Sinocure® 6992 MX 75482-18-7 & 74227-35-3 Cationic Photoinitiator UVI-6992
Sinocure® 6992 68156-13-8 Diphenyl(4-phenylthio)phenylsufonium hexafluorophosphate
Sinocure® 6993-S 71449-78-0 & 89452-37-9 Mixed type triarylsulfonium hexafluoroantimonate salts
Sinocure® 6993-P 71449-78-0 4-Thiophenyl phenyl diphenyl sulfonium hexafluoroantimonate
Sinocure® 1206 Photoinitiator APi-1206

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