UV-LED油墨在软包装凹版印刷中的应用研究
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摘要
通过制备一种UV-LED环保油墨和适配的UV-LED固化光源,并对凹版印刷机进行改进设计,构建一套采用UV-LED冷光源固化色墨的凹版印刷系统,进行软包装材料的印刷试验。在印速200 m/min、UV-LED波长385 nm、单个色组最低光功率6 kW等工艺条件下,UV-LED油墨在PET(聚对苯二甲酸乙二酯)、OPP(邻苯基苯酚)、CPP(流延聚丙烯)、PE(聚乙烯)等基材上只需0.1 s即可固化,印刷质量达到批量生产要求。无溶剂软包装凹版印刷工艺先进,环保节能,可以取代传统溶剂型印刷,从源头上解决软包装凹印企业的VOCs治理难题,促进产业转型升级。
A kind of UV-LED environmental protection ink and suitable UV-LED curing light source were prepared,and the gravure printing machine was improved and designed. A set of gravure printing system using UVLED cold light source to solidify color ink was constructed,and the printing test of flexible packaging materials was carried out. Under the conditions of printing speed 200 m/min,UV-LED wavelength 385 nm and single color group minimum optical power 6 kW,UV-LED ink could be cured on PET(polyethylene terephthalate),OPP(ophenylphenol),CPP(casting polypropylene),PE(polyethylene)and other substrates in only 0.1 s,and the printing quality could meet the requirements of mass production. Solvent-free flexible packaging gravure printing technology was advanced,environmental protection and energy saving,which could replace traditional solvent-based printing,solving the VOCs governance problems of flexible packaging gravure printing enterprises from the source,and promoting industrial transformation and upgrading.
A kind of UV-LED environmental protection ink and suitable UV-LED curing light source were prepared,and the gravure printing machine was improved and designed. A set of gravure printing system using UVLED cold light source to solidify color ink was constructed,and the printing test of flexible packaging materials was carried out. Under the conditions of printing speed 200 m/min,UV-LED wavelength 385 nm and single color group minimum optical power 6 kW,UV-LED ink could be cured on PET(polyethylene terephthalate),OPP(ophenylphenol),CPP(casting polypropylene),PE(polyethylene)and other substrates in only 0.1 s,and the printing quality could meet the requirements of mass production. Solvent-free flexible packaging gravure printing technology was advanced,environmental protection and energy saving,which could replace traditional solvent-based printing,solving the VOCs governance problems of flexible packaging gravure printing enterprises from the source,and promoting industrial transformation and upgrading.
引文
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[2]魏彬,林仄.UV-LED在光固化领域的应用现况和趋势[J].中国高新技术企业,2017(11):92-93.
[3]皮阳雪,陈显颂,陈景文,等.LED光固化油墨的组分研究及适配光源的选用[J].丝网印刷,2016(1):31-33.
[4]简凯,杨金梁,聂俊.自由基型光引发剂的研究进展[J].涂料技术与文摘,2016,37(4):41-53.
[5]步荣霞,罗世永,刘晓,等.UV-LED喷墨油墨用单体和光引发剂性能的评估[J].包装工程,2018,39(21):86-90.
[6]易青.UV-LED喷墨油墨的研究[D].南京:南京林业大学,2014.
[7]刘晓鹏,陈明,陈贵.节能环保型LED-UV固化油墨研发[J].杭州化工,2015,45(1):18-21.
[8]AROMAA M K,VALLITTU P K.Delayed post-curing stage and oxygen inhibition of free-radical polymerization of dimethacrylate resin[J].Dental Materials,2018,34(9):1247-1252.
[9]易青,王琪,魏先福,等.单体对UV-LED喷墨油墨性能影响的研究[J].包装工程,2014,35(7):127-132.
[10]皮阳雪,陈海生,陈显颂,等.新型环保节能LED光固化油墨及其应用[J].丝网印刷,2018(2):22-25.
[11]包勇.一种凹版印刷的LED四色油墨及其制备方法:CN109181407A[P].2019-01-11.
[12]张蕾.UV-LED固化技术发展趋势[J].电子元件与材料,2015,34(6):99-100.
[13]韩秋漪,李思琪,李明吴,等.高功率密度紫外LED封装模组及其光固化应用[J].照明工程学报,2017,28(1):21-29.
[14]王锐.UV LED技术在印刷领域的应用[J].今日印刷,2013(11):61-62.
[15]褚玉龙,曹从军.UV-LED磁性油墨固化时间影响因索研究[J].包装工程,2018,39(17):71-74.
[16]陈忠雨,江海波,孙秀辉,等.阵列型多波长紫外LED油墨固化系统设计[J].光电工程,2019,46(2):1-6.