Quick answer: For practical formulation work, photoinitiator screening starts with the light source and film build, then checks yellowing, adhesion, and cure completeness under real production conditions.
UV 凹版油墨和参考配方
凹版印刷油墨的粘度很小，通常在 20-300mPa-s 之间，以确保油墨具有良好的转移性能，获得出色的印刷质量。凹版印刷的应用范围很广，如纸张、薄膜、铝箔等，印刷速度也很快（一般为 100-300m/min）。由于凹印油墨墨层较厚，油墨中颜料的含量相对较低，一般在 6% 到 9% 之间。
UV gravure printing ink is close to UV flexo printing ink in formulation design, using low viscosity, fast-curing oligomers and active diluents. In practice, 光引发剂 819 is often reviewed for through-cure, while ACMO 单体 helps balance reactivity, flexibility, and viscosity; see section 3.5 UV flexo printing ink in Table 3-38, Table 3-39 and Table 3-4, and the selection of photoinitiators in “3.4 UV Offset Printing Ink”.
(1) UV 凹版油墨参考配方
聚酯四丙烯酸酯 (EB657) 30.0
苯乙烯-马来酸酐共聚物 (SMA1440F) 10.0
(EO)4(PET)4A (SR494) 17.0
819 4.9
蓝色颜料（LGLP） 5.0
滑石粉（D2002） 20.1
巴西棕榈蜡 3.0
表面活性剂 4.0
磺化蓖麻油 2.0
癸二酸二丁酯 3.0
紫外线稳定剂 1.0
(2) UV 红色凹印油墨参考配方
六功能性 PUA 3
Difunctionality PEA 5
DTMPTA 18
PETA 30
丙烯酰吗啉 ACMO 10
NPGDA 12
聚合抑制剂 (510) 0.1
1173 4
369 2.5
聚乙烯蜡 1.5
疏水性气相二氧化硅 1
颜料（来苏红） 12
无硅酮流平剂 0.4
无硅消泡剂 0.5
(3) UV 黄凹版印刷油墨参考配方
六功能 PUA 4
Difunctionality PEA 5
DTMPTA 25
PETA 26
丙烯酰吗啉 ACMO 10
NPGDA 12
聚合抑制剂 (510) 0.1
1173 4
369 2
聚乙烯蜡 1
疏水性气相法二氧化硅 1
颜料（联苯胺黄 GR） 9
无硅酮流平剂 0.4
无硅消泡剂 0.5
(4) UV 蓝色凹印油墨参考配方
六功能性 PUA 5
Difunctionality PEA 3
DTMPTA 30
PETA 18
丙烯酰吗啉 ACMO 14
NPGDA 8
聚合抑制剂 (510) 0.1
1173 5
369 3
聚乙烯蜡 1
疏水性气相法二氧化硅 1
颜料（酞菁蓝 BX） 11
无硅酮流平剂 0.4
无硅消泡剂 0.5
(5) UV 凹版增亮油参考配方
聚氨酯双丙烯酸酯 38.11
己二醇二丙烯酸酯 27.64
Gasil EBC（商品名） 8.59
二苯甲酮 2.83
N 甲基二乙醇胺 2.83
上述 UV 凹版光油配方常用于家具等木纹纸的上光。
A practical selection route for photoinitiator-related projects
When technical buyers or formulators screen photoinitiators, the most useful decision frame is usually cure quality plus application fit: which package cures reliably, keeps appearance acceptable, and still works under the lamp, film thickness, and substrate conditions of the actual process.
- Match the package to the lamp first: mercury lamps, UV LEDs, and visible-light systems can rank the same photoinitiators very differently.
- Check depth cure and surface cure separately: a film that feels dry on top can still be weak underneath.
- Balance yellowing with reactivity: the strongest deep-cure route is not always the best commercial choice if color or migration risk becomes unacceptable.
- Use the final formula as the benchmark: pigment load, monomer package, and film thickness can all change the apparent ranking of the same initiator.
Recommended product references
- CHLUMINIT 819: Useful when a formulation needs stronger absorption and deeper cure support.
- CHLUMINIT 1173: A practical comparison point for classic short-wave UV initiation.
- CHLUMINIT BP: A practical type-II benchmark when benzophenone chemistry is under review.
- CHLUMICRYL TMPTA: A standard reactive monomer benchmark when stronger crosslink density is required.
FAQ for buyers and formulators
Why are blended photoinitiator packages so common?
Because one product may control yellowing or lamp fit well while another improves cure depth or line-speed performance, so the full package is often stronger than any single grade.
Should incomplete cure always be solved by adding more initiator?
Not automatically. The real limitation may be the lamp, film thickness, pigment shading, or the rest of the reactive system rather than simple under-dosage.