Method of manufacturing conductive pattern
一种导电图案、金属图案的技术，应用在制备导电图案领域，能够解决印刷图案清晰度和电导率负面影响、基材变形、NIR烧结效率降低等问题
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[0223] Preparation of Metal Nanoparticle Dispersions
[0224] The preparation of metal nanoparticle dispersions (e.g., silver inkjet inks) typically involves mixing a liquid carrier, preferably a dispersion stabilizing compound, and optionally additives by using homogenization techniques (e.g., stirring, high shear mixing, sonication, or combinations thereof). added to the metal nanoparticles.
[0225] Silver nanoparticles for making silver inkjet inks are usually pastes or highly concentrated dispersions of silver nanoparticles.
[0226] A preferred method for the preparation of metal nanoparticles is disclosed in EP-A 2671927 .
[0227] It has been observed that better results are obtained when all or part of the dispersion stabilizing compound is added during the preparation process of the silver nanoparticles. Due to their adsorption onto the silver nanoparticles, dispersion stabilizing compounds added during the preparation of the silver nanoparticles will at least pa...
Embodiment 1
[0326] Five different substrates S-01 to S-05 were prepared by printing five different receiver layers according to Table 4 on Autotex Velvet 150 polyester with an Anapurna M2540i FB (BULB) printer (from Agfa).
[0327] Using a Konica Minolta 30 pL print head (KM1024iLHE) (E fab = 14 µm, E shift = 35 µm) on a Ceraprinter (from MGI ceradrop), silver squares (2 cm × 2 cm) were printed on the receiver layer of each substrate with silver inkjet ink AgInk-01.
[0328] All samples were sintered by using Adphos NIR lamps (100% power, but at different NIR sintering speeds) according to Table 6.
[0329] The conductivity and adhesion of the silver patterns are shown in Table 7.
[0330] Table 6
[0331] Substrate receiving layer S-01 G5 Color (K=75%, C=M=Y=75%) S-02 G5 Color (Y =100%) S-03 G5 Color (M =100%) S-04 G5 Color (C =100%) S-05 G4 white
[0332] Table 7
[0333] example Substrate NIR sintering speed (mm / s) Sh...
Embodiment 2
[0338] Substrates S-06 to S-14 were prepared by printing the white ink according to Table 8 on Autotex Velvet 150 polyester.
[0339] Using the printing conditions according to Table 8, S-06 to S-11 were prepared by printing white ink on one side of the polyester with a single-pass Microcraft printer.
[0340] S-12 and S-13 were prepared by inkjet printing white ink on one side of the polyester using an Anapurna M2540i FB (BULB) printer (from Agfa) in multi-pass mode.
[0341] S-14 was prepared by drawing down white ink on one side of the polyester as above.
[0342] Using a Konica Minolta 30 pL printhead (KM1024iLHE) (E fab = 14 µm, E shift =35 µm) on a Ceraprinter (from MGI ceradrop), silver squares (2 cm × 2 cm) were printed on the receiving layer of each substrate with silver inkjet ink AgInk-01, and a NIR lamp (100% power, 10 mm / s platform speed) for sintering.
[0343] Table 8
[0344] Substrate white ink printing conditions S-06 Wh04 720×72...
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