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screen printing => Ink and Chemicals => Topic started by: mooseman on June 09, 2016, 09:34:59 AM
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Started using this product about 3 months ago. First bucket worked great, bought 2 more then it started giving us issues. Exposure time is up even after step wedge test and it has become a bitch to reclaim even at underexposure.
It seems to leave a ghost outline around the design that simply will not reclaim. this is not ink it is emulsion.
We use Franmar stripeedoo which we have had no issues with on 3 or 4 other brands of emulsion but this Kiwo (blue) stuff is not playing nice?
anyone have any experience?
mooseman
The new KIWO POLYCOL® MULTI-TEX
is a high solids, fast exposing, pre-sensitized ‘pure photo-polymer’ SBQ emulsion specially formulated for use with most all of the newest textile inks including plastisol, water-based, and discharge systems. POLYCOL® MULTI-TEX does not ‘lock in’ the emulsion after being treated with cleaning solvents, making reclaiming easier.
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I had the same problem with the red. Would not reclaim easily. I asked my supplier and of course they said I was the only one in the free world to have a problem with it. I finally solved the issue by going back to Ulano Orange.
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Have been using Multi Tex for almost a year now. Zero problems. Under exposure of any emulsion may case a multitude of problems. Too much moisture content prior to exposure is another no go. Your chemicals may be causing "lock-in" with this particular PP emulsion. In my experience PP emulsions don't like certain types of screen/press wash chemistry.
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Have been using Multi Tex for almost a year now. Zero problems. Under exposure of any emulsion may case a multitude of problems. Too much moisture content prior to exposure is another no go. Your chemicals may be causing "lock-in" with this particular PP emulsion. In my experience PP emulsions don't like certain types of screen/press wash chemistry.
Same. This ^^
Murphy
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thanks all for the replies.
have been using Ulano QTX with success and Murakami BLU with same success but the Multi Tex just isn't as easy to use sounds like it is a bit more fussy than other types so I guess we will go back to what works.
BTW tried it because it is less $ than QTX and closer than my supply of BLU.
Thanks again for the info.
mooseman
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We have been using QTL for years and is virtually like QTX, but less expensive.
Switched because the only difference we saw after testing was price.
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We have been using QTL for years and is virtually like QTX, but less expensive.
Switched because the only difference we saw after testing was price.
thanks Gary I will give, (Ulano QLT) a try @ $30.00 / gal is a nice savings.
Thanks again
mooseman
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Cant go wrong with SAATI PHU. We have been on it for more that a yer now and the stuff works great. Especially with discharge. No diazo and no hardener needed. Expose it correctly and let it have an hour in the sun and there has been no breakdown even after 5k pcs of discharge.
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Cant go wrong with SAATI PHU. We have been on it for more that a yer now and the stuff works great. Especially with discharge. No diazo and no hardener needed. Expose it correctly and let it have an hour in the sun and there has been no breakdown even after 5k pcs of discharge.
can stress this enough. We use the PHU2, which is a slower exposing version, but still crazy fast. I'd say the PHU is on the same level as the 1400, but we could never get the 1400 to work.
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What issues did you have with the 1400 Eric? It has been super easy and bulletbroof for me, even with ghetto equipment. How fast is the PHU exposure?
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I also had issues with the SP1400... breaking down if EOM was too high... brittleness in the dry winter (fixed with SP1400-W tho)...
On our starlight:
SP1400 - 60 seconds for a 150/48
PHU with Diazo = 30 seconds for a 150/48
PHU2 = 22 seconds for a 150/48
PHU was too damn fast for us to use without adding Diazo11 to it... literally 3 seconds on the starlight with a 225/40.
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How well does it hold detail?
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75lpi halftone on a 225/40 - PHU2, approx 17% EOM, Imaged with 'rocket launcher i-image', exposed with starlight.
printed on sportsman with 70/90/70 duro squeegee, 3/16" off contact, 10degree squeegee angle, 35psi, soft flood, wilflex epic matte black ink, 10th print.
(http://www.oaknet.com/gallery/var/resizes/Screen-Printing/R%26D/20151231_115645.jpg?m=1453426321)
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Looks great, jvanick can you please post the test graphics?
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Looks freak, jvanick can you please post the test graphics?
it is Dan Campbells test file... I attached it here. Dan -- I hope that was ok.
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CCI has an emulsion called UHV that comes in both Red and Blue. The UHV has slightly better resolution than the PHU and will outperform the PHU for less. Just make sure you process the UHV the same way by adding diazo (8 grams per gallon) and post exposing in sun or with exposure unit for extended waterbase and discharge runs.
In regards to the Multi-Tex were you using LED exposure unit ?