Author Topic: Goal - wet on wet.  (Read 4006 times)

Offline Stinkhorn Press

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Goal - wet on wet.
« on: January 29, 2013, 02:06:25 PM »
Currently most of our customers are happy enough with our imperfectly printed bulletproof spot color work. Possibly a self-fulfilling prophecy as everyone who isn't happy with them didn't bother to notify us if that was the reason they chose to go elsewhere...

I'm not happy with
A- the quality of the print, our technical ability
B- the fact we can't sell on high-quality/high-knowledge.
C- the time required to flash everything

Mid-range goal - wet on wet printing as often as can be achieved.
I realize this isn't a simple, change one element and it will happen situation.

Where we are now -
Run one manual 6/6. Press is decent, holds registration, holds OC, platens to screen holds parallel. I believe we have it pretty well sorted.
Printer (employee) has been printing for me full time for 1 year, no experience before this press or this shop.
Everything is PFPF (except when one color isn't touching another). Nowhere near one hit whites. We do trap/choke underbases and often make a highlight white if the design calls for it.
I am the artist and the owner.

Our screens are a mix of wood statics and aluminum statics. Half 110, half 125, couple of 86s. We did one round of throwing out about 40 egregiously awful screens a couple of months ago. We do a whole lot of tiny and repeat orders (36 team, 1 and 2 color logos softball league every March, etc) so we have a long screen recycle cycle (about 12 per day enter/exit the cycle, we keep them on screen for a time for re-orders).
We have an older Newman tension meter, true accuracy unknown. The screen tensions vary wildly. We have 12 Newman Rollers I bought off craigslist. Only three of them meshed up (shurloc for ease). No flat good table and no long mag wrench so they are probably not perfectly flat and probably have torque tensions acting on them.

We do spot color with some minor gradient work. We can't expose/hold much better than 33lpi (Accurip on Epson 1400 with waterproof films and AllBlack). Our gradients can't handle much outside the 20/80% range.
Emulsion is Chromaline Glide. Coated glisten style, usually 2/2 with rounded edge of coater. Exposure unit is a bank of tubes. Screen room isn't dehumidified and is cold. Exposure to get near solid step 7 of 21 step guide is around 3 minutes.

It's clearly going to take some work. I'm game.
What's the lowest hanging fruit to start with? What changes, tests, adjustments will yield the best control improvements? What can I ignore for now, what will prevent any improvements until it's addressed?


Offline prozyan

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Re: Goal - wet on wet.
« Reply #1 on: January 29, 2013, 02:14:50 PM »
The first thing you need to do is up your mesh counts.  Bump up to at least 156, then 180, then some 230.  On a manual, you won't have much need to go above 230.  Static aluminum at a minimum, preferably all retens.

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Offline ebscreen

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Re: Goal - wet on wet.
« Reply #2 on: January 29, 2013, 02:16:44 PM »
Higher mesh counts will help with both WOW printing as well as better halftones (both LPI and quality).
I'd start with a handful of 230's.

Ink's are going to play a big factor in this as well. Heavy opaque athletic inks (for top colors) are not going to
print well WOW.

Offline Sbrem

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Re: Goal - wet on wet.
« Reply #3 on: January 29, 2013, 02:56:55 PM »
Coming from the days before flash units were around, I agree with the other folks. Visiting a very good shop once (Mirrior Image in Pawtucket, RI) to look at MHM presses before we bought, Rick Roth told us "If you need more than 2 flashes, you're doing it wrong." And, he was right.

Steve
I made a mistake once; I thought I was wrong about something; I wasn't

Offline Stinkhorn Press

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Re: Goal - wet on wet.
« Reply #4 on: January 29, 2013, 03:53:53 PM »
Retention-able frames, at our number of screens circulating, would be a hefty upgrade. I assume I would need a stretching table to get consistency (and to get them truly flat) as well? That would require air too. And clamp adapters on the press (side arms, 2 manual screws per side). And learning to stretch mesh properly. I'd love Newmans, but I don't know, everything else involved, if we're ready for them at all.

Knowing there will at the very minimum need to be an upgrade in screens, I am leaning towards decent statics in the meantime. Some threads on this forum have suggested that Murakami stretches their own screens, s mesh, that come in a decent tension to start with? Certainly open to other options too - the shurloc system?
Our [current] customers aren't driving this, I fear we need to learn to crawl before we try running.

Most of our ink is One Stroke 480 http://www.onestrokeinks.com/pc_product_detail.asp?key=7DF49AC6464146B4BE20808FA6F7B5DF and a little Hybrid series. Is that a decent ink for wet on wet? I am not very well versed in ink options. We print 70% of our stuff on 50/50 tees and fleece.

Offline ebscreen

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Re: Goal - wet on wet.
« Reply #5 on: January 29, 2013, 04:06:13 PM »
I started with Newman's only, 18x20. Easy to stretch on a decently flat table. A torque
wrench is all I would recommend. Totally not necessary for quality work, personally I just
never wanted to be at the mercy of someone else to stretch screens for me. What if
your friend comes over to show you his new crossbow and the thing goes off and takes
out a huge stack of screens? Unlikely, I know, I just like being self sufficient in every way possible.
Trying out new mesh counts (as seen here) and tensions is also much more feasible with rollers.

With side clamps you don't necessarily need the adapters.


Offline Inkworks

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Re: Goal - wet on wet.
« Reply #6 on: January 29, 2013, 04:07:38 PM »
Statics will do if they are decent tension, you don't need ultra high tension, it's just nice to have.

You'll also want to have a good wet-on-wet ink line, not all inks are suitable. Read-up on some of the various underbasing techniques like using 1/2 tones in the underbase etc.

I'll just throw this out there, but if you're looking at getting away from the bulletproof plastisols, then you may want to skip out on the middle and go all the way to discharge/waterbase. It's more of a learning curve for sure, but in the end you'd be adding more value to the shop..........
Wishin' I was Fishin'

Offline ebscreen

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Re: Goal - wet on wet.
« Reply #7 on: January 29, 2013, 04:11:48 PM »
Oops, forgot the other factors.

Poly blends using full on poly inks are going to be hard to get an underbase that you can print
wet on wet easily.

Yes you can discharge UB poly blends with plastisol on top, but one thing I've noticed with athletic
printing is that the high gloss/heavy hand feel tends to be desired, oddly. Discharge won't
get you there, though it makes printing WOW a cakewalk.

No idea about OneStroke, never used them. Given their name/price I'd wager they aren't going
to be great for WOW. I always liked Union Autoline for this, even manually.

Offline blue moon

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Re: Goal - wet on wet.
« Reply #8 on: January 29, 2013, 11:44:48 PM »
I would say that the best bang for the buck would be to drive up and see what we are doing.  Seeing things in action just makes everything easier to put into perspective.

We still use statics for a lot of our work!

pierre
Yes, we've won our share of awards, and yes, I've tested stuff and read the scientific papers, but ultimately take everything I say with more than just a grain of salt! So if you are looking for trouble, just do as I say or even better, do something I said years ago!

Offline Denis Kolar

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Re: Goal - wet on wet.
« Reply #9 on: January 30, 2013, 06:57:56 AM »
Retention-able frames, at our number of screens circulating, would be a hefty upgrade. I assume I would need a stretching table to get consistency (and to get them truly flat) as well? That would require air too. And clamp adapters on the press (side arms, 2 manual screws per side). And learning to stretch mesh properly. I'd love Newmans, but I don't know, everything else involved, if we're ready for them at all.

I switched last year, I would never go back to statics (I still have a bunch for one-offs)
I built my owns stretcher, stop by to take a look. Maybe on the way back from Pierre :)

Offline ScreenFoo

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Re: Goal - wet on wet.
« Reply #10 on: January 30, 2013, 10:37:41 AM »
If your goal is reasonable wet on wet production, good statics, proper ink, printing  and stencil techniques can get you hundreds of prints without wiping down buildup till you hit at least a couple hundred shirts. 

Not to say you shouldn't get roller frames, by any means, but if you're like us, sub two case orders are 70% of what we do, and well cared for quality statics IMHO give a similar return to well cared for rollers--if used properly.  Don't be a shop that spends their last dollar on retensionable frames only to find out the real reason you're having problems has little to do with equipment.

Definitely check out Pierre's shop if you have a chance.


Offline dave58

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Re: Goal - wet on wet.
« Reply #11 on: January 30, 2013, 11:19:30 AM »
I have lived through the same evolution....wish I had a printer..........still wearing all the hats here.

I think I have only 2 statics that are 110 mesh....and I don't remember using them at all last year. Everything else I have is 158, 196 or 230 mesh statics. Last tear I did buy 6 retensionables  to work with. I will incorporate more of those in as time goes on. Much easier to work with all around.

My press is rather sloppy...so until I get a new one I trap. But you said your press holds registration rather well.....then use that...you shouldn't need to trap very much at all. Wet on wet can be used a lot more often than you think....and that comes with time and confidence. I think you said your printer has one year experience.....yep....been there....flashed everything to death in the beginning.

Lowest fruit on the tree?.....in my opinion experiment, take risks....jump in with both feet. You will have some disaster prints [have screens on hand for reburn and adjust art]. I think it just comes down to time on the press and learning how far you can push the limits...compared to what you do now. If you have any slow times that is a good opportunity to play with some new things.

I guess for me it is a bit easier as I do the artwork as well as the printing....so there is equal knowledge in both areas as what is needed and what will and wont work.
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Offline 3Deep

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Re: Goal - wet on wet.
« Reply #12 on: January 30, 2013, 11:32:11 AM »
If no one mention this using the right inks for wet on wet printing helps also and yeah bump up those mesh counts, but a nice tight 110 or 137 can still print wet on wet if you can get a nice ink cover in one stroke ( stops so much build up).... hey I really dig what blue  moon said cuz I consider him one of the best printers on here  (still use a lot of static frames)

Darryl
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Offline tonypep

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Re: Goal - wet on wet.
« Reply #13 on: January 30, 2013, 12:34:37 PM »
I have statics and rollers (oversize). Selling the rollers as my presses don't have the right clamps and the adapters are worthless. Up on the mezzanine we have a frame stripping and stretch and glue operation. Tension is tension.

Offline jsheridan

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Re: Goal - wet on wet.
« Reply #14 on: January 30, 2013, 01:34:43 PM »
Plenty of good info here but the one factor that really needs to be addressed..

The guy pulling the squeegee has no clue what he's doing and until he learns WHY he's doing what he's doing, all he'll ever do is mash ink into a shirt.

You need him to take the lead on learning how to be a better printer and start reading technical publications. Best place for that is screenweb.com which is the online database for screenprinting magazine.

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