Probs with screenprinted logos

General Discussion
1

Been using screenprinted logos for a while now and it’s the first time I’m having probs with them

They are delaming after a few days
I’m laying them under a piece of 4oz
Not to dry and not too wet same as I’ve always done
After about 24 hrs I get a couple of strands showing then 48 hrs later big delam!

Could it be dampness its very cold and wet at the moment!
I’ve just had my logos redone by a local screenprinting shop and I’ve tested there ink under resin which was fine now I’ve got logos done and thanet are doing this!
Any help appreciated!

2

Epoxy or poliester?

3

All poly,
boards are done with uv, no bubbles appearing anywhere else only on logos?

4

If the logos have large areas of solids you should be mixing some catylist in the UV cure.  Are you letting in the sun long enough???  Other than that it would have to be the ink or moisture.  Are you doing this on top of the lam coat or hot coat?

5

On top of lam with catalyst, no uv as logo is black

 

6

Could it be something in the paper? Man that is really a kick in the pants!

7

Been chatting with zeph today and the only thing we can think off is moisture on the paper
Drying them out tonight and will test tommorow

Bit of a shit to get a boards deck nice and flat when 3 logos have delamed on it!

G hopper the paper is what all the logo printers use so can’t be the paper

8

did drying out the logos solve the problem?

9

No they delammed again,
But i noticed that the logos were shiner than the last ones and called the printers and even though I had said I needed matt ones they put some gloss ink in the mix!!

They are printing me a matt one to test today so will update tommorow

10

Most likely the problem is your laminates are not allowing light to cure the resin.  Put a little MEKP in resin under lam and your problem should be fixed.  Try that before you start blaming the screen printer for faulty inks.  Now what kind of ink are they using?  For best results ‘stick’ with enamels.

11

      Howzit Pauluk,I am with grat on this one, I forgot to add catalyst 1 time to the logo resin mix and it delamed and made sure I never forgot to add the catalyst again and never had the problem again so that is the main probem causer. Bottom line is add catalyst to logo resin mix. Aloha,Kokua

12

Hi kokua ang g rat 

Yeah I’ve always added catalyst 

I went back and have tested them all again it’s the ink also got a sample with no gloss ink and that’s fine 

 

Ive spoken to the two printers who do all the logos for the uk and European markets and they agree you can’t put gloss ink on logos!!

 

Ive now bitten the bullet and paid the top company to do my logos can’t be bothered to mess around anymore have too many boards to do at the moment 

 

13

two cents:

 

day before yesterday

I decided that black wouldn’t do it

I needed opaque white as I was 

applying label over dark blue swirlly.

so I got out the rice paper,

 the screen, and the waterbase ink

I wanted to get it done in an hour

so I had to quick dry the screend

labels (logo) on rice paper

I often use waxed paper on cloth

but was concerned about

wax interference with bond

to glass and resin…

 

 

Point being heat I use an Iron

turned up real high and I ironed

from the back of the papre first

then flipped it over and heat dried

on the ink side

there have been times I was worried

about thick ink on the paper and

I sanded the ink with fine sand paper

like 150 grit … never used u’v’  

always use catalyst and resin

thick brushed under

put down label on rice paper

then thick resin over then

glass and carefully hydraulic

out the excess with a flexy

yellow plastic squeegee.

when some thin works well

stick with it new paper new ink

the test time is a bear

do overs are costl yto the sense

of flow and can result in

throwing ya off for a week.

…ambrose…

condolences…

I spent this morning acetone wiping down a 

weird gloss failure.Then I sanded it off before

I built a fire and cooked a great turky on the barbecue

smoked oak with Yam and pineapple.

…

sometimes yiou just gotta walk away

 

the board was due today.

maybe tomorrow…