Discuss the different plastisol screen printing inks and curing methods on the market. Share tips on getting the best results with the different ink manufacturers.
I've got 500 tote bags to print, they're a non-woven PP tote bag with almost a waffle pattern to the fabric.
After the test print was done I found that the ink flakes off of the indents on the fabric.
I was using the Poly all ink from Nazdar and was just letting it air dry afterwards (no flashing). I used a 230 screen, which they said was the least number of threads recommended for the Poly all inks. Could the ink possibly have been too thin? What mesh count should be used on these?
Could someone please let me know which inks would work on these?
Thank you so much if you have any suggestions,
I really need to be able to print these things.
I have several customers using International Coatings 900 Series Nylon Plastisol with a low cure additive to reduce the cure temperature. 900 Series is a 2 part catalized nylon ink.
i think the pp stands for polyproplactic.....lol or some thing like that....try some vinyl ink....let me know what you do...a lady i know was wanting to try something like that...........
PP is polypropylene aka polypropene.
I'm using the poly all from nazdar mixed with the nb80 adhesion promotor and it's working well.
They hadn't heard of anyone using nb80 with poly all ink but it's working!
I have also heard from quite a few people that plastisol works well on them too.
Don't know if you are still looking an ink to work on your bags.
Try QCM Inks Rubber Ink. It is a waterbased ink that is very opaque but has the hand of plastisol.
They are located in Kent, Washington. Call 800-321-0170 for the nearest distributor.
I also used International Coating 900 series plastisol with NB80 and cure at 360 degrees through the conveyor dryer and it seems to adhere just fine even though it was designed for nylon, it seems fine on woven polypropylene bags.
I used my regular plastsol ink and used a flash dryer for 3 sets on 5-8 seconds under the dryer and 30 seconds away, it seemed to work fine figuring they probably wont be washed. i did a small trial run which was more like "a lesson in polypropylene screen printing"
Just to give you a heads up. i'm just a punk rock kid screening in my garage so i'm not a pro. just a dude slowly learning the business on my own.