matsui white discharge

[Stinkhorn Press]

We run maybe 1 discharge run a month. We've been on the Matsui system for years, fairly comfortable with it.

We have done very little pure white discharge, and it's been a long time AND I've read some things on here that many people DON'T use the proscribed mix to get a good white.

What is you discharge white formulation?

[Colin]

Add penetrant, maybe open time extender and drive it into the garment.

Done.

Not all whites are created equal.

[Maff]

We use Matsui Super 75, which is a premix of 75% white discharge and 25% clear discharge base. We add 5% retarder and usually at most 6% activator depending on the shirt color. We cure for 3min.

[ZooCity]

Depends on the White.  CCI D-White we drop in penetrant, softener.  Rutland's White Plus needs nothing.   

We use retarder here in all wb/dc/hsa inks due to the climate and the firepower we have in the dryer but that's situational.

[woodrow]

We've used Matsui's Super 75 and HM discharge whites...Super 75 is not a good white for under basing and it may be because I didn't mix it with discharge base. Top colors washed off! It does an excellent job as a 2ND white...The HM discharge white at 70% and bright discharge base at 30% did a nice job even on a direct dye garment which I was surprised and happy that it worked out...It's a little thin but if your doing some finer 1/2 tones it does get good penetration into the garment without locking up. Under base printed with 160 on this job as well...

[tonypep]

Guess it bears repeating that pure DC whites out of the bucket are not intended to be used as underbases. High solids=poor adhesion.  Long ago a few creative thinkers came up with a DC base to white ratio formula that works. Some ink manufacturers caught on and make/market a DC/UB ink but either make it yourself or buy it thats the way to go