![]() ![]() Plugging by particles or dry ink ? What is the stability of your ink regarding drying ? contaminant ? dust ?Ĥ. design of tubing : is there low point ( stagnating deposits) or high points (sky of gas) ? This could leead to plug flow : i.e. Could be also in equilibrium with a light plastic bag containing nitrogen at ambient pressure (plastic bag not fully inflated) to avoid contamination.Ģ. Is the ink viscous ? In that case it would be more difficult to equilibrate pressure at the top of the bottle and outside (possibly via a neutral gas to avoid contamination and drying). I do not believe that atmospheric pressure is so critical. Combined variation of ink level and internal pressure on the surface of the ink : Is the bottle of ink puncture at high point to equilibrate pressure with atmosphere ? If not, it may request a connection to the machine with a plug and dual piping one from low point to the machine for ink and the other one to equilibrate pressure on ink surface with outside pressure. No solutions have presented themselves, so that is why I turn to y'all.Īny suggestions would be greatly appreciated.ġ. We can't keep messing with the height of the rack. It seems that the barometric pressure, which changes frequently, has a GREAT bearing on how much pressure is inside the bottles to push the ink through the lines. They've been adjusted to fractions of an inch, but finding the right spot is like finding a needle in a stack of needles. A lot of it has to do with the height of the bottles on the rack. We are running into problems because the heads aren't getting enough pressure from the ink at times. This consists of a rack with the four or six ink bottles turned upside down and fed through clear, food-grade tubing approximately 1/4" to the printhead. When you print as much as we do, however, you do what we did and switch to a bulk-feed system. Normally, each color has a "cartridge" that goes into the back of the printer and holds approximately 1 liter of ink. We have two four-color printers and two six-color printers, all of which are no more than 2 - 3 years old. Newer, six-color printers use CMYK and light cyan and light magenta. Traditional printers have four colors: cyan, magenta, yellow, and black (CMYK). Our paper, inks, and (especially) printers are VERY finicky in terms of behavior. The goods are run right off the roll through the press, whereas we have to pre-cut them. The only difference with something like swimming is that the manufacturers of those garments use "floods", stacks of paper that are die-cut all the same. You may have seen the results of this process on garments that cyclists like Lance Armstrong wear or possibly some of the speed-skaters, but most definitely in swimming. This is more permanent than screen printing. The ink comes off the paper, turns into a gas for an instant, and then permeates the substrate (poly). We then put pre-cut, white polyester - it must be poly because only poly will sublimate - on top of the paper, and run it through a rotary press for approximately 30 seconds at or around 400 F. ![]() Our process consists of dispensing special, expensive inks onto specially-treated papers with wide-format, 54"-inch inkjet printers that cost about $30K each. ![]() ![]() It's ALL custom work (no stock items) and ALL sublimated. We make uniforms for basketball, soccer, softball, volleyball, and wrestling. We are in the textile industry and produce athletic apparel. We are a manufacturing company with about 70 employees in Pennsylvania. Quality Assurance in Pennsylvania writes: ![]()
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