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Printing Water Base Acrylic on Polyester

lycraPrinting water based acrylic ink on polyester is ideal.  There’s less chance of dye migration and can yield a light ink deposit on thin garments. When talking about polyester, the first thing that stands out for this type of garment is the low stitch density of the polyester, which will make it very porous. The thickness of polyester is very thin; In addition, the garment is often completely saturated with dye and the difficulties can be even further exasperated if the polyester is holding a percentage of lycra/ rayon in it. Lycra is a synthetic fiber that does not hold any dye. Instead, the dye will simply rest around the individual fibers add to an over-saturation of dye on the garment, making dye migration more likely to occur.

Printing with an under-base blocker is crucial for quality prints, however, to maximize the effectiveness of an under-base blocker and the additional white under-base, it is important to have minimal pressure where the fabric and the screen meet. To achieve this, you can change your squeegee or squeegee angle, increase tension on the screen, change the off-contact, and etc. The key is to work with what you have to achieve that minimal penetration into the fabric so the final print will have a soft-hand feel and be opaque with no dye migration. In addition, the flood bar height is a little bit higher with water base printing as we are not simply moving the ink back up to the base of the screen for another pass. We are glazing over the screen a thin layer of ink to cover the screens, insulating moisture to prevent clogging (as can be seen in the video above).

 

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In the squeegee angle chart, we see the type of deposit we can expect with each type of angle. At Matsui, for the most of our ink we recommend usually 65°,  The viscosity level is a little lower usually for water base inks, so if you are currently using plastisol, you will most likely need to adjust slightly for optimal printing.

5 Things to Remember when Starting a Screen Printing Business

1) Don’t do it all

It is recommended when starting a screen printing business to focus on specialty niches. The screen printing business has been growing and is more competitive than ever. Certain examples of niche markets include, high school sports, mothers, or activity club attire.

2) Having sufficient access to space for equipment

Screen printing equipment can take up a lot of space, also, operating the various machines and equipment requires certain safety and protocol to ensure safety and hazard standards are met. All ink types require to be disposed and ventilated accordingly to regulations,

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Defining Eco-Friendly

Matsui International is driven in the innovation of water based acrylic and discharge inks.  This innovation is founded on pursuing eco-friendly technologies.  From this sustainability stance, the history of screen printing ink has had a dubious history; to pair with that, the ambiguity of what is eco-friendly.  To illustrate this further, when you hear “sustainability” or “eco-friendly” the tangible details of what defines these words in screen printing can leave you with surprisingly little to say.

When each new product is unveiled Matsui International goes through the effort of testing products through Oeko-Tex, a leading organization in the research and testing of textile ecology.  This company has set testing grades and value limits for an extensive list of harmful substances.  Oeko-Tex testing criteria fit into three categories: illegal substances, legally regulated substances, and harmful substances that are not yet regulated.  Their exhaustive test criteria exceed that of most legislative governing bodies, making Oeko-Tex one of the leaders and authorities in textile testing.

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