Light sources have three main attributes. The optimization of each determines whether stencil quality is excellent, good, or poor.
Wide-format UV inkjets come in models that can print on thick and rigid materials, combination systems for both flatbed and roll-to-roll printing, and flexible, roll-fed media. Regardless of the configuration of these devices, all of them share the distinguishing feature of printing with UV inks, which are cured with specially designed lamp assemblies.
Siser (www.siserna.com) says Digi Patterns can help you take lettering and logos to the next level by filling them with a dynamic, 3-D or textured patterns that will make them pop. Fashion designs include skulls, a variety of abstracts, blue jeans, and a range of camouflage variations. Animal prints include leopard, zebra, giraffe, snake, and savannah. Other choices include puzzle, bricks, and diamond patterns. A logo or name can be printed over the pattern as well.
For those not familiar, Woot! (www.woot.com) is a heavily trafficked deal-of-the day site that features several product-specific channels: home goods, stuff for kids, wine, close-out items, and -- best of all -- screen-printed T-shirts. And not just any screen-printed T-shirts, mind you -- T-shirts that are screen printed in the good ol' USA. And it gets better: The T-shirts are sweatshop-free and made in America!
Oil Eater Naturals is a new line of absorbent pads from Kafko Int’l (www.oileater.com). The pads are made of natural plant by-products and feature woven construction. According to Kafko, the pads will absorb up to 20% more than melt-blown polypropylene pads. Product sizes range from 16 x 18 in. to 28 in. x 150 ft. Weights include light, medium, and heavy. Oil-Only Pads and Rolls soak up oil and repel water; Universal Pads and Rolls soak up oil, water, and other liquids; and Absorbent Socks control larger spills and protect drains.
Roland DGA Corp. (www.rolanddga.com) expanded its Eco-SOL MAX certified media line to include Solvent Glossy Paper with Adhesive (ESM-SGPA). Roland says the paper is tested and profiled for performance with its eco-solvent printers and printer/cutters and bills the media as an alternative to vinyl for decals and mounting. The 8-mil product is multicoated for water resistance and durability and can be used for indoor and outdoor displays. Its permanent, water-based acrylic adhesive is backed with a silicone-treated liner.
As the number of products referred to as haze removers continues to grow, so does the confusion over
what classifies as a haze remover. Some degreasers also dehaze, and some dehazers also degrease. There are abraders that dehaze and dehazers that abrade. To simplify matters, let’s organize and define common screen-prep and cleaning products.
Frames come in two main varieties: static and retensionable. Of these two groups, the static or rigid frame—commonly known as a stretch-and-glue frame—is the simplest form. Rigid frames are available in many different materials and profiles. The most common materials are wood, tubular aluminum, and tubular steel. Wood frames are arguably the most popular due to their lower cost but are limited in size for strength reasons and generally not recommended for high-resolution, tight-tolerance work.
Dot gain is the amount that a halftone dot will increase in size during a printing run. All printing of halftone dots creates this spread to some degree; the challenge is to control and manage it to reduce the amount of unpredictable shifts in the finished imprints. The more separation issues you can deal with on the computer, the less you will have to address when it’s time to print T-shirts.
A fast-moving area for graphics printing lies in the growth of digital. If it can be digital, it will be is a frequently quoted comment attributed to Benny Landa of Indigo, now HP-Indigo. “I think this quote extrapolates to the screen and specialty printing markets,” says Tim Greene, adding that innovations in material deposition, printhead technologies, and substrates enable digital printing systems to take on more marketshare than in the past. But some things can’t be digital, he adds.