For the positive patterning, the direct contact printing method using the PDMS molds as the stamps was successfully performed via suppressing the solvent swelling effects and enhancing the adhesion properties.
(k-o) The positively patterned P3HT layers via direct contact printing. The chloroform solvent was solely used for spin-coating deposition of the polymer on the PDMS surface due to serious dewetting issues.
As fine-art photography collectors know, the prized, long-tonal scale palladium-platinum prints only can be produced by contact printing
negatives, so print size is usually limited to camera film formats.
The article also discusses terms such as downstop, contact printing and snap-off printing and processes such as stencil design and 2-D inspection.
Q: What are the differences among contact printing, snap-off printing and slow snap-off?
A: Contact printing is achieved when the entire stencil contacts the substrate during the print process.
Contents include: principles of contact printing
; principles of noncontact printing; groundwood paper grades; coated grades and commercial printing; book publishing paper; business and writing papers; paperboard; performance characteristics of paper; testing paper and board for printing; and, future trends.
Willett Systems managing director, Mike Fox, told Food Trade Review: "Non contact printing
is hygienic because the product is never touched.
Offers a complete range of ink-jet printing, laser, thermal transfer, contact printing
, indenting, etching, inks, material handling, and integrated solutions.
It is interesting, then, to consider what we here at Ink World hear when we contact printing
segments for our Downstream features.