Term
| Did thermal inkjet cause the revolution? |
|
Definition
| no, drop on demand (branch) – piezo (could print using any ink) |
|
|
Term
|
Definition
-started in 1990’s
-Common for color-graphics in large sizes, thanks to large drop on demand inkjet printing (bubble jet, thermal inkjet) |
|
|
Term
| When was the drop on demand? Who did it put out of business? |
|
Definition
| conceived in 70’s, prototyped in 80’s, used in 90’s, put dot matrix printers out of business |
|
|
Term
| Why did thermal inkjets sell more than any other type of printing? |
|
Definition
| It was due to the disposable print heads (I have thermos, most ppl do) |
|
|
Term
| What is phase change ink? |
|
Definition
| – ink that is solid at room temp (crayon), heat it up, turns into liquid using a heated applicator, no drying needed, very bright colors, not scratch resistant, used a lot for menus, invented in early 1950’s, didn’t catch on until inkjet, bc its more practical. |
|
|
Term
| If printing indoor high quality large color prints (photos in a salon), what technology should you use? |
|
Definition
| Color photographic printing. Large format printers that print on drums/rolls, image paper with 3 lasers individually, resolution = superb. |
|
|
Term
| What is electronic air brushing? |
|
Definition
| started in 1930’s, lower resolution than inkjet, it’s faster, better for huge prints, such as on the side of a stadium, out door billboards. Using light fast inks (automotive), metal flakes, high quality tough finishes, prints easily on plastic. |
|
|
Term
| What is electrostatic printing ? |
|
Definition
| large format printing technology of the 1980’s, used for map making. Advertising branding market uses this heavily now. Came as large color graphics technology, on airplanes. 4 to 5 times faster than inkjet. |
|
|
Term
| What are the trends in large format printing? |
|
Definition
| UV inks, Coating, and Spot coating |
|
|
Term
|
Definition
| UV inks will NEVER DRY until you cure them (exposed to high radiation source) |
|
|
Term
| What advantages do UV inks have? |
|
Definition
| Huge advantage for other process – screen printing, avoids problems with drying in the mesh, hard cure, tough scratch resistant, expensive, improves appearance of the prints. |
|
|
Term
| What type of coating is used these days and for what? |
|
Definition
| clear coats on top of inks, sometimes they are tinted, mostly clear. Improves scratch resistance, reduces emission of organic compounds. |
|
|
Term
|
Definition
| putting coating on specific spots, used for fancy packages, won’t mess up the glue. |
|
|
Term
| What are holograms used for? |
|
Definition
| used for security, hard to copy because doesn’t act by reflected light, work by light interference, so won’t be captured when they are scanned or photocopied. Takes UV or black light at certain angle to see it, very high resolution, can even self-destruct. Not durable enough for US currency. |
|
|
Term
|
Definition
| invented by Xerox who is out of the business, invented in1970’s |
|
|
Term
| When did E-paper reach the market? |
|
Definition
| Late 90's. Actually came out in 2001. |
|
|
Term
| What is the leading technology in E-paper? |
|
Definition
| E-ink made by people at MIT |
|
|
Term
|
Definition
| Rotating bi-chromo spheres technology |
|
|
Term
| How does the rotating bi-chromo spheres technology work? |
|
Definition
| 2 colored particles, can be rotated, and stays after the electrical impulse is turned off for e-paper. |
|
|
Term
|
Definition
| more flexible less stiff, more legible, not a major market force today |
|
|
Term
|
Definition
| print individual copies of a book, real technology, uses the internet to market and sell |
|
|
Term
| What is the printing technology used for printing on demand? |
|
Definition
| electro-photographic machines |
|
|
Term
| Disadvanages of printing on demand? |
|
Definition
| Expensive, not good quality, but get a book that is out of print |
|
|
Term
| What type of printing is used for the US currency as well as for the rest of the currency in the world? |
|
Definition
|
|
Term
| What are soem of the US currency security devices? |
|
Definition
| watermark, micro-printing, security fibers, security threads (used so that can’t be reprinted), holographic ink, secret formula for ink and paper, UV neutral paper, doesn’t glow under black light except security thread. Uses cotton pulps, but other currencies use wood. |
|
|
Term
| What is Die-cutting? How many types of die-cutting are there? |
|
Definition
| 2 flavors, everyday/mundane cutting (boxes, envelopes) with steel dies, other is for marketing purposes (putting windows in a greeting card). |
|
|
Term
| What is laser die-cutting used on? |
|
Definition
| Laser die cutting is only used on lightweight papers, has amazing detail, expensive niche |
|
|
Term
| What are the 2 finishing techniques that are done together? |
|
Definition
Embossing & foil stamping.
Foil stamping uses a heated dye, embossing uses a steel dye (needs positive and negative dye), need to have similar equipment, so easier to make together. Embossing creates detail |
|
|
Term
|
Definition
| paper making, finishing process, not coating, its polishing an uncoated paper surface, goes through a calendaring stack, has a soft cotton roller next to a steel roller, running at different speeds. Used for paper used in better print quality, cheaper than coating. |
|
|
Term
| What is Cast coated paper? |
|
Definition
| Highest quality paper you can buy, smoothest best paper, heavy coating layer on both sides, run it against a polished heated steel drum at slow speed, takes on a mirror polish surface. |
|
|
Term
| What are brown paper bags made from? |
|
Definition
| They are made from craft paper, the strongest sheet of paper that can be made from trees, not as strong as cotton/linen. Chemically digested pulp, not bleached bc it would weaken the paper |
|
|
Term
|
Definition
| It is a product marking technology, high resolution, high end pad printing. |
|
|
Term
| fold a paper once how many pages? |
|
Definition
| 4. two times = 8. three times = 16... keeps going up in powers of 2. |
|
|
