Introduction Printing ink is so much more than just the black stuff that you put on a page. It has been around for thousands of years, and it's been used in everything from newspaper presses to digital printers. As you can see, we're not talking about offset printing ink which is oil based. I want to have a little fun and talk about how you can make your own ink for your printer. At home! Ready? Ingredients You will need the following ingredients: Soot (5 tbsp) : This is as purest as it gest. You can make the soot yourself by holding a glass up to a flame. This will allow you to slowly accumulate the soot. Water (2 tbsp): For the base of your ink, use distilled water so that you don't introduce any impurities into the mix. Distilled water is also easier to clean up than tap water because there are no minerals or residue left behind from tap water. Alcohol (2 tbsp) (grain alcohol): This ingredient works as a preservative for your ink and allows it to last for several mo
Troubleshooting a damaged core concerns mostly web offset printing presses. It is considered a serious defect only if it prevents the paper roll being loaded onto the press. Some damage is so bad that the entire roll is unusable. A damaged core can have several causes: 1. The shaft was improperly inserted into the roll, causing it to slip. If there is not enough grip from the shaft, it will slip and grind up the shaft (see below). This is generally the fault of the offset printer. Core is ground up inside because of shaft. 2. The poor design of the shaft causes damaged to the edges (see below). Some roll stands clasp onto the ends of the roll and do damage to the core. If a roll is reloaded several times, it can get damaged to the point that there is nothing left to grip. Once again, this is the fault of the equipment and not the paper mill. Damage caused by poorly designed shaft. 3. Poor mechanical strength of the core . This is an issue at the paper mill. At times the core c