You may find that the conventional score with the male on the inside will work just fine. Having said that, we still urge you to experiment with the male on both sides of the sheet. It’s usually limited to about 6pt paper and typically the male will be hitting the outside of the fold. But the end result is that fiber cracking can indeed disappear on the spine of the signature.

And you won’t get the bead you normally see on the inside of a real crease.

Technically, it’s not exactly a “crease” when you do a creasing operation on two or more sheets because the paper isn’t always de-laminated in true creasing fashion. We're referring to the type of signature with one or two folds in the main parallel section, a score on the spine and the final fold in the right angle. We discovered in practice, however, that with some 8pp and 12 pp right-angle signatures it was indeed possible to eliminate fiber cracking while “creasing” 2 or 3 sheets simultaneously. Conventional creasing wisdom dictates that creasing only works on a single sheet of paper, with the male hitting the outside of the fold. Naturally the real world likes to mix things up a bit, especially if we think we have something figured out. For those of you whom already own Technifold Tri-Creasers, be sure to ask about our Nylon Creasing Ribs which are made of a harder material than our traditional style creasing ribs and our great for laminated sheets, brouchure and signature work. The paper will not de-laminate internally and thus will probably not eliminate a fiber cracking problem. It can produce a great score but it can’t crease. One popular example (drawing) is the steel score blade pushing the sheet between two steel collars or against a rubber counterpart. Many scoring tools, however, such as those without female channels, are not capable of producing a true crease. Note: Creasing Tools can be used for both creasing and scoring. This is accomplished by fine tuning the score for the stock and sequence of folds. The bigger issue is getting the brochure to fold consistently and accurately. Fiber cracking is usually not an issue for this type of work. Mechanical scoring tools will normally have the male running on the inside of the folded piece for jobs like this. It includes all types of rotary mechanical devices as well as wet-scoring, in which a needle applies a thin line of liquid along the fold line. This is done by scoring, which we define as any technique that weakens the paper along the fold line to assist in folding. In these cases you are trying to make two or more sheets of paper fold consistently where you want it to. Typically this is brochure and signature work, consisting of multi-panel right angle work. Scenario #2 - Folding where fiber cracking is not an issue. Of course there are exceptions to these guidelines which we’ll cover below. You can read more detail about creasing paper versus scoring paper here in a previous Bindery Success Blog article. The delamination relieves the internal pressures of folding and thus eliminates the fiber cracking that would normally occur.

Simply put, this de-laminates the sheet internally ( diagram at right) and creates a paperboard hinge.

Run the male side of the tool on the outside of the folded pieceĪ creasing tool, such as our Tri-Creaser, will compress the paper into a female channel as shown.

Use a Technifold EZ Fit or Fast Fit Tri-Creaser on your folding or scoring machine, Spine Creaser on your cover feeder or Spine & Hinge Creaser on your perfect binder.

If this is the result you are after, then you will need to do three things: Scenario #1 - Folding without fiber cracking. We’ll explain by reviewing the two most common scoring and folding scenarios you’re likely to encounter in your bindery department. What is it that you are trying to accomplish? Then you work backwards to determine which machines and procedures are best suited for that purpose. The real answer is a more down to earth and practical, “It depends.” But there is an easy way to figure out what to do when faced with a folding job that requires scoring. The good news is you have a 50% chance of guessing right! Yet if you guess wrong, you can end up struggling needlessly. For instance, the simple question, ‘Which side of the paper should I score on my folding machine?’ falls into that camp. There’s a good chance that some of what you’ve found to be true about printing and finishing paper is counter-intuitive.

For something with just two sides to it, it’s amazing the hundreds of questions that can arise.

Reduce card stock crack