A crease marks the kind, like a paper sheet in the treatment, for example in printering, is folded. With respect to the pressure nature one differentiates different forms of the paper crease.

Bag crease

With the bag crease the elbow runs into a Falztasche and by the stagnation pressure is then folded.

Sword crease

Here the elbow is stopped and folded by sword or measurer from above

Parallel crease

With the simplest form, the creases are appropriate for the parallel crease parallel to each other. This is for example fundamental with a parallel in the middle crease, a winding crease a form tractor crease or an altar crease the case.

Winding crease

Winding crease is a form of the parallel crease, with which two or several are folded equal broad parts of the crease elbow without direction changes around an elbow part. Because the grooving goes in each case into the same direction, arises the named-giving coil winding two parallel groovings results from a crease elbow 3 sheet and/or 6 sides. One speaks here of a two-break winding crease. A three-break winding crease results in 4 sheets and/or 8 sides etc.

Form tractor crease

Form tractor crease is a form of the parallel crease, with which two or several parts of the crease elbow in changing directions are folded. Because with each grooving the direction is changed, arises a zigzag-well-behaved grooving, why this form is called also frequently zigzag crease. In the case of two parallel groovings 3 sheet and/or 6 sides results from a crease elbow. One speaks here of a two-break form tractor crease. A three-break form tractor crease results in 4 sheets and/or 8 sides etc.

Altar crease

The altar crease is a form of the parallel crease, with which the outside parts of the crease elbow are inward folded. One can obtain thereby two results:

• If one takes a sheet paper in the landscape format and it breaks the edges so inward that equal three large fields develop, by high-folding only right edge and then the lefthand side, then a 6-seitiger altar crease develops. (This result is called also winding crease.)
• If one takes a sheet paper in the landscape format and if it breaks in such a way that equal four large fields develop, by folding only the elbow accurately in the center and then in each case the left and the right field folds still once inward and thereby halved, then a 8-seitiger altar crease develops.

Of six sides one speaks, because one sees large fields after folding from the front and from the rear in each case equal three. Of eight sides one speaks, because four fields each are to be seen accordingly in front and in the back.

The term altar crease finds, just as for example the form tractor crease, in the printering industry as well as in the advertisement frequently use, if it concerns the production from Werbeflyern so mentioned. The word is derived from the wing altars in churches, which become folded in similar way "„"“.

Articles in category "Crease (printing)"

We found here 5 articles.