In the carton box production process, the creasing part is very important, it is not only affect the carton box quality also affect the carton box production cost. There are 3 commonly creasing issues listed below:
1. Irregular creasing line
The creasing line with the ridge began the process after the fingerprint folding substrates favorable pressure. The main reason that causes the irregular line card slots folding creases are too large, if the thickness of the panel began with the grooves of the paper, and custom rounded a corner .. Knife consecutive solid insufficient sealing knife, steel pipe is very narrow, and so Irregular folding carton approach exception to replace steel wire line buffer paper slit width settings as appropriate, increased thickness of the steel wire cutting Paper buffer opening angle model in the form as a strong set of hand knives feel appropriate to apply the knife seal.
2. Uneven pressure
We know that the creasing line is caused by the window wrinkles, creases or folds extrusion. In the production of the carton box, at the end of the line is under the control strain. The
principle of cardboard into the two slots solid surface (male and
female) for the printing cylinder is damaged, the internal structure of
paper fibers, thereby forming a sheet of paper in the hierarchy of
concave and convex lines of external links. Split the packet add lines 90 or 180 degrees is connected, a layer of paper sizing internal folding (grip) completely.
There
are two cases, causing uneven pressure on the box folding process: the
pressure a little bit irregular uneven.If can knife, irregular lines,
this time to set a balanced array so that the platform also powers
uniform.It attack fiber paper, the paper is the theme cut line vertical and horizontal better effect. Another
serious unevenness.If back and forth to the four corners of the
platform phenomenon heavy irregular pressure should be monitored when
they wear like a pendulum must be strong, to replace worn-out, otherwise
you have to adjust the pressure of the four thickness of constant
pressure.
3. Burst
Breakage
refers to the longitudinal cutting cardboard, folding, bending occurs
in the first and often, especially in dry weather. Wrinkles form when (stamp) is inserted into the slot, there are three forces. The
pressure on the surface tension of the cardboard train and the three
forces in addition to the permanent deformation Council also reduce the
adhesion between the layers of fiber. Break
during the folding of the paper surface, said inner layer of stress is
responsible subjected to pressure, when the pressure exceeds the
adhesion between the fibers of the paper, cardboard, paper fiber becomes
internal bend.The It is soft and gentle pressure can be too, if more
power than cardboard box is divided into lines. This occurs in many situations, such as clarification of paper, card holder, excessive shock pressure, etc.
In
general, the quality of the carton box template requires not only the field of technical
issues, such as pressure, strength and level of aesthetically beautiful
vision constantly exceed qualified, technique requires more points with
products of high quality proposals.
