Warping - Textile Section

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Warping consists in transferring the yarn, packed in reels, spinning tubes
or bobbins, on the beam to be placed behind the loom and ready for weaving.

The Warping
There are three types of warping used in production:
1) The warping in sections or spans - used for limited lengths and in particular for patterned fabrics,
both by color, by title, by twist.
2) Fraction warping - used for high production of raw fabrics and fabrics with simple effects
of design, rigatini type with few colored threads compared to the total of the threads.
3) The vertical warping - used for very limited runs, less than 100 meters, intended for manufacture
of samples, patches, handkerchiefs and specimens.
The type of warping that characterizes the production of our textile district is that of sections or spans
while for sampling it is the vertical one.
For this reason, a more detailed description of the section warping will be made.
useed warp
The warping in sections or spans
This wraps groups of threads called flow rates or sections on a large cylinder called a barrel,
one after the other, up to the winding of all the warp threads in the expected length and height
for the warping. Once all the established flow rates have been wound, the warp is transferred to the beam
intended for the frame.
The warping machine basically consists of:
• a creel, a special rack where the spindles or the bobbins that will form the threads of each must be placed
• two combs, the first for glazing and the second for reduction;
• a barrel.
The scallop comb keeps the even threads separate from the odd threads to give each of them its own
position to be always maintained even during weaving: only one thread passes through each tooth.
The reduction comb gives the flow rate the right height which, repeated many times, constitutes the height
of all the warp threads: obviously several threads pass through each tooth.
The barrel consists of a large cylinder having a conical shape in the initial part, which prevents it
the threads of the first flow to overturn with increasing thickness of the flow (meters
warps). The same procedure is repeated for each course, and one settles on the other.
An electronic control panel helps the operator in programming all the technical parameters
essential for the smooth running of the warping process. Once the winding has been carried out
of all the warp threads, these are unloaded simultaneously from the barrel and poured onto the
beam intended for the frame (unloading of the barrel). In this last phase the passage is sometimes foreseen
before wrapping them on the beam, in a tray containing auxiliary products for
improve the smoothing or reinforcement of the threads, based on the type of warp yarn.

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