-Classification of braiding
Braiding can be classified as two –and three-dimensional braiding
Two dimensional (hollow braiding) or circular (tubular or round) braids are formed hollow or round a center core . A circular braiding machine consists of two sets of an even number of spools containing the braiding yarns one set runs clock wise around the center of the machine and the other set turn in counter clockwise direction, while revolving in opposite directions , the carriers are diverted to pass alternately inside and outside, the clockwise direction and counter clockwise paths cause the two sets of yarns to intersect, producing a tubular braid .
Flat braids are made in the form of a flat strip or tape .In flat braiding, instead of following two continuous paths, the carriers turn around or reverse direction at two given points called terminals and then continue on the opposite track, the track does not complete a circle , the size of braid is governed by the following factors .
1-The number of carriers
Tubular braiders have an even number of carriers, and flat braiders usually have an odd number of carriers, the minimum number of carriers is three, which gives a basic diamond braids similar to girls plaited hair .
2-The diameter of the yarns .
3-The number of yarns per unit length .
Three dimensional braiding is relatively new compared to two – dimensional braiding .
Applications of the braiding
The use of braided fabrics is increasing , traditional examples of the braid structures for industrial applications are electrical wises and cables , harnesses hoses, industrial belts surgical sutures, sporting goods , base ball bats, golf water skis and snow skis. (4)