3.1 Warp-related Preparations
79
3.1.3
Preparing the Healds
–– Reference –– Steel Heald Specifications
(1) Flat steel heald (reinforced type)
IMPORTANT
Check whether you are responsible for the preparation of the healds. If you are responsible, prepare them
before the start-up of weaving.
Flat steel heald
Overall length
Max. density
Yarn number count
Ty
p
e
Cross
section
size
Mail size
End-loop spacing
(L mm)
Sim
p
le
x
Du
p
le
x
Optimum yarn count
Metric
count
Tex
count
English
number
count
Denier
Cotton
Silk
mm
mm
280
300
302
330 /Cm /Cm
Nm
Tt
NeB
Td
GROBEXO
5.5
×
0.30
6.5
×
1.8
8
–
14
72
8
650
5.5
×
0.23
*1
5.5
×
1.2
20
34
30
20
300
5.5
×
0.25
*1
20
5.5
×
0.30
18
GR
OB
IM
O
5.5
×
0.30
5.5
×
1.2
15
34 or
greater
30 or
less
20 or
greater
300 or
less
(From the Grob catalogue))
NOTES:
1.
Healds with the dimensions marked with *1 should be used only when warp density
is extremely high.
2.
For filament yarn or high-speed operation, the end-loop spacing "L" should be 280
mm.
3.
Healds with end-loop spacing of 300 mm may not be available in the market.
4.
For weaving with spun yarn, healds with end-loop spacing of 302 mm or 330 mm are
recommended for tappet cam shedding or dobby shedding, respectively.
5.
Mails are provided in the center of the overall length. The sectional dimensions of
the carrying rods (carrier rods) are 9.5
×
1.5 mm.
L
L/
2
L/
2
