3. PREPARATIONS FOR WEAVING START-UP
86
3.1.6
Preparations for Waste Selvage
Device
This device binds weft jetted up to the outside of
the right edge of the woven fabric with several
yarns fed from the waste-selvage cheeses (in the
stand-equipped type) or with several warps (in the
non-stand type) in order to apply tension to the
weft, for an ideal selvage construction.
[ 1 ] For stand-equipped type (which has a
waste-selvage bobbin stand)
•
Yarn specifications:
EC23/2’s as standard
EC24/2’s or EC25/2’s may be used pro-
vided that they have a strength equivalent
to 23/2’s or higher.
•
Cheese shape
Shown at left are the recommended dimen-
sions and shape of a waste-selvage
cheese.
(2) How to draw in waste-selvage yarn through
the reed
You may draw in waste-selvage yarn in either
of the following ways:
(A) : Standard
Draw in waste-selvage yarn so that the left-
most waste-selvage yarn is 1-3 mm (“b” shown
at left) away from the right edge of weft feeler
WF1.
(B) : Special
To make the waste selvage section as short as
possible, draw in waste-selvage yarn so that
the leftmost waste-selvage yarn is 5 mm (“a”
shown at left) away from the rightmost ground
yarn and the rightmost waste-selvage yarn is
1-3 mm “b” away from the left edge of weft
feeler WF1.
NOTE:
This special way may cause a false
stop (even if a weft comes in normally, the weft
feeler stops the machine). Therefore, use the
standard way (A) except for specially required
cases.
Waste-selvage yarn
Waste-selvage bobbin
stand
(1) Waste-selvage yarn
(which you should procure)
Ground
yarn
b
(A)
Weft feeler
WF1
Waste-selvage
yarn
Waste-selvage yarn
Ground yarn
b
Weft feeler WF1
(B)
a
