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Fleece Fabric, 2 threaded fleece, 3 threaded fleece, % calculation for finished GSM etc.
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The Fleece fabrics:
Technically, fleece fabrics are not truly of a pile construction. Fleece fabrics are knitted so that,
when finished, they will have a short to medium nap that has a soft, pleasant hand. It will
provide warmth body, as well as moisture wicking & absorption, if desired. The kind of fibers
used is dependent upon the use of objective.
They are used for such purposes as linens, active sportswear, outwear & plush toys.
Fleece knits can be made on circular knitting m/c in any one of three different types of
construction. The m/c employing sinker top, dial cylinder mechanisms with these equipments
various effects can be produced.
Two thread fleeces:
One type of fleece knit is the 2-yarn system. One yarn which provides the ground or body is
knitted either in single or double jersey construction. The second yarn, which may be coarser
and heavier to accommodate subsequent happing, is the floating or inlay yarn that is tucked at
predetermined intervals on selected needles. This is the most productive method of making
fleece knit. Two thread fleece called simple fleece.
Feeder No. 1 :
Feeder No. 2 :
Feeder No. 3 :
Feeder No. 4 :
Repeat
Cam Arrangement for the Design (2 thread fleece):
Feeder No. 1 2 3 4
Needle Track 4 _ _
Needle Track 3 _
Needle Track 2 _ _
Needle Track 1 _
Here, = Knit cam = Tuck cam _ = Miss cam
Three thread fleece:
One type of fleece knit construction is the 3-yarn system, where 3 years are fed sequentially
from separate yarn positions around the cylinder of the m/c the first yarn is the backing or
fleece yarn. The 2nd & 3rd yarn are the tie-in & ground yarns which are fed successively in a
plaiting relationship & knitted so that the fleece yarn is enough of pre-determined intervals
between them. This result in the fleece yarn being floated on the technical back of the fabric &
held in place by the wales of plaited tie in a ground yarns. The technique hides the fleece yarn
from the technical face so that it will be exposed only on the back. The fleece yarn, which may
be coarse spun & low twist, can thus subsequently be readily napped & given other surface
finisher. Three thread fleece called invisible fleece.
Feeder No. 1 :
Feeder No. 2 :
Feeder No. 3 :
Feeder No. 4 :
Feeder No. 5 :
Feeder No. 6 :
Repeat
Cam Arrangement for the design (3 thread fleece):
Feeder No. 1 2 3 4 5 6
Needle track 4 _ Needle track 3 _ _ Needle track 2 _ Needle track 1 _ _
Here, = Knit cam = Tuck cam _ = Miss cam
Cam Arrangement for Diagonal Fleece:
Feeder No. 1 2 3 4 5 6 7 8 9 10 11 12
Needle track 4 _ _ _ Needle track 3 _ _ _ Needle track 2 _ _ _ Needle track 1 _ _ _
%Calculation for Finished GSM 250 (2 Thread Fleece):
Let us consider the following data
Face yarn count = 24S & Stitch Length for Face = 2.8 mm
Back yarn count = 20S & Stitch Length for Back = 1.4 mm
Machine Dia = 30
Machine Gauge = 20
No. of Needle = 1944
Now,
Course length for face = 1944 2.8 mm = 5443.2 mm = 5.44 m
Course length for back = 1944 1.4 mm = 2722 mm = 2.72 m
For face yarn = 24 840 0.9144 = 18432 m/lb
= 18432 2.205 m/kg
= 40643 m/kg
For back yarn = 20 840 0.9144 = 15360 m/lb
= 15360 2.205 m/kg
= 33869 m/kg
Face loop yarn wt = 1000
40643 5.44 = 0.1339 gm
Back loop yarn wt = 1000
33869 2.72 = 0.0804 gm
Total = (0.1339 + 0.0804) = 0.2143 gm
% Consumption for face yarn = 0.1339
0.2143 100 = .%
% Consumption for back yarn = 0.0804
0.2143 100 = .%
Fiber Composition (2 thread fleece):
If 80% cotton & 20% polyester & PC used in back -
Face yarn 24/1 Back yarn 20/1
Cotton 100 35
Polyester 0 65 Now,
Cotton Polyester
Face 62.5% 0%
Back 35 37.5% = 13.125%
65 37.5% = 24.37%
Total 75.625% 24.37%
100%
If 80% cotton & 20% polyester & CVC used in back
Face yarn 24/1 Back yarn 20/1
Cotton 100 60
Polyester 0 40
Now,
Cotton Polyester
Face 62.5% 0%
Back 60 37.5% = 22.50%
40 37.5% = 15.00%
Total 85% 15%
100%
%Calculation for Finished GSM 310 (3 Thread Fleece):
Let us consider the following data
Face yarn count = 30S & Stitch Length for Face = 4.5 mm
Plated yarn count = 34S & Stitch Length for Plated = 3.6 mm
Back yarn count = 16S & Stitch Length for Back = 1.55 mm
No. of Needle = 1885
Now,
Course length for face = 1885 4.5 mm = 8482.5 mm = 8.4825 m
Course length for plated = 1885 3.6 mm = 6786 mm = 6.786 m
Course length for back = 1885 1.55 mm = 2921.75 mm = 2.9218 m
For face yarn = 30 840 0.9144 = 23042.88 m/lb
= 23042.88 2.205 m/kg
= 50809.55 m/kg
For plated yarn = 34 840 0.9144 = 26115.27 m/lb
= 26115.27 2.205 m/kg
= 57584.157 m/kg
For back yarn = 16 840 0.9144 = 12289.54 m/lb
= 12289.54 2.205 m/kg
= 27098.427 m/kg
Face loop yarn wt = 1000
50809 .55 8.4825 = 0.1669 gm
Plated loop yarn wt = 1000
57584 .157 6.786 = 0.1178 gm
Back loop yarn wt = 1000
27098 .427 2.9218 = 0.1078 gm
Total = (0.1669 + 0.1178 + 0.1078) = 0.3925 gm
% Consumption for face yarn = 0.1669
0.3925 100 = .%
% Consumption for plated yarn = 0.1178
0.3925 100 = %
% Consumption for back yarn = 0.1078
0.3925 100 = .%
Fiber Composition (3 thread fleece):
If 80% cotton & 20% polyester & PC used in back
Face Plated Back
Cotton 100 100 35
Polyester 0 0 65
Now,
Cotton Polyester
Face 42.5% 0%
Plated 30% 0%
Back 27.5 35% = 9.625%
27.5 65% = 17.875%
Total 82.125% 17.875%
100%
If 80% cotton & 20% polyester & PC used in face
Face Plated Back
Cotton 35 35 100
Polyester 65 65 0
Now,
Cotton Polyester
Face 35 42.5% = 14.875%
65 42.5% = 27.625%
Plated 35 30% = 10.5%
65 30% = 19.50%
Back 27.5% 0%
Total 52.875% 47.125%
100%