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APPLICATION
FIELD
The Test is intended to determine
Colour Fastness of Textile Material
irrespective of their Composition
(Cotton, Linen Silk, Man Made
Fibers & Wool) and their
Form (Fiber, Yarn or Fabric)
to Washing. p. s. : The K.V.S.
Digital Washing Fastness Tester
can also be used for
checking the Colour Fastness
against Drycleanig & Bleaching.
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INTRODUCTION
In this Test, a Specimen of
Textile in contact with pieces
of Adjacent Fabric (Standard
Fabric) is mechanically agitated
in a Standard Soap Solution
(Sodium Oleate Solution), before
being rinsed and dried.
The
change in Colour of the Specimen
and the Staining of the Standard
Fabric are assessed with Standard
Grey Scales. The Instrument
used for this purpose is called
Digital Washing Fastness Tester.
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EQIUPMENT
The K.V.S. Digital Washing Fastness
Tester is supplied complete
with :
1. Main Bath (Made of Stainless
Steel).
2. 8 Nos Die Made Stainless
Steel Test Vessels (Jars).
3. 100 Nos Non-Corrodible Steel
Balls.
Details
of the Important Parts of The
K.V.S. Digital Washing Fastness
Tester :
1. Stainless Steel Main Bath.
2. 100 Nos Stainless Steel Non-Corrodible
Balls.
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MAIN
BATH (Stainless Steel)
The Main Bath is double walled
S. S. Water Bath, which is electrically
heated with Digital Temperature
Controller-cum-Indicator. The
gap between the walls is duly
filled with special grade glass
wool for proper insulation.
The Bath is heated by means
of two Immersion Heaters and
a Capillary type Thermostat
controls the Temperature. The
Temperature of the Bath is indicated
on a Digital Temperature Controller-cum-Indicator.
The Bath has a double walled
hinged lid made of stainless
steel sheet.
The
Bath is provided with 8 nos
Die Made Stainless Steel Test
Vessels (Jars). In these jars
the Standard Soap Solution and
the Test Specimens are kept
during the Test. The vessels
are provided with Silicon Gaskets
for water tight closing. They
are held in a Stainless Steel
Rotor Assembly mounted on a
Stainless Steel Shaft at the
Center of the Bath. The Assembly
rotates at a speed of 40 r.p.m.
± 2 r.p.m. The Rotor
Assembly rotates with the help
of an Electric Motor and Reduction
gearbox.
A
special Inching Switch is provided
in the K.V.S. Digital Washing
Fastness Tester for Loading
and Unloading of the Test Vessels.
It facilitates tremendous ease
in operations.
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STAINLESS
STEEL BALLS (BS 1006 : CO4,
CO5, CO6 :1990)
100 Nos non-Corrodible Steel
Balls of 6 mm Ø are provided
with The K.V.S. Digital Washing
Fastness Tester. These Balls
are used for providing beating
action during the washing operations.
The
Complete Unit is fabricated
on a Stainless Steel Frame.
All four sides of the Unit are
covered with beautifully S.
S. Sheets. The Complete Top
of the Unit is also made of
Stainless Steel Sheet.
An
attractive Acrylic Panel housing
all the Controls is provided
on the Front Right Side of the
Unit.
Two
Water Outlets are provided on
the Left Side. Top is the Overflow
outlet and Middle is the Water
Outlet of the Main Bath.
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TECHNICAL
DETAILS |
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Dimension
of Main Bath |
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Depends
upon No. of Test Vessels
(Jars). |
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No.
of Test Vessels |
: |
Die
Made Stainless Steel Test
Vessels (Jars). |
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Volume
of each Vessel |
: |
550
ml approx |
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Speed
of Rotation |
: |
40
r.p.m. ±2 r.p.m. |
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Temperature
of Main Bath |
: |
Ambient
to 110 °C. |
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Motor
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¼
HP 230 V AC. |
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Inching
Switch |
: |
For
Loading and Unloading of
the Vessels |
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Controls |
: |
Digital
Electronic Temperature Controller-cum-Indicator
with Digital Timer |
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Buzzer
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Automatic
Electronic Audio Buzzer |
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Stainless
Steel Balls |
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(BS
1006 : CO4, CO5, CO6 :1990) |
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Availability
of Models |
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From
Models having 4 Beakers
to 24 Beakers |
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RELATED
STANDARDS |
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IS
- 687-1979 |
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Methods
of Determination of Colour
Fastness of
Textile Materials to Washing
~Test 1 |
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IS
- 3361-1979 |
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Methods
of Determination of Colour
Fastness of
Textile Materials to Washing
~Test 2 |
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IS
- 764-1979 |
: |
Methods
of Determination of Colour
Fastness of
Textile Materials to Washing
~Test 3 |
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IS
- 765-1979 |
: |
Methods
of Determination of Colour
Fastness of
Textile Materials to Washing
~Test 4 |
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IS
- 3417-1979 |
: |
Methods
of Determination of Colour
Fastness of
Textile Materials to Washing
~Test 5 |
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