Colour Fastness to Perspiration
Colour Fastness to Perspiration
(ISO: 105-E04)
Next, arranged acid and
alkali persperometers were kept in dry oven horizontally with 37oC
temperature in 4 hours. After completion of this oven operation, each composite
specimen were unmounted on persperometer and clamped them to more dry on line
using multi fiber attaching with clips. This process was done separately on
both acid and alkali specimens and was kept away each other in line dry. Then
all dried composite specimens stitch was removed and attached on test report.
Finally assessment process was done for prepared sample sheet and comments were
added into particular test report.
Fabric Perspiration Test
Perspiration Test For Textile Fabrics
Objective:
To determine colour change due to perspiration.
Principle:
According to the prepared alkali and acid solutions, colour fastness due to
perspiration is checked under the body temperature.
Tools
and equipments: Beakers and rinsing rods, specimen
templates, polyurethane plates, single needle lock stitch machine, multifibers,
persperometer, dry oven.
Procedure:
Before
cutting fabric specimens, it is needed to arrange acid and alkali solution.
Because in perspirations of body there are certain amount of acid and alkali is
generated in human body. In this test that acid and alkali amount is
artificially produced using different chemicals. To produce alkali solution,
following chemicals were used in 1 l
of distill water.
·
Sodium phosphate (disodium) = 2.5 g
·
NaCl = 5 g
·
L- Histidiline (mono-chloride) = 0.5 g
·
pH = 8
For
acid solution preparation process, following chemicals were used and dissolve
in 1l of distill water.
·
Sodium di-hydrogen orthophosphate = 2.2
·
NaCl = 5 g
·
L- Histidiline = 0.5 g
·
pH = 5.5
After
completion of solution producing process, next fabric specimens were cut in
particular samples in 10 cm x 4 cm dimensions. Next, particular multifibers
were attached to each fabric specimens. After composite samples weight were
taken and, required solutions applied on composite samples in beaker according
to the 1:5 liquor ratio. Next, solution with composite in beaker was rinsed
occasionally at least 15 minutes. This process was separately done for both
acid and alkali fabric specimens using already prepared acid and alkali
solutions. After completion of this process, each composite specimen was kept
on polyurethane plates and arranged 11 plates complex using additional
polyurethane plate and, this was separately done with acid and alkali
specimens. Next prepared plate and specimen complex was mounted on
persperometer and 12.5 kpa forces was applied using standard weight and
persperometer was adjusted using rotatable nails.
Next, arranged acid and
alkali persperometers were kept in dry oven horizontally with 37oC
temperature in 4 hours. After completion of this oven operation, each composite
specimen were unmounted on persperometer and clamped them to more dry on line
using multi fiber attaching with clips. This process was done separately on
both acid and alkali specimens and was kept away each other in line dry. Then
all dried composite specimens stitch was removed and attached on test report.
Finally assessment process was done for prepared sample sheet and comments were
added into particular test report.