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Using light to examine garments
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The doctor who examines you often uses
light when inspecting your nose, ears and throat. I am
advocating similar examination when you inspect fabrics for
damages and stains.
Flashlight
A small flashlight will give you more
insight on stains and damages than you can notice under
ordinary light. When you shine a flashlight on stains you will
see the make-up of the stains more clearly.
Concentrated light on protein stains will
reveal an irregular pattern to the stains. This is
characteristic of stains such as egg, milk, ice cream, etc.
Oil stains will show a uniform staining
that does not have sharp outer rings. The flashlight can also
be used on back of the fabric. This will give a different
perspective to the staining than when it is observed on the
front of the fabric.
So for tannin stains, dark rings become
more apparent, protein stains show an irregular pattern with
some translucent effect, and oil stains will show a uniform
translucent effect.
Damages
When concentrated light is used on the
front of the fabric you will see imperfections on the fabric
more clearly. When a flashlight is aimed at the back of the
fabric and you observe the front of the fabric, the
imperfections are more distinct.
Ceiling light
You can also check staining and damages
using ceiling light. Hold the garment up to the light source
and view the staining and fabric on the front.
Ultraviolet light
Ultraviolet light gives you a different
perspective on stains, fabric damages and trimmings.
Examination under ultraviolet light will show greater
differences than using incandescent light. Some stains and
fabric damages will darken under ultraviolet light while in
some cases they will glow.
As you become more experienced with
ultra-violet light you will find examination easier to do. The
customer will also be more confident in your expertise and
professionalism.
In 1996, I invented, patented and
produced a light box called Spectralight (Patent #5,572,319).
The Spectralight uses the effects of light to study fabrics,
dyes and stains and to reveal hidden stains, flaws in fabrics,
weak areas, identify stains and reveal the composition of
stains.
The Spectralight can be useful to people
in textiles, garment analysis, museum curators, conservators,
restorers, manufacturers and retailers of clothing and
textiles.
Drycleaners using the Spectralight can
explain hidden damages to customers and stains that may not be
removable. This will avoid possible claims.
The light box was produced, sold and is
still currently being used by many cleaners throughout the
country and abroad. The original Spectralight was a unit which,
although mobile, had to be plugged in and set on a table or
counter.
Portable Spectralight
The new six-inch Portable Spectralight
utilizes a black light and is small enough to keep in your
pocket. It uses 4 AA batteries and can be brought to the
counter and carried to different sites to be used for examining
fabrics.
The black light is used to determine
fluorescent dyes, oxidized stains, weak areas and unserviceable
trimmings. The Portable Spectralight also has a hand strap that
makes it convenient and easy to operate.
The Portable Spectralight gives the
cleaner the same professionalism as a doctor when the doctor
uses a light. When explaining a problem to a customer, the
cleaner’s explanation is reinforced by the
professionalism exhibited. Madame Paulette Cleaners in New York
still uses the Spectralight and recommends it to the member
cleaners of America’s Best Cleaners.
Drycleaners often have a difficult time
explaining invisible stains, set stains and fabric limitation
to customers at the counter. The Portable Spectralight gives
the cleaner a professional tool that can clearly explain the
limitation of fabrics and the difficulty of set stains.
Customers can be professionally advised
of the problems associated with set stains. A common problem is
discolored areas due to loss of fluorescent dye. Customers can
be warned that some stains are not correctable due to the
limitations of the fluorescent dyes used on the fabrics.
The spotter is also in need of a tool
that can aid in identifying stains as well as indicating when
spotting procedures should be stopped to avoid loss of
fluorescent dye and other damages.
We found that concentrated black light,
like the one used in the Portable Spectralight, in a confined
area will cause many staining substances to glow. This includes
chloride salts, tannin stains and protein stains. The degree of
glow is diminished as the stain oxidizes from age, heat or
attempts at stain removal.
The Spectralight can also be used to
reveal the identity of stains by the transparent
characteristics the stain shows when examined with concentrated
light. Tannin stains will reveal the brown composition of the
stain while the albumin will become visible in protein stains.
Oil stains will be uniformly translucent.
We have also developed a way Spectralight
can be held to scan silks for shifting, weak areas and other
flaws. This can also be used to determine weakness in draperies
and curtains.
Trimmings can also be examined with the
Spectralight. It has been found that the unserviceable trimming
will show a fluorescence while the serviceable one does not.
Although this is not a positive identification, customers will
appreciate the professionalism displayed. Further tests would
still require using amyl acetate. I feel the Spectralight
should be used by every drycleaner and spotter since customers
view drycleaners by the professional approach they take.
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