2. TYPESOFLAUNDRY
2 types of laundry operation :
On-premise-laundry (OPL),and
Contract-out-laundry (COL)
1) On-premise-laundry (OPL)
Located in the hotel premises.
Owned by the hotel.
The laundry department staff is employed by
the hotel.
3. AdvantagesanddisadvantagesofOPL:
ADVANTAGES DISADVANTAGES
Complete quality control
Linen last longer than COL
No delivery/transportation
problem
Capital assets
Need a lot of space
Very costly to starting up (machine
are expensive)
High running cost (pay for utilities
and salary)
Required technical expert (to handle
washing machine and dryer, others)
4. 2) Contract-out-laundry (COL)
Located out of the hotel premises.
Not owned by the hotel.
The laundry department staff is not
employed by the hotel.
Must signed contract between hotel and the
outside company.
5. AdvantagesanddisadvantagesofCOL:
ADVANTAGES DISADVANTAGES
Space does not have to be
found
More economical
Save labour cost
No capital outlay
Little technical expertise
required.
Less control over standard
Delivery & collection
problem
Expensive
Need a good system of stock
control, difficult to manage the
stock (par level)
6. Factors to be considered for
planning OPL
What is the maximum amount of laundry
(output) the OPL would be expected to handle?
How much space should be allocated to the OPL?
How many equipment is required?
Manpower required to operate the
laundry efficiently has to be
considered carefully.
Proper operation time has to be planned in
order to meet the laundry demands of the
hotel.
7.
8. FlowofLinensthroughtheOPL
The laundry cycle includes the
following steps;
collecting soiled linens; never use linen for any
cleaning purposes
transporting soiled linens to the laundry;
hand-carry/cart/linen chutes
sorting; by the degree of soiling (lightly,
moderately and heavily soiled) and by the type
of linen (fibers, weaves, colors and
categories); important for the right temperature
and formulas
9. D.washing;weigh the linen, and consider
(1) time needed, (2) temperature - 83 to 88
centigrade for oilysoils,72 for heavy soils,60
for kitchen rags and linen, (3) agitation
(4) chemicals -include
detergents, bleaches, softeners, etc.
wash cycles includes the following
steps;
flush (1.5 - 3 min):dissolve and
dilute water-solublesoil to reduce
soil load
break (4 - 10 min, optional):a
high-alkaline break products is
added to loosen soil
suds (5 -8 min):actual wash cycle with
detergent
carryover suds or
intermediate rinse (2 - 5
min):removes soil and
alkalinity to help bleach
10. bleach (5 - 8 min):kills bacteria,
whitens fabric,removes stains
rinse (1.5 - 3 min):removes detergent and soil
intermediate extract (1.5 - 2 min, optional):
high-sped spin removes detergent and soil,
after the first rinse step. should not be
used after suds step because it could drive
soils back into the fabric.
sour/softener or starch/sizing (3 - 5
min):starches are added to stiffen cotton
fabrics;sizing is added for polyester
blends.
Starching/sizing replaces the sour
/softener step.
extract (2 - 12 min):high speed
spin removes moisture, length of
it depends on fabric types,
extractor capacity and extractor
speed
11. chemicals:a chemical needs depend
on (1) the types of linen it uses and (2) the
soiling conditions encountered.
Commercial OPL uses more alkali to enhance
the cleaning power. Major chemicals
used in the laundry;
water:2to 5gallons of water are used
for every pound of dry laundry.Other
chemicals must be added to help it
clean better.
detergents: (a) synthetic detergents
effective on oil and grease, (b) builders or
alkalies are added
to to soften water and
remove oil and grease,(c) soaps - neutral or
pure soaps contain no alkalies,built soaps do.
fabric (optical) brighteners:
keep fabrics looking new and colors close to
original, often pre-mixed with detergents.
12. bleaches: help remove stains,kill bacteria
and whiten fabrics.
There are two kinds (a) chlorine:
used with any washable,natural, colorfast
fiber. safe for some synthetics and
destroy others.(b) oxygen: is milder. safe for
most washable fabrics.
works best in hot water and on
organic stains. Both should not be used at
the same time becausethey neutralize each
other. pH (degree of acidity or
alkalinity) and water temperature must be
controlled to prevent fabric damage.
alkalies: help detergent lather better
and keep stains suspended in the water after
they been loosened and lifted from the
fabric. Also help neutralize acidic
stains (most stains are acidic), making the
detergent more effective
13. antichlors: used in rinsing to ensure all
the chlorine in the bleach has been removed.
mildewcides: prevent the growth of
bacteria and fungus on linens for up to 30
days. These microorganisms can cause
permanent stains that ruin
linens. Moisture helps these to grow,that
is why
,soiled damp linen should not be
allowed to sit in carts for long periods, should
be dried and/or ironed when they are
removed from washers or extractors.
sours: are mild acids to neutralize
alkalinity in fabrics after washing and rinsing.
Detergents and bleaches contain alkali and
any residual alkali can damage fibers and cause
yellowing/fading, and skin irritation and leave
odors.
14. fabric softener:make fabrics more
supple and easier to finish,added
with sours in the final wash,can
reduce ironing, speed up extraction,
reduce drying time,reduce static
electricity in fabric. Too much
can decrease a absorbency.
starches: give linen crisp
appearance,added in the final
step in washing.
E.Extracting and
drying;
removes excess
moisture through high-speed
spin,
reduces the
weight of the laundry,
makes it easyto lift,reduces drying
time.
