Friday 24 April 2020

CLEANING SCIENCE

Cleaning is carried out for the following reasons:-

a) Aesthetic appeal – The environment is made visually attractive and appealing

b) Hygiene – Effective, frequent cleaning controls, the growth and reproduction of pathogenic bacteria and other germs.

c) Maintenance – Surface and articles, however good in quality will have a long and functional

Life only when they are cleaned on regular basis.

d) Safety – Cleaning is done for safety against health hazards, fire hazards and slip hazards.

Types of soil:-

a) Dust - This is composed of loose particles deposited from the air. It contains both organic matter (Human and animal hair, dead skin cells, plants) and inorganic (sand, dry earth)

b) Dirt – This implies dust held together firmly by moisture or grease on rough surfaces.

c) Tarnish – This is a discoloration or deposition on a metal or alloy surface caused by chemical reaction with certain substances found in air, water and food stuffs. Different types of metals get tarnished when they are exposed to air (copper gets a greenish colour called ‘verdigris’).

d) Stain – This is discoloration caused on a hard or soft surface by a substance containing dyes, proteins, acids or alkalis. Stains cannot be removed by routine cleaning process. It must be removed as soon as they occur using solvents to dissolve it or an acid or alkaline to neutralize it.

Principles of cleaning:-

These are the basic rules to follow in any kind of cleaning activity, whatever the nature of surface or the soil

·         All soil should be removed

·         Soil should be removed without harming the surface being cleaned or the surrounding surfaces

·         The surface should be restored to its original state after the cleaning process

·         The simplest method should be tried first using the mildest cleaning agent

·         Cleaning should proceed from high to low wherever possible

·         When cleaning an area start with the cleaner surfaces and articles and then go to clean more heavily soiled areas so as to prevent the spread of soil dorm dirty to cleaner surfaces.

·         While wet cleaning or polishing the floor, the cleaner should walk backwards while cleaning in front of him

·         Suction cleaning should be preferred over sweeping wherever possible

·         Sweeping should be done before dusting and dusting before suction cleaning

·         Stains should be removed as soon as they occur

·         The cleaner should take all safety precautions while cleaning. In particular, cleaning agents & equipments should be stacked neatly to one side.

·         The cleaner should start cleaning from the farthest end of an area working towards the exit

Cleaning Procedures:-

MANUAL METHODS                                      :                                               MECHANICAL METHODS

a) Sweeping                                                                                                          a) Suction Cleaning

b) Dusting                                                                                                              b) Buffing

c) Damp Dusting                                                                                                  c) Polishing

d) Moping                                                                                                             d) Burnishing

e) Scrubbing                                                                                                          e) Scrubbing

f) Polishing                                                                                                            f) Stripping

Frequency of cleaning:

1) Daily task – These are routine operations carried out on a day-to-day basis by the cleaner. This includes the regular servicing of guest rooms, cleaning of bathrooms and toilets, suction cleaning of floors, dusting of furniture, etc.

2) Weekly Task – This term implies the task carried out on a weekly basis. This may include the work like polishing of metal, high dusting, dusting under the furniture, vacuum cleaning of upholstery, etc

3) Periodic – This is the task carried out on a monthly, quarterly, half yearly or on annual basis. Some of the usual periodic task in the hotel includes shampooing of carpets, washing of walls, polishing of floors, cleaning of chandeliers.

Organization of Cleaning:

a) Orthodox/ Conventional/Traditional cleaning – In this method of cleaning a GRA completes all the task in one guest room before going on to the next room in the section allotted to him/her. On an average a GRA may be required to clean 12-20 rooms in an 8 hr work day.

b) Block Cleaning – In this way of cleaning, the GRA moves from room to room and completes the same task in every room before returning to begin the cycle again for the net task on the list. This involves blocking several rooms at a time to form a ‘room section’ and usually more than one GRA will be at work in the section. For example, the GRA might make all the beds in a particular room section while other GRA cleans the toilet, and the third GRA replenishes the supplies.

c) Team Cleaning – In this method of cleaning, two or more people work together in the same area either the same task or a different task.

d) Deep Cleaning/Spring Cleaning – Deep cleaning refers to intensive cleaning schedule which is carried out quarterly, half yearly or on annual basis. Deep cleaning is essential at periodic interval. This task is complicated and time consuming also. So housekeeping department has top coordinate with maintenance and front office.

Spring cleaning task may include the following:

·         Shampooing carpets

·         Striping and polishing floors

·         Washing of ceiling and walls

·         Vacuum cleaning the mattress

·         Cleaning accessories such as lamp shades and picture frames

·         Thorough cleaning of bathroom including walls, floor tiles, fixtures and fittings.

Features that ease cleaning:

1) Smooth texture, straight, neat and smooth lines, medium toned colours are some of the designed features in the surface that makes the cleaning easier. Medium toned colours show less dirt than surfaces of darker or lighter shades.

2) Furniture should be so designed that cleaning under and behind them is easy. Furniture on castor wheels and glides are easily moveable making cleaning under and behind them easier. Bed frames should not have a raised edge.

3) Carpets should have the shorter pile for cleaning easier. Upholstery should have minimum of decorative features such as buttons, gathers, and ruffles.

4) Surfaces of solid wood are now being substituted by laminates of wood (sunmica), laminates of plastic (formica) for regular buffing and low maintenance.

5) Metals which require constant polishing should be avoided in the public areas or in the guest rooms. Example – brass becomes easily tarnished.


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