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Laundry an housekeeper perspective

This document provides information about laundry, including: - Laundry involves both art and science through skills, techniques, water, chemicals and machines. - There are five types of laundries - institutional, commercial, rental, retail, and laundromats. - Key elements of the laundry process are mechanical action, water, chemicals, temperature, and time. - Main equipment includes washers, dryers, ironing machines. Chemicals include detergents, bleaches, spot removers. The process involves washing, drying, pressing/ironing.

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Definition Understanding Laundry Types Load study List of Laundry Equipments Category Process Elements Wash wheel Wash Cycle Chemicals Spotting chemicals Wash formula Wash steps Laundry machines Fabrics Linen Basics Common Laundry Symbols
Definition Laundry is an art and a science. It is an art because it requires a certain degree of skill or perfection in an individual to complete the job. It is a science because it involves the use of water, chemicals, machines and modern techniques which is based on scientific principles.
Types of Laundry There are five types of laundry 1. Institutional laundry or in house laundry such as hotel and hospital laundry or any laundry which is on premise. Such laundry’s may or may not cater to customers other than to those in the institutions in which they are housed. These laundry’s are usually spread on an area measuring more than 2000 sq.ft and make uses of industrial laundry equipment. For e.g. Hyatt Regency Laundry, Bombay Hospital laundry. 2. Commercial laundry or stand alone laundry are establishment which caters to anyone and everyone purely on commercial terms and conditions. These laundry’s are slightly bigger than the institutional laundry as they cater to more than one client at a time. For e.g. Akash Laundry, Leach and Weborny, Bandbox etc.,
3. Rental laundry are laundry’s that not only cleans the linens but also supplies the linens on rental basis to hotels and other institutions at a nominal charge. Such kind of laundry exists mostly in Europe and the US. 4. Retail laundry are laundry’s that are very small in size and processes only personal garments or customer clothing's. For e.g. Three star laundry, Beauty Arts etc., 5. Laundromat or coin operated laundry are laundry’s with washing and drying facilities which is normally operated by the customer themselves. This is a small set up usually in a mall or a petrol pump where people can walk in and wash their dirty linens. One example in India is the IFB Laundromat located at several petrol station in Mumbai.
Laundry capacity For an housekeeper it is very important to understand the load generations in the hotel based on which the laundry size can be determined. Therefore one must know the following: 1. Washing capacity 2. Drying capacity (bath linens, uniform& guest laundry) 3. Pressing capacity (staff uniforms, guest laundry) 4. Ironing capacity (bed linens, f&b linens)
Washing capacity: The size of any in house laundry is directly proportional to the number of rooms in that hotel. Therefore, if an Hotel is having 300 rooms then we can do the following calculations. Ttl no. of rooms x load generation/room = total washing capacity 300rooms x 10kgs = 3000kgs per day Please note that loads generations per room includes everything such as your room linens, f&b linens, staff uniforms and also your guest laundry. 10kgs per room is an international benchmark for determining the size of an in house laundry. Once you have identified your washing capacity, you can now easily determined your drying, pressing and ironing capacity.
Drying capacity: 60% of the washing capacity. Pressing capacity: 20% of the washing capacity. Ironing capacity: 40% of the washing capacity. Example: Hotel in house laundry is operated on a 24 hour basis. Total load per day = 3000 kgs (100% occupancy) Average wash cycle = 1.20 hrs Actual washing hours in a day = 24/1.20 hrs = 20 hrs Thus washing capacity required per hour = 3000kgs/20hrs 150kgs per hour The Drying Capacity required per hour (60% of washing capacity) 90kgs per hour The pressing capacity required per hour (20% of washing capacity) 30kgs per hour or 30kgs x 2pcs(average 2pcs/kgs) = 60pcs per hour The ironing capacity required per hour (40% of washing capacity) 60kgs per hour or 60kgs x 3.5pcs(average 3.5pcs/kgs) = 210 pcs per hour
List of Laundry Equipments Based on the above the preceding figures laundry equipment can be determined. Washer Extractors: 55 kgs (2nos) + 25 kgs (1 no) + 10 kgs (1no) Tumbler Dryers: 35kgs (2nos) + 20 kgs (1no) Dry Clean Machine: 12-15 kgs (1 no) Flat Work Ironer: 3000mm x 800mm x 1 roll chest heated (1 no) Steam Utility legger: 2 nos Cotton Utility legger: 2 nos Cuff & Collar: 1 no
List of Laundry Equipments (contd) Form Finisher: 1 no Spotting Board: 1 no Ironing Board: 1 no Marking Machine: 1 no Wet Linen Trolleys: 6 nos Dry Linen Trolleys: 6 nos Folding Tables: 4 nos Mobile Linen Trolley: 4 nos Flapping Table: 2 nos Weighing Scale: 1 no Double Bowl Sink: 1 no
Categories of laundry Laundry job can be categorize into three 1. Flat 2. Plush 3. Form Flat category : All room linens, F&B linens or guest laundry that are flat such as bed sheets, pillow covers, table clothes, napkins, etc., is washed and ironed without drying. Plush category : All bath linens such as towels, bathrobes, etc., that are washed, dried and folded and need not be ironed. Form category : All staff uniforms and guest laundry which has got a shape and form such as trousers, shirts, dresses which is washed, dried and pressed.
Laundry Process The following are the main process in a laundry job. 1. Receiving 2. Registering 3. Marking 4. Segregation and Weighting 5. Pre-spotting 6. Wetcleaning/Drycleaning 7. Post spotting 8. Drying 9. Pressing/ironing 10. Checking 11. Sorting and packing 12. Billing 13. Delivering
Laundry elements The important elements for a successful laundry wash process are 1. Mechanical Action 2. Water 3. Chemicals 4. Temperature 5. Time
Wash wheel Temperature Chemical Ideal temperature will Industrial washing depend upon the requires 9 -11 ph. fabric and soilage. Water Time Ideal water condition It will depend upon would be hardness the fabric and 60ppm and upto 100 tds soilage.
Laundry Chemicals Main laundry chemicals are 1. Emulsifier (Lauryl, octyl, nonyl phenol etoxylate alcohol) 2. Detergent (Sodium silicate, Acid Slurry, Sodium bicarbonate, Sodium sulphate) 3. Alkali (Caustic Soda, Soda Ash) 4. Bleach (Sodium hypochlorite, Sodium Hydrosulphide, Hydrogen peroxide, Sodium perborate) 5. Neutralizer (Sodium bisulphite, ) 6. Softener (Fatty acids, Silicone) 7. Solvents (Perchloroethylene, Trichloroethylene) 8. Enzymes (Amylase, Lipase, Proteas, Cellulase) Reputed brand in laundry chemicals are Johnson Diversey, Ecolab, Rexodan and Minikem (Indian brand)
Laundry spotting chemicals Laundry spotting chemicals are used based on the nature of the stain, fabric and colour. Aqueous and Non-aqueous Aqueous spotting chemicals are used for water based stains such as blood, food, rust, dyes, earth etc., For e.g. ammonia, hydroflouric acid, bleach, oxalic acid, acetic acid, sodium hydrosulphide, sodium thiosulphate. Non-aqueous spotting chemicals are used for oil based stains such as ink, grease, paints, lip-sticks etc., For e.g. amyl acetate, carbon tetrachloride, thinner and other forms of solvent. Reputed brands available in the market are A.L.Wilson, Bussats, Rexodan, Ecolab. In India most of the chemicals are home made such as Green mixture, BSR, HF, Cuff&Collar, Hydro powder etc.,
Typical washing formula While making any washing formula one needs to consider the quantity, soilage, fabric content and the colour. A simple F&B linens wash formula would consists of the following steps. 1. Pre wash/Emulsifications 2. Main wash 3. Bleach 4. Rinse 1 5. Rinse 2 6. Neutralizing/Sour 7. Starching 8. Final Extract
Wash steps Steps Time Water Level Temp Chem Process Prewash 5 min Warm Medium 40 C Clax 200s Emulsifying Main wash 12 min Hot Medium 80 C Clax 100 OB Washing Clax Build Bleach 6 min Warm Medium 45 C Chlorine Bleaching Bleach Rinse 1 3 min Cold High n.a. n.a. Rinsing Rinse 2 2 min Cold High n.a. n.a. Rinsing Sour 5 min Cold Medium n.a. Clax Neutralizin neutralizer g Starch 4 min Warm Medium 40 C Maize starch Starching powder Extract 6 min n.a. n.a. n.a. n.a. Extracting
Laundry Equipments The most commonly used laundry machines are 1. Washer/Extractor Auxiliary equipment 2. Dryers 1. Boiler 3. Dry clean machine 2. Compressors 4. Marking Machine 3. Dry set vacuum 5. Spotting machine 6. Cuff & Collar press Supporting Plant 7. Body & Bosom press 1. Water softening/RO plant 8. Mushroom press 2. Effluent treatment plant 9. Cotton utility legger 10. Steam utility legger Transporting 11. Form finisher 1. Wet Linen Trolleys 12. Touch up board 2. Dry Linen Trolleys 12. Flat work ironer 3. Mobile Linen Trolleys 13. Bed sheet folder 4. Folding Tables 14. Bagging machine 5. Linen Flapping Trolley 15. Shirt Body Unit 6. Pigeon Holes Rack 16. Towel Folder 17. Uniform conveyor
Fabrics For a successful laundry operation it is very important to have a good knowledge about the fabrics because that is the main responsibility of the laundry. There are various kinds of fabrics that are used in the hotels for different purposes such as Linens - used for making especially room linens such as bed sheets, pillow covers, duvet covers etc., This is mostly derive from the flax plant. Cotton - used for making towels and especially F&B linens such as table cloths, dinner napkins, trolley covers etc., This is derive from the cotton plant.
Blend – These fabrics are mixture of synthetic and natural or two different kinds of synthetic yarns used mainly for stitching uniforms, upholstery and drapery. For e.g. polycotton, terrycotton, polyviscose, etc., Classifications of fabrics Fabrics are classified into the following Natural – Silk, Cotton, Wool, Linen, Jute Synthetic/man-made – Polyester, Nylon, Spandex, Regenerated – Viscose
Linen Basics It is important to know the basic parameters while selecting any linens for use. Bed linen – 1. Count This determine the fineness of the fabric. The higher the count, the finer the fabric. The acceptable standard in a star hotel is 40/40. 2. Reed pick (weft) This determine the strength and the stability of the fabric. The higher the reed pick better the quality. The acceptable standard is above 300 reed pick per square inch for bed sheets and around 250 for f&b linens. Here it is important that the threads counts are equal vertically and horizontally to maintain the dimensional stability.
Toweling- Toweling fabrics are specially made as it consists of a base clothes and a piled surface. Therefore, a good toweling cloth will have the following parameters. 2. Base cloth The base cloth must have a minimum reed pick measuring 115 to 118 counts per square inch. 3. Piles length The piles length must be minimum 5.2 to 5.5 mm in height. 4. GSM It is also know as grams per sq.meter. Higher the GSM thicker the towel. Hotels normally use 600 to 650 GSM. For bath mat the GSM will be slightly higher around 800 GSM.
Common Laundry Symbols 60c Cl
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