Cleaner Production in a Textile Company Egypt Prior to 1995 Full scale

MANUFACTURE OF TEXTILES # 19

Background:

BTM, Bishara Textiles Manufacturing Co., is located in the industrial park Tenth of Ramadan City, a suburb of Cairo, Egypt. The company produces fashion garments for the men's and women's wear market. These garments are made from fabrics of wool, cotton, cotton/polyester, wool/acrylic and rayon. 75% of production is for the domestic market and approximately 25% for export.

The main unit operations are:

Fabric Preparation:

Plaiting : The greige cloth is inspected and sewn together in preparation for the next operation.
Bleaching : The cloth travels through the preparation line twice. In the first process it is desized, washed and dried. In the second run it is bleached, washed and dried.
Mercerizing : Only the cotton fabrics are mercerized.The cloth is immersed in 20 to 30% caustic solution for a period of time and then washed clean.

Printing and Dyeing:

Flat bed printing
Roller bed printing
Jet dyeing
Jigger dyeing
Pad batch dyeing

Treatment and Drying:

Drying : After being dyed or printed, the cloth is dried on a stenter frame. Hot air is blown on the cloth as it travels in open width through the machine. Some fabrics are dried on an air lay-dryer.
Singeing : Some styles of cloth are passed over a gasoline flame to remove excess fibers from the cloth.
Washing : Printed cloth and pad batch dyed cloth must be washed. A rope washer with a pad and three washing units utilized for the operation. The cloth is then dried on are one of the stenter frames.
Finishing : The cloth is padded with a finish material such as a softener to enhance the feel of the cloth, and then dried on the tenter.
Sanforizing : Cotton fabrics must be sanforized to improve the shrinkage characteristics when garments are washed. The fabrics are sprayed with water and passed through a rubber blanket pressing against a hot cylinder.
Inspection : The cloth is inspected. Defects are removed before the cloth is cut and sewn into garments.

Plant Services:

Steam production : Steam is produced by an 8-ton-per-hour fire tube boiler and a 4-ton-per-hour water tube marine boiler. Also two boilers heat Dowtherm used for heating two Bruckner drying frames.
Water treatment : Water is purchased and is softened for use in the wet processing areas. Further treatment is provided for the boiler water.

Cleaner Production Principle:

Process modification, Housekeeping,

Cleaner Production Application:

The diagnostic assessment identified 9 pollution prevention options:

  1. Recycle the overflow from steam boxes in the mercerization line for use in the third caustic soda bath.
  2. Set up countercurrent flow for the rope washers.
  3. Install a steamer after the pad on the preparation line.
  4. Install a vacuum extractor in front of the Bruckner frame.
  5. Repair steam leaks throughout the plant.
  6. Convert the fuel source for the singer from gasoline to natural gas.
  7. Insulate Dowtherm lines in the dye house.
  8. Return the condensate from jet dyeing machines to the boiler.
  9. Insulate steam pipes in the boiler house.

Options 3 and 6 are planned for implementation. Option 4 will not be implemented, and all remaining options were implemented.

Environmental and Economic Benefits:

Improved environmental conditions and a reduction in fire hazards.
An 85% reduction in water consumption, from 60 litres to 9.5 liters per kg of fabric produced.
An 18% reduction in fuel consumption (no. 6 fuel oil).

The diagnostic assessment identified 9 pollution prevention actions saving BTM at least LE 315,000 in the first year for a total investment of about LE281,000.

Seven of these actions (1, 2, 5-9) yield savings of about LE 90,000 for cost of about LE 7,000. The majority of the total savings come from 2 recommendations (3, 4) costing about LE 200,000 and LE 75,000 having payback periods of 1 and 4 years respectively.

Constraints:

No constraints reported

Contacts:

Dr. Louis BESHARA, Chairman BTM Co.
Second Industrial Zone, B 2 Tenth of Ramadan City
E1 Sharkia, EGYPT
Tel : + 201 5 362750, 362751, 362752; Fax : + 201 5 362753

Review Status:

This case study was submitted to UNEP IE by ECOMED, Agency for Sustainable Development of the Mediterranean Via di Porta Lavernale, 26, 00153 Roma, Italy, Tel : +39 6 5783564, Fax : +39 6 5781448.

It was reviewed by UNEP IE November, 1995. It has subsequently undergone a formal technical review in September 1998 by Dr. Prasad Modak, Environmental Management Centre, Mumbai, India.