Rayon Fabrics cooking with Na2CO3

This cooking process aims to remove natural impurities in the form of fats, oils, candles and others contained in the fabric. so as to facilitate the process of further improvement.

Rayon and synthetic fiber is easy to clean fibers, so that cooking is using detergent or a weak alkali.
Cooking Rayon, Polyamida, and Polyester can be done in a solution of 1-2 grams / liter of soda ash and 1-2 ml / liter of detergent at a temperature of 70 Celsius for 1 hour. then rinsed with cold water.
For acetate rayon fibers should be used 1-2 detergents and 1.5 ml / liter amonia at a temperature no more than 70 Celsius for 20-30 minutes. Other alkali consumption should be avoided because it can happen hidrolisa and the fiber can cause damage.


Laboratory test

Tools and materials
- Gray cloth
- Water
- Soda ash
- Tepol / wetting agent
- Scales
- Glass beaker
- Stick
- Measuring pipette
- Measuring cup
- Thermometer
- Tool Heaters

recipes
- Na2CO3 = 2 grams / liter
- Wetting agent / tepol = 2 cc / liter
- Temperature = 70
- Time = 1 hour
- Vlot = 1:30

substance function
- Na2CO3 = to clean and remove dirt found on the surface of the fabric
- Wetting agent = to reduce tension on the fabric surface
- Water = to dissolve substances

job step
1. prepare equipment and materials
2. fabric weighing
3. calculate the water needs and other substances in accordance with the prescribed
4. dissolve substances that have been calculated into the glass beaker
5. heating the solution to boiling and then put the cloth into the solution and stirring for 1 hour
6. took the cloth from the solution after processing for 1 hour
7. fabric drained and washed with cold water
8. after washing, the fabric is dried with direct sunlight
9. calculate weight fabric