colouring material การใช้

• Schunck started his extensive investigations into the colouring materials in madder in 1846.
• The root produces a fine red colouring material which has been used as a dye in the Mediterranean region since antiquity.
• Unfortunately, plaque being transparent, cannot be seen easily so you may need to use a colouring material called erythrocine dye obtainable from the pharmacies.
• Processing food for sale produces wastes generated from cooking which are often rich in plant organic material and may also contain salt, flavourings, colouring material and acids or alkali.
• Research into the colouring materials found in the fungus by H . Lockett and R . Edwards at Bradford University gave name to three purple pigments as two bulgarhodins and bulgarein.
• There are NO groups for children at this service, although children are welcome to attend and there will be toys and colouring materials etc . at the back of church.
• The government was also asked to monitor the content in consumer products like paint on toys, colouring material and stationery, and also places of work where the material are made.