O.D Batch Mixer, Softener Machine and Spreader Machine

How to make Emulsions? (O.D Batch Mixer)

Procedure of emulsion preparation

• First emulsifier and equal quantity of mineral oil are place in the mixing tank and mixed until a jelly like substance is formed.
• Then the remaining oil is added and slowly heated and mixed for 35 minutes
• Then required amount of water is add and mixed for about 20 minutes until required form is achieved.
• After that the emulsion is transferred to the reserve tank and kept there for 20 minutes.
• Then it is transferred to the softener or spreader machines.

Softener Machine

These machines consist of 24 to 64 pairs of rollers and these are spirally fluted and jute goes through them. When the jute passes one third of the rollers then the emulsion is added with the spray. Then through the delivery rollers the jute is passed on to the delivery sheet.

Machine specification

Length: 16 feet

Motor rpm: 715 revolutions per minute

Surface speed of feed roller: 83.84 inch per minute

Surface speed of fluted roller: 93.86 inch per minute

Surface speed of delivery roller: 103.4 inch per minute

Spreader Machine

The jute fibres first enter through the feed rollers on to the slow chain. This contains pins or grill bars which have a combing action on the jute. Then the jute moves to the fast chain which moves 10 to 12 times faster than the slow chain. Here combing action occurs and also due to the speed variations the fibres get a draft of 10. Then the jute moves to the conductor plate where it is sprayed with emulsion and at last it is rolled up by the roll former.