Spinning pilot

Spinning pilot

MoRe has an in-house spinning pilot which can produce directly spun fibres, i.e. viscose filaments, for evaluation of process and product characteristics from raw material to dissolving cellulose and further to viscose threads. 

By evaluating the spinning process as well as the thread's characteristics, knowledge is gathered regarding the dissolving cellulose for further development to technical or textile viscose. The pilot is run by MoRe and owned by Processum Biorefinery Initiative.

MoRe already has pilot equipment for production of viscose solutions. The combination of these two pilot equipments covers the whole chain from dissolving cellulose to the finished thread. As MoRe has a complete chain of pilot equipments right from logs or wood chips to bleached pulp, development trials can be made starting with wood chips and ending up with viscose thread.

Capacity: The spinning pilot is a batch type pilot for viscose solutions between 140 and 220 ml.

The thread is shaped when the viscose solution is pressed with a constant speed through a nozzle placed in a bath consisting of different chemicals, depending on the viscose process to be simulated. The thread is then rolled between two drums which have different speeds, resulting in a stretched thread. The produced thread is collected on one of these drums and later cut into ca 4 cm long pieces. The pieces are washed and bleached and finally dried. After drying the characteristics are analysed.

The viscose solution to be analysed can either be delivered from the viscose process in question or produced from the corresponding specialty cellulose in MoRe's viscose pilot.

For more information, please contact
Elly Westberg, +46 070-268 67 81, E-mail