Why waterless film recycling is changing the economics of post-consumer plastics

Film recycling is one of the most challenging segments in plastics processing.

The com­bi­na­tion of con­t­a­m­i­na­tion, mois­ture, and low-den­si­ty mate­r­i­al cre­ates insta­bil­i­ty through­out the entire process chain.

Tra­di­tion­al wash­ing sys­tems attempt to solve this prob­lem but intro­duce new chal­lenges:

– high water con­sump­tion
– ener­gy-inten­sive dry­ing
– com­plex plant lay­outs
– ris­ing oper­at­ing costs

As a result, many recy­cling oper­a­tions face high OPEX and lim­it­ed scal­a­bil­i­ty.

A more advanced approach focus­es on sta­bi­liz­ing the mate­r­i­al before extru­sion.

This typically combines two key process steps:

1. Dry clean­ing (e.g. DRD)
   Removal of dust, sand and mois­ture with­out water
2. Mate­r­i­al den­si­fi­ca­tion and homog­e­niza­tion (Pre­Den­si­fi­er)
   – vol­ume reduc­tion
   – mois­ture reduc­tion
   – sta­ble and con­tin­u­ous feed­ing
   – ther­mal prepa­ra­tion of the mate­r­i­al

The result:

– more sta­ble process­es
– reduced down­time
– low­er oper­at­ing costs
– sim­pli­fied plant design

The indus­try is shift­ing from water-inten­sive clean­ing
towards inte­grat­ed process sta­bi­liza­tion.

And this shift will define com­pet­i­tive­ness in film recy­cling.