Garment to Garment Recycling System

The Garment to Garment Recycling System is a mini-production line used to process post-consumer garments into clean and wearable recycled garments. The system uses no water, no dyeing is needed.  The first system is located at The Mills, a revitalized art and cultural complex in Hong Kong.


It involves eight steps:

1) Sanitization
First, used garments are sanitized in an ozone chamber to remove microorganisms on the clothes.

2) Opening
The used garments are then shredded into their constituent yarns and fibre particles in a fibre opening machine.

3) Cleaning
Next, the shredded material is divided into clumps of fibre and impurities attached to the clumps are removed in a cleaning machine.

4) Carding
The clumps are then carded and aligned in the same orientation, and so become fibre web.

5) Drawing
The next step involves the fibre web being formed into slivers and a number of slivers being drawn together to form straightened units with improved evenness.

6) Rotor Spinning
A number of these drawn slivers are fed into a high-speed rotor and spun into single yarn.

7) Doubling & Twisting
Two single yarns are then combined and this double yarn is fed into a twister machine, which converts the yarn into ply yarn to enhance strength and balance torque.

8) Knitting
Finally, either new garments are made using a whole garment knitting machine, or knitted fabrics are produced by a flatbed knitting machine.

Technological breakthrough

The system design is compact and easily installed. The entire process takes place in a standard 40-foot container. With its anti-vibration, noise- and dust-controlled design, the production line minimizes noise and disruption to nearby businesses, and so is configured for operational compatibility within community spaces such as shopping malls. The process is waterless, which adds significantly to the system’s environmentally friendly properties.

These features mean that the system blueprint can be readily adopted by interested parties globally such as fashion brands or retailers.

Licensing Details

For more details, please contact us. (Email:; Tel: (852) 2627 0180)


Award Name
Gold Medal in the 47th International Exhibition of Inventions of Geneva (2019)
Red Dot Award: Product Design 2019
Asia International Innovative Invention Award - Gold Award
The 2019 Innovation by Design Awards - Finalist - Retail Environment
Related ITF project
Research Start Date 2018-03-01
IP Number