Innovation in industrial recycling of post-consumer jeans

Project Denim to Infinity

During 2021 and 2022 Infinit Denim has developed an innovation project in the industrial recycling of post-consumer jeans (PCD) to create new yarns and fabrics for its collections. 

Our goal has been to use post-consumer denim (PCD) as a raw material to create new fabrics.We have aimed to use post-consumer denim (PCD) as a raw material to create new fabrics with environmental footprint and excellent in terms of quality and durability.

One of the requirements for the creation of fibers was not to use fibers of mineral origin, such as polyester. We wanted 100% vegetable fibers and preferably organically grown. 


circular knitted trousers

For the development of this project we have applied for a grant from the Waste Agency of Catalonia, which has allowed us to carry out the entire research and development process prior to industrial production.


Lhe spinning tests were carried out at the Polytechnic University of Catalonia.

After a first stage of research, three fibers have been chosen for three different yarns, each with different characteristics and utilities.

Kapok thread

The first yarn developed has been a kapok yarn with composition: 10% DPC (post-consumer denim)., 20% kapok and 70% REFIBRA.

Kapok is obtained from a tree whose fruits contain soft, light and silky fibers that look like cotton but by its nature does not need fertilizers or irrigation. Despite being grown far from Spain, it is a material with a minimal environmental footprint in its production, being impossible to balance with other fibers grown closer to home.

Kapok yarn has been used in garments that sought softness and lightness such as tricot garments.

Hemp Yarn

The second yarn developed has been hemp hemp.The second yarn developed was hemp hemp yarn, with 25% DPC, 25% hemp and 50% REFIBRA.

Hemp, with its fast-growing cultivation, does not require herbicides or pesticides, and its sowing hardly needs any water, so the manufacturing process of its fabric uses up to four times less water than that of cotton. The yarns obtained with these fibers are more resistant and durable compared to cotton. They are fibers that aid breathability and insulation, which is why they have been used for winter tricot garments that were intended to be warmer and thicker, and for the limited edition production of our first denim fabric. 

Refiber is the result of a pioneering technology that involves recycling a substantial proportion of pre-consumer cotton waste with wood pulp, where the raw material is transformed to produce new virgin TENCEL™ Lyocell fibers.

Ecovero Thread

The third yarn is the Ecovero yarn. A yarn composed of 25% recycled fiber from post-consumer denim from post-consumer jeans and 75% ECOVERO. EcoVero is a type of viscose made from sustainable wood from controlled sources. Ecovero is the basic component of our winter "flat" fabric and with which we create all the "gray and color" of the 2023 summer and winter collection.

You can see the results of this work in the new SS23 collection.


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