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Department of Bioproducts and Biosystems

Textile Chemistry

Our goal in the Textile Chemistry group is to develop novel chemical treatments and technologies with lower environmental impacts.
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Photo: Aalto University

The huge global textile market is increasing steadily by increasing the population and growing demand. The textile industry is the main source of income in some countries and plays a vital role in the economy.

CHEM_BIO_natural blue dye

The high profitability of the textile industry often comes at the price of polluting the environment because of the remaining chemicals in wastewater.

The motivation for developing green and sustainable textile processes is to promote the bioeconomy of Finland by working on the whole value chain of recently developed man-made cellulose fibers in the country and expand their portfolio.

Highlights

A group of people wearing yellow and orange high-visibility vests stand outside an office building with Valmet signage.

TexirC project meeting held at Valmet’s Fiber Technology Center

August 18, 2025 – The results meeting of the TexirC project took place at Valmet’s Fiber Technology Center.

News
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Annual meeting of textile chemistry group held

August 8, 2025 – The Textile Chemistry Group convened its Annual Meeting on Friday, August 8, bringing together researchers, doctoral candidates, master’s students, and interns to share their latest work in advancing sustainable textile technologies. The meeting was inaugurated and chaired by Professor Ali Tehrani, Head of the Textile Chemistry Group, who welcomed all members and emphasized the importance of collaborative research in shaping the future of the textile industry.

News
Diagram showing textile waste converted to bleached fabric through chemical treatment and then to dyed recycled fabric.

Color Stripping of Textile Waste

Developing an efficient color stripping process to remove reactive dyes from textile waste, enhancing fabric recyclability and environmental safety.

Department of Bioproducts and Biosystems
Textile Chemistry research group

Making textiles greener, safer, and cooler

Professor Ali Tehrani and his research group focus on something very familiar to us all – textiles.

News

Research areas and team members

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Textile chemistry research focuses

Research areas of the textile chemistry group.

Department of Bioproducts and Biosystems
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Textile chemistry team members

Textile chemistry team members

Department of Bioproducts and Biosystems

Current projects:

TexirC

TexirC

The TexirC project will support Finnish companies in their efforts to create a more sustainable textile industry.

White text 'BIOSUSTEX' on a green background, with each syllable stacked vertically.

BioSusTex

Towards Absolute safe and sustainable biobased textile

Department of Bioproducts and Biosystems
Logo with green and blue swooshes, text: SURFTOGREEN Bio - Based Surfactants

SurfToGreen

Bio-based sustainable SURFACTANTS TO Foster GREEN industry

Department of Bioproducts and Biosystems
Illustration showing the cycle of bio dyes from forest and agricultural waste to durable textile and degradation.

Bio-Dyes

Developing Profitable Textile Bio-Dyes from Agroforestry Waste

Department of Bioproducts and Biosystems
Smart jacket with heating, waterproof, sensors, monitor, light, control. Conductive layers and biobased textile elements.

SuperTextil

Multifunctional Bio-based Textiles

Department of Bioproducts and Biosystems
Illustration of fabric showcasing biocolour, UV protection, moisture management, and antibacterial properties.

PEFF

Plant Based Molecules for Enhancing Functional Properties of Cellulose Fiber Materials

Department of Bioproducts and Biosystems
Logo with a green globe, leaf, and recycling symbol above the text CIMANET Doctoral Education Network

SuperTextil

Multifunctional Bio-based Textiles

Department of Bioproducts and Biosystems

Completed projects:

SUSTAFIT logo with a green graphic and the slogan 'Sustainable fit-for-purpose nonwovens'

SUSTAFIT

Sustainable fit-for-purpose nonwovens is a research project that responds to the need of Finnish industry to improve competitiveness and expand opportunities in the rapidly growing market for sustainable nonwovens.

Department of Bioproducts and Biosystems
Illustration of fabric showcasing biocolour, UV protection, moisture management, and antibacterial properties.

PEFF

Plant Based Molecules for Enhancing Functional Properties of Cellulose Fiber Materials

Department of Bioproducts and Biosystems
Three cones of thread in gold, pink, and light blue with a blurred background of white fabric and a hand.

FFColor

The goal of the FinnFiberColor project is to develop solutions for the challenges that man-made cellulose fiber (MMCF) technologies face.

Department of Bioproducts and Biosystems
Diagram showing cellulose activation (step 1) and functionalization (step 2) with chemical structures and groups.

Cellulose Functionalization

This project aims to develop a modular one-/two-step platform that pre-activates cellulose with triazinium salts and uses N-heterocyclic leaving groups to graft dyes, amino acids, and biopolymers—enabling durable colouration and functional coatings.

Department of Bioproducts and Biosystems

Events

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Incoming events

events and activities

Department of Bioproducts and Biosystems
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Past events

Events of textile chemistry group

Department of Bioproducts and Biosystems

Related content:

Isla’s Research Achievements Celebration

On Thursday, 28 August, Isla Lizett Rodríguez Banda, a summer intern in the Textile Chemistry Group, presented the results of her research work. Her work explored the use of solvents for color stripping of disperse dye from polyester fabrics.

A group of people having a meeting around a long wooden table with a presentation on a large screen.

Celebration of Fernanda’s Summer Internship

On 15 August, Fernanda Rivera Ledesma, a summer intern in the Textile Chemistry Group, presented the results of her research. Her work focused on color stripping of vat-dyed denim fabrics using oxidizing bleaching agents.

A group of people are seated around a long table, attentively watching a presentation on a large screen.

Nurturing the passion for research - Interviewing Associate Professor Ali Tehrani

Associate professor Ali Tehrani, who works at Aalto University's School of Chemical Engineering Bioproducts and Biosystems Department, has an impressive background in textile research already before joining Aalto. And he also enjoys guiding and supporting his students in their research and careers.

Associate Professor Ali Tehrani standing in front of blooming trees.

Making textiles greener, safer, and cooler

Professor Ali Tehrani and his research group focus on something very familiar to us all – textiles.

Textile Chemistry research group

Sustainable and environmentally friendly nonwoven materials

Olamide working on developing sustainable and environmentally friendly nonwovens from recycled and bio-based man-made cellulosic fibres, utilizing nonwoven technologies such as needle-punching, air-through bonding, and wet-laid processes.

Person wearing a white lab coat and working with a machine in a laboratory or industrial setting.

TexirC Project Meeting at Mirka

The Mirka Karis factory recently hosted a key meeting for the TexirC project, which is tackling four major challenges in textile recycling: colour stripping, fibre separation, compositional analysis, and the de/repolymerization of synthetic fibres.

A group of people wearing yellow safety vests standing in an office with red flooring and a wall poster.

Research fields and supervising professors (School of Chemical Engineering)

Research field is an area of academic research in which the school has agreed to provide doctoral education. The Aalto Doctoral Programme in Chemical Engineering offers doctoral education in 6 research fields. Each doctoral student is appointed a supervising professor who represents the research field approved for the student.

A-logo_around_Campus_12-6-2020_photo_Mikko_Raskinen_

Latest publications:

Babak Abdi, Hossein Baniasadi, Ali Tarhini, Ali Tehrani-Bagha 2025 Advanced Materials Technologies

Shaharia Ahmed, Md Reazuddin Repon, Arnob Dhar Pranta, Aminoddin Haji, Jehan Y. Al-Humaidi, Mohammed M. Rahman 2025 Polymer Engineering and Science

Ashraful Alam Aulia, Md Reazuddin Repon, Latifa Noushin, Md Shalit Hasan, Pranto Biswas, Meherin Sultana 2025 Sustainable Coloration Techniques in Textiles

Olamide Badara, Virpi Rämö, Marja Rissanen, Ali Tehrani-Bagha 2025 Textile Research Journal

Hossein Baniasadi, Afsoon Farzan, Maryam Roza Yazdani McCord, Pedro E.S. Silva, Babak Abdi, Zoe Paganelli, Jaana Vapaavuori, Ali Tehrani, Jukka Niskanen 2025 International Journal of Biological Macromolecules

Md Nazif Hasan Chowdhury, Arnob Dhar Pranta, Md Reazuddin Repon, Tonmoy Saha, Joyjit Ghosh 2025 Nano Select

Tanvir Ahmed Chowdhury, Jahirul Islam Khandaker, Mohammad Abdul Gafur, Md. Reazuddin Repon, Md Kamrul Islam, Alamgir Hossain, Swaraz Mollick 2025 Materials Research Innovations

Tanvir Ahmed Chowdhury, Jahirul Islam Khandaker, Mohammad Abdul Gafur, Md Reazuddin Repon, Alamgir Hossain, Md Kamrul Islam, Md Abdullah 2025 ACS Omega

Hermela Ejegu, Mengdi Xu, Charles Kumah, Biruk Fentahun, Esubalew Kasaw Gebeyehu, Yan Qingshuai, Guangniao Xu, Hua Shen 2025 Materials Today Communications

Esubalew Kasaw Gebeyehu, Rekha Shresth, Tonmoy Saha, Jenni Tienaho, Ulla Jauhiainen, Ali Amin Tarhini, Ali Reza Tehrani-Bagha 2025 Bioresources and Bioprocessing
More information on our research in the Aalto research portal.
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