Home / Knowledge / News / Textiles / Fraunhofer Institute using chitin in textile processing
Fraunhofer Institute using chitin in textile processing
12
Jun '18
Courtesy: Fraunhofer Institute
Courtesy: Fraunhofer Institute
The Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB is working on biobased alternatives for chemicals often used in textile processing. The Institute is trying to utilise side streams from the animal feed manufacture for producing chitosan, which is used as a sizing agent in the processing of yarns or for functionalisation of textiles.

Fraunhofer IGB is presenting its work at the ACHEMA trade fair in Frankfurt am Main.

Chitin is a major component of insect skins and shells; large quantities of it result from the production of animal feed – ever since the feed industry has increasingly relied on insects as protein suppliers. Insects have the advantage that they reproduce quickly and can be bred cheaply on low-value substrates. This makes them a sustainable source of protein. So far, soya has been used for this purpose, but its cultivation is in direct competition with food production. Insect proteins have already been approved for poultry and pig feed. Since summer 2017, they can also be used as feeding stuff for fish. It is therefore to be expected that the use of insect proteins will become even more important in the future.

The feed industry is focused on proteins, but the skins and shells of insects remain as a waste product. If they can also be utilised, this contributes to the sustainability and economic efficiency of the overall feed production. The potential is enormous: in the course of their development, the larvae of the insects shed their skins several times. The remaining molting products consist up to 40 per cent of chitin.

In the joint project “ChitoTex”, the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB is investigating how insect chitin from animal feed production can be processed to supply biobased chemicals for textile processing. “For a long time now, we have been working on the development of processes for the recycling of residual and waste materials and therefore have the necessary expertise,” explains Dr. Susanne Zibek, who heads the research area of industrial biotechnology at the Institute.

At first, the Fraunhofer researchers developed a purification process to separate chitin from further components of the insect skins such as proteins and minerals. “We are investigating various ways of deacetylating chitin to produce chitosan,” Zibek explains. "With an enzyme screening for example, we search for suitable enzymes for the deacetylation process".

Due to its ability to form films, chitosan can be used as a sizing agent. This reduces friction in weaving machines and prevents the roughening or breaking of yarns in the weaving process; after that the sizing agent is either washed out again or remains on the yarn. In either case, biobased and natural alternatives to synthetic agents are beneficial for man and environment.

The second possible application is the functionalisation of textiles, that is the finishing of textile fabrics with specific properties. “For example, we want to use the functional amino group to link hydrophobic molecules with the chitosan. Water-repellent properties can be achieved when applied to textiles.” Until now, environmentally harmful fluorocarbons are widely used for the hydrophobic finishing of outdoor textiles. (SV)

Fibre2Fashion News Desk – India


Must ReadView All

Courtesy: Businesswire/PrimaLoft

Textiles | On 18th Nov 2018

PrimaLoft unveils PrimaLoft Bio Performance Fabric

PrimaLoft, a leader in advanced material technology, has unveiled...

Higher sales and earnings at Macy's in Q3FY18

Fashion | On 18th Nov 2018

Higher sales and earnings at Macy's in Q3FY18

Higher sales and earnings were recorded at Macy’s, one of the premier ...

Courtesy: Amazon

Apparel/Garments | On 18th Nov 2018

Amazon's new headquarters in New York City, Arlington

Amazon is setting up two new headquarters, one in New York City and...

Interviews View All

Varinder Singh Jawanda, Trendy Bharat

Varinder Singh Jawanda
Trendy Bharat

Sizing and fitting issues are inherent problems for companies expanding...

Victor Chao, Esmetex

Victor Chao
Esmetex

‘In future, clothing boundary lines will become increasingly blurred.’

Top executives, Textile industry

Top executives
Textile industry

Denimsandjeans India 2018

Franco Ravazzi,

Franco Ravazzi

Italy-based Tessimenti E Orditi Tinti (T.O.T SRL) specialises in stocking...

Harmeet Singh,

Harmeet Singh

New Delhi-based Jogindra Industries Private Limited provides an assortment ...

Luciano Sardini,

Luciano Sardini

A consolidated reality in Italy and internationally, IMA Spa is well-known ...

Giulio Cesareo, Directa Plus SpA

Giulio Cesareo
Directa Plus SpA

Established in 2005, Direct Plus SpA, is one of the largest producers and...

Eamonn Tighe, Nature Works LLC

Eamonn Tighe
Nature Works LLC

Eamonn Tighe, Fibres and Nonwovens - Business Development Manager of...

Melissa Tate, University of New South Wales

Melissa Tate
University of New South Wales

<div><div><div><div><b>Melissa Tate</b>, a well-known scientist currently...

Varsha Wadhwa, VW

Varsha Wadhwa
VW

Coming from a family that ran a business of jute and linen mills since...

Anisha Chaudhari, Threads & Shirts

Anisha Chaudhari
Threads & Shirts

Threads &amp; Shirts is a freshly-tailored concept providing men/women a...

Jay Ramrakhiani, Occasions Elegance Wear

Jay Ramrakhiani
Occasions Elegance Wear

It is believed that by early 19th century, Varanasi weavers had moved away ...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

Leave your Comments


November 2018

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

news category


Related Categories:

Advanced Search