#Research & Development

2025-01-23

Textile daylight management when the winter sun is at an angle

When the sun is currently shining, shading textiles face particular challenges. On the one hand, they should allow as much daylight as possible into the rooms during the dark season. On the other hand, the angle of incidence of the sun's rays is so low that the light is particularly dazzling - much more so than in summer. The German Institutes of Textile and Fiber Research (DITF) are using special light measurement techniques to research suitable shading textiles.

Daylight enhances well-being and has many advantages over artificial lighting. Sensible daylight management can therefore increase the ability to perform and concentrate. As less artificial light is required and solar gains and losses are used for room air conditioning, daylight management also saves energy.

Scheme for determination of the cut-off angle with 1 light source, 2 diffuser, 3 measurement sample on motorized rotating stage, 4 collimating lens, 5 spectrometer. Drawing: DITF

Textile daylight systems influence the incidence of light and are mainly designed to be movable. Internal systems include, for example, roller blinds, folding blinds and curtains. External systems are external venetian blinds, awnings and screens that are guided in front of the façade. The DITF can precisely measure daylight behavior in its light and dark laboratories - even beyond existing standardized test methods.

A test method developed in Denkendorf allows the glare control of solar protection devices to be re-evaluated and has been included in the standard to determine the cut-off angle. This cut-off angle describes the extent to which a solar protection device can block the transmission of direct light from a certain angle of incidence. In the currently valid standard, glare control is quantified using the two characteristics of normal and diffuse light transmittance. For solar protection devices with an openness coefficient of 1-3 %, a higher glare control class can be achieved. This applies to cut-off angles of 65° or less. The cut-off angle is determined by an angle-dependent measurement of the direct light transmittance. During the test, the solar protection textile is rotated in a modified test sample holder from the zero point until the direct light transmittance falls below a defined threshold value. This process is repeated after a gradual azimuthal rotation of the test sample, in other words a rotation of the textile in the test sample holder. Depending on the symmetry properties of the sample, up to 29 individual measurements may be required to determine the cut-off angle.

At the DITF, testing and development facilities for other photometric requirements such as incident light, self-luminous textiles and light-conducting textiles are available for industrial product developments.

The direct transmission of a textile screen when changing the angle of incidence and the specific angle of rotation. Photos: DITF

Towards a circular and sustainable textile industry in Europe: BioFibreLoop has been started

The German Institutes of Textile and Fiber Research Denkendorf (DITF) are coordinating the research project, which is funded as part of the European Union's Horizon Europe research and innovation program. The aim of BioFibreLoop is to develop recyclable outdoor and work clothing made from renewable bio-based materials. The kick-off event took place in Denkendorf on June 26 and 27, 2024.

Networking Day 2026: Industry stakeholders unite around textile recycling

In 2026, the Industry Research Group (IRG) Polymer Recycling once again brought together some of the key stakeholders in textile recycling for its annual Networking Day. This year, the event took place at EREMA’s premises in Ansfelden, Austria. It brought together key players from across the textile recycling value chain for a day of structured exchange and in-depth discussions.

Smart textiles reversibly change shape in an energy-efficient manner in response to ambient temperature

Self-actuating textile structures are used in a wide range of applications, such as medical technology, automation, architecture, agriculture, and the apparel industry. An example is the use of shading nets in greenhouses, which can be deployed and retracted depending on the sunlight intensity. The German Institutes of Textile and Fiber Research Denkendorf (DITF) are developing textiles based on shape-memory polymers with reversibly controllable geometry.

Meadow Grove Research joins ITMF as Corporate Member

Meadow Grove Research is a commodity research firm specializing in supply, demand, and trade analysis in cotton and other soft commodities. Providing clarity to the complex nature of the global fiber supply chain is one of its most formidable services. The firm thrives on customer engagement and providing the best framework for critical decisions.

ALADIN paves the way for circular and demand-driven textile production in Europe

Textile production can be organized sustainably by utilizing short supply chains and preventing overproduction. This can already be achieved today by intelligently connecting and efficiently utilizing existing infrastructure. At the same time, production becomes circular when innovative technologies and materials are used that enable high-quality recycling. The ALADIN research project, launched in May 2026 and co-funded with five million euros under the EU Horizon Europe program, is creating the conditions for this.

ITMA 2027 receives strong industry response

ITMA 2027 has unveiled its sector plan, marking progress towards the 2027 edition as planning continues ahead of the show. The ITMA 2027 sector plan covers 12 halls at the Messegelände Hannover venue, spanning over 180,000 square metres, and features 20 sectors of the textile and garment making processes, from spinning to finishing, software and automation, recycling, and fibres, yarns and fabrics.

Heimtextil expands Bed, Bath & Living with new ‘Comfort & Connect’ area

Heimtextil is expanding its product range for Bed, Bath & Living in a targeted manner: ‘Comfort & Connect‘ is creating a new meeting place in the foyer of Hall 5.1 for high-quality bed, bath and lifestyle collections. Following on from ‘Sleep & Meet‘, this is now the second area where Heimtextil is further refining its offering for exhibitors and buyers. The new area brings together established brands, high-profile returning exhibitors and international buyers in a central location with easy access.

Business situation weakens slightly, but the industry stays cautiously optimistic

The International Textile Manufacturers Federation (ITMF) has published the results of its 39th Global Textile Industry Survey (GTIS), conducted from 14 to 22 July 2026 among companies along the entire global textile value chain. Worldwide, 10% of participants rated their business situation as good, 53% as satisfactory and 37% as bad — a balance of -26pp, down from -17pp in May but still well above the 2023 lows. All regions are now in negative territory, from South Asia at -3pp to North & Central America at -58pp.

Ministry of Industry Delegation visits NatureWorks’ second global manufacturing site at Nakhon Sawan Biocomplex

NatureWorks Asia Pacific Limited welcomed a high-level delegation led by Mr. Varawut Silpa-archa, Minister of Industry, to its manufacturing site at the Nakhon Sawan Biocomplex (NBC). The visit follows the successful inauguration of the site on April 29, 2026, and highlights the role of public-private collaboration in advancing Thailand’s sustainable industrial development and bioeconomy ambitions.