From the Sector

Mimaki Europe, a provider of industrial inkjet printers, cutting plotters, and 3D printers, has announced the introduction of two technologies at ITMA 2023: a Textile Pigment Transfer Printing System and the Neo-Chromato Process. These innovations are showcased for the first time, and ahead of commercial availability, at the exhibition in Milan, Italy, solidifying Mimaki's commitment to sustainable and environmentally friendly solutions in the textile printing industry.

Mimaki’s New Textile Pigment Transfer Printing System
The transfer printing method is more sustainable than both analogue and digital textile dye printing methods with zero water consumption and substantially lower CO₂ emissions. The system comprises three essential elements: the Textile Pigment Ink, the Transfer System and the Textile Pigment Transfer paper, Texcol®.

Texcol® is a transfer paper pioneered by Dutch paper manufacturer, Coldenhove that allows for transferring a digital print using an environmentally friendly 3-step transfer process to create a vibrant application on a wide range of materials, including natural fibres. The design is initially printed onto the paper using a customised TS330-1600 - Mimaki’s high-volume, high-quality dye sublimation printer - and Mimaki’s new pigment inks developed for the process. The module that adapts the TS330-1600 will be available as an option for existing and new Mimaki customers in Q3 2023 but is being previewed on the Mimaki stand at ITMA.

Mimaki’s new Textile Pigment Ink is undergoing bluesign certification before commercial availability. bluesign is a renowned certification programme that ensures the highest levels of safety, environmental friendliness, and sustainability within the textile and apparel industry.

As the final stage, the Texcol® paper undergoes a one-step waterless process, through an entry-level calendar machine onto the textile of choice.

Cyclical textile technology
Mimaki is also debuting its new, unique Neo-Chromato Process, which revolutionises the reuse of coloured polyester textiles.

By decolourising polyester textiles that have been dyed using dye sublimation technologies, this innovative process allows materials to be re-printed or dyed immediately, contributing to a smaller circular economy. There is no limit to how many times reused polyester can be treated with the Neo-Chromato Process and the process itself minimises water usage and pollution by enabling the disposal of the absorbent paper and decolouring solvents used in the process as burnable waste.

EFI™ Reggiani, the industrial textile printing business of printing technology company Electronics For Imaging, Inc. (EFI), has broken ground on a new textile campus to accommodate ongoing growth. The new 20,000-square-metre campus in Comun Nuovo, Bergamo, Italy, is expected to be completed midyear in 2023.

Sustainability and employee well-being at the centre
The new facility was designed with environmental sustainability and employee well-being in mind. That focus includes plans to install 400 kilowatts of solar panels supplying 60% of the facility’s total energy requirements. Moreover, the building will benefit from superior thermal insulation that will ensure a reduction in heating and cooling costs. Numerous skylights in the facility will provide better natural lighting and a reduction in artificial lighting usage.
 
Green space on the campus was a priority in the design process, covering an estimated 20% of the total area. For a more welcoming work environment, the campus will also feature a canteen and gymnasium for employee use.
 
A 3,000-square-metre demo centre in the new facility will be nearly twice as large as the current EFI Reggiani demo centre in Grassobbio, Italy, offering a high-end, high-tech showcase for state-of-the-art EFI Reggiani printers, as well as Mezzera pre- and post-treatment and Jaeggli yarn treatment products. The demo centre will also feature EFI Reggiani’s recently acquired portfolio of Inèdit raster image processing (RIP) and workflow software solutions.
 
Transforming the textile industry through innovation in green
Since the launch of its first analogue printer, to its newest digital solutions, EFI Reggiani has at its core a heritage and expertise that have contributed to the transformation of the textile industry worldwide. With its total commitment to providing “Innovation in Green,” EFI Reggiani’s leadership is the result of extensive research targeted at improving productivity, quality and sustainability in its customers’ operations. The company is focused on optimising the textile manufacturing process – and reducing energy use, water consumption and overall environmental impact – to ensure customers’ business growth and profitability.
 
Over the years, EFI Reggiani’s product portfolio has continued to expand, ranging from rotary and flatbed printing machines, to scanning/multi-pass digital printers, to fast digital textile printers.

Over 600 delegates from 58 countries subscribed to the latest VDMA textile machinery webinar on sustainable dyeing held on February 3rd, 2022 – a record since the monthly online series started in June 2020. The webinar, entitled ‘Resource-saving in Textile Processing – Continuous Dyeing and Washing’, involved the three companies Monforts, DyStar® and Goller.

In outlining the capabilities of Monforts Thermex hotflue lines for the Econtrol® continuous dyeing process, the company’s Textile Technologies Engineer Jonas Beisel observed that the current industry focus is very much on cleaner processes and products in accordance with the Corporate Social Responsibility (CSR) commitments of the major fashion brands, and with further regulations to be expected.

Cellulosics
Econtrol® is a continuous process for the dyeing of woven cellulosic fabrics that has already been well proven on the market, with over 150 Monforts Thermex lines already in operation at mills worldwide.

Reactive dyestuffs are fixed into the fabric in a one-step dyeing and drying process with a controlled combination of steam and air. The entire pad-dry process takes just two-to-three minutes at a temperature of between 120-130°C and a relative humidity volume of 25-30%.

Benefits
The Econtrol® pad-dry process has a number of immediate benefits. Compared to the common pad-dry-pad-steam process, no salt is used and no steamer is required for a separate fixation step.

Compared to the pad-dry-thermofix process, no urea is used and no smoke or deposits are generated, and unlike with the cold pad batch process, direct feedback of the dyeing results ensures no batching time is necessary and guarantees good reproducibility from the lab to bulk production.

Complementary services and systems
Complementing the Monforts presentation during the webinar, Bertram Seuthe, Global Business Development Manager at DyStar, outlined the importance of specific Levafix® /Remazol® reactive dyes and Dianix® disperse dyes for sustainable dyeing processes such as Econtrol®, Cadira® Continuous and CPB knit. In these processes Sera® auxiliaries are also employed for optimised wash-off results.

Guido Seiler, Area Sales Manager at Fong's Europe, also introduced the latest developments of the Goller brand for the washing process, which can reduce water consumption by between 10 to 20%, as well as reductions in both heating energy and waste generation, depending on the specific fabric construction and required shade.