From the Sector

As a global provider of sustainable woodfibre products, Sappi will be showcasing its solutions for the garment industry under the theme “Fashion meets Forest” at ITMA 2023 – with sublimation papers and its dissolving wood pulp, used for the production of garment fibres under the “Verve” brand name.

How can the woodfibre industry support a more sustainable garments market? Sappi is eager to answer this question at the ITMA and has created a “knowledge trail” for visitors to explore under the motto “Fashion meets Forest”. Visitors to the stand can follow the journey from wood via cellulose and fibre to the finished yarn and the printed garment.

Sublimation papers: Expanded production capacity in Carmignano
Sappi’s Transjet sublimation papers stand for fast, uniform ink transfer and minimal ink consumption. As a premium supplier, Sappi is constantly striving to meet its customers’ needs. So, at this year’s ITMA, various sublimation papers with optimised qualitative properties will be on show.

Sappi maintains the high quality of its coated Transjet and uncoated Basejet sublimation papers by regularly investing in new, state-of-the-art technologies. At the end of April, a new warehouse has been inaugurated at the Carmignano mill in Italy. In the next month’s, Sappi will further invest in two new converting machines with a width of 1.9 meters and 3.2 meters as well as in a fully automated packaging line. All the investments will support the company’s vision of having a complete in-house solution for the sublimation industry, have a positive impact on CO2 emission, satisfy the increased demand of their customers as well as further improve lead times.
 
“Verve” dissolving wood pulp for high-quality textiles
Sappi will also be showcasing its dissolving pulp (DP) brand “Verve”. DP provides the feedstock raw material toward producing rayon fibres such as Lyocell and viscose and further into yarns and fabrics. Textiles produced from wood based cellulosic fibres are noted for their breathability, colour fastness, softness, drape, absorbency and biodegradability. In addition to the garment industry, dissolving pulp is also used in various household and pharmaceutical products.

DyStar and RotaSpray successfully developed their indigo spray dyeing procedure for production on a bulk level which allows denim producers to significantly reduce their environmental impact.

The solution was first introduced at ITMA Milan in 2015. Since then, DyStar and RotaSpray have been working together to develop it further and make it available for bulk production in important Denim markets like Turkey, India and Pakistan. With the recent breakthrough, they are now announcing a salt-less dyeing solution for the denim industry. This new technology is awarded important ECO certificates and offers high flexibility for dyeing small lot sizes, reduced water usage and effluent discharge lower impact on yarn in the dyeing process and simplified recipe changes.

The new Spray dyeing technology combines DyStar Indigo Vat 40% Solution, Sera® Con C-RDA (a unique organic reducing agent) and the effective optimization of spraying parameters of the EPO patented RotoDyer® and the RotoCoater® spraying technology. Although rotary atomizers have been established for several decades in the textile industry they were mainly used for rewetting textiles with moisture. But recent cost pressure and a global demand for more sustainable solutions were motivators for the R&D of the industry and led to the recent technology leap.

On sheet dyeing ranges (slasher), with process and layout modifications, coatings including DyStar Indigo Coat, Cassulfon®, Remazol®/Levafix® and Imperon® dyes can be applied by spray dyeing as well. The spray application of fixing agents and oxidation chemicals can be integrated into sheet dyeing (slasher) as well as rope dyeing machines.