From the Sector

Every day, technical service experts from Trützschler visit customers around the globe. Now the company adds another location to their list: the virtual space, called Digital Start-Up. Digital Start-Up is a special service that helps customers get maximum value from Trützschler’s digital solutions. From personalized configurations through to analyzing data and optimizing production processes in real time, Digital Start-Up supports yarn production processes.

Digital Start-Up offers:

• Guided onboarding for all-in-one platform My Trützschler including My Mill, Training, Shop and more.
• On-site training for all machines and services.
• Digital audits that combine online and on-site guidance, training and troubleshooting

The My Trützschler platform provides access to the digital Trützschler world, with insights from digital services including My Mill Training, Shop and My Wires. The My Identity tool ensures safe access on any device, anywhere – and it saves time with single sign-on authentication.

Many end-users now expect recycled materials to be in textile products they purchase – and this is driving innovation throughout the industry. However, there are still many technical and economic issues facing yarn and fabric producers using recycled resources. Members of the Swiss Textile Machinery Association offer some effective solutions to these challenges.

Synthetic recycled materials such as PET can usually be treated similarly to new yarn, but there are additional complexities where natural fibres like wool and cotton are involved. Today, there’s a trend towards mechanically recycled wool and cotton fibres.

Spinning recycled cotton
The use of mechanically recycled fibres in spinning brings specific quality considerations: they have higher levels of short fibres and neps – and may often be colored, particularly if post-consumer material is used. It’s also true that recycled yarns have limitations in terms of fineness. The Uster Statistics 2023 edition features an extended range of fibre data, supporting sustainability goals, including benchmarks for blends of virgin and recycled cotton.
In general, short fibres such as those in recycled material can easily be handled by rotor spinning machines. For ring spinning, the shorter the fibres, the more difficult it is to guide them through the drafting zone to integrate them into the yarn body. Still, for wider yarn counts and higher yarn quality, the focus is now shifting to ring spinning. The presence of short fibres is a challenge, but Rieter offers solutions to address this issue.

Knitting recycled wool
For recycling, wool fibres undergo mechanical procedures such as shredding, cutting, and re-spinning, influencing the quality and characteristics of the resulting yarn. These operations remove the natural scales and variations in fibre length of the wool, causing a decrease in the overall strength and durability of the recycled yarn. This makes the yarn more prone to breakage, especially under the tension exerted during knitting.

Adapting to process recycled materials often requires adjustments to existing machinery. Knitting machines must be equipped with positive yarn suppliers to control fibre tension. Steiger engages in continuous testing of new yarns on the market, to check their suitability for processing on knitting machines. For satisfactory quality, the challenges intensify, with natural yarns requiring careful consideration and adaptation in the knitting processes.

From fibres to nonwovens
Nonwovens technology was born partly from the idea of recycling to reduce manufacturing costs and to process textile waste and previously unusable materials into fabric structures. Nonwovens production lines, where fibre webs are bonded mechanically, thermally or chemically, can easily process almost all mechanically and chemically recycled fibres.

Autefa Solutions offers nonwovens lines from a single source, enabling products such as liners, wipes, wadding and insulation to be produced in a true closed loop. Fibres are often used up to four times for one product.

Recycling: total strategy
Great services, technology and machines from members of Swiss Textile Machinery support the efforts of the circular economy to process recycled fibres. The machines incorporate the know-how of several decades, with the innovative power and quality standards in production and materials.
Stäubli’s global ESG (environmental, social & governance) strategy defines KPIs in the context of energy consumption, machine longevity and the recycling capacity in production units worldwide, as well in terms of machinery recyclability. The machine recyclability of automatic drawing in machines, weaving systems and jacquard machines ranges from 96 to 99%.

Baldwin Technology Co. Inc. has launched a new set of resources for sheet-fed and web offset printers at PrintEnomics.com with the release of the “Video Didn't Kill the Radio Star. And Digital Didn't Kill Print” eBook.

Its PrintEnomic$ website offers curated resources that analyze trends and issues impacting not only sheet-fed and web offset printers but also narrow web and corrugated printers. Separate eBooks, videos, podcasts and instructional guides are available to help maximize printer profitability in all three specialized areas.

Baldwin is a leading global manufacturer and supplier of innovative process-automation equipment, parts, service and consumables for the printing, packaging, textile, plastic film extrusion and corrugated industries.

More than 5,000 print industry professionals have already downloaded or viewed earlier-released eBooks centered on narrow web (“Untangling the Web”) and corrugated (“From Beast to Beauty”).

Through interviews with customers, industry insiders, in-house engineers – and reviews of the latest reporting – Baldwin explores four trends in the “Video Didn't Kill the Radio Star. And Digital Didn't Kill Print” eBook:

• The resurgence in book publishing
• Labor challenges
• Direct mail marketing as a cure for screen fatigue
• Sustainability

Just in time for ITMA 2023 in Milan, the flat knitting machine manufacturer STOLL has launched its new collection COLOR IN KNITTING. It holds a range of knitting techniques that were ideated for novel super fine machine gauges such as the E20.

In addition, STOLL reveals its internal design workflow, showcasing how digital software tools can speed up the design process. The core of this is k.innovation CREATE DESIGN. Through the utilization of STOLL’s jointly developed design software solution, k.innovation CREATE DESIGN, in collaboration with @KM.ON, the shape and structures of a garment, can be digitally created, allowing for its simulation before it is even knitted. The interfaces to various external 3D software tools, allow for a realistic representation of the garment facilitating faster design decisions. Once the virtual knits, made in the CREATE DESIGN software are ready for manufacturing, it will be send to a knitting technician for further processing in k.innovation CREATE PLUS, This significantly speeds up product development while reducing communication issues between designers and technicians.

Sustainability and responsible handling of precious natural resources were key factors driving the development of the latest trend collection, COLOR IN KNITTING. STOLL-knit and wear®, a technique that stands for seamless knitted garments, can play a significant role in reducing waste. In addition, fewer process steps are required in the production chain - with advantages for production efficiency.
For another highlight of COLOR IN KNITTING, the STOLL creatives have worked on imitating different yarn effects with knitting technology such as slub yarn optics or the simulation of fabrics like crepe de chine/crepe georgette

On the occasion of the 150th anniversary of STOLL, COLOR IN KNITTING features a selection of vintage pattern replicates. These patterns can be found in STOLL’s extensive sample archives in Reutlingen. It is impressive to learn that all these former fabric constructions can still be replicated today and also reinvented with todays machine features. This approach showcases the steep progression of technical advancements over the past 150 years.

STOLL´s latest trend collection culminates in the creation of an invaluable resource: the book “Color in Knitting: By Designers, for Designers”. This publication aims to cater to a diverse audience by presenting a comprehensive guide to designing with colors using various flat knitting technologies and will be presented in the chapter "Book release".

This month, the circular knitting machine manufacturer Mayer & Cie. is launching its upgrade kits for circular knitting machines that are already successfully in use by customers. With tailor-made packages, the company wants to give its users the opportunity to take advantage of technological progress in their existing machines. The aim is to improve the performance of the existing machines and to extend their service life. In addition to the machine-specific upgrade kits, the company now starts offering tailormade spare parts packages. They are intended to ensure machine availability and equip customers with spare parts for standard situations. In addition, they offer a degree of independence from possible failures in the supply chain and rising transport costs.

Longevity, a popular product property
“Longevity of our circular knitting machines is definitely a property that our satisfied customers mention regularly”, Mayer & Cie. sales director Wolfgang Müller says. The company estimates that up to 50 percent of all the circular knitting machines it has ever made are still around in the market somewhere.

Upgrades boost performance and value
Value retention, maintenance and upgrades for existing machines are a key issue for the company – and for the customers who successfully use existing Mayer & Cie equipment. That’s why the company recently launched customised upgrade kits to improve the long-term performance of machines.

Low budget, clear benefit
Compared to a new machine, upgrade kits are a low-cost investment that deliver clearly defined benefits. For example, an improved yarn guide ensures a significant increase in the plating reliability and output of the machine in question.

Most of the upgrade kits is machine-specific; the aforementioned yarn guide ensures a boost in productivity for the Relanit 3.2 II and Relanit 3.2 S. For S4 machines an optimised fluff blowing device can be the solution. It ensures that less fluff is knitted in and thereby improves the fabric quality. It also reduces downtimes that would otherwise be required for cleaning. Upgrade kits suitable for most Mayer & Cie. machines are the edge trimmer to open a fabric hose before the fabric’s rolling-up and the laying facility for high-quality hose fabric.

Spare part packages: Inside is what is required
In addition to individual upgrade kits Mayer & Cie. now offers spare parts packages. They too are customised for individual machines. When purchasing a machine, the customer can also order a small or a large spare parts package. Selected specially for the machine in question, it contains the most important consumables and spare parts.
The new spare parts packages also increase customers’ independence of supply chain failures and rising transport costs.

Picanol has introduced its latest generation of airjet and rapier weaving machines, which have been called the “Connect” generation. These new generation weaving machines focus on connectivity and an increased level of data availability. With this new generation, Picanol is launching several new functionalities such as a digitalized Gripper stroke setting, Gripper tape monitoring, Climate control, Shed angle measurement, and fully integrated Power monitoring.

“Following the successful launch of our digital platform PicConnect earlier this month, we have now released a new generation of weaving machines, which are known as the Connect generation. Our Connect generation weaving machines can provide the correct data and are loaded with new and never-before-seen functionalities. This is clear proof that for Picanol “Driven by Data” is not just a slogan but a commitment. Not only have these innovations allowed us to make big improvements when it comes to our four design principles – Smart Performance, Sustainability Inside, Intuitive Control, and, of course, Driven by Data – but when combined with our new digital platform they will allow you to amplify your own intuition.” comments Johan Verstraete, Vice President Weaving Machines.

From now on, the range of Picanol weaving machines will have the “Connect” suffix. For the airjet weaving machines, this means: OmniPlus-i Connect and TerryPlus-i Connect, while for the rapier weaving machines, this means: OptiMax-i Connect and TerryMax-i Connect. These new machines are built around Picanol’s four main design principles:

Smart Performance
On the OptiMax-i Connect, Picanol has introduced a lubrication monitoring sensor in combination with a temperature sensor. The combined data they provide allow the user to make sure the gripper tapes are in optimal condition for maximum performance. As an option, a gripper stroke measurement sensor is also available. This not only dramatically simplifies the setting of the gripper stroke, but also enables the user to realize higher machine speeds when weaving reduced widths – a pure extra output combined with more user-friendliness.

Sustainability Inside
Even though it was 25 years ago that the Sumo Drive concept was launched, it remains the most powerful, versatile and energy friendly machine drive available. And it has been even further optimized. It features an optimized sheet metal package for lower energy consumption, optimized oil cooling circuit for a better performance and a built-in temperature monitoring. Moreover, the Connect machines can be equipped with a Power monitoring module, which allows the user to keep track of the power consumption of each machine over time. Every Connect machine also has a built-in ambient temperature and humidity sensor, which will help to optimize the climate control in the weaving shed at the lowest cost. And as raw material is the biggest cost factor, each machine can also be equipped with raw material use monitoring.

Driven by Data
As the machine has more sensors than ever before, it also generates more data. To enable a fast reaction to all these sensor data, the BlueBox control unit has been further optimized: better heat management guarantees short reaction cycles combined with the long lifetime of components. To have a good view of all of the data generated, a special sensor dashboard screen is available in the BlueTouch display: with a simple touch of the screen, the current and historical power consumption, temperature, humidity, material consumption, and – on the OmniPlus-i Connect – also the air consumption, can be monitored. The BlueTouch display is now also equipped with an Action center, an electronic logbook where all actions such as maintenance interventions can be logged or scheduled beforehand. The machine manual is now available on the BlueTouch display, and with the context-based help function the help pages related to the operation the user wants to perform appear with one touch of his/her fingertip. The built-in web browser even allows the user even to consult, for example, tutorial videos on the web to guide them through a setting procedure.

Intuitive Control
The Connect generation was designed to focus on what really matters: weave the highest possible grade A fabrics at minimal costs. A large set of tools have been installed to facilitate this goal. One of the most remarkable ones is the Harness frame stroke measurement – until recently, it was only available on the revolutionary SmartShed, but it is now also available on the cambox and dobby machines. Combined with the shed visualization and simulation, it offers a quantum leap in terms of optimizing the user’s shed settings without losing any time or taking any risks. The colors of the programmable Smart signal lights with stop timing functionality are now repeated around the push buttons, allowing even better visibility and the prioritization of interventions by the weaver. A full-fledged Access control system not only limits the access to certain pages and settings depending on the user, but also allows a tailored dashboard to be established for each user profile.