Assessments for Spunlace Lines

The high energy consumption of spunlace nonwoven lines is mainly due to water and drying intensive processes, water treatment and high mechanical requirements. The reason for the high energy consumption is the hydroentanglement process, where large quantities of water are formed into water jets under high pressure. This causes the fiber pile to solidify. At the same time, the applied water must be extracted in a first step and separated from the fibers in a second step by subsequent drying of the product.

Efficiency improvements can be achieved by optimizing water consumption, water pressure, dewatering, and heat recovery in the drying process and by using energy-efficient technologies.

Our solution at a glance

The AUTEFA Energy Assessment provides you with a comprehensive analysis of the savings potential of any existing spunlace machine, regardless of manufacturer.

Based on the technical data, our experts determine the theoretical savings and the expected return on investment (ROI). During an on-site visit, we take detailed measurements of the machine and check dewatering settings such as vacuum, slot width, slot design, leakage and mechanical interfaces for a rebuild.

Optionally, we offer trials at the AUTEFA Nonwoven Competence Center in Linz, Austria, to test the savings potential under real conditions. We then define optimized process settings and provide a recalculation based on a specific product, showing real savings and a guaranteed ROI. These results are documented in a binding retrofit contract.

The retrofit is performed directly at the customer's facility and typically takes only one to two days. After the retrofit, we evaluate the guaranteed energy savings and help you to sustainably increase your efficiency.

V-Jet injector for spunlace machines

The V-Jet Injector is an injector for spunlace machines patented by AUTEFA Solutions. Compared to conventional injector systems, the V-Jet injector reduces the distance between the nozzle and the injector base from 15 mm to 25 mm to just 0.5 mm. This reduces the distance between the nozzle strip and the web from the standard 30 mm to as little as 10 mm. 

The smaller distance reduces collisions between the individual water jets and reduces the tendency to mark. Visually, this quickly becomes noticeable through less streaking. Another advantage is the ability to focus higher when perforating and structuring. The desired effects appear more clearly. 

 

Optimized dewatering with V-Slot Flex System

The dewatering system of a spunlace machine plays a crucial role in the production process of nonwovens, also in terms of energy consumption. During and after the bonding process, in which water is sprayed through the fibers under high pressure to bind them together, the excess water must be removed. This step is important to stabilize the fiber structure and facilitate drying.

To efficiently remove the water from the material, AUTEFA's patented V-Slot flex system uses pneumatic pressing of the suction bars against the inside of the drum to eliminate leakage. This mechanism enables a significant reduction in energy consumption for the mechanical dewatering process. In our assessment for spunlace dewatering, we not only look at the extraction points inside the drum, but also at the entire dewatering process and define holistic measures to optimize it to the maximum. These measures not only have an effect on the water content and the volume flow required for dewatering, but also reduce the energy required for subsequent drying, which leads to an improvement in overall productivity.

Contact Our Team

AUTEFA Solutions Germany GmbH
Paul-Lenz-Strasse 1
86316 Friedberg . Germany
T: +49 821 2608 0
germany@autefa.com

For any inquiries or additional information, please feel free to contact us. Our team will get back to you promptly.

Contact Our Team