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Revolutionary Innovative Technology from DiloGroup: The H Alpha Loom

In its 117 year history, DiloGroup has always set new standards in regard to machine performance and efficiency. Innovative technologies like DI-LOUR, DI-LOOP and Hyperpunch have created new markets for the nonwovens industry and have contributed to continuous growth.

DiloGroup, consisting of DiloSpinnbau, DiloTemafa, DiloMachines and DiloSystems, offers production machinery for complete processes to make needled staple fibre nonwovens, from fibre preparation, to carding, crosslapping or aerodynamic webforming, needlepunching or other consolidation technologies for any fibre material.

With its recent developments DILO is continuing this strategy of high-quality engineering and revolutionary innovative technology.

The H Alpha loom is a new variation of Hyperpunch technology. By reducing detrimental draft, increasing throughput speed and lowering costs, it is of interest for universal applications.

The surface quality of nonwovens is an important parameter and highly influenced by the needle pattern. The new needle pattern “8000X” can be considered a breakthrough for realizing very uniform stitch distributions over a wide range of line speed. The related “6000X” is suitable for Hyperpunch needle looms.

The Hypertex technology combines a grid of endless fibres and nonwoven fabric as a sandwich using the needlepunch process. An additional weaving process becomes unnecessary. The grid improves the tensile strength of products such as filters or roof sheets and will lower costs and production time.

In the field of “textile additive manufacturing” the “3D-Lofter” will offer further chances of fibre savings for needlefelts used in the automotive and other applications because topologically distributed fibre masses can be positioned in the felt where needed by so called “individual webforming spots”.

“diloline 4.0” includes a wide variety of “smart manufacturing” actions in collaboration with Siemens which all aim at further simplifying operation, increasing transparency in web forming and consolidation thereby increasing efficiency. Production data are stored, documented and compared. An “alarm monitor” indicates irregular behaviour. A production analysis documents the reasons for standstill times. This data can be used to avoid irregular behaviour. Numerous information modules can be recalled via mobile apps and cloud data (mindSpheres). All these methods to control the machines and to generate production data will be helpful to further secure the complex functions within the production system independently of personnel and shift.

DiloGroup will showcase its products at booth C50 at Techtextil India.

Dilo: Lines for Artificial Leather, Geotextiles and Hygiene Articles

DiloGroup delivers complete lines for the production of needled staple fibre nonwovens. In its 116 years of history, Dilo has always set new standards. Innovative technologies such as DI-LOOP, DI-LOUR and Hyperpunch have opened new markets and contributed to their growth.

To further develop the Asian market, Dilo has opened a subsidiary in India near New Delhi. This enables a closer relationship to customers as well as faster support for sales and service.

DiloGroup delivers complete lines for the production of needled staple fibre nonwovens. In its 116 years of history, Dilo has always set new standards. Innovative technologies such as DI-LOOP, DI-LOUR and Hyperpunch have opened new markets and contributed to their growth. Current developments offer custom-made lines which do not only increase capacity but also fulfill endproduct property requirements.

Hyperlayer

The production of very light-weight hygiene products on water-entanglement lines requires a high web quality and a low area weight. At the same time, the Asian market requires a balanced MD/CD strength ratio. To realize high productivity with these demands, Dilo has resumed and revised the principle of the camel-back crosslapper. The kinematic solution of the Hyperlayer lays down the web gently and precisely even with a small number of layers.

As the web is guided through the complete laydown process on both sides, highest production speeds (web infeed speeds up to 200 m/min), precise edges and a minimum of draft can be realized depending on the fibres used.

Compact line, carbon recycling

A positive trend to lightweight construction in recent years has led to the substitution of metal structures by carbon composites in large quantities. With its new compact line, Dilo has contributed significantly to the recycling of composites. Recycled carbon staple fibres are reprocessed into felt and can then be further converted to new structural elements. In contrast to most staple fibres, carbon fibres have characteristics (smooth surface, no crimp, low cross strength) which require adaption of web forming within the carding machine. Withits compact card (DCL) Dilo has met these challenges and introduced a stable web forming process. The compact line also meets the requirements for a production of small quantities of needle felts made from other high quality special fibres like ceramics or PTFE. Dilo presented the compact line first in 2015. It is now in use in industry and research. With a card working width of 1.1 m and a layering width of 2.2 m, it requires a floor space of only 60 m².

Hypertex

Nonwoven filter media consist of a sandwich structure which combines the filtration characteristics of felts with the high strength of yarns or filaments. The HyperTex process allows the production of reinforced felts online and eliminates an additional stage for producing the scrim. In the HyperTex process Dilo combines a scrim fabric machine of Messrs. OnTec with a Hyperpunch needleloom. The structure derives its strength from needling scrim, upper and bottom felt together. Very high production speeds up to 40 m/min can be reached. Infinitely variable mesh sizes in the scrim and a wide variety of different reinforcing yarns offer a great flexibility to the customer. The high efficiency in regard to fibre and energy consumption and the low space re- quirement are further significant advantages of this technology.