The Rhotex 320 uses Durst Quadro Array print head technology with 512 nozzles compactly arranged in an Array and con­tinuous flowing, temperature controlled ink. Coupled with Durst’s proprietary firing impulse software, which controls the precise setting of ink drops at high frequency, ensure the printing of fine text (as small as 4 point) on polyester fabrics without wicking, as well as strong solid colours and step-free color shades. Special designed transport system with dancers on the loading and on the take-up side and a tension regu­lation device for textiles.

The Durst Quadro 30D AQ printhead consists of 2 compact Spectra slots with 128 jet outlets which means a packing density of 512 jet outlets per Quadro head. The highly precise fabrication of the carrier plate and the micro meter exact assembly of the slots result in equally spaced jet distances of 127 microns with an excellent straightness of the fluid coming out of the jets.


The compact and modular construction of the Durst Quadro print head makes the simple integration of several print heads in the Rho with different alignment arrangements possible. This influences the resolution as well as the ink dot placement and allows flexibility in the design of print head architecture.
The 512 jets are controlled by eight independent actuators, of which each controls 64 independent jet channels. The single jets are controlled through a serial parallel converter and are arranged in 2 rows. Addressing of the jets can occur individually or in a simultaneous fashion.


The Durst Quadro reaches top quality of the print through outstanding constant drop volume at high consistency of the drop speed and drop form. Next to the above described electronic, the Durst designed intelligent ink supply to the jet outlets is also part of achieving a top quality print.


The ink is led through an ink inlet to the intermediate tank with an ink filter and an electronic standard monitoring system. It then proceeds to the "lung" where it is degassed by an osmotic filter. It is heated in the ink lines within the print plates with high consistency, and kept in motion and led to the piezo print system. The lung and ink leading system in the Quadro head allow for an operation of the piezo head of up to 20 KHz at high dependability and drop geometry consistency.


The jet head alignment is designed in a way that the white print occurs simultaneously in one process step with the CMYK, Lm and Lc.


Integrated ink tanks with 10 litre capacity per ink, refillable during the printing process. Integrated de-gassing system.

The roll support at the loading side allows the use of pneumatic 3” or optional available 6” core axles with a media outside diameter of up to 500 mm (20 in.). A specially designed device allows the loading of 3200 mm (11.5 ft) wide media by a single person.
Large transport rolls, dancers on the loading- and the take-up side of the printer and stretching rolls guarantee the smooth transport of the textiles media over integrated mesh kit.

Rhotex water-based, dispersed dyes inks, tollay VOC-free and environmental friendly, blue wool rating 5-6, for indoor and outdoor applications. The following process of calendaring outside the printing station does fix the inks and create the brightness of colors.

The Rhotex touch-screen user software is based on printing experience and is driven by industrial standard LINUX operation software and ensures reliable, 24/7 production.

The software functions include:
• Media channel, archiving for the selected tension for each media the selected, step, pass, tension selection and head media distance
• Queue function with selection criteria
• Backlit function in one printing process
• Interface to external order management software
• Efficient workflow with color management based on external Caldera GrandRIP+ Server
• Automated workflow using RIP-Job- tickets and hot folders with saved speed-passes, color management and simultaneous administration of queue and hot folders.

The Rhotex 320 is of course modular as well as retrofit built: from CMYK to integrated light colors.

Other features of the Rhotex include:
• The dispensing system also includes a fold-compensation device and an antistatic system
• Automatic, self-cleaning jet system for continuous industrial printing
• The controllable hot air drying system ensures consistent drying over the whole width of the printed material
• Material-specific machine settings can be stored and recalled in the media channel
• Integrated, software-controlled servicing instructions
• MIS prepared printing software
• Caldera-RIP software with Adobe Creative Suite 5 integration optimises file handling and allows for continuous upgrading in line with new printing requirements.

Rhotex has provided new and profitable business opportunities in LF printing. It enables the printing of textiles for use in the home, wallcoverings, domestic textiles and interior design, as well as fashion applications.