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Microwave Basis Weight Impregnated NonWoven


Scienta Quality Control System

Scienta QCS System for Spunbond and other Nonwoven Machines 

Scienta QCS System utilizes the latest measurement, data processing, and communication technology with advanced scanners to offer easy-to-use process control tools, which allow clients to maximize their process performance on paper or printing machines. Scienta QCS System is tailored to customers' specific requirements utilizing a modular hardware designs. All components are based on open standards to ensure affordability and to guarantee future flexibility. The System is designed and solidly built to withstand heat, dust, resin, etc. and relies on 50 years of measurement experience. Data from the QCS scanning sensors is processed with high performance 32-bit RISC processors to get the power needed to do real-time floating-point calculations in the sensor board.

New None-Radioactive Microwave Based Basis Weight and Moisture Sensor: Click This

Scienta Quality Control System

New integrated NIR sensor for Basis Weight and Moisture measurement
Scienta has developed a new integrated sensor, which measures both Basis Weight and Moisture Content of Polypropylene webs using near infrared (NIR) light. The new sensor is specifically designed to measure spun-bond and other thin nonwoven materials accurately by using a special mirror construction, which compensates for the flocky structure of the web. The measurement principle for both Basis Weight and Moisture measurement is based on NIR light as opposed to beta radiation, which is the most common way to measure Basis Weight. The absence of radioactive sources makes the sensor acceptable and easy to apply in most environments. No licenses are required from authorities, nor specific safety procedures established.

Features and benefits of using the new multichannel NIR sensor
Contrary to traditional moisture meters, the Scienta NIR sensor uses same spotScienta QCS measurement. This makes accurate measurement of uneven materials possible. In the integrated sensor both Basis Weight and Moisture are measured from the same spot further increasing the accuracy and reliability of the measurement.

A highly important feature of the sensor is its ability to detect wetting agent strips. By reading the moisture content accurately we can monitor how much wetting agent is applied in a spunbond application. In addition, the position of the strip is recorded and stored in a database together with the reel data. Streaks and missing fibers can be seen in the Basis Weight CD profile.

A very accurate 10mm resolution is used for the profiles although a step profile with a resolution matching the line construction can be displayed. All trends and other data are stored in the reel report. This data may be integrated into the factory database using a standard OPC interface. Combining the sensors into one unit makes the construction much more cost efficient than having two separate sensors.

Manufacturer: Scienta Oy; Jorvas, Finland;


Moisture Range: 0.5 to 20%
Accuracy 0.3%
Resolution 0.02g/m2

Basis Weight Range: 5 to 150 g/m2
Accuracy 0.3%
Resolution 0.1g/m2

Technical Specifications:

180 x180mm (7in. x 7in.) electro plated I-beam steel construction bolted onto 20mm (0.8in.) thick end plates.
Physical Dimensions
Scanner Width: 6800mm (268in.) max
Beam Width: 6000mm (236in.) max Machine-Direction: 372mm (14.6in.)
With three sensors at 0º pass angle: 670mm (25in.) Scanner Height: 1170mm (46in.)
Weight: 1000kg plus 100kg/m
(2000lbs plus 100lbs per ft)
Maximum Sheet Width 5100mm (200in.)
Scanning Speed
Scanning speed is governed by an inverter, assuring smooth operation of the heads. Normal scanning speed is 100-200mm/second (4in./second).
Head Positioning
The heads use web edge detectors to seek out the web and automatically adjust for width and web position changes.
Single-Point Positioning Accuracy + 3mm (+ 0.12in.)
Maximum Ambient Temperature 55ºC (1 30 F) standard
Power Requirement 110-230 VAC, 50/60 Hz, 1 kW
Drive Belt Steel reinforced polyurethane timing belt
Scanner Drive120 W AC motor with heavy-duty tooth wheel gearbox.
Guiding system
10 large diameter 80mm (3.15in.) neoprene covered wheels supported by a machined and tempered I-beam.
Instrument Air 6 bars (90psig) oil free (0.01 µm filter) 100 l/min.