Nonwoven hygiene products
KARWEB NONWOVENS, based in Turkey, is one of the big global players in the sector of hygiene products with more than 270 product types made from nonwoven fabric. They export 80 percent of our production to 36 countries, like America, England and Italy. At their Spunlace plant, they can produce protective products against bacterial due to sophisticated technologies like Ozone Threatment and UV systems.
In the quality control process, which is of great importance in the hygiene sector, they rely upon the quality control system Qualiscan QMS-12 from Mahlo. With instant quality detection, they can continuously control the correct component mixture of their fibre products.
A traversing scanner (o-frame) of type Webpro M with two sensors for simultaneous measurement is used for the task. The infrared sensor Infralot IMF detects the moisture. The Gravimat DFI beta sensor measures the basis weight.
Pictures courtesy of Selçuk İplik, Turkey
Continuous control of the cross profiles of basis weight and residual moisture on spunlace nonwovens
Simultaneous measurement of residual moisture (Infralot IMF infrared sensor) and basis weight (Gravimat DFI beta sensor) on running web of spunlace nonwoven fabric
The Qualiscan QMS is displayed and operated via an ergonomic touchscreen. All important information is immediately visible. Operation is simple and intuitive.
Haartz Corporation, based in Action, Massachusetts, USA, is one of the world's leading suppliers of automotive upholstery fabrics and a leading manufacturer of soft trim automotive interiors. Haartz roll and film products can be found in almost every car brand worldwide, especially in convertible tops. At Acton, surface effects such as artificial leather are embossed into extruded PVC, TPO or other compounds to produce mouldable and handcrafted materials. These goods are processed into door panels, seats, console covers, instrument panels and more for models ranging from Nissan to BMW.
Haartz controls and monitors the quality of its coatings with the Qualiscan QMS-12 web gauging system from Mahlo. An automatic profile control system for the extrusion dies is also in use. This enables Haartz to meet the strict specifications of the car manufacturers.
Pictures courtesy of Haartz, USA
Haartz Corporation, headquartered in New England, USA, is a leading manufacturer of automotive flooring materials and uses Mahlo systems for quality control.
Thickness and basis weight measurement of an extruded TPO web. It is later processed into convertible tops.
Typical material thicknesses range from 0.5 - 1.3 mm and must be strictly adhered to by the automotive supplier Haartz.
Even very thin coatings are no problem for the Mahlo system. The Mahlo scanner measures basis weight on coated PVC film for the production of instrument panels in car dashboards.
The Gravimat DFI sensor from Mahlo provides an exact CD and MD profile of the web, improving fabric quality and reducing waste and defects.
Eric Reber from Mahlo (left) and process engineer John Gilbert from Haartz (right) discuss the intuitive software of the Qualiscan QMS-12 system.
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Qualiscan QMS-12
Traversing quality control system
A modular web gauging system for measuring, logging and controlling critical process parameters over the entire working width of running web
The basic control cabinet connects and controls scanners, sensors and the control & display station.
One or more different scanning frames can be connected to a Qualiscan QMS system. Connection is made via a normal network cable, the power supply can be provided by any standard power source (AC).
Different tasks require different solutions. Mahlo offers suitable scanners and sensors for virtually any application.
Big O-frame scanner for up to 5 sensors and up to 6,6 m web width
Scanner e for single-sided measurement for 1 sensor up to 4 m width
C-shaped scanner for 1 sensor and up to 2 m width for horizontal webs. Variants for vertical and horizontal usage available.
The beta sensor measures grammage and material thickness by means of isotope rays
Non-destructive, continuous analysis of various web or sheet parameters
Measures the material thickness of the product using a light curtain.
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Web process control
The Qualiscan QMS is a modular system for measuring, logging and controlling critical process parameters over the entire width of the product, including basis weight, coating weight, thickness, moisture etc.
Product Highlights
- Modern construction with intelligent sensors and traversing frames
- Based on industry standard hardened computers running Windows embedded operating system
- Components communicate through digital interfaces
Customer benefits
- Savings in raw materials and/or energy at the manufacturing stage
- Uninterrupted monitoring and logging of actual product quality
- Improvement in product quality, especially in conjunction with control
Sensors
The right tool for every application
The Qualiscan QMS is a modular system consisting of multiple measuring sensors and measurement frames acting as intelligent nodes on a network. Some frames can run up to five Mahlo sensors at once, continuously, precisely and rapidly across the online product.
The versatile sensors and measuring devices of the Qualiscan QMS series can sense, log and continuously control such parameters as weight per unit area (basis weight), coating weight, thickness and moisture in a variety of web-type products.
Measurement of basis weight (mass per unit area) / thickness /density
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Measurement of basis weight (mass per unit area) / thickness
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Measurement of basis weight (mass per unit area) / thickness / density
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Measurement of basis weight (mass per unit area) / moisture
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Measurement of moisture
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Measurement of web temperature
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Simultaneous measurement of residual moisture (Infralot IMF infrared sensor) and basis weight (Gravimat DFI beta sensor) on running web of spunlace nonwoven fabric
On-line control of key process parameters
The Qualiscan QMS can be used in virtually every industrial sector in which products are produced as a web, or where they are finished (laminated, coated, etc.). The versatile sensors and measuring devices of the Qualiscan QMS series can sense, log and continuously control such parameters as basis weight (weight per unit area), coating weight, thickness and moisture in a variety of web-type products.
- Web process control
- Coating & Converting
- Extrusion
- Nonwoven
- Textile
- Paper
Measuring frames
Universal application
The measuring frame traverses the sensors on-line across the whole product width and provides a cross-machine direction profile of basis weight, thickness or moisture on the display console that is a crosssection of the manufactured product.
One or more different measuring frames can be connected to a Qualiscan QMS system. Connection is made via a normal network cable, a standard 230/115 V source supplies the power.
Double-sided measuring frame for large widths and thick webs
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Double-sided measuring frame for normal widths and thick products
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Double sided measuring frame for narrow webs and thick products
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One or more different scanning frames can be connected to a Qualiscan QMS system. Connection is made via a normal network cable, a standard 230/115 V source supplies the power.
Network structure
The Qualiscan QMS is a modular system consisting of multiple measuring sensors and traversing frames acting as intelligent nodes on a network. The individual components are linked through a normal Ethernet cable as found in any office for networking multiple PCs. The network structure facilitates the integration of additional measurement sensors and scanners in the future.
Accessories
Little helpers
Accessories and add-on devices for improving accuracy, quality and performance
Documents
