Obiettivo
This project had 4, nearly consecutive, parts. The first was to define what constitutes a defect in a particular fabric. Researchers sampled more than 1,000 materials, including denim, cotton/viscose and cotton/polyester blends. Their defects were analysed and evaluated to formulate and specify characteristics for the machine system to read as defects. This information can be used by textile folding and cutting systems to optimize the use of the fabric and to minimize scrap material. Step 2 consisted of designing and constructing a prototype machine capable of identifying fabric defects as the material moved through it in the fabrication process. So far, a machine has been developed that can recognize approximately 75% of all defects but only on stationary materials. Since fabrics vary widely in their characteristics and in their defect characteristics, software instructions, or algorithms, for each must be unique. Thus, to facilitate testing of the detection machine, only denim fabric is currently being examined. Further refinement of the prototype is required and final testing with moving fabric has just began. The third step had been to develop a system that could mark a fabric in some way after determining a defect. However, since the beginning of the project, fabric marking systems have become commercially available. Therefore, the partners purchased a system instead of developing their own. The final step was to integrate the detection and marking systems. But due to delays in the earlier work little has been achieved in this area to date.
THE AIM OF THE PROJECT IS TO DEVELOP A COMPLETELY INTEGRATED SYSTEM TO DETECT A ND TO MARK DEFECTS IN WOVEN AND KNITTED GOODS.
THE TYPES OF DEFECTS TO BE DETECTED ARE IRREGULARITIES IN:
- PATTERN
- STRUCTURE (SPINNING, WEAVING, KNITTING)
- SHEEN
- COLOUR
THE SYSTEM IS TO BE INSTALLED ON THE LOOM OR KNITTING MACHINE, THE SHEARING MAC HINE AND THE INSPECTION TABLE; IS ONLY POSSIBLE UP TO A WIDTH OF 20 CM. AT PRES ENT MONITORING.
AFTER DETECTION OF A DEFECT, THE DEFECT IS TO BE EVALUATED.
THIS INFORMATION IS TO BE PROCESSED IN ORDER TO:
- GIVING A WARNING IF NECESSARY
- EVALUATE THE QUALITY OF THE PIECE OF FABRIC
- CONTROL THE PRODUCTION.
THEREFORE, THE APPROPRIATE SOFTWARE IS TO BE WRITTEN.
ALSO, A MARKER/READER SYSTEM IS TO BE DESIGNED AND TESTED.
THE TYPE OF MARK WILL DEPEND ON FURTHER PROCESSING AND TESTED. THE TYPE OF MARK WILL DEPEND ON FURTHER PROCESSING OF THE FABRIC: -VISIBLE/INVISIBLE
- ON CARRIER/DIRECTLY ON FABRIC
- RESISTANT TO CHEMICALS, TEMPERATURES, PRESSURE.
FINALLY, THE INFORMATION ON THE NUMBER AND TYPE OF DEFECTS IS TO BE USED IN THE CLOTHING INDUSTRY, IN ORDER TO CONTROL THE FOLDING/CUTTER SYSTEM THIS WILL LEAD TO AN OPTIMAL USE OF THE FABRIC OR KNITTED MATERIAL.
Campo scientifico
Argomento(i)
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CSC - Cost-sharing contractsCoordinatore
9050 Ledeberg
Belgio