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New method for raising high-quality fabrics
No full textThis article describes the development of an innovative method for raising the surface of high-quality fabrics. The method consists of replacing the natural teasels, currently used, with experimental metal teeth, which do not damage the fabric and reproduce the same effect as natural cards. Literature on the subject contains several examples of artificial metal teeth, which have the advantage of a longer life than the natural ones, however, some can mark the fabric along the warp, if not properly sized. The study in question was based on both experiment and theory, by simulating a flexural load on the barb wire and evaluating its rigidity. Excellent results have been obtained from various tests, and have led to the construction of a new industrial fabric-raising machin
Surface degradation of linen textiles induced by laser treatment: comparison with electron beam and heat source
No full textHigh-performance device for air interlacing of a yarn and corresponding method
Full text linkAbstract
A device for air interlacing of a yarn , comprising an interlacing chamber , a first entrance channel for receiving the yarn at the device entrance and feeding it to the interlacing chamber , and a second exit channel for receiving the yarn from the interlacing chamber and releasing it at the device exit, in which the interlacing chamber is delimited by a first emitting wall bearing a nozzle for the emission of a continuous jet of compressed air , and a second deflecting wall , opposite the first wall , suitable for receiving and deflecting the jet of compressed air emitted by the nozzle and intersecting the yarn to be interlaced, and in which the second deflecting wall is concave in shape both on a transversal plane and on a longitudinal plane with respect to the feeding path of the yarn through the device
Thermal Degradation of Linen Textiles: The Effects of Ageing and Cleaning
No full textThermal degradation of modern and ancient linen fabrics was investigated by DSC and FTIR analysis in order to find a possible correlation between thermal behaviour and the age of linen. A similar pattern to that for cotton degradation was found, and the essential influence of impurities occurring naturally or occasionally was found. Moreover, in the case of old linen fabrics, a cleaning treatment can induce chemical degradation, which is favoured by fibre-weakening, as confirmed by SEM analysis. Although a possible ageing effect seems to be hidden by interference sources, thermal data can provide very helpful information about the status of an ancient linen fabric
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