Abstract:
An elastic thread yarn comprising linen and/or ramie and/or hemp and an elastic thread, with a thread made of an elastomeric material, and a substantially inextensible yarn made of linen and/or ramie and/or hemp helically wound about the elastomeric core at a predetermined number of windings per length unit of elasticized yarn, wherein, for each metric count Nm, the number of windings substantially inextensible yarn of the elasticized yarn, is set between two values indicated by two curves (12, 13) which can be expressed according to exponential laws, for example, with the same exponent, i.e. according to equations of the form T = K N 0, 327 where K is 20 and 50, respectively. In particular, an intermediate curve 11 is such that, by choosing for a given metric count a number of windings proximate to curve 11, this best feature balance is obtained. In an exemplary embodiment, the core comprises a bare elastic thread, i.e. an elastic thread that is not coated by other fibres. In another exemplary embodiment, the core comprises an elastic thread coated with a natural fibre as cotton or viscose, or with a combination thereof. The elastic thread yarn according to the invention provides elasticized fabrics containing linen and/or on ramie, which has, in particular, a better surface regularity than well-known elasticized fabrics comprising linen, and which is comparable with the regularity of the elasticized fabrics comprising natural fibres such as cotton, wool, etc. and synthetic fibres, and also allows using ramie and hemp yarns to make elastic thread yarns and fabrics, for example, for making cloth items.
Abstract:
The invention relates to a canvas to be painted, consisting of a fabric comprising plant fibres, especially linen, jute, ramie and/or sisal, said fabric also being coated with a size.
Abstract:
The inventive method provides highly desirable hand to various different types of fabrics through the initial immobilization of individual fibers within target fabrics and subsequent treatment through abrasion, sanding, or napping of at least a portion of the target fabric. Such a procedure includes "nicking" the immobilized fibers thereby permitting the fibers to produce a substantially balanced strength of the target fabric in the fill and warp directions while also providing the same degree of hand improvements as obtained with previous methods. Furthermore, this process also provides the unexpected improvement of non-pilling to synthetic fibers as the "nicking" of the immobilized fibers results in the lack of unraveling of fibers and thus the near impossibility of such fibers balling together to form unwanted pills on the fabric surface. Fabrics treated by this process are also contemplated within this invention.
Abstract:
A spun yarn characterized by comprising at least 15 wt.% short fibers of polytrimethylene terephthalate and satisfying the relationship: modulus at 5% elongation (%) ≥ 0.1X + 70 wherein X represents the content (wt.%) of the short polytrimethylene terephthalate fibers in the spun yarn. It is excellent in suitability for knitting/weaving, stretchability, and recovery from stretch and has shape stability and durability in long-term wear.
Abstract:
Ein textiles Substrat für Sitzbezüge, ein Gewebe, Gewirk oder Gestrick, insbesondere Raschel oder Malimo, enthält mindestens 40 Gew.-% Wolle und mindestens 15 Gew.-% Ramie, stets aber von beiden zusammen mehr als 85 Gew.-%. Das Substrat kann ausschliesslich aus Wolle und Ramie bestehen, kann aber auch weitere Bestandteile enthalten, vorzugsweise tierischer oder pflanzlicher Herkunft wie Baumwolle, Leinen, Hanf oder auch Naturkautschuk. Zur Erzielung antistatischer Eigenschaften können Metallfäden eingearbeitet sein. Kleinere Anteile an Kunstfasern wie z. B. Polyester sind auch möglich. Das Substrat kann z. B. als Gewebe ausgebildet sein, das in der Kette ein Mischgarn (1) aus 80 Gew.-% Wolle und 20 Gew.-% Ramie und im Schuss Ramiefäden (2) aufweist. Textile Substrate der beschriebenen Art bieten wegen ihrer hervorragenden Wasseraufnahme und -transporteigenschaften hohen Komfort als Sitzbezüge vor allem auch an Sitzen, die oft lange Zeit ohne Unterbrechung benützt werden wie Rollstühle, Sitze in Autos und Bussen, in der Bahn und im Flugzeug sowie Bürostühle. Wegen ihrer Zusammensetzung sind die Stoffe ausserdem in sehr umweltschonender Weise entsorgbar, da sie zerkleinert bei genügend hoher Feuchtigkeit und Temperatur weitgehend oder - vor allem, wenn sie ausschliesslich aus Naturfaser bestehen - vollständig verrotten und somit kompostierbar sind.