Method of apparatus for the thermal treatment of textiles articles
AssigneeAsa S.A.
InventorJean Venot
Life of this patent
Estimating the term…
Abstract
A method and apparatus for the thermal treatment of textile articles in which a moving yarn is delivered from a yarn supply and a main thermal treatment is carried out in a conventional manner by contact with a heated oven, the yarn is cooled and a false twist is applied which feeds back to the main thermal treatment zone. The yarn is then subjected to a further heat treatment and the untwisted yarn is rewound. The yarn is subjected to a complementary heat treatment before and/or after the main thermal treatment by wetting the yarn and then heating it by high frequency heating.
Claims7
In a method of texturising a moving yarn which comprises the steps of continuously:
- (a) delivering a moving yarn from a yarn supply;
- (b) carrying out a first thermal treatment on the yarn;
- (c) cooling the yarn and communicating to it a false twist which feeds back to the first thermal treatment zone;
- (d) subjecting the yarn to a further heat treatment;
- and
- (e) rewinding the untwisted yarn;
- the improvement comprising:
- (f) subjecting the yarn to a complementary treatment comprising the steps of wetting the yarn and then heating it by high frequency heating, said complementary treatment being effected at least between the first thermal treatment and the false twist spindle in order to cool the yarn.
In an apparatus for texturising a moving yarn of the type comprising:
- (a) means for storing a supply of yarn;
- (b) yarn delivery means;
- (c) first thermal treatment means;
- (d) yarn cooling means;
- (e) false twist producing means;
- (f) further thermal treatment means;
- and
- (g) withdrawal and rewinding means;
- the improvement comprising:
- (h) complementary treatment means comprising means for wetting the yarn and means for subjecting the yarn to a high frequency yarn heater, said complementary treatment means being positioned at least after said first thermal treatment means and before said false twist producing means.
Dependencies are inferred from the claim text.