THIS YARN The Related Art

The invention relates to a novel yarn bringing a novel effect (appearance) to fabrics and clothes.

The invention particularly relates to obtaining a novel yarn by wrapping undyed cotton fibres around a yarn dyed by indigo or a different dyestuff. As a result of exposing the clothes made of the fabrics obtained from the said novel yam to mechanical and/or chemical processes, a different appearance is obtained which would provide added value to the product. The Prior Art

Nowadays, various fabric combinations are present, which are obtained by methods of weaving or knitting with various materials and yams of various qualities. While obtaining these combinations, various applications can be made on yarns. These can be both chemical and mechanical applications.

Among the prior applications, there are some applications, in which a different yam is placed at the centre of the final yam. One of these is the core-spun yam comprising polyurethane monofilament at its centre. This application is used for providing elastic property to the yarn.

Another one of the prior applications is the core-spun yams wherein PTT, PBT, T400 etc. filaments are placed at the centre of the final yarn. This application is also used for providing elastic property to the yam. At the same time, this application is used for improving the recovery figures of the yam. In another example of the prior art; in the patent document with no US4613336 (A) and title: "Knitted fabric produced from indigo-dyed yam", the invention relates to indigo dyed cotton yarn for production of dyed cotton tricot indigo and relates to the method of its production. None of these applications is made for obtaining a different appearance in the fabric. These products are used for bringing elasticity and/or recovery etc. performance properties to the yam and thus the fabric. In these applications, the filaments placed at the centre of the yam are generally preferred as undyed. It is also possible to prefer as dyed, but in this case, desired appearance can not be achieved as a result of exposing the clothes made of the fabric obtained by using these yams to mechanical and/or chemical processes due to the structure of the dyestuff used in dying of these filaments.

As a result, the need for the said yam produced by wrapping undyed cotton fibres around a yam dyed with indigo or a different dyestuff and the fabric obtained by using this yam, and the inadequacy of the present solutions have necessitated improvement in the related technical field.

Purpose of the Invention

In order to eliminate the drawbacks of the prior art, a purpose of the invention is to form the novel yam by wrapping undyed cotton fibres around the indigo dyed yam during the process of spinning from strand in the ring spinning machine.

Another purpose of the invention is to provide a novel appearance to cloth. In order to achieve the above said advantages, the invention is the method of obtaining a final yarn in the spinning process, and it comprises obtaining final yam (10) by wrapping cotton and/or regenerated cellulosic fibres (12) around at least one inner yam (11 ). Again the invention is the yarn (10) obtained with the said method.

Again the invention is the fabric obtained by weaving or knitting of the said yam (10)

The structural and characteristic features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations. Description of the Figures

Figure 1 is the detail view of the yarn, which is the subject of the invention. Reference Numbers

Detailed Description of the Invention

The invention relates to forming the said novel core yam (10) as a result of wrapping the undyed cotton fibres (12) around the inner yam (11) preferably dyed with indigo during the process of spinning yam from strand in the ring spinning machine. The said formed novel yarn (10) is brought into fabric form by weaving or knitting technology. When mechanical and/or chemical processes are applied to the clothes made of this fabric, a novel appearance is given and added value is provided to the cloth by the transfer of the dyestuff from the yam (11 ) preferably dyed with indigo and found in the yam (10) forming the fabric to the undyed regions of the fibre (12) or by making the indigo dyed yam (11), which would be in masked state as a result of being wrapped by cotton fibres (12), visible from outside by mechanical operations.

In Figure 1 , the detail view of the yam (10) of the invention is given. According to the figure, the said coloured cotton yarn (11) is dyed with indigo dyestuff and it is placed at the centre of the final yam (10). When the clothes manufactured from the fabrics made of this final yam (10) is exposed to mechanical and/or chemical processes, a novel appearance is given to the cloth by transfer of the dyestuff of the indigo dyed yam (11) to the fibres (12) preferably not comprising dyestuff and/or by making the same inner yarn (11 ) visible from outside as a result of mechanical operations.

Indigo dye is a kind of vat-dye having different properties from normal dye. It is a different property from other dyes that the dyestuff in indigo dye has low diffusion into cellulosic fibre (internal yam) (11 ). Therefore, dying operation of the yam (11) is repeated in more than one vats. In other words, the yarn (11) passing through the indigo dye vats is dyed, then oxidized by being lifted up to a certain height, and then dyed again. Dyestuff does not diffuse into the yarn (11) and simply forms a layer around it. Again, as it would be seen in Figure 1 , undyed cotton fibres (12) are the cotton fibres preferably dyed with indigo dyestuff, wrapped around the yam (11 ), and preventing its visibility from outside. It masks the indigo dyed yam (11 ) until the cloth is exposed to mechanical and/or chemical processes. When the chemical and/or mechanical operation is applied, the indigo dyestuff is transferred onto it and its colour changes.

Via the cotton fibres (12) wrapped around the coloured inner yam (11 ), the yam (11 ) dyed with indigo dyestuff is left at the centre of the final yam (10) and thus it can not be seen from outside. After knitting of cloth with the fabric obtained with this yarn (10), when mechanical and/or chemical operations are applied, the indigo dyestuff dyes the undyed regions and/or the inner yam (11 ), itself, is made visible from outside via mechanical operations. In this way, a different and value-added appearance is given to the cloth.

Alternatively; the inner yarn (11) dyed with indigo dyestuff and then wrapped with undyed cotton fibres (12) can also be dyed with sulphur dyestuff, indigo + sulphur dyestuff, reactive dyestuff, or indanthrene dyestuff instead of dying with indigo dyestuff.

Again, alternatively; it is also possible to use cotton fibres (12) dyed with different colours instead of using the undyed cotton fibres (12) masking the yam (11 ) dyed with indigo dyestuff.

Again, alternatively; it is also possible to use dyed / undyed regenerated cellulosic fibres instead of using the undyed cotton fibres (12) masking the yam (11) dyed with indigo dyestuff.

The protection area of this application has been specified under claims and cannot be limited to the descriptions only given as sampling above. It is obvious that a person skilled in the related art can apply the innovation disclosed by this invention into similar purposed other areas by means of changing the parts in form and using similar structures. Therefore, it is also clear that such embodiments lack of innovation criteria and especially the criteria of exceeding the known status of the art.