WO2006108365A1

WO2006108365A1 - Yarn for production of blue-jeaned fabric with the effect of gradual abrasion from the original shade into another

Info

Publication number: WO2006108365A1
Application number: PCT/CZ2006/000019
Authority: WO
Inventors: Ivo Kopecky
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-14
Filing date: 2006-04-12
Publication date: 2006-10-19
Anticipated expiration: 2007-10-14
Also published as: CZ15706U1

Abstract

The solution concerns the yarn for production of blue-jeaned fabric with the elected colour effect. The gist of the solution is that the resulting yarn is constituted by the core spidleless staple yarn and on its surface is rotor-spun staple yarn with the dyeing different from the dyeing of the core spindleless staple yarn which result in the two-color effect for the resulting yarn.

Description

Yarn for production of blue-jeaned fabric with the effect of gradual abrasion from the original shade into another

Field of technology

The technical solution applies to the yarn designed for production of blue-jeaned fabric with the specific colour effect. The colour effect of blue-jeaned, possibly jean products occurs after they have been worn by a user for a certain period of time, when the original shade of the warp component of the fabric abrases into another shade, possibly into the natural colour.

Existing technical status

In order to dye warp ends of blue-jeaned fabric with the effect of gradual abrasion of one colour into another, currently complex dyeing is used that consists of several production stages, which also means significant technological costs. Dyeing is followed by chemical and/or mechanical treatment of warp ends aimed to achieve the two-colour effect. Special developed and modified dyes are also used for this purpose in order to enable the colour effect, possibly to enable its formation in the short period of use of a textile product.

Therefore, the purpose of the technical solution is to design a different process of preparation of warp ends showing the effect of gradual abrasion of one colour into another, e.g. from the original dyeing using the indigo shade also called denim into the natural shade.

Principle of technical solution

The above-mentioned goal according to the technical solution has been achieved using a structure of rotor yarn formed by two components; the first of them is the core spindleless staple yarn and the other component is the effect spindleless staple yarn which is spun around the surface of the core yarn, while the two-colour effect of the resulting rotor yarn is achieved by the of different dyeing for the core and effect yarns.

This structure of the resulting rotor yarn enables to achieve easily many different colour variants with gradual abrasion of the shade of the effect layer of the yarn to the shade of the core yarn. The technology of production of the two-component rotor yarn is also more cost-advantageous compared to the existing state of technology.

The two-component spindleless staple yarn may be solely cotton or blended, mainly from the blend of cotton and polyester or entirely from the blend of cotton and polyester.

The technical solution is also characterized in the fact that the yarn count of the core spindleless staple yarn ranges from 30 to 70 tex, while the yarn count of the effect spindleless staple yarn ranges from 10 to 50 tex. Examples of implementation of the technical solution

The following specific examples give some of the potential construction applications of the spindleless staple yarn according to the technical solution.

Example 1

For production of blue-jeaned fabric with denim shade, the yarn containing 100% cotton part spun on the spindleless spinner was used for the warp. This yarn with resulting 430 twists per meter of length includes two components; first of them is cotton core spindleless staple yarn with staple ranging from 16 to 40 mm, yarn count 50 tex, 590 twists per meter of length in natural colour and the other component of the resulting yarn is cotton staple fibre with staple 16 to 40 mm, yarn count 30 tex, lock-dyed to navy blue while this second component of the resulting yarn is rotor-spun on the surface of the core spindleless staple yarn with the selected twist of 420 twists per meter of its length. This warp spindleless two-component staple yarn is made by spinning on the spindleless spinner modified for rotor spinning with core-spinning, e.g. REETER - BT 904, type ROTONA. The core yarn is brought to the rotor of the machine through the tube and hollow bearing and the core yarn is covered with the fibers of the second component of the resulting two-component spindleless staple yarn. The second component is the effect spindleless staple yarn. The resulting spindleless staple yarn is detached from the rotor of the machine using a classic method via a funnel, tube and detaching roller on a winding roller and a bobbin.

In order to obtain the weft thread for the production of blue-jeaned fabric, standard raw cotton yarn with yarn count 60 tex can be used, because the weft is located on the back face of the fabric. In the alternative case of the blue-jeaned fabric finish, the raw spindleless cotton rotor yarn with the core of total yarn count 50 to 70 tex may also be applied to the weft. The resulting two-component spindleless staple yarn used in the warp is abrased into the natural shade of the core yarn on the final blue-jeaned product.

Example 2

For the production of the resulting core yarn, spindleless yarn 50 tex in natural colour blended with polyester, which helps to achieve the required yarn strength, is used for the core. The spun staple effect yarn on the core yarn is from cotton, 30 tex, in denim shade. That way the resulting yarn with the core in natural colour is created, which is abrased into the natural colour of the core yarn on the final blue-jeaned product.

Example 3

The resulting two-component spindleless staple yarn according to the example 2 with the difference that the regenerate obtained from shredded rags is used as an initial material for the spun staple effect yarn. Example 4

The resulting two-component spindleless staple yarn according to example 2 with the difference that a couple of the specified core yarns are plied together for the use in the warp.

Example 5

For the production of the resulting warp yarn with a core, red spindleless yarn 50 tex is used for the core, with the effect spindleless staple yarn 30 tex with denim shade spun on the surface. The product manufactured from such resulting warp yarn would abrade into red colour which means a non-conventional colour concept of the goods and potential fashion hit.

Claims

00019REQUIREMENTS ON PROTECTION

1. The yarn for the production of blue-jeaned fabric with the effect of gradual abrasion of the original shade to another shade, characterized in being constituted by the core spindleless staple yarn with the surface rotor-spun with the effect spindleless staple yarn with the dyeing different from the dyeing of the core spindleless staple yarn which results in the two-colour effect for the resulting yarn.

2. The yarn for the production of blue-jeaned fabric according to the requirement 1, characterized in being constituted by the core spindleless staple yarn and/or effect spindleless staple yarn from cotton.

3. The yarn for production of blue-jeaned fabric according to the requirement 1, characterized in being constituted by the blended core spindleless staple yarn and/or effect spindleless staple yarn, mainly from the blend of cotton and polyester, possibly entirely from the blend of cotton and polyester.

4. The yarn for production of blue-jeaned fabric according to the requirement 1, characterized in being constituted by the core spindleless staple yarn with the yarn count from 30 to 70 tex, while the effect spindleless staple yarn has the yarn count from 10 to 50 tex.

5. The yarn for the production of blue-jeaned fabric according to the requirement 1, characterized in being constituted by the core yarn from cotton or blend and the effect yarn from the regenerate dyed into denim shade before shredding.