KR20110070262A - Polyester composite yarn having melange effect and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A polyester composite yarn having melange effect and manufacturing method thereof are provided to make excellent light and shade effects according to a thickness difference and luster of flat yarns. CONSTITUTION: A polyester composite yarn having melange effect includes a flat thick drawn yarn and a circular partially oriented yarn. The flat thick drawn yarn is gained by spinning flat yarns of mono 0.3-4.0de and degree of non circular shape of 2.0-20.0 in a spinneret. A drawing temperature of the flat thick drawn yarn is 45-55°C. A thermal annealing temperature of the flat thick drawn yarn is 75-85°C. A drawing ratio of the flat thick drawn yarn is 1.4-2.0.

Description

Polyester composite yarn having melange effect and manufacturing method

The present invention relates to a polyester composite yarn having a melange effect and a method for manufacturing the same, and more particularly, to use a polyester release composite yarn, which spin-spun flat-stretched stretched yarn and circular partial stretched yarn to express soft glossiness and melange It relates to a polyester composite yarn and a method for producing the same that can exhibit the effect.

Melange is usually derived from the French melange, which means 'mixed, mixed' and so on. Melange effect in the technical field of the present invention refers to an effect such as a mixture of a variety of colors, such a melange effect gives a soft touch to the fiber and makes the gloss to show the luxury and can be used for various purposes.

Therefore, various methods for imparting such a melange effect have been proposed. For example, "Semi-shrink blended yarn having excellent melange effect and its manufacturing method" of Korean Patent Application No. 2003-0018060 has different dyeing characteristics. Two-component composite yarns composed of two or more fiber-forming components or two or more two-component composite yarns (super yarns) composed of fiber-forming components and elution components having different dyeing characteristics of the fiber-forming components are thermoplastic multi The two-component composite yarn loop having a form in which the filament is wound, the two-component composite yarn having a single yarn fineness of 0.001 to 0.3 denier after splitting or eluting component elution, and having a length of 1.0 mm or more on the surface of the blended yarn, Melange effect, characterized in that 95% or more of the two-component composite yarn loop having a length of 350 mm / m and having a length of 1.0 mm or more has a length of 1.0 to 2.5 mm. Is known to have excellent biaxially blended yarn (ATY), and Korean Patent Application No. 2005-0008471 can be dyed with a cation dye to provide a composite yarn useful for producing melangeon stretchy knit fabrics. In a polyester two-component composite yarn in which two other polyester polymers are compounded, one component of the two components is polyethylene terephthalate, and the other component is copolymerized with a compound having the structure of general formula (I). The latent crimping polyester two-component composite yarn having a melange effect, which is a cationic dye salt type copolyester. However, the former method is to manufacture a composite yarn in two stages, the process is complicated, there is a problem that the manufacturing cost increases due to the use of expensive modified chips, the latter method is not only to use expensive modified chips There is a problem that there is a difficulty in radiation. In addition, the Republic of Korea Patent Application No. 2006-0068370 "method of manufacturing acetate fiber-coated polyester air interlacing yarn having a superior melange effect" is "first yarn using a flat cross-section polyester multifilament yarn, a second yarn bent cross-section poly Interlacing using ester multifilament yarn, but using a total fineness of 40 ~ 150 denier of the first yarn and the second yarn, respectively, the weight ratio of the first yarn and the second yarn is 35:65 ~ 65:35 It is disclosed that the "method of producing a acetate fiber-based polyester air entangled yarn exhibiting an excellent melange effect, characterized in that, but this method has a disadvantage in that the light gray effect is reduced to produce a composite yarn in two steps.

Therefore, the present inventors use a yarn of a specific configuration by earnestly researching in order to solve the problems in the technique for imparting the melange effect as described above, and thus can produce a composite yarn which solves the above-mentioned problems. To complete.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art in imparting the melange effect as described above to provide a polyester composite yarn having a melange effect that can provide an excellent melange effect without a cost increase by a simpler process. It is to.

Another object of the present invention is to provide a method for more easily manufacturing a polyester composite yarn having a melange effect of the above characteristics.

The present invention may also be aimed at achieving, in addition to the above-mentioned specific objects, other objects which can be easily derived by those skilled in the art from this and the overall description of the present specification.

Polyester composite yarn having a melange effect of the present invention for achieving the above object;

Mono 0.3 to 4.0de mold release degree 2.0 to 20.0 is characterized in that it was produced by concentrating the circular partial stretched yarn obtained by lubricating using the flat stance stretched yarn and the lubrication guide obtained by spinning the flat yarn of the guide.

According to another configuration of the present invention, the stretch posture drawn yarn is characterized in that the stretching temperature is 45 to 55 ℃, the heat treatment temperature is 75 to 85 ℃ draw ratio is obtained by 1.4 to 2.0.

According to still another aspect of the present invention, the flat pore drawn yarn and the circular partial drawn yarn are characterized in that they are drawn by passing oil feed rollers having different porosity.

Polyester composite yarn having a melange effect of the present invention configured as described above and a method for manufacturing the same are used through the lubrication rollers having different porosity, so that the degree of adhesion of the oil agent is different, so that the stretching efficiency is regularly used. Therefore, the present invention provides a polyester composite yarn having a melange effect, in which glossiness according to diffuse reflection of flat yarns and lightness of yarns are excellently expressed.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail by preferred embodiments as follows.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross sectional and longitudinal sectional view of a lubrication roller used to produce a flat pore drawn yarn according to a preferred embodiment of the present invention.

As described above, according to a preferred embodiment of the present invention, the polyester composite yarn having the melange effect of the present invention emits a mono yarn of 0.3 to 4.0 denier (de), a flat yarn having a mold release degree of 2.0 to 20.0, through a spinneret, and spinning As shown in Fig. 1, the flat yarn is drawn through the oil feed rollers having different porosity densities and is drawn in the roller. Thus, the flattened stretched yarn is obtained. On the one hand, yarns spun through separate spinnerets in the same spinner are passed through a refueling guide to obtain partially drawn yarns via separate bypassed apostles.

According to the present invention, the flattened stretcher attaches the oil using an oil feed roller located above the migration nozzle instead of the normal oil feed guide, and in this case, oil feed rollers having different pore densities for each side (see cross-sectional view in FIG. 1). Manufactured by varying the degree of adhesion of the emulsion, this results in a posture drawn yarn in which the drawing efficiency of the drawn yarn changes regularly.

The flat pore drawn yarn and the circular partial drawn yarn obtained as described above are entangled at the focusing nozzle after passing through the high-speed roller to obtain a polyester composite yarn having excellent melange effect.

According to another embodiment of the present invention, it is preferable that the stretching posture drawn yarn has a drawing temperature of 45 to 55 ° C, a heat treatment temperature of 75 to 85 ° C, and a drawing ratio of 1.4 to 2.0. When the draw ratio of the flat stance stretcher is less than 1.4 or more than 2.0, the melange effect does not appear properly, which is not preferable.

In addition, the spinning speed of the flat poise drawn yarn is preferably 1500 to 2000mpm.

The posture drawn yarn used according to the preferred embodiment of the present invention is excellent in lightness and resilience, and excellently expresses the melange effect of imparting soft luster to polyester fibers having excellent post-processing properties.

Hereinafter, the present invention will be described in more detail with reference to one embodiment, but the scope of the present invention is not limited thereto.

Example 1

The polyester polymer having an ultimate viscosity (η) = 0.652 having a titanium dioxide content of 0.4 wt% was spun at a spinning temperature of 285 ° C., and then passed through oil feed rollers having different porosity to give an emulsion. The yarn thus spun was drawn at 1.67 times in a high speed roller having a surface temperature of 50 ° C. and passed through the high speed roller at a speed of 3500 m / min to produce a 150 denier drawn yarn. In addition, 85 denier partially drawn yarn was manufactured by spinning the same polymer through separate detention in the same spinner, giving an oil agent in the oil supply guide, and passing the high speed roller at 3500 m / min through the bypassed apostle. The drawn yarn and the partially drawn yarn were thus entangled with a focusing nozzle to produce a composite yarn. At this time, the drawing company used a flat section detention with a degree of release of 9.7. After the obtained composite yarn was twisted at a speed of 900T / m to prepare a fabric having a melange effect in a conventional manner.

Example 2

The polyester polymer having an ultimate viscosity (η) = 0.652 having a titanium dioxide content of 0.4 wt% was spun at a spinning temperature of 285 ° C., and then passed through oil feed rollers having different porosity to give an emulsion. The yarn thus spun was stretched twice in a high speed roller having a surface temperature of 50 ° C. and passed through the high speed roller at a speed of 4000 m / min to produce a 150 denier drawn yarn. Also, 85 denier partially drawn yarn was manufactured by spinning the same polymer through separate detention in the same spinner to impart an emulsion from the lubrication guide and passing the high speed roller at 4000 m / min through the bypassed apostle. The drawn yarn and the partially drawn yarn were thus entangled with a focusing nozzle to produce a composite yarn. At this time, the drawing company used a flat section detention with a degree of release of 9.7. After the obtained composite yarn was twisted at a speed of 900T / m to prepare a fabric having a melange effect in a conventional manner.

Example 3

The polyester polymer having an ultimate viscosity (η) = 0.652 having a titanium dioxide content of 0.4 wt% was spun at a spinning temperature of 285 ° C., and then passed through oil feed rollers having different porosity to give an emulsion. The yarn thus spun was drawn at 1.67 times in a high speed roller having a surface temperature of 50 ° C. and passed through the high speed roller at a speed of 3500 m / min to produce a 150 denier drawn yarn. In addition, the same polymer was spun in a separate spinner in the same spinning machine to give an oil in the oil supply guide, and then the Goden roller was passed through 3500 m / min through the bypassed apostle to manufacture 85 denier partially drawn yarn. The drawn yarn and the partially drawn yarn were thus entangled with a focusing nozzle to produce a composite yarn. At this time, the drawing company used the flat section detention of release degree 15.3. After the obtained composite yarn was twisted at a speed of 900T / m to prepare a fabric having a melange effect in a conventional manner.

Comparative Example 1

A fabric was prepared in the same manner as in Example 1 except that the stretched yarn was spun through a circular cross section.

Comparative Example 2

A fabric was prepared in the same manner as in Example 1 except that the stretched yarn was stretched 3.0 times.

Experimental Example

The glossiness and lightness effect of the fabric using the composite yarn prepared according to the above Examples and Comparative Examples were evaluated as follows, and the results are shown in Table 1 below.

(1) glossiness

① Excellent glossiness compared to existing products (◎)

② When gloss is inferior to existing products (×)

(2) joke effect:

① When the shade effect is better than the existing product (◎)

② If the effect of joke is lower than the existing product (×)

division Luster A joke effect Example 1 ◎ ◎ Example 2 ◎ ◎ Example 3 ◎ ◎ Comparative Example 1 × ◎ Comparative Example 1 ◎ ×

In Examples 1 to 3, the glossiness and lightness effect are simultaneously expressed, and thus, excellent melange effect may be exhibited.

1 is a cross sectional view (a) and a longitudinal sectional view (b) of a lubrication roller used to produce a flat pore drawn yarn according to a preferred embodiment of the present invention.

Claims (3)

Mono 0.3 to 4.0de detention degree of the degree of melange effect, characterized in that it was manufactured by concentrating the circular post-stretched yarn obtained by lubricating using a flat stance stretched yarn and the lubrication guide obtained by spinning the flat yarn of 2.0 to 20.0 Polyester composite yarn. The polyester composite yarn having a melange effect according to claim 1, wherein the flat pore drawn yarn and the circular partial drawn yarn are drawn by passing oil feed rollers having different porosity. The polyester composite yarn having a melange effect according to claim 1 or 2, wherein the flat pore drawn yarn is obtained by a drawing temperature of 45 to 55 ° C and a heat treatment temperature of 75 to 85 ° C. .

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