KR100643174B1 - Manufacturing method of rich dyeing polyester interlace yarn - Google Patents

Abstract

A manufacturing method of a rich dyeing polyester interlace yarn is provided to solve the problems such as the whiteness or the weft bar and the like at the post-process. The first polyester fiber is manufactured by a spin draw method under the spinning speed of 3,000-4,000 m/min and elongation of 1.2-1.8. The first process is performed by the first godet roller of 80-90 degrees in centigrade, the second godet roller of 95-130 degrees in centigrade and the speed of 5,000 m/min without interlacing. The first polyester fiber is interlaced with the second polyester fiber manufactured by micro-fiber.

Description

Manufacturing method of rich dyeing polyester interlace yarn

The present invention relates to a method for producing a highly salty polyester interlaced yarn, and more particularly, to a method for producing a salty polyester interlaced yarn by changing the spinning conditions to improve the knitting, weaving and dyeing of the interlaced yarn. will be.

Interlaced yarn or bishrink blended fiber is interlaced with two or more types of filament fibers with different shrinkage properties to give bulky and fancy properties to the fabric due to differences in shrinkage properties and dyeing properties of the two fibers after weaving and processing. It is one of the differentiating yarns.

Polyester yarn manufactured by spinning at a spinning speed of 1,200 to 2,200 m / min, stretching at a stretching ratio of 2.5 to 3.5, air entangled and wound at a winding speed of 4,000 to 5,000 m / min as one of the conventional interlaced yarns. Interlaced with ordinary microfiber

There are interlaced yarns used for circular knitting (single plate) and for fabric (twisting, pitch skin after sizing).

In such interlace yarns, the conventional interlace yarns produced as described above are not uniform in physical properties and have poor dyeing properties, resulting in whiteness (weaving difference) during weaving dyeing, and 30% level above the circular knitting dyeing. There were many problems such as this, which caused a large amount of claims.

In order to improve this problem, the cost increase cannot be avoided because it must be used after a separate heat treatment and processing using a drawing machine or a combustor.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to solve the problems in the post-process such as whiteness or upper stage and to reduce the cost of high-concentration polyester interlace yarn To provide a method of manufacturing.

In the method for producing a highly salty polyester interlaced yarn of the present invention, in the high-speed spinning of polyester by the spin draw method, the spinning speed is 3,000 to 4,000 m / min, the stretching ratio is 1.2 to 1.8, and the high pitch roller temperature is reduced. The first polyester yarn is 80 to 90 ° C. and the second high bolt 95 to 130 ° C. and is wound at a speed of 4,500 to 5,000 m / min without air entanglement to prepare a first polyester yarn, and the first polyester yarn is general It is characterized by interlacing with the second polyester yarn made of polyester microfiber.

The present invention will be described in more detail below.

In the method of the present invention, firstly, the first polyester yarn is manufactured by high-speed spinning of the spin draw method. Unlike the conventional method, the draw ratio is increased to 1.2 to 1.8 instead of raising the initial spinning speed to 3,000 to 4,000 m / min. While lowering, the high roller temperature is set to 80 to 90 ° C. for the first high bolt and 95 to 130 ° C. for the second high bolt, and the final winding speed is increased to 4,500 to 5,000 m / min.

The spinning speed, the high roller temperature, the winding speed and the draw ratio are the appropriate range for producing the optimum physical properties of the polyester yarn of the present invention when out of the above range causes problems such as whiteness or cracking in the post process as in the prior art. do.

In the present invention, in particular, unlike the prior art, it is characterized in that the air is not interlaced after stretching. The air entanglement may cause a flaw in the knitting of the post-process, but inevitably, the air entanglement can be omitted in the present invention.

In the present invention, the fineness of the first polyester yarn spun as described above is preferably 30 to 100 denier. Outside the above range, the desired physical properties are not expressed.

The first polyester yarn prepared as above is interlaced with a second polyester yarn made of ordinary polyester microfiber prepared separately. At this time, a conventional method may be applied to the interlacing method or condition. It is preferable that the four specifications of the second polyester yarn have a total fineness of 50 to 150 deniers and a single fineness of 0.5 to 2.5 deniers. If it is out of the above range, the desired physical properties and fairness cannot be obtained, and whiteness or cracking occurs in a later process.

Hereinafter, examples and comparative examples of the present invention will be described. However, the following examples are only intended to illustrate the present invention and should not be understood as limiting the scope of the present invention.

Example 1

With the final target fineness of 50d / 36f, the spin speed method yields a spinning speed of 2,900 m / min, a high-speed roller temperature of 87 degrees for the first goth, 99 degrees for the second goth, an elongation ratio of 1.65, and a winding speed of 4,820 m / min. After stretching, a first polyester yarn was produced without air entanglement.

General polyester microfiber (POY) of 85d / 72f, which is a second polyester yarn manufactured separately from the first polyester yarn, was interlaced under ordinary conditions to complete the thick salt polyester interlaced yarn of the present invention.

(Comparative Example 1)

With the final target fineness of 50d / 36f, the spin speed method yields a spinning speed of 1,540 m / min, a high-speed roller temperature of 91 degrees for the first gond, 125 degrees for the second goth, an elongation ratio of 2.8, and a winding speed of 4,200 m / min. After stretching, air entangled at 16 / m of entanglement to prepare a first polyester yarn.

The first polyester yarn was interlaced with ordinary polyester microfiber (POY) of 85d / 72f, a second polyester yarn prepared separately, under ordinary conditions to prepare a polyester interlaced yarn.

 (Comparative Example 2)

With the final target fineness of 50d / 36f, the spin speed method yields a spinning speed of 1950 m / min, a high speed roller temperature of 87 degrees for the first gond, 99 degrees for the second goth, an elongation ratio of 2.20, and a winding speed of 4,800 m / min. After stretching, the air was entangled at 14 / m of entanglement to prepare a first polyester yarn.

The first polyester yarn was interlaced with ordinary polyester microfiber (POY) of 85d / 72f, a second polyester yarn prepared separately, under ordinary conditions to prepare a polyester interlaced yarn.

The physical properties of the first polyester yarn and the final interlace yarn prepared in the above examples and comparative examples were analyzed and shown in the following [Table 1] and [Table 2].

Physical properties of the first polyester yarn    division  Total fineness (De)   Strong (g / d)   Elongation (%) Non-shrinkage rate (%)     Thermal stress   ℃   gr   Example 1 52.3 4.32 43.7 21 113 17.39   Comparative Example 1 49.2 4.67 29.5 8.6 157 15.35   Comparative Example 2 49.3 4.83 30 14.5 93 11.59

Properties of Interlaced Yarn    division  Total fineness (De)   Strong (g / d)   Elongation (%) Non-shrinkage rate (%)     Thermal stress   ℃   gr   Example 1 137.6 2.07 43.6 50.1 83 20.99   Comparative Example 1 137.5 2.6 79.5 48.1 80 14.58   Comparative Example 2 134 2.26 50.8 53 85 25.24

As shown in Table 1 and Table 2, the interlaced yarn according to Example 1 of the present invention shows a difference in elongation and non-shrinkage rate compared to the fibers according to the prior art of Comparative Examples 1 and 2, thereby No whiteness or stomach occurred in

As described above, according to the present invention, there is an effect of providing a highly salty polyester interlaced yarn that can solve the problems in the post-process such as whiteness or stomach and reduce the cost.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and variations belong to the appended claims. .

Claims (3)

In the high-speed polyester spinning by the spin draw method, the spinning speed is 3,000 to 4,000 m / min, the stretching ratio is 1.2 to 1.8, and the high roller temperature is 80 to 90 ° C. for the first high bolt and the second high bolt 95 To 130 ° C., winding at a rate of 4,500 to 5,000 m / min without air entanglement to produce a first polyester yarn, and interlacing the first polyester yarn with a second polyester yarn made of ordinary polyester microfiber yarn. A process for producing a highly salty polyester interlaced yarn. The method of claim 1, The fineness of the first polyester is 30 to 100 denier, characterized in that the manufacturing method of the concentrated salt interlaced yarn. The method of claim 1, The fineness of the second polyester has a total fineness of 50 to 150 denier, single yarn fineness is 0.5 to 2.5 denier method of producing the thick salt polyester interlaced yarn.