KR100493112B1 - Manufacturing method of deep sea type composite processing - Google Patents

Abstract

The present invention relates to a manufacturing method of a deep sheath type composite processing yarn having excellent bulkiness, air content and process permeability and good stretch recovery rate and appearance in fabric production.

Among the polyester yarns with different elongation, low-strength yarns are used as core yarns, and high-strength yarns are used as weft yarns (effect yarns), and these are combined with false twist, heat setting, sea smoke and air entanglement. In manufacturing a mold composite yarn, a sheath sheath composite workpiece having a recovery ratio of 45% to 55% is manufactured under the following manufacturing conditions.

-Below-

Screening (core yarn): Fineness ratio of superfine yarn (effect yarn) = 1: 1 to 1: 3

-Single yarn fineness of screening (core): 5 denier or more

-Angle of twist at θ : 45 ° to 55 °

-Heat setting temperature: 190 ℃ ~ 210 ℃

The herbicidal composite yarn of the present invention is mainly used for clothing.

Description

Manufacturing method of deep seaweed composite yarn

The present invention relates to a sheath-type composite processing yarn and a method for producing the same, which have excellent bulkiness, air content and process permeability, and have good resilience properties (extension recovery rate) and appearance in fabric production.

The core sheath type composite yarn is mainly used for manufacturing fabrics for clothes with excellent touch and appearance.

As a conventional technique for manufacturing a core sheath-type composite yarn, first, there is a method of producing a yarn from a polybutylene terephthalate copolymer having a relatively high stretch recovery rate, and then twisting it to impart stretch characteristics.

Such a method is inexpensive due to the high cost of the copolymer used as a raw material as compared to the effect of the elastic recovery rate when the fabric is produced. Secondly, there is a method of imparting elasticity by crimping by applying one or two or more kinds of general polyester yarns while giving a lot of twist while performing false twist and heat setting at a temperature of 200 ° C. or higher.

This method has a problem that the quality of the fabric falls when only one type of yarn is used, and the quality of the fabric is improved when two or more kinds are used, but the process is complicated.

Third, a method of supplying polyester yarns of different elongation to a false twist base commercially available as a screening (core) and superfiber (effect) yarns, and combining these yarns with fumed, heat-set, fired and air-entangled It is widely used.

In more detail, after the judging and judging the judging the yarn gives a twist to the left or right. At this time, the elongated super yarn (effect yarn) is stretched in the twisting direction. After burning, heat-set it at a temperature of 150 ℃ or higher, and then dissolve the smoke and air. A fine crimp is formed in the manufactured sheath-type composite processed yarn to have bulkyness.

However, in the conventional method, since the twist angle at the time of burning is set to less than 45 °, the twisting direction of the superfine yarn (effect yarn) is insufficient. As a result, there is a problem that the bulkiness of the composite processing machine is not improved to a satisfactory level. In other words, the core sheath type composite yarn is composed of screening (core yarn) and super yarn (effect yarn) with different elongation, unlike ordinary bitumen yarn. Crimp and bulky properties are lacking.

Therefore, there is a demand for development of a manufacturing method of a deep sheath type composite yarn which is excellent in bulkiness, process passability, and the like, when the fabric is manufactured.

The present invention is to solve the problems of the prior art described above, the bulking property, the air content and the process permeability is excellent, the manufacturing method of the deep seaweed composite composite yarn to improve the resilience characteristics (extension recovery rate) and appearance of the fabric during fabric manufacturing To provide.

The present invention relates to a manufacturing method of a deep sheath composite processing yarn that is excellent in bulkiness and process passability, and improves the resilience properties (extension recovery) and appearance of the fabric during fabric production.

More specifically, the present invention uses low-strength yarns among polyester yarns having different elongation as core yarns, and high-strength yarns as superfiber yarns (effect yarns). The present invention relates to a method for manufacturing a deep-sea composite composite yarn characterized by satisfying the following conditions in manufacturing the deep-sea composite yarn.

-Below-

Screening (core yarn): Fineness ratio of superfine yarn (effect yarn) = 1: 1 to 1: 3

-Single yarn fineness of screening (core): 5 denier or more

-Twisting angle (θ) at combined combustion time: 45 ° to 55 °

-Heat setting temperature: 190 ℃ ~ 210 ℃

Hereinafter, the present invention will be described in more detail.

In the present invention, polyester yarns having different elongation from each other are used as the screening (core yarn) and super yarn (effect yarn). A low elongation polyester yarn is used as a screening (core yarn), and a high elongation polyester yarn is used as a super yarn (effect yarn).

In this case, a low yarn polyester yarn having a single yarn fineness of 5 denier or more preferably 5 to 8 denier is used as the examination (core yarn). If the single yarn fineness of the screening (core yarn) is less than 5 denier, the physical properties such as the tear strength of the processed yarn are reduced due to excessive twisting applied in the combustion process.

The elongation of the screening (core yarn) is preferably 20 to 50%, and the elongation of the superfine yarn (effect yarn) is preferably 100 to 300%. The screening and weaving are co-fired before the flammable treatment. Examination: The fineness ratio of the supercritical yarn is 1: 1 to 1: 3. When yarn fineness ratio is out of the said range, bulkiness etc. will fall. In other words, when the fineness ratio is lower than 1: 1, the bulkiness is insufficient, so that the quality of the fabric is deteriorated. When the fineness ratio is higher than 1: 3, the control of the processing process is difficult and the tear strength of the fabric is lowered. The yarn spun at the above ratio is twisted so that the twist angle is 45 ° to 55 ° in a combustor with a heater. At this time, the super yarn (effect yarn) is extended in the twisting direction to have crimp and bulkiness.

Here, the twist angle θ means the angle between the yarn axis direction and the twisted yarn surface. If the twist angle Dθ) is less than 45 °, there is a problem that the bulkiness of the composite workpiece is lowered, and if it exceeds 55 °, the machining processability is lowered. Thus twisted yarns are heat-set after heat setting at a temperature of 190 ° C. to 210 ° C., and air-interlaced by a conventional method to produce the core sheath composite yarn of the present invention. If the heat treatment temperature is lower than the above range, the heat setting effect is lowered. If the heat treatment temperature is higher than the above range, physical properties such as touch are reduced.

1 is a schematic view of a process for producing a processed yarn of the present invention.

Before supplying the twisted yarn 1 and the screened yarn 2 described above in detail to the combustible apparatus 4, the yarns are co-fired so that the fineness ratio of the screened yarn 2: the twisted yarn 1 is 1: 1 to 1: 3, The twisted yarn is supplied to the combustor 4 with the heater 3 attached thereto to impart twist. At this time, the twist angle θ shown in FIG. 2 is set to 45 ° to 55 °.

The twisted yarn is heat-set in the heater 3 having a temperature of 190 ° C to 210 ° C, and then decomposed, and then mixed with the air entanglement mechanism 5 and wound up in the winding bobbin 7.

The core sheath type composite processed yarn manufactured by the manufacturing method of this invention has the fineness ratio of screening: superfine yarn of 1: 1 to 1: 3, the single yarn fineness of screening is 5 denier or more, and the elastic recovery rate of processed yarn is 45 to 55%.

The core sheath-type composite processed yarn manufactured according to the present invention forms a lot of fine crimps, and thus has excellent bulkiness and air content, and has good resilience characteristics (extension recovery rate) and appearance when fabrics are manufactured. In addition, the production method of the present invention is very excellent in process passability.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the examples.

Example 1

Coated yarns are polyester yarns of 85 denier / 72 filaments of 150% elongation and polyester yarns of 80 denier / 12 filaments of 37% elongation. The twisted yarn is supplied to the combustible apparatus, the twist angle is given so that the twist angle θ becomes 45 °, the heat is fixed at a temperature of 195 ° C., and the sheet is twisted.

Subsequently, it winds up after air kneading process by a conventional method, and manufactures a poncho composite fiber.

Table 2 shows the results of measuring the bulkiness, wool, workability, and recovery rate of the prepared deep sheath composite yarn.

Example 2-Example 4 and Comparative Example 1-Comparative Example 3

Except for changing the fineness and elongation of the screening and weaving yarn, the twist angle (θ) and the heat setting temperature at the time of burning, as shown in Table 1, a vinegar composite composite yarn was manufactured under the same conditions as in Example 1. Table 2 shows the results of measuring the bulkiness, wool, workability, and recovery rate of the prepared deep sheath composite yarn.

<Table 1> Article

<Table 2> Property Measurement Results

In the present invention, stretch recovery rate (CR) is measured by the following method.

-Prepare the sample by winding the yarn 10 times with winding tension of 0.1g / denier,

The sample was treated in an oven at 130 ° C. for 5 minutes and then left at room temperature for 12 hours,

-Give the sample a super load (1/25 g per denier) and a static load (2 g per denier), and leave the sample for 2 minutes in water at 20 ± 2 ℃, measure the sample length (L),

-After removing static load, let stand for 3 minutes under super load and measure the sample length (L1).

Next, substitute the sample length L and L1 values measured in the following equation to obtain the stretch recovery rate.

The core sheath-type composite processing yarn manufactured by the present invention is excellent in bulkiness and air content, and thus can produce a fabric having excellent resilience characteristics (elasticity recovery rate) and appearance in fabric production.

In addition, the deep-core composite composite yarn manufactured according to the present invention is excellent in the process passability and is easy to process.

1 is a schematic view of a process for producing a processed yarn according to the present invention.

Figure 2 is a flammable state diagram of the present invention poncho composite yarn.

※ Description of the main symbols in the drawings

1: high elongation polyester yarn (super yarn)

2: low elongation polyester yarn (screening)

3: heater 4: burner

5: air interlocking mechanism 7: winding bobbin

8: flammable part 9: flammable part

θ: twist angle

Claims (3)

Among the polyester yarns with different elongation, low-strength yarns are used as core yarns, and high-strength yarns are used as weft yarns (effect yarns), and these are combined with false twist, heat setting, sea smoke and air entanglement. A method for producing a deep-core composite composite yarn characterized by satisfying the following conditions in producing the composite composite yarn. -Below- Screening (core yarn): Fineness ratio of superfine yarn (effect yarn) = 1: 1 to 1: 3 Single yarn fineness of screening (core): 5 to 8 denier -Twisting angle (θ) at combined combustion time: 45 ° to 55 ° -Heat setting temperature: 190 ℃ ~ 210 ℃ The elongation of a screening (core thread) is 20 to 50%, The manufacturing method of the core plant type composite processed yarn of Claim 1 characterized by the above-mentioned. The elongation of a superfine yarn (effect yarn) is 100 to 300%, The manufacturing method of the deep-core composite composite yarn of Claim 1 characterized by the above-mentioned.