KR102088110B1 - Process Of Producing Polyester Draw Textured Yarn Containing Basalt Having Excellent Exothermic Property - Google Patents

Abstract

The present invention relates to a method for manufacturing an exothermic polyester composite false twist yarn which is prepared by performing false twisting and interlacing of basalt containing polyethylene terephthalate filaments as an effect yarn and polypropylene undrawn filaments as a core yarn. According to the present invention, the yarn has functionality exhibiting exothermic properties and heat retention properties, has excellent durability and heat retention properties, and applies high stretchability, thereby being used for fabrics or knitted fabrics for winter clothing.

Description

Process of Producing Polyester Draw Textured Yarn Containing Basalt Having Excellent Exothermic Property}

The present invention relates to a method for producing a basalt-containing polyester composite twisted yarn having excellent exothermic properties, which is interlaced after twisting a basalt-containing polyethylene terephthalate filament as an effect yarn and a polypropylene unstretched filament as a screening.

Recently, with extreme weather due to global warming, efforts to develop eco-friendly products are increasing all over the world. In order to cope with climate change caused by the warming phenomenon, the government is demanding the development of new materials that can reduce the generation of carbon dioxide and save energy. We are developing a new concept of photo-heating material by combining technology.

The products of various types of heating fibers currently released in Korea are materials that have high absorption rate in the short wave region over 95% of infrared light and visible light by zirconium carbide and zirconium oxide. Is developing fiber products that absorb 95% of light, convert it into thermal energy, reflect it into clothing, and regenerate thermal energy in clothing.

In addition, mineral rock containing elvan, basalt, meteorites and zeolite-based inorganic metal oxide components is provided in a synthetic fiber to provide a fiber product that emits far infrared rays.

These photothermal fiber products accumulate solar thermal energy and radiate it back to the human body to bring about a rise in temperature. The photothermal fiber product uses zirconium carbide and zirconium oxide, which are materials that actively absorb sunlight from metal compounds. In other words, zirconium carbide and zirconium oxide are incorporated into the core of the fiber to make a composite fiber, or the fiber is developed by dispersing and incorporating it into a coating or laminate resin film.

These fibers have a tendency to deteriorate the durability due to the drastic deterioration of durability due to washing and friction during fabric or knitted fabrics due to the desorption of fine particles contained in the fiber during processing, and the lack of elongation of the fiber itself. It was difficult to deploy to a variety of products.

Republic of Korea Patent Registration No. 10-1778510 (Announcement on September 15, 2017)

Therefore, according to the present invention, it is a technical problem to provide a polyester composite twisted yarn having excellent light heating effect, excellent durability and insulation, and excellent stretchability.

Therefore, according to the present invention, the basalt-containing polyethylene terephthalate filament is passed through the first feed roller to the third feed roller as an effect yarn,

The polypropylene unstretched filament is passed through the second feed roller to the fourth feed roller by screening,

After heat-treating the effect yarn and the screening at a heat treatment temperature of 150 to 160 ℃ in the heater, and then by the combustion apparatus TPM 500 ~ 800,

Provided is a method for producing a basalt-containing polyester composite twisted yarn having excellent heat generation, characterized in that the effect yarn and the screening are interlaced with air pressure of 1.0 to 1.2 bar and then wound at a yarn speed of 500 to 550 m / min.

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

The basalt-containing polyester composite twisted yarn having excellent exothermicity of the present invention is produced by interlacing a basalt-containing polyethylene terephthalate filament as an effect yarn using a polypropylene unstretched filament as a screening.

As shown in FIG. 1, the present invention feeds the basalt-containing polyethylene terephthalate filament into the third feed roller 4 through the first feed roller 3 as the effect yarn 1, and the polypropylene unstretched filament ( 2) is passed through the second feed roller (5) and supplied to the fourth feed roller (6), and the effect yarn and screening are heat-treated in the heater (7) at a heat treatment temperature of 150 to 160 ℃, and then by a combustor After twisting with TPM 500-800, the effect yarn and the screening were interlaced at 1.0-1.2 bar of air pressure, and then wound at 500-550 m / min. To produce a basalt-containing polyester composite twisted yarn having excellent heat generation.

The effect of the basalt-containing polyethylene terephthalate filament is a polyethylene terephthalate containing 1 to 3% by weight of basalt microparticles having a particle size of 500 ~ 5,000 ㎚ is absorbed by sunlight to convert into thermal energy, which is the infrared wavelength of the human body It is preferable to express the exothermic effect of composite twisted yarn by radiating in the form of far infrared rays with a wavelength of 7 ~ 13㎛ close to 3 ~ 50㎛, and it is preferable to use the polypropylene unstretched filament as the screening for the elastic expression of composite twisted yarn.

If the particle size of the basalt microparticles contained in the basalt-containing polyethylene terephthalate filament is less than 500 nm, the aggregation becomes severe, resulting in a blockage problem, and the exothermic effect is deteriorated. Can be.

The overfeed rate between the first feed roller and the third feed roller of the effector is supplied in a tension of 1.00 ~ 1.30, 3 ~ 4gf, the overfeed rate between the second feed roller and the fourth feed roller of the screening is 1.00 When it is preferable that it is -1.02, when the overfeed rate between the 1st feed roller and the 3rd feed roller of the said effector is less than 1.00, crimp expression is inadequate and a tension nonuniformity arises when it exceeds 1.10.

If the tension is less than 3 gf, it is difficult to control the tension. If the tension is excessively greater than 4 gf, the basalt particles contained in the effected basalt polyethylene terephthalate filament are separated or dropped from the filament by a sagaide or a roller. Remaining in the guide in the form has a serious problem of degradation of workability and generation of trimming can be prevented from separating or falling off the filament by adjusting the tension range as described above.

When the overfeed rate between the second feed roller and the fourth feed roller of the screening is less than 1.00, the elasticity is deteriorated, and when it exceeds 1.05, the interlace becomes uneven due to the tension unevenness.

While the heat treatment temperature of general polyethylene terephthalate filament is 180 ~ 210 ℃, the polyethylene terephthalate polymer containing basalt fine particles is heat treated at heat treatment temperature of 150 ~ 160 ℃. Since thermal efficiency is increased, it is preferable to heat-treat in the above temperature range. If the temperature is lower than 150 ℃ unstable crystallization due to the unfixed crimp and high elongation workability is lowered, excessively high heat treatment temperature exceeding 160 ℃ causes the basalt desorption.

In the present invention, the heat-treated effect yarns and screening is combusted by the combustor 8, and is impregnated with a TPM 500 to 800 to impart a crimp. In the present invention, the combustor may be a pin or disc type combustor, and more preferably, a nip twister may be used.

After burning by the combustor, the effect yarn and the screening are interlaced at 1.0 to 1.2 bar of air pressure, and then wound at a speed of 500 to 550 m / min to produce basalt-containing polyester composite twisted yarn having excellent heat generation.

The basalt-containing polyester composite twisted yarn manufactured by the above production method may impart high elasticity while expressing exothermicity and heat retention.

Therefore, according to the basalt-containing polyester composite twisted yarn of the present invention, it has excellent functionality and excellence in durability and warmth and can impart high elasticity, and can be applied to fabrics or knitted fabrics used for winter clothing. .

1 is a schematic diagram showing a manufacturing process of basalt-containing polyester composite twisted yarn of the present invention,
2 is a cross-sectional photograph of a basalt-containing polyester filament used as an effect yarn of the composite twisted yarn of the present invention.

In the following examples, non-limiting examples of producing the basalt-containing polyester composite twisted yarn of the present invention.

Example 1

As an effect yarn, a 2% by weight basalt-containing polyethylene terephthalate filament (75d / 72fila, gold-fiber yarn) containing 2% by weight of basalt fine particles having an average particle size of 1500 nm was passed through the first feed roller and supplied to the third feed roller at an overfeed rate of 1.00. After passing through the second feed roller, the polypropylene unstretched filament (75d / 48fila) was passed through the second feed roller at a feed rate of 1.02 to the fourth feed roller, and the effect yarn and the screen were heat-treated at a heat treatment temperature of 150 ° C. in the heater. Thereafter, after twisting with a TPM 500 by a combustion apparatus, the effect yarn and the screening were interlaced at 1.2 bar of air pressure, and then wound through a fifth feed roller at 450 m / min. The physical properties of the prepared composite twisted yarns were measured and shown in Table 1 below.

division Example 1 Remarks burglar 3.2 g / d Shinto 20%

Weaving the fabric with the composite twisted yarn prepared in Example 1 and shown in Table 2 by measuring the optical heat generation performance in the visible light region as follows.

  ※ Measurement method ① Prepare the sample at 15 ± 15 cm (sample here means the test piece and the control piece) ② Photothermal evaluation equipment is (20 ± 2) ℃, (65 ㅁ 2)%. Located in the chamber set to RH ③ Attach the contact thermometer below the sample surface with the sample surface up on the sample holder. ④ Operate the artificial lamp vertically 30 cm above the sample and measure the sample temperature for 60 minutes. .

division Example 1 Before lamp operation 20 ℃ 60 minutes after lamp operation 23.4 ℃

As shown in Table 2, Example 1 exhibited a temperature rise of 3 ° C., and it was confirmed that there was a photothermal effect.

1: Effector 2: Judging
3: first feed roller 4: third feed roller
5: second feed roller 6: fourth feed roller
7: heater 8: combustion apparatus
9: interlocking mechanism 10: 5th feed roller
11: winding roller

Claims (3)

The effector passes polyethylene terephthalate filament containing 1 to 3% by weight of basalt microparticles with a particle size of 500 to 5,000 nm through the first feed roller and supplied it to the third feed roller at an overfeed rate of 1.00 to 1.30 and 3 to 4 gf. and,
By passing the polypropylene unstretched filament through the second feed roller, and supplied to the fourth feed roller at an overfeed rate of 1.00 ~ 1.02,
After heat-treating the effect yarn and the screening at a heat treatment temperature of 150 to 160 ℃ in a heater, and then by the combustion device TPM 500 to 800,
Method for producing a basalt-containing polyester composite twisted yarn having excellent heat generation characteristics, characterized in that the effect yarn and the screening is interlaced at 1.0 to 1.2 bar air pressure and then wound at a yarn speed of 500 to 550 m / min. delete delete

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