KR101788631B1 - Latent crimping typed two component conjugated yarn with high sensibility and Manufacturing method thereof - Google Patents

Abstract

The present invention relates to a potting pot with high sensitivity and a method for producing the potting pot, and is an invention capable of providing a latent pottery having high sensibility with adequate fuzz count and pastel color tone while having excellent mechanical properties.

Description

TECHNICAL FIELD [0001] The present invention relates to a high sensitive potential housing and a manufacturing method thereof,

The present invention relates to a pottery of high sensitivity having excellent elasticity, soft touch feeling, pastel tone color and the like, and a method of producing the pottery with high productivity.

Side-by-side type polyester conjugated fibers have been developed variously until the mid 1980's because they have been utilized as functional fibers through development of cross-sectional technique and alkali reduction technology in the 1970s.

As a type of polyester conjugate fiber, the potential fiber is a fiber composed of two kinds of polyester having different shrinkage ratios in a side-by-side type or a core-shell type, It is a composite bimetallic composite yarn. It has a comfortable stretch function when the crimp is developed. It also has unique surface properties and repulsion. It has a high elasticity (Hari), rigidity (Koshi) And has a characteristic that it can remarkably improve touch.

Potential Concerns are applied to products such as casual suits, dresses, blouses, and knits because of their elasticity and resilience. They are not as strong in elasticity and resilience as span, Woven fabrics and knitted fabrics using them are in fashion trends, and demand is expanding globally.

However, there is a problem that the touch feeling and the color of the potential housing are lowered if the mechanical properties such as the elasticity and the resilience of the potential housing are improved. As a result, in the case of the existing potential housing, There is a problem.

Korean Patent Publication No. 10-2011-0124440 (published on November 17, 2011)

It is an object of the present invention to provide a latent housing which has excellent mechanical properties and excellent touch sensation and color, and which can be manufactured with high commerciality I want to provide a way to do that.

In order to solve the above-mentioned problems, the high-sensitivity potential housing of the present invention includes a horny filament (or multifilament) in which a monofilament in which first and second components are combined side-by-side is mixed, Component and the second component comprise polyethylene terephthalate.

In a preferred embodiment of the present invention, the first component may be polyethylene terephthalate having an intrinsic viscosity of 0.63 to 0.70, and the second component may be polyethylene terephthalate having an intrinsic viscosity of 0.47 to 0.55.

In one preferred embodiment of the present invention, the intrinsic viscosity difference between the first component and the second component may be 0.10 to 0.20 dl / g.

In one preferred embodiment of the present invention, the first component of the highly sensitive latent housing of the present invention may contain 0.3 to 3.0% by weight of TiO ₂ fine particles in the total weight of the first component.

As a preferred embodiment of the present invention, the second component of the potentially sensitive pottery of the present invention may contain 0.3 to 3.0% by weight of TiO ₂ fine particles in the total weight of the second component.

In a preferred embodiment of the present invention, the cross section of the monofilament may be of a peanut shape having a variance of 1.4 to 1.5.

In a preferred embodiment of the present invention, the cross section of the monofilament may have a flatness ratio of 1: 1.20 to 1.40.

In a preferred embodiment of the present invention, the cross-section of the monofilament may have an aspect ratio of 1: 0.67 to 0.85.

In a preferred embodiment of the present invention, the monofilament may have a fineness of 1.1 to 4.5 denier.

In one preferred embodiment of the present invention, the blended yarn constituting the highly sensitive latent bulb of the present invention may be 60 to 200 denier and 12 to 65 filaments.

As a preferred embodiment of the present invention, the highly sensitive latent cage of the present invention may have an average number of crimps of 5.5 to 9.5 / cm and a number of napkins of 0.05 / 106 m or less.

As a preferred embodiment of the present invention, the highly sensitive latent housing of the present invention may have a microcurve of 2.0 cycles / cm or less.

As a preferred embodiment of the present invention, the highly sensitive latent housing of the present invention may have a heat shrinkage stress of 0.4 g / de or less.

In one preferred embodiment of the present invention, the highly sensitive latent housing of the present invention may have a tenacity of 2.5 to 4.5 g / de.

As a preferred embodiment of the present invention, the high sensitivity potential housing of the present invention may have a longitude of 15.0 to 30.0%.

As a preferred embodiment of the present invention, the highly sensitive latent housing of the present invention may have an evenness of 1.0 to 2.0% and a shrinkage of 6.0 to 15.0%.

As a preferred embodiment of the present invention, the high sensitivity potential housing of the present invention may have an oil pickup property of 0.6 to 1.15%.

Another object of the present invention is to provide a method for producing the above-described various types of highly sensitive latent populations, which comprises a polyethylene terephthalate chip (first component chip) having an intrinsic viscosity of 0.63 to 0.70 and a polyethylene terephthalate having an intrinsic viscosity of 0.47 to 0.55 A first step of preparing a chip (a second component chip), respectively; A second step of preparing side-by-side type monofilaments by injecting and spinning the first component resin and the second component resin, which have melted each of the first component chip and the second component chip, into a composite spinneret and then cooling it; Lubricating the monofilament and stretching the monofilament; A fourth step of thermally fixing the drawn monofilaments; And a fifth step of preparing a hornblende yarn including a plurality of heat-fixed monofilaments mixed with multifilaments, thereby producing a highly sensitive latent barn.

In one preferred embodiment of the present invention, the first component chip of the second step may include 0.3 to 3.0% by weight of the TiO ₂ fine particles in the total weight of the first component chip.

In a preferred embodiment of the present invention, the second component chip of the second step may include 0.3 to 3.0% by weight of the TiO ₂ fine particles in the total weight of the second component chip.

In one preferred embodiment of the present invention, the two-step melting may be performed at 280 ° C to 300 ° C for the first component chip and at 260 ° C to 290 ° C for the second component chip.

As a preferred embodiment of the present invention, the discharge pressure of the first component resin is 100 to 170 kg / cm ² and the discharge pressure of the second component resin is 60 to 160 kg / cm ² . ≪ / RTI >

As a preferred embodiment of the present invention, the composite spinning in two stages can be carried out at a spinning speed of 1,000 to 2,700 m / min and a spinning temperature of 270 to 290 ° C.

In one preferred embodiment of the present invention, the difference in melt viscosity between the first component resin and the second component resin melted before the composite spinning in two steps may be 1,000 poise or more.

 In one preferred embodiment of the present invention, the difference in melt viscosity between the first component resin and the second component resin during the two-step composite spinning may be 100-500 poise.

As a preferred embodiment of the present invention, the composite spinneret may include a spinneret having an odd number of holes of 12 to 70 holes and a composite spin angle of 10 ° to 28 ° per hole area of 114.5Φ.

As a preferred embodiment of the present invention, the two stages of cooling can be carried out at a cooling temperature of 10 to 28 DEG C and a cooling rate of 0.20 to 0.60 m / sec.

As a preferred embodiment of the present invention, the three-step stretching is firstly stretched at a rate of 1,000 to 2,000 mpm at 80 ° C to 100 ° C, then continuously stretched at 120 ° C to 140 ° C at a rate of 3,000 to 5,500 mpm Can be performed.

In one preferred embodiment of the present invention, the three-step stretching can be performed at a stretching ratio of 2.2 to 3.6 times.

In one preferred embodiment of the present invention, the hot fix may be performed at 120 ° C to 150 ° C.

Another object of the present invention is to provide a fabric and / or a knitted fabric manufactured using the above-described high-sensitivity pottery.

Another object of the present invention is to provide clothes, curtains, sports accessories and the like manufactured using the fabric and / or knitted fabric.

The potting compartment of the present invention has excellent heat shrinkage stress, strength, elongation, uniformity and shrinkage ratio and is excellent in mechanical properties and also has a high number of crimps, a small crimp cycle and a suitable number of fuzz, Bar, and sensitivity. After manufacturing the knitted fabric and / or the fabric of the lathe according to the present invention, the knitted fabric and the knitted fabric can be used as a casual wear such as a shirt, a jacket and a trousers, a formal wear such as a female suit, dress, underwear such as lingerie, Accessories, and the like, a high-function product can be provided.

FIG. 1 is a SEM photograph of a latent house produced in Example 1. FIG.
Fig. 2 is a photograph of the distribution of the monofilaments constituting the latent housing of Example 1. Fig.

Hereinafter, the present invention will be described in detail with reference to a method for producing a latent house of the present invention.

The present invention provides a method for preparing a first component chip and a second component chip, which are two types of PET (Polyethylene terephthalate) chips having different intrinsic viscosities, respectively; A second step of preparing side-by-side type monofilaments by injecting and spinning the first component resin and the second component resin, which have melted each of the first component chip and the second component chip, into a composite spinneret and then cooling it; Lubricating the monofilament and stretching the monofilament; A fourth step of thermally fixing the drawn monofilaments; And 5) a step of preparing a hornblende yarn comprising multifilaments mixed with a plurality of heat-fixed monofilaments.

The difference in intrinsic viscosity between the first component chip and the second component chip in the first step is preferably 0.10 to 0.20 dl / g, more preferably 0.135 to 0.180, and more preferably 0.145 to 0.165. In this case, There may be a problem that the crimp ratio is insufficient, and when it is more than 0.20, there may be a problem that the radiations are poor and yarn breakage occurs or the crimp discharge is poor.

The first component chip is a PET chip having a high intrinsic viscosity, and has an intrinsic viscosity of 0.63 to 0.70, preferably an intrinsic viscosity of 0.63 to 0.68, more preferably 0.64 to 0.67. If the intrinsic viscosity of the first component chip having a high intrinsic viscosity is less than 0.63, there may be a problem that the intrinsic viscosity of the first component chip is too small due to too small intrinsic viscosity difference with the second component chip, If it is more than 0.70, the difference in intrinsic viscosity between the first component chip and the second component chip becomes too large, and there may be a problem of ejection failure and radiative failure (truncation) to the spinneret.

The second component chip is a PET chip having a low intrinsic viscosity, and has an intrinsic viscosity of 0.47 to 0.55, preferably an intrinsic viscosity of 0.48 to 0.53, more preferably 0.485 to 0.520. At this time, if the intrinsic viscosity of the second component chip having a high intrinsic viscosity is less than 0.47, there is a problem that the intrinsic viscosity difference with the first component chip is too large, If the viscosity exceeds 0.55, the difference in intrinsic viscosity between the second component chip and the second component chip becomes too small, so that there is a problem that the effect of improving the heat shrinkage stress, crimp ratio and the like of the pottery housing can not be seen.

In addition, the first component chip and the second component chip include TiO ₂ microparticles for the purpose of developing a soft touch during processing.

The first component chip contains 0.3 to 3.0% by weight, preferably 1.2 to 2.2% by weight, more preferably 1.6 to 2.1% by weight, still more preferably 1.75 to 2.00% by weight of TiO ₂ fine particles If the content of the TiO ₂ fine particles in the first component chip is less than 0.3% by weight, there may be a problem that the elasticity of the pottery manufactured by using the prepared TiO ₂ fine particles is inferior. If the content of the TiO ₂ fine particles in the first component chip is If it exceeds 3.0% by weight, there may be a problem that the composite radioactivity drops.

The second component chip contains 0.3 to 3.0 wt%, preferably 1.0 to 2.0 wt%, more preferably 1.4 to 2.0 wt% of TiO ₂ fine particles, more preferably 1.70 to 1.95 wt% %. If the content of TiO ₂ fine particles in the second component chip is less than 0.3 wt%, it is possible to manufacture a pottery pot with a low sensibility due to insufficient pastel tone coloring of the pottery pottery manufactured using the same. If the content of the TiO ₂ fine particles in the second component chip exceeds 3.0% by weight, there may be a problem that the composite radioactivity drops.

In addition, the first component chip and / or the TiO ₂ fine particles contained in the two-component chip is good that the average particle diameter 0.01㎛ ~ 0.3㎛, preferably the average particle diameter 0.05㎛ ~ 0.2㎛, wherein, TiO ₂ fine particles are If the average particle size is less than 0.01 탆, there may be a problem of pack pressure rise due to the occurrence of coagulation and spinning. If the average particle size exceeds 0.3 탆, the amount of the particle filter filtered by the particle filter increases, There is a cause and a dispersing property is deteriorated, and there may be a problem that a dyeing runaway occurs on the processing ground.

The second step melts the first component chip and the second component chip for compound radiation, wherein the first component chip is heated at a temperature of 280 ° C to 300 ° C, preferably 290 ° C to 300 ° C, It is preferable to melt at a temperature of 292 ° C to 298 ° C. The second component chip is preferably melted by applying a temperature of 260 ° C to 290 ° C, preferably a temperature of 275 ° C to 290 ° C, more preferably a temperature of 280 ° C to 290 ° C. At this time, if the melting temperature is out of the above range, the first component chip and / or the second component chip may not be melted properly or a weight deviation (denier) due to the ejection pressure hunting may occur.

The difference in melting point of the molten first component resin and the second component resin may be 1,000 poise or more, preferably 1,000 to 1,400 poise. The number average molecular weight of the first component resin may be 18,000 to 25,000, preferably 19,500 to 23,500, and the number average molecular weight of the second component resin may be 10,000 to 15,000, preferably 10,500 to 13,000.

Next, the composite spinning is performed through the combined spinning and dipping of the melted first component resin and the second component resin, wherein the composite spinneret can be a conventional composite spinneret used in the art, For example, the odd number per hole area 114.5? Is 12 to 70 holes, preferably 30 to 60 holes, and more preferably 30 to 55 holes per odd area 114.5 ?. A composite spinneret having a composite spin angle of 10 ° to 25 °, preferably 18 ° to 25 °, more preferably a spinneret having a composite spin angle of 18 ° to 20 ° can be used.

At this time, if the composite spinneret has an odd number of holes of less than 12 holes per 114.5? Of the detachment area, the productivity deteriorates. If the number of odd holes exceeds 70 holes, there is a problem of deterioration of radioactivity. If the composite radial angle is less than 10 °, there may be a problem of poor radioactivity due to poor discharge caused by the occurrence of the projectile on the detonator. If the radial angle is over 25 °, there may be a problem that the manufacturing cost of the detonator increases.

In addition, the shape of the discharge orifice of the composite spinneret may be oblique, and the composite spinneret may have a circular flow path shape.

In the composite spinning, the discharge pressure of the first component resin is from 100 to 170 kg / cm ² , preferably from 140 to 150 kg / cm ² , more preferably from 142 to 148 kg / cm ² If the discharge pressure of the first component resin is less than 100 kg / cm ^2, the first component resin having a relatively higher viscosity than the second component resin is discharged too little to cause a weight deviation (denier) If the discharge pressure of the first component resin exceeds 170 kg / cm ² , there may be a problem that a leakage of the fastening portion of the molten bolt or the like occurs.

The discharge pressure of the second component resin is set to be 60 to 160 kg / cm ² , preferably 80 to 150 kg / cm ² , preferably 130 to 145 kg / cm ² At this time, if the discharge pressure of the second component resin is less than 60 kg / cm ² , there may be a problem that a weight deviation (denier) occurs, and when the discharge pressure of the second component resin is 160 kg / cm ² The second component resin having a relatively lower viscosity than the first component resin may be excessively discharged to cause a leak in the melting bolt fastening part or the like

In addition, it is preferable in terms of radioactivity that the two-stage composite spinning is carried out at a spinning speed of 1,400 to 1,650 m / min, preferably 1,450 to 1,600 m / min and a spinning temperature of 270 to 280 ° C. In this case, if the spinning speed is less than 1,400 m / min, there is a problem that the spinning workability is good but the baffle due to the excessive stretching occurs. If the spinning speed exceeds 1,650 m / min, the B / O number increases too much and the filament is refused . Here, the B / O means that only some of the entire strands are broken during the spinning process.

In the second step, the combined radiated radiation is cooled. The cooling may be performed using a general cooling method used in the art. The cooling is carried out at a cooling temperature of 10 ° C to 28 ° C, preferably 10 ° C to 22 ° C, If the cooling temperature is less than 10 ° C, there may be a problem that a defective solidification defect occurs. If the cooling temperature is more than 28 ° C There may be a problem such as a decrease in strength due to poor solidification. If the cooling rate is less than 0.20 m / sec, the productivity is deteriorated. If the cooling rate is less than 0.60 m / sec, the radioactive failure (B / O generation) may occur.

The difference in melt viscosity between the first component resin and the second component resin in the composite spinning may be 100-500 poise, preferably 150-400 poise, more preferably 150-250 poise.

Step 3 is a step of lubricating the cooled monofilament and then stretching the lubricated monofilament. The lubricating treatment is performed for reducing friction such as post-finishing, and may be performed by a general method used in the art, - Oil rolls and oil-guides can be used.

The three-step stretching can be carried out by a general method used in the art. For example, first stretching is performed at a rate of 1,300 to 2,000 mpm at 80 ° C to 100 ° C, Lt; 0 > C to 140 < 0 > C at a rate of 3,000 to 5,500 mpm.

The three-step stretching can be performed at a stretching ratio of 2.2 to 3.6 times.

Step 4 is a step of thermally fixing the drawn monofilaments, wherein the thermotropic filaments are subjected to a heat treatment at 120 ° C to 150 ° C, more preferably at 120 ° C to 145 ° C, more preferably at 125 ° C to 140 ° C can do.

Next, a plurality of heat-fixed monofilaments are mixed to produce a pottery pottery of the present invention including a composite iron filament composed of multifilaments. In manufacturing the pottery pottery of the present invention, no additional fusing is performed.

The cross section of the monofilament may be a side-by-side type and a peanut type as shown in FIG. The monofilament has a degree of deformation of 1.4 to 1.5. The monofilament may have a flatness ratio of 1: 1.20 to 1.40, an outer circumference ratio of 1: 0.67 to 0.85, a flatness ratio of 1: 1.25 to 1.36, and an outer circumference ratio of 1: 0.75 to 0.83 .

The monofilament may have a fineness of 1.1 to 4.5 denier, preferably 1.50 to 2.60 denier, and more preferably 1.55 to 1.80 denier.

The latent housing of the present invention thus fabricated is a potting housing without twisting, in which the monofilaments in which the first and second components are combined side-by-side are hybridized. In the present invention, the difference in intrinsic viscosity between the first component and the second component is 0.10 to 0.20 dl / g, the first component contains 0.3 to 3.0% by weight of the TiO ₂ fine particles, Contains 0.3 to 3.0% by weight of TiO ₂ fine particles. The characteristics of the first component, the second component, and the monofilament are the same as those described above.

The latent capacity of the present invention is 60 to 200 denier and 12 to 65 filaments, preferably 70 to 100 denier and 40 to 56 filaments, 84 denier and 46-50 filaments.

The latent capacity of the present invention may have an average number of crimps of 5.5 to 9.5 / cm, preferably 5.7 to 8.5 / cm.

The latent capacity of the present invention may have a nap count of 0.05 pcs / 106 m or less, preferably 0.04 to 0.0001 pcs / 106 m, and more preferably 0.02 to 0.0008 pcs / 106 m.

 In addition, the potential bar of the present invention may have a minute crimp of 2.0 cycles / cm or less, preferably 1.5 cycles / cm or less, and more preferably 0.4 to 1.2 cycles / cm. If the microcurving exceeds 2.0 cycles / cm, the post-twister and the poor workability of the weaving operation may occur if the different kinds of polymers having different viscosity and shrinkage characteristics in the process of manufacturing the latent housing are subjected to the orientation crystallization process. .

The latent heat storage of the present invention may have a heat shrinkage stress of 0.4 g / de or less, preferably 0.35 g / de or less, more preferably 0.27 to 0.32 g / de.

In addition, the latent stock of the present invention may have a tenacity of 2.5 to 4.5 g / de, preferably 3.10 to 3.80 g / de, more preferably 3.25 to 3.65 g / have.

The latitude of the latitude of the present invention may be 15.0 to 30.0%, preferably 18.5% to 22.0%, and more preferably 19.0% to 22.0%.

As a preferred embodiment of the present invention, the highly sensitive latent housing of the present invention may have a shrinkage ratio of 6.0% to 15.0%, preferably 6.0% to 8.5%.

The latent housing of the present invention may have an evenness of 1.0 to 2.0%, preferably 1.0 to 1.85%, more preferably 1.1 to 1.5% .

In addition, the latent housing of the present invention may have an oil pick-up property of 0.6 to 1.15%, preferably 1.0 to 1.15%, and more preferably 1.05 to 1.12%.

As described above, the potting compartment of the present invention has excellent heat shrinkage stress, strength, elongation, uniformity, and shrinkage ratio, and is excellent in mechanical properties and has a high number of crimps, a small crimp cycle and a proper number of fuzz, Having color, it is excellent in sensitivity. After manufacturing the knitted and / or woven fabrics of the present invention, the knitted and / or woven fabrics of the present invention can be used as casual wear such as shirts, jackets, pants, formal wears such as women's suits and dresses, underwear such as lingerie and undergarments, , Sports accessories, etc. can be manufactured with high functionality and high sensitivity.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples should not be construed as limiting the scope of the present invention, and should be construed to facilitate understanding of the present invention.

[ Example ]

Example  1: Manufacture of pottery barn

(Manufactured by Toray Chemical Co., Ltd., trade name: FD) having an intrinsic viscosity of 0.65 dl / g and a PET chip (trade name: low FD) having an intrinsic viscosity of 0.5 dl / g as a second component Respectively. At this time, each of the first component and the second component contains 1.8 wt% of TiO ₂ fine particles having an average particle diameter of 0.20 μm.

Next, each of the first component chip and the second component chip is dried in a drier and then put in a silo hopper. Then, the first component chip is melted at 295 DEG C to make it a first component resin, and the second component is 285 Lt; 0 > C to make the second component resinous. At this time, the viscosity difference between the first component resin and the second component resin was 1,000 poise or more.

Next, a spinning nozzle having a composite spinning angle of 20 ° was provided, and a composite spinneret having an odd number of holes of 50 holes per 114.5Φ was used to obtain a first component resin (number average molecular weight = 21,000, viscosity 550 poise) The component resin (number average molecular weight = 11,161, viscosity 350 poise) was discharged and compounded.

At this time, the shape of the discharge hole of the composite spinneret was an oblique shape, and the composite spinneret had a circular flow path shape. The discharge pressure for the first component resin was 145 Kg / cm 2, the discharge pressure for the second component resin was 140 Kg / cm 2, the composite spinning temperature was 275 ° C, the bottom heater temperature was 290 ° C, and the spinning speed was 1,500 m / min. The compounding ratio of the first component resin and the second component resin was 1: 1 by weight.

Next, the discharged filament was cooled at a temperature of 15 캜 to 16 캜 at a rate of 0.47 m / sec and a length of 1,000 mm.

Next, the cooled filament is subjected to a lubrication treatment in an oil roll, followed by first elongation at a temperature of 90 DEG C at a temperature of 1,500 mpm, and second elongation at a temperature of 130 DEG C at a speed of 4,200 mpm .

 Next, the stretched filaments were thermally fixed at 130 캜. At this time, the fineness of the heat-fixed monofilament was 1.67 denier.

Next, a plurality of heat-fixed filaments were mixed to produce a highly sensitive pottery having a horns-like shape. The fabricated pottery was 80 denier (80 de / 48 F) for 48 filaments. FIG. 1 shows a SEM photograph of the pottery barn produced.

Referring to FIG. 1, it can be seen that the cross section of the monofilaments constituting the pottery housing is a peanut-shaped side-by-side shape.

Example  2

A pot spinneret was manufactured in the same manner as in Example 1 except that a spinneret having a composite spinning angle of 25 ° was used instead of the composite spinneret and a composite spinneret having an odd number of holes per 114.5Φ of 32 holes was used A pottery barn was manufactured. The number of filaments in the pottery was 48 and the fineness was 80de.

Comparative Example  1 ~ Comparative Example  4

Potential barnacles were prepared by the same method as in Example 1, and composite spinning was performed using composite spinnerets of the specifications shown in Table 1 below, and the radioactivity was evaluated. At this time, the radioactivity is measured based on the full tube rate.

Good: Percentage of fullness 90% or more, Normal: Percentage 70-90%, Poor: Percentage of fullness 70% or less

division Compound emission angle Compound spinning detention
H (odd number) / detention area (114.5Φ) Radiation workability Example  One 20 ° 50 H good Example  2 25 ° 32 H good Comparative Example  One 5 ° 90 H Poor Comparative Example  2 10 ° 72 H Poor Comparative Example  3 15 ° 68 H usually Comparative Example  4 30 ° 18 H good

In the case of Examples 1 and 2, in Comparative Examples 1 to 4 in which the composite radiation angle was less than 18, although the composite radiation property was excellent, there was a problem that the composite radiation angle was lower than that in Examples, In the case of 1 to 2, there was a problem in that the spinning workability was poor due to the poor discharge of the detents. Further, in the case of Comparative Example 4, there was a problem of an increase in the unit cost of custody production due to an odd number restriction.

Example  3

The filament was cooled and liquefied in the same manner as in Example 1 except that the drawn filament was stretched at different stretching ratios and the filament was thermally fixed to produce a monofilament of 2.1 de.

Next, a plurality of heat-fixed filaments were mixed to produce a highly sensitive potential housing in the form of a honeycomb structure. The number of filaments in the pot housing was 48 and the fineness was 100degree.

Comparative Example  5 ~ Comparative Example  7

The pots were prepared in the same manner as in Example 1, except that the monofilaments as shown in Table 2 were prepared by varying the fineness, and then the horseshoe-shaped pots with high sensitivity were prepared using the monofilaments.

division Monofilament fineness Potential convention
(Fineness / Number of filaments ) Example  One At 1.67 80 de / 48 F Example  3 At 2.1 100 de / 48 F Comparative Example  5 At 4.5 216 de / 48 F Comparative Example  6 At 3.5 168 de / 48 F Comparative Example  7 At 2.8 134.4deg / 48 F

Experimental Example  1: elasticity, soft Touch  And radioactive measurement

The elasticity, soft touch feeling and radial phase of the pots of the pots prepared in Examples 1, 3 and Comparative Examples 5 to 7 were measured.

At this time, elasticity and soft touch feeling were performed by expert evaluation.

division Resilience soft Touch Example  One 8 10 Example  3 7 10 Comparative Example  5 10 3 Comparative Example  6 10 4 Comparative Example  7 9 5

As can be seen from the results of Table 3, when the number of filaments of the pottery housing is the same, the elasticity of the monofilament increases as the fineness of the monofilament increases, but the soft touch feeling is lowered.

Comparative Example  8 ~ Comparative Example  11

The potential barriers were manufactured by the same method as in Example 1 except that the spinning rate during the composite spinning was varied as shown in Table 4, and the B / O generated water and spinning workability per hour were measured and shown in Table 4 below. In this case, the spinning workability is measured based on the winding fullness ratio.

Good: Percentage of fullness 90% or more, Normal: Percentage 70-90%, Poor: 70% or less

division Spinning speed
(m / min) per hour BO number Radiation workability Example  One 1,500 One Great Comparative Example  8 1,800 3 Poor Comparative Example  9 2,400 40 Poor Comparative Example  10 1,300 0 Great Comparative Example  11 1,000 0 Great

Example  5 ~ Example  6 and Comparative Example  12 ~ Comparative Example  17

The potential bar stock (80de / 48F) was produced in the same manner as in Example 1 except that the content of TiO ₂ fine particles in the first component PET chip and the second component PET chip was measured in the same manner as in Examples 5 to 6 And Comparative Examples 12 to 17, respectively.

division In the first component
TiO ₂  content( weight% ) In the second component
TiO ₂  content( weight% ) Example  One 1.8 1.8 Example  5 1.95 1.7 Example  6 1.75 1.95 Comparative Example  12 1.8 0 Comparative Example  13 2.5 0 Comparative Example  14 0 1.8 Comparative Example  15 0 2.5 Comparative Example  16 1.4 1.4 Comparative Example  17 2.5 2.5

Then elasticity, soft touch, pastel tone and radioactivity were measured as shown in Table 6, and elasticity, soft touch, and radioactivity were measured in the same manner as in the previous method. Respectively.

division Resilience soft Touch About Pastel Radioactive Example  One 9 10 8 Great Example  5 10 9 9 Great Example  6 10 10 9 Great Comparative Example  12 5 7 3 Great Comparative Example  13 6 8 4 Great Comparative Example  14 5 7 7 Great Comparative Example  15 6 8 9 Poor Comparative Example  16 5 9 4 Great Comparative Example  17 10 10 10 Poor

In the results of Table 6, when the content of the TiO ₂ fine particles in the first component PET chip and / or the second component PET chip exceeds 2.2% by weight (Comparative Example 15 and Comparative Example 18) . Further, when the TiO ₂ fine particles are not present in the first component PET chip or the second component PET chip, there is a problem that the emissivity is good, but the elasticity, the soft touch feeling and the pastel tone are poor. When the content of the TiO ₂ fine particles in the first component PET chip and / or the second component PET chip is less than 1.5% by weight, the elasticity and the pastel tone are reduced (Comparative Example 16).

However, in Examples 1 and 5 to 6, overall excellent elasticity, soft touch feeling, and pastel tone were high, and the radioactivity was also excellent.

Experimental Example  1: Measurement of physical properties of pottery housing

The number of crimps, the number of fingers, the number of fuzz, the number of crimps, the heat shrinkage stress, the strength, the elongation, the uniformity, the shrinkage and the oil pick-up property of the latent cage produced in Examples 1, 5 and 6 were measured. Table 7 shows the results.

1) Method of measuring heterogeneity

Figure 2 shows the SEM photographs of the latitudinal and longitudinal axes measured by dividing the major axis length and the minor axis length.

2) Number of manifolds  How to measure

The filament is treated in a non-aqueous solution for 10 minutes and then immersed in cold water for 1 minute. Then, take it out, dry it naturally, and play it on a glass plate. Then, ten yarns were obtained, and the average value was calculated and measured.

3) Lint , Microcylinder  How to measure

The number of fuzz was measured by counting the number of single fiber fineness cut off per unit length (106 m). And, the microcylinders were measured by counting the number of crimps per 1 cm of potential barn under the unarmed force.

4 ) How to measure tenacity and elongation

Strength and elongation were measured using a STATIMAT M lightness meter.

5 ) How to measure evenness , shrinkage and oil -pick up

The uniformity was measured by a USTER TESTER, which is a numerical value of the cross-sectional area and weight variation per unit length.

6) Oil pickup properties (Oil pick-up) Measurement

The oil pick-up performance is measured by weighing 2 g of 3 samples, then weighing up the weighing scale in the first place. Next, weigh the trays to be loaded on each sample in order. Next, weigh the tray, place the sample (2g), inject alcohol and set it for 2 minutes. Next, open the lid after alarm, and if alcohol is released, apply air, and then specify 10 minutes. Next, after 10 minutes, loosen the thread, inject alcohol again, and set it for 1 minute. Next, open the lid after the alarm. If the alcohol is released, add air and repeat the emulsion twice (loosen the thread in the middle). Next, set the alarm for 15 minutes, and if the remaining alcohol in the tray evaporates, lower the tray. Next, lower the tray, set it for 2 minutes, cool it, and measure the weight of the tray with the emulsion. Next, the oil pickup performance (%) is calculated based on the following equation (1).

[Equation 1]

Oil pick-up = (Tray after weight - Tray first weight) / Sample weight * 100

7) Intermingle (intermingle, ea / m)

The intermingle samples were cut into 1 m lengths, and the samples were held on both sides and placed in an I / L tank (WATER BATH), and the number of knots was measured.

division Example  One Example  5 Example  6 Heterogeneity 1.4 to 1.5 1.4 to 1.5 1.4 to 1.5 Number of manifolds
(Acid / cm) 6 8 8 Lint
(Pieces / 106m) 0.001 0.01 0.04 Microcylinder
(Cycle / cm) 0.6 0.8 1.2 Heat shrinkage stress
(g / de) 0..2943 0.3040 0.2872 Strong (g / de) 3.42 3.60 3.62 Shindo % ) 20.82 22.0 18.0 Uniformity % ) 1.31 1.50 1.83 Contraction ratio ( % ) 7.76 8.0 7.1 oil Pickup ( % ) 1.10 1.10 1.10 Intermingle
(intermingle, ea / m) 2 One One

Manufacturing example  1 ~ Manufacturing example  4

The potential barriers of Example 1 were twisted in 2for1 twisted yarn to measure twist yarn workability, lead free circular workability, and unleaded weft yarn workability, and the results are shown in Table 8 below.

In addition, the latent crimped yarns were respectively produced with 1.8 times / cm, 2.8 cycles / cm and 4.3 cycles / cm of minute crimp, and then the same was used to measure the twinning workability, And the results are shown in Table 8 below.

In this case, the twist yarn workability, the lead-free circular workability, and the lead-free weft yarn workability are inversely measured on the basis of the twisted yarn and the weft loom ratio (running time / 24 hr * 100%).

division Microcylinder
(Cycle / cm) Speaker workability
(%) Lead-free circular workability
(%) Lead-free weaving weft workability
(%) Production Example 1 0.6 100 100 100 Production Example 2 1.8 95 90 90 Production Example 3 2.8 90 75 80 Production Example 4 4.3 80 70 70

Through the above-mentioned Examples and Experimental Examples, it was confirmed that the pottery housing of the present invention has good mechanical properties, and a highly sensitive latent crimp with good fuzz count and pastel color. After manufacturing the knitted fabric and / or the fabric of the lathe according to the present invention, the knitted fabric and the knitted fabric can be used as a casual wear such as a shirt, a jacket and a trousers, a formal wear such as a woman suit, dress, underwear such as lingerie, Accessories, and the like, it is expected that a high-function product can be provided.

Claims (15)

Wherein the monofilament in which the first component and the second component are combined side-by-side comprises a hybridized horns yarn,
The first component is polyethylene terephthalate having an intrinsic viscosity of 0.63 to 0.70 dl / g, the second component is polyethylene terephthalate having an intrinsic viscosity of 0.47 to 0.55 dl / g,
The difference in intrinsic viscosity between the first component and the second component is 0.10 to 0.20 dl / g,
The first component comprises 1.2 to 2.2% by weight of the TiO ₂ fine particles in the total weight of the first component,
The second component comprises 1.0 to 2.0% by weight of the TiO ₂ fine particles in the total weight of the second component,
Characterized in that the monofilament has a fineness of 1.50 to 2.60 denier, and the mixed filament has a denier of 70 to 100 denier and a filament of 40 to 56 filaments.
delete 2. The high sensitivity latent housing according to claim 1, wherein the cross section of the monofilament is a peanut-shaped having a degree of deformation of 1.4 to 1.5, a flatness ratio of 1: 1.20 to 1.40, and an outer circumferential ratio of 1: 0.67 to 0.85.
delete delete The latent cage according to claim 1, wherein the average number of crimps is 5.5 to 9.5 / cm and the number of napkins is 0.05 / 106m or less.
7. A highly sensitive latent housing according to any one of claims 1, 3, and 6, wherein the minute crimp is 2.0 cycles / cm or less.
Preparing a polyethylene terephthalate chip (first component chip) having an intrinsic viscosity of 0.63 to 0.70 dl / g and a polyethylene terephthalate chip (second component chip) having an intrinsic viscosity of 0.47 to 0.55 dl / g;
A second step of preparing side-by-side type monofilaments by injecting and spinning the first component resin and the second component resin, which have melted each of the first component chip and the second component chip, into a composite spinneret and then cooling it;
Lubricating the monofilament and stretching the monofilament;
A fourth step of thermally fixing the drawn monofilaments; And
And a fifth step of preparing a hornblende yarn comprising multifilaments mixed with a plurality of heat-fixed monofilaments,
The first component of the chip step comprises TiO ₂ particles of the total amount at 1.2 to 2.2 wt% and the second component is a chip including the TiO ₂ fine particles in total weight from 1.0 to 2.0% by weight,
Melting of the first component is performed at 280 ° C to 300 ° C, and that of the second component is performed at 260 ° C to 290 ° C,
The discharge pressure of the first component resin is 100 to 170 kg / cm ² , the discharge pressure of the second component resin is 60 to 160 kg / cm ² ,
Wherein the spinning speed is in the range of 1,400 to 1,650 m / min for the composite spinning of two stages.
delete delete The method of claim 8, wherein the difference in melt viscosity between the first component resin and the second component resin melted before the composite spinning in the second step is 1,000 poise or more, and the difference in melt viscosity between the first component resin and the second component resin, 500 poise. ≪ / RTI >
delete The composite spinneret according to claim 8, wherein the composite spinneret has a spinneret having an odd number of holes of 12 to 70 holes per composite hole area of 114.5? And a composite spin angle of 10 to 28 degrees. Way.
A fabric comprising a highly sensitive potential housing of any one of claims 1, 3 and 6.
A knitted fabric comprising a highly sensitive potential housing of any one of claims 1, 3 and 6.

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