KR100496237B1 - Method of Making Modified Polyester Fibers - Google Patents

Abstract

In composite edible fabrication of at least two or more kinds of polyester filament yarns having different single filament fineness, the single filament fineness of the Taesumdo filament yarn constituting the core is 5 to 7.5 denier and is a circular hollow cross section using a polymer containing a large amount of inorganic particles. The fineness of the fine-grained filament yarn, which constitutes the initial part, is 1.0 ~ 2.5 denier and hollow section or hetero-isometric section using polymer containing a large amount of inorganic particles, and the total fineness is 150 ~ 250 denier. It is a structure in which islands are twisted together to form crimps. In the combustible processing, the yarns and yarns are passed through a hot pin just before the blending, and the yarns are oriented unevenly while causing dyeing differences, resulting in natural two-tone (TWO). -Stone-like appearance and worn-out fabrics that express SPUN LIKE surface effect like spinning yarn It provides the fabric with the required characteristics, soft and dry feel, volume, resilience and natural color, warmth, and light weight, and it does not separate from judging and weaving (shrinkage). It relates to the production of high quality modified polyester fibers which are further differentiated with form stability.

Description

Method of Making Modified Polyester Fibers

The present invention relates to a modified polyester fiber that imparts properties such as natural wool fibers that give a soft touch, resilience and warm feeling, and more particularly, at least two or more polyester hollow filaments having different fineness of single yarn filaments In the composite edible twisting process, the core part is composed of a core fine filament having a circular hollow cross section of single yarn fineness of 5 to 7.5 denier, and a fine hollow fine cross section having a single hollow fineness of 1.0 to 2.5 denier or a heterogeneous fineness cross section. The filament is constructed as a filament, which has a structure in which the deep fine filament of the core is surrounded by the fine fine filament of the core, and unevenly stretched the filament yarns through the hot pin before the interlacing treatment. It is characterized by the fact that it filaments and plywood, fluid tangling and crimping by flammable It relates to a method for producing a modified polyester fiber.

Natural wool fibers are used widely in autumn and winter clothing because they provide a soft touch, resilience and a warm feeling. Therefore, research has been actively conducted to give polyester fibers the same texture as wool fibers by forming crimps on individual fibers like natural wool fibers.

However, in order to develop a polyester processed yarn into a consumable material, in order to obtain a soft touch, the fine yarn filament having fineness of 1.5 denier or less should be used. In this case, the resilient elasticity is weak and the fabric is weak. There is a flaw that can not be reaped.

In addition, if the single filament fineness is increased in order to increase resilience and strength, the object can be achieved, but the texture of the waste-tank fabric is difficult to obtain because the touch is rough. For this reason, various techniques have been proposed, such as interweaving the Taesumdo filament yarn and the Sesumido filament yarn, or giving the wool, but are insufficient to satisfy the texture and process stability at the same time.

Therefore, an improved technique is proposed, which has a soft touch, strength and resilience at the same time by using a seaweed composite processing with a tassum filament yarn and a sesame filament yarn.

The technique for forming crimps in the form of circumference alternately surrounding the filament yarns in the core part among the pleated composite processing is disclosed in Japanese Patent Laid-Open Nos. 54-101946, 55-98931 and 57-29629. It is becoming. In addition, in order to improve resilience and resilience, Japanese Patent Application Laid-Open No. 57-29629 has 3-6 deniers of single yarn filament in the core and 1-4 deniers of single yarn filament in the beginning. Spun like processing is similar to that of spun yarn of coarse fineness of ~ 800 denier, and Japanese Patent Application Laid-Open No. 6-63153 has a filament of 7.5 to 12 denier and a fine fineness of 0.7 to 1.4 Epoxy composite yarns are made of denier and total yarn fineness is 50 ~ 300 denier.

However, the method of Japanese Patent Application Laid-Open No. 57-29629 has a drawback in that the total fineness is 400 to 800 denier and the fineness of the yarn is too large to set the combustible water low. In addition, there is a lack of resilience due to the low fineness of the core, there is a defect in the volume or elasticity in the case of woven fabric.

In addition, Japanese Patent Publication No. 6-63153 has a thickness of 7.5-12 denier, which is a screening, and uses 5-sided and 8-sided shaped cross-section yarns, so the single yarn fineness is thick and the resilience is too large according to the release cross-section effect. There is a problem in the poem, and there is a defect that acts as a factor that degrades the overall texture of the fabric due to a clean stain defect phenomenon due to the difference in the dyeing difference in the interlaced horn island and crimp structure of the fine islands.

In Japanese Patent Laid-Open No. 6-29403, a supply roller is used to control the amount of yarn that is used as the yarn for instant change. Although the method of characterizing the staining effect of spinning yarns by performing the combustible processing of is proposed, there are many problems in the commercial screen as follows.

The first problem is that it is difficult to commercialize from the economical point of view as it requires huge investment cost to construct supply control system equipment for each weight through computer control in mass production application. There is a problem that the control by the load is not properly controlled by the computer electronic and electronic method.

Echo composite bitumen obtained in such a prior art has a soft touch and strength, it is difficult to obtain a luxurious spun-like worsted fabric with a good resilience. In particular, the softness of the fabric is a part that requires improvement in viscosity, which is remarkable when the alkali weight loss treatment is performed to emphasize the touch.

The present invention eliminates the drawbacks described above, has a rich sense of thickness and volume, has a soft and warm touch, and has a strong resilience and natural two-tone texture that combines color and lightness. As a result of intensive studies to provide a modified polyester fiber having a single yarn fineness, the circular hollow cross-section or heterogeneous heterogeneous cross-section having a single core fineness having a circular hollow cross section of 5 to 7.5 deniers is used as the core, and the single yarn fineness of 1.0 to 2.5 denier is deep. The super fine filament with the finer part is used to perform the eccentric composite processing with the total fineness of 150 ~ 250 denier, but the yarn is passed unevenly in the fiber length direction by passing the yarn through a temperature-controlled hot fin before intermixing the core and the yarn. By fluid entanglement with post-mortem core to form crimp by flammability, it is soft and warm like wool fiber It is possible to obtain a modified polyester fiber having a soft touch and excellent rebound elasticity and combines a light feeling to complete the present invention.

The present invention is a hollow cross section obtained from a polymer containing 5 to 7.5 deniers having a single yarn fineness, and having a core part of a polyester fiber filament of a hollow section, and having a single yarn fineness of 1.0 to 2.5 denier and having a large amount of inorganic particles. Using the obtained microfine polyester filament of hollow section or heterogeneous fine island section as the initial part, the fine fine filament of the superfine yarn is passed through a hot pin which can be temperature-controlled before the blending interweaving treatment, so that it is unevenly stretched in the fiber length direction. It is a structure that is crimped by twisting together with screening to form a crimp, which has a spun-like appearance and wool fiber-like texture, and does not become separated from the core and the core (slimping phenomenon). Process passability is achieved.

In the composite heart vinegar processing of the present invention, immediately before the blending of the core and weft yarns, the yarns are drawn unevenly while passing through a temperature-controlled hot fin, resulting in dyeing differences, and expressing natural two-tone (TWO-TONE) in the fabric state. The same surface effect is obtained. The temperature of the hot fin is in the range of 80 ~ 120 ℃ and the draw ratio is drawn unevenly based on the elongation of the material yarn as shown in the dyeing difference in the longitudinal direction of the fiber.

Elongation Ratio (DR) = Material Yarn Elongation (%) of Super Yarn ÷ 100 ± 0.05

If the temperature of the hot fin is 80 ℃ or less, there is a problem that the heat generation due to short-break in the orientation occurs due to insufficient heat transfer to the material yarn, and when the temperature is above 120 ℃, there is little dyeing difference, which is a non-uniform stretching effect, to express natural color. The effect drops.

In order to properly express the dyeability difference in the fiber length direction, selecting a draw ratio (DR) based on the above formula results in a good color in the fabric. In addition, if the lower than the above formula is a problem in the stability of the saddle at the time of combustion, the result is that the manufacturing of the processed yarn is difficult inherently, and when the draw ratio is higher than the above formula, the dark color portion formed in the direction of the lack of dyeing tea expression and fiber length This decreases the surface effect of the two-tone (TWO-TONE), the natural color of the final fabric, which is different from the intended purpose.

The hornsum entanglement prevents the separation of the deep and the deep parts, prevents the occurrence of neps and improves anti-pilling properties. Therefore, the degree of entanglement is preferably 80-120 pieces / m, and when the degree of entanglement is 120 pieces / m or more, the spun-like appearance and the touch are deteriorated. Because of the weakening of the entanglement and intermixing force, the unfastened torpedo (the degree of the filament of the initial filament being pushed while pulling and pulling the work) falls, which causes poor process passability in the higher-order processing process.

Core fineness of filaments The single yarn fineness of 5 to 7.5 denier is suitable. If it is less than 5 denier, the strength and rebound elasticity required for the consumption tank will be insufficient in the case of the fabric, and the thicker the fineness, the better the strength and resilience will be. Since it may act as a problem in the sewing process, which is the clothing step, as a consumption fabric having excellent moderate strength and resilience elasticity, 6 denier ore is preferable.

The finer fineness of the filament at the beginning is 1.0 to 2.5 denier. In order to give a soft touch, it should be 3 denier or less. 2.5 denier or less is preferable to show a higher level of soft feeling. On the other hand, when the single yarn fineness is thinned to 1.0 denier or less, it results in a different result from the texture of the waste fabric which overlies the soft touch. The strength of the single yarn filament is lowered, and the appearance is reduced due to the occurrence of cutting due to the cutting effect even with small friction. There is a problem in that the dyeing fastness, such as peeling (PILLING) in the fabric is bad.

In addition, in pursuit of high quality, the deep-fiber filament of the core is a polymer added with a separate compound and inorganic particles when polymerizing a polyester polymer, and removes insoluble fine particles in the post-spinning process. High-quality quality that can express touch and deep color is possible, and the cross section is hollowed by special detention, and the hollow fiber with 20 ~ 30% hollow ratio is applied to resilience It is effective for producing consumable tissues with abundant sense of volume, and additionally, it is possible to manufacture more differentiated products with the warmth and lightness obtained by containing the air layer in the hollow part, and the finer fineness and filament of the initial part contain a large amount of inorganic particles. It is soft and dry by applying hollow cross section and heteromorphic cross section yarn with one polymer. It gamdeung be able to manufacture high-quality luxury consumption of crude fabrics.

In the manufacture of a polymer expressing drape and dry touch and deep color, a compound having the following structural formula (I) was synthesized from the outside, and then introduced at any stage of the polyester polymerization process to prepare a polymerizer (a). Subsequently, a polymer (b) prepared by injecting a compound having an inorganic particle size of 20 nm to 250 nm during the polyester polymerization process was prepared, and a high-order processing step using a polymer obtained by mixing the separately prepared polymers (a) and (b) with each other. Fine irregularities are formed on the surface of the fiber as it passes through the fabric to produce a fabric having excellent texture and dry touch and deep dry touch and deep color and drape.

..................... (Ⅰ)

(Wherein R ₁ is a monovalent organic group, M is an alkaline earth metal, n1 is 0 or 1, R ₂ and R ₃ are compounds containing an aliphatic hydrocarbon having 1 to 8 carbon atoms, and n 2 is 1 or 2) .)

The amount of the compound of formula (I) was 1.0 to 10.0 parts by weight, the inorganic particles were 1.0 to 10.0% by weight, and the mixing ratio of the polymers (a) and (b) was 10: 1 to 0.1: 1. It needs to be considered in consideration of the following. The good spinning workability is effective at 2.5 parts by weight of compound, 7.0% by weight of inorganic particles, and 2.5: 1 of polymer mixing ratio.

In the composite processing of the present invention, at least two kinds of material yarns having different filament fineness are co-plyed together, and thus, the taisum island filament of the core at the time of manufacturing the composite edible combustible fabrication is a hollow section yarn which is fully drawn while spinning at a spinning speed of 4000 m / m or more. The fineness filament of is a highly oriented unstretched yarn with a spinning speed of 2500-3500m / m. The cross section is a circular cross section, hollow cross section, and heterosimilar cross section cross thread. It is effective to form elongate at the time of elongation because the elongation is higher than that of the filament, which is the screening, because the non-uniform elongation is carried out to impart crimping together with plywood and horn sum entanglement treatment.

The flammable condition has a large difference except that the ratio of the decompression tension (T-2) to the flammability tension (T-1) (K value = T-2 / T-1) is 0.6 or less, which facilitates the formation of the heart structure. None, but the following range is good.

Hot fin temperature: 80-120 ℃

Non-uniform stretching ratio (DR 1): -10 to -50%

Circulating air pressure: 3 to 6 kg / cm 2

Combustible heater temperature: 160 to 200 ° C

-Combustible water (T / M): 1400-2500

-Combustible supply rate (flammable part): +5 to -10%

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited in scope by these Examples.

Example 1, 2, 3

Referring to the present invention in detail through the drawings, Figure 1 shows a manufacturing process chart of the present invention composite edible bitumen.

In preparing two kinds of polyester filaments, the polymer is charged with 100 parts by weight of dimethyl terephthalate, 60 parts by weight of ethylene glycol, 0.083 parts of calcium acetate, 0.038 parts by weight of antimony trioxide, and the like and slowly heated at 140 ° C.

When the methanol oil amount reached about 40 ml and the final internal temperature of the reactor reached 240 ° C., 2.5 parts by weight of the compound of formula (I) was added thereto, and the transesterification reaction was terminated immediately after the ethylene glycol recovery process was completed.

After the product was transferred to the polymerization reactor, 0.04 parts by weight of trimethyl phosphate was added, and the polymer (a) and poly formed after the polycondensation reaction was completed at a temperature of 280 to 285 ° C. for about 2 hours and 30 minutes while reducing the pressure to 0.1 to 2.0 mmHg. In the general polymerization process of the ester, a particle size of 250 nm dispersed in ethylene glycol and 7.0 parts by weight of silica sol are added to the initial stage of the transesterification reaction, so that the polymer (b) is mixed at a mixing ratio of 2.5: 1 so that a stirrer is attached. After drying for 4 hours at 170 ° C. in the conventional method, the Taeseomdo filament was manufactured by the known spin draw method at a spinning speed of 5000m / m so that the hollowness is 25% at 80d / 12f and the hollow ratio is 25%. The polymer produced two types of partially oriented unstretched yarn (POY) 85d / 36f hollow section yarn, 85d / 48f circular section yarn and 123d / 48f release fine cross section yarn at 3000m / m at a spinning speed. Physical properties are shown in Table 1.

Table 1

division 80/12 POY85 / 36 POY85 / 48 POY123 / 48 Cross section Medium Park Type Medium Park Type circle Heteromorphic island ☆ Islands (de) 79.63 84.57 84.76 122.53 Strength (g / d) 4.56 2.60 2.57 2.71 Elongation (%) 26.12 127.37 122.65 132.58 Uniformity (%) 1.12 1.86 1.94 2.47 Hollow rate (%) 24.8 15.7 10.2 -

☆ It consists of fleshy leaf + oval, and fineness tea is 1.0 ～ 2.0de.

When supplying the manufactured filament yarn to a separate supply section, the fine-seam filament yarn, one supply section, passes through a hot pin (75 mm ø) with heating at a temperature of 95 ° C and 7 cm to perform non-uniform stretching. Supply filament yarn of Taeseomdo to supply part and supply plywood while supplying rate + 5%, air pressure 5kg / cm2, and bridge the bridge to 87 pieces / m, and then combustible water is 1850 T / M, combustible heater temperature Was prepared at 187 ° C., with a feed rate of −3%.

Weaving is performed by a well-known method in Italian weaving machine with 1200T / M of soft water, 6840 inclined number and 67 weft / inch in weft density, weaving twill (2/2) and dyeing (color is beige) and processing The following evaluation results are shown in Table 3.

Comparative Example 4, 5, 6

In Example 1, a yarn was prepared in the same manner except that the standard semi-dull (SD) titanium dioxide was 0.4% added and the speci? City was changed to a circular cross section. Taedumdo filament 75d / 6f, 75d / 36f, 100d / 24f, sedodo filament is manufactured 85d / 96f and the physical properties are shown in Table 2, each yarn is combined, processed yarn production without passing through a hot fin Example 1 As shown in Table 3, the results of the weaving and dyeing process were evaluated.

TABLE 2

division 75/6 75/36 100/24 POY85 / 96 Cross section circle circle circle circle Islands (de) 74.16 73.87 98.83 84.26 Strength (g / d) 5.12 5.06 5.14 2.61 Elongation (%) 31.04 29.24 30.67 115.45 Uniformity (%) 1.09 0.95 1.01 2.63

Comparative Example 7

The screening process was carried out as in Comparative Example 4 with different yarn specs with 150/48 poised yarns, super-orientated unoriented yarns with 123/36, and the results are shown in Table 3.

TABLE 3

※Assessment Methods

-Fabric feel and appearance, light weight and warmth:

As it was difficult to quantify by sensual evaluation, each subject was judged based on the following criteria.

◎ More than 9 ○ 6-8 △ 3-5 × 2

-Anti-pilling property: ICI pilling box method

Level 5: No peeling at all

Level 4: slightly peeled

Level 3: moderate peeling

Level 2: A lot of peeling

Level 1: Very Filled

According to the results of Table 3, the composite edible bitumen fabric of the present invention is spun-like and natural surface effect (TWO) because the deep fineness filament of the superficial fine island filament is surrounded by the screening circumference, and the intertwined entanglement and crimp are formed. It is possible to manufacture high quality and luxurious texture fabrics with the required characteristics as -TONE) and consumption tank fabrics.

In particular, the use of polymers with inorganic particles and the use of hollow yarns and cross-sectional yarns make it possible to express deep colors even when developed as a deep-colored color. This product is expected to be widely used in spring, autumn, winter, men's and women's suits as well as pants.

1 is a schematic view showing a manufacturing process of the present invention.

<Description of the symbols for the main parts of the drawings>

1: Combined core part 2: Combined core part

3,5,7,10: supply roller 4: hot pin

6: jamming nozzle 8: heat-setting device

9: flammable device 11: winding device

Claims (4)

In the manufacture of a composite heart sheath combustible work using two or more kinds of polyester filament yarn having different fineness, Single core fineness having a circular hollow section of 5 to 7.5 denier is the core part, and fine hollow filament having a single hollow fineness of 1.0 to 2.5 denier or fine fineness filament having a heterogeneous hetero fine section is used as the core part before entanglement treatment Manufacture of modified polyester fiber, characterized in that the finely divided filament forming a non-uniformly stretched in the fiber length direction by passing through a hot pin that can control the temperature, and then crimped together with the core to form a crimp by flammability. Way The polyester polymerization process according to claim 1, wherein the filaments of the seam and the fineness forming the seam and the sheath of the composite seaweed type combustible work are produced by the reaction of diol and dicarboxylic acid or ester thereof in polyester production. The polymer (a) formed by adding the externally synthesized compound of formula (I) and the polymer (b) formed by adding silica sol dispersed in ethylene glycol in the initial stage of the general polymerization process of polyester are 10: 1 to 0.1. Method for producing a modified polyester fiber characterized in that the hollow filament yarn obtained by melt spinning the polymer mixed in a ratio of 1: 1 ..................... (Ⅰ) (Wherein R ₁ is a monovalent organic group, M is an alkaline earth metal, n1 is 0 or 1, R ₂ and R ₃ are compounds containing an aliphatic hydrocarbon having 1 to 8 carbon atoms, and n 2 is 1 or 2) .) The method of claim 2, wherein the polymer (a) is added 1.0 to 10.0% by weight of the compound of formula (I) to the polymer in the polyester polymerization step, the polymer (b) contains 1.0 to 10.0% by weight of silica sol Method for producing a modified polyester fiber characterized in that The method of claim 4, wherein the fine fine filament constituting the composite heart vinegar twisted fabric is made of modified polyester fibers, characterized in that the mixed leaf and oval in a circular hollow cross-section or heterogeneous fine cross-section and the fineness difference is 1.0 to 2.0 denier Way