KR100226192B1 - Polyester fine finished yarn and that manufacture method - Google Patents

Abstract

[Technical field to which the invention described in the claims belong]

The present invention relates to a polyester micro-fabrication mainly used as yarn for woven fabrics and a method for producing the same.

[Technical Challenges to Invent]

It provides excellent surface feel and bulky feeling of the fabric during fabric manufacturing, and has no defects such as streaky and dyed tea on the final fabric.

[Summary of the solution of the invention]

A high shrinkage polyester yarn having a non-shrinkage ratio (100 ° C × 15 minutes) of 20 to 40% is used as the core yarn, and the extractable polyester composite yarn having a single yarn fineness of 0.01 to 0.5 denier and flammability after extraction of the extract component Using as an effect yarn, the core yarn is covered with the effect yarn in the covering apparatus under the condition of formula (I).

Total thread fineness ≤ Covering density per meter (T / M) ≤ Total thread fineness × 10 (Ⅰ)

[Important Uses of the Invention]

The polyester microfiber of the present invention is mainly used as a yarn for woven and knitted fabrics.

Description

Polyester microfabrication and manufacturing method

The present invention relates to a polyester micro-fabrication and its manufacturing method which is excellent in the surface feel and bulky feeling of the fabric during fabric manufacturing and has no defects such as dyeing difference and streaky on the fabric.

In order to produce a woven fabric having excellent surface feel and bulkiness, until now, a fiber-forming polyester resin and a polyamide resin are compositely spun to produce a split microfiber, and then a split microfiber manufactured alone or split Split microfibers manufactured by air texturing between microfiber yarns and high shrink yarns have been used as warp or weft yarns.

After fabricating the fabric using the microfibers manufactured as such as warp or weft yarns, the split type yarns are divided in the refining process to make the warp or weft yarns extremely fine, and then the fabrics having excellent touch and bulkiness are processed through the normal processing process. I have been manufacturing.

However, in this method, since the split type micro-fabrication is a composite spinning of two-component polymers having different compatibility, there is a problem in that the dyeability difference between the two components occurs after the splitting. In order to solve this problem, two dyeing processes are complicated and costly.

In addition, there is a problem in that a large amount of streaky is generated when the air entanglement treatment or a poor division in the refining process. These problems are more serious in the case of using a split microfiber with high shrinkage yarn and a split microfiber air texturing than the split microfiber with only a split microfiber.

The present invention is to solve the problems of the prior art, the surface of the fabric during fabric manufacturing and excellent feeling of bulky, polyester micro-fabrication and its defect without streaky and dyed tea on the final fabric It provides a manufacturing method.

1 is a process schematic diagram of the present invention.

In Fig. 1, 1 is a core yarn, a highly shrinkable polyester yarn wound bobbin, 2 is the first feed roller, 3 is the effect yarn winding spool, 4 is the hollow spindle, 5 is the second feed roller, 6 is polyester. Microfiber winding bobbin, 7 is a yarn guide.

2 is a cross-sectional view of the polyester micro-fabrication of the present invention in a state before the extraction component is extracted.

3 is a cross-sectional view of the polyester micro-fabrication of the present invention in the state of extracting the extract component.

2 and 3, A is an extract component and B is a fiber forming component.

4 is an enlarged cross-sectional picture of the polyester micro-fabrication of the present invention.

5 is an enlarged photograph of the surface of a fabric using the polyester microfiber of the present invention as a weft yarn.

The present invention relates to a polyester micro-fabrication and its manufacturing method which is excellent in the surface feel and bulky feeling of the fabric during fabric manufacturing and has no defects such as dyeing difference and streaky on the fabric.

Specifically, the core yarn is a highly shrinkable polyester yarn having a non-shrinkage ratio (100 ° C. × 15 minutes) of 20 to 40%, and the effect yarn is composed of a fiber forming component and an extract component, and the single yarn fineness is 0.01 to 0.5 denier after extraction of the extract component. The present invention relates to a polyester microfiber, characterized in that the extractable polyester composite yarn has been subjected to a flammable treatment, and the core yarn is covered by the effect yarn under the condition of the following formula (I).

Total yarn fineness ≤ Covering density per millimeter of machined yarn (T / M) ≤ Total yarn fineness × 10 (I) The present invention also relates to (A) a high shrinkage poly with a non-shrinkage ratio (100 ° C. × 15 minutes) of 20% to 40% The ester yarn is fed to the second feed roller (5) through the hollow spindles (4) of the first feed roller (2) and the effect yarn winding spool (3), and at the same time, it is composed of the fiber forming component and the extract component with the effect yarn (B). The single yarn fineness after extraction of the extract component is 0.01 ~ 0.5 denier, and the feed type polyester composite yarn processed by the flammable processing is supplied to the second feed roller 5 from the effect yarn winding spool 3 which is rotated by a separate driving device. (C) Polyester micro-fabrication, characterized in that the core yarn is covered with the effect yarn in the section from the effect yarn winding spool (3) to the second supply roller (5) under the condition of formula (I). It relates to a manufacturing method of.

Finished yarn total fineness ≤ Covering density per meter (T / M) ≤ Finished yarn total fineness x 10 (I) Hereinafter, the present invention will be described in more detail.

The present invention consists of a fiber-forming component and an extract component, and stretch processing of an extractable polyester composite yarn having a single yarn fineness range of 0.01 to 0.5 denier after extraction of the extract component and a specific shrinkage ratio (100 ° C. × 15 minutes) of 13 to 15%. The effect yarn and the core yarn are covered with one processed yarn as an effect yarn, and a high shrinkage polyester yarn having a single yarn fineness of 1.5 to 4 deniers and a non-shrinkage ratio (100 ° C. × 15 minutes) of 20 to 40% as a core yarn. do.

Extractive composite yarn used as an effect yarn in the present invention is used as a copolyester with the addition of metal sulfonate and polyalkylene glycol as an extraction component as a specific manufacturing method 100 parts by weight of dimethyl terephthalate, 5-sodium dimethyl isophthalate 7.6 parts by weight, 40 parts by weight of ethylene glycol and 0.06 parts by weight of zinc acetate were placed in an autoclave and subjected to a transesterification reaction with distillation of methanol produced at 150 to 230 ° C. After the addition of 0.02 parts by weight of phosphoric acid and phosphoric acid, the reaction is carried out in a vacuum of about 1 mmHg or less for about 3 hours while the temperature is raised to 230 to 280 ° C.

An extractable polyester composite yarn is prepared through the composite spinning mold using the extracted component thus prepared and a conventional polyethylene terephthalate having an intrinsic viscosity of 0.65 as a fiber forming component. At this time, the fiber-forming component complex spinning with the extraction component is not limited to polyethylene terephthalate.

The high shrinkage polyester yarn used as the core yarn in the present invention is prepared by a conventional yarn manufacturing method, but is a poly copolymer of 2,2-dimethyl-1,3-propanediol (2,2-dimethyl-1,3-propandiol) The ester could be expected to have an excellent effect on shrinkage. The single yarn fineness is preferably 1.3 to 4 denier in order to provide flexibility and ductility. If it is less than 1.3 denier, the drape property is insufficient, and if it is more than 4 denier, it lacks flexibility and causes color unevenness due to dyeing of deep color compared to microfiber after extraction. If the non-shrinkage ratio is less than 20%, the sufficient shrinkage effect cannot be expected, resulting in poor sublime feeling, and if the non-shrinkage ratio is higher than 40%, there is a problem of increased aftertaste caused by excessive fabric shrinkage and a decrease in tear strength. .

The extractive composite yarn used in the present invention may be either an eccentric separation type, a melt polydivision type or a sea island type.

Next, the manufacturing method of the present invention will be described in detail with reference to the drawings.

First, the extraction polyester composite yarn is stretched using a flammable treatment apparatus, and then wound around the effect yarn winding spool (3). At this time, the flammable conditions are prepared under ordinary flammable conditions. The flammable device may be any of a spindle type, a disc type and a belt type.

A highly shrinkable polyester yarn having a non-shrinkage ratio of 20 to 40% is passed from its winding bobbin (1) to the second feeding roller (5) and through the hollow spindle (4) of the effector winding spool (3). ) And at the same time as the core yarn, the above-mentioned extraction type polyester composite yarn wound up in the effect yarn winding spool (3) by the preliminary treatment is fed from the take-up spool (3) to the second feed roller (5) to the effect yarn.

At this time, since the effector winding spool 3 is rotated by a separate driving device, the effector wraps the core yarn in the section from the effector winding spool 3 to the second supply roller 5 (hereinafter referred to as covering). This occurs to produce a polyester microfiber.

The produced polyester microfiber is wound on a winding bobbin (6). In the covering step, the density of the effect yarn per 1 m of the processed yarn, ie, the covering density (hereinafter referred to as T / M), is preferably set in a range of 1 to 10 times the total fineness of the polyester microfiber. If the covering density (T / M) is less than the total yarn fineness, the machinability is poor and the effector does not sufficiently wrap the core yarn, resulting in streaky on the final fabric.

On the other hand, when the covering density (T / M) exceeds 10 times the total yarn fineness, this shrinkage effect and bulkiness are not sufficient.

After manufacturing the fabric of the polyester microfiber of the present invention in a warp or weft yarn and extracting the extraction component in the refining process to fine the warp or weft yarn by pre-heating, buffing, dyeing and final heat treatment under normal processing conditions The processed paper is excellent in surface feel and bulkiness, and there are no defects such as difference in dyeability and streaky.

Such effects are not covered by the extractable microfine composite yarn, which is a core yarn, highly shrinkable polyester yarn, which is the core yarn during the microfine fabrication of the present invention. do. In addition, the extraction type micro-composite that is an effect yarn during the polyester micro-fabrication of the present invention can minimize the dyeing difference because both the extraction component and the fiber-forming component uses a polyester resin. In addition, the polyester microfiber of the present invention can prevent streaky generation due to air texturing because it does not undergo an air entanglement process during the manufacturing process.

In this invention, a non-shrinkage rate is measured as follows.

[Non-shrinkage rate (SR,%)]

After measuring the original yarn length (ℓ ₀ ) and the treated yarn length (ℓ ₁ ) before processing the yarn for 15 minutes in boiling water at 100 ℃, substitute these measured values in the following equation to obtain the specific shrinkage ratio (SR). .

The following describes the present invention in more detail by way of examples and comparative examples. However, the present invention is not limited to the following examples.

Example 1

Co-polyester copolymerized with metal sulfonate and polyalkylene glycol was used as an extraction component, and polyethylene terephthalate having an intrinsic viscosity of 0.65 was used as a fiber-forming component. An extractable polyester composite yarn of 130 denier / 48 filaments having a fineness of 0.2 denier is prepared. The extracted polyester composite yarn is stretched in a spindle-type combustor under conditions of a heat treatment temperature of 180 ° C., a heat treatment time of 0.45 sec, and a heat treatment overfeed rate of 0.5%.

On the other hand, a highly shrinkable polyester yarn of 50 denier / 25 filaments having a single yarn fineness of 2 denier is prepared from a copolymerized polyester resin copolymerized with 2,2-dimethyl-1,3-propanediol. The extractable polyester composite yarn combusted was applied as an effect yarn, and the highly shrinkable polyester yarn was supplied to the covering device with a core yarn to cover the covering density to be 550 (T / M) per 1m of the finished yarn, thereby producing a fine polyester fabric. Manufacture. Using the polyester microfiber as a weft yarn, and using a twisted yarn of polyester 75 denier / 36 filament twisted twisted yarn at 1,200 T / M as a warp yarn 5 pieces of total weft cover factor of 28.4 Weaving

Woven fabrics are fabricated by miniaturizing refined and extractable polyester composite yarns in a rotary washer with a temperature of 125 ° C and caustic soda concentration of 1.0% o.w.s, followed by preheating, buffing, dyeing and final heat treatment. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

Example 2

Co-polyester copolymerized with metal sulfonate and polyalkylene glycol was used as the extraction component, and polyethylene terephthalate having an intrinsic viscosity of 0.65 was used as the fiber-forming component. An extractable polyester composite yarn of 130 denier / 48 filaments having 0.05 denier is prepared. The extracted polyester composite yarn is stretched in a spindle-type combustor under conditions of a heat treatment temperature of 180 ° C., a heat treatment time of 0.45 sec, and a heat treatment overfeed rate of 0.5%.

On the other hand, a highly shrinkable polyester yarn of 50 denier / 25 filaments having a single yarn fineness of 2 denier is prepared from a copolymerized polyester resin copolymerized with 2,2-dimethyl-1,3-propanediol. The extractable polyester composite yarn combusted was applied as an effect yarn, and the highly shrinkable polyester yarn was supplied to the covering device with a core yarn to cover the covering density to be 550 (T / M) per 1m of the finished yarn, thereby producing a fine polyester fabric. Manufacture. Using the polyester microfiber as a weft yarn, and using a twisted yarn of polyester 75 denier / 36 filament twisted twisted yarn at 1,200 T / M as a warp yarn 5 pieces of total weft cover factor of 28.4 Weaving

Woven fabrics are fabricated by miniaturizing refined and extractable polyester composite yarns in a rotary washer with a temperature of 125 ° C and caustic soda concentration of 1.0% o.w.s, followed by preheating, buffing, dyeing and final heat treatment. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

Example 3

Co-polyester copolymerized with metal sulfonate and polyalkylene glycol was used as an extraction component, and polyethylene terephthalate having an intrinsic viscosity of 0.65 was used as a fiber-forming component. An extractable polyester composite yarn of 250 denier / 96 filaments having a fineness of 0.2 denier is prepared. The extracted polyester composite yarn is stretched in a spindle-type combustor under conditions of a heat treatment temperature of 180 ° C., a heat treatment time of 0.45 sec, and a heat treatment overfeed rate of 0.5%.

On the other hand, a highly shrinkable polyester yarn of 50 denier / 25 filaments having a single yarn fineness of 2 denier is prepared from a copolymerized polyester resin copolymerized with 2,2-dimethyl-1,3-propanediol. The extractable polyester composite yarn combusted was applied as an effect yarn, and the highly shrinkable polyester yarn was supplied to the covering device with a core yarn to cover the cover density such that the covering density was 350 (T / M) per 1 m of the finished yarn. Manufacture. Using the polyester microfiber as a weft yarn, and using a twisted yarn of polyester 75 denier / 36 filament twisted twisted yarn at 1,200 T / M as a warp yarn 5 pieces of total weft cover factor of 28.4 Weaving

Woven fabrics are fabricated by miniaturizing refined and extractable polyester composite yarns in a rotary washer with a temperature of 125 ° C and caustic soda concentration of 1.0% o.w.s, followed by preheating, buffing, dyeing and final heat treatment. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

Comparative Example 1

The effect yarn is a split type microfiber of 150 denier / 72 filaments composed of polyamide and polyester using a processed yarn stretched under the condition of 170 ℃ heat treatment time, 0.45 second heat treatment time and 0.3% heat treatment over feed rate in a spindle type combustor. Except for producing the processed paper under the same conditions as in Example 1. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

Comparative Example 2

The processed paper is manufactured under the same conditions as in Example 1 except that the covering density per 1 m of the processed yarn is 100 T / M. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

Comparative Example 3

The processed paper is manufactured under the same conditions as in Example 1 except that the covering density per 1 m of the processed yarn is 1,900 T / M. Table 1 shows the results of measuring the bulkiness, fabric appearance, and tear strength of the manufactured paper.

TABLE 1

The polyester microfiber of the present invention is wrapped by the extract type microfine composite yarn in which the high shrinkable polyester yarn, the core yarn, is an effect yarn, and does not appear to the outside.

As a result, no dyeing differences or streaky defects may occur between the core yarn and the effect yarn.

In addition, the extraction type microfine composite yarn, which is an effect yarn during the polyester microfabrication of the present invention, can use a polyester-based resin in both the extraction component and the fiber forming component, thereby preventing the dyeing difference due to the resin type difference. Construction can prevent streaks caused by air texturing because there is no air entanglement process during the manufacturing process.

Therefore, when the fabric is manufactured by the polyester microfiber of the present invention, not only the surface feel and the bulky feeling are excellent, but also the fabric processed paper having no defects such as difference in dyeability and streaky can be produced.

Claims (9)

The core yarn is a highly shrinkable polyester yarn, the effect yarn is composed of a fiber-forming component and an extracting component, and the single yarn fineness is 0.01-0.5 denier after extraction of the extracting component and is an extractable polyester composite yarn subjected to a flammability treatment, and the core yarn is the effect yarn Polyester microfiber, characterized in that covered by. The polyester microfine processing according to claim 1, wherein the specific shrinkage (100 占 폚 x 15 minutes) of the highly shrinkable polyester yarn which is the core yarn is 20 to 40%. The polyester microfiber according to claim 1, wherein the core yarn is covered by the effect yarn under the condition of the following formula (I). Total thread fineness ≤ Covering density per meter (T / M) ≤ Total thread fineness × 10 (Ⅰ) The polyester microfiber according to claim 1, wherein the fiber forming component of the effect yarn is polyethylene terephthalate. 2. The polyester microfiber according to claim 1, wherein the extract component of the effect yarn is a copolyester obtained by copolymerizing a metal sulfonate and a polyalkylene glycol. The polyester microfiber according to claim 1, wherein the core yarn is a copolymerized polyester obtained by copolymerizing 2,2-dimethyl-1,3-propanediol. The polyester microfabrication according to claim 1, wherein the extractable polyester composite yarn is an eccentric separation type, a polydissolution type, or an island-in-sea type. The fine microfabrication of polyester according to claim 1, wherein the fineness of the core yarn is 1.3 to 4 denier. (A) Through the hollow spindle (4) of the first feed roller (2) and the effect yarn winding spool (3) to the core yarn high shrinkage polyester yarn having a non-shrinkage (100 ℃ x 15 minutes) of 20 to 40% It is supplied to two feed rollers (5) and at the same time (B) effect yarn, which is composed of fiber-forming component and extract component, and after extraction of extract component, single yarn fineness is 0.01 ~ 0.5 denier, and it is operated separately by extraction type polyester composite yarn (C) Equation (I) in the section from effect yarn winding spool (3) to second feed roller (5) supplied from the effect yarn winding spool (3) rotating by the device. A method for producing a polyester microfiber, characterized in that the core yarn is covered with the effect yarn under conditions. Total thread fineness ≤ Covering density per meter (T / M) ≤ Total thread fineness × 10 (Ⅰ)

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