TWI226912B - Ultrafine polyester fiber-woven or knitted fabric - Google Patents

Abstract

Disclosed is woven or knitted fabrics made of polyester ultrafine fibers, comprising the polyester ultrafine fibers of 0.1 to 0.5 deniers/70 or more filaments, which is manufactured by melt-spinning and drawing under the condition of a hot zone of 20 mm or shorter while a distance between a cooling air blowing side and filaments is controlled within a range from 2 to 30 mm according to melt-spinning and drawing method. The polyester woven or knitted fabrics made of polyester ultrafine fibers, which do not require additional sectional and elution processes, has a good lightness and the sense of volume, and soft sense to the touch and an appearance reaching a natural woven or knitted fabric level. Also, the woven or knitted fabrics made of the polyester ultrafine fibers are superior to woven or knitted fabrics made of a conventional conjugated yarn in color fastness.

Description

1226912 发明 'Invention design: description (invention description should state: the technical field, prior art, content, embodiments, and drawings of the invention are briefly explained) [turn the technical field of the invention] The present invention relates to ultra-fine polyester fiber fabric Or woven fabrics, especially those made of ultra-fine polyester fibers, the above-mentioned ultra-fine polyester fibers have good brightness and volume, good foldability and softness, and soft touch, and close to natural fabrics Or the appearance of woven fabrics, which can be applied to outerwear, such as jackets, clothes, shorts, coats and micro-cowhide, fine wool fabrics, wool, underwear, windbreakers, toys, and detergents. [Prior art] A fabric or woven fabric composed of polyester fibers exhibits excellent physical properties and three-dimensional structural stability. Polyester fiber is currently the most widely used in synthetic fiber, because it can be manufactured through many types of spinning and post-processing procedures, and a wide range of products. Although in general, polyester fiber fabrics or woven fabrics are inferior to natural fiber fabrics or woven fabrics, and are not easy to be made to have the characteristics of a southern mouth and natural appearance. Ultrafine fibers having a monofilament fineness of 0.5 denier or less can be produced by the method. One method is the direct spinning method, in which the yarn is drawn down during the spinning step. f One method is the composite spinning method, in which fluorene molecules containing two or more components are spun into conjugate fibers at the same time, and a part of the components is then separated or washed out. Disadvantages of fabrics or braids composed of separated or soluble conjugated fibers are poor physical properties such as foldability, softness, and abrasion resistance, high production costs, and poor color fastness because of the need for Complex separation or solution strictness. As for the direct spinning method, it is difficult to completely reduce the monofilament fineness, which means that the monofilament fineness cannot be reduced to less than 0.1 denier. But S] continuation page (if the invention description page is not enough, please note and use the continuation page) — and continue to 1226912

The advantage of the spinning method is that no other weight reduction treatment is required, and the production cost ^ The fabric or woven fabric prepared according to the direct method has a soft feel or the texture of the woven fabric. The Korean Patent No. 181183 of Zhibang Co., Ltd., which is composed of ^ Gong_wei, discloses that according to the direct spinning method, the ultra-fine fiber time method, the cooling section length and residence time of its " sweep reactor are controlled at 2 (M2Gmm and 4 minutes or less to obtain polyfilament ultrafine fibers with a monofilament fineness of 1.G denier or less. However, the above methods have low spinning efficiency, uneven physical properties of the fibers, and poor uniformity ratios. Due to the rapid quenching and uneven cooling of the fibers when the monofilament fineness is 0.5 denier or less, there have been many research and development efforts to produce monofilament fineness of 0.5 denier or more based on the direct spinning method. Small polyg purpose ultrafine fibers to develop high value-added materials. For example, the applicant's Korean patent application number 10-20_001_〇〇38〇74 disclosed the fineness of the monofilament produced by the -new direct spinning method Method for Q 5 denier or smaller polyester microfibers. A fabric or woven fabric containing the above polyester microfibers has the advantage that the fabric or woven fabric has a good brightness and volume feeling_and conventional polyester fabrics Compared with woven fabrics, and soft feel and excellent appearance-close to Nylon / Ester mixed fiber or polyester / copolyester mixed fiber. Summary of the Invention Therefore, 'an object of the present invention is to provide a polyester fabric or a woven fabric composed of polyester ultrafine fibers according to the melt spinning and spinning method in order to avoid the above-mentioned disadvantages' It contains polyester microfibers with a fineness of 〇1_〇 · 5 denier / 7 () or even monofilament. A fabric or woven fabric composed of polyester microfibers has a soft 1226912 soft feel 'and The appearance of natural fabrics or woven fabrics is as good as the appearance of polyester fabrics or woven fabrics composed of separated or soluble common fibers produced by the composite spinning (yarn) method, and no other separation or solution treatment is required. However, it is known that the common fiber composition fabric or woven fabric requires other separation or solution treatment. The polyester fabric or woven fabric of the present invention also has excellent color fastness, abrasion resistance, brightness and volume feeling, good interstability, and Excellent softness. [Content of the invention] ⑩ The present invention is characterized in that the fineness of the polyester ultrafine fiber is / 70, the above silk. More specifically, the polyester fabric of the present invention is characterized by U fine fibers for cotton. be used to And the rayon fiber or natural fiber yarn is made by melt spinning and yarn drawing method. The polyester superfine fiber of Dan 22 is monofilament. When 1 is melt spun or drawn, there are _ hot zones, which are the range and 2_3. 〇mm range. For example, when the length of the loop area is larger than the random, the spinning efficiency and the uniformity ratio of the yarn decrease. 20mm, it is impossible: On the other hand, when the above distance is smaller than that The formation is due to the collision between the filaments. It is divided into two parts from the conventional: Γ purpose ultra-fine fiber fabric or woven fabric, which has a quality, physical properties such as soft feel and softness, dagger / knife out or solution treatment, and No fabric problems, such as ·% F, and low fabric fastness or color fastness, color fastness, and washfastness 6 1226912

It is clear that the knitting yarn of different shrinkage yarns of fine fiber t can replace the ultra-high shrinkage correction of polyester, and the clothing 1 " is a combination of a polyester fiber and a polyester 35%, and the fineness of the early silk It is 2.0β10 denier and boiling water shrinkage is 15_ unit ❶ / m. The number of knitting yarns with two different stretch yarns is 20_50 嶂. The purpose is to use superfine fiber or knitting yarns with two different shrinkage yarns as weft. Snail, y, or natural fiber yarns such as cotton yarns and ramie yarns can also be used as the fabric of the present invention exhibiting the calf leather effect, which is caused by the knitted yarn of polyester superfine fiber and polyester superfine fiber, two different shrinking yarns. / Xi evaluates the fabric through subjective tests, showing that the fabric of the present invention has a quality comparable to that of fabrics containing conjugated fibers and soluble conjugate fibers. The physical properties are: the softness and softness of a touch mold, and The fabric of the present invention is excellent in foldability: it is a fabric manufactured by a conventional separation and soluble method. As for the fastness to washing color, the fabric using the separated and soluble common car fibers is level 1 or higher, and the fabric of the present invention is level 3 or 4 which is a better level. At the same time, the present invention provides a woven fabric composed of polyester microfibers, the manufacture of which is made by applying a polyester superfine fiber weft or warp knitting machine generated according to an improved direct spinning method.编织 The woven fabric of the present invention is excellent in brightness and volume, and also excellent in quality, because the polyester ultrafine fiber has excellent physical properties, and is excellent in uniformity ratio. In addition, this woven fabric has a considerable softness such as a woven fabric made of conjugated fibers. '' The above woven fabrics according to the present invention include knitted yarns with two different shrinkage yarns. The preparation is made by combining and knitting polyester ultrafine fibers and polyester high-shrinkage yarns with a monofilament fineness of 2-10 denier and boiling water. The shrinkage is 15-35%, so that the number of knitting yarns with two different stretch yarns is 20-50 units / m. For example, it is very difficult for polyester high-shrink yarns to have a monofilament fineness of less than 2 deniers. 7 1226912 Description of the Invention Continued to make a braided yarn with two different shrinkage yarns. On the other hand, when the monofilament fineness is greater than Doni's weight increases. In addition, when the boiling water shrinks less than 15%, the soft touch is poor because the shrinkage is very low. On the other hand, when the boiling water shrinks more than 35%, it is very difficult to manufacture polyester high-shrink yarn. [Embodiments] Examples and Comparative Examples The present invention will be better understood from the following examples, which are intended to disclose rather than limit the present invention. Example 1 A polyester with an intrinsic viscosity of 0.63 is melt-spun through a spinning nozzle. The spinning nozzle is composed of 192 holes, each hole has a diameter of 018 mm and a length of 0.54 mm. The spinning conditions are 295 ^. The yarn speed was 2,800 m / min, and the cooling air temperature was 20 °. 〇, the length of the hot zone is 15nm and the distance between the cooling air blowing side and the wire is 30mm. As a result, the undrawn yarn was drawn into a polyester ultrafine fiber having a monofilament fineness of 0.2 denier under the drawn yarn ratio of 1.521. Polyester ultrafine fibers were thus produced, which were monofilaments of 0.2 denier / 70 or more, which could be used for weft and warp. After weaving warp and weft, the resulting fabric is then post-treated, such as scouring, pre-setting, dyeing, and thermosetting.

Fabrics composed of polyester microfibers were evaluated by subjectively testing the softness, softness, and foldability of touch. As for color fastness to washing, the KSK 0430 method was used to test. The results are shown in Table i. X Example 2 The procedure of Example 1 was repeated, except that the collection fibers having a monofilament fineness of denier were used as the weft of the fabric. The results are shown in Table i. 1226912 Description of the invention Continued · Example 3 The procedure of Example 1 is repeated, except that the weft of the fabric is knitted with two different shrink yarns, and its manufacturing is made by combining and knitting a monofilament fineness of 0.2 denier polyester super t The fiber and polyacetate are high, and the shrinkage yarn has a monofilament fineness of 2.5 denier and a boiling water shrinkage of 25%, so that the knitting number of the knitting yarn having two different shrinkage yarns is 20-50 units / m. The results are shown in Table i. Example 4 The procedure of Example 1 was repeated. Except for 30 counts of cotton, natural fibers were used as the weft of the fabric. The results are shown in Table i. Example 5 The procedure of Example 1 was repeated, except that the warp of the fabric was knitted with two different shrinkage yarns, and its manufacturing was made by combining and knitting monofilament fine I. G.2 denier microfiber and polyester high The shrinkage yarn has a monofilament fineness of 2.5 denier and boiling water shrinkage of 25%, so that the knitting number of the braided yarn with two different shrinkage yarns is 50f / m, while the monofilament fineness is 1 denier. Ester fiber is used for weft. The results are shown in Table Comparative Example 1. In warp, the split type conjugate fiber (Nylon / polyester split type) and weft, that is, monofilament fineness 1 denier poly S purpose fiber, were woven to produce a fabric. After finishing, such as scouring, pre-setting, weight reduction, dyeing, and thermosetting, fabrics made of co-light fibers are processed. The resulting polyester fabric was evaluated by subjective testing and the KSK 0430 method. The results are shown in Table 1. Comparative Example 2 The procedure of Comparative Example 1 was repeated, except that the warp of the fabric was knitted with two different yarns, and its production was made by merging and knitting to separate the consumable fibers, polyacetate, and shrinking yarn, and the material fineness was 2.5 denier. Nitrile water shrinkage is 25% to get 9 1226912 Description of the invention Continued 50 units / m. The results show that the knitting Jr number of the knitting yarn having a different spun yarn is shown in Table 10. Comparative Example 3 The procedure of Comparative Example 1 was repeated, except for the warp. The results are shown in Table 丨. Except that the valley-type rhyme dimension can be used for weaving. Comparative Example 4 The procedure of Comparative Example 1 is repeated. Except that the sea-island type soluble conjugate fiber is used only as a warp for fabrics. The results are shown in Table 1. Life,, 釈, 隹, 隹 use, comparison implementation with 5 repeat ratio, 乂 Example! In addition to the monofilament fineness of 0.7 denier and industrial denier's t Sg fibers, they are used for weft and warp, respectively. The results are shown in Table 1. Example 6 The polyester ultrafine fiber of Example 1 was used as the surface structure yarn, and then knitted with 100 denier / 48 silk-like fibers, and used as the back structure yarn, and the gray woven fiber The lock warp knitting structure is 24 gauges. After iron, the grey cotton was refined and pre-fixed at 17 ° C for 3G seconds. After that, the gray cotton was dyed with a liquid dyeing machine, and then heat-set at 17 ° C for 30 seconds to generate a woven fiber. Using the KSK 043G method and the main test method to estimate the color fastness of the woven fabric, the softness of touch, brightness, Softness and foldability. The results are shown in Table Example 7. The knitting yarn having two different stretch yarns was manufactured by combining and knitting the monofilament fineness of 0.2 denier polyester ultrafine fiber of 3 and 30. Polyester high shrinkage yarn of denier / 12 yarns, so that the knitting number of the knitting yarn with two different shrinking yarns is 50 units / m. Then, a circular fabric is produced from the knitting yarn with two different shrinking yarns. 1226912 Description of the invention continued The page was evaluated by subjective testing and the KSK 0430 method to evaluate the circular fabric. Comparative Example 6 The procedure of Example 7 was repeated, except that the polyester fiber with a fineness of 7 filaments was used as the surface structure yarn. Comparative Example 7 The procedure of Example 7 was followed, except that the polyester / copolyester soluble conjugate fiber and 50 denier / 24 silk polyester fiber were used as the surface structure yarn and the back structure yarn, respectively.

Comparative Example 8 The procedure of Example 7 was repeated, except that the nylon / polyester split type conjugate fiber and 50 denier / 24 filament polyester fiber were used as the surface structure yarn and the structure yarn, respectively. Comparative Example 9 The procedure of Example 7 was repeated except that a poly-S-like fiber having a monofilament fineness of 15 denier and a high-density yarn of 30 denier / 12 filaments were used. The resulting circular fabric is subjected to weight reduction. Comparative Example 10

The procedure of Example 7 was repeated, except that the dragon / polyacetic acid separation type coexisted: and 3. Danny / 12 silk high shrink yarn. The resulting circular fabric is then reduced by weaving to provide a fabric composed of polyδ purpose ultrafine fibers or a fabric or braid that shows a micro-cowhide effect without the need for other separation and dissolution of conventional conjugate fibers. Out or solution treatment. / 、 ~ 、 Dagger Description page 1226912 The fabric or woven fabric composed of polyester superfiber has excellent color fastness, foldability, and soft touch, and has an appearance comparable to that of natural or woven fabrics. The polyester fabric or knitted fabric of the present invention can be applied to outer garments such as jackets, clothes, shorts, coats and micro-cowhide, fine wool fabrics, wool, underwear, windbreakers, toys and detergents. The scope of rights of the present invention is defined by the scope of the attached application patents, rather than the above description. All changes that do not depart from the spirit of the present invention are defined by the scope of the attached application patents. 12 1226912 --- Description of the invention ϋΜ Table 1 Yarn touch softness softness foldability washability color fastness warp and weft Example 1 0.2 denier PET superfine yarn 0.2 denier PET superfine yarn Θ Θ Θ 3 ~ 4 Examples 2 1 Denny PET yarn Θ Θ Θ 4 Example 3 Knitted yarn with two different shrinkage yarns 1) 0.2 Denny PET superfine yarn 2) 2.5 Danny high shrinkage yarn Θ Θ Θ 3 ~ 4 Example 4 Cotton Θ Θ Θ 4 Example 5 Knitted yarn with two different shrinkage yarns 1) 0.2 denier PET superfine yarn 2) High shrinkage yarn 1 denier PET yarn Θ Θ Θ 3 ~ 4 Comparative Example 1 Split conjugate yarn 1 Denny PET yarn Θ 〇Δ 2 Comparative Example 2 Knitted yarn with two different shrinkage yarns 1) Split conjugate yarn 2) High shrinkage yarn 1 Denny PET yarn Θ Θ 〇 2 Comparative Example 3 Soluble type Yoke fiber 1 Denny PET yarn Θ Θ △ 1 ~ 2 Comparative Example 4 Sea-island type soluble conjugate fiber 1 Danny PET yarn Θ Θ X 1 ~ 2 Comparative Example 5 0.7 Danny PET 1 Denny PET yarn XX 〇 4 PET: polyethylene terephthalate

13 1226912 Description of the invention_page table 2 Gray yarn touch softness brightness softness folding resistance washing color fastness (, grade) Example 6 Surface structure yarn 0.2d Grade back structure yarn 100/48 Θ Θ Θ Θ 4 Example 7 Knitting yarn with two different shrinkage 0.2d grade + 30/12 Θ Θ Θ Θ 3 ~ 4 Comparative Example 6 Surface structure yarn 0.7d Grade back structure yarn 100/48 XX △ 〇4 Comparative Example 7 Surface structure yarn can Dissolved conjugate fiber back structure yarn 50/24 Θ 〇Θ 〇1 ~ 2 Comparative Example 8 Split conjugate fiber back structure yarn 50/24 Θ Θ 〇X 2 Comparative Example 9 Knitted yarn with two different shrinkage yarns 1.5d class + 30/12 Δ X 〇〇3 ~ 4 Comparative Example 10 Knitting yarn with two different shrinkage yarns separates conjugate fiber +12/30 Θ Θ X 〇 2

1. Evaluation of color fastness to cleaning by KSK 043 0 method. 2. Subjective tests evaluate touch softness, brightness, softness, and foldability. Θ: Very good, 〇: Good, △: Moderate, X: Poor 14 1226912 -—— π Description of the invention; _ page · [Schematic description 弭] None

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Claims (1)

1226912 Patent application scope 1. A kind of ultra-fine polyester fiber fabric, which is composed of ultra-fine polyester fiber used as warp and polyester fiber or natural fiber as weft, and the fineness of the ultra-fine polymer fiber is 0.1. -0.5 Denny and 70 to 500 yarns, which are prepared by melt spinning and drawn yarn, wherein the hot zone length is 0-20mm, and the distance from the cold air blowing side to the silk is controlled within the range of 2-30mm. 2. The ultra-fine polyester fiber fabric described in item 丨 of the patent application, wherein a braided yarn of a different shrinkage yarn is used as a warp, and the manufacture is made by combining and knitting the ultra-fine polyester fiber and the polyester high-shrinkage yarn. With a fineness of 20-10 () denier monofilament and a shrinkage of 15-35% in boiling water, the number of knitting yarns with two different shrinking yarns is 20-150 units / m. 3. The ultra-fine polyester fiber fabric according to item 1 of the scope of the patent application, wherein the polyester fibers used for weft are 0.1-0.5 denier and 70 to 500 filaments of polyester ultra-fine fibers. 4. The ultra-fine polyester fiber fabric described in item 1 of the scope of the patent application, in which knitting yarns of two different shrinking yarns are used as wefts, and the manufacturing is made by combining and knitting the ultra-fine polyester fibers and polyester with high shrinkage The fineness of the yarn from 2.0 to 10 denier monofilaments and the shrinkage in boiling water ranged from 15 to 5%, so that the number of knitting yarns with two different shrinkage yarns was 20 to 50 units / m. 5. The ultra-fine polyester fiber fabric according to item 1 of the scope of the patent application, wherein the weft is a skein yarn or a natural fiber yarn such as a cotton yarn. 3 Continued pages (Please note and use the continuation pages when the patent application page is insufficient.) 16 1226912 _ Patent application continued page 6 · A kind of superfine polyester fiber woven fabric, of which And 70 to 500 monofilament polyester microfibers are used for weft or warp knitting. They are made by spinning and spinning. The hot zone length is 0-20 mm. Cold air blows from the side to the silk. The distance is controlled within the range of 2-3Omm. 7. The ultra-fine polyester fiber fabric according to item 6 of the scope of the patent application, wherein a braided yarn of a different shrinkage yarn is used for weft or warp knitting, and the manufacturing system merges and knits the polyester ultra-fine fiber and polyester high Shrinkage of 2 m 〇 Denny monofilament fineness and boiling water shrink 15-155%, so that the number of knitting yarns with two different shrinkage yarns is 20-150 units / m. 8 · — A kind of ultra-fine polyester fiber fabric, composed of knitted yarns with two different shrinkage yarns used as warp, and polyester fibers or natural fibers used as wefts. The knitted yarn is manufactured by combining and knitting. 1- 0.5 denier and 70 to 500 silk polyester microfibers and polyester high-shrink yarn with 2.0-10 denier monofilament fineness and boiling water shrinkage of 15-35%, making it a knitting yarn with two different shrinkage yarns The number of knitting is 20-150 units / m. The above polyester ultra-fine fibers are prepared by melt spinning and spinning. The hot zone length is 0-20 mm, and the distance from the cold air blowing side to the silk is controlled at 2-30 mm. 9 · A superfine polyester fiber fabric, knitted with two different shrinkage yarns for weft or warp knitting. The manufacturing is made by combining and knitting 〇1_〇5 denier and 70 to 500 silk polyester superfine fibers And polyester high-shrink yarns with a density of 20 to 100 denier monofilament and boiling water shrinkage of 15-35%, so that the number of knitting yarns with two different shrinkage knitting yarns is 20 to 150 units / m, The above-mentioned polymeric ultrafine fibers are prepared by melt spinning and spinning, in which the length of the hot zone is 0-20 mm, and the distance from the blowing side of the cold air to the silk is controlled to 2-30 mm. 17 92. 7, l 1 1226912 Announcement I. Description of Invention Patent (Please read the application notes carefully before writing this book, please do not write in the mark) ※ Application number: ci ° iz1 έ7 — ※ 工 pc Category: ㈣ ※ Date of application: Ling./Λ 知 ...% 一 、 Name of invention (Chinese) Ultrafine Polyester Fiber-Woven Fabric _ (Central) Ultrafine Polyester Fiber-Woven Or Knitted Fabric 贰, Inventors (total of 3 people), .. .. :: .... &Quot; · ·; ..... · · · · · · · · · · · · · · · · · Inventor (if there is more than one inventor, please explain the inventor's continuation sheet) Name: (Chinese) Sun Guoliang _____ (English) SONYang-Kuk ____ Residence Address: C Chinese) No. 942 M 703, Yamate-dong Lotte Apartment, Gunpo, Gunpo, Gyeonggi-do, Republic of Korea (English) ____ Nationality: (Chinese) South Korea __ (English) Korea__ Participants, applicants (1 person in total) ': V ; Geng invites people (if there is more than one inventor, please read the description of the applicant's continuation page) Name or Name II (Chinese) Hyosung Corporation __ (English) Hyosung Corporat ion___ Address of residence or business office: (Chinese) 450 Kongde-dong, Mapo-gu, Mino-City, South Korea _ ___ (English) Nationality: (Chinese) South Korea ___ (English) Korea Representative: (Chinese) Zhao Zhenglai __ (English) CHO Jung-rae_ Continuation of the inventor or applicant (If the inventor or applicant field is insufficient, please note and use the continuation page)