WO2012134192A2 - Synthetic fiber containing plant fatty acids, and method for manufacturing same - Google Patents

Abstract

The present invention relates to a synthetic fiber containing plant fatty acids and to a method for manufacturing same. The method for manufacturing the synthetic fiber according to the present invention involves enabling polymeric materials for forming a fiber to contain 0.1 to 10.0 wt % of plant fatty acids, and melt-spinning the polymeric materials using a conventional method. The synthetic fiber manufactured by the method of the present invention contains 0.01 to 10.0 wt % plant fatty acids, and emits the scent of a plant. Not only are the basic physical properties, such as strength and elongation, of the synthetic fiber manufactured by the method of the present invention superior to those of general synthetic fibers, but the bulkiness, expansion and contraction, whiteness, touch, hygroscopicity, dyeing properties, gloss properties, etc., thereof are significantly excellent. The synthetic fiber of the present invention exhibits antistatic performance and emits the scent of a plant, and therefore can be widely used as a material for high-quality clothing. [Index words] synthetic fiber, strength, elongation, gloss properties, plant fatty acids, appearance features.

Description

Synthetic fiber containing vegetable fatty acid and its manufacturing method

The present invention relates to a synthetic fiber containing a vegetable fatty acid and a method for producing the same, and more specifically, to a synthetic fiber containing a vegetable fatty acid having excellent physical properties such as strength, elongation and remarkably improved appearance characteristics and antistatic performance and It relates to a manufacturing method.

Synthetic fiber including polyester fiber is widely used as a material for clothing because of its excellent strength, elongation and durability.

  However, the material is hard, there is a sense of rejection when contacting the skin, there is a problem such as badly generated static electricity.

  Many efforts have been made to solve the above problems, and representative examples thereof include a method of fixing plant extracts directly onto synthetic fibers such as Korean Patent No. 10-0726409 and Korean Patent No. 10-0515808. However, the synthetic fiber produced in this way has a problem that the applied plant extract does not continuously exert an effect because it is detached during washing.

  In order to solve this problem, a method of microencapsulating a plant extract and attaching it to the surface of the fiber has also been sought. However, the fiber produced by this method also has a problem in that the microcapsules are easily detached from the environment such as friction, washing, and light exposure.

  Melt spinning may be considered as a method of producing fiber containing plant extracts, but since the temperature of the melt spinning ranges from 200 to 300 ° C., the volatilization, decomposition, and deterioration of the plant extracts are used. There is a problem that the production itself is impossible or the physical properties of the obtained fiber is extremely poor.

  In order to solve this problem, Korean Patent No. 10-0910241 may be cited.

  This technique includes: (a) at least one component selected from plant natural extracts or plant natural essential oils, (b) at least one fiber-forming polymer, and (c) components (a) and (b). The present invention relates to a plant-derived natural extract or a nanofiber containing plant-derived essential oils prepared by electrospinning a spinning solution containing a solvent capable of dissolving the same.

  The principle of electrospinning is that the solution discharged through the nozzle is converted into a jet stream by the electric force formed between the collector and the nozzle, and the solvent is volatilized after the solvent contained in the jet stream reaches the incomplete region to form pure nanofibers. will be.

  By this technology, problems with all the prior arts have been mostly solved. However, the fiber obtained by this technique has a problem in that it cannot be used as a material for clothing because of poor physical properties because the strength cannot be obtained through the molecular orientation of the polymer itself.

  On the other hand, Korean Patent No. 10-0563560 said, "In vegetable protein synthetic fiber composed of vegetable protein and polyvinyl alcohol, the vegetable protein is from 5 parts to 23 parts of the total capacity of the two substances, polyvinyl alcohol is Vegetable protein synthetic fibers, characterized in that the total capacity of 77 parts or more and 95 parts or less.

The protein to be used is obtained by crushing, degreasing and dipping proteins which are separated and extracted by wet grinding beans, peanuts, cotton seeds and the like.

  The fibers obtained by this technique are highly breathable and exhibit properties similar to cashmere. However, the strength and durability of the fiber is extremely poor, which is also inappropriate for clothing fibers.

  On the other hand, as a technique for reducing the generation of static electricity, which is the biggest disadvantage of synthetic fibers, there has been disclosed a technique (including Korea Patent Application No. 10-2006-0138108, etc.) to include conductive carbon black or conductive metal in the synthetic fiber .

However, the conductive fiber obtained by the said technique is too expensive, and it is inappropriate as a fiber for medical materials.

An object of the present invention is to provide a synthetic fiber significantly improved physical properties such as strength, elongation. Another object of the present invention is to provide a synthetic fiber with a significant reduction in the generation of static electricity. It is still another object of the present invention to provide a synthetic fiber having excellent appearance properties and excellent uniformity of yarn. Another object of the present invention is to provide a synthetic fiber having insect repellent. Still another object of the present invention is to provide a synthetic fiber having excellent dyeability and touch. Still another object of the present invention is to provide a synthetic fiber that emits the fragrance of plants.

Synthetic fiber of the present invention is characterized in that it contains 0.01 to 10.0% by weight of vegetable fatty acids. The production method of the present invention is composed of melt spinning by containing 0.1 to 10.0% by weight of vegetable fatty acid in the fiber-forming polymer material.

Hereinafter, the present invention will be described in detail.

  Vegetable fatty acids used in the present invention are linseed oil, sunflower seed oil, rapeseed oil, camellia oil, castor oil, etc., linoleic acid, oleic acid, stearic acid, It is a fatty acid that contains ingredients such as palmitic acid, licanic acid, and ricinol acid.

  For flaxseed oil, its components are listed in Table 1 below.

Table 1 ingredient Content (g / 100g fatty acid) Remarks Myristic acid 0.04021 Pentadecanoic acid 0.02228 Palmitic acid 5.27593 Palmitoleic acid 0.05897 Margaric acid 0.06364 Heptadecenoic acid 0.04187 Stearic acid 3.47834 Oleic acid 18.56481 Linoleic acid 15.39735 Linolenic acid 56.41282 Arachidic acid 0.14637 Gadoleic acid 0.13117 Eicosadienoic acid 0.04389 Eicosadienoic acid 0.02286 Heneicosanoic acid 0.04995 Behenic acid 0.12625 Erucic acid 0.01942 Lionaceric acid 0.10388

  The addition of additives to the synthetic resin usually results in a decrease in physical properties. Since the physical properties of the synthetic fibers of the present invention are further improved than those of the conventional synthetic fibers, the components are considered to be chemically bonded to the fiber-forming polymer material.

  The extraction method of a fatty acid includes the extraction method by a solvent, the extraction method by heat compression, etc. The latter case is more preferable. The extraction method by heat compression is because the low molecular weight volatile substances contained in the plant are naturally removed in the process of heat compression at a temperature of 80 ~ 220 ℃. Low molecular weight volatiles adversely affect the properties of the fibers obtained because they evaporate or thermally deteriorate at relatively low temperatures.

  The method of incorporating the plant fatty acid into the fiber-forming high molecular material includes (i) a method of melt spinning or manufacturing a chip obtained by coating and drying the plant fatty acid on a synthetic chip or manufacturing a master batch chip; A fatty acid is added to prepare a master batch chip, and then mixed with the master batch chip alone or a general synthetic resin chip to melt spinning in a conventional manner; (iii) a method of injecting a plant fatty acid into the melt zone of the extruder during melt spinning; (iv) a method of adding a plant fatty acid in the polymerization step.

  The method of (iii) above is more preferable in order to minimize the thermal degradation of the plant fatty acid added. In the case of (iii), it is necessary to adjust the pressure of the extruder so as not to drop.

  In the method of (i), that is, the method of coating the plant fatty acid on the synthetic resin chip, the drying method is preferably using a rotary hot air dryer or a high frequency dryer. This is because the thermal degradation of plant fatty acids in the drying process can be minimized.

  In order to improve workability in the method of (i), (ii), water and emulsifiers may be added to vegetable fatty acids to emulsify them.

  Appropriate amount of plant fatty acid is 0.1 to 10% by weight, if less than this range is insufficient input effect, if it exceeds this range there is a manufacturing difficulty and adversely affect the physical properties of the obtained fiber.

If necessary, it is natural that additives commonly used such as antioxidants, heat stabilizers, viscosity improvers, and the like may be added in the melt spinning process.

In addition, a drying catalyst may be added to the plant fatty acid in order to improve workability in a mixing process or a coating process, or the bonding speed may be improved by heating the plant fatty acid in air or in the absence of air.

The synthetic fibers of the present invention not only have superior physical properties such as strength and elongation than general synthetic fibers, but also have excellent bulkiness, elasticity, whiteness, feel, hygroscopicity, dyeability, glossiness, surface resistivity of 1.0 × 10. Less than ¹⁴ (Ω) is very good antistatic properties, because it emits the scent of the plant can be widely used as a high-quality medical material.

An embodiment of the present invention is as follows.

(Production Example 1)

  After heating flaxseed 8,500Kg to a grain temperature of 180 ℃ and extracting the oil by heating and pressing in a milking machine and precipitated for 15 days, only 2,000Kg of flaxseed oil was prepared by filtering only the oil except the precipitate.

Example 1

   2% by weight of flaxseed oil prepared in Preparation Example 1 was coated on 98% by weight of polypropylene chip and left at room temperature for 15 days, and then the coating chip was mixed with a general polypropylene chip in a ratio of 1: 2 and a spinning temperature of 230 ° C. 500 g of 150 denier and 28 filament yarns were prepared by melt spinning in a conventional method in a low pilot spinning machine.

As a result of knitting the yarn in the form of a sock, the dyeing, glossiness, and touch were excellent, and the plant-specific odor was emitted.

Example 2

  3Kg of flaxseed oil prepared in Preparation Example 1 was mixed with 97Kg of polyamide crushed chip, and then a masterbatch chip was prepared in a conventional method in a twin screw master batching facility of W & P Co., Germany. The mixture was mixed at a ratio of 1: 3, dried in a conventional manner, and melt-spun at a spinning temperature of 240 ° C. in a pilot spinning machine to produce 150 denier 28 filament yarns.

As a result of knitting the yarn in the form of a sock, the dyeing, glossiness, and touch were excellent, and the plant-specific odor was emitted.

Example 3

  A commercial batch of rapeseed oil 3Kg was mixed with 97Kg of polypropylene crushed chip to prepare a masterbatch chip. The filament yarn of 150 denier 28 filaments was prepared by melt spinning at a spinning temperature of 230 ° C. in a pilot spinning machine using only this chip.

As a result of knitting the yarn in the form of a sock, the dyeing, gloss, and touch were excellent, and antistatic performance was also exhibited.

Example 4

  3 Kg of commercially available castor oil was mixed with 97 Kg of polypropylene crushed chip to prepare a masterbatch chip as in Example 3. The chip and the general polypropylene chip were mixed at a ratio of 1: 1 and melt-spun at a spinning temperature of 230 ° C. in a pilot spinning machine to produce 150 denier 28 filament yarns.

As a result of knitting the yarn in the form of a sock, dyeing, the dyeing, glossiness, and touch were excellent.

Example 5

  3 Kg of commercially available camellia oil was mixed with 97 Kg of polypropylene shredding chips, and then a master batch chip was prepared as in Example 3. The chip and the general polypropylene chip were mixed at a ratio of 1: 2 and melt-spun at a spinning temperature of 230 ° C. in a pilot spinning machine to produce 150 denier 28 filament yarns.

As a result of knitting the yarn in the form of a sock, dyeing, the dyeing, glossiness, and touch were excellent.

Example 6

5% by weight of flaxseed oil obtained in Preparation Example 1 was added just before the ES reaction in a polymerization test facility, and had a Mole ratio of 1.12, Sb ₂ O ₃ (250 ppm), TiO ₂ (3,000 ppm), and H ₃ PO ₄ ( 200 ppm), the final reaction temperature of 255 ℃, the reaction time was carried out under the condition of 210 minutes. Subsequently, a PC reaction was performed under conditions of a final temperature of 287 ° C., a reaction time of 220 minutes, and a vacuum of 0.4 torr to prepare 70 g of a polyester polymer chip.

  The Mole ratio means {(EG dose / EG molecular weight 62.07) / (TPA dose / TPA molecular weight 166.13)}.

  70 g of the obtained polymerized chip and 300 g of polyester semidal chip were mixed, dried at a temperature of 180 ° C. for 3 hours, and melt spun at a spinning temperature of 285 ° C. in a pilot spinning machine to produce 150 denier 28 filament yarns.

  As a result of knitting the yarn in the form of a sock and dyeing, the dyeing, glossiness, and touch were excellent.

Example 7

  Flaxseed was crushed and placed in a PP nonwoven bag of 2Kg each. Then, 6Kg (3 bags) of flaxseed and 36Kg of water were put in a pressure shaker, boiled at 130 ° C for 3 hours, and pressurized in a hydraulic press to obtain 25Kg of a mixture of water and plant fatty acids. This was filtered and concentrated to prepare a concentrated solution of 8Kg.

  3 Kg of the obtained concentrate and 97 Kg of polyester crushing chips were mixed, and the master batch chip was manufactured by the conventional method.

  The master batch chip and the general polyester semi-dal chip were mixed at a ratio of 1: 1, and dried, followed by melt spinning at a spinning temperature of 285 ° C. in a pilot spinning machine to produce 150 denier 28 filament yarns.

  As a result of knitting the yarn in the form of a sock, dyeing, the dyeing, glossiness, and touch were excellent.

Example 8

  In order to contain 0.8% by weight of flaxseed oil prepared in Preparation Example 1 in 99.2% by weight of polyester semidal chips, a separate feeder (hunger pump) was used at the connection portion between the main chip supply pipeline and the extruder. While continuously spun and melt spinning at a temperature of 285 ± 5 ° C., 5,300 Kg of 1.4 denier 38 mm staple fibers were prepared.

  The prepared staple fiber was spun at 40S / 1 and then used to knit a single jersey. The obtained knitted fabric was dyed by a conventional method. The physical properties of the obtained staple fibers were as shown in Table 2 below, and the results of the harmful component detection test (eco full test infant standard) were as shown in Table 3 below. The characteristics of staple fibers and dyed knitted fabrics are shown in Table 4 below. The properties of the knitted fabric (elasticity, touch, gloss, etc.) remained the same after five washes.

As a result of testing the antistatic property on the obtained dyed knitted fabric, the triboelectric chargeability (KS K 0555: 2010) was 67 (V) (cotton), 99 (V) (foam), and {Test condition: (20 ± 2 ) ℃, (40 ± 2)% RH, 400 r / min}, surface resistivity (KS K 0170: 2008) is 1.4 × 10 ¹² (Ω) {Test condition: (20 ± 2) ℃, (40 ± 2) % RH}, {application voltage: 100V, 60 seconds} was very good. The surface resistivity of general synthetic fiber is 1.0 × 10 ^{14 ~ 15} (Ω).

TABLE 2 ITEM Standard values Example 8 TEST METHOD Denier 1.4 ± 0.05 1.39 ASTM D 1577.DIN53912 Fiber length (mm) 38 ± 1.5 38.2 KSK 0327 (KOREA) Tenacity (g / de) 5.5 5.76 ATTM D 3822 Elongation (%) 30.0 ± 5.0 35 ATTM D 3822 Number of crimp (Number / inch) 13.5 ± 1.0 13.2 JIS L 1074 (JAPEN)

TABLE 3 Test Items result standard pH 6.2 4.0 ~ 7.5 (standard) Formaldehyde content pass Not detected Heavy metal (elution) content pass Not detected Heavy metal (acid decomposition) content pass Not detected Pesticide Content pass Not detected Chlorinated Phenol Content pass Not detected PVC plasticizer (PHTHALSTES) pass Not detected Organotin Compound Content pass Not detected Other Compound Content (OPP) pass Not detected Other Compound Content (PFOS) pass Not detected Other Compound Content (PFOA) pass Not detected Arylamine dye content pass Not detected Carcinogenic Dye Content pass Not detected Allergic Acetate Content pass Not detected Other regulated dye content pass Not detected Organic Chlorine Carrier Content pass Not detected Flame Retardant Content (PBB / TRIS / TEPA / PENTABDEOCTABDE / DECABDE / HBCDD) pass Not detected stink pass Not detected

Table 4 division polyester Example 8 Remarks burglar Great Great Yarn Status Shinto Great Very good Yarn Status Bulky castle Great Very good Yarn and Fabric elasticity Great Very good Fabric condition after dyeing process soft usually Very good Yarn and Fabric Whiteness Great Great Yarn Status Tactile usually Very good Fabric condition (on skin contact) Hygroscopic Poor Good Fabric condition after dyeing process Dyeing Great Very good Fabric condition after dyeing process incense none has exist Fabric condition after dyeing process Antistatic Bad Very good Fabric condition after dyeing process Luster usually Great Fabric condition after dyeing process

  The single jersey knitting fabric knitted with polyester 40s / 1 spun yarn was dyed, dehydrated and dried. Subsequently, 5% by weight flaxseed oil obtained in Preparation Example 1 was mixed with water (95% by weight) to which a softening agent was added, the knitting fabric was immersed therein, passed through a mangle, and a sample was obtained through a tenter process.

  The sample before washing improved the glossiness and the touch, but after washing 5 times, the gloss and the touch decreased significantly.

Claims (11)

  A method for producing synthetic fibers containing plant fatty acids containing 0.1 to 10.0% by weight of plant fatty acids in a fiber-forming polymer material and melt-spun in a conventional manner.    The method according to claim 1, wherein the method of incorporating the plant fatty acid into the fiber-forming polymer material comprises coating the plant fatty acid onto the fiber-forming polymer material prior to melt spinning.    The method according to claim 1, wherein the method of incorporating the plant fatty acid into the fiber-forming polymer material is made of a master batch chip by mixing the plant fatty acid with the fiber-forming polymer material.     The method for producing synthetic fibers containing plant fatty acid according to claim 1, wherein the method of containing the plant fatty acid in the fiber-forming polymer material is added at the polymerization step of the fiber-forming polymer material.     The method according to claim 1, wherein the method of incorporating the plant fatty acid into the fiber-forming polymer material produces the synthetic fiber containing the plant fatty acid, wherein the plant fatty acid is continuously added to the extruder during melt spinning using a separate feeder. Way.    The method of producing a synthetic fiber containing plant fatty acid according to any one of claims 1 to 5, wherein the fiber-forming polymer material is a polymer material capable of melt spinning.    6. The plant fatty acid of claim 1, wherein the plant fatty acid is linoleic acid, oleic acid, stearic acid, palmitic acid, rica. Method for producing a synthetic fiber containing plant fatty acid, characterized in that it comprises at least one component selected from nitric acid (Licanic acid), richin acid (Ricinol acid).     A synthetic fiber prepared according to any one of claims 1 to 5, containing vegetable fatty acids containing 0.01 to 10.0% by weight of vegetable fatty acids. The synthetic fiber containing plant fatty acid according to claim 8, wherein the surface resistivity is 1.0 × 10 ¹⁴ (kPa) or less. 10. The synthetic fiber containing plant fatty acid according to claim 9, wherein the surface resistivity is 1.0 × 10 ¹³ (kPa) or less. The synthetic fiber containing plant fatty acid according to claim 8, which emits the fragrance of the plant.