WO2004020708A1 - ポリ乳酸繊維、ヤーンパッケージおよび繊維製品 - Google Patents
ポリ乳酸繊維、ヤーンパッケージおよび繊維製品 Download PDFInfo
- Publication number
- WO2004020708A1 WO2004020708A1 PCT/JP2003/011135 JP0311135W WO2004020708A1 WO 2004020708 A1 WO2004020708 A1 WO 2004020708A1 JP 0311135 W JP0311135 W JP 0311135W WO 2004020708 A1 WO2004020708 A1 WO 2004020708A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polylactic acid
- fiber
- yarn
- fabric
- acid fiber
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
- D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23993—Composition of pile or adhesive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
- Y10T428/2907—Staple length fiber with coating or impregnation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
- Y10T428/2909—Nonlinear [e.g., crimped, coiled, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
Definitions
- the present invention relates to a polylactic acid fiber using polylactic acid as a biodegradable polymer.
- polylactic acid fibers have the disadvantage that they have a high surface friction coefficient and poor abrasion resistance.
- the rub fastness according to JIS L0849 is generally required to be at least level 3 for clothing use, but the level of conventional polylactic acid fiber was as low as level 1.
- the high surface friction coefficient of the polylactic acid fiber has caused problems in the thread-forming step, the yarn processing step, the cutting step of the fabric, and the sewing step.
- the cloth cutting step a plurality of cloths are usually cut and laminated industrially.
- a large amount of cloth is generated between the cutter and the fibers. The shear heat causes fusion of the pieces of the fabric.
- the high coefficient of friction of the polylactic acid fiber which causes these problems, is due to the polymer matrix, and it is considered that these problems occur inevitably in the polylactic acid fibers.
- chips ⁇ lubricant is added to the polymer in order to improve the anti-locking property of the molten polymer or the releasability of the molded body from molds and rollers. May be added.
- the product quality such as unevenness of the physical properties of the fiber and staining spots due to blending unevenness of the lubricant, thermal decomposition, bleed-out, etc. There was a tendency to be avoided.
- fibers with a lubricant added are disclosed in, for example,
- fatty acid monoamide reacts with polylactic acid
- the molecular chain of polylactic acid is consequently cut, so that the molecular weight is reduced and the fiber properties are sometimes reduced.
- fatty acid monoamides have high sublimability or poor heat resistance, so that fuming may worsen the working environment, bleeding may cause contamination of guides and rollers, and may also reduce operability.
- the prepread-out fatty acid monoamides sometimes aggregated on the fiber surface, resulting in unevenness in physical properties and staining of the fiber.
- an object of the present invention is to provide a polylactic acid fiber having excellent abrasion resistance and process passability.
- the present invention has the following configurations.
- Polylactic acid fiber containing 0.1 to 5% by weight of fatty acid bisamide and Z- or alkyl-substituted fatty acid monoamide based on the whole fiber.
- polyester is a compound obtained by copolymerizing and adding an alkylene oxide having 2 to 4 carbon atoms to an alcohol having one or more hydroxyl groups in the molecule, or a derivative thereof.
- Polylactic acid fiber as described.
- a textile product comprising at least a part of the polylactic acid fiber according to (1) to (23).
- FIG. 1 is a view showing a surface state of a polylactic acid fiber of the present invention after a friction fastness test.
- FIG. 2 is a view showing a surface state of a conventional polylactic acid fiber after a wear fastness test.
- FIG. 3 is a diagram for explaining the cross-sectional irregularity of the polylactic acid fiber of the present invention.
- FIG. 4 is a schematic view showing a spinning apparatus preferably used for producing the polylactic acid fiber of the present invention.
- FIG. 5 is a schematic view showing a drawing apparatus preferably used for producing the polylactic acid fiber of the present invention.
- FIG. 6 is a schematic view showing a spinning direct drawing apparatus preferably used for producing the polylactic acid fiber of the present invention.
- FIG. 7 is a schematic view showing a draw false twist apparatus preferably used for producing the polylactic acid fiber of the present invention.
- the fiber of the present invention is a polylactic acid fiber mainly composed of polylactic acid.
- the polylactic acid referred to in the present invention refers to a polymerized lactic acid oligomer such as lactic acid or ratatide, and has one (0-CHCH 3 —CO) n — as a repeating unit.
- Lactic acid has two optical isomers, D-form and L-form. Regardless of L-form or D-form, the higher the optical purity, the higher the melting point and the better the heat resistance. Good. Specifically, the optical purity is preferably 90% or more.
- PC leakage 00 orchid 135 Separately from the system in which the two types of optical isomers are simply mixed as described above, after blending the two types of optical isomers into a fiber, It is more preferable to form a stereo complex in which a racemic crystal is formed by performing a high-temperature heat treatment at a temperature of not less than ° C because the melting point can be dramatically increased.
- polylactic acid fiber of the present invention When the polylactic acid fiber of the present invention is used as a binder (heat bonding fiber), it is also preferable to employ polylactic acid having a low optical purity to obtain a polylactic acid fiber having a relatively low melting point.
- the polylactic acid constituting the fiber preferably has a carboxyl terminal concentration of 40 eq / t or less.
- the carboxyl terminal concentration of polylactic acid is more preferably 30 eq / t or less, and further preferably 10 eq / t or less.
- Examples of the method of lowering the carboxyl terminal concentration include a method of extracting a low molecular weight substance such as lactide in a polycarboxylic acid resin in advance, and a method of adding a terminal blocking agent to block a carboxyl terminal group during spinning. it can.
- the molecular weight of polylactic acid is preferably 50,000 to 500,000 in terms of weight average molecular weight. By setting it to 50,000 or more, it is possible to obtain mechanical properties that can be put to practical use, and by setting it to 500,000 or less, it is possible to obtain good spinnability.
- a direct dehydration condensation method disclosed in Japanese Patent Application Laid-Open No. 6-635360, in which lactic acid is directly dehydrated and condensed in the presence of an organic solvent and a catalyst is disclosed in No. 1,733,311, a method for copolymerizing and transesterifying at least two kinds of homopolymers in the presence of a polymerization catalyst, which is disclosed in U.S. Pat.
- An indirect polymerization method and the like disclosed in the specification of Japanese Patent No. 6-132, in which lactic acid is once dehydrated to form a cyclic dimer and then subjected to ring-opening polymerization, can be employed.
- the raw material polylactic acid itself also has a good color tone.
- the b * value is preferably 15 to 5.
- Specific methods for achieving such a color tone include, for example, use of a metal deactivator, an antioxidant, etc. It is preferable to lower the temperature and suppress the catalyst addition rate. Also, reducing residual oligomers and monomers such as lactide is effective in preventing thermal deterioration and improving color tone. Residual oligomer 'monomer can be significantly reduced by subjecting the polymer to depressurization treatment or extraction treatment with a black form.
- the amount of residual oligomer monomer is 0 to 0.2 weight based on polylactic acid. / 0 is preferred, more preferably 0.1 weight. / 0 or less, more preferably 0.05% by weight or less.
- components other than lactic acid may be copolymerized, a polymer other than polylactic acid may be blended, or used for composite spinning as long as the properties of polylactic acid are not impaired.
- the polymer other than polylactic acid include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, nylon, polybutylene succinate, polyhydroxybutylate and the like.
- polybutylene succinate-polyhydroxybutyrate which is biodegradable and derived from pyomas like polylactic acid, is preferred as a polymer other than polylactic acid.
- the blending method may be a chip blend or a melt blend.
- As the form of the composite spinning a core-sheath type, a side-by-side type, or the like can be adopted.
- the content of lactic acid monomer per polymer is preferably 50% by weight or more, more preferably 75% by weight or more, and even more preferably 96% by weight. / 0 or more.
- the polylactic acid fiber of the present invention contains a fatty acid bisamide and / or an alkyl-substituted fatty acid monoamide. By doing so, the surface friction coefficient of the polylactic acid fiber can be reduced.
- “and / or” may include only one of a fatty acid bisamide and an alkyl-substituted fatty acid monoamide, or may include both a fatty acid bisamide and an alkyl-substituted fatty acid monoamide. May be contained.
- fatty acid bisamides and alkyl-substituted fatty acid monoamides are collectively referred to as “specific fatty acid amides”.
- the fatty acid monoamide conventionally known as a lubricant for the polylactic acid fiber has lost its function as a lubricant in the polylactic acid fiber as described above, but the “specific fatty acid amide” used in the present invention. Is less anti-amide than normal fatty acid monoamides. It has low responsiveness and hardly reacts with polylactic acid during melt molding, that is, it can maintain its function as a lubricant. In addition, because of high molecular weight, they generally have good heat resistance and are not easily sublimated. In particular, fatty acid bisamides have even lower reactivity with polylactic acid, and because of their high molecular weight, can further suppress the readout in the molten polymer. By suppressing bleed-out, it is possible to suppress physical spots and stain spots.
- the fatty acid bisamide as referred to in the present invention refers to a fatty acid amide having two amide bonds in one molecule, for example, methylene biscaprylic amide, methylenebiscaprionic amide, methylenebislaurin Acid amide, methylenebismyristate amide, methylenebispalmitate amide, methylenebisstearate amide, methylenebisisostearate amide, methylenebisbenenate amide, methylenebisoleate amide, Methylene bis erucic acid amide, ethylene bis caprylic acid amide, ethylene bis capric acid amide ', ethylene bis lauric acid amide, ethylene bis bis bis myristic acid amide, ethylene bis palmitic acid amide Mid, ethylenebisstearic acid amide, ethylenebisisostearic acid amide, ethyl Amide, ethylenebisoleic acid amide, ethylenebisenolecaic acid amide, butylene bistearic
- alkyl-substituted fatty acid monoamide refers to a compound having a structure in which an amide hydrogen of a fatty acid monoamide is replaced with an alkyl group. Examples thereof include N-radinolunterric acid amide and N-palmityl palmitin. Acid amide, N-stearyl oleate stearate amide, N-behenylbehenate amide, N-oleoleoleate amide, N-stearyl oleate amide, N-oleyl stearate amide, N — Stearyl erlic acid amide, N-oleyl palmitic acid amide and the like.
- the alkyl group may have a substituent such as a hydroxyl group introduced into its structure.
- a substituent such as a hydroxyl group introduced into its structure.
- methylol stearic acid amide, methylol benamic acid amide, N-stearyl amide —Hydroxiestearic acid amide, N-oleyl 12 hydroxyamide amide, and the like are also included in the alkyl-substituted fatty acid monoamide referred to in the present invention.
- the “specific fatty acid amide” preferably has a melting point of 80 ° C. or more.
- the “melting point” is the crystal melting peak temperature when the temperature is increased at 16 C / min in DSC (differential scanning calorimetry).
- the melting point is more preferably at least 100 ° C, even more preferably at least 140 ° C.
- the melting point is preferably 200 ° C. or less from the viewpoints of compatibility with polylactic acid and moldability.
- the content of the “specific fatty acid amide” is 0.1 to 5% by weight based on the whole fiber. 0.1 weight. By setting the ratio to / 0 or more, the effect of reducing the surface friction coefficient of the polylactic acid fiber can be obtained. Also 5 weight. /. By performing the following, the “specific fatty acid amide” can be finely dispersed, and the occurrence of unevenness in physical properties and staining of the fiber can be prevented.
- the content of the “specific fatty acid amide” is preferably 0.5-3 '% by weight.
- the “specific fatty acid amide” may be used alone or in combination of two or more types. When a plurality of types are used in combination, the total of the “specific fatty acid amides” is fiber. What is necessary is just to contain 0.1-5 weight% with respect to the whole.
- Examples of the method for containing the “specific fatty acid amide” in the polylactic acid fiber include a method of adding polylactic acid during polymerization, a method of producing a kneaded chip using a kneader, Examples include a method of attaching to the surface of the polylactic acid resin chip, and a method of adding in the melt spinning step.
- a chip is prepared by kneading polylactic acid and a specific fatty acid amide in accordance with the desired amount of the specific fatty acid amide added to the polylactic acid fiber.
- the kneading chip may be adjusted to a desired content when supplied to a spinning machine.
- a method of blending with polylactic acid chips for dilution is also suitable.
- a method of measuring and adding the lubricant melted in the middle of the kneading machine is also preferable because the thermal decomposition of the lubricant can be suppressed and the coloring can be further reduced.
- a “specific fatty acid amide” is finely dispersed in polylactic acid by installing a static kneader in a spinning pack.
- a static kneader for example, polylactic acid and "a specific fatty acid amide" are once kneaded with a kneader, and roughly finely kneaded with a static kneader in a spinning pack.
- the polylactic acid and the “specific fatty acid amide” may be separately melted, each melt may be guided to a spinning machine, and finely dispersed and kneaded by a static kneader in a spinning pack.
- the amount of “specific fatty acid amide” added to the fiber is 0.1 to 5 weight per the above content. It should be / 0 . 0.1 weight. The value of / 0 or more is for the same reason as described above. Also 5 weight.
- Preventing bleed-out prevents the fatty acid amide from sublimating or decomposing, causing fuming and deteriorating the work environment, or extruding kneaders and melt-spinning machines to reduce operability. be able to.
- preventing bleed-out stabilizes the ejection of polymer from the spinneret, and also reduces yarn spots.
- the content is 5% by weight or less, aggregation of the fatty acid amide in the molten polymer can be suppressed, thermal deterioration of the fatty acid amide and reaction with polylactic acid can be suppressed, and yellowness can be suppressed.
- the amount (prepared amount) of the “specific fatty acid amide” is preferably 0.5 to 3% by weight.
- the components constituting the polylactic acid fiber of the present invention include polymers and particles other than polylactic acid, It may contain additives such as a flame retardant, an antistatic agent, an anti-glare agent, a deodorant, an antibacterial agent, an antioxidant and a coloring pigment.
- the molten polymer is measured to a predetermined amount via a metering pump and then guided to a spinning pack installed in a heated spin block. I will be.
- the spinning temperature at this time varies depending on the copolymerization ratio and molecular weight of the polylactic acid to be used, but is preferably 180 to 240 ° C. By setting the temperature to 180 ° C. or higher, easy melt extrusion can be performed, and by setting the temperature to 240 ° C. or lower, the coloring of “specific“ fatty acid amide ”due to thermal decomposition can be suppressed.
- the spinning temperature is more preferably from 185 to 230 ° C, even more preferably from 190 to 220 ° C.
- the molten polymer is filtered to remove foreign substances and spun out from the spinneret.
- the residence time is preferably within 30 minutes, more preferably within 20 minutes, further preferably within 15 minutes, and further preferably within 10 minutes.
- a suction device should be installed below the spinneret. preferable.
- a multi-lobal cross section such as a round cross section, a hollow cross section, a trilobal cross section, and other irregular cross sections Can also be freely selected.
- the cross-sectional shape may be a round cross section, but it is multi-lobed, cross-shaped, cross-shaped, W-shaped, S-shaped, or X-shaped. It is preferable to have an irregular cross section such as a letter shape. Among them, the multi-leafed form having 3 to 8 leaves is particularly preferable from the viewpoint of abrasion resistance. It is also preferable to use a hollow fiber having at least one hollow portion in the fiber cross section.
- the cross-section irregularity is 1.1 to 8.
- the cross-sectional irregularity By setting the cross-sectional irregularity to 1.1 or more, it is possible to impart good glossiness, softness, and high bulkiness to a polylactic acid fiber crimped by fluid crimping. Further, by setting the ratio to 8 or less, abrasion and vipril formation can be suppressed, and the processability in the weaving process and the tufting process is improved. More preferably, the cross-sectional irregularity is 1.5 to 6.
- the cross-sectional shape can be freely selected for a multi-lobal cross section such as a round cross section, a hollow cross section or a trilobal cross section, and other irregular cross sections. It is possible. In particular, in applications where emphasis is placed on lightness, softness, and heat retention, such as insulated cotton, hollow sections are preferred.
- the hollow ratio is preferably 15 to 45%. By setting the hollow ratio to 15% or more, lightness, softness, and heat retention are provided. On the other hand, the hollow ratio is 45. /. By keeping the content below, high rigidity can be maintained and the collapse of the hollow portion in the manufacturing process of the textile product can be suppressed.
- the hollow ratio here is obtained from the area A of the fiber cross section including the hollow part and the area a of the hollow part by the following formula.
- the spun polymer is cooled and solidified into a fiber by, for example, a cooling device using cooling air, and the polylactic acid fiber group is bundled in an oil agent supply device, and is simultaneously supplied with a spinning oil agent.
- the polylactic acid fiber of the present invention is preferably provided with a spinning oil agent containing a leveling agent, that is, preferably has a leveling agent on the fiber surface. It is preferable that the component of the leveling agent is appropriately selected depending on the use.
- the polylactic acid fiber does not have crimping due to crimping, that is, when it is a so-called flat yarn, when it has crimping due to fluid crimping, or when it is stable, it is a fatty acid ester or polyvalent.
- a smoothing agent hereinafter, also referred to as a “non-twisting flat-lubricating agent” selected from alcohol esters, ether esters, silicones, and mineral oils on the fiber surface.
- Fatty acid esters and mineral oils are particularly preferred for the aforementioned applications.
- Fatty acid esters include, for example, monovalent anoreconole and monovalent phenol such as methylolate, isopropyl myristate, octinole palmitate, oleinorelaurate, oleinoleoleate, and isotridesinorestearate.
- Monohydric oleolecol and polyhydric phenolic esters such as estenole, dioctyl sebacate, and dioleyl adipate, ethylene glycolone regiolate, 1, methylolone propiolate recaprylate And esters of polyhydric alcohols and monovalent carboxylic acids such as glycerol triolate, and alkylene oxide addition esters such as lauryl (EO) octanoate.
- the above-mentioned leveling agents may be used as a single component, or may be used as a mixture of a plurality of components.
- a smoothing agent containing polyether as a main component (hereinafter, also referred to as a “smoothing agent for false twisting”) should be provided on the fiber surface.
- a smoothing agent for false twisting By adding a polyether-based smoothing agent to the polylactic acid fiber, the coefficient of friction between the fiber and metal can be increased, that is, the coefficient of friction between the fiber and the twisted body can be increased. Crimp by twisting can be stably applied.
- the coefficient of friction between fibers can be reduced, migration properties on a false twist heater can be improved, untwisting can be suppressed, and the quality of a fiber product can be improved.
- polyether examples include a compound obtained by copolymerizing an alcohol having one or more hydroxyl groups in a molecule with an alkylene oxide having 2 to 4 carbon atoms, and a compound derived therefrom.
- any monohydric alcohol having a carbon number of 1 to 30 (methanonole, ethanonole, isoprononole, ptanonole, isoaminonoreal cornore, 2-ethylhexanonole, lauri noreanole konore, Isotridecylanolecole, diisocetylanolecole, stearinoleanolecole, diisostearineolenolecole, etc., divalent alcohole (ethylene glycol, propylene glycol, neopentinole glycole, hexylene glycole, etc.) and Trihydric or higher alcohols (glycerin, trimethylonolepropane, pentaerythritonolone, sonolebitan, Sorbitol, etc.).
- alkylene oxide having 2 to 4 carbon atoms examples include ethylene oxide (hereinafter abbreviated as EO), 1,2-propylene oxide (hereinafter abbreviated as PO), 1,2-butylene oxide (hereinafter abbreviated as BO). Abbreviations), tetrahydrofuran (hereinafter abbreviated as THF) and the like.
- EO ethylene oxide
- PO 1,2-propylene oxide
- BO 1,2-butylene oxide
- THF tetrahydrofuran
- the ratio of EO is determined based on the viscosity when using an aqueous solution or an aqueous emulsion as a smoothing agent, and the balance of heat resistance on the heater in the stretching friction false twisting process. Is preferably 5 to 80% by weight.
- the addition mode may be random addition or block addition.
- Examples of the compound derived from the copolymerized addition compound of an alkylene oxide include a compound in which a terminal hydroxy group is alkoxylated and Z- or acylated with an alkyl group having 1 to 12 carbon atoms, or a compound having 2 to 2 carbon atoms.
- Examples thereof include a compound esterified with the dicarboxylic acid of 12 and a compound urethanized with an aliphatic or aromatic diisocyanate compound.
- the weight-average molecular weight of the polyether-based smoothing agent is 500-500 considering the viscosity of an aqueous solution or an aqueous emulsion and the balance of heat resistance on a heater in the stretching friction false twisting step and the like. It is preferably 300,000, more preferably 800 to 2000, still more preferably 1200 to: L500.
- the leveling agent may be used as a mixture with any component so long as its performance is not impaired.
- a mixture of a leveling agent and optional components is also called an "oil agent".
- Optional ingredients include emulsifiers that emulsify oils in water to reduce viscosity and improve adhesion to yarn and permeability, antistatic agents, ionic surfactants, sizing agents, antiseptics, preservatives And an antioxidant.
- the content for oil purity non false twisting smoothing agent preferably Ru 3 0-9 5 wt% and I ". 3 0 wt.
- the surface friction coefficient of the fibers Dramatically reduced, improving the processability and quality of fiber and textile products, and reducing the content to 95% by weight or less improves the dispersibility of the oil agent in water and reduces the adhesion of oil agent to fibers.
- the content is more preferably 55 to 75% by weight / 0
- the content of the smoothing agent for false twisting with respect to the pure oil content is 40% by weight.
- the oil agent is preferably an aqueous solution or an aqueous emulsion for both those containing a non-twisting smoothing agent and those containing a false twisting smoothing agent.
- concentration of the oil agent in the aqueous solution or aqueous emulsion is preferably 0.5 to 20% by weight from the viewpoints of adhesion efficiency to fibers, fluidity or viscosity of the aqueous solution and aqueous emulsion, and film forming performance. Preferably it is 5 to 18% by weight.
- metered lubrication via a nozzle, roller lubrication, a combination thereof, or the like can be employed.
- metering lubrication using a nozzle can be particularly adopted.
- the amount of the oil solution pure applied to the entire polylactic acid fiber is 0.1 to 3.0 weight in both the case where the non-texturing smoothing agent is used and the case where the false twisting smoothing agent is used. . / 0 is preferable.
- the content is 0.1% by weight or more, it is possible to sufficiently exhibit performance as an oil agent such as convergence and smoothness.
- By setting the content to 3.0% by weight or less it is possible to prevent the contamination of the equipment due to the drop of the oil component during the process and the deterioration of the process passability due to the drop, thereby enabling stable production.
- the friction between fibers can be sufficiently reduced to improve migration, the friction between fibers and metal can be increased to improve twisting properties, and yarn breakage on the heater can be prevented.
- the polylactic acid fiber bundled and supplied by the oil agent supply device When the polylactic acid fiber bundled and supplied by the oil agent supply device is wound up as a filament, it is wound, for example, by a spinning device shown in FIG. 4 or a direct spinning device shown in FIG. In the case of the spinning device shown in FIG. 4, it is wound by the winding device via the first unheated take-up roller 11 and the second take-up roller 12.
- the peripheral speed (hereinafter, also referred to as “spinning speed”) of the first take-off roller 11 is preferably set to 250 to 700 OmZ.
- spinning speed is more preferably 4000 to 7000 m / min.
- the polylactic acid fibers are oriented and crystallized to develop the internal structure of the fibers, which improves heat resistance, prevents softening of the yarn on the heater, and reduces the yarn on the heater.
- Driving is stable and process stability is improved.
- dimensional stability and crimping properties are improved by drawing or false twisting highly oriented and crystallized polylactic acid fiber at high temperature, and heat resistance as a drawn yarn or false twisted yarn is also improved. I do.
- the heat resistance can be evaluated as “90 ° C. strength”.
- polyethylene terephthalate which is widely used as a synthetic fiber
- the mechanical properties tensile strength, etc.
- the mechanical properties are improved by drawing the reinforced fibers. It is not clear why stretching the oriented crystallized fiber improves the heat resistance as expressed by 90 DC strength, but it is likely that the polylactic acid has a weak intermolecular interaction and is heated.
- stress is applied in the fiber axis direction, molecular chains are pulled out of the crystal and partially recrystallized, and the amorphous layer connecting the crystals plays the role of a highly constrained tie molecule. It is considered that elongation deformation was suppressed.
- the spinning speed is more preferably from 425 Om / min to 700,000 m / min, and still more preferably from 4,500 m / min to 650 OmZ.
- the speed of the first take-up roller (VI) and the speed of the second take-up roller (V2) are 0.99 ⁇ V2 / V It is preferable that 1 ⁇ 1.05.
- the winding tension between the last godet opening and the winding machine is to prevent reverse winding.
- the more preferable winding tension is from 0.05 to 0.12 cN / dtex, more preferably from 0.06 to 0.1 lcN / dtex.
- the load (corresponding to the pressure on the package; hereinafter referred to as surface pressure) for the wire length where the roller bail or the drive roll is in contact with the package shall be in the range of 6 to 16 kg / m. Is preferred.
- the surface pressure By setting the surface pressure to 6 kg / m or more, it is possible to give the package an appropriate hardness and suppress the package collapse and saddle. Also, by setting the surface pressure to 16 kgZm or less, it is possible to suppress the collapse of the package and the bulge. A more preferred range is from 8 to 12 kg / m.
- the angle is more preferably 5.5 to 8 °, and even more preferably 5.8 to 7 °. Further, it is preferable to change the twill angle to suppress the ribbon.
- a method of rapidly changing the twill angle in the ribbon generation zone region is also preferably used, and a combination of these methods may be used.
- aliphatic polyesters have low bending stiffness and strong behavior as an elastic body. Therefore, it is preferable to devise a method of sufficiently following the yarn when folded during traverse.
- a one-axis to three-axis blade traverse method having high high-speed followability, a micro cam traverse having a good thread gripping property, and a spindle traverse capable of shortening the free length are preferably used.
- the micro cam traverse method is used for the winding speed of 200 to 400 mZ, and the one to three axis blades for the winding speed exceeding 400 OmZ. It is more preferable to use the traverse method.
- the driving method during winding is generally driven by a drive roller, but a spindle drive method or a method in which the roller bail of the winding machine is forcibly driven is preferable. It is used well.
- the roller bail speed is always controlled so that it overfeeds 0.05 to 1% of the surface speed of the package when the roller bail is forcibly driven. can do.
- the multi-builtment made of polylactic acid fiber can be given a convergence property.
- a confounding device for imparting confounding for the purpose of improving the unwinding property of cheese may be provided.
- the fluid used for the entanglement device include an air flow and a water flow, and the air flow is preferable because it can impart sufficient bunching and unwinding properties to the yarn running at high speed.
- the drawing temperature (the first hot roller 16 in FIG. 4 and the first hot roller 21 in FIG. 6).
- the surface temperature is preferably from 80 to 150 ° C., since the occurrence of thread spots can be suppressed.
- the heat setting temperature (the second hot roller 17 in FIG. 4 and the second hot roller 22 in FIG. 6) is 120 to 160 ° C., the boiling water shrinkage of the polylactic acid fiber is And the thermal dimensional stability is improved.
- multi-stage stretching may be performed.
- the form of the polylactic acid fiber of the present invention may be filament or staple, and in the case of filament, it may be multifilament or monofilament.
- the total fineness of the multifilament is 20 to 500 dtex, and the single yarn fineness is 0.1 to: L0 dtex. Is preferred.
- the poor wear resistance of polylactic acid fibers is more pronounced as the single-fiber fineness is smaller.
- the polylactic acid fibers of the present invention have sufficient wear resistance even if the single-fiber fineness is small.
- the polylactic acid fiber of the present invention preferably has a strength of 2.0 cdte X or more in order to maintain a high passability and a high mechanical strength of the fiber product.
- the polylactic acid fiber of the present invention has an elongation of 15 to 70%, which indicates that It is preferable in improving the value.
- the polylactic acid fiber of the present invention preferably has a boiling water shrinkage of 0 to 20% from the viewpoint of improving the dimensional stability of the fiber and the fiber product.
- the boiling water shrinkage is more preferably from 1 to 15%, and even more preferably from 2 to 10%.
- the boiling water shrinkage is preferably 15% or less because the dimensional stability of the false twist yarn and the fiber product is good.
- the boiling water shrinkage of the false twisted yarn is more preferably 10% or less, and further preferably 8% or less. .
- the boiling water shrinkage is preferably set to 0 to 5% in order to perform uniform dyeing on the inner and outer layers of the cheese and to prevent package collapse due to shrinkage.
- U% Normal a 1 T est
- U% is more preferably 1.0% or less.
- the polylactic acid fiber of the present invention preferably has a fiber b * value of ⁇ 1 to 5 in the L * a * b * color system.
- b * value which is an index of yellow color tone
- the value of b * is more preferably 3 or less.
- the polylactic acid fiber containing a fatty acid monoamide, which is a conventional technology, may have a high straightness and a strong yellowish color in some cases.
- the “specific fatty acid amide” used in the present invention has excellent heat resistance and low reactivity of the amide group, so that the yellowish coloration of the fiber hardly occurs. .
- polylactic acid fiber of the present invention may be crimped to the polylactic acid fiber by false twisting, fluid crimping, pressing, mechanical crimping, or the like, depending on the application.
- the multi-virument of the polylactic acid fiber of the present invention exhibits excellent bulkiness and dimensional stability when subjected to false twisting.
- polylactic acid fibers of the present invention can be subjected to false twisting with good processability. This is because, as described above, the polylactic acid fiber of the present invention has improved abrasion resistance due to a low friction coefficient, and thus can withstand the friction caused by twisting.
- a drawing false twisting apparatus shown in FIG. 7 can be used.
- the polylactic acid multifilament supplied to the drawing false twisting device is sent to a feed roller 26 via a desired yarn guides 25 a to 25 c and a fluid treatment device. After that, it is guided to a drawing roller 31 through a heated false twist heater 27, a cooling plate 29, and a twisted body 30 for performing stretch friction false twist, and is wound as a false twisted yarn.
- the false twisting process may be performed after stretching by a hot pin or a hot plate before the feed roller 26 of the stretching false twisting apparatus, or the false twisting process may be performed between the feed roller and the stretching roller. False twisting may be performed while being stretched in the above. At this time, if the method of performing false twisting while stretching between the feed roller and the stretching roller does not need to arrange a heating pin or a heating plate, etc., it is possible to keep the equipment incidental costs low, and the cost is reduced. It is preferable because of its excellent performance.
- a heater and a delivery roller are disposed between the stretching roller and the winding device to perform heat treatment.
- the heat treatment By performing the heat treatment, the dimensional stability of the false twisted yarn of the polylactic acid fiber can be further improved.
- the heater a contact heater or a non-contact heater can be used.
- a nip roller or a belt nip device be disposed on the delibery roller because the yarn can be sufficiently gripped.
- VDZVE the ratio between the peripheral speed (VE) of the drawing roller and the peripheral speed (VD) of the delivery roller
- 0.8 ⁇ VD / VE ⁇ 1.0 indicates a stable heat treatment without thread breakage. This is preferable because it can be performed.
- the temperature of the heater is preferably 100 to 250 ° C. in consideration of the efficiency of heat treatment and the melting point of polylactic acid.
- the heat treatment efficiency is lower than that of a contact type heater. Therefore, 150 to 350 ° C. is preferable for performing sufficient heat treatment without thread breakage.
- a triaxial friction false twist device, a belt double-up type friction false twist device, or the like can be used.
- a urethane disc is preferably used as the disc of the triaxial false twisting device.
- a urethane disc By making the disc surface flexible urethane, it is possible to prevent excessive deformation and scraping of the polylactic acid fiber.
- the hardness of the urethane disc a hardness of 75 to 90 degrees as measured by JIS ⁇ 6253 prevents the polylactic acid fiber from being excessively deformed or shaved, and furthermore, the replacement cycle due to disc wear is reduced. It is preferable because it can be extended, and more preferably 80 to 85 degrees. If the number of disks is in the range of 5 to 12, calcining can be performed without any problem, which is preferable.
- the ceramic disks are preferably arranged at the upstream end and the downstream end with respect to the running direction of the yarn, and two to four ceramic disks are also preferably arranged at the upstream side.
- chloropyrene wrapper or nitrilebutylene rubber can be preferably used as the material of the belt. By doing so, excessive deformation and shaving of the polylactic acid fiber can be prevented.
- NBR is more preferable in terms of durability, cost, and flexibility.
- the hardness of the belt is preferably 60 to 72 degrees as measured by JISK 625 in view of keeping the exchange cycle long, and more preferably 65 to 70 degrees. .
- the crossing angle of the belt is preferably 90 to 120 ° from the viewpoint that the yarn can be sufficiently twisted and the belt can be prevented from being worn.
- the ratio of the surface speed of the twisted body to the peripheral speed of the drawing roller (referred to as the yarn running speed) (surface speed of the twisted body / yarn running speed) may be 1.0 to 2.5. preferable.
- T 1 twisting tension
- ⁇ 2 untwisting tension
- stretch friction false twisting without fluff and yarn breakage can be performed.
- by setting the ratio to 2.5 or less surface wear of the twisted body is prevented, and the quality in the yarn longitudinal direction is stabilized even in continuous operation for several tens of hours.
- the ratio is more preferably 1.2 to 2.2, and even more preferably 1.25 to 2.0.
- the surface speed of the twisted body, Z thread running speed is expressed as "DZY” for a triaxial friction false twist type disk false twisting device, and "VR” for a belt-up type friction false twisting device.
- the ratio (T 2 / T 1) between the twisting tension (T 1) and the untwisting tension (T 2) is preferably 3.0 or less.
- T 2Z T 1 By setting T 2Z T 1 to 3.0 or less, generation of fluff can be suppressed, and untwisting can be reduced, so that a false-twisted yarn excellent in quality can be obtained. However, since yarn breakage after twisting is reduced, stable stretch friction false twisting becomes possible.
- T 1 is more preferably 0.1 to 2.8, and even more preferably 0.5 to 2.
- the temperature of the false twisting (the temperature of the false twist heater 27 in FIG. 7) is preferably 90 to 150 ° C.
- the false twisting temperature is more preferably 95 to 144 ° C, and still more preferably 100 to 140 ° C. C. This temperature range is particularly suitable when a spinning speed of 400 to 700 mZ is used as described above.
- the polylactic acid fiber having crimps by false twisting of the present invention has a maximum point strength (hereinafter abbreviated as 90 ° C strength) of 90 ° C when a tensile test is performed in an atmosphere of 90 ° C. It is preferably 4 c N dte X or more. By doing so, the dimensional change of the product can be suppressed when used in a high-temperature atmosphere, that is, the dimensional change of the fabric due to heating in the gluing step or the drying step is small, and the process passability is improved.
- the 90 ° C. strength is more preferably 0.5 cN / dtex or more, still more preferably 0.6 cN / dtex or more, and still more preferably 0.8 cNZdtex or more.
- the polylactic acid fiber having crimps by false twisting of the present invention preferably has a CR value, which is an index of crimp characteristics, of 10% or more. By doing so, the final product Therefore, good bulkiness and high stretchability can be obtained.
- CR value is more preferably 1
- the number of untwisted twists per 10 m of false twisted yarn is preferably 3 or less. By doing so, it is possible to obtain a highly practical dyed fabric having excellent uniformity in surface appearance as a product. In addition, staining spots can be suppressed.
- the untwisted number is more preferably 1 or less per 10 m, and even more preferably 0 per 1 Om.
- the ratio between the twisting tension and the untwisting tension may be adjusted by adjusting the ratio between the surface speed of the twisted body and the peripheral speed of the stretching roller.
- the polylactic acid fiber of the present invention has a crimp by a fluid crimping process.
- Fluid crimping is capable of providing a three-dimensional random high crimp and crimping with less damage to the yarn, so that a crimped yarn with high tensile strength can be obtained. Therefore, it is a crimping method suitable for use in a carpet.
- the fluid crimping method for example, a jet nozzle type, a jet stuffer type and the like can be adopted.
- the jet nozzle method is particularly preferable in order to achieve high crimping and realization thereof,
- a crimping nozzle described in U.S. Pat. No. 3,781,949 is preferably used.
- a combination of a cooling device and a rotary filter is used. Is also good.
- heating steam or heating air is preferably used, and heating air is more preferable from the viewpoint of reducing damage to the yarn.
- the temperature of the heating fluid applied to the yarn is preferably from 130 ° C to 210 ° C.
- the higher the temperature of the heating fluid the greater the crimpability can be imparted to the crimped yarn, and the bulkiness of the crimped yarn tends to be improved.
- the above temperature is too high, the single yarn may be fused or wound. It tends to lead to a reduction in the strength of the crimped yarn.
- the bulky yarn of the polylactic acid fiber subjected to the fluid crimping process preferably has a fineness of a single fiber of 3 to 35 dtex.
- abrasion resistance and practical durability can be maintained even in applications where a load such as a power pipe is applied.
- the single fiber fineness is set to 35 dtex or less, it is possible to obtain a bulky yarn having a soft touch and a good touch without having excessively large compressive elasticity of the fiber.
- a mixed fiber of fine fineness fibers and thick fineness fibers may be used as long as the fineness is in the above-mentioned fineness range.
- a more preferred single fiber fineness is 5 to 25 dtex.
- the bulky yarn of the polylactic acid fiber of the present invention which has been subjected to fluid crimping, preferably has a total fineness of 500 to 5,000 dtex. By doing so, it is possible to maintain good production efficiency in the twisting / setting process and tufting process in the production of carpet. In addition, by twisting two or three yarns dyed in different hues and the like, a bulky yarn suitable for a high-color and high-gloss carpet can be obtained. The more preferable total fineness of the bulky yarn is l, OO 0 to 3,500 dtex.
- the bulky yarn of the polylactic acid fiber subjected to the fluid crimping preferably has a crimp elongation of 3 to 35% after the boiling water treatment.
- this value By setting this value to 3% or more, even if heat treatment such as dyeing is performed, the bulkiness of the bulky yarn does not decrease, and it is possible to obtain a product such as a carpet with a high bulkiness. Further, when the content is 35% or less, a decrease in fiber strength is suppressed, and a product having excellent processability and durability during use can be obtained. A more preferred crimp elongation is 8 to 25%.
- the polylactic acid fiber of the present invention has a staple form.
- the slipperiness is improved by the inclusion of the “specific fatty acid amide”, so that the process passability can be improved, and the staple opening property ⁇ the staple dispersibility in the fiber structure is improved.
- the crimp development and the quality are improved.
- the following procedure is applied. Melting * The discharged yarn is cooled, greased, taken off, and then aligned, stretched, and heat-set. At this time, the spinning speed is set at 400 to 2,100 ⁇ and the draw ratio is set at 1.5 to 6 times, whereby a stable polylactic acid fiber having practical strength can be obtained. Aligning is performed by combining a plurality of wound yarns, and after receiving in a bunker, the total fineness is finally 5 to 100,000 (16; In order to uniformly stretch the tow, it is preferable to perform liquid bath stretching using hot water at 75 to 100 ° C. or steam stretching.
- Crimping method For example, a staffing box method, a press-in heating gear method, a high-speed air injection press-in method and the like can be mentioned.
- Other crimping means include, for example, a method in which fibers are given asymmetry in the cross-sectional direction, and a spiral crimp is developed by a difference in orientation during stretching or a difference in shrinkage caused by relaxing heat treatment after stretching. is there.
- the number of crimps is preferably 6 or more Z25 mm or more, and the crimp ratio is preferably 10% or more. By doing so, it is possible to obtain a product that is rich in bulkiness, has a light feeling, and has a good texture. However, even if the crimp is too fine or the degree of crimp is too large, it tends to be difficult to exhibit bulkiness, so the number of crimps is 25 peaks / 25 mm or less, and the degree of crimp is It is preferably at most 50%.
- the number of crimps is more preferably 8 to 15 peaks per 25 m tn, and the crimp rate is more preferably 15 to 30%.
- the crimped form of the fiber may be a mechanical crimp or a spiral crimp, but is preferably a spiral crimp to further increase bulkiness.
- the oil after finishing or after crimping as a finishing agent.
- the fibers are then cut to the desired fiber length to obtain staples.
- the fiber length of the staple made of the polylactic acid fiber of the present invention is preferably 5 to 120 mm, more preferably 10 to 100 mm.
- the single fiber fineness of the stable fiber made of the polylactic acid fiber of the present invention is preferably from 0.1 to! OO dtex, more preferably 0.3 to 50 dtex.
- the decrease in quality due to abrasion of the polylactic acid fiber is more pronounced as the single fiber fineness is smaller.
- the polylactic acid fiber of the present invention can be suitably used as a binder for other fibers such as natural fibers for molding.
- the polylactic acid fiber of the present invention has excellent dispersibility due to its good slipperiness, so that the adhesive force is greatly improved, so that a product with excellent durability can be obtained.
- the “specific fatty acid amide” contained in the polylactic acid fiber of the present invention, particularly the fatty acid bisamide has an action of improving the crystallization rate as a crystal nucleating agent. Advance, molding rhino The cycle can be shortened.
- the component constituting the fiber has a temperature-reducing crystallization exothermic peak of 100 ° C. or more.
- T c ′ the higher the crystallization rate, indicating that the polylactic acid fiber of the present invention has good moldability as a binder when T c ′ is 100 ° C. or higher.
- a more preferred T c ′ is 120 ° C. or higher.
- T c ′ can be measured by a DSC (differential scanning calorimetry) as an exothermic peak when the temperature is lowered at a constant rate (16 ° C./min) after melting once.
- the polylactic acid fiber of the present invention preferably has a lower melting point than usual so that a sufficient binding force can be obtained even by a low-temperature heat treatment.
- a means for lowering the melting point polylactic acid having low optical purity as described above may be used, or copolymerized polylactic acid may be used.
- the fibers to be bonded in the binder application include glass fibers, carbon fibers, synthetic fibers such as polyethylene terephthalate, nylon, acrylic and polyolefin, and vegetable fibers.
- synthetic fibers such as polyethylene terephthalate, nylon, acrylic and polyolefin, and vegetable fibers.
- a polylactic acid fiber having a lower melting point than usual when used, a polylactic acid fiber having a higher optical purity or a lower copolymerization rate and a relatively higher melting point can be used.
- the yarn package of the present invention is characterized in that the polylactic acid fiber of the present invention having the form of a filament is wound.
- the yarn package of the present invention preferably has a saddle (edge) of 7 mm or less.
- the unwinding speed required for drawing, false twisting, weaving, etc. differs from 500 to 1 000 mZ, but by setting the saddle to 7 mm or less, the scraping between the unwound yarn and the saddle portion can be prevented. It can suppress the shaving of the surface of polylactic acid fiber.
- the defect caused by the scraping occurs in accordance with the cycle of the package end surface (corresponding to the yarn length from the saddle to the other saddle).
- the saddle portion is liable to cause fluctuations in the unwinding tension of the yarn, but this can be suppressed and yarn processing can be performed stably.
- the saddle is more preferably 5 mm or less, even more preferably 3 mm or less.
- the bulge is preferably reduced, and more specifically, the bulge ratio is preferably 10% or less. Do so thus, the unwinding tension can be suppressed.
- the vano-resist rate is more preferably 7% or less, and further preferably 5% or less.
- the yarn package of the present invention preferably has a fiber weight of 4 kg or more per package. By doing so, the package exchange period in the yarn processing process can be reduced, and productivity can be increased.
- the fiber weight per package is more preferably 7 kg or more.
- the fiber product of the present invention is characterized by using at least a part of the polylactic acid fiber of the present invention.
- Examples of the fiber product of the present invention include various forms such as a woven fabric, a knitted fabric, a nonwoven fabric, a spun yarn, a cotton wool, and a carpet.
- the polylactic acid fiber of the present invention may be used alone, or may be mixed with other fibers, such as mixed fiber, cross weaving, and cross knitting.
- fibers to be mixed include biodegradable fibers such as polydalicholate, polyhydroxybutylate, polybutylene succinate, polyprolactone, natural fibers such as cotton, silk, hemp, and wool, rayon, and acetate.
- Recycled fibers such as polyethylene terephthalate, nylon, acrylic, vinylon, polyolefin, polyurethane, and the like. Fibers made of plant-derived materials such as silk, cotton, hemp, rayon, etc. are preferable because of their overall excellent texture and biodegradability.
- Nonwoven fabric is one of the preferred embodiments of the fiber product of the present invention.
- a stable polylactic acid fiber of the present invention may be used, or a method in which spinning of a so-called spun-pound or melt-pro and a nonwoven fabric forming process are continuous. May be used.
- the staple when the polylactic acid fiber staple of the present invention is used, the staple is excellent in slipperiness, and has extremely good spreadability with an opener / card machine. A uniform web can be produced in both cases and when mixed with other fibers. Therefore, the non-woven fabric obtained by subjecting the non-woven fabric to heat bonding also has high density with little unevenness in density.
- the staple of the polylactic acid fiber of the present invention is converted into a nonwoven fabric, the staple has a single fiber fineness and a fiber length of 0.3 to: LOO dtex, 10 to 100: 11 ⁇ 1 for various applications. Is possible and preferred.
- the basis weight of the nonwoven fabric 100 to 500 gZm 2 is preferable because it can be applied to various uses.
- Spun yarn is also a preferred embodiment of the fiber product of the present invention. Since the polylactic acid fiber stable of the present invention has excellent slipperiness, it has good processability in spinning processes such as spinning, roving and fine spinning, and has unevenness in thickness, unevenness in twist, fluff, and physical properties. It is possible to obtain a high-quality spun yarn with small staining spots and the like.
- the polylactic acid fiber stable of the present invention it is preferable to use at least a part of the polylactic acid fiber stable of the present invention to be used for a spun yarn, which has an irregular cross section, since the feeling and swelling of the spun yarn are further improved.
- the single fiber fineness and the fiber length of the polylactic acid fiber staple of the present invention used for the spun yarn are 0.5 to 10.
- a thickness of 100 mm is preferred because of good passability of the spinning process.
- 1.0 to: 0.5 dtex, 30 to 50 mm, for wool and worsted spinning 1.0 to 3.0 Odtex, 70 to 9 Omm, wool In the case of spinning with wool, 3.0 to 7.0 Odtex and 30 to 50 mm are preferable because the uniformity of the blended yarn is improved.
- the fineness of the spun yarn 10 to 500 dtex is preferable because it can be widely applied to various uses. It is also preferable to appropriately twist the spun yarn in the production process since the texture, design, and strength of the spun yarn can be improved.
- Intermediate cotton is also one of the preferred embodiments of the textile product of the present invention. Since the staples of the polylactic acid fiber of the present invention have excellent slipperiness, the staples are uniformly dispersed in the cotton so that high-grade cotton with very little unevenness of cotton density can be obtained.
- the single-fiber fineness of the polylactic acid fiber stable of the present invention used for the inner cotton is preferably 3 dte X or more, since compression resistance can be improved.
- the single fiber fineness of the inner cotton is more preferably 5 dte X or more.
- the single fiber fineness of the inner cotton is 50 dte X or less, and the coarseness of the inner cotton can be suppressed. It is preferred.
- the single fiber fineness of the inner cotton is more preferably 20 dtex or less.
- a smoothing agent such as silicone
- the inner cotton which is the textile product of the present invention, preferably has a bulkiness of 50 cm 3 / g or more.
- the porosity is high, and when used for a futon, for example, the heat retention as a futon is increased and the futon is satisfactory.
- the bulkiness more preferably 6 0 cms / g or more, still more preferably 1 0 0 cm 3 Z g or more. The higher the bulkiness, the better the lightness and heat retention.
- the compression ratio of the inner cotton is 45% or more.
- the compression ratio is an index indicating the bulkiness of the inner cotton when compressed. By setting the compression ratio to 45% or more, the bulkiness can be maintained even with a compression load, and the above-mentioned heat retention can be maintained.
- the compression ratio is more preferably 50% or more, and even more preferably 60% or more.
- the compression ratio is preferably 90% or less in order to prevent the compression ratio from being too high and giving a hard touch feeling.
- the inner cotton has a recovery rate of 70% or more, since an elastic touch can be obtained.
- the recovery rate is an index indicating the degree of bulkiness recovery when a load is removed after compressing a cotton wool by applying a load.
- the polylactic acid staple of the present invention is excellent in slipperiness, so that entanglement and binding between the staples during compression are reduced, thereby providing a resilient, high-recovery cotton pad. It becomes.
- the recovery rate is preferably 85% or more, and the larger the value, the better.
- Carpet is also a preferred embodiment of the textile product of the present invention.
- the spinning speed is set to 400 to 2,000 mZ
- the draw ratio is set to 1.5 to 6 times, and crimping is applied. Good to do.
- a steam processing device or the like may be used in combination for the purpose of, for example, fixing the stretching point supplementarily.
- the stretching method may be one step or multiple steps.
- the spinning, stretching and crimping may be performed continuously without being wound once, or may be wound once at the stage of an undrawn yarn or at the stage of a drawn yarn and then flowed to the next step.
- Examples of the crimping method include mechanical crimping with a gear or the like, crimping by asymmetric heat treatment during spinning, crimping by false twisting, crimping by fluid crimping, and the like.
- the crimped yarn of the polylactic acid fiber obtained in this manner is used at least for a part of the pile, for example, a woven carpet process such as stepping, Wilton, double face, and akisminster, tufted, hook drag Embroidery carpet processes, such as bond, electrodeposition, and cord carpet processes, and knitting carpet processes such as nits and Russells.
- a carpet can be obtained as one embodiment of the fiber product of the present invention.
- the above-described raw carpet web may be dyed, or may be performed before the production process of the raw carpet web. If dyeing is performed before the manufacturing process of the raw material, the yarn is dyed using the conventionally known cheese dyeing and kase dyeing, and the carpet raw material is manufactured using this yarn-dyed yarn. Just do it.
- the carpet may be mixed with antistatic yarn, monofilament, and other yarns for the purpose of enhancing its antistatic properties or enhancing its design.
- a tufting card made of a pile surface yarn and a tufted base fabric.
- the crimped yarn of the polylactic acid fiber is used as the surface yarn of the pile, but also a part of the base fabric, preferably 50% or more, of the polylactic acid fiber.
- an aliphatic polyester fiber or a natural fiber is also preferable to use from the viewpoint of biodegradability of the entire carpet. From the viewpoint of biodegradability of the entire carpet, it is preferable to mainly use polylactic acid fibers also as the fibers constituting the base fabric.
- the base fabric of the tufted carpet is a staple nonwoven fabric obtained by a needle punch method, a long-fiber nonwoven fabric obtained by a spunbond method or a flash spinning method, or a woven fabric obtained by a weaving method. Although it can be used as a representative one, it is preferable to use a long-fiber nonwoven fabric or a woven base fabric in order to improve the strength of the base fabric and the product required at the time of tufting.
- the tufted carpet Steinore is made of birorekatu ' A loop style can be used, but a cut and loop may be used to further enhance the design.
- the pile height may be appropriately set depending on the application, but is preferably 3 to 30 mm, and more preferably 10 to 20 mm.
- the tufted carpet is then backed by a conventionally known method. In this case, it is also preferable to apply shearing according to the application.
- the fiber product of the present invention preferably has a dry rub fastness of class 3 or higher, and a wet rub fastness of class 2 or higher. By doing so, it can be put to practical use.
- the dyeing fastness test for friction can be evaluated by a friction tester ⁇ type (Gakushin type) according to JIS L0849. This evaluation method involves rubbing a dyed textile with a cotton cloth and evaluating the color transfer from the textile to the cotton cloth. It is more preferable that both the fastness to dry rubbing and the fastness to wet rubbing are at least Grade 3.
- the polylactic acid fibers of the present invention include shirts, blousons, pants, coats, jumpers, suits, blazer, jackets, dresses, sweaters, cardigans, skirts, plauses, trainers, sportswear, uniforms, innerwear, socks, tights, Not only clothing such as hats, scarves, gloves and belly-wraps, but also clothing materials such as cups, pads, sewing threads, fasteners and linings, materials such as handkerchiefs, towels and bleachers, curtains and carpets , Mats, wallpapers, furniture, etc., interior materials and vehicle parts, cushioning materials, stuffed animals, etc., cotton, belts, nets, ropes, heavy cloth, bags, sewing thread, industrial materials, felt, etc.
- Non-woven fabric, filter, artificial turf, etc. When used as a binder fiber, paper, nonwoven fabric, cushion material, hot-pressed board, spun yarn, etc. are suitable. It can be used as agriculture, forestry and fishery materials, civil engineering and construction materials, bedding materials, living resources, automotive materials, clothing materials, and the like.
- nonwoven fabric which is the textile product of the present invention is used for sanitary purposes such as diapers and sanitary products, cushioning materials, wiping cloths, tablecloths, finoletters, tea bags, draining garbage bags, shoe materials and cloth materials. It is also suitably used for bags, packaging and the like.
- oligomers such as lactide, which is a cyclic dimer of lactic acid, are hydrolyzed to generate carboxyl group terminals, so that all of the polymer carboxyl group terminals, monomer-derived carboxyl group terminals, and oligomer-derived carboxyl group terminals are generated. And the total concentration of the carboxyl group terminals is determined.
- Thread break 4 times / t or less is acceptable.
- Boiling water shrinkage (%) [(L 0—L 1) / L 0] X 100
- L 0 The length of the skein measured under the initial load of 0.008 cN / dteX by removing the ⁇ to be measured.
- L 1 The skein length measured under a load of 0.088 cN / dteX after the skein for which L 0 was measured is treated in boiling water for 15 minutes in a substantially load-free state, and air-dried.
- the measurement was carried out in a normal mode with a yarn speed of 200 mZ and a measurement time of 1 minute using “Wester Tester 1 MODE L C” manufactured by Zellweger.
- the cross section of the yarn was cut out and determined from the following formula from the diameter D of the circumscribed circle of the single fiber cross section and the diameter d of the inscribed circle of the single fiber cross section.
- the fiber sample is laminated and wound tightly on a transparent plate so that the color of the base is almost negligible, and measured by using Minolta's Skoke Trophometer CM-3700 d. did. At this time, the measurement was performed in a 10 ° visual field using D 65 (color temperature 6504K) as a light source.
- the rotation speed (S) of the twisted body during false twisting is measured with a strobe, the combustible body surface speed (SXLL) is determined from the perimeter (LL) of the twisted body, and the speed of the drawing roller is traveled along the yarn.
- Speed The degree (Y) was calculated by the following equation.
- the initial sample length was set to 200 mm and the pulling speed was set to 200 mm / min, and a load-elongation curve was obtained under the conditions shown in JIS L1013.
- the maximum point load value was divided by the initial fineness, which was taken as 90 ° C strength.
- the calcined yarn was pulled out by 1 Om, and the number of untwisted portions was counted visually to determine the untwisted number.
- the false twisted yarn was skeined, treated in boiling water for 15 minutes in a substantially load-free state, and air-dried for 24 hours.
- the sample was immersed in water with a load equivalent to 0.088 cNZ dtex (0.1 gf / d), and the skein length L'0 after 2 minutes was measured.
- a load equivalent to 0.088 cNZ dtex 0.1 gf / d
- the crimped yarn unwound from the package was left for at least 20 hours in an atmosphere at room temperature of 25 to 35 ° C and a relative humidity of 50 to 75%, and immersed in boiling water for 30 minutes without load. Then, it was dried to an equilibrium moisture content. An initial load of 2 mg / dtex was applied to the sample yarn, and marking was performed at a position of a sample length of 50 cm (L 1) after 30 seconds. Next, after applying a constant load of lOOmg / d'tex to the same sample for 30 seconds, the crimp elongation rate was calculated from the sample length (L2) at the marking position by the following formula.
- the atmosphere condition when the yarn is left before the boiling water treatment is the state of the crimped yarn when used in the actual carpet manufacturing process.
- the crimping property has reached an equilibrium state due to moisture absorption, and it takes time to reach the equilibrium state. Conditions that do not cause excessive condensation and do not cause condensation are selected.
- the fiber sample was wound on a transparent plate, and the crimp spots were visually evaluated as follows.
- the dyed fabric is subjected to the following processing conditions in accordance with the JISL 101 & Taber method, and the surface wear is visually observed. ⁇ indicates that there is almost no wear, and ⁇ indicates that it is slightly worn. If the wear is severe, it is evaluated as X and a three-stage evaluation is made. Case ⁇ ⁇ ⁇ . X
- the dyed fabric was visually evaluated. ⁇ Passed above.
- the gloss of the dyed carpet was visually evaluated as follows.
- the stained carpet was placed under sunlight and evaluated as follows by observing the degree of ground penetration.
- the sensory evaluation was performed as follows by touching the dyed carpet by hand.
- ⁇ The surface becomes rough due to abrasion, whitening, shininess, and slight settling are also present.
- Lactide produced from L-lactic acid with an optical purity of 99.5% was converted into a bis (2-ethylhexanoate) tin catalyst (lactide to catalyst molar ratio-10000: 1) in a nitrogen atmosphere. Polymerization was performed at 180 for 140 minutes to obtain polylactic acid P1. The weight average molecular weight of polylactic acid P1 was 145,000, the amount of residual lactide was 0.09% by weight, and the concentration of carboxyl group terminals was 19 eq / t.
- EBA ethylene bisstearic acid amide
- Polylactic acid P3 containing 7% by weight of EBA was obtained in the same manner as in the production of P2, except that P1: EBA was changed to 93: 7 (weight ratio).
- Polylactic acid P 6 (Polylactic acid containing 4% by weight of BA) EBE is a monoamide behenic acid amide (BA) [Nippon Yushi's “Alflow B-10”, melting point: 1 Polylactic acid P6 containing 4% by weight of BA was obtained in the same manner as in the production of P2 except that the temperature was changed to 10 C].
- Polylactic acid P 7 Polylactic acid containing 4% by weight of SA
- SA stearic acid amide
- chip blend EBA is 1% by weight
- the polymer After melting at 220 ° C, the polymer is measured by the measuring pump 3 in the spin block 4 heated to 220 ° C, and the molten polymer is guided to the spinning pack 5, and 36 discharge holes are formed. It was discharged from the spinneret 6 (discharge port diameter 0.25 mm, hole depth 0.75 mm) (Fig. 4).
- the residence time of the polymer from melting to spinning was about 10 minutes. There was almost no smoke right under the cap.
- the spun yarn 8 is cooled and solidified by a cooling device 7 at an ambient temperature of 25 ° C. and a wind speed of 25 mZ, and bundled, and a fatty acid ester-based smoothing agent 40% by weight is supplied by a lubrication guide 9.
- a lubrication guide 9 isotridecyl stearate 2 0 wt% + O lipped palmitate 2 0 wt. / 0
- spinning oil containing (Emarujiyo emissions concentration 1-5%) as oil to the fiber purity is 1 wt%
- the yarn was applied, and the yarn was entangled by the entanglement device 10. Next, the peripheral speed is picked up by the unheated first take-off roller 11 with a peripheral speed of 300 m / min.
- the film was wound by the winder 13 via the non-heated second take-off roller 12 at 30 m / min to obtain a wound yarn package 14.
- the yarn tension at the time of winding was 0.08 cN / dtex.
- the spinnability was good, and no yarn breakage or fluff was observed.
- the obtained undrawn yarn 14 was preheated through a feed roller 15 through a first hot-hole 16 at 90 ° C, and then drawn 1.45 times, and then heated at 130 ° C.
- Heat setting was performed by the second hot roller 17 and winding was performed via the cold roller 18 to obtain a package 20 (FIG. 5) of 84 dtex, 36 filaments, and a drawn yarn having a round cross section.
- the stretchability was good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the obtained fiber has a carboxyl group terminal concentration of 23 eq / t, a cooling crystallization temperature Tc 'of 126 ° C, a strength of 3.5 cN / dtex, an elongation of 38%, and a boiling water shrinkage of 7. 0%, Good yarn physical properties of U% 0.7% were exhibited.
- the b * value was 1.2, which was a good color tone with almost no yellowness.
- the drawn yarn was used as a warp and a weft to produce a plain woven fabric (weaving density: 95 / 2.54 cm, weft: 80 / 2.54 cm).
- the warp was twisted at 300 turns / m. At this time, almost no yarn breakage or fluff was generated in the twisting and weaving processes, and excellent weaving process passability was exhibited.
- this fabric was dyed under the following conditions.
- the resulting fabric had an excellent texture with little mechanical creaking feeling unique to polylactic acid fibers, while being supple and soft. In addition, it was excellent in color development and no staining spots. In addition, both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance. Also, as a result of observing the surface of the fabric after the friction test by SEM, almost no abrasion of the yarn occurred (Fig. 1).
- the residence time of the polymer from melting to spinning was about 10 minutes.
- the content of EBA is 4 weight.
- the smoke was found just below the mouthpiece, as the ratio was higher than / 0 and Example 1.
- the spinnability is good and the yarn No cutting or fluff was observed.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the obtained fiber has a carboxyl group terminal concentration of 24 eq Zt, a cooling crystallization temperature Tc 'of 127 ° C, a strength of 3.1 c NZ dte X, an elongation of 39%, and a boiling water shrinkage of 6. Good yarn physical properties of 0% and U% 1.5% were exhibited. However, the b * value of the drawn yarn was higher than that of Example 1, and although it was not a problem, it was slightly yellowish.
- This fabric was dyed in the same manner as in Example 1.
- the obtained fabric had an excellent texture with little mechanical creaking feeling unique to polylactic acid fibers, while being flexible and soft.
- the coloring property was excellent, the U% of the yarn was larger than that of Example 1 and there was some aggregation of EBA.
- both the fastness to dry friction and the fastness to wet friction were grade 5 and were excellent in abrasion resistance.
- Polylactic acid, P 1 and P 1 2 2 of the charging ratio in a weight ratio 3:. 1 (.. EBA is 0 to 3 wt / 0) except for using the ones in the same manner to Example 1, the melt spinning Then, a drawn yarn of 84 dtex and 36 filaments was obtained.
- the residence time of the polymer from melting to spinning was about 10 minutes. The spinnability was good, and no yarn breakage or fluff was observed.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the obtained fiber has a carboxyl group terminal concentration of 22 eq / t, a cooling crystallization temperature Tc 'of 121 ° C, a strength of 3.6 cN / dteX, an elongation of 39%, and a boiling point recovery.
- Good yarn physical properties of 7.5% and U% of 0.7% were exhibited.
- the 13 * value was 0.8, indicating a good color tone with almost no yellow tint.
- Example 2 This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had a supple, soft and excellent texture.
- the content of EBA was smaller than that of Example 1, the mechanical squeaky feeling peculiar to the polylactic acid fiber remained slightly.
- the color was excellent, and the quality was excellent with no staining spots.
- the fastness to dry rubbing and the fastness to wet rubbing were both grade 3 and acceptable, but the abrasion resistance was one step better than in Example 1.
- Example 2 Using this dyed fabric, industrial cutting and industrial sewing were performed. Compared to Example 1, some fusion occurred at the cut portion of the fabric during cutting, and the sewing needle was slightly stained, but showed sufficient process passability. A shirt was produced using the cut fabric and subjected to a durability test in which the shirt was worn for one month. As a result, although fluffiness, whitening, and shine were very small, the product showed sufficient durability, although it was a step further than in Example 1.
- the residence time of the polymer from melting to spinning was approximately 6 minutes. The spinnability was good, and no yarn breakage or fluff was observed.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the resulting fiber exhibited good yarn physical properties such as a strength of 5.0 cN / dtex, an elongation of 22%, a boiling water shrinkage of 8.0%, and a U% of 0.7%.
- the b * value was 1.1, indicating a good color tone with almost no yellow tint.
- This fabric was dyed in the same manner as in Example 1.
- the obtained fabric had an excellent texture with little mechanical creaking feeling unique to polylactic acid fibers, while being flexible and soft.
- the color was excellent, and the quality was excellent with no staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- Example 2 Melt spinning and stretching were performed in the same manner as in Example 1 except that the discharge amount was changed, the peripheral speeds of the first and second take-off rollers were set to 1,500 mZ, and the draw ratio was set to 2.4 times. An 84 dtex, 36 filament drawn yarn was obtained.
- the residence time of the polymer from melting to spinning was approximately 12 minutes. The spinnability was good, and no yarn breakage or fluff was observed.
- the stretchability was also good, and the stretch honor percentage was 98% or more, and no fuzz was attached to the guides.
- the resulting fiber exhibited good yarn properties such as a strength of 3.5 cN / dtex, an elongation of 41%, a boiling water shrinkage of 7.0%, and a U% of 1.3%.
- the b * value was 1.3, indicating a good color tone with almost no yellow tint.
- Example 2 Using this drawn yarn, a plain fabric was produced in the same manner as in Example 1. At this time, there was almost no yarn breakage or fluff in the fuel yarn process and weaving process, and excellent weaving process passability was exhibited.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had an excellent texture with little mechanical squeaky characteristic of polylactic acid fibers, while being supple and soft.
- the coloring property was excellent, since the u% of the yarn was larger than that of Example 1, some staining spots were observed as compared with Example 1.
- dry rub fastness, wet The rub fastnesses were both grade 4 and excellent in abrasion resistance.
- Example 6 Melting was carried out in the same manner as in Example 1 except that a 1: 1 polylactic acid was used in which the charge ratio of P1 and P2 was 1: 1 (EBA was 2 weight /.). Spinning and drawing were performed to obtain a drawn yarn of 84 dtex and 144 filaments. '
- the residence time of the polymer from melting to spinning was about 10 minutes. The spinnability was good, and no yarn breakage or fluff was observed.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the resulting fiber has a carboxyl group terminal concentration of 23 eq Z, a cooling crystallization temperature Tc 'of 126 ° C, a strength of 3.4 c NX dtex, an elongation of 39%, and a boiling water shrinkage of 7.5%. , U% 0.9%, indicating good yarn properties. Also, the 13 * value was 1.2, which was a good color tone with almost no yellow tint.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had an excellent texture with little mechanical squeaky characteristic of polylactic acid fibers, while being supple and soft.
- the color was excellent, and the quality was excellent with no staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- BA was 1% by weight
- melt spinning was carried out in the same manner as in Example 1 except that a spinneret (discharge hole diameter: 0.33 mm, hole depth: 0.75 mm) having two discharge holes was used.
- Drawing was performed to obtain a drawn yarn of 84 dtex and 12 filaments.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the obtained fiber had a carboxyl group terminal concentration of 25 eq / t, no temperature-falling crystallization peak detected, an intensity of 3.5 cN / dteX, an elongation of 39%, a boiling water shrinkage of 7.0%, U% 0.8% showed good yarn properties.
- the 3 * value was 1.6, indicating a good color tone with almost no yellow tint.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had an excellent texture with little mechanical squeaky characteristic of polylactic acid fibers, while being supple and soft.
- the color was excellent, and the quality was excellent without staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- the stretchability was good, although it was one step higher than that of Example 1, and the stretch superiority rate was 97%, and the adhesion of fluff to the guides was very small.
- the obtained fiber had a carboxyl group terminal concentration of 24 eq / t, no temperature-falling crystallization peak detected, strength of 3.5 cdtex, elongation of 39%, boiling water shrinkage of 0.0%, U% of 1.4% And good yarn physical properties. Also, the 13 * value was 1.2, which was a good color tone with almost no yellow tint.
- Example 1 This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had a supple, soft and excellent texture. However, some mechanical creaking feeling peculiar to polylactic acid fiber remained. In addition, although the coloring properties were excellent, slight staining spots were observed as compared with Example 1.
- the fastness to dry rubbing and the fastness to wet rubbing were both 3 grades, which were acceptable. However, the abrasion resistance was one step higher than in Example 1.
- Example 2 Using this dyed fabric, industrial cutting and industrial sewing were performed. Compared to Example 1, some fusion occurred at the cut portion of the fabric during cutting, and the sewing needle was slightly stained, but showed sufficient process passability. Using this cut fabric, a shirt was prepared and subjected to a durability test in which the shirt was worn for one month. As a result, although a step was taken over in Example 1, fluffing, whitening, and shine were very small and sufficient product durability was exhibited.
- the obtained fiber had a carboxyl group terminal concentration of 22 eq / t, no crystallization peak at temperature decrease, strength of 3.6 cN / dtex, elongation of 39%, boiling water shrinkage of 7.5%, U% 0.7%. Further, the 13 * value was 0.5, which was a good color tone with almost no yellow tint.
- Example 2 Using this drawn yarn, a plain woven fabric was produced in the same manner as in Example 1, and dyed. In the warping and weaving processes, fluffing occurred frequently and the weaving property was poor. The resulting fabric was inferior to Example 1 in the texture of the mechanical creaking characteristic of the polylactic acid fiber. In addition, the fastness to dry friction and the fastness to wet friction were class 1 and the abrasion resistance was poor. In addition, the surface of the fabric after the friction test was observed by SEM. As a result, the wear of the yarn was remarkable (Fig. 2). In addition, color transfer occurred due to the scraped polymer adhering to the cotton cloth.
- the obtained fiber had a carboxyl group terminal concentration of 22 eq / t, no crystallization peak at temperature decrease, strength 3.6 cN / dte X, elongation 39%, boiling water shrinkage 7.5%, U % Was 0.7%.
- the b * value was 0.5, which was a good color tone with almost no yellow tint.
- a plain woven fabric was produced in the same manner as in Example 1, and dyed and processed. Adjustment Fluff was also found in the warp and weaving processes, and the process passability was poor.
- the obtained fabric had a mechanical squeaky feeling peculiar to the polylactic acid fiber and was inferior to Example 1 in texture.
- the fastness to dry friction and the fastness to wet friction were class 2 and poor in abrasion resistance.
- the obtained fiber has a carboxyl group terminal concentration of 27 eq / t, a cooling crystallization temperature Tc 'of 127 ° C, a strength of 2.8 cN / dtex, an elongation of 40%, and a boiling water shrinkage of 5. 0. U% was 2.1%.
- the drawn yarn had a b * value of 6.1, which was highly colored, making it difficult to use for clothing.
- Example 2 Using this drawn yarn, a plain woven fabric was produced in the same manner as in Example 1, and dyed. The obtained fabric had remarkably stained spots and was inferior in quality.
- the obtained fiber had a carboxyl group terminal concentration of 25 eq / t, a temperature-falling crystallization peak was not detected, an intensity of 3.7 cN / dte X, an elongation of 40%, a boiling water shrinkage of 7.0%, and U % Was 1.8%.
- a plain woven fabric was produced in the same manner as in Example 1, and dyed.
- the obtained fabric had remarkably stained spots and was inferior in quality.
- both the fastness to dry friction and the fastness to wet friction were grade 1 and the abrasion resistance was poor.
- Polylactic acid, P 1 by weight ratio: P 7 3: 1 and so as to Chippupurendo (. SA 1 wt / 0) to, by changing the discharge amount, the circumferential speed of the first take-up roller 8 0
- Chippupurendo (. SA 1 wt / 0) to, by changing the discharge amount, the circumferential speed of the first take-up roller 8 0
- Melt spinning and drawing were carried out in the same manner as in Example 1 except that the draw ratio was 0 m / min and the draw ratio was 4, thereby obtaining a drawn yarn of 84 dtex and 36 filaments. .
- the obtained fiber has a carboxyl group terminal concentration of 26 eq Zt, no temperature-falling crystallization peak detected, strength of 3.7 c NZ dte X, elongation of 41%, boiling water shrinkage of 7.0%, U% 2.2%.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the obtained fiber exhibited good yarn physical properties such as a strength of 3.5 cN / dtex, an elongation of 40%, a boiling water shrinkage of 7.0%, and a U% of 0.7%.
- the b * value was 1.2, indicating a good color tone with almost no yellow tint.
- Example 2 Using this drawn yarn, a plain woven fabric was produced in the same manner as in Example 1. However, no yarn breakage or fluff occurred in the fuel yarn process and the weaving process at this time, and excellent weaving process passability was exhibited. Further, at this time, the weaving property was better than that of Example 1, and the weaving speed was increased to increase the productivity.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric exhibited an excellent texture with little mechanical creaking feeling unique to polylactic acid fibers, while being supple and soft.
- the color was excellent, and the quality was excellent with no staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- the stretchability was also good, and the stretch honor ratio was 98% or more, and no fuzz was attached to the guides.
- the resulting fiber exhibited good yarn physical properties of a strength of 3.5 cN / dtex, an elongation of 40%, a boiling water shrinkage of 7.0%, and a U% of 0.7%.
- b had a good hue of 1.2 with almost no yellowish taste.
- Example 2 Using this stretched yarn, a plain woven fabric was produced in the same manner as in Example 1. However, no yarn breakage or fluff occurred in the twisting and weaving processes at this time, and excellent weaving process passability was exhibited. Further, at this time, the weaving property was better than that of Example 1, and the weaving speed was increased to increase the productivity.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had an excellent texture with little mechanical squeaky characteristic of polylactic acid fibers, while being supple and soft.
- the color was excellent, and the quality was excellent with no staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- the residence time of the polymer from melting to spinning was approximately 11 minutes. The spinnability was good, and no yarn breakage or fluff was observed.
- the stretchability was also good, and the stretch honor ratio was 99%, and no fuzz was attached to the guides.
- the resulting fiber exhibited good yarn properties such as a strength of 3.5 cN / dtex, an elongation of 40%, a boiling water shrinkage of 7.0%, and a U% of 0.8%.
- the b * value was 3.0, which was a good color tone with almost no yellow tint. 5
- a plain weave was produced in the same manner as in Example 1, however, there was almost no occurrence of yarn breakage or fluff in the twisting and weaving processes at this time, showing excellent weaving process passability. .
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric had an excellent texture with little mechanical squeaky characteristic of polylactic acid fibers, while being supple and soft.
- the color was excellent, and the quality was excellent without staining spots.
- both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- the spinning was performed in the same manner as in Example 1 until the confounding was given. Then, between the first hot roller 21 at a peripheral speed of 300 OmZ and 95 ° C and the second hot roller 122 at a peripheral speed of 450 m / min and 135 ° C. After drawing and heat treatment, the film was wound by a winder 23 with a winding tension of 0.12 cN / dte X to obtain a drawn yarn package 24 of 84 dtex, 36 filaments and a round cross section. .
- the residence time of the polymer from melting to spinning was about 10 minutes. There was also almost no smoke right under the base. The spinnability was good, and no yarn breakage or fluff was observed.
- the obtained fiber has a carboxyl group terminal concentration of 22 eq Zt, a cooling crystallization temperature Tc 'of 126 ° C, a strength of 3.5 cN / dtex, an elongation of 40%, and a boiling water shrinkage of 7. Good yarn physical properties of 0% and U% of 0.7% were exhibited. In addition, the b * value was 1.2, which was a good color tone with almost no yellow tint.
- This fabric was dyed in the same manner as in Example 1.
- the resulting fabric is flexible and Despite being soft, it exhibited an excellent texture with little mechanical squeaky feeling unique to polylactic acid fibers. In addition, the color was excellent, and the quality was excellent with no staining spots. In addition, both the fastness to dry friction and the fastness to wet friction were grade 4 and were excellent in abrasion resistance.
- PO Y-DT A two-step method in which PO Y is once wound and then stretched by a stretching machine
- / o 1 weight (Lee Seo tridecyl stearate 2 0 wt% + O lipped palmitate 2 0 wt. / 0) spinning oil containing (Emarujiyon concentration 1-5%) relative to the fiber.
- / 0 was applied, followed by at first take-up roller 1 1 and the second take-up roller one 1 2 taken up at 7 0 O mZ min, to obtain a ⁇ yarn packages one di 1 4 at ⁇ machine 1 3.
- This undrawn yarn is drawn at a drawing temperature of 70 ° C at 3.2 times, and then the drawn yarn is preheated at a heating roll temperature of 130 ° C, and then drawn at a crimping machine at 200 ° C. C underwent heating and pressurizing to give crimps. Then, the crimp is stretched to an extent that it cannot be extended, and the coil is wound with a winding tension of 0.07 c NZ d tex to obtain 2,0 0 d tex, 1
- a crimped yarn composed of 36 filament polylactic acid fibers was obtained.
- the crimped yarn was tufted onto a base fabric made of a polylactic acid nonwoven fabric to form a level loop pile carpet, and the carpet material was dyed by a conventional method to produce a carpet.
- the chip blend EBA was 0.3% by weight
- Example 16 L, 500 in the same manner as in Example 13 except that P 2 (EBA: 4 fum%) was used as the polylactic acid, and a 180-hole mouthpiece was used, and the discharge amount was changed. A crimped yarn consisting of dtex and 180 filaments of polylactic acid fiber was obtained.
- a crimped yarn and a cartridge made of polylactic acid fiber were obtained in the same manner as in Example 13 except that the round cross-section base was used.
- a crimped yarn carpet made of lactic acid fiber was obtained.
- a crimped yarn cartridge made of polylactic acid fiber was obtained in the same manner as in Example 13 except that only P1 was used as polylactic acid.
- Example 13 1,500 dtex, 18 in the same manner as in Example 13 except that P3 alone (EBA 7% by weight) was used as polylactic acid, and a 180-hole base was used, and the discharge amount was changed. A crimped yarn cartridge made of 0-filament polylactic acid fiber was obtained. The smoke generated during spinning was severe, and the working environment was poor. In addition, yarn breakage during spinning and drawing frequently occurred, and the processability was poor.
- Polylactic acid, P 1 by weight ratio: P 2 3: 1 and so as to Chippupurendo (. E BA 1 wt / 0), 8 hours 1 0 0 ° C, subjected to vacuum drying with stirring
- the chips were charged into a hopper 1, melted and extruded at 220 ° C with an extruder 2, measured by a measuring pump 3, and set in a spin block 4 heated to 220 ° C.
- the molten polymer was guided to the spinning pack 5 placed, and yarn 8 was spun from a die 6 having a hole diameter of 0.3 mm, a hole depth of 0.5 mm, and 36 holes (Fig. 4).
- the residence time of the polymer from melting to spinning was about 10 minutes. There was almost no smoke right under the base. .
- the spun yarn 8 is cooled and solidified by applying cooling air to the yarn at a temperature of 25 ° C and a speed of 25 mZ in a cooling device 7, and is bundled by a lubrication guide 9, and is a polyether.
- System smoothing agent [Butanol (ethylene oxide, propylene oxide) A random adduct, with a weight fraction of ethylene oxide and propylene oxide of 50/50, weight average molecular weight of 1,400]
- An oil solution for spinning containing 85% by weight emulsion, oil component concentration: 15% by weight / 0 ) was applied so that the oil content was 1.0% by weight based on the whole fiber weight.
- the entanglement process was performed in the entanglement device 10 by an air flow having a pressure of 0.05 MPa.
- the first take-up roller 11 1 (spinning speed 5 000 minutes) with a peripheral speed of 5 000 m / 7 minutes and the second take-up roller 12 2 with a peripheral speed 50 2 5 m / min take up the winding speed 4
- a winding device 13 With a winding device 13 at 9 25 m / min and a twill angle of 5.5 °, a winding yarn package 14 of partially oriented undrawn yarn (POY) of 117 dtex and 365 filaments was obtained.
- POY partially oriented undrawn yarn
- the yarn unwound from the winding yarn package 14 is passed through the yarn guides 25a, 25b, and 25c, and the peripheral speed is 42.6. It was supplied from a feed roller 26 for mZ to a contact type false twist heater 27 heated to 130 ° C. Thereafter, twisting was performed by a twisted body 30 having a surface speed (D) of 900 m / min through a cooling plate 29 in which cooling water was circulated through a yarn guide 28. At this time, the twisted body 30 is a triaxial friction false twisting device composed of a single disk, and the first to third disk materials counted from the upstream side in the running direction of the yarn are made of ceramic. And 4th to 10th The discs up to 82 were composed of urethane discs with a hardness of 82 degrees. Then, peripheral speed 6
- the yarn is picked up by the drawing roller 31 at 0 m / min, and the 84 dtex, 36 fiber is passed through the delivery roller 32 and the yarn guides 33 a, 33 b at a peripheral speed of 60 OmZ.
- a package 34 of a false twisted yarn was obtained.
- This fabric was dyed under the same conditions as in Example 1.
- the obtained fabric was supple and soft, yet had sufficient swelling, and had less tingling sensation unique to polylactic acid false twisted yarn, and was an excellent fabric having no staining spots.
- wear resistance was evaluated, it showed excellent wear resistance with little change in the surface.
- a false twist yarn and a dyed fabric made of polylactic acid fiber were obtained in the same manner as in Example 20, except that only P2 was used as polylactic acid.
- the dyed fabric was soft, supple and had a sufficient degree of furnishing, and an excellent fabric with no staining spots was obtained. When the wear resistance was evaluated, there was little change in the surface and good wear resistance was exhibited.
- the dyed fabric was soft, supple, and had sufficient swelling, and an excellent fabric with no staining spots was obtained. In addition, there was little change in the surface where the abrasion resistance was evaluated, indicating good abrasion resistance.
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20, except that only P1 was used as polylactic acid.
- the obtained false twisted yarn had 4 untwisted yarns of 10 m in length, which was somewhat inferior in uniformity.
- the dyed fabrics were also soft and supple and had sufficient lumps, but when they were evaluated for their abrasion resistance, they left traces on the surface and were partially broken. It must not have been.
- False twisted yarns and dyed fabrics were obtained in the same manner as in Example 20, except that P3 alone (7% by weight for £ 88) was used as polylactic acid.
- the dyed fabric was inferior in quality due to severe staining spots.
- the wear resistance was evaluated, there were portions where the wear was severe, and the wear resistance was poor.
- the dyed fabric was soft and supple, had sufficient swelling, and was excellent with no staining spots. When the wear resistance was evaluated, the surface showed little change and showed excellent wear resistance.
- the dyed fabric was soft and supple, had sufficient swelling, and was an excellent one with no staining spots. When the wear resistance was evaluated, it showed excellent wear resistance with little change in the surface.
- the peripheral speed of the first take-up roller is 600 mZ
- the peripheral speed of the second take-up opening is 600 m / min
- the take-up speed of the take-up device is 588 mZ.
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20, except that the peripheral speed of the feed roller was set at 480 mZ and the D / Y was set at 1.7.
- the dyed fabric had excellent swelling, softness, and suppleness, and was free from dyed spots.
- the surface showed almost no change, indicating excellent abrasion resistance.
- the peripheral speed of the first take-up roller is 4300 m / min
- the peripheral speed of the second take-up opening is 4 321 minutes
- the winding speed of the winding device is 4 2 3 5 m / min.
- the false twisting step the false twisted yarn and the twisted yarn were prepared in the same manner as in Example 20 except that the peripheral speed of the feeder was set to 49.6 m / min and the D / Y was set to 1.4. A dyed fabric was obtained. 1135 Both spinning and false twisting processes showed good processability.
- the dyed fabric had good swelling, softness, and flexibility, and had very few stains. When the wear resistance was evaluated, there was almost no change in the surface, indicating excellent wear resistance.
- the peripheral speed of the first take-off roller is 400 mZ
- the peripheral speed of the second take-up port is 400 m / min
- the take-up speed of the take-up device is 394 m. / Min
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the peripheral speed of the buoy roller was set at 400 m / min and D / Y was set at 1.3. Was.
- the dyed fabric had excellent swelling, softness, and suppleness, and had little stain spots. When the wear resistance was evaluated, almost no change in the surface was observed, indicating excellent wear resistance.
- the peripheral speed of the first take-up roller was 35,00 m / min
- the peripheral speed of the second take-up opening was 35,18 m / min
- the winding speed of the take-up device was 3 4
- the false twist yarn and the dyed fabric were prepared in the same manner as in Example 20 except that the peripheral speed of the feed roller was 33 mZ and the D / Y was 0.67. Got.
- the dyed fabric was slightly bloated compared to Example 1.
- the surface was abraded, and the abrasion resistance was slightly inferior to that of Example 1, but was at an acceptable level.
- a polyether-based leveling agent [ptanol (ethylene oxide Z propylene oxide) random adduct with a weight fraction of ethylene oxide and propylene oxide of 550, a weight average molecular weight of 1 False twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the content of D.O.
- the dyed fabric was a good one with excellent swelling, softness and flexibility, and almost no staining spots.
- the wear resistance was evaluated, the surface change was small and good wear resistance was exhibited.
- the boiling water shrinkage of POY made of polylactic acid fiber was 15%.
- the dyed fabric had some spots, but had a good texture with lumps, softness, and flexibility. When the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance.
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20 except that D / Y was 2.33. Was.
- the dyed fabric had good texture, such as lumps and softness, although slight spots were observed.
- wear resistance was evaluated, almost no change in the surface was observed, indicating excellent wear resistance.
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20 except that D / Y was set to 1.08.
- the dyed fabric had some fluff on the fabric surface, but had a good texture, such as lumps and softness. When the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance.
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20 except that 0 / ⁇ was changed to 0.67.
- the dyed fabric had good texture characteristics such as lumps, softness and flexibility.
- the dyed fabric was slightly inferior in softness and flexibility to Example 20. When the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance. '
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the temperature of the temporary combustion heater was set to 144 ° C.
- the dyed fabric has sufficient swelling, softness and suppleness, and high A high quality fabric was obtained.
- the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance.
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the temperature of the false twist heater was changed to 85 ° C.
- the dyed fabric was excellent in swelling feeling, but showed a somewhat coarse hardness. In addition, when the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance. .
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the temperature of the false twist heater was changed to 150 ° C.
- the dyed fabric had a small bulge and a paper-like texture, when the abrasion resistance was evaluated, almost no change in the surface was observed, and the dyed fabric exhibited excellent abrasion resistance.
- the belt was made of nitrile rubber (NBR) with a hardness of 70 degrees, the crossing angle of the belt was 100 °, and the VR was 1.5.
- NBR nitrile rubber
- a false twist yarn and a dyed fabric were obtained in the same manner as in Example 20.
- the dyed fabric was a high-grade product with excellent swelling, softness, and flexibility, without staining spots. When the wear resistance was evaluated, almost no change was observed on the surface, indicating excellent wear resistance.
- the materials of the 4th to 10th discs of the triaxial friction false twist type disk false twisting tool are JISK 6253 type ⁇ except that urethane with a hardness of 76 degrees in the durometer hardness test was used.
- a false twist yarn dyed fabric was obtained in the same manner as in Example 20.
- the dyed fabric was a high-grade product with excellent swelling, softness, and flexibility, with no staining spots. When the wear resistance was evaluated, almost no change was observed on the surface, indicating excellent wear resistance.
- Example 20 In the same manner as in Example 20 except that the fourth to tenth discs of the triaxial friction false twist type disk false twisting device were made of urethane having a hardness of 89 degrees in JISK6253. Thus, a false twist yarn and a dyed fabric were obtained.
- the dyed fabric showed glaring luster due to deformation of the fiber cross-section, and was slightly inferior in quality to Example 20; however, it was excellent in fullness, softness, flexibility, and had no staining spots. . In addition, when the wear resistance was evaluated, almost no change in the surface was observed, indicating excellent wear resistance. ⁇ [Example 4 2]
- the inflammable body is a belt nip type friction false twist device, the belt is made of NBR with a hardness of 62 degrees, and the crossing angle of the belt is 100.
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20, except that VR was set to 1.5.
- the dyed fabric was excellent in swelling, softness, and flexibility, and there was no staining spot.
- the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance.
- Example 20 was repeated except that the twisted body was a belt two-pitch friction false twisting tool, the belt was made of NBR having a hardness of 82 degrees, the crossing angle of the belt was 100 °, and the VR was 1.5. Similarly, false twisted yarn and dyed fabric were obtained.
- the dyed fabric showed a glaring luster due to deformation of the fiber cross section and was slightly inferior in quality to that of Example 20.
- the dyed fabric was excellent in fullness, softness, flexibility, and no dyeing spots.
- the wear resistance was evaluated, almost no change was observed on the surface, indicating excellent wear resistance.
- ethylene bisstearic acid amide (EBA) [namely, “Alflow H—50S” manufactured by Yatsuo Yushi Co., Ltd.] was used. 1 weight added.
- EBA ethylene bisstearic acid amide
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the yarn was supplied from a side feeder 1 provided in the middle of the extruder 2 so as to be / 0 .
- the process passability in the melt spinning, false twisting, twisting and weaving processes was good.
- the residence time of the polymer from the EBA addition position to the spinning was about 9 minutes.
- the false twist yarn b * of the obtained polylactic acid fiber was 0.7, which was smaller than that of Example 20.
- the physical properties of the obtained false twist yarn were as follows: boiling water shrinkage 7.8 ° / 0 , ⁇ value 22%, 90 ° C strength 1.0 c NZ dte X, excellent dimensional stability and winding It showed shrinkage characteristics and heat resistance. Furthermore, the number of untwisted strands was 1 Om, and the crimped form was excellent in uniformity.
- the dyed fabric had good swelling, softness, and flexibility, and had no staining spots. In addition, when the wear resistance was evaluated, almost no change was observed on the surface, indicating excellent wear resistance.
- a powder of ethylene bisstearic acid amide (EBA) [“Alflow H-50S” manufactured by NOF Corporation] was added in an amount of 1 weight.
- EBA ethylene bisstearic acid amide
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that the mixture was supplied to the Extruder 2 after being attached to P1 so as to be / 0 .
- the amount of lubricant varied during the continuous operation in the range of 0.7 to 1.3% by weight, but it passed through the false twisting process, the twisting process, and the weaving process.
- the properties were good.
- the properties of the obtained false twist yarn are boiling water shrinkage ratio 7.8%, CR value 20%, 90 ° C strength 1.Oc NZd tex, excellent dimensional stability and crimping properties. It showed heat resistance.
- the number of untwisted strands was 0 pieces / 10 m, and the crimped form was excellent in uniformity.
- dyed fabrics have excellent swelling, softness and suppleness. Some color spots were observed. When the abrasion resistance was evaluated, almost no change in the surface was observed, indicating excellent abrasion resistance.
- the discharge rate was changed, and a contact-type second heater was installed between the stretching roller 31 and the delivery roller 1 32 in the stretching false twisting device, the second heater temperature was set at 115 ° C, and the stretching roller 31 was connected. Except that the relaxation rate between the delivery roller 32 and 20 was set to 20%, a false twist yarn and dyed fabric of 98 dtex and 36 filaments were obtained in the same manner as in Example 20. '
- the dyed fabric exhibited an excellent texture with less squeaky feeling unique to polylactic acid fiber, while being supple and soft. In addition, it was excellent in color development and no staining spots. In addition, when the friction fastness was measured, almost no change was observed on the surface, indicating excellent wear resistance.
- a non-contact type second heater is arranged between the drawing roller 31 and the delivery roller 32, the second heater temperature is set to 200, and the peripheral speed of the delivery roller is set to 540 m.
- a false twisted yarn and a dyed fabric were obtained in the same manner as in Example 20 except that / min was used.
- the dyed fabric was excellent in softness and suppleness, and had no spots.
- the surface showed almost no change, indicating excellent abrasion resistance.
- the undrawn yarn is combined into a 700,000 dte X tow, stretched 3.2 times in hot water at 80 ° C, and then a nip pressure of 1.2 kg Z cm 2 ( Mechanical crimping was performed using a stuffer box with a pressure of 0.7 kg / cm 2 (0.1 MPa) and a pressure of 0.7 kg / cm 2 (0.07 MPa).
- a relaxing heat treatment was performed at 140 ° C., and after the oil agent was applied, cutting was performed to obtain a polylactic acid short fiber SF1 having a single fiber fineness of 1.5 dte X and a fiber length of 38 mm.
- the short fibers did not have the tingling sensation characteristic of polylactic acid fibers, and were easily unraveled by rubbing raw cotton by hand, and had excellent slipperiness.
- polylactic acid ⁇ 1: ⁇ 2 1: Chippupurendo so that 1 weight ratio (. E beta Alpha 2 wt / 0), 3 Sri tool such that the fibers in the cross-sectional shape is hollow
- a polylactic acid short fiber SF2 was obtained in the same manner as in Example 48 except that an 18-hole die having a G-shaped discharge hole was used and the discharge amount was changed to 3.55 g / min. .
- the short fibers of the obtained polylactic acid fibers had a hollow ratio of 25% in the fiber cross section.
- the raw cotton had slipperiness, lightness, and resilience, and had optimal characteristics for cushioning materials.
- Crimped yarn Carpho's xyl terminal group amount (eq / t) 20 21 23 20 23
- Short polylactic acid fiber SF6 was obtained in the same manner as in Example 48 except that only P1 was used as polylactic acid. Although the obtained polylactic acid short fibers exhibited good yarn physical properties, they had many crimp spots, had a strong tingling feeling unique to polylactic acid, and were poor in slipperiness.
- Short fiber SF8 was obtained in the same manner as in Example 48 except that P5 alone (EBA was 7% by weight) was used as polylactic acid.
- the obtained polydiacid short fibers had insufficient strength, had a strong tingling sensation unique to polylactic acid, and were inferior in slipperiness. Also, the b * value was high and the color was yellowish.
- a sliver consisting only of the polylactic acid short fiber SF1 was supplied to a drawing machine, and doubling and drafting were performed by a roving machine to obtain a roving having a twist of 0.8 times / 2.54 cm.
- this roving was supplied to a spinning machine, and a draft rate of 35 times and a number of twists of 25 times / 2.54 cm were applied to obtain a spun yarn of 40th count (English cotton count).
- This spun yarn had an I-factor of 1.1, very small thickness unevenness, and a strength of 2.1 cN / d'teX, which was practically acceptable.
- there were few twist spots and fluff and there was no processing unevenness and the spun yarn was of good quality.
- a sliver consisting only of polylactic acid short fiber SF 1 and a sliver consisting only of cotton fiber having the same weight per unit length as polylactic acid short fiber SF 1 were simultaneously supplied to the same kneading machine and mixed with sliver.
- a spun yarn having a cotton fiber content of 5-0% by weight was obtained in the same manner as in Example 53.
- a spun yarn was obtained in the same manner as in Example 53 except that polylactic acid short fiber SF6 was used instead of polylactic acid short fiber SF1.
- This spun yarn was inferior to Example 48 in all of unevenness in thickness, strength and quality. Furthermore, the shirts using this spun yarn had spots on the dyeing, had a sense of frustration and were at a level that was not practical. In addition, in a durability test performed after wearing for one month, fluffing, whitening, and shine occurred, and the durability of the product was poor. [Comparative Example 16]
- a spun yarn was obtained in the same manner as in Example 53 except that polylactic acid short fiber SF9 was used instead of polylactic acid short fiber SF1. This spun yarn was inferior to Example 53 in all of unevenness in thickness, strength, and quality.
- a web with a basis weight of 50 g / m 2 was produced using a polylactic acid short fiber SF3 as raw cotton through a fiber opening machine and a parallel card machine.
- the web was passed through a hot-air circulation type continuous dryer and heat-treated at 170 ° C. for 60 seconds to obtain a nonwoven fabric.
- the obtained nonwoven fabric exhibited good physical properties with a tensile strength of 14.2 kg / 5 cm (1395 cm), was small in unevenness in fiber density, and was of high quality.
- a nonwoven fabric was obtained in the same manner as in Example 55, except that SF8 was used as the polylactic acid short fiber.
- This nonwoven fabric has a tensile strength with inferior to 1 1. 3 kg / 5 cm ( lll N / 5 C m)
- Example 5 5 large density unevenness of the fiber was less of a-quality. Observation of the web during the manufacturing process reveals that there are many parts where the raw cotton has not been unraveled. Therefore, it is considered that the weak tensile strength and uneven density of the nonwoven fabric are caused by poor openability of the raw cotton.
- a futon was manufactured using SF2, a short fiber of polylactic acid, as the cotton.
- This cotton pad showed extremely excellent properties such as a bulkiness of 85 cm 3 / g, a compressibility of 55% and a recovery rate of 93%.
- the dispersibility of the short fibers in the futon cover was good, and the product exhibited high quality product characteristics.
- a futon was produced in the same manner as in Example 56 except that SF6 was used as the polylactic acid short fiber of the cotton pad.
- This cotton wool was inferior in bulkiness, having a bulkiness of 47 cm 3 / g, a compressibility of 63%, and a recovery rate of 68%. Further, the cotton inlay had less sensation than the cotton in Example 56, and had a hard touch.
- a board was produced in the same manner as in Example 57, except that SF 6 was used instead of polylactic acid short fiber SF 3 as the binder fiber.
- the board had a flexural strength of 78 j / m, and was inferior in durability to the board of Example 57.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20030791438 EP1548161B1 (en) | 2002-08-30 | 2003-09-01 | Polylactic acid fiber, yarn package, and textile product |
US10/525,092 US20050203258A1 (en) | 2002-08-30 | 2003-09-01 | Polylactic acid fiber, yarn package, and textile product |
KR1020057003091A KR101062831B1 (ko) | 2002-08-30 | 2003-09-01 | 폴리유산섬유, 얀패키지 및 섬유제품 |
DE60333935T DE60333935D1 (de) | 2002-08-30 | 2003-09-01 | Polymilchsäurefaser, garnspule und textilprodukt |
US12/929,139 US8101688B2 (en) | 2002-08-30 | 2011-01-03 | Polylactic acid fiber yarn package, and textile products |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002254201A JP4114443B2 (ja) | 2002-08-30 | 2002-08-30 | 耐摩耗性に優れたポリ乳酸繊維およびその製造方法 |
JP2002/254201 | 2002-08-30 | ||
JP2002/377241 | 2002-12-26 | ||
JP2002377241 | 2002-12-26 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10525092 A-371-Of-International | 2003-09-01 | ||
US11/302,198 Continuation US7696555B2 (en) | 2003-08-29 | 2005-12-14 | Semiconductor device and its manufacture method |
US12/929,139 Continuation US8101688B2 (en) | 2002-08-30 | 2011-01-03 | Polylactic acid fiber yarn package, and textile products |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004020708A1 true WO2004020708A1 (ja) | 2004-03-11 |
Family
ID=31980538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/011135 WO2004020708A1 (ja) | 2002-08-30 | 2003-09-01 | ポリ乳酸繊維、ヤーンパッケージおよび繊維製品 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20050203258A1 (ja) |
EP (1) | EP1548161B1 (ja) |
KR (1) | KR101062831B1 (ja) |
CN (1) | CN100429338C (ja) |
DE (1) | DE60333935D1 (ja) |
TW (1) | TWI321600B (ja) |
WO (1) | WO2004020708A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009023848A2 (en) * | 2007-08-15 | 2009-02-19 | University Of Washington | Method for making shapeable microcellular poly lactic acid articles |
CN100519858C (zh) * | 2004-11-11 | 2009-07-29 | 浙江华孚色纺有限公司 | 玉米纤维纯纺或混纺的混色纺纱线及其生产方法 |
CN103624990A (zh) * | 2013-11-15 | 2014-03-12 | 无锡中科光远生物材料有限公司 | 一种利用聚合物薄膜自卷曲制备纤维材料的方法 |
CN104294384A (zh) * | 2014-09-16 | 2015-01-21 | 河南省龙都生物科技有限公司 | 聚乳酸纤维超速纺丝工艺 |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6740401B1 (en) * | 2002-11-08 | 2004-05-25 | Toray Industries, Inc. | Aliphatic polyester multi-filament crimp yarn for a carpet, and production method thereof |
US7802705B2 (en) * | 2004-07-29 | 2010-09-28 | Magie Pression Co., Ltd. | Method for forming pleat on fabric composed of polylactic acid yarn, and pleated fabric |
US20060257616A1 (en) * | 2005-05-12 | 2006-11-16 | Stowe-Pharr Mills, Inc. (D/B/A Pharr Yarns, Inc.) | Renewable nonwoven carpet |
WO2007029688A1 (ja) * | 2005-09-07 | 2007-03-15 | Suminoe Textile Co., Ltd. | 原着ポリ乳酸捲縮糸及びその製造方法並びにカーペット |
US20070071972A1 (en) * | 2005-09-28 | 2007-03-29 | Mccoy Kay M | Textile fibers having soft hand characteristics and methods of making thereof |
US7666501B2 (en) * | 2005-12-07 | 2010-02-23 | E. I. Du Pont De Nemours And Company | Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) bi-constituent filaments |
CN101070423B (zh) * | 2006-05-08 | 2012-09-05 | 远东新世纪股份有限公司 | 使用聚乳酸组合物制成的成形体与成形体的制造方法 |
US20080087389A1 (en) * | 2006-10-11 | 2008-04-17 | Carol Derby Govan | Biodegradable hospital curtain |
EP2281080B1 (en) * | 2008-05-30 | 2014-03-19 | Kimberly-Clark Worldwide, Inc. | Nonwoven web comprising polylactic acid fibers |
CN101317698A (zh) * | 2008-07-22 | 2008-12-10 | 周婉 | 一种毛衫及其生产工艺 |
CN101713113B (zh) * | 2008-10-06 | 2012-05-23 | 上海水星家用纺织品股份有限公司 | 一种玉米纤维多功能线 |
NL1036418C2 (nl) * | 2009-01-14 | 2010-07-15 | Ten Cate Thiolon Bv | Kunststofvezel alsmede een kunstgrasveld voorzien van een dergelijke vezel. |
KR100993635B1 (ko) * | 2010-05-06 | 2010-11-15 | 대한민국 | 생분해성 수지조성물을 이용한 어망의 제조방법 |
US8828895B2 (en) * | 2010-08-25 | 2014-09-09 | Nonwoven Network LLC | Webs of bi-component and mono-component Co-PLA fibers |
CN102465373B (zh) * | 2010-11-12 | 2016-06-22 | 东丽纤维研究所(中国)有限公司 | 一种加弹丝及其加工方法和用途 |
US9855682B2 (en) | 2011-06-10 | 2018-01-02 | Columbia Insurance Company | Methods of recycling synthetic turf, methods of using reclaimed synthetic turf, and products comprising same |
JP6011343B2 (ja) * | 2011-11-14 | 2016-10-19 | 東レ株式会社 | プレス成型用不織布及びその製造方法並びに成型体の製造方法 |
US9902897B2 (en) | 2013-06-03 | 2018-02-27 | Kureha Corporation | Degradable fiber for use in well treatment fluid, method for manufacturing same, and well treatment method |
CN104278423A (zh) * | 2014-08-27 | 2015-01-14 | 嘉兴润之缘养生文化有限公司 | 一种聚乳酸纤维袜子及其制造方法 |
US20160201231A1 (en) * | 2015-01-09 | 2016-07-14 | Dennis Lenz | Renewably sourced yarn and method of manufacturing same |
US20180355523A1 (en) * | 2015-01-09 | 2018-12-13 | Mill Direct, Inc. | Renewably Sourced Yarn and Method of Manufacturing Same |
KR20160144700A (ko) * | 2015-06-09 | 2016-12-19 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 수세미 |
TWI616566B (zh) * | 2015-08-03 | 2018-03-01 | 展頌股份有限公司 | 尼龍66中空纖維、其製造方法及其生產設備 |
CN105273554A (zh) * | 2015-11-25 | 2016-01-27 | 安徽索亚装饰材料有限公司 | 一种含复合改性丙烯酸树脂乳液涂层的能屏蔽电磁辐射的墙纸 |
MX2019001220A (es) | 2016-08-02 | 2019-07-04 | Fitesa Germany Gmbh | Sistema y proceso para preparar telas no tejidas de acido polilactico. |
US11441251B2 (en) | 2016-08-16 | 2022-09-13 | Fitesa Germany Gmbh | Nonwoven fabrics comprising polylactic acid having improved strength and toughness |
WO2018118682A1 (en) | 2016-12-19 | 2018-06-28 | Lintec Of America, Inc. | Nanofiber yarn spinning system |
KR20180082111A (ko) * | 2017-01-10 | 2018-07-18 | 안병훈 | 미용타월용 복합사의 제조방법 |
KR101978645B1 (ko) * | 2017-01-10 | 2019-05-15 | 안병훈 | 목욕타월용 복합사의 제조방법 |
CN106884226B (zh) * | 2017-03-17 | 2019-06-25 | 宁波三邦超细纤维有限公司 | 有色可降解抗菌聚乳酸弹性纤维及其制备方法 |
CN106868626A (zh) * | 2017-04-08 | 2017-06-20 | 河南省龙都生物科技有限公司 | 一种利用再生聚乳酸切片生产有色短纤维的方法 |
CN107385625A (zh) * | 2017-07-21 | 2017-11-24 | 何炽斌 | 一种可生物降解的吸湿排汗面料的生产方法 |
CN108588897A (zh) * | 2018-04-27 | 2018-09-28 | 仪征市星海化纤有限公司 | 一种化纤复合纤维及其加工方法 |
CN109943994A (zh) * | 2019-04-09 | 2019-06-28 | 龙福环能科技股份有限公司 | 一种聚乳酸地毯的生产方法 |
JP2021085127A (ja) * | 2019-11-29 | 2021-06-03 | セイコーエプソン株式会社 | 繊維成形物の製造方法及び製造装置、並びに結合素材及びその製造方法 |
KR102138634B1 (ko) * | 2020-06-02 | 2020-07-28 | 에콜그린텍(주) | 발수 특성을 가지는 비말 차단 마스크용 생분해성 pla 부직포 및 그 제조방법 |
CN111778611A (zh) * | 2020-07-14 | 2020-10-16 | 深圳市富安娜家居用品股份有限公司 | 一种混纺面料的制作方法 |
JP7600588B2 (ja) * | 2020-09-23 | 2024-12-17 | セイコーエプソン株式会社 | 緩衝材 |
CN112266583A (zh) * | 2020-10-26 | 2021-01-26 | 苏州和塑美科技有限公司 | 一种高强度低成本全生物降解材料的制备方法及其产品 |
CN112680852A (zh) * | 2020-12-23 | 2021-04-20 | 山东利源纤维有限公司 | 一种可生物降解的pbs-bcf地毯纱线 |
CZ2021234A3 (cs) * | 2021-05-14 | 2022-11-23 | Pfnonwovens Holding S.R.O. | Netkaná textilie se zvýšenou pevností |
CN113802229A (zh) * | 2021-08-26 | 2021-12-17 | 润益(嘉兴)新材料有限公司 | 国产畜毛、绒与国产聚乳酸纤维混纺纱及粗纺生产工艺 |
CN113832580B (zh) * | 2021-10-26 | 2024-11-29 | 江苏杜为新材料科技有限公司 | 一种粗旦丝三维卷曲短纤生产系统 |
EP4469627A1 (en) * | 2022-01-27 | 2024-12-04 | TotalEnergies Corbion B.V. | Pla fibres and nonwovens made thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0827363A (ja) * | 1994-07-12 | 1996-01-30 | Mitsui Toatsu Chem Inc | 乳酸系ポリマー組成物 |
JPH08183898A (ja) * | 1994-12-28 | 1996-07-16 | Shimadzu Corp | ポリ乳酸組成物及びその成型品 |
JPH0921018A (ja) * | 1995-07-06 | 1997-01-21 | Toyobo Co Ltd | 生分解性繊維及びこれを用いた不織布 |
JP2001131827A (ja) * | 1999-10-28 | 2001-05-15 | Unitika Ltd | ポリ乳酸系フラットヤーン |
JP2001271224A (ja) * | 2000-03-24 | 2001-10-02 | Toray Ind Inc | 高発色性脂肪族ポリエステル繊維および繊維構造物 |
JP2002180328A (ja) * | 2000-12-13 | 2002-06-26 | Kanebo Ltd | ポリ乳酸繊維 |
JP2003129334A (ja) * | 2001-10-22 | 2003-05-08 | Unitica Fibers Ltd | ポリ乳酸系スリットヤーン |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3308335B2 (ja) | 1993-04-13 | 2002-07-29 | 三井化学株式会社 | 乳酸系ポリマー組成物並びにそのペレット、その成形体およびその成形方法 |
EP0669358B1 (en) * | 1993-09-09 | 2003-11-19 | Kanebo Ltd. | Biodegradable copolyester, molding produced therefrom, and process for producing the molding |
US5593778A (en) * | 1993-09-09 | 1997-01-14 | Kanebo, Ltd. | Biodegradable copolyester, molded article produced therefrom and process for producing the molded article |
JPH08260268A (ja) | 1995-03-28 | 1996-10-08 | Teijin Ltd | ポリエステルシックアンドシンヤーンの仮撚加工方法 |
DE19547028A1 (de) * | 1995-12-15 | 1997-07-17 | Hoechst Trevira Gmbh & Co Kg | Hydrolysebeständige Polyesterfasern und -filamente, Masterbatches und Verfahren zur Hestellung von Polyesterfasern und -filamenten |
JP3411168B2 (ja) | 1995-12-21 | 2003-05-26 | 三井化学株式会社 | 脂肪族ポリエステル成形体の製造方法及びそれにより製造された成形体 |
US6417294B1 (en) * | 1995-12-21 | 2002-07-09 | Mitsui Chemicals, Inc. | Films and molded articles formed from aliphatic polyester compositions containing nucleating agents |
JP3645647B2 (ja) * | 1996-04-05 | 2005-05-11 | トヨタ自動車株式会社 | ポリ乳酸系重合体組成物およびその成型品 |
CN1172037C (zh) * | 1997-05-02 | 2004-10-20 | 卡吉尔公司 | 可降解的聚合物纤维、制备、产品及使用方法 |
JP3462977B2 (ja) | 1997-10-28 | 2003-11-05 | ユニチカ株式会社 | ポリ乳酸繊維の製造法 |
US6114495A (en) * | 1998-04-01 | 2000-09-05 | Cargill Incorporated | Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof |
JP3462983B2 (ja) | 1998-04-10 | 2003-11-05 | ユニチカ株式会社 | ポリ乳酸繊維の製造法 |
WO1999063001A1 (en) | 1998-05-30 | 1999-12-09 | Daicel Chemical Industries, Ltd. | Biodegradable polyester resin composition, biodisintegrable resin composition, and molded objects of these |
JP2000220044A (ja) | 1999-01-28 | 2000-08-08 | Toray Ind Inc | ポリエステル繊維糸条の紡糸方法 |
JP3463597B2 (ja) | 1999-04-02 | 2003-11-05 | 東レ株式会社 | 光沢に優れた脂肪族ポリエステル仮撚糸 |
KR100535862B1 (ko) * | 1999-06-18 | 2005-12-13 | 도레이 카부시키가이샤 | 폴리락트산 수지 및 이를 이용한 섬유제품, 및 섬유제품의제조방법 |
WO2002012395A1 (fr) | 2000-08-02 | 2002-02-14 | Mitsui Chemicals, Inc. | Composition de resine et utilisation de celle-ci |
JP2002129442A (ja) | 2000-10-23 | 2002-05-09 | Toray Ind Inc | 複合仮撚糸およびその製造方法 |
JP2002155437A (ja) | 2000-11-21 | 2002-05-31 | Toray Ind Inc | 脂肪族ポリエステル加工糸 |
JP4586287B2 (ja) | 2001-03-26 | 2010-11-24 | 東レ株式会社 | ポリ乳酸仮撚加工糸とその製造方法 |
JP2002285439A (ja) | 2001-03-27 | 2002-10-03 | Unitica Fibers Ltd | 低摩擦型潜在捲縮繊維およびこれを用いた不織布 |
TWI222475B (en) * | 2001-07-30 | 2004-10-21 | Toray Industries | Polylactic acid fiber |
JP3725464B2 (ja) * | 2001-10-31 | 2005-12-14 | 竹本油脂株式会社 | 生分解性合成繊維フィラメント用油剤及び生分解性合成繊維フィラメントの処理方法 |
CN1490443A (zh) * | 2002-10-14 | 2004-04-21 | 金淑杰 | 生物降解纤维及其制造方法 |
-
2003
- 2003-09-01 WO PCT/JP2003/011135 patent/WO2004020708A1/ja active Application Filing
- 2003-09-01 TW TW92124066A patent/TWI321600B/zh not_active IP Right Cessation
- 2003-09-01 DE DE60333935T patent/DE60333935D1/de not_active Expired - Lifetime
- 2003-09-01 KR KR1020057003091A patent/KR101062831B1/ko active IP Right Grant
- 2003-09-01 US US10/525,092 patent/US20050203258A1/en not_active Abandoned
- 2003-09-01 EP EP20030791438 patent/EP1548161B1/en not_active Expired - Lifetime
- 2003-09-01 CN CNB038201402A patent/CN100429338C/zh not_active Expired - Fee Related
-
2011
- 2011-01-03 US US12/929,139 patent/US8101688B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0827363A (ja) * | 1994-07-12 | 1996-01-30 | Mitsui Toatsu Chem Inc | 乳酸系ポリマー組成物 |
JPH08183898A (ja) * | 1994-12-28 | 1996-07-16 | Shimadzu Corp | ポリ乳酸組成物及びその成型品 |
JPH0921018A (ja) * | 1995-07-06 | 1997-01-21 | Toyobo Co Ltd | 生分解性繊維及びこれを用いた不織布 |
JP2001131827A (ja) * | 1999-10-28 | 2001-05-15 | Unitika Ltd | ポリ乳酸系フラットヤーン |
JP2001271224A (ja) * | 2000-03-24 | 2001-10-02 | Toray Ind Inc | 高発色性脂肪族ポリエステル繊維および繊維構造物 |
JP2002180328A (ja) * | 2000-12-13 | 2002-06-26 | Kanebo Ltd | ポリ乳酸繊維 |
JP2003129334A (ja) * | 2001-10-22 | 2003-05-08 | Unitica Fibers Ltd | ポリ乳酸系スリットヤーン |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100519858C (zh) * | 2004-11-11 | 2009-07-29 | 浙江华孚色纺有限公司 | 玉米纤维纯纺或混纺的混色纺纱线及其生产方法 |
WO2009023848A2 (en) * | 2007-08-15 | 2009-02-19 | University Of Washington | Method for making shapeable microcellular poly lactic acid articles |
WO2009023848A3 (en) * | 2007-08-15 | 2009-05-07 | Univ Washington | Method for making shapeable microcellular poly lactic acid articles |
US8926876B2 (en) | 2007-08-15 | 2015-01-06 | University Of Washington Through Its Center For Commercialization | Method for making shapeable microcellular poly lactic acid articles |
CN103624990A (zh) * | 2013-11-15 | 2014-03-12 | 无锡中科光远生物材料有限公司 | 一种利用聚合物薄膜自卷曲制备纤维材料的方法 |
CN103624990B (zh) * | 2013-11-15 | 2016-04-13 | 无锡中科光远生物材料有限公司 | 一种利用聚合物薄膜自卷曲制备纤维材料的方法 |
CN104294384A (zh) * | 2014-09-16 | 2015-01-21 | 河南省龙都生物科技有限公司 | 聚乳酸纤维超速纺丝工艺 |
Also Published As
Publication number | Publication date |
---|---|
EP1548161B1 (en) | 2010-08-25 |
KR20050058484A (ko) | 2005-06-16 |
TWI321600B (en) | 2010-03-11 |
EP1548161A1 (en) | 2005-06-29 |
US8101688B2 (en) | 2012-01-24 |
CN100429338C (zh) | 2008-10-29 |
KR101062831B1 (ko) | 2011-09-07 |
DE60333935D1 (de) | 2010-10-07 |
US20050203258A1 (en) | 2005-09-15 |
US20110165370A1 (en) | 2011-07-07 |
CN1678777A (zh) | 2005-10-05 |
TW200413583A (en) | 2004-08-01 |
EP1548161A4 (en) | 2008-08-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004020708A1 (ja) | ポリ乳酸繊維、ヤーンパッケージおよび繊維製品 | |
EP3011086B1 (en) | Process for the preparation of a fiber, a fiber and a yarn made from such a fiber | |
US20090068463A1 (en) | Crimped Yarn, Method for Manufacture thereof, and Fiber Structure | |
Moody et al. | Tufted carpet: Textile fibers, dyes, finishes and processes | |
US20190233983A1 (en) | Fiber-filled material and fiber product obtained by using same | |
EP1579040A1 (en) | Staple fibers and processes for making same | |
US20090029164A1 (en) | Conjugate fiber-containing yarn | |
JP4255473B2 (ja) | 縫糸及び布帛縫製品 | |
JP4100063B2 (ja) | 複合繊維および繊維構造体 | |
JP2004277931A (ja) | ポリ乳酸繊維および、それを用いた繊維構造物 | |
JP4114443B2 (ja) | 耐摩耗性に優れたポリ乳酸繊維およびその製造方法 | |
JP2007239146A (ja) | 防透性に優れた複合仮撚加工糸及びその製造方法 | |
JP2004204406A (ja) | ポリ乳酸短繊維およびそれからなる繊維構造体 | |
JP4254368B2 (ja) | ポリ乳酸捲縮糸の製造方法、並びにカーペット | |
JP6287041B2 (ja) | 織編物 | |
JP3895190B2 (ja) | カットパイル織編物用ポリエステル複合仮撚加工糸およびその製造方法 | |
JP4075611B2 (ja) | カーペット用ポリ乳酸捲縮糸 | |
JP4059192B2 (ja) | ポリ乳酸仮撚糸およびその製造方法 | |
Chatterjee | Continuous filament and texturized synthetic yarns | |
JP5264599B2 (ja) | カーペット | |
JP4783105B2 (ja) | カーペット | |
JP2003306848A (ja) | 涼感性に優れた衣料用編織物 | |
JP2005240218A (ja) | ポリ乳酸中空捲縮糸およびそれを用いたカーペット | |
JP2024125535A (ja) | ポリブチレンテレフタレート繊維 | |
JP2006316357A (ja) | サキソニ−撚り捲縮糸およびカットパイルカ−ペット |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN ID KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003791438 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10525092 Country of ref document: US Ref document number: 1020057003091 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038201402 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057003091 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2003791438 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11302198 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 11302198 Country of ref document: US |