TW413706B - The process for manufacture of micro slit polyester fabric - Google Patents

Abstract

The process for manufacture of micro slit fiber via blending of water soluble polyester and polyethyleneterephthalate chip, spinning at normal polyester spinning conditions follow by false twisting and weaving process. Finally treat the woven or knitted fabric by alkali extraction to remove water soluble polymer on fiber surface to form random micro slit at the fiber surface for improvement of hand feeling and dye ability.

Description

413706 V. Description of the invention (i) Field of the invention The present invention is a polyester fiber and a method for fabric manufacturing the same, which cause most irregular slender slits on the surface of the fiber. BACKGROUND OF THE INVENTION Conventional synthetic fibers, especially those made by melt-spinning, such as polyester fibers, nylon fibers, etc. 'Since the fiber surface is very smooth, it has a smooth feel like wax and has the characteristics of dryness and abrasion resistance, blinking Compared with natural wool and silk, the visual effect is lighter, and it is difficult to achieve the effect of heavy dyeing. 'In order to improve the above-mentioned problems, many methods have been proposed; for example, as described in US No. 541 82: uniformly mixing silicon dioxide particles, spinning them, and then dissolving the particles on the surface by an appropriate method. Fiber with fine uneven structure. Available for another example: Introduction to new fiber materials (Compiled and published by Takeshi Miyamoto, Ben ^ + Bump Textile Industry Research Center, 86 years old, also written by China, as described in Section 1.1 of China: Low Temperature Plasma on Fiber Surface Treatment month) No. 6 in the book; all are different from the present invention for improved methods. Summary of the invention The invention is to use water-soluble polyester and polyethylene terephthalate to undergo false twisting and weaving. Finally, the mixture is spun with alkali, and the water-soluble polyester on the surface is dissolved. A kind of polymer solution = the irregular thin slits on the surface of the fiber caused by the fibers, the difference in freshness, both to improve the fabric feel and dyeing

41370 $ 5. Description of invention (2) Manufacturing method of nature. Detailed description of the invention Traditional synthetic fibers such as polyester fibers, nylon fibers, etc., because the fiber surface is very smooth and has a smooth feel like wax and has abrasion resistance. It has a flickering visual effect under strong light. Compared with wool and silk, it is not easy to achieve the effect of heavy dyeing. After extensive research and discussion, the inventor of the present invention found that modifying the surface of the fiber into an irregular slit shape can effectively improve the above problems. The object of the present invention is to provide a manufacturing method which can effectively improve the light reflection characteristics and smooth feel of polyester fibers. Another object of the present invention is to provide a stable and suitable method for industrial production to manufacture surface slit fibers. In the present invention, two kinds of polymers are false-twisted and then subjected to liquid weight reduction processing, so that the surface of the fiber is produced with the acid (acid) and ethylene diethylene terephthalate in the amount of ethylene glycol, phthalic acid and ethyl When the fiber is spinning, a part of water-soluble polyester polymer is mixed and melted and spun together. The spun silk can be woven and dyed by ordinary methods. Finally, different polymers are used in sodium oxide or other alkali dissolution. The solubility in alkali solution is different, and irregular slits are formed. Polycool is ethylene glycol or terpolymer with terephthaUc alcohol (ethylene glyC〇1) as the main monomer raw material. Its polymerization method is mortaric acid, Mole ratio is !; first take appropriate. 1 j 1, 8 to 1, the glandular diol was stirred and mixed to form a slurry λ ^ &

CA surface slit polyester woven fabric manufacturing method.ptd

413708 V. Description of the invention (3) ^ The reaction tank is gradually heated to 250 ° C, and the fermentation reaction is performed under 2.5 atmospheric pressure. 'The by-product water produced by the reaction reaches 90% of the theoretical output. In the above case, the pressure of the esterification reaction tank is gradually released to normal pressure, that is, the esterification reaction is completed. The polymerization reaction catalyst was added to the esterified product of the completion of the chemical reaction. Its content was 0.02% by weight of terephthalic acid, and the temperature of the reactant was gradually increased to 280 ~ 2. At the same time, at 95 t, the vacuum degree of the reaction tank was gradually lowered to below 1 meter of water column, and the reaction was completed when the current of the motor of the blender increased to an appropriate value. Stop the stirring at this time and discharge the polymer in the reaction tank under nitrogen pressure. Cool the water tank and then pelletize with a pelletizer to obtain a polyester polymer. 60〜1. 65。 Polyester polymers generally suitable for spinning relative viscosity range of 1. 60 ~ 1. 65. The main chemical structure of polyethylene terephthalate is' [〇CH2CH20-〇CCsH4CO]-propylene glycol and succinic acid added at the initial stage of Sg polymerization or polymerization reaction not exceeding 15% of mol terephthalate ^ 15 Alcohol, hexanediol, di: diol, 'polypentaerythritol, isophthalic acid' adipic acid are used as modifiers. Often the analysis method of relative viscosity is π: the substance is dissolved in the weight ratio of PAN, the mixed solution of tetrachloroethane is dissolved, and the degree is especially 0.1 g / ml. Use a capillary diameter 0.95 burk '(Ubbelohde type) viscometer at Celsius

413706 V. Description of the invention (4) Measure the relative viscosity of the time when the solution and the blank solvent pass through the constant temperature bath at 20.0. 0 ± 0.05 ° C = solution pass time / solvent pass time. The so-called water-soluble polyester is mainly composed of terephthalic acid and ethylene glycol, and 5-sodium sulfo bis (/ 5_hydroxyethyl) isophthalate) is a water-soluble polyester copolymer which is a water-soluble modifier. The chemical structure of di-sodium 5-sulfoisophthalic acid dihydrogen ethyl ester is h〇ch2ch2o-〇c-c6h3-co-〇ch2ch2oh

I S03Na is often sold commercially in a mixed solution containing 40% by weight of the above compound and 60% by weight of ethylene glycol. The manufacturing method of water-soluble polyester is similar to the aforementioned method of manufacturing poly (ethylene terephthalate). When the slurry is prepared, it will be equivalent to sodium 5-sulfonic acid isophthalate with a mole number of 6, 4 ~ 25¾. A water-soluble polyester can be obtained by mixing di-0-hydroxyethyl diformate with terephthalic acid and ethylene glycol to form a slurry, and then polymerizing the same using the aforementioned manufacturing method of polyethylene terephthalate. In addition, glycerol, butanediol, hexanediol, pentaerythritol, diethylene glycol, polyethylene glycol, isopropyl alcohol, butylene glycol, butanediol, hexanediol, pentaerythritol, but

CA surface slit polyester fiber fabric manufacturing method · ptd page 7 413706

V. Description of the invention (5) This monocarboxylic acid, agent. The simple test method for the water solubility of polyvinegar is to continue to add water in the hot water of Liufo. In the case of i-hour, the polyvinegar is placed in the water-soluble polyvinegar after it has been turned into white ... It is lost and the water is transparent: i ΐ ::: Spinning works can be performed by mixing acid ethylene glycol and water-soluble polyacetate at 120 ~ i9 ° ° C, and the mixed particles are added to the press at ^ ~ 29th generation for melting. After being cooled and solidified, the wire is finally wound up at a speed of 2500 to 3500 meters per minute to obtain a so-called semi-extended wire. The above-mentioned semi-stretched yarn can be processed by friction-type false twisting machine or needle-type false twisting machine. The gram / litre aqueous solution was subjected to weight reduction processing at 0 ° C for β minutes, and when the weight reduction rate was 5 to 30%, surface slit fibers were obtained. The calculation method of the weight loss rate is the weight loss rate (%) xl () {) W 0 = absolute dry weight before lye treatment = absolute dry weight after lye treatment Weight measured after drying in an oven. Dyeing method of garter is

Manufacturing method of CA surface slit polyester fiber fabric. Ptd Page 8 413706 V. Description of the invention (6) '^ Bath ratio 1: 1 5 Add the following three disperse dyes to prepare N-Blue RSF Co., Ltd. 0.44% Suzhou Rulin Chemical Co., Ltd. Rubine BBL 0.24% Tai Tang Industrial Co., Ltd. Yellow SE4GT 0.22% Stained at 130 C for 60 minutes and then washed with water and dried. Chromaticity measurement The color depth of the garter or fabric is measured by the color difference model ND-1001DP, manufactured by Japan Electric Color Industry Co., Ltd., placing the garter double layer on the light source & The white L value and the yellowness b value of the sample can be obtained by comparing the background coverage with the white standard swatch. A lower whiteness L value indicates a darker or darker sample. ', Example 1 In a 3 liter reactor with a stirrer, rectification tower, condenser, and collection tank, 740 g of p-dibenzoic acid, 180 g of ethylene glycol, and 5 to sodium sulfonate were added. 440 g of a 40% ethylene glycol solution of diling-argonyl ethyl dicarboxylate and 0.4 g of antimony trioxide. The esterification reaction was performed under the reaction conditions of 25 ° C and 2.5 atmospheres. After two hours, the reactor pressure was gradually reduced to normal pressure until the weight of the crane output reached 11% of the theoretical distilled water. 4 grams of sodium triacetate sodium acetate in 〇g of ethylene glycol gradually raised the temperature of the reactant to 2 85 ° C while turning on the vacuum pump to gradually reduce the reactor vacuum degree to carry out the polymerization reaction. After 3 hours, the vacuum degree dropped to Below 1 mmHg, the current of the stirrer motor rises significantly, at this time, the stirring is stopped to terminate the reaction.

C: \ Surface slit polyester fiber fabric manufacturing method.ptd page 9 413706 V. Description of the invention (7) '' The polymer is discharged under nitrogen pressure, cooled by ice water and pelletized to obtain a pillar with a diameter of 3 mm. The particles are named polymer formazan. The relative viscosity of polymer A is 1. 229 »'Take a few particles of polymer A and place them in 0.3 liters of room temperature cold water. After standing for 24 hours, the diameter of the particles will increase several times and change from transparent to white. After stirring with a glass rod for one minute, the white object was dispersed in water and disappeared. The water changed from transparent to milky white, and the polymer nail was completely dissolved in cold water. Another 20 grams of polymer nail A was placed in a plastic bag of 10 cm wide by 15 cm high. 'After standing at room temperature for 24 hours, the particles of polymer nail A were aggregated into a large piece, which could not be mixed with polyester for processing. . Example 2 An experimental factory reactor with a mixer, rectification tower, condenser and collection tank with a volume of 140 liters was charged with 3,2 kg of parabendicarboxylic acid, 9 kg of ethylene glycol, and 5-sulfonic acid. 17'8 kg of a 40% ethylene glycol solution of sodium dihydrooxyethyl isophthalate, pre-dissolved in 2 kg of ethylene glycol triacetate sodium acetate 163 g, and antimony trioxide 20 g . The esterification reaction was performed under the reaction conditions of 250 t 2.5 atmosphere, and after two hours, the reactor force was gradually reduced to the point where the amount of distillate to be distilled at normal pressure reached 丨 丨 0% of the theoretical distillate water. The reaction was fed to the polymerization reactor under nitrogen pressure. The poly two reactor is equipped with a stirrer, a condenser, a glycol collection tank and a vacuum evacuation Q machine. The reactor is heated so that the temperature of the reactants gradually rises and turns on at the same time = the gas generator gradually decreases the reactor vacuum to perform the polymerization reaction. After 3 hours = & air pressure drops below the millimeter recording column, the temperature rises to 280t, and the stirrer stirs.

413706 Five 'invention description (8) ^ flow significantly increased, at which point the reaction was terminated.胄 The reactor uses I gas to discharge the polymer Q. The polymer is cooled in a water tank and pelletized by a pelletizer to obtain columnar particles with a diameter of 3 mm and a length of 3 mm. The polymer is named Polymer B. Take a few particles of polymer and place them in 0.3 liters of cold water at room temperature. After standing for 24 hours, the particle diameter does not change and the cold water is still clear and colorless. The polymer B does not dissolve in cold water. Take 0.3 liters of water and add it to a 0.5 liter capacity glass-breaking beaker. Boil the water with a hot plate until bubbles with water vapor continue to form. At this time, the water temperature is above 90 ° C. The polymer particles were placed in this boiling water. After boiling for 20 minutes, it was observed that the diameter of the particles began to increase and changed from transparent to white. After another 30 minutes, the 'white object was dispersed in water and disappeared. The water changed from transparent to milky white' and the polymer B was soluble in boiling water. Example 3 9 kg of polymer B was placed in a vacuum oven and dried for 24 hours. In addition, 5 丨 kg of dried polyester granules manufactured by Zhongxing Textile Co., Ltd. have been commercialized. At the same time, a double-cone mixer with a capacity of 400 liters has been added. After 1 hour of stirring, the particles have been mixed. A screw diameter of 40 mm was added to an extruder made by Nippon Steel Co., Ltd. to perform melt-spinning at 290 ° C. The spun silk was cooled and solidified by cooling air, and manufactured by Toray Corporation TW5 03MI The coiler is wound into a semi-extended wire. The above-mentioned semi-stretched yarn was processed by a HTS_1500 frictional false twisting machine manufactured by Teijin Co., Ltd. to produce 7 5 denier / 36 processed yarns, and the processed yarns were woven into a garter to be subjected to weight reduction processing with an aqueous sodium hydroxide solution. 1 Hours, reduction rate 20.

C: \ Manufacturing method of surface slit polyester fiber fabric.ptd p. 413706 V. Description of the invention (9) 1% ′ Observe the fibers with most irregular slits on the surface by electron microscope. The garter can be dyed under ordinary polyester dyeing conditions under high temperature and high pressure to obtain a deeper color. Comparative Example 1 The number of Daniels in a commercial production was the same as that in Example 3. Zhongxing Textile Co., Ltd. manufactured commercially processed yarns that had undergone false twist processing. The processed silk was woven into a garter, and after undergoing the same treatment process as in Example 3, no fissures were observed on the surface of the fiber under an electron microscope, and the garter dyeing was not improved. Comparative Example 2 Take 9 kg of cationic dyeable polyester pellets made of Zhongxing Textile Co., Ltd.'s sodium 5-sulfonate isophthalate dihydroxyethyl ester with a Molar number of 15% of Molar number terephthalate Drying, another 51 kg of dried polyester pellets manufactured by Zhongxing Textile Co., Ltd. is commercially produced. At the same time, a double-cone type mixer with a capacity of 400 liters was added, and after 1 hour of stirring and mixing, the mixed particles were added to an extruder with a screw diameter of 40 mm at a temperature of 29 t; Melt spinning, the spun silk is cooled and solidified by cooling air, and then wound into a semi-extended yarn. = The above semi-stretched yarn is rubbed by a rubbing false twister and then woven into a weave. After the same treatment as in Example 3, a slight uneven effect on the surface of the fiber can be obtained. Blinking visual effects None & 4 divisions

c: \ Surface slit polyester fiber fabric manufacturing method · ptd Page 12 4ί37〇6 Description of the invention (List of the above examples are as follows) Table 1: Example 3 Comparative Example 1 Comparative Example 2 (Invention) ( Polyester) (polyester + cationic dyeable polyester) Weight loss rate 20.1% 8.8 ° /. 10.9% Chroma L value 22.3 24,5 23. 1 Chroma b value 0.9 2. 1 1.7 Feels soft and astringent Smooth and smooth Microscopic observation Most of the slits A few dents Concave and convexity Not obvious Bright light Illumination No reflective bright spots Flicker Bright spots flicker Highlights

C: \ Surface slit polyester fiber fabric manufacturing method.ptd page 13

Claims (1)

87120476 Amendment date of 4137〇 6 、 Scope of patent application 1 A method for manufacturing surface slit polyester fiber fabric, which is mainly based on water-soluble polyester and general After the polyester is mixed, it is placed in the extruder at the same time, and after spinning, winding, and then false twisting and weaving, the fabric is finally processed by alkali reduction to a considerable reduction rate, resulting in the surface of most irregular slits on the fiber surface. Slit fiber fabric manufacturing method. 2. The manufacturing method according to item 1 of the scope of patent application, wherein the so-called slits are elongated holes having a length of 0.5 to 10 microns in the direction of the fiber axis and a width of 0.1 to 1 micron in the direction of the fiber axis. 3. The manufacturing method as described in item 1 of the scope of patent application, wherein the so-called water-soluble polyester is mainly composed of terephthalic acid and ethylene glycol, and sodium 5-sulfonate dibenzyl dicarboxylate di / 3-hydrogen Ethyl ethyl ester is a water-soluble polyester copolymer which is a water-soluble modifier. 4 · The manufacturing method as described in item 1 of the scope of the patent application, wherein the so-called water-soluble polyester is terephthalic acid and ethylene glycol as the main component and sodium 5-sulfonate dibenzyl dicarboxylate-hydroxyl Ethyl ester is a water-soluble polyester copolymer with diacid or diol as an additive. Additives can be propylene glycol, butanediol, hexanediol, pentaerythritol, diethylene glycol, polyethylene glycol, isophthalic acid, adipic acid, not more than 15% of the mole of terephthalic acid , 2, 6 naphthalenedicarboxylic acid. 5. The manufacturing method described in item 1 of the scope of patent application, wherein the so-called water-soluble C: \ Manufacturing method of surface slit polyester fiber fabric.ptc Page 14 2000.08. 07.014 87120476 4137〇 Amended on June 6, 2006 Patent application scope 1 A manufacturing method of surface slit polyester fiber fabric, mainly based on polymer 5 to 30% of the total weight of water-soluble polyester mixed with ordinary polyester 'is placed in the extruder at the same time, after spinning, winding and then false twisting and weaving works' Surface slit fiber fabric manufacturing method in which the fabric is processed by alkali reduction to a considerable reduction rate to cause most irregular slits on the fiber surface. 2. The manufacturing method according to item 1 of the scope of patent application, wherein the so-called slits are elongated holes having a length of 0.5 to 10 microns in the direction of the fiber axis and a width of 0.1 to 1 micron in the direction of the fiber axis. 3. The manufacturing method as described in item 1 of the scope of patent application, wherein the so-called water-soluble polyester is mainly composed of terephthalic acid and ethylene glycol, and sodium 5-sulfonate dibenzyl dicarboxylate di / 3-hydrogen Ethyl ethyl ester is a water-soluble polyester copolymer which is a water-soluble modifier. 4 · The manufacturing method as described in item 1 of the scope of the patent application, wherein the so-called water-soluble polyester is terephthalic acid and ethylene glycol as the main component and sodium 5-sulfonate dibenzyl dicarboxylate-hydroxyl Ethyl ester is a water-soluble polyester copolymer with diacid or diol as an additive. Additives can be propylene glycol, butanediol, hexanediol, pentaerythritol, diethylene glycol, polyethylene glycol, isophthalic acid, adipic acid, not more than 15% of the mole of terephthalic acid , 2, 6 naphthalenedicarboxylic acid. 5. The manufacturing method described in item 1 of the scope of patent application, wherein the so-called water-soluble C: \ Surface slit polyester fiber fabric manufacturing method.ptc page 14 2000.08. 07.014 ------ tE 87 丨 2047 (^ 1370 苏 j_a_ VI. Application for special ^^-? Ester is insoluble in room temperature "Cold water" is a water-soluble polycopolymer that is soluble in normal pressure boiling water. The manufacturing method described in item 3 of the scope of the patent application, wherein the so-called water-soluble agent may be 5-sodium sodium metabenzene 'formazan 1/3 ~ Hydroxyethyl ester, 5-5-sodium isophthalic acid dimethyl, 5-sodium isophthalic acid dibenzoic acid, or a mixture thereof. The manufacturing method described in item 1 of the scope of patent application, The so-called general polyester is a polyester copolymer containing paraben and glyoxal as the main components. The manufacturing method described in item 1 of the patent application scope, wherein the so-called general polyester is terephthalic acid and Polyester copolymer with ethylene difluoride as a main component and a small amount of a dicarboxylic acid or a diol as an additive. The additive may be propylene glycol, butanediol, but not more than 15% of the mole of terephthalic acid. Hexylene glycol, pentaerythritol, isophthalic acid, adipic acid, 2, 6 naphthalenedicarboxylic acid. 9 · As described in item 1 of the scope of patent application Five to thirty percent of the fabric before ft manufacturing method, wherein a so-called considerable reduction processing of the reduction rate. 2000.08. 07.015