Matte colored elastic fiber and manufacturing method thereof

Abstract

The invention discloses a matte colored elastic fiber and a manufacturing method thereof, the matte colored elastic fiber is made of polyester POY filaments, and the polyester POY filaments are composed of full-dull porous POY and cationic porous POY. According to the matte colored elastic fiber and the manufacturing method thereof, the full-dull porous POY and the cationic porous POY are adopted as raw materials, so that the advantages of a polyester elasticizing process flow are kept, and the linen-like effect of the matte colored elastic fiber can be effectively reflected.

Description

Technical Field

[0001] The invention relates to the technical field of chemical fibers, and in particular to a matte colored elastic fiber and a manufacturing method thereof. Background Art

[0002] At present, the polyester chemical fiber market is developing rapidly and the market competition is fierce. In order to create benefits and survive in the rapidly developing market, we must find ways to develop high value-added products, differentiated products, and simulated products. Therefore, it is urgent to develop fibers that can replace natural cotton, linen and other fabrics to increase product added value and improve economic benefits.

[0003] Based on the above situation, the present invention proposes a matte colored elastic fiber and a manufacturing method thereof, which can effectively solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a matte colored elastic fiber and a method for manufacturing the same. The matte colored elastic fiber and the method for manufacturing the same adopt full matte porous POY and cationic porous POY as raw materials, which not only maintains the advantages of the polyester texturizing process, but also can effectively reflect the linen-like effect of the matte colored elastic fiber.

[0005] The present invention is achieved through the following technical solutions:

[0006] A matte colored elastic fiber is made of polyester POY filaments, wherein the polyester POY filaments are composed of full matte porous POY and cationic porous POY.

[0007] The purpose of the present invention is to provide a matte colored elastic fiber and a method for manufacturing the same. The matte colored elastic fiber and the method for manufacturing the same adopt full matte porous POY and cationic porous POY as raw materials, which not only maintains the advantages of the polyester texturizing process, but also can effectively reflect the linen-like effect of the matte colored elastic fiber.

[0008] A method for manufacturing matte colored elastic fiber comprises the following steps:

[0009] Step S1: mixing the full matte porous POY and the cationic porous POY to form a composite fiber raw material with a specific twist direction, wherein the cationic raw material has an "S" type twist direction and the full matte raw material has a "Z" type twist direction;

[0010] Step S2: Preliminary stretching of the composite fiber raw material is performed by a roller, and the linear speed of the roller is controlled to be 1.2 to 1.5 times the raw material feeding speed;

[0011] Step S3: using a specific spinning rod guide to guide the composite fiber raw material, the spinning rod guide has at least two guiding points, and the distance between the guiding points is 1 / 4 to 1 / 3 of the width of the raw material;

[0012] Step S4: feeding the composite fiber raw material into a static mixer for mixing, wherein a spiral mixing element is provided in the static mixer;

[0013] Step S5: eliminating the twist of the composite fiber raw material by a twist stopper, wherein the rotation speed of the twist stopper is synchronized with the linear speed of a roller;

[0014] Step S6: sending the composite fiber raw material into a double-slot deformation hot box for deformation treatment, and the temperature of the double-slot deformation hot box is controlled at 150° C. to 200° C.;

[0015] Step S7: using a cooling plate to cool the deformed composite fiber raw material, and the surface temperature of the cooling plate is controlled at 10° C. to 30° C.;

[0016] Step S8: alternately false twisting the composite fiber raw material by S twist and Z twist false twisters, the rotation speed of the false twister is 2 to 3 times the linear speed of a roller;

[0017] Step S9: further stretching the false-twisted silk by the second roller, the linear speed of the second roller being 1.5 to 2 times the linear speed of the first roller;

[0018] Step S10: feeding the stretched silk into the main network for network reinforcement;

[0019] Step S11: using the auxiliary roller to perform auxiliary stretching of the wire, the linear speed of the auxiliary roller is synchronized with the second roller;

[0020] Step S12: sending the silk into a shaping hot box for shaping treatment, the temperature of the shaping hot box is controlled at 165°C to 205°C, and the shaping time is 30 seconds to 60 seconds;

[0021] Step S13: final stretching is performed by three rollers, and the linear speed of the three rollers is 1.2 to 1.8 times that of the two rollers;

[0022] Step S14: using an oil tanker wire guide to oil the wire, the oil volume control accuracy of the oil tanker wire guide is ±0.1%;

[0023] Step S15: Winding the silk into finished silk, with the winding speed matching the three-roller line speed;

[0024] Step S16: Inspect and package the finished silk, including the diameter, strength, elongation and surface quality of the silk.

[0025] Preferably, the temperature of the double-groove deformation hot box is 175°C.

[0026] Preferably, the temperature of the shaping hot box is 185°C.

[0027] Preferably, the draft ratio between the first roller and the second roller is 1.70.

[0028] Preferably, the pressure of the main network is 0.35 MPa.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] The matte colored elastic fiber and the manufacturing method thereof adopt full matte porous POY and cationic porous POY as raw materials, which not only maintains the advantages of the polyester texturizing process flow but also can effectively reflect the linen-like effect of the matte colored elastic fiber. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific examples.

[0032] Embodiment 1:

[0033] The invention provides a matte color elastic fiber, which is made of polyester POY filaments. The polyester POY filaments are composed of full-dull porous POY and cationic porous POY.

[0034] Embodiment 2:

[0035] The invention provides a matte color elastic fiber, which is made of polyester POY filaments. The polyester POY filaments are composed of full-dull porous POY and cationic porous POY.

[0036] A method for manufacturing matte colored elastic fiber comprises the following steps:

[0037] Step S1: mixing the full matte porous POY and the cationic porous POY to form a composite fiber raw material with a specific twist direction, wherein the cationic raw material has an "S" type twist direction and the full matte raw material has a "Z" type twist direction;

[0038] Step S2: Preliminary stretching of the composite fiber raw material is performed by a roller, and the linear speed of the roller is controlled to be 1.2 to 1.5 times the raw material feeding speed;

[0039] Step S3: using a specific spinning rod guide to guide the composite fiber raw material, the spinning rod guide has at least two guiding points, and the distance between the guiding points is 1 / 4 to 1 / 3 of the width of the raw material;

[0040] Step S4: feeding the composite fiber raw material into a static mixer for mixing, wherein a spiral mixing element is provided in the static mixer;

[0041] Step S5: eliminating the twist of the composite fiber raw material by a twist stopper, wherein the rotation speed of the twist stopper is synchronized with the linear speed of a roller;

[0042] Step S6: sending the composite fiber raw material into a double-slot deformation hot box for deformation treatment, and the temperature of the double-slot deformation hot box is controlled at 150° C. to 200° C.;

[0043] Step S7: using a cooling plate to cool the deformed composite fiber raw material, and the surface temperature of the cooling plate is controlled at 10° C. to 30° C.;

[0044] The surface temperature of the cooling plate is controlled at 10°C to 30°C, which effectively and quickly cools the deformed fibers, helps stabilize the fiber structure, and improves production efficiency.

[0045] Step S8: alternately false twisting the composite fiber raw material by S twist and Z twist false twisters, the rotation speed of the false twister is 2 to 3 times the linear speed of a roller;

[0046] The alternating false twisting of the S-twist and Z-twist false twisters enhances the elasticity and recovery of the fiber while avoiding fiber damage caused by excessive stretching.

[0047] Step S9: further stretching the false-twisted silk by the second roller, the linear speed of the second roller being 1.5 to 2 times the linear speed of the first roller;

[0048] Step S10: feeding the stretched silk into the main network for network reinforcement;

[0049] Step S11: using the auxiliary roller to perform auxiliary stretching of the wire, the linear speed of the auxiliary roller is synchronized with the second roller;

[0050] Step S12: sending the silk into a shaping hot box for shaping treatment, the temperature of the shaping hot box is controlled at 165°C to 205°C, and the shaping time is 30 seconds to 60 seconds;

[0051] Step S13: final stretching is performed by three rollers, and the linear speed of the three rollers is 1.2 to 1.8 times that of the two rollers;

[0052] Step S14: using an oil tanker wire guide to oil the wire, the oil volume control accuracy of the oil tanker wire guide is ±0.1%;

[0053] The oil volume control accuracy of the oil wheel yarn guide is ±0.1%, which ensures the antistatic property and softness of the fiber and improves the processing performance and feel of the fiber.

[0054] Step S15: Winding the silk into finished silk, with the winding speed matching the three-roller line speed;

[0055] Step S16: Inspect and package the finished silk, including the diameter, strength, elongation and surface quality of the silk.

[0056] Fully matt porous POY and cationic porous POY are made of polyethylene terephthalate, TIO2, sodium dimethyl phthalate-5-sulfonate (SIPM) and ethylene glycol (EG) as raw materials. The EG solution of sodium dihydroxyethyl isophthalate-5-sulfonate (SIPE) is prepared by ester exchange reaction, and is added into the polyester reaction system as the third monomer by online addition in the second esterification reactor. Cationic dyeable polyester (CDP) is further prepared as cationic raw material through condensation reaction. The processed raw material has stable quality, ensuring softness, comfort and good color and light perception.

[0057] The physical properties of the 300D matte colored elastic fiber prepared by this method are as follows: fineness: 333dtex; network degree: 92 pieces / m, elongation at break: 19.05%; oil content: 3.85%; curl shrinkage: 9.5%, curl stability: 75%; boiling water shrinkage: 3.2%; strength: 3.0cN / dtex. This elastic matte colored elastic fiber can be widely used in weaving processes such as water jet and air jet. After dyeing and finishing with disperse dyes, the woven cloth has a soft feel, dull color, and good shading effect. Due to the presence of cations, the fiber has a bright color and a comfortable and full feel.

[0058] Furthermore, in another embodiment, the temperature of the double-groove deformation hot box is 175°C.

[0059] Further, in another embodiment, the temperature of the shaping heat box is 185°C.

[0060] The temperatures of the double-slot texturing heat box and the setting heat box are precisely controlled at 175°C and 185°C respectively. These optimized temperature settings help the fiber obtain the ideal structure and performance during the texturing and setting process.

[0061] Further, in another embodiment, the draft ratio between the first roller and the second roller is 1.70.

[0062] The line speed control of the first and second rollers, as well as the specific draft ratio (1.70), ensures the uniformity and consistency of the fiber during the drawing process, thereby improving the strength and elongation of the fiber.

[0063] Further, in another embodiment, the pressure of the main network is 0.35 MPa.

[0064] The spiral mixing element in the static mixer and the 0.35MPa pressure control of the main mixer achieve uniform mixing of the two POY materials, providing a basis for the manufacture of high-quality matte colored elastic fibers.

[0065] According to the description of the present invention, those skilled in the art can easily manufacture or use the matte colored elastic fiber and the manufacturing method of the present invention, and can produce the positive effects described in the present invention.

[0066] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A matte colored elastic fiber made of polyester POY filament, characterized by: The polyester POY filaments are composed of full-dull porous POY and cationic porous POY.

2. The method for producing matte colored elastic fiber according to claim 1, characterized in that: The following steps are involved: Step S1: mixing the full matte porous POY and the cationic porous POY to form a composite fiber raw material with a specific twist direction, wherein the cationic raw material has an "S" type twist direction and the full matte raw material has a "Z" type twist direction; Step S2: Preliminary stretching of the composite fiber raw material is performed by a roller, and the linear speed of the roller is controlled to be 1.2 to 1.5 times the raw material feeding speed; Step S3: using a specific spinning rod guide to guide the composite fiber raw material, the spinning rod guide has at least two guiding points, and the distance between the guiding points is 1 / 4 to 1 / 3 of the width of the raw material; Step S4: feeding the composite fiber raw material into a static mixer for mixing, wherein a spiral mixing element is provided in the static mixer; Step S5: eliminating the twist of the composite fiber raw material by a twist stopper, wherein the rotation speed of the twist stopper is synchronized with the linear speed of a roller; Step S6: sending the composite fiber raw material into a double-slot deformation hot box for deformation treatment, and the temperature of the double-slot deformation hot box is controlled at 150° C. to 200° C.; Step S7: using a cooling plate to cool the deformed composite fiber raw material, and the surface temperature of the cooling plate is controlled at 10° C. to 30° C.; Step S8: alternately false twisting the composite fiber raw material by S twist and Z twist false twisters, the rotation speed of the false twister is 2 to 3 times the linear speed of a roller; Step S9: further stretching the false-twisted silk by the second roller, the linear speed of the second roller being 1.5 to 2 times the linear speed of the first roller; Step S10: feeding the stretched silk into the main network for network reinforcement; Step S11: using the auxiliary roller to perform auxiliary stretching of the wire, the linear speed of the auxiliary roller is synchronized with the second roller; Step S12: sending the silk into a shaping hot box for shaping treatment, the temperature of the shaping hot box is controlled at 165°C to 205°C, and the shaping time is 30 seconds to 60 seconds; Step S13: final stretching is performed by three rollers, and the linear speed of the three rollers is 1.2 to 1.8 times that of the two rollers; Step S14: using an oil tanker wire guide to oil the wire, the oil volume control accuracy of the oil tanker wire guide is ±0.1%; Step S15: Winding the silk into finished silk, with the winding speed matching the three-roller line speed; Step S16: Inspect and package the finished silk, including the diameter, strength, elongation and surface quality of the silk.

3. The method for producing matte colored elastic fiber according to claim 1, characterized in that: The temperature of the double-groove deformation hot box is 175°C.

4. The method for producing matte colored elastic fiber according to claim 1, characterized in that: The temperature of the shaping hot box is 185°C.

5. The method for producing matte colored elastic fiber according to claim 1, characterized in that: The draft ratio between the first roller and the second roller is 1.

70.

6. The method for producing matte colored elastic fiber according to claim 1, characterized in that: The pressure of the main network is 0.35 MPa.