CN111334907B - Method for preparing high-elastic functional fiber by one-step method - Google Patents
Method for preparing high-elastic functional fiber by one-step method Download PDFInfo
- Publication number
- CN111334907B CN111334907B CN202010191085.1A CN202010191085A CN111334907B CN 111334907 B CN111334907 B CN 111334907B CN 202010191085 A CN202010191085 A CN 202010191085A CN 111334907 B CN111334907 B CN 111334907B
- Authority
- CN
- China
- Prior art keywords
- fiber
- hot box
- functional
- retraction
- elasticity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0226—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting multiple false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
- D02G1/165—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam characterised by the use of certain filaments or yarns
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/08—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin
- D06M14/10—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/08—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin
- D06M14/12—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/14—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/08—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin
- D06M14/12—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/16—Polyamides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Plasma & Fusion (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention belongs to the technical field of textile industry, and particularly relates to a method for preparing high-elastic functional fibers by a one-step method, which comprises the following steps: sequentially carrying out mechanical high elasticity, functional assistant modification treatment, retraction of a first-stage roller hot box to a Nth-stage roller hot box, and spooling forming on matrix fibers; wherein, N is a positive integer larger than 1. The key point of the invention is that after the functional additive is modified, the functional additive is reacted, dried and pre-retracted and thermally retracted for multiple times through a multi-stage roller hot box, so that the high-elasticity effect of steam retraction is achieved. The invention compresses the four processes of double twisting, steam retraction and spooling of the traditional high-elastic fiber into one process by the principle of multiple thermal retraction, thereby realizing a one-step method; the same specification of 4 tons/day yield only needs 12 workers, the number of workers is 1/4 of the traditional step-by-step process, the cost is greatly reduced, and the energy consumption is reduced.
Description
Technical Field
The invention belongs to the technical field of textile industry, and particularly relates to a method for preparing high-elastic functional fibers by a one-step method.
Background
The current process for producing high elastic fiber needs: the five processes of double twisting, functional assistant treatment, stranding, steam retraction, spooling and the like consume time, energy and labor, and a line of operators with the output of 4 tons/day of the specification of the high-elasticity polyester 75D/36F 2 is nearly 46 people. Other processes are used for assisting the core process of steam retraction, and the principle that chemical fiber steam retraction is used for realizing high elasticity is adopted.
With the intensive research on the molecular chain characteristics of chemical fibers, particularly polyester and polyamide, the dry heat shrinkage of the chemical fibers is not lower than the wet heat shrinkage of steam, and even the dry heat shrinkage (up to 12%) of the polyester is better than the wet heat shrinkage (up to 10%) of the steam. The possibility of making high elastic fibers by dry heat retraction is supported theoretically.
Therefore, there is a need in the art to develop a method for producing high elastic fibers based on the dry heat retraction principle.
Disclosure of Invention
Based on the defects in the prior art, the invention provides a method for preparing high-elasticity functional fibers by a one-step method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing high-elastic functional fiber by a one-step method comprises the following steps: sequentially carrying out mechanical high elasticity, functional additive modification treatment, first-stage roller hot box retraction to Nth-stage roller hot box retraction and spooling forming on matrix fibers; wherein, N is a positive integer greater than 1. The key point of the invention is that after the functional additive is modified, the functional additive is reacted, dried and pre-retracted and thermally retracted for multiple times through a multi-stage roller hot box, so that the high-elasticity effect of steam retraction is achieved.
Preferably, the roller underfeed ratio is reduced and the temperature of the hot box is increased in a grading manner from the retraction of the first-stage roller hot box to the retraction of the Nth-stage roller hot box until the roller underfeed ratio of the retraction of the Nth-stage roller hot box is 40-60%.
As a preferred scheme, the roller underfeed ratio of the first-stage roller hot box retraction is 80-95%, the temperature of the hot box is 100-;
the second-stage roller hot box is retracted to 40-70% of roller underfeed ratio and the temperature of the hot box is 160-250 ℃.
The underfeed ratio is the ratio of the processing speed to the production speed in the zone.
Preferably, the mechanical high elasticity of the matrix fiber adopts a two-for-one twisting high elasticity process or a network high elasticity process;
the double-twist high-elasticity process comprises the following steps: when the texturing machine false twist texturing is carried out, the temperature of the upper hot box is 150 ℃ and 250 ℃, which is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.6-2.5, which is 5-20% higher than that of the conventional process; the matrix fiber is divided into two strands, one strand is in S direction, the other strand is in Z direction, and the two strands are merged and wound after passing through respective false twisters;
the network high-elasticity process comprises the following steps: when the texturing machine false twist texturing is carried out, the temperature of the upper hot box is 150 ℃ and 250 ℃, which is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.6-2.5, which is 5-20% higher than that of the conventional process; the matrix fiber is divided into two strands, one strand is S-direction, the other strand is Z-direction, and the two strands respectively pass through respective false twisters, then pass through a network nozzle and are combined for spooling; wherein, the air pressure of the network nozzle is 1.1-2.0 atmospheric pressure.
Preferably, the modification treatment of the functional additive comprises: firstly, carrying out plasma treatment on the fiber after mechanical high elasticity, wherein on one hand, the surface of the fiber is rough to form a plurality of grooves which are beneficial to adsorbing functional additives, and on the other hand, active groups (such as-OH, -COOH, -C ═ O and the like) are introduced into molecular chains on the surface of the fiber; then, modifying and coating the functional auxiliary agent on the fiber by adopting a gas-liquid phase grafting treatment process;
or, the functional assistant is firstly coated on the fiber after mechanical high elasticity, and then plasma treatment is carried out; on one hand, active groups are introduced into the functional auxiliary agent and the fiber surface molecular chain at the same time, on the other hand, high-energy particles of plasma become catalytic centers to directly initiate the reaction of the functional auxiliary agent and the fiber molecular chain, and a direct liquid phase grafting treatment process is adopted;
if the mechanical high elasticity of the matrix fiber adopts a double-twist high elasticity process, the matrix fiber is subjected to double-twist deformation or network deformation or stranding deformation before the modification treatment of the functional auxiliary agent; the double-twist deformation is that the fiber rotates around the direction of S or Z; the network deformation is that the fibers pass through a network nozzle to enable fiber monofilaments to be mutually crossed and intertwined, and if mechanical high elasticity is added into the network, the fiber monofilaments directly enter functional auxiliary agent modification treatment without any treatment; the plied yarn is deformed into two or more than two yarns which are combined; other existing fiber deformation methods may also be used.
Preferably, the process parameters of the plasma treatment include: the plasma is low-temperature plasma, the power is 1-100W, the pressure is atmospheric pressure, the used gas is air, the gas flow and the treatment time are determined according to the fiber passing speed, and the fiber passing speed is 30-1200 m/min.
Preferably, the functional assistant is sprayed on the fiber by atomization or oil nozzle casting or oil tanker rolling.
Preferably, the windings are formed into windings with an underfeed ratio of 80-90%.
Preferably, the matrix fiber is selected from polyester, polyamide, polypropylene or composite fiber.
Preferably, the matrix fiber is a white fiber or a colored spun fiber.
Preferably, the matrix fiber is selected from polyester, polyamide, polypropylene or composite fiber.
Preferably, the matrix fiber is a white fiber or a colored spun fiber.
Compared with the prior art, the invention has the beneficial effects that:
the invention compresses the four processes of double twisting, stranding, steam retraction and spooling of the traditional high-elastic fiber into one process by the principle of multiple thermal retraction, thereby realizing a one-step method; the same specification of 4 tons/day yield only needs 12 workers, the number of workers is 1/4 of the traditional step-by-step process, the cost is greatly reduced, and the energy consumption is reduced.
Drawings
FIG. 1 is a flow chart of a one-step method for preparing high elastic functional fiber according to a first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below. It should be understood that the embodiments described below are some of the embodiments of the present invention, and other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The first embodiment is as follows:
the base fiber of this embodiment is polyester filament, i.e. polyester POY colored filament.
The product made from the matrix fiber is functional high elastic polyester.
Specifically, as shown in fig. 1, the preparation method of the functional high elastic polyester of this embodiment comprises the following steps:
the 'two-for-one twisting' high-elasticity process is adopted, when polyester POY colored long fibers are subjected to elasticizing by an elasticizer, the temperature of an upper hot box is 160-200 ℃, and is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.6-1.9, which is 5-20% higher than that of the conventional process; the fibers are divided into two strands, one strand is S-direction and the other strand is Z-direction, and the two strands are combined and directly wound after passing through respective false twisters. Specifically, for example, the feeder model: the 1000 type large texturing machine has the conventional process that the temperature of an upper hot box is 170 ℃ and the D/Y ratio is 1.6; when the fiber is made into high elasticity, the temperature of the upper hot box is 190 ℃ and the D/Y ratio is 1.8, and compared with the conventional process, the fiber elasticity is improved.
At the moment, the fiber is firstly twisted by a double twister, then enters a plasma processing device for normal-pressure air low-temperature plasma processing, and is excited by adopting a high-frequency high-voltage glow discharge mode, the frequency is 50Hz-30KHz, the voltage is-30 KV- +30KV, the power is 2-10W, and the fiber passing speed is 90 m/min; then entering a functional additive adding device, and adopting an atomization spraying mode;
then the fiber enters a first-stage roller hot box to retract, the underfeed ratio of the roller is 90 percent, the temperature of the hot box is 130-150 ℃, and the temperature is just right for drying the fiber; then the mixture enters a secondary roller hot box to retract, the roller underfeed ratio is 50 percent, and the temperature of the hot box is 220 ℃;
and finally, spooling and forming by the underfeed ratio of 90% to obtain the functional high-elasticity polyester.
The functional high-elasticity polyester produced by the one-step process has the same elastic retraction rate as that of the conventional fractionation method, and the number of workers is 1/4 of the conventional fractionation method, so that the functional performance and the washing resistance are consistent with those of the conventional fractionation method, the production cost is greatly reduced, and the production efficiency is improved.
Example two:
the base fiber of this embodiment is polyamide filament, i.e., chinlon POY colored filament.
The product made of the matrix fiber is functional high-elastic chinlon.
Specifically, the preparation method of the functional high-elasticity nylon of the embodiment comprises the following steps:
by adopting a 'network' high-elasticity process, when the chinlon POY colored long fiber is subjected to elasticizing by an elasticizing machine, the temperature of an upper hot box is 180-220 ℃, and is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.8-2.2, which is 5-20% higher than that of the conventional process; the fibers are divided into two strands, one strand is S-direction, the other strand is Z-direction, and the two strands respectively pass through respective false twisters, then pass through a network nozzle and then are combined for spooling, and the air pressure of the network nozzle is 1.3 atmospheric pressures. Specifically, for example, the feeder model: the 800 type small elasticizer has the temperature of an upper hot box of 175 ℃ and the D/Y ratio of 1.8 in the conventional process; when the fiber is used for high elasticity, the temperature of the upper hot box is 190 ℃ and the D/Y ratio is 2.0, so that compared with the conventional process, the fiber elasticity is improved.
Firstly, a functional additive adding device is added, and a nozzle tip pouring mode is adopted; then the fiber enters a plasma treatment device to carry out atmospheric air low-temperature plasma treatment, and is excited by adopting a high-frequency high-voltage glow discharge mode, the frequency is 50Hz-50KHz, the voltage is-30 KV- +30KV, the power is 5-50W, and the fiber passing speed is 800 m/min;
then the fiber enters a first-stage roller hot box to retract, the roller underfeed ratio is 85 percent, the temperature of the hot box is 150 ℃ and 180 ℃, and the temperature is just right for drying the fiber; then the roller enters a second-stage roller hot box to retract, the roller underfeed ratio is 60 percent, and the temperature of the hot box is 200 ℃; then the mixture enters a third-level roller hot box to retract, wherein the roller underfeed ratio is 40 percent, and the temperature of the hot box is 210 ℃;
and finally, spooling and forming with the underfeed ratio of 85% to obtain the functional high-elastic nylon.
The elastic shrinkage rate of the functional high-elasticity nylon produced by the one-step process is the same as that of the functional high-elasticity nylon produced by the traditional division method, the number of workers is 1/4 of the traditional division method process, the functional performance and the washing resistance are consistent with those of the traditional division method, the production cost is greatly reduced, and the production efficiency is improved.
Example three:
the base fiber of this embodiment is polypropylene filament, i.e. polypropylene POY colored filament.
The product made of the matrix fiber is functional high-elasticity polypropylene fiber.
Specifically, the preparation method of the functional high-elasticity polypropylene fiber of the embodiment includes the following steps:
the double-twist high-elasticity process is adopted, when the polypropylene POY colored long fiber is subjected to texturing in a texturing machine, the temperature of an upper hot box is 150-; the D/Y ratio of the false twister is 1.6-1.8, which is 5-20% higher than that of the conventional process; the fibers are divided into two strands, one strand is S-direction and the other strand is Z-direction, and the two strands are combined and directly wound after passing through respective false twisters. For example, the feeder model: the 800 type small elasticizer has the temperature of an upper hot box of 130 ℃ and the D/Y ratio of 1.5 in the conventional process; when the fiber is used for high elasticity, the temperature of the upper hot box is 150 ℃, the D/Y ratio is 1.8, and compared with the conventional process, the fiber elasticity is improved.
At the moment, the fiber is firstly twisted by a double twister, then enters a plasma processing device for normal-pressure air low-temperature plasma processing, and is excited by adopting a high-frequency high-voltage glow discharge mode, the frequency is 50Hz-30KHz, the voltage is-30 KV- +30KV, the power is 2-10W, and the fiber passing speed is 120 m/min; then entering a functional additive adding device, and adopting an oil wheel roll coating mode;
then the fiber enters a first-stage roller hot box to retract, the underfeed ratio of the roller is 85 percent, the temperature of the hot box is 120-140 ℃, and the temperature is just enough to dry the fiber; then the mixture enters a second-stage roller hot box to retract, the roller underfeed ratio is 50 percent, and the temperature of the hot box is 180 ℃;
and finally, spooling and forming by the underfeed ratio of 90% to obtain the functional high-elasticity polypropylene fiber.
The elastic shrinkage of the functional high-elastic polypropylene produced by the one-step process is the same as that of the functional high-elastic polypropylene produced by the traditional fractionation method, the number of workers is 1/4 of the traditional fractionation process, the functional performance and the washing resistance are consistent with those of the traditional fractionation method, the production cost is greatly reduced, and the production efficiency is improved.
In the embodiment and the alternative scheme thereof, for the two-for-one twisting high-elasticity process, the temperature of the upper hot box is 150-250 ℃ when the texturing machine false twist is deformed, which is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.6-2.5, which is 5-20% higher than that of the conventional process; the upper hot box temperature and the D/Y ratio of the false twister can be designed within the above ranges according to the actual situation.
In the embodiment and the alternative scheme thereof, for the network high-elasticity process, when the false twist texturing of the texturing machine is carried out, the temperature of the upper hot box is 150-250 ℃, which is 5-20% higher than that of the conventional process; the D/Y ratio of the false twister is 1.6-2.5, which is 5-20% higher than that of the conventional process; the upper hot box temperature, D/Y ratio of the false twister and air pressure of the network nozzle can be designed within the above ranges according to the actual situation.
In the above embodiments and their alternatives, the network nozzle pressure can be anywhere between 1.1-2.0 atmospheres.
In the above embodiments and their alternatives, the process parameters of the plasma treatment can also be determined according to actual needs within the following ranges. Specifically, the power is 1-100W, the pressure is atmospheric pressure, the used gas is air, the gas flow and the treatment time are determined according to the passing speed of the fiber, and the passing speed of the single-strand fiber is 30-1200 m/min.
In the above embodiments and their alternatives, the functional additives can be sprayed by atomization or poured by oil nozzles or roller-coated by oil wheels, and designed according to actual requirements.
In the above embodiments and their alternatives, the functional assistant may be a water-proofing agent, an oil-proofing agent, an antibacterial agent, or other commonly used fiber modification aids, and is selected according to actual needs.
In the embodiment and the replacement scheme thereof, the roller underfeed ratio is reduced and the temperature of the hot box is increased in a grading way from the retraction of the first-stage roller hot box to the retraction of the Nth-stage roller hot box until the roller underfeed ratio of the retraction of the Nth-stage roller hot box is 40-60%, N is not limited to the steps 2 and 3 of the embodiment, the stage number of the retraction of the roller hot box can be designed according to actual requirements, and the roller underfeed ratio of the retraction of the Nth-stage roller hot box is arbitrarily selected from 40-60%.
In the embodiment and the alternative scheme thereof, the retraction parameters of the roller hot box at each stage can be taken from the following parameters, specifically, the roller underfeed ratio of the retraction of the first-stage roller hot box is 80-95%, and the temperature of the hot box is 100-; the second-stage roller hot box is retracted to 40-70% of roller underfeed ratio and the temperature of the hot box is 160-250 ℃.
In the above embodiment and its alternative, the final spooling is performed with an underfeed ratio between 80-90% at any value.
In the above embodiments and their alternatives, if the mechanical high-elasticity of the matrix fiber is a two-for-one twisting high-elasticity process, the matrix fiber is subjected to two-for-one twisting deformation or network deformation or stranding deformation before the functional assistant modification treatment, and is designed according to actual requirements.
In the above embodiments and their alternatives, the matrix fiber is selected from polyester, polyamide, polypropylene or composite fiber, and the matrix fiber is unbleached fiber or colored spun fiber, and is selected according to actual requirements.
The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.
Claims (6)
1. A method for preparing high-elastic functional fiber by a one-step method is characterized by comprising the following steps: sequentially carrying out mechanical high elasticity, functional additive modification treatment, first-stage roller hot box retraction to Nth-stage roller hot box retraction and spooling forming on matrix fibers; wherein, N is a positive integer greater than 1;
the roller underfeed ratio is reduced and the temperature of the hot box is increased by grading from the retraction of the first-stage roller hot box to the retraction of the Nth-stage roller hot box until the roller underfeed ratio of the retraction of the Nth-stage roller hot box is 40-60%;
the mechanical high elasticity of the matrix fiber adopts a two-for-one twisting high elasticity process or a network high elasticity process;
the double-twist high-elasticity process comprises the following steps: when the texturing machine performs false twist texturing, the temperature of the upper hot box is 150-; the matrix fiber is divided into two strands, one strand is in S direction, the other strand is in Z direction, and the two strands are merged and wound after passing through respective false twisters;
the network high-elasticity process comprises the following steps: when the texturing machine performs false twist texturing, the temperature of the upper hot box is 150-; the matrix fiber is divided into two strands, one strand is S-direction, the other strand is Z-direction, and the two strands respectively pass through respective false twisters, then pass through a network nozzle and are combined for spooling; wherein, the air pressure of the network nozzle is 1.1-2.0 atmospheric pressure;
the functional auxiliary agent modification treatment comprises the following steps: firstly, carrying out plasma treatment on the fiber after mechanical high elasticity, and then modifying and coating the functional auxiliary agent on the fiber; or, the functional assistant is firstly coated on the fiber after mechanical high elasticity, and then plasma treatment is carried out;
if the mechanical high elasticity of the matrix fiber adopts a two-for-one twisting high elasticity process, the matrix fiber is subjected to two-for-one twisting deformation or network deformation or stranding deformation before the functional auxiliary agent is modified;
the process parameters of the plasma treatment comprise: the plasma is low-temperature plasma, the power is 1-100W, the pressure is atmospheric pressure, the used gas is air, the gas flow and the treatment time are determined according to the fiber passing speed, and the fiber passing speed is 30-1200 m/min.
2. The method for preparing high-elastic functional fiber by one-step method as claimed in claim 1, wherein the roller underfeed ratio of the retraction of the first-stage roller hot box is 80-95%, and the temperature of the hot box is 100-180 ℃; the second-stage roller hot box is retracted to 40-70% of roller underfeed ratio and the temperature of the hot box is 160-250 ℃.
3. The method for preparing the high-elasticity functional fiber in one step according to claim 1, wherein the functional auxiliary agent is sprayed on the fiber by atomization or oil nozzle casting or oil tanker rolling.
4. The method of claim 1, wherein the bobbin is formed to have an underfeed ratio of 80-90%.
5. The method for preparing the high-elastic functional fiber in one step according to claim 1, wherein the base fiber is selected from polyester, polyamide, polypropylene or composite fiber.
6. The method for preparing the high-elastic functional fiber in one step according to claim 1, wherein the matrix fiber is a white natural fiber or a colored spun fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191085.1A CN111334907B (en) | 2020-03-18 | 2020-03-18 | Method for preparing high-elastic functional fiber by one-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191085.1A CN111334907B (en) | 2020-03-18 | 2020-03-18 | Method for preparing high-elastic functional fiber by one-step method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111334907A CN111334907A (en) | 2020-06-26 |
| CN111334907B true CN111334907B (en) | 2022-05-10 |
Family
ID=71182470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010191085.1A Active CN111334907B (en) | 2020-03-18 | 2020-03-18 | Method for preparing high-elastic functional fiber by one-step method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111334907B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH545869A (en) * | 1972-06-14 | 1974-02-15 | Heberlein & Co Ag | False twist texturising - in texturising machine with two-stage heater |
| CN203034193U (en) * | 2013-01-17 | 2013-07-03 | 广东新会美达锦纶股份有限公司 | Integrated draw-texturing machine used for composition of nylon yarn and cotton yarn |
| CN107447283A (en) * | 2017-08-31 | 2017-12-08 | 江苏中杰澳新材料有限公司 | Texturized polyamide fibre electrically conductive filament, manufacture method and its application |
-
2020
- 2020-03-18 CN CN202010191085.1A patent/CN111334907B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH545869A (en) * | 1972-06-14 | 1974-02-15 | Heberlein & Co Ag | False twist texturising - in texturising machine with two-stage heater |
| CN203034193U (en) * | 2013-01-17 | 2013-07-03 | 广东新会美达锦纶股份有限公司 | Integrated draw-texturing machine used for composition of nylon yarn and cotton yarn |
| CN107447283A (en) * | 2017-08-31 | 2017-12-08 | 江苏中杰澳新材料有限公司 | Texturized polyamide fibre electrically conductive filament, manufacture method and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111334907A (en) | 2020-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101445966B (en) | One-step production process for ultra-coarse denier polyester industrial fibers | |
| CN110055780B (en) | Novel steel wire rope core and production method thereof | |
| CN104674366A (en) | Polyamide yarn production technology | |
| CN102071480B (en) | Method for producing POY of tight heavy fleece | |
| CN102586905A (en) | Hot-stretched Corterra pre-oriented filament yarn spinning and winding manufacturing process | |
| CN102828278A (en) | Polyester fully-drawn slub yarn and preparation method thereof | |
| CN111334907B (en) | Method for preparing high-elastic functional fiber by one-step method | |
| CN101812754A (en) | Process for producing special covered yarn and product thereof | |
| CN106319678A (en) | Super-soft wool-like porous polyester and preparation method thereof | |
| CN109518288A (en) | Low denier yarn in the production method of low denier yarn and BCF nylon66 fiber in BCF nylon66 fiber | |
| CN106192104A (en) | A kind of preparation method of double-colored copper system antibacterial composite fibers | |
| CN111335021A (en) | Plasma modified waterproof oil-proof antifouling three-proofing high-elastic fiber and preparation method and application thereof | |
| CN101078135A (en) | Processing technology of 300-denier 576-hole polyester pre-oriented yarn | |
| CN105088363B (en) | A kind of spinning box structure | |
| CN112553739A (en) | Vortex spinning colored spun yarn and production process thereof | |
| CN108796727B (en) | Yang Di composite yarn production process | |
| CN106319679A (en) | Soft wool-like porous polyester and preparation method thereof | |
| US4054025A (en) | Process for the production of filament yarns with statistically distributed, broken individual filaments | |
| CN105040202A (en) | Chinlon 6 POY/ spandex stretching false-twisting covered yarn and one step preparation method thereof | |
| CN105525374B (en) | A kind of bi-component fully drawn yarn spinning system | |
| WO2008003234A1 (en) | A process for manufacturing crimped filaments of terylene and the apparatus thereof | |
| CN107385528A (en) | A kind of high-elastic delustring TSF composite fibres section spinning and preparation method thereof | |
| CN205420618U (en) | Dual component fully drawn yarn spinning system | |
| CN112941686A (en) | Production process of low-twist stranded wire with special structure | |
| CN115110191B (en) | Yarn super-soft processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A one-step method for preparing high elastic functional fibers Effective date of registration: 20220721 Granted publication date: 20220510 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Chengzhong sub branch Pledgor: ZHEJIANG KANGJIESI NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2022980010929 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230731 Granted publication date: 20220510 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Chengzhong sub branch Pledgor: ZHEJIANG KANGJIESI NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2022980010929 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |