CN109161981B - Preparation method of breathable moisture-conducting fabric - Google Patents
Preparation method of breathable moisture-conducting fabric Download PDFInfo
- Publication number
- CN109161981B CN109161981B CN201811083555.1A CN201811083555A CN109161981B CN 109161981 B CN109161981 B CN 109161981B CN 201811083555 A CN201811083555 A CN 201811083555A CN 109161981 B CN109161981 B CN 109161981B
- Authority
- CN
- China
- Prior art keywords
- reaction
- amino acid
- breathable moisture
- modified polyester
- acid
- 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
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
- D01F6/88—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
- C08G63/6854—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6856—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
Abstract
The invention discloses a preparation method of a breathable moisture-conducting fabric, which specifically comprises the following steps: s1, carrying out amino protection reaction on the amino acid 1 and phthalic anhydride 2 to obtain protected amino acid with a structure shown in a formula 3; s2, adding terephthalic acid 4, protected amino acid 3, ethylene glycol 5 and catalyst aluminum acetate into a stainless steel reaction kettle, and esterifying to obtain oligomer 7; s3, after esterification pre-condensation polymerization in the step S2, heating for the second time, and continuing polycondensation reaction to obtain a high polymer 8; s4, putting the high polymer 8 into an acid solution for deprotection reaction, namely removing a protecting group to obtain modified polyester 9; s5, adding the modified polyester 9, the dispersing agent, the defoaming agent and the softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, and extrusion through spinneret orifices to form trickle, performing side-blowing cooling, oiling strand silk, winding to form the high-strength polyester yarn, and performing dyeing and finishing spinning to obtain the breathable moisture-conductive fabric.
Description
Technical Field
The invention belongs to the technical field of fabrics, and particularly relates to a preparation method of a breathable moisture-conductive fabric.
Background
With the improvement of living standard and the development of science and technology, the requirements of consumers on clothes are higher and higher, and the clothes are required to be comfortable to wear, and simultaneously required to be bright in color and have the feeling of returning to nature. Natural fibre itself has many advantages, for example cotton fiber hygroscopicity is strong, easy dyeing, comfortable and easy to wear, alkali-resistant acidproof and heat resistance are good etc., but also have the drawback simultaneously, because cotton fiber contains more hydrophilic group, the water-absorbing capacity is good, and water retention capacity is stronger, makes the human body have uncomfortable sensation, especially when human perspiration volume is great, the swelling phenomenon appears after cotton fiber absorbs water, the gas permeability reduces, and the clothes can hug closely the health, causes a wet cold sensation to the human body, this is mainly that the sweat can not in time be discharged the reason.
Since the 20 th century, the polyester fiber has always occupied an important position in the chemical fiber industry, many physical and chemical properties of the polyester fiber are superior to those of natural fibers, such as high strength, good wear resistance, good rebound resilience and the like, and the fabric is not easy to deform, wrinkle or stiffness and is low in price. However, because the terylene is hydrophobic fiber, the macromolecule lacks hydrophilic groups, the molecular chain structure is compact, the crystallinity and the orientation degree are higher, the problems of poor hygroscopicity, easy generation of static electricity, easy contamination, difficult dyeing and the like of the terylene are caused, and the wearing comfort of the clothes is influenced.
Disclosure of Invention
The invention aims to provide a preparation method of the breathable moisture-conducting fabric, the method is scientific and reasonable, the prepared breathable moisture-conducting fabric has good moisture absorption and moisture conducting performance, amino acid is protected to be polymerized through ester bonds and firmly connected in polyester fibers, the amino acid is not easy to remove during cleaning, and the service life of the fabric is prolonged.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of the breathable moisture-conducting fabric specifically comprises the following steps:
s1 protection reaction of amino group
The reaction formula is as follows:
adding amino acid 1 and phthalic anhydride 2 into a reaction bottle, adding a solvent dichloromethane, heating until reflux reaction is carried out for 1.5-2h, and removing the solvent through rotary evaporation after the reaction is finished to obtain the protected amino acid with the structure of formula 3;
s2 esterification prepolycondensation
The reaction formula is as follows:
adding terephthalic acid 4, protected amino acid 3, ethylene glycol 5 and catalyst aluminum acetate into a stainless steel reaction kettle, introducing nitrogen for protection, heating to 210-225 ℃ under the pressure of 0.2MPa for esterification to obtain an oligomer 7; aluminum acetate is used as a catalyst, the catalytic activity is high, and the prepared polyester has high intrinsic viscosity;
s3 polycondensation reaction
Polymer 7 has the following structural formula:
after esterification and pre-polycondensation polymerization in the step S2, heating for the second time, slowly vacuumizing for pre-polycondensation, reducing the pressure to 100Pa in 25-30min, and continuing the polycondensation reaction for 2-5h to obtain a high polymer 8;
s4 deprotection of amino group
Putting the high polymer 8 into an acid solution for deprotection reaction, namely removing a protecting group to obtain modified polyester 9;
the structural formula of the modified polyester 9 is shown as follows:
the high polymer 8 is deprotected in 35-40% acetic acid water solution, the reaction condition is mild, the deprotection efficiency is high, the polyester is not hydrolyzed, and the polyester matrix is protected.
The traditional polyethylene terephthalate fiber is terylene, and terylene molecules have no other polar groups except two terminal alcoholic hydroxyl groups and ester group-COO-with very small polarity, so that the terylene has extremely poor hydrophilicity, and although the terylene molecules contain aliphatic hydrocarbon chain-OCH with strong internal rotation capability2CH2O-, enables the polyester molecules to have certain flexibility, but the polyester macromolecules also contain rigid groups-OC-Ar-CO- (Ar represents benzene rings), and the polyester macromolecules can only vibrate as a whole, so the polyester macromolecules are basically rigid molecules, molecular chains are easy to keep linear, the structure is compact, the hydrophobicity is strong, and the dyeing property, the moisture absorption property and the air permeability are poor, the hand feeling is hard, the touch feeling is poor, and the gloss is not soft;
according to the invention, terephthalic acid, protected amino acid and ethylene glycol are adopted for esterification copolymerization, the regularity and symmetry of the original polyethylene terephthalate chain are destroyed, a random polymer is formed, the crystallization capacity is reduced, and water molecules are easy to permeate into the fiber, so that the moisture absorption and air permeability of the modified polyester fiber are improved; in addition, an amino hydrophilic group is introduced into the polyester, and the amino is easy to associate with water vapor molecules to form a hydrogen bond, so that the water vapor molecules lose the thermal movement capability and depend in the fiber, thereby greatly improving the moisture absorption of the polyester fiber; the amino acid is protected to be polymerized and firmly connected in the polyester fiber through ester-based bonds, the moisture absorption performance of the fabric is not affected after the fabric is cleaned, and the fabric has good washability;
modified polyester introduces
The modified polyester fiber does not contain a symmetrical structure, so that the linear shape cannot be maintained, the rigidity of the polyester is reduced, and the flexibility of the modified polyester fiber is increased, so that the hand feeling, touch feeling and gloss softness of the polyester fabric are improved.
S5 preparation of breathable moisture-conducting fabric
Adding the modified polyester 9, a dispersing agent, a defoaming agent and a softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, and extrusion through spinneret orifices to form trickle, performing side-blowing cooling, oiling thread strips, winding and forming polyester high-strength yarns, and performing dyeing and finishing spinning to obtain the breathable moisture-conducting fabric.
Further, in the amino acid 1 described in the step S1, x is 1 or 2, when x is 1, the amino acid 1 is aspartic acid, and when x is 2, the amino acid 1 is glutamic acid.
Further, the molar ratio of the amino acid 1 to the phthalic anhydride 2 in the step S1 is 1: 1.5-2.2.
Further, the molar ratio of the terephthalic acid 4, the protected amino acid 3, the ethylene glycol 5 and the catalyst aluminum acetate in the step S2 is 0.5-0.7: 0.3-0.5: 1.8-2.2:0.002-0.003.
Further, the temperature of the secondary heating in step S3 is 250-270 ℃, and the heating rate is 2-3 ℃/min.
Further, the acid solution in step S4 is 35-40% acetic acid aqueous solution, the temperature of the deprotection reaction is 75-80 ℃, and the reaction time is 6-7 h.
Further, the intrinsic viscosity of the modified polyester 9 in step S4 is 0.88-1.19dl/g, and the relative molecular weight of the modified polyester 9 is 16000-.
Further, the weight ratio of the modified polyester 9, the dispersing agent, the defoaming agent and the softening agent in the step S5 is 100:0.5-1.5:0.3-0.6: 2-5.
Further, the cross section of the spinneret hole in the step S5 is K-shaped.
The invention has the beneficial effects that:
(1) according to the invention, terephthalic acid, protected amino acid and ethylene glycol are adopted for esterification copolymerization, the regularity and symmetry of the original polyethylene terephthalate chain are destroyed, a random polymer is formed, the crystallization capacity is reduced, and water molecules are easy to permeate into the fiber, so that the moisture absorption and air permeability of the modified polyester fiber are improved; in addition, an amino hydrophilic group is introduced into the polyester, and the amino is easy to associate with water vapor molecules to form a hydrogen bond, so that the water vapor molecules lose the thermal movement capability and depend in the fiber, thereby greatly improving the moisture absorption of the polyester fiber; the problem of poor air permeability and moisture absorption of the existing polyester fiber is solved;
(2) the amino acid is protected to be polymerized and firmly connected in the polyester fiber through ester-based bonds, the moisture absorption performance of the fabric cannot be influenced after the fabric is cleaned, the fabric has good washability, and the problem that the moisture absorption performance of the fabric manufactured by the existing coating process is reduced after the fabric is cleaned is solved;
(3) modified polyester introduces
The modified polyester fibers do not contain a symmetrical structure, so that the linearity can not be maintained, the rigidity of the polyester is reduced, and the flexibility of the modified polyester fibers is improved, so that the hand feeling, touch feeling and gloss softness of the polyester fabric are improved;
(4) the method for improving the moisture conductivity of the fiber by changing the shape of the spinneret orifice is a simple, intuitive and effective method for improving the moisture conductivity of the fiber, the number of capillaries formed by the fiber with the circular cross section and the fiber with the triangular cross section is less, the liquid water flow of the fiber with the ten-bracket-shaped cross section is less, the cross section of the spinneret orifice is K-shaped, so that a plurality of grooves are longitudinally generated on the modified polyester fiber, the grooves of the polyester fiber sprayed by the K-shaped spinneret orifice are deeper and narrower, and the moisture conductivity of the modified polyester fiber is greatly improved, and the method specifically comprises the following steps: the grooves on the surface of the fiber generate a capillary phenomenon, so that sweat can rapidly migrate to the surface of the fabric and diffuse through the functions of wicking, diffusion, transmission and the like, and the purpose of quick drying can be achieved, thereby achieving the effects of moisture absorption and sweat releasing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of the breathable moisture-conducting fabric specifically comprises the following steps:
s1 protection reaction of amino group
Adding 200mol of amino acid 1 and 400mol of phthalic anhydride 2 into a reaction bottle, adding a solvent dichloromethane, heating until reflux reaction is carried out for 1.5h, and removing the solvent through rotary evaporation after the reaction is finished to obtain the protected amino acid with the structure of the formula 3, wherein the yield is 96%; wherein, x in the amino acid 1 is 1, and the amino acid 1 is aspartic acid;
s2 esterification prepolycondensation
Adding 100mol of terephthalic acid 4, 100mol of protected amino acid 3, 400mol of ethylene glycol 5 and 0.4mol of catalyst aluminum acetate into a stainless steel reaction kettle, introducing nitrogen for protection, heating to 210 ℃ under the pressure of 0.2MPa, and carrying out esterification to obtain an oligomer 7;
s3 polycondensation reaction
Polymer 7 has the following structural formula:
after esterification and pre-polycondensation polymerization in the step S2, heating to 250 ℃ for the second time at the heating speed of 2 ℃/min, slowly vacuumizing for pre-polycondensation, reducing the pressure to 100Pa in 25min, and continuing the polycondensation reaction for 2h to obtain a high polymer 8;
s4 deprotection of amino group
Putting the high polymer 8 into 35% acetic acid water solution, and reacting for 6h at 75 ℃ to remove a protecting group, thereby obtaining modified polyester 9; the intrinsic viscosity of the modified polyester 9 is 0.93 dl/g;
the structural formula of the modified polyester 9 is shown as follows:
s5 preparation of breathable moisture-conducting fabric
Adding the modified polyester 9, a dispersing agent, a defoaming agent and a softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, extrusion through spinneret orifices to form trickle, side-blowing cooling, strand oiling, winding and forming polyester high-strength yarns, and performing dyeing and finishing spinning to obtain the breathable moisture-conducting fabric; the cross section of the spinneret orifice is K-shaped; the weight ratio of the modified polyester 9 to the dispersing agent to the defoaming agent to the softening agent is 100:0.5:0.3: 2.
Example 2
A preparation method of the breathable moisture-conducting fabric specifically comprises the following steps:
s1 protection reaction of amino group
Adding 200mol of amino acid 1 and 300mol of phthalic anhydride 2 into a reaction bottle, adding a solvent dichloromethane, heating to reflux for reaction for 2 hours, and removing the solvent through rotary evaporation after the reaction is finished to obtain the protected amino acid with the structure of the formula 3, wherein the yield is 98%; wherein, x in the amino acid 1 is 2, and the amino acid 1 is glutamic acid;
s2 esterification prepolycondensation
Adding 70mol of terephthalic acid 4, 30mol of protected amino acid 3, 180mol of ethylene glycol 5 and 0.3mol of catalyst aluminum acetate into a stainless steel reaction kettle, introducing nitrogen for protection, heating to 225 ℃ under the pressure of 0.2MPa, and carrying out esterification to obtain an oligomer 7;
s3 polycondensation reaction
Polymer 7 has the following structural formula:
after esterification pre-polycondensation polymerization in the step S2, heating to 270 ℃ for the second time, wherein the heating speed is 3 ℃/min, slowly vacuumizing for pre-polycondensation, reducing the pressure to 100Pa in 30min, and continuing the polycondensation reaction for 5h to obtain a high polymer 8;
s4 deprotection of amino group
Putting the high polymer 8 into 40% acetic acid water solution, and reacting for 7h at 80 ℃ to remove a protecting group, thereby obtaining modified polyester 9; the intrinsic viscosity of the modified polyester 9 in the step S4 is 1.19 dl/g;
the structural formula of the modified polyester 9 is shown as follows:
s5 preparation of breathable moisture-conducting fabric
Adding the modified polyester 9, a dispersing agent, a defoaming agent and a softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, extrusion through spinneret orifices to form trickle, side-blowing cooling, strand oiling, winding and forming polyester high-strength yarns, and performing dyeing and finishing spinning to obtain the breathable moisture-conducting fabric; the cross section of the spinneret orifice is K-shaped; the weight ratio of the modified polyester 9, the dispersing agent, the defoaming agent and the softening agent in the step S5 is 100:1.5:0.4: 4.
Example 3
A preparation method of the breathable moisture-conducting fabric specifically comprises the following steps:
s1 protection reaction of amino group
Adding 200mol of amino acid 1 and 440mol of phthalic anhydride 2 into a reaction bottle, adding a solvent dichloromethane, heating to reflux for reaction for 2 hours, and removing the solvent through rotary evaporation after the reaction is finished to obtain the protected amino acid with the structure of formula 3, wherein the yield is 97%; wherein, x in the amino acid 1 is 1, and the amino acid 1 is aspartic acid;
s2 esterification prepolycondensation
Adding 60mol of terephthalic acid 4, 40mol of protected amino acid 3, 200mol of ethylene glycol 5 and 0.25mol of catalyst aluminum acetate into a stainless steel reaction kettle, introducing nitrogen for protection, heating to 220 ℃ under the pressure of 0.2MPa, and carrying out esterification to obtain an oligomer 7;
s3 polycondensation reaction
After esterification and pre-polycondensation polymerization in the step S2, heating to 260 ℃ for the second time, wherein the heating speed is 2.5 ℃/min, slowly vacuumizing for pre-polycondensation, reducing the pressure to 100Pa in 30min, and continuing the polycondensation reaction for 4h to obtain a high polymer 8;
polymer 7 has the following structural formula:
s4 deprotection of amino group
Putting the high polymer 8 into 38% acetic acid water solution, and reacting for 6.5h at 77 ℃ to remove the protecting group, thereby obtaining modified polyester 9; the intrinsic viscosity of the modified polyester 9 in the step S4 is 1.08 dl/g;
the structural formula of the modified polyester 9 is shown as follows:
s5 preparation of breathable moisture-conducting fabric
Adding the modified polyester 9, a dispersing agent, a defoaming agent and a softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, extrusion through spinneret orifices to form trickle, side-blowing cooling, strand oiling, winding and forming polyester high-strength yarns, and performing dyeing and finishing spinning to obtain the breathable moisture-conducting fabric; the cross section of the spinneret orifice is K-shaped; the weight ratio of the modified polyester 9, the dispersing agent, the defoaming agent and the softening agent in the step S5 is 100:1:0.6: 3.
The breathable moisture-conductive fabric prepared in the examples 1 to 3 was subjected to a performance test:
wherein the air permeability is tested according to the national standard GB/T5453;
the moisture permeability test is carried out according to the national standard GB/T12704-1991;
testing the water absorption rate and the evaporation rate according to the national standard GB/T21655.1-2008;
the test results are shown in Table 1
Table 1 fabric performance test results
As shown in Table 1, a is obtained from a conventional polyethylene terephthalateThe moisture permeability, water absorption, evaporation rate and elongation at break of the polyester fabric are poor, so that the prepared polyester fabric has the defects of hard hand feeling, poor touch feeling, soft luster, poor air permeability, poor moisture absorption and moisture conductivity and the like; b. terephthalic acid, protected amino acid and ethylene glycol are subjected to esterification copolymerization, the regularity and symmetry of the original polyethylene terephthalate chain are destroyed, a random polymer is formed, the crystallization capacity is reduced, and water molecules are easy to permeate into the fiber, so that the moisture absorption and air permeability of the modified polyester fiber are improved; in addition, an amino hydrophilic group is introduced into the polyester, and the amino is easy to associate with water vapor molecules to form a hydrogen bond, so that the water vapor molecules lose the thermal movement capability and depend in the fiber, thereby greatly improving the moisture absorption of the polyester fiber; in addition, the cross section of the spinneret orifice is K-shaped, so that a plurality of grooves are longitudinally formed in the modified polyester fiber, the grooves of the polyester fiber sprayed from the K-shaped spinneret orifice are deeper and narrower, and the moisture permeability of the modified polyester fiber is greatly improved, specifically: the grooves on the surface of the fiber generate a capillary phenomenon, so that sweat can rapidly migrate to the surface of the fabric and diffuse through the actions of wicking, diffusion, transmission and the like, the purpose of quick drying can be achieved, and the moisture permeability, the water absorption rate and the evaporation rate are greatly improved; c. modified polyester introduces
The modified polyester fiber does not contain a symmetrical structure, so that the linear form cannot be maintained, the rigidity of the polyester is reduced, the flexibility of the modified polyester fiber is improved, and the elongation at break is improved.
After the breathable moisture-conductive fabric prepared in examples 1 to 3 was washed 50 times, performance testing was performed again, and the washing method was performed on a launder-ometer under the following washing conditions: washing powder 5g/L, bath ratio (mass ratio of fabric to washing liquid is 1:35), temperature 30 deg.C, time 15min for one washing;
TABLE 2 test results of the performance of the materials after 50 times of cleaning
As can be seen from Table 2, after the breathable moisture-conductive fabric prepared in examples 1-3 is washed for 50 times, the moisture permeability, the water absorption rate and the evaporation rate of the breathable moisture-conductive fabric have no obvious change, amino acids are protected to be polymerized and firmly connected in polyester fibers through ester bonds, the moisture absorption performance of the fabric is not affected after the breathable moisture-conductive fabric is washed, and the breathable moisture-conductive fabric has good washing fastness.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (8)
1. A preparation method of the breathable moisture-conducting fabric is characterized by comprising the following steps: the method specifically comprises the following steps:
s1 protection reaction of amino group
The reaction formula is as follows:
adding amino acid 1 and phthalic anhydride 2 into a reaction bottle, adding a solvent dichloromethane, heating until reflux reaction is carried out for 1.5-2h, and removing the solvent through rotary evaporation after the reaction is finished to obtain the protected amino acid with the structure of formula 3; x in the amino acid 1 is 1 or 2, when x is 1, the amino acid 1 is aspartic acid, and when x is 2, the amino acid 1 is glutamic acid;
s2 esterification prepolycondensation
Adding terephthalic acid 4, protected amino acid 3, ethylene glycol 5 and catalyst aluminum acetate into a stainless steel reaction kettle, introducing nitrogen for protection, heating to 210-225 ℃ under the pressure of 0.2MPa for esterification to obtain an oligomer 7;
s3 polycondensation reaction
Polymer 7 has the following structural formula:
after esterification and pre-polycondensation polymerization in the step S2, heating for the second time, slowly vacuumizing for pre-polycondensation, reducing the pressure to 100Pa in 25-30min, and continuing the polycondensation reaction for 2-5h to obtain a high polymer 8;
s4 deprotection of amino group
Putting the high polymer 8 into an acid solution for deprotection reaction, namely removing a protecting group to obtain modified polyester 9;
the structural formula of the modified polyester 9 is shown as follows:
s5 preparation of breathable moisture-conducting fabric
Adding the modified polyester 9, a dispersing agent, a defoaming agent and a softening agent into a screw extruder for melt extrusion, then performing melt filtration, liquid phase tackifying, and extrusion through spinneret orifices to form trickle, performing side-blowing cooling, oiling thread strips, winding and forming polyester high-strength yarns, and performing dyeing and finishing spinning to obtain the breathable moisture-conducting fabric.
2. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the molar ratio of the amino acid 1 to the phthalic anhydride 2 in the step S1 is 1: 1.5-2.2.
3. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the molar ratio of the terephthalic acid 4, the protected amino acid 3, the ethylene glycol 5 and the catalyst aluminum acetate in the step S2 is 0.5-0.7: 0.3-0.5: 1.8-2.2:0.002-0.003.
4. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the temperature of the secondary heating in the step S3 is 250-270 ℃, and the heating speed is 2-3 ℃/min.
5. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the acid solution in the step S4 is 35-40% acetic acid water solution, the temperature of deprotection reaction is 75-80 ℃, and the reaction time is 6-7 h.
6. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the intrinsic viscosity of the modified polyester 9 in the step S4 is 0.88-1.19dl/g, and the relative molecular weight of the modified polyester 9 is 16000-20000.
7. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the weight ratio of the modified polyester 9, the dispersing agent, the defoaming agent and the softening agent in the step S5 is 100:0.5-1.5:0.3-0.6: 2-5.
8. The method for preparing the breathable moisture-conductive fabric according to claim 1, characterized in that: the cross section of the spinneret orifice in the step S5 is K-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811083555.1A CN109161981B (en) | 2018-09-17 | 2018-09-17 | Preparation method of breathable moisture-conducting fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811083555.1A CN109161981B (en) | 2018-09-17 | 2018-09-17 | Preparation method of breathable moisture-conducting fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109161981A CN109161981A (en) | 2019-01-08 |
| CN109161981B true CN109161981B (en) | 2021-03-26 |
Family
ID=64879504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811083555.1A Active CN109161981B (en) | 2018-09-17 | 2018-09-17 | Preparation method of breathable moisture-conducting fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109161981B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232327A (en) * | 2021-12-18 | 2022-03-25 | 吴江市巨龙纺织品有限公司 | Preparation method of moisture-absorbing spandex filament, moisture-absorbing yarn and waterproof moisture-absorbing fabric |
| CN116695272A (en) * | 2023-08-08 | 2023-09-05 | 江苏恒科新材料有限公司 | Breathable cationic dyeable polyester fiber and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133336A (en) * | 1980-03-24 | 1981-10-19 | Furukawa Electric Co Ltd:The | Preparation of curable composition |
| CN103710782A (en) * | 2013-10-30 | 2014-04-09 | 上海德福伦化纤有限公司 | High-moisture-absorption easy-dying cotton-imitating polyester short fiber and preparation method thereof |
| CN104499080A (en) * | 2014-12-31 | 2015-04-08 | 江苏恒力化纤股份有限公司 | High-strength activated polyester industry yarn and preparation method thereof |
-
2018
- 2018-09-17 CN CN201811083555.1A patent/CN109161981B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133336A (en) * | 1980-03-24 | 1981-10-19 | Furukawa Electric Co Ltd:The | Preparation of curable composition |
| CN103710782A (en) * | 2013-10-30 | 2014-04-09 | 上海德福伦化纤有限公司 | High-moisture-absorption easy-dying cotton-imitating polyester short fiber and preparation method thereof |
| CN104499080A (en) * | 2014-12-31 | 2015-04-08 | 江苏恒力化纤股份有限公司 | High-strength activated polyester industry yarn and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 含有氨基酸基团的聚(ε-己内酯)合成与表征;冯亚凯;《天津大学学报(自然科学与工程技术版)》;20140415;第47卷(第4期);310-314 * |
| 脂肪族聚酯类生物材料亲水性改性的研究进展;王传栋;《生物医学工程研究》;20090925;第28卷(第3期);226-231 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109161981A (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6454982B1 (en) | Method of preparing polyethylene glycol modified polyester filaments | |
| CN109161981B (en) | Preparation method of breathable moisture-conducting fabric | |
| CN111607843A (en) | Preparation method of anhydride modified sheath-core composite fiber | |
| CN102690410B (en) | Method for producing modified polyester and fiber thereof | |
| CN104532392B (en) | Porous super-bright polyester fiber and preparation method thereof | |
| JP5751729B2 (en) | Copolymer ester modified with aliphatic diol having side chain and m-benzenedicarboxylic acid diester-5-sodium or potassium sulfonate and method for producing the fiber | |
| CN107011516B (en) | Polyester-polypentamethylenediamine diacid block copolymer, preparation method thereof and fiber | |
| CN115651177B (en) | Hydrophilic polyester granules and preparation method thereof | |
| CN105506774A (en) | Low-color-difference polyester differential shrinkage composite yarn and preparation method thereof | |
| CN103774269A (en) | Hygroscopic polyester fibre and preparation method and purpose thereof | |
| CN109384910B (en) | Preparation method of breathable and antibacterial fabric | |
| CN115785422B (en) | Method for preparing high molecular weight acidic dyeable copolyester by liquid phase polycondensation method | |
| CN114164513B (en) | Superfine cationic polyester fiber and preparation method thereof | |
| KR100547355B1 (en) | Polyester resin excellent in hydrophilicity and a method of manufacturing the same | |
| JP4108873B2 (en) | Polyester fiber | |
| CN115852519B (en) | Preparation method of polyester fiber not easy to generate microplastic in use process | |
| CN112080812B (en) | Comfort meta-aramid fiber and preparation method thereof | |
| CN115679698B (en) | Super-suction-discharge cotton-like fiber and production process thereof | |
| CN109267167B (en) | Preparation method of antifouling fabric for clothing production | |
| CN115928261A (en) | Easy-to-dye composite elastic fiber and preparation method thereof | |
| CN105463618A (en) | Low-chromatic-aberration bright polyester DTY and preparation method thereof | |
| KR100394697B1 (en) | Polyester fiber of easy dyeability | |
| JPS6257917A (en) | Polyester yarn | |
| KR920008994B1 (en) | Process for the preperation of modified fibers | |
| CN115785420A (en) | Acid-dyeable copolyester and preparation method thereof |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210305 Address after: 518000 Guangdong Shenzhen Futian District Che Kung Temple Tianan innovation and Technology Plaza A 1901-1905 Applicant after: SHENZHEN ELLASSAY FASHION Co.,Ltd. Address before: 518000 B14, area B, 5th floor, building B, urban famous garden, Baoan South Road, Guiyuan street, Luohu District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN XINBANTU TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |