CN112342655A - Bio-based polyamide yarn and preparation process thereof - Google Patents
Bio-based polyamide yarn and preparation process thereof Download PDFInfo
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- CN112342655A CN112342655A CN202011076662.9A CN202011076662A CN112342655A CN 112342655 A CN112342655 A CN 112342655A CN 202011076662 A CN202011076662 A CN 202011076662A CN 112342655 A CN112342655 A CN 112342655A
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- 238000002360 preparation method Methods 0.000 title abstract description 9
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- 238000000034 method Methods 0.000 claims abstract description 27
- 238000009987 spinning Methods 0.000 claims abstract description 26
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 17
- KJOMYNHMBRNCNY-UHFFFAOYSA-N pentane-1,1-diamine Chemical compound CCCCC(N)N KJOMYNHMBRNCNY-UHFFFAOYSA-N 0.000 claims abstract description 15
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 13
- 239000008103 glucose Substances 0.000 claims abstract description 13
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- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 10
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- 229920001778 nylon Polymers 0.000 claims abstract description 9
- 239000004677 Nylon Substances 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 229920006052 Chinlon® Polymers 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 20
- 229920006118 nylon 56 Polymers 0.000 claims description 14
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 13
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- 230000008018 melting Effects 0.000 claims description 7
- WBPYTXDJUQJLPQ-LLMNDNAOSA-N tylosin Chemical compound O=CCC1CC(C)C(=O)\C=C\C(\C)=C\C(COC2C(C(OC)C(O)C(C)O2)OC)C(CC)OC(=O)CC(O)C(C)C1OC(C(C1N(C)C)O)OC(C)C1OC1CC(C)(O)C(O)C(C)O1 WBPYTXDJUQJLPQ-LLMNDNAOSA-N 0.000 claims description 7
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- 239000003513 alkali Substances 0.000 claims description 4
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- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/28—Preparatory processes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
-
- 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
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/80—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
Abstract
The invention discloses a bio-based chinlon yarn and a preparation process thereof, belonging to the technical field of yarn preparation, and the preparation process comprises the steps of extracting pentanediamine by taking glucose as a raw material; extracting adipic acid; performing polymerization reaction on the extracted pentanediamine and adipic acid to obtain bio-based polyamide; obtaining the Tyron silk by the biobased polyamide slices by adopting a slice melt spinning method; preparing bamboo fiber slurry by using bamboo pulp as a raw material and adopting a solvent method; spinning and molding the prepared bamboo fiber slurry to obtain bamboo fiber filaments; blending bamboo fiber yarn and Tyron to obtain nylon yarn; the invention has the advantages of the Tyron and the bamboo fiber, has the characteristics of low-temperature deep dyeing, intrinsic flame retardance, high wear resistance, high moisture regain, soft hand feeling close to wool, good antibacterial and air permeability and high strength.
Description
Technical Field
The invention relates to the technical field of yarn preparation, in particular to a bio-based nylon yarn and a preparation process thereof.
Background
With the development of national economy and the continuous progress of society, the living standard of people is gradually improved, the requirements of the civil dress fabric material are changed towards the direction of functionalization, comfort and health care, the classification of novel artificial fibers is further refined, and meanwhile, the development is towards the direction of differentiation, individuation and functionalization, so that the development of various novel fiber materials is promoted. The Tylon is made up by using grain or non-grain biomass as raw material and making it pass through the process of biological conversion into textile material. The raw material of the Tyron comes from nature, can be regenerated, has rich raw material resources and a series of excellent performances, and is an ideal textile material. However, the tylon has poor temperature resistance and is not resistant to folding, while the existing yarn has low strength, poor wear resistance, poor dyeing property and poor antibacterial effect, and cannot meet the use requirements of people on the yarn.
Based on the above, the invention designs a bio-based chinlon yarn and a preparation process thereof, so as to solve the problems.
Disclosure of Invention
The invention aims to provide a bio-based chinlon yarn and a preparation process thereof, and aims to solve the problems that the existing yarn in the background art is low in strength, poor in wear resistance, poor in dyeing property and poor in antibacterial effect, and cannot meet the use requirements of people on the yarn.
In order to achieve the purpose, the invention provides the following technical scheme: a process for preparing bio-based nylon yarns comprises the following steps:
s1: extracting pentanediamine by taking glucose as a raw material;
s2: extracting adipic acid;
s3: performing polymerization reaction on the extracted pentanediamine and adipic acid to obtain bio-based polyamide;
s4: obtaining the Tyron silk by the biobased polyamide slices by adopting a slice melt spinning method;
s5: preparing bamboo fiber slurry by using bamboo pulp as a raw material and adopting a solvent method;
s6: spinning and molding the prepared bamboo fiber slurry to obtain bamboo fiber filaments;
s7: and (3) blending the bamboo fiber yarn and the Tyron to obtain the nylon yarn.
Preferably, in S1, the glucose is obtained from a plant, the glucose is fermented to produce L-lysine, and the L-lysine is converted into pentanediamine by a microorganism; such microorganisms include, but are not limited to, Escherichia coli, Bacillus subtilis, Bacillus alkalophilus, Streptomyces coelicolor, Hafnia alvei, Corynebacterium glutamicum, or Klebsiella octovalvis, among others, which are used to produce lysine decarboxylase.
Preferably, the chip melt spinning method comprises chip slicing, drying, melting, spinning, cooling, oiling, stretching and winding forming.
Preferably, in S4, the drying is vacuum drum drying, the first step: drying at constant temperature of 95 ℃ for 4h, and then: drying at 95-120 deg.C for 3 hr, and drying at 120 deg.C for 5 hr.
Preferably, in S4, the melting is performed by a screw extruder, the screw extrusion temperature is divided into five zones, and the temperatures are 250-260 ℃, 260-270 ℃, 270-280 ℃, 275-285 ℃ and 280-290 ℃.
Preferably, in S4, spinning is completed by using a spinning box, the temperature of the spinning box is 285-300 ℃, and the oiling rate is 0.8%.
Preferably, in S5, the solvent process comprises: 1. adding the bamboo pulp with the polymerization degree of 400-1000 into deionized water, adjusting the pH value to be 4-6, adding cellulase for activation, adding alkali, adjusting the pH value to be 10-13, and stopping activation to obtain the porridge; 2. vacuum dehydrating and squeezing the porridge to obtain cellulose with water content of 10-60% by mass; 3. adding the squeezed water cellulose into an aqueous solution containing 50-88% by mass of N-methylmorpholine-N-oxide to obtain pre-dissolved pulp; 4. and (3) after the pre-dissolved pulp enters a dissolving machine, heating, vacuumizing, dehydrating, dissolving, homogenizing and defoaming to obtain the bamboo fiber pulp.
Preferably, in S6, the bamboo fiber slurry is conveyed by a booster pump, enters a metering pump, is sprayed out by a spinneret plate, is formed by dry-wet spinning to obtain bamboo fibers, and is washed, bleached, oiled and dried to obtain bamboo filaments.
Preferably, in S7, the blending comprises 1, treating the Tyron filaments sequentially through a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to form rolls uniformly, then adopting a carding machine to perform opening and carding and impurity removal to prepare Tyron fiber raw strips, and then performing pre-merging treatment on the Tyron fiber raw strips to prepare Tyron fiber cooked strips; 2. the bamboo fiber filaments are sequentially processed by a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then the cotton fibers are opened, carded and subjected to impurity removal by a carding machine to be made into cotton fiber raw strips, and then the bamboo fiber raw strips are sequentially processed by a pre-drawing and strip-coiling combination machine to be made into bamboo fiber cooked strips; 3 drawing the Tylon fiber drawn sliver and the bamboo fiber drawn sliver, spinning into roving, spinning into spun yarn, and then twisting by winding and stranding to prepare the yarn.
The bio-based nylon yarn comprises Tyron fibers and bamboo fibers, wherein the blending ratio of the Tyron fibers to the bamboo fibers is 7: 3.
Compared with the prior art, the invention has the beneficial effects that:
obtaining glucose from plants, fermenting to prepare L-lysine, converting the L-lysine into pentanediamine, extracting adipic acid from a petroleum raw material, carrying out polymerization reaction on the pentanediamine obtained by extraction and the adipic acid to obtain bio-based polyamide, and obtaining the Tylen filaments by adopting a slice melt spinning method; the prepared bamboo fiber slurry is spun and molded to obtain bamboo fiber yarns, the bamboo fiber yarns and the Tyron are blended to obtain nylon yarns, and the nylon yarns have the advantages of the Tyron and the bamboo fibers, have the characteristics of low-temperature deep dyeing, intrinsic flame retardance, high wear resistance, high moisture regain, soft handfeel close to wool, are good in antibacterial and breathable performance and high in strength, and meet the using requirements of people on the yarns.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic representation of the lysine decarboxylation reaction of the present invention;
FIG. 2 is a reaction scheme for the synthesis of tylon according to the present invention;
FIG. 3 is a schematic view of a melt spinning process of the present invention;
FIG. 4 is a schematic view of the dyeing properties of the present invention;
fig. 5 is a schematic view of moisture absorption and discharge performance of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-5, the present invention provides a technical solution: a process for preparing bio-based nylon yarns comprises the following steps:
s1: extracting pentanediamine by taking glucose as a raw material;
s2: extracting adipic acid;
s3: performing polymerization reaction on the extracted pentanediamine and adipic acid to obtain bio-based polyamide;
s4: obtaining the Tyron silk by the biobased polyamide slices by adopting a slice melt spinning method;
s5: preparing bamboo fiber slurry by using bamboo pulp as a raw material and adopting a solvent method;
s6: spinning and molding the prepared bamboo fiber slurry to obtain bamboo fiber filaments;
s7: and (3) blending the bamboo fiber yarn and the Tyron to obtain the nylon yarn.
Wherein, in S1, glucose is obtained from plants, L-lysine is obtained by glucose fermentation, and L-lysine is converted into pentanediamine by microorganisms; microorganisms including but not limited to Escherichia coli, Bacillus subtilis, Bacillus alkalophilus, Streptomyces coelicolor, Hafnia alvei, Corynebacterium glutamicum or Orixia Klebsiella, etc., the microorganisms are used to produce lysine decarboxylase; the chip melt spinning method comprises the steps of chip slicing, drying, melting, spinning, cooling, oiling, stretching and winding forming.
Wherein, in S4, the drying is vacuum drum drying, and the first step is: drying at constant temperature of 95 ℃ for 4h, and then: drying at 95-120 deg.C for 3 hr, and drying at 120 deg.C for 5 hr. Melting is carried out by adopting a screw extruder, the screw extrusion temperature is divided into five zones, and the temperature is respectively 250-260 ℃, 260-270 ℃, 270-280 ℃, 275-285 ℃ and 280-290 ℃. Spinning is finished by a spinning box, the temperature of the spinning box is 285-300 ℃, and the oiling rate is 0.8%.
In S5, the solvent method includes: 1. adding the bamboo pulp with the polymerization degree of 400-1000 into deionized water, adjusting the pH value to be 4-6, adding cellulase for activation, adding alkali, adjusting the pH value to be 10-13, and stopping activation to obtain the porridge; 2. vacuum dehydrating and squeezing the porridge to obtain cellulose with water content of 10-60% by mass; 3. adding the squeezed water cellulose into an aqueous solution containing 50-88% by mass of N-methylmorpholine-N-oxide to obtain pre-dissolved pulp; 4. and (3) after the pre-dissolved pulp enters a dissolving machine, heating, vacuumizing, dehydrating, dissolving, homogenizing and defoaming to obtain the bamboo fiber pulp.
In S6, the bamboo fiber slurry is conveyed by a booster pump, enters a metering pump, is sprayed out by a spinneret plate, is formed by dry-wet spinning to obtain bamboo fibers, and is washed, bleached, oiled and dried to obtain the bamboo fiber yarns.
In the S7, the blending comprises 1, treating the Tyron filaments sequentially through a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then adopting a carding machine to perform opening and carding and impurity removal to prepare Tyron fiber raw strips, and then performing pre-merging treatment on the Tyron fiber raw strips to prepare Tyron fiber cooked strips; 2. the bamboo fiber filaments are sequentially processed by a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then the cotton fibers are opened, carded and subjected to impurity removal by a carding machine to be made into cotton fiber raw strips, and then the bamboo fiber raw strips are sequentially processed by a pre-drawing and strip-coiling combination machine to be made into bamboo fiber cooked strips; 3 drawing the Tylon fiber drawn sliver and the bamboo fiber drawn sliver, spinning into roving, spinning into spun yarn, and then twisting by winding and stranding to prepare the yarn.
The bio-based nylon yarn comprises Tyron fibers and bamboo fibers, wherein the blending ratio of the Tyron fibers to the bamboo fibers is 7: 3.
One specific application of this embodiment is: the invention obtains glucose from plants, wherein the plants can be corn, wheat and the like, and then the L-lysine is prepared by glucose fermentation, and is converted into the pentanediamine by lysine decarboxylase produced by microorganisms; then extracting adipic acid from the petroleum raw material; and (3) carrying out polymerization reaction on the extracted pentanediamine and adipic acid to obtain the bio-based polyamide.
The method comprises the steps of drying bio-based polyamide slices at a constant temperature of 95 ℃ for 4h by a vacuum rotary drum, drying at a constant temperature of 95-120 ℃ for 3h, and drying at a constant temperature of 120 ℃ for 5h to obtain slices with water content lower than 30, melting the slices in a screw extruder, controlling the screw temperature in a partition mode, wherein the temperatures of five regions are respectively 260 ℃, 260-plus-one temperature, 270-plus-one temperature, 280-plus-one temperature, 285-plus-one temperature and 280-plus-one temperature, spinning at a temperature of 285-plus-one temperature and 300 ℃ by a spinning box, cooling, oiling, stretching, winding and forming, wherein the oiling rate is 0.8%.
Adding the bamboo pulp with the polymerization degree of 400-1000 into deionized water, adjusting the pH value to be 4-6, adding cellulase for activation, adding alkali, adjusting the pH value to be 10-13, and stopping activation to obtain the porridge; 2. vacuum dehydrating and squeezing the porridge to obtain cellulose with water content of 10-60% by mass; 3. adding the squeezed water cellulose into an aqueous solution containing 50-88% by mass of N-methylmorpholine-N-oxide to obtain pre-dissolved pulp; 4. after the pre-dissolving pulp enters a dissolving machine, heating, vacuumizing, dehydrating, dissolving, homogenizing and defoaming to obtain bamboo fiber pulp; conveying the bamboo fiber slurry by a booster pump, feeding the slurry into a metering pump, spraying the slurry by a spinneret plate, performing dry-wet spinning forming to obtain bamboo fibers, and washing, bleaching, oiling and drying the bamboo fibers to obtain the bamboo fiber filaments.
The method comprises the following steps of processing the Tyron filaments into coils uniformly by a bale plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former in sequence, then carrying out opening and carding and impurity removal by a carding machine to prepare a Tyron fiber raw strip, and then carrying out pre-merging treatment on the Tyron fiber raw strip to prepare a Tyron fiber cooked strip; the bamboo fiber filaments are sequentially processed by a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then the cotton fibers are opened, carded and subjected to impurity removal by a carding machine to be made into cotton fiber raw strips, and then the bamboo fiber raw strips are sequentially processed by a pre-drawing and strip-coiling combination machine to be made into bamboo fiber cooked strips; drawing the Tylon fiber drawn sliver and the bamboo fiber drawn sliver, spinning into roving, spinning into spun yarn, and then twisting by winding and stranding to prepare the yarn.
The blended yarn of the Tyron fiber and the bamboo fiber in the blending ratio of 7:3 has the advantages of both the Tyron fiber and the bamboo fiber, has the characteristics of low-temperature deep dyeing, intrinsic flame retardance, high wear resistance, high moisture regain, soft hand feeling close to wool, good antibacterial and air permeability and high strength.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A process for preparing bio-based chinlon yarns is characterized by comprising the following steps: the method comprises the following steps:
s1: extracting pentanediamine by taking glucose as a raw material;
s2: extracting adipic acid;
s3: performing polymerization reaction on the extracted pentanediamine and adipic acid to obtain bio-based polyamide;
s4: obtaining the Tyron silk by the biobased polyamide slices by adopting a slice melt spinning method;
s5: preparing bamboo fiber slurry by using bamboo pulp as a raw material and adopting a solvent method;
s6: spinning and molding the prepared bamboo fiber slurry to obtain bamboo fiber filaments;
s7: and (3) blending the bamboo fiber yarn and the Tyron to obtain the nylon yarn.
2. The process for preparing bio-based nylon yarn according to claim 1, wherein the process comprises the following steps: in S1, the glucose is obtained from a plant, the glucose is fermented to produce L-lysine, and the L-lysine is converted into pentanediamine by a microorganism; such microorganisms include, but are not limited to, Escherichia coli, Bacillus subtilis, Bacillus alkalophilus, Streptomyces coelicolor, Hafnia alvei, Corynebacterium glutamicum, or Klebsiella octovalvis, among others, which are used to produce lysine decarboxylase.
3. The process for preparing bio-based nylon yarn according to claim 1, wherein the process comprises the following steps: the chip melt spinning method comprises the steps of chip slicing, drying, melting, spinning, cooling, oiling, stretching and winding forming.
4. The process for preparing bio-based nylon yarn according to claim 4, wherein the process comprises the following steps: in S4, the drying is vacuum drum drying, the first step: drying at constant temperature of 95 ℃ for 4h, and then: drying at 95-120 deg.C for 3 hr, and drying at 120 deg.C for 5 hr.
5. The process for preparing bio-based nylon yarn according to claim 4, wherein the process comprises the following steps: in S4, the melting is performed by a screw extruder, the screw extrusion temperature is divided into five zones, and the temperatures are respectively 250-260 ℃, 260-270 ℃, 270-280 ℃, 275-285 ℃ and 280-290 ℃.
6. The process for preparing bio-based nylon yarn according to claim 4, wherein the process comprises the following steps: in S4, spinning is completed by a spinning box, the temperature of the spinning box is 285 ℃ and 300 ℃, and the oiling rate is 0.8%.
7. The process for preparing bio-based nylon yarn according to claim 1, wherein the process comprises the following steps: s5, the solvent process comprising: 1. adding the bamboo pulp with the polymerization degree of 400-1000 into deionized water, adjusting the pH value to be 4-6, adding cellulase for activation, adding alkali, adjusting the pH value to be 10-13, and stopping activation to obtain the porridge; 2. vacuum dehydrating and squeezing the porridge to obtain cellulose with water content of 10-60% by mass; 3. adding the squeezed water cellulose into an aqueous solution containing 50-88% by mass of N-methylmorpholine-N-oxide to obtain pre-dissolved pulp; 4. and (3) after the pre-dissolved pulp enters a dissolving machine, heating, vacuumizing, dehydrating, dissolving, homogenizing and defoaming to obtain the bamboo fiber pulp.
8. The process for preparing bio-based nylon yarn according to claim 1, wherein the process comprises the following steps: and S6, conveying the bamboo fiber slurry by a booster pump, feeding the bamboo fiber slurry into a metering pump, spraying the slurry by a spinneret plate, performing dry-wet spinning forming to obtain bamboo fibers, and washing, bleaching, oiling and drying the bamboo fibers to obtain the bamboo fiber filaments.
9. The process for preparing bio-based nylon yarn according to claim 1, wherein the process comprises the following steps: in S7, the blending comprises 1, treating the Tyron filaments sequentially through a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then adopting a carding machine to perform opening and carding and impurity removal to prepare Tyron fiber raw strips, and then performing pre-merging treatment on the Tyron fiber raw strips to prepare Tyron fiber cooked strips; 2. the bamboo fiber filaments are sequentially processed by a plucker, a multi-bin cotton mixer, an opener, a cotton feeder and a lap former to be uniformly coiled, then the cotton fibers are opened, carded and subjected to impurity removal by a carding machine to be made into cotton fiber raw strips, and then the bamboo fiber raw strips are sequentially processed by a pre-drawing and strip-coiling combination machine to be made into bamboo fiber cooked strips; 3. drawing the Tylon fiber drawn sliver and the bamboo fiber drawn sliver, spinning into roving, spinning into spun yarn, and then twisting by winding and stranding to prepare the yarn.
10. A bio-based nylon yarn is characterized in that: the nylon yarn comprises a nylon fiber and a bamboo fiber, wherein the blending ratio of the nylon fiber to the bamboo fiber is 7: 3.
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| WO2022231286A1 (en) * | 2021-04-30 | 2022-11-03 | 코오롱인더스트리 주식회사 | Cord comprising bio-based component and method for preparing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022231286A1 (en) * | 2021-04-30 | 2022-11-03 | 코오롱인더스트리 주식회사 | Cord comprising bio-based component and method for preparing same |
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