CN117468110A - Far infrared antibacterial organic silicon nitrogen flame-retardant fiber and production method thereof - Google Patents
Far infrared antibacterial organic silicon nitrogen flame-retardant fiber and production method thereof Download PDFInfo
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- CN117468110A CN117468110A CN202311442095.8A CN202311442095A CN117468110A CN 117468110 A CN117468110 A CN 117468110A CN 202311442095 A CN202311442095 A CN 202311442095A CN 117468110 A CN117468110 A CN 117468110A
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 254
- 239000003063 flame retardant Substances 0.000 title claims abstract description 254
- 239000000835 fiber Substances 0.000 title claims abstract description 204
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 176
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 title claims abstract description 169
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- 239000000243 solution Substances 0.000 claims description 81
- 238000009987 spinning Methods 0.000 claims description 75
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- 239000001913 cellulose Substances 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 52
- 239000000047 product Substances 0.000 claims description 41
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 40
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 23
- 238000003908 quality control method Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 20
- 239000003292 glue Substances 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 239000003242 anti bacterial agent Substances 0.000 claims description 15
- 238000004132 cross linking Methods 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000004090 dissolution Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 239000008041 oiling agent Substances 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000002086 nanomaterial Substances 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000012467 final product Substances 0.000 claims description 9
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- 239000000126 substance Substances 0.000 claims description 9
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- 239000007795 chemical reaction product Substances 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 8
- 230000001112 coagulating effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 6
- 235000011613 Pinus brutia Nutrition 0.000 claims description 6
- 241000018646 Pinus brutia Species 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 229920013822 aminosilicone Polymers 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 150000001282 organosilanes Chemical class 0.000 claims description 6
- 230000000704 physical effect Effects 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 238000004445 quantitative analysis Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
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- 239000012535 impurity Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000012258 culturing Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000001963 growth medium Substances 0.000 claims description 3
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- 238000004804 winding Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
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- 238000005516 engineering process Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
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- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
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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
- 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
- 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
- D01D5/06—Wet 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a far infrared antibacterial organic silicon nitrogen flame-retardant fiber and a production method thereof, and relates to the technical field of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber and the production method thereof.
Description
Technical Field
The invention relates to the technical field of far infrared antibacterial organic silicon nitrogen flame-retardant fibers and production methods thereof, in particular to a far infrared antibacterial organic silicon nitrogen flame-retardant fiber and a production method thereof.
Background
The far infrared antibacterial organic silicon nitrogen flame-retardant fiber is regenerated far infrared antibacterial organic silicon nitrogen flame-retardant cellulose, and the production method of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is used for manufacturing a fiber production technology with stable performance, flame retardant performance, far infrared emission performance and antibacterial performance, so that the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is used in multiple fields in real life, and the performance requirements on fiber products are also increasingly improved.
The existing far infrared antibacterial organic silicon nitrogen flame-retardant fiber and the production method thereof have the defects that:
1. in JP4669343B2, a method for producing a flame-retardant fiber is disclosed, and the above publication does not consider the problem of how to enhance the flame-retardant property of the flame-retardant fiber, reducing the flame-retardant effect;
2. in the application document KR100652026B1, a method for producing a functional fiber and a product thereof is disclosed, and the above-mentioned publication document does not consider the problem of enhancing the antibacterial property and far infrared emission property of the fiber, and the functionality is reduced;
3. in the patent document CN107254720B, a far infrared antibacterial organic silicon nitrogen flame-retardant fiber and a production method thereof are disclosed, and the above publication does not consider the problem that the fiber has flame-retardant effect and can improve stability and make the fiber more durable, and the functionality is reduced;
4. in application CN106222775a, an organosilicon nitrogen flame-retardant regenerated cellulose fiber is disclosed, and the above publication does not consider the problem of quality control of the produced flame-retardant fiber, and reduces the consistency and safety of fiber components.
Disclosure of Invention
The invention aims to provide a far infrared antibacterial organic silicon nitrogen flame-retardant fiber and a production method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a far infrared antimicrobial silicone nitrogen flame retardant fiber, the advantages of the far infrared antimicrobial silicone nitrogen flame retardant fiber comprising:
(1) The stable performance is good;
(2) The flame retardant property is enhanced;
(3) The far infrared emission performance is good;
(4) The antibacterial performance is good;
the prepared novel organic silicon nitrogen flame retardant is mixed with the prepared cellulose solution through injection before spinning and then uniformly stirred to form spinning glue, then the spinning glue spinning method is used for preparing a primary product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, the refining method and the post-treatment method are used for preparing a final product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, and finally the quality control is used for judging whether the produced far infrared antibacterial organic silicon nitrogen flame retardant fiber is qualified, so that the application range of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is greatly expanded.
Preferably, the production method of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber comprises the following steps:
step S1: preparing a cellulose solution;
step S2: injecting before spinning;
step S3: spinning;
step S4: refining;
step S5: a post-treatment method;
step S6: and (5) quality control.
Preferably, the step S1 is to prepare a cellulose solution:
materials: selecting high-quality pine wood, crushing the high-quality pine wood into wood chips, and then crushing the wood chips to obtain cellulose powder with the granularity of 100-200 meshes and an organic solvent N-methylmorpholine-N-oxide;
the device comprises: a heater and a dissolver;
the operation steps are as follows: firstly, placing cellulose powder with the granularity of 100-200 meshes into a heater, heating to 65 ℃, then adding an organic solution into the heater, uniformly mixing and stirring, then placing the cellulose solution with the granularity of 65 ℃ into a dissolver to completely dissolve the cellulose powder and the organic solution to prepare a cellulose solution, and then adding a dilute hydrochloric acid solution and a 0.1M sodium hydroxide solution to enable the pH value of the cellulose solution to be between 4 and 7;
the quality and stability of the cellulose solution are improved by controlling the granularity of the cellulose powder, the temperature for preparing the cellulose solution and the method for adjusting the pH value, so that the internal structure and mechanical property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved, the fiber is more wear-resistant and durable, and the fiber is further used for preparing spinning glue with higher quality in the later period.
Preferably, the step S2 is injection before spinning:
the injection before spinning is a key link of mixing the cellulose solution and the organic silicon nitrogen composite flame retardant, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is ensured;
materials: (1) preparing a novel organic silicon nitrogen composite flame retardant: selecting 25% of organosilane hydrolysis dispersion liquid, 12.2% of polyboronic acid ester, 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent;
(2) Functional auxiliary agent: 0.8% of nano material and 1% of antioxidant;
(3) A cellulose solution having a concentration of 28%;
the device comprises: a mixer and a syringe;
the operation steps are as follows: the preparation method comprises the steps of putting 25% of organosilane hydrolysis dispersion liquid and 12.2% of polyboronic acid ester into a mixer for mixing, then adding 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent, stirring uniformly to prepare a novel organic silicon nitrogen composite flame retardant, putting the novel organic silicon nitrogen composite flame retardant into a syringe, improving the dispersibility and uniformity of the novel organic silicon nitrogen composite flame retardant in a cellulose solution by adjusting the injection pressure of the syringe to 8MPa and controlling the mixing temperature to 95 ℃, mixing the flame retardant with the cellulose solution for 35 minutes, then sequentially adding 0.8% of nano material and 1% of antioxidant into the mixed solution, and stirring uniformly again to prepare the spinning gel.
Preferably, the step S3 is spinning:
the spinning process is used for improving the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber;
materials: selecting spinning glue configured in the step S2;
the device comprises: a spinning machine and a yarn winding machine;
the operation steps are as follows: the spinning glue is sprayed out from a spinneret to spin by adjusting the spinning pressure to 260MPa and the diameter of the spinneret to be 1.2mm, and then the temperature of a coagulating bath is controlled to be 110 ℃, so that the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are improved, the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are coagulated and molded by the coagulating bath, and then a primary flame-retardant far infrared antibacterial organic silicon nitrogen flame-retardant fiber product is obtained after washing and pickling treatment, and the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is further improved.
Preferably, the step S4 is refining:
(1) And (3) fixing and crosslinking: the obtained flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is put into a fixed crosslinking liquid for soaking, the heating temperature is controlled to be 200 ℃, and after 8 minutes, the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is fully fixed and crosslinked;
(2) Washing: placing the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking into water for cleaning, and cleaning for more than three times to ensure that residual fixed crosslinking liquid and impurities of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking are removed by 95%;
(3) Oiling: the primary product of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber after water washing is put into an oiling agent to be soaked and oiled, the oil temperature is controlled to be 28 ℃, and after 20 minutes of soaking, the softness and antistatic performance of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved;
(4) And (3) drying: and (3) taking out the oily far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product from the oiling agent, draining the excessive oiling agent, putting the obtained product into a baking oven for baking, controlling the baking temperature to be 120 ℃, and baking for 10 minutes, and removing residual moisture and oiling agent to obtain the far-infrared antibacterial organic silicon nitrogen flame-retardant fiber final product.
Preferably, the step S5, the post-processing method:
the post-treatment method comprises the following specific steps of:
padding and baking method: the method comprises the steps of padding far infrared antibacterial organic silicon nitrogen flame-retardant fibers in a 20% antibacterial agent solution for two hours to enable the antibacterial agent to permeate into the far infrared antibacterial organic silicon nitrogen flame-retardant fibers, achieving the aim of improving antibacterial property, then fishing out and draining redundant solution from an antibacterial agent solvent, then baking the far infrared antibacterial organic silicon nitrogen flame-retardant fibers for 7 minutes, wherein the baking temperature is 100 ℃, and fixing the antibacterial agent in the far infrared antibacterial organic silicon nitrogen flame-retardant fibers, so that the antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fibers is improved.
Preferably, the step S6 is a quality control:
the quality control is carried out by physically detecting the final product of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, and determining whether the stability, flame retardant property, far infrared emission property and antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are qualified or not, wherein the specific contents are as follows:
(4) Stability performance: the test method of stability performance selects a thermal stability test, wherein the thermal stability test is to observe the change condition of physical properties of a sample by heating the sample to 100 ℃ and keeping the sample for 20 minutes;
(5) Flame retardant properties: the method for testing the flame retardant property comprises the steps of selecting a vertical burning test and a horizontal burning test, wherein the vertical burning test and the horizontal burning test are carried out by cutting a sample into specified sizes of 150mm multiplied by 50mm multiplied by 5mm, then burning the sample, and observing the burning speed and flame spreading condition after burning for 30 minutes so as to evaluate the flame retardant property;
(6) Far infrared emission performance: detecting far infrared emissivity of the flame-retardant fiber end product by an infrared spectrometer, placing a sample to be tested under the high temperature condition of 150 ℃, and testing infrared radiation intensity within the wavelength range of 2.5-25 mu m so as to evaluate the far infrared emission performance;
(4) Antibacterial properties: the antibacterial performance of the flame-retardant fiber end product is evaluated by adopting a quantitative method, the minimum sterilization concentration method is selected by the quantitative method, and the antibacterial effect is evaluated by inoculating a sample to be tested on a culture medium, culturing for a certain time, observing the growth condition of bacteria and counting.
Preferably, in the step S1, the method further includes the following steps:
step S11: (1) Drying the cellulose powder in a heating mode by a heater to evaporate excessive water in the cellulose powder, and keeping the water content of the dried cellulose powder at 2% -5%;
(2) Solvent: the organic solvent N-methyl morphidine-N-oxide is selected to dissolve cellulose powder, so that the cellulose powder is effectively dissolved to prepare a cellulose solution, and the cellulose content is controlled to be 28% when the cellulose solution is prepared, so that the purity of the prepared cellulose solution is suitable for the production and preparation of far infrared antibacterial organic silicon nitrogen flame-retardant fibers;
(3) Controlling the dissolution temperature: the dissolution temperature is controlled to be about 65 ℃, so that the dissolution speed of cellulose powder is increased, and the dissolution efficiency is improved;
(4) Stirring: in the dissolving process, the cellulose powder is fully contacted with the organic solvent in a stirring manner, so that the mixing of the cellulose powder and the solvent is promoted, and the dissolving speed is increased;
(5) Adjusting the pH value of the cellulose solution: and selecting a pH value solvent, and controlling the pH value of the cellulose solution to be between 4 and 7.
Preferably, in the step S2, the method further includes the following steps:
s21, developing a novel organic silicon nitrogen flame retardant to further improve the flame retardant property and the environmental protection property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber;
(1) The structure and the chemical component content of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are better controlled by optimizing the injection process before spinning, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is enhanced, and the flame retardant is more uniformly distributed in the far infrared antibacterial organic silicon nitrogen flame-retardant fiber due to reasonable injection pressure and mixing temperature parameters, so that the flame retardant effect is improved;
(2) The added functional auxiliary nano material and antioxidant can enhance the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention prepares the cellulose solution by mixing cellulose powder with 100-200 meshes with an organic solvent at 65 ℃ and stirring uniformly, then adds a dilute hydrochloric acid solution and a 0.1M sodium hydroxide solution, ensures that the pH value of the cellulose solution is between 4 and 7, improves the quality and stability of the cellulose solution, and further improves the internal structure and mechanical property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, so that the prepared fiber end product is more wear-resistant and durable.
2. According to the invention, the novel organic silicon nitrogen composite flame retardant and the prepared cellulose solution are mixed by a pre-spinning injection method and then uniformly stirred to prepare the spinning gel, so that the flame retardant is more uniformly distributed in the cellulose solution, and the flame retardant effect of the fiber is improved.
3. The spinning glue prepared by the invention is sprayed out from a spinneret for spinning by adjusting the spinning pressure to 260MPa and the diameter of the spinneret to 1.2mm, and then the coagulating bath temperature is controlled to be 110 ℃, so that the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are improved, and the far infrared emission performance of the primary product of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is further improved by adding 0.8% of nano material and 1% of functional auxiliary agent of antioxidant when the spinning glue is prepared.
4. According to the invention, the prepared far infrared antibacterial organic silicon nitrogen flame-retardant fiber end product is padded in 20% antibacterial agent solution for two hours by a padding baking method in a post-treatment method, then the extra solution is fished out from the antibacterial agent solvent, and then the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is subjected to baking treatment for 5 minutes at 100 ℃ so as to fix the antibacterial agent in the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, thereby improving the antibacterial performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of a solution of cellulose prepared according to the present invention;
FIG. 3 is a schematic illustration of the pre-spin injection of the present invention;
FIG. 4 is a spinning schematic of the present invention;
FIG. 5 is a refining schematic of the present invention;
fig. 6 is a schematic diagram of the quality control of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All embodiments obtained by a person of ordinary skill in the art without making any inventive effort based on the embodiments of the present invention are within the scope of the present invention.
Embodiment one:
referring to fig. 1, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof have the advantages that:
(1) The stable performance is good;
(2) The flame retardant property is enhanced;
(3) The far infrared emission performance is good;
(4) The antibacterial performance is good;
the prepared novel organic silicon nitrogen flame retardant is mixed with the prepared cellulose solution through injection before spinning and then uniformly stirred to form spinning glue, then the spinning glue spinning method is used for preparing a primary product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, the refining method and the post-treatment method are used for preparing a final product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, and finally the quality control is used for judging whether the produced far infrared antibacterial organic silicon nitrogen flame retardant fiber is qualified, so that the application range of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is greatly expanded;
further, the far infrared antimicrobial organic silicon nitrogen flame retardant fiber may play an important role in various application fields, including but not limited to the following fields:
antibacterial textiles: used for manufacturing antibacterial textile products such as antibacterial bedding, antibacterial clothes and antibacterial masks, and helps to inhibit the growth of bacteria and fungi and provide a healthier use environment.
Medical supplies: the antimicrobial properties make it suitable for use in medical applications such as medical apparel, surgical drapes and medical bandages, reducing the risk of cross-infection.
Flame retardant textile: the organic silicon nitrogen flame retardant property makes the organic silicon nitrogen flame retardant material capable of being used for producing flame retardant textiles such as flame retardant work clothes, flame retardant curtains and flame retardant bedding articles, and improves fire safety.
Far infrared ray treatment: the far infrared ray emitting characteristic can be used for manufacturing far infrared ray therapeutic equipment for rehabilitation, relaxation of muscles and promotion of blood circulation.
Embodiment two:
referring to fig. 1, a method for producing a far infrared antibacterial organic silicon nitrogen flame retardant fiber comprises the following steps:
step S1: preparing a cellulose solution;
step S2: injecting before spinning;
step S3: spinning;
step S4: refining;
step S5: a post-treatment method;
step S6: quality control;
further, the quality control further includes:
(1) Raw material inspection:
checking supplier reputation and compliance of the raw materials;
testing chemical components and physical properties of the raw materials;
ensuring that the raw materials meet corresponding standards and specifications;
(2) And (3) controlling a production process:
ensuring that the production process accords with the set process parameters and flow;
monitoring key links in the production process, such as fiber synthesis, flame retardant treatment, antibacterial treatment and the like;
the state of production equipment is checked regularly, so that normal operation is ensured;
(3) Product performance test:
performing far infrared radiation test to ensure that the fiber has expected far infrared radiation characteristics;
performing antibacterial performance test to verify the antibacterial effect of the fiber;
and (5) performing a flame retardant performance test to ensure that the fiber has expected flame retardant performance.
Embodiment III:
referring to fig. 1 and 2, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
step S1, preparing a cellulose solution:
materials: selecting high-quality pine wood, crushing the high-quality pine wood into wood chips, and then crushing the wood chips to obtain cellulose powder with the granularity of 100-200 meshes and an organic solvent N-methylmorpholine-N-oxide;
the device comprises: a heater and a dissolver;
the operation steps are as follows: firstly, placing cellulose powder with the granularity of 100-200 meshes into a heater, heating to 65 ℃, then adding an organic solution into the heater, uniformly mixing and stirring, then placing the cellulose solution with the granularity of 65 ℃ into a dissolver to completely dissolve the cellulose powder and the organic solution to prepare a cellulose solution, and then adding a dilute hydrochloric acid solution and a 0.1M sodium hydroxide solution to enable the pH value of the cellulose solution to be between 4 and 7;
the quality and stability of the cellulose solution are improved by controlling the granularity of the cellulose powder, preparing the temperature of the cellulose solution and adjusting the pH value, the internal structure and mechanical property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved, the fiber is more wear-resistant and durable, and the fiber is further used for preparing spinning glue with higher quality in the later period;
the production method of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber in the step S1 further comprises the following steps:
(1) Drying the cellulose powder in a heating mode by a heater to evaporate excessive water in the cellulose powder, and keeping the water content of the dried cellulose powder at 2% -5%;
(2) Solvent: the organic solvent N-methyl morphidine-N-oxide is selected to dissolve cellulose powder, so that the cellulose powder is effectively dissolved to prepare a cellulose solution, and the cellulose content is controlled to be 28% when the cellulose solution is prepared, so that the purity of the prepared cellulose solution is suitable for the production and preparation of far infrared antibacterial organic silicon nitrogen flame-retardant fibers;
(3) Controlling the dissolution temperature: the dissolution temperature is controlled to be about 65 ℃, so that the dissolution speed of cellulose powder is increased, and the dissolution efficiency is improved;
(4) Stirring: in the dissolving process, the cellulose powder is fully contacted with the organic solvent in a stirring manner, so that the mixing of the cellulose powder and the solvent is promoted, and the dissolving speed is increased;
(5) Adjusting the pH value of the cellulose solution: selecting a solvent with pH value, and controlling the pH value of the cellulose solution to be between 4 and 7;
further, the notice of keeping the cellulose powder dry: the method has the advantages that the problem that the cellulose powder is too dry and difficult to dissolve due to the fact that the water content in the powder is too low is avoided, the cellulose powder is too wet due to the fact that the water content is too high, caking is easy to occur, and the purity of the cellulose solution manufactured in the later period is affected.
Embodiment four:
referring to fig. 1 and 3, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
step S2, injection before spinning:
the injection before spinning is a key link of mixing the cellulose solution and the organic silicon nitrogen composite flame retardant, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is ensured;
materials: (1) preparing a novel organic silicon nitrogen composite flame retardant: selecting 25% of organosilane hydrolysis dispersion liquid, 12.2% of polyboronic acid ester, 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent;
(2) Functional auxiliary agent: 0.8% of nano material and 1% of antioxidant;
(3) A cellulose solution having a concentration of 28%;
the device comprises: a mixer and a syringe;
the operation steps are as follows: putting 25% of organosilane hydrolysis dispersion liquid and 12.2% of polyboronic acid ester into a mixer for mixing, then adding 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent, stirring uniformly to prepare a novel organic silicon nitrogen composite flame retardant, then putting the novel organic silicon nitrogen composite flame retardant into a syringe, improving the dispersibility and uniformity of the novel organic silicon nitrogen composite flame retardant in a cellulose solution by adjusting the injection pressure of the syringe to 8MPa and controlling the mixing temperature to 95 ℃, mixing the flame retardant with the cellulose solution for 35 minutes, then sequentially adding 0.8% of nano material and 1% of antioxidant into the mixed solution, and stirring uniformly again to prepare spinning gel;
the step S2 of the injection method before spinning further comprises the following contents:
developing a novel organic silicon nitrogen flame retardant to further improve the flame retardant property and the environmental protection property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber;
(1) The structure and the chemical component content of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are better controlled by optimizing the injection process before spinning, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is enhanced, and the flame retardant is more uniformly distributed in the far infrared antibacterial organic silicon nitrogen flame-retardant fiber due to reasonable injection pressure and mixing temperature parameters, so that the flame retardant effect is improved;
(2) The added functional auxiliary nano material and antioxidant are used for enhancing the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber;
further, the mechanical property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is improved by optimizing the injection process before spinning, and the molecular chains inside the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are more orderly arranged by reasonably controlling the injection speed and the injection pressure, so that the strength and the toughness of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved, the quality of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is improved, and the service life of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is prolonged.
Fifth embodiment:
referring to fig. 1 and 4, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
step S3, spinning:
the spinning process is used for improving the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber;
materials: selecting spinning glue configured in the step S2;
the device comprises: a spinning machine and a yarn winding machine;
the operation steps are as follows: the spinning glue is sprayed out from a spinneret to spin by adjusting the spinning pressure to 260MPa and the aperture of the spinneret to 1.2mm, and then the temperature of a coagulating bath is controlled to be 110 ℃, so that the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are improved, the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are coagulated and molded by the coagulating bath, and after washing and pickling treatment, a flame-retardant primary product of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is obtained, and the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is further improved;
further, the spinning technique works as follows:
fiber formation: the spinning technology is used for converting the original spinning gel into a continuous fiber form, and the required fiber shape and diameter can be prepared through the spinning technology;
controlling the fineness of the fibers: the fineness of the fibers is controlled by adjusting the spinning aperture and the spinning distance of the spinning technology so as to meet the requirements of product design, and fibers with different fineness may be required for different applications;
mixing additives: during the spinning process, antimicrobial and flame retardant additives may also be added and dispersed uniformly throughout the fiber, ensuring that these properties are uniformly distributed throughout the fiber, thereby providing consistent performance;
example six:
referring to fig. 1 and 5, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
step S4, refining:
(1) And (3) fixing and crosslinking: the obtained flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is put into a fixed crosslinking liquid for soaking, the heating temperature is controlled to be 200 ℃, and after 8 minutes, the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is fully fixed and crosslinked;
(2) Washing: placing the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking into water for cleaning, and cleaning for more than three times to ensure that residual fixed crosslinking liquid and impurities of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking are removed by 95%;
(3) Oiling: the primary product of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber after water washing is put into an oiling agent to be soaked and oiled, the oil temperature is controlled to be 28 ℃, and after 20 minutes of soaking, the softness and antistatic performance of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved;
(4) And (3) drying: taking out the oily far infrared antibacterial organic silicon nitrogen flame-retardant fiber primary product from the oiling agent, draining excessive oiling agent, putting into a baking oven for baking, controlling the baking temperature to be 120 ℃, and baking for 10 minutes, and removing residual moisture and oiling agent to obtain a far infrared antibacterial organic silicon nitrogen flame-retardant fiber final product;
further, the refining function is as follows:
the fiber quality is improved: the refining process can improve the quality of the fiber, eliminate and reduce impurities, non-uniformities and impurities therein, and help ensure consistent quality and performance of the final fiber product;
and (3) fiber morphology adjustment: by refining, the shape of the fiber, such as the length and diameter of the fiber, can be adjusted to meet the requirements of product design, and the fiber with the required characteristics can be produced;
uniformity improvement: refining can help to enhance the uniform distribution of the novel silicone nitrogen flame retardant added to the fiber throughout the fiber, thereby providing consistent performance;
performance optimization: by refining, the physical properties of the fibers, such as strength, ductility and durability, can be optimized, ensuring that they exhibit excellent properties in practical use.
Embodiment seven:
referring to fig. 1, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
step S5, a post-processing method:
the post-treatment method comprises the following specific steps of:
padding and baking method: padding the far infrared antibacterial organic silicon nitrogen flame-retardant fiber in a 20% antibacterial agent solution for two hours to enable the antibacterial agent to permeate into the far infrared antibacterial organic silicon nitrogen flame-retardant fiber so as to achieve the aim of improving antibacterial property, then fishing out and draining the redundant solution from the antibacterial agent solvent, and then baking the far infrared antibacterial organic silicon nitrogen flame-retardant fiber for 7 minutes at 100 ℃ to enable the antibacterial agent to be fixed in the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, thereby improving the antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber;
further: the effect of the post-treatment method also comprises:
fire resistance of reinforcing fibers: for the flame-retardant fiber, the post-treatment method can enhance the flame retardant property of the fiber, so that the fiber is more difficult to burn or has slower burning speed when being subjected to a fire source, and the fire safety of the fiber is improved;
improving the durability of the fiber: the post-treatment can improve the durability of the fiber and make the fiber more resistant to the influence of factors such as abrasion, chemical corrosion, ultraviolet radiation and the like;
improved softness and comfort of the fibers: the post-treatment can improve the hand, softness and comfort of the fibers, making them more suitable for direct skin contact applications.
Color and appearance adjustment: the post-treatment method can also be used for adjusting the color, appearance and texture of the fiber to meet the design requirement of the clothing.
Environmental protection performance improvement: the post-treatment process may include environmental measures such as wastewater treatment and waste management to ensure that the production process meets environmental regulations and standards.
Example eight:
referring to fig. 1 and 6, a far infrared antibacterial organic silicon nitrogen flame retardant fiber and a production method thereof further comprise the following steps:
s6, quality control:
the quality control is carried out by physically detecting the final product of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, and determining whether the stability, flame retardant property, far infrared emission property and antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are qualified or not, wherein the specific contents are as follows:
(1) Stability performance: the test method of stability performance selects a thermal stability test, wherein the thermal stability test is to observe the change condition of physical properties of a sample by heating the sample to 100 ℃ and keeping the sample for 20 minutes;
(2) Flame retardant properties: the method for testing the flame retardant property comprises the steps of selecting a vertical burning test and a horizontal burning test, wherein the vertical burning test and the horizontal burning test are carried out by cutting a sample into specified sizes of 150mm multiplied by 50mm multiplied by 5mm, then burning the sample, and observing the burning speed and flame spreading condition after burning for 30 minutes so as to evaluate the flame retardant property;
(3) Far infrared emission performance: detecting far infrared emissivity of the flame-retardant fiber end product by an infrared spectrometer, placing a sample to be tested under the high temperature condition of 150 ℃, and testing infrared radiation intensity within the wavelength range of 2.5-25 mu m so as to evaluate the far infrared emission performance;
(4) Antibacterial properties: the antibacterial performance of the flame-retardant fiber end product is evaluated by adopting a quantitative method, a minimum sterilization concentration method is selected by adopting the quantitative method, and the antibacterial effect is evaluated by inoculating a sample to be tested on a culture medium, culturing for a certain time, observing the growth condition of bacteria and counting;
further: the quality control also includes the following:
product consistency: the quality control can ensure that the fibers produced in each batch have consistency in physical properties, chemical components, sizes and other key aspects, and is helpful for avoiding product variation and ensuring that the products in different batches are similar in performance;
chemical component analysis: quality control includes analysis of chemical components in the fiber, ensuring that the added organosilicon, nitrogen flame retardant and other chemical components meet specifications and are within safe limits;
size inspection: the size and diameter of the fibers also need to be checked to ensure that they meet the requirements of the product design, especially in the case of textile or other applications where specific dimensions are required;
environmental protection standard obeys: quality control ensures that the production process meets environmental regulations, including wastewater treatment and waste management requirements;
label and packaging: quality control also encompasses labeling and packaging of the product, ensuring that the product's identity and packaging meet regulatory laws and standards, while providing the necessary information for proper use of the product.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in several specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A far infrared antibacterial organic silicon nitrogen flame-retardant fiber is characterized in that: the far infrared antibacterial organic silicon nitrogen flame-retardant fiber has the advantages that:
(1) The stable performance is good;
(2) The flame retardant property is enhanced;
(3) The far infrared emission performance is good;
(4) The antibacterial performance is good;
the prepared novel organic silicon nitrogen flame retardant is mixed with the prepared cellulose solution through injection before spinning and then uniformly stirred to form spinning glue, then the spinning glue spinning method is used for preparing a primary product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, the refining method and the post-treatment method are used for preparing a final product of the far infrared antibacterial organic silicon nitrogen flame retardant fiber, and finally the quality control is used for judging whether the produced far infrared antibacterial organic silicon nitrogen flame retardant fiber is qualified, so that the application range of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is greatly expanded.
2. A method for producing far infrared antibacterial organic silicon nitrogen flame-retardant fiber, which is applicable to the far infrared antibacterial organic silicon nitrogen flame-retardant fiber in claim 1, and is characterized in that: the production method of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber comprises the following steps:
step S1: preparing a cellulose solution;
step S2: injecting before spinning;
step S3: spinning;
step S4: refining;
step S5: a post-treatment method;
step S6: and (5) quality control.
3. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: the step S1 is to prepare a cellulose solution:
materials: selecting high-quality pine wood, crushing the high-quality pine wood into wood chips, and then crushing the wood chips to obtain cellulose powder with the granularity of 100-200 meshes and an organic solvent N-methylmorpholine-N-oxide;
the device comprises: a heater and a dissolver;
the operation steps are as follows: firstly, placing cellulose powder with the granularity of 100-200 meshes into a heater, heating to 65 ℃, then adding an organic solution into the heater, uniformly mixing and stirring, then placing the cellulose solution with the granularity of 65 ℃ into a dissolver to completely dissolve the cellulose powder and the organic solution to prepare a cellulose solution, and then adding a dilute hydrochloric acid solution and a 0.1M sodium hydroxide solution to enable the pH value of the cellulose solution to be between 4 and 7;
the quality and stability of the cellulose solution are improved by controlling the granularity of the cellulose powder, the temperature for preparing the cellulose solution and the method for adjusting the pH value, so that the internal structure and mechanical property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved, the fiber is more wear-resistant and durable, and the fiber is further used for preparing spinning glue with higher quality in the later period.
4. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: step S2, injection before spinning:
the injection before spinning is a key link of mixing the cellulose solution and the organic silicon nitrogen composite flame retardant, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber is ensured;
materials: (1) preparing a novel organic silicon nitrogen composite flame retardant: selecting 25% of organosilane hydrolysis dispersion liquid, 12.2% of polyboronic acid ester, 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent;
(2) Functional auxiliary agent: 0.8% of nano material and 1% of antioxidant;
(3) A cellulose solution having a concentration of 28%;
the device comprises: a mixer and a syringe;
the operation steps are as follows: the preparation method comprises the steps of putting 25% of organosilane hydrolysis dispersion liquid and 12.2% of polyboronic acid ester into a mixer for mixing, then adding 14% of amino silicone oil, 12% of organic resin, 2% of dispersing agent and 5% of polymerization auxiliary agent, stirring uniformly to prepare a novel organic silicon nitrogen composite flame retardant, putting the novel organic silicon nitrogen composite flame retardant into a syringe, improving the dispersibility and uniformity of the novel organic silicon nitrogen composite flame retardant in a cellulose solution by adjusting the injection pressure of the syringe to 8MPa and controlling the mixing temperature to 95 ℃, mixing the flame retardant with the cellulose solution for 35 minutes, then sequentially adding 0.8% of nano material and 1% of antioxidant into the mixed solution, and stirring uniformly again to prepare the spinning gel.
5. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: and step S3, spinning:
the spinning process is used for improving the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber;
materials: selecting spinning glue configured in the step S2;
the device comprises: a spinning machine and a yarn winding machine;
the operation steps are as follows: the spinning glue is sprayed out from a spinneret to spin by adjusting the spinning pressure to 260MPa and the diameter of the spinneret to be 1.2mm, and then the temperature of a coagulating bath is controlled to be 110 ℃, so that the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are improved, the structure and performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber spinning are coagulated and molded by the coagulating bath, and then a primary flame-retardant far infrared antibacterial organic silicon nitrogen flame-retardant fiber product is obtained after washing and pickling treatment, and the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is further improved.
6. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: and step S4, refining:
(1) And (3) fixing and crosslinking: the obtained flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is put into a fixed crosslinking liquid for soaking, the heating temperature is controlled to be 200 ℃, and after 8 minutes, the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber preliminary product is fully fixed and crosslinked;
(2) Washing: placing the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking into water for cleaning, and cleaning for more than three times to ensure that residual fixed crosslinking liquid and impurities of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product after fixed crosslinking are removed by 95%;
(3) Oiling: the primary product of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber after water washing is put into an oiling agent to be soaked and oiled, the oil temperature is controlled to be 28 ℃, and after 20 minutes of soaking, the softness and antistatic performance of the flame-retardant far-infrared antibacterial organic silicon nitrogen flame-retardant fiber are improved;
(4) And (3) drying: and (3) taking out the oily far-infrared antibacterial organic silicon nitrogen flame-retardant fiber initial product from the oiling agent, draining the excessive oiling agent, putting the obtained product into a baking oven for baking, controlling the baking temperature to be 120 ℃, and baking for 10 minutes, and removing residual moisture and oiling agent to obtain the far-infrared antibacterial organic silicon nitrogen flame-retardant fiber final product.
7. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: the step S5, the post-processing method comprises the following steps:
the post-treatment method comprises the following specific steps of:
padding and baking method: the method comprises the steps of padding far infrared antibacterial organic silicon nitrogen flame-retardant fibers in a 20% antibacterial agent solution for two hours to enable the antibacterial agent to permeate into the far infrared antibacterial organic silicon nitrogen flame-retardant fibers, achieving the aim of improving antibacterial property, then fishing out and draining redundant solution from an antibacterial agent solvent, then baking the far infrared antibacterial organic silicon nitrogen flame-retardant fibers for 7 minutes, wherein the baking temperature is 100 ℃, and fixing the antibacterial agent in the far infrared antibacterial organic silicon nitrogen flame-retardant fibers, so that the antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fibers is improved.
8. The method for producing the far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 2, which is characterized in that: and S6, quality control:
the quality control is carried out by physically detecting the final product of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber, and determining whether the stability, flame retardant property, far infrared emission property and antibacterial property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are qualified or not, wherein the specific contents are as follows:
stability performance: the test method of stability performance selects a thermal stability test, wherein the thermal stability test is to observe the change condition of physical properties of a sample by heating the sample to 100 ℃ and keeping the sample for 20 minutes;
flame retardant properties: the method for testing the flame retardant property comprises the steps of selecting a vertical burning test and a horizontal burning test, wherein the vertical burning test and the horizontal burning test are carried out by cutting a sample into specified sizes of 150mm multiplied by 50mm multiplied by 5mm, then burning the sample, and observing the burning speed and flame spreading condition after burning for 30 minutes so as to evaluate the flame retardant property;
far infrared emission performance: detecting far infrared emissivity of the flame-retardant fiber end product by an infrared spectrometer, placing a sample to be tested under the high temperature condition of 150 ℃, and testing infrared radiation intensity within the wavelength range of 2.5-25 mu m so as to evaluate the far infrared emission performance;
(4) Antibacterial properties: the antibacterial performance of the flame-retardant fiber end product is evaluated by adopting a quantitative method, the minimum sterilization concentration method is selected by the quantitative method, and the antibacterial effect is evaluated by inoculating a sample to be tested on a culture medium, culturing for a certain time, observing the growth condition of bacteria and counting.
9. A method for producing a far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 3, which is characterized in that: the step S1 further includes the following steps:
step S11: (1) Drying the cellulose powder in a heating mode by a heater to evaporate excessive water in the cellulose powder, and keeping the water content of the dried cellulose powder at 2% -5%;
(2) Solvent: the organic solvent N-methyl morphidine-N-oxide is selected to dissolve cellulose powder, so that the cellulose powder is effectively dissolved to prepare a cellulose solution, and the cellulose content is controlled to be 28% when the cellulose solution is prepared, so that the purity of the prepared cellulose solution is suitable for the production and preparation of far infrared antibacterial organic silicon nitrogen flame-retardant fibers;
(3) Controlling the dissolution temperature: the dissolution temperature is controlled to be about 65 ℃, so that the dissolution speed of cellulose powder is increased, and the dissolution efficiency is improved;
(4) Stirring: in the dissolving process, the cellulose powder is fully contacted with the organic solvent in a stirring manner, so that the mixing of the cellulose powder and the solvent is promoted, and the dissolving speed is increased;
(5) Adjusting the pH value of the cellulose solution: and selecting a pH value solvent, and controlling the pH value of the cellulose solution to be between 4 and 7.
10. A method for producing a far infrared antibacterial organic silicon nitrogen flame retardant fiber according to claim 3, which is characterized in that: the step S2 further includes the following steps:
s21, developing a novel organic silicon nitrogen flame retardant to further improve the flame retardant property and the environmental protection property of the far infrared antibacterial organic silicon nitrogen flame retardant fiber;
(1) The structure and the chemical component content of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber are better controlled by optimizing the injection process before spinning, so that the flame retardant property of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber is enhanced, and the flame retardant is more uniformly distributed in the far infrared antibacterial organic silicon nitrogen flame-retardant fiber due to reasonable injection pressure and mixing temperature parameters, so that the flame retardant effect is improved;
(2) The added functional auxiliary nano material and antioxidant can enhance the far infrared emission performance of the far infrared antibacterial organic silicon nitrogen flame-retardant fiber.
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