CN111334880A - Photochromic lyocell fibers and method for making same - Google Patents

Photochromic lyocell fibers and method for making same Download PDF

Info

Publication number
CN111334880A
CN111334880A CN202010196094.XA CN202010196094A CN111334880A CN 111334880 A CN111334880 A CN 111334880A CN 202010196094 A CN202010196094 A CN 202010196094A CN 111334880 A CN111334880 A CN 111334880A
Authority
CN
China
Prior art keywords
photochromic
spinning
lyocell
raw material
fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010196094.XA
Other languages
Chinese (zh)
Other versions
CN111334880B (en
Inventor
叶兆清
董雄伟
叶小波
胡志钢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dangyang Hongyang New Material Technology Co ltd
Original Assignee
Dangyang Hongyang New Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dangyang Hongyang New Material Technology Co ltd filed Critical Dangyang Hongyang New Material Technology Co ltd
Priority to CN202010196094.XA priority Critical patent/CN111334880B/en
Publication of CN111334880A publication Critical patent/CN111334880A/en
Application granted granted Critical
Publication of CN111334880B publication Critical patent/CN111334880B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H6/00Macromolecular compounds derived from lignin, e.g. tannins, humic acids

Abstract

The invention discloses photochromic lyocell fiber and a preparation method thereof, wherein the photochromic lyocell fiber is prepared by mixing photochromic raw materials into lyocell fiber raw material spinning solution for spinning; the mass ratio of the photochromic raw material to the lyocell fiber raw material is 1: 25-35; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal. The fiber has good photochromic characteristic and stable performance, and the preparation method of the fiber is simple and has low cost.

Description

Photochromic lyocell fibers and method for making same
Technical Field
The invention relates to the technical field of lyocell fibers, in particular to photochromic lyocell fibers and a preparation method thereof.
Background
Currently, with the increasing living standard of people, various clothes with special properties are developed, such as: antibacterial, waterproof, wrinkle-resistant, antistatic, etc. Among these garments, photochromic functional garments are popular among people, particularly in the fields of magic artists, camouflage in the military, apparel for children, and the like. With the rapid development of photochromic materials, the rapid development of photochromic clothes is driven.
Lyocell, as a new type of renewable cellulose fiber, has many advantages, such as: short production period, little environmental pollution, easy degradation after use, easy dyeing, good hand feeling, skin affinity, high mechanical strength, durability and the like, thus being praised as one of 21 novel fibers with most development potential. Lyocell fibers are used in various textile materials due to their excellent properties, such as: the chinese patent application No. 201810758129.7 reports an antibacterial textile material containing a large amount of lyocell fibers; chinese patent application No. 201711186225.0 reports a close-fitting, warm-keeping and comfortable cheongsam that also contains a large amount of lyocell fibers. Literature investigations have shown that lyocell fibres are of great interest.
The main component of the lyocell fiber is cellulose, if the cellulose is directly combined with the photochromic monomer, the combination force of the cellulose and the photochromic monomer is weak, and the photochromic monomer can fall off after being washed for many times, thereby influencing the photochromic performance of the lyocell fiber. Therefore, finding an effective way to achieve a strong bond between lyocell fibers and photochromic monomers is a difficult point to overcome in preparing excellent photochromic lyocell fibers.
Disclosure of Invention
The invention provides photochromic lyocell fiber and a preparation method thereof, and the fiber has good photochromic characteristic, stable performance, simple fiber preparation method and low cost.
The technical scheme of the invention is that the photochromic lyocell fiber is prepared by mixing photochromic raw materials into a lyocell fiber raw material spinning solution for spinning; the mass ratio of the photochromic raw material to the lyocell fiber raw material is 1: 25-35; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal.
In a preferable scheme, the mass ratio of the photochromic raw material to the lyocell fiber raw material is 1: 28-30.
Furthermore, in the spinning solution, the solvent is NMMO, and the mass concentration of the spinning solution prepared finally is 12-15%.
In a more preferable scheme, the preparation method of the modified photochromic lignin comprises the following steps: dissolving sodium lignosulfonate in water, dissolving 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone in N, N-dimethylformamide, dissolving ammonium persulfate in water to prepare an ammonium persulfate aqueous solution, respectively and simultaneously dropwise adding the N, N-dimethylformamide and the ammonium persulfate aqueous solution in which the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone are dissolved into the sodium lignosulfonate aqueous solution, preserving heat for 2-3 hours after dropwise adding is finished, and controlling the reaction temperature to be 70-80; and (3) distilling the solution under reduced pressure after the reaction is finished to obtain a solid precipitate, namely the modified photochromic lignin.
The involved reaction formula is as follows:
Figure BDA0002417666850000021
furthermore, the mass ratio of the sodium lignosulfonate to the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone and the ammonium persulfate is 10-12:1: 2-5.
The invention also relates to a process for preparing the photochromic lyocell fibre, comprising the steps of:
1) preparing a spinning solution: dissolving photochromic raw materials and cotton pulp into an NMMO aqueous solution, and stirring and dissolving in a reaction kettle at 115-130 ℃ in vacuum for 3-5 hours to prepare a spinning solution;
2) spinning of lyocell fibers: adding the spinning solution into a screw extruder, further dissolving at 96-115 ℃, then filtering, entering a spinning system for spinning, vertically stretching the sprayed silk yarns in the air, entering a coagulating bath, and coagulating and forming;
3) and (3) water washing of the fiber: soaking the fiber treated in the step 2) into hot water at the temperature of 70-85 ℃ for washing, wherein the washing time is 3-5 minutes, and the bath ratio is 1: 20-25;
4) oiling the fibers: immersing the fibers treated in the step 3) into 3-4 g/L oil bath solution, wherein the oil bath temperature is 80-85 ℃, the time is 3-5 minutes, and the bath ratio is 1: 15-20;
5) drying the fibers: and (3) drying the fiber treated in the step 4) to obtain the photochromic lyocell fiber.
Further, in the step 1), the initial concentration of the NMMO aqueous solution is 49-54%, reduced pressure distillation is firstly carried out until the concentration reaches 95-98%, and then photochromic raw materials and cotton pulp meal are added.
Further, the mass concentration of the spinning solution obtained in the step 1) is 12-15%.
Further, in the step 2), during spinning, the length of an air gap in a spinning system is 7-9 cm, the spinning speed is 35-55 m/min, the aperture of a spinneret plate is 15-115 mu m, and the length of a capillary tube is 350-800 mu m.
Further, in the step 2), the temperature of the coagulation bath is 0-14 ℃ when the concentration of the NMMO aqueous solution in the coagulation bath is 10-14%.
The invention has the following beneficial effects:
1. the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone has photochromic performance, but the solubility of the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone in NMMO is poor.
Figure BDA0002417666850000031
2. The modified photochromic lignin and the lyocell cellulose have strong binding capacity, the photochromic lyocell fiber prepared by the method has the photochromic performance which is not weakened after being washed for many times, and the raw materials adopted during the preparation process have wide sources, low price, small pollution to the environment during the production process, and better application and popularization prospects.
3. The photochromic lyocell fiber prepared by the method has the dry breaking strength of 49-50 cN/tex, the dry breaking elongation of 16-18%, the wet breaking strength of 37-38 cN/tex and the wet breaking elongation of 15-16%. From the test result of mechanical property, the mechanical property of the photochromic lyocell fiber is superior to that of the common lyocell fiber after the modified photochromic lignin is added.
Detailed Description
The invention will be further elucidated with reference to the following examples.
The specific preparation method of the modified photochromic lignin comprises the following steps:
dissolving 2kg of sodium lignosulfonate in 30L of deionized water, dissolving 0.1kg of 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone in 30L N, N-dimethylformamide, dissolving 0.2-0.5 kg of ammonium persulfate in 30L of deionized water to prepare an ammonium persulfate aqueous solution, respectively and simultaneously dropwise adding the N, N-dimethylformamide dissolved with the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone and the ammonium persulfate aqueous solution to the sodium lignosulfonate aqueous solution, preserving heat for 2-3 hours after dropwise adding is finished, and controlling the reaction temperature to be 70-80. And (3) distilling the solution under reduced pressure after the reaction is finished to obtain a solid precipitate, namely the modified photochromic lignin.
Example 1:
photochromic lyocell fiber is prepared by mixing photochromic raw materials into a lyocell fiber raw material spinning solution for spinning; the mass ratio of photochromic raw material to lyocell fiber raw material is 1: 30; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal.
The preparation method comprises the following steps:
(1) preparing a spinning solution: and distilling 49% by mass of NMMO aqueous solution under reduced pressure to 96% by mass of NMMO aqueous solution, dissolving the modified photochromic lignin and cotton pulp meal in the NMMO aqueous solution, and stirring and dissolving in a reaction kettle at 125-130 ℃ in vacuum for 3 hours to prepare a uniform spinning solution with 13% by mass. Wherein the mass ratio of the modified photochromic lignin to the cotton pulp meal is 1: 30.
(2) Spinning of lyocell fibers: adding the spinning solution treated in the step (1) into a screw extruder, further dissolving at 96-115 ℃, then filtering, and entering a spinning system, wherein the main parameters of the spinning system are controlled as follows: the length of the air gap is 7-9 cm, the spinning speed is 35-55 m/min, the aperture of the spinneret plate is 15-115 mu m, and the length of the capillary tube is 350-800 mu m. And (3) vertically stretching the sprayed silk in the air, feeding the silk into a coagulating bath, and coagulating and forming, wherein the coagulating bath is an NMMO (N-methyl-amino-methyl-N-methyl-MO) aqueous solution with the mass concentration of 10-14%, and the temperature of the coagulating bath is 0-14 ℃.
(3) And (3) water washing of the fiber: immersing the fiber treated in the step (2) into hot water at the temperature of 70-85 ℃ for 3-5 minutes at a bath ratio of 1: 20-25.
(4) Oiling the fibers: and (3) immersing the fibers treated in the step (3) into 3-4 g/L oil bath solution, wherein the oil bath temperature is 80-85 ℃, the time is 3-5 minutes, and the bath ratio is 1: 15-20.
(5) Drying the fibers: and (4) drying the fiber treated in the step (4) to obtain the photochromic lyocell fiber a.
Example 2:
photochromic lyocell fiber is prepared by mixing photochromic raw materials into a lyocell fiber raw material spinning solution for spinning; the mass ratio of photochromic raw material to lyocell fiber raw material is 1: 25; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal.
The preparation method comprises the following steps:
(1) preparing a spinning solution: distilling the NMMO aqueous solution with the mass fraction of 50% to the NMMO aqueous solution with the mass fraction of 98%, dissolving the modified photochromic lignin and cotton pulp meal in the NMMO aqueous solution, and stirring and dissolving in a reaction kettle at 115-120 ℃ in vacuum for 3 hours to prepare the uniform spinning solution with the mass fraction of 12%. Wherein the mass ratio of the modified photochromic lignin to the cotton pulp meal is 1: 25.
(2) Spinning of lyocell fibers: adding the spinning solution treated in the step (1) into a screw extruder, further dissolving at 96-115 ℃, then filtering, and entering a spinning system, wherein the length of an air gap is 7-9 cm, the spinning speed is 35-55 m/min, the pore diameter of a spinneret plate is 15-115 mu m, and the length of a pore capillary is 350-800 mu m; the sprayed silk threads are vertically stretched in the air, enter a coagulating bath, and are coagulated and formed, wherein the coagulating bath is an NMMO (N-methyl-MO) aqueous solution with the concentration of 10-14%, and the temperature of the coagulating bath is 0-14 ℃.
(3) And (3) water washing of the fiber: immersing the fiber treated in the step (2) into hot water at the temperature of 70-85 ℃ for 3-5 minutes at a bath ratio of 1: 20-25.
(4) Oiling the fibers: and (3) immersing the fibers treated in the step (3) into 3-4 g/L oil bath solution, wherein the oil bath temperature is 80-85 ℃, the time is 3-5 minutes, and the bath ratio is 1: 15-20.
(5) Drying the fibers: and (4) drying the fiber treated in the step (4) to obtain the photochromic lyocell fiber b.
Example 3:
photochromic lyocell fiber is prepared by mixing photochromic raw materials into a lyocell fiber raw material spinning solution for spinning; the mass ratio of photochromic raw material to lyocell fiber raw material is 1: 35; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal.
The preparation method comprises the following steps:
(1) preparing a spinning solution: and distilling the NMMO aqueous solution with the mass fraction of 53% to the NMMO aqueous solution with the mass fraction of 95%, dissolving photochromic organic matter modified photochromic lignin and cotton pulp meal in the NMMO aqueous solution, and stirring and dissolving in a reaction kettle at 120-130 ℃ for 4 hours in vacuum to prepare the uniform spinning solution with the mass fraction of 15%. Wherein the mass ratio of the modified photochromic lignin to the cotton pulp meal is 1: 35.
(2) Spinning of lyocell fibers: adding the spinning solution treated in the step (1) into a screw extruder, further dissolving at 96-115 ℃, then filtering, and entering a spinning system, wherein the length of an air gap is 7-9 cm, the spinning speed is 35-55 m/min, the pore diameter of a spinneret plate is 15-115 mu m, and the length of a pore capillary is 350-800 mu m; and (3) vertically stretching the sprayed silk in the air, feeding the silk into a coagulating bath, and coagulating and forming, wherein the coagulating bath is an NMMO (N-methyl-amino-methyl-N-methyl-MO) aqueous solution with the mass concentration of 10-14%, and the temperature of the coagulating bath is 0-14 ℃.
(3) And (3) water washing of the fiber: immersing the fiber treated in the step (2) into hot water at the temperature of 70-85 ℃ for 3-5 minutes at a bath ratio of 1: 20-25.
(4) Oiling the fibers: and (3) immersing the fibers treated in the step (3) into 3-4 g/L oil bath solution, wherein the oil bath temperature is 80-85 ℃, the time is 3-5 minutes, and the bath ratio is 1: 15-20.
(5) Drying the fibers: and (4) drying the fiber treated in the step (4) to obtain the photochromic lyocell fiber c.
The photochromic lyocell fibers obtained in examples 1 to 3 were evaluated for their properties.
(1) Photochromic performance test: photochromic lyocell fibers a, b and c prepared in the above specific examples 1 to 3 were subjected to photochromic performance test. The light source was irradiated with a 500W xenon lamp for 5 minutes, and the photochromic lyocell fibers a, b and c changed from natural (white) to blue. The photochromic lyocell fibers a, b and c were subjected to standard washing 20 times and photochromic performance test again, and as a result, it was found that the photochromic lyocell fibers a, b and c had the same photochromic performance as before washing.
(2) Testing the mechanical properties of the fibers: the photochromic lyocell fibers a, b and c prepared in the above specific embodiments 1 to 3 are subjected to a strength performance test, and the test method refers to GB/T-24218.3-2010 "test method for textile and non-woven fabric part 3: determination of breaking strength and breaking elongation, a FAVIMAT-BOBOBOT 2 full-automatic single fiber universal tester is adopted to determine the strength performance of the test samples, no less than 30 test samples are tested, and the test average value is taken. The test results are shown in table 1, wherein photochromic lyocell fibers a, b, c are abbreviated as fibers a, b, c and the lyocell fibers purchased from seohnd danau textile co.
TABLE 1 mechanical Properties of Ramie pulp Lyocell fibers a, b, c and of the purchased Lyocell fibers
Figure BDA0002417666850000061
As can be seen from Table 1, the dry breaking strength of the photochromic lyocell fibers is between 49 and 50cN/tex, which is slightly higher than that of the purchased lyocell fibers, and the dry breaking elongation of the photochromic lyocell fibers is between 16 and 18 percent, which is slightly higher than that of the purchased lyocell fibers; the wet breaking strength of the photochromic lyocell fiber is between 37 and 38cN/tex and is slightly higher than that of the purchased lyocell fiber, and the wet breaking elongation of the photochromic lyocell fiber is between 15 and 16 percent and is slightly higher than that of the purchased lyocell fiber. From the test result of mechanical property, the mechanical property of the photochromic lyocell fiber is superior to that of the purchased lyocell fiber, so that the photochromic lyocell fiber prepared by the method is qualified.

Claims (10)

1. A photochromic lyocell fiber characterized in that: the photochromic fabric is prepared by mixing photochromic raw materials into lyocell fiber raw material spinning solution for spinning; the mass ratio of the photochromic raw material to the lyocell fiber raw material is 1: 25-35; the photochromic raw material is modified photochromic lignin, and the lyocell fiber raw material is cotton pulp meal.
2. Photochromic lyocell fiber according to claim 1, characterized in that: the mass ratio of the photochromic raw material to the lyocell fiber raw material is 1: 28-30.
3. Photochromic lyocell fiber according to claim 1, characterized in that: in the spinning solution, the solvent is NMMO, and the mass concentration of the spinning solution prepared finally is 12-15%.
4. The photochromic lyocell fiber according to claim 1, wherein the modified photochromic lignin is prepared by a method comprising: dissolving sodium lignosulfonate in water, dissolving 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone in N, N-dimethylformamide, dissolving ammonium persulfate in water to prepare an ammonium persulfate aqueous solution, respectively and simultaneously dropwise adding the N, N-dimethylformamide and the ammonium persulfate aqueous solution in which the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone are dissolved into the sodium lignosulfonate aqueous solution, preserving heat for 2-3 hours after dropwise adding is finished, and controlling the reaction temperature to be 70-80; and (3) distilling the solution under reduced pressure after the reaction is finished to obtain a solid precipitate, namely the modified photochromic lignin.
5. Photochromic lyocell fibers according to claim 4, characterized in that: the mass ratio of the sodium lignosulfonate to the 6, 7-dichloro-3, 4-dihydro-1H-2-naphthalenone and the ammonium persulfate is 10-12:1: 2-5.
6. A process for preparing a photochromic lyocell fibre according to any one of claims 1 to 5, comprising the steps of:
1) preparing a spinning solution: dissolving photochromic raw materials and cotton pulp into an NMMO aqueous solution, and stirring and dissolving in a reaction kettle at 115-130 ℃ in vacuum for 3-5 hours to prepare a spinning solution;
2) spinning of lyocell fibers: adding the spinning solution into a screw extruder, further dissolving at 96-115 ℃, then filtering, entering a spinning system for spinning, vertically stretching the sprayed silk yarns in the air, entering a coagulating bath, and coagulating and forming;
3) and (3) water washing of the fiber: soaking the fiber treated in the step 2) into hot water at the temperature of 70-85 ℃ for washing, wherein the washing time is 3-5 minutes, and the bath ratio is 1: 20-25;
4) oiling the fibers: immersing the fibers treated in the step 3) into 3-4 g/L oil bath solution, wherein the oil bath temperature is 80-85 ℃, the time is 3-5 minutes, and the bath ratio is 1: 15-20;
5) drying the fibers: and (3) drying the fiber treated in the step 4) to obtain the photochromic lyocell fiber.
7. The method of claim 6, wherein: in the step 1), the initial concentration of the NMMO aqueous solution is 49-54%, reduced pressure distillation is firstly carried out until the concentration is 95-98%, and then photochromic raw materials and cotton pulp meal are added.
8. The method of claim 6, wherein: the mass concentration of the spinning solution obtained in the step 1) is 12-15%.
9. The method of claim 6, wherein: and 2) during spinning, in a spinning system, the length of an air gap is 7-9 cm, the spinning speed is 35-55 m/min, the aperture of a spinneret plate is 15-115 mu m, and the length of a pore capillary is 350-800 mu m.
10. The method of claim 6, wherein: in the step 2), the concentration of the coagulation bath is 10-14% of the aqueous solution of NMMO, and the temperature of the coagulation bath is 0-14 ℃.
CN202010196094.XA 2020-03-19 2020-03-19 Photochromic lyocell fibers and method for making same Active CN111334880B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010196094.XA CN111334880B (en) 2020-03-19 2020-03-19 Photochromic lyocell fibers and method for making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010196094.XA CN111334880B (en) 2020-03-19 2020-03-19 Photochromic lyocell fibers and method for making same

Publications (2)

Publication Number Publication Date
CN111334880A true CN111334880A (en) 2020-06-26
CN111334880B CN111334880B (en) 2020-11-03

Family

ID=71180195

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010196094.XA Active CN111334880B (en) 2020-03-19 2020-03-19 Photochromic lyocell fibers and method for making same

Country Status (1)

Country Link
CN (1) CN111334880B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112323168A (en) * 2020-11-25 2021-02-05 江苏杜为新材料科技有限公司 Photochromic fiber and preparation method thereof
CN112760978A (en) * 2021-02-01 2021-05-07 浙江松井纺织有限公司 Improved processing technology of lyocell fiber
CN114775089A (en) * 2022-05-18 2022-07-22 江苏金秋弹性织物有限公司 Preparation method of photochromic elastic ribbon based on polyacid base

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336271A (en) * 1976-09-16 1978-04-04 Seiko Epson Corp Electronic wristwatch
CN101981132A (en) * 2008-03-25 2011-02-23 德司达染料德国有限公司 Azopyridone disperse dyes, their preparation and use
CN102586917A (en) * 2012-01-11 2012-07-18 东华大学 Method for preparing fluorescent anti-counterfeiting Lyocell fibers
CN102644125A (en) * 2012-04-10 2012-08-22 山东银鹰化纤有限公司 Method for preparing polychromatic viscose fibers
CN103451934A (en) * 2013-09-11 2013-12-18 南通金仕达超微阻燃材料有限公司 Function-intensified self-cleaning material and production method thereof
CN106811997A (en) * 2017-02-07 2017-06-09 贸盛投资(福建)有限公司 A kind of Thermochromic fabric
CN107400403A (en) * 2017-06-28 2017-11-28 浙江伟星实业发展股份有限公司 A kind of Summoning slide fastener of changeable colour and preparation method thereof
CN107675278A (en) * 2017-09-29 2018-02-09 北京宇田相变储能科技有限公司 A kind of preparation method for the functional fiber element for improving functional materials effective content
US20180273657A1 (en) * 2017-03-08 2018-09-27 Agency For Science, Technology And Research Resin formulation and uses thereof
WO2019010079A1 (en) * 2017-07-06 2019-01-10 Stony Creek Colors, Inc. Dyed fibers and methods of dyeing using n,n'-diacetyl indigo
CN110699769A (en) * 2019-11-18 2020-01-17 武汉纺织大学 Method for preparing lyocell fibers by using ramie fibers as raw materials
US20200056057A1 (en) * 2018-08-17 2020-02-20 The University Of Massachusetts Synergistic flame retardant compositions and fiber blends including the same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336271A (en) * 1976-09-16 1978-04-04 Seiko Epson Corp Electronic wristwatch
CN101981132A (en) * 2008-03-25 2011-02-23 德司达染料德国有限公司 Azopyridone disperse dyes, their preparation and use
CN102586917A (en) * 2012-01-11 2012-07-18 东华大学 Method for preparing fluorescent anti-counterfeiting Lyocell fibers
CN102644125A (en) * 2012-04-10 2012-08-22 山东银鹰化纤有限公司 Method for preparing polychromatic viscose fibers
CN103451934A (en) * 2013-09-11 2013-12-18 南通金仕达超微阻燃材料有限公司 Function-intensified self-cleaning material and production method thereof
CN106811997A (en) * 2017-02-07 2017-06-09 贸盛投资(福建)有限公司 A kind of Thermochromic fabric
US20180273657A1 (en) * 2017-03-08 2018-09-27 Agency For Science, Technology And Research Resin formulation and uses thereof
CN107400403A (en) * 2017-06-28 2017-11-28 浙江伟星实业发展股份有限公司 A kind of Summoning slide fastener of changeable colour and preparation method thereof
WO2019010079A1 (en) * 2017-07-06 2019-01-10 Stony Creek Colors, Inc. Dyed fibers and methods of dyeing using n,n'-diacetyl indigo
CN107675278A (en) * 2017-09-29 2018-02-09 北京宇田相变储能科技有限公司 A kind of preparation method for the functional fiber element for improving functional materials effective content
US20200056057A1 (en) * 2018-08-17 2020-02-20 The University Of Massachusetts Synergistic flame retardant compositions and fiber blends including the same
CN110699769A (en) * 2019-11-18 2020-01-17 武汉纺织大学 Method for preparing lyocell fibers by using ramie fibers as raw materials

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AXEL NECHWATAL ET AL: "Photochromic Cellulose", 《AATCC REVIEW》 *
H.UNVER等: "Intramolecular hydrogen bonding and tautomerism in 1-[N-(4-bromophenyl)]aminomethylidene-2(1H) naphthalenone", 《JOURNAL OF CHEMICAL CRYSTALLOGRAPHY》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112323168A (en) * 2020-11-25 2021-02-05 江苏杜为新材料科技有限公司 Photochromic fiber and preparation method thereof
CN112760978A (en) * 2021-02-01 2021-05-07 浙江松井纺织有限公司 Improved processing technology of lyocell fiber
CN114775089A (en) * 2022-05-18 2022-07-22 江苏金秋弹性织物有限公司 Preparation method of photochromic elastic ribbon based on polyacid base

Also Published As

Publication number Publication date
CN111334880B (en) 2020-11-03

Similar Documents

Publication Publication Date Title
CN111334880B (en) Photochromic lyocell fibers and method for making same
CN105002592B (en) A kind of vinegar nitrile fiber and preparation method thereof
CN103741258B (en) A kind of hydrophilic polyester fibers and preparation method thereof
KR101548762B1 (en) Antistatic acrylic fiber and method for manufacturing the same
CN108691024A (en) Modified acrylic fibres and preparation method thereof containing plant extracts
CN109023621B (en) Flame-retardant antibacterial wool blended yarn
CN103266381A (en) Preparation method for moisture-absorbing and heat-radiating polyacrylonitrile yarn
CN110344131B (en) Sericin modified regenerated cellulose fiber and preparation method thereof
CN109518294A (en) A kind of grafting polyvinyl alcohol fiber and preparation method thereof and the textile made of the grafting polyvinyl alcohol fiber
CN113957557B (en) Efficient flame-retardant lyocell fiber and preparation method thereof
CN101392456A (en) Method for preparing super absorbent fiber by modification of polyvinyl alcohol fiber
CN107313123A (en) A kind of polynosic fibre and preparation method thereof
CN1294305C (en) Acrylic fiber-crosslinking plant protein composite fiber and method for manufacturing the same
CN110512339A (en) A kind of preparation method of antibacterial bacteriostatic bedclothes fabric
CN113136633B (en) Long-acting antibacterial flame-retardant double-effect lyocell fiber and preparation method thereof
JPS6037202B2 (en) water absorbent acrylic fiber
WO2019237466A1 (en) Method for preparing regenerated cellulose fiber dyeable with natural dye
CN111235659A (en) Lyocell fiber with heat storage and insulation functions and preparation method thereof
CN111394828A (en) Spinning method of polyacrylonitrile fiber
US4100143A (en) Filaments which may be cross-linked comprising at least 65% acrylonitrile and 0.5-10% N-methylol derivative of a urethane
CN110670168A (en) Highly spinnable wool keratin/silicon dioxide composite fiber and preparation method thereof
CN113293458B (en) High-strength PET (polyethylene terephthalate) polyester fiber and preparation method thereof
US3104934A (en) Polypyrrolidone treatment of polyacrylonitrile gel fibers and the product thereof
CN111826775A (en) School uniform manufacturing process based on heat storage polyacrylonitrile thermal insulation fiber fabric
CN112323168A (en) Photochromic fiber and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant