CN109864374B - High-grade pajama fabric and preparation method thereof - Google Patents
High-grade pajama fabric and preparation method thereof Download PDFInfo
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- CN109864374B CN109864374B CN201910211185.3A CN201910211185A CN109864374B CN 109864374 B CN109864374 B CN 109864374B CN 201910211185 A CN201910211185 A CN 201910211185A CN 109864374 B CN109864374 B CN 109864374B
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- 239000004744 fabric Substances 0.000 title claims abstract description 77
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- 239000000203 mixture Substances 0.000 claims abstract description 30
- -1 poly terephthalic acid 1.3 propylene glycol ester Chemical class 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 229920002972 Acrylic fiber Polymers 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 21
- 229920002334 Spandex Polymers 0.000 claims abstract description 21
- 239000004759 spandex Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000009987 spinning Methods 0.000 claims abstract description 13
- NOJQSZZIXRYAFK-UHFFFAOYSA-N propane-1,2-diol;terephthalic acid Chemical compound CC(O)CO.OC(=O)C1=CC=C(C(O)=O)C=C1 NOJQSZZIXRYAFK-UHFFFAOYSA-N 0.000 claims abstract description 9
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- 238000001035 drying Methods 0.000 claims description 30
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- 239000003242 anti bacterial agent Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 18
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 claims description 16
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- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 13
- 239000003431 cross linking reagent Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 12
- QQVIHTHCMHWDBS-UHFFFAOYSA-N perisophthalic acid Natural products OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 10
- 238000006068 polycondensation reaction Methods 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- ODKSFYDXXFIFQN-BYPYZUCNSA-N L-arginine Chemical compound OC(=O)[C@@H](N)CCCN=C(N)N ODKSFYDXXFIFQN-BYPYZUCNSA-N 0.000 claims description 9
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 8
- 238000000502 dialysis Methods 0.000 claims description 8
- 125000002795 guanidino group Chemical group C(N)(=N)N* 0.000 claims description 8
- 239000000376 reactant Substances 0.000 claims description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 8
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- 238000005303 weighing Methods 0.000 claims description 6
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- 239000006227 byproduct Substances 0.000 claims description 5
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 235000001014 amino acid Nutrition 0.000 claims description 4
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- 239000003054 catalyst Substances 0.000 claims description 4
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
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- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- NGJUYARYEXGDNN-UHFFFAOYSA-N 1-[3-(dimethylamino)propyl]-3-ethylurea Chemical compound CCNC(=O)NCCCN(C)C NGJUYARYEXGDNN-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a high-grade pajama fabric and a preparation method thereof, wherein silk fibers, cotton fibers, far infrared fibers, 1.3 propylene glycol terephthalate, spandex fibers and acrylic fibers are selected as raw materials and weighed; respectively pretreating the raw materials, and then uniformly mixing the silk fibers, the cotton fibers and the far infrared fibers in a mixing device to prepare a first mixture; and the poly terephthalic acid 1.3 propylene glycol ester, the spandex fiber and the acrylic fiber are uniformly mixed in a mixing device to prepare a second mixture; drawing the first mixture outside the second mixture through a conjugate spinning assembly; the fabric prepared by the method has good antibacterial property and antistatic property, and various effects are not obviously reduced after washing for several times; meanwhile, the elasticity, comfort and health care function are improved; be provided with and soak hot press unit for dyeing and finishing is efficient, and is effectual, and the dip-dyeing is even.
Description
Technical Field
The invention relates to the technical field of fabrics, in particular to a high-grade pajama fabric and a preparation method thereof.
Background
Nowadays, the definition of fashion clothes is not simple outline and pattern, but the functional clothes meeting the daily wearing of people are taught, so that the functional clothes meeting the wearing comfort and endowing the functional clothes with the function are produced. The importance of pajamas is self-evident when people spend about one third of their time in bed each day. However, the existing pajama fabric can only meet basic requirements for taking, and is relatively lack of functions.
The pajama fabric prepared by the existing method has the following defects: 1. the antibacterial fabric has no good antibacterial property and antistatic property, and even if the antibacterial fabric has the good antibacterial property and antistatic property, various effects are obviously reduced after a plurality of times of washing; 2. the existing pajama fabric is not ideal in the aspects of elasticity, comfort and health care function; 3. the whole preparation method is not provided with a soaking hot-pressing device, so that the dyeing and finishing efficiency is low, the effect is poor and the dyeing and finishing are not uniform.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide the high-grade pajama fabric and the preparation method thereof, the fabric prepared by the method has good antibacterial property and antistatic property, and various effects are not obviously reduced after washing for several times; meanwhile, the elasticity, comfort and health care function are improved; be provided with and soak hot press unit for dyeing and finishing is efficient, and is effectual, and the dip-dyeing is even.
The purpose of the invention can be realized by the following technical scheme:
the high-grade pajama fabric comprises, by weight, 30-40 parts of silk fibers, 20-90 parts of cotton fibers, 30-40 parts of far infrared fibers, 1-1.5 parts of modified antibacterial agents, 20-30 parts of poly (1.3-propylene glycol terephthalate), 0.8-1.2 parts of modified antistatic agents, 10-15 parts of spandex fibers and 10-15 parts of acrylic fibers;
the modified antibacterial agent comprises, by weight, 5-10 parts of chitosan, 3-5 parts of L-arginine, 3-5 parts of polyethylene glycol, 2-6 parts of 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, 4-8 parts of N-hydroxy-succinimide and 3-8 parts of a cross-linking agent;
the preparation method of the modified antibacterial agent comprises the following steps:
1) dispersing weighed chitosan by using 100mL of distilled water and transferring the chitosan into a 250mL flask, then adding weighed L-arginine and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride and N-hydroxy-succinimide with the molar ratio of 3:1, adjusting the pH value of the solution to be 5 by using 0.1mol/L hydrochloric acid to fully dissolve all reactants including chitosan to form a uniform reaction system, and then reacting at 30 ℃ for 12 hours;
2) after the reaction is finished, adjusting the pH value of the system to 8 by using 0.5mol/L NaOH solution, putting the system into a dialysis bag after the product is fully precipitated, dialyzing the system in distilled water for 5 days, and replacing the distilled water every 6 hours during the dialysis to fully remove unreacted amino acid, 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, N-hydroxy-succinimide and a byproduct of isourea; then concentrating in a polyethylene glycol solution with the concentration of 18% for 24h, taking out the product, and freeze-drying to finally obtain guanidino chitosan;
3) and then adding a cross-linking agent into the guanidino chitosan prepared in the step 2) for finishing to finally obtain the modified antibacterial agent.
As a further scheme of the invention: the modified antistatic agent comprises, by weight, 20-35 parts of terephthalic acid diester, 19-28 parts of isophthalic acid diester, 5-17 parts of sodium 5-sulfonate, 2-12 parts of ethylene glycol, 3-11 parts of polyethylene glycol and 1-3 parts of a catalyst.
As a further scheme of the invention: the preparation method of the modified antistatic agent comprises the following steps:
the weighed terephthalic acid diester, isophthalic acid diester, 5-sodium sulfonate, ethylene glycol and polyethylene glycol are sequentially added into a four-neck flask, the temperature is raised to 150-160 ℃ at 10 ℃ per minute, a reaction catalyst is added after reactants are completely melted, the temperature is raised to 180-190 ℃ at 2 ℃ per minute for ester exchange reaction, methanol is distilled off at the moment, after the reaction is carried out for 3-3.5 hours, the vacuum pumping is started for vacuum polycondensation, after the reaction is carried out for 1 hour, the temperature is raised to 230 ℃ at 210-230 ℃, and the vacuum polycondensation is carried out again for 1-3 hours, so that the modified antistatic agent can be obtained.
As a further scheme of the invention: the cross-linking agent is a BTCA cross-linking agent.
The preparation method of the high-grade pajama fabric comprises the following steps:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and the poly terephthalic acid 1.3 propylene glycol ester, the spandex fiber and the acrylic fiber are uniformly mixed in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring the prepared modified antibacterial agent liquid into a feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device for 3-5 minutes, taking out the pajama fabric and drying the pajama fabric for the first time, then pouring the antistatic agent liquid into the feeding box, carrying out soaking hot pressing on the pajama fabric through the soaking hot pressing device for 8-15 minutes, taking out the pajama fabric and drying the pajama fabric for the second time, finally pouring the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum wallichii, the cortex moutan, the radix angelicae, the white sandalwood and the orange flower oil into the feeding box, carrying out soaking hot pressing on the pajama fabric through the soaking hot pressing device for 15-30 minutes, taking out and air drying the pajama fabric, and obtaining the high-grade pajama fabric.
As a further scheme of the invention: the first drying temperature is 160-180 ℃, and the drying time is 2-5 minutes; the second drying temperature is 130-150 ℃, and the drying time is 4-10 minutes.
As a further scheme of the invention: the soaking hot-pressing device comprises a rack, a base and an electric cabinet; the soaking device comprises a base, a soaking box, a machine frame, a rubber pad, a feeding box, a connecting block, a rotating motor, a liquid discharge pipe, a rotating shaft, a placing basket and two balls, wherein the rubber pad is arranged at the bottom of the base, one end of the top of the base is fixedly connected with the feeding box, one side of the feeding box is connected with one end of a water pump through a pipeline, the other end of the water pump is fixedly connected with the feeding pipe, the opening of the feeding pipe is positioned right above the soaking box, the machine frame is installed at the top of the base, two first air cylinders are symmetrically installed at the top of the base, the soaking box is fixed through the connecting block by virtue of first telescopic rods on the two first air cylinders, the rotating motor is arranged at the center of the bottom of the soaking box, the liquid discharge pipe is arranged at one side of the rotating motor, the output shaft of the rotating motor is connected with the rotating shaft, the rotating shaft penetrates through the soaking box and is fixedly connected with the placing basket arranged in the soaking box, and the connecting part of the placing basket and the soaking box is symmetrically provided with the two balls;
one side of frame is provided with the electric cabinet, the top center department fixedly connected with second cylinder of frame, the second telescopic link on the second cylinder passes the frame and is connected with the hot pressboard, the inside of hot pressboard is provided with the heating rod.
As a further scheme of the invention: the soaking box, the placing basket and the hot pressing plate are all cylindrical, the hot pressing plate is matched with the placing basket, and the placing basket is of a steel bar net structure.
The invention has the beneficial effects that:
1. the fabric is finished through the modified antibacterial agent, so that the fabric has a good antibacterial effect; 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride firstly reacts with carboxyl of L-arginine to generate intermediate O-acylisourea, and then nitrogen atoms connected with double bonds in the O-acylisourea take protons from a solvent or N-hydroxy-succinimide to obtain protonated O-acylisourea; the electropositivity of the carbonyl carbon is enhanced as a result of the electron-withdrawing of the protonated O-acylisourea; then, nucleophilic addition is carried out on carbonyl carbon by one molecule of N-hydroxy-succinimide, the by-product 1- [3- (dimethylamino) propyl ] -3-ethylurea is eliminated, and then proton is lost, thus obtaining N-hydroxy-succinimide active ester; then, the amino group of the chitosan contains nitrogen atoms with lone pair electrons to carry out nucleophilic attack on the carbonyl group of the active ester, and eliminate N-hydroxyl-succinimide to obtain a target product, namely chitosan grafted arginine, which has good antibacterial property; then adding a BTCA crosslinking agent containing carboxyl which reacts with hydroxyl in chitosan grafted arginine to generate carboxyl cellulose which is firmly adsorbed on the fabric, thereby improving the washability of the antibacterial agent;
2. the fabric is finished by the antistatic agent, so that the fabric has a good antistatic effect, and the antistatic agent prepared by introducing ionizable monomer isophthalic acid diester and 5-sodium sulfonate through a melt polycondensation method has good antistatic capability and washability; the fabric is soaked in the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum chuanxiong hort, the cortex moutan, the radix angelicae, the white sandalwood and the neroli oil, so that the fabric has good health-care effects of activating blood and clearing heat, soothing nerves and promoting sleep;
3. the silk fiber, the cotton fiber, the far infrared fiber, the 1.3 polytrimethylene terephthalate, the spandex fiber and the acrylic fiber are blended according to a certain proportion, so that the advantages of the silk fiber, the cotton fiber, the far infrared fiber, the 1.3 polytrimethylene terephthalate, the spandex fiber and the acrylic fiber are synergistically promoted, and the blended first mixture is wrapped outside the blended second mixture, so that the prepared fabric is elastic, moisture-absorbing, breathable and comfortable to wear, and has good effects of keeping warm and promoting blood circulation;
4. firstly, the pajama fabric is placed in a placement basket, an additive is poured into a feeding box, an additive solution is conveyed to a soaking box through a water pump and a feeding pipe, then a first cylinder drives a first telescopic rod to stretch and retract, the soaking box is driven to move up and down through a connecting block, and then a rotating motor drives the placement basket to rotate through a rotating shaft, so that the soaking efficiency is improved, the time is saved, and the infection is more uniform; at last, the additive liquid is discharged through the liquid discharge pipe, at the moment, the second cylinder is controlled to work, the second cylinder drives the second telescopic rod to extend, so that the hot pressing plate is driven to descend, the fabric is hot pressed, the additive liquid is combined with the fabric, the soaking effect is good, the pretreatment drying can be performed in advance, and the time is saved for follow-up.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the hot press plate according to the present invention.
In the figure: 1. a feed box; 2. a water pump; 3. a feed tube; 4. a frame; 5. a first cylinder; 6. a liquid discharge pipe; 7. a rotating electric machine; 8. a base; 9. an electric cabinet; 10. a ball bearing; 11. a rotating shaft; 12. placing a basket; 13. hot pressing plate; 14. a second cylinder; 15. a second telescopic rod; 16. connecting blocks; 17. a first telescopic rod; 18. a soaking box; 19. the rod is heated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the high-grade pajama fabric comprises, by weight, 35 parts of silk fibers, 60 parts of cotton fibers, 35 parts of far infrared fibers, 1 part of modified antibacterial agent, 20-30 parts of 1.3 polytrimethylene terephthalate, 1 part of modified antistatic agent, 12 parts of spandex fibers and 13 parts of acrylic fibers;
the modified antibacterial agent comprises 7 parts by weight of chitosan, 4 parts by weight of L-arginine, 4 parts by weight of polyethylene glycol, 5 parts by weight of 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, 6 parts by weight of N-hydroxy-succinimide and 5 parts by weight of BTCA cross-linking agent;
the preparation method of the modified antibacterial agent comprises the following steps:
1) dispersing weighed chitosan by using 100mL of distilled water and transferring the chitosan into a 250mL flask, then adding weighed L-arginine and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride and N-hydroxy-succinimide with the molar ratio of 3:1, adjusting the pH value of the solution to be 5 by using 0.1mol/L hydrochloric acid to fully dissolve all reactants including chitosan to form a uniform reaction system, and then reacting at 30 ℃ for 12 hours;
2) after the reaction is finished, adjusting the pH value of the system to 8 by using 0.5mol/L NaOH solution, putting the system into a dialysis bag after the product is fully precipitated, dialyzing the system in distilled water for 5 days, and replacing the distilled water every 6 hours during the dialysis to fully remove unreacted amino acid, 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, N-hydroxy-succinimide and a byproduct of isourea; then concentrating in a polyethylene glycol solution with the concentration of 18% for 24h, taking out the product, and freeze-drying to finally obtain guanidino chitosan;
3) and then adding a BTCA cross-linking agent into the guanidino chitosan prepared in the step 2) for finishing to finally obtain the modified antibacterial agent.
The modified antistatic agent comprises, by weight, 30 parts of terephthalic acid diester, 27 parts of isophthalic acid diester, 15 parts of 5-sodium sulfonate, 11 parts of ethylene glycol, 10 parts of polyethylene glycol and 2 parts of a catalyst.
The preparation method of the modified antistatic agent comprises the following steps:
adding weighed terephthalic acid diester, isophthalic acid diester, 5-sodium sulfonate, ethylene glycol and polyethylene glycol into a four-neck flask in sequence, heating to 155 ℃ at 10 ℃ per minute, adding a reaction catalyst after reactants are completely melted, heating to 180 ℃ at 2 ℃ per minute to perform ester exchange reaction, distilling off methanol, starting vacuumizing to perform vacuum polycondensation after 3 hours of reaction, heating to 220 ℃ after 1 hour of reaction, and performing vacuum polycondensation again for 2 hours to obtain the antistatic agent.
The preparation method of the high-grade pajama fabric comprises the following steps:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and the poly terephthalic acid 1.3 propylene glycol ester, the spandex fiber and the acrylic fiber are uniformly mixed in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring the prepared modified antibacterial agent liquid into a feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device for 3-5 minutes, taking out and drying for the first time, wherein the drying temperature is 170 ℃, the drying time is 3 minutes, then pouring the antistatic agent liquid into the feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device, soaking for 10 minutes, taking out and drying for the second time, wherein the drying temperature is 140 ℃, the drying time is 5 minutes, finally pouring the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum chuanxiong hort, the cortex moutan, the radix angelicae, the white sandalwood and the orange flower oil into the feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device, soaking for 15-30 minutes, taking out and air drying, and obtaining the high-grade pajama fabric.
Example 2:
the high-grade pajama fabric comprises, by weight, 35 parts of silk fibers, 60 parts of cotton fibers, 35 parts of far infrared fibers, 1 part of modified antibacterial agent, 20-30 parts of 1.3-polytrimethylene terephthalate, 12 parts of spandex fibers and 13 parts of acrylic fibers;
the modified antibacterial agent comprises 7 parts by weight of chitosan, 4 parts by weight of L-arginine, 4 parts by weight of polyethylene glycol, 5 parts by weight of 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, 6 parts by weight of N-hydroxy-succinimide and 5 parts by weight of BTCA cross-linking agent;
the preparation method of the modified antibacterial agent comprises the following steps:
1) dispersing weighed chitosan by using 100mL of distilled water and transferring the chitosan into a 250mL flask, then adding weighed L-arginine and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride and N-hydroxy-succinimide with the molar ratio of 3:1, adjusting the pH value of the solution to be 5 by using 0.1mol/L hydrochloric acid to fully dissolve all reactants including chitosan to form a uniform reaction system, and then reacting at 30 ℃ for 12 hours;
2) after the reaction is finished, adjusting the pH value of the system to 8 by using 0.5mol/L NaOH solution, putting the system into a dialysis bag after the product is fully precipitated, dialyzing the system in distilled water for 5 days, and replacing the distilled water every 6 hours during the dialysis to fully remove unreacted amino acid, 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, N-hydroxy-succinimide and a byproduct of isourea; then concentrating in a polyethylene glycol solution with the concentration of 18% for 24h, taking out the product, and freeze-drying to finally obtain guanidino chitosan;
3) and then adding a BTCA cross-linking agent into the guanidino chitosan prepared in the step 2) for finishing to finally obtain the modified antibacterial agent.
The preparation method of the high-grade pajama fabric comprises the following steps:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and the poly terephthalic acid 1.3 propylene glycol ester, the spandex fiber and the acrylic fiber are uniformly mixed in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring the prepared modified antibacterial agent liquid into a feeding box, soaking and hot-pressing the pajama fabric for 3-5 minutes by a soaking and hot-pressing device, taking out and drying for the first time, wherein the drying temperature is 170 ℃, the drying time is 3 minutes, finally, pouring the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum chuanxiong hort, the cortex moutan, the radix angelicae, the white sandalwood and the orange flower oil into the feeding box, soaking and hot-pressing the pajama fabric for 15-30 minutes by the soaking and hot-pressing device, taking out and air-drying the pajama fabric, and obtaining the high-grade pajama fabric.
Example 3:
the high-grade pajama fabric comprises, by weight, 35 parts of silk fibers, 60 parts of cotton fibers, 35 parts of far infrared fibers, 20-30 parts of 1.3-propylene glycol terephthalate, 1 part of a modified antistatic agent, 12 parts of spandex fibers and 13 parts of acrylic fibers;
the modified antistatic agent comprises, by weight, 30 parts of terephthalic acid diester, 27 parts of isophthalic acid diester, 15 parts of 5-sodium sulfonate, 11 parts of ethylene glycol, 10 parts of polyethylene glycol and 2 parts of a catalyst.
The preparation method of the modified antistatic agent comprises the following steps:
adding weighed terephthalic acid diester, isophthalic acid diester, 5-sodium sulfonate, ethylene glycol and polyethylene glycol into a four-neck flask in sequence, heating to 155 ℃ at 10 ℃ per minute, adding a reaction catalyst after reactants are completely melted, heating to 180 ℃ at 2 ℃ per minute to perform ester exchange reaction, distilling off methanol, starting vacuumizing to perform vacuum polycondensation after 3 hours of reaction, heating to 220 ℃ after 1 hour of reaction, and performing vacuum polycondensation again for 2 hours to obtain the antistatic agent.
The preparation method of the high-grade pajama fabric comprises the following steps:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and the poly terephthalic acid 1.3 propylene glycol ester, the spandex fiber and the acrylic fiber are uniformly mixed in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring antistatic agent liquid into a feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device, soaking for 10 minutes, taking out and drying for the second time, wherein the drying temperature is 140 ℃, the drying time is 5 minutes, finally pouring traditional Chinese medicine liquid decocted by chrysanthemum, ligusticum chuanxiong hort, cortex moutan, radix angelicae, white sandalwood and orange flower oil into the feeding box, carrying out soaking hot pressing on the pajama fabric through the soaking hot pressing device, soaking for 15-30 minutes, taking out and air drying, and obtaining the high-grade pajama fabric.
The pajama fabrics prepared in example 1 and example 2 (without modified antistatic finish) were washed 5 times and 10 times, respectively, and then the changes in hydrophilicity and washfastness were measured by hydrophilicity and washfastness tests, with the results shown in table 1:
TABLE 1
As can be seen from Table 1, the sleepwear fabric which is finished by the modified antistatic agent after being washed for many times has good antistatic capability and washability by introducing the ionizable monomer of the isophthalic acid diester and the 5-sodium sulfonate and preparing the antistatic agent by a melt polycondensation method.
The pajama fabrics prepared in example 1 and example 3 (without modified antibacterial finishing) were respectively washed 5 times, 10 times, 15 times and 20 times, and then the antibacterial rate was measured by the antibacterial test, and the measurement results are shown in table 2:
TABLE 2
As can be seen from Table 2, after multiple times of washing, the pajama fabric finished by the modified antibacterial agent still has good antibacterial performance, and the antibacterial rate can reach 92%.
Please refer to fig. 1-2: the soaking hot-pressing device comprises a frame 4, a base 8 and an electric cabinet 9; the bottom of the base 8 is provided with a rubber pad which is convenient for reducing vibration, one end of the top of the base 8 is fixedly connected with a charging box 1, one side of the charging box 1 is connected with one end of a water pump 2 through a pipeline, the other end of the water pump 2 is fixedly connected with a charging pipe 3, the opening of the charging pipe 3 is positioned right above the soaking box 18, the top of the base 8 is provided with a rack 4, the top of the base 8 is symmetrically provided with two first air cylinders 5, first telescopic rods 17 on the two first air cylinders 5 both fix the soaking box 18 through connecting blocks 16, the center of the bottom of the soaking box 18 is provided with a rotating motor 7, one side of the rotating motor 7 is provided with a liquid discharge pipe 6, the output shaft of the rotating motor 7 is connected with a rotating shaft 11, the rotating shaft 11 passes through the soaking box 18 and is fixedly connected with a placing basket 12 arranged inside the soaking box 18, and the connecting part of the bottom of the placing basket 12 and the soaking box 18 is symmetrically provided with two balls 10; an electric cabinet 9 is arranged on one side of the rack 4, a second air cylinder 14 is fixedly connected to the center of the top of the rack 4, a second telescopic rod 15 on the second air cylinder 14 penetrates through the rack 4 to be connected with a hot pressing plate 13, and a heating rod 19 is arranged inside the hot pressing plate 13; soak case 18, place basket 12 and hot pressboard 13 and be cylindrical, and hot pressboard 13 with place basket 12 phase-match, and place basket 12 and be the steel reinforcement net structure, be convenient for carry out the hot pressing to the surface fabric, discharge moisture.
The working principle of the invention is as follows: firstly, the pajama fabric is placed in a placement basket 12, an additive is poured into a feeding box 1, an additive solution is conveyed to a soaking box 18 through a water pump 2 and a feeding pipe 3, then a first air cylinder 5 drives a first telescopic rod 17 to stretch and retract, the soaking box 18 is driven to move up and down through a connecting block 16, and then a rotating motor 7 drives the placement basket 12 to rotate through a rotating shaft 11, so that the soaking efficiency is improved, the time is saved, and the infection is more uniform; at last, the additive liquid is discharged through the liquid discharge pipe 6, at the moment, the second cylinder 14 is controlled to work, the second cylinder 14 drives the second telescopic rod 15 to extend, so that the hot pressing plate 13 is driven to descend, the fabric is hot pressed, on one hand, the additive liquid is accelerated to be combined with the fabric, on the other hand, the soaking effect is good, on the other hand, the pretreatment drying can be performed in advance, and the time is saved for follow-up.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (2)
1. The high-grade pajama fabric is characterized by comprising, by weight, 30-40 parts of silk fibers, 20-90 parts of cotton fibers, 30-40 parts of far infrared fibers, 1-1.5 parts of modified antibacterial agents, 20-30 parts of 1.3 polytrimethylene terephthalate, 0.8-1.2 parts of modified antistatic agents, 10-15 parts of spandex fibers and 10-15 parts of acrylic fibers;
the modified antibacterial agent comprises, by weight, 5-10 parts of chitosan, 3-5 parts of L-arginine, 3-5 parts of polyethylene glycol, 2-6 parts of 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, 4-8 parts of N-hydroxy-succinimide and 3-8 parts of a cross-linking agent;
the preparation method of the modified antibacterial agent comprises the following steps:
1) dispersing weighed chitosan by using 100mL of distilled water and transferring the chitosan into a 250mL flask, then adding weighed L-arginine and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride and N-hydroxy-succinimide with the molar ratio of 3:1, adjusting the pH value of the solution to be 5 by using 0.1mol/L hydrochloric acid to fully dissolve all reactants including chitosan to form a uniform reaction system, and then reacting at 30 ℃ for 12 hours;
2) after the reaction is finished, adjusting the pH value of the system to 8 by using 0.5mol/L NaOH solution, putting the system into a dialysis bag after the product is fully precipitated, dialyzing the system in distilled water for 5 days, and replacing the distilled water every 6 hours during the dialysis to fully remove unreacted amino acid, 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride, N-hydroxy-succinimide and a byproduct of isourea; then concentrating in a polyethylene glycol solution with the concentration of 18% for 24h, taking out the product, and freeze-drying to finally obtain guanidino chitosan;
3) then adding a cross-linking agent into the guanidino chitosan prepared in the step 2) for finishing to finally obtain a modified antibacterial agent;
the modified antistatic agent comprises, by weight, 20-35 parts of terephthalic acid diester, 19-28 parts of isophthalic acid diester, 5-17 parts of sodium 5-sulfonate, 2-12 parts of ethylene glycol, 3-11 parts of polyethylene glycol and 1-3 parts of a catalyst;
the preparation method of the modified antistatic agent comprises the following steps:
sequentially adding weighed terephthalic acid diester, isophthalic acid diester, 5-sodium sulfonate, ethylene glycol and polyethylene glycol into a four-neck flask, heating to 150-160 ℃ at 10 ℃ per minute, adding a reaction catalyst after reactants are completely melted, heating to 180-190 ℃ at 2 ℃ per minute to perform ester exchange reaction, distilling off methanol, starting vacuumizing for vacuum polycondensation after reacting for 3-3.5 hours, heating to 230 ℃ after reacting for 1 hour, and performing vacuum polycondensation again for 1-3 hours to obtain the modified antistatic agent;
the cross-linking agent is a BTCA cross-linking agent;
the preparation method of the high-grade pajama fabric comprises the following steps:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and uniformly mixing the 1.3 propylene glycol terephthalate, the spandex fiber and the acrylic fiber in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring the prepared modified antibacterial agent liquid into a feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device for 3-5 minutes, taking out and drying for the first time, wherein the drying temperature is 170 ℃, the drying time is 3 minutes, then pouring the antistatic agent liquid into the feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device, soaking for 10 minutes, taking out and drying for the second time, wherein the drying temperature is 140 ℃, the drying time is 5 minutes, finally pouring the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum chuanxiong hort, the cortex moutan, the radix angelicae, the white sandalwood and the orange flower oil into the feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device, soaking for 15-30 minutes, taking out and air drying to obtain the high-grade pajama fabric;
the soaking hot-pressing device comprises a rack (4), a base (8) and an electric cabinet (9); the bottom of the base (8) is provided with a rubber pad, one end of the top of the base (8) is fixedly connected with a feeding box (1), one end of the feeding box (1) is connected with one end of a water pump (2) through a pipeline, the other end of the water pump (2) is fixedly connected with a feeding pipe (3), an opening of the feeding pipe (3) is positioned right above the soaking box (18), a rack (4) is installed at the top of the base (8), two first air cylinders (5) are symmetrically installed at the top of the base (8), first telescopic rods (17) on the two first air cylinders (5) fix the soaking box (18) through connecting blocks (16), a rotating motor (7) is arranged at the center of the bottom of the soaking box (18), a liquid discharge pipe (6) is arranged at one side of the rotating motor (7), an output shaft of the rotating motor (7) is connected with a rotating shaft (11), the rotating shaft (11) penetrates through the soaking box (18) and is fixedly connected with a placing basket (12) arranged inside the soaking box (18), and two balls (10) are symmetrically arranged at the connecting part of the bottom of the placing basket (12) and the soaking box (18);
an electric cabinet (9) is arranged on one side of the rack (4), a second air cylinder (14) is fixedly connected to the center of the top of the rack (4), a second telescopic rod (15) on the second air cylinder (14) penetrates through the rack (4) to be connected with a hot pressing plate (13), and a heating rod (19) is arranged inside the hot pressing plate (13);
the soaking box (18), the placing basket (12) and the hot pressing plate (13) are all cylindrical, the hot pressing plate (13) is matched with the placing basket (12), and the placing basket (12) is of a reinforcing mesh structure.
2. The preparation method of the high-grade pajama fabric is characterized by comprising the following steps of:
1) selecting silk fiber, cotton fiber, far infrared fiber, poly (1.3 propylene glycol terephthalate), spandex fiber and acrylic fiber as raw materials, and weighing;
2) respectively pretreating the raw materials in the step 1), and then uniformly mixing silk fibers, cotton fibers and far infrared fibers in a mixing device to prepare a first mixture; and uniformly mixing the 1.3 propylene glycol terephthalate, the spandex fiber and the acrylic fiber in a mixing device to prepare a second mixture;
3) drawing the first mixture outside the second mixture through a conjugate spinning assembly;
4) drawing wires in the step 3), then performing cooling forming, stretching and shaping, arranging single fibers or single bundles of fibers in a line to form fiber curtains in the warp and weft directions, and crosswise spinning the fiber curtains in the warp and weft directions together to obtain the pajama fabric;
5) firstly, pouring the prepared modified antibacterial agent liquid into a feeding box, carrying out soaking hot pressing on the pajama fabric through a soaking hot pressing device for 3-5 minutes, taking out and drying for the first time, then pouring the antistatic agent liquid into the feeding box, carrying out soaking hot pressing on the pajama fabric through the soaking hot pressing device for 8-15 minutes, taking out and drying for the second time, finally pouring the traditional Chinese medicine liquid decocted by the chrysanthemum stem, the ligusticum wallichii, the cortex moutan, the radix angelicae, the white sandalwood and the orange flower oil into the feeding box, carrying out soaking hot pressing on the pajama fabric through the soaking hot pressing device for 15-30 minutes, taking out and air drying, thus obtaining the high-grade pajama fabric;
the first drying temperature is 160-; the second drying temperature is 130-;
the soaking hot-pressing device comprises a rack (4), a base (8) and an electric cabinet (9); the bottom of the base (8) is provided with a rubber pad, one end of the top of the base (8) is fixedly connected with a feeding box (1), one end of the feeding box (1) is connected with one end of a water pump (2) through a pipeline, the other end of the water pump (2) is fixedly connected with a feeding pipe (3), an opening of the feeding pipe (3) is positioned right above the soaking box (18), a rack (4) is installed at the top of the base (8), two first air cylinders (5) are symmetrically installed at the top of the base (8), first telescopic rods (17) on the two first air cylinders (5) fix the soaking box (18) through connecting blocks (16), a rotating motor (7) is arranged at the center of the bottom of the soaking box (18), a liquid discharge pipe (6) is arranged at one side of the rotating motor (7), an output shaft of the rotating motor (7) is connected with a rotating shaft (11), the rotating shaft (11) penetrates through the soaking box (18) and is fixedly connected with a placing basket (12) arranged inside the soaking box (18), and two balls (10) are symmetrically arranged at the connecting part of the bottom of the placing basket (12) and the soaking box (18);
an electric cabinet (9) is arranged on one side of the rack (4), a second air cylinder (14) is fixedly connected to the center of the top of the rack (4), a second telescopic rod (15) on the second air cylinder (14) penetrates through the rack (4) to be connected with a hot pressing plate (13), and a heating rod (19) is arranged inside the hot pressing plate (13);
the soaking box (18), the placing basket (12) and the hot pressing plate (13) are all cylindrical, the hot pressing plate (13) is matched with the placing basket (12), and the placing basket (12) is of a reinforcing mesh structure.
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| CN111560683A (en) * | 2020-05-13 | 2020-08-21 | 杭州悦仕达新材料科技有限公司 | Antistatic fabric |
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| CN105780250A (en) * | 2014-12-13 | 2016-07-20 | 南通建伟色织服装有限公司 | Warm-keeping fabric |
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