CN104404774A - Synthesis and application technology of multifunctional microcapsule finishing agent based on layer-by-layer static self-assembly - Google Patents
Synthesis and application technology of multifunctional microcapsule finishing agent based on layer-by-layer static self-assembly Download PDFInfo
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- CN104404774A CN104404774A CN201410781371.8A CN201410781371A CN104404774A CN 104404774 A CN104404774 A CN 104404774A CN 201410781371 A CN201410781371 A CN 201410781371A CN 104404774 A CN104404774 A CN 104404774A
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Abstract
The invention discloses a synthesis and application technology of a multifunctional microcapsule finishing agent based on layer-by-layer static self-assembly, belongs to the technical field of application of dyeing and finishing treatment in the cotton wool textile industry, and aims to utilize the layer-by-layer static self-assembly technology to prepare the microcapsule composite finishing agent taking nanometer TiO2 as a core, and finish the microcapsule composite finishing agent to the cotton and wool fabric through the static self-assembly, so as to improve the ultraviolet resistance and the mold resistance of the fabric. With application of the synthesis and the application technology, the complicated steps of single ultraviolet resistant finishing and single mold resistant finishing can be avoided, the technological process can be shortened, the cost can be saved, the functional efficiency of the nanometer TiO2 can be improved, and the mold resistance of the fabric can be greatly improved while the ultraviolet resistance of the cotton and wool fabric is improved.
Description
Technical field
Based on the synthesis of microcapsules multifunction finishing agent and the technique for applying of layer upon layer electrostatic self assembly, belong to the applied technical field of dyeing and finishing processing in cotton, wool textile industry.
Background technology
Based on layer upon layer electrostatic self-assembling technique (Layer-by-Layer Self-assembly Technique, be called for short LBL) to prepare microcapsules principle be utilize the electrostatic attraction between specific macromolecular compound, by the material of the positive and negative electric charge of band, by electrostatic attraction, spontaneously successively alternating deposit is surperficial at template material, a kind of technology of the molecule aggregate of formation structural integrity of associating, stable performance.This technical process constructing microcapsules is simple, without the need to the instrument and equipment of complexity, and the composition thickness controllable of cyst wall. emulsion particle, inorganic particulate, organic filler, enzyme and red blood cell are often used as mould material, and cyst wall is generally macromolecular compound.
Microcapsules technology is a kind of important means of textile industry Multifunctional finishing, why it is widely used as a kind of means preparing intelligence, function textile, can realize many objects owing to carrying out microencapsulation to predetermined substance, as carried out Co ntrolled release to active component, medicine is made to have target function, time-releasable medications, fragrance; Human body clothing climate is regulated to keep comfortable sensation by phase-change material heat absorption and release; Off-color material generation temperature-sensitive or photosensitive colour-changing provide decoration or protection color, corresponding generation slowly-releasing intelligent textile, intelligent temperature-regulation fabric and intelligent color-changing textiles etc.The application of current microcapsules technology in weaving mainly concentrates in stamp, dyeing and functionalization Final finishing, comprises electrostatic dyeing, transfer printing, three-dimensional foamed printing, heat-sensitive variable colour stamp, Aroma finishing, flame-proof treatment, anti-bacterial purifying finish etc.As the quality of Aroma finishing can be improved after carrying out microencapsulation to essence, extend fragrance release time; Antibacterial microcapsule is used for textile finishing, efficient, washable, safe antibacterial fabric can be obtained; Pest repellant microcapsules are arranged on fabric, can effectively solve insect and bite puzzlement, and the anthelminthic effect time is long.
Utilize microcapsules technology to arrange textiles, though can improve textiles comfortableness, increase that it is functional, but commercially obtain successful example and few.Because fabric is required washable, therefore microcapsule dressing agent need with process processbearing astrocyte strong bonded.Adopt adhesive, coating agent machinery set effect at present, there is fabric feeling and be deteriorated, under functional effect, degradation is not enough more.
According to wool fibre and cotton fiber surface under specific pH condition with the feature of certain electric charge, the present invention establishes microcapsules multifunction finishing agent synthetic technology based on electrostatic self-assembled method and textile finishing technology.First with nano-TiO
2particle is core, with kayexalate (PSS), polycation hexamethylene (PHMB) for wall material, makes microcapsules by layer upon layer electrostatic assembling; Then by the textile impregnation of surface band opposite charges microcapsule dressing agent process bath in, under the effect of electrostatic driving force, the microcapsules of surface band electric charge can be adsorbed onto the fabric face of surface band opposite charges, thus are arranged on fabric by the microcapsules of assembling.Based on nano-TiO
2antibacterial, antiultraviolet effect and the excellent anti-microbial property of PHMB, PHMB is assembled in nano-TiO
2the microcapsules that surface is made not only have anti-ultraviolet function, and anti-microbial property also significantly promotes.By being attached on cotton, wool fabric by these surface charging microcapsules by electrostatic self-assembled mode, not only can give fabric anti-ultraviolet function, desirable dual antibacterial effect can also be reached.
Summary of the invention
Object of the present invention is intended to utilize layer upon layer electrostatic self-assembling technique to prepare with nano-TiO
2centered by microcapsule composite finishing agent, and to be arranged on cotton, wool fabric by electrostatic self-assembled, improved uvioresistant and the anti-microbial property of fabric.Compare the Mechanical Method set combination of adhesive, coating agent, microcapsules are combined more contribute to playing its functional characteristic by electrostatic force with cotton, wool fabric, and will be down to minimum on the impact of fabric.Use the present invention, the finishing agent compatibility requirements existed when also can overcome uvioresistant finishing agent, antibacterial finishing agent one bath is high, and finishing effect is not so good as the deficiencies such as single arrangement, and shortened process is cost-saving, improves nano-TiO
2functioning efficiency, while, woolen anti-ultraviolet property cotton in raising, increase substantially the antibacterial effect of fabric.
Technical scheme of the present invention: a kind of synthesis of the microcapsules multifunction finishing agent based on layer upon layer electrostatic self assembly and technique for applying, is characterized in that at TiO
2add excessive hexamethylene (PHMB) solution in particle suspension liquid, utilize electrostatic adelphotaxy, make TiO
2microparticle surfaces adsorbs the polyelectrolyte layer of one deck oppositely charged, and repeatedly centrifugal, washing removes excessive PHMB, obtains assembling two-layer microcapsules (TiO2 is ground floor).Add in above-mentioned microcapsule solution by excessive kayexalate (PSS) solution again, due to electrostatic adsorption, PSS is adsorbed onto the surface of microcapsule of positively charged, and repeatedly centrifugal, washing removes excessive PSS, obtains the microcapsules of assembling three layers.Repeat said process, make polyelectrolyte at TiO
2microparticle surfaces alternating sorbent, forms multilayer film.By controlling microcapsules outermost layer assembling primitive kind, the microcapsules being with different electric charge can be obtained.Finally, by Electrostatic Absorption microcapsule dressing agent arranged anticipated, with on the cotton of microcapsule dressing agent oppositely charged or wool fabric, give antibacterial fabric, anti-ultraviolet function.
Its technological process is:
Microcapsules preparation flow: preparation TiO
2solution → add hexamethylene → centrifugal → dissolution precipitation and pulverize → add kayexalate → centrifugal → dissolution precipitation and pulverize → repeat adds hexamethylene and kayexalate.
Textile finishing flow process: cotton, woolen preliminary treatment → impregnated with microcapsules finishing agent → oven dry
(1) TiO
2the preparation of microcapsules Iy self-assembled layer: preparation 1-2.50g/mL TiO
2solution, regulates pH to be 9.0, adds TiO
2mass fraction is the dispersant of 5-25%, in ultrasonic cell disruptor, pulverize 5min.To above-mentioned TiO
210-35g/L hexamethylene solution 100mL is added, hybrid reaction 2min in solution, centrifugal, precipitation is dissolved in deionized water, pulverizes in ultrasonic cell disruptor, now surface of microcapsule positively charged.Getting 15mL10-35g/L kayexalate solution again joins in above-mentioned solution, and hybrid reaction 2min is centrifugal, and get precipitation and be dissolved in deionized water, pulverize in ultrasonic cell disruptor, now surface of microcapsule is electronegative.Repeat said process successively, until obtain the microcapsules with certain size.The surface of microcapsule that this legal system is standby and positively chargeable (outermost layer is PHMB), also can electronegative (PSS).
(2) cotton, woolen preliminary treatment: be flood 10-30min in the hydrochloric acid solution of 1 at pH by wool fabric, for subsequent use.Wool isoelectric point is 4.2-4.8, the wool fabric surface band positive electricity when pH=1; COTTON FABRIC is soaked 10-30min in deionized water, for subsequent use, owing to containing some hydroxyls in cellulose macromolecule, when COTTON FABRIC is flooded in aqueous, hydroxyl dissociates and makes fabric face electronegative.
(3) microcapsules are to the process of fabric: be immersed in surperficial electronegative microcapsule solution by the wool fabric of the surface band positive electricity processed, make microcapsules be adsorbed onto fabric face by Electrostatic Absorption mode, dry after drying in 105 DEG C of baking ovens; Electronegative for the surface processed COTTON FABRIC is immersed in the microcapsule solution of surface band positive electricity, dries in 105 DEG C of baking ovens after drying.
(4) polycation that the present invention also can select other to have antibiotic property replaces PHMB.
Beneficial effect of the present invention: a kind of synthesis of the microcapsules multifunction finishing agent based on layer upon layer electrostatic self assembly of the present invention and technique for applying, the tedious steps of single anti-ultraviolet finishing and single antibiotic finish can be avoided, shortened process, cost-saving, improve nano-TiO
2functioning efficiency, while, woolen anti-ultraviolet property cotton in raising, increase substantially the antibacterial effect of fabric.
Detailed description of the invention
Embodiment 1
Sample kind: wool fabric
(1) by wool fabric at pH be 1 hydrochloric acid solution in flood 30min, for subsequent use, now wool fabric surface band positive electricity.
(2) preparing outermost layer is PSS, surperficial electronegative microcapsules.Concrete steps are: preparation 1.50g/mLTiO
2solution, regulates pH to be 9.0, adds TiO
2mass fraction is the dispersant of 20%, in ultrasonic cell disruptor, pulverize 5min.To above-mentioned TiO
2hexamethylene (35g/L) solution 100mL is added, hybrid reaction 2min in solution, centrifugal, precipitation is dissolved in deionized water, in ultrasonic cell disruptor, pulverizes (now surface of microcapsule positively charged).Getting 15mL kayexalate (35g/L) solution again joins in above-mentioned solution, and hybrid reaction 2min is centrifugal, and get precipitation and be dissolved in deionized water, pulverize in ultrasonic cell disruptor, now surface of microcapsule is electronegative.Repeat said process 8 times successively, until obtain the microcapsules with certain size.The microcapsules outermost layer finally controlling legal system according to this standby is PSS, and namely fiber surface is electronegative.
(3) wool fabric is immersed in 20min in microcapsule solution, dries in 105 DEG C of baking ovens after drying.
Through the wool fabric of above-mentioned arrangement, after testing, its Ultraviolet Protection Factor (UPF) reaches 250, and the wool fabric bacteriostasis rate simultaneously processed under this kind of condition reaches 98.9%.
Embodiment 2
Sample kind: COTTON FABRIC
(1) COTTON FABRIC is soaked 30min in deionized water, for subsequent use, now surface of cotton fabric is electronegative.
(2) microcapsules that outermost layer is PHMB, surface band positive electricity are prepared.Concrete steps are: preparation 2.50g/mL TiO
2solution, regulates pH to be 9.0, adds TiO
2mass fraction is the dispersant of 25%, in ultrasonic cell disruptor, pulverize 5min.To above-mentioned TiO
2hexamethylene (35g/L) solution 100mL is added, hybrid reaction 2min in solution, centrifugal, precipitation is dissolved in deionized water, in ultrasonic cell disruptor, pulverizes (now surface of microcapsule positively charged).Getting 15mL kayexalate (35g/L) solution again joins in above-mentioned solution, and hybrid reaction 2min is centrifugal, and get precipitation and be dissolved in deionized water, pulverize in ultrasonic cell disruptor, now surface of microcapsule is electronegative.Repeat said process 10 times successively, until obtain the microcapsules with certain size.The microcapsules outermost layer finally controlling legal system according to this standby is PHMB, and namely fiber surface is positively charged.
(3) COTTON FABRIC is immersed 10min in microcapsule solution, dry in 105 DEG C of baking ovens after drying.
Through the COTTON FABRIC of above-mentioned process, after testing, its Ultraviolet Protection Factor (UPF) reaches 64.55, and bacteriostasis rate reaches 98.1% simultaneously.
Claims (3)
1., based on the synthesis of microcapsules multifunction finishing agent and the technique for applying of layer upon layer electrostatic self assembly, it is characterized in that at TiO
2add excessive hexamethylene solution in particle suspension liquid, utilize electrostatic adelphotaxy, make TiO
2microparticle surfaces adsorbs the polyelectrolyte layer of one deck oppositely charged; Add in above-mentioned microcapsule solution by excessive kayexalate solution again, due to electrostatic adsorption, PSS is adsorbed onto the surface of microcapsule of positively charged; Repeat said process, make polyelectrolyte at TiO
2microparticle surfaces alternating sorbent, forms multilayer film, obtained microcapsule dressing agent; Finally, by Electrostatic Absorption, microcapsule dressing agent is arranged on cotton that anticipated, oppositely charged, wool fabric respectively;
(1) TiO
2the preparation of microcapsules Iy self-assembled layer: preparation 1-2.50g/mL TiO
2solution, regulates pH to be 9.0, adds TiO
2mass fraction is the dispersant of 5-25%, in ultrasonic cell disruptor, pulverize 5min; To above-mentioned TiO
210-35g/L hexamethylene solution 100mL is added, hybrid reaction 2min in solution, centrifugal, precipitation is dissolved in deionized water, pulverizes in ultrasonic cell disruptor, now surface of microcapsule positively charged; Getting 15mL10-35g/L kayexalate solution again joins in above-mentioned solution, and hybrid reaction 2min is centrifugal, gets precipitation and is dissolved in deionized water, pulverize in ultrasonic cell disruptor; Repeat said process 5-20 time successively, obtain the microcapsules with certain size;
(2) cotton, woolen preliminary treatment: be flood 10-30min in the hydrochloric acid solution of 1 at pH by wool fabric, for subsequent use; COTTON FABRIC is soaked 10-30min in deionized water, for subsequent use;
(3) microcapsules are to the process of fabric: be immersed in surperficial electronegative microcapsule solution by the wool fabric of the surface band positive electricity processed, make microcapsules be adsorbed onto fabric face by Electrostatic Absorption mode, dry after drying in 105 DEG C of baking ovens; Electronegative for the surface processed COTTON FABRIC is immersed in the microcapsule solution of surface band positive electricity, dries in 105 DEG C of baking ovens after drying.
2. a kind of synthesis of the microcapsules multifunction finishing agent based on layer upon layer electrostatic self assembly according to claim 1 and technique for applying, be applicable to process COTTON FABRIC and wool fabric; Wool fabric comprises worsted fabric and the various drap-de-berry fabrics such as all-wool gabardine, serge, valetin, female's clothing.
3. a kind of synthesis of the microcapsules multifunction finishing agent based on layer upon layer electrostatic self assembly according to claim 1 and technique for applying, is characterized in that the hexamethylene applied also can select other polycations having anti-microbial property to substitute.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820990A (en) * | 2014-02-25 | 2014-05-28 | 南京邮电大学 | Uvioresistant yarns prepared by confinement induced self-assembly and preparation method thereof |
| CN107059394A (en) * | 2017-05-11 | 2017-08-18 | 江苏银桥纺织科技有限公司 | A kind of bafta UV resistant finish |
| CN107460724A (en) * | 2017-09-17 | 2017-12-12 | 赵兵 | Multifunctional cellulose fiber based on nano zine oxide |
| CN107558188A (en) * | 2017-09-17 | 2018-01-09 | 赵兵 | A kind of LBL self-assembly nano silver wire conductive fiber available for wearable device |
| CN107621553A (en) * | 2017-09-22 | 2018-01-23 | 中国科学院青岛生物能源与过程研究所 | A kind of microorganism amplifies imaging detection method |
| CN107938316A (en) * | 2017-11-30 | 2018-04-20 | 英泰时尚服饰（苏州）有限公司 | A kind of titanium dioxide microcapsule finishing agent and preparation method thereof |
| CN108659796A (en) * | 2018-08-13 | 2018-10-16 | 浙江海洋大学 | A kind of width transition temperature area shaping phase-change material and preparation method thereof |
| CN109126651A (en) * | 2018-09-19 | 2019-01-04 | 天津工业大学 | A kind of preparation method of ferromagnetic graphene oxide/polyelectrolyte composite micro-capsule |
| CN110756130A (en) * | 2019-10-30 | 2020-02-07 | 江南大学 | Synthesis of flame-retardant microcapsule and preparation method of flame-retardant fabric |
| CN113694896A (en) * | 2021-08-03 | 2021-11-26 | 武汉纺织大学 | Fabric loaded with wool powder and having peculiar smell adsorption function and preparation method thereof |
| CN114960030A (en) * | 2022-06-07 | 2022-08-30 | 南通通州江华纺织有限公司 | Moisture-absorbing and breathable multilayer composite spunlaced nonwoven fabric and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820990A (en) * | 2014-02-25 | 2014-05-28 | 南京邮电大学 | Uvioresistant yarns prepared by confinement induced self-assembly and preparation method thereof |
| CN103820990B (en) * | 2014-02-25 | 2016-07-06 | 南京邮电大学 | Ultraviolet resistance yarn and preparation method thereof is prepared in a kind of confinement induction self assembly |
| CN107059394A (en) * | 2017-05-11 | 2017-08-18 | 江苏银桥纺织科技有限公司 | A kind of bafta UV resistant finish |
| CN107460724B (en) * | 2017-09-17 | 2019-08-23 | 上海沙驰服饰有限公司 | Multifunctional cellulose fiber based on nano zine oxide |
| CN107558188A (en) * | 2017-09-17 | 2018-01-09 | 赵兵 | A kind of LBL self-assembly nano silver wire conductive fiber available for wearable device |
| CN107460724A (en) * | 2017-09-17 | 2017-12-12 | 赵兵 | Multifunctional cellulose fiber based on nano zine oxide |
| CN107621553A (en) * | 2017-09-22 | 2018-01-23 | 中国科学院青岛生物能源与过程研究所 | A kind of microorganism amplifies imaging detection method |
| CN107938316A (en) * | 2017-11-30 | 2018-04-20 | 英泰时尚服饰（苏州）有限公司 | A kind of titanium dioxide microcapsule finishing agent and preparation method thereof |
| CN108659796A (en) * | 2018-08-13 | 2018-10-16 | 浙江海洋大学 | A kind of width transition temperature area shaping phase-change material and preparation method thereof |
| CN108659796B (en) * | 2018-08-13 | 2020-06-30 | 浙江海洋大学 | Wide phase-change temperature zone shape-stabilized phase-change material and preparation method thereof |
| CN109126651A (en) * | 2018-09-19 | 2019-01-04 | 天津工业大学 | A kind of preparation method of ferromagnetic graphene oxide/polyelectrolyte composite micro-capsule |
| CN110756130A (en) * | 2019-10-30 | 2020-02-07 | 江南大学 | Synthesis of flame-retardant microcapsule and preparation method of flame-retardant fabric |
| CN113694896A (en) * | 2021-08-03 | 2021-11-26 | 武汉纺织大学 | Fabric loaded with wool powder and having peculiar smell adsorption function and preparation method thereof |
| CN113694896B (en) * | 2021-08-03 | 2023-02-03 | 武汉纺织大学 | Fabric loaded with wool powder and having peculiar smell adsorption function and preparation method thereof |
| CN114960030A (en) * | 2022-06-07 | 2022-08-30 | 南通通州江华纺织有限公司 | Moisture-absorbing and breathable multilayer composite spunlaced nonwoven fabric and preparation method thereof |
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