CN102677465B - Modified tussah silk fabric with functionalized nanometer chitosan and nanometer titanium dioxide - Google Patents
Modified tussah silk fabric with functionalized nanometer chitosan and nanometer titanium dioxide Download PDFInfo
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Abstract
The invention relates to modified tussah silk fabric with functionalized nanometer chitosan and nanometer titanium dioxide. The modified tussah silk fabric is prepared by the steps in sequence: weaving the tussah silk fabric by utilizing tussah filament, preparing finishing liquor and finishing tussah silk fabric; and the technical problems that the existing textile materials in the modification technology can not effectively improve the properties that the tussah silk fabric has damage to the environment, is easy to wrinkle, not anti-bacterial and easy to shrink, has poor dyeing property, poor comfortableness and function, and the like can be solved, the comprehensive properties that the tussah silk fabric is anti-wrinkle, soft, anti-bacterial, shrink-proof, self-cleaning and ultraviolet ray-resistant, as well as the adsorption efficiency of dye, and the like can be improved and enhanced, and the tussah silk fabric has the technical benefits of being lower in preparation cost, simple in process, environment-friendly and easy to realize, etc.
Description
Technical field
The invention belongs to textile material modification technology field, relate in particular to functionalized nano tussah silk textiles finishing technique field, particularly relate to a kind of functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles.
Background technology
Along with the continuous enhancing of domestic and international environmental protection consciousness, exploitation textiles formaldehyde-free durable crease-proof finishing agent becomes development trend.The formaldehydeless finishing agent of having developed such as epoxy resin, double hydroxyethyl sulfone, polybasic carboxylic acid and soluble polyurethane etc., obtained certain effect in application, certain shortcoming such as ageing low, strength damage are large, easily yellowing but all exist, particularly these finishing agents are all chemical syntheses, and some also has hypotoxicity.
Environmental fabric finishing agent is with its safe, nontoxic and good biocompatibility, and is noticeable gradually in recent years, and it arranges COTTON FABRIC with natural materials such as protein, chitin, shitosan etc.Raising along with people's living standard, the consumer not only considers the quality index of textiles and takes performance now, more consider the environmental protection indexs such as harm to health, wish that textiles has more functions useful to human body, as have skin care, antibiotic, moisturizing, uvioresistant etc.Although these environmental finishing agent raw materials are green, use safety, simple use still exists the problem of poor, the wrinkle resistant durability deficiency of anchor effect, and can not fully meet these required functions of health of people simultaneously.
, according to U.S. Patent number US6239710,, at heated in water solution silk, with an organic solvent be prepared finishing agent at the temperature of 150 ℃ to 280 ℃, but finishing effect is undesirable and comparatively serious to environmental nuisance.A kind of environment-friendly type weaving protein fibre dressing liquid is disclosed at european patent number EP145683, although reached higher environmental protection index, but the height of preparation cost, the complexity of technique, cause being difficult to routine in the actual industrial manufacture and use on a large scale and apply.
At present, in the textile material field, cotton fiber is a kind of senior native cellulose fibre, is considered to " green fiber ".Its COTTON FABRIC quality is plentiful abundant, soft feel, and good sucting wet air permeability and good wearing comfort, always be subject to people's favor, and market and development prospect is widely at home and abroad arranged.In various fabrics, textile clothes are one of most popular consumer goods of back to nature, but COTTON FABRIC is wrinkling serious in dress, need flatiron could recover original outward appearance after washing.For a long time, the anti-creasing and shrink-resistant finish agent great majority that use are the formolation compound, can discharge ecological environment and the extremely harmful formaldehyde of human body in arranging processing and wearing process.
And useless silk is as the main discarded object of Silk Industry, and shitosan, as the discarded object of the materials such as shrimp, crab, is the second largest regenerated resources of nature, is only second to cotton fiber, but all is not effectively utilized.
Simultaneously, we know, tussah silk is the principal item of tussah, belongs to natural protein fibre, and its single fiber is thick, good springiness, fabric is plentiful, water imbibition is strong, and acid-fast alkali-proof, wearing comfort are high, have rough, magnificent appearance style.But with other Fiber Phase ratios, still there are some weakness in tussah silk on wearability, especially at aspects such as water stain, yellowing, wrinkle.Along with the development of synthetic fiber processing industry, easy wrinkle, the yielding defect of silk tussah fibre goods highlight more, have become a great problem of domestic and international silk circle of puzzlement.Therefore, by modification technology, overcome its weakness, for the quality and the functionalization that improve tussah silk, have great importance.
The appearance of nano material, for the modification of tussah silk provides a new approach.Nano titanium oxide is colourless particulate, and particle diameter is little, and is nontoxic, tasteless, has physics, the chemical property such as optics, electricity, chemistry, catalysis of a series of excellences, anti-aging at macromolecular material, improve existing application widely on heat endurance and mechanical property.Aspect the exploitation new textile material, nano titanium oxide can be given fibrous material with functions such as uvioresistant, infrared ray, wear-resisting, antistatic, antibiotic, automatically cleanings, is with a wide range of applications.
Shitosan comes from the shellfish shells such as shrimp, crab, its aboundresources.As the unique alkaline polysaccharide of nature, shitosan has the characteristics such as good biocompatibility, avirulence and biodegradability, can be used for the deep dyeing of the fabrics such as cotton, hair, silk at field of textiles, improves the anti-microbial property of textiles etc.But because the macromolecular chain of shitosan is longer, although some molecule can enter between fiber under certain condition, most surfaces that are attached to silk fiber, affect the feel of fiber etc.Shitosan is made macromolecule organic nano particulate, attribute such as antibiotic, the crease-resistant and raising dyeability that not only can keep the natural macromolecular material of shitosan itself, and can bring into play the characteristic of its nano material, thus absorption property improves greatly, and anti-microbial property strengthens.
The present invention prepares nano titanium oxide and Nano chitosan distillate, again silk tussah fibre is processed, utilize the effects such as the small size of nano material and bigger serface, realize the functional modification of silk tussah fibre, thereby improve the performances such as dyeability, wrinkle resistance anti-microbial property and uvioresistant of tussah silk textiles.
Summary of the invention
purpose of the present invention provides a kind of functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles, weave tussah silk textiles by the tussah long filament successively, prepare dressing liquid and carry out the step preparation of tussah silk textiles arrangement and obtain, solved in existing textile material modification technology can't effectively improve tussah silk textiles to environmental nuisance, easily wrinkle, not antibiotic, the poor technical barriers of comfortable function such as easy contracting and dyeability are poor, greatly improved the crease-resistant of tussah silk textiles, soft, antibiotic, shrinkproof, automatically cleaning, uvioresistant, the comprehensive comfort property such as the adsorption efficiency of dyestuff, and preparation cost is low, environmental protection, and preparation technology is simple and easy to the useful advantages such as realization, the pre-treatment of weaving by the tussah long filament has realized tussah long filament high cleaning, highly soft, requirement applicable to the comfort property of high-grade textile material, improved the extra added value of product, the innovation degree is higher.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of functionalized nano shitosan of the present invention and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles are weaved tussah silk textiles, are prepared dressing liquid and carry out the step preparation of tussah silk textiles arrangement and obtain by the tussah long filament successively; Wherein:
One, the tussah silk long fiber is weaved tussah silk textiles: the tussah long filament that the uniformity that will select is higher is washed removal of impurities, then carries out the shredding combing, then carries out the fabric preparation; Wherein, described washing is that 32～34 ℃, concentration are to keep 24～27min in 7.6g/L soda ash water for first tussah long filament complete wetting that the described uniformity of selecting is higher in temperature, complete wetting keeps 22～24 min in temperature is the low temperature distillation water of 27～29 ℃ again, and then taking out the tussah long filament is that 26～28 ℃ of low temperature carry out the low temperature indirect dewatered drying in temperature; Described shredding combing be before shredding the higher tussah filament surface of the described uniformity of selecting evenly a small amount of temperature of spraying be that 32 ℃, concentration are that every premium on currency contains 0.006 cationic surfactant solution, again by opener shredding and combing machine for fur combing, further remove impurity, and break into the tussah long filament that crimpness is arranged of 79～82mm; The preparation of described fabric is the tussah silk textiles that the above-mentioned tussah long filament that crimpness is arranged of breaking into 79～82mm is prepared, and the described tussah silk textiles that is prepared into is the tussah silk bondedfibre fabric that the tussah silk knitted fabric that is woven into or the tussah silk woven fabric that is woven into or water sting;
two, prepare dressing liquid: it is evenly to be mixed to get the homogeneous mixed liquor in the acid solution of 10～80g/L that the concentration chitosan solution that is 0.01～10g/L is added concentration, and wherein, the acid in described acid solution is BTCA, citric acid or maleic anhydride, then adding concentration in above-mentioned homogeneous mixed liquor is in the ortho phosphorous acid sodium solution of 10～60g/L after full and uniform dissolving, add again 0.075 ~ 0.085g polyvinylpyrrolidone, after abundant dispersed with stirring is even, in the described well-beaten while, dropwise add the sodium tripolyphosphate solution of concentration as 20g/L take 15/min, and take 28～30 droplets/minute, dropwise add concentration as 0.01～10g/L nanometer titanium dioxide titanium solution, after dropwise adding sodium tripolyphosphate solution and nanometer titanium dioxide titanium solution, obtain again nano titanium oxide and Nano chitosan finishing functions liquid after strong stirring, wherein said nano titanium oxide is nanometer anatase titania or rutile type nano titanic oxide, the ortho phosphorous acid sodium solution that above-mentioned concentration is the chitosan solution of 0.01～10g/L, acid solution that concentration is 10～80g/L, concentration is 10～60g/L, sodium tripolyphosphate solution, the concentration that concentration is 20g/L are that the volume ratio of 0.01～10g/L nanometer titanium dioxide titanium solution is 7～9:10～13:9～12:11～14:7～9,
Three, carry out tussah silk textiles and arrange, the tussah silk textiles that is prepared into described in step 1 is immersed in described nano titanium oxide and Nano chitosan finishing functions liquid in step 2, dip time is 36～38min, and two soak two rolls, and pressure is 0.9kg/cm
2, liquid carrying rate is 70～90%, in temperature, is preliminary drying 5min in the convection oven of 80 ℃, stagnate 1 min, being preliminary drying 5min in the convection oven of 80 ℃ in temperature again, is then to bake 3min under 165～168 ℃ in temperature, be washed to neutral after after temperature is the low temperature drying of 27～29 ℃ and get final product.
As an optimal way, the described low temperature indirect dewatered drying in step 1 be roll speed be 118 turn/wrap up the tussah long filament by science fabric in the drying drum of min, the tussah long filament is not directly contacted with cylinder, bowl temperature remains on 26 ℃ always.
As an optimal way, step 2 described concentration extremely is that the particle diameter of Nano sol of 0.01～10g/L nanometer titanium dioxide titanium solution is less than 100nm, in described nano titanium oxide and Nano chitosan finishing functions liquid, the particle diameter that mixes Nano sol of Nano chitosan and nano titanium oxide is less than 100nm.
As an optimal way, BTCA described in step 2 is the crosslinking agent of environment-friendly type, makes between shitosan and silk tussah fibre and forms covalent bond, gives simultaneously tussah silk textiles crease-resistant wrinkle resistant.
As an optimal way, the fiber surface that step 3 is carried out the tussah silk textiles after tussah silk textiles arranges has the uniform Nano chitosan of one deck and nano titanium oxide.
As an optimal way, the tussah silk textiles that step 3 is carried out after tussah silk textiles arranges is the antimicrobial form tussah silk textiles.
As an optimal way, the tussah silk textiles that step 3 is carried out after tussah silk textiles arranges is easy dyeing type tussah silk textiles.
More crucial is: in above-mentioned optimal way, described low temperature indirect dewatered drying in step 1 is to be to wrap up the tussah long filament by science fabric in the drying drum of 118 rev/mins rolling speed, the tussah long filament is not directly contacted with cylinder, and bowl temperature remains on 26 ℃ always; Described concentration in step 2 is that the particle diameter of Nano sol of 0.01～10g/L nanometer titanium dioxide titanium solution is less than 100nm, in described nano titanium oxide and Nano chitosan finishing functions liquid, the particle diameter that mixes Nano sol of Nano chitosan and nano titanium oxide is less than 100nm; BTCA described in step 2 is the crosslinking agent of environment-friendly type, makes between shitosan and silk tussah fibre and forms covalent bond, gives simultaneously tussah silk textiles crease-resistant wrinkle resistant; The fiber surface that step 3 is carried out the tussah silk textiles after tussah silk textiles arranges has the uniform Nano chitosan of one deck and nano titanium oxide; The functionalized nano shitosan that obtains and nano-titanium dioxide modified tussah silk textiles, more outstanding on the adsorption efficiency performance of crease-resistant, soft, antibiotic, shrinkproof, the automatically cleaning of tussah silk textiles, uvioresistant, dyestuff, be more than three times of adsorption efficiency performance indications of crease-resistant in other situation, soft, antibiotic, shrinkproof, automatically cleaning, uvioresistant, dyestuff.
The principle of technical solution of the present invention is: because rutile type nano titanic oxide has anti-ultraviolet function, nanometer anatase titania has photocatalysis, antibiotic, automatically cleaning and anti-ultraviolet effect.The large molecule of shitosan has a large amount of amino, be used for the tussah silk modification can make its textiles in dye bath with a large amount of positive charges, reduce on fiber with negative electrical charge, overcome in dyeing course the Coulomb repulsion of negative electrical charge to ACID DYES and REACTIVE DYES anion on fiber, thereby dye on the promotion dyestuff, effect with deep dyeing, the anti-microbial property of the fiber that also strengthens simultaneously.Crosslinking agent BTCA, citric acid and maleic anhydride can produce crosslinked action with silk tussah fibre and shitosan, can improve the wrinkle resistance of tussah silk textiles, strengthen simultaneously shitosan etc. in the set at fiber surface.Because the carboxyl in crosslinking agent is electronegative, dosage of crosslinking agent is too much, and the negative charge amount of fiber surface is increased, thereby affects the action effect of dyestuff and shitosan, therefore need suitably to control its consumption.Therefore, adopt the combination dressing liquid of nano titanium oxide and Nano chitosan, can improve the wrinkle of tussah silk textiles, easily contracting and the shortcoming such as dyeability is poor, realize simultaneously antibiotic, the anti-ultraviolet function of tussah silk textiles.
Compared with prior art, advantage of the present invention is:
1, utilize the small-size effect of nano material, make in its hole that embeds fiber the practical function filling; Utilize the Large ratio surface effect of nano material, thereby have many activated centres, have high activity, improve the adsorption efficiency of dyestuff.
2, the good characteristic of comprehensive utilization nano titanium oxide and Nano chitosan, give tussah silk textiles many excellent properties simultaneously.Can make fabric have anti-ultraviolet function during the application rutile type nano titanic oxide, nanometer anatase titania has photocatalysis, can give antibacterial fabric, automatically cleaning and anti-ultraviolet function.The rich surface amino-contained of Nano chitosan, be applied on silk tussah fibre, can reduce on fiber with negative electrical charge, promote to dye on dyestuff, thereby improve dyeability.
3, green crosslinking agent BTCA, citric acid and maleic anhydride; And the adding of catalyst inferior sodium phosphate, can impel amido in chitosan molecule and hydroxyl, the amido generation cross-linking reaction of fiber, improve the set of shitosan at fiber surface.
4, enrich in the nano titanium oxide, the shitosan source that are used for the tussah silk finishing functions, and cost is lower, and the preparation technology of Nano chitosan is simple, easy to be realized, therefore, but the method has suitability for industrialized production and applies the high characteristics of surcharge.
The specific embodiment
, below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment 1:
A kind of functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles are weaved tussah silk textiles, are prepared dressing liquid and carry out the step preparation of tussah silk textiles arrangement and obtain by the tussah long filament successively; Wherein:
One, the tussah silk long fiber is weaved tussah silk textiles: the tussah long filament that the uniformity that will select is higher is washed removal of impurities, then carries out the shredding combing, then carries out the fabric preparation; Wherein, described washing is that 32～34 ℃, concentration are to keep 24～27 min in 7.6g/L soda ash water for first tussah long filament complete wetting that the described uniformity of selecting is higher in temperature, complete wetting keeps 22～24 min in temperature is the low temperature distillation water of 27～29 ℃ again, and then taking out the tussah long filament is that 26～28 ℃ of low temperature carry out the low temperature indirect dewatered drying in temperature; Described shredding combing be before shredding the higher tussah filament surface of the described uniformity of selecting evenly a small amount of temperature of spraying be that 32 ℃, concentration are that every premium on currency contains 0.006 cationic surfactant solution, again by opener shredding and combing machine for fur combing, further remove impurity, and break into the tussah long filament that crimpness is arranged of 79～82mm; The preparation of described fabric is the tussah silk textiles that the above-mentioned tussah long filament that crimpness is arranged of breaking into 79～82mm is prepared, and the described tussah silk textiles that is prepared into is the tussah silk bondedfibre fabric that the tussah silk knitted fabric that is woven into or the tussah silk woven fabric that is woven into or water sting;
two, prepare dressing liquid: it is evenly to be mixed to get the homogeneous mixed liquor in the acid solution of 10～80g/L that the concentration chitosan solution that is 0.01～10g/L is added concentration, and wherein, the acid in described acid solution is BTCA, citric acid or maleic anhydride, then adding concentration in above-mentioned homogeneous mixed liquor is in the ortho phosphorous acid sodium solution of 10～60g/L after full and uniform dissolving, add again 0.075 ~ 0.085g polyvinylpyrrolidone, after abundant dispersed with stirring is even, in the described well-beaten while, dropwise add the sodium tripolyphosphate solution of concentration as 20g/L take 15/min, and take 28～30/min, dropwise add concentration as 0.01～10g/L nanometer titanium dioxide titanium solution, after dropwise adding sodium tripolyphosphate solution and nanometer titanium dioxide titanium solution, obtain again nano titanium oxide and Nano chitosan finishing functions liquid after strong stirring, wherein said nano titanium oxide is nanometer anatase titania or rutile type nano titanic oxide, the ortho phosphorous acid sodium solution that above-mentioned concentration is the chitosan solution of 0.01～10g/L, acid solution that concentration is 10～80g/L, concentration is 10～60g/L, sodium tripolyphosphate solution, the concentration that concentration is 20g/L are that the volume ratio of 0.01～10g/L nanometer titanium dioxide titanium solution is 7～9:10～13:9～12:11～14:7～9,
Three, carrying out tussah silk textiles arranges, the tussah silk textiles that is prepared into described in step 1 is immersed in described nano titanium oxide and Nano chitosan finishing functions liquid in step 2, dip time is 36～38min, two soak two rolls, pressure is 0.9 kilogram/square centimeter, liquid carrying rate is 70～90%, be preliminary drying 5min in the convection oven of 80 ℃ in temperature, stagnate 1 min, be preliminary drying 5min in the convection oven of 80 ℃ in temperature again, then be to bake 3min under 165～168 ℃ in temperature, be washed to neutral after after temperature is the low temperature drying of 27～29 ℃ and get final product.
Wherein, the described low temperature indirect dewatered drying in step 1 is to be to wrap up the tussah long filament by science fabric in the drying drum of 118 rev/mins rolling speed, and the tussah long filament is not directly contacted with cylinder, and bowl temperature remains on 26 ℃ always; Step 2 described concentration extremely is that the particle diameter of Nano sol of 0.01～10g/L nanometer titanium dioxide titanium solution is less than 100nm, in described nano titanium oxide and Nano chitosan finishing functions liquid, the particle diameter that mixes Nano sol of Nano chitosan and nano titanium oxide is less than 100nm; BTCA described in step 2 is the crosslinking agent of environment-friendly type, makes between shitosan and silk tussah fibre and forms covalent bond, gives simultaneously tussah silk textiles crease-resistant wrinkle resistant; The fiber surface that step 3 is carried out the tussah silk textiles after tussah silk textiles arranges has the uniform Nano chitosan of one deck and nano titanium oxide.
Embodiment 2:
1, under room temperature, after adding 10g/L BTCA and 10g/L inferior sodium phosphate fully to dissolve the 5g/L shitosan, add again appropriate polyethylene of dispersing agent pyrrolidones, after abundant dispersed with stirring is even, dropwise add the sodium tripolyphosphate solution of 20g/L under strong stirring, make the Nano chitosan dispersion liquid, then add the 10g/L amido silicon oil, the 5g/L nanometer anatase titania, obtain nano-TiO after strong stirring
2Disperse dressing liquid with Nano chitosan;
2, tussah silk textiles is immersed in above dressing liquid, dip time is 10min, and two soak two rolls, and liquid carrying rate is 90%, 80 ℃ of preliminary drying 5min, and 165 ℃ bake 3min, washes rear 80 ℃ of oven dry.253 ° of the nano-material modified functionalization tussah silk textiles creasy recovery angles that makes, to the bacteriostasis rate of Escherichia coli and staphylococcus aureus more than 95%, improve more than 1 to the color depth value K/S value of ACID DYES and reactive dyeing.
Embodiment 3:
1, under room temperature, after adding 50g/L BTCA and 50g/L inferior sodium phosphate fully to dissolve the 5g/L shitosan, appropriate polyethylene of dispersing agent pyrrolidones, after abundant dispersed with stirring is even, stir the sodium tripolyphosphate solution that dropwise adds 20g/L, add the 10g/L amido silicon oil, the 5g/L nanometer anatase titania, obtain nano-TiO after strong stirring again
2Disperse dressing liquid with Nano chitosan;
2, tussah silk textiles is immersed in above dressing liquid, dip time is 10min, and two soak two rolls, and liquid carrying rate is 90%, 80 ℃ of preliminary drying 5min, and 165 ℃ bake 3min, washes rear 80 ℃ of oven dry.253 ° of the Nano chitosan that makes and nano-titanium dioxide modified functionalization tussah silk textiles creasy recovery angles, reach 100% to the bacteriostasis rate of Escherichia coli and staphylococcus aureus, to the color depth value K/S value of ACID DYES and reactive dyeing, improves more than 1.
Embodiment 4:
1, under room temperature, after adding 30g/L BTCA and 20g/L inferior sodium phosphate fully to dissolve the 5g/L shitosan, appropriate polyethylene of dispersing agent pyrrolidones, after abundant dispersed with stirring is even, stir the sodium tripolyphosphate solution that dropwise adds 20g/L, add the 10g/L amido silicon oil, the 5g/L rutile type nano titanic oxide, obtain nano TiO 2 and Nano chitosan and disperse dressing liquid after strong stirring again;
2, tussah silk textiles is immersed in above dressing liquid, dip time is 10min, and two soak two rolls, and liquid carrying rate is 90%, 80 ℃ of preliminary drying 5min, and 165 ℃ bake 3min, washes rear 80 ℃ of oven dry.241 ° of the nano-material modified functionalization tussah silk textiles creasy recovery angles that makes, bacteriostasis rate to Escherichia coli and staphylococcus aureus reaches more than 95%, tussah silk textiles reaches good ultraviolet protection, to the UV-preventing rate more than 95%, to the color depth value K/S value of ACID DYES and reactive dyeing, improve more than 2.
Embodiment 5:
1, under room temperature, after adding 60g/L maleic anhydride and 50g/L inferior sodium phosphate fully to dissolve the 5g/L shitosan, appropriate polyethylene of dispersing agent pyrrolidones, after abundant dispersed with stirring is even, stir the sodium tripolyphosphate solution that dropwise adds 20g/L, add the 10g/L amido silicon oil, the 5g/L rutile type nano titanic oxide, obtain nano TiO 2 and Nano chitosan and disperse dressing liquid after strong stirring again;
2, tussah silk textiles is immersed in above dressing liquid, dip time is 10min, and two soak two rolls, and liquid carrying rate is 90%, 80 ℃ of preliminary drying 5min, and 165 ℃ bake 3min, washes rear 80 ℃ of oven dry.249 ° of the nano-material modified functionalization tussah silk textiles creasy recovery angles that makes, reach more than 95% the bacteriostasis rate of Escherichia coli and staphylococcus aureus, to the color depth value K/S value of ACID DYES and reactive dyeing, improves more than 1.
The present invention is not limited to above-mentioned specific embodiment, is not deviating under spirit of the present invention and real situation thereof, and those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion.Within these corresponding changes and distortion all should belong to the protection domain of claims of the present invention.
Claims (7)
1. a functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described functionalized nano shitosan and nano-titanium dioxide modified tussah silk textiles are weaved tussah silk textiles, are prepared dressing liquid and carry out the step preparation of tussah silk textiles arrangement and obtain by the tussah long filament successively; Wherein:
(1) the tussah long filament is weaved tussah silk textiles: the tussah long filament that the uniformity that will select is higher is washed removal of impurities, then carries out the shredding combing, then carries out the fabric preparation; Wherein, described washing is that 32～34 ℃, concentration are to keep 24～27 minutes in 7.6g/L soda ash water for first tussah long filament complete wetting that the described uniformity of selecting is higher in temperature, complete wetting keeps 22～24min in temperature is the low temperature distillation water of 27～29 ℃ again, and then taking out the tussah long filament is that 26～28 ℃ of low temperature carry out the low temperature indirect dewatered drying in temperature; Described shredding combing be before shredding the higher tussah filament surface of the described uniformity of selecting evenly a small amount of temperature of spraying be that 32 ℃, concentration are that every premium on currency contains 0.006 cationic surfactant solution, again by opener shredding and combing machine for fur combing, further remove impurity, and break into the tussah long filament that crimpness is arranged of 79～82mm; The preparation of described fabric is the tussah silk textiles that the above-mentioned tussah long filament that crimpness is arranged of breaking into 79～82mm is prepared, and the described tussah silk textiles that is prepared into is the tussah silk bondedfibre fabric that the tussah silk knitted fabric that is woven into or the tussah silk woven fabric that is woven into or water sting;
(2) prepare dressing liquid: it is evenly to be mixed to get the homogeneous mixed liquor in the acid solution of 10～80g/L that the concentration chitosan solution that is 0.01～10g/L is added concentration, wherein, the acid in described acid solution is BTCA, citric acid, poly, maleic anhydride or tartaric acid, then adding concentration in above-mentioned homogeneous mixed liquor is the ortho phosphorous acid sodium solution of 10～60g/L, after full and uniform dissolving, add again 0.075 ~ 0.085g polyvinylpyrrolidone, after abundant dispersed with stirring is even, in the described well-beaten while, dropwise add the sodium tripolyphosphate solution of concentration as 20g/L take 15 droplets/minute, and take 28～30/min, dropwise add concentration as 0.01～10g/L nanometer titanium dioxide titanium solution, after dropwise adding sodium tripolyphosphate solution and nanometer titanium dioxide titanium solution, obtain again nano titanium oxide and Nano chitosan finishing functions liquid after strong stirring, wherein said nano titanium oxide is nanometer anatase titania or rutile type nano titanic oxide, the ortho phosphorous acid sodium solution that above-mentioned concentration is the chitosan solution of 0.01～10g/L, acid solution that concentration is 10～80g/L, concentration is 10～60g/L, sodium tripolyphosphate solution, the concentration that concentration is 20g/L are that the volume ratio of 0.01～10g/L nanometer titanium dioxide titanium solution is 7～9:10～13:9～12:11～14:7～9,
(3) carrying out tussah silk textiles arranges: in described nano titanium oxide and Nano chitosan finishing functions liquid in the tussah silk textiles immersion step (2) that is prepared into described in step (1), dip time is 36～38min, two soak two rolls, and pressure is 0.9kg/m
2, liquid carrying rate is 70～90%, in temperature, is preliminary drying 5min in the convection oven of 80 ℃, stagnate 1 min, being preliminary drying 5min in the convection oven of 80 ℃ in temperature again, is then to bake 3min under 165～168 ℃ in temperature, be washed to neutral after after temperature is the low temperature drying of 27～29 ℃ and get final product.
2. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described low temperature indirect dewatered drying in step (1) be roll speed be 118 turn/wrap up the tussah long filament by science fabric in the drying drum of min, the tussah long filament is not directly contacted with cylinder, and bowl temperature remains on 26 ℃ always.
3. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described concentration in step (2) is that the particle diameter of Nano sol of 0.01～10g/L nanometer titanium dioxide titanium solution is less than 100nm, in described nano titanium oxide and Nano chitosan finishing functions liquid, the particle diameter that mixes Nano sol of Nano chitosan and nano titanium oxide is less than 100nm.
4. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, described in step (2), BTCA is the crosslinking agent of environment-friendly type, make between shitosan and silk tussah fibre and form covalent bond, improve simultaneously the crease-resistant crease resistance of tussah silk textiles.
5. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, it is characterized in that, the fiber surface that step (3) is carried out the tussah silk textiles after tussah silk textiles arranges has the uniform Nano chitosan of one deck and nano titanium oxide.
6. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, is characterized in that, the tussah silk textiles that step (3) is carried out after tussah silk textiles arranges is the antimicrobial form tussah silk textiles.
7. functionalized nano shitosan according to claim 1 and nano-titanium dioxide modified tussah silk textiles, is characterized in that, the tussah silk textiles that step (3) is carried out after tussah silk textiles arranges is easy dyeing type tussah silk textiles.
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