CN103437146B - Nano-fabric finishing agent and its preparation method and application - Google Patents
Nano-fabric finishing agent and its preparation method and application Download PDFInfo
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Abstract
A kind of nano-fabric finishing agent, formulated by appended percentage by weight by following composition; Solvent 70-95%; Ultraviolet light screener 1-10%; Surface conditioning agent 0.1-10%; Antimicrobial auxiliary agent 0.01-1%; Slurry stabilizing agent 0.05-5%; Film forming agent 0.1-10%.The preparation method of above-mentioned nano-fabric finishing agent first prepares solvent, and then ultraviolet light screener, surface conditioning agent, antimicrobial auxiliary agent, slurry stabilizing agent, film forming agent are added successively in solvent, dispersed with stirring is even.Nano-fabric finishing agent of the present invention is used for carrying out surface treatment to fabric, makes fabric have shielding ultraviolet rays and antibacterial and mouldproof performance.
Description
Technical field
The present invention relates to Chemical composition that, particularly relate to nano-fabric finishing agent and its preparation method and application.
Background technology
Along with mankind's activity is to the destruction of atmospheric ozone layer, ultraviolet radiation is one of grave danger becoming human health, increases the probability that the mankind suffer from cutaneum carcinoma.Nowadays uvioresistant cosmetics, commodity sales volume increase sharply, but its protective capacities, protected area and action time are limited after all.Therefore, utilize that area is larger, the textiles of better protecting effect carrys out the excessive injury of shielding of ultraviolet to human body, become the barrier that protection skin is attacked from ultraviolet, become an important direction.
According to the difference of protective mechanism, the ultraviolet light screener type used can be divided into two kinds, one is the agent of mineral-type ultraviolet reflection, as titanium dioxide, zinc oxide, talcum powder, potter's clay, calcium carbonate etc., they all have higher refractive index, add in fabric, fabric face can be increased to ultraviolet reflection and scattering; Another kind is organic ultra-violet absorber, and the mechanism of action mainly has absorbability to ultraviolet, and plays the effect of antiultraviolet, and conventional has benzophenone and benzotriazole etc.
At present, the production of domestic and international Ultraviolet Resistant Textiles, is mainly divided into two large classes: one be by be polymerized or spinning time add people's screening uv-ray agent, obtained ultraviolet prevention fiber, lastingly, washability is good for fiber obtained like this and fabric anti-ultraviolet function.But inorganic particle and polymeric matrix poor compatibility, easily reunite and block spinneret orifice, shorten the life-span of spinnerets, difficulty of processing is large, and cost is high, and be not suitable for natural fabric and fabric (as goods such as various cotton, fiber crops, real silk, wools) thereof, therefore application report is little.Second method is finishing method, utilizes screening uv-ray agent dipping or coating in fabric face, plays protective action.The method technique simple and flexible, wide application is the mainstream technology of current fabric UV resistance modification.
Such as, ZL200620083970.3 discloses a kind of preparation method of UV resistance towel, is obtained by towel yarn by the finishing agent impregnation process containing nano-ZnO or TiO2, and the method technique is simple, but poor durability; ZL200710022689.8 discloses nanometer durable ultraviolet ray resistant textiles, take nano-metal-oxide as anti ultraviolet agent, polyurethane, polyacrylate etc. are film forming agent, process fiber, and finally form the epithelium structure of one deck containing nano anti-ultraviolet particle on its surface, the method technique is comparatively complicated, and cost is higher.All the other methods also having some similar, but above-mentioned technology is in the process for treating surface of nano particle, goes back existing defects.Cause the stability of finishing agent not high, nano particle is easily reunion, sedimentation in the slurry, thus affects UV resistance treatment effect.
On the other hand, harmful microbe is propagated and bred is one of principal element of harm humans health always.Each kind fabric, apparel applications are extensive, give its effective anti-harmful microorganism performance, for protection human health, improve the quality of living and even extend service life of textiles, being all of great significance.
Summary of the invention
Object of the present invention, makes fabric nano-fabric finishing agent with shielding ultraviolet rays and antibacterial and mouldproof performance and its preparation method and application to provide a kind of exactly.
To achieve these goals, present invention employs following technical scheme: a kind of nano-fabric finishing agent, formulated by appended percentage by weight by following composition;
Described solvent is the mixed solvent of ethanol and water, and wherein the weight percentage of ethanol is 2-50%, and this mixed solvent inorganic acid is or/and inorganic base adjust ph is between 3-12.The effect of ethanol is the surface tension reducing slurry, increases and the compatibility of fabric fibre and the volatility of solvent.But too much ethanol can increase cost on the one hand, on the other hand because ethanol is combustible material, there is potential safety hazard.
Described ultraviolet light screener is selected from the mixture of one or more of titanium dioxide, zinc oxide, aluminium oxide, talcum powder, calcium carbonate, and its particle diameter is between 50-1000 nanometer.Above-mentioned powder has higher refractive index and lower ultraviolet permeability, based on considering of effect and cost, and wherein preferably titanium dioxide and zinc oxide.
Described surface conditioning agent is selected from the one in silane coupler or titanate coupling agent, and described silane coupler comprises KH550, KH560, KH570, and described titanate coupling agent comprises NXT-105, NXT-101.The effect of surface conditioning agent makes nano inorganic powder dispersed in a solvent, prevents it from reuniting.On the other hand, strengthen the binding ability between inorganic particle and fabric fibre or film forming agent, ensure the durability of UV resistance finishing effect.
Described antimicrobial auxiliary agent is selected from one or more in methyl hydroxybenzoate, ethylparaben, butyl hydroxybenzoate, triclosan, isothiazolinone etc.Above-claimed cpd has broad-spectrum high efficacy, stable performance, easy to use and to human safety high, be applicable to the antimicrobial finish of textiles, and is insoluble in water due to it, can not run off because of washing, persistence that can be in order to be effective.
Described slurry stabilizing agent is selected from one or more in polyacrylamide, sodium carboxymethylcellulose, hydroxyethylcellulose, sodium alginate.Above-mentioned substance has the effects such as thickening, suspension, bonding, emulsification, dispersion, effectively can improve nano inorganic powder dispersion in a solvent, improve Stability of Slurry and freeze-thaw resistance in storage and transport process, prevent pigment, filler sinks to the bottom caking.
Described film forming agent is selected from one or several in polyacrylate, polyurethane, polysiloxanes.The effect of film forming agent forms film on fabric fibre surface, and by having, the inorganic particle of uv-shielding capacity and antimicrobial auxiliary agent etc. are wherein coated, to improve the durability of protection effect.Meanwhile, be the feel and the breathable moisture permeability that prevent coating from affecting fabric, the present invention will select solution or the emulsion of the above-mentioned polymer of water-soluble or water-dispersion type.
The preparation method of above-mentioned nano-fabric finishing agent, comprises the following steps:
A, to be mixed by proportioning with water by ethanol, and with inorganic acid or/and inorganic base adjust ph is between 3-12, be mixed with solvent, wherein the weight percentage of ethanol is 2-50%;
B, get the solvent of proportional quantity, and in solvent, add the ultraviolet light screener of proportional quantity, stir 10-40 minute;
C, in step B gained solution, add the surface conditioning agent of proportional quantity, stir 20-60 minute;
D, the antimicrobial auxiliary agent adding proportional quantity in step C gained solution successively, slurry stabilizing agent and film forming agent, stir, obtain finely dispersed oyster white slurries, is nano-fabric finishing agent.
The application of above-mentioned nano-fabric finishing agent is for carrying out surface treatment to fabric, makes fabric have shielding ultraviolet rays and antibacterial and mouldproof performance.
Described surface treatment is at room temperature flooded with nano-fabric finishing agent by clean fabric, then through cold rolling at room temperature, baking, roasting, adheres to one deck nano-fabric finishing agent securely at textile surface.
Described fabric is natural fabric, science fabric or natural fabric and chemical fibre blended fabric, and described natural fabric comprises cotton, fiber crops, real silk, wool, and described chemical fibre comprises terylene, polyamide fibre, polypropylene fibre, acrylic fibers, viscose.
Through the fabric that nano-fabric finishing agent of the present invention arranges, on the basis keeping original wearability (as pliability, moisture-penetrable ventilated property etc.), give the excellent UV resistance of fabric and antibacterial and mouldproof performance, the ultraviolet of in daylight more than 90% can be shielded, simultaneously to common are harmful microorganism, well suppress killing action as Escherichia coli, staphylococcus aureus, Pseudomonas aeruginosa, mould etc. have.
Nano-fabric finishing agent of the present invention adopts coupling agent to carry out surface treatment to powder and combines with thickener, and nano particle can be made to disperse to stable and uniform in the slurry.
Nano-fabric finishing agent of the present invention, except have employed ultraviolet light screener, additionally uses the auxiliary agent and film forming agent with the antimicrobial function of high-efficiency broad spectrum, the problem such as the similar finishing agent technical functionality solving prior art is single, effect is not lasting.
Detailed description of the invention
Embodiment 1
The preparation of the antimicrobial polyester fabric of a kind of nanometer UV resistance
(1) preparation of finishing agent: 50g ethanol is mixed with 850g water, add appropriate dilute sulfuric acid, between adjust ph to 3-4, add 50g nanometer Zinc oxide powder, with mulser with 2000 revs/min of high speed dispersion 20 minutes, then 5g silane coupler KH560 is added, continue high-speed stirred 30 minutes, and then add 0.2g triclosan successively, 10g sodium carboxymethylcellulose and 15g soluble polyurethane are (as the Impranil series of German Bayer, or the Elastron series etc. of Japanese first pharmacy), continue stirring again 1 hour, obtain the good white slurry of stability and finishing agent,
(2) Final finishing of fabric: pure polyester filament fabric, process according to following technique: washing (remove surface size or finish), room temperature immersion (1kg finishing agent joined by 1.5kg fabric), cold rolling at room temperature (pick-up rate is about about 70%, again repeated impregnations-cold-rolled process once, preliminary drying (90 DEG C, 5 minutes), roasting (110 DEG C, 3 minutes).
Embodiment 2
A kind of preparation of nanometer UV resistance antimicrobial polyester-cotton blend (40/60) blended yarn woven fabric
(1) preparation of finishing agent: 350g ethanol is mixed with 450g water, add appropriate NaOH weak solution, between adjust ph to 11-12, add 12g nano-titanium dioxide powder, with mulser with 1500 revs/min of high speed dispersion 10 minutes, then 3g titanate coupling agent NXT-105 is added, continue high-speed stirred 25 minutes, and then add 1.5g butyl hydroxybenzoate successively, 12g polyacrylamide and 10g soluble polyurethane are (as the Impranil series of German Bayer, or the Elastron series etc. of Japanese first pharmacy), continue stirring again 40 minutes, obtain the good white slurry of stability and finishing agent,
(2) Final finishing of fabric: polyester-cotton fabric, process according to following technique: washing (remove surface size or finish), room temperature immersion (1kg finishing agent joined by 1.5kg fabric), cold rolling at room temperature (pick-up rate is about about 70%, again repeated impregnations-cold-rolled process once, preliminary drying (90 DEG C, 8 minutes), roasting (110 DEG C, 5 minutes).
Embodiment 3
The preparation of the antimicrobial silk fabric of a kind of nanometer UV resistance
(1) preparation of finishing agent: 20g ethanol is mixed with 980g water, add appropriate NaOH weak solution, about adjust ph to 10, add the mixed powder of 25g nano zine oxide and 5g titanium dioxide, with mulser with 2500 revs/min of high speed dispersion 20 minutes, then 5g titanate coupling agent NXT-101 is added, continue high-speed stirred 30 minutes, and then add the chloro-2 methyl-4-isothiazoline-3-ketone aqueous solution of 5-that 20g concentration is 2.5%wt successively, 15g sodium alginate and 60g PMA and acrylate copolymer emulsion (solid content 40%), continue stirring again 1 hour, obtain the good white slurry of stability and finishing agent,
(2) Final finishing of fabric: silk fabric, process according to following technique: washing (remove surface size or finish), room temperature immersion (1kg finishing agent joined by 2kg fabric), cold rolling at room temperature (about about 50%, the preliminary drying (50 DEG C of pick-up rate, 10 minutes), roasting (80 DEG C, 6 minutes).
Embodiment 4
The preparation of a kind of nanometer UV resistance antimicrobial wool acrylic fibers (50/50) blended yarn woven fabric
(1) preparation of finishing agent: 100g ethanol is mixed with 450g water, add appropriate dilute sulfuric acid, between adjust ph to 4-5, add 40g nano zine oxide and the talcous mixed powder of 35g, with mulser with 2500 revs/min of high speed dispersion 15 minutes, then 6g Silane coupling agent KH550 is added, continue high-speed stirred 20 minutes, and then add 0.2g triclosan successively, 1.1g ethylparaben, 12g hydroxyethylcellulose and 35g siloxanes (Syleoff23 etc. as Dow-Corning company), continue stirring again 1 hour, obtain the good white slurry of stability and finishing agent,
(2) Final finishing of fabric: wool acrylic fibers blended yarn woven fabric, process according to following technique: washing (remove surface size or finish), room temperature immersion (1kg finishing agent joined by 1kg fabric), cold rolling at room temperature (pick-up rate is about about 60%, again repeated impregnations-cold-rolled process once, preliminary drying (60 DEG C, 10 minutes), roasting (110 DEG C, 5 minutes).
Fabric prepared in above-described embodiment, according to GB/T18830-2009, detect the uvioresistant performance of fabric, for the ultraviolet of wavelength at 190-400nm, its UFR value is greater than 50.(UFR is Ultraviolet Protection Factor, for skin unshielded time the ultraviolet radiation average effect that calculates and skin have the ratio of the ultraviolet average effect calculated during fabric protective.)
The anti-microbial property of fabric prepared in above-described embodiment, adopt succusion (see GB/T20944.3-2008) to detect, fungicidal properties detects with reference to GB/T2423.16-1999, and result is as shown in table 1.
Table 1
Note: what fungus-proof test was tested is the mixed bacteria comprising aspergillus niger, Aspergillus terreus, scopulariopsis brevicaulis, multi-trunk natalensis, Paecilomyces varioti, reddish brown mould, penicillium funiculosum, Trichoderma viride etc.
Claims (7)
1. a nano-fabric finishing agent, is characterized in that: formulated by appended percentage by weight by following composition;
Described solvent is the mixed solvent of ethanol and water, and wherein the weight percentage of ethanol is 2-50%, and this mixed solvent inorganic acid is or/and inorganic base adjust ph is between 3-12;
Described ultraviolet light screener is selected from the mixture of one or more of titanium dioxide, zinc oxide, aluminium oxide, talcum powder, calcium carbonate, and its particle diameter is between 50-1000 nanometer;
Described antimicrobial auxiliary agent is selected from one or more in methyl hydroxybenzoate, ethylparaben, butyl hydroxybenzoate, triclosan, isothiazolinone;
Described film forming agent is selected from one or several in polyacrylate, polyurethane, polysiloxanes.
2. nano-fabric finishing agent as claimed in claim 1, it is characterized in that, described surface conditioning agent is selected from the one in silane coupler or titanate coupling agent, and described silane coupler comprises KH550, KH560, KH570, and described titanate coupling agent comprises NXT-105, NXT-101.
3. nano-fabric finishing agent as claimed in claim 1, is characterized in that: described slurry stabilizing agent is selected from one or more in polyacrylamide, sodium carboxymethylcellulose, hydroxyethylcellulose, sodium alginate.
4. the preparation method of nano-fabric finishing agent according to claim 1, is characterized in that, comprise the following steps:
A, to be mixed by proportioning with water by ethanol, and with inorganic acid or/and inorganic base adjust ph is between 3-12, be mixed with solvent, wherein the weight percentage of ethanol is 2-50%;
B, get the solvent of proportional quantity, and in solvent, add the ultraviolet light screener of proportional quantity, stir 10-40 minute;
C, in step B gained solution, add the surface conditioning agent of proportional quantity, stir 20-60 minute;
D, the antimicrobial auxiliary agent adding proportional quantity in step C gained solution successively, slurry stabilizing agent and film forming agent, stir, obtain finely dispersed oyster white slurries, is nano-fabric finishing agent.
5. the application of nano-fabric finishing agent according to claim 1, is characterized in that: for carrying out surface treatment to fabric, makes fabric have shielding ultraviolet rays and antibacterial and mouldproof performance.
6. the application of nano-fabric finishing agent as claimed in claim 5, it is characterized in that: described surface treatment is at room temperature with nano-fabric finishing agent dipping by clean fabric, then through cold rolling at room temperature, baking, roasting, one deck nano-fabric finishing agent is adhered to securely at textile surface.
7. the application of nano-fabric finishing agent as claimed in claim 5, it is characterized in that: described fabric is natural fabric, science fabric or natural fabric and chemical fibre blended fabric, described natural fabric comprises cotton, fiber crops, real silk, wool, and described chemical fibre comprises terylene, polyamide fibre, polypropylene fibre, acrylic fibers, viscose.
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