CN1687506A - Collating technique for nano self cleaning carpet - Google Patents
Collating technique for nano self cleaning carpet Download PDFInfo
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- CN1687506A CN1687506A CN 200510050254 CN200510050254A CN1687506A CN 1687506 A CN1687506 A CN 1687506A CN 200510050254 CN200510050254 CN 200510050254 CN 200510050254 A CN200510050254 A CN 200510050254A CN 1687506 A CN1687506 A CN 1687506A
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Abstract
The present invention discloses a finishing technics of the nano self-clean-up carpet. Adopt the nanometer self-clean-up finishing agent confected by nanometer TiO2 powers. the nanometer self-clean-up finishing agent is made into nanometer finishing liquid through emulsification. Pour the nanometer finishing liquid into the 30 Deg. C steeping liquid that is 1 to 10 by weight with the carpet fabric, churn up them equably, then put the laundered and dehydrated carpet into the said dipping liquid to steep. After 30 minutes' steeping, dehydrate it, and drying the dehydrated carpet corresponding to the fabric according to its drying technologic requirement. Make the nanometer TiO2 material hard adsorbed into the carpet fabric. The light catalysis makes carpet achieve the efficacy of self-clean-up. The carpet tidied by the present invention has good self-clean-up effect to organic smear under illuminating condition. Besides it has better wash degree. At the same time, it keeps the previous style of carpet.
Description
Technical Field
The invention relates to a self-cleaning process of fabrics, in particular to a finishing process of a nano self-cleaning carpet. By using nano TiO2The nano finishing liquid developed by the powder carries out after-finishing on the carpet, so that the carpet achieves the photocatalysis self-cleaning effect.
Background
The invention carpet cleaner, application number ZL01812821.1, 2001, 07/11, provides an improved quick foam breaking carpet cleaner that allows for quick cleaning and use of the carpet without the need for subsequent vacuum cleaning, resulting in effective cleaning and quick foam breaking. Because the components comprise a solvent system of one or more organic solvents and a high molecular chemical composition which is not easily soluble in water, the substances are easy to cause secondary pollution and have irritation when being cleaned.
The invention 'fabric processing method with super-amphipathy/super-amphiphobic composite function', which is applied for 27.09.2001 and with application number ZL01141502.9, adopts the following steps of (1) processing a fabric by using non-polymeric gas low-temperature plasma: putting the fabric into a treatment tank, wherein the pressure in the treatment tank is less than or equal to 10 Pa; introducing non-polymeric gas, and adjusting the pressure to 10-200 Pa; then, applying voltage to the electrodes arranged in the processing tank, performing glow discharge, and performing low-temperature plasma processing; treating for 3-600 seconds to obtain the super-amphiphilic fabric; (2) and (3) carrying out local dipping, coating or spraying super-amphiphobic treatment on the super-amphiphobic fabric by adopting an organic fluorine finishing agent to obtain the fabric simultaneously provided with the super-amphiphobic part and the super-amphiphobic part. The organofluorine finish also contains toxic chemical components, which cause secondary pollution and irritation problems that are not solved.
The need of environmental protection and energy saving, people have developed the research of self-cleaning technology. For example, Japanese patent laid-open No. 9-71437 discloses a window glass having a self-cleaning function, wherein TiO is attached to the surface of the glass2A film. The carpet is soft and thick in texture, rich in elasticity, good in sound insulation and heat insulation effects, easy to store dirt and dirt, such as dust, fiber fragments, even a large amount of organic matters such as oil stain, oil stain and fatty substances are attached, time and labor are wasted in cleaning, and secondary pollution is easily caused; however, there has been no discussion on the use of nano TiO2The finishing agent developed by the powder carries out after-finishing on the carpet, so that the carpet achieves the report of the photocatalysis self-cleaning effect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a finishing process of a nano self-cleaning carpet aiming at the defects of the prior art, wherein nano TiO is adopted2The nano finishing liquid developed by powder is used for carrying out after-finishing on the carpet so as to achieve photocatalysis self-cleaningThe efficacy of cleaning.
The technical scheme adopted by the invention for solving the technical problems is as follows: a finishing process of a nano self-cleaning carpet adopts the following measures: comprises adopting nano TiO2The nano self-cleaning finishing agent is prepared from powder, the nano self-cleaning finishing agent is emulsified to prepare nano finishing liquid, the nano finishing liquid is poured into soaking liquid which is prepared with carpet fabric according to the weight ratio of 1: 10 and has the water temperature of 30 ℃, the soaking liquid is uniformly stirred, and the carpet after being cleaned and dehydrated is uniformly placed into the soaking liquid for soaking; after soaking for 30 minutes, dewatering, and drying the carpet corresponding to the dewatered fabric according to the drying process requirement; make the nano TiO2The material is firmly absorbed into the carpet fabric; the photocatalysis enables the carpet to achieve the self-cleaning effect.
The preparation steps of the nano self-cleaning finishing agent comprise:
(1) putting the measured nano titanium dioxide into a container;
(2) stirring the nano titanium dioxide in the container and adding ethanol which is 5 times of the weight of the nano titanium dioxide;
(3) stirring and adding water with the weight being 20 times that of the nano titanium dioxide into the container for dilution;
(4) stirring and filling a dispersing agent with the weight 1.5 times that of the nano titanium dioxide into the container;
(5) adding a plurality of water, and preparing before emulsification.
The nano finishing liquid has ① self-cleaning and deoiling capacity on organic oil stain of fabric, ② strong binding force with fabric, rinsing resistance and normal self-cleaning performance.
The above-mentioned nano TiO2The weight of the nano TiO is 1-2.5% of the weight of the carpet fabric2The particle size of the fixed particles is 20-40 nm.
The dispersant adopts Tween-80, and the dosage is nano TiO21.5 times of; the Tween-80 is a condensation product of sorbitan monostearate and ethylene oxide, is a yellow paste, has a hydroxyl value of 80-110, is saponified by 40-60, has an acid value of less than or equal to 2, can be dissolved in warm water at 40 ℃ and is insoluble in oil,the water/oil phase emulsifier with wetting, foaming and dispersing effects can be mixed with various surfactants.
The emulsification step comprises:
(1) placing the nano self-cleaning finishing agent into a container, and mounting the container on an emulsifying machine;
(2) inserting a power supply of the high-shear emulsifying machine, starting a switch, starting acceleration from low speed to high speed after the emulsifying machine automatically corrects and returns to zero, and adopting inching during acceleration until the speed is 100 rpm or 5000 rpm each time;
(3) emulsifying for 30-50 minutes while keeping the emulsifying rotating speed of 5000 r/min;
(4) inching and decelerating until 0 r/min, and turning off the power supply of the emulsifying machine.
The continuous work of the emulsifying machine is not suitable for more than 50 minutes, and the rotating speed is not suitable for more than 6000 revolutions per minute; the machine is stopped for at least 30 minutes after continuous working for 50 minutes, so that the emulsifying machine can fully dissipate heat.
The drying process comprises the steps of pre-drying the dehydrated carpet in a dryer at about 70 ℃, then heating to 110 ℃ for baking for 60 minutes, and cooling to room temperature.
Compared with the prior art, the invention adopts the nanometer TiO in the post-finishing process of carpet production2The nano self-cleaning finishing agent prepared for the main component is emulsified to prepare nano finishing liquid, the carpet is dehydrated by soaking the nano finishing liquid for 30 minutes, and the carpet corresponding to the dehydrated fabric is dried according to the drying process requirement; make the nano TiO2The material is firmly absorbed into the carpet fabric; the photocatalysis enables the carpet to achieve the self-cleaning effect. The carpet finished by the invention has good self-cleaning effect on organic oil stains under the condition of illumination, has better washing fastness, and simultaneously keeps the original style of carpet fabric. Nano TiO 22The photocatalysis application technology has simple process and low cost, can catalyze and decompose bacteria and organic pollutants by utilizing natural light, has the characteristics of high catalytic activity, good chemical stability and thermal stability, no secondary pollution, no irritation, safety, no toxicity and the like, can be beneficial to the ecological natural environment for a long time, and has the most important effect of developingOne of green and environment-friendly catalysts with a prospect.
Detailed Description
The present invention will be described in further detail with reference to examples.
The invention discloses a finishing process of a nano self-cleaning carpet, which is characterized by comprising the following steps:
(1) selecting nano titanium dioxide powder with strong photocatalytic effect and low cost and granularity of 20-40 nm as a nano material for preparing the nano self-cleaning finishing agent;
(2) the preparation of the nano self-cleaning carpet finishing agent is characterized in that on the basis of theoretically analyzing various factors influencing the full dispersion of nano particles, the influencing factors are more embodied by a mathematical method, and a set of dispersion scheme capable of guiding the practical application is concluded. Which includes the selection of the appropriate dispersant and the determination of the optimum dispersion process (including factors such as PH, dispersion medium, temperature, manner of emulsification and time).
(3) A method for nano self-cleaning after-finishing of a carpet needs to select a finishing method which is suitable for enterprise production and can ensure that a nano self-cleaning finishing agent can be fully adsorbed and is uniformly adsorbed. Meanwhile, the finished textile has excellent self-cleaning property.
Firstly, preparing, weighing the carpet blank to be finished by weight before washing, recording, and calculating the formula MTiO2Calculating the weight of the required nano titanium dioxide powder on the basis of 1-2.5% of M fabric; weighing the weight of the nano titanium dioxide powder with the granularity of 20-40 nm according to the process requirement; according to the formula M Tween ═ 1.5 MTiO2And M ethanol ═ 5 MTiO2And calculating the dosages of the Tween and the ethanol, wherein the densities of the Tween and the ethanol are approximately calculated according to 1g/cm3, and the corresponding volume milliliter number can be directly measured according to the calculated mass gram number.
The dispersant is preferably tween-80, and the dosage is nano TiO21.5 times of; the Tween-80 is a condensation product of sorbitan monostearate and ethylene oxide, is a yellow paste, has a hydroxyl value of 80-110, is saponified by 40-60, has an acid value of less than or equal to 2, and can be dissolved in warm water at 40 DEG CThe water/oil phase emulsifier which is insoluble in oil and has wetting, foaming and dispersing effects can be mixed with various surfactants.
Adopting the nano TiO2The nano self-cleaning finishing agent is prepared by powder, Tween-80 and ethanol in proportion. The preparation method of the nano self-cleaning finishing agent comprises the following steps: (1) putting the measured nano titanium dioxide into a container; (2) stirring the nano titanium dioxide in the container and adding ethanol which is 5 times of the weight of the nano titanium dioxide; (3) stirring and adding water with the weight being 20 times that of the nano titanium dioxide into the container for dilution; (4) stirring and filling a dispersing agent with the weight 1.5 times that of the nano titanium dioxide into the container; (5) adding a plurality of water, and preparing before emulsification.
The emulsification step comprises: (1) placing the nano self-cleaning finishing agent into a container, and mounting the container on an emulsifying machine; (2) inserting a power supply of the high-shear emulsifying machine, starting a switch, starting acceleration from low speed to high speed after the emulsifying machine automatically corrects and returns to zero, and adopting inching during acceleration until the speed is 100 rpm or 5000 rpm each time; (3) emulsifying for 30-50 minutes while keeping the emulsifying rotating speed of 5000 r/min; (4) inching and decelerating until 0 r/min, and turning off the power supply of the emulsifying machine. It should be noted that the continuous operation of the emulsifying machine is not suitable for more than 50 minutes, and the rotating speed is not suitable for more than 6000 rpm; the machine is stopped for at least 30 minutes after continuous working for 50 minutes, so that the emulsifying machine can fully dissipate heat.
The nano self-cleaning finishing agent is emulsified to prepare nano finishing liquid, the nano finishing liquid has ① self-cleaning and deoiling capacity on organic oil stains of fabrics, ② has strong binding force with the fabrics, rinsing resistance and normal self-cleaning performance, ③ has no side effect on human bodies, does not pollute the environment, has good safety, ④ is easy to apply, and the quality and style of the fabrics are maintained.
Pouring the emulsified nano finishing liquid into a soaking liquid which is prepared by the weight of 1: 10 of the carpet fabric and has the water temperature of 30 ℃, uniformly stirring, uniformly soaking the cleaned and dehydrated carpet into the soaking liquid, and requiring all the carpet to be soaked in the soaking liquid; after 30 minutes of soaking, the carpet is taken out for dehydration, and the soak solution discharged in the dehydration is recycled. Raw in batchesDuring production, the nano finishing liquid is used up in one day as much as possible; if the nano-particles are not used up in one day, the nano-particles should be first integrated when used in the next dayThe temperature of the conditioning solution was raised to about 35 ℃ and then stirred with a stirring gun (industrial) for 30 minutes, so that the conditioning solution was ready for use. Pre-drying the dewatered carpet corresponding to the fabric in a dryer at about 70 ℃, then heating to 110 ℃, baking for 60 minutes, and cooling to room temperature. The nano TiO can be made2The material is firmly absorbed into the carpet fabric.
Nano TiO 22Basic principles of oleophobicity, hydrophobicity, and stain removal: the band gap energy of the nano titanium dioxide is 32ev, which is equivalent to the photon energy with the wave length of 387.5 nm. When irradiated by ultraviolet light with a wavelength of less than 387.5nm, valence layer electrons are excited to a conduction band, so that electron-hole pairs with strong activity are generated, oxygen in the air is activated, and active oxygen (O) is generated2 -) And free radicals (OH).
Nano TiO 22The photocatalytic oxidation method is a photosensitive oxidation method based on the band theory of an N-type semiconductor and using the N-type semiconductor as a sensitizer. When light with energy larger than the forbidden band width irradiates the semiconductor catalyst, electrons on the valence band are excited to jump the forbidden band and enter the conduction band, and then electrons (e) are generated on the valence band-) The corresponding electron-hole, thereby initiating the reaction. When it is in water and air system, it can decompose free moving negatively charged electrons (e) under sunlight, especially ultraviolet light irradiation-) And positively charged holes (h)+) When the electron-hole pairs are formed, active electrons and holes can respectively migrate from a Conduction Band (CB) and a Valence Band (VB) of the semiconductor to a semiconductor/adsorbate interface and jump over the interface to oxidize and reduce the adsorbate; and meanwhile, the recombination of electrons and holes also exists.
Valence band hole (h)+) Make H adsorbed2O oxidation, conduction band electrons (e)-) By making O of air2Reduction, which comprises the following reaction processes:
in TiO2Surface generated OH and O2-The oxidizing power of the radicals is strong, and organic matters and bacterial organic matters can be oxidized and decomposed into CO by the radicals2And H2O。
O2 -The (active oxygen) and OH (free radical) have high reactivity, and when dirt is adsorbed on the surface of the dirt, the dirt is combined with free electrons and holes to generate redox reaction, so that the aim of removing the dirt is fulfilled. Meanwhile, the nano particles have high specific surface area and small size effect, and the fiber surface is uneven, so that an interface structure with complementary geometric shapes (concave-convex alternate) can be formed, and the nano particles can stably exist adsorbed gas atoms on the concave surface, so that a macroscopic gas film is formed, oil or water cannot be directly contacted with the surface of the fiber or fabric, and the fiber or fabric has the functions of oleophobic property and hydrophobic property just like the lotus leaf surface.
According to the above nano TiO2The basic principle of oleophobic, hydrophobic and stain removal, nano TiO firmly adsorbed into carpet fabric2A material; the carpet can achieve the self-cleaning effect by photocatalysis.
The carpet finished by the process of the invention obtains better self-cleaning effect and washing fastness, and basically has no influence on the hand feeling and appearance style of fabrics.
Claims (8)
1. A finishing process of a nano self-cleaning carpet is characterized by comprising the following steps: comprises adopting nano TiO2Preparing nano self-cleaning finishing agent from powder, emulsifying the nano self-cleaning finishing agent to prepare nano finishing liquid, pouring the nano finishing liquid into soaking liquid which is prepared by the weight of the nano self-cleaning finishing liquid and is mixed with carpet fabric at 30 ℃, stirring uniformly, and preparing the nano self-cleaning finishing liquidThe carpet after being cleaned and dehydrated is evenly put into the soaking solution for soaking; after soaking for 30 minutes, dewatering, and drying the carpet corresponding to the dewatered fabric according to the drying process requirement; make the nano TiO2The material is firmly absorbed into the carpet fabric; the photocatalysis enables the carpet to achieve the self-cleaning effect.
2. The finishing process of a nano self-cleaning carpet as claimed in claim 1, which is characterized in that: the preparation method of the nano self-cleaning finishing agent comprises the following steps:
(1) putting the measured nano titanium dioxide into a container;
(2) stirring the nano titanium dioxide in the container and adding ethanol which is 5 times of the weight of the nano titanium dioxide;
(3) stirring and adding water with the weight being 20 times that of the nano titanium dioxide into the container for dilution;
(4) stirring and filling a dispersing agent with the weight 1.5 times that of the nano titanium dioxide into the container;
(5) adding a plurality of water, and preparing before emulsification.
3. The finishing process of a nano self-cleaning carpet as claimed in claim 1, wherein the nano finishing liquid has ① self-cleaning and degreasing capability to organic oil stains of fabrics, ② strong binding force with fabrics, rinsing resistance and normal self-cleaning performance.
4. The finishing process of a nano self-cleaning carpet as claimed in claim 1, which is characterized in that: the nano TiO is2The weight of the nano TiO is 1-2.5% of the weight of the carpet fabric2The particle size of the fixed particles is 20-40 nm.
5. The finishing process of a nano self-cleaning carpet as claimed in claim 2, which is characterizedin that: the dispersant adopts Tween-80, and the dosage is nano TiO21.5 times of; the Tween-80 is a condensate of sorbitan monostearate and ethylene oxide, and is yellow pasteThe water/oil phase emulsifier has hydroxyl value of 80-110, saponification value of 40-60, acid value of less than or equal to 2, can be dissolved in warm water at 40 ℃, is insoluble in oil, has wetting, foaming and dispersing effects, and can be mixed with various surfactants.
6. The finishing process of a nano self-cleaning carpet as claimed in claim 1, which is characterized in that: the emulsification step comprises: (1) placing the nano self-cleaning finishing agent into a container, and mounting the container on an emulsifying machine;
(2) inserting a power supply of the high-shear emulsifying machine, starting a switch, starting acceleration from low speed to high speed after the emulsifying machine automatically corrects and returns to zero, and adopting inching during acceleration until the speed is 100 rpm or 5000 rpm each time;
(3) emulsifying for 30-50 minutes while keeping the emulsifying rotating speed of 5000 r/min;
(4) inching and decelerating until 0 r/min, and turning off the power supply of the emulsifying machine.
7. The finishing process of nano self-cleaning carpet as claimed in claim 6, which is characterized in that: the continuous work of the emulsifying machine is not suitable for more than 50 minutes, and the rotating speed is not suitable for more than 6000 revolutions per minute; the machine is stopped for at least 30 minutes after continuous working for 50 minutes, so that the emulsifying machine can fully dissipate heat.
8. The finishing process of a nano self-cleaning carpet as claimed in claim 1, which is characterized in that: the drying process comprises the steps of pre-drying the dehydrated carpet in a dryer at about 70 ℃, heating to 110 ℃, baking for 60 minutes, and cooling to room temperature.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845845A (en) * | 2012-09-26 | 2013-01-02 | 昆山市周市斐煌服饰厂 | Fouling-resisting shirt and manufacture process |
| CN103027569A (en) * | 2012-12-14 | 2013-04-10 | 常熟市凯鑫地毯有限公司 | Novel carpet |
| CN104988709A (en) * | 2015-06-24 | 2015-10-21 | 张家港市华阳针纺织品有限公司 | Method or cleaning stains on garment material |
| CN107552037A (en) * | 2017-08-02 | 2018-01-09 | 盐城工学院 | The preparation method of visible light composite photocatalyst and its method for sorting to bafta |
| CN108004660A (en) * | 2017-11-21 | 2018-05-08 | 海盐县硕创服装研究所 | A kind of antibiotic self-cleaning knitted fabric containing nano material |
| CN109397811A (en) * | 2018-11-06 | 2019-03-01 | 广东雅丽斯佳纺织科技有限公司 | A kind of stainblocked carpet and preparation method thereof |
| EP3786237A4 (en) * | 2018-04-23 | 2022-04-06 | Feng Liu | Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof |
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2005
- 2005-04-14 CN CN 200510050254 patent/CN1687506A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845845A (en) * | 2012-09-26 | 2013-01-02 | 昆山市周市斐煌服饰厂 | Fouling-resisting shirt and manufacture process |
| CN103027569A (en) * | 2012-12-14 | 2013-04-10 | 常熟市凯鑫地毯有限公司 | Novel carpet |
| CN104988709A (en) * | 2015-06-24 | 2015-10-21 | 张家港市华阳针纺织品有限公司 | Method or cleaning stains on garment material |
| CN107552037A (en) * | 2017-08-02 | 2018-01-09 | 盐城工学院 | The preparation method of visible light composite photocatalyst and its method for sorting to bafta |
| CN108004660A (en) * | 2017-11-21 | 2018-05-08 | 海盐县硕创服装研究所 | A kind of antibiotic self-cleaning knitted fabric containing nano material |
| EP3786237A4 (en) * | 2018-04-23 | 2022-04-06 | Feng Liu | Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof |
| US12084808B2 (en) | 2018-04-23 | 2024-09-10 | Feng Liu | Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof |
| CN109397811A (en) * | 2018-11-06 | 2019-03-01 | 广东雅丽斯佳纺织科技有限公司 | A kind of stainblocked carpet and preparation method thereof |
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