CN105420919A - Preparation method of photocatalyst formaldehyde-removal blanket - Google Patents
Preparation method of photocatalyst formaldehyde-removal blanket Download PDFInfo
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- CN105420919A CN105420919A CN201510741021.3A CN201510741021A CN105420919A CN 105420919 A CN105420919 A CN 105420919A CN 201510741021 A CN201510741021 A CN 201510741021A CN 105420919 A CN105420919 A CN 105420919A
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- photocatalyst
- dilute solution
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- formaldehyde
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/02—Cotton wool; Wadding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H17/00—Felting apparatus
- D04H17/10—Felting apparatus for felting between rollers, e.g. heated rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a photocatalyst formaldehyde-removal blanket. Regenerated fine-denier long-stapled cotton and low-melting-point fiber with the temperature of 110 DEG C are selected as the raw materials, and meanwhile a photocatalyst dilute solution is prepared; regenerated fine-denier long-stapled cotton and low-melting-point fiber with the temperature of 110 DEG C are put into an opener to be opened and enter a carding machine to be carded after being mixed by a mixer, and a web is output; a high-pressure spraying gun is started to continuously and evenly spray the photocatalyst dilute solution to the upper surface of the web when the web is output by the carding machine to enter a web laying machine; when the web loaded with the photocatalyst dilute solution sequentially enters the web laying machine, a high-temperature oven, a low-temperature oven, an ironing roller and a cooling machine, an ultraviolet lamp is always turned on to irradiate nanometer titanium dioxide. A felt is rapidly and sufficiently loaded with the photocatalyst dilute solution through a spraying process, and the photocatalyst dilute solution has an efficient catalytic effect on removing formaldehyde through the ultraviolet lamp.
Description
Technical field
The present invention relates to a kind of technology of preparing of interior material, specifically a kind of felt method of the cotton felt for the place such as in indoor, car.
Background technology
Cotton felt ubiquity used formaldehyde pollution in room and in automobile, and formaldehyde is comparatively high toxic material, has teratogenesis, carcinogenesis.The method that tradition eliminates formaldehyde has: ventilation method, active carbon adsorption and chemical method.Ventilation method and active carbon adsorption remove formaldehyde environment protection health, but consuming time and remove not thorough; It is time saving and energy saving that chemical method removes formaldehyde, but not environmentally, as chemical classes air treating product, obtained by Prof. Du Yucang mode, be much wherein aromatic compound, aromatic compound is nearly all containing to be proved to be or suspected of the benzene ring compound of carcinogen.In addition, a lot of chemical products is oxidizing, corrosivity, easily causes damage to vessel.
The preparation method of traditional cotton felt is: common regeneration cotton and 110 DEG C of low-melting fibers are first inputted opener in proportion and carries out shredding, mix through mixer and mix through hopper jarring machine, become net by single cylinder double doffer card again, lapping machine lapping, become felt finally by a baking oven bake pressure.Cotton felt prepared by this method, in use can to release formaldehyde in air without removing formaldehyde treated.
Photocatalyst refers to the nano TiO 2 possessing photochemical catalyst effect, charged group is provoked into after absorption energy, O2 and H2O being adsorbed on its surface can be oxidized to hydroxy radical, OH. very strong oxidisability is had with these compounds of active oxygen (particularly hydroxy radical), easily the chemical combination key of harmful substance can be opened, thus reach the object of decomposition.
Summary of the invention
The object of the invention is to solve existing cotton felt and there is formaldehyde pollution problem in use, propose the preparation method of a kind of photocatalyst except the cotton felt of formaldehyde, in cotton felt preparation process, remove formaldehyde efficiently, make the safety environmental protection again in use of cotton felt.
The technical solution adopted in the present invention is: the present invention adopts this felt equipment of opener, mixer, carding machine, lapping machine, high temperature oven, ironing roller and cooler set gradually from front to back, comprises the following steps:
(1) select the thin dawn long-staple cotton of regeneration and 110 DEG C of low-melting fibers as raw material, configure photocatalyst dilute solution simultaneously; Between high temperature oven and ironing roller, increase a low-temperature bake oven, high-pressure spray gun is housed to spray photocatalyst dilute solution at carding machine rear; A uviol lamp is respectively filled at the top of lapping machine, high temperature oven, low-temperature bake oven, ironing roller and cooler;
(2) thin for regeneration dawn long-staple cotton and 110 DEG C of low-melting fibers are put into opener shredding, after mixer mixing, enter carding machine combing and export web; Open high-pressure spray gun, enter in the process of lapping machine at carding machine output web and spray photocatalyst dilute solution at web upper surface continuous uniform; Load has the web of photocatalyst dilute solution in turn to enter lapping machine, high temperature oven, low-temperature bake oven, ironing roller and cooler, and uviol lamp is opened to irradiate nano titanium oxide all the time;
(3) the cotton felt of sizing exported from cooler cuts off shaping more on request.
Further, in step (1), the collocation method of photocatalyst dilute solution is: first in containing the ilmenite concentrate of titanium dioxide, add the agent of molten ore deposit, adds nanosized seeds and obtain medium molecule and reach nano level titanium dioxide after fired, acidolysis; Gather the Rabdosia rubescens of pure natural or the honeysuckle plant of nature growth again, after rinsing, sterilization, extract its active factors, obtained pH value is that neutral plant osmosis is refined liquid; Finally obtain photocatalyst dilute solution by the nano level titanium dioxide proportional arrangement adding 10 grams in every 1000 milliliters of liquid of refining.
In step (1), the weight ratio regenerating thin dawn long-staple cotton and 110 DEG C of low-melting fibers is 3:1.
In step (2), the temperature of high temperature oven remains on 220 DEG C, and the temperature of low-temperature bake oven remains on 100 DEG C.
The advantage that the present invention has after adopting technique scheme is:
1, the present invention adopts spray process, and every layer of lapping evenly sprays, and load is fully on felt fast to make this photocatalysis solvent of photocatalyst dilute solution, and removal formaldehyde is more comprehensive.
2, the titanium dioxide that the present invention adopts medium molecule to reach nanoscale (below 20nm) is main raw material, prepare stable photocatalyst retarder thinner, special photocatalyst solvent is used to be combined with the thin dawn long-staple cotton felt of regeneration, by photocatalyst technology, produce in the indoor meeting environmental requirement that effectively can remove formaldehyde or automobile and use cotton felt.
3, the present invention installs the ultraviolet (UV) fluorescent tube of 5 365nm altogether from lapping machine to cooler, makes photocatalysis solvent reach efficient catalytic effect.
4, in use, because of the effect of photocatalyst, before formaldehyde etc. touches air injury human body, fast decoupled is eliminated the cotton felt adopting the inventive method to prepare.Because photocatalyst is public as photochemical catalyst, it merely provides the place of reaction and itself does not participate in chemical reaction, belongs to harmless treatment, non-secondary pollution.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail
Fig. 1 is the process flow diagram of a kind of photocatalyst of the present invention except the preparation method of the cotton felt of formaldehyde.
Detailed description of the invention
First the present invention gets out raw material and configuration photocatalysis dilute solution, then traditional felt equipment is reequiped, in felt process, photocatalysis dilute solution is sprayed on web, carry out illumination with uviol lamp simultaneously, formaldehyde is just eliminated in felt process.Detailed process is as follows:
See Fig. 1, from cotton felt sound-absorbing and cost consideration, the thin dawn long-staple cotton of the regeneration that the present invention selects ratio suitable and 110 DEG C of low-melting fibers are as raw material, and 110 DEG C of low-melting fibers select the fiber of skin-core structure.The weight ratio regenerating thin dawn long-staple cotton and 110 DEG C of low-melting fibers is 3:1.
Configuring photocatalyst dilute solution selecting raw material: first select the ilmenite concentrate containing titanium dioxide is higher to be raw material, add the agent of molten ore deposit simultaneously, after fired, acidolysis, then adding nanosized seeds and obtain the titanium dioxide that medium molecule reaches nanoscale (below 20nm); Secondly gather the plant such as Rabdosia rubescens, honeysuckle of the pure natural of nature growth, after rinsing, sterilization, extract its active factors, obtained pH value is that neutral plant osmosis is refined liquid; Finally obtain photocatalyst dilute solution by the nano titanium oxide proportional arrangement adding 10 grams in every 1000 ml solns.For making photocatalyst dilute solution more stable, the present invention adds the food grade emulsifier of 5 milliliters in photocatalyst dilute solution, namely obtains stable not containing the photocatalyst dilute solution of any organic solvent and essence, nontoxic, free from extraneous odour, corrosion-free, environmental protection after fully stirring.
After raw material and photocatalyst dilute solution are got ready, existing traditional felt equipment is reequiped.Tradition felt equipment comprises the opener, mixer, single cylinder double doffer card, lapping machine, high temperature oven, ironing roller and the cooler that set gradually from front to back.During repacking, between high temperature oven and ironing roller, increase a low-temperature bake oven carry out low temperature and smoke.Namely set gradually carding machine, lapping machine, high temperature oven, low-temperature bake oven, ironing roller and cooler.Install the high-pressure spray gun in a ultra-fine aperture again at carding machine rear, the spout of high-pressure spray gun faces the web upper surface exported from carding machine, and its effect is that photocatalyst dilute solution is become rapidly vaporific being sprayed on web.
Because nano titanium oxide is better to the ultraviolet radiation absorption effect of below 400nm, and daylight middle-ultraviolet lamp is less, and therefore, the present invention adopts uviol lamp to irradiate nano titanium oxide.Through repeatedly repetition test, the ultraviolet (UV) lamp of the selected good 365nm of resultant effect, the ultraviolet (UV) lamp of a 365nm is respectively installed at the top of the lapping machine in felt equipment, high temperature oven, low-temperature bake oven, ironing roller, cooler, therefore, will install the ultraviolet (UV) lamp of 5 365nm altogether.
During felt, thin for regeneration dawn long-staple cotton and 110 DEG C of low-melting fibers are put into opener shredding in proportion, comprises pre-opener and smart opener; After mixer mixing, enter single cylinder double doffer card again, carry out air-flow combing and export web.During combing, by the 80g/m of single net grammes per square metre of carding machine by routine
2be adjusted to 60g/m
2, be beneficial to follow-up abundant absorption and spray solvent.Web is intersected lay-up on end curtain through lapping machine again by web.Now open high-pressure spray gun, make to enter in the process of lapping machine at carding machine output web to spray photocatalyst dilute solution at web upper surface continuous uniform, because this photocatalyst dilute solution is made up of the nano material of huge specific area and extracted form natural plant elite, there is larger dispersiveness and specific area, thus photocatalyst dilute solution can be made to be carried on fully fast on web.During spray photocatalyst dilute solution, by regulating spray gun valve to regulate spray flux, spray flux meets 40 ml/kg webs.
After the web of load photocatalyst dilute solution enters lapping machine, through the irradiation of the ultraviolet (UV) lamp at lapping machine top, the formaldehyde taking off a part of top layer can be divided.Web in turn enters high temperature oven, low-temperature bake oven, ironing roller and cooler again successively.In the process, ultraviolet (UV) lamp is opened all the time, fully to irradiate nano titanium oxide.The temperature of high temperature oven remains on 220 DEG C, and the formaldehyde in intermediate layer, through high temperature oven 220 DEG C of hot melt adhesives, while normal felt, is carried out volatilization degraded by web.The temperature of low-temperature bake oven remains on 100 DEG C, and web can carry out the formaldehyde of dry process Sum decomposition internal layer through low-temperature bake oven, eliminates formaldehyde further.Enter ironing roller from low-temperature bake oven web out, scald roller hot pressure surface up and down through ironing roller, the cooler internal cooling through open type is shaped into cotton felt.Finally cut into satisfactory cotton felt by the requirement of product final size.
The speed of service in suitable reduction felt process, can make web irradiation time longer, and Formaldehyde decomposition is more abundant, and therefore, web exports until cooling and shaping terminates from lapping machine, and whole process roughly needs 6-8 minute.In this process in web the ultraviolet (UV) lamp that contained nano level TiO2 installs through each equipment top irradiation under, electron hole pair (photocarrier) is produced owing to absorbing luminous energy, these holes to migrating to surface rapidly, and are activated H2O and the O2 of its surface attachment and produce hydroxy (-OH) and active oxygen (-O).And the extremely strong material of these two kinds of oxidisability can rapidly with the hydrocarbon reaction of the formaldehyde that adheres in cotton felt and the macromolecule such as bacterium, virus, generate harmless CO2 and water, thus fully effectively can divide materials such as taking off most of formaldehyde contained in cotton felt and can vapor away in time.
Detect with the cotton felt prepared by the inventive method, test item detects formaldehyde for main harmful substance, and result is as shown in table 1 below after testing, shows to be equal to or greater than 87.84 with the clearance of the cotton felt PARA FORMALDEHYDE PRILLS(91,95) prepared by the inventive method.
Table 1
。
Claims (8)
1. photocatalyst is except a preparation method for the cotton felt of formaldehyde, adopts this felt equipment of opener, mixer, carding machine, lapping machine, high temperature oven, ironing roller and cooler set gradually from front to back, it is characterized in that comprising the following steps:
(1) select the thin dawn long-staple cotton of regeneration and 110 DEG C of low-melting fibers as raw material, configure photocatalyst dilute solution simultaneously; Between high temperature oven and ironing roller, increase a low-temperature bake oven, high-pressure spray gun is housed to spray photocatalyst dilute solution at carding machine rear; A uviol lamp is respectively filled at the top of lapping machine, high temperature oven, low-temperature bake oven, ironing roller and cooler;
(2) thin for regeneration dawn long-staple cotton and 110 DEG C of low-melting fibers are put into opener shredding, after mixer mixing, enter carding machine combing and export web; Open high-pressure spray gun, enter in the process of lapping machine at carding machine output web and spray photocatalyst dilute solution at web upper surface continuous uniform; Load has the web of photocatalyst dilute solution to enter lapping machine, high temperature oven, low-temperature bake oven, ironing roller and cooler successively, and uviol lamp is opened to irradiate nano titanium oxide all the time;
(3) the cotton felt of sizing exported from cooler cuts off shaping more on request.
2. photocatalyst removes the preparation method of the cotton felt of formaldehyde according to claim 1, it is characterized in that: in step (1), the collocation method of photocatalyst dilute solution is: first in containing the ilmenite concentrate of titanium dioxide, add the agent of molten ore deposit, adds nanosized seeds and obtain medium molecule and reach nano level titanium dioxide after fired, acidolysis; Gather the Rabdosia rubescens of pure natural or the honeysuckle plant of nature growth again, after rinsing, sterilization, extract its active factors, obtained pH value is that neutral plant osmosis is refined liquid; Finally obtain photocatalyst dilute solution by the nano level titanium dioxide proportional arrangement adding 10 grams in every 1000 milliliters of liquid of refining.
3. photocatalyst, except the preparation method of the cotton felt of formaldehyde, is characterized in that according to claim 2:
In described photocatalyst dilute solution, add the food grade emulsifier of 5 milliliters, after fully stirring, namely obtain stable photocatalyst dilute solution.
4. photocatalyst is except the preparation method of the cotton felt of formaldehyde according to claim 1, and it is characterized in that: in step (1), the weight ratio regenerating thin dawn long-staple cotton and 110 DEG C of low-melting fibers is 3:1.
5. photocatalyst is except the preparation method of the cotton felt of formaldehyde according to claim 1, and it is characterized in that: in step (1), uviol lamp is the ultraviolet (UV) lamp of 365nm.
6. photocatalyst is except the preparation method of the cotton felt of formaldehyde according to claim 1, and it is characterized in that: in step (2), the spray flux of high-pressure spray gun is 40 ml/kg webs.
7. photocatalyst is except the preparation method of the cotton felt of formaldehyde according to claim 1, and it is characterized in that: in step (2), the temperature of high temperature oven remains on 220 DEG C, and the temperature of low-temperature bake oven remains on 100 DEG C.
8. photocatalyst, except the preparation method of the cotton felt of formaldehyde, is characterized in that: in step (2) according to claim 1, and web exports until cooling and shaping terminates from lapping machine, and whole process needs 6-8 minute.
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| CN201510741021.3A CN105420919B (en) | 2015-11-05 | 2015-11-05 | A kind of photocatalyst removes the preparation method of formaldehyde blanket |
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| CN201510741021.3A CN105420919B (en) | 2015-11-05 | 2015-11-05 | A kind of photocatalyst removes the preparation method of formaldehyde blanket |
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| CN105420919B CN105420919B (en) | 2017-12-19 |
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Cited By (7)
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| CN106120148A (en) * | 2016-08-23 | 2016-11-16 | 湖北崇高科工有限公司 | The preparation method that a kind of thermoforming heat-insulating and sound-absorbing is cotton |
| CN106120316A (en) * | 2016-07-19 | 2016-11-16 | 雷春生 | The preparation method of one Plant Extracts modification uvioresistant gel fabric finishing agent |
| CN107175088A (en) * | 2017-07-26 | 2017-09-19 | 湖北菲利华石英玻璃股份有限公司 | A kind of preparation method of the quartzy blanket of photocatalyst catalysis |
| CN107185399A (en) * | 2017-05-24 | 2017-09-22 | 黄丽英 | Except formaldehyde articles for use |
| CN109797489A (en) * | 2019-01-31 | 2019-05-24 | 无锡吉兴汽车声学部件科技有限公司 | A kind of noise elimination felt and its application |
| CN110523271A (en) * | 2019-09-09 | 2019-12-03 | 厦门当盛新材料有限公司 | Building interior trim material and preparation method thereof |
| CN110820166A (en) * | 2019-11-12 | 2020-02-21 | 广州中樱汽车零部件有限公司 | Environment-friendly recycled material low-VOC (volatile organic compound) constant-density cotton for automobiles and preparation method thereof |
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| CN107175088A (en) * | 2017-07-26 | 2017-09-19 | 湖北菲利华石英玻璃股份有限公司 | A kind of preparation method of the quartzy blanket of photocatalyst catalysis |
| CN109797489A (en) * | 2019-01-31 | 2019-05-24 | 无锡吉兴汽车声学部件科技有限公司 | A kind of noise elimination felt and its application |
| CN109797489B (en) * | 2019-01-31 | 2022-06-03 | 无锡吉兴汽车声学部件科技有限公司 | Silencing felt and application thereof |
| CN110523271A (en) * | 2019-09-09 | 2019-12-03 | 厦门当盛新材料有限公司 | Building interior trim material and preparation method thereof |
| CN110523271B (en) * | 2019-09-09 | 2022-04-12 | 厦门当盛新材料有限公司 | Building interior material and preparation method thereof |
| CN110820166A (en) * | 2019-11-12 | 2020-02-21 | 广州中樱汽车零部件有限公司 | Environment-friendly recycled material low-VOC (volatile organic compound) constant-density cotton for automobiles and preparation method thereof |
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