CN200987970Y - Active carbon sandwich no-woven cloth - Google Patents
Active carbon sandwich no-woven cloth Download PDFInfo
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- CN200987970Y CN200987970Y CN 200620108142 CN200620108142U CN200987970Y CN 200987970 Y CN200987970 Y CN 200987970Y CN 200620108142 CN200620108142 CN 200620108142 CN 200620108142 U CN200620108142 U CN 200620108142U CN 200987970 Y CN200987970 Y CN 200987970Y
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- nonwoven
- active carbon
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- activated carbon
- woven fabric
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Abstract
The utility model discloses an activated carbon sandwich non-woven fabric filter material, which comprises an upper non-woven fabric, a middle non-woven fabric, a lower non-woven fabric, and the activated carbon arranged between the middle non-woven fabric networks. The activated carbon particles in the product are fixed between the upper non-woven fabric and the lower non-woven fabric by the middle non-woven fabric networks, the activated carbon does not directly contact with the adhesive or almost not contact with the adhesive, which can guarantee the best performances of the activated carbon and the composite materials, the utility model has the advantages of simple manufacturing process, high efficiency, low production cost, energy saving and environmental protection.
Description
Technical field
The utility model belongs to technical field of composite materials, relates in particular to active carbon powder sandwich nonwoven cloth filter material.
Background technology
Active carbon is a kind of by carbonaceous materials such as plant or coals, through charing and activation and make have the pore structure of enriching and huge specific area, a material with carbon element that characterization of adsorption (having physics and chemisorbed characteristic concurrently) is good, nonpoisonous and tasteless, chemical property is stable.Because it can effectively remove harmful substance such as benzene in air, ammonia, formaldehyde and smelly, peculiar smell and effective antibacterial action, and be widely used in field such as air cleaning.With its make to be used for air clearing product also a lot, as NACF, active carbon nonwoven fabric, active carbon foam, activated carbon paper, active carbon cloth etc.The NACF price is high, popularize and have any problem, and other active carbon composite air filtering products is all because of adopting a large amount of adhesive that Properties of Activated Carbon is reduced.At present, active carbon foam, activated carbon paper all are by adhesive activated carbon powder to be adhered to foam and paper wood, although and active carbon nonwoven fabric and active carbon cloth have plenty of sandwich-like, also be to adopt directly with the adhesive bonds process of active carbon.As disclosed Chinese patent: 03229258.9 bamboo carbon cloth, " coat binding agent at upper and lower aspect cloth, the bamboo charcoal powder is dispersed in wherein, and two aspect cloth are compound, in the middle of bamboo charcoal is bonded in, becomes bamboo carbon cloth." advantage of spinning cloth is arranged is to prevent charcoal for such active carbon nonwoven fabric or active carbon, but the loss of Properties of Activated Carbon is remained tangible.And for example disclosed Chinese patent: 200510049884.0 active carbon nonwoven fabrics and manufacturing process thereof, " active carbon nonwoven fabric; comprise nonwoven layer; concrete technical measures also comprise: nonwoven layer by in the layer to aspect also evenly absorption melt and have the active carbon layer that constitutes by the floury structure particle, active carbon layer infiltrates part in the nonwoven layer matrix and constitutes active carbon and merge and tie." this nonwoven is owing to be that active carbon is melted knot on the nonwoven matrix, so still can lose the performance of active carbon inevitably, thus the clean-up effect of material reduced.
Summary of the invention
The purpose of this utility model is that a kind of a kind of active carbon sandwich nonwoven cloth filter material that activated carbon surface amassed and reduced its absorption property that can not reduce is provided at prior art.
Characteristics of the present utility model are: one, activated carbon grain is fixed between the upper and lower two-layer nonwoven by intermediate layer nonwoven network, its active carbon does not directly contact with adhesive or contacts with adhesive hardly, can guarantee that active carbon and composite property thereof obtain performance to greatest extent; Two, technology is simple, the efficient height, and production cost is low, energy-conserving and environment-protective.
The technical solution of the utility model is: described active carbon sandwich nonwoven cloth filter material, the intermediate layer nonwoven and the active carbon that comprise upper and lower two-layer nonwoven and be placed in one.The intermediate layer nonwoven is the cubic network structure, plays a part to disperse and fixing active carbon and get in touch with upper and lower two-layer nonwoven.Active carbon places between the network of intermediate layer nonwoven, upper and lower two-layer nonwoven by hot melt adhesive film/or PUR net/or low melting point nonwoven and intermediate layer nonwoven bonding be combined into active carbon sandwich nonwoven cloth filter material.And the active carbon content of described active carbon sandwich nonwoven cloth filter material is 10～55%, and its thickness is 0.2-5mm.
Manufacturing step of the present utility model comprises: (1) lower floor nonwoven unreels, the ground floor hot melt adhesive film/or the PUR net/or the low melting point nonwoven unreels, the netted nonwoven in intermediate layer unreels respectively, (2) apply activated carbon grain, (3) second layer hot melt adhesive film/or PUR net/or the low melting point nonwoven unreels, the upper strata does not have cloth to unreel (4) ultrasonic wave respectively compound and/or hot pressing is compound, (5) rolling finished product.More particularly, be respectively lower floor's nonwoven is unreeled, ground floor hot melt adhesive film/or PUR net/or the low melting point nonwoven unreel with the netted nonwoven in intermediate layer and unreel, and stack in the following order: described ground floor hot melt adhesive film/or PUR net/or the low melting point nonwoven unreel and be layered on the described lower floor nonwoven, the netted nonwoven in described intermediate layer unreel be layered on described ground floor hot melt adhesive film/or PUR net/or the low melting point nonwoven on.And then activated carbon grain is applied between the network of the netted nonwoven in described intermediate layer by grain scattering machine; afterwards with described second layer hot melt adhesive film/or PUR net/or the low melting point nonwoven unreel the shop thereon; and then more described upper strata nonwoven is unreeled be layered on described second layer hot melt adhesive film/or PUR net/or the low melting point nonwoven on, carry out compound rolling finished product by ultrasonic wave compounding machine and/or hot pressing compounding machine more at last.
The another kind of fabrication scheme of optimizing of the present utility model is: the netted nonwoven of lower floor described in the utility model nonwoven and described intermediate layer can compoundly in advance become a kind of prefabricated compound nonwoven cloth, promptly not compound on the manufacturing process neutralizing device of described active carbon sandwich nonwoven cloth filter material, also not necessarily require with hot melt adhesive film/or PUR net/or the low melting point nonwoven to make binding material compound, can adopt common non-woven fabric compounded method and technology compound.The manufacturing process and the equipment of described active carbon sandwich nonwoven cloth filter material are simplified more.With prefabricated compound nonwoven cloth is one of raw material, the another kind of manufacturing step of optimizing of the present invention comprises: (1) prefabricated compound nonwoven cloth (netted nonwoven faces up) unreels, (2) apply activated carbon grain, (3) hot melt adhesive film/or PUR net/or the low melting point nonwoven unreels, the upper strata does not have cloth to unreel (4) ultrasonic wave compound and/or hot pressing is compound, (5) rolling finished product.
Adopt the compound upper and lower layer nonwoven of ultrasonic wave directly to bond, have the anchoring effect, upper and lower layer nonwoven adhesion strength height with dot matrix.And adopt the density height that bonds between the hot pressing compound nonwoven cloth, active carbon difficult drop-off when cutting and making product.If adopt earlier ultrasonic wave compound and then to carry out hot pressing compound, then both advantages have both.
Adopt hot melt adhesive film, or the PUR net, or low melting point nonwoven and without liquid adhesive, can avoid reducing its effective surface area because of the charcoal absorption adhesive, compound tense also can be reduced because of transpiring moisture institute energy requirement simultaneously.Described hot melt adhesive film is meant membranaceous low melting point PUR, and described PUR net is meant netted low melting point PUR.Described hot melt adhesive film and described PUR net and low melting point nonwoven, its fusing point is not higher than 150 ℃, and preferred fusing point is not higher than 120 ℃.It mainly plays a part upper strata and middle level nonwoven bonding and middle level and lower floor's nonwoven bonding or the upper strata is direct and lower floor carries out point bonding.
The netted nonwoven in described intermediate layer should have random cubic network structure.The netted nonwoven in described intermediate layer should have certain shape-retaining ability, so that can keep its cubic network structure preferably, helps the filling of active carbon powder.The netted nonwoven in described intermediate layer is used to disperse and the fixedly effect of activated carbon grain and contact the upper and lower nonwoven.The thickness of the netted nonwoven in described intermediate layer can be decided according to the actual needs of filling amounts of activated carbon and granularity of activated carbon size, and scope is at 0.15-4.5mm.The network density of the netted nonwoven in described intermediate layer should be decided according to filling the granularity of activated carbon size, but the average pore diameter of described network should be greater than the average diameter of active carbon.
The fusing point of described upper, middle and lower-ranking nonwoven is not less than 200 ℃ at least, preferably is not less than 230 ℃.
Described active carbon comprises single-activity charcoal and mixed active charcoal and composite activated carbon, its granularity 10-120 order, preferred 30-60 order.
The hot pressing compound tense, the surface temperature of hot pressing roller is: 120 ℃-250 ℃, be preferably: 150 ℃-220 ℃.
Description of drawings
Fig. 1 is a product structure schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment.
Embodiment 1
As shown in Figure 1, active carbon sandwich nonwoven cloth filter material comprises upper strata nonwoven 1, the netted nonwoven 2 in intermediate layer, activated carbon grain 3 and lower floor's nonwoven 4.
Active carbon sandwich nonwoven cloth filter material manufacturing step is: respectively lower floor's nonwoven, ground floor hot melt adhesive film, the netted nonwoven in intermediate layer are unreeled by unreeling device; and press successively, in, on the order laying; with grain scattering machine activated carbon grain is spread fertilizer over the fields thereon then; laying second layer hot melt adhesive film and lower floor's nonwoven successively in the above again; then; earlier compound through the ultrasonic wave compounding machine, the reusable heat compounding machine carries out the compound finished product that makes of heat, and with its rolling.
As shown in Figure 1, active carbon sandwich nonwoven cloth filter material comprises upper strata nonwoven 1, the netted nonwoven 2 in intermediate layer, activated carbon grain 3 and lower floor's nonwoven 4.
Active carbon sandwich nonwoven cloth filter material manufacturing step is: prefabricated compound nonwoven cloth (netted nonwoven faces up) is unreeled by unreeling device; with grain scattering machine activated carbon grain is spread fertilizer over the fields thereon then; laying hot melt adhesive film and lower floor's nonwoven successively in the above again; then; the reusable heat compounding machine carries out the compound finished product that makes of heat, and with its rolling.
Claims (2)
1, a kind of active carbon sandwich nonwoven, comprise by upper, middle and lower-ranking nonwoven and the active carbon sandwich nonwoven that places the active carbon between the nonwoven network of intermediate layer to be composited, it is characterized in that described active carbon places between the network of intermediate layer nonwoven, upper and lower two-layer nonwoven by hot melt adhesive film/or PUR net/or low melting point nonwoven and intermediate layer nonwoven bonding be combined into active carbon sandwich nonwoven.
2, a kind of active carbon sandwich nonwoven as claimed in claim 1, it is characterized in that the netted nonwoven in described intermediate layer should have random cubic network structure, the netted nonwoven in described intermediate layer should have certain shape-retaining ability, the thickness of the netted nonwoven in described intermediate layer is at 0.15-4.5mm, and the average pore diameter of the netted nonwoven network in described intermediate layer should be greater than the average diameter of active carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108142 CN200987970Y (en) | 2006-09-23 | 2006-09-23 | Active carbon sandwich no-woven cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108142 CN200987970Y (en) | 2006-09-23 | 2006-09-23 | Active carbon sandwich no-woven cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200987970Y true CN200987970Y (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620108142 Expired - Fee Related CN200987970Y (en) | 2006-09-23 | 2006-09-23 | Active carbon sandwich no-woven cloth |
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| CN (1) | CN200987970Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790815A (en) * | 2012-10-31 | 2014-05-14 | 上海意东无纺布制造有限公司 | Sedan water pump adsorption non-woven cotton |
| CN105984173A (en) * | 2015-02-02 | 2016-10-05 | 朱文美 | Composite pad for air purification and preparation method thereof |
| CN106730452A (en) * | 2016-12-01 | 2017-05-31 | 深圳市美好创亿医疗科技有限公司 | A kind of preparation method of anti-dust haze mask filter core |
| CN110614032A (en) * | 2019-09-26 | 2019-12-27 | 成都易态科技有限公司 | Preparation method of filter material |
| CN111714972A (en) * | 2019-03-20 | 2020-09-29 | 东丽纤维研究所（中国）有限公司 | Air filtering material containing porous particles |
-
2006
- 2006-09-23 CN CN 200620108142 patent/CN200987970Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790815A (en) * | 2012-10-31 | 2014-05-14 | 上海意东无纺布制造有限公司 | Sedan water pump adsorption non-woven cotton |
| CN105984173A (en) * | 2015-02-02 | 2016-10-05 | 朱文美 | Composite pad for air purification and preparation method thereof |
| CN106730452A (en) * | 2016-12-01 | 2017-05-31 | 深圳市美好创亿医疗科技有限公司 | A kind of preparation method of anti-dust haze mask filter core |
| CN111714972A (en) * | 2019-03-20 | 2020-09-29 | 东丽纤维研究所（中国）有限公司 | Air filtering material containing porous particles |
| CN110614032A (en) * | 2019-09-26 | 2019-12-27 | 成都易态科技有限公司 | Preparation method of filter material |
| CN110614032B (en) * | 2019-09-26 | 2022-06-10 | 成都易态科技有限公司 | Preparation method of filter material |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |