CN1943841A - A filtering material made of non-woven charcoal cloth - Google Patents
A filtering material made of non-woven charcoal cloth Download PDFInfo
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- CN1943841A CN1943841A CN 200610053595 CN200610053595A CN1943841A CN 1943841 A CN1943841 A CN 1943841A CN 200610053595 CN200610053595 CN 200610053595 CN 200610053595 A CN200610053595 A CN 200610053595A CN 1943841 A CN1943841 A CN 1943841A
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Abstract
The invention discloses a carbon folded non-woven filter materials and its manufacturing technology, the filter materials comprising of the upper,middle,low non-woven layers and active carbon placed in the middle of non-woven network, its manufacturing processes are : (1) low non-woven volumes, the first hot melt gum membrane or hot melt gum network or low melting point non-woven volumes the middle layer non-woven network volumes, or compound non-woven fabrics (network non-woven face up) volumes, (2) spreading active carbon (3) the second hot melt gum membrane or hot melt gum network or low melting point non-woven volumes ,upper layer non-woven volumes (4) ultrasonic compounded or hot pressing compounded, (5) rolling. The active carbon grain are fixed between upper-low non-woven through the middle layer non-woven network, its active carbon is not directly contact or hardly contact with the adhesive, it guarantees the active carbon and its composite materials perform at the maximal limitation. The manufacturing process is simple, efficient, of low production cost, it also save energy and protect the environment.
Description
Technical field
The invention belongs to technical field of composite materials, relate in particular to filtering material made of non-woven charcoal cloth and manufacturing process thereof.
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
One of purpose of the present invention is that a kind of filtering material made of non-woven charcoal cloth that activated carbon surface amassed and reduced its absorption property that can not reduce is provided at prior art; Two of purpose provides the manufacturing process of filtering material made of non-woven charcoal cloth of the present invention.
Characteristics of the present invention 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, manufacturing process is simple, the efficient height, and production cost is low, energy-conserving and environment-protective.
Technical scheme of the present invention is: described filtering material made of non-woven charcoal cloth, 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 filtering material made of non-woven charcoal cloth.And the active carbon content of described filtering material made of non-woven charcoal cloth is 10～55%, and its thickness is 0.2-5mm.
Manufacturing process of the present invention 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.
Another kind of prioritization scheme of the present invention is: the netted nonwoven of lower floor of the present invention 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 filtering material made of non-woven charcoal cloth, 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 of described filtering material made of non-woven charcoal cloth and equipment are simplified more.Except that prefabricated compound nonwoven cloth technology, the another kind of manufacturing process 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 product structure of the present invention and schematic diagram of fabrication technology thereof.
Fig. 2 is product structure of the present invention and another kind of schematic diagram of fabrication technology thereof.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
As shown in Figure 1, filtering material made of non-woven charcoal cloth 10 comprises upper strata nonwoven 10a, the netted nonwoven 10b in intermediate layer, activated carbon grain 10c and the nonwoven 10d of lower floor.
The filtering material made of non-woven charcoal cloth manufacturing process is: as shown in Figure 1; respectively lower floor's nonwoven 1, ground floor hot melt adhesive film 2, the netted nonwoven 3 in intermediate layer are unreeled by unreeling device; and press successively, in, on the order laying; with grain scattering machine 5 activated carbon grain 4 is spread fertilizer over the fields thereon then; laying second layer hot melt adhesive film 6 and lower floor's nonwoven 7 successively in the above again; then; earlier compound through ultrasonic wave compounding machine 8; it is compound that reusable heat compounding machine 9 carries out heat; the hot-rolling surface temperature control makes finished product 10 at 150 ℃-180 ℃, and with its rolling.
Embodiment 2
As shown in Figure 1, filtering material made of non-woven charcoal cloth 10 comprises upper strata nonwoven 10a, the netted nonwoven 10b in intermediate layer, activated carbon grain 10c and the nonwoven 10d of lower floor.
The filtering material made of non-woven charcoal cloth manufacturing process as shown in Figure 1; respectively lower floor's nonwoven 1, ground floor hot melt adhesive film 2, the netted nonwoven 3 in intermediate layer are unreeled by unreeling device; and press successively, in, on the order laying; with grain scattering machine 5 activated carbon grain 4 is spread fertilizer over the fields thereon then; laying second layer hot melt adhesive film 6 and lower floor's nonwoven 7 successively in the above again; then, through the ultrasonic wave compounding machine 8 compound finished products 10 that make, and with its rolling.
Embodiment 3
As shown in Figure 1, filtering material made of non-woven charcoal cloth 10 comprises upper strata nonwoven 10a, the sharp nonwoven 10d of lower floor of the netted nonwoven 10b in intermediate layer, activated carbon grain 10c.
The filtering material made of non-woven charcoal cloth manufacturing process as shown in Figure 1; respectively lower floor's nonwoven 1, ground floor hot melt adhesive film 2, the netted nonwoven 3 in intermediate layer are unreeled by unreeling device; and press successively, in, on the order laying; with grain scattering machine 5 activated carbon grain 4 is spread fertilizer over the fields thereon then; laying second layer hot melt adhesive film 6 and lower floor's nonwoven 7 successively in the above again, then, it is compound that reusable heat compounding machine 9 carries out heat; the hot-rolling surface temperature control makes finished product 10 at 160 ℃-180 ℃, and with its rolling.
As shown in Figure 2, filtering material made of non-woven charcoal cloth 10 comprises upper strata nonwoven 10a, the netted nonwoven 10b in intermediate layer, activated carbon grain 10c and the nonwoven 10d of lower floor.
The filtering material made of non-woven charcoal cloth manufacturing process as shown in Figure 2; prefabricated compound nonwoven cloth 11 (netted nonwoven faces up) is unreeled by unreeling device; with grain scattering machine 5 activated carbon grain 4 is spread fertilizer over the fields thereon then; laying hot melt adhesive film 6 and lower floor's nonwoven 7 successively in the above again; then, earlier compound through ultrasonic wave compounding machine 8, it is compound that reusable heat compounding machine 9 carries out heat; the hot-rolling surface temperature control makes finished product 10 at 150 ℃-180 ℃, and with its rolling.
As shown in Figure 2, filtering material made of non-woven charcoal cloth 10 comprises upper strata nonwoven 10a, the sharp nonwoven 10d of lower floor of the netted nonwoven 10b in intermediate layer, activated carbon grain 10c.
The filtering material made of non-woven charcoal cloth manufacturing process as shown in Figure 2; prefabricated compound nonwoven cloth 11 (netted nonwoven faces up) is unreeled by unreeling device; with grain scattering machine 5 activated carbon grain 4 is spread fertilizer over the fields thereon then; laying hot melt adhesive film 6 sharp lower floor nonwoven 7 successively in the above again; then; it is compound that reusable heat compounding machine 9 carries out heat, and the hot-rolling surface temperature control makes finished product 10 at 150 ℃-180 ℃, and with its rolling.
Claims (6)
1, filtering material made of non-woven charcoal cloth and manufacturing process thereof comprise by upper, middle and lower-ranking nonwoven and the folder charcoal nonwoven and the manufacturing process thereof that place 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 filtering material made of non-woven charcoal cloth.And the active carbon content of described filtering material made of non-woven charcoal cloth is 10～55%, and its thickness is 0.2-5mm.The manufacturing process flow of described filtering material made of non-woven charcoal cloth is: (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, (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 compound and/or hot pressing is compound, (5) rolling finished product.Its feature is that also the netted nonwoven of described lower floor nonwoven and described intermediate layer can compoundly in advance become a kind of prefabricated compound nonwoven cloth, be the described filtering material made of non-woven charcoal cloth of one of raw material preparation with prefabricated compound nonwoven cloth again, its manufacturing process flow is: (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.
2, filtering material made of non-woven charcoal cloth as claimed in claim 1 and manufacturing process thereof 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 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.
3, filtering material made of non-woven charcoal cloth as claimed in claim 1 and manufacturing process thereof is characterized in that described active carbon comprises single-activity charcoal and mixed active charcoal or composite activated carbon, its granularity 10-120 order, preferred 30-60 order.
4, filtering material made of non-woven charcoal cloth as claimed in claim 1 and manufacturing process thereof is characterized in that the fusing point of described upper, middle and lower-ranking nonwoven is not less than 200 ℃ at least, preferably are not less than 230 ℃.
5, filtering material made of non-woven charcoal cloth as claimed in claim 1 and manufacturing process thereof is characterized in that the hot pressing compound tense, and the surface temperature of hot pressing roller is: 120 ℃-250 ℃, be preferably: 150 ℃-220 ℃.
6, filtering material made of non-woven charcoal cloth as claimed in claim 1 and manufacturing process thereof is characterized in that 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 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100535952A CN100475308C (en) | 2006-09-23 | 2006-09-23 | A filtering material made of non-woven charcoal cloth |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100535952A CN100475308C (en) | 2006-09-23 | 2006-09-23 | A filtering material made of non-woven charcoal cloth |
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| CN1943841A true CN1943841A (en) | 2007-04-11 |
| CN100475308C CN100475308C (en) | 2009-04-08 |
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| CNB2006100535952A Expired - Fee Related CN100475308C (en) | 2006-09-23 | 2006-09-23 | A filtering material made of non-woven charcoal cloth |
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| CN101406780B (en) * | 2007-10-08 | 2012-09-05 | 东丽纤维研究所（中国）有限公司 | Filter material and use |
| CN102848700A (en) * | 2012-08-10 | 2013-01-02 | 浙江华生经编新材料有限公司 | Gluing method of five-layer flexible composite material |
| CN103623642A (en) * | 2013-11-22 | 2014-03-12 | 佛山市顺德区阿波罗环保器材有限公司 | Deodorizing and filtering material and fabrication method thereof |
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- 2006-09-23 CN CNB2006100535952A patent/CN100475308C/en not_active Expired - Fee Related
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| CN100475308C (en) | 2009-04-08 |
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