CN101422670B - Preparation technique of anti-flaming washable filter material - Google Patents
Preparation technique of anti-flaming washable filter material Download PDFInfo
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- CN101422670B CN101422670B CN2008102309851A CN200810230985A CN101422670B CN 101422670 B CN101422670 B CN 101422670B CN 2008102309851 A CN2008102309851 A CN 2008102309851A CN 200810230985 A CN200810230985 A CN 200810230985A CN 101422670 B CN101422670 B CN 101422670B
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Abstract
The present invention discloses a flame-retardant and washable filter material and a preparation technology thereof. The flame-retardant and washable filter material is the filter material which is prepared by the following steps: a basic material is acupunctured and compounded by a polypropylene staple fiber and a fiber mesh base cloth, then emerged into a flame-retardant solution which is prepared by melamine resin, an acyclic phosphate flame retardant and poly butylene terephthalate diester according to a certain proportion and then compacted by a twin-roll and dried and ironed out after the surface is sprayed with the flame-retardant solution; and the formed fiber crossing points are fixed by gel points with the filter material with the fiber surface being covered by a smooth glue layer. The filter material is flame-retardant and washable.
Description
Technical field:
The present invention relates to the preparation method that a kind of anti-flaming washable filters, relate to the filtering material of systems such as multiple engine air filter and fluid purification specifically.
Background technology:
China is the maximum developing country of world population, since phase late 1970s, along with China's economic development continuously and healthily, the environmental problem that occurs stage by stage in the century-old course of industrialization in the developed country is concentrated in China and is occurred, and the contradiction order benefit of environment and development is outstanding.The resource relative shortage, ecological environment frailty, the environmental carrying capacity deficiency becomes the significant problem in the Chinese development gradually.The Eleventh Five-Year Plan of China is had higher requirement to environmental protection, and aspects such as water, gas, sound, slag all arrive filtering material, filtering material industry market promise well with more applications.Along with the pay attention to day by day of people to atmospheric environment and IAQ, the issuing and implementation of a series of environmental regulations make air filting material take on the role who becomes more and more important in environmental improvement, and have obtained significant progress.Air filting material has occupied the 3rd in six big markets of international filtering material, become fastest-rising part in the international filtering material market.Air environmental pollution is the emphasis of China's environmental pollution control, air filting material is the important technical that atmospheric environment is administered, along with country's perfect day by day to the increasing of environmental protection investment and environmental regulation, the application prospect of air filting material in atmospheric environment is administered will be more wide.
At present, our used fire-retardant filtering material is because water-fast washing not, promptly needs after saturated more to renew when dust containing capacity reaches, and this had both increased the spending of enterprise, again environment had been caused pollution simultaneously.And the anti-flaming washable filter material of my company's development, removing water after dust containing capacity reaches capacity rinses well and can reuse, this greatly reduces the cost of enterprise, reduced simultaneously pollution again to environment, and this product has anti-flammability again, so can improve the fireproof security greatly.
Summary of the invention:
The technical issues that need to address of the present invention are the preparation technologies that disclose a kind of anti-flaming washable filter material, to satisfy the problem of contemporary society to the resource energy-conserving and environment-protective, the said anti-flaming washable filter material of the present invention is to be combined into basic material by the acupuncture of polypropylene chopped fiber peacekeeping fiber mesh base cloth, and then be soaked in melmac, the cyclic phosphate fire retardant, in the fire retardant glue solution that the own diester of poly terephthalic acid is made into by a certain percentage, yet roll through two roll-ins again, oven dry, at surface sprinkling fire retardant glue solution, oven dry, plate, promptly form the filtering material that fiber intersection points is fixing by glue point and fiber surface is covered by smooth glue-line with this method preparation, it is characterized in that: not only fire-retardant but also water-fast the washing of filtering material of this method preparation, be combined into one by polypropylene fiber and the acupuncture of fiber mesh base cloth, be soaked in again in the fire retardant glue solution of proportioning by a certain percentage, spray the fire retardant glue solution of proportioning by a certain percentage again, oven dry flattens the filtering material that fiber intersection points is fixing by glue point and fiber surface is covered by smooth glue-line that forms with this method preparation, comprise the steps: the preparation of (1) needle-punched composite: it is to be 3-18dtex by fibre fineness, length is that polypropylene fiber and the specification of 51-80mm is that 2 * 2-10 * 10mm fiber mesh base cloth acupuncture is composited, in needle-punched composite, the weight ratio of polypropylene fiber and grid base cloth is 90: 10, by shredding, combing, lapping, acupuncture becomes lower floor's base material, the centre repaves the grid base cloth, shop, last upper strata polypropylene fiber net, three's acupuncture is composited, needing machine speed is 1200-1800 time/minute, bestock is 2600-5000 piece/meter, make polypropylene fiber and the grid base cloth is well-proportioned is connected as a single entity, thickness is 2-6mm; (2) preparation of fire retardant glue: with melmac: the cyclic phosphate fire retardant: the own diester of poly terephthalic acid evenly mixes weight ratio in the ratio of 38-58: 36-58: 4-6; (3) needle-punched composite is soaked in the mixed solution of fire retardant glue and water, with 1-10 rice/minute speed operation, roll through two roll-ins, moisture content is removed, under 120-240 ℃ temperature, dry; The material two-side that above step (3) is made sprays in the mixed solution of fire retardant glue and water uniformly, dries under 100 ℃-200 ℃ temperature, and the press that enters 130 ℃-180 ℃ flattens the rolling of cutting edge then.The initial resistance of this filtering material: 100-200pa, dust containing capacity: 70-180g/m2, face proportion: 200-600g/m2, thickness: 2-6mm, rated wind speed: 0.3-2m/s, counting efficiency: 70-99.9%, the water-fast number of times of washing is washed its fire-retardant E level that still can be effective of back more than 15 times.
Because the present invention is not only fire-retardant but also water-fast to wash, so can be widely used in relevant use field both at home and abroad, not only reduced use cost, and reduced the discharging of pollutant, thereby reached the effect of protecting environment and energy-saving and emission-reduction.
The specific embodiment:
Embodiment 1
(1) preparation of needle-punched composite:
It is to be 3dtex by fibre fineness, length is that polypropylene fibre or the terylene short fiber peacekeeping specification of 51mm is that the acupuncture of 2 * 2mm fiber mesh base cloth is composited, wherein, polypropylene fibre or polyster fibre: the weight ratio of grid base cloth is 90: 10, by shredding, combing, lapping, acupuncture becomes lower floor's base material, the centre repaves the grid base cloth, last upper strata shop polypropylene fibre or polyster fibre net, three's acupuncture is composited, needing machine speed is 1200 times/minute, bestock is 2600 pieces/meter, make polypropylene fibre or polyster fibre and the grid base cloth is well-proportioned is connected as a single entity, thickness is 2mm.
(2) preparation of fire retardant glue:
Melmac or aqueous polyurethane, cyclic phosphate or phosphate flame retardant, the own diester of poly terephthalic acid or sodium dihydrogen phosphate are evenly mixed weight ratio in 38: 58: 4 ratio.
(3) needling material is soaked in the mixture of fire retardant glue and water,, rolls, moisture content is removed, under 240 ℃ temperature, dry through two roll-ins with 1 meter/minute speed operation.
(4) the two-sided uniform sprinkling fire retardant glue of the washable filter material that above step is made and the mixed solution of water, under 100 ℃ temperature, dry, the press that enters 130 ℃ flattens, the rolling of cutting edge then, promptly form with the fiber intersection points of this method preparation and fix and the filtering material of fiber surface, promptly obtain the present invention by smooth glue-line covering by glue point.
Material of the present invention adopts TB/T 3138-2006 " rolling stock fire proofing technical conditions "; GB/T 5454-1997 " textile combustion performance test oxygen index method "; GB/T 8323-1987 " plastics combustibility test method smoke density method "; GB 8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 2.0mm
Wind speed: 0.3m/s
Resistance: 100pa
Dust containing capacity: 70g/m
2
Face proportion: 200g/m
2
Counting efficiency: 70%
Oxygen index (OI): 27.1
Miter angle burning: difficult combustion
Smoke density D4:325
Resistance to water: wash 15 times, its flame retarding efficiency still can reach the E level
Embodiment 2
(1) preparation of needle-punched composite:
It is to be 10dtex by fibre fineness, length is that polypropylene fibre or the terylene short fiber peacekeeping specification of 65mm is that the acupuncture of 6 * 6mm fiber mesh base cloth is composited, the weight ratio of polypropylene fiber and grid base cloth is 90: 10 in needle-punched composite, by shredding, combing, lapping, acupuncture becomes lower floor's base material, the centre repaves the grid base cloth, last upper strata shop polypropylene fibre or polyster fibre net, three's acupuncture is composited, needing machine speed is 1500 times/minute, bestock is 3700 pieces/meter, make polypropylene fibre or well-proportioned being connected as a single entity of terylene short fiber peacekeeping grid base cloth, thickness is 4mm.
(2) preparation of fire retardant glue:
Melmac or aqueous polyurethane, cyclic phosphate or phosphate flame retardant, the own diester of poly terephthalic acid or sodium dihydrogen phosphate are evenly mixed weight ratio in 48: 47: 5 ratio.
(3) needling material is soaked in the mixture of (2) and water,, rolls, moisture content is removed, under 180 ℃ temperature, dry through two roll-ins with 5 meters/minute speed operation.
(4) the two-sided uniform sprinkling (2) of the washable filter material that above step is made and the mixed solution of water, under 150 ℃ temperature, dry, the press that enters 160 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain the present invention by smooth glue-line covering.
Material of the present invention adopts TB/T 3138-2006 " rolling stock fire proofing technical conditions "; GB/T 5454-1997 " textile combustion performance test oxygen index method "; GB/T 8323-1987 " plastics combustibility test method smoke density method "; GB 8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 4.0mm
Wind speed: 1.20m/s
Resistance: 150pa
Dust containing capacity: 130g/m
2
Face proportion: 400g/m
2
Counting efficiency: 90% oxygen index (OI): 27.1
Miter angle burning: difficult combustion
Smoke density D4:325
Resistance to water: wash 15 times, its flame retarding efficiency still can reach the E level.
Embodiment 3
(1) preparation of needle-punched composite:
It is to be 18dtex by fibre fineness, length is that the polypropylene fibre of 80mm or polyster fibre and specification are that the acupuncture of 10 * 10mm fiber mesh base cloth is composited, in needle-punched composite, the weight ratio of polypropylene fiber and grid base cloth is 90: 10, by shredding, combing, lapping, acupuncture becomes lower floor's base material, the centre repaves the grid base cloth, last upper strata shop polypropylene fibre or polyster fibre net, three's acupuncture is composited, needing machine speed is 1800 times/minute, bestock is 5000 pieces/meter, make polypropylene fibre or well-proportioned being connected as a single entity of terylene short fiber peacekeeping grid base cloth, thickness is 6mm.
(2) preparation of fire retardant glue:
Melmac or aqueous polyurethane, cyclic phosphate or phosphate flame retardant, the own diester of poly terephthalic acid or sodium dihydrogen phosphate are evenly mixed weight ratio in 58: 36: 6 ratio.
(3) needling material is soaked in the mixture of fire retardant glue and water,, rolls, moisture content is removed, under 120 ℃ temperature, dry through two roll-ins with 10 meters/minute speed operation.
(4) the two-sided uniform sprinkling fire retardant glue of the washable filter material that above step is made and the mixed solution of water, under 200 ℃ temperature, dry, the press that enters 180 ℃ flattens, the rolling of cutting edge then, and form fiber intersection points by glue point fixing and fiber surface by the filtering material of smooth glue-line covering.
Material of the present invention adopts TB/T 3138-2006 " rolling stock fire proofing technical conditions "; GB/T 5454-1997 " textile combustion performance test oxygen index method "; GB/T 8323-1987 " plastics combustibility test method smoke density method "; GB 8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 6.0mm
Wind speed: 2.0m/s
Resistance: 200pa
Dust containing capacity: 180g/m
2
Face proportion: 600g/m
2
Counting efficiency: 99.9% oxygen index (OI): 27.1
Miter angle burning: difficult combustion
Smoke density D4:325
Resistance to water: wash 15 times, its flame retarding efficiency still can reach the E level.
Claims (2)
1. the preparation method of an anti-flaming washable filter material, it is characterized in that: not only fire-retardant but also water-fast the washing of filtering material of this method preparation, be combined into one by polypropylene fiber and the acupuncture of fiber mesh base cloth, be soaked in again in the fire retardant glue solution of proportioning by a certain percentage, spray the fire retardant glue solution of proportioning by a certain percentage again, oven dry flattens the filtering material that fiber intersection points is fixing by glue point and fiber surface is covered by smooth glue-line that forms with this method preparation, comprise the steps: the preparation of (1) needle-punched composite: it is to be 3-18dtex by fibre fineness, length is that polypropylene fiber and the specification of 51-80mm is that 2 * 2-10 * 10mm fiber mesh base cloth acupuncture is composited, in needle-punched composite, the weight ratio of polypropylene fiber and grid base cloth is 90: 10, by shredding, combing, lapping, acupuncture becomes lower floor's base material, the centre repaves the grid base cloth, shop, last upper strata polypropylene fiber net, three's acupuncture is composited, needing machine speed is 1200-1800 time/minute, bestock is 2600-5000 piece/meter, make polypropylene fiber and the grid base cloth is well-proportioned is connected as a single entity, thickness is 2-6mm; (2) preparation of fire retardant glue: with melmac: the cyclic phosphate fire retardant: the own diester of poly terephthalic acid evenly mixes weight ratio in the ratio of 38-58: 36-58: 4-6; (3) needle-punched composite is soaked in the mixed solution of fire retardant glue and water, with 1-10 rice/minute speed operation, roll through two roll-ins, moisture content is removed, under 120-240 ℃ temperature, dry; The material two-side that above step (3) is made sprays in the mixed solution of fire retardant glue and water uniformly, dries under 100 ℃-200 ℃ temperature, and the press that enters 130 ℃-180 ℃ flattens the rolling of cutting edge then.
2. the preparation method of a kind of anti-flaming washable filter material according to claim 1 is characterized in that, the initial resistance of this filtering material: 100-200pa, dust containing capacity: 70-180g/m
2, face proportion: 200-600g/m
2, thickness: 2-6mm, rated wind speed: 0.3-2m/s, counting efficiency: 70-99.9%, the water-fast number of times of washing wash its fire-retardant E level that still can be effective of back more than 15 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102309851A CN101422670B (en) | 2008-11-12 | 2008-11-12 | Preparation technique of anti-flaming washable filter material |
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|---|---|---|---|
| CN2008102309851A CN101422670B (en) | 2008-11-12 | 2008-11-12 | Preparation technique of anti-flaming washable filter material |
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| Publication Number | Publication Date |
|---|---|
| CN101422670A CN101422670A (en) | 2009-05-06 |
| CN101422670B true CN101422670B (en) | 2011-07-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835068B (en) * | 2014-02-24 | 2016-01-13 | 大庆亚东无纺新材料股份有限公司 | A kind of nonwoven fabric wood-based plate veneer film |
| CN105536350A (en) * | 2016-01-21 | 2016-05-04 | 河南省安克林滤业有限公司 | Preparation process of flame-resistant washable filter material |
| CN111286991A (en) * | 2020-03-19 | 2020-06-16 | 合肥科天水性科技有限责任公司 | Air filter medium and preparation method thereof |
| CN113571814A (en) * | 2021-07-19 | 2021-10-29 | 保定市宏腾科技有限公司 | New energy automobile battery fireproof material and manufacturing method thereof |
| CN114481693A (en) * | 2022-02-12 | 2022-05-13 | 东莞市三威新材料科技有限公司 | Washable flame retardant based on application of filter material |
| CN116920516A (en) * | 2023-08-28 | 2023-10-24 | 广州慧名纤维制品有限公司 | Breathable oil-proof filter element, and preparation method and application thereof |
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