CN106139745A - A kind of automobile air-conditioning filter filtering material and production method thereof - Google Patents
A kind of automobile air-conditioning filter filtering material and production method thereof Download PDFInfo
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- CN106139745A CN106139745A CN201510196824.5A CN201510196824A CN106139745A CN 106139745 A CN106139745 A CN 106139745A CN 201510196824 A CN201510196824 A CN 201510196824A CN 106139745 A CN106139745 A CN 106139745A
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Abstract
The open a kind of automobile air-conditioning filter filtering material of the present invention and production method thereof, this filtering material is the filter material at least containing core-skin fibre with crimped fibre, and the face thickness response rate of this filtering material is more than 70%.The automobile air-conditioning filter filtering material of the present invention has the advantages that dust containing capacity is high, bulkiness is good, use cycle length.
Description
Technical field
The present invention relates to a kind of automobile air-conditioning filter filtering material and production method thereof.
Background technology
In today of rapid economic development, the data of World Health Organization (WHO) (WHO) show, in 10 cities that air environmental pollution is worst, just there is the region that 7 atmospheric pollution are serious in China.The development of the filtering material that thus be accordingly used in automobile air-conditioning filter has also arrived at the busy season.Automobile filter filtering material in the market also exists the defect that bulkiness is poor, service life is shorter, dust containing capacity is low.
A kind of fire-retardant easy decontamination filtering material and the preparation method of non-woven filter material is disclosed in China's Publication No. CN103785225A, carry out polyester staple fiber, the flame retardant polyester staple fibre of three-dimensional hollow and aramid fiber short fibre mixing, shredding, combing, lapping, prepare finished product, although the filter material intensity after its preparation method is simple, spraying arranges increases, but the bulkiness of filtering material declines, and declines to a great extent the service life of filter material.
Summary of the invention
It is an object of the invention to provide the automobile air-conditioning filter filtering material that a kind of dust containing capacity is high, bulkiness is good.
Another object of the present invention is to provide the production method that a kind of production technology is simple, use the automobile air-conditioning filter filtering material of cycle length.
The technical solution of the present invention is as follows: filtering material of the present invention is the filter material at least containing core-skin fibre with crimped fibre, and the face thickness response rate of this filtering material is more than 70%, and the computing formula of the face thickness response rate of filtering material is as follows:
Face thickness response rate=(thickness/original depth after pressurized) × 100%.
The invention has the beneficial effects as follows: the automobile air-conditioning filter filtering material of the present invention solves the problem that dust containing capacity is few, service life is short of conventional filtering material, due to the crimped fibre containing certain content in the filtering material of the present invention so that the automobile air-conditioning filter filtering material of the present invention has the advantages that dust containing capacity is high, bulkiness is good, use cycle length.
Detailed description of the invention
The automobile air-conditioning filter filtering material of the present invention is the filter material at least containing core-skin fibre with crimped fibre, and the face thickness response rate of this filtering material is more than 70%, and the computing formula of the face thickness response rate of filtering material is as follows:
Face thickness response rate=(thickness/original depth after pressurized) × 100%.
Here core-skin fibre can play Chemical Felter, strengthens the effect of the firm softness of filtering material, and crimped fibre can play increase filter material bulkiness, improves the appearance dirt space of filtering material.The face thickness response rate of filtering material of the present invention, more than 70%, owing to containing crimped fibre in filtering material, has preferable space bulkiness, therefore has bigger face thickness response rate.If the face thickness response rate of filtering material is less than 70%, the bulkiness of filtering material is poor, and material easily collapses, and causes dust to accommodate space and diminishes, and dust containing capacity declines.In view of bulkiness and the effect of dust containing capacity, the face thickness response rate preferably more than 80% of filtering material, more preferably more than 90%.
The filtering material of the present invention is the filter material of the crimped fibre of the core-skin fibre containing 45～65 weight % and 35～55 weight %.If the content of core-skin fibre is too low, the bonding point between fiber will tail off, and the stiffness of filtering material can be less than below 100mg, and the thermal stretching rate of filtering material is relatively big, and the air-conditioning filter cleaner folding shape made is difficult to keep；If the too high levels of core-skin fibre, the bonding point between fiber can be caused too much, although firm softness can improve, but bulkiness can be deteriorated, and the air-conditioning filter cleaner appearance dirt space made is few, and such life-span will shorten.If the content of crimped fibre of the present invention is too low, the crimped fibre content playing lofting effect is less, and the bulkiness in space can reduce, and the space holding dirt is reduced, and the life-span can shorten；If the too high levels of crimped fibre, although bulkiness also can improve, but owing to playing the reduction of the core-skin fibre content of cementation, the firm softness of material declines, and thermal stretching rate becomes big, and the air-conditioning filter cleaner prepared is easily deformed, lifetime.Shape in view of the fixing of bonding, the high firm softness of filtering material and paper folding is easier to keep, the content of core-skin fibre preferably 50～60 weight %；Make non-woven fabrics have higher spatial volume, preferable bulkiness under certain grammes per square metre in view of bigger face thickness response rate, thus there is the more dusty space of receiving, the content of crimped fibre preferably 40～50 weight %.
Heavy denier core-skin fibre containing 25～35 weight % and the fine denier core-skin fibre of 20～30 weight % in above-mentioned core-skin fibre.The core-skin fibre structure that thickness fiber number is mixed is possible not only to increase the spatial intersecting point of bonding, but also can improve bonding strength.If the content of heavy denier core-skin fibre here is too low, then the content of fine denier core-skin fibre will certainly increase, then the bulkiness of the filtering material prepared can be deteriorated, collection dust quantity can decline, and the firm softness also resulting in filtering material declines.
In view of making the filtering material of the present invention have corresponding anti-microbial property, stop the pathogenic bacteria in outside air into the car, and plum rain season avoids the mouldy raw bacterium of automobile air-conditioning filter self, possibly together with the anti-bacterial fibre of 10～30 weight % in the filtering material of the present invention.If the too high levels of anti-bacterial fibre, the cost of filtering material can improve accordingly；If the content of anti-bacterial fibre is too low, filtering material does not just reach corresponding antibacterial ability.
The fineness degree of the core-skin fibre of the automobile air-conditioning filter filtering material of the present invention also must control in certain scope, the fiber number of heavy denier core-skin fibre preferably 10～20dtex, the fiber number of fine denier core-skin fibre preferably 1～10dtex.If the fiber number of core-skin fibre is too thick, the radical of fiber will tail off accordingly, and the bonding point between fiber tails off, thus causes thermal stretching rate bigger；If the fiber number of core-skin fibre is too thin, the firm softness of material will decline.
In core-skin fibre of the present invention, skin composition is low melting point copolyester, and core composition is conventional polyester.Sheath component, between 180～220 DEG C, is melted away during heating by the fusing point of copolyester with low melting point so that core-skin fibre is together with each other, additionally, although cortex is the copolyester composition of low melting point, but its fusing point is also more than 180 DEG C, the most still has preferable thermostability.
Crimped fibre of the present invention is 3-D crimped fiber, this fiber is by specially designed spinneret, make melt through out-of-date turbulization, during extrusion spinneret, internal two lateral stresses of melt are different, when tensile stress relaxes, potential curling just displays, the three-dimensional crimp structure that this method is formed produces due to fibrous inner structure, so curling is the most natural and lasting, fibre property also will not suffer damage, crimped fibre crimp percent >=50% of the present invention, rebound degree is high, deformability is replied strong after can bearing load, the filtering material bulkiness made is good, if the crimp percent of crimped fibre is the lowest, the holding of filtering material bulkiness is poor, dust containing capacity can decline.Additionally the fiber number of the present invention is 10～20dtex, if the fiber number of crimped fibre is too low, fiber can be too thin, and deflection is low, and bulkiness keeps poor；If the fiber number of crimped fibre is high, in unit mass, crimped fibre radical is less, plays the fiber of support less, and it is the most poor that bulkiness keeps equally.
Measuring according to JIS L1096 method, the firm softness of filtering material of the present invention is on 100mg.Firm softness is a kind of sign of the stiffening degree of non-woven fabrics, just the value of softness is the highest, show that material is the most stiffening, material folding shape after paper folding keeps the best, like this, the automobile air-conditioning filter made will not because of the shock of dust storm deformed damaged, also will not collapse formation groove, structure crushing also can ratio relatively low, the service life of cleaner is longer.
The thermal stretching rate of filtering material of the present invention is less than 1%.This shows that the filtering material of the present invention has preferable heat stability, so can ensure that under high temperature extreme condition, and air-conditioning filter cleaner will not damaged deformation easily.
Filtering material of the present invention, according to ISO11155-1 method of testing, the dust containing capacity of ISOA2 dust reaches 300g/m2Above.This shows that the filtering material of the present invention has higher dust containing capacity, so makes under the conditions of the vile weather and road conditions of northern many sand and dust, and cleaner still is able to have the longer life-span.
The production method of automobile air-conditioning filter filtering material of the present invention is as follows: to the core-skin fibre of major general 40～70 weight %, the crimped fibre of 30～60 weight % feeds intake, fiber web layer is formed after opener, comb and parallel cotton fibers prior to spinning, lapping, then it is thermally bonded by the hot bellows of length 4～8 meters, temperature 200～220 DEG C with the speed of 10～20 ms/min, carry out thickness adjusted by roll again, finally prepare finished product.Fiber web layer heats in hot bellows, the low melting point cortex making fleece be heated to after uniform temperature in core-skin fibre in the range of the regular hour softens melted, and cortex melt-flow also condenses upon fiber intersection points and is bonded together with other fiber not melted such as crimped fibres etc..If bonding temperature is less than 200 DEG C, the cortex of Cortical fiber melts insufficient, and the caking property between fiber is the poorest, and the thermal stretching rate causing filtering material is relatively big, and heat stability is just deteriorated；If bonding temperature is higher than 220 DEG C, although the cortex of Cortical fiber can be melted fully, but the heat energy cost of processing will be correspondingly improved.
With embodiment and comparative example, the invention will be further described below.Wherein, each physical property in embodiment is tested in the following way and tries to achieve.
[face thickness response rate]
First 3 pieces of filter materials are overlapped successively, then use ruler to measure unit are 1m2The original depth m of non-woven fabrics1, then uniformly apply the weight of 5Kg on its surface, continue 10min recession and remove weight, again measure the thickness m after its pressurized2,
The computing formula of face thickness response rate is as follows: face thickness response rate=(thickness/original depth after pressurized) × 100%.
[firm softness]
According to JIS L 1096 standard, test material size: 38mm × 25mm, on equipment, (Ge Lianshi) selects suitable range counterweight, utilizes the size of equipment reference test bar amplitude of fluctuation, shows the firm softness size of correspondence on a display screen.Any 5 places in the filtering non-woven cloth of the present invention sample and measure, and obtain meansigma methods.
[thermal stretching rate]
The condition of automobile engine periphery high temperature under the conditions of simulation is extreme, the oven temperature processing sample is set as 150 DEG C, the long galley proof that size is 300*50mm of sampling, record the precise length (0.1mm precision) of sample, end at sample hangs up the heavy burden of 30g so that have the tension force pulled down, after putting into baking oven heat treated 30min, take off loading, again measure the precise length of lower sample.Length before in conjunction with, calculates the thermal stretching rate of sample.Any 5 places in the filtering non-woven cloth of the present invention sample and measure, and obtain meansigma methods.
[dust containing capacity]
According to ISO11155-1 method of testing, the non-woven fabrics filter material of lamellar is put into 0.1m2On the machine of aperture area, fixing seal is good, under filter material 20m/min runs through wind speed, by dust feeding unit, by dust ISO
A2 Fine Dust is with the quantification dust generating speed of 1g per minute, cover measured surface of filter medium equably, when the pressure loss of filter material is elevated above initial pressure 150Pa, filter material weight is recorded with balance, weight in conjunction with the filter material recorded before sending out dirt, such that it is able to calculate the dust containing capacity of this filter material, its computing formula is as follows:
Dust containing capacity (g/m2The weight of filter material before filter material weight an after)=(dirt-dirt) × 100%.
Embodiment 1
By the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 60 weight % is 20dtex, crimp percent be 60% crimped fibre feed intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 180 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 4 meters of hot bellows that temperature is 200 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 95% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 2
By the heavy denier core-skin fibre that fiber number is 15dtex of 30 weight %, the fiber number of 25 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 45 weight % is 15dtex, crimp percent be 60% crimped fibre feed intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 180 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 200 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 90% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 3
By the heavy denier core-skin fibre that fiber number is 10dtex of 35 weight %, the fiber number of 30 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 35 weight % is 20dtex, crimp percent be 60% crimped fibre feed intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 180 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 200 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 80% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 4
By the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 35 weight % is 20dtex, crimp percent is the crimped fibre of 60% and the anti-bacterial fibre that fiber number is 16dtex of 25 weight % feeds intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 180 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 200 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 80% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 5
By the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 35 weight % is 20dtex, crimp percent is the crimped fibre of 60% and the anti-bacterial fibre that fiber number is 16dtex of 25 weight % feeds intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 200 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 200 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 80% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 6
By the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex, the fiber number of 30 weight % is 20dtex, crimp percent is the crimped fibre of 60% and the anti-bacterial fibre that fiber number is 16dtex of 30 weight % feeds intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 200 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 220 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 72% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Embodiment 7
By the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex and the fiber number of 30 weight % is 20dtex, crimp percent is the crimped fibre of 70% and the anti-bacterial fibre that fiber number is 16dtex of 30 weight % feeds intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 200 DEG C, core composition is conventional polyester fiber, by above-mentioned prepared fiber web layer with the speed of 20 ms/min, it is thermally bonded by 8 meters of hot bellows that temperature is 220 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 85% automobile air-conditioning filter filtering material.Each physical property of filtering material of the present invention sees table 1.
Comparative example 1
By the heavy denier core-skin fibre that fiber number is 20dtex of 20 weight %, the fiber number of 20 weight % is the fine denier core-skin fibre of 4.4dtex, the fiber number of 30 weight % is 20dtex, crimp percent is the crimped fibre of 30%, the fiber number of 30 weight % is that 16dtex anti-bacterial fibre feeds intake, through opener, comb and parallel cotton fibers prior to spinning, lapping forms fiber web layer, wherein in core-skin fibre, skin composition is the copolymerization of polyester fiber of fusing point 180 DEG C, core composition is conventional polyester fiber, by fiber web layer obtained above with the speed of 10 ms/min, it is thermally bonded by 4 meters of hot bellows that temperature is 170 DEG C, reinforced by roll again, prepared grammes per square metre is 80g/m2, face thickness response rate be 65% heat bonding non-woven fabrics.Each physical property of this non-woven fabrics sees table 1.
Comparative example 2
The conventional polyester fiber that fiber number is 10dtex of the heavy denier core-skin fibre that fiber number is 10dtex of 20 weight %, the fine denier core-skin fibre that fiber number is 10dtex of 20 weight % and 60 weight % is fed intake, fiber web layer is formed through opener, comb and parallel cotton fibers prior to spinning, lapping, wherein in core-skin fibre skin composition be the copolymerization of polyester fiber of fusing point 180 DEG C, core composition be conventional polyester fiber, by fiber web layer obtained above with the speed of 10 ms/min, it is thermally bonded by 4 meters of hot bellows that temperature is 200 DEG C, being reinforced by roll, prepared grammes per square metre is 80g/m again2, face thickness response rate be 50% heat bonding non-woven fabrics.Each physical property of this non-woven fabrics sees table 1.
Table 1
Claims (10)
1. an automobile air-conditioning filter filtering material, it is characterized in that: this filtering material is the filter material at least containing core-skin fibre with crimped fibre, and the face thickness response rate of this filtering material is more than 70%, the computing formula of the face thickness response rate of filtering material is as follows: face thickness response rate=(thickness/original depth after pressurized) × 100%.
Automobile air-conditioning filter filtering material the most according to claim 1, it is characterised in that: this filtering material is the filter material of the crimped fibre of the core-skin fibre containing 45～65 weight % and 35～55 weight %.
Automobile air-conditioning filter filtering material the most according to claim 2, it is characterised in that: the heavy denier core-skin fibre containing 25～35 weight % and the fine denier core-skin fibre of 20～30 weight % in described core-skin fibre.
Automobile air-conditioning filter filtering material the most according to claim 1, it is characterised in that: this filtering material contains the anti-bacterial fibre of 10～30 weight %.
Automobile air-conditioning filter filtering material the most according to claim 3, it is characterised in that: the fiber number of described heavy denier core-skin fibre is 10～20dtex, and the fiber number of described fine denier core-skin fibre is 1～10dtex.
Automobile air-conditioning filter filtering material the most according to claim 1 and 2, it is characterised in that: the crimp percent of described crimped fibre is more than 50%.
Automobile air-conditioning filter filtering material the most according to claim 1 and 2, it is characterised in that: JIS L1096 method measures, and the firm softness of this filtering material is more than 100mg.
Automobile air-conditioning filter filtering material the most according to claim 1 and 2, it is characterised in that: the thermal stretching rate of this filtering material is less than 1%.
Automobile air-conditioning filter filtering material the most according to claim 1 and 2, it is characterised in that: ISO11155-1 method measures, and the dust containing capacity of this filtering material ISOA2 dust is 300g/m2Above.
10. the production method of the automobile air-conditioning filter filtering material described in a claim 1, it is characterized in that: to the core-skin fibre of major general 40～70 weight %, the crimped fibre of 30～60 weight % feeds intake, fiber web layer is formed after opener, comb and parallel cotton fibers prior to spinning, lapping, then it is thermally bonded by the hot bellows of length 4～8 meters, temperature 200～220 DEG C with the speed of 10～20 ms/min, carry out thickness adjusted by roll again, finally prepare finished product.
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| CN201510196824.5A CN106139745A (en) | 2015-04-23 | 2015-04-23 | A kind of automobile air-conditioning filter filtering material and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510196824.5A CN106139745A (en) | 2015-04-23 | 2015-04-23 | A kind of automobile air-conditioning filter filtering material and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399116A (en) * | 2017-07-10 | 2017-11-28 | 浙江优全护理用品科技有限公司 | With no paper ultra-thin super soft core body |
| CN113846420A (en) * | 2021-10-27 | 2021-12-28 | 京遇荷花(北京)科技发展有限公司 | Novel filter material and preparation method thereof |
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| CN1293271A (en) * | 1999-10-15 | 2001-05-02 | 可乐丽股份有限公司 | Purous fiber structure and its making method |
| CN1343271A (en) * | 2000-01-07 | 2002-04-03 | 帝人株式会社 | Crimped polyester fiber and fibrous structure comprising the same |
| CN103120872A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所（中国）有限公司 | Filter material for filter element, preparation method and application of filter material |
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- 2015-04-23 CN CN201510196824.5A patent/CN106139745A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293271A (en) * | 1999-10-15 | 2001-05-02 | 可乐丽股份有限公司 | Purous fiber structure and its making method |
| CN1343271A (en) * | 2000-01-07 | 2002-04-03 | 帝人株式会社 | Crimped polyester fiber and fibrous structure comprising the same |
| CN103120872A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所（中国）有限公司 | Filter material for filter element, preparation method and application of filter material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399116A (en) * | 2017-07-10 | 2017-11-28 | 浙江优全护理用品科技有限公司 | With no paper ultra-thin super soft core body |
| CN113846420A (en) * | 2021-10-27 | 2021-12-28 | 京遇荷花(北京)科技发展有限公司 | Novel filter material and preparation method thereof |
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Application publication date: 20161123 |