CN102828326A - Preparation method of high-density three-dimensional woven fabric - Google Patents
Preparation method of high-density three-dimensional woven fabric Download PDFInfo
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- CN102828326A CN102828326A CN2012103311643A CN201210331164A CN102828326A CN 102828326 A CN102828326 A CN 102828326A CN 2012103311643 A CN2012103311643 A CN 2012103311643A CN 201210331164 A CN201210331164 A CN 201210331164A CN 102828326 A CN102828326 A CN 102828326A
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Abstract
The invention relates to a preparation method of a high-density three-dimensional woven fabric, which is characterized in that single filament, multifilament, air textured yarn, cladded yarn and skin-core structure complex yarn made of nylon, terylene, polypropylene fiber and other raw materials are used as warp, weft and binding yarn of the three-dimensional fabric; and reasonable yarn fineness, densities of warp and weft and weaving layer number are selected, and the three-dimensional woven fabric of a three-dimensional perpendicular woven structure, a three-dimensional angle interlocked structure or other structures are adopted to weave a filtering membrane. According to the invention, the filtering cloth membrane is woven by adopting a three-dimensional loom or a two-dimensional double-warp-beam shuttle loom; the method is simple, and the structure is compact; particles in filtrate are effectively entrapped while guaranteeing high flux; and in addition, the used raw materials are low in cost, and the requirements on novel low-cost membrane modules in the industry are met.
Description
Technical field
The invention belongs to the preparation field of the film of membrane bioreactor, particularly a kind of preparation method of density three-dimensional woven fabric.
Background technology
Filtering film component in the membrane bioreactor of industrial applications is hollow-fibre membrane or flat sheet membrane mostly at present.In use, suspension contacts with the film surface, under the effect of pressure; Particle less than the membrane material aperture passes filter membrane; Be trapped within the film surface more than or equal to the particle in aperture and form one deck filter cake,, thereby realize Separation of Solid and Liquid then by the cake layer trapped particles of progressive additive.Though membrane biological reactor process is quite ripe, it applies not satisfactory.Crucial problem is that the organic or inorganic film price that adopts usually is expensive; Cause whole investment higher; Film pollutes and causes membrane flux to descend, and increases the frequency that membrane module is changed and film cleans, thereby increases operating cost; So limited the application development trend from now on of membrane bioreactor is the membrane material of superior performances such as exploitation high strength, big flux, low cost, anti-pollution, carries out new membrane assembly and modular design thereof.
Mainly contain non-weaving cloth as alternative cloth membrane material on the market as membrane module, woven cloth film, multilayer is mixed cloth film etc.The non-weaving cloth film has cheap, and preparation is simple, and the big advantage of industrialization output, but owing to its inner pore passage structure can not be controlled through preparation technology, is crooked blind hole mostly, causes in a single day being stopped up and can't washing by dirt, and continuation is used.So service life is limited, the sewage flux descends very fast.The porosity that common machine is weaved cotton cloth is to control through the deinterleaving method of filling yarn fineness and filling yarn; Be through hole mostly; But also have following problem as the membrane module alternative materials: the aperture of woven fabric is generally big than membrane material, and is not strong to the interception capacity of particle; Be filtered particle and very easily interweave at longitude and latitude and point out accumulation and assemble, fabric pore is diminished, filter cake stops up, and the sewage suction pressure that needs becomes big, and filter efficiency reduces.Under certain suction pressure, deformation easily need add supporting layer, could constitute complete membrane module.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method of density three-dimensional woven fabric, has advantage simple to operate, that cost is low, is beneficial to the popularization of industrialization production and membrane bioreactor; The filter membrane of the present invention's preparation is tight as the membrane module substitute structure of reactor, and mechanical strength is high, is guaranteeing high-throughout while effectively catching filtrating particle; The sewage quantity of handling is largely increased; Inner duct is penetrating hole, helps the cleaning of peeling off of filter cake and filter cloth, can recycle for a long time; Can not cause secondary pollution, recyclable utilization again.
The preparation method of a kind of density three-dimensional woven fabric of the present invention comprises: select through weft yarn and bundled yarn; Select thread density, weaving density and weave the number of plies; Weave and obtain three-dimensional woven fabric.
Said raw material through weft yarn and bundled yarn is polyamide fibre, terylene or polypropylene fibre; Through weft yarn and bundled yarn is in monofilament, multifilament, air deformation yarn, cladded yarn or the skin-core structure composite yarn one or more.
The thread density through the weft yarn bundled yarn of said three-dimensional woven fabric is the low line density of 2tex to 20tex, and weaving density is through close 500 every layer/10cm to 1000 piece/10cm, and every layer of filling density is the high-density fabric of 100/10cm to 300 piece/10cm.
Said three-dimensional woven fabric is at least 3 layers.
Said three-dimensional woven fabric can have multiple weaving structure according to the difference of bundled yarn access node mode, is three-dimensional orthogonal woven fabric or three-dimensional angle-interlock fabric.
The three-dimensional orthogonal woven fabric of the plain weave that said three-dimensional orthogonal woven fabric obtains for the rule of gaiting that becomes bundled yarn, twill, satin weave reform weave.
Said three-dimensional angle-interlock fabric is the multilayer orthogonal angle interlock fabric of multilayer skew angle interlock fabric, belt material warp or the inlaid thread of belt material warp or inlaid thread, and the chain fabric of three dimensional angular is the angle interlock fabric, is a kind of of woven three dimensional fabric.
Said three-dimensional orthogonal woven structure is on the weft yarn and the warp thread basis on the Y direction of original directions X, and the yarn of introducing the Z direction is a bundled yarn, and bundled yarn is spread the stereochemical structure that layer is strapped in becomes integral body together with orthogonal through weft yarn.According to the difference of bundled yarn access node mode, multiple weaving structure can be arranged, comprise the structure of the three-dimensional orthogonal woven fabric and the three-dimensional angle-interlock woven fabric of multiple variation.Said three-dimensional woven fabric is applied to make the antibacterium adsorption structure, the cloth film of high flux structure or high-strength structure.According to the specific requirement of actual production, each layer selection different material when weaving, the yarn of difference in functionality is selected suitable thread count and fabric layers, weaves out the multiple cloth film that satisfies different filterconditions and difference in functionality.
Said three-dimensional woven fabric is weaved on three-dimensional loom or conventional two-dimensional double ends axle fly-shuttle loom.
Beneficial effect
(1) a kind of density three-dimensional woven fabric of the present invention's preparation, the membrane module substitute as membrane bioreactor has the advantage that the preparation method is simple, mechanical strength is high, cost is low, is beneficial to the popularization of industrialization production and membrane bioreactor.
(2) the present invention increases the sewage flux under the prerequisite that guarantees filter effect, and the sewage quantity of promptly under certain pressure, handling is largely increased.
(3) the present invention is a kind of Woven filter cloth, and inner duct is penetrating hole, helps the cleaning of peeling off of filter cake and filter cloth, reaches for a long time to recycle.
(4) the present invention can not cause secondary pollution as the membrane module substitute of reactor, utilization more capable of washing.
Description of drawings
Fig. 1 is the structural representation of three-dimensional orthogonal woven fabric; Wherein, 1 is bundled yarn, and 2 is weft yarn, and 3 is warp thread;
Fig. 2 is a kind of structural representation of three-dimensional angle-interlock woven fabric; Wherein, 4 is warp thread, and 5 is weft yarn;
Fig. 3 is the three-dimensional orthogonal woven fabric organization chart; Wherein, 6 is bundled yarn (Z yarn).
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
The three-dimensional orthogonal woven filter membrane material
Select nylon monofilament as warp thread and bundled yarn, the polyamide fibre air deformation yarn is weaved out the three-dimensional orthogonal fabric as weft yarn on three-dimensional loom, the plain weave construction sketch map of three-dimensional orthogonal woven fabric as shown in Figure 1.Described three-dimensional orthogonal woven fabric comprises warp thread 3 and weft yarn 2, and described warp thread 3 is connected through bundled yarn 1 with weft yarn 2.The line density of warp thread and bundled yarn is 6tex.The line density of weft yarn is 5tex.
Weave step:
The first step, all warp thread of the lifting the superiors form one time shed open, introduce a weft yarn; Then, shed open remains unchanged, and just time top line rises, and introduces a weft yarn again; And the like, all rise until all warp thread, only stay bundled yarn down, at this moment, introduce last root weft yarn, concentrate and break latitude (or every introducing one latitude beats once, or opens a plurality of shed opens simultaneously and introduce many weft yarns simultaneously.
Second step promoted bundled yarn and all warp thread except that the orlop warp thread, formed one time shed open, introduced a weft yarn; Then, shed open remains unchanged, and just the warp thread of time lower floor descends, and introduces a weft yarn again: and the like, all descend until all warp thread, only stay bundled yarn last, at this moment, introduce last root weft yarn, concentrate and break weft yarn one time.So far, accomplish a tissue circulation.Repeat above-mentioned steps, can make to weave continuously and carry out.
Every layer through close be 570/10cm, every layer filling density is 150/10cm, bundled yarn density is 570/10cm.Membrane module size design according to membrane bioreactor is weaved fabric width.
Embodiment 2
The woven filtering material of three-dimensional angle-interlock
Select nylon monofilament as warp thread; The polyamide fibre air deformation yarn is weaved out the three-dimensional angle-interlock woven fabric as weft yarn in traditional double on the axle fly-shuttle loom, as shown in Figure 2; Structural representation for a kind of three-dimensional angle-interlock woven fabric; In the described three-dimensional angle-interlock tissue, comprise warp thread 4 and weft yarn 5, the whole thickness that every warp thread all penetrates fabric is rake angle (45 °) with each layer weft yarn and interweaves successively.Warp thread is a nylon monofilament, and line density is 6tex; Weft yarn is the polyamide fibre air deformation yarn, and wherein first and second two-layer weft yarn density is 5tex, and the line density of three, four layers of weft yarn is 6tex.
First warp thread is mentioned when knitting first weft thread in proper order by the shedding of looming weaving figure when weaving, and other all warp thread are not all mentioned.When knitting second weft yarn, according to order with first and second, five warp thread mention; When knitting the 3rd weft yarn, first and second root warp thread is mentioned; When knitting the 4th weft yarn, first, second and third, five warp thread mention; When other weft yarn of feeding, the rest may be inferred shedding.
Every layer through close be 600/10cm, every layer filling density is 140/10cm, and fabric width is weaved in design according to the actual membrane size of components of membrane bioreactor.
Embodiment 3
The high-strength filtering material of three-dimensional woven
Select polyamide multifilament as warp thread, line density is 15tex, and nylon monofilament is as weft yarn and bundled yarn, and line density is 10tex, on the axle fly-shuttle loom, weaves three-dimensional orthogonal woven fabric in traditional double.Described three-dimensional orthogonal woven fabric has three layers of warp thread, and four layers of weft yarn, every layer warp count are 650/10cm, and every layer of weft count is 300/10cm, and bundled yarn density is 650/10cm.This fabric has than high-tensile strength, is difficult for creep, can under big pressure drop condition, filter.The order of gaiting of described three-dimensional orthogonal woven fabric bundled yarn (Z yarn) 6 is plain weave structure, and corresponding last machine organization chart is as shown in Figure 3.When weaving, warp thread and bundled yarn (Z yarn) are respectively around on axle, carrying out the warp let-off to two.But described three dimensional fabric weave step reference example one, weave fabric width according to the actual membrane size of components design of membrane bioreactor.
Embodiment 4
Three-dimensional woven anti-soil filter membrane material
Selecting woven yarn of nano-silver ionic nylon fibre and polyamide fibre air deformation yarn is weft yarn; Nylon monofilament is warp thread and bundled yarn; On three-dimensional loom, weave three-dimensional orthogonal woven fabric, described three-dimensional orthogonal woven fabric has three layers of warp thread, four layers of weft yarn; First, second layer weft yarn adopts nano-silver ionic polyamide fibre yarn, and line density is 5tex.The 3rd layer of weft yarn used the polyamide fibre air deformation yarn, and line density is 6tex.The line density of nylon monofilament is 6tex, and every layer warp count is 600/10cm, and every layer filling density is 250/10cm, and bundled yarn density is 600/10cm, and weaving structure is the three-dimensional orthogonal woven fabric of satin weave.The mud that the smooth bacterium absorption that can reduce in the membrane bioreactor of the fabric face of this structure causes adheres to obstruction, is applicable to the long-time running environment.According to corresponding satin weave looming draft, the step of weaving of described three dimensional fabric is similar to instance one when weaving, and only bundled yarn shedding order is different.Actual weaving according to the membrane module size design of membrane bioreactor weaved fabric width.
Embodiment 5
Three-dimensional woven high flux filter membrane material
Select nylon monofilament be woven fabric through weft yarn, polyester monofilament is weaved three-dimensional orthogonal woven fabric as bundled yarn on three-dimensional loom.Described three-dimensional orthogonal woven fabric has three layers of warp thread; Four layers of weft yarn, wherein the line density of ground floor second layer warp thread and weft yarn is 10tex, the line density of the three or four layer of warp thread and weft yarn is 5tex; Every layer warp count is 550/10cm, and weft count is 250/10cm.The line density of bundled yarn is 10tex, and interleaved order is a plain weave structure, and the density of bundled yarn is 550/10cm.This high-density fabric has higher porosity, when keeping filter effect, can improve the sewage flux, satisfies the demand of fast processing large tracts of land sewage.But described three dimensional fabric weave step reference example one, and weave fabric width according to the membrane module actual size design of membrane bioreactor.
Claims (10)
1. the preparation method of a density three-dimensional woven fabric is characterized in that: select through weft yarn and bundled yarn; Select thread density, weaving density and weave the number of plies; Weave and obtain three-dimensional woven fabric.
2. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said raw material through weft yarn and bundled yarn is polyamide fibre, terylene or polypropylene fibre; Through weft yarn and bundled yarn is in monofilament, multifilament, air deformation yarn, cladded yarn or the compound yarn one or more.
3. the preparation method of a kind of density three-dimensional woven fabric according to claim 1; It is characterized in that: the thread density through weft yarn and bundled yarn of said three-dimensional woven fabric is 2tex to 20tex; Weaving yarns density: through close 500 every layer/10cm to 1000 piece/10cm; Filling density is 100 every layer/10cm to 300 piece/10cm, bundled yarn density according to institutional framework with individual layer through close respective change.
4. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional woven fabric is at least 3 layers.
5. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional woven fabric is three-dimensional orthogonal woven fabric or three-dimensional angle-interlock fabric.
6. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional orthogonal woven fabric is the three-dimensional orthogonal woven fabric of plain weave, twill, satin weave reform weave.
7. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional angle-interlock fabric is the multilayer orthogonal angle interlock fabric of multilayer skew angle interlock fabric, belt material warp or the inlaid thread of belt material warp or inlaid thread.
8. the preparation method of a kind of density three-dimensional woven fabric according to claim 5; It is characterized in that: said three-dimensional orthogonal woven structure is on the weft yarn and the warp thread basis on the Y direction of original directions X; The yarn of introducing the Z direction is a bundled yarn, and bundled yarn is spread the stereochemical structure that layer is strapped in becomes integral body together with orthogonal through weft yarn.
9. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional woven fabric is weaved on three-dimensional loom or two-dimentional double ends axle fly-shuttle loom.
10. the preparation method of a kind of density three-dimensional woven fabric according to claim 1 is characterized in that: said three-dimensional woven fabric is applied to weave the cloth film of antibacterium adsorption structure, high flux structure or high-strength structure.
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| CN103835057A (en) * | 2014-02-28 | 2014-06-04 | 东华大学 | Three-dimensional woven fabric manufacturing method |
| CN104213301A (en) * | 2014-09-18 | 2014-12-17 | 海安县君权滤布有限公司 | Weaving method of dual-layer filtering fabric |
| CN104831449A (en) * | 2015-03-26 | 2015-08-12 | 苏州威尔德工贸有限公司 | Three-dimensional oil suction fabric |
| CN104971547A (en) * | 2015-06-19 | 2015-10-14 | 东华大学 | Preparation method of high-temperature gas filter material for three-dimensional orthogonal woven fabric bag-type dust removal equipment |
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| CN105597444A (en) * | 2016-03-29 | 2016-05-25 | 中原工学院 | Leno-selvedge filtering bag for filtering high-temperature flue gas |
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| CN108939693A (en) * | 2018-10-10 | 2018-12-07 | 响水县宝吉纺织有限公司 | A kind of composite filtering cloth |
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| CN103835057A (en) * | 2014-02-28 | 2014-06-04 | 东华大学 | Three-dimensional woven fabric manufacturing method |
| CN104213301A (en) * | 2014-09-18 | 2014-12-17 | 海安县君权滤布有限公司 | Weaving method of dual-layer filtering fabric |
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| CN106149168A (en) * | 2016-09-22 | 2016-11-23 | 天津工业大学 | A kind of method for weaving of 2.5D class satin construction fabric |
| CN107675335A (en) * | 2017-09-26 | 2018-02-09 | 武汉纺织大学 | A kind of preparation method with laying-in three-dimensional woven fabric |
| CN108677352A (en) * | 2018-06-11 | 2018-10-19 | 武汉纺织大学 | Weaving method and device |
| CN108939693A (en) * | 2018-10-10 | 2018-12-07 | 响水县宝吉纺织有限公司 | A kind of composite filtering cloth |
| CN109825924A (en) * | 2019-01-23 | 2019-05-31 | 达亚帆布(上海)有限公司 | A kind of moving-feel decorative cloth fabric and preparation method thereof, reed device |
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