CN1105283A - Process for producing laminate composite filter material - Google Patents
Process for producing laminate composite filter material Download PDFInfo
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- CN1105283A CN1105283A CN93115286A CN93115286A CN1105283A CN 1105283 A CN1105283 A CN 1105283A CN 93115286 A CN93115286 A CN 93115286A CN 93115286 A CN93115286 A CN 93115286A CN 1105283 A CN1105283 A CN 1105283A
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- acupuncture
- filter material
- composite filter
- producing laminate
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Abstract
The method for producing high-quality chemical fibre filter material includes four steps: compounding multiple layers of non-woven chemical fibre fabric, top needling, bottom needling and coiling. Different fibre felt layers with different characteristics are used to increase surficial strength and form a filtering gradient in filter material, so increasing filter speed and effect and purity of filtrate.
Description
The invention discloses the production and processing technology of a kind of top grade, high-quality chemical fiber filtering material, be widely used in the production and processing of the chemical fiber filtering material of non-woven chemical fibre processing industry.
According to China's existing chemical fibre filtrate production technology, its product is the acupuncture of individual layer single face, mainly contains four big shortcomings: the one, and the particle in the liquid-carrier all is deposited on the surface of filtering material, easily causes the aperture to stop up, and service life is short; The 2nd, the aperture can not form the filtration gradient, and resistance is big, and the rate of filtration is slow; The 3rd, single face acupuncture is subject to the influence of various accidentalia, and the aperture is inhomogeneous, influences filter effect; The 4th, the back side of single face needle punched filter material is hair side, and during filtration, its chopped fibers easily enters in the filtrate of being filtered with liquid, has reduced filtrate purity.
Task of the present invention will provide a kind of improved non-woven chemical fiber filtering material production technology exactly, and the filtrate that comes out by this explained hereafter not only good filtration effect, purity height, filtering velocity is fast, and the aperture is difficult for stopping up long service life.
Task of the present invention is achieved in that the first, becomes the MULTILAYER COMPOSITE of the individual layer of past filtering material into multiple different qualities fiber; The second, become single face acupuncture and be two-side needled.Like this, on raw material, by the fiber of selecting different qualities for use and different proportionings and different fibre numbers thereof; When acupuncture,, make filtering material form inherent filtration gradient by regulating model, depth of needling and the needling density of pricker.This has not only significantly reduced filtration resistance, has improved the rate of filtration, and impurity particle is not all to be deposited on the filter cloth surface, by the systemic action of filtrate self, has improved pollutant holding capability on the contrary, and the aperture is not easy to stop up, and has improved service life.Because carry out two-side needled, not only the two sides is all more smooth, and has strengthened surface strength greatly, has avoided chopped fibers to enter filtrate, has improved filtrate purity.Owing to filter the formation of gradient and the effect of two-side needled, reduced the influence of accidentalia again, pore size filter is more even, has improved filter effect.Because this technology is to carry out on the basis of existing equipment, so needn't increase new equipment, need not any investment; Owing to do not exceed the nonwovens process scope on this technological principle, be easy to grasp and operation again.Simultaneously, two-side needled has improved product quality and aesthetic feeling greatly.
Below in conjunction with accompanying drawing technology of the present invention is further described.
Fig. 1, common non-woven chemical fibre filtrate production technology
Fig. 2, the two-layer composite filtering material technological process of production of the present invention figure
Common non-woven chemical fibre filtrate production technology is the basis and the basic process of technological process of the present invention, so, be necessary to briefly introduce.With reference to accompanying drawing 1, the chemical fiber filtering material production technology generally must be through seven steps in sequence, and promptly select materials (A), shredding mix (B), carding (C), lapping lamination (D), pre-thorn (E), main thorn (F) and rolling (G).Because filtering different liquid must be with the filtering material with particular characteristic and parameter request, to regulate filtering material pore size filter etc., so, select for use fiber to do raw material with certain characteristic, mainly comprise attachment on fibre fineness, fiber surface shape and surface state, the fiber etc.After select materials (A), just enter into net preparation-shredding and mix (B), its objective is the big fibrage piece of denser is become looser fubril bundle piece, realize the elementary mixing of various different sizes, characteristic fiber simultaneously, and be beneficial to and further carry out combing.Carding (C) carries out branch comb, cohesion transfer by carding machine to fibrage repeated multiple times ground exactly, in whole branch comb transfer process, strong mixed stepless action is taking place, and fiber is fully loosened, and reaches the filament state, and gets rid of tiny trifle in the world; Simultaneously, form meet that next procedure uses have certain specification, a quantitative uniform fibers net.Lapping lamination (D) is a simple mechanical process, fibre web is become by crossing stack have certain thickness composite web, and can make the disconnected irregularity of lengthy motion picture of fibrillation list net effectively up, for reinforcing is prepared for finished product.Next step be to have certain thickness and uniformly composite web carry out acupuncture mechanical consolidation.Acupuncture can be divided into pre-thorn (E) and two steps of main thorn (F), also can an acupuncture once.Pre-thorn (E) plays preliminary reinforcement effect.For general nonwoven, main thorn (F) only plays further reinforcement effect, and for filtering material, its starting point is the structure that forms a kind of inherence, promptly by the model of regulating pricker, the concentration and the density of acupuncture, again in conjunction with selected raw material, in the inner aperture that meets pre-provisioning request that forms of product, to filter the liquid that variety classes and different-effect require.Through after the acupuncture, finished product clot (G), whole process of production has just come to an end.
With reference to accompanying drawing 2, this figure is an example with two-layer composite filtering material production technology, introduces the situation of the non-woven filtrate MULTILAYER COMPOSITE of chemical fibre.It is made of MULTILAYER COMPOSITE (1), upward main acupuncture (2), following main acupuncture (3) and (4) four steps of rolling.MULTILAYER COMPOSITE (1) is a most loaded down with trivial details part in the technology of the present invention, and is clear for simplifying, and we still use conventional letter A, B in the accompanying drawing 1 ... G represents that respectively selecting materials in the technology, shredding mix ... rolling; The subscript 1,2 of symbol represents that respectively it belongs to which bar in two programs of (I), (II) of carrying out side by side in the MULTILAYER COMPOSITE (1), to show difference.
We are not difficult to find out from accompanying drawing 2, also sequencer program (II) in the MULTILAYER COMPOSITE (1) is together with follow-up last main acupuncture (2), following main acupuncture (3) and rolling (4), can constitute a non-woven chemical fibre filtrate technological process of production complete, two-side needled, and the also sequencer program (I) in the MULTILAYER COMPOSITE (1) exactly also is a self-existent and very complete common Fructus Zanthoxyli Dissiti non-woven chemical fibre filtrate production technology.And program (I) only is the appropriate location in the non-woven chemical fibre filtrate of the two-side needled technological process of production, promptly in the last main acupuncture (2) and the following front of main acupuncture (3), debatching in time simply, mechanically is compound to finished finished product and only passes through pre-thorn (E
2) fibre felt layer on, both are common again through upper and lower main acupunctures.Why leave no choice but through debatching compound (H) and sequencer program (I) be compound in the main technological process, and do not take at lapping lamination (D
2) do do time directly make it to reach predetermined thickness and simplify technological process? because we just do not carry out MULTILAYER COMPOSITE in order to make filtrate reach certain thickness, but, multiple fibre felt layer with different material characteristic and proportioning is combined into filtrate and compound with a kind of ad hoc structure for being gathered around.B, C, D, E in the MULTILAYER COMPOSITE (1) in two and sequencer program (I) and (II) are identical, and its difference is A
1And A
2, be the difference of kind, characteristic and the proportioning of the raw material matched.Because A
1And A
2The difference of the kind of selected fiber, proportioning and the aspects such as attachment on fibre fineness, fiber surface shape and surface state, fiber thereof, even use the pricker of model of the same race to carry out acupuncture, formed aperture can be not identical yet, and himself systemic action also has dramatic difference.Like this, in not only on filtering material, forming the filtration gradient, and guaranteed the raising of pollutant holding capability.Owing to formed inherent filtration gradient, not only reduced filtration resistance greatly, improved the rate of filtration, and impurity particle can all not be deposited on the surface of filtering material, also can enter into filtering material inside; Owing to guaranteed systemic action to have improved pollutant holding capability, the aperture is difficult for stopping up, and has improved service life greatly again.
The two-layer composite filtering material technological process of production of the present invention figure through MULTILAYER COMPOSITE (1) after, be to go up main acupuncture (2) and main acupuncture (3) down, upper and lower main acupuncture and not requiring is in proper order carried out, following main acupuncture (3) also can be listed in main acupuncture (2) before.There are three effects in this two step: the one, through twice acupuncture, guaranteed the obvolvent dynamics between each layer fibre felt layer after the MULTILAYER COMPOSITE; The 2nd, guarantee that the two sides of filtrate is all more smooth, and strengthened surface strength greatly, avoided that the chopped fibers of hair side enters filtrate after the single face acupuncture, improved the purity of filtrate, also strengthened the aesthetic feeling of product simultaneously; The 3rd, because the difference of selecting materials makes filtrate self can form the filtration gradient, add the effect of two-side needled, reduced the influence of accidentalia, guaranteed that pore size filter is more even, improved filter effect.In order to guarantee that the aperture after the acupuncture meets the specific (special) requirements of filtration, should select materials under the prerequisite of characteristic taking into full account difference, suitably select the pricker of different model, and the concentration of definite acupuncture and density.Again through last procedure rolling (4), just can obtain required product after the acupuncture.
When need carry out three layers and even more multi-layered compound tense, its process with in the MULTILAYER COMPOSITE (1) among the two-layer composite filtering material technological process of production figure and sequencer program (I) the same, the fibre felt layer that multilayer is desired to be compounded in one is arranged according to pre-designed levels such as upper, middle and lower, carry out debatching compound (H) simultaneously, and then carry out upper and lower main thorn jointly and rolling gets final product.
This invented technology flow process does not exceed the scope of general nonwovens process, and not only need not increases investment, increases equipment, and is easy to grasp and operation.With the filtering material that this explained hereafter is come out, have that filtration resistance is little, filtering velocity is high, good filtration effect, purity height, pollutant holding capability are big, long service life and be imbued with characteristics such as aesthetic feeling, are widely used in filtering lacquer process and water treatment.Industry such as food processing and medicine also has utmost point application prospects.
When adopting this invented technology flow process, remove and grasp on suitable link the debatching compound (H), again emphasis grasp select materials just passable with upper and lower main acupuncture.
Claims (4)
1, a kind of is the process for producing laminate composite filter material of basic craft course with select materials (A), shredding mixing (B), carding (C), lapping lamination (D), pre-thorn (E), main thorn (F) and rolling (G), it is characterized in that: its main acupuncture is two-side needled, and it constitutes MULTILAYER COMPOSITE (1) again through debatching compound (H).
2, according to the described process for producing laminate composite filter material of claim 1, it is characterized in that: the A that selects materials in the MULTILAYER COMPOSITE (1)
1And A
2, the kind of its selected raw material, characteristic and proportioning thereof have nothing in common with each other, and require to decide with the particular characteristic to product.
3, according to the described process for producing laminate composite filter material of claim 1, it is characterized in that: the also sequencer program (I) in the MULTILAYER COMPOSITE (1) is before two-side needled, at pre-thorn (E
2) the back carry out debatching compound (H).
4, according to the described process for producing laminate composite filter material of claim 1, it is characterized in that: two-side needled by be not go up in sequence main acupuncture (2) and down main acupuncture (3) two parts constitute, the model of pricker, the degree of depth of acupuncture and density are considering to select materials A
1, A
2Prerequisite under, with the particular characteristic of product is required to decide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93115286A CN1105283A (en) | 1993-12-29 | 1993-12-29 | Process for producing laminate composite filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93115286A CN1105283A (en) | 1993-12-29 | 1993-12-29 | Process for producing laminate composite filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1105283A true CN1105283A (en) | 1995-07-19 |
Family
ID=4990937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93115286A Pending CN1105283A (en) | 1993-12-29 | 1993-12-29 | Process for producing laminate composite filter material |
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|---|---|
| CN (1) | CN1105283A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346860C (en) * | 2005-05-12 | 2007-11-07 | 孙熙 | Production of high-density topping filtering material from three gradient |
| CN102505357A (en) * | 2011-09-22 | 2012-06-20 | 东华大学 | Electrostatic spinning melt blowing composite non-woven material for filtering blood and preparation method of electrostatic spinning melt blowing composite non-woven material |
| CN102926130A (en) * | 2012-11-09 | 2013-02-13 | 昆山吉美川纤维科技有限公司 | Filter screen and manufacturing method thereof |
| CN103255579A (en) * | 2013-04-25 | 2013-08-21 | 江阴骏华纺织科技有限公司 | Collagen fiber base cloth production line |
| CN107723926A (en) * | 2017-11-10 | 2018-02-23 | 山东格蓝云天环境科技有限公司 | Low voltage electrostatic dedusting acupuncture conductive non-woven fabrics filter screen manufacture method, system and application |
-
1993
- 1993-12-29 CN CN93115286A patent/CN1105283A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346860C (en) * | 2005-05-12 | 2007-11-07 | 孙熙 | Production of high-density topping filtering material from three gradient |
| CN102505357A (en) * | 2011-09-22 | 2012-06-20 | 东华大学 | Electrostatic spinning melt blowing composite non-woven material for filtering blood and preparation method of electrostatic spinning melt blowing composite non-woven material |
| CN102926130A (en) * | 2012-11-09 | 2013-02-13 | 昆山吉美川纤维科技有限公司 | Filter screen and manufacturing method thereof |
| CN102926130B (en) * | 2012-11-09 | 2016-03-23 | 昆山吉美川纤维科技有限公司 | Screen pack and preparation method thereof |
| CN103255579A (en) * | 2013-04-25 | 2013-08-21 | 江阴骏华纺织科技有限公司 | Collagen fiber base cloth production line |
| CN103255579B (en) * | 2013-04-25 | 2015-11-18 | 江阴骏华纺织科技有限公司 | A kind of collagen fiber base cloth production line |
| CN107723926A (en) * | 2017-11-10 | 2018-02-23 | 山东格蓝云天环境科技有限公司 | Low voltage electrostatic dedusting acupuncture conductive non-woven fabrics filter screen manufacture method, system and application |
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