CN1047738C - Hot adhesion type fibre filtering core and method for producing same - Google Patents
Hot adhesion type fibre filtering core and method for producing same Download PDFInfo
- Publication number
- CN1047738C CN1047738C CN96120402A CN96120402A CN1047738C CN 1047738 C CN1047738 C CN 1047738C CN 96120402 A CN96120402 A CN 96120402A CN 96120402 A CN96120402 A CN 96120402A CN 1047738 C CN1047738 C CN 1047738C
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- filter core
- filtration
- roller
- mould roller
- composite fibre
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- Nonwoven Fabrics (AREA)
Abstract
The present invention provides a hot bonding fiber filter core and technology thereof. Composite fiber non-woven cloth used as raw material is heated by infrared rays, curled and wound around a mould roller and cooled naturally, and then the mould roller is removed. The composite fiber non-woven cloth can be cut into various specifications according to requirements. The filter core has the advantages of favorable self maintenance, rigid support, no deformation in compression and no falling of foreign matter. The filtration accuracy can reach 1 to 25 mu m. The filter core can be used for secure filtration in pure water preparation, treatment in waste water purification, filtration of various lubrication oils and food oils, air filtration, purification of food and drinking water, filtration in medical industry, etc.
Description
The present invention relates to a kind of manufacturing process of filter core, specifically a kind of manufacturing process of thermal bonding fiber filter core.
Chinese patent CN1040735A, name is called the method and apparatus that improves crimping of polyolefin filter tow, disclose the method that a kind of polyolefine fiber bundle that is used for cigarette filter curls, this method is made up of following step: form the polyolefin film with molecular structure 1.; By the heating film to just at it below fusing point, and the heated film that stretches comes the oriented molecule structure; 3. making, the film of oriented molecule structure forms fibrillation and forms the fiber mesh material that is coupled to each other; 4. the net of fibrillation is heated to above environment temperature; 5. the curl net of heated fibrillation.By said method, reach improving curl frequency and inhomogeneity purpose in the fibrillation polyolefin filter tow, improve the uptake and the inhomogeneities of filter tow thus.Though adopted polyolefine fiber in this patent, and heating and curling method, just be used to make cigarette filter, belong to non-self-sustaining or non-rigid filter element, and the application surface of filter element is wideless, can not be used for liquid, air etc. and filter industry.
The object of the present invention is to provide a kind of manufacturing process simple, having can filter liquide or the manufacturing process of the thermal bonding fiber filter core of the self-sustaining of gas or rigidity.
The objective of the invention is to realize by following means.
A kind of manufacturing process of thermal bonding fiber filter core, adopt the polyolefin composite fibre nonwoven cloth to make,, utilize infrared heating according to the fusing point difference of polyolefin composite fibre nonwoven cloth, under temperature control certain condition, utilize fiber self bonding, also Wrapping formed through curling.Its technology may further comprise the steps: 1. preheated mold roller, and the mould roller is through infrared heating, and temperature is controlled at 130～155 ℃, 10～20 minutes time; B. with the polyolefin composite fibre nonwoven cloth, through infrared heating, temperature is controlled between 135～165 ℃, at the uniform velocity twines on the good mould roller of preheating then, and speed is controlled at 0.9～1.2 meter/minute, 10～18 minutes time; After the filter core that winding finishes cools off naturally, the stripper member roller, and cutting reaches required specification.
The invention provides a kind of manufacturing process of thermal bonding fiber filter core, owing to adopt the polyolefin composite fibre nonwoven cloth, through infrared heating, then the polyolefin composite fibre nonwoven cloth that heats is curled and be wrapped on the mould roller, the filter core that winding finishes is through natural cooling, stripper member roller, and cutting reaches certain specification as required.Technology is simple, the filter core excessively that this technology is made, and the performance of controlling oneself is good, rigid support, pressurized is indeformable, and no foreign matter comes off.Filtering accuracy can reach 1 μ m～25 μ m, and the security personnel that can be used for pure water preparation filter, the purified treatment of waste water, and various lubricating oil, edible oil filtration, air filtration, food and drink water purifying, industries such as medicine are filtered.
Be elaborated below in conjunction with embodiment:
Embodiment 1.
Select 40g/m for use
2The polyolefin composite fibre nonwoven cloth, the silk footpath of fiber is 6 daniers, nonwoven is cut into wide 27cm, the specification of long 13000cm.Mould roller weight is 1750g, earlier with the mould roller through infrared preheating, temperature is controlled at 155 ℃, preheating 15 minutes, then with of the speed at the uniform velocity feeding of polyolefin composite fibre nonwoven cloth with 1 meter/minute, nonwoven is through infrared heating, temperature is controlled at 140 ℃ ± 2 ℃, and the mould roller that preheating is good at the uniform velocity curls with 1 meter/minute speed and twines, and twines 13 minutes, the diameter that twine filter core this moment can reach 65mm, the mould roller is taken out from infrared firing equipment together with filter core, and natural cooling and demolding tool roller cuts growth 250mm then as required, its specification is the filter core of crossing of φ 65 * 250mm, its filtering accuracy is 5 μ m, filters under dynamic condition, and 0.4MPa pressure reduction filter core is modification not, do not influence filter effect, about the heavy 135g of filter core.
Embodiment 2.
With embodiment 1 different being, the filament of selecting the polyolefin composite fibre nonwoven cloth for use directly is 9 daniers, wide 105cm, and long 12000cm, the amount of feeding of nonwoven are 0.95 meter/minute, the mould roller at the uniform velocity curls with same speed and twines.The polyolefin composite fibre nonwoven cloth, through infrared heating, temperature is controlled at 145 ° ± 2 ℃, curl to twine about 13 minutes, about filter core diameter 65mm, cools off naturally then, the stripper member roller, cuts into the specification of φ 65 * 1000mm.Its filtering accuracy is 10 μ m, filters under dynamic condition, and 0.35MPa pressure reduction filter core is indeformable, about the heavy 125g of filter core.
Embodiment 3.
With embodiment 1 different being, the length of selecting the polyolefin composite fibre nonwoven cloth for use is 15000cm, adds the impressed pressure of 4000g at the two ends of mould roller, curls then and twines 15 minutes.The diameter that obtains filter core is 65mm, through natural cooling, stripper member roller, and cutting growth 250mm, then the specification of filter core is φ 65mm * 250mm, and its filtering accuracy is 3 μ m, filters under dynamic condition, 0.4MPa the pressure reduction filter core is indeformable, does not influence filter effect, about the heavy 155g of filter core.
Claims (3)
1. the manufacturing process of a thermal bonding fiber filter core is characterized in that the polyolefin composite fibre nonwoven cloth through infrared heating, then with the heated composite fibre nonwoven cloth of the curling winding of mould roller.
2. the manufacturing process of thermal bonding fiber filter core as claimed in claim 1 is characterized in that may further comprise the steps:
A. preheated mold roller, temperature is controlled at 130～155 ℃,
B. will cut out good polyolefin composite fibre nonwoven cloth, through infrared heating, temperature is controlled between 135～165 ℃, on the good mould roller of preheating, at the uniform velocity twine then,
C. twine the filter core that finishes, after cooling off naturally, the stripper member roller, and cutting reaches required specification.
3. the technology of thermal bonding fiber filter core as claimed in claim 2 is characterized in that the mould roller at the uniform velocity twines, and speed is controlled at 0.9～1.2 meter/minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120402A CN1047738C (en) | 1996-10-23 | 1996-10-23 | Hot adhesion type fibre filtering core and method for producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120402A CN1047738C (en) | 1996-10-23 | 1996-10-23 | Hot adhesion type fibre filtering core and method for producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1161248A CN1161248A (en) | 1997-10-08 |
| CN1047738C true CN1047738C (en) | 1999-12-29 |
Family
ID=5126297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96120402A Expired - Fee Related CN1047738C (en) | 1996-10-23 | 1996-10-23 | Hot adhesion type fibre filtering core and method for producing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047738C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229460B (en) * | 2007-01-23 | 2011-05-18 | 艾欧史密斯（上海）水处理产品有限公司 | Outside thread recessed smelting and spray macromolecule material filter element and manufacturing method thereof |
| CN102210980A (en) * | 2010-04-01 | 2011-10-12 | 天津市万峰净化设备有限公司 | Filter membrane specially for white spirit and production process thereof |
| CN102041751B (en) * | 2010-11-25 | 2012-08-22 | 浙江省普瑞科技有限公司 | High-temperature edible oil filter paper and manufacturing method thereof |
| CN102225276A (en) * | 2011-05-16 | 2011-10-26 | 天津市晓川过滤设备发展有限公司 | High-precision low-resistance flue gas demisting filter element and manufacturing method thereof |
| CN104107587A (en) * | 2013-04-19 | 2014-10-22 | 李青瑛 | Filter core and manufacturing method thereof |
| CN103911910A (en) * | 2014-03-20 | 2014-07-09 | 杭州特种纸业有限公司 | Plant oil filter paper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040735A (en) * | 1988-08-10 | 1990-03-28 | 菲利普莫里斯生产公司 | Improve the method and apparatus of crimping of polyolefin filter tow |
| CN2055189U (en) * | 1989-09-21 | 1990-03-28 | 长春市宽城实用科技推广站 | Non-fabric filter core made by polyurethane end cover thermoset process |
-
1996
- 1996-10-23 CN CN96120402A patent/CN1047738C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040735A (en) * | 1988-08-10 | 1990-03-28 | 菲利普莫里斯生产公司 | Improve the method and apparatus of crimping of polyolefin filter tow |
| CN2055189U (en) * | 1989-09-21 | 1990-03-28 | 长春市宽城实用科技推广站 | Non-fabric filter core made by polyurethane end cover thermoset process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1161248A (en) | 1997-10-08 |
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