CN103696086A - Production method for stationery clamp screen cloth - Google Patents
Production method for stationery clamp screen cloth Download PDFInfo
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- CN103696086A CN103696086A CN201310696729.2A CN201310696729A CN103696086A CN 103696086 A CN103696086 A CN 103696086A CN 201310696729 A CN201310696729 A CN 201310696729A CN 103696086 A CN103696086 A CN 103696086A
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- Prior art keywords
- polyester
- polyester slice
- screen cloth
- temperature
- yarn
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004744 fabric Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 229920000728 polyester Polymers 0.000 claims abstract description 97
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 39
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007790 solid phase Substances 0.000 claims abstract description 17
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000009987 spinning Methods 0.000 claims description 15
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 150000002829 nitrogen Chemical class 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 150000003504 terephthalic acids Chemical class 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 5
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Chemical class CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Woven Fabrics (AREA)
Abstract
The invention relates to a production method for stationery clamp screen cloth. The production method for the stationery clamp screen cloth sequentially comprises the following steps of (1) a step of producing polyester slices, namely, enabling terephthalic acid and ethylene glycol with the mass ratio of 1 to 2.5 to be formed into raw materials, polymerizing the terephthalic acid and the ethylene glycol into polyester materials under the temperature of 285 DEG C, enabling the intrinsic viscosity of the polyester materials to be 1.1 and processing the polyester materials into polyester slices; (2) a step of producing yarns, namely, performing pre-crystallization on the polyester slices through a pre-crystallizer, pre-heating the polyester slices through a preheater, performing solid-phase polymerization on the polyester slices through a solid-phase polymerization reaction device, melting the polyester slices through a screw extruder and a heating device and drafting and forming silk strips through a drafting winding machine; (3) a step of forming the screen cloth, namely, producing into the screen cloth through warp yarns, weft yarns and binding yarns. The production method for the stationery clamp screen cloth has the advantages of being simple in technology, enabling operation to be easy and enabling produced screen cloth to be high in intensity and good in toughness.
Description
Technical field
The present invention relates to a kind of manufacture method of screen cloth, especially relate to a kind of manufacture method of the screen cloth for file, the produced screen cloth of this manufacture method is exclusively used in file.
Background technology
Screen cloth, also referred to as base cloth, grid cloth, its tool has been widely used, and discloses the manufacture method of some screen cloths now, if open day is on December 07th, 2011, publication number is in the Chinese patent of CN102268817A, disclose a kind of PVC screen cloth and manufacture method thereof, the parts by weight of this each component of PVC screen cloth are: 70～100 parts of dioctyl phthalates, and PVC sticks with paste 100 parts of resins, 3 parts of stabilizing agents, CaCO
340～100 parts, 0～5 part of thinner; In this manufacture method, the scraper adopting is circular scraper, when its top of fabricbase process, can disposable slurry unnecessary on fabricbase be scraped totally, and make the not remaining slurry in the inside, hole, and high at slurry viscosity, during fabricbase thickening, also can scrape off unnecessary slurry, not need to adjust slurry and the thickness that reaches needs, to reduce the adjustment time.
But, because the purposes of screen cloth is different, the performance requirement of screen cloth is differed to larger, for example high for the screen cloth desired strength of file, good toughness, the current manufacture method that also there is no a kind of screen cloth for file.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and provide a kind of technique simple, processing ease, the intensity of manufacturing the screen cloth forming is high, the manufacture method of the screen cloth for file of good toughness.
The present invention addresses the above problem adopted technical scheme: be somebody's turn to do the manufacture method for the screen cloth of file, it is characterized in that: following steps, consist of successively:
(1) polyester slice manufacturing step: raw materials usedly formed by terephthalic acid (TPA) and ethylene glycol, the mass ratio of this terephthalic acid (TPA) and ethylene glycol is 1:2.5, described terephthalic acid (TPA) and ethylene glycol are at the temperature of 285 ℃, aggregate into polyester thing, the inherent viscosity of this polyester thing is 1.1, then polyester thing is processed into polyester slice;
(2) yarn manufacturing step: this yarn manufacturing step is as follows successively:
A, employing pre-crystallizer carry out pre-crystallized to polyester slice, gas used is air, the temperature of this air is 180 ℃, the holdup time of polyester slice is 20 minutes, after pre-crystallized, sloughed moisture content and the dust on polyester slice surface, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant;
B, employing preheater preheat polyester slice, gas used is nitrogen, the temperature of this nitrogen is 245 ℃, the holdup time of polyester slice is 8 hours, and after preheating, the acetaldehyde in polyester slice drops to 1ppm, removed the moisture of polyester slice inside, sloughed the dust on polyester slice surface completely, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant;
C, employing solid-phase polymerization device carry out solid phase to polyester slice, the holdup time of polyester slice is 20 hours, the temperature of solid phase is 260 ℃, gas used is nitrogen, the initial temperature of this nitrogen is 65 ℃, after solid phase, the acetaldehyde in polyester slice is less than 0.1ppm, and the inherent viscosity of polyester slice brings up to 1.3;
D, employing screw extruder and heater are by polyester slice melting, and the inlet temperature of screw extruder and outlet temperature are respectively 200 ℃ and 380 ℃, and the extrusion capacity of screw extruder is 450kg/h, can be for the polyester fluid of spinning thereby obtain;
E, employing spinning machine carry out spinning to polyester fluid, under the promotion of pressure, polyester fluid is extruded and forms strand at the temperature of 315 ℃, adopts temperature to be that cooling air that 30 ℃, wind speed are 0.45m/s carries out strand cooling, and the speed of spinning is 2500m/min;
F, employing draw winder carry out drafting forming to strand, in draw winder used, are provided with drawing roller, and the speed of drawing roller is 1500m/min, temperature is 70 ℃, by drafting forming, obtain intensity and be greater than 8N, and the thickness yarn that is 1000D, this yarn is used as warp thread and weft yarn;
(3) screen cloth forming step: adopt warp thread, weft yarn and tie up yarn to manufacture screen cloth, warp thread is all vertical shape structure, weft yarn is horizontal structure all, warp thread is connected by tying up yarn with weft yarn, the density of warp thread is 4.5 of per inch, the density of weft yarn is 4.5 of per inch, and the warp-wise of screen cloth and the intensity of broadwise are all greater than 92N.
Parameters in technique of the present invention organically combines, and makes to manufacture the screen cloth forming and is exclusively used in file, and the intensity of this screen cloth is high, good toughness, the intensity of warp-wise and broadwise is all greater than 92N, thereby can effectively improve the intensity of file, has extended the service life of file.
As preferably, in step of the present invention (2), the strand after counter extensioin sizing oils, to play lubricated and antistatic property.
The present invention compared with prior art, has the following advantages and effect: craft science, and processing ease, manufactures that the screen cloth intensity form is high, good toughness, is exclusively used in file, and this screen cloth can effectively improve the intensity of file, extends the service life of file.
In polyester slice manufacturing step of the present invention, the mass ratio of terephthalic acid (TPA) and ethylene glycol is 1:2.5, and terephthalic acid (TPA) and ethylene glycol are at the temperature of 285 ℃, and the inherent viscosity of polyester thing is 1.1.In yarn manufacturing step, adopting pre-crystallizer to carry out pre-crystallized, used gas to polyester slice is air, and the temperature of this air is 180 ℃, and the holdup time of polyester slice is 20 minutes; Adopt preheater to preheat polyester slice, gas used is nitrogen, and the temperature of this nitrogen is 245 ℃, and the holdup time of polyester slice is 8 hours; Adopt solid-phase polymerization device to carry out solid phase to polyester slice, the holdup time of polyester slice is 20 hours, and the temperature of solid phase is 260 ℃, and gas used is nitrogen, and the initial temperature of this nitrogen is 65 ℃; Adopt screw extruder and heater by polyester slice melting, the inlet temperature of screw extruder and outlet temperature are respectively 200 ℃ and 380 ℃, and the extrusion capacity of screw extruder is 450kg/h; Adopt spinning machine to carry out spinning to polyester fluid, polyester fluid is extruded and forms strand at the temperature of 315 ℃, adopts temperature to be that cooling air that 30 ℃, wind speed are 0.45m/s carries out strand cooling, and the speed of spinning is 2500m/min; Adopt draw winder to carry out drafting forming to strand, the speed of drawing roller is 1500m/min, and temperature is 70 ℃, by drafting forming, obtain intensity and be greater than 8N, and the thickness yarn that is 1000D.In screen cloth forming step, the density of warp thread is 4.5 of per inch, and the density of weft yarn is 4.5 of per inch, and the warp-wise of screen cloth and the intensity of broadwise are all greater than 92N.Above-mentioned technological parameter of the present invention is an organic whole, technological parameter in whole manufacture method just draws after paying creative work, be not to test and just can access by limited number of time, these technological parameters organically combine, and collaborative playing a role makes to manufacture the screen cloth forming and be exclusively used in file, with strong points, can be good at meeting that file requirement of strength is high, the requirement of good toughness, can effectively improve the intensity of file, extended the service life of file.
The specific embodiment
Below by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
Manufacture method for the screen cloth of file in the present embodiment is comprised of polyester slice manufacturing step, yarn manufacturing step and screen cloth forming step successively, and these steps are specific as follows.
(1) polyester slice manufacturing step: be raw materials usedly comprised of terephthalic acid (TPA) and ethylene glycol, the mass ratio of this terephthalic acid (TPA) and ethylene glycol is 1:2.5, this proportioning science, rationally, is conducive to improve the toughness of product.Terephthalic acid (TPA) and ethylene glycol, at the temperature of 285 ℃, aggregate into polyester thing, and the inherent viscosity of this polyester thing is 1.1, then polyester thing is processed into polyester slice.
(2) yarn manufacturing step is as follows successively.
A, employing pre-crystallizer carry out pre-crystallized to polyester slice, gas used is air, the temperature of this air is 180 ℃, the holdup time of polyester slice is 20 minutes, after pre-crystallized, sloughed moisture content and the dust on polyester slice surface, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant.
B, employing preheater preheat polyester slice, gas used is nitrogen, the temperature of this nitrogen is 245 ℃, the holdup time of polyester slice is 8 hours, and after preheating, the acetaldehyde in polyester slice drops to 1ppm, removed the moisture of polyester slice inside, sloughed the dust on polyester slice surface completely, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant.
C, employing solid-phase polymerization device carry out solid phase to polyester slice, the holdup time of polyester slice is 20 hours, the temperature of solid phase is 260 ℃, gas used is nitrogen, the initial temperature of this nitrogen is 65 ℃, after solid phase, the acetaldehyde in polyester slice is less than 0.1ppm, and the inherent viscosity of polyester slice brings up to 1.3.
D, employing screw extruder and heater are by polyester slice melting, and the inlet temperature of screw extruder and outlet temperature are respectively 200 ℃ and 380 ℃, and the extrusion capacity of screw extruder is 450kg/h, can be for the polyester fluid of spinning thereby obtain;
E, employing spinning machine carry out spinning to polyester fluid, under the promotion of pressure, polyester fluid is extruded and forms strand at the temperature of 315 ℃, adopts temperature to be that cooling air that 30 ℃, wind speed are 0.45m/s carries out strand cooling, and the speed of spinning is 2500m/min.
F, employing draw winder carry out drafting forming to strand, in draw winder used, are provided with drawing roller, and the speed of drawing roller is 1500m/min, temperature is 70 ℃, by drafting forming, obtain intensity and be greater than 8N, and the thickness yarn that is 1000D, this yarn is used as warp thread and weft yarn.The present invention also can counter extensioin strand after sizing oil, to play lubricated and antistatic property.
(3) screen cloth forming step: adopt warp thread, weft yarn and tie up yarn to manufacture screen cloth, warp thread is all vertical shape structure, weft yarn is horizontal structure all, warp thread is connected by tying up yarn with weft yarn, the density of warp thread is 4.5 of per inch, the density of weft yarn is 4.5 of per inch, and the warp-wise of screen cloth and the intensity of broadwise are all greater than 92N.
Of the present invention with strong points, purpose is clear and definite, manufacture a kind of screen cloth being exclusively used in file, high to meet file requirement of strength, the requirement of good toughness, polyester slice manufacturing step of the present invention, the technological parameter using in yarn manufacturing step and screen cloth forming step is an organic whole, technological parameter in whole manufacture method just draws after paying creative work, the screen cloth forming by manufacture of the present invention is exclusively used in file, can effectively improve the intensity of file, improve the toughness of file, effectively extend the service life of file.
Equipment used in the present invention is all same as the prior art or close, so locate no longer relevant device to be described.
Although the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technical staff who is familiar with this technology, not departing from change and the retouching of doing in the spirit and scope of the present invention, all should belong to protection scope of the present invention.
Claims (2)
1. for a manufacture method for the screen cloth of file, it is characterized in that: by following steps, formed successively:
(1) polyester slice manufacturing step: raw materials usedly formed by terephthalic acid (TPA) and ethylene glycol, the mass ratio of this terephthalic acid (TPA) and ethylene glycol is 1:2.5, described terephthalic acid (TPA) and ethylene glycol are at the temperature of 285 ℃, aggregate into polyester thing, the inherent viscosity of this polyester thing is 1.1, then polyester thing is processed into polyester slice;
(2) yarn manufacturing step: this yarn manufacturing step is as follows successively:
A, employing pre-crystallizer carry out pre-crystallized to polyester slice, gas used is air, the temperature of this air is 180 ℃, the holdup time of polyester slice is 20 minutes, after pre-crystallized, sloughed moisture content and the dust on polyester slice surface, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant;
B, employing preheater preheat polyester slice, gas used is nitrogen, the temperature of this nitrogen is 245 ℃, the holdup time of polyester slice is 8 hours, and after preheating, the acetaldehyde in polyester slice drops to 1ppm, removed the moisture of polyester slice inside, sloughed the dust on polyester slice surface completely, and polyester slice is not hydrolyzed, and the inherent viscosity of polyester slice is constant;
C, employing solid-phase polymerization device carry out solid phase to polyester slice, the holdup time of polyester slice is 20 hours, the temperature of solid phase is 260 ℃, gas used is nitrogen, the initial temperature of this nitrogen is 65 ℃, after solid phase, the acetaldehyde in polyester slice is less than 0.1ppm, and the inherent viscosity of polyester slice brings up to 1.3;
D, employing screw extruder and heater are by polyester slice melting, and the inlet temperature of screw extruder and outlet temperature are respectively 200 ℃ and 380 ℃, and the extrusion capacity of screw extruder is 450kg/h, can be for the polyester fluid of spinning thereby obtain;
E, employing spinning machine carry out spinning to polyester fluid, under the promotion of pressure, polyester fluid is extruded and forms strand at the temperature of 315 ℃, adopts temperature to be that cooling air that 30 ℃, wind speed are 0.45m/s carries out strand cooling, and the speed of spinning is 2500m/min;
F, employing draw winder carry out drafting forming to strand, in draw winder used, are provided with drawing roller, and the speed of drawing roller is 1500m/min, temperature is 70 ℃, by drafting forming, obtain intensity and be greater than 8N, and the thickness yarn that is 1000D, this yarn is used as warp thread and weft yarn;
(3) screen cloth forming step: adopt warp thread, weft yarn and tie up yarn to manufacture screen cloth, warp thread is all vertical shape structure, weft yarn is horizontal structure all, warp thread is connected by tying up yarn with weft yarn, the density of warp thread is 4.5 of per inch, the density of weft yarn is 4.5 of per inch, and the warp-wise of screen cloth and the intensity of broadwise are all greater than 92N.
2. the manufacture method of the screen cloth for file according to claim 1, is characterized in that: in described step (2), the strand after counter extensioin sizing oils, to play lubricated and antistatic property.
Priority Applications (1)
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| CN201310696729.2A CN103696086B (en) | 2013-12-18 | 2013-12-18 | Production method for stationery clamp screen cloth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831465A (en) * | 2015-05-06 | 2015-08-12 | 福建省晋江市华宇织造有限公司 | Bacteriostatic warmth retention composite functional screen cloth and manufacturing method thereof |
| CN105040224A (en) * | 2015-07-08 | 2015-11-11 | 苏州煜伟纺织有限公司 | Method and device for preparing warp yarns |
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| CN103696086B (en) | 2014-12-24 |
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Address after: Tongxiang City, Jiaxing City, Zhejiang province 314503 Tu Dian Zhen Shuguang Road No. 28 Patentee after: ZHEJIANG MINGLONG FABRIC CO., LTD. Address before: Tongxiang City, Jiaxing City, Zhejiang province 314503 Tu Dian Zhen Shuguang Road No. 28 Patentee before: ZHEJIANG MINGLONG BASE FABRIC CO., LTD. |