CN102943313A - Production process of nylon-6 - Google Patents
Production process of nylon-6 Download PDFInfo
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- CN102943313A CN102943313A CN2012104589158A CN201210458915A CN102943313A CN 102943313 A CN102943313 A CN 102943313A CN 2012104589158 A CN2012104589158 A CN 2012104589158A CN 201210458915 A CN201210458915 A CN 201210458915A CN 102943313 A CN102943313 A CN 102943313A
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Abstract
The invention discloses a production process of nylon-6 which is produced by taking polycaprolactam slices as raw material and water reducing agent, defoamer, antistatic agent, functional master batches and oiling agent as auxiliary materials through the steps of material loading, fusing, spinning, recovering, oiling, separating and winding. By adopting one-line multi-site injection technique to produce the nylon-6 on a flexible production line, the invention enables the additive components of the nylon-6 to be more uniform, enables the nylon-6 to be more permanent in function, the high-grade rate and the yield of the nylon-6 are effectively improved and the cost is reduced. The water reducing agent, the defoamer and the antistatic agent are added into the raw material, so the property of the finished nylon-6 is improved, the strength of the nylon-6 is enhanced, the nylon-6 is more wear-resistant and softer, and the handle and the comfort of the finished nylon-6 are effectively improved. Moreover, in the fusing process during the production, the raw material goes through six processing areas to be processed, so the fusing effect is better and the strength of the nylon-6 is higher; and a recovery plant is added to recover the monomers and low polymers, so the production process realizes zero-discharge and is more environment-friendly.
Description
[technical field]
The present invention relates to the technical field that polyamide fibre is produced, particularly the technical field of polyamide fibre 6 productions.
The principal item of [background technology] polyamide fibre is the fatty polyamide fiber, it can be synthetic by a kind of monomer, such as lactam or amino acid, the Arabic numerals after the polyamide fibre title namely show used lactam or amino acid whose carbon atom number at this moment, such as polyamide fibre 6, polyamide fibre 11 etc.; Also can be synthetic by two kinds of monomers, be a kind of diamine and a kind of binary acid, at this moment in two groups of Arabic numerals after the polyamide fibre title, first group of carbon atom number that represents diamine, second group of carbon atom number that represents binary acid, such as polyamide fibre 66, polyamide fibre 610, polyamide fibre 1010 etc., in general, be difficult to distinguish polyamide fibre 6 and polyamide fibre 66 from the surface, polyamide fibre 6 products have high strength, wear-resisting, the characteristics such as flexibility and skin sense of touch gentleness, be widely used in clothes, silk, umbrella, the fishnet silk, cord fabric thread, the fields such as BCF carpet silk and engineering plastics, have wide purposes, and in recent years, China accelerates obviously to the market demand increasing degree of chinlon 6 section, but polyamide fibre 6 is compared with polyamide fibre 66, and feel and comfortableness are all relatively poor.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes a kind of production technology of polyamide fibre 6, can produce good hand touch, and comfortableness is good, the polyamide fibre 6 that intensity is high, wear-resisting.
For achieving the above object, the present invention proposes a kind of production technology of polyamide fibre 6, may further comprise the steps successively:
A) material loading: with polycaprolactam section, deicer, defoamer, antistatic agent deliver to the section feed intake between, then under the protection of nitrogen, by gravity fall to chip bunker, drop in the storage vat of chip bunker after filtering through the screen pack in the chip bunker again, wherein, press polycaprolactam section weighing scale, add deicer 1～5%, add defoamer 0.1～0.5%, add antistatic agent 0.1～0.9%;
B) melting: will be through A) raw material of step falls into screw extruder, and adds functional master batch, carries out melt process through six processing districts, and a processing district is the thermal treatment zone, and temperature is 230～250 ℃; No. two processing districts are the heat-insulating pressurizing district, and temperature is 200～220 ℃, and pressure is 1000～1200N; No. three processing districts are the thermal treatment zone, and temperature is 240～260 ℃; No. four processing districts are the heat-insulating pressurizing district, and temperature is 210～230 ℃, and pressure is 1100～1300N; No. five processing districts are the thermal treatment zone, and temperature is 230～250 ℃; No. six processing districts are the heat-insulating pressurizing district, and temperature is 210～230 ℃, and pressure is 1000～1200N, makes raw material become molten;
C) spinning: will be through B) material extruding of melt process is to fondant filter, filter bad thing, then enter in the manifold casing via melt distribution line, then measure via the spinning pump in the casing, then pass through the filter course of filament spinning component, from spinneret orifice, extrude, form the melt thread, form strand through the air cooling;
D) reclaim: with C) in the step on the spinnerets residual monomer and oligomer extract out through the water jet circulating system via monomer pumping device, deliver to the MONOMER RECOVERY device;
E) oil: to through C) strand of step process oils, by oil agent metering pump with finish in the aperture of ceramic fuel injection nozzle to the strand ejection, the strand after oiling is from the path out;
F) separate: will be from the path out strand separates through some ceramic rods, then through pre-Network device and conductive filament roller, be wound on the bobbin by the high-speed winding device at last, obtain half product thread;
G) coiling and molding: partly the product silk is wound into cylinder through the hot-rolling drawing-off at winding head and namely obtains finished silk, rolls up simultaneously 10～14 silk cylinders on described each winding head, and is reeled the time by the doff Timer Controlling.
As preferably, described A) presses polycaprolactam section weighing scale in the step, add deicer 3%, add defoamer 0.3%, add antistatic agent 0.5%, described antistatic agent is fatty alcohol-polyoxyethylene ether, and described defoamer is dimethyl silicone polymer, described B) functional master batch in the step is antibiotic, uvioresistant, antistatic master granule.
As preferably, described B) temperature of a processing district is 240 ℃ in the step; The temperature of No. two processing districts is 210 ℃, and pressure is 1100N; The temperature of No. three processing districts is 250 ℃; The temperature of No. four processing districts is 220 ℃, and pressure is 1200N; The temperature of No. five processing districts is 240 ℃; The temperature of No. six processing districts is 220 ℃, and pressure is 1200N.
As preferably, described C) the pore quantity on the spinnerets is 24 or 48 in the step, and the aperture of described pore is 0.18～0.22mm.
As preferably, described E) in the step, the quality of finish is 0.1～1% of polycaprolactam chipping qualities.
As preferably, described F) distance between per two ceramic rods is 0.15～0.19mm in the step.
As preferably, described G) rolls up simultaneously 12 silk cylinders on each winding head in the step.
Beneficial effect of the present invention: the present invention produces product by the line multidigit injection technique in the flexible production line, make product interpolation component more even, function is more permanent, the excellence rate of Effective Raise product and row yielding, and reduction cost, in raw material, add deicer, defoamer, antistatic agent, thus polyamide fibre 6 end properties improved, improve the intensity of polyamide fibre 6, make polyamide fibre 6 more wear-resisting, more soft, and the feel of Effective Raise finished product and comfortableness, in addition, in process of production, in the melting step, raw material is processed the melting better effects if through six layers of processing district, the intensity of polyamide fibre 6 is higher, and increase retracting device recovery monomer and oligomer, accomplish zero-emission, more environmental protection.
Feature of the present invention and advantage will be elaborated by embodiment.
[specific embodiment]
The production technology of a kind of polyamide fibre 6 of the present invention may further comprise the steps:
A) material loading: with polycaprolactam section, deicer, defoamer, antistatic agent deliver to the section feed intake between, then under the protection of nitrogen, by gravity fall to chip bunker, screen pack in advancing chip bunker drops in the storage vat of chip bunker after filtering, wherein, press polycaprolactam section weighing scale, add deicer 3%, add defoamer 0.3%, add antistatic agent 0.5%;
B) melting: will be through A) raw material of step falls into screw extruder, and adds functional master batch, carries out melt process through six processing districts, and a processing district is the thermal treatment zone, and temperature is 240 ℃; No. two processing districts are the heat-insulating pressurizing district, and temperature is 210 ℃, and pressure is 1100N; No. three processing districts are the thermal treatment zone, and temperature is 250 ℃; No. four processing districts are the heat-insulating pressurizing district, and temperature is 220 ℃, and pressure is 1200N; No. five processing districts are the thermal treatment zone, and temperature is 240 ℃; No. six processing districts are the heat-insulating pressurizing district, and temperature is 220 ℃, and pressure is 1100N, makes raw material become molten;
C) spinning: will be through B) material extruding of melt process is to fondant filter, filter bad thing, then enter in the manifold casing via melt distribution line, inject by a line multidigit, via the metering of the spinning pump in the casing, then pass through the filter course of filament spinning component, from a plurality of spinneret orifices, extrude, form many group melt threads, form strand through the air cooling;
D) reclaim: with C) in the step on the spinnerets residual monomer and oligomer extract out through the water jet circulating system via monomer pumping device, deliver to the MONOMER RECOVERY device;
E) oil: to through C) strand of step process oils, by oil agent metering pump with finish in the aperture of ceramic fuel injection nozzle to the strand ejection, the strand after oiling is from the path out;
F) separate: will be from the path out strand separates through some ceramic rods, then through pre-Network device and conductive filament roller, be wound on the bobbin by the high-speed winding device at last, obtain half product thread;
G) coiling and molding: partly the product silk is wound into cylinder through the hot-rolling drawing-off at winding head and namely obtains finished silk, rolls up simultaneously 12 silk cylinders on described each winding head, and is reeled the time by the doff Timer Controlling.
Described deicer is deicer ALT-201, it is a oxazolidine deicer that Anxiang Ai Li specialization worker Co., Ltd releases, antistatic agent is fatty alcohol-polyoxyethylene ether, described defoamer is dimethyl silicone polymer, described B) the functional master batch in the step is antibiotic, uvioresistant, antistatic master granule, described C) the pore quantity on the spinnerets is 24 or 48 in the step, the aperture of described pore is 0.2mm, described E) in the step, the quality of finish is 0.5% of polycaprolactam chipping qualities, described F) distance between per two ceramic rods is 0.17mm in the step, and 6 on the polyamide fibre that causes to fall and break by ceramic rod directly is divided into tow, is convenient to reel.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (7)
1. the production technology of a polyamide fibre 6 is characterized in that: may further comprise the steps successively:
A) material loading: with polycaprolactam section, deicer, defoamer, antistatic agent deliver to the section feed intake between, then under the protection of nitrogen, by gravity fall to chip bunker, drop in the storage vat of chip bunker after filtering through the screen pack in the chip bunker again, wherein, press polycaprolactam section weighing scale, add deicer 1～5%, add defoamer 0.1～0.5%, add antistatic agent 0.1～0.9%;
B) melting: will be through A) raw material of step falls into screw extruder, and adds functional master batch, carries out melt process through six processing districts, and a processing district is the thermal treatment zone, and temperature is 230～250 ℃; No. two processing districts are the heat-insulating pressurizing district, and temperature is 200～220 ℃, and pressure is 1000～1200N; No. three processing districts are the thermal treatment zone, and temperature is 240～260 ℃; No. four processing districts are the heat-insulating pressurizing district, and temperature is 210～230 ℃, and pressure is 1100～1300N; No. five processing districts are the thermal treatment zone, and temperature is 230～250 ℃; No. six processing districts are the heat-insulating pressurizing district, and temperature is 210～230 ℃, and pressure is 1000～1200N, makes raw material become molten;
C) spinning: will be through B) material extruding of melt process is to fondant filter, filter bad thing, then enter in the manifold casing via melt distribution line, then measure via the spinning pump in the casing, then pass through the filter course of filament spinning component, from spinneret orifice, extrude, form the melt thread, form strand through the air cooling;
D) reclaim: with C) in the step on the spinnerets residual monomer and oligomer extract out through the water jet circulating system via monomer pumping device, deliver to the MONOMER RECOVERY device;
E) oil: to through C) strand of step process oils, by oil agent metering pump with finish in the aperture of ceramic fuel injection nozzle to the strand ejection, the strand after oiling is from the path out;
F) separate: will be from the path out strand separates through some ceramic rods, then through pre-Network device and conductive filament roller, be wound on the bobbin by the high-speed winding device at last, obtain half product thread;
G) coiling and molding: partly the product silk is wound into cylinder through the hot-rolling drawing-off at winding head and namely obtains finished silk, rolls up simultaneously 10～14 silk cylinders on described each winding head, and is reeled the time by the doff Timer Controlling.
2. the production technology of a kind of polyamide fibre 6 as claimed in claim 1, it is characterized in that: described A) press polycaprolactam section weighing scale in the step, add deicer 3%, add defoamer 0.3%, add antistatic agent 0.5%, described antistatic agent is fatty alcohol-polyoxyethylene ether, and described defoamer is dimethyl silicone polymer, described B) functional master batch in the step is antibiotic, uvioresistant, antistatic master granule.
3. the production technology of a kind of polyamide fibre 6 as claimed in claim 1, it is characterized in that: described B) temperature of a processing district is 240 ℃ in the step; The temperature of No. two processing districts is 210 ℃, and pressure is 1100N; The temperature of No. three processing districts is 250 ℃; The temperature of No. four processing districts is 220 ℃, and pressure is 1200N; The temperature of No. five processing districts is 240 ℃; The temperature of No. six processing districts is 220 ℃, and pressure is 1200N.
4. the production technology of a kind of polyamide fibre 6 as claimed in claim 1, it is characterized in that: described C) the pore quantity on the spinnerets is 24 or 48 in the step, the aperture of described pore is 0.18～0.22mm.
5. the production technology of a kind of polyamide fibre 6 as claimed in claim 1, it is characterized in that: described E) in the step, the quality of finish is 0.1～1% of polycaprolactam chipping qualities.
6. the production technology of a kind of polyamide fibre 6 as claimed in claim 1, it is characterized in that: described F) distance between per two ceramic rods is 0.15～0.19mm in the step.
7. such as the production technology of each described a kind of polyamide fibre 6 in the claim 1 to 6, it is characterized in that: described G) roll up simultaneously 12 silk cylinders in the step on each winding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458915.8A CN102943313B (en) | 2012-11-14 | 2012-11-14 | Production process of nylon-6 |
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| CN201210458915.8A CN102943313B (en) | 2012-11-14 | 2012-11-14 | Production process of nylon-6 |
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| CN102943313A true CN102943313A (en) | 2013-02-27 |
| CN102943313B CN102943313B (en) | 2015-04-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590165A (en) * | 2013-10-14 | 2014-02-19 | 吴江市巨诚喷织有限公司 | Production process of polyamide fiber fabric |
| CN104060337A (en) * | 2013-03-19 | 2014-09-24 | 浙江美丝邦化纤有限公司 | Functional chinlon 6 colored fiber and manufacturing method thereof |
| CN104674366A (en) * | 2015-02-11 | 2015-06-03 | 浙江益南纤维科技有限公司 | Polyamide yarn production technology |
| CN106283336A (en) * | 2016-08-08 | 2017-01-04 | 福建万鸿纺织有限公司 | A kind of antibacterial comfortable nylon fabric and preparation method thereof |
| CN106676664A (en) * | 2016-08-31 | 2017-05-17 | 浙江金旗新材料科技有限公司 | Flame-retardant and wear-resistant type chinlon 6 pre-oriented yarn |
| CN106978634A (en) * | 2016-08-31 | 2017-07-25 | 浙江金旗新材料科技有限公司 | A kind of warming preoriented yarn of wear-resisting type polyamide fibre 6 |
| CN106978636A (en) * | 2016-08-31 | 2017-07-25 | 浙江金旗新材料科技有限公司 | A kind of warming high oriented yarn of wear-resisting type polyamide fibre 6 |
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| CN102181951A (en) * | 2011-04-26 | 2011-09-14 | 常熟涤纶有限公司 | Processing method of high-strength low-shrinkage nylon 6 fine denier filament |
| CN102586907A (en) * | 2012-03-04 | 2012-07-18 | 江苏德赛化纤有限公司 | Production method of inflaming retarding hollow polyster fiber |
| CN102747438A (en) * | 2012-06-28 | 2012-10-24 | 浙江台华新材料股份有限公司 | Production method for 20D/24F complete-extinction nylon 6 fully-drawn yarn |
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| CN102181951A (en) * | 2011-04-26 | 2011-09-14 | 常熟涤纶有限公司 | Processing method of high-strength low-shrinkage nylon 6 fine denier filament |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060337A (en) * | 2013-03-19 | 2014-09-24 | 浙江美丝邦化纤有限公司 | Functional chinlon 6 colored fiber and manufacturing method thereof |
| CN103590165A (en) * | 2013-10-14 | 2014-02-19 | 吴江市巨诚喷织有限公司 | Production process of polyamide fiber fabric |
| CN104674366A (en) * | 2015-02-11 | 2015-06-03 | 浙江益南纤维科技有限公司 | Polyamide yarn production technology |
| CN106283336A (en) * | 2016-08-08 | 2017-01-04 | 福建万鸿纺织有限公司 | A kind of antibacterial comfortable nylon fabric and preparation method thereof |
| CN106283336B (en) * | 2016-08-08 | 2018-04-10 | 福建万鸿纺织有限公司 | A kind of comfortable nylon fabric of antibacterial and preparation method thereof |
| CN106676664A (en) * | 2016-08-31 | 2017-05-17 | 浙江金旗新材料科技有限公司 | Flame-retardant and wear-resistant type chinlon 6 pre-oriented yarn |
| CN106978634A (en) * | 2016-08-31 | 2017-07-25 | 浙江金旗新材料科技有限公司 | A kind of warming preoriented yarn of wear-resisting type polyamide fibre 6 |
| CN106978636A (en) * | 2016-08-31 | 2017-07-25 | 浙江金旗新材料科技有限公司 | A kind of warming high oriented yarn of wear-resisting type polyamide fibre 6 |
| CN106978634B (en) * | 2016-08-31 | 2019-05-03 | 浙江金旗新材料科技有限公司 | A kind of warming 6 preoriented yarn of wear-resisting type polyamide fibre |
| CN106676664B (en) * | 2016-08-31 | 2019-07-09 | 浙江金旗新材料科技有限公司 | A kind of 6 preoriented yarn of flame-proof abrasion-resistant type polyamide fibre |
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| Publication number | Publication date |
|---|---|
| CN102943313B (en) | 2015-04-15 |
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Denomination of invention: Production process of nylon-6 Effective date of registration: 20171129 Granted publication date: 20150415 Pledgee: Changxin Zhejiang rural commercial bank Limited by Share Ltd Pledgor: Zhejiang Yinan Fiber Technology Co., Ltd. Registration number: 2017980000542 |
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Effective date of registration: 20190605 Address after: 313100 No. 1 Fuqian Street, Sian Town Industrial Zone, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Century Morning Star Fiber Technology Co., Ltd. Address before: 313113 Fuqian Road of Sian Town Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Yinan Fiber Technology Co., Ltd. |
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