CN102011203A - Method for producing hollow PP (propene polymer) yarn by utilizing circular hole spinneret plate - Google Patents
Method for producing hollow PP (propene polymer) yarn by utilizing circular hole spinneret plate Download PDFInfo
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- CN102011203A CN102011203A CN 201110006794 CN201110006794A CN102011203A CN 102011203 A CN102011203 A CN 102011203A CN 201110006794 CN201110006794 CN 201110006794 CN 201110006794 A CN201110006794 A CN 201110006794A CN 102011203 A CN102011203 A CN 102011203A
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Abstract
The invention discloses a method for producing hollow PP (propene polymer) yarn by utilizing a circular hole spinneret plate. Spinning raw materials are subject to melting and extrusion by virtue of a screw extruder, and filament is extruded by the jet circular hole of a spinning machine, then the filament is processed into a hollow PP yarn, and the screw extruder is connected with a spinning machine box into a whole by virtue of a flange, Wherein the screw melting spinning temperature of a first area is controlled to be 210-220 DEG C, the temperature of a second area is controlled to be 255-268 DEG C, the temperatures of a third area and the temperature of a fourth area are controlled to be 265-278 DEG C, the temperature of a fifth area is controlled to be 268-275 DEG C, the temperature of a flange area is controlled to be 240-250 DEG C, and the temperature of the spinning machine box is controlled to be 238-248 DEG C. The hollow PP yarn produced by adopting the scheme provided by the invention has the advantages of good abrasion performance, less thermal contraction, uniform fineness and the like, the rejection rate is controlled to be less than 5%, and the knitting product quality reaches the national standard or industrial standard.
Description
Technical field
The present invention discloses a kind of method of utilizing ring circular hole spinnerets to produce hollow PP yarn, divides by International Patent Classification (IPC) (IPC) to belong to chemical industry fibre spinning shaping manufacturing technology field.
Background technology
The pp yarn is also referred to as polypropylene staple fibre spun yarn or the general strong silk of polypropylene fibre, the ribbon and the rope that are made into the pp yarn can be used for all kinds of clothes, the case and bag band, sports goods, shoestring, mobile phone suspender belt or the like, the band that the polypropylene fibre dyed yarn of property is made into can be used as car belt, mountain-climbing, the safety belt that high-altitude and operation on the sea are used, gas car bundling belt etc., the general strong silk regular size of pp yarn/polypropylene staple fibre spun yarn/polypropylene fibre is 300D at present, 450D, 600D, 900D, 1000D etc., PP yarn commonly used can be divided into solid yarn and hollow yarn, the hollow yarn purpose is to obtain some special nature, thereby change the wearability of fabric, and, hollow fibre has light weight, warming, ray and do not show characteristics such as dust is subjected to the favor of manufacturer in the industry.From technological angle, produce hollow PP yarn and solid yarn step is basic identical, all be gong bar melt extruded, and extrude by the spinneret orifice of spinning equipment and to form long filament that reprocessing forms the PP yarn through batching, the equipment that reels off raw silk from cocoons.Yet the hollow yarn percent defective that existing spinning forms is up to more than 20%, and the braiding end product quality is not up to standard, and especially pulling force is lower, and the PP yarn was lower than for 2.0 gram/dawn, can not reach country or industry standard.The key that causes appearance the problems referred to above of hollow PP yarn is that the processing of raw material melt temperature link is not in place in spinning the hollow yarn process, makes the mobile unreasonable of raw material, does not reach the performance requirement that spins hollow yarn.
Chinese patent literature CN101736416A discloses the preparation technology of a kind of thin dawn and superfine denier polypropylene fibers, the fusing point of silk PP Pipe Compound is 165 ℃～175 ℃, in spinning equipment, the single screw extrusion machine extrusion molten, melt evenly flows, and through the circular or special-shaped spinneret orifice spray of manifold spinnerets silk, the tow cooling oils, carry out hot drawing-off and coiling again, obtain the thin dawn and the superfine denier polypropylene fibers at 0.5～2 dawn at last.The document is to make solid slim dawn and superfine denier polypropylene fibers, disclosure be a kind of solid yarn production process, still can not produce the hollow PP yarn that meets the standard of reaching according to its technology.
The inventor is through studying for a long period of time and in conjunction with PP yarn spinning practical experience, creates a kind of method of the novel hollow PP yarn of production, so proposition of the present invention is just arranged.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of method of utilizing ring circular hole spinnerets to produce hollow PP yarn, the PP yarn pulling force of production is up to state standards.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of method of utilizing ring circular hole spinnerets to produce hollow PP yarn, be the melt extruded of spinning material through gong bar extruder, and extrude long filament by the spray silk ring circular hole of spinning machine, reprocessing forms hollow PP yarn, above-mentioned gong bar extruder is interior by gong bar melt spinning one district, two districts, three districts, He Wu district, four districts forms, gong bar extruder connects as one by flange and spinning machine casing, 210 ℃～220 ℃ in wherein said gong bar spinning temperature one district, 255 ℃～268 ℃ of two districts temperature controls, 265 ℃～278 ℃ of three districts He Si district temperature controls, 268 ℃～275 ℃ of five districts temperature controls, 240 ℃～250 ℃ of flange district temperature controls, 238 ℃～248 ℃ of spinning machine spin manifold temperature controls.
Further, 215 ℃ in described gong bar spinning temperature one district, 268 ℃ of two districts temperature controls, 278 ℃ of three districts temperature controls, 272 ℃ of four districts temperature controls, 275 ℃ of five districts temperature controls, 250 ℃ of flange district temperature controls, 240 ℃ of spinning machine spin manifold temperature controls.
Further, described spray silk ring circular hole is the some ring circular holes that are arranged on the hollow spinnerets, and circular diameter is 2.04 ㎜ in it, outside diameter 2.46 ㎜, ring wall thickness 0.21 ㎜.
The present invention is because hollow yarn and solid yarn are distinguished is along the setting of axis direction hollow, therefore the spinneret orifice of spinning equipment is set to encircle circular hole, and the crux that utilizes hollow spinnerets to produce hollow yarn is that the clean and the spinning production technology gong bar of spinnerets respectively distinguished temperature controlling.The clean of spinnerets is to guarantee that spray silk ring circular hole is unobstructed state; Spin melt temperature in the hollow yarn process, mobile difficult with control, adopt the solution of the present invention, percent defective is controlled in 5%, the braiding end product quality is up to standard, the hollow PP yarn pulling force of producing is more than 3.0 gram/dawn, reach country or industry standard, have advantages such as ABRASION RESISTANCE is good, anti-aging, thermal contraction is little, fiber number is even.
The specific embodiment
Embodiment: a kind of method of utilizing ring circular hole spinnerets to produce hollow PP yarn, melt extruded through gong bar extruder, and extrude long filament by the spray silk ring circular hole of spinning machine, reprocessing forms hollow PP yarn, above-mentioned gong bar extruder is interior by gong bar melt spinning one district, two districts, three districts, He Wu district, four districts forms, gong bar extruder connects as one by flange and spinning machine casing, 210 ℃～220 ℃ in wherein said gong bar spinning temperature one district, 255 ℃～268 ℃ of two districts temperature controls, 265 ℃～278 ℃ of three districts He Si district temperature controls, 268 ℃～275 ℃ of five districts temperature controls, 240 ℃～250 ℃ of flange district temperature controls, 238 ℃～248 ℃ of spinning machine spin manifold temperature controls, described spray silk ring circular hole is the some ring circular holes that are arranged on the hollow spinnerets, circular diameter is 2.04 ㎜ in it, outside diameter 2.46 ㎜, ring wall thickness 0.21 ㎜.
As preferably, spin in the hollow yarn process: 215 ℃ in described gong bar spinning temperature one district, 268 ℃ of two districts temperature controls, 278 ℃ of three districts temperature controls, 272 ℃ of four districts temperature controls, 275 ℃ of five districts temperature controls, 250 ℃ of flange district temperature controls, 240 ℃ of spinning machine spin manifold temperature controls.
The present invention utilizes hollow spinnerets to produce the crux of hollow yarn: the clean of spinnerets and spinning production technology gong bar are respectively distinguished temperature controlling.
1, produces preceding clean to hollow spinnerets
A, the hollow spinnerets that changes must burn 6 hours through calcining furnace, and furnace temperature is set 400 ℃.
B, spinnerets wash with water earlier totally after coming out of the stove and cooling off, and put in the ultrasonic wave service sink to surpass 10-12 hours again.Fill 1% acetic acid aqueous solution in the ultrasonic wave service sink and soak spinnerets.
C, spinnerets be super wash finish after, take out with the tracheae venting blowing, pour with magnifying glass then and see, detect the ring circular hole of obstruction, examine the plate pin with diameter 0.2 ㎜ and drive logical.
2, hollow spinnerets spins the air silk process, and the gong bar is respectively distinguished the setting of temperature:
Spin hollow yarn requirement melt temperature, mobile than common yarn height, usually than common high 10 ℃/district, i.e. gong bar spinning temperature: 220 ℃ in a district, 268 ℃ in two districts, 278 ℃ in three districts, 272 ℃ in four districts, 275 ℃ in five districts, 250 ℃ in flange district, 240 ℃ of casings.In the production process, must keep the spinning plate surface cleaning, have askew yarn plate hole, can not be stifled with pencil, must change plate and handle.
3, produce in the hollow yarn process, fiber number is adjusted into 720D and is equivalent to common 900D yarn thickness degree, that is to say that the common yarn of 720D hollow yarn and 900D knits the same specification ribbon, and thickness is the same.
The hollow PP yarn that adopts the solution of the present invention to produce, percent defective is controlled in 5%, and the braiding end product quality is up to standard, and the hollow PP yarn pulling force of production is more than 3.4 gram/dawn, reach country or industry standard, have advantages such as ABRASION RESISTANCE is good, anti-aging, thermal contraction is little, fiber number is even.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (3)
1. one kind is utilized the method that the circular hole spinnerets is produced hollow PP yarn of encircling, it is characterized in that: spinning material is through the melt extruded of gong bar extruder, and extrude long filament by the spray silk ring circular hole of spinning machine, reprocessing forms hollow PP yarn, above-mentioned gong bar extruder is interior by gong bar melt spinning one district, two districts, three districts, He Wu district, four districts forms, gong bar extruder connects as one by flange and spinning machine casing, 210 ℃～220 ℃ in wherein said gong bar spinning temperature one district, 255 ℃～268 ℃ of two districts temperature controls, 265 ℃～278 ℃ of three districts He Si district temperature controls, 268 ℃～275 ℃ of five districts temperature controls, 240 ℃～250 ℃ of flange district temperature controls, 238 ℃～248 ℃ of spinning machine spin manifold temperature controls.
2. the method for producing hollow PP yarn according to the described utilization ring of claim circular hole spinnerets, it is characterized in that: 215 ℃ in described gong bar spinning temperature one district, 268 ℃ of two districts temperature controls, 278 ℃ of three districts temperature controls, 272 ℃ of four districts temperature controls, 275 ℃ of five districts temperature controls, 250 ℃ of flange district temperature controls, 240 ℃ of spinning machine spin manifold temperature controls.
3. the method for producing hollow PP yarn according to the described utilization ring of claim circular hole spinnerets, it is characterized in that: described spray silk ring circular hole is the some ring circular holes that are arranged on the hollow spinnerets, circular diameter is 2.04 ㎜ in it, outside diameter 2.46 ㎜, ring wall thickness 0.21 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110006794 CN102011203A (en) | 2011-01-13 | 2011-01-13 | Method for producing hollow PP (propene polymer) yarn by utilizing circular hole spinneret plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110006794 CN102011203A (en) | 2011-01-13 | 2011-01-13 | Method for producing hollow PP (propene polymer) yarn by utilizing circular hole spinneret plate |
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| CN102011203A true CN102011203A (en) | 2011-04-13 |
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| CN 201110006794 Pending CN102011203A (en) | 2011-01-13 | 2011-01-13 | Method for producing hollow PP (propene polymer) yarn by utilizing circular hole spinneret plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668492A (en) * | 2013-11-30 | 2014-03-26 | 江苏奥森新材料有限公司 | Production method of polypropylene nonwoven fabric |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985193A (en) * | 1996-03-29 | 1999-11-16 | Fiberco., Inc. | Process of making polypropylene fibers |
| CN2503079Y (en) * | 2001-10-29 | 2002-07-31 | 中国石化仪征化纤股份有限公司 | Extrusion nozzle for high-speed spinning hollow filament fibre |
| CN201074257Y (en) * | 2007-01-19 | 2008-06-18 | 东华大学 | A three-dimensional crimped hollow synthetic fiber |
| CN101343796A (en) * | 2008-09-03 | 2009-01-14 | 扬州华美丙纶纺织有限公司 | Polypropylene profiled fiber and its silk spraying method |
| CN101736416A (en) * | 2010-01-22 | 2010-06-16 | 绍兴超特合纤有限公司 | Preparation process for fine denier and superfine denier polypropylene fibers |
| CN101748501A (en) * | 2009-12-11 | 2010-06-23 | 东华大学 | Square hollow fiber and production method thereof |
-
2011
- 2011-01-13 CN CN 201110006794 patent/CN102011203A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985193A (en) * | 1996-03-29 | 1999-11-16 | Fiberco., Inc. | Process of making polypropylene fibers |
| CN2503079Y (en) * | 2001-10-29 | 2002-07-31 | 中国石化仪征化纤股份有限公司 | Extrusion nozzle for high-speed spinning hollow filament fibre |
| CN201074257Y (en) * | 2007-01-19 | 2008-06-18 | 东华大学 | A three-dimensional crimped hollow synthetic fiber |
| CN101343796A (en) * | 2008-09-03 | 2009-01-14 | 扬州华美丙纶纺织有限公司 | Polypropylene profiled fiber and its silk spraying method |
| CN101748501A (en) * | 2009-12-11 | 2010-06-23 | 东华大学 | Square hollow fiber and production method thereof |
| CN101736416A (en) * | 2010-01-22 | 2010-06-16 | 绍兴超特合纤有限公司 | Preparation process for fine denier and superfine denier polypropylene fibers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668492A (en) * | 2013-11-30 | 2014-03-26 | 江苏奥森新材料有限公司 | Production method of polypropylene nonwoven fabric |
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Application publication date: 20110413 |