CN1151410A - Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method - Google Patents
Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method Download PDFInfo
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- CN1151410A CN1151410A CN95119564A CN95119564A CN1151410A CN 1151410 A CN1151410 A CN 1151410A CN 95119564 A CN95119564 A CN 95119564A CN 95119564 A CN95119564 A CN 95119564A CN 1151410 A CN1151410 A CN 1151410A
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Abstract
A method for producing fine-denier and superfine-denier polypropylene fibre with "alloyed" polypropylene resin composition features that said "alloyed" polypropylene resin composition including low-flowability polymerization grade PP resin, high-flowability chemical degradation PP resin, one or more polyethylene resins and assistant is used as speical raw material, which is fusion spinning on ordinary spinning machine to obtain polypropylene fibre which features 0.5-2.0 deniers, 2.5-6g/d of tension strength, 20-140% of breaking elongation and stable spinning nature.
Description
The present invention relates to a kind of manufacture method of polypropylene fibre, specially refer to the manufacture method of a kind of thin dawn and superfine denier polypropylene fibers.
Traditional theory is thought, make thin dawn and superfine denier polypropylene fibers, require its material resin to have good fluidity of molten, lower molecular weight and narrow molecular weight distribution, it is very difficult poor with stability of spinning process that practice shows with the acrylic resin reduction filament number of above-mentioned characteristic, USP.4 in 1981,296,022 has reported acrylic resin with different molecular weight mix by a certain percentage after, can be used for making polypropylene fibre, the Chinese patent patent No.: 91104649.6 have set forth polymer grade polypropylene resin and the thin dawn of chemical degradation of polypropylene resin composition manufacturing of high workability and the method for superfine denier polypropylene fibers that adopts low flow.
It is poor that the present invention has overcome stability of spinning process, reduce the shortcoming of filament number difficulty, and the method for a kind of usefulness " alloying " polypropylene resin composite thin dawn of manufacturing and superfine denier polypropylene fibers is provided on the basis of the Chinese patent patent No. 91104649.6 patented technologies.
The used spinning PP Pipe Compound of method that the present invention makes thin dawn and superfine denier polypropylene fibers is the polymer grade polypropylene resin by low flow, the chemical degradation of polypropylene resin of high workability, a kind of " alloying " polypropylene resin composite that one or more polyvinyl resins and processing aid combine, the melt flow index MFI of said composition is 20-90 gram/10 minutes, preferable melt flow index is 25-75 gram/10 minutes, the melt flow index MFI of polymer grade polypropylene resin is that the 0.5-10 gram (was pressed ASTM D1238 in/10 minutes in the above-mentioned composition, 230 ℃, 2.16 kilogram), the melt flow index MFI of above-mentioned chemical degradation of polypropylene resin is 15-100 gram/10 minutes, and its molecular weight distributing index Q is 1.2-1.7.(measuring method of Q value is seen polymer communication, 1983,3,234), the melt flow index MFI of above-mentioned polyvinyl resin are 5-55 gram/10 minutes, and above-mentioned processing aid comprises stablizer, FLOW IMPROVERS, tinting material, static inhibitor and dyeing auxiliaries.The manufacture method of thin dawn of the present invention and superfine denier polypropylene fibers is to adopt above-mentioned spinning PP Pipe Compound to carry out melt-spinning on general spinning equipment, spinning temperature is 220-280 ℃, preferable spinning temperature is 240-270 ℃, spinning speed be 500-3500 rice/minute, but make well behaved undrawn yarn of drawing-off or pre-oriented yarn, its cross section is circle or triangle profile, with undrawn yarn or pre-oriented yarn carries out hot drawing-off or hot drawing-off adds bullet, drafting multiple is 1.5-4.0 times, and making filament number is thin dawn and the superfine denier polypropylene multifilament or the low stretch yarn at 0.5-2.0 dawn.
Adopt manufacture method stability of spinning process of the present invention good, reduced broken end, waft the silk shortcoming, the filament number of making is the 0.5-2.0 dawn, its tensile strength is the 2.5-6 gram/dawn, its elongation at break is 20-140%.
Context of the present invention can be with the further additional explanation of the following example, but can not think that the present invention only only limits to these embodiment.Embodiment 1:
Select " alloying " polypropylene resin composite of following prescription (seeing Table 1) for use, said composition melt flow index MFI is 38 grams/10 minutes, carries out melt-spinning.Spinning speed is 650 meters/minute, spinning temperature is 248 ℃ must arrive the undrawn yarn that the cross section is a trilobal, through drawing temperature is that 120 ℃ and drafting multiple are 3.2 to carry out drawing-off, and obtaining filament number was 1.3 dawn, and tensile strength is that 4.0 gram/dawn and elongation are 50% fine denier filament.
Table 1,0.2 part of 1,010 0.2 parts of embodiment 2 of 0.2 part of Irganox of 0.1 part of 2,6 di tert butyl 4 methyl phenol of calcium stearate of 95 parts of polyvinyl resins of 5 parts of chemical degradation modified polypropenes of spinning formula of special material polymer grade polypropylene (MFI=18 gram/10 minutes):
Select " alloying " polypropylene resin composite of following prescription (seeing Table 2) for use, said composition melt flow index MFI is 37 grams/10 minutes, carries out melt-spinning.Spinning speed is 900 meters/minute, spinning temperature is 248 ℃ must arrive the undrawn yarn that the cross section is a trilobal, through drawing temperature is that 100 ℃ and drafting multiple are 3.2 to carry out drawing-off, and obtaining filament number was 0.8 dawn, and tensile strength is that 5.5 gram/dawn and elongation are 23% fine denier filament.
Table 2,2 parts of 1,010 0.2 parts of embodiment 3 of 0.2 part of Irganox of 0.1 part of 2,6 di tert butyl 4 methyl phenol of calcium stearate of 95 parts of polyvinyl resins of 5 parts of chemical degradation modified polypropenes of spinning formula of special material polymer grade polypropylene (MFI=18 gram/10 minutes):
The alloying polypropylene resin composite that makes by table 3, the melt flow index of said composition is 51 grams/10 minutes, carry out melt-spinning, spinning speed is 1000 meters/minute, spinning temperature is 260 ℃, must arrive the cross section and be circular undrawn yarn, is that 100 ℃ and drafting multiple are 2.5 to carry out drawing-off through drawing temperature, obtaining filament number was 0.9 dawn, and tensile strength is that 3.1 gram/dawn and elongation are 140% fine denier filament.
Table 3,10 parts of 1,010 0.2 parts of embodiment 4 of 0.2 part of Irganox of 0.1 part of 2,6 di tert butyl 4 methyl phenol of calcium stearate of 90 parts of polyvinyl resins of 5 parts of chemical degradation modified polypropenes of spinning formula of special material polymer grade polypropylene (MFI=18 gram/10 minutes):
The melt flow index of the alloying polypropylene resin composite said composition that makes by table 3 is 42 grams/10 minutes, carry out melt-spinning, spinning speed is 3200 meters/minute, spinning temperature is 264 ℃, must arrive the cross section is circular pre-oriented yarn, through drawing temperature is that 130 ℃ and drafting multiple are 2.4 to carry out drawing-off, and obtaining filament number was 1.1 dawn, and tensile strength is that 4.3 gram/dawn and elongation are 54% fine denier filament.
1,010 0.2 parts of table 4,2 parts of 0.2 part of Irganox of 0.1 part of 2,6 di tert butyl 4 methyl phenol of calcium stearate of 95 parts of polyvinyl resins of 5 parts of chemical degradation modified polypropenes of spinning formula of special material polymer grade polypropylene (MFI=50 gram/10 minutes)
Claims (8)
1, a kind of thin dawn and superfine denier polypropylene alloy fiber, it is characterized in that the used raw material of described polypropylene alloy fiber is a kind of " alloying " polypropylene resin composite that chemical degradation of polypropylene resin, one or more polyvinyl resins and processing aid by the polymer grade polypropylene resin of low flow, high workability combine, the melt flow index MFI of said composition is 20-90 gram/10 minutes, filament number is the 0.5-2 dawn, and the cross section of alloy fiber is circle or triangle profile.
2, a kind of thin dawn according to claim 1 and superfine denier polypropylene alloy fiber is characterized in that the melt flow index MFI of described raw material is preferably 25-75 gram/10 minutes.
3, a kind of thin dawn according to claim 1 and superfine denier polypropylene alloy fiber, the melt flow index MFI that it is characterized in that described polymer grade polypropylene resin are 0.5-10 gram/10 minutes.
4, a kind of thin dawn according to claim 1 and superfine denier polypropylene alloy fiber is characterized in that the melt flow index MFI of described chemical degradation of polypropylene resin, are 15-100 gram/10 minutes, and molecular weight distributing index Q is 1.2-1.7.
5, a kind of thin dawn according to claim 1 and superfine denier polypropylene alloy fiber, the melt flow index MFI that it is characterized in that described polyvinyl resin are 5-55 gram/10 minutes.
6, according to the method for making of described a kind of thin dawn of claim 1-5 and superfine denier polypropylene alloy fiber, it is characterized in that adopting and stablize spinning technique and carry out melt-spinning, spinning temperature is 220-280 ℃, spinning speed be 500-3500 rice/minute, make undrawn yarn or pre-oriented yarn, its cross section is circle or triangle profile, with undrawn yarn or pre-oriented yarn carries out hot drawing-off or hot drawing-off adds bullet, drafting multiple be 1.5-4.0 doubly.
7, the method for making of a kind of thin dawn according to claim 6 and superfine denier polypropylene alloy fiber is characterized in that described spinning temperature is preferably 240-270 ℃.
8, a kind of thin dawn according to claim 1 and superfine denier polypropylene alloy fiber is characterized in that described alloy fiber cross section is a trilobal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95119564A CN1076032C (en) | 1995-11-24 | 1995-11-24 | Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN95119564A CN1076032C (en) | 1995-11-24 | 1995-11-24 | Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method |
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| CN1151410A true CN1151410A (en) | 1997-06-11 |
| CN1076032C CN1076032C (en) | 2001-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN95119564A Expired - Fee Related CN1076032C (en) | 1995-11-24 | 1995-11-24 | Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086367C (en) * | 1998-07-17 | 2002-06-19 | 中国科学院化学研究所 | Fine PP fiber reinforced cement based composite material, and use thereof |
| CN1116241C (en) * | 2000-04-26 | 2003-07-30 | 中国纺织大学化纤科技开发部 | Modified polypropene staple for concrete and mortar |
| CN1123595C (en) * | 1998-08-31 | 2003-10-08 | 中国科学院化学研究所 | High-flowability polypropylene resin composition and its preparing process and usage |
| CN107513814A (en) * | 2017-07-04 | 2017-12-26 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method for improving spunbonded polypropylene non-woven fabrics elasticity |
| EP2245077B1 (en) | 2008-01-21 | 2018-06-06 | Imerys Pigments, Inc. | Monofilament fibers comprising ground calcium carbonate |
| CN109535546A (en) * | 2018-10-26 | 2019-03-29 | 弓立（厦门）医疗用品有限公司 | A kind of antibacterial bacteriostatic nonwoven fabric formula |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296022A (en) * | 1980-06-04 | 1981-10-20 | Chevron Research | Polypropylene blend compositions |
| CN1027982C (en) * | 1991-07-13 | 1995-03-22 | 中国科学院化学研究所 | Preparing process of fine denier and ultra-fine denier polypropylene fibre P |
-
1995
- 1995-11-24 CN CN95119564A patent/CN1076032C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086367C (en) * | 1998-07-17 | 2002-06-19 | 中国科学院化学研究所 | Fine PP fiber reinforced cement based composite material, and use thereof |
| CN1123595C (en) * | 1998-08-31 | 2003-10-08 | 中国科学院化学研究所 | High-flowability polypropylene resin composition and its preparing process and usage |
| CN1116241C (en) * | 2000-04-26 | 2003-07-30 | 中国纺织大学化纤科技开发部 | Modified polypropene staple for concrete and mortar |
| EP2245077B1 (en) | 2008-01-21 | 2018-06-06 | Imerys Pigments, Inc. | Monofilament fibers comprising ground calcium carbonate |
| CN107513814A (en) * | 2017-07-04 | 2017-12-26 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method for improving spunbonded polypropylene non-woven fabrics elasticity |
| CN107513814B (en) * | 2017-07-04 | 2021-08-06 | 马鞍山市鑫程纳米新材料科技有限公司 | Preparation method for improving elasticity of spun-bonded polypropylene non-woven fabric |
| CN109535546A (en) * | 2018-10-26 | 2019-03-29 | 弓立（厦门）医疗用品有限公司 | A kind of antibacterial bacteriostatic nonwoven fabric formula |
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| Publication number | Publication date |
|---|---|
| CN1076032C (en) | 2001-12-12 |
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