CN102864522A - Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof - Google Patents
Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof Download PDFInfo
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- CN102864522A CN102864522A CN2012103726637A CN201210372663A CN102864522A CN 102864522 A CN102864522 A CN 102864522A CN 2012103726637 A CN2012103726637 A CN 2012103726637A CN 201210372663 A CN201210372663 A CN 201210372663A CN 102864522 A CN102864522 A CN 102864522A
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Abstract
The invention discloses a large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and a production method thereof. The monofilament is characterized in that the polymer is PP and PET blended polyester; the mass ratio of PP to PET is (20:80) to (60:40); the diameter of the monofilament is 0.2-1mm; the strength of the monofilament is not less than 3.5CN/dtex; and the elongation at break is 15-25%. The production method comprises the steps of melt extrusion, cooling, drawing and heat setting, wherein a liquid cooling method is adopted in the step of cooling. The production method is simple in process and is convenient to operate; and the formed fibers have the characteristics of high tenacity, high roundness, high uniformity and the like and have wide range of application.
Description
Technical field
The present invention relates to a kind of major diameter PP-PET core-skin type composite monofilament and production method thereof.
Background technology
There is defective in existing monofilament at aspect of performances such as intensity, extension at breaks, affects service behaviour and the scope of application.
Summary of the invention
The object of the present invention is to provide a kind of major diameter PP-PET core-skin type composite monofilament and production method thereof of favorable working performance.
Technical solution of the present invention is:
A kind of major diameter PP-PET core-skin type composite monofilament, it is characterized in that: polymer is polypropylene, polyethylene terephthalate blending polyester, and the mass ratio of polypropylene and polyethylene terephthalate is 20:80 ~ 60:40, polypropylene is cortex, polyethylene terephthalate is sandwich layer, filament diameter is 0.2 ~ 1mm, and filament strength 〉=3.5CN/dtex, elongation at break are 15 ~ 25%.
The production method of described major diameter PP-PET core-skin type composite monofilament, comprise composite spinning, cooling, stretching, HEAT SETTING step, it is characterized in that: liquid cooling method is adopted in cooling, to directly advance the liquid feeding tank from the polymer melt of spinneret component ejection, carry out the liquid cools moulding, and the forward and backward Wound-up roller in the liquid case carries liquid outlet tank to enter the postorder operation; Forward and backward Wound-up roller is positioned on the same level, distance between the forward and backward Wound-up roller is 50 ~ 120cm, wherein the temperature of liquid is 30 ~ 60 ℃ in the liquid case, and spinneret component spray silk end is 5cm with the distance of liquid case liquid level, and the roller in the liquid case and the distance of liquid level are 30 ~ 80cm; Liquid in the liquid case is circulation fluid, and the flow of circulation fluid is 25 ~ 250kg/h, and the liquid in the liquid case is water, triethylene glycol liquid or paraffin liquid, the tensile stress≤critical tensile stress of monofilament; One-level hot water draft temperature is 80 ~ 98 ℃, and secondary hot blast draft temperature is 140-180 ℃, and total stretching ratio is 4.0 ~ 6.0 times; Heat setting temperature is 160 ~ 180 ℃.
Technique of the present invention is simple, and is easy to operate, and the fiber of moulding has the characteristics such as high-tenacity, high roundness, high uniformity, and the scope of application is wide.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the cooling device schematic diagram of one embodiment of the invention.
The specific embodiment
A kind of major diameter PP-PET core-skin type composite monofilament, polymer is polypropylene, polyethylene terephthalate blending polyester, and the mass ratio of polypropylene and polyethylene terephthalate is 20:80 ~ 60:40, polypropylene is cortex, polyethylene terephthalate is sandwich layer, filament diameter is 0.2 ~ 1mm, and filament strength 〉=3.5CN/dtex, elongation at break are 15 ~ 25%.
The production method of described major diameter PP-PET core-skin type composite monofilament, comprise composite spinning, cooling, stretching, HEAT SETTING step, liquid cooling method is adopted in cooling, to directly advance the liquid feeding tank 2 from the polymer melt of spinneret component 1 ejection, carry out the liquid cools moulding, and the forward and backward Wound-up roller 3 in the liquid case, 4 carries liquid outlet tank to enter the postorder operation; Forward and backward Wound-up roller is positioned on the same level, distance between the forward and backward Wound-up roller is 50 ~ 120cm, wherein the temperature of liquid is 30 ~ 60 ℃ in the liquid case, and spinneret component spray silk end is 5cm with the distance of liquid case liquid level, and the roller in the liquid case and the distance of liquid level are 30 ~ 80cm; Liquid in the liquid case is circulation fluid, and the flow of circulation fluid is 25 ~ 250kg/h, and the liquid in the liquid case is water, triethylene glycol liquid or paraffin liquid, the tensile stress≤critical tensile stress of monofilament; One-level hot water draft temperature is 80 ~ 98 ℃, and secondary hot blast draft temperature is 140-180 ℃, and total stretching ratio is 4.0 ~ 6.0 times; Heat setting temperature is 160 ~ 180 ℃.
Claims (2)
1. major diameter PP-PET core-skin type composite monofilament, it is characterized in that: polymer is polypropylene, polyethylene terephthalate blending polyester, and the mass ratio of polypropylene and polyethylene terephthalate is 20:80 ~ 60:40, polypropylene is cortex, polyethylene terephthalate is sandwich layer, filament diameter is 0.2 ~ 1mm, and filament strength 〉=3.5CN/dtex, elongation at break are 15 ~ 25%.
2. the production method of major diameter PP-PET core-skin type composite monofilament according to claim 1, comprise composite spinning, cooling, stretching, HEAT SETTING step, it is characterized in that: liquid cooling method is adopted in cooling, to directly advance the liquid feeding tank from the polymer melt of spinneret component ejection, carry out the liquid cools moulding, and the forward and backward Wound-up roller in the liquid case carries liquid outlet tank to enter the postorder operation; Forward and backward Wound-up roller is positioned on the same level, distance between the forward and backward Wound-up roller is 50 ~ 120cm, wherein the temperature of liquid is 30 ~ 60 ℃ in the liquid case, and spinneret component spray silk end is 5cm with the distance of liquid case liquid level, and the roller in the liquid case and the distance of liquid level are 30 ~ 80cm; Liquid in the liquid case is circulation fluid, and the flow of circulation fluid is 25 ~ 250kg/h, and the liquid in the liquid case is water, triethylene glycol liquid or paraffin liquid, the tensile stress≤critical tensile stress of monofilament; One-level hot water draft temperature is 80 ~ 98 ℃, and secondary hot blast draft temperature is 140-180 ℃, and total stretching ratio is 4.0 ~ 6.0 times; Heat setting temperature is 160 ~ 180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372663.7A CN102864522B (en) | 2012-09-29 | 2012-09-29 | Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372663.7A CN102864522B (en) | 2012-09-29 | 2012-09-29 | Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102864522A true CN102864522A (en) | 2013-01-09 |
| CN102864522B CN102864522B (en) | 2014-04-23 |
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| CN201210372663.7A Active CN102864522B (en) | 2012-09-29 | 2012-09-29 | Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911685A (en) * | 2014-04-29 | 2014-07-09 | 厦门怡龙谷新材料科技有限公司 | Novel composite monofilament with skin core structure and large diameter, as well as manufacturing method and application thereof |
| CN103938294A (en) * | 2014-04-04 | 2014-07-23 | 吉林省华纺纤维制造有限公司 | Method for preparing polypropylene/polyethylene terephthalate (PP/PET) composite short fiber without any smell |
| CN103993384A (en) * | 2013-12-31 | 2014-08-20 | 江苏德力化纤有限公司 | Flax-like FDY fiber and preparation method thereof |
| CN103993383A (en) * | 2013-12-31 | 2014-08-20 | 江苏德力化纤有限公司 | Flax-like skin-core composite fiber and preparation method thereof |
| WO2016197560A1 (en) * | 2015-06-10 | 2016-12-15 | 南通新帝克单丝科技股份有限公司 | Large diameter sheath-core composite monofilament and production method therefor |
| CN112575396A (en) * | 2020-12-22 | 2021-03-30 | 南通新帝克单丝科技股份有限公司 | High-dpf polyester industrial yarn and production method thereof |
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| CN101161874A (en) * | 2006-10-10 | 2008-04-16 | 马海燕 | Core-skin type paper making modeling net filament |
| CN101974794A (en) * | 2010-10-26 | 2011-02-16 | 马海燕 | Large-diameter high-strength polymer hot melting monofilament and production method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993384A (en) * | 2013-12-31 | 2014-08-20 | 江苏德力化纤有限公司 | Flax-like FDY fiber and preparation method thereof |
| CN103993383A (en) * | 2013-12-31 | 2014-08-20 | 江苏德力化纤有限公司 | Flax-like skin-core composite fiber and preparation method thereof |
| CN103993384B (en) * | 2013-12-31 | 2017-11-14 | 江苏德力化纤有限公司 | One kind imitates numb FDY fiber and preparation method thereof |
| CN103993383B (en) * | 2013-12-31 | 2018-01-12 | 江苏德力化纤有限公司 | One kind imitates numb core-skin composite fiber and preparation method thereof |
| CN103938294A (en) * | 2014-04-04 | 2014-07-23 | 吉林省华纺纤维制造有限公司 | Method for preparing polypropylene/polyethylene terephthalate (PP/PET) composite short fiber without any smell |
| CN103911685A (en) * | 2014-04-29 | 2014-07-09 | 厦门怡龙谷新材料科技有限公司 | Novel composite monofilament with skin core structure and large diameter, as well as manufacturing method and application thereof |
| WO2016197560A1 (en) * | 2015-06-10 | 2016-12-15 | 南通新帝克单丝科技股份有限公司 | Large diameter sheath-core composite monofilament and production method therefor |
| CN112575396A (en) * | 2020-12-22 | 2021-03-30 | 南通新帝克单丝科技股份有限公司 | High-dpf polyester industrial yarn and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102864522B (en) | 2014-04-23 |
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Owner name: NANTONG NTEC SPECIAL FIBER CO., LTD. Free format text: FORMER OWNER: MA HAIYAN Effective date: 20150106 |
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Effective date of registration: 20150106 Address after: 226000, Gangzha District, Jiangsu City, Gangzha province Nantong port industrial and Trade Park Patentee after: Nantong new silk monofilament Polytron Technologies Inc Address before: 226000, Gangzha District, Jiangsu City, Nantong province Nantong Gangzha economic and Trade Zone, the new emperor textile fiber Chemical Co., Ltd. Patentee before: Ma Haiyan |