CN101372768A - Polyester composite light weight fibre and production method thereof - Google Patents
Polyester composite light weight fibre and production method thereof Download PDFInfo
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- CN101372768A CN101372768A CNA2007101312142A CN200710131214A CN101372768A CN 101372768 A CN101372768 A CN 101372768A CN A2007101312142 A CNA2007101312142 A CN A2007101312142A CN 200710131214 A CN200710131214 A CN 200710131214A CN 101372768 A CN101372768 A CN 101372768A
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Abstract
The invention discloses a light compound polyester fiber with the density of 0.8 to 1.1g/cm<3>. The production method comprises using a compound spinning machine to carry out smelting spinning on component A and component B by a compound spinneret plate; further winding, extending and netting are carried out to obtain the compound filaments; then the light compound polyester fiber is obtained by post processing. The compound fiber has better spinnability and physical property compared with common polypropylene fiber; besides, the light compound polyester fiber has the advantages of excellent coloring effect, good photostability, low cost and being more practical.
Description
Technical field
The present invention relates to a kind of polypropylene composite light weight fibre and production method thereof.
Background technology
Polyester fiber (being terylene) has the intensity height, good springiness, and wrinkle resistance is strong, dimensionally stable, good, the stable chemical performance of ABRASION RESISTANCE, quick-drying washable, performance such as heat resistance and weather fastness are good.Therefore, it is all well received to be used for civilian and industry, is a kind of comparatively ideal textile material.
Polypropylene fibre is the trade name of polypropylene fibre, and it is to make the fiber that raw material makes through polymerization, melt spinning by propylene.Polypropylene fibre formally begins suitability for industrialized production in nineteen fifty-seven, is the up-and-coming youngster in the synthetic fiber.Because to have production technology simple for polypropylene fibre, product is inexpensive, the intensity height, and advantage such as relative density is light is so polypropylene fibre develops very soon.Polypropylene fibre is the fourth-largest kind of synthetic fiber at present.The Main physical of polypropylene fibre and chemical property:
1. the vertical face of form polypropylene fibre is straight smooth, and the cross section is rounded.
2. the density polypropylene biggest advantage is that quality is light, and its density is the lightest kind of density in the common chemical fibre for 0.91g/cm3 only, so the higher area coverage that comparable other fibers of polypropylene fibre of same weight obtain.
3. the intensity height of stretching property polypropylene fibre by force, elongation is big, and initial modulus is higher, excellent spring.So the polypropylene fibre ABRASION RESISTANCE is good.In addition, the wet strong basis of polypropylene fibre originally equals to do strong, so it is an ideal material of making fishing net, hawser.
4. the hygroscopicity of hygroscopicity and dyeability polypropylene fibre is very little, moisture absorption hardly, and the regain under the general atmosphere condition approaches zero.But it has core sucting action, can transmit steam by the capillary in the fabric, but itself does not play any absorption.The dyeability of polypropylene fibre is relatively poor, and chromatogram is incomplete.
5. acid-fast alkali-proof polypropylene fibre has chemical resistance preferably, and except red fuming nitric acid (RFNA), outside the dense caustic soda, polypropylene fibre is good to the bronsted lowry acids and bases bronsted lowry resistance, so be suitable for use as filtering material and packaging material.
6. polypropylene fibre light resistance such as light resistance is relatively poor, and heat endurance is also relatively poor, and is easily aging, not anti-flatiron.But can improve its ageing resistace by when spinning, adding anti-old magnificent agent.In addition, the electrical insulating property of polypropylene fibre is good, easily produces static man-hour but add.
Summary of the invention
The object of the present invention is to provide a kind of light weight, polyester composite light weight fibre and production method thereof that performance is good.
Technical solution of the present invention is:
A kind of polyester composite light weight fibre is characterized in that: this fibre density is at 0.8-1.1g/cm
3
Described polyester composite light weight fibre, by two kinds of A, B component compound composition, the B component is polypropylene or modified polypropene, and the A component is polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate (PBT) or modification polyethylene terephthalate.Because polyethylene terephthalate spinning process maturation, cost is lower, excellent performance, preferred polyethylene terephthalate is the A component, and that the most outstanding performance of polypropylene is exactly its density is very little, be 60% of common PET, the thermal conductivity that is exactly it in addition is minimum in all fibres kind, so the B component is selected polypropylene for use.Described polyester composite light weight fibre elongation at break is 15%-45%, and intensity is 1.8cN/dtex-3.5cN/dtex, 3%≤receipts≤15% boils.The B components contents is 50-90% (weight).
The complex method of A component and B component can be mixed type, cut fine type, core-sheath-type or fabric of island-in-sea type.Preferred core-sheath-type or fabric of island-in-sea type, in the core-sheath-type, the A component is made sheath, and the B component is made core; In the fabric of island-in-sea type: the A component is done the sea, and the B component is done the island.Good dyeability, the light resistance that can well keep the A component like this, and the while also has the effect of polyacrylic light weight, and it is that it can transmit steam by the capillary in the fabric that polypropylene has good wicking, but itself does not play any absorption.
A kind of production method of light weight composite fibre is characterized in that: may further comprise the steps:
(1) use composite spinning machine with A, the B component is carried out melt spinning by cutting fine type, core-sheath-type or fabric of island-in-sea type composite spinneret, obtains bicomponent filament yarn through the stretching of reeling, network then, and spinning temperature A component is 285-310 ℃, the B component is 250-295 ℃, and coiling speed is 2000-3800m/min;
(2) precursor that step (1) is made carries out the back processed, and multiplying power is 1.3-2.5 times, and heter temperature is 130-220 ℃, gets product.
Good and the cheap practicality of product light weight effect of the present invention, light weight composite fibre of the present invention both can also can be cut into slices with modification with conventional polyester slice, as CDP (cationic-dyeable), ECDP polyester slices such as (normal temperature and pressure cationic-dyeables), improve its dyeability or wearing comfort.
The present invention will be described in more detail below by embodiment.But scope of the present invention is not subjected to the restriction of these fact Examples.
The specific embodiment:
Embodiment 1:
It is polyethylene terephthalate that the A component is made sheath, it is the spinning grade polypropylene that the B component is made core, compound weight ratio is sheath: core=20:80, use the core-sheath-type composite spinneret to carry out melt spinning, make the light weight fibre precursor, and further obtain bicomponent filament yarn, i.e. light weight composite fibre through reel stretching, network etc.; The A component temperature is 280 ℃ during spinning, 285 ℃ of B component temperatures, spinning speed are 2790m/min, and back road DTY multiplying power is 1.33 times, heter temperature is at 140 ℃, product strength 2.68cN/dtex, elongation at break 27%, tone b value=2.5, receipts=6.4% that boils, density=0.95g/cm
3
Embodiment 2:
The A component is done the sea and is polyethylene terephthalate, it is the spinning grade polypropylene that the B component is done the island, compound ratio is sheath: core=20:80, use the fabric of island-in-sea type composite spinneret to carry out melt spinning, make the light weight fibre precursor, and further obtain bicomponent filament yarn, i.e. light weight composite fibre through reel stretching, network etc.; The A component temperature is 285 ℃ during spinning, 280 ℃ of B component temperatures, spinning speed are 2795m/min, and back road DTY multiplying power is 1.35 times, heter temperature is at 140 ℃, product strength 2.75cN/dtex, elongation at break 30%, tone b value=3.0, receipts=5.8% that boils, density=0.95g/cm
3
Embodiment 3:
It is cationic-dyeable type polyethylene terephthalate that the A component is made sheath, it is the spinning grade polypropylene that the B component is made core, compound ratio is sheath: core=15:85, use the core-sheath-type composite spinneret to carry out melt spinning, make the light weight fibre precursor, and further obtain bicomponent filament yarn, i.e. light weight composite fibre through reel stretching, network etc.; The A component temperature is 285 ℃ during spinning, 280 ℃ of B component temperatures, spinning speed are 2795m/min, and back road DTY multiplying power is 1.35 times, heter temperature is at 140 ℃, product strength 2.55cN/dtex, elongation at break 26%, tone b value=3.0, receipts=5.8% that boils, density=0.92g/cm
3
Claims (8)
1. polyester composite light weight fibre, it is characterized in that: this fibre density is 0.8-1.1g/cm
3
2. polyester composite light weight fibre according to claim 1, it is characterized in that: by two kinds of A, B component compound composition, the B component is polypropylene or modified polypropene, and the A component is polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate (PBT) or modification polyethylene terephthalate.
3. polyester composite light weight fibre according to claim 2 is characterized in that: the A component is a polyethylene terephthalate, and the B component is a polypropylene.
4. according to claim 2 or 3 described polyester composite light weight fibres, it is characterized in that: wherein the B components contents is 50-90%.
5. according to claim 2 or 3 described polyester composite light weight fibres, it is characterized in that: elongation at break is 15%-45%, and intensity is 1.8cN/dtex-3.5cN/dtex, 3%≤receipts≤15% boils.
6. according to claim 1,2 or 3 described polyester composite light weight fibres, it is characterized in that: being shaped as mixed type, cutting fine type, core-sheath-type or fabric of island-in-sea type of compound cross-section.
7. according to claim 2 or 3 described polyester composite light weight fibres, it is characterized in that: the complex method of A component and B component is core-sheath-type or fabric of island-in-sea type, and in the core-sheath-type, the A component is made sheath, and the B component is made core; In the fabric of island-in-sea type, the A component is done the sea, and the B component is done the island.
8. the production method of the described polyester composite light weight fibre of claim 1 is characterized in that: may further comprise the steps:
(1) use composite spinning machine that A, B component are carried out melt spinning by cutting fine type, core-sheath-type or fabric of island-in-sea type composite spinneret, obtain bicomponent filament yarn through the stretching of reeling, network then, spinning temperature A component is 270-310 ℃, and the B component is 230-290 ℃, and coiling speed is 2000-3800m/min; Wherein the B component is polypropylene or modified polypropene, and the A component is polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate (PBT) or modification polyethylene terephthalate;
(2) the prepared precursor of step (1) is carried out the false twisting processed, extension ratio is 1.3～2.5 times, and heter temperature is 130-220 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101312142A CN101372768A (en) | 2007-08-22 | 2007-08-22 | Polyester composite light weight fibre and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101312142A CN101372768A (en) | 2007-08-22 | 2007-08-22 | Polyester composite light weight fibre and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101372768A true CN101372768A (en) | 2009-02-25 |
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| CNA2007101312142A Pending CN101372768A (en) | 2007-08-22 | 2007-08-22 | Polyester composite light weight fibre and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572406A (en) * | 2012-08-08 | 2014-02-12 | 东丽纤维研究所（中国）有限公司 | Light-weight sea-island composite fiber |
| CN104233769A (en) * | 2013-06-15 | 2014-12-24 | 健彰实业股份有限公司 | Lightweight weaving process method for blending polyester fiber and nylon yarn |
| CN104480569A (en) * | 2014-12-31 | 2015-04-01 | 江苏恒力化纤股份有限公司 | Polyester elastic yarn and preparation method thereof |
-
2007
- 2007-08-22 CN CNA2007101312142A patent/CN101372768A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572406A (en) * | 2012-08-08 | 2014-02-12 | 东丽纤维研究所（中国）有限公司 | Light-weight sea-island composite fiber |
| CN103572406B (en) * | 2012-08-08 | 2016-03-09 | 东丽纤维研究所（中国）有限公司 | A kind of light-weight sea-island composite fiber |
| CN104233769A (en) * | 2013-06-15 | 2014-12-24 | 健彰实业股份有限公司 | Lightweight weaving process method for blending polyester fiber and nylon yarn |
| CN104480569A (en) * | 2014-12-31 | 2015-04-01 | 江苏恒力化纤股份有限公司 | Polyester elastic yarn and preparation method thereof |
| CN104480569B (en) * | 2014-12-31 | 2017-02-22 | 江苏恒力化纤股份有限公司 | Polyester elastic yarn and preparation method thereof |
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Application publication date: 20090225 |