CN102242418A - Production method for melt direct spinning anti-ultraviolet polyester fine denier filament yarn - Google Patents
Production method for melt direct spinning anti-ultraviolet polyester fine denier filament yarn Download PDFInfo
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- CN102242418A CN102242418A CN2011101634439A CN201110163443A CN102242418A CN 102242418 A CN102242418 A CN 102242418A CN 2011101634439 A CN2011101634439 A CN 2011101634439A CN 201110163443 A CN201110163443 A CN 201110163443A CN 102242418 A CN102242418 A CN 102242418A
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Abstract
The invention discloses a production method for a melt direct spinning anti-ultraviolet polyester fine denier filament yarn. The production method comprises the following steps: preparing a sizing agent in a sizing agent kettle; preparing a polyester melt by performing esterification polymerization; conveying the polyester melt through a melt pipeline; and preparing an anti-ultraviolet polyester filament yarn on a POY (polyester pre-oriented yarn) or FDY (fully drawn yarn) melt direct spinning production device, wherein an anti-ultraviolet additive, namely an acid or ester containing naphthalene rings, the weight of which is 0.1%-2.5% of the weight of raw materials, is added in the step of preparing the sizing agent or esterification polymerization, thereby preparing an anti-ultraviolet polyester melt. The melt direct spinning anti-ultraviolet polyester fine denier filament yarn which is prepared by using the production method provided by the invention has the advantages of excellent uniformity of melt quality, excellent spinnability of fine denier filament yarn, excellent anti-ultraviolet property of fabrics, and excellent effect for separating and shielding the ultraviolet rays less than 360nm.
Description
Technical field
The present invention relates to a kind of production method of fused mass directly spinning uvioresistant dacron fine-denier long filament.The production technical field that belongs to synthetic fiber.
Background technology
Ultraviolet ray in the sunshine can be divided into UV-A by its wave-length coverage, three sections of UV-B and UV-C.Wherein the wave-length coverage of UV-A is 400-315nm; The wave-length coverage of UV-B is 315-280nm; The wave-length coverage of UV-C is 280-100nm.
Most of ultraviolet ray under the UV-C wavelength can be absorbed by atmosphere, so the daylight ultraviolet radiation wavelength that earth surface records is 280-400nm.
Because human destruction to atmospheric ozone layer increases the ultraviolet radiation intensity in the sunshine, cause the sick incidence of disease of human skin to increase fast, can make skin deposits melanin when serious, cause cutaneum carcinoma.
Polyester filament is the kind of consumption maximum in the synthetic fiber, and study and prepare the polyester filament with uvioresistant function for dacron is chemical fibre worker's focus always.At present the preparation technology of polyester filament is mainly: carry out slurry preparation → esterification polymerisation in the slurry still and make polyester fondant → carry through melt pipe, production obtains polyester filament on POY or FDY melt directly spinning filament production equipment.The mission critical of how development and production uvioresistant polyester filament is to select the uvioresistant additive.
According to uvioresistant mechanism, the uvioresistant additive mainly contains two types: ultraviolet light screener and ultraviolet absorber:
Ultraviolet light screener is generally the powder of inorganic, metal oxide, as titanium dioxide, zinc oxide etc.Be the spinnability that guarantees that effective uvioresistant effect is become reconciled, general diameter of particle is less, is nanoscale, and addition needs 〉=3%.Ultraviolet light screener needs to grind and need make earlier through special sharpener the master batch of high concentration usually, carries out co-blended spinning or core-skin composite spinning silk then.Also there is the research report to adopt in-situ polymerization prepared nano particle stoste to be used for polymerization in the recent period, but needs an amount of stabilizing agent of interpolation and ultrasonic dispersing, influence the long filament spinnability to prevent nano particle " secondary aggregation ".Because the existence of a certain amount of inorganic particulate is arranged, generally be applicable to thick dawn specification with the uvioresistant polyester filament of ultraviolet light screener production.
Ultraviolet absorber is generally the material that organically ultraviolet ray is had the strong absorption function, as benzophenone, and benzotriazole.Though these organic uv absorbers are good with the polyester filament associativity, weatherability is poor, and long-term the use easily disperseed and lost the uvioresistant effect.
CN200910081977.X discloses " a kind of preparation method with polyester of uvioresistant function " ultraviolet light screener and the compound use of ultraviolet absorber, and this method is complex manufacturing technology not only, and cost increase and uvioresistant effect are general.
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Summary of the invention
The object of the present invention is to provide a kind of production method of fused mass directly spinning uvioresistant dacron fine-denier long filament.The uvioresistant dacron fine-denier long filament of employing the inventive method preparation is the melt quality good uniformity not only, the fine denier filament good spinnability, and the fabric uvioresistant performance is good, and ultraviolet ray below the 360nm is had excellent shielding effect.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of production method of fused mass directly spinning uvioresistant dacron fine-denier long filament, comprise following processing step: carry out slurry preparation → esterification polymerisation in the slurry still and make polyester fondant → carry, on POY or FDY melt directly spinning filament production equipment, produce and obtain the uvioresistant polyester filament through melt pipe; In slurry preparation or esterification polymerization technology step, add the naphthalene-ring containing acid or the ester that account for raw material weight percentage 0.1%-2.5% and do the uvioresistant additive, preparation uvioresistant polyester melt.
Total fiber number≤the 83dtex of described uvioresistant polyester filament and filament number≤1.5dtex belong to fine denier filament.
Described esterification polymerisation adopts a kind of in three still flow processs, four still flow processs and the five still flow processs; The production method of described esterification polymerisation adopts PTA direct esterification method or DMT ester-interchange method.
Described naphthalene-ring containing acid or ester are naphthalenedicarboxylic acid or naphthalene diformic acid dimethyl ester.Point of addition adopts a kind of in first esterifying kettle in slurry still, the esterification polymerisation and second esterifying kettle in the esterification polymerisation.
Beneficial effect of the present invention is: the uvioresistant additive that the present invention selects contains molecular volume greatly and more easily plane naphthalene-ring containing acid or ester, the uvioresistant dacron fine-denier long filament of employing the inventive method preparation is the melt quality good uniformity not only, the fine denier filament good spinnability, the fabric uvioresistant performance is good, and has saved grinding, the dispersion step of inorganic additive in the conventional uvioresistant long filament production; It is poor to have evaded organic additive weatherability of covering, easily the shortcoming that lost efficacy and be not suitable for spinning fine denier filament.It is single that the present invention has the additive kind, adding technology is simple, addition is little, with the good characteristics of PET polyester fondant compatibility, make product of the present invention have excellent shielding effect to ultraviolet ray below the 360nm, be specially adapted to the production uvioresistant dacron fine-denier long filament of the big capacity fused mass directly spinning of long period steady production device, can on super-huge polyester device, promote.
The specific embodiment
Embodiment 1
The production method of a kind of fused mass directly spinning uvioresistant dacron fine-denier long filament of present embodiment adopts PTA direct esterification technology and five still flow processs.Specifically comprise following processing step: carry out slurry preparation in the slurry still, the esterification polymerisation makes polyester fondant → carry through melt pipe, produces on POY or FDY melt directly spinning filament production equipment and obtains the uvioresistant polyester filament; In the slurry still of slurry preparation, add and account for raw material weight percentage and be respectively 0%, 0.1%, 0.5%, 0.7%, 1.0% and 2.5% naphthalene diformic acid dimethyl ester as the uvioresistant additive, preparation uvioresistant polyester melt.The cross sectional shape of prepared uvioresistant dacron fine-denier long filament can be circle or abnormity (as in platypelloid type, in-line, quadrangle, the hollow type a kind of).Total fiber number≤the 83dtex of uvioresistant polyester filament and filament number≤1.5dtex belong to fine denier filament.Utilize Ultraviolet Detector, the polyester fondant uvioresistant performance that records is shown in Table 1.Table 1 is present embodiment 1 a polyester fondant uvioresistant performance table.
Embodiment 2
The production method of a kind of fused mass directly spinning uvioresistant dacron fine-denier long filament of present embodiment adopts DMT ester exchange process and three still flow processs or four still flow processs.Specifically comprise following processing step: carry out slurry preparation in the slurry still, the esterification polymerisation makes polyester fondant → carry through melt pipe, produces on POY or FDY melt directly spinning filament production equipment and obtains the uvioresistant polyester filament; Add in the esterifying kettle in the esterification polymerisation and account for raw material weight percentage and be respectively 0%, 0.1%, 0.5%, 0.7%, 1.0% and 2.5% naphthalenedicarboxylic acid as the uvioresistant additive, preparation uvioresistant polyester melt.The cross sectional shape of prepared uvioresistant dacron fine-denier long filament can be circle or abnormity (as in platypelloid type, in-line, quadrangle, the hollow type a kind of).Total fiber number≤the 83dtex of uvioresistant polyester filament and filament number≤1.5dtex belong to fine denier filament.Utilize Ultraviolet Detector, the polyester fondant uvioresistant performance that records is shown in Table 2.Table 2 is present embodiment 2 polyester fondant uvioresistant performance tables.
Claims (5)
1. the production method of a fused mass directly spinning uvioresistant dacron fine-denier long filament, comprise following processing step: carry out slurry preparation → esterification polymerisation in the slurry still and make polyester fondant → carry, on POY or FDY melt directly spinning filament production equipment, produce and obtain the uvioresistant polyester filament through melt pipe; It is characterized in that: in slurry preparation or esterification polymerization technology step, add the naphthalene-ring containing acid or the ester that account for raw material weight percentage 0.1%-2.5% and do the uvioresistant additive, preparation uvioresistant polyester melt.
2. the production method of a kind of fused mass directly spinning uvioresistant dacron fine-denier long filament as claimed in claim 1 is characterized in that: the total fiber number≤83dtex of described uvioresistant polyester filament and filament number≤1.5dtex belong to fine denier filament.
3. the production method of a kind of fused mass directly spinning uvioresistant dacron fine-denier long filament as claimed in claim 1 is characterized in that: described esterification polymerisation adopts a kind of in three still flow processs, four still flow processs and the five still flow processs; The production method of described esterification polymerisation adopts PTA direct esterification method or DMT ester-interchange method.
4. the production method of a kind of fused mass directly spinning uvioresistant dacron fine-denier long filament as claimed in claim 1 is characterized in that: described naphthalene-ring containing acid or ester are naphthalenedicarboxylic acid or naphthalene diformic acid dimethyl ester.
5. point of addition adopts a kind of in first esterifying kettle in slurry still, the esterification polymerisation and second esterifying kettle in the esterification polymerisation.
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| CN2011101634439A CN102242418A (en) | 2011-06-17 | 2011-06-17 | Production method for melt direct spinning anti-ultraviolet polyester fine denier filament yarn |
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| CN2011101634439A CN102242418A (en) | 2011-06-17 | 2011-06-17 | Production method for melt direct spinning anti-ultraviolet polyester fine denier filament yarn |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104277212A (en) * | 2014-09-28 | 2015-01-14 | 浙江古纤道新材料股份有限公司 | Four-kettle polymerization device and process |
| CN112281254A (en) * | 2020-09-30 | 2021-01-29 | 海安启弘纺织科技有限公司 | Preparation method of novel anti-ultraviolet antistatic elastic fabric |
| CN112281253A (en) * | 2020-08-03 | 2021-01-29 | 盐城工学院 | Parallel PET/PBT double-component anti-static anti-ultraviolet fiber and preparation method thereof |
| CN112796005A (en) * | 2020-12-30 | 2021-05-14 | 盐城工学院 | Sheath-core type two-component anti-static anti-ultraviolet fiber and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1257091A (en) * | 1998-12-14 | 2000-06-21 | 新光合成纤维股份有限公司 | Opacity polyester fiber |
| CN101168854A (en) * | 2007-11-28 | 2008-04-30 | 盛虹集团有限公司 | Fused mass directly spinning technique for producing functional polyester filament yarn |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
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2011
- 2011-06-17 CN CN2011101634439A patent/CN102242418A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257091A (en) * | 1998-12-14 | 2000-06-21 | 新光合成纤维股份有限公司 | Opacity polyester fiber |
| CN101168854A (en) * | 2007-11-28 | 2008-04-30 | 盛虹集团有限公司 | Fused mass directly spinning technique for producing functional polyester filament yarn |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104277212A (en) * | 2014-09-28 | 2015-01-14 | 浙江古纤道新材料股份有限公司 | Four-kettle polymerization device and process |
| CN104277212B (en) * | 2014-09-28 | 2015-09-30 | 浙江古纤道新材料股份有限公司 | Four still poly-unit and techniques thereof |
| CN112281253A (en) * | 2020-08-03 | 2021-01-29 | 盐城工学院 | Parallel PET/PBT double-component anti-static anti-ultraviolet fiber and preparation method thereof |
| CN112281253B (en) * | 2020-08-03 | 2022-12-27 | 盐城工学院 | Parallel PET/PBT double-component anti-static anti-ultraviolet fiber and preparation method thereof |
| CN112281254A (en) * | 2020-09-30 | 2021-01-29 | 海安启弘纺织科技有限公司 | Preparation method of novel anti-ultraviolet antistatic elastic fabric |
| CN112796005A (en) * | 2020-12-30 | 2021-05-14 | 盐城工学院 | Sheath-core type two-component anti-static anti-ultraviolet fiber and preparation method thereof |
| CN112796005B (en) * | 2020-12-30 | 2023-05-23 | 盐城工学院 | Sheath-core type double-component anti-static reactance ultraviolet fiber and preparation method thereof |
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