CN102704034B - Method for preparing spandex fibers suitable for high-speed unwinding field - Google Patents
Method for preparing spandex fibers suitable for high-speed unwinding field Download PDFInfo
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- CN102704034B CN102704034B CN 201210191040 CN201210191040A CN102704034B CN 102704034 B CN102704034 B CN 102704034B CN 201210191040 CN201210191040 CN 201210191040 CN 201210191040 A CN201210191040 A CN 201210191040A CN 102704034 B CN102704034 B CN 102704034B
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- Prior art keywords
- dolomol
- unwinding
- spandex
- magnesium stearate
- preparation
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- 229920002334 Spandex Polymers 0.000 title claims abstract description 45
- 239000004759 spandex Substances 0.000 title claims abstract description 45
- 239000000835 fiber Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 20
- 238000009987 spinning Methods 0.000 claims abstract description 15
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 48
- 238000002360 preparation method Methods 0.000 claims description 14
- 229920002545 silicone oil Polymers 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 abstract 10
- 235000019359 magnesium stearate Nutrition 0.000 abstract 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 238000007792 addition Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229920006306 polyurethane fiber Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a method for preparing spandex fibers suitable for a high-speed unwinding field, which is suitable for preparing low-stress fine-denier spandex filaments. The method is characterized by comprising the following steps of: (1) polymerization: adding an unwinding agent, namely magnesium stearate, in a polymer, wherein the mass content of magnesium stearate in the polymer is 0.1-1.5%, the particle size of magnesium stearate is 0.3-5 mum; (2) spinning: in an oiling working procedure, selecting an organic silicon oil as an oily agent, and adding magnesium stearate in the organic silicon oil, wherein the mass percent content of magnesium stearate is 0.1-1.5%, the oiling rate is 4-6%; and in a pre-drawing working procedure, the pre-drawing rate is 0.8-1.1, and the contact pressure is 10-15 Kg. The low-stress fine-denier spandex filaments, prepared according to the method disclosed by the invention, have an excellent unwinding property.
Description
Technical field:
The present invention relates to a kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field, be mainly used in preparation thin dawn of low stress (20D is following) spandex thread, belong to textile technology field.
Technical background:
Spandex is a kind of weaving special fibre, has been widely used in all kinds of wrap yarns field.The bag yarn speed of present domestic normal packet covered yarn machine device is usually at 400-600 m/min, the draw ratio of spandex is usually between 2.5-4.0, the withdrawal speed of spandex thread is at 100-240 m/min like this, and the easy zbility of general fine denier spandex silk can reach the requirement of this withdrawal speed.Be accompanied by the raising of wrap yarn machine performance and efficient, the bag yarn speed of novel wrap yarn machine has been brought up to 600-1200 m/min, simultaneously, be made into the flexibility of cloth for improving wrap yarn, the drawing-off of spandex has also dropped between the 2.0-3.5, the withdrawal speed of spandex thread has been brought up to 170-600 m/min, and this has just increased substantially the unwinding requirement of the fine denier spandex of low stress.The following low stress polyurethane fiber thin denier of the 20D silk of at present domestic existing other spandex manufacturers can not satisfy withdrawal speed in the instructions for use of the wrap yarn machine more than 300 m/mins.
Have based on this, the applicant makes the present invention.
Summary of the invention:
The purpose of this invention is to provide a kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field, for the preparation of (20 dawn are following) spandex thread of thin dawn of low stress.
The present invention for achieving the above object, the technical scheme of taking is as follows:
A kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field is characterized in that, may further comprise the steps:
(1) polymerization: in condensate, add and separate the agent dolomol that relaxes, dolomol mass content 0.1-1.5% in the condensate, dolomol particle diameter 0.3-5 μ m;
For improving the polymeric unwinding easy zbility of polymerization workshop section, usually adopt and in condensate, add the easypro agent dolomol of a certain amount of solution, found through experiments, affect main two additions that factor is dolomol of polymeric unwinding easy zbility, and the particle diameter of dolomol, determine that finally at the dolomol addition be the 0.1-1.5%(mass content), when particle diameter is 0.3-5 μ m, has preferably unwinding easy zbility, when selecting particle diameter to be the dolomol of 0.3-2 μ m, because particle diameter is less, it is narrower to distribute, and controlling simultaneously the dolomol addition is 0.5-1%, has optimum efficiency.
(2), spinning: in the operation that oils, finish is selected organic silicone oil, is added with dolomol in organic silicone oil, and the quality percentage composition of dolomol is 0.5-1.5%, oil applying rate 4-6%; In the coiling operation, preliminary draft is 0.8-1.1, connects to press to be 10-15Kg.
The selection of spinning oil: for guaranteeing the unwinding easy zbility of spandex thread, need to carry out oiling treatment to spandex thread in spinning workshop section, the addition of the selecting of finish kind, dolomol and finish oil applying rate directly have influence on the unwinding easy zbility during the road uses behind the spandex thread.Find through experiment: finish selects to contain the organic silicone oil of dolomol, and the addition of dolomol is the 0.5-1.5%(mass content), and the control oil applying rate is when 4-6%, unwinding easy zbility that can the Effective Raise spandex thread; Especially the addition of controlling dolomol is the 0.5-1%(mass content), and when selecting the transparent liquid dolomol, best results; This is that easy zbility is better because the dispersiveness of transparent liquid dolomol is better.
Preliminary draft: for improving the unwinding of fine denier spandex silk, the selection of spinning process condition is extremely important, the preliminary draft of spinning and coiling connect the setting of pressure, the unwinding of spandex will directly be had influence on, definite through testing, for the fine denier spandex silk, the preliminary draft of spinning is 0.8-1.1, connect and press as 10-15Kg, can obtain unwinding very.
Beneficial effect of the present invention is as follows:
A kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field of the present invention, be applicable to prepare the low stress fine denier filament (20 dawn are following) in high-speed unwinding field, aspect three of the unwinding easy zbility that improves polymeric unwinding easy zbility, spinning workshop section raising spinning oil in polymerization workshop section and the unwinding easy zbilities that improves spinning technique etc., process conditions and technological parameter are optimized, effectively improved the unwinding easy zbility of spandex thread, after testing, adopt the 20D polyurethane fiber thin denier silk of the present invention's preparation, its unwinding can reach 27%.
The invention will be further described below in conjunction with the specific embodiment.
The specific embodiment:
Embodiment 1:
In polymerization workshop section, add in the condensate and separate the agent dolomol that relaxes, the dolomol particle diameter is between 0.3～2 μ m, and addition is 0.5～0.8%, in order to improve the unwinding easy zbility of polyurethane polymerization body.Oil in the workshop section, adopt the organic silicone oil that contains dolomol, dolomol content is 0.5%～1.5%, and oil applying rate is controlled at 4%～6%; In the coiling workshop section, preliminary draft connects and is pressed in 12～15Kg 0.9～1.1, and other adopt conventional spinning process condition.According to above-mentioned process conditions, produce the fine denier spandex silk of 20D low stress.
Embodiment 2:
In polymerization workshop section, add in the condensate and separate the agent dolomol that relaxes, average grain diameter is at 5 μ m, and addition is 0.1%～0.5%; In the workshop section that oils, use contains the organic silicone oil of dolomol, dolomol is selected the transparent liquid dolomol, and dispersed better, the fine denier spandex silk easy zbility of producing is better, dolomol content is 0.8%～1.2%, oil applying rate is controlled at 4%～5%, and in the coiling workshop section, preliminary draft is 0.9～1.1, connect and be pressed in 12～15Kg, other adopt conventional spinning process condition.According to above-mentioned process conditions, produce the fine denier spandex silk of 20D low stress.
Embodiment 3:
In polymerization workshop section, add in the condensate and separate the agent dolomol that relaxes, average grain diameter is at 5 μ m, and addition is 0.1%～0.5%; In the workshop section that oils, use contains the organic silicone oil of dolomol, dolomol content is 0.5%～1.5%, oil applying rate is controlled at 4%～6%, in the coiling workshop section, because coiling preliminary draft and coiling connect the rolling density that pressure all directly affects the fine denier spandex silk, think the unwinding easy zbility that guarantees fine denier spandex, use lower preliminary draft 0.9～0.95 in the present embodiment, simultaneously, connect pressure and be chosen in 10～12 Kg; Other adopt conventional spinning process condition.According to above-mentioned process conditions, produce the fine denier spandex silk of 20D low stress.
Embodiment 4:
In the present embodiment, for fully improving the unwinding easy zbility of 20D low stress spandex of thin dawn, in polymerization workshop section, adopt preferred version, in the condensate, separating the agent dolomol that relaxes selects particle diameter between 0.3～2 μ m, the dolomol average grain diameter is less, distribution is narrower, and in order to improve the unwinding easy zbility of polyurethane polymerization body, the dolomol addition is 0.5～0.8%; In the workshop section that oils, use contains dispersed better, the better organic silicone oil that contains transparent dolomol of easy zbility, dolomol content is 0.8%～1.2%, oil applying rate is controlled at 4%～5%, in coiling workshop section, use the low preliminary draft 0.9～0.95 that reduces rolling density, simultaneously, connect pressure and be chosen in 10～12 Kg; Other adopt conventional spinning process condition.According to above-mentioned process conditions, produce the fine denier spandex silk of 20D low stress.
Embodiment 5:
In polymerization workshop section, add the easypro agent dolomol of unwinding solution in the condensate, the dolomol average grain diameter is at 5 μ m, and addition is 0.1%～0.5%; Oil in the workshop section, adopt the conventional organic silicone oil that contains dolomol, dolomol content is 0.5%～1.5%, and oil applying rate is controlled at 4%～6%, and in the coiling workshop section, preliminary draft connects and is pressed in 12～15Kg 0.9～1.1.According to above-mentioned process conditions, produce the fine denier spandex silk of 20D low stress.
20D fine denier spandex silk and the comparative example of embodiment of the invention 1-5 preparation are carried out respectively the unwinding detection, can find: the 20D fine denier spandex silk that the embodiment of the invention is produced, compare with conventional spandex thread, the unwinding easy zbility of its spandex thread volume obviously improves, particularly the unwinding increase of internal layer bottom silk is better obviously, and concrete test data contrast sees Table 1.
Table 1: the detection tables of data of the 20D fine denier spandex silk of embodiment of the invention preparation.
| Unwinding (%) | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Outer | 39 | 46 | 58 | 27 | 49 |
| The middle level | 45 | 55 | 76 | 32 | 95 |
| Internal layer | 70 | 78 | 89 | 36 | 120 |
Remarks: the less expression unwinding of value data is better in the table 1.
Claims (4)
1. a preparation method who is applicable to the spandex fibre in high-speed unwinding field is characterized in that, may further comprise the steps:
(1) polymerization: in condensate, add and separate the agent dolomol that relaxes, dolomol mass content 0.1-1.5% in the condensate, dolomol particle diameter 0.3-5 μ m;
(2), spinning: in the operation that oils, finish is selected organic silicone oil, is added with dolomol in organic silicone oil, and the quality percentage composition of dolomol is 0.5-1.5%, oil applying rate 4-6%; In the preliminary draft operation, preliminary draft is 0.8-1.1, connects to press to be 10-15Kg.
2. a kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field according to claim 1 is characterized in that, in the step (1), and dolomol mass content 0.5-1%, dolomol particle diameter 0.3-2 μ m.
3. a kind of preparation method who is applicable to the spandex fibre in high-speed unwinding field according to claim 1 is characterized in that, in the step (2), the quality percentage composition of dolomol is 0.5-1%.
4. according to claim 1 or 3 described a kind of preparation methods that are applicable to the spandex fibre in high-speed unwinding field, it is characterized in that in the step (2), the dolomol of adding is the transparent liquid dolomol.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210191040 CN102704034B (en) | 2012-06-12 | 2012-06-12 | Method for preparing spandex fibers suitable for high-speed unwinding field |
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| CN 201210191040 CN102704034B (en) | 2012-06-12 | 2012-06-12 | Method for preparing spandex fibers suitable for high-speed unwinding field |
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| CN102704034A CN102704034A (en) | 2012-10-03 |
| CN102704034B true CN102704034B (en) | 2013-10-23 |
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Families Citing this family (3)
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| CN103173890A (en) * | 2013-04-11 | 2013-06-26 | 浙江华峰氨纶股份有限公司 | Preparation method of high monofilament cohesive force polyurethane elastic fiber |
| CN109734873B (en) * | 2019-01-02 | 2021-05-04 | 华峰化学股份有限公司 | Unwinding assistant for spandex with excellent unwinding performance and preparation and application methods thereof |
| CN112210860B (en) * | 2020-10-12 | 2021-11-19 | 郑州中远氨纶工程技术有限公司 | Preparation method of anti-skidding spandex core-spun yarn suitable for denim fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1089821C (en) * | 1997-02-13 | 2002-08-28 | 旭化成株式会社 | Elastic polyurethane fiber and process for producing same |
| JP2004270091A (en) * | 2003-03-11 | 2004-09-30 | Nof Corp | Magnesium stearate for elastic fiber and method for producing the same |
| CN101597864B (en) * | 2009-06-26 | 2011-09-07 | 北京光华纺织集团有限公司 | Polyurethane fiber dry spinning oil agent and preparation method thereof |
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Address after: 312000 office building 339, Yue Wang Road, Shaoxing, Zhejiang (block A) Patentee after: Zhejiang Zhongbai Special Fiber Co.,Ltd. Address before: 312000 east two road, Shaoxing, Zhejiang province. Patentee before: Zhejiang Kaipute Spandex Co.,Ltd. |
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Denomination of invention: A preparation method for spandex fibers suitable for high-speed unwinding Effective date of registration: 20230426 Granted publication date: 20131023 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: Zhejiang Zhongbai Special Fiber Co.,Ltd. Registration number: Y2023330000800 |
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Granted publication date: 20131023 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: Zhejiang Zhongbai Special Fiber Co.,Ltd. Registration number: Y2023330000800 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method for spandex fibers suitable for high-speed unwinding Granted publication date: 20131023 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: Zhejiang Zhongbai Special Fiber Co.,Ltd. Registration number: Y2024330000560 |
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