CN101280472A - Special-shaped monofilament section and production method thereof - Google Patents
Special-shaped monofilament section and production method thereof Download PDFInfo
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- CN101280472A CN101280472A CNA2008100251502A CN200810025150A CN101280472A CN 101280472 A CN101280472 A CN 101280472A CN A2008100251502 A CNA2008100251502 A CN A2008100251502A CN 200810025150 A CN200810025150 A CN 200810025150A CN 101280472 A CN101280472 A CN 101280472A
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- caprolactam
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- shaped monofilament
- deionized water
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Abstract
The invention discloses a special-shaped monofilament section and the production method of the special-shaped monofilament section, which is in particular the section used for the production of special-shaped monofilament and the production method of the special-shaped monofilament. The lactam, barium sulfate, benzoic acid, deionized water and other raw materials are used. First the barium sulfate and deionized water of 50% are put together and mixed evenly to be in the formation of an additive A. And then the benzoic acid and the lactam of 10% are put together and mixed evenly to be in the formation of an additive B. Afterwards, the rest of lactam and the remaining of deionized water are put together and mixed into a solution C. The additive A and B are added into the solution C and mixed into a solution D. Then, the solution D is in sequent poly-reaction to be in the formation of a high lactam polymer. A metering pump is used to pump the high lactam polymer into an underwater cutter and the high lactam polymer is cut into particles. The particles are washed and extracted through an extraction column, and the extracted particles are blown dry with nitrogen to be in the formation of the special-shaped monofilament section. With the use of such special-shaped monofilament section, the silk span out has better quality.
Description
Technical field
The present invention relates to a kind of chemical fibre spinning material and production method thereof.Specifically, be section and the production method thereof that is used for producing special-shaped monofilament.
Background technology
At present, be used for producing the section of special-shaped monofilament mainly by caprolactam, adipic acid and deionized water.Adipic acid wherein is a chain stopper.Because the boiling temperature of adipic acid is higher and up to 330 ℃, need the temperature of reaction just high.Realize that the condition of requirement is also high to high molecular only chain effect, make the molecular weight distribution of polymer be difficult to control, relative viscosity can only be controlled between 0.02～0.03, thereby makes the relative viscosity distributing homogeneity of polymer relatively poor.Therefore, during with this special-shaped monofilament section spinning, occur lousiness and broken end easily, product quality is relatively poor.
Summary of the invention
The problem to be solved in the present invention provides a kind of special-shaped monofilament section.Use this special-shaped monofilament section, spun yarn quality is better.
Another problem that the present invention will solve provides a kind of method of producing special-shaped monofilament section.
For addressing the above problem, take following technical scheme:
Special-shaped monofilament section characteristics of the present invention are to contain following raw material: caprolactam, barium sulfate, benzoic acid and deionized water.Wherein, the weight proportion of each raw material is: 95～101 parts of caprolactams; 0.12～0.17 part in barium sulfate; 0.10～0.14 part in benzoic acid; 2～3 parts of deionized waters.
Producing special-shaped monofilament section method of the present invention may further comprise the steps successively:
(1) deionized water of barium sulfate and 50% is put together, mix, make auxiliary agent A;
(2) caprolactam of benzoic acid and 10% is put together, mix, make auxiliary agent B;
(3) caprolactam and the remaining deionized water of remainder are put together, under 75～83 ℃ temperature and nitrogen protection, mix, make solution C;
(4) auxiliary agent A and auxiliary agent B are added in the solution C, and under 75～83 ℃ temperature and nitrogen protection, mix, make solution D;
(5) solution D is pumped in the polyplant, polymerisation is 18～24 hours under 260～275 ℃ temperature, obtains the caprolactam high polymer;
(6) with measuring pump the caprolactam high polymer being pumped into temperature is in 13～17 ℃ the underwater pelletizer, cooled caprolactam high polymer is cut into the particle of 100～120/gram by underwater pelletizer;
(7) particle is pumped in the extraction tower that deionized water is housed with slush pump, under 100～105 ℃ temperature, washed 17～18 hours, remove the caprolactam monomer that polymerization does not take place in the particle, make the caprolactam content in the particle be lower than 0.6 weight %;
(8) with temperature be 120～125 ℃ nitrogen will through the extraction particle dry up, make its moisture content less than 0.05 weight %, obtain special-shaped monofilament section.
Take above scheme, have the following advantages:
Because special-shaped monofilament section of the present invention contains raw materials such as caprolactam, barium sulfate, benzoic acid and deionized water.Chain stopper wherein is a benzoic acid, and benzoic boiling point lower, have only 153 ℃.Realize that required condition is just low, makes the molecular weight distribution of polymer control easily to high molecular only chain effect, the relative viscosity of particle can be controlled in below 0.01, thereby the relative viscosity distributing homogeneity of polymer is improved greatly.Therefore, during with this special-shaped monofilament section spinning, can reduce the generation of lousiness and broken end phenomenon, product quality is higher.
The specific embodiment
Embodiment one:
Choose 95 parts caprolactam, 0.12 part barium sulfate, 0.10 part benzoic acid and 2 parts deionized water earlier, stand-by.
Then, the deionized water of barium sulfate and 50% is put together, mix, make auxiliary agent A.
Afterwards, the caprolactam of benzoic acid and 10% is put together, mix, make auxiliary agent B.
Afterwards, the caprolactam and the remaining deionized water of remainder are put together, under 75 ℃ temperature and nitrogen protection, mix, make solution C.
Afterwards, auxiliary agent A and auxiliary agent B are added in the solution C, and under 75 ℃ temperature and nitrogen protection, mix, make solution D.
Afterwards, solution D is pumped in the polyplant, polymerisation is 18 hours under 260 ℃ temperature, obtains the caprolactam high polymer.
Afterwards, with measuring pump the caprolactam high polymer being pumped into temperature is in 13 ℃ the underwater pelletizer, cooled caprolactam high polymer is cut into the particle of 100/gram by underwater pelletizer.
Again, particle is pumped in the extraction tower that deionized water is housed with slush pump, washing is 17 hours under 100 ℃ temperature, removes the caprolactam monomer that polymerization does not take place in the particle, makes the caprolactam content in the particle be lower than 0.6 weight %;
At last, with temperature be 120 ℃ nitrogen will through the extraction particle dry up, make its moisture content less than 0.05 weight %, obtain special-shaped monofilament section.
Embodiment two:
Choose 98 parts caprolactam, 0.15 part barium sulfate, 0.12 part benzoic acid and 2.5 parts deionized water earlier, stand-by.
Then, the deionized water of barium sulfate and 50% is put together, mix, make auxiliary agent A.
Afterwards, the caprolactam of benzoic acid and 10% is put together, mix, make auxiliary agent B.
Afterwards, the caprolactam and the remaining deionized water of remainder are put together, under 79 ℃ temperature and nitrogen protection, mix, make solution C.
Afterwards, auxiliary agent A and auxiliary agent B are added in the solution C, and under 79 ℃ temperature and nitrogen protection, mix, make solution D.
Afterwards, solution D is pumped in the polyplant, polymerisation is 20 hours under 268 ℃ temperature, obtains the caprolactam high polymer.
Afterwards, with measuring pump the caprolactam high polymer being pumped into temperature is in 15 ℃ the underwater pelletizer, cooled caprolactam high polymer is cut into the particle of 110/gram by underwater pelletizer.
Again, particle is pumped in the extraction tower that deionized water is housed with slush pump, washing is 17.5 hours under 102 ℃ temperature, removes the caprolactam monomer that polymerization does not take place in the particle, makes the caprolactam content in the particle be lower than 0.6 weight %;
At last, with temperature be 123 ℃ nitrogen will through the extraction particle dry up, make its moisture content less than 0.05 weight %, obtain special-shaped monofilament section.
Embodiment three:
Choose 101 parts caprolactam, 0.17 part barium sulfate, 0.14 part benzoic acid and 3 parts deionized water earlier, stand-by.
Then, the deionized water of barium sulfate and 50% is put together, mix, make auxiliary agent A.
Afterwards, the caprolactam of benzoic acid and 10% is put together, mix, make auxiliary agent B.
Afterwards, the caprolactam and the remaining deionized water of remainder are put together, under 83 ℃ temperature and nitrogen protection, mix, make solution C.
Afterwards, auxiliary agent A and auxiliary agent B are added in the solution C, and under 83 ℃ temperature and nitrogen protection, mix, make solution D.
Afterwards, solution D is pumped in the polyplant, polymerisation is 24 hours under 275 ℃ temperature, obtains the caprolactam high polymer.
Afterwards, with measuring pump the caprolactam high polymer being pumped into temperature is in 17 ℃ the underwater pelletizer, cooled caprolactam high polymer is cut into the particle of 120/gram by underwater pelletizer.
Again, particle is pumped in the extraction tower that deionized water is housed with slush pump, washing is 18 hours under 105 ℃ temperature, removes the caprolactam monomer that polymerization does not take place in the particle, makes the caprolactam content in the particle be lower than 0.6 weight %;
At last, with temperature be 125 ℃ nitrogen will through the extraction particle dry up, make its moisture content less than 0.05 weight %, obtain special-shaped monofilament section.
Claims (3)
1. a special-shaped monofilament section is characterized in that containing following raw material: caprolactam, barium sulfate, benzoic acid and deionized water.
2. special-shaped monofilament section according to claim 1 is characterized in that the weight proportion of each raw material is:
95～101 parts of caprolactams;
0.12～0.17 part in barium sulfate;
0.10～0.14 part in benzoic acid;
2～3 parts of deionized waters.
3. the method for the described special-shaped monofilament section of production claim 1 is characterized in that may further comprise the steps successively:
(1) deionized water of barium sulfate and 50% is put together, mix, make auxiliary agent A;
(2) caprolactam of benzoic acid and 10% is put together, mix, make auxiliary agent B;
(3) caprolactam and the remaining deionized water of remainder are put together, under 75～83 ℃ temperature and nitrogen protection, mix, make solution C;
(4) auxiliary agent A and auxiliary agent B are added in the solution C, and under 75～83 ℃ temperature and nitrogen protection, mix, make solution D;
(5) solution D is pumped in the polyplant, polymerisation is 18～24 hours under 260～275 ℃ temperature, obtains the caprolactam high polymer;
(6) with measuring pump the caprolactam high polymer being pumped into temperature is in 13～17 ℃ the underwater pelletizer, cooled caprolactam high polymer is cut into the particle of 100～120/gram by underwater pelletizer;
(7) particle is pumped in the extraction tower that deionized water is housed with slush pump, under 100～105 ℃ temperature, washed 17～18 hours, remove the caprolactam monomer that polymerization does not take place in the particle, make the caprolactam content in the particle be lower than 0.6 weight %;
(8) with temperature be 120～125 ℃ nitrogen will through the extraction particle dry up, make its moisture content less than 0.05 weight %, obtain special-shaped monofilament section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100251502A CN101280472B (en) | 2008-04-24 | 2008-04-24 | Special-shaped monofilament section and production method thereof |
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| CN2008100251502A CN101280472B (en) | 2008-04-24 | 2008-04-24 | Special-shaped monofilament section and production method thereof |
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| CN101280472A true CN101280472A (en) | 2008-10-08 |
| CN101280472B CN101280472B (en) | 2010-08-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675628A (en) * | 2012-04-25 | 2012-09-19 | 广东新会美达锦纶股份有限公司 | High-speed spinning bright nylon 6 slice and manufacturing method thereof |
| CN106263062A (en) * | 2016-09-30 | 2017-01-04 | 深圳市六月玫瑰内衣科技有限公司 | A kind of three-dimensional jacquard weave bra and preparation method thereof |
| CN109111569A (en) * | 2018-06-22 | 2019-01-01 | 天津长芦海晶集团有限公司 | Applied to the acid solution and its concocting method and adding method in PA6 production process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050278B (en) * | 2007-04-18 | 2010-12-08 | 沈有清 | Half dullspon slices of caprone and production method |
| CN101050279B (en) * | 2007-05-09 | 2010-05-19 | 武汉森大科技研究发展中心 | Production technique and equipment for polymerizing polyamide |
-
2008
- 2008-04-24 CN CN2008100251502A patent/CN101280472B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675628A (en) * | 2012-04-25 | 2012-09-19 | 广东新会美达锦纶股份有限公司 | High-speed spinning bright nylon 6 slice and manufacturing method thereof |
| CN106263062A (en) * | 2016-09-30 | 2017-01-04 | 深圳市六月玫瑰内衣科技有限公司 | A kind of three-dimensional jacquard weave bra and preparation method thereof |
| CN106263062B (en) * | 2016-09-30 | 2018-06-15 | 宏杰内衣股份有限公司 | A kind of three-dimensional jacquard weave brassiere and preparation method thereof |
| CN109111569A (en) * | 2018-06-22 | 2019-01-01 | 天津长芦海晶集团有限公司 | Applied to the acid solution and its concocting method and adding method in PA6 production process |
| CN109111569B (en) * | 2018-06-22 | 2020-09-01 | 天津长芦海晶集团有限公司 | Acid solution applied to PA6 production process and preparation method and addition method thereof |
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| CN101280472B (en) | 2010-08-11 |
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