CN114000221A - Preparation method of uniformly dyed PBT high stretch yarn - Google Patents
Preparation method of uniformly dyed PBT high stretch yarn Download PDFInfo
- Publication number
- CN114000221A CN114000221A CN202111172534.9A CN202111172534A CN114000221A CN 114000221 A CN114000221 A CN 114000221A CN 202111172534 A CN202111172534 A CN 202111172534A CN 114000221 A CN114000221 A CN 114000221A
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- Prior art keywords
- pbt
- polyester
- pbt polyester
- yarn
- putting
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/06—Dyes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a preparation method of uniformly dyed PBT high stretch yarn, which comprises the following steps: putting phthalic acid and butanediol into an esterification reactor, adding tetrabutyl titanate and dimethyl isophthalate-5-sodium sulfonate for reaction, putting a reaction product of S1 into a reaction kettle, stirring the reaction product to perform polycondensation reaction to prepare PBT polyester, slicing the PBT polyester in S2, drying to obtain PBT polyester slices, putting the PBT polyester slices into a screw extruder for extrusion, filtering to obtain a PBT polyester extrusion material, putting a dyeing material into a first heating vessel for heating, and then performing heat preservation. The PBT polyester material is subjected to polycondensation, slicing, drying and filtering, then is heated, and is fully stirred and mixed with the dyeing material, so that the problem that the conventional PBT high stretch yarn is low in utilization rate due to the fact that the conventional PBT high stretch yarn is not dyed uniformly in use is solved.
Description
Technical Field
The invention relates to the field of preparation methods of PBT (polybutylene terephthalate) high stretch yarns, in particular to a preparation method of a PBT high stretch yarn with uniform dyeing.
Background
PBT is a milky translucent to opaque, semi-crystalline thermoplastic polyester. The PBT high-elasticity yarn has high heat resistance, can work at 140 ℃ for a long time, has toughness, fatigue resistance, self-lubrication, low friction coefficient, no strong acid and strong alkali resistance, can resist organic solvents, is combustible and can be decomposed at high temperature, the PBT high-elasticity yarn is the PBT high-elasticity yarn which is most frequently used in PBT materials, has excellent elastic recovery performance and elastic stability, has elasticity superior to nylon, has chemical resistance better than spandex, does not need a carrier to be dyeable at normal temperature and normal pressure, has high dyeing fastness, good size stability, pilling resistance and antistatic property, and has price far lower than that of the spandex.
The existing PBT high stretch yarn is often used to cause the problem of low utilization rate of the PBT high stretch yarn due to the fact that the PBT high stretch yarn is not dyed uniformly, so a preparation method of the PBT high stretch yarn dyed uniformly is provided for solving the problem.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of uniformly dyed PBT high stretch yarn.
The invention provides a preparation method of uniformly dyed PBT high stretch yarn, which comprises the following steps:
s1: placing phthalic acid and butanediol into an esterification reactor, and adding tetrabutyl titanate and dimethyl isophthalate-5-sodium sulfonate for reaction;
s2: placing the reaction product of S1 in a reaction kettle, and stirring the reaction product to perform polycondensation reaction to prepare PBT polyester;
s3: slicing the PBT polyester in the S2, and then drying to obtain the PBT polyester slice
S4: putting the PBT polyester chip into a screw extruder for extrusion, and then filtering to obtain a PBT polyester extrusion material;
s5: placing the dyeing material into a first heating vessel for heating, and then carrying out heat preservation;
s6: placing the PBT polyester extrusion material into a second heating vessel for heating;
s7: putting the glass fiber, the flame retardant and the PBT polyester extrusion material in the S4 into a stirrer, and stirring and mixing to realize dyeing;
s8: putting the PBT polyester in the S7 into a screw type spinning machine for melt spinning, and carrying out cooling, oiling, balancing, yarn winding and stretching treatment;
s9: adding the PBT polyester in the S8 into a sieving machine, sieving the PBT polyester, and then drying;
s10: the PBT polyester in S9 is put into a false twister, false twisted by the false twister and heated and deformed into the spiral ring type PBT high stretch yarn with uniform dyeing.
Preferably, in the step S3, the heating temperature of the first heating vessel is 143 to 147 ℃.
Preferably, in step S4, the heating temperature of the second heating vessel is 243 to 277 ℃.
Preferably, in the step S7, the dyeing time is 2.3 to 3.2 hours.
Preferably, in the step S9, the drying temperature is 180 to 198 ℃, and the drying time is 0.8 to 1.5 hours.
Preferably, in the step S8, the drawing magnification is 1.5 to 1.7 times, and the drawing temperature of the PBT high-stretch yarn is 220 to 210 ℃.
Preferably, in the step S7, the rotation speed of the stirrer is 800-900 r/min, and the stirring and mixing time is 20-35 min.
Preferably, in the step S2, the time of the polycondensation reaction is 1.3 to 2.1 hours.
The preparation method of the PBT high stretch yarn with uniform dyeing has the beneficial effects that:
1. the PBT polyester material is heated after being subjected to polycondensation, slicing, drying and filtering, and then is fully stirred and mixed with the dyeing material, so that the problem that the conventional PBT high stretch yarn is low in utilization rate due to the fact that the conventional PBT high stretch yarn is not dyed uniformly in use is solved;
2. the flame retardant is added during the dyeing work of the PBT polyester, so that the ignition point of the PBT polyester is improved, and the use safety is improved;
3. the PBT polyester after wire drawing is screened, so that the quality of finished products is ensured.
Detailed Description
The present invention will be further described with reference to specific embodiments, and it should be understood that the described embodiments are only a few, but not all, of the embodiments of the present invention.
The preparation method of the PBT high stretch yarn with uniform dyeing comprises the following steps:
s1: placing phthalic acid and butanediol into an esterification reactor, and adding tetrabutyl titanate and dimethyl isophthalate-5-sodium sulfonate for reaction;
s2: placing the reaction product of S1 in a reaction kettle, and stirring the reaction product to perform polycondensation reaction to prepare PBT polyester;
s3: slicing the PBT polyester in the S2, and then drying to obtain the PBT polyester slice
S4: putting the PBT polyester slices into a screw extruder for extrusion, and then filtering to obtain a PBT polyester extrusion material;
s5: placing the dyeing material into a first heating vessel for heating, and then carrying out heat preservation;
s6: placing the PBT polyester extrusion material into a second heating vessel for heating;
s7: putting the glass fiber, the flame retardant and the PBT polyester extrusion material in the S4 into a stirrer, and stirring and mixing to realize dyeing;
s8: putting the PBT polyester in the S7 into a screw type spinning machine for melt spinning, and carrying out cooling, oiling, balancing, yarn winding and stretching treatment;
s9: adding the PBT polyester in the S8 into a sieving machine, sieving the PBT polyester, and then drying;
s10: the PBT polyester in S9 is put into a false twister, false twisted by the false twister and heated and deformed into the spiral ring type PBT high stretch yarn with uniform dyeing.
In this embodiment, in step S3, the heating temperature of the first heating vessel is 143 to 147 ℃.
In this embodiment, in step S4, the heating temperature of the second heating vessel is 243 to 277 ℃.
In this embodiment, in step S7, the dyeing time is 2.3-3.2 hours.
In this embodiment, in step S9, the drying temperature is 180-198 ℃, and the drying time is 0.8-1.5 h.
In this embodiment, in step S8, the drawing magnification is 1.5 to 1.7 times, and the drawing temperature of the PBT high stretch yarn is 220 to 210 ℃.
In this embodiment, in step S7, the rotation speed of the stirrer is 800 to 900r/min, and the stirring and mixing time is 20 to 35 min.
In this embodiment, in step S2, the time of the polycondensation reaction is 1.3 to 2.1 hours.
Claims (8)
1. The preparation method of the PBT high stretch yarn with uniform dyeing is characterized by comprising the following steps:
s1: placing phthalic acid and butanediol into an esterification reactor, and adding tetrabutyl titanate and dimethyl isophthalate-5-sodium sulfonate for reaction;
s2: placing the reaction product of S1 in a reaction kettle, and stirring the reaction product to perform polycondensation reaction to prepare PBT polyester;
s3: slicing the PBT polyester in the S2, and then drying to obtain the PBT polyester slice
S4: putting the PBT polyester chip into a screw extruder for extrusion, and then filtering to obtain a PBT polyester extrusion material;
s5: placing the dyeing material into a first heating vessel for heating, and then carrying out heat preservation;
s6: placing the PBT polyester extrusion material into a second heating vessel for heating;
s7: putting the glass fiber, the flame retardant and the PBT polyester extrusion material in the S4 into a stirrer, and stirring and mixing to realize dyeing;
s8: putting the PBT polyester in the S7 into a screw type spinning machine for melt spinning, and carrying out cooling, oiling, balancing, yarn winding and stretching treatment;
s9: adding the PBT polyester in the S8 into a sieving machine, sieving the PBT polyester, and then drying;
s10: the PBT polyester in S9 is put into a false twister, false twisted by the false twister and heated and deformed into the spiral ring type PBT high stretch yarn with uniform dyeing.
2. The method for preparing PBT high elastic yarn with uniform dyeing according to claim 1, wherein in the step S3, the heating temperature of the first heating vessel is 143-147 ℃.
3. The method for preparing PBT high elastic yarn with uniform dyeing according to claim 1, wherein in the step S4, the heating temperature of the second heating vessel is 243-277 ℃.
4. The method for preparing the PBT high elastic yarn with uniform dyeing according to claim 1, wherein the dyeing time in the step S7 is 2.3-3.2 h.
5. The method for preparing the PBT high elastic yarn with uniform dyeing according to claim 1, wherein in the step S9, the drying temperature is 180-198 ℃, and the drying time is 0.8-1.5 h.
6. The method for preparing the PBT elastomeric yarn with uniform dyeing according to claim 1, wherein in the step S8, the drawing magnification is 1.5-1.7 times, and the temperature for drawing the PBT elastomeric yarn is 220-210 ℃.
7. The method for preparing the PBT high stretch yarn with uniform dyeing according to claim 1, wherein in the step S7, the rotating speed of the stirrer is 800-900 r/min, and the stirring and mixing time is 20-35 min.
8. The method for preparing PBT high elastic yarn with uniform dyeing according to claim 1, wherein in step S2, the polycondensation reaction time is 1.3-2.1 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172534.9A CN114000221A (en) | 2021-10-08 | 2021-10-08 | Preparation method of uniformly dyed PBT high stretch yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172534.9A CN114000221A (en) | 2021-10-08 | 2021-10-08 | Preparation method of uniformly dyed PBT high stretch yarn |
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| Publication Number | Publication Date |
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| CN114000221A true CN114000221A (en) | 2022-02-01 |
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| CN202111172534.9A Pending CN114000221A (en) | 2021-10-08 | 2021-10-08 | Preparation method of uniformly dyed PBT high stretch yarn |
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Citations (9)
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|---|---|---|---|---|
| CN202666499U (en) * | 2012-05-23 | 2013-01-16 | 安徽丹凤集团桐城玻璃纤维有限公司 | Filtering device for sizing used in glass fiber drawing |
| CN103232686A (en) * | 2013-04-30 | 2013-08-07 | 东莞市百思特塑胶有限公司 | Enhanced flame-retardant environmentally-friendly PBT (Polybutylece Terephthalate) with high CTI (Comparative Tracking Index) and high glowing filament |
| CN103451758A (en) * | 2013-09-17 | 2013-12-18 | 浙江格尔泰斯环保特材科技有限公司 | Polytetrafluoroethylene ultrafine fiber |
| CN103525023A (en) * | 2012-07-02 | 2014-01-22 | 青岛欣展塑胶有限公司 | Modified PBT (polybutylece terephthalate) material and preparation method thereof |
| CN105088390A (en) * | 2015-09-02 | 2015-11-25 | 太仓市宏亿化纤有限公司 | Preparation method of uniformly dyed PBT high stretch yarn |
| CN105113046A (en) * | 2015-09-02 | 2015-12-02 | 太仓市宏亿化纤有限公司 | Production process of modified halogen-free flame retardant PBT |
| CN107557898A (en) * | 2017-09-28 | 2018-01-09 | 太仓市洪宇新材料科技有限公司 | A kind of cationic dye capable of dyeing PBT fibre manufacturing techniques |
| CN109438933A (en) * | 2018-11-09 | 2019-03-08 | 四川长虹电器股份有限公司 | Modified enhancing flame-retardant PBT material and preparation method thereof |
| CN112251837A (en) * | 2020-11-03 | 2021-01-22 | 太仓荣文合成纤维有限公司 | Preparation method of uniformly dyed PBT high stretch yarn |
-
2021
- 2021-10-08 CN CN202111172534.9A patent/CN114000221A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202666499U (en) * | 2012-05-23 | 2013-01-16 | 安徽丹凤集团桐城玻璃纤维有限公司 | Filtering device for sizing used in glass fiber drawing |
| CN103525023A (en) * | 2012-07-02 | 2014-01-22 | 青岛欣展塑胶有限公司 | Modified PBT (polybutylece terephthalate) material and preparation method thereof |
| CN103232686A (en) * | 2013-04-30 | 2013-08-07 | 东莞市百思特塑胶有限公司 | Enhanced flame-retardant environmentally-friendly PBT (Polybutylece Terephthalate) with high CTI (Comparative Tracking Index) and high glowing filament |
| CN103451758A (en) * | 2013-09-17 | 2013-12-18 | 浙江格尔泰斯环保特材科技有限公司 | Polytetrafluoroethylene ultrafine fiber |
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| CN105113046A (en) * | 2015-09-02 | 2015-12-02 | 太仓市宏亿化纤有限公司 | Production process of modified halogen-free flame retardant PBT |
| CN107557898A (en) * | 2017-09-28 | 2018-01-09 | 太仓市洪宇新材料科技有限公司 | A kind of cationic dye capable of dyeing PBT fibre manufacturing techniques |
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