CN1958912A - Not weaving fabric of superfine fiber of diester polyterephthalate, and fabricating method - Google Patents
Not weaving fabric of superfine fiber of diester polyterephthalate, and fabricating method Download PDFInfo
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- CN1958912A CN1958912A CN 200610117088 CN200610117088A CN1958912A CN 1958912 A CN1958912 A CN 1958912A CN 200610117088 CN200610117088 CN 200610117088 CN 200610117088 A CN200610117088 A CN 200610117088A CN 1958912 A CN1958912 A CN 1958912A
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- polybutylene terephthalate
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Abstract
The present invention belongs to the field of textile technology, and discloses a kind of polyteramethylene terephthalate ultra-fine fiber nonwoven fabric and its production method. The average diameter of said ultra-fine fibre is .35-8.21 microns. It is made up by bonding the polyteramethylene terephthalate ultra-fine fibers together, and its production method includes the following steps: drying chips, melt-extruding, air-drawing and web-bonding, etc.
Description
Technical field
The invention belongs to field of textiles, it relates to a kind of polybutylene terephthalate not weaving fabric of superfine fiber and manufacture method thereof.
Background technology
Melt-blown non-woven processing is after polymer chips becomes molten condition by the extruder heating and pressurizing, distribute runner to extrude through melt from the spinneret orifice of shower nozzle front end, high-speed and high-temperature air drawing through two bursts of convergences makes it super-refinement again, cooling curing is deposited on and receives on the cylinder, forms the process of non-weaving cloth.This method has been used for the manufacturing of the non-weaving cloth of thermoplastic resin raw materials such as polypropylene.But, the present polypropylene melt-blown nonwoven fabric of processing, because its hydrophily is relatively poor, surface wettability is relatively poor, this has just caused, and its filter effect is relatively poor, not high enough on the filter efficiency.And the polybutylene terephthalate melt-blowing nonwoven has the structure of superfine fibre and fine sharp edges, fiber specific surface area is big, can form many micro-pores between the fiber, even pore distribution, especially there is good selection adsorptivity in the functional group in this material to leucocyte, thereby be suitable as very much blood filter material, and can produce good social benefit and economic benefit, have vast potential for future development.
Summary of the invention
The technical issues that need to address of the present invention are at the deficiencies in the prior art, and a kind of polybutylene terephthalate not weaving fabric of superfine fiber and manufacture method thereof are provided.
Technical scheme of the present invention is:
A kind of polybutylene terephthalate not weaving fabric of superfine fiber is characterized in that average fibre diameter is that the polybutylene terephthalate superfine fibre of 3.35 ~ 8.21 μ m is bonded together and forms, and its mass area ratio is 45.7 ~ 96.4g/m
2, thickness is 0.28 ~ 1.04mm, and the fibre web average pore size is 12.429 ~ 31.076 μ m, and longitudinal strength is 6.95 ~ 14.69MPa, and transverse strength is 2.83 ~ 6.44MPa.
The manufacture method of described polybutylene terephthalate not weaving fabric of superfine fiber comprises section drying step, melt extrude step, air drawing step and fibre web are reinforced step 4, the process conditions that it is characterized in that described section drying step 1 are that the temperature of its drying machine adopts 140 ~ 180 ℃, the section criteria thus the drying time adopted 4 ~ 8 hours, the screw speed that the described process conditions that melt extrude step 2 are its screw extruder is 1.8 ~ 5.3rpm, screw rod one district, two districts, three districts, four districts, five districts, the temperature in six districts adopts 200 ~ 290 ℃ respectively, 360 ~ 390 ℃, 380 ~ 430 ℃, 385 ~ 430 ℃, 385 ~ 430 ℃, 380 ~ 430 ℃, melt and spray nozzle temperature and adopt 230 ~ 290 ℃, the process conditions of described air drawing step 3 are that the pressure of its stretching air adopts 0.10 ~ 0.54MPa, the temperature of stretching air adopts 260 ~ 340 ℃, the receiving range that melts and sprays shower nozzle and receive between the cylinder is 8 ~ 15cm, the process conditions that described fibre web is reinforced step 4 adopt 30 ~ 45cm/min for its speed of traversing of accepting cylinder, and reciprocal time adopts 2 ~ 10 times.
The invention has the beneficial effects as follows: the invention solves and how to adopt the polybutylene terephthalate raw material to make the problem of not weaving fabric of superfine fiber, polybutylene terephthalate not weaving fabric of superfine fiber fiber super-refinement of the present invention, good springiness, leucocyte there are good selection adsorptivity, filter efficiency height, can produce good social benefit and economic benefit, have vast potential for future development.
The specific embodiment
Below in conjunction with specific embodiment the present invention is further elaborated.
Embodiment 1
By the included section drying step 1 of the method for above-mentioned manufacturing polybutylene terephthalate not weaving fabric of superfine fiber of the present invention, melt extrude the process conditions that step 2, air drawing step 3 and fibre web are reinforced each procedure of processing of step 4 and adopted following each procedure of processing:
(1) polybutylene terephthalate section drying 8 hours under 140 ℃ of temperature;
(2) screw speed of screw extruder is 1.8rpm, and the temperature in screw rod one district, two districts, three districts, four districts, five districts, six districts adopts 290 ℃, 390 ℃, 430 ℃, 430 ℃, 430 ℃, 430 ℃ respectively, melts and sprays nozzle temperature and adopts 290 ℃;
(3) pressure of stretching air adopts 0.52MPa, and the temperature of stretching air adopts 340 ℃, and receiving range is 15cm;
(4) speed of traversing of cylinder adopts 45cm/min, and reciprocal time adopts 2 times.
Average fibre diameter is 3.35 μ m, and mass area ratio is 45.7g/m
2, thickness is 0.28mm, and the fibre web average pore size is 12.429 μ m, and longitudinal strength is 6.95MPa, and transverse strength is 2.83MPa.
Embodiment 2
By the included section drying step 1 of the method for above-mentioned manufacturing polybutylene terephthalate not weaving fabric of superfine fiber of the present invention, melt extrude the process conditions that step 2, air drawing step 3 and fibre web are reinforced each procedure of processing of step 4 and adopted following each procedure of processing:
(1) polybutylene terephthalate section drying 6 hours under 160 ℃ of temperature;
(2) screw speed of screw extruder is 3.2rpm, and the temperature in screw rod one district, two districts, three districts, four districts, five districts, six districts adopts 270 ℃, 360 ℃, 390 ℃, 390 ℃, 400 ℃, 400 ℃ respectively, melts and sprays nozzle temperature and adopts 270 ℃;
(3) pressure of stretching air adopts 0.30MPa, and the temperature of stretching air adopts 300 ℃, and receiving range is 15cm;
(4) speed of traversing of cylinder adopts 40cm/min, and reciprocal time adopts 6 times.
Average fibre diameter is 4.93 μ m, and mass area ratio is 84.5g/m
2, thickness is 0.78mm, and the fibre web average pore size is 18.137 μ m, and longitudinal strength is 10.71MPa, and transverse strength is 4.28MPa.
Embodiment 3
By the included section drying step 1 of the method for above-mentioned manufacturing polybutylene terephthalate not weaving fabric of superfine fiber of the present invention, melt extrude the process conditions that step 2, air drawing step 3 and fibre web are reinforced each procedure of processing of step 4 and adopted following each procedure of processing:
(1) polybutylene terephthalate section drying 4 hours under 180 ℃ of temperature;
(2) screw speed of screw extruder is 5.3rpm, and the temperature in screw rod one district, two districts, three districts, four districts, five districts, six districts adopts 200 ℃, 360 ℃, 380 ℃, 380 ℃, 380 ℃, 380 ℃ respectively, melts and sprays nozzle temperature and adopts 230 ℃;
(3) pressure of stretching air adopts 0.10MPa, and the temperature of stretching air adopts 260 ℃, and receiving range is 8cm;
(4) speed of traversing of cylinder adopts 30cm/min, and reciprocal time adopts 10 times.
Average fibre diameter is 8.21 μ m, and mass area ratio is 96.4g/m
2, thickness is 1.04mm, and the fibre web average pore size is 31.076 μ m, and longitudinal strength is 14.69MPa, and transverse strength is 6.44MPa.
Claims (6)
1. a polybutylene terephthalate not weaving fabric of superfine fiber is characterised in that, it is that the polybutylene terephthalate superfine fibre of 3.35 ~ 8.21 μ m is bonded together and forms by average fibre diameter mainly, and its mass area ratio is 45.7 ~ 96.4g/m
2, thickness is 0.28 ~ 1.04mm, and the fibre web average pore size is 12.429 ~ 31.076 μ m, and longitudinal strength is 6.95 ~ 14.69MPa, and transverse strength is 2.83 ~ 6.44MPa.
2. the manufacture method of a polybutylene terephthalate not weaving fabric of superfine fiber comprises section drying step (1), melt extrudes step (2), air drawing step (3) and fibre web reinforcing step (4).
3. polybutylene terephthalate not weaving fabric of superfine fiber manufacture method according to claim 2 is characterized in that, the process conditions of described section drying step (1) are that the temperature of drying machine is 140 ~ 180 ℃, and the section criteria thus the drying time is 4 ~ 8 hours.
4. polybutylene terephthalate not weaving fabric of superfine fiber manufacture method according to claim 2, it is characterized in that the screw speed that the described process conditions that melt extrude step (2) are screw extruders is 1.8 ~ 5.3rpm, the temperature in screw rod one district, two districts, three districts, four districts, five districts, six districts is respectively 200 ~ 290 ℃, 360 ~ 390 ℃, 380 ~ 430 ℃, 380 ~ 430 ℃, 380 ~ 430 ℃, 380 ~ 430 ℃, melts and sprays nozzle temperature and adopts 230 ~ 290 ℃.
5. polybutylene terephthalate not weaving fabric of superfine fiber manufacture method according to claim 2, the process conditions that it is characterized in that described air drawing step (3) are that the pressure of stretching air is 0.10 ~ 0.52MPa, the temperature of stretching air is 260 ~ 340 ℃, and the receiving range that melts and sprays between shower nozzle and the reception cylinder is 8 ~ 15cm.
6. polybutylene terephthalate not weaving fabric of superfine fiber manufacture method according to claim 2, it is characterized in that it is that the speed of traversing of accepting cylinder is 30 ~ 45cm/min that described fibre web is reinforced the process conditions of step (4), reciprocal time adopts 2 ~ 10 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610117088 CN1958912A (en) | 2006-10-13 | 2006-10-13 | Not weaving fabric of superfine fiber of diester polyterephthalate, and fabricating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610117088 CN1958912A (en) | 2006-10-13 | 2006-10-13 | Not weaving fabric of superfine fiber of diester polyterephthalate, and fabricating method |
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| Publication Number | Publication Date |
|---|---|
| CN1958912A true CN1958912A (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610117088 Pending CN1958912A (en) | 2006-10-13 | 2006-10-13 | Not weaving fabric of superfine fiber of diester polyterephthalate, and fabricating method |
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| CN (1) | CN1958912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696200A (en) * | 2016-03-03 | 2016-06-22 | 张家港高品诚医械科技有限公司 | Batch-type non-woven fabric melt-blowing method and non-woven fabric |
| CN105734834A (en) * | 2016-03-03 | 2016-07-06 | 张家港高品诚医械科技有限公司 | Continuous non-woven fabric melt-blowing method and non-woven fabric |
-
2006
- 2006-10-13 CN CN 200610117088 patent/CN1958912A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696200A (en) * | 2016-03-03 | 2016-06-22 | 张家港高品诚医械科技有限公司 | Batch-type non-woven fabric melt-blowing method and non-woven fabric |
| CN105734834A (en) * | 2016-03-03 | 2016-07-06 | 张家港高品诚医械科技有限公司 | Continuous non-woven fabric melt-blowing method and non-woven fabric |
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