US3743690A - Process for the production of monofilaments of polyamide 12 - Google Patents
Process for the production of monofilaments of polyamide 12 Download PDFInfo
- Publication number
- US3743690A US3743690A US00180838A US3743690DA US3743690A US 3743690 A US3743690 A US 3743690A US 00180838 A US00180838 A US 00180838A US 3743690D A US3743690D A US 3743690DA US 3743690 A US3743690 A US 3743690A
- Authority
- US
- United States
- Prior art keywords
- polyamide
- monofilament
- monofilaments
- cooling bath
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920000299 Nylon 12 Polymers 0.000 title abstract description 15
- 238000000034 method Methods 0.000 title abstract description 13
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 12
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000009987 spinning Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 4
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- TWQHGBJNKVFWIU-UHFFFAOYSA-N 8-[4-(4-quinolin-2-ylpiperazin-1-yl)butyl]-8-azaspiro[4.5]decane-7,9-dione Chemical compound C1C(=O)N(CCCCN2CCN(CC2)C=2N=C3C=CC=CC3=CC=2)C(=O)CC21CCCC2 TWQHGBJNKVFWIU-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/0885—Cooling filaments, threads or the like, leaving the spinnerettes by means of a liquid
Definitions
- Monofilaments of polyamide 6 and 6.6 are usually produced by the melt spinning process, spun with a certain dwell time in cold water and then wound via withdrawal rollers on spinning bobbins. These spinning bobbins are thereafter worked up further on drawing frames. In order to ensure troublefree stretching of the monofilaments, the following conditions must be most precisely observed:
- the cooling water must be as cold as possible (below (2)
- the dwell time of the freshly spun monofilament in the cooling bath must be sufiiciently long, so that the monofilament is sufficiently quenched.
- monofilaments of polyamide 12 can be produced without the above-mentioned drawbacks by melting the polyamide l2, extruding the same through spinnerets into a cooling bath of a liquid (preferably water) and winding, if a cooling bath containing water at 35-50 C. is employed and the dwell time of the monofilament in the water bath is kept at less than 1 second.
- the diameter of the monofilament obtained in this way is advantageously 0.08-0.15 mm.
- the temperature of the water bath should preferably be around 40 C. and the Patented July 3, 1973 "ice (1) absolutely compact bobbin structure without detachment of the cake from the bobbin core.
- the polyamide 12 monofilaments produced in this way meet all the requirements of textile testing.
- the proportion of waste on the drawing frame can be reduced from about 40% to less than 10% by this process, which signifies an unforeseeable considerable technical advance.
- the nnstretched filament (diameter 0.20 mm.) was then stretched on a draw-winder at a stretching ratio of 124.1 to the final size of 0.10 mm. diameter.
- the improvement which comprises the temperature of the cooling bath is 35 to 50 C. and the dwell time of the monofilament in the cooling bath is less than one second.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1488370A CH511294A (de) | 1970-10-08 | 1970-10-08 | Verfahren zur Herstellung von Monofilen aus Polyamid 12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3743690A true US3743690A (en) | 1973-07-03 |
Family
ID=4404543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00180838A Expired - Lifetime US3743690A (en) | 1970-10-08 | 1971-09-15 | Process for the production of monofilaments of polyamide 12 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3743690A (enExample) |
| JP (1) | JPS4943495B1 (enExample) |
| CH (1) | CH511294A (enExample) |
| DE (1) | DE2149908B2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4970042A (en) * | 1985-12-27 | 1990-11-13 | Aderans Co., Ltd. | Synthetic fibers having uneven surfaces method for melt-spinning |
-
1970
- 1970-10-08 CH CH1488370A patent/CH511294A/de not_active IP Right Cessation
-
1971
- 1971-09-15 US US00180838A patent/US3743690A/en not_active Expired - Lifetime
- 1971-10-06 DE DE2149908A patent/DE2149908B2/de active Pending
- 1971-10-07 JP JP46079088A patent/JPS4943495B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4970042A (en) * | 1985-12-27 | 1990-11-13 | Aderans Co., Ltd. | Synthetic fibers having uneven surfaces method for melt-spinning |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2149908A1 (de) | 1972-04-13 |
| DE2149908B2 (de) | 1974-10-10 |
| CH511294A (de) | 1971-08-15 |
| JPS4943495B1 (enExample) | 1974-11-21 |
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