SU387251A1 - METHOD FOR ESTIMATING THE STABILITY OF IZVIVOST TEXTURED SYNTHETIC THREADS - Google Patents
METHOD FOR ESTIMATING THE STABILITY OF IZVIVOST TEXTURED SYNTHETIC THREADSInfo
- Publication number
- SU387251A1 SU387251A1 SU1687747A SU1687747A SU387251A1 SU 387251 A1 SU387251 A1 SU 387251A1 SU 1687747 A SU1687747 A SU 1687747A SU 1687747 A SU1687747 A SU 1687747A SU 387251 A1 SU387251 A1 SU 387251A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stability
- estimating
- izvivost
- synthetic threads
- textured synthetic
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
1one
Известен способ оценки устойчивости извитости текстурированных синтетических нитей путем воздействи на испытуемый образец 1НТИ различных по величине раст гивающих нагрузок и определени критической нагрузки , по величине которой и суд т об устойчивости извитости.A known method for estimating the stability of the crimpiness of textured synthetic yarns by acting on a test sample with an NTI of varying tensile loads and determining the critical load, the magnitude of which determines the stability of tortuosity.
Однако такой способ недостаточно чуствителен , так как испытани провод т при комнатной телшературе, в результате чего значени критических нагрузок дл большинства видов нитей превышает их прочность на разрыв . Следовательно суодествующи - сиособ оценки не отражает действительных свойств нитей.However, this method is not sensitive enough, since the tests are carried out at room telegraph, as a result of which the values of critical loads for most types of filaments exceed their tensile strength. Therefore, those who do it — the evaluation method does not reflect the actual properties of the threads.
Цель изобретени - повышение точности оценки устойчивости извитости.The purpose of the invention is to improve the accuracy of tortuosity stability assessment.
Дл этого раст жение образца нити провод т при температуре на 30 - 80°С ниже точки плавлени полимера, из которого получена нить, а критическую нагрузку определ ют в момент полного исчезновени извитости.For this purpose, the sample is stretched at a temperature of 30 to 80 ° C below the melting point of the polymer from which the thread is obtained, and the critical load is determined at the moment of complete disappearance of the crimp.
Врем дейстаи нагрузки и темнература выбираютс носто нными дл данного вида нитей и определ ютс в предварительных опытах .The operating time of the load and the temperature are chosen to be unsuitable for this type of thread and are determined in preliminary experiments.
Пример. Образцы текстурированной капроновой нити толш,иной 333 текс, полученной по обычному технологическому циклу, выдерживают 3 мин при 120°С под различными по величине нагрузками. В результате испытани установлено, что извитость полностью исчезла при нагрузке, равной 2% от прочности.Example. Samples of a textured nylon thread are different, 333 tex, obtained by the usual technological cycle, kept for 3 minutes at 120 ° C under various loads. As a result of the test, it was found that the crimp disappeared completely with a load equal to 2% of the strength.
Предмет изобретени Subject invention
Способ оценки устойчивости извитости текстурированных синтетических нитей путемA method for evaluating the stability of the tortuosity of textured synthetic yarns by
воздействи па испытуемый образец нити различных но величине раст гивающих нагрузок и определени критической нагрузки, но величине которой суд т об устойчивости извитости, отличающийс тем, что, с целью повышеии the effect of the test specimen yarn is different but the magnitude of the tensile load and the determination of the critical load, but the value of which is judged on the stability of the tortuosity, characterized in that, in order to increase
точности оценки, раст жение образца провод т при температуре на 30 - 80°С ниже точки плавлени полимера, из которого получена нить, а критическую нагрузку определ ют в момент полного исчезновени извитости.the accuracy of the estimate, the stretching of the specimen is carried out at a temperature of 30 to 80 ° C below the melting point of the polymer from which the filament is obtained, and the critical load is determined at the moment of complete crimping.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1687747A SU387251A1 (en) | 1971-07-26 | 1971-07-26 | METHOD FOR ESTIMATING THE STABILITY OF IZVIVOST TEXTURED SYNTHETIC THREADS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1687747A SU387251A1 (en) | 1971-07-26 | 1971-07-26 | METHOD FOR ESTIMATING THE STABILITY OF IZVIVOST TEXTURED SYNTHETIC THREADS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU387251A1 true SU387251A1 (en) | 1973-06-21 |
Family
ID=20484952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1687747A SU387251A1 (en) | 1971-07-26 | 1971-07-26 | METHOD FOR ESTIMATING THE STABILITY OF IZVIVOST TEXTURED SYNTHETIC THREADS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU387251A1 (en) |
-
1971
- 1971-07-26 SU SU1687747A patent/SU387251A1/en active
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