CN101206214A - Novel method for judging dyeing performance of polyester filament yarn - Google Patents
Novel method for judging dyeing performance of polyester filament yarn Download PDFInfo
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- CN101206214A CN101206214A CNA2007101913498A CN200710191349A CN101206214A CN 101206214 A CN101206214 A CN 101206214A CN A2007101913498 A CNA2007101913498 A CN A2007101913498A CN 200710191349 A CN200710191349 A CN 200710191349A CN 101206214 A CN101206214 A CN 101206214A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004043 dyeing Methods 0.000 title claims abstract description 33
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- 238000012360 testing method Methods 0.000 claims abstract description 26
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Abstract
The invention provides a novel method for judging the dyeing performance of polyester filaments, which is different from a hosiery dyeing judgment method and a TYT instrument method. The method is a set of scientific method for evaluating the dyeing performance through the internal quality of the yarn strands by testing the structural performance of the polyester yarn, such as orientation degree, crystallinity degree, strong stretching fineness, yarn evenness, oil content, thermal stress and the like, and researching the relationship between various performance indexes of the polyester yarn and the dyeing performance by adopting a mathematical statistics method in comparison with the dyeing performance of a conventional hosiery dyeing judgment method. By adopting the method to evaluate the dyeing performance of the polyester filament yarn, the phenomenon of misjudgment and missed judgment caused by human or environmental factors can be eliminated, and the detection efficiency can be greatly improved.
Description
Technical field
The present invention relates to a kind of method of new judgement dyeing property of polyester filament yarn, exactly is a kind ofly to be different from traditional usefulness and to knit socks and dye and differentiate the new method of polyester filament (mainly referring to FDY, DTY) dyeability, belongs to chemical fibre detection technique field.
Background technology
Dyeing uniformity is an important indicator of polyester filament physicochemical property, and it is very big to the influence of quality of textile products.Every bobbin of polyester filament generally has tens myriametres, they can not have once more mixed chance as staple fibre in the state worker of back, if there therefore have indivedual bobbins to occur in the process of looming weaving to be unusual, tangible aberration, float etc. will appear on fabric.The purpose of dyeing uniformity test is by judging between each spinning cake and the dyeing difference of spinning cake inside, thereby distinguish normal spinning cake and the spinning cake that has quality problems exactly, and with problematic spinning cake degradation or keep apart, to avoid sneaking into the dyeing accident that produces.Want to prevent in the checkout procedure that the spinning cake erroneous judgement with defective in quality from being normal spinning cake, cause mass loss, also will prevent that with normal spinning cake erroneous judgement be defective spinning cake simultaneously, cause economic loss for manufacturing enterprise self to the user.
The general flow of present domestic dyeing uniformity check is: spinning cake → knit socks → dye pre-treatment (wash suspenders, join dyestuff etc.) → dyeing → rinsing → dry → declare look.The artificial fully by rule of thumb range estimation of this method is judged: we know that everyone eyesight all exists difference, and it also is subject to the influence of light, environment, mood, thereby cause result of determination to change, and this method process complexity, the labour cost height.
Also having a kind of method is to adopt low stretch yarn tester (TYT instrument) by testing DTY under best heating condition, and the difference in shrinkage under certain force of strain is judged its inherent quality, thereby judges its dyeability indirectly.But this method fails to judge and seriously never adopted by domestic enterprise, and this method only is applicable to the DTY kind because of low with the conventional method accordance.
Summary of the invention
The object of the present invention is to provide a kind of decision method that is different from the new dyeing property of polyester filament yarn of above-mentioned two kinds of methods.
The present invention intends adopting following scheme to realize:
1, polyester filament is carried out the test of structural behaviour, comprising: the degree of orientation (considering) of testing strand with sound velocimeter or polarization microscope with birefraction; Crystallinity with X-ray diffractometer test strand; Stretch the fiber number and the coefficient of variation thereof by force with what conventional method was surveyed strand; The dried evening ratio of bar (U value and CV value) with the dried instrument test of Wu Site bar strand; Oil content with nmr spectrometer test strand; Hot internal stress with hot extension meter (FAK) test strand; Knitting socks with routine dyes and declares method test strand dyeability (adopt colour photometer when declaring look and estimate two kinds of methods and combine).
2, adopt mathematical statistic method that above-mentioned data are analyzed, study the relation of various performance index of polyester filament and dyeability, set up the method that the strand inherent quality is estimated dyeability of passing through of a cover system.
Adopt this method to estimate the dyeability of polyester filament, not only can eliminate phenomenon, and detection efficiency also can improve greatly, thereby reduce the human cost that matches with it because misjudgement artificial or that environmental factor causes is failed to judge.Because test apparatus can adopt existing quality testing to chemically examine existing equipment, does not have much increases in fund input, only need to implement the method to the present personnel training of being correlated with.
Description of drawings
Accompanying drawing 1 is a technology path synoptic diagram of the present invention
Embodiment
Sampling according to the practical condition of enterprise, is tested all kinds as much as possible earlier, makes the result of test more convincing.Be numbered test according to the sample of being got then, in structured testing, test the degree of orientation (considering) of strand with birefraction with sound velocimeter or polarization microscope; Crystallinity with X-ray diffractometer test strand; Stretch the fiber number and the coefficient of variation thereof by force with what conventional method was surveyed strand; The dried evening ratio of bar (U value and CV value) with the dried instrument test of Wu Site bar strand; Oil content with nmr spectrometer test strand; Hot internal stress with hot extension meter (FAK) test strand;
When carrying out the said structure performance test, carry out the conventional socks of knitting and dye and declare test, with the dyeability examination of abundant understanding sample, test method adopts the method A among the GB6508-1993 " polyester filament dye uniformity test method ".
Knitting socks dyeing judgement follows these steps to carry out:
At first carry out kiering, the kiering condition is: neutral soap powder (soap flakes) 4% (to fabric quality); Bath raio 1: 70 (to fabric quality); 60 ℃ of temperature; Time 20min.The kiering program is: kiering is directly carried out in overflow dyeing machine; Take by weighing neutral soap powder (soap flakes) (being accurate to 1%) in accordance with regulations according to the suspenders quality, be dissolved into soap lye with 60 ℃ low amounts of water; According to the kiering equipment requirements, determine bath raio, in kiering equipment, pour water, soap lye into, be made into kiering and bathe.Put into suspenders after fully stirring, be warming up to 60 ℃ after, insulation 20min; The discharging waste liquid takes out suspenders, dewaters after the no soap lye with about 70 ℃ be washed to and waits to dye.
Second step was dyeing, and dyeing condition is: the dyestuff Disperse Blue 2BLN is determined addition at 1%～1.5% scope (to fabric quality) according to the suction look performance of product; Bath raio 1: 70; Dyeing temperature boils for 100 ℃ and dyes; Buffering agent acetate-sodium acetate solution (about PH=5), every liter of dye bath adds 1mL; Temperature retention time 60min.Relevant dyeing procedure is:
1) take by weighing corresponding dyestuff by the suspenders quality, be ground into pasty state with the ultrasound wave dissolving or with a small amount of soft water in glass mortar, (attention can not have tiny dye granule to exist) washes fully dissolving in the beaker that an amount of nearly boiling water is arranged in the 1000mL then.
2) by 1: 70 bath raio, in overflow dyeing machine, add corresponding water, and begin to heat up.When temperature rises to 60 ℃, add the dye solution of preparation.After stirring, be adjusted to pH value with acetate one sodium acetate buffer solution and be acid, put into suspenders, and the suspenders arrangement is convinced.With about 20min the dye bath temperature being risen to 100 ℃, and keep the temperature retention time of regulation.
3) discharging waste liquid, suspenders is taken out in cooling back, washes airing or about 45 ℃ oven dry in the cool after the dehydration.
Be the evaluation of dye uniformity at last
At first lighting condition is pressed FZ/T 01047-1997 the 5th chapter, adopts the D65 standard sources, and illumination is 600～10001x, and light is from the sample top.Different polyester filaments is carried out the judgement of suspenders dye uniformity by two kinds of methods of subordinate:
1) observation and the evaluation of drafting silk (FDY or DT silk) suspenders
Suspenders is enclosed within declares look and declare on the colour table with frame or black, fabric face and incident light are at 45, direction of observation is approximately perpendicular to fabric face, observed range 30～40cm, when observation is not known, fabric face can be become 70 ° with incident light, become 30 °, piecemeal observation with observer's sight, with aberration between the darkest section and the most shallow section and gray scale contrast in the suspenders, determine the dye uniformity grade of this product.As presenting depth striped (or spot) in the same section suspenders, also belong to uneven dyeing, should comprise its depth degree during evaluation.
2) observation of low stretch yarn suspenders and evaluation
Suspenders is enclosed within milky is translucent to be declared on the colour table, with reference to 1) the relevant regulations dye uniformity grade of observing this batch of evaluation product.In case of necessity, last act allows light see through to declare colour table, the observer declare colour table below, sight is vertical with fabric face, the observation crinkle type yarn.Crinkle type yarn is judged grade by relevant requirements, and carries out record.
Declare the look interpretation of result by data analysis and stocking leg dyeing, the inherent quality of research polyester filament and the relation between the dyeing uniformity are set up a method that inherent quality is judged the product dyeing uniformity of passing through of overlapping in correspondence with each other.
In the process of factory's practice, constantly sum up and revise.Meet new lot number or new varieties, adopt this method to proofread and correct the new varieties product again, obtain new related data.
Claims (3)
1. one kind is different from and knits the decision method that socks dye the new dyeing property of polyester filament yarn of the method for declaring and TYT instrument method, it is characterized in that: it be by polyester filament is comprised the degree of orientation, crystallinity, by force stretch fiber number, bar evenness, oil content, thermal stress isostructuralism can test, more solito is knitted the dyeability that socks dye the method for declaring, adopt the relation of the mathematical statistic method various performance index of research polyester filament and dyeability, thus a method that the strand inherent quality is estimated dyeability of passing through of overlapping science of foundation.
2. the decision method of a kind of dyeing property of polyester filament yarn according to claim 1 is characterized in that, the flow process of dyeing uniformity check is: spinning cake → knit socks → dye pre-treatment (wash suspenders, join dyestuff etc.) → dyeing → rinsing → dry → declare look.
3. the decision method of a kind of dyeing property of polyester filament yarn according to claim 1 is characterized in that: the degree of orientation (considering with birefraction) of testing strand with sound velocimeter or polarization microscope; Crystallinity with X-ray diffractometer test strand; Stretch the fiber number and the coefficient of variation thereof by force with what conventional method was surveyed strand; The dried evening ratio of bar (U value and CV value) with the dried instrument test of Wu Site bar strand; Oil content with nmr spectrometer test strand; Hot internal stress with hot extension meter (FAK) test strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101913498A CN101206214A (en) | 2007-12-18 | 2007-12-18 | Novel method for judging dyeing performance of polyester filament yarn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101913498A CN101206214A (en) | 2007-12-18 | 2007-12-18 | Novel method for judging dyeing performance of polyester filament yarn |
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| CN101206214A true CN101206214A (en) | 2008-06-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782482B (en) * | 2010-02-09 | 2011-11-16 | 浙江锦事达化纤有限公司 | Method for determining dying performance of silk threads |
| CN102608038A (en) * | 2011-12-09 | 2012-07-25 | 桐昆集团股份有限公司 | Flatly-drawn composite combined filament yarn three-step color judging method |
| CN103018176A (en) * | 2012-12-03 | 2013-04-03 | 保定天鹅股份有限公司 | Detecting method for ensuring dyeing uniformity of viscose filament yarn |
| CN105021799A (en) * | 2015-07-20 | 2015-11-04 | 中国纺织科学研究院 | PA6 filament dyeing performance detection method |
| CN110398462A (en) * | 2018-04-24 | 2019-11-01 | 恒天纤维集团有限公司 | A method of determining Lyocell staple fiber level dyeing |
-
2007
- 2007-12-18 CN CNA2007101913498A patent/CN101206214A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782482B (en) * | 2010-02-09 | 2011-11-16 | 浙江锦事达化纤有限公司 | Method for determining dying performance of silk threads |
| CN102608038A (en) * | 2011-12-09 | 2012-07-25 | 桐昆集团股份有限公司 | Flatly-drawn composite combined filament yarn three-step color judging method |
| CN103018176A (en) * | 2012-12-03 | 2013-04-03 | 保定天鹅股份有限公司 | Detecting method for ensuring dyeing uniformity of viscose filament yarn |
| CN103018176B (en) * | 2012-12-03 | 2014-12-10 | 保定天鹅股份有限公司 | Detecting method for ensuring dyeing uniformity of viscose filament yarn |
| CN105021799A (en) * | 2015-07-20 | 2015-11-04 | 中国纺织科学研究院 | PA6 filament dyeing performance detection method |
| CN110398462A (en) * | 2018-04-24 | 2019-11-01 | 恒天纤维集团有限公司 | A method of determining Lyocell staple fiber level dyeing |
| CN110398462B (en) * | 2018-04-24 | 2023-11-14 | 恒天纤维集团有限公司 | Method for judging dyeing uniformity of Lyocell short fibers |
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Open date: 20080625 |