CN101470064A - Cotton and silk fiber blended product content analysis method - Google Patents
Cotton and silk fiber blended product content analysis method Download PDFInfo
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- CN101470064A CN101470064A CNA2007100601484A CN200710060148A CN101470064A CN 101470064 A CN101470064 A CN 101470064A CN A2007100601484 A CNA2007100601484 A CN A2007100601484A CN 200710060148 A CN200710060148 A CN 200710060148A CN 101470064 A CN101470064 A CN 101470064A
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Abstract
A content analysis method for the blended product of cotton and tencel fiber, comprising: using formic acid/zinc chloride solution to dissolve and remove tencel fiber, and leaving cotton alone, wherein the formic acid/zinc chloride solution comprises 5 deals of formic acid solution of 88% concentration and one deal of zinc chloride solution, which are accounted in volume ratio, and the water bath temperature is 73 to 83 DEG C, the solution temperature is 69 to 81 DEG C, and the dissolution time is 9 to 20 min. The invention has the advantages that (1) the content analysis method for the blended product of cotton and tencel fiber can on-timely detect technical effect and make technical effect reach standard index, the content analysis method can quickly and accurately detect the actual content of tencel fiber in the blended yarns of cotton and tencel fiber, to on-timely find the difference between actual blending ratio and designed blending ratio, thereby accelerating quality information feedback speed, quickly adjusting technique and confirming the correctness of technical design, to stabilize product quality and satisfy user's demands, and via the content analysis method, users can on-timely adjust and control the content of tencel fiber to avoid economic loss; (2) compared with the method introduced by GB/T 2910-1997 industry standard, the content analysis method uses short time and has high accuracy.
Description
One, technical field
The present invention relates to a kind of fiber content analysis method of field of textiles, particularly relate to a kind of two component fibre blending products---cotton and silk fiber blended product content analysis method.
Two, background technology
The fiber content analysis method often will be used in textile enterprise and textile inspection testing agency, its analysis result accurately whether, textile enterprise is guaranteed that product quality, control cost of products are most important, then is the important means that ensures and safeguard consumer's interests for textile inspection testing agency.At present, check the method for cotton tencel blended product blending ratio content that GB/T 2910-1997 is arranged, this standard introduction is dissolved tencel fiber with certain density formic acid/liquor zinci chloridi under defined terms, and residual fiber is dried to constant dry weight, claim its weight, calculate its dry weight blending ratio.But the method is through several times test discovery, and solution differs greatly to the influence of cotton fiber, and particularly the correction factor of cotton fiber is unreasonable, has influence on the accuracy of conclusion.Because this method is not considered correlative factors such as the place of production, performance difference of raw cotton, so this method makes conclusion (of pressure testing) that certain deviation be arranged.
Three, summary of the invention
The objective of the invention is provides a kind of process of the test easier control in order to overcome the existing cotton deficiency that exists with silk fiber blended product content analysis method, and test findings is cotton and silk fiber blended product content analysis method more accurately.
Technical scheme of the present invention is achieved in that a kind of cotton and silk fiber blended product content analysis method, adopts formic acid/liquor zinci chloridi dissolving to remove a day silk, and residue is cotton.Described formic acid/liquor zinci chloridi is: 5 parts of the formic acid solutions of 88% concentration, 1 part of liquor zinci chloridi are volume ratio; 73～83 ℃ of water-bath temperature, 69～81 ℃ of solution temperatures, dissolution time 9～20 minutes.
The principle of work and the course of work:, act in the sample of a certain amount of dry weight under certain temperature, time conditions with doses, certain density formic acid/liquor zinci chloridi, a day silk is removed in dissolving, and residue is cotton, makes two kinds of fiber separation.Insoluble cotton fiber is washed, dries, cools off, weighs, calculate two components contents percent.
Usefulness of the present invention is: 1. timely inspection process design effect makes it up to standard.Adopt this test method, the actual content that can accurate detection goes out tencel fiber in the cotton tencel blended yarn, in time find actual blending ratio and the difference that designs blending ratio, accelerated quality information feedback speed, give the technology adjustment fast, guarantee the correctness of technological design, make constant product quality, satisfy customer requirement, also can in time adjust, control day silk content simultaneously is that enterprise retrieves economic losses.2. short than the method time spent of GB/T 2910-1997 industry standard introduction, the degree of accuracy height.
Four, embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1: take by weighing sample 1g, get the formic acid solution 100ml of 88% concentration, add the 20ml liquor zinci chloridi; 73 ℃ of water-bath temperature, 70 ± 1 ℃ of solution temperatures, dissolution time 20 minutes.
The dissolving gradually of day silk is analyzed remaining insoluble fiber in this process, observes through microscopically, do not find to have in the insoluble fiber day existence of silk, show the dissolving fully of day silk, the correction factor of the cotton that obtain this moment is 0.9782, and is variant with d value in the GB/T 2910-1997 standard.
According to this method, tencel blended product to different performance is tested again, except obtaining identical solute effect, find that G100 type tencel fiber dissolution velocity is faster than A100 type tencel fiber dissolution velocity, obtain cotton correction factor and be respectively 0.9753,0.9813 this moment, all with GB/T 2910-1997 standard in the d value variant.
Reach a conclusion thus, therefore the tencel fiber dissolution velocity difference of different performance cannot treat different things as the same on dissolution time, and should determine dissolution time according to fiber properties.
Embodiment 2: in order to realize test objective fast and accurately, promoted water-bath temperature to 78 ℃, 75 ± 1 ℃ of solution temperatures, dissolution time 14 minutes, obtained the conclusion consistent with the testing program of embodiment 1, the correction factor of the cotton that obtain this moment is 0.9893, and is variant with d value in the GB/T 2910-1997 standard.
Embodiment 3: having promoted the water-bath temperature once more is 83 ℃, 80 ± 1 ℃ of solution temperatures, and dissolution time 9 minutes has obtained the conclusion consistent with above testing program.The correction factor of the cotton that obtain this moment is 0.9846, and is variant with d value in the GB/T 2910-1997 standard.
This shows that dissolution time shortens tencel fiber with the rising of solution temperature in a certain amount of formic acid/liquor zinci chloridi.Therefore water-bath water temperature, solution temperature, dissolution time, three big key elements are that decision tencel fiber content is tested whether accurate key factor.
Therefore, we have taked following measure:
(1) observes formic acid/liquor zinci chloridi variation of temperature on water-bath, determine formic acid/liquor zinci chloridi temperature in test, carry out record.
(2) determine day dissolved time scheme of silk, test preferred Best Times.
(3) get the sample of different performance and blending ratio content at rove,, guarantee that conclusion (of pressure testing) is correct to obtain correction factor accurately.
We at first observe formic acid/liquor zinci chloridi of the 100 milliliters variation of temperature curve on the water-bath of uniform temperature under the normal temperature, the temperature that has drawn its formic acid/liquor zinci chloridi is increased to along with the prolongation of time and is certain value when being lower than 3 ± 1 ℃ of water-bath temperature, and this just lays a good foundation for the consistance of conclusion (of pressure testing) and accuracy.
In order to dissolve tencel fiber fast, shorten test period, we are defined as 80 ± 1 ℃ to solution temperature.The key element of temperature has been determined, is also just determined that thereupon we are defined as test period to the dissolved time of tencel fiber in the standard configuration sample, have carried out a large amount of tests thus on the time.Whenever carry out the test of a scheme, all compare, and examine under a microscope the solute effect of tencel fiber with the standard configuration sample.
Accuracy in order to ensure conclusion (of pressure testing), we have carried out simultaneous test to the cotton fiber correction factor of this moment, cotton textiles are spun cotton tencel blended rove bar with different proportion according to carried out many groups of tests with quadrat method, drawn cotton/sky silk ratio and be 50/50,60/40,70/30,100/0 correction factor d value and be respectively 0.9846,0.9878,0.9884,0.9949.This shows under the equal conditions, and with the increasing of cotton fiber content, its correction factor approaches 1 more in the blending product.
We also find in the test, owing to be that always in variation, the raw cotton of the different places of production, different countries is used alternatingly the raw cotton condition in the test of different periods, so the performance of raw cotton is also slightly different, its d value is also variant.
We reach a conclusion comprehensive above analysis: the correction factor d value of cotton fiber changes with the performance of raw cotton performance, blending product fiber content, tencel fiber and the variation of solution temperature.Therefore, when test condition and sample change, must revise again the d value.Revised blending ratio content and technological design fit like a glove.
Accurate and effective for the warranty test effect in test each time, all must the production standard proportion specimen carry out simultaneous test, determines the correction factor of blending ratio content sample of the same race with this.This point is very crucial.
We have carried out conscientious analysis and summary with above process of the test, select the essence, and have formulated operation standard, have write " cotton and silk fiber blended product content analysis method ", have included the official test to the tencel blended yarn of cotton in.Through long practice test, data are accurate, and are respond well.The use of this test method has effectively guaranteed the stable of product quality, Fabric Style and spinning cost, has reached the target of stable control day silk content.
Degree of accuracy: for the tencel blended material of uniform cotton, the degree of confidence of this method is 95%, and fiducial limit all is no more than 1%, and test findings can be accepted.
Claims (1)
1, a kind of cotton and silk fiber blended product content analysis method, adopt formic acid/liquor zinci chloridi dissolving to remove a day silk, residue is cotton, and it is characterized in that: described formic acid/liquor zinci chloridi is: 5 parts of the formic acid solutions of 88% concentration, 1 part of liquor zinci chloridi are volume ratio; 73～83 ℃ of water-bath temperature, 69～81 ℃ of solution temperatures, dissolution time 9～20 minutes.
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| CNA2007100601484A CN101470064A (en) | 2007-12-25 | 2007-12-25 | Cotton and silk fiber blended product content analysis method |
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Cited By (5)
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| CN102262033A (en) * | 2011-04-29 | 2011-11-30 | 唐晓萍 | Method for determining soybean protein composite fibers in textile |
| CN101995361B (en) * | 2009-08-11 | 2012-07-04 | 深圳市华力兴工程塑料有限公司 | Long glass fiber filling quantity measuring method in plastic modification processing process |
| CN103543082A (en) * | 2012-07-10 | 2014-01-29 | 中国林业科学研究院木材工业研究所 | Determination method for contents of plant fiber substances and plastic in wood-plastic composite materials |
| CN104122166A (en) * | 2013-04-26 | 2014-10-29 | 广东省东莞市质量监督检测中心 | Quantitative determination method for fiber content of viloft fiber and natural cellulose fiber blended textiles |
| CN104764671A (en) * | 2015-03-30 | 2015-07-08 | 河北出入境检验检疫局检验检疫技术中心 | New application of formic acid/zinc chloride solution and quantitative analysis method of lyocell A100 in blend fiber |
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2007
- 2007-12-25 CN CNA2007100601484A patent/CN101470064A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995361B (en) * | 2009-08-11 | 2012-07-04 | 深圳市华力兴工程塑料有限公司 | Long glass fiber filling quantity measuring method in plastic modification processing process |
| CN102262033A (en) * | 2011-04-29 | 2011-11-30 | 唐晓萍 | Method for determining soybean protein composite fibers in textile |
| CN103543082A (en) * | 2012-07-10 | 2014-01-29 | 中国林业科学研究院木材工业研究所 | Determination method for contents of plant fiber substances and plastic in wood-plastic composite materials |
| CN103543082B (en) * | 2012-07-10 | 2015-08-05 | 中国林业科学研究院木材工业研究所 | The assay method of vegetable fibrous material and plastic content in wood plastic composite |
| CN104122166A (en) * | 2013-04-26 | 2014-10-29 | 广东省东莞市质量监督检测中心 | Quantitative determination method for fiber content of viloft fiber and natural cellulose fiber blended textiles |
| CN104764671A (en) * | 2015-03-30 | 2015-07-08 | 河北出入境检验检疫局检验检疫技术中心 | New application of formic acid/zinc chloride solution and quantitative analysis method of lyocell A100 in blend fiber |
| CN104764671B (en) * | 2015-03-30 | 2018-08-28 | 河北出入境检验检疫局检验检疫技术中心 | The quantitative analysis method of lyocell A100 in the new application and composite fibre of formic acid/liquor zinci chloridi |
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