CN104122163A - Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles - Google Patents
Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles Download PDFInfo
- Publication number
- CN104122163A CN104122163A CN201310150991.7A CN201310150991A CN104122163A CN 104122163 A CN104122163 A CN 104122163A CN 201310150991 A CN201310150991 A CN 201310150991A CN 104122163 A CN104122163 A CN 104122163A
- Authority
- CN
- China
- Prior art keywords
- fiber
- blending product
- viloft
- polyamide fibre
- reagent
- 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.)
- Pending
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A provided quantitative determination method for fiber content of viloft fiber and polyamide blended textiles comprises the following steps: S1, putting viloft fiber and polyamide blended textiles in a baking box with a constant temperature of 102-108 DEG C to bake to dry, then rapidly taking out and putting in a dryer to cool to room temperature, and weighing the mass of the blended textiles and recording as m0; S2, putting the blended textiles into formic acid with the mass concentration of 80%-88% or hydrochloric acid with the mass concentration of 20% according to the sample (g) to reagent (mL) bath ratio of 1:100-200, continuously shaking at 10-40 DEG C for 15-30 min; and S3, washing fiber indissolvable in formic acid or hydrochloric acid reagent in the step S2 with water to neutral, putting in a baking box with a constant temperature of 102-108 DEG C to bake to dry, rapidly taking out and putting in a dryer to cool to room temperature, and weighing the residual mass of the blended textiles and recording as m1. The dissolving temperature is controlled at 10-40 DEG C, because viloft fiber at the temperature shows relatively strong acid resistance, a final detection result is highly consistent with an actual value, and the method has extremely high accuracy.
Description
Technical field
The present invention relates to a kind of quantitative test detection method of textile fiber content, relate in particular to the detection method of a kind of viloft of containing fiber and polyamide fibre blending product.
Background technology
Viloft fiber, the common translated name Wei Lefute fiber of Chinese or vilofty fiber, it is another New Regenerated Cellulosic Fibers that Acordis company of Britain produces after Tencel fiber, it is by manually extracting raw material from special through the high-quality timber of biological breeding, produce gained with solvent method, belong to pure natural, high-grade environmental protection, pollution-free, biodegradable fiber.Can be to environment in viloft fiber production process, auxiliary material, auxiliary agent that production run is used are all nontoxic, and most of auxiliary agent and semi-manufacture fiber all recyclable, be a kind of novel environmental protection fiber.Because viloft fiber source is in natural material, there are some premium properties of native cellulose fibre, in addition unique fiber surface structural form, make fabric lining there is splendid permeability and moisture absorbing and sweat releasing performance, the garment material of its weaving is soft, wear slim and graceful, warmingly, washing is arranged conveniently, is subject to very much the welcome of consumption market.
Polyamide fibre is the trade name of China's polyamide fibre (polyamide, PA), claims again nylon (nylon), refers to the class synthon that its molecular backbone is connected by amido link (CO-NH-).Polyamide fibre is the synthon of realizing the earliest in the world suitability for industrialized production, is also one of principal item of man-made fiber.
Polyamide fibre mainly comprises following three classes: (1) fatty polyamide mainly comprises polyamide fibre 6, polyamide fibre 66, polyamide fibre 610 etc.; (2) aromatic polyamide comprises that PPTA is that p-aramid fiber (China claims Fanglun l414) and poly(isophthaloyl metaphenylene diamine) are meta-aramid (China claims aramid fiber 1313) etc.; (3) polyamide of mixed type comprises poly-m-phenylene adipamide (MXD6) and poly-hexamethylene terephthalamide (polyamide 6 T) etc.
Fatty polyamide fiber generally can be divided into two classes:
One class is made up of diamine and dibasic acid polycondensation, and its general formula is:
—[HN(CH
2)
xNHCO(CH
2)
yCO]
n—。According to the carbon atom number of diamine and dibasic acid, can obtain the polyamide fibre of different cultivars, nomenclature principle is a carbon number that numeral is diamine before polyamide fibre, a rear numeral is the carbon number of dibasic acid, as polyamide fibre 66, formed by hexane diamine and hexane diacid polycondensation, polyamide fibre 610, is formed by hexane diamine and decanedioic acid polycondensation.
Another kind ofly obtain by omega-amino acid polycondensation or by lactams ring-opening polymerization, its general formula is:
—[NH(CH
2)
xCO]
n—。Polyamide numeral is below the carbon number of amino acid or lactams, the fiber that polyamide fibre 6 is made up through ring-opening polymerization of caprolactam.
The intensity of nylon fibre is high, elastic recovery rate is high, is the best fiber of wearing quality in all fibres, is particularly suitable for makeing socks, underwear, sport shirt etc., with other fiber blends, can improve the wearing quality of fabric.But single textile is in possessing certain superiority, often also there are a lot of defects, such as the textile made from polyamide fibre has smooth, the strong durable feature of feel, but the photostability of the clothes that single polyamide fibre is made is poor, yielding, it has the advantage of two or more fibers concurrently and favored by consumer blending product.So-called blending product refers to the fiber textile being formed by mixed fibre, blending, the spinning processing such as interweave by two or more fibrous materials, it can overcome the weakness of Single Fiber material self, fully the advantage of the multiple fiber of set, has improved the functional of textile greatly.
In quality inspection field, quantitative test for blending product adopts chemical dissolution method conventionally, so-called chemical dissolution method is exactly a component will selecting in certain agent dissolves blending product, then calculate the content of other component, but chemical dissolution method also has many weak points, such as, solubilising reagent and temperature of reaction all directly have influence on the accuracy of measurement result and the efficiency of surveying work, the chemical dissolution method that quality inspection unit adopts now needs 1～2.5 hour conventionally, and detection efficiency is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of simple and efficient detection viloft fiber and polyamide fibre blending product fiber content.
In order to solve the problems of the technologies described above, the present invention adopts following technical characterictic:
A quantitative detecting method for viloft fiber and polyamide fibre blending product fiber content, comprises the following steps:
S1. viloft fiber and polyamide fibre blending product are placed in to take out rapidly after the constant temperature oven of 102～108 DEG C is dried and are placed in exsiccator and are cooled to room temperature, take the quality m of blending product
0;
S2. according to blending product (g): it is the hydrochloric acid that 80%～88% formic acid or mass concentration are 20% that blending product is placed in mass concentration by the bath raio of reagent (mL)=1:100～200, concussion 15～30 minutes continuously under 10～40 DEG C of conditions;
S3. the fiber water that is insoluble to formic acid or hydrochloric acid reagent in step S2. is cleaned to neutral, the constant temperature oven that is then placed in 102～108 DEG C is dried, and taking-up is placed in exsiccator and is cooled to room temperature rapidly, takes the residual mass m of blending product
1.
The solubilising reagent that the method is selected and solution temperature can be accelerated polyamide fibre and dissolve under the condition of concussion continuously, have greatly reduced detection time, have improved detection efficiency.
As priority scheme, solution temperature is preferably 20～30 DEG C described in step S2, and described dissolution time is preferably 20 minutes, and this preferred version can accelerate by a larger margin polyamide fibre and dissolve, and has reduced to a greater degree detection time.
Further, described in step S2, the bath raio of blending product and reagent can be preferably 1:150 or 1:180, in the time that the amount of solubilising reagent is too small, dissolving fiber in blending product can not get abundant dissolving, make testing result out of true, in the time that the consumption of solubilising reagent is too much, although can make blending product fully dissolve, but can cause undoubtedly the waste of reagent, increase testing cost, in the time that the bath raio of control blending product and reagent is 1:150 or 1:180, can either make blending product fully dissolve, can save again the consumption of solubilising reagent.
The present invention is on the basis of further investigation, formic acid or hydrochloric acid are as solubilising reagent, and solution temperature is controlled between 10～40 DEG C, because viloft fiber at this temperature shows stronger acid resistance, make final testing result and actual numerical value can keep highly consistent, there is very high accuracy.In addition, solubilising reagent of the present invention and solution temperature can be accelerated polyamide fibre and dissolve under the condition of concussion continuously, have greatly reduced detection time, make only need 15 minutes the shortest detection time under this temperature conditions, have improved detection efficiency.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further details.
The experiment of embodiment 1viloft fiber correction factor
Get the viloft fiber of certain mass, be placed on 3h in the constant temperature oven of 105 DEG C, after fully drying, take out rapidly and be placed in exsiccator and be cooled to room temperature, take the weight of viloft fiber with the balance that degree of accuracy is 0.1mg, be designated as a, according to sample (g): it is the hydrochloric acid that 80%～88% formic acid or mass concentration are 20% that viloft fiber is placed in mass concentration by the bath raio of reagent (mL)=1:100, under 10～50 DEG C of conditions, shake continuously after 20 minutes, viloft fiber water is cleaned to neutral, the constant temperature oven that is placed in 105 DEG C is dried, then taking-up is placed in exsiccator and is cooled to room temperature rapidly, take weight b with the balance that degree of accuracy is 0.1mg.Relatively the size of a and b just can show that viloft fiber is by reagent solution mass loss situation after treatment, represents the modified weight modulus of viloft fiber when the use agent treated with d=a/b.
As shown in table 1, be within the scope of 10～40 DEG C in solution temperature, viloft fiber shows good acid resistance, and along with the rising of temperature, it is stable that correction factor d keeps; When temperature exceedes after 45 DEG C, the correction factor d of viloft fiber sharply increases.
Table 1 viloft fiber correction factor test figure
Embodiment 2 viloft Fibrinolysis performance tests
It is that 20% hydrochloric acid, 80% formic acid, 88% formic acid, 75% sulfuric acid are as solubilising reagent that mass concentration is selected in this test, the viloft fiber of certain mass is put into respectively to above reagent, after 20 minutes, observe the dissolving situation of viloft fiber under 10 DEG C, 20 DEG C, 30 DEG C and 40 DEG C of conditions, can find out according to table 2, viloft fiber is at 10～40 DEG C, 80%～88% formic acid solution or in 10～30 DEG C, 20% hydrochloric acid solution, viloft fiber does not all dissolve; And only to there is part in viloft fiber swelling in 40 DEG C, 20% hydrochloric acid solution.
Table 2 viloft Fibrinolysis performance test
Embodiment 3 80% formic acid solubility tests
Get viloft fiber and the polyamide fibre blending product of 2 parts of its component concentrations of the unknown, be placed on respectively in the constant temperature oven of 105 DEG C 3 hours, after fully drying, take out rapidly and be placed in exsiccator and be cooled to room temperature, the weight that takes blending product with the balance that degree of accuracy is 0.1mg, is designated as m
0according to sample (g): it is 80% formic acid that blending product is placed in mass concentration by reagent (mL)=1:100 bath raio, under 10 DEG C of conditions, shake continuously after 20 minutes, polyamide fibre is dissolved in formic acid solution completely, be that viloft fiber water cleans to neutral by insoluble fiber, the constant temperature oven that is placed in 105 DEG C is dried, and then takes out to be rapidly placed in exsiccator and to be cooled to room temperature, takes weight m with the balance that degree of accuracy is 0.1mg
1.Wherein, in blending product, the quality of viloft fiber is m
1, the quality of polyamide fibre is m
0-m
1.
Through computational reasoning, can further determine the percentage composition of viloft fiber and polyamide fibre in blending product according to computing formula (1), (2).
P
2=100-P
1…………………………………………………(2)
In formula: P
1the clean dry percent content of fiber v iloft fiber, % are not dissolved in-expression;
P
2the clean dry percent content of fiber and nylon, % are dissolved in-expression;
The modified weight modulus of d-expression viloft fiber in the time of agent treated.
The setting of correction factor d is in order to make testing result more accurate, avoids insoluble fiber in the time carrying out agent treated, to occur damage and causes final detection result to depart from actual value.As described in Example 1, in the time that solution temperature is 20 DEG C, correction factor d is 1.00, has ensured the accuracy that this enforcement is measured, as shown in table 3.
Table 3 80% formic acid solubility test data
| m 0 | m 1 | d | P 1 | P 2 |
| 1.2713 | 0.9408 | 1.00 | 74.0 | 26.0 |
| 1.1854 | 0.8950 | 1.00 | 75.5 | 24.5 |
Embodiment 4 88% formic acid solubility tests
Get viloft fiber and the polyamide fibre blending product of 2 parts of its component concentrations of the unknown, be placed on respectively 3h in the constant temperature oven of 105 DEG C, after fully drying, take out rapidly and be placed in exsiccator and be cooled to room temperature, the weight that takes blending product with the balance that degree of accuracy is 0.1mg, is designated as m
0, according to blending product (g): it is 88% formic acid that blending product is placed in mass concentration by the bath raio of formic acid solution (mL)=1:200, in mass, and reagent by volume for blending product herein.Under 20 DEG C of conditions, shake continuously after 15 minutes, polyamide fibre is dissolved in formic acid solution completely, is that viloft fiber water cleans to neutral by insoluble fiber, and the constant temperature oven that is placed in 105 DEG C is dried, then take out rapidly and be placed in exsiccator and be cooled to room temperature, take weight m with the balance that degree of accuracy is 0.1mg
1.Wherein, in blending product, the quality of viloft fiber is m
1, the quality of polyamide fibre is m
0-m
1.
Draw the percentage composition of each component fibre in blending product according to computing formula (1), (2) described in embodiment 3, in table 4.
Table 4 88% formic acid solubility test data
| m 0 | m 1 | d | P 1 | P 2 |
| 1.2109 | 0.8512 | 1.00 | 70.3 | 29.7 |
| 1.0029 | 0.7040 | 1.00 | 70.2 | 29.8 |
Embodiment 5 20% dissolving with hydrochloric acid tests
Get viloft fiber and the polyamide fibre blending product of 2 parts of its component concentrations of the unknown, be placed on respectively 3h in the constant temperature oven of 105 DEG C, after fully drying, take out rapidly and be placed in exsiccator and be cooled to room temperature, the weight that takes blending product with the balance that degree of accuracy is 0.1mg, is designated as m
0according to sample (g): it is 20% hydrochloric acid that blending product is placed in mass concentration by reagent (mL)=1:150 bath raio, under 30 DEG C of conditions, shake continuously after 30 minutes, polyamide fibre is dissolved in hydrochloric acid solution completely, be that viloft fiber water cleans to neutral by insoluble fiber, the constant temperature oven that is placed in 105 DEG C is dried, and then takes out to be rapidly placed in exsiccator and to be cooled to room temperature, takes weight m with the balance that degree of accuracy is 0.1mg
1.Wherein, in blending product, the quality of viloft fiber is m
1, the quality of polyamide fibre is m
0-m
1.
Draw the percentage composition of each component fibre in blending product according to computing formula (1), (2) described in embodiment 3, in table 5.
Table 5 20% dissolving with hydrochloric acid test figure
| m 0 | m 1 | d | P 1 | P 2 |
| 1.1123 | 0.7797 | 1.00 | 70.1 | 29.9 |
| 1.2015 | 0.8386 | 1.00 | 69.7 | 30.3 |
Embodiment 6 20% dissolving with hydrochloric acid tests
Get viloft fiber and the polyamide fibre blending product of 2 parts of its component concentrations of the unknown, be placed on respectively 3h in the constant temperature oven of 105 DEG C, after fully drying, take out rapidly and be placed in exsiccator and be cooled to room temperature, the weight that takes blending product with the balance that degree of accuracy is 0.1mg, is designated as m
0according to sample (g): it is 20% hydrochloric acid that blending product is placed in mass concentration by reagent (mL)=1:180 bath raio, under 40 DEG C of conditions, shake continuously after 15 minutes, polyamide fibre is dissolved in hydrochloric acid solution completely, be that viloft fiber water cleans to neutral by insoluble fiber, the constant temperature oven that is placed in 105 DEG C is dried, and then takes out to be rapidly placed in exsiccator and to be cooled to room temperature, takes weight m with the balance that degree of accuracy is 0.1mg
1.Wherein, in blending product, the quality of viloft fiber is m
1, the quality of polyamide fibre is m
0-m
1.
Draw the percentage composition of each component fibre in blending product according to computing formula (1), (2) described in embodiment 3, in table 6.
Table 6 20% dissolving with hydrochloric acid test figure
| m 0 | m 1 | d | P 1 | P 2 |
| 1.0143 | 0.7161 | 1.00 | 70.6 | 29.4 |
| 1.1213 | 0.7760 | 1.00 | 69.2 | 30.8 |
Claims (5)
1. a quantitative detecting method for viloft fiber and polyamide fibre blending product fiber content, is characterized in that comprising the following steps:
S1. viloft fiber and polyamide fibre blending product are placed in to take out rapidly after the constant temperature oven of 102～108 DEG C is dried and are placed in exsiccator and are cooled to room temperature, take the quality m of blending product
0;
S2. according to blending product (g): it is the hydrochloric acid that 80%～88% formic acid or mass concentration are 20% that blending product is placed in mass concentration by the bath raio of reagent (mL)=1:100～200, concussion 15～30 minutes continuously under the solution temperature of 10～40 DEG C;
S3. the fiber water that is insoluble to formic acid or hydrochloric acid reagent in step S2 is cleaned to neutral, the constant temperature oven that is then placed in 102～108 DEG C is dried, and taking-up is placed in exsiccator and is cooled to room temperature rapidly, takes the residual mass m of blending product
1.
2. viloft fiber according to claim 1 and polyamide fibre blending product fiber content quantitative detecting method, is characterized in that, solution temperature is 20～30 DEG C described in step S2.
3. viloft fiber according to claim 2 and polyamide fibre blending product fiber content quantitative detecting method, is characterized in that, the concussion time is 20 minutes described in step S2.
4. viloft fiber according to claim 1 and polyamide fibre blending product fiber content quantitative detecting method, is characterized in that, the bath raio of blending product and reagent is 1:150 described in step S2.
5. viloft fiber according to claim 1 and polyamide fibre blending product fiber content quantitative detecting method, is characterized in that, the bath raio of blending product and reagent is 1:180 described in step S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150991.7A CN104122163A (en) | 2013-04-26 | 2013-04-26 | Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150991.7A CN104122163A (en) | 2013-04-26 | 2013-04-26 | Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104122163A true CN104122163A (en) | 2014-10-29 |
Family
ID=51767663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310150991.7A Pending CN104122163A (en) | 2013-04-26 | 2013-04-26 | Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104122163A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644814A (en) * | 2016-12-27 | 2017-05-10 | 安徽雨禾精纤股份有限公司 | Method for detecting content of synthetic fiber in cotton linter |
| CN110618057A (en) * | 2019-10-29 | 2019-12-27 | 东莞市中鼎检测技术有限公司 | Method for detecting content of spandex and viscose in spandex and viscose blended fabric |
| CN111257162A (en) * | 2020-04-02 | 2020-06-09 | 青岛市纤维纺织品监督检验研究院 | Method for measuring silver content in chinlon silver-plated fiber |
-
2013
- 2013-04-26 CN CN201310150991.7A patent/CN104122163A/en active Pending
Non-Patent Citations (5)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局 等: "纺织品 定量化学分析 第1部分：试验通则", 《中华人民共和国国家标准 GB/T 2910.1-2009》 * |
| 中华人民共和国国家质量监督检验检疫总局 等: "纺织品 定量化学分析 第7部分：聚酰胺纤维与某些其他纤维混合物(甲酸法)", 《中华人民共和国国家标准 GB/T 2910.7-2009》 * |
| 关晓媛 等: "再生纤维素纤维的鉴别与检测方法研究", 《科技创新导报》 * |
| 陈林茂 等: "锦纶/氨纶混纺产品四种定量化学分析方法比较研究", 《中国纤检》 * |
| 颜晖 等: "采用20%盐酸替代甲酸对锦纶混纺产品定量分析的探讨", 《江苏纺织》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644814A (en) * | 2016-12-27 | 2017-05-10 | 安徽雨禾精纤股份有限公司 | Method for detecting content of synthetic fiber in cotton linter |
| CN110618057A (en) * | 2019-10-29 | 2019-12-27 | 东莞市中鼎检测技术有限公司 | Method for detecting content of spandex and viscose in spandex and viscose blended fabric |
| CN111257162A (en) * | 2020-04-02 | 2020-06-09 | 青岛市纤维纺织品监督检验研究院 | Method for measuring silver content in chinlon silver-plated fiber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1875134A (en) | Fiber yarn and fabric using the same | |
| CN104122162A (en) | Quantitative determination method for fiber content of viloft fiber and acrylic fiber or spandex blended textiles | |
| CN104406981B (en) | A kind of method that fast qualitative differentiates fiber | |
| CN104122163A (en) | Quantitative determination method for fiber content of viloft fiber and polyamide blended textiles | |
| WO2013115540A1 (en) | Method for manufacturing ramie fabric-reinforced natural yarn | |
| CN104122165A (en) | Quantitative determination method for fiber content of viloft fiber and natural protein fiber blended textiles | |
| CN109338503A (en) | A kind of preparation method of uvioresistant acid fiber by polylactic | |
| BR112017027267B1 (en) | POLYAMIDE FIBER WITH IMPROVED DYEING PROPERTIES, PROCESS FOR OBTAINING SUCH FIBER AND POLYAMIDE ARTICLE MADE FROM THIS | |
| CN111183249A (en) | Lyocell filament jean | |
| CN108149494A (en) | A kind of Reactive Printing Process | |
| CN105887515B (en) | A kind of printing method of 56 fibers of polyamide fibre/cotton blended spinning face fabric | |
| CN101231224A (en) | Method for quantitative analysis of bicomponent fibre textile | |
| CN104764671A (en) | New application of formic acid/zinc chloride solution and quantitative analysis method of lyocell A100 in blend fiber | |
| TR201816622T4 (en) | Micro fiber. | |
| Kan et al. | Use of softener in home laundering of cotton fabric–hand feel value measurement by PhabrOmeter | |
| CN102505445B (en) | Method for modification, moisture transfer, perspiration and finishing of aromatic polyamide fabric | |
| CN104122164A (en) | Quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles | |
| KR101334170B1 (en) | Method for quantitative analysis of protein fiber mixtures of textiles by carbonization | |
| CN109321990A (en) | A kind of preparation method of super-hydrophobic Lyocell fibers | |
| CN104914001A (en) | Application of formic acid/zinc chloride solution for quantitative analysis of Lyocell A100 in mixed fiber and analysis method thereof | |
| CN104122166A (en) | Quantitative determination method for fiber content of viloft fiber and natural cellulose fiber blended textiles | |
| CN102465355B (en) | Core-sheath composite polyester fiber | |
| CN104032602B (en) | Anti-REACTIVE DYES staining agent | |
| CN104040045B (en) | Halide salts ion is used to exchange the method removing sulfur from fiber | |
| CN106644814A (en) | Method for detecting content of synthetic fiber in cotton linter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141029 |
|
| RJ01 | Rejection of invention patent application after publication |