CN101988264B - Method for testing surface impurities of polyester fibers subjected to cheese dyeing - Google Patents
Method for testing surface impurities of polyester fibers subjected to cheese dyeing Download PDFInfo
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- CN101988264B CN101988264B CN2009100901083A CN200910090108A CN101988264B CN 101988264 B CN101988264 B CN 101988264B CN 2009100901083 A CN2009100901083 A CN 2009100901083A CN 200910090108 A CN200910090108 A CN 200910090108A CN 101988264 B CN101988264 B CN 101988264B
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Abstract
The invention discloses a method for testing surface impurities of polyester fibers subjected to cheese dyeing, comprising four steps of sampling, sample weighting, sample treating and result calculating, wherein impurities on the fiber surfaces are removed with a treating fluid, and then the content of the impurities on the fiber surfaces are calculated out according to the change of the weight of the sample. The test method in the invention can be used for quality evaluation of the polyester fibers subjected to the cheese dyeing and can also be used for predicting the influence of the surface impurities of the polyester fibers subjected to the cheese dyeing to subsequent application and processing.
Description
Technical field
What the present invention relates to is field of textiles, more particularly, the present invention relates to a kind of method of testing of cheese dyeing PET fiber surface impurity, can be used for the quality after terylene short fiber yarn, polyester thread and the polyester filament dyeing is estimated.
Background technology
The cheese dyeing technology of polyster fibre is used very wide, knits field, sewing thread field etc. at look and all is widely used, and its main technique flow process is: Polyester Yarns (or polyester thread or polyester filament) → metal → dyeing → finished product.Generally knit the field, will directly be gone up on the loom through the Polyester Yarns behind the cheese dyeing and weave,, will be become little line tower by network, be applied to then on the products such as clothes, case and bag through the polyester thread behind the cheese dyeing in the sewing thread field at look.
Cheese dyeing PET fiber surface impurity mainly is the terylene oligomer of separating out in the dyeing course, relevant terylene oligomer problem has the research report very early, some related articles are arranged, as: " treatment conditions are formed oligomer in the polyester fiber and the influence of content ", the minimizing and the removal of oligomer " polyester cheese dye ", " existence of polyester fiber oligomer, analyze and minimize " or the like
In recent years, the problem of polyester fiber product surface oligomer has been carried out big quantity research:
Periodical " printing and dyeing assistant " the 21st volume the 5th phase name is called in the article of " research of ultrasonic wave/alkali associated treatment polyester fibre surface oligomer " and discloses the method for the polyester fibre surface oligomer being carried out ultrasonic wave/alkali associated treatment, before fiber dyes, utilize ultrasonic technology sodium hydroxide solution preliminary treatment polyester fiber, temperature is 110 ℃ during preliminary treatment, total processing time is 40 minutes, 15 minutes action time of ultrasonic wave, make its surperficial oligomer quality mark of polyester fiber dyeing back obviously reduce, reason is that acoustic streaming and the shock wave that ultrasonic cavitation produces can increase the less turbulence of liquid-solid boundary and the activity of polymer segment, change the size and the shape in duct in the polymer, these interaction energies quicken oligomer and move on to the surface from fibrous inside, make the oligomer that removes by basic hydrolysis, therefore, the oligomer of fiber unformed area almost all shifts out under the ultrasonic wave effect, and then by basic hydrolysis, have only the remaining oligomer of minute quantity to move on to fiber surface in dyeing course, clean effect shows as surperficial oligomer quality mark and significantly reduces.
Periodical " dyestuff and dyeing " the 42nd volume the 4th phase name is called " research of oligomer problem in the polyester fiber dyeing and finishing processing " literary composition, the concentration and the absorbance that disclose the fiber surface oligomer are linear, elevated temperature heat typing and high-temperature pressure dyeing help oligomer and spread to the outside from fibrous inside.
" international weaving Leader " the 1st phase name in 2004 is called " existence of polyester fiber oligomer, analyze and minimize " literary composition, analyzed and in preprocessing process and dyeing course, passed through its process conditions of control, thereby made dyeing back fiber surface oligomer to reduce as much as possible.
Periodical " printing and dyeing assistant " the 23rd volume the 5th phase name is called " generation reason, the character of polyester fiber oligomer and prevent ", pass through to select suitable printing and dyeing assistant as long as analyze in this article, can partly reduce the mass fraction of oligomer at fiber surface, but often can not bathe together, increase the dyeing cost with dyeing.
Prior art shows, Recent study personnel focus on to the structure of polyster fibre the separating out of oligomer, oligomer in dyeing course and by adjusting the method that dyeing reduces oligomer, and the extracting method of the total oligomer of polyster fibre etc. is studied.In fact, cheese dyeing PET fiber surface impurity also has impurity or the like in dyestuff, dyestuff impurity, fibre debris, the water except that oligomer.These impurity stick to fiber surface, and it is unequal to cause occurring color dot, broken yarn, thickness in subsequent applications, has a strong impact on product quality.
Polyster fibre mainly comprises oligomer, dye well dyestuff impurity, fiber fines fragment, inorganic impurity etc. through cheese dyeing rear surface impurity, the ratio of impurity content and various impurity is influenced by polyester fiber raw materials, dyestuff, dyeing, dyeing water quality etc. and has than big-difference, as long as just under the external force effects such as frictional force of subsequent applications process, fall down easily no matter which kind of impurity is attached to fiber surface, be collected on equipment or the work top, equipment is caused very big pollution, cause quality problems such as broken end, color dot.
Relevant behind cheese dyeing the quality evaluation aspect of polyster fibre, test index mainly contains dyeing defect, aberration, COLOR FASTNESS, intensity or loss of strength etc. at present, is conventional method and index.Dyeing defect is to dye the too much or very few color dot that causes on the yarn tube part of being caused by a variety of causes; Aberration refers to aberration or the like between the interior China and foreign countries of yarn tube aberration, yarn tube, is the evaluation to the dyeing homogeneity; COLOR FASTNESS comprises dry grinding COLOR FASTNESS, wet-milling COLOR FASTNESS, weathering color fastness etc., be to whether can fade behind the yarn dyeing, the evaluation of performance such as variable color; Intensity refers generally to the fracture strength of yarn, and loss of strength is meant the variation of dyeing front and back yarn strength, is the evaluation to the basic physical property of yarn.Yet find in the actual application, this SOME METHODS and index be the quality of effective evaluation polyster fibre cheese dyeing comprehensively, the PET fiber surface of process cheese dyeing has oligomer and separates out, can be with other impurity, these surperficial impurity can fall down follow-up weaving etc. in the process, to loom, Sewing machiness etc. have severe contamination, bigger to the product quality influence, and polyster fibre differs greatly through cheese dyeing rear surface impurity content, what impurity content was less influences less to subsequent applications, what impurity content was more influences bigger to subsequent applications, but the method that does not still have relevant test and evaluation at present both at home and abroad, make subsequent applications producer can't accurately grasp the impurity content of the quality, particularly PET fiber surface of the polyster fibre of the cheese dyeing that will use.
In view of this, special proposition the present invention.
Summary of the invention
The object of the present invention is to provide the method for testing of the PET fiber surface impurity behind a kind of cheese dyeing.Described method of testing simple possible, resulting fiber surface impurity content data are that cheese dyeing PET fiber surface impurity content is quantized, can can form comprehensively polyster fibre quality evaluation system behind cheese dyeing in conjunction with original index such as aberration, COLOR FASTNESS, loss of strength etc.
To achieve these goals, the technical solution used in the present invention is:
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 2-10g, begin to get continuously 1-5 sample as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 1-5 sample when leftover yarn weight is 30-350g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), weigh respectively, be designated as W
0
(3) sample treatment
Sample after step (2) weighed is put into to treatment fluid and is handled, and removes sample surfaces impurity, carries out post processing then, with each sample oven dry, weighs respectively at last, and weight is designated as W
1
(4) result calculates
Data W according to step (2) and step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
In the step of the present invention (3), described treatment fluid is a kind of combination solution, wherein comprises sodium polyphosphate, triethanolamine and polyoxyethylene alkyl amine surfactants, and its total concentration is 2.5-10g/L.
In the combination solution of the present invention wherein the polyphosphoric acids sodium content be 1～4g/L, triethanolamine content is 1～3g/L, polyoxyethylene alkyl amine surfactants content is 0.5～3g/L.
Sodium polyphosphate of the present invention comprises two polyphosphate sodiums, sodium phosphate trimer or its mixture.
In the method for the present invention, in its step (3), in controllable temperature concussion equipment or ultrasonic cleaning apparatus, carry out in the described processing procedure, make treatment fluid constantly shake.
In the method for the present invention, described frequency of ultrasonic scope is 18～28kHz.
Step of the present invention (3) specifically comprises: the sample after step (2) is weighed is put into to treatment fluid, in temperature is 60-100 ℃ treatment fluid, handled 30～80 minutes, remove sample surfaces impurity, then with each sample oven dry, weigh respectively, weight is designated as W
1
Post processing of the present invention comprises: the sample that will handle with treatment fluid soaked 3～15 minutes at 30～60 ℃ with 0.5～2mL/L glacial acetic acid solution, again with room temperature water washing 1～3 time then with 60～90 ℃ hot wash 1～3 time.
Oven dry of the present invention comprises: dry at 80 ℃～105 ℃, drying time is 0.5～3 hour.
Oven dry of the present invention is meant under said temperature baking a period of time earlier, weighs, and dries by the fire under this temperature 15-30 minute then again, weighs again, when the result who weighs for this twice differs smaller or equal to 0.001g, is considered as oven dry.
The consumption of treatment fluid of the present invention is 5～50 times of example weight; The consumption of preferred described treatment fluid is 10-30 a times of example weight.
Describe the present invention below:
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing described in the present invention comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 2-10g, begin to get continuously 1-5 sample as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 1-5 sample when leftover yarn weight is 30-350g continuously as the internal layer sample;
Sampling of the present invention is carried out on thread yarn horizontal metroscope, to remove yarn tube surface yarn 2-10g earlier through the polyster fibre yarn tube behind the cheese dyeing, why to remove the yarn on part surface, be because the outer polyster fibre of dyeing back yarn tube owing to the difference of storage environment, is easy to by pollutions such as dusts.Therefore, removing the surperficial yarn of a part can make the result of test more accurate.Get 1-5 sample continuously as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes when yarn weight is 30-350g, gets 1-5 sample more continuously as the internal layer sample.The weight of each sample is about 5～100g, and the weight of preferred described sample is the 5-20 gram.
In the method for testing of the present invention, when sampling, outer sample and internal layer sample are got in selection, reason is, PET fiber surface impurity through cheese dyeing is more, when dye liquor penetrates layer, in the yarn, according to different dyeings, the direction that dye liquor penetrates layer has from inside to outside with the impurity filter in the filtration of yarn, from outside to inside, inside and outside replace etc. several, layer thickness is bigger, impurity near outer field filter collection is many, so the PET fiber surface impurity content of cheese dyeing has the characteristics of skewness, and the difference of China and foreign countries in having, usually internal layer or outer impurity content are higher, and the middle level impurity content is lower.Therefore, in method of testing of the present invention, select to get outer sample and internal layer sample, so more can reflect the impurity content of described PET fiber surface.
(2) samples weighing
The sample of step 1) gained is dried at 80 ℃～105 ℃, and drying time is 0.5～3 hour, accurately weighs record example weight W then
0, weight keeps behind the decimal point three.
Since in the sample more or less contain some moisture, these moisture can affect to the test of impurity content, therefore, first weighing before sample are dried at 80 ℃～105 ℃, drying to constant weight gets final product.
(3) sample treatment
Sample after step (2) weighed is put into to treatment fluid and is handled, and removes sample surfaces impurity, carries out post processing then, with each sample oven dry, weighs respectively at last, and weight is designated as W
1
Treatment fluid of the present invention comprises sodium polyphosphate, triethanolamine, polyoxyethylene alkyl amine surfactants solution, and preferred described sodium polyphosphate, triethanolamine, polyoxyethylene alkyl amine surfactants solution total concentration are 0.5～8g/L.Among the present invention, employing concentration is that sodium polyphosphate, triethanolamine, the polyoxyethylene alkyl amine surfactants solution of 0.5～8g/L is handled polyster fibre, can make impurity such as oligomer, the dyestuff impurity etc. of fiber surface well break away from fiber surface, can not damage fiber again.And existing the solution in the terylene oligomer problem technology, generally such as sodium hydroxide solution the polyester fiber before dying is handled with the strong base solution of high concentration, the mechanism of action of NaOH is its alkaline hydrolysis to polyester, NaOH will carry out to a certain degree corrosion to fiber surface, make oligomer that fibrous inside shifts out by basic hydrolysis, can cause the loss of polyster fibre weight when oligomer is carried out basic hydrolysis.Among the present invention, it is measurement to the fiber surface impurity content after the dyeing, in order to reach measurement effect accurately, only the Impurity removal of dyeing back PET fiber surface need be got final product, and can not cause damage to the back fiber that dyes, because can make the fiber quality loss when fiber is caused damage, will have a strong impact on the measurement result precision.
Comprise in the treatment fluid of the present invention that sodium polyphosphate (comprises two polyphosphate sodiums, sodium phosphate trimer or its mixture), triethanolamine, polyoxyethylene alkyl amine surfactants, sodium polyphosphate has stripping removal effect to the calcium soap of fiber surface, also the impurity of stripping there is certain complex-precipitation effect simultaneously, can avoid the impurity of stripping to deposit to fiber surface once more, triethanolamine and polyoxyethylene alkyl amine surfactants then help oligomer impurity and dyestuff impurity to break away from fiber surface, the impurity that will break away from fiber surface simultaneously is dispersed in the treatment fluid, and impurity is drained with treatment fluid.Polyoxyethylene alkyl amine surfactants of the present invention is inclined to one side nonionic surfactant, and its structure is
Oxyethylene group (C
2H
4O) number 10＜(m+n)＜45, and R is that carbon atom number is the straight chained alkyl of 8-16.
Carry out in controllable temperature concussion equipment or ultrasonic cleaning apparatus in the processing procedure of the present invention, the frequency of ultrasonic scope is 18～28kHz.In processing procedure, constantly shake, can increase the less turbulence of liquid-solid boundary, help impurity to come off from fiber surface, make fiber surface impurity separate, and the impurity after avoiding separating deposit to fiber surface once more with fiber surface.
Step of the present invention (3) specifically comprises: the sample after step (2) is weighed is put into to treatment fluid, in temperature is 60-100 ℃ treatment fluid, be treated to 30～80 minutes, remove sample surfaces impurity, then with each sample oven dry, weigh respectively, weight is designated as W
1When handling in treatment fluid, temperature is 60-100 ℃, and prior art is when carrying out alkali treatment to the fiber before dying, and temperature is generally 110 ℃, under high temperature and highly basic effect, easily fiber is caused damage, can not be used for fiber surface impurity quantitative test.Processing mode of the present invention can reach the purpose of removing fiber surface impurity and don't damage fiber.
Post processing of the present invention comprises: the sample that will handle with treatment fluid is with 60～100 ℃ hot wash 1～3 time, soaked 3～15 minutes at 30～60 ℃ with 0.5～2mL/L glacial acetic acid solution then, the remaining small amounts of inorganic impurity of eccysis, again with room temperature water washing 1～3 time, thoroughly eccysis fiber surface impurity.
Described oven dry comprises: dry at 80 ℃～105 ℃, drying time is 0.5～3 hour.
The consumption of treatment fluid of the present invention is 5～50 times of example weight; The consumption of preferred described treatment fluid is 10-30 a times of example weight.
(4) result calculates
According to step 2) and the data W of step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
Data that internal layer is surveyed and the outer data of surveying are averaged respectively, as internal layer impurity content and outer impurity content test result, relatively internal layer impurity content and outer impurity content test result, with peak as whole yarn tube surface impurity content measuring result.If surface impurity content is higher than 0.5%, illustrate that then this dyeing PET fiber surface impurity content is very high, so this yarn will produce in subsequent applications and have a strong impact on, need carry out Impurity removal to yarn and handle, in order to avoid result in greater loss.If the PET fiber surface impurity content that is tested out is lower than 0.2%, illustrate that then this dyeing PET fiber surface impurity content is low, this yam surface impurity is less to the subsequent applications influence.If the PET fiber surface impurity that is tested out greater than 0.2% less than 0.5% o'clock, then tackle the fiber use of having ready conditions, can remove part surface impurity by the method for winder again and exercise usefulness again, also can in subsequent applications, strengthen the personal monitoring, and the impurity powder that deposits on the timing removal equipment.
Adopt method of testing of the present invention, can reach following effect:
(1) the present invention quantizes cheese dyeing PET fiber surface impurity content, can carry out classification to product according to the fiber surface impurity content and grade, and is higher as finding the product surface impurity content, for example greater than 0.5%, then the product degradation should be handled.Widened the limitation of indexs such as aberration, COLOR FASTNESS, loss of strength in traditional cheese dyeing polyster fibre test, cheese dyeing polyster fibre quality has been estimated from new angle.
(2) adopt the measured product surface impurity content of method of testing among the present invention to can be used as the important references index of adjusting production technology, selecting auxiliary agent for use, and then improve downstream product class and quality.
(3) method of testing among employing the present invention can be checked on to used yarn by fiber surface impurity content situation, and the prediction yarn pollutes, causes broken end, knits the tendency that product surface brings color dot to look equipment, so that in time adopt remedial measures.
(4) technology of the present invention is simple, and is easy to operate, is convenient to use.
Description of drawings
Electromicroscopic photograph before Polyester Yarns is handled in treatment fluid among Fig. 1 embodiment 1;
Electromicroscopic photograph after Polyester Yarns is handled in treatment fluid among Fig. 2 embodiment 1;
Electromicroscopic photograph before Polyester Yarns is handled in treatment fluid among Fig. 3 embodiment 2;
Electromicroscopic photograph after Polyester Yarns is handled in treatment fluid among Fig. 4 embodiment 2;
Electromicroscopic photograph before Polyester Yarns is handled in treatment fluid among Fig. 5 embodiment 3;
Electromicroscopic photograph after Polyester Yarns is handled in treatment fluid among Fig. 6 embodiment 3.
The specific embodiment
To knit with 20 with look below
SPure Polyester Yarns, 42
S/ 2 polyster fibre sewing threads, look are knitted with 36
SPolyester Yarns is described in detail fiber surface impurity method of testing of the present invention and application, but the specific embodiments that the invention is not restricted to here to be given.
Embodiment 1
Look is knitted with 20
SCheese dyeing Polyester Yarns surface impurity content measuring.
Present embodiment surveys 20
SPure Polyester Yarns is produced Polyester Yarns by little chemical fibre factory, and it is navy that color is dyed by institute, is used for woven look to knit, and fiber dry friction COLOR FASTNESS is 4 grades, and loss of strength is tested its surface impurity content less than 5% before and after the dyeing.
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
To remove yarn tube surface yarn 9g through the polyster fibre yarn tube behind the cheese dyeing, begin to get continuously 3 samples as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 3 samples when leftover yarn weight is 50g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), described oven dry is carried out in baking oven, and baking is 1.5 hours when temperature is 105 ℃, weighs respectively, is designated as W
0
(3) sample treatment
Prepare treatment fluid earlier, the polyphosphoric acids sodium content is 4g/L in the described treatment fluid, and triethanolamine content is 1.5g/L, and polyoxyethylene alkyl amine surfactants content is 0.5g/L.
Wherein, the structural formula of polyoxyethylene alkyl amine surfactants as above, m is 17, n is 7, R is the normal octane base.
Above-mentioned treatment fluid evenly is divided into 6 parts, is put in 6 conical flasks, above-mentioned sample is put into to conical flask, then conical flask being put into temperature is 90 ℃ of isothermal vibration bain-maries or supersonic wave cleaning machine, and concussion or ultrasonic washing 40min take out sample, with 70 ℃ of hot washes 2 times, soak 8min with the 0.5mL/L glacial acetic acid solution, room temperature washing 2 times, dehydration, the baking oven of putting into temperature and be 105 ℃ is dried, drying time is 0.5 hour, weighs respectively then, and weight is designated as W
1, the result keeps behind the decimal point 3;
(4) result calculates
Data W according to step (2) and step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
Test result sees Table 1:
The test data of table 1 embodiment 1 and result
| Sample number into spectrum | Internal layer sample W 0(gram) | Internal layer sample W 1(gram) | Internal layer sample surfaces impurity (%) | Outer sample W 0(gram) | Outer sample W 1(gram) | Outer sample surfaces impurity (%) |
| 1 | 5.251 | 5.229 | 0.42 | 5.255 | 5.240 | 0.29 |
| 2 | 5.248 | 5.228 | 0.38 | 5.249 | 5.232 | 0.33 |
| 3 | 5.252 | 5.229 | 0.44 | 5.258 | 5.242 | 0.30 |
| Mean value | 0.41 | 0.31 |
As can be seen from the above table, this sample surfaces impurity content is 0.41%, belongs to higher category.Electromicroscopic photograph before and after described Polyester Yarns is handled in treatment fluid respectively as shown in Figure 1 and Figure 2.
Embodiment 2
42
S/ 2 cheese dyeing polyster fibre sewing thread surface impurity content measurings.
Present embodiment surveys 42
S/ 2 polyster fibre sewing thread raw materials are produced the polyster fibre sewing thread short fiber by big chemical fibre factory, and it is aterrimus that color is dyed by institute, and the dry friction COLOR FASTNESS is 4 grades, and its surface impurity content is tested.
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 10g, begin to get continuously 3 samples as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 5 samples when leftover yarn weight is 90g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), described oven dry is carried out in baking oven, and baking is 2 hours when temperature is 90 ℃, weighs respectively, is designated as W
0
(3) sample treatment
Prepare treatment fluid earlier, two polyphosphate sodium content are 1g/L in the described treatment fluid, and triethanolamine content is 3g/L, and polyoxyethylene alkyl amine surfactants content is 2g/L.
Wherein, the structural formula of polyoxyethylene alkyl amine surfactants as above, m is 22, n is 23, R is a dodecyl.
Above-mentioned treatment fluid evenly is divided into 8 parts, is put in 8 conical flasks, above-mentioned sample is put into to conical flask, then conical flask being put into temperature is 80 ℃ of isothermal vibration bain-maries or supersonic wave cleaning machine, and concussion or ultrasonic washing 50min take out sample, with 60 ℃ of hot washes 2 times, soak 10min with the 0.5mL/L glacial acetic acid solution, room temperature washing 2 times, dehydration, the baking oven of putting into temperature and be 90 ℃ is dried, drying time is 2 hours, weighs respectively then, and weight is designated as W
1, the result keeps behind the decimal point 3;
(4) result calculates
Data W according to step (2) and step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
Test result sees Table 2:
The test data of embodiment 2 and result
| Sample number into spectrum | Internal layer sample W 0(gram) | Internal layer sample W 1(gram) | Internal layer sample surfaces impurity (%) | Outer sample W 0(gram) | Outer sample W 1(gram) | Outer sample surfaces impurity (%) |
| 1 | 15.234 | 15.197 | 0.24 | 15.225 | 15.199 | 0.17 |
| 2 | 15.241 | 15.211 | 0.20 | 15.231 | 15.208 | 0.15 |
| 3 | 15.238 | 15.204 | 0.22 | 15.228 | 15.198 | 0.20 |
| 4 | 15.232 | 15.205 | 0.18 | |||
| 5 | 15.234 | 15.210 | 0.16 | |||
| Mean value | 0.22 | 0.172 |
As can be seen from the above table, this sample surfaces impurity content is 0.22%, belongs to normal category.Electromicroscopic photograph before and after described Polyester Yarns is handled in treatment fluid respectively as shown in Figure 3, Figure 4.
Embodiment 3
Look is knitted with 20
SCheese dyeing Polyester Yarns surface impurity content measuring.
Present embodiment surveys 20
SPure Polyester Yarns is produced Polyester Yarns by little chemical fibre factory, and it is navy that color is dyed by institute, is used for woven look to knit, and fiber dry friction COLOR FASTNESS is 4 grades, and loss of strength is tested its surface impurity content less than 5% before and after the dyeing.
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 8g, begin to get continuously 5 samples as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 3 samples when leftover yarn weight is 100g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), described oven dry is carried out in baking oven, and baking is 1.5 hours when temperature is 100 ℃, weighs respectively, is designated as W
0
(3) sample treatment
Prepare treatment fluid earlier, the tripolyphosphate sodium content is 1g/L in the described treatment fluid, and triethanolamine content is 1g/L, and polyoxyethylene alkyl amine surfactants content is 0.5g/L.
Wherein, the structural formula of polyoxyethylene alkyl amine surfactants as above, m is 10, n is 20, R is a n-hexadecyl.
Above-mentioned treatment fluid evenly is divided into 8 parts, is put in 8 conical flasks, above-mentioned sample is put into to conical flask, then conical flask being put into temperature is 90 ℃ of isothermal vibration bain-maries or supersonic wave cleaning machine, and concussion or ultrasonic washing 30min take out sample, with 60 ℃ of hot washes 2 times, soak 5min with the 0.8mL/L glacial acetic acid solution, room temperature washing 2 times, dehydration, the baking oven of putting into temperature and be 100 ℃ is dried, drying time is 1.5 hours, weighs respectively then, and weight is designated as W
1, the result keeps behind the decimal point 3;
(4) result calculates
Data W according to step (2) and step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
Test result sees Table 3:
The test data of table 3 embodiment 3 and result
| Sample number into spectrum | Internal layer sample W 0(gram) | Internal layer sample W 1(gram) | Internal layer sample surfaces impurity (%) | Outer sample W 0(gram) | Outer sample W 1(gram) | Outer sample surfaces impurity (%) |
| 1 | 19.786 | 19.750 | 0.18 | 19.768 | 19.723 | 0.23 |
| 2 | 19.773 | 19.731 | 0.21 | 19.770 | 19.730 | 0.20 |
| 3 | 19.781 | 19.747 | 0.17 | 19.761 | 19.712 | 0.25 |
| 4 | 19.784 | 19.746 | 0.19 | |||
| 5 | 19.778 | 19.733 | 0.23 | |||
| Mean value | 0.196 | 0.226 |
As can be seen from the above table, this sample surfaces impurity content is 0.226%, belongs to low category.Electromicroscopic photograph before and after described Polyester Yarns is handled in treatment fluid is respectively as Fig. 5, shown in Figure 6.
Embodiment 4
42
S/ 2 cheese dyeing polyster fibre sewing thread surface impurity content measurings.
Present embodiment surveys 42
S/ 2 polyster fibre sewing thread raw materials are produced the polyster fibre sewing thread short fiber by big chemical fibre factory, and it is aterrimus that color is dyed by institute, and the dry friction COLOR FASTNESS is 4 grades, and its surface impurity content is tested.
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 5g, get 1 sample as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 1 sample when leftover yarn weight is 30g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), described oven dry is carried out in baking oven, and baking is 3 hours when temperature is 80 ℃, weighs respectively, is designated as W
0
(3) sample treatment
Prepare treatment fluid earlier, the polyphosphoric acids sodium content is that 3g/L (wherein two polyphosphate sodium content are 2g/L, and the tripolyphosphate sodium content is 1g/L) triethanolamine content is 2g/L in the described treatment fluid, and polyoxyethylene alkyl amine surfactants content is 1g/L.
Wherein, the structural formula of polyoxyethylene alkyl amine surfactants as above, m is 15, n is 18, R is the n-decane base.
Above-mentioned treatment fluid evenly is divided into 2 parts, is put in 2 conical flasks, above-mentioned sample is put into to conical flask, then conical flask being put into temperature is 90 ℃ of isothermal vibration bain-maries or supersonic wave cleaning machine, and concussion or ultrasonic washing 30min take out sample, with 60 ℃ of hot washes 2 times, soak 3min with the 1.5mL/L glacial acetic acid solution, room temperature washing 2 times, dehydration, the baking oven of putting into temperature and be 80 ℃ is dried, drying time is 3 hours, weighs respectively then, and weight is designated as W
1, the result keeps behind the decimal point 3;
(4) result calculates
Data W according to step (2) and step (3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
Test result sees Table 4:
The test data of embodiment 4 and result
| Sample number into spectrum | Internal layer sample W 0(gram) | Internal layer sample W 1(gram) | Internal layer sample surfaces impurity (%) | Outer sample W 0(gram) | Outer sample W 1(gram) | Outer sample surfaces impurity (%) |
| 1 | 10.858 | 10.802 | 0.52 | 10.794 | 10.743 | 0.47 |
As can be seen from the above table, this sample surfaces impurity content is 0.52%, and the impurity content height needs adjusting process.
Embodiment 5
Look is knitted with 36
SPolyester Yarns surface impurity content measuring
Certain cheese dyeing enterprise receives the same specification look of production in enormous quantities and knits with 36
STerylene dyed yarn order needs to produce two months continuously, and factory adjusts production technology for reducing production costs under the prerequisite of ensuring the quality of products.
Producing maximum problem continuously is exactly the problem of when clearing up dye vat, because the interior impurity of cylinder can be cumulative after a dye vat even dyed several cylinders, cumulative effect is very obvious, unclear cylinder can have a strong impact on product quality, clear cylinder cost is very high again, and influence is produced, in order to control the clear cylinder time, factory uses the inventive method to test every cylinder product fiber surface impurity content, adopt method of testing of the present invention to test, when surface impurity content is higher than 0.3% clear cylinder of beginning, not only reduced clear cylinder number of times, also guaranteed product quality.Method of testing is as follows:
The method of testing of the PET fiber surface impurity behind a kind of cheese dyeing, described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 2g, begin to get continuously 5 samples as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 5 samples when leftover yarn weight is 350g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), described oven dry is carried out in baking oven, and baking is 1.5 hours when temperature is 95 ℃, weighs respectively, is designated as W
0
(3) sample treatment
Prepare treatment fluid earlier, the polyphosphoric acids sodium content is 4g/L (wherein two polyphosphate sodium content is 2g/L, and the tripolyphosphate sodium content is 2g/L) in the described treatment fluid, and triethanolamine content is 3g/L, and polyoxyethylene alkyl amine surfactants content is 3g/L.
Wherein, the structural formula of polyoxyethylene alkyl amine surfactants as above, m is 5, n is 5, R is the n-tetradecane base.
Above-mentioned treatment fluid evenly is divided into 10 parts, is put in 10 conical flasks, above-mentioned sample is put into to conical flask, then conical flask being put into temperature is 90 ℃ of hot water supersonic wave cleaning machines, and concussion or ultrasonic washing 40min take out sample, with 90 ℃ of hot washes 3 times, soak 4min with the 2mL/L glacial acetic acid solution, room temperature washing 2 times, dehydration, the baking oven of putting into temperature and be 95 ℃ is dried, drying time is 1.5 hours, weighs respectively then, and weight is designated as W
1, the result keeps behind the decimal point 3;
(4) result calculates
Data W according to step (2) and step 3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result.
Claims (9)
1. the method for testing of the PET fiber surface impurity behind the cheese dyeing is characterized in that described method comprises the steps:
(1) sampling
Polyster fibre yarn tube behind the cheese dyeing is removed yarn tube surface yarn 2-10g, begin to get continuously 1-5 sample as outer sample from skin then, outer sample removes a part of yarn after having taken a sample, and makes and gets 1-5 sample when leftover yarn weight is 30-350g continuously as the internal layer sample;
(2) samples weighing
With resulting each the sample oven dry of step (1), weigh respectively, be designated as W
0
(3) sample treatment
Sample after step (2) weighed is put into to treatment fluid and is handled, and removes sample surfaces impurity, carries out post processing then, with each sample oven dry, weighs respectively at last, and weight is designated as W
1
(4) result calculates
Data W according to step (2) and step (3) gained
0And W
1Calculate the yam surface impurity content, computing formula is as follows:
Yam surface impurity content (%)=(W
0-W
1)/W
0* 100
The yam surface impurity content that internal layer data that sample is surveyed obtain after is as calculated averaged, equally, the yam surface impurity content that data that outer sample is surveyed obtain after is as calculated averaged, above-mentioned two mean values are compared, with higher value as PET fiber surface impurity test result;
In the step (3), described treatment fluid is a kind of combination solution, wherein comprises sodium polyphosphate, triethanolamine and polyoxyethylene alkyl amine surfactants, and its total concentration is 2.5-10g/L.
2. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 1, it is characterized in that, the polyphosphoric acids sodium content is 1～4g/L in the described combination solution, and triethanolamine content is 1～3g/L, and polyoxyethylene alkyl amine surfactants content is 0.5～3g/L.
3. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 1 is characterized in that, in the step (3), carries out in controllable temperature concussion equipment or ultrasonic cleaning apparatus in the described processing procedure, makes treatment fluid constantly shake.
4. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 3 is characterized in that, described frequency of ultrasonic scope is 18～28kHz.
5. according to the method for testing of the PET fiber surface impurity behind any described cheese dyeing among the claim 1-4, it is characterized in that, described step (3) specifically comprises: the sample after step (2) is weighed is put to treatment fluid, in being 60-100 ℃ treatment fluid, temperature is treated to 30～80 minutes, remove sample surfaces impurity, with each sample oven dry, weigh respectively then, weight is designated as W
1
6. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 1, it is characterized in that, described post processing comprises: the sample that will handle with treatment fluid is with 60～90 ℃ hot wash 1～3 time, soaked 3～15 minutes at 30～60 ℃ with 0.5～2mL/L glacial acetic acid solution then, again with room temperature water washing 1～3 time.
7. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 1 is characterized in that, described oven dry comprises: dry at 80 ℃～105 ℃, drying time is 0.5～3 hour.
8. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 1 is characterized in that, the consumption of described treatment fluid is 5～50 times of example weight for its volume.
9. the method for testing of the PET fiber surface impurity behind the cheese dyeing according to claim 8 is characterized in that, the consumption of described treatment fluid is 10-30 times of example weight for its volume.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234311A (en) * | 1979-06-27 | 1980-11-18 | Bruckner Apparatebau Gmbh | Processes for removing impurities from textile materials |
| DE10253727A1 (en) * | 2002-11-19 | 2004-06-03 | Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. | Removing polyester oligomer deposits from dyeing equipment comprises hydrolyzing the oligomers with a carboxy ester hydrolase and/or peptidase |
-
2009
- 2009-07-31 CN CN2009100901083A patent/CN101988264B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234311A (en) * | 1979-06-27 | 1980-11-18 | Bruckner Apparatebau Gmbh | Processes for removing impurities from textile materials |
| DE10253727A1 (en) * | 2002-11-19 | 2004-06-03 | Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. | Removing polyester oligomer deposits from dyeing equipment comprises hydrolyzing the oligomers with a carboxy ester hydrolase and/or peptidase |
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| Title |
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| JP特开平8-113873A 1996.05.07 |
| 年牧野，等.涤纶筒子纱染色低聚物的减少和去除.《印染》.2001,第27卷(第1期),第20页. * |
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