CN102720065A - Textile frost resistance test standard sample and preparation method thereof - Google Patents
Textile frost resistance test standard sample and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a textile frost resistance test standard sample. The textile frost resistance test standard sample is characterized in that the textile frost resistance test standard sample is produced by utilizing hard finishing agents with different concentrations to carry out hard finishing for terylene which is taken as standard sample fabric, wherein the hard finishing agent is obtained by adding 7 parts of polyvinyl acetate into 1 part of epoxy resin finishing agent, by mass, stirring and mixing uniformly, wherein epoxy resin finishing agent is prepared from 1 part of AB-EP-20 and 0.6 part of AB-HGA, by mass; the hard finishing conditions are that the fabric is subjected to twice dipping and twice padding, mangle expression is 100%, soaking time is 1 minute, predrying is carried out at a temperature of 95 DEG C for 2 minutes, and baking is carried out at a temperature of 180 DEG C for 3 minutes; concentrations of the hard finishing agent which assists in carrying out hard finishing are 10g/l, 20g/l, 50g/L, 80g/L and 200g/L respectively. The textile frost resistance test standard sample is with permanent hardness and can be tried out as a standard sample which is used with a hand feel change degree test method at a low temperature environment.
Description
Technical field
The invention belongs to textiles low temperature detection technique field, be specifically related to a kind of textiles frost resistance testing standard sample and preparation method thereof.
Background technology
Textiles is endured cold under the utmost point cryogenic conditions hardening in various degree can be taken place, and in order to detect the frost resistance of textiles under the low temperature environment, needs textiles under the analogy low temperature environment.The standard sample model that does not have textiles under the low temperature environment on the existing stage.
For the evaluation of textile hard deflection, mainly contain subjective and objective two kinds of ways in the prior art.Subjective method sensory evaluation method just is the stiffness of feeling to evaluate fabric with the people, judges according to feel.Its estimation steps is: the at first selected experienced reviewer of some, and be divided into some groups; Secondly respectively sample being carried out sense organ by these reviewers identifies; Then, mark, sort according to individual's subjective determination or draw and judge to describe; At last, the result is carried out statistical analysis, and draw statistical conclusions.But there is certain shortcoming in this method, the one, can't get rid of subjective arbitrariness, and the 2nd, lack quantitative description.In order to overcome the defective that the subjective assessment method exists, the objective evaluation method is arisen at the historic moment.Objective method mainly is the physical and mechanical property that adopts the instrument test fabric; Objective judge method is as the basic foundation of estimating stiffness with the physical and mechanical properties of fabric; With the stiffness indices quantification of fabric, objective evaluation has overcome the defective that subjective evaluation method exists.
As far back as the thirties in 20th century, Pierre Si (Pcirce) utilizes the cantilever beam test to derive famous fabric bending length and bending stiffness formula, is used for evaluating the hard and soft property of fabric.The 1950's; Loose tail, the river end of Japan have been developed respectively from many indexs of multiple computer desk type style appearance of mechanical properties such as stretching, shearing, bending, compression, friction; Set up the hand feel evaluation and the standardization committee (HESC) of fabric, specialized in the subjective assessment and the method for objectively evaluating of Fabric Style.The most successful is to have set up KES-F Fabric Style measuring system.KES method---KES-FB system develops by river end filial piety is male.It is the Fabric Style appearance that many individual event mechanics performance determining appearance are formed, and comprises stretching, shearing test apparatus FB1, bend test appearance FB2, and compressing tester FB3, surperficial test instrument FB4 and a microcomputer constitute.Its data read, graphics process, data are resolved with style value calculating etc. and all can on microcomputer, be realized simply.Five kinds of basic mechanical performances such as the stretching of this system testing fabric, bending, compression, shearing, surface property and weight performance are totally 16 mechanical index.The certainty of measurement of this instrument is high, and test index is many, test process and data processing complex, and cost an arm and a leg.Early 1980s, on the basis of KES-F system, the domestic separate unit YG 821 Fabric Style measuring instruments of surveying many indexs of having developed more.Simultaneously, simple and easy style appearance of ring method and nozzle-type intelligence style appearance is also studied.Early 1990s; The academy of sciences of Australian Union (CSIRO) has succeeded in developing easy fabric quality and has guaranteed the FAST of system (Fabric Assurance by Simple Testing); Be used for the quality in kind control of fabric; Be called for short FAST Fabric Style appearance, belong to many indexs of multiple computer desk type style appearance.At present, the correlation technique and the standard that all do not have the test of textile fabric or clothes frost resistance both at home and abroad.Given this, developmental research go out textiles anti-freezing property under the cover low temperature environment particularly the method for testing that changes of feel be very necessary.And the method foundation that detects need provide the object of reference of textiles anti-freezing property under the low temperature environment.
Some need the clothes (as stepping on clothes) when low temperature, wear, and its some performances when low temperature can have differently with normal temperature, change like feel, and are too obvious as if the lining firmness change, can let the wearer dislike.There is enterprise to carry out feel variation test under the low temperature, but all do not have the dependence test method at present both at home and abroad, the standard sample that does not also have feel to change its clothes.The present invention is based on this.
Summary of the invention
The object of the invention is to provide a kind of textiles frost resistance testing standard sample, solved to lack the method for measuring textiles frost resistance under low temperature environment and textiles frost resistance testing standard sample in the prior art and cause under the low temperature environment problems such as the textiles frost resistance can't detect.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of textiles frost resistance testing standard sample; It is characterized in that said textiles frost resistance testing standard sample is through being the standard sample lining with the terylene; Adopting the cloth hard finishing agent of variable concentrations to carry out hard finishing to terylene obtains; Use therein cloth hard finishing agent is after to be AB-EP-20 and AB-HGA by the mass ratio of l:0.6 be made into the epoxy resin finishing agent, and be the polyvinyl acetate of 7:1 by mass ratio: the epoxy resin finishing agent adds the polyvinyl acetate mixing and stirring and obtains cloth hard finishing agent; The condition of said hard finishing is: fabric two soaks two and rolls, and pick-up rate is 100%, and dip time is 1min, and 95 ℃ of preliminary drying 2min bake 180 ℃, 3min; The hard finishing agent concentration that carries out hard finishing is respectively 10g/L, 20g/L, 50g/L, 80g/L, 200g/L.
Another object of the present invention is to provide a kind of preparation method of described textiles frost resistance testing standard sample; It is characterized in that it is the standard sample lining that said method comprises with the terylene; Adopt the cloth hard finishing agent of variable concentrations to carry out the step that hard finishing obtains textiles frost resistance testing standard sample to terylene; Use therein cloth hard finishing agent is after to be AB-EP-20 and AB-HGA by the mass ratio of l:0.6 be made into the epoxy resin finishing agent, and be the polyvinyl acetate of 7:1 by mass ratio: the epoxy resin finishing agent adds the polyvinyl acetate mixing and stirring and obtains cloth hard finishing agent; The condition of said hard finishing is: fabric two soaks two and rolls, and pick-up rate is 100%, and dip time is 1min, and 95 ℃ of preliminary drying 2min bake 180 ℃, 3min; The hard finishing agent concentration that carries out hard finishing is respectively 10g/L, 20g/L, 50g/L, 80g/L, 200g/L.
Operation principle of the present invention is to simulate the freeze proof grade of textiles with the different brackets of the stiffening degree of fabric, and hard finishing realizes the different fabric of hardness according to fabric.The present invention obtains a kind of textiles frost resistance testing standard sample and preparation method thereof, the reference when going for textiles frost resistance being tested at low temperatures.
Accepted standard sample lining of the present invention is a terylene; Modulate corresponding cloth hard finishing agent; The finishing agent modulator approach is: earlier AB-EP-20 and AB-HGA are made into the epoxy resin finishing agent by the mass ratio of l:0.6; Then by polyvinyl acetate: m epoxy resin mass ratio is that 7:1 mixes, and stirs, and promptly gets cloth hard finishing agent.Optimization through a series of hard finishing technologies comprises preliminary drying temperature, preliminary drying time, baking temperature, bakes time, finishing agent concentration etc., obtains the optimum process condition of hard finishing; As follows: fabric two soaks two and rolls; Pick-up rate 100%, dip time 1min, 95 ℃ of preliminary drying 2min; Bake 180 ℃, 3min.Under this technology, change the hard finishing agent concentration, be respectively 10g/L, 20g/L, 50g/L, 80g/L, 200g/L, to obtain the fabric of different hardness.
Feel intensity of variation method of testing can be carried out according to following steps under the concrete low temperature environment:
(1) refrigerator temperature being set is-20 ° of C, and the pretreated sample of damping is placed in the refrigerator drawer.Sample is placed 2h in the refrigerator of-20 ° of C, the time can handle according to the requirement of concrete fabric sample.Sample is placed in the different drawers as far as possible, opens the time of drawer with minimizing.After sample is put well, open a drawer rapidly.
(2) open refrigerator doors, pull out drawer.Do not take out sample, rapidly hand is stretched into drawer, touch sample.The another hand touches former state, and relatively the feel of two samples changes.Drawer can not be pulled out too much, and hand can put in drawer touch sample and get final product.
(3) according to sample feel intensity of variation, with the state description in the feel variation grades grade form, the feel variation grades of evaluation sample is not commented intermediate grade.The rating of the feel variation grades grade form of sample can adopt textiles frost resistance testing standard sample to confirm in advance.
Common sample feel variation grades grade form is as shown in table 1:
The state description of table 1 sample feel variation grades
With respect to scheme of the prior art, advantage of the present invention is:
The present invention is through simulating the freeze proof grade of textiles with the different brackets of the stiffening degree of terylene, and the fabric that hardness is different is realized according to the variable concentrations of fabric hard finishing.The textiles frost resistance testing standard sample hardness that obtains is stable, and the standard sample when can be used as feel intensity of variation method of testing under the low temperature environment is on probation.This assay method is simple in checked operation, feasible, practical, efficient, and checked operation is easy, and round of visits is short, and operability is high.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Sample warp-wise bending property result when Fig. 1 is 10g/L for the hard finishing agent concentration;
Sample broadwise bending property result when Fig. 2 is 10g/L for the hard finishing agent concentration;
Sample warp-wise bending property result when Fig. 3 is 20g/L for the hard finishing agent concentration;
Sample broadwise bending property result when Fig. 4 is 20g/L for the hard finishing agent concentration;
Sample warp-wise bending property result when Fig. 5 is 50g/L for the hard finishing agent concentration;
Sample broadwise bending property result when Fig. 6 is 50g/L for the hard finishing agent concentration;
Sample warp-wise bending property result when Fig. 7 is 80g/L for the hard finishing agent concentration;
Sample broadwise bending property result when Fig. 8 is 80g/L for the hard finishing agent concentration;
Sample warp-wise bending property result when Fig. 9 is 200g/L for the hard finishing agent concentration;
Sample broadwise bending property result when Figure 10 is 200g/L for the hard finishing agent concentration.
The specific embodiment
Below in conjunction with specific embodiment such scheme is further specified.Should be understood that these embodiment are used to the present invention is described and are not limited to limit scope of the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment 1 textiles frost resistance testing standard sample and preparation thereof
1, experiment material
Fabric: terylene, the longitude and latitude fineness 75*100 dawn, through the white canvas of filling density 18.5/32 terylene, Wujiang three printing and dyeing Co., Ltds
Chemicals: Methacrylamide, chemical pure, Shanghai Ling Feng chemicals Co., Ltd; Aqueous epoxy resin emulsion AB-EP-20, aqueous epoxy curing agent AB-HGA, Zhejiang Anbang New Material Development Co., Ltd.; Polyvinyl acetate M-430, Hangzhou Meigao Huayi Chemical Industry Co., Ltd; Formic acid, ammoniacal liquor, potassium peroxydisulfate, commercially available.
2, experimental technique: terylene artificial silk hard finishing method
Earlier AB-EP-20 and AB-HGA are made into the epoxy resin finishing agent by the mass ratio of l:0.6, then by polyvinyl acetate: epoxy resin finishing agent mass ratio is the 7:1 mixing, stirs, and promptly gets cloth hard finishing agent.
Method for sorting: it is subsequent use that real silk, dacron are cut into the 30*30cm size.Cloth hard finishing agent is mixed with solution in different concentration; Fabric two is soaked two and rolls in this dressing liquid; Dip time is 1min; Pick-up rate is 100%, research preliminary drying temperature, preliminary drying time, baking temperature, bakes the influence to stiffness of time, finishing agent consumption, best hard finishing technology and selects qualified sample thereby optimize.
3, method of testing and instrument
(1) boardness
The sign of bending stiffness, bending stiffness are big more, and stiffness is big more, and fabric feeling is hard more.
Instrument: it is preferred to adopt homemade stiffness test instrument index when optimizing hard finishing technology, and the sample of selecting at last adopts three kinds of instruments of domestic and imported to come the compare test result.Concrete instrument information is following:
1) the automatic fabric stiffness test appearance of YG (B) 022D type, Wenzhou Darong Textile Instrument Co., Ltd.; This instrument can be used for the stiffness of all kinds of woven fabrics such as cotton, hair, silk, fiber crops, chemical fibre, knitted fabric and textiless such as general supatex fabric, coated fabric to be measured, and the stiffness that also is suitable for flexible materials such as paper, leather, film is simultaneously measured.
2) FAST Fabric Style test macro
FAST is the test macro of outward appearance, feel and the performance of objective evaluation fabric, belongs to subitem formula multimachine bench-type tester, is developed by Australian Union's science and industrial research.FAST comprises three instruments and a kind of test method; That is: FAST-1 compressometer; The crooked appearance of FAST-2, FAST-3 prolong tensilometer and FAST-4 dimensional stability test method; Measure four basic mechanical performances such as fabric compression, bending, extension, shearing and DIMENSIONAL STABILITY, examine 8 indexs altogether.Paint " fabric fingerprint " according to these performance indications, in order to seamability, the formability of outward appearance, feel and the prediction fabric of estimating fabric.
The bending property of the crooked appearance test fabric of FAST-2 is adopted in this experiment, in order to weigh the stiffening degree of fabric.1, with the sample of 50*13mm with the straight photoelectric sensor of sending into of slide plate, promptly show the bending length when collide in 41.5 о swash plates and fabric limit automatically.Notice that the sample front end can not cover square opening, again pressing plate is placed on above the sample, make the sample front end exceed pressing plate 10mm; Press the START key, slowly promote pressing plate and sample, green light is bright, and it is bright to continue to be pushed to red light, shows bending length, and pressing plate and sample are moved to the original place, and every lining is tested twice.2, bending length is convertible into bending stiffness.
3) the KES-FB-AUTO Fabric Style appearance of Japanese KATO company
The KES-FB system develops by the end filial piety of Japanese river is male.It is the Fabric Style appearance that many individual event mechanics performance determining appearance are formed, and comprises stretching, shearing test apparatus FB1, bend test appearance FB2, and compressing tester FB3, surperficial test instrument FB4 and a microcomputer constitute.Its data read, graphics process, data are resolved with style value calculating etc. and all can on microcomputer, be realized simply.Five kinds of basic mechanical performances such as the stretching of this system testing fabric, bending, compression, shearing, surface property and weight performance are totally 16 mechanical index.The certainty of measurement of this instrument is high, and test index is many, test process and data processing complex.The bending property of KES-FB-2 test fabric is adopted in this experiment.
Bending behavior of woven fabrics characterizes diastrophic complexity of fabric and diastrophic recovery capability respectively with bending stiffness B and crooked hysteresis 2HB.The bending stiffness B value of fabric and crooked hysteresis 2HB value become positive correlation with yarn linear density.During test fabric is cut into the 20*20cm size, places on the instrument and measure, each surveys the warp-wise broadwise once, sense data.
The optimization Test of embodiment 2 terylene hard finishing technologies
Select the cloth hard finishing agent 100g/l for preparing for use, test finishing technique condition is to confirm best hard finishing prescription and process conditions.
1, preliminary drying Influence of Temperature
Experiment condition is following: pick-up rate: 100%, and dip time 1min, two soak two rolls, and preliminary drying 3min bakes 180 ℃, 3min.Experimental result is seen shown in the table 2.
Table 2 preliminary drying temperature is to the influence of terylene stiffness
Can know that by table 2 along with the increase of preliminary drying temperature, the extension elongation of dacron increases, but after temperature was elevated to 95 ℃, it was not obvious to continue the increase of elevated temperature stiffness, so preferred preliminary drying temperature is advisable for 95 ℃.
2, the influence of preliminary drying time
Experiment condition is following: pick-up rate is 100%, dip time 1min, and two soak two rolls, and 95 ℃ of preliminary dryings bake 180 ℃, 3min, experimental result is seen shown in the table 3.
The table 3 preliminary drying time is to the influence of terylene stiffness
Can be known that by table 3 the preliminary drying time is not to influence the boardness principal element, the prolongation of preliminary drying time does not change the stiffness of fabric, so the preferred shortest time 2min that selects.
3, the influence of baking temperature
Experiment condition is following: pick-up rate: 100%, and dipping 1min, two soak two rolls, and 95 ℃ of preliminary drying 2min bake 3min, and experimental result is seen shown in the table 4.
Table 4 baking temperature is to the influence of terylene stiffness
Know that by table 4 raising of baking temperature helps the increase of boardness, temperature is high more; Stiffness is big more, and this is the general character of thermosetting resin, and the increase of broadwise stiffness is particularly evident; For obtaining curing cross-linked greatly, this optimization experiment selects 180 ℃ to bake.
4, bake the influence of time
Experiment condition is following: pick-up rate: 100%, and dipping 1min, two soak two rolls, 95 ℃ of preliminary drying 2min, 180 ℃ bake, and experimental result is seen shown in the table 3.
Table 5 bakes the influence of time to the terylene stiffness
Can be found out that by table 5 time that bakes is advisable with 2 ~ 3min, prolongation bakes the time to reacting unfavorable, and stiffness descends on the contrary.
5, the influence of hard finishing agent concentration
Can obtain the optimum process condition of hard finishing by above-mentioned experiment, as follows: fabric two soaks two and rolls, pick-up rate 100%, and dip time 1min, 95 ℃ of preliminary drying 2min, 180 ℃ bake 3min.Under this technology, change the hard finishing agent concentration obtaining the fabric of different hardness, table 6 is the stiffening situation of Real Silk Habotai and dacron under the different hard finishing agent concentrations.
The different hard finishing agent concentrations of table 6 are to the influence of terylene stiffness
Can know that by table 6 real silk because style own is too soft, still is difficult to distinguish the grade class after the arrangement after hard finishing.Dacron then has tangible grade distinguishing, helps the deciding grade and level of choosing of sample.In conjunction with test data and many people subjective assessment, selected five concentration are respectively 10,20,50,80, and 200g/L puts the sample as freeze proof grade in order, and with three kinds of instrument tests its stiffness are made the science that further scientific evaluation is chosen with the conclusive evidence sample.
The stiffness and the corresponding freeze proof grade of the selected sample of table 7
Wherein 1 grade of frost resistance is best, and 5 grades the poorest.
It below is three kinds of instrument test results' comparison.Mensuration part 1 according to GB/T 18318.1-2009 textiles bending property: inclined plane method regulation; Bending length is the half the of extension elongation; So half result as bending length and FAST-2 test of extension elongation in the table 7 is made comparisons, and the result sees shown in the table 8.
The homemade stiffness tester of table 8 with the FAST-2 test result relatively
Know that by table 8 two instrument test results are more or less the same, the credible result degree is higher.Fig. 1 ~ Figure 10 is the test result of Japanese KES-FB-2 to the sample bending property.Bending stiffness numerical value by Fig. 1 ~ Figure 10 reads is as shown in table 9.
KES-FB-2 style appearance test bending stiffness value when the different cloth hard finishing agents of table 9 are put in order
Can know that by table 9 different hard finishing agent concentrations arrangement fabric warp-wises and broadwise bending stiffness difference down is obvious, show that this experiment sample chooses rationally.
Above-mentioned instance only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (2)
1. textiles frost resistance testing standard sample; It is characterized in that said textiles frost resistance testing standard sample is through being the standard sample lining with the terylene; Adopting the cloth hard finishing agent of variable concentrations to carry out hard finishing to terylene obtains; Use therein cloth hard finishing agent is after to be AB-EP-20 and AB-HGA by the mass ratio of l:0.6 be made into the epoxy resin finishing agent, and be the polyvinyl acetate of 7:1 by mass ratio: the epoxy resin finishing agent adds the polyvinyl acetate mixing and stirring and obtains cloth hard finishing agent; The condition of said hard finishing is: fabric two soaks two and rolls, and pick-up rate is 100%, and dip time is 1 min, and 95 ℃ of preliminary drying 2min bake 180 ℃, 3 min; The hard finishing agent concentration that carries out hard finishing is respectively 10g/L, 20 g/L, 50 g/L, 80 g/L, 200g/L.
2. the preparation method of the described textiles frost resistance of claim 1 a testing standard sample; It is characterized in that it is the standard sample lining that said method comprises with the terylene; Adopt the cloth hard finishing agent of variable concentrations to carry out the step that hard finishing obtains textiles frost resistance testing standard sample to terylene; Use therein cloth hard finishing agent is after to be AB-EP-20 and AB-HGA by the mass ratio of l:0.6 be made into the epoxy resin finishing agent, and be the polyvinyl acetate of 7:1 by mass ratio: the epoxy resin finishing agent adds the polyvinyl acetate mixing and stirring and obtains cloth hard finishing agent; The condition of said hard finishing is: fabric two soaks two and rolls, and pick-up rate is 100%, and dip time is 1 min, and 95 ℃ of preliminary drying 2min bake 180 ℃, 3 min; The hard finishing agent concentration that carries out hard finishing is respectively 10g/L, 20 g/L, 50 g/L, 80 g/L, 200g/L.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106672328A (en) * | 2017-03-06 | 2017-05-17 | 浙江绿龙新材料有限公司 | Preparing method for reverse osmosis membrane supporting body |
| CN110761075A (en) * | 2019-11-04 | 2020-02-07 | 南通大学 | Stiff anti-aging rayon used as sand barrier and preparation method thereof |
| CN112252028A (en) * | 2020-10-16 | 2021-01-22 | 江苏阳光集团有限公司 | Production process of nano-silver antibacterial crease-resistant suit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672328A (en) * | 2017-03-06 | 2017-05-17 | 浙江绿龙新材料有限公司 | Preparing method for reverse osmosis membrane supporting body |
| CN109023949A (en) * | 2017-03-06 | 2018-12-18 | 浙江绿龙新材料有限公司 | The preparation method of improved reverse osmosis membrane supporter |
| CN106672328B (en) * | 2017-03-06 | 2019-01-18 | 浙江绿龙新材料有限公司 | The preparation method of reverse osmosis membrane supporter |
| CN109023949B (en) * | 2017-03-06 | 2020-12-29 | 浙江绿龙新材料有限公司 | Improved reverse osmosis membrane support body preparation method |
| CN110761075A (en) * | 2019-11-04 | 2020-02-07 | 南通大学 | Stiff anti-aging rayon used as sand barrier and preparation method thereof |
| CN110761075B (en) * | 2019-11-04 | 2022-04-22 | 南通大学 | Stiff anti-aging rayon used as sand barrier and preparation method thereof |
| CN112252028A (en) * | 2020-10-16 | 2021-01-22 | 江苏阳光集团有限公司 | Production process of nano-silver antibacterial crease-resistant suit |
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