CN103616498B - A kind of textile non-destructive pH value method of testing and testing apparatus - Google Patents
A kind of textile non-destructive pH value method of testing and testing apparatus Download PDFInfo
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- CN103616498B CN103616498B CN201310576345.7A CN201310576345A CN103616498B CN 103616498 B CN103616498 B CN 103616498B CN 201310576345 A CN201310576345 A CN 201310576345A CN 103616498 B CN103616498 B CN 103616498B
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Abstract
The present invention discloses a kind of textile non-destructive pH value method of testing and testing apparatus, the method is: be fixed on by textile on the equipment of the present invention's design, then other external impetus equipment (micropump) is utilized to realize extract uninterrupted circulation from down to up, by shower nozzle fabric in test specification sprayed, obtain product pH value eventually through test extract.This method of testing adopts non-destructive detection technique, can not damage the textile of test or damage, and as test passes, this textile can continue to use, and can save ample resources; And this method of testing is simple, and efficiency is higher.
Description
Technical field
The present invention relates to textile inspection technology, specifically a kind of textile non-destructive pH value method of testing and testing apparatus.
Background technology
The pH value of human normal skin, at 5.5-7.0, in faintly acid, to ensure the balance of resident bacterium, suppresses the intrusion of germ.Potential of hydrogen on textile is abnormal, and exceed the scope that human body skin is suitable, be easy to cause the diseases such as pruitus, allergy, inflammation, even insulting sweat gland system and nervous system, if things go on like this will certainly affect health.
Textile is taken material and is weaved at it, to dye and in the process such as Final finishing, usually need some acid or alkali electroless auxiliary agents with the use of, if these chemical assistant consumptions are too high, wash insufficient, the textile made take in process with contact human skin after, the microenvironment of human body skin can be destroyed, and then have influence on the health of human body.Therefore, in order to protect the health and safety of the mankind, China has formulated the index controlling pH value of fabrics in relevant textile standards, specify in GB18401-2010 " national general safety technical code for textile products " the pressure standard that State General Administration for Quality Supervision's approval is issued: its pH value range of category-A product is 4.0-7.5, its pH value range of category-B product is its pH value range of 4.0-8.5, C series products is 4.0-9.0; Wherein infant's textile product should meet category-A requirement, and directly the product of contact skin at least should meet category-B requirement, and the product of non-direct contact skin at least should meet C generic request; Must enter the non-final product of wet process in subsequent machining technology, pH value can be relaxed between 4.0-10.5.
In the mensuration that existing standard GB/T/T7573 method is water extract pH.Its principle is: choose representational sample, cut the fragment into about 5mm × 5mm, and each test sample gets 3 Duplicate Samples, is (2.00 ± 0.05) g.Under room temperature, each test specimens be placed in tool plug flask respectively and add the Klorvess Liquid that 100mL distilled water or deionized water or standard specifies, covering tightly bottle stopper, 2h ± 5min on mechnical oscillator, and record extract temperature.Glass electrode is immersed first part of extract, until its indicating value is constant, then take out test second part, the 3rd part of extract pH value, the average recording second and third part of extract pH value is measured value.
But there is following shortcoming in existing pH value of fabrics method of testing:
(1) test because said method needs a certain position choosing textile to shred, textile is produced and destroys, and this destruction cannot make up, and causes a large amount of wastings of resources thus.Certainly will cause damage to consumer or production producer, also not meet the requirement of building a conservation-minded society.
(2) test duration is long, and need the extraction process carrying out 2h ± 5min, efficiency is lower.
Summary of the invention
In order to overcome the shortcoming of existing pH value method of testing, the technical matters that quasi-solution of the present invention is determined is: propose a kind of textile non-destructive pH value method of testing and testing apparatus.The method is the method for non-destructive testing, both can not cause any destruction to textile, and detection efficiency is higher simultaneously, and can obtain reliable test result.
The technical scheme that the present invention solves described method and technology problem is: design a kind of textile non-destructive pH value method of testing, and this method of testing adopts following steps:
1). directly fix sample; By sample to be tested directly with rubber ring be fixed on the liquid storing barrel that known extract is housed suitable for reading on, and the sample to be tested making liquid storing barrel suitable for reading is open and flat;
2). spraying and extracting sample; Fasten liquid storing barrel upper cover, make the upper cover of liquid storing barrel and fastening form closed container, then adopt cycle power device to make the extract in closed container from top to bottom move in circles dipping by sample in spray mode, the pH value of extraction sample;
3). complete test: at interval of 10 minutes, 10 milliliters of extracts are taken out from closed container, known method is adopted to carry out pH value test, supplement the new extract taking out respective amount simultaneously, continue spraying and extracting sample, until the absolute value of the difference of the pH value of twice test in front and back is less than 0.2, namely accuses extraction and terminate, complete pH value non-destructive testing.
A kind of textile non-destructive pH value testing apparatus, is characterized in that this testing apparatus requires design according to above-mentioned textile non-destructive pH value method of testing, mainly comprises liquid storing barrel, upper cover, seedpod of the lotus spray head, extract cycle power device and rubber ring; Annulus platform is designed with in the middle part of the sidewall of described liquid storing barrel, the side wall upper part of liquid storing barrel is scrounged annular recess, described upper cover is capped, its underpart shade and described annulus platform match, in its top crown, seedpod of the lotus spray head is installed, and seedpod of the lotus spray head water delivering orifice is just to the center suitable for reading of liquid storing barrel, the upper cover of described liquid storing barrel and fastening forms closed container; Seedpod of the lotus spray head is connected with the liquid outlet of extract cycle power device and liquid storing barrel lower sidewall successively through connecting line, and the lower sidewall of liquid storing barrel also has liquid taking port, and liquid taking port is provided with bang-bang control pipeline; Rubber ring coordinates with annular recess, for sample to be tested is fixed on the suitable for reading of liquid storing barrel.
Compared with prior art, the beneficial effect of measurement techniques & apparatuses of the present invention is: adopt non-destructive detection technique, can not damage the textile of test or damage, and as test passes, this textile can continue to use, and can save ample resources; And detection efficiency is higher, testing result is reliable.
Accompanying drawing explanation
Fig. 1 is the testing apparatus one-piece construction schematic diagram that a kind of embodiment of a kind of textile of the present invention non-destructive pH value method of testing uses.
Fig. 2 is the sectional structure schematic diagram of the testing apparatus liquid storing barrel that a kind of embodiment of a kind of textile of the present invention non-destructive pH value method of testing uses.
Fig. 3 is that schematic diagram fixed by the testing apparatus sample that a kind of embodiment of a kind of textile of the present invention non-destructive pH value method of testing uses.
Embodiment
The present invention is described in detail below in conjunction with embodiment and accompanying drawing thereof.Embodiment is the concrete enforcement carried out premised on technical scheme of the present invention, gives detailed embodiment and process.But the claims of the application is not limited to the description of following embodiment.
The textile non-destructive pH value method of testing (being called for short method of testing, see Fig. 1-3) of the present invention's design, comprises following operation steps:
1). directly fix sample; By sample to be tested (representing with B) directly with rubber ring 5 be fixed on the liquid storing barrel 1 that known extract is housed suitable for reading on, and the sample to be tested making liquid storing barrel 1 suitable for reading is open and flat;
2). spraying and extracting sample; Fasten liquid storing barrel upper cover 2, make liquid storing barrel 1 form closed container with the upper cover 2 fastened, then adopt cycle power device 4 to make the extract in closed container from top to bottom move in circles dipping by sample to be tested in spray mode, the pH value of extraction sample;
3). complete test: at interval of 10 minutes, 10 milliliters of extracts are taken out from closed container, known method is adopted to carry out pH value test, supplement the new extract taking out respective amount simultaneously, continue spraying and extracting sample, until the absolute value of the difference of the pH value of twice test in front and back is less than 0.2, namely accuses extraction and terminate, complete pH value non-destructive testing.
Described known extract refers to the extract by GB GB/T7573-2009 requirement configuration; Described known pH method of testing carries out pH value test after referring to and adopting pH meter required by GB GB/T7573-2009 and the calibration of regulation calibration steps.
The present invention devises a kind of textile non-destructive pH value testing apparatus simultaneously and (is called for short equipment, see Fig. 1-3), it is characterized in that this testing apparatus requires design according to textile non-destructive pH value method of testing of the present invention, mainly comprise liquid storing barrel 1, upper cover 2, seedpod of the lotus spray head 3, extract cycle power device 4 and rubber ring 5; Annulus platform 1.1 is designed with in the middle part of the sidewall of described liquid storing barrel 1, the side wall upper part of liquid storing barrel 1 has annular recess 1.2, described upper cover 2 is capped, its underpart shade and described annulus platform 1.1 match, in its top crown, seedpod of the lotus spray head 3 is installed, and the water delivering orifice of seedpod of the lotus spray head 3 is just to the center suitable for reading of liquid storing barrel 1, described liquid storing barrel 1 forms closed container with the upper cover 2 fastened; Seedpod of the lotus spray head 3 is connected with the liquid outlet of extract cycle power device 4 and liquid storing barrel 1 lower sidewall successively through connecting line, and the lower sidewall of liquid storing barrel 1 also has liquid taking port, and liquid taking port is provided with bang-bang control pipeline 1.3; Described rubber ring 5 coordinates with annular recess 1.2, for sample to be tested is fixed on the suitable for reading of liquid storing barrel 1.
Described extract cycle power device 4, rubber ring 5 and bang-bang control pipeline 1.3 are commercially available; Described extract cycle power device 4 embodiment is micropump.
The present invention does not address part and is applicable to prior art.
Claims (2)
1. a textile non-destructive pH value method of testing, this method of testing adopts following steps:
1). directly fix sample: by sample to be tested directly with rubber ring be fixed on the liquid storing barrel that known extract is housed suitable for reading on, and the sample to be tested making liquid storing barrel suitable for reading is open and flat; Described known extract refers to the extract by GB GB/T7573-2009 requirement configuration;
2). spraying and extracting sample: fasten liquid storing barrel upper cover, the upper cover of liquid storing barrel and fastening is made to form closed container, then adopt cycle power device to make the extract in closed container from top to bottom move in circles dipping by sample to be tested in spray mode, sample is extracted;
3). complete test: at interval of 10 minutes, 10 milliliters of extracts are taken out from closed container, known pH method of testing is adopted to test, supplement the new extract of the respective amount of taking out simultaneously, continue spraying and extracting sample, until the absolute value of the difference of the pH value of twice test in front and back is less than 0.2, namely accuses extraction and terminate, complete pH value non-destructive testing; Described known pH method of testing carries out pH value test after referring to and adopting pH meter required by GB GB/T7573-2009 and the calibration of regulation calibration steps.
2. a textile non-destructive pH value testing apparatus, it is characterized in that this testing apparatus requires design according to textile non-destructive pH value method of testing according to claim 1, mainly comprise liquid storing barrel, upper cover, seedpod of the lotus spray head, extract cycle power device and rubber ring; Annulus platform is designed with in the middle part of the sidewall of described liquid storing barrel, the side wall upper part of liquid storing barrel has annular recess, described upper cover is capped, its underpart shade and described annulus platform match, in its top crown, seedpod of the lotus spray head is installed, and seedpod of the lotus spray head water delivering orifice is just to the center suitable for reading of liquid storing barrel, the upper cover of described liquid storing barrel and fastening forms closed container; Seedpod of the lotus spray head is connected with the liquid outlet of extract cycle power device and liquid storing barrel lower sidewall successively through connecting line, and the lower sidewall of liquid storing barrel also has liquid taking port, and liquid taking port is provided with bang-bang control pipeline; Rubber ring coordinates with annular recess, for sample to be tested is fixed on the suitable for reading of liquid storing barrel.
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| CN104502567B (en) * | 2014-09-15 | 2016-05-11 | 中国纺织信息中心 | A kind of immersion-type index of quality checkout gear used for textiles |
| CN109269961B (en) * | 2018-11-19 | 2021-04-06 | 上海工程技术大学 | Fabric moisture permeability measuring instrument based on acid-base color development imaging |
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| WO2012130006A1 (en) * | 2011-03-31 | 2012-10-04 | 香港纺织及成衣研发中心有限公司 | Method and system for measuring formaldehyde content in fabrics |
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| JPS63221235A (en) * | 1987-03-09 | 1988-09-14 | Endou Fumio | Detection of formaldehyde in clothing |
| CN101281140A (en) * | 2008-01-10 | 2008-10-08 | 浙江传化股份有限公司 | Rapid measuring method of fabric pH value |
| CN101736569A (en) * | 2009-12-01 | 2010-06-16 | 华南师范大学 | Non-destructive testing method for formaldehyde content of textiles |
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