CN209821070U - Quick detecting system of formaldehyde content in fabrics - Google Patents
Quick detecting system of formaldehyde content in fabrics Download PDFInfo
- Publication number
- CN209821070U CN209821070U CN201822277491.0U CN201822277491U CN209821070U CN 209821070 U CN209821070 U CN 209821070U CN 201822277491 U CN201822277491 U CN 201822277491U CN 209821070 U CN209821070 U CN 209821070U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- solution
- motor
- injector
- mounting
- 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.)
- Active
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to a system for rapidly detecting formaldehyde content in textiles, which comprises a glass vessel, white absorbent paper and a solution adding device; from bottom to top, sequentially placing the glass vessel, the white absorbent paper and the textile sample to be detected on a bearing tray of a solution adding device, sequentially adding a first solution and a second solution to the surface of the textile to be detected through the solution adding device, and checking the color change of the white absorbent paper after a certain time; the color was red, indicating that the formaldehyde content was 30ppm or more. Compared with the prior art, the utility model discloses a device has that application method is simple, and detection efficiency is high, economical and practical, advantages such as safety ring guarantor.
Description
Technical Field
The utility model relates to a formaldehyde detection method especially relates to a quick detection method of formaldehyde content in fabrics and device.
Background
Textiles used in daily life contain free formaldehyde and release formaldehyde, and are extremely harmful to human bodies after being contacted with the textiles for a long time. The textile is directly or indirectly contacted with human skin, and the formaldehyde is used as an environmental allergen and can cause allergic dermatitis, color spots and even skin death. Formaldehyde is most sensitive to the stimulation of eyes, and formaldehyde with a certain concentration can cause eyes to be red, swollen and lacrimate; after the volatilized formaldehyde enters a human body along with respiration, the formaldehyde not only has strong stimulation effect on respiratory organs, but also has certain influence on metabolism and endocrine of the human body; formaldehyde, as a teratogenic substance, can cause genetic mutations and even fetal malformations.
The GB 18401-2010 basic safety technical Specification for national textile products, approved and issued by the State quality inspection Bureau, stipulates in the mandatory Standard: the formaldehyde detection amount of the A product is less than or equal to 20mg/Kg, the formaldehyde detection amount of the B product is less than or equal to 75mg/Kg, and the formaldehyde detection amount of the C product is less than or equal to 300 mg/Kg.
The existing formaldehyde testing method in China comprises an aqueous extraction method: extracting the sample in a water bath at 40 ℃ for a certain time, developing the absorption liquid by acetylacetone, measuring the absorbance of formaldehyde in the developing liquid by a spectrophotometer at the wavelength of 412nm, and calculating the content of free formaldehyde in the sample by contrasting with a standard formaldehyde working curve.
Steam absorption method: a fabric sample with certain mass is hung on the water surface in a sealed bottle and is placed in an oven with constant temperature (49 +/-2 ℃) for 20h +/-15 min, the released formaldehyde is absorbed by water and is developed by acetylacetone, the absorbance value of the sample is measured by a spectrophotometer, and the content of the released formaldehyde of the sample is calculated by contrasting a standard formaldehyde working curve.
The methods are all formaldehyde quantitative analysis, the required test time is long, and the test process is complicated. In order to improve the detection efficiency, a high-efficiency and economical detection device needs to be developed, so that whether textiles meet the national standard or not can be detected quickly by a merchant conveniently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a quick detecting system of formaldehyde content in fabrics in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a rapid detection system for formaldehyde content in textiles comprises a glass vessel, white absorbent paper and a solution adding device;
the solution adding device comprises a first lead screw which is horizontally arranged, one end of the first lead screw is connected with the first motor, and the other end of the first lead screw is arranged in the first lead screw mounting rack; the first screw rod is provided with a plurality of first sliding blocks, and the bearing tray is fixedly connected with the first sliding blocks;
vertical mounting plates are arranged on two sides of the first screw rod, and an injector mounting mechanism is arranged between the two vertical mounting plates;
solution injection mechanisms are arranged on two sides of the injector mounting mechanism, each solution injection mechanism comprises a second lead screw, one end of each second lead screw is connected with a second motor, the other end of each second lead screw is connected with a second lead screw mounting seat, and a second sliding block is arranged on each second lead screw; the second sliding block is clamped with the push rod of the injector to drive the push rod of the injector to move up and down; the syringe needle cylinder is fixedly arranged on the syringe mounting mechanism;
from bottom to top, the glass vessel, the white absorbent paper and the textile sample to be detected are sequentially placed on the bearing tray;
the first motor and the second motor are connected through a PLC.
The solution injection mechanism also comprises a solution injection mechanism mounting plate, and the second motor, the second screw rod mounting seat and the injector needle cylinder are fixedly connected with the solution injection mechanism mounting plate; the solution injection mechanism mounting plate is connected with the third sliding block in a sliding manner, a lifting cylinder is arranged on the sliding block, and the output end of the lifting cylinder is connected with the solution injection mechanism mounting plate;
and solution storage tanks matched with the solution outlet of the syringe needle cylinder are arranged on two sides of the first screw rod.
The third motor is connected with the lifting cylinder through a PLC.
Two side plates and a top plate are arranged between the vertical mounting plates, the top plate is connected with the vertical mounting plates, and the side plates are movably connected with the top plate; the side plates and the top plate are transparent glass plates; and a bearing tray inlet or a tray outlet is arranged on the side plate.
The tray inlet and the tray outlet are respectively provided with a sealing brush; and a sealing ring is arranged between the side plate and the vertical mounting plate. The sealing device can prevent the volatilization of phenylhydrazine from causing harm to the body of an operator.
The screw rod is connected with the screw rod mounting seat through a roller bearing.
And the distance between the solution outlet of the syringe needle cylinder and the surface of the textile sample to be detected is 1-3 cm.
And the vertical mounting plate is provided with an air exhaust hole, and the air exhaust hole is connected with an air exhaust device.
The detection method corresponding to the device comprises the following steps:
a method for rapidly detecting the formaldehyde content in textiles comprises the following steps:
preparing a first solution
Preparing 35-45 parts by weight of sulfuric acid and 35-40 parts by weight of water into a sulfuric acid aqueous solution, and adding 0.5-1.5 parts by weight of phenylhydrazine and 15-20 parts by weight of water to prepare the first solution;
preparing a second solution
Dissolving 8-12 parts by weight of anhydrous ferric chloride in 88-92 parts by weight of water to prepare a second solution;
color development test
Placing white absorbent paper on a glassware, and placing the textile fabric to be tested on the white absorbent paper;
soaking the textile fabric to be detected by using the first solution, and then adding the second solution to a soaked part on the fabric; after a certain time, checking the color change of the white absorbent paper; the color is red, which means that the content of formaldehyde is more than 30 ppm; the waiting time is 30 s.
The preparation method of the first solution comprises the following specific steps: preparing a sulfuric acid aqueous solution from 41.7 parts by weight of sulfuric acid and 38.3 parts by weight of water, and adding 1 part by weight of phenylhydrazine and 19 parts by weight of water to prepare a first solution; the preparation method of the second solution comprises the following specific steps: 10 parts by weight of anhydrous ferric chloride was dissolved in 90 parts by weight of water to prepare the second solution.
The mass fraction of the sulfuric acid is 95-98%; the water is tertiary water.
In the color development test step, the first solution and the second solution are quantitatively added by using an injector, and the addition amount of the first solution and the second solution is 0.1-0.15 mL.
Compared with the prior art, use the utility model discloses a device carries out formaldehyde and detects and has following advantage:
(1) the detection speed is high, and the efficiency is high; only two solutions are dripped on the surface of the textile to be detected, so that whether the formaldehyde in the textile exceeds 30ppm can be detected;
(2) the operation is simple, and the operation can be completed without special instrument training for operators;
(3) the detection method is economical and is beneficial to popularization and use;
(4) the detection system is safe and reliable, has high automation degree, and prevents harm to the body of an operator.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic structural view of an injection mechanism of the present invention;
fig. 3 is a schematic structural view of the sealing mechanism of the present invention;
in the figure, 1 is a first motor, 2 is a first lead screw, 3 is a first lead screw mounting seat, 4 is a tray, 5 is a first vertical mounting plate, 6 is a second vertical mounting plate, 7 is a second solution storage tank, 8 is a first solution storage tank, 9 is a second motor, 10 is a second lead screw, 11 is a second lead screw mounting seat, 12 is a second slider, 13 is a third motor, 14 is a third slider, 15 is a third lead screw mounting seat, 16 is a third lead screw, 17 is an injector pressing plate, 18 is an injector push rod, 19 is an injector needle cylinder, 20 is a glass plate, and 21 is a tray inlet.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Examples
A system for rapidly detecting the content of formaldehyde in textiles comprises a glass vessel, white absorbent paper and a solution adding device;
the structure of the solution adding device is shown in fig. 1, and the solution adding device comprises a first screw rod 2 which is horizontally arranged, one end of the first screw rod 2 is connected with a first motor 1, and the other end is arranged in a first screw rod mounting frame 3; the first screw rod is provided with a plurality of first sliding blocks, and the bearing tray 4 is fixedly connected with the first sliding blocks;
two sides of the first screw rod 2 are provided with vertical mounting plates, namely a first vertical mounting plate 5 and a second vertical mounting plate 6, and an injector mounting mechanism is arranged between the two vertical mounting plates; two side plates and a top plate are arranged between the vertical mounting plates, the top plate is connected with the vertical mounting plates, and the side plates are movably connected with the top plate; the side plates and the top plate are transparent glass plates 20; the side plates are provided with bearing tray inlets 21 or bearing tray outlets. The tray inlet 21 and the tray outlet are both provided with a sealing brush, as shown in fig. 3; and a sealing ring is arranged between the side plate and the vertical mounting plate. The injector mounting mechanism is arranged in a closed space formed by the vertical mounting plate, the side plate and the top plate; the injector mounting mechanism comprises a third motor 9, a third screw rod 10 and a third screw rod mounting seat 11 which are connected in sequence; the third motor 9 is arranged on the first vertical mounting plate 5, and the third screw rod mounting seat 11 is arranged on the second vertical mounting plate 6; the third screw rod 10 is provided with a third slide block 12.
The solution injection mechanism is shown in fig. 2 and comprises a second screw rod 16, one end of the second screw rod 16 is connected with a second motor 13, the other end of the second screw rod 16 is connected with a second screw rod mounting seat 15, and a second sliding block 14 is arranged on the second screw rod 16; the second sliding block 14 is clamped with the injector push rod 18 to drive the injector push rod 18 to move up and down; the second screw rod 16, the second motor 13, the second screw rod mounting seat 15 and the injector are all mounted on the solution injection mechanism mounting plate, the injector is detachably connected with the solution injection mechanism mounting plate, the solution injection mechanism mounting plate is connected with the third slide block 12 in a sliding manner, a lifting cylinder is arranged on the slide block, and the output end of the lifting cylinder is connected with the solution injection mechanism mounting plate;
solution storage tanks matched with the solution outlet of the syringe needle cylinder 19 are arranged on two sides of the first screw rod 2. And a first solution storage tank 8 is arranged on the left side of the third screw rod, and a second solution storage tank 7 is arranged on the right side of the third screw rod.
From bottom to top, the glass vessel, the white absorbent paper and the textile sample to be tested are sequentially placed on the bearing tray 4;
the first motor 1, the second motor 13 and the third motor 9 are all connected through a PLC controller.
In the embodiment, all the screw rods are connected with the screw rod mounting seat through roller bearings.
The using process of the device of the embodiment is as follows: placing white absorbent paper in a glass vessel, placing a textile to be detected on the white absorbent paper, placing the white absorbent paper and the textile to be detected on a bearing tray, starting a first motor, driving a first screw rod to move rightwards by the first motor, stopping the movement of the first motor when the bearing tray moves to a solution outlet of a left solution injector, starting a second motor, slowly pressing a push rod of the left solution injector downwards for a certain distance, wherein the distance is determined according to the required solution amount, and the left injector is filled with a first solution; and after the dripping of the first solution is finished, the first motor is started to drive the bearing tray to move rightwards, when the textile soaking part moves to the solution injector on the right side, the solution injection mechanism on the right side is started, the second solution is dripped onto the surface of the textile to be detected, and after a certain time, the first motor is started to send the bearing tray out.
After the solution in the injector is dripped, the second motor is started, the injector push rod is moved to the bottom, the lifting cylinder on the third sliding block is started, the solution injection mechanism mounting plate is lifted, the third motor is started to move the solution injection mechanism to the solution storage tank, the solution injection mechanism mounting plate is put down through the lifting cylinder, the solution outlet of the injector extends to the position below the solution level, the second motor is controlled, the injector push rod moves upwards, the solution is pumped into the injector, the injector needle cylinder extends out of the solution through the lifting cylinder, the injector is moved to the middle position matched with the textile to be detected through the third motor, and the detection is continued.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (7)
1. A system for rapidly detecting the content of formaldehyde in textiles is characterized by comprising a glass vessel, white absorbent paper and a solution adding device;
the solution adding device comprises a first lead screw (2) which is horizontally installed, one end of the first lead screw (2) is connected with the first motor (1), and the other end of the first lead screw is installed in a first lead screw installation rack (3); the first screw rod is provided with a plurality of first sliding blocks, and the bearing tray (4) is fixedly connected with the first sliding blocks;
vertical mounting plates are arranged on two sides of the first screw rod (2), and an injector mounting mechanism is arranged between the two vertical mounting plates;
solution injection mechanisms are arranged on two sides of the injector mounting mechanism, each solution injection mechanism comprises a second screw rod (16), one end of each second screw rod (16) is connected with a second motor (13), the other end of each second screw rod is connected with a second screw rod mounting seat (15), and a second sliding block (14) is arranged on each second screw rod (16); the second sliding block (14) is clamped with the injector push rod (18) to drive the injector push rod (18) to move up and down; the syringe needle cylinder (19) is fixedly arranged on the syringe mounting mechanism;
the glass vessel, the white absorbent paper and the textile sample to be tested are sequentially arranged on the bearing tray (4) from bottom to top;
the first motor (1) and the second motor (13) are connected through a PLC.
2. The system for rapidly detecting the formaldehyde content in the textile according to claim 1, wherein the injector mounting mechanism comprises a third motor (9), a third screw rod (10) and a third screw rod mounting seat (11) which are connected in sequence; the third motor (9) and the third screw rod mounting seat (11) are respectively arranged on the two vertical mounting plates; a third sliding block (12) is arranged on the third screw rod (10);
the solution injection mechanism also comprises a solution injection mechanism mounting plate, and the second motor (13), the second screw rod (16), the second screw rod mounting seat (15) and the injector needle cylinder (19) are fixedly connected with the solution injection mechanism mounting plate; the solution injection mechanism mounting plate is connected with the third sliding block (12) in a sliding manner, a lifting cylinder is arranged on the sliding block, and the output end of the lifting cylinder is connected with the solution injection mechanism mounting plate;
solution storage tanks matched with a solution outlet of the syringe needle cylinder (19) are arranged on two sides of the first screw rod (2);
and the third motor (9) is connected with the lifting cylinder through a PLC (programmable logic controller).
3. The system for rapidly detecting the formaldehyde content in the textile according to claim 1, wherein two side plates and a top plate are arranged between the vertical mounting plates, the top plate is connected with the vertical mounting plates, and the side plates are movably connected with the top plate; the side plates and the top plate are transparent glass plates; the side plate is provided with a bearing tray inlet (21) or a tray outlet.
4. The system for rapidly detecting the formaldehyde content in the textile according to claim 3, wherein the tray inlet (21) and the tray outlet are both provided with a sealing brush; and a sealing ring is arranged between the side plate and the vertical mounting plate.
5. The system for rapidly detecting the formaldehyde content in the textile according to claim 1, wherein the screw rod and the screw rod mounting seat are connected through a roller bearing.
6. The system for rapidly detecting the formaldehyde content in the textile according to claim 1, wherein the distance between the solution outlet of the injector needle cylinder and the surface of the textile sample to be detected is 1-3 cm.
7. The system for rapidly detecting the formaldehyde content in the textile according to claim 1, wherein the vertical mounting plate is provided with an air exhaust hole, and the air exhaust hole is connected with an air exhaust device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277491.0U CN209821070U (en) | 2018-12-29 | 2018-12-29 | Quick detecting system of formaldehyde content in fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277491.0U CN209821070U (en) | 2018-12-29 | 2018-12-29 | Quick detecting system of formaldehyde content in fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209821070U true CN209821070U (en) | 2019-12-20 |
Family
ID=68870497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277491.0U Active CN209821070U (en) | 2018-12-29 | 2018-12-29 | Quick detecting system of formaldehyde content in fabrics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209821070U (en) |
-
2018
- 2018-12-29 CN CN201822277491.0U patent/CN209821070U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209821070U (en) | Quick detecting system of formaldehyde content in fabrics | |
| CN107541463A (en) | A kind of full-automatic on-line early warning diagnosis and treatment apparatus of anaerobic fermentation | |
| CN102207466A (en) | Rapid test kit for benzoyl peroxide (banned additive) in flour and preparation method thereof | |
| US9958370B2 (en) | Method for measuring diffusion performance of acid dye in color paste | |
| CN109596610A (en) | Content of formaldehyde rapid detection method and device in a kind of textile | |
| CN107764810A (en) | A kind of quick detection test paper of Nitrite and preparation method thereof | |
| CN214621995U (en) | Automatic seawater chemical oxygen demand digestion device | |
| CN105092501A (en) | Method for determining mercury content in rapeseed oil | |
| CN204613225U (en) | Autopipette | |
| CN211554030U (en) | Formaldehyde detection device for climate box | |
| CN102621139A (en) | Method for determining free formaldehyde in textile by using full-temperature shake flask cabinet | |
| CN115127743A (en) | Pressure vessel leakage detection device with high reliability | |
| CN201753260U (en) | Automatic hydride generating system for organic tin head-space solid-phase micro-extraction | |
| CN207396234U (en) | A kind of Valve pressure test device | |
| CN102721640B (en) | Method for rapidly measuring number of microcystis cells in water sample | |
| CN108037117B (en) | Method and kit for rapidly detecting industrial hydrogen peroxide residue in food | |
| CN205879966U (en) | Anionic surface active agent autoanalysis device | |
| CN221078475U (en) | Automatic detection equipment for sulfur content of nonferrous metal mineral sample | |
| CN215339501U (en) | Automatic pretreatment device for oil smoke and oil mist | |
| CN219455670U (en) | Sample thawing device for food detection | |
| CN215004925U (en) | Textile formaldehyde tester | |
| CN211718069U (en) | Bituminous mixture acid and alkali resistance testing arrangement | |
| CN213689652U (en) | Instrument for detecting total phosphorus in water | |
| CN215727668U (en) | Device for removing oxidative impurities in isopropanol | |
| CN118275720A (en) | Automatic formaldehyde content testing workstation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |