CN112834380A - Method for rapidly determining fiber content in textile - Google Patents
Method for rapidly determining fiber content in textile Download PDFInfo
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- CN112834380A CN112834380A CN202011643582.7A CN202011643582A CN112834380A CN 112834380 A CN112834380 A CN 112834380A CN 202011643582 A CN202011643582 A CN 202011643582A CN 112834380 A CN112834380 A CN 112834380A
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- 239000000835 fiber Substances 0.000 title claims abstract description 108
- 239000004753 textile Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000001035 drying Methods 0.000 claims abstract description 64
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 11
- 239000002775 capsule Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 23
- 238000004458 analytical method Methods 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000007605 air drying Methods 0.000 description 4
- 238000007602 hot air drying Methods 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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Abstract
The invention discloses a method for rapidly determining the fiber content in a textile, which comprises the following steps: (1) pretreating a textile sample to remove non-fibrous substances to obtain a sample A, wherein the textile sample at least comprises two fibers, namely a first fiber and a second fiber; (2) drying the sample A to a constant weight M0; (3) dissolving the first fiber in the sample A by using a chemical reagent, and cleaning to obtain a sample B; (4) and (3) sequentially carrying out spin-drying and drying on the sample B until the weight is constant, namely M1, and calculating the fiber percentage content of the first fibers and the second fibers by combining the difference value of M0 and M1 with a mass damage correction coefficient. The method for rapidly determining the fiber content in the textile can rapidly analyze the fiber content in the textile, realize the analysis and detection of the fiber content in a short time, and greatly improve the detection efficiency.
Description
Technical Field
The invention relates to the technical field of textile quality detection, in particular to a method for rapidly determining the fiber content in a textile.
Background
In the textile industry, the types of fibers in blended products are often required to be detected and the specific contents of various fibers in the blended products are counted, and the conventional fiber mixing content detection methods mainly comprise a manual splitting method, a chemical dissolving method and a microscope method.
The manual splitting method is to manually split, dry and weigh fibers which can be distinguished by visual inspection, so as to calculate the mass content of the fibers. The method is time-consuming and labor-consuming, and the conditions of missed detection and wrong detection are easy to occur due to insufficient experience of operators, so that the detection result of the mixed content of the fibers is influenced.
The microscopy method is a method that an operator judges the type of each fiber in a detected fabric by means of a microscope (micro projector), counts the number of each fiber, measures the diameter of the fiber, calculates the volume of the fiber, and calculates the weight of the fiber according to the known specific weight of the fiber, thereby calculating the specific content of each fiber in a blended product.
The chemical dissolving method is to dissolve the fiber components of the blended fabric in a set sequence by utilizing the dissolving performance of various fibers in different chemical solvents, weigh the insoluble residues and calculate the proportion of the dissolved components through the mass loss correction coefficient. Compared with a manual splitting method, the chemical dissolving method has higher detection efficiency and can be operated in batches. Specifically, referring to the analysis methods of GBT9995-1997 and GBT2910.1-2009, in the component detection process of the fabric, a series of standard steps including sampling, moisture removal, chemical reagent addition, intermediate moisture removal and the like are included, and the detection of the fabric components is performed according to the standard steps, so that a long time is required for completing the detection of the fabric components, because the test sample specified in the experiment is generally about 1 g, most of water in the test sample can be squeezed out only by a suction filtration device or a hand of an experimenter through the existing intermediate moisture removal, and then the test sample is put into an oven for constant temperature drying, so that the moisture in the test sample is slowly evaporated and dried. The process of drying moisture needs a long time, especially textile samples with more fiber components need to be dissolved and dried for many times, and one sample needs tens of hours for detection, so that the detection efficiency is low, and the detection period is long.
Therefore, there is a need to develop a method for rapidly determining the fiber content in textiles to solve the above technical drawbacks.
Disclosure of Invention
The invention aims to provide a method for rapidly determining the fiber content in a textile, which can rapidly analyze the fiber content in the textile, realize the analysis and detection of the fiber content in a short time and greatly improve the detection efficiency.
In order to achieve the aim, the invention discloses a method for rapidly determining the fiber content in a textile, which comprises the following steps:
(1) pretreating a textile sample to remove non-fibrous substances to obtain a sample A, wherein the textile sample at least comprises two fibers, namely a first fiber and a second fiber;
(2) drying the sample A to a constant weight M0;
(3) dissolving the first fiber in the sample A by using a chemical reagent, and cleaning to obtain a sample B;
(4) and (3) sequentially carrying out spin-drying and drying on the sample B until the weight is constant, namely M1, and calculating the fiber percentage content of the first fibers and the second fibers by combining the difference value of M0 and M1 with a mass damage correction coefficient.
Preferably, after the step (4), the method further comprises a step (5):
repeating steps (3) -4 to determine the fiber content of different fiber compositions in the textile sample.
Preferably, step (2): and (3) sequentially carrying out spin-drying and drying on the sample A until the weight is constant M0.
Preferably, in the step (2), the drying temperature is (105 +/-3) DEG C.
Preferably, in the step (1), the textile sample is extracted by petroleum ether, after the petroleum ether is volatilized, the textile sample is soaked in cold water for a period of time, then is placed in hot water for a period of time, and is stirred and filtered to obtain the sample A.
Preferably, the spin-drying device is adopted to realize spin-drying, the spin-drying device comprises a shell, a rotating frame, a first motor and a filter screen container with an upward opening and used for placing the test sample, the rotating frame is positioned in the shell and can rotate around an upper central line and a lower central line, a plurality of tool positions arranged along the rotating direction of the rotating frame are arranged on the rotating frame, at least one filter screen container is arranged at each tool position, the upper end of the filter screen container inclines upwards towards the direction close to the upper central line and the lower end of the filter screen container inclines downwards towards the direction far away from the upper central line and the lower central line and is arranged in a suspended way, so that the included angle between the central line of the filter screen container and the upper and lower central lines is an acute angle, the first motor is positioned in the shell, the first motor is further located below the rotating frame, and the output end of the first motor is connected with the rotating frame in an assembling mode.
Preferably, the rotating frame includes a base and inclined extension plates, the inclined extension plates are inclined upwards from the edges of the base in a direction away from the upper central line and the lower central line, the inclined extension plates are in the same number as the tooling positions, the tooling positions are formed on the inclined extension plates, the first motor is arranged with the output end facing upwards, and the base is mounted on the output end of the first motor.
Preferably, the casing includes a side wall casing and a middle partition plate disposed in the side wall casing, an upper chamber and a lower chamber are separated from the inside of the side wall casing by the middle partition plate, the first motor is located in the lower chamber, an output end of the first motor upwardly penetrates through the middle partition plate and extends into the upper chamber, and the rotating frame and the filter screen container are located in the upper chamber.
Preferably, the drying is realized by using an oven device, the oven device comprises a box body, a second motor, an impeller, an external exhaust pipe and a filter screen vessel for placing a test sample, a working cavity is arranged in the box body, an air inlet and an air outlet are arranged outside the box body, the air inlet is communicated with the working cavity, the impeller, the external exhaust pipe and the filter screen vessel are respectively positioned in the working cavity, the second motor is installed in the box body, the impeller is assembled at the output end of the second motor, the external exhaust pipe is communicated with the air outlet in a butt joint manner, the filter screen vessel is installed in the external exhaust pipe, an opening of the filter screen vessel is upward and corresponds to the impeller along the height direction of the box body, so that gas blown out by the impeller partially enters the filter screen vessel and then is discharged from the air outlet along the external exhaust pipe, and the rest part of the gas blown out by the impeller circulates in the box body, so that the test sample in the filter sieve vessel is dried in a constant-temperature high-speed flowing environment.
Preferably, the circulating air casing comprises a horizontal casing, and a regular prism table casing and a circular casing which are sequentially protruded downwards from the horizontal casing and have coincident central lines, wherein the large end of the regular prism table casing faces upwards, the circular casing is in butt joint fit with the small end of the regular prism table casing, the air outlet is located on the circular casing, and the air inlet is located on the horizontal casing.
Compared with the prior art, in the method for rapidly determining the fiber content in the textile, non-fiber substances are removed by means of pretreatment, so that the accurate test of the fiber content is improved, and the detection accuracy of the fiber content of the textile is effectively improved. Particularly, the sample dissolved and cleaned by the chemical reagent is sequentially dried and dried, the drying process is carried out before drying, more water is removed, and then the drying process is carried out by the fast flowing hot air drying process, so that the drying constant weight can be realized in a short time, the time for removing the water in the sample is effectively reduced, the fiber content in the textile can be rapidly analyzed, the analysis and the detection of the fiber content can be realized in a short time, and the detection efficiency is greatly improved.
Drawings
Fig. 1 is a schematic perspective view of a spin drying apparatus according to the present invention.
Fig. 2 is a perspective exploded view of the spin drying apparatus shown in fig. 1.
Fig. 3 is a schematic view of the interior of the spin drying apparatus shown in fig. 1, which is cut by a plane passing through the upper and lower center lines.
Fig. 4 is a perspective view illustrating a structure in which a strainer container is mounted to a spin dryer apparatus shown in fig. 1.
Fig. 5 is a schematic perspective exploded view of fig. 4.
Fig. 6 is a schematic plan view of the oven apparatus of the present invention.
Fig. 7 is a schematic plan view of the oven apparatus shown in fig. 6 after projection in the direction indicated by the arrow B.
Fig. 8 is a schematic plan view of the oven apparatus shown in fig. 6 after projection in the direction opposite to the arrow a.
Fig. 9 is a schematic view of the oven apparatus shown in fig. 6 in a state showing a gas flow process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a method for rapidly determining the fiber content in a textile, which comprises the following steps:
(1) pretreating a textile sample to remove non-fibrous substances to obtain a sample A, wherein the textile sample at least comprises two fibers, namely a first fiber and a second fiber;
(2) drying the sample A to a constant weight M0;
(3) dissolving the first fiber in the sample A by using a chemical reagent, and cleaning to obtain a sample B;
(4) and (3) sequentially carrying out spin-drying and drying on the sample B until the weight is constant, namely M1, and calculating the fiber percentage content of the first fibers and the second fibers by combining the difference value of M0 and M1 with a mass damage correction coefficient.
Since there may be more than one composition woven in the textile sample, step (5) is also included after step (4): repeating steps (3) -4 to determine the fiber content of different fiber compositions in the textile sample.
It is understood that the constant weight referred to in the present invention is: the textile material is weighed according to the specified time interval in the drying treatment process, and when the difference of the weighed masses of two consecutive times is less than 0.1 percent of the weighed mass of the next time, the weighed mass of the next time is obtained. The application of the quality impairment correction factor is conventional in the art and will not be described herein.
It should be noted that the chemical agent is used to dissolve the corresponding fiber, which belongs to the technology commonly used in the art, and the specific chemical agent is not described herein to dissolve the corresponding fiber. It should be understood, however, that when two fibers, e.g., a first fiber and a second fiber, are included in a textile sample, the percentage of the first fiber and the percentage of the second fiber can be determined using steps (1) - (4). In another embodiment, when three fibers, such as a first fiber, a second fiber, and a third fiber, are included in the textile sample, the percentage of the first fiber and the second fiber can be determined using steps (1) - (4). After step (4), performing step (5): dissolving a second fiber in the sample by using a chemical reagent corresponding to the second fiber, and cleaning to obtain a sample B1; and (3) sequentially carrying out spin-drying and drying on the sample B1 until the weight is constant, wherein the difference between M2 and M1-M2 is the fiber content of the second fibers, and the residual content is the content of the third fibers. Similarly, the fiber content of more of the fiber components can be determined according to the above description. Wherein the first fiber and the second fiber are fiber compositions of textile samples, such as wool, polyester fiber, acrylic fiber, and the like. Of course, what kind of chemical reagent is adopted is not the key point of the application, and the key point is to remove most of moisture through the spin-drying process, and then the drying efficiency can be improved when the constant temperature hot air drying is carried out in a fast flow manner, and the time for removing moisture is saved.
Specifically, in the step (1), the textile sample is extracted by petroleum ether for 1h, circulation is carried out at least for 6 times per hour, after the petroleum ether of the textile sample is volatilized, the textile sample is immersed in cold water (namely normal temperature water) for 1h, then is immersed in (65 +/-5) DEG C for 1h, the solution is stirred from time to time, and the sample A is obtained by squeezing, suction filtration or centrifugal dehydration. The oil, wax or finishing agent carried by the fiber can be removed through petroleum ether and water, so that errors are avoided, and the accuracy is improved.
In a preferred embodiment, step (2): and (3) sequentially carrying out spin-drying and drying on the sample A until the weight is constant M0. It can be understood that, the drying process is also carried out before drying to remove more moisture, and then the drying process is carried out by the fast flowing constant temperature hot air drying process, so that the drying constant weight can be realized in a shorter time, the time for removing the moisture of the sample is effectively reduced, and further, the drying temperature is (105 +/-3) DEG C.
It is worth noting that the application also provides a spin-drying device for realizing the spin-drying process and an oven device for realizing the rapid drying process, so that the determination efficiency is effectively improved. After most of moisture is removed by the spin-drying device, the sample is sent into an oven device which provides fast flowing constant-temperature hot air to be dried, so that the time for removing the moisture is shortened, and the detection efficiency is improved. Wherein, please refer to fig. 1-9 for the detailed description of the spin-drying device and the oven device.
Referring to fig. 1 to 5, the spin-drying apparatus 100 includes a housing 10, a rotating frame 20, a first motor 30, and a sieve container 40 having an opening 41 facing upward for placing a test sample. The rotating frame 20 is positioned in the shell 10, the rotating frame 20 can also rotate around an upper central line and a lower central line C1, the rotating frame 20 is provided with two tooling positions 21 which are arranged along the rotating direction of the rotating frame 20 (see the direction indicated by an arrow in the rotating frame 20 in figure 5), and each tooling position 21 is provided with a filter screen container 40; of course, the number of the tooling positions 21 may also be three, four or five, but is not limited thereto. The upper end 40a of the sieve container 40 is inclined upward toward the upper and lower center lines C1, and the lower end 40b of the sieve container 40 is inclined downward toward the direction away from the upper and lower center lines C1 and is suspended, so that the angle α between the center line C2 of the sieve container 40 and the upper and lower center lines C1 is an acute angle. The first motor 30 is located in the housing 10, the first motor 30 is further located below the rotating frame 20, the output end 31 of the first motor 30 is connected to the rotating frame 20, and the first motor 30 drives the rotating frame 20 to rotate so as to drive the strainer container 40 to rotate around the upper and lower center lines C1. Specifically, in fig. 2 to 5, the tooling positions 21 are arranged in a central symmetry manner with the upper and lower center lines C1 as the center, so as to facilitate the manufacture of each tooling position 21 on the rotating frame 20, but not limited thereto. More specifically, the following:
as shown in fig. 3, the angle α between the center line C2 of the sieve container 40 and the upper and lower center lines C1 is 40 to 50 degrees, which is designed to more effectively prevent the test sample in the sieve container 40 from being thrown out during the process that the sieve container 40 follows the swinging rotation of the rotary rack 20 around the upper and lower center lines C1. Specifically, in fig. 1 to 5, the rotating frame 20 includes a base 20a and inclined extension plates 20b, which are inclined and extend upward from the edge of the base 20a in a direction away from the upper and lower center lines C1 by the same number as the tooling locations 21, and the tooling locations 21 are formed on the inclined extension plates 20b, so that the strainer container 40 is mounted on the rotating frame 20 and is kept in an inclined state with the rotating frame 20. More specifically, the center line C2 of the screen container 40 is perpendicular to the inclined extension plate 20b to ensure the convenience of mounting the screen container 40 to the inclined extension plate 20 b. For example, the fixture 21 is a fixture through hole, and the filter screen container 40 is inserted into the fixture through hole, so that the filter screen container 40 can be conveniently mounted on and dismounted from the rotating frame 20. It is understood that, when the tooling positions 21 are arranged in a central symmetry manner with respect to the upper and lower center lines C1, the inclined extension plates 20b are correspondingly arranged in a central symmetry manner with respect to the upper and lower center lines C1. To simplify the assembly relationship between the first motor 30 and the rotating frame 20, the first motor 30 is disposed with the output end 31 facing upward, and the base 20a is mounted on the output end 31 of the first motor 30. In addition, to ensure safety, the spin drying apparatus 100 further includes a top cover 50, and the top cover 50 covers the top of the casing 10 to shield the spin basket 20 and the screen container 40 from above the casing 10.
As shown in fig. 1 to 3, the housing 10 includes a sidewall housing 11 and an intermediate partition 12 disposed in the sidewall housing 11, the sidewall housing 11 is separated by the intermediate partition 12 into an upper chamber 13 and a lower chamber 14, the first motor 30 is disposed in the lower chamber 14, an output end 31 of the first motor 30 upwardly penetrates the intermediate partition 12 and extends into the upper chamber 13, and the rotating frame 20 and the filter mesh container 40 are disposed in the upper chamber 13, so that water in the test sample is directly thrown into the upper chamber 13 and then discharged, and the reliability of the operation of the first motor 30 is prevented from being affected by the water thrown into the lower chamber 14. It should be noted that, in order to prevent the risk of short circuit and electric leakage of the first motor 30 caused by water splashing into the lower cavity 14, the intermediate partition 12 seals the upper cavity 13 and the lower cavity 14, and the matching portion between the output end 31 of the first motor 30 and the intermediate partition 12 is sealed, for example, a sealing rubber sleeve is sleeved on the output end 31 of the first motor 30, which is a sealing method known in the art, and therefore, the invention is not limited thereto.
Referring to fig. 6 to 9, the oven apparatus 200 includes a housing 210, a second motor 220, an impeller 230, an outer exhaust pipe 240, and a strainer plate 250. The interior of the box body 210 is provided with a working chamber 211, the exterior of the box body 210 is provided with an air inlet 212 and an air outlet 213, and the air inlet 213 is communicated with the working chamber 211, so that external air can be timely supplemented into the working chamber 211 in the process that the second motor 220 drives the impeller 230 to rotate, and the air in the box body 210 is ensured to be in a balanced state. Impeller 230, outer exhaust duct 240, and filter bowl 250 are each positioned within working chamber 211 such that they are hidden within tank 210. The second motor 220 is mounted to the housing 210, and the housing 210 provides a supporting and fixing function for the second motor 220. The impeller 230 is mounted to the output 221 of the second motor 220 to ensure that the impeller 230 is driven to rotate by the second motor 220. The outer exhaust pipe 240 is in butt communication with the exhaust port 213, so that the moist air entering the outer exhaust pipe 240 generated by air-drying the test sample in the filter dish 250 is directly exhausted from the exhaust port 213 to the outside of the box body 210. The strainer tray 250 is installed in the outer air exhaust pipe 240, the opening 251 of the strainer tray 250 faces upward and corresponds to the impeller 230 along the height direction (i.e. the direction indicated by the arrow a) of the box 210, so that the air blown by the impeller 230 partially enters the strainer tray 250 and is exhausted from the air exhaust port 213 along the outer air exhaust pipe 240, and the rest of the air blown by the impeller 230 circulates in the box 210, so that the test sample in the strainer tray 250 is dried in a constant-temperature high-speed flowing environment, and the flowing process of the air is shown by the hollow arrow in fig. 9. Specifically, in fig. 6 to 9, in order to improve the reliability of the gas flow, the oven device 200 further includes a circulating air casing 260 located in the working chamber 211, the circulating air casing 260 is fixedly assembled with the box body 210 and is provided with an air inlet 261 and an air outlet 262, the impeller 230 is located in the circulating air casing 260, the opening 251 of the filter dish 250 is located right below the air outlet 262, so that the middle portion of the gas blown out from the air outlet 262 is directly blown into the filter dish 250, and the two side portions of the gas blown out from the air outlet 262 flow back to the cavity wall of the working chamber 211, thereby effectively preventing the stability of the temperature in the box body 210 from being affected by excessive outward discharge of the gas in the working chamber 211. More specifically, the following:
as shown in fig. 6 and 7, the second motor 220 is located at the top of the box 210, and the output end 221 of the second motor 220 penetrates downward and vertically into the circulating air casing 260, so that the arrangement of the second motor 220 on the box 210 is more reasonable and compact. Specifically, in fig. 6 to 8, the circulating air casing 260 includes a horizontal casing 260a, and a regular prism casing 260b and a circular casing 260c which are sequentially protruded from the horizontal casing 260a downward and have center lines coinciding with each other, a large end of the regular prism casing 260b faces upward, the circular casing 260c is in butt-joint fit with a small end of the regular prism casing 260b, an air outlet 262 is located on the circular casing 260c, and an air inlet 261 is located on the horizontal casing 260a, so that the design can improve the reliability of the gas inner circulation. For example, the impeller 230 is a centrifugal impeller, but not limited thereto. It can be understood that, when the circulating air casing 260 includes a horizontal casing 260a, a right-angled frustum casing 260b and a circular casing 260c, the output end 221 of the second motor 220 penetrates into the horizontal casing 260a, and correspondingly, the impeller 230 is located in the horizontal casing 260 a. In addition, in order to further improve the reliability of the gas internal circulation, the impeller 230 is displaced from the filter bowl 250 in the height direction of the box 210, but not limited thereto.
As shown in fig. 6 and 7, the filter capsule 250 is detachably mounted in the outer exhaust duct 240, so that the filter capsule 250 is mounted in the outer exhaust duct 240 together with the test sample or removed from the outer exhaust duct 240, thereby improving the convenience of operation. Specifically, in fig. 6 to 8, the outer exhaust duct 240 includes a horizontal duct 241 and a vertical duct 242 which are communicated with each other, and the filter dish 250 is installed in an upper end of the vertical duct 242, so that the gas blown into the filter dish 250 is more smoothly exhausted to the outside of the box body 210 through the outer exhaust duct 240. For example, in fig. 8, the diameter of the vertical duct 242 is larger than that of the horizontal duct 241, but not limited thereto.
As shown in fig. 6, 8 and 9, the box body 210 includes a box body 210a and a door 210b for opening or closing the box body 210, the box body 210a and the door 210b together enclose a working chamber 211, and the second motor 220 is mounted on the box body 210a to facilitate a sampling or lofting operation of an operator.
In the oven apparatus 200, since it further includes a second motor 220, an impeller 230 located in the working chamber 211, an outer exhaust pipe 240, and a filter bowl 250 for placing the test sample, the impeller 230 is mounted on the output end 221 of the second motor 220, the outer exhaust pipe 240 is in butt communication with the exhaust port 213, the filter bowl 250 is mounted in the outer exhaust pipe 240, the opening 251 of the filter bowl 250 faces upward and corresponds to the impeller 230 along the height direction of the box 210, in the process of the second motor 220 driving the impeller 230 to rotate, so that the gas blown out by the impeller 230 partially enters the filter dish 250 and is discharged from the exhaust port 213 along the outer exhaust pipe 240, this allows the humid air generated by air-drying the test sample in the filter bowl 250 to be directly discharged out of the case 210, thereby improving the air drying speed and efficiency of the test sample, and shortening the waiting time of the subsequent test; on the other hand, because only a part of the gas blown out by the impeller 230 is discharged to the outside of the box body 210 by the outside exhaust pipe 240, the temperature change of the box body 210 caused by excessive gas discharge is avoided, and thus the temperature in the box body 210 is ensured to be in a stable state.
More preferably, in order to further improve the testing efficiency, the present application realizes the sequential spin-drying and air-drying of the test sample by means of the cooperation of the spin-drying device 100 and the oven device 200. More importantly, in the spin-drying device 100, as the rotating frame 20 is provided with a plurality of tooling positions 21 arranged along the rotating direction of the rotating frame 20, each tooling position 21 is provided with at least one filter screen container 40, the upper end 40a of each filter screen container 40 inclines upwards towards the direction close to the upper and lower central lines C1, and the lower end 40b of each filter screen container 40 inclines downwards towards the direction far away from the upper and lower central lines C1 and is arranged in a suspended manner, so that the included angle α between the central line of each filter screen container 40 and the upper and lower central lines C1 is an acute angle; before working, a test sample is firstly put into the filter screen container 40, the first motor 30 drives each filter screen container 40 which is arranged in a suspending way to rotate at a high speed around the upper central line C1 through the rotating frame 20, so that water in the test sample in the filter screen container 40 is quickly dried by penetrating through meshes of the filter screen container 40 in the high-speed rotating process, and the test sample treated by the drying device 100 is put into the oven device 200 for drying so as to greatly shorten the waiting time of subsequent tests; and because the opening 41 of the sieve container 40 is upward and the upper end 40a of the sieve container 40 is inclined upward toward the direction close to the upper and lower center lines C1, the lower end 40b of the sieve container 40 is inclined downward toward the direction away from the upper and lower center lines C1 and is in a suspended arrangement, which effectively prevents the test sample in the sieve container 40 from escaping out of the sieve container 40 during high-speed rotation, ensuring operational reliability.
It should be noted that although the drawings do not show the mesh openings of the strainer container 40 and the strainer tray 250, the drawings are not limited to the case where the strainer container 40 and the strainer tray 250 do not have the mesh openings. The high speed means that the first motor 30 has a high rotation speed per minute, for example, up to 10000 rpm or more, but not limited thereto.
Compared with the prior art, in the method for rapidly determining the fiber content in the textile, non-fiber substances are removed by means of pretreatment, so that the accurate test of the fiber content is improved, and the detection accuracy of the fiber content of the textile is effectively improved. Particularly, the sample dissolved and cleaned by the chemical reagent is sequentially dried and dried, the drying process is carried out before drying, more water is removed, then the drying process is used for drying, the drying constant weight can be realized in a short time, the time for removing the water in the sample is effectively reduced, the fiber content in the textile can be quickly analyzed, the analysis and the detection of the fiber content can be realized in a short time, and the detection efficiency is greatly improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. A method for rapidly determining the fiber content of a textile, comprising the steps of:
(1) pretreating a textile sample to remove non-fibrous substances to obtain a sample A, wherein the textile sample at least comprises two fibers, namely a first fiber and a second fiber;
(2) drying the sample A to a constant weight M0;
(3) dissolving the first fiber in the sample A by using a chemical reagent, and cleaning to obtain a sample B;
(4) and (3) sequentially carrying out spin-drying and drying on the sample B until the weight is constant, namely M1, and calculating the fiber percentage content of the first fibers and the second fibers by combining the difference value of M0 and M1 with a mass damage correction coefficient.
2. The method for rapidly determining the fiber content in a textile according to claim 1, further comprising the step (5):
repeating steps (3) -4 to determine the fiber content of different fiber compositions in the textile sample.
3. The method for rapidly determining the fiber content in a textile according to claim 1, wherein the step (2): and (3) sequentially carrying out spin-drying and drying on the sample A until the weight is constant M0.
4. The method for rapidly determining the fiber content in the textile according to claim 1, wherein in the step (2), the drying temperature is (105 ± 3) ° c.
5. The method for rapidly determining the fiber content in the textile according to claim 1, wherein in the step (1), the textile sample is extracted by petroleum ether, after the petroleum ether is volatilized, the textile sample is soaked in cold water for a period of time, then is soaked in hot water for a period of time, and is stirred and filtered to obtain the sample A.
6. The method of claim 1, wherein the spin-drying device is used for spin-drying, the spin-drying device comprises a housing, a rotating frame, a first motor, and a filter screen container with an upward opening for placing the test sample, the rotating frame is disposed in the housing, the rotating frame is rotatable around an upper central line and a lower central line, the rotating frame is provided with a plurality of tool positions arranged along a rotating direction of the rotating frame, each tool position is provided with at least one filter screen container, an upper end of each filter screen container is inclined upward in a direction close to the upper central line and the lower central line, a lower end of each filter screen container is inclined downward in a direction far away from the upper central line and the lower central line and is suspended in the air, so that an included angle between the central line of each filter screen container and the upper central line and the lower central line is an acute angle, and the first motor is disposed in the housing, the first motor is further located below the rotating frame, and the output end of the first motor is connected with the rotating frame in an assembling mode.
7. The method according to claim 6, wherein the rotating frame comprises a base body and inclined extension plates which are inclined upwards from the edges of the base body in the direction away from the upper center line and the lower center line and have the same number as the tooling positions, the tooling positions are formed on the inclined extension plates, the first motor is arranged with the output end facing upwards, and the base body is mounted on the output end of the first motor.
8. The method for rapidly determining fiber content in a textile according to claim 6, wherein the housing comprises a sidewall housing and an intermediate partition disposed in the sidewall housing, the sidewall housing is internally divided by the intermediate partition into an upper chamber and a lower chamber, the first motor is disposed in the lower chamber, an output end of the first motor extends upward through the intermediate partition and into the upper chamber, and the rotating frame and the screen container are disposed in the upper chamber.
9. The method for rapidly determining the fiber content in the textile according to claim 1, wherein the drying is achieved by using an oven device, the oven device comprises a box body, a second motor, an impeller, an outer exhaust pipe and a filter capsule device for placing the test sample, the box body has a working chamber inside, the box body has an air inlet and an air outlet outside, the air inlet is communicated with the working chamber, the impeller, the outer exhaust pipe and the filter capsule device are respectively located in the working chamber, the second motor is installed in the box body, the impeller is installed at the output end of the second motor, the outer exhaust pipe is in butt communication with the air outlet, the filter capsule device is installed in the outer exhaust pipe, the opening of the filter capsule device faces upwards and corresponds to the impeller along the height direction of the box body, so that the gas blown out by the impeller partially enters the filter capsule and then exits from the air outlet along the outer exhaust pipe, and the rest part of the gas blown out by the impeller circulates in the box body, so that the test sample in the filter sieve vessel is dried in a constant-temperature high-speed flowing environment.
10. The method for rapidly determining the fiber content in the textile according to claim 9, wherein the circulating air casing comprises a horizontal casing, a regular-prism-shaped casing and a circular casing, the regular-prism-shaped casing and the circular casing are sequentially protruded downwards from the horizontal casing, the central lines of the regular-prism-shaped casing and the circular casing are coincident, the large end of the regular-prism-shaped casing faces upwards, the circular casing is in butt joint fit with the small end of the regular-prism-shaped casing, the air outlet is located on the circular casing, and the air inlet is located on the horizontal casing.
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