A device and method for detecting adhesion of down and feather

Abstract

The present invention belongs to the technical field of detection devices, and specifically discloses a device and method for detecting the adhesion of down and feathers. The device includes a blower, an air supply pipeline, a detection tube and a sample rack. The detection tube includes a cylinder with an opening at one end and a closed end and a blowing plate used to cover the opening of the cylinder. The blowing plate is provided with a plurality of mesh holes, and the diameter of the mesh holes is smaller than the diameter of the down and feathers used in the detection. The sample rack is a columnar frame, which is used to be accommodated inside the cylinder. The sample rack is fixed with a sample clamp, which is used to clamp the sample to be detected along the central axis direction of the sample rack. The blower is connected to the blowing plate through the air supply pipeline, and is used to blow air inside the detection tube. The device of the present invention can objectively and accurately measure the adhesion of down and feathers to the sample to be detected. It is simple to operate and is not only applicable to fabrics, but also to other materials. The detection process has no destructive effect on the sample and has strong applicability.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection devices, and more specifically, relates to a device and method for detecting the adhesion of down and feathers. Background Art

[0002] In recent years, "pet-loving" has become a trend, and the number of pet owners continues to expand. However, in the process of getting along with pets, especially in spring and autumn, when pets shed the most hair, pet owners are most troubled by having to deal with pet hair adhering to their clothes. In addition, pet nests and sofas are also hard-hit areas for pet hair to adhere, polluting the environment and making it difficult to clean. At present, the anti-hair performance of fabrics has become one of the innovative technologies that the textile industry is accumulating strength to develop, but its related analytical characterization methods have not yet been unified.

[0003] The adhesion of down to fabrics is the most important indicator for evaluating the anti-sticking effect of fabrics. However, there are few reports on the testing or effect evaluation of the adhesion of down to fabrics in related research fields at home and abroad, and there is a serious lack of relevant testing instruments and characterization methods. Only one group standard T / SDPIA 01-2020 "Anti-stick wool fabrics" has issued a regulation on anti-stick wool knitted fabrics and their quality grades. The group standard stipulates that the quality grades are divided into three grades: superior, first-class, and qualified. Each quality grade includes a number of comprehensive indicators such as the number of sticky hair roots, formaldehyde content, pH value, odor, decomposable carcinogenic aromatic amine dyes, fiber content, bursting strength, pilling, color fastness to sweat, color fastness to friction, color fastness to saliva, color fastness to soaping, color fastness to light, dimensional change rate after washing, surface smoothness, and surface static electricity. Among them, the number of hair roots on the fabric is tested by the Martindale abrasion tester in accordance with the GB / T21196, ASTMD4970, and ISO12947 fabric abrasion resistance test standards. It cannot accurately characterize the adhesion of hair and down to the fabric. In addition, the Martindale abrasion tester is expensive and the testing cost is high. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a hair and down adhesion detection device and method, aiming to solve the problems of the existing hair and down adhesion detection device and the single test standard and high test cost.

[0005] To achieve the above-mentioned purpose, the present invention provides a hair and down adhesion detection device, comprising an air blower, an air supply pipeline, a detection tube and a sample rack, wherein the detection tube comprises a cylinder body with an opening at one end and a closed end at the other end and a blowing plate used to cover the opening of the cylinder body, wherein the blowing plate is provided with a plurality of mesh holes, and the diameter of the mesh holes is smaller than the diameter of the hair and down used in the detection; the sample rack is a columnar frame, which is used to be accommodated in the cylinder body, and a sample clamp is fixedly provided on the sample rack, which is used to clamp the sample to be detected along the central axis direction of the sample rack; the air blower is connected to the blowing plate through the air supply pipeline, and is used to blow air into the detection tube.

[0006] Preferably, the cross-section of the sample rack is a regular polygon, and sample clamps are provided on different faces parallel to its central axis, so as to clamp a plurality of samples to be tested located on different faces of the sample rack.

[0007] Preferably, the sample rack is provided with at least two layers, and the height of each layer is adjustable.

[0008] Preferably, the air supply pipeline includes an air guide tube, a flexible air duct and an air nozzle, one end of the air guide tube is connected to the air supply fan, and the other end is connected to the flexible air duct, the end of the flexible air duct away from the air guide tube is connected to the air nozzle, and the air nozzle is arranged on the blowing plate.

[0009] Preferably, the air nozzle is conical and has a large air inlet and a small air outlet, and the air nozzle is located at the center of the blowing plate.

[0010] Preferably, the air blower comprises a casing, a fan arranged inside the casing, and a control mechanism for controlling the air blowing of the fan, and an air outlet of the fan is connected to the air supply pipeline.

[0011] Preferably, the control mechanism includes a wind speed adjustment knob and a touch screen arranged on the casing.

[0012] Preferably, the detection device of the present invention further comprises a base, the air blower and the detection cylinder are both placed on the base, a positioning pin is provided on the base, and a positioning hole matching with the positioning pin is provided at the bottom of the cylinder.

[0013] According to another aspect of the present invention, there is also provided a method for detecting the adhesion of down and feathers based on the above detection device, comprising the following steps:

[0014] S1. Place feathers and down at the bottom of a cylinder without a sample rack, cover the cylinder with a blower, and start a blower to blow air into the cylinder to evenly disperse the feathers and down in the cylinder space;

[0015] S2, stop blowing, wait for the feathers and down to evenly settle to the bottom of the cylinder, remove the blowing plate, and slowly put the sample rack holding the sample to be tested into the center of the cylinder, with the sample to be tested parallel to the central axis of the cylinder;

[0016] S3, cover the blowing plate and start blowing to make the hair and down fully contact with the sample to be tested;

[0017] S4, stop blowing, remove the blowing plate, slowly take out the sample rack along the axial direction of the cylinder, tap the sample to be tested fixed on the sample rack to make the hair and down that are not attached to the sample to be tested fall off, remove the sample to be tested, and count the hair and down attached to it.

[0018] Preferably, in steps S1 and S3, the blowing rate is 5 mm / s to 15 mm / s.

[0019] In general, the above technical solution conceived by the present invention has the following beneficial effects compared with the prior art:

[0020] (1) The device of the present invention has a simple structure, is easy to operate, and can objectively and accurately measure the adhesion of down to fabrics.

[0021] (2) By designing the sample rack structure, the device of the present invention can be used to simultaneously perform parallel comparison tests on multiple samples of different sizes.

[0022] (3) In addition to detecting the anti-hair-sticking performance of fabrics, the device of the present invention can also detect the adhesion of hair and down to other materials, and has wide applicability.

[0023] (4) The detection method of the present invention is easy to operate, has no destructive effect on the sample during the detection process, has low restrictions on the size specifications of the fabric to be detected, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the overall structure of a down adhesion detection device provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure inside the casing provided by an embodiment of the present invention;

[0026] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0027] 1-air supply fan, 11-housing, 12-fan, 13-control mechanism, 13a-controller, 13b-switch, 13c-wind speed adjustment knob, 13d-touch screen; 2-air supply pipeline, 21-air guide tube, 22-flexible air duct, 23-air nozzle; 3-detection tube, 31-cylinder body, 32-blowing plate; 4-sample rack; 5-sample clamp; 6-base; 7-locating pin; 8-universal wheel; 9-brake. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] like Figure 1 As shown, a down adhesion detection device provided by an embodiment of the present invention includes an air supply fan 1, an air supply pipeline 2, a detection tube 3, a sample rack 4, a sample clamp 5, a base 6 and a positioning pin.

[0030] The air supply fan 1 includes a casing 11, a fan 12 and a control mechanism 13. The interior of the casing 11 is used to load components such as the fan 12 and the control mechanism 13. The present invention does not specifically limit the shape of the casing 11, and it can be similar to a rectangular parallelepiped. The air outlet of the fan 12 is connected to the air supply pipeline 2, and air is blown into the detection tube 3 through the air supply pipeline 2. The control mechanism 13 is used to control the air blowing of the fan 12, and may include a controller 13a, a switch 13b, and a wind speed adjustment knob 13c. In a preferred embodiment, in order to achieve more automated control, the control mechanism 13 also includes a touch screen 13d, and the fan 12, the switch 13b, the wind speed adjustment knob 13c, and the touch screen 13d are electrically connected through the controller 13a. In combination Figure 1 and Figure 2 As shown, the switch 13b can be arranged on the side of the top of the casing 11 to control the start and stop of the blower 1. The wind speed adjustment knob 13c can be arranged on the panel at the top of the casing 11 facing the detection tube 3 to control the blowing rate of the fan 12; preferably, the wind speed adjustment knob 13c is provided with a corresponding wind speed scale to facilitate visual and precise adjustment of the wind speed. The touch screen 13d can also be arranged on the panel at the top of the casing 11 facing the detection tube 3. The touch screen 13d is provided with buttons such as [Start], [Stop], [Reset], and [Set Blowing Time]. By manually setting the working time, the fan 12 and the switch 13b are adjusted to control the blowing time. The operation is simple and the test is objective.

[0031] like Figure 1As shown, the detection cylinder 3 includes a cylinder body 31 and a blowing plate 32. One end of the cylinder body 31 is open, and the other end is closed by a bottom plate. The blowing plate 32 is used to cover the opening of the cylinder body 31. A plurality of mesh holes are evenly arranged on the blowing plate 32. The blowing plate 32 with mesh holes of different sizes is replaced according to the size of the hair and down used in the detection, so that the diameter of the mesh hole is smaller than the diameter of the hair and down used in the detection, so as to avoid the hair and down flying out of the mesh holes of the blowing plate 32 when blowing air inside the cylinder body 31, thereby ensuring the accuracy of the test results.

[0032] The sample rack 4 is a columnar frame. The size of the sample rack 4 is smaller than the internal size of the cylinder 31, so that the sample rack 4 can be accommodated inside the cylinder 31 when testing the adhesion of hair and down to the sample. The present invention does not specifically limit the cross-sectional shape of the sample rack 4, and it can be a polygon or a circle, preferably a regular polygon, so that the test results are more objective and accurate when comparing the parallelism of multiple samples. A sample clamp 5 is fixedly arranged on the sample rack 4, which is used to clamp the sample to be tested along the central axis direction of the sample rack 4; preferably, the sample rack 4 is provided with sample clamps 5 on different surfaces parallel to its central axis, so as to facilitate the simultaneous testing of multiple samples. As a preferred embodiment, the sample rack 4 is provided with at least two layers to increase the number of samples to be tested in one test. Further preferably, the height of each layer is adjustable, so as to achieve the testing of samples of different sizes and different materials on a device of the present invention.

[0033] Combination Figure 1 and Figure 2 As shown, the air supply pipeline 2 includes an air guide tube 21, a flexible air duct 22 and an air nozzle 23. The air guide tube 21 passes through the side wall of the housing 11, one end of which is connected to the air outlet of the fan 12 inside the housing 11, and the other end is connected to the flexible air duct 22. The end of the flexible air duct 22 away from the air guide tube 21 is connected to the air nozzle 23, and the air nozzle 23 is arranged on the blowing plate 32. As a preferred embodiment, the air nozzle 23 is conical and has a large air inlet and a small air outlet. The air nozzle 23 is located at the center of the blowing plate 32, so that the hair and down inside the cylinder 31 are evenly dispersed when blowing, ensuring the accuracy of the test results.

[0034] like Figure 1 As shown, as a preferred embodiment, the device of the present invention also includes a base 6, the air blower 1 and the detection tube 3 are both placed on the base 6, a positioning pin 7 is provided on the base 6, and a positioning hole matching the positioning pin 7 is provided on the bottom plate of the cylinder body 31, so as to facilitate the fixing of the position of the detection tube 3 and ensure that it will not move during detection, thereby ensuring accurate test results.

[0035] In another embodiment, a slidable universal wheel 8 is provided under the base 6, and a brake 9 is provided on the universal wheel 8 to facilitate the movement and placement of the detection device and reduce the restrictions on the use scenarios of the device.

[0036] The working process of the hair and down adhesion detection device of the present invention is as follows:

[0037] (1) Fix the brake 15 on the universal wheel 8, connect the detection device to the power supply, turn on the switch 13b, turn on the device, click the [Reset] button on the touch screen 13d, and it will automatically reset after being idle for one minute;

[0038] (2) Take out the sample rack 4 from the cylinder 31 of the detection cylinder 3, place the feathers and down at the bottom of the cylinder 31, cover the upper opening of the cylinder 31 with the blowing disk 32, rotate the wind speed adjustment knob 13c clockwise to set the blowing speed, click the [Set Blowing Time] button on the touch screen 13d to set the blowing time, click the [Start] button on the touch screen 13d, the fan 12 starts, and blows the feathers and down inside the cylinder 31 through the air supply pipeline 2 and the blowing disk 32 to pre-disperse and evenly distribute them;

[0039] (3) The sample to be tested is fixed vertically on the sample holder 4 taken out by adjusting the sample clamp 5. After the blowing is completed, wait for the feathers and down to evenly settle to the bottom of the cylinder 31, remove the blowing plate 32 covering the upper end of the detection cylinder 3, and slowly put the sample holder 4 with the sample to be tested into the center of the cylinder 31 along the central axis direction of the cylinder 31, with the sample to be tested parallel to the central axis of the cylinder 31;

[0040] (4) Cover the upper end of the cylinder 31 with the blowing plate 32, click the [Set Blowing Time] button on the touch screen 13d to set the blowing time, click the [Start] button on the touch screen 13d, the fan 12 starts, and blows air into the cylinder 31 through the air supply pipeline 2 and the blowing plate 32, so that the hair and down are fully in contact with the test sample through the blowing;

[0041] (5) After the air blowing is completed, remove the air blowing plate 32 covering the upper end of the test tube 3, slowly take out the sample holder 4 along the axial direction of the tube body 31, and gently tap the test sample fixed on the sample holder 4. After testing, it is usually found that the hair and down that are not attached to the test sample can be knocked off by tapping three times. Loosen the sample clamp 5, remove the test sample, and count the hair and down attached to it. Slowly put the sample holder 4 back into the inside of the tube body 31 along the central axis of the tube body 31;

[0042] (6) After the whole process is completed, the switch 13b is turned off, the power supply is disconnected, the brake 9 on the universal wheel 8 is released, and the detection device is returned to its original position.

[0043] In some embodiments, when testing the anti-hair-sticking performance of fabrics, in order to more objectively and accurately measure the adhesion of hair and down to fabrics, the amount of hair and down used is positively correlated with the number of fabrics. If there are N pieces of fabrics of 18 cm × 18 cm in size (1≤N≤4), ignoring the mass of the fabrics, the corresponding amount of hair and down used is (N×0.01) g, and the corresponding number of hair and down is N×(800~1000) roots. The blowing time in each step (2) and step (4) is 60s~180s, and the blowing rate is 5mm / s~15mm / s. After the blowing action in step (3) is completed, the sign of uniform sedimentation of hair and down is that the hair and down are evenly distributed at the bottom of the cylinder 31 (taking the bottom area of ​​about 0.07 square meters as an example), about N×(11429-14286) roots / square meter.

[0044] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A down adhesion detection device, characterized in that: The invention comprises an air supply fan (1), an air supply pipeline (2), a detection cylinder (3) and a sample rack (4); the detection cylinder (3) comprises a cylinder (31) with an opening at one end and a closed end at the other end, and a blowing disk (32) used to cover the opening of the cylinder (31); the blowing disk (32) is provided with a plurality of mesh holes, the diameter of the mesh holes being smaller than the diameter of the hair and down used in the detection; the sample rack (4) is a columnar frame, used to be accommodated in the cylinder (31); a sample clamp (5) is fixedly provided on the sample rack (4) for clamping a sample to be detected along the central axis direction of the sample rack (4); the air supply fan (1) is connected to the blowing disk (32) through the air supply pipeline (2) and is used to blow air into the detection cylinder (3).

2. The hair and down adhesion detection device according to claim 1, characterized in that: The cross-sectional shape of the sample rack (4) is a regular polygon, and sample clamps (5) are arranged on different faces parallel to its central axis, so as to clamp a plurality of samples to be tested located on different faces of the sample rack (4).

3. The hair and down adhesion detection device according to claim 2, characterized in that: The sample rack (4) is provided with at least two layers, and the height of each layer is adjustable.

4. The hair and down adhesion detection device according to claim 1, characterized in that: The air supply pipeline (2) comprises an air guide tube (21), a flexible air duct (22) and an air nozzle (23); one end of the air guide tube (21) is connected to the air supply fan (1), and the other end is connected to the flexible air duct (22); one end of the flexible air duct (22) away from the air guide tube (21) is connected to the air nozzle (23); and the air nozzle (23) is arranged on the blowing plate (32).

5. The hair and down adhesion detection device according to claim 4, characterized in that: The air nozzle (23) is conical and has a large air inlet and a small air outlet. The air nozzle (23) is located at the center of the blowing plate (32).

6. The hair and down adhesion detection device according to claim 1, characterized in that: The air blower (1) comprises a casing (11), a fan (12) arranged inside the casing (11), and a control mechanism (13) for controlling the air blowing of the fan (12); an air outlet of the fan (12) is connected to the air supply pipeline (2).

7. The hair and down adhesion detection device according to claim 6, characterized in that: The control mechanism (13) comprises a wind speed adjustment knob (13c) and a touch screen (13d) arranged on the housing (11).

8. The hair and down adhesion detection device according to claim 1, characterized in that: It also comprises a base (6), the air blower (1) and the detection cylinder (3) are both placed on the base (6), a positioning pin (7) is provided on the base (6), and a positioning hole matching with the positioning pin (7) is provided at the bottom of the cylinder (31).

9. A method for detecting the adhesion of down based on the down adhesion detection device according to any one of claims 1 to 8, characterized in that: The steps include: S1, placing feathers and down at the bottom of a cylinder (31) not equipped with a sample rack (4), covering the air blowing plate (32), and starting the air blower (1) to blow air into the cylinder (31), so as to evenly disperse the feathers and down in the internal space of the cylinder (31); S2, stop blowing, wait for the feathers and down to evenly settle to the bottom of the cylinder (31), remove the blowing plate (32), and slowly place the sample holder (4) holding the sample to be tested into the center of the cylinder (31), with the sample to be tested parallel to the central axis of the cylinder (31); S3, covering the blowing plate (32), and starting the blowing to make the hair and down fully contact with the sample to be tested; S4, stop blowing, remove the blowing plate (32), slowly take out the sample holder (4) along the axial direction of the cylinder (31), tap the sample to be tested fixed on the sample holder (4) to make the hair and down that are not attached to the sample to be tested fall off, remove the sample to be tested, and count the hair and down attached to it.

10. The method according to claim 9, characterized in that: In steps S1 and S3, the blowing rate is 5 mm / s to 15 mm / s.

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