Sampling detection structure for textile finishing agent and preparation method of textile finishing agent

Abstract

The invention discloses a sampling detection structure for a fabric finishing agent and a finishing agent preparation method thereof, and relates to the technical field of reagent detection.The sampling detection structure comprises a detection platform and a water pipe, a through hole is formed in the center of the detection platform in a penetrating mode, and the water pipe is fixedly connected to the bottom of the center of the detection platform and fixedly mounted to the output end of an external high-pressure water pump; the device further comprises an upper clamping mechanism. The upper sealing ring and the lower sealing ring are matched to seal the exterior of the to-be-detected fabric fragment, the situation that the to-be-detected fabric fragment is clamped unstably due to uneven clamping force in the detection process is prevented, in addition, the to-be-detected fabric fragment is located in a closed environment, the accuracy of a hydrostatic pressure test result is kept, and the detection efficiency is improved. The situation that the fabric fragments to be detected are clamped loosely in the hydrostatic pressure testing process, water flow leakage is caused, finally water flow overflow is caused, and the waterproof performance detection result of the fabric finishing agent is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of reagent detection, in particular to a sampling detection structure for a fabric finishing agent and a finishing agent preparation method thereof. Background Art

[0002] In the textile industry, the testing of fabric finishing agents is an important quality control link. Its testing methods include waterproofness test, oil resistance test, stain resistance test, etc. The waterproofness test also includes hydrostatic pressure test, water stain test, water absorption test and water permeability test.

[0003] The hydrostatic pressure test evaluates the waterproof performance of the fabric by measuring the hydrostatic pressure it is subjected to, that is, the resistance encountered by water passing through the fabric. This involves increasing the water pressure until water droplets appear on the other side of the fabric, thereby measuring its waterproofness. It is mainly done by spraying the fabric treatment agent to be tested on the fabric. After the fabric finishing agent is completely formed on the fabric surface, a sample of the sprayed fabric is cut and placed in the equipment for hydrostatic pressure testing;

[0004] In the prior art, when conducting hydrostatic testing, the fabric to be tested needs to be partially fixed by a clamping device, water is added to the tester through a water pump, and the water pressure is slowly increased to a predetermined test pressure. The pressure gauge reading needs to be closely monitored to ensure that the water pressure is stable. The water injection direction can be selected to be from below the tester line. During this test, as the water pressure gradually increases, the surface of the fabric, which was originally a flat plane, will gradually expand to form an upwardly convex fabric plane, and water seepage will occur as the water pressure gradually increases. During this process, the edge of the fabric is clamped by the clamping force from the clamping device. As well as the pressure from the water flow, the stress at the connection with the clamping device will gradually increase, which will cause the fabric to separate from the clamping device, causing the water to flow out from the separation point, reducing the water pressure, and affecting the test results of the waterproofness of the fabric finishing agent. When the water pressure is too high, some fabrics with relatively fragile fibers will be broken, and the water originally used for the hydrostatic pressure test of the fabric finishing agent will flow out along the gaps in the broken fabrics. More seriously, it may cause the fabric to burst suddenly, and the splashing water will carry fabric fragments out, which may easily cause safety hazards to the testing work environment and testing personnel.

[0005] To solve the above problems, we propose a sampling detection structure for fabric finishing agents and a finishing agent preparation method thereof. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of this, and in view of the deficiencies in the prior art, the present invention provides a sampling detection structure for fabric finishing agents to solve the problems raised in the above background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling detection structure for a fabric finishing agent, comprising a detection platform and a water pipe, a through hole is opened through the center of the detection platform, the water pipe is fixedly connected to the bottom of the center of the detection platform, the water pipe is fixedly installed with the output end of an external high-pressure water pump, and also includes an upper clamping mechanism;

[0010] The upper clamping mechanism includes a bracket fixedly connected to the top surface of the detection platform, a circular frame fixedly connected at the center of the top of the bracket, an upper gear ring fixedly connected to the bottom surface of the circular frame, an upper fixing ring fixedly connected to the outer surface of the circular frame, an upper sliding rod slidingly connected to the interior of the upper fixing ring, the upper sliding rods are arranged in a circular array with the circular frame as the center, upper support springs are sleeved on the outer surfaces of the upper sliding rods, and an upper sealing ring is fixedly connected to the bottom of the upper sliding rods.

[0011] Preferably, the bottom surface of the upper gear ring is set as a continuous elliptical section with opposite directions, the top end of the upper slide rod is fixedly connected to the bottom surface of the upper fixing ring, and the bottom end of the upper slide rod is fixedly connected to the top surface of the upper sealing ring.

[0012] Preferably, it also includes an anti-splash mechanism;

[0013] The anti-splash mechanism includes guide grooves which are equidistantly arranged in an annular shape on the inner wall of the circular frame, and positioning blocks are slidably connected inside the guide grooves. A connecting rod is hinged on the side of the positioning block away from the inner wall of the circular frame, and a limiting block is fixedly installed on the end of the connecting rod away from the positioning block through a protrusion. A return spring is fixedly connected to one side of the connecting rod, and the end of the return spring away from the limiting block is fixedly connected to the wall of the guide groove.

[0014] Preferably, the initial position of the bottom of the limiting block is flush with the horizontal section of the bottom of the circular frame, and the limiting block is made of a transparent material.

[0015] Preferably, it also includes an anti-wrinkle mechanism;

[0016] The anti-wrinkle mechanism includes a fixed block fixedly connected to the surface of the detection platform in a circular shape and at equal intervals. The fixed block is fixedly connected to an electric push rod on one side close to the center of the detection platform, and the electric push rod is fixedly connected to a pneumatic clamp on one end away from the fixed block. The bottom of the pneumatic clamp is fixedly connected to a slider, and the upper surface of the detection platform is provided with track grooves in a circular shape and at equal intervals.

[0017] Preferably, the track groove is in an eight-shaped shape with one end having a smaller spacing toward the center of the detection platform, the sliders are all slidably connected in the track groove, and the surface of the track groove is set to a rough plane.

[0018] Preferably, it also includes a lower clamping mechanism;

[0019] The lower clamping mechanism includes a positioning ring fixedly installed on the surface of the water pipe, the positioning ring passes through and extends to the upper surface of one end inside the water pipe, and an electric-controlled telescopic rod is fixedly connected to the upper surface, the top output end of the electric-controlled telescopic rod is fixedly connected to a supporting frame, the top of the supporting frame is fixedly connected to a lower gear ring, the outer surface of the supporting frame is fixedly connected to a lower fixing ring, and a lower sliding rod is slidably connected to the lower fixing ring in a circular shape and equidistantly arranged inside the lower fixing ring, the outer surface of the lower sliding rod is sleeved with a lower supporting spring, and the top of the lower sliding rod is fixedly connected to a lower sealing ring.

[0020] Preferably, the bottom surface of the lower gear ring is configured as continuous elliptical sections in opposite directions.

[0021] According to the sampling detection structure for fabric finishing agents, a method for preparing a fabric finishing agent is proposed, which comprises a water repellent, a bridging agent, a silica sol, a long-acting antibacterial agent, a softener, a penetrant, a dispersant, an antistatic agent and water;

[0022] Wherein, the water repellent is a hydroxymethyl melamine derivative, and preferably 2,4,6-trimethylol melamine;

[0023] Wherein, the bridging agent is at least one of a melamine bridging agent and an aziridine bridging agent;

[0024] Among them, the average particle size of silica sol is 20-30nm;

[0025] Wherein, the long-acting antibacterial agent is a mixed product of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one, and the mass ratio of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one is (1-1.5):1;

[0026] The softener is selected from at least one of a non-cationic softener and a non-ionic softener;

[0027] The penetrant is at least one of a nonionic penetrant, an anionic penetrant, a compound penetrant, an amphoteric penetrant, and a cationic penetrant;

[0028] Wherein, the dispersant is at least one of anionic dispersants, cationic dispersants and nonionic dispersants;

[0029] Among them, water repellent 30-50g / L, bridging agent 15-20g / L, silica sol 100-300g / L, long-term antibacterial agent 50-80g / L, softener 5-8g / L, penetrant 6-8g / L, dispersant 10-15g / L, antistatic agent 1-2g / L.

[0030] Preferably, step 1: according to the formula, water repellent, bridging agent, silica sol, long-acting antibacterial agent, softener, penetrant, dispersant, and antistatic agent are added to the high-speed dispersing kettle in sequence, the speed of the high-speed dispersing kettle is 600-2000 rpm, the stirring time is 1-3 hours, and after stirring evenly, it is allowed to stand for 10-30 minutes;

[0031] Step 2: Add a certain amount of water to the mixed solution obtained in step 1, the ratio of the mixed solution to water is 1:1.5, and then continue to stir the high-speed dispersion kettle for 30 minutes to 1 hour, the speed of the high-speed dispersion kettle is 600-2000 rpm, and vacuum degassing is performed after uniform dispersion.

[0032] (III) Beneficial effects

[0033] Compared with the prior art, the present invention provides a sampling detection structure for fabric finishing agents, which has the following beneficial effects:

[0034] By setting up the anti-wrinkle mechanism, the surface of the fabric is flattened. The flat fabric can more accurately reflect the real performance of the fabric, improve the reliability and credibility of the test data, reduce data anomalies and errors caused by wrinkles, and reduce wrinkles to avoid pre-damage of the sample due to stress concentration during the clamping process, which affects the test results. At the same time, during the test process, reducing wrinkles can reduce the splashing of fragments caused by the bursting of the sample, reducing safety hazards.

[0035] By setting the track slide groove in an eight-shaped shape, the friction between the slider and the track slide groove will gradually increase during the movement, thereby affecting the moving speed of the pneumatic clamp driven by the electric push rod, preventing the pneumatic clamp from extending too quickly, quickly stretching the fabric fragments to be tested, and destroying the fabric fibers and the waterproof coating formed by the surface fabric finishing agent, thereby avoiding affecting the waterproof test results of the fabric finishing agent to be tested;

[0036] The upper sealing ring cooperates with the lower sealing ring to seal the outside of the fabric fragment to be tested, so as to prevent the fabric fragment to be tested from being unstable due to uneven clamping force during the testing process. In addition, the fabric fragment to be tested is placed in a closed environment, which helps to maintain the accuracy of the hydrostatic pressure test results and prevents the fabric fragment to be tested from being loosely clamped during the hydrostatic pressure test, resulting in water leakage and eventually water overflow, which affects the test results of the waterproofness of the fabric finishing agent.

[0037] By setting the elliptical arc surface that matches the bottom surface of the upper gear ring and the bottom surface of the lower gear ring, compared with the flat plane, the upper gear ring and the lower gear ring whose opposite surfaces are both set as continuous elliptical arc surfaces can increase the clamping area of ​​the surface of the fabric fragment to be tested, which helps to increase the clamping force and avoid the situation that the surface of the fabric fragment is out of the clamping when performing the hydrostatic pressure test, thereby affecting the test result;

[0038] The continuous elliptical arc surface clamping of the upper and lower gear rings can better disperse the pressure and avoid local stress concentration, thereby reducing the possibility of bursting of the fabric fragments to be tested. The elliptical transition is more streamlined and can more effectively disperse stress concentration and make stress distribution more uniform. By optimizing the shape, the rigidity of the local area can be increased while maintaining the streamline, so as to better withstand loads and impacts.

[0039] The limiting block will be quickly lifted upward by the impact force of the splashing fiber, and in the process, the return spring will be further stretched. Due to the ring array setting of the connecting rod and the limiting block, the multiple limiting blocks will gradually fit together and restrict each other during the upward movement, preventing the limiting blocks from continuing to move upward, and making the originally smaller plane of the limiting block form a larger plane, thereby blocking the splashing of the fiber and simultaneously blocking part of the water gushing out due to the rupture of the fabric fragments to be tested, thereby reducing the harm to the tester;

[0040] The plane formed by the mutual interference of several limiting blocks is located at the center of the circular frame. When the fabric fragments burst, the high-pressure water flow at the bottom of the fabric fragments will be quickly ejected. The plane can be used to block the water flow and disperse the direct injection pressure of the water flow, thereby reducing the injection distance of the ejected water flow. In the prior art, a shielding protective cover can be simultaneously installed on the top of the circular frame. In this case, the platform formed by the limiting blocks can reduce the direct impact of the ejected water flow on the protective cover, and prevent the protective cover from being washed away by the water flow, thereby reducing the safety hazards caused by the broken detection fabric to the detection environment and detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the anti-wrinkle mechanism of the present invention;

[0043] Figure 3 It is a schematic diagram of the structure of the upper clamping mechanism of the present invention;

[0044] Figure 4 This is a schematic diagram of the anti-splash mechanism structure of the present invention;

[0045] Figure 5 It is a schematic diagram of the cross-sectional structure of the circular frame of the present invention;

[0046] Figure 6 This is a schematic diagram of the internal structure of the water pipe of the present invention;

[0047] Figure 7 It is a schematic top view of the overall structure of the present invention;

[0048] Figure 8It is a schematic diagram of the connection relationship at the lower gear ring of the present invention;

[0049] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlargement in the middle;

[0050] Fig.10 It is a schematic diagram of the connection relationship of the relevant structures of the water pipe of the present invention.

[0051] In the figure: 11, detection platform; 12, water pipe;

[0052] 21. Bracket; 22. Circular frame; 23. Upper gear ring; 24. Upper fixing ring; 25. Upper slide bar; 26. Upper support spring; 27. Upper sealing ring;

[0053] 31. Guide groove; 32. Positioning block; 33. Connecting rod; 34. Limiting block; 35. Rotation spring;

[0054] 41. Fixed block; 42. Electric push rod; 43. Pneumatic clamp; 44. Slider; 45. Track slide;

[0055] 51. Positioning ring; 52. Electric telescopic rod; 53. Support frame; 54. Lower gear ring; 55. Lower fixing ring; 56. Lower sliding rod; 57. Lower supporting spring; 58. Lower sealing ring. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Embodiments of the present invention

[0058] Embodiment 1

[0059] See also Figures 1 to 10 , a sampling and testing structure for fabric finishing agents, including a testing platform 11 and a water pipe 12, a through hole is opened at the center of the testing platform 11, the water pipe 12 is fixedly connected to the bottom of the center of the testing platform 11, the water pipe 12 is fixedly installed with the output end of the external high-pressure water pump, and also includes an upper clamping mechanism;

[0060] The upper clamping mechanism includes a bracket 21 fixedly connected to the top surface of the detection platform 11, a circular frame 22 is fixedly connected at the center of the top of the bracket 21, an upper gear ring 23 is fixedly connected to the bottom surface of the circular frame 22, an upper fixing ring 24 is fixedly connected to the outer surface of the circular frame 22, an upper sliding rod 25 is slidably connected to the interior of the upper fixing ring 24, a plurality of upper sliding rods 25 are provided, and the upper sliding rods 25 are arranged in a circular array with the circular frame 22 as the center, the outer surfaces of the upper sliding rods 25 are all sleeved with upper support springs 26, and the bottoms of the plurality of upper sliding rods 25 are commonly fixedly connected to an upper sealing ring 27.

[0061] The bottom surface of the upper gear ring 23 is set as a continuous and opposite elliptical section, the top end of the upper slide rod 25 is fixedly connected to the bottom surface of the upper fixing ring 24, and the bottom end of the upper slide rod 25 is fixedly connected to the top surface of the upper sealing ring 27.

[0062] Among them, the position of the upper gear ring 23 is fixed, and it is used to clamp the fabric to be tested. A rubber sleeve that fits the shape of the upper gear ring 23 is provided on the elliptical arc surface at the bottom of the upper gear ring 23, and the shape of the rubber sleeve is the same as the shape of the bottom of the upper gear ring 23, which can buffer the direct pressure on the fabric, thereby reducing stress concentration. In addition, the elliptical arc surface at the bottom can increase the contact area with the fabric, reduce the pressure per unit area, and help alleviate stress concentration.

[0063] Also includes an anti-splash mechanism;

[0064] The anti-splash mechanism includes a guide groove 31 which is equidistantly arranged in an annular shape on the inner wall of the circular frame 22. A positioning block 32 is slidably connected inside the guide groove 31. A connecting rod 33 is hinged on the side of the positioning block 32 away from the inner wall of the circular frame 22. A limiting block 34 is fixedly installed on the end of the connecting rod 33 away from the positioning block 32 through a protrusion. A return spring 35 is fixedly connected to one side of the connecting rod 33. The end of the return spring 35 away from the limiting block 34 is fixedly connected to the groove wall of the guide groove 31.

[0065] The initial position of the bottom of the limiting block 34 is flush with the horizontal section of the bottom of the circular frame 22 , and the limiting block 34 is made of a transparent material.

[0066] The limiting block 34 is used to fit the upper surface of the fabric and prevent the fabric from breaking due to excessive pressure, which eventually results in splashing objects. When the limiting block 34 made of transparent material fits the surface of the fabric, it does not affect the inspector's direct observation of the water permeability of the fabric surface.

[0067] Also included is an anti-crease mechanism;

[0068] The anti-wrinkle mechanism includes a fixed block 41 fixedly connected to the surface of the detection platform 11 in a circular shape and at equal intervals. The fixed block 41 is fixedly connected to an electric push rod 42 on one side close to the center of the detection platform 11, and the electric push rod 42 is fixedly connected to an end of the electric push rod 42 away from the fixed block 41. The bottom surface of the pneumatic clamp 43 is fixedly connected to a slider 44, and the upper surface of the detection platform 11 is provided with track grooves 45 in a circular shape and at equal intervals.

[0069] Among them, the shape of the track groove 45 is an eight-shaped shape and the end with a smaller spacing is facing the center of the detection platform 11. The sliders 44 are all slidably connected in the track groove 45. The surface of the track groove 45 is set to a rough plane. The slider 44 is made of deformable metal, and the initial position of the slider 44 is higher than the upper surface of the detection platform 11.

[0070] Among them, the anti-wrinkle mechanism in a circular array is used to clamp the edges of the cut fabric to be tested and stretch it out. Generally, the fabric to be tested is cut into a rectangle and the edges of the fabric to be tested are stretched out, which is beneficial to reduce the generation of wrinkles when the fabric is clamped.

[0071] Also included is a lower clamping mechanism;

[0072] The lower clamping mechanism includes a positioning ring 51 fixedly installed on the surface of the water pipe 12. The positioning ring 51 passes through and extends to the upper surface of one end of the water pipe 12, and is fixedly connected to an electric-controlled telescopic rod 52. The top output end of the electric-controlled telescopic rod 52 is fixedly connected to a support frame 53. The top of the support frame 53 is fixedly connected to a lower gear ring 54. The outer surface of the support frame 53 is fixedly connected to a lower fixed ring 55. The lower fixed ring 55 is slidably connected with lower sliding rods 56 that are equidistantly arranged in a ring shape inside the lower fixed ring 55. The outer surfaces of the lower sliding rods 56 are sleeved with lower support springs 57, and the tops of the lower sliding rods 56 are fixedly connected to a lower sealing ring 58.

[0073] The bottom surface of the lower gear ring 54 is configured as continuous elliptical sections with opposite directions.

[0074] The lower gear ring 54 is in conformity with the upper gear ring 23, and the two cooperate to clamp and fix the fabric to be tested. A rubber sleeve that fits the shape of the lower gear ring 54 is provided at the elliptical arc surface at the bottom of the lower gear ring 54, and the shape of the rubber sleeve is the same as the shape of the bottom of the lower gear ring 54.

[0075] Embodiment 2

[0076] A method for preparing a fabric finishing agent, comprising a water repellent, a bridging agent, a silica sol, a long-acting antibacterial agent, a softener, a penetrant, a dispersant, an antistatic agent and water;

[0077] Wherein, the water repellent is 2,4,6-trimethylolmelamine;

[0078] Wherein, the bridging agent is a melamine bridging agent;

[0079] Among them, the average particle size of silica sol is 20nm;

[0080] Wherein, the long-acting antibacterial agent is a mixed product of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one, and the mass ratio of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one is (1-1.5):1;

[0081] Among them, the softener is a non-cationic softener;

[0082] Wherein, the penetrant is a non-ionic penetrant;

[0083] Wherein, the dispersant is an anionic dispersant.

[0084] Among them, water repellent 30g / L, bridging agent 15g / L, silica sol 100g / L, long-term antibacterial agent 50g / L, softener 5g / L, penetrant 6g / L, dispersant 10g / L, antistatic agent 1g / L.

[0085] Preferably, step 1: according to the formula, water repellent, bridging agent, silica sol, long-acting antibacterial agent, softener, penetrant, dispersant, and antistatic agent are added to the high-speed dispersion kettle in sequence, the speed of the high-speed dispersion kettle is 600 rpm, the stirring time is 1 hour, and the mixture is stirred evenly and then allowed to stand for 10 minutes;

[0086] Step 2: Add a certain amount of water to the mixed solution obtained in step 1, the ratio of the mixed solution to water is 1:1.5, and then continue to stir the high-speed dispersion kettle for 30 minutes at a speed of 600 rpm. After uniform dispersion, vacuum degassing is performed.

[0087] The working process and principle of the overall content of the above embodiment are as follows:

[0088] Initial processing:

[0089] The fabric finishing agent to be tested is sprayed evenly on the experimental fabric, and after the fabric finishing agent is completely formed, a rectangular fabric fragment is sampled and cut out at any position on the fabric surface, and the fabric fragment is used for sampling and testing the waterproofness of the fabric finishing agent;

[0090] For wrinkle-proofing of fabric fragments to be tested:

[0091] The inspector passes one end of the rectangular fabric fragment to be inspected under the upper sealing ring 25 and places the center of the rectangular fabric fragment to be inspected at the center of the inspection platform 11. At this time, the rectangular fabric fragment to be inspected is located between the upper sealing ring 25 and the lower sealing ring 58. Then, the staff places the four edges of the rectangular fabric fragment to be inspected in the pneumatic clamp 43, and drives the pneumatic clamp 43 to clamp the fabric fragment to be inspected through a controller electrically connected to the starting clamp. Then, the inspector starts the electric push rod 42 connected to the controller to cause the electric push rod 42 to retract inward, and gradually pulls the fabric fragment to be inspected to four sides to prop it up, so that its top surface is horizontal, thereby reducing wrinkles on the surface of the fabric to be inspected.

[0092] In the above process, since a slider 44 is provided at the bottom of the pneumatic clamp 43, and the slider 44 is slidably connected to the inside of the track slot 45, the track slot 45 is in an eight-shaped shape with a smaller spacing and one end facing the center of the detection platform 11, and the surface of the track slot 45 is set to a rough plane, and the farther the surface of the track slot 45 is from the center of the detection platform 11, the rougher it is, and the slider 44 is made of a deformable metal, and the initial position of the slider 44 is higher than the upper surface of the detection platform 11. The slider 44 will return to its original state after losing the force of the track slot 45, so as the pneumatic clamp 43 drives the slider 44 to gradually move away from the center of the detection platform 11, the slider 44 will return to its original state. At the center of the detection platform 11, the slider 44 will be gradually stretched open by the track slot 45 during the movement, and the slider 44 will generate a reverse force to resist the deformation caused by the track slot 45, further forming the clamping force of the slider 44 on the track slot 45. At the same time, the friction between the slider 44 and the track slot 45 will gradually increase, thereby affecting the moving speed of the pneumatic clamp 43 driven by the electric push rod 42, preventing the pneumatic clamp 43 from stretching too fast, quickly stretching the fabric fragments to be tested, and destroying the fabric fibers and the waterproof coating formed by the surface fabric finishing agent, thereby affecting the waterproof test result of the fabric finishing agent to be tested;

[0093] Flat fabrics can more accurately reflect the true performance of fabrics, improve the reliability and credibility of test data, and reduce data anomalies and errors caused by wrinkles. Reducing wrinkles can avoid pre-damage of the sample due to stress concentration during the clamping process, which affects the test results. At the same time, during the test process, reducing wrinkles can reduce the splashing of fragments caused by sample bursting and reduce safety hazards.

[0094] In the above process, the horizontal position of the upper sealing ring 27 in the initial state is lower than the position of the pneumatic clamp 43. In the process of anti-wrinkle treatment of the fabric fragment to be detected, the upper sealing ring 27 arranged outside the upper gear ring 23 will contact the surface of the fabric fragment to be detected, and when the surface of the fabric fragment is gradually flattened, the upper sealing ring 27 is gradually supported in an upward direction, and the upper sliding rod 25 fixedly connected to the upper sealing ring 27 is prompted to move upward, and the upper support spring 26 is compressed during the movement, so that the upper gear ring 23 whose bottom surface is located above the bottom surface of the upper sealing ring 27 in the initial position is exposed, and the rubber sleeve whose shape and size are both adapted to the bottom surface of the upper gear ring 23 contacts the upper surface of the fabric fragment to be detected;

[0095] For clamping and fixing of fabric fragments to be tested:

[0096] After the fabric fragment to be inspected is clamped by the pneumatic clamp 43, the fabric fragment to be inspected is now directly below the upper gear ring 23. Then, the staff drives the electrically controlled telescopic rod 52 electrically connected thereto to extend through the external controller, and the support frame 53 fixedly connected to the output end of the electrically controlled telescopic rod 52 moves horizontally upward inside the water pipe 12, thereby causing the lower gear ring 54, the lower fixing ring 55, the lower sealing ring 58 and other parts arranged on the support frame 53 to move upward synchronously;

[0097] At this time, the lower sealing ring 58 arranged outside the lower gear ring 54 will first contact the surface of the fabric fragment to be detected, and under the action of the tension of the lower surface of the fabric fragment to be detected, it will resist the lower sealing ring 58, causing it to move downward, and drive the lower sliding rod 56 connected to the lower sealing ring 58 to move downward inside the lower fixing ring 55 and gradually compress the lower supporting spring 57, until the rubber ring arranged on the surface of the lower gear ring 54 contacts the lower surface of the fabric fragment to be detected, and finally fits with the bottom of the upper gear ring 23, so that the lower gear ring 54 and the upper gear ring 23 are meshed with each other, fixing the surface of the fabric fragment to be detected;

[0098] In the above process, the upper sealing ring 27 cooperates with the lower sealing ring 58 to seal the outside of the fabric fragment to be tested, so as to prevent the fabric fragment to be tested from being unstable due to uneven clamping force during the testing process. In addition, the fabric fragment to be tested is placed in a closed environment, which helps to maintain the accuracy of the hydrostatic pressure test results and prevents the fabric fragment to be tested from being loosely clamped during the hydrostatic pressure test, resulting in water leakage and eventually water overflow, which affects the test results of the waterproofness of the fabric finishing agent.

[0099] In addition, by setting the elliptical arc surface that matches the bottom surface of the upper gear ring 23 and the bottom surface of the lower gear ring 54, compared with a flat plane, the upper gear ring 23 and the lower gear ring 54, whose opposite surfaces are both set as continuous elliptical arc surfaces, increase the clamping area of ​​the surface of the fabric fragment to be tested, which helps to increase the clamping force and avoid the situation in which the surface of the fabric fragment is out of the clamping during the hydrostatic pressure test and affects the test result;

[0100] In addition, the use of continuous elliptical arc clamping can better disperse the pressure and avoid local stress concentration, thereby reducing the possibility of bursting of the fabric fragments to be tested. The elliptical transition is more streamlined and can more effectively disperse stress concentration and make stress distribution more uniform. By optimizing the shape, the rigidity of the local area can be increased while maintaining the streamline, so as to better withstand loads and impacts.

[0101] Anti-splash treatment for fabric fragments to be tested:

[0102] After the above process, water is introduced through the water pipe 12 connected to the external water pump, and the water-proof coating formed by the fabric finishing agent is subjected to a hydrostatic pressure test by pressurizing the water flow;

[0103] As the water pressure gradually increases, a bulge gradually forms on the upper surface of the fabric fragment to be detected, and water seepage occurs as the water pressure gradually increases. At this time, the limiting block 34, which is initially in contact with the fabric surface, is lifted up as the surface of the fabric fragment expands. The lifting of the limiting block 34 drives the connecting rod 33 to rotate around the connection point between the limiting block 34 and the positioning block 32, and stretches the return spring 35.

[0104] As the water pressure gradually increases, the fiber strength of the fabric fragments may be unable to support such a large water pressure. When the fiber strength reaches a critical value, the fabric fragments will crack, and even some fibers will splash. At this time, the limiting block 34 disposed above the fabric fragments to be detected will stop the splashing fibers and prevent them from continuing to splash.

[0105] During the above process, the limiting block 34 will be quickly lifted upward by the impact force of the splashing fibers, and the return spring 35 will be further stretched in the process, and the limiting block 34 will be further lifted and drive the connecting rod 33 to rotate with its connection point with the positioning block 32 as a fulcrum. Due to the annular array arrangement of the connecting rod 33 and the limiting block 34, the plurality of limiting blocks 34 will approach and gradually fit toward the center of the circular frame 22 during the upward movement, and restrict each other to prevent the limiting block 34 from continuing to move upward, and make the originally smaller plane of the limiting block 34 form a larger plane, so as to block the splashing of fibers and simultaneously block part of the fabric fragments to be detected from being broken. The water gushing out due to the bursting can be blocked, thereby reducing the harm to the inspectors. At the same time, the plane formed by the mutual collision of several limiting blocks 34 is located at the center of the circular frame 22. When the fabric fragments burst, the high-pressure water flow located at the bottom of the fabric fragments will be quickly ejected. The plane can be used to block the water flow and disperse the direct injection pressure of the water flow, thereby reducing the injection distance of the ejected water flow. In the prior art, a shielding protective cover can be simultaneously installed on the top of the circular frame 22. In this case, the covering surface formed by the limiting blocks 34 can reduce the direct impact of the ejected water flow on the protective cover, thereby preventing the protective cover from being washed away by the water flow.

[0106] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0107] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling detection structure for a fabric finishing agent, comprising a detection platform (11) and a water pipe (12), wherein a through hole is provided at the center of the detection platform (11), the water pipe (12) is fixedly connected to the bottom of the center of the detection platform (11), and the water pipe (12) is fixedly installed with an output end of an external high-pressure water pump, characterized in that: Also included is an upper clamping mechanism; The upper clamping mechanism comprises a bracket (21) fixedly connected to the top surface of the detection platform (11), a circular frame (22) fixedly connected at the center of the top of the bracket (21), an upper gear ring (23) fixedly connected to the bottom surface of the circular frame (22), an upper fixing ring (24) fixedly connected to the outer surface of the circular frame (22), an upper slide rod (25) slidably connected to the interior of the upper fixing ring (24), the upper slide rod (25) is arranged in a circular array with the circular frame (22) as the center, the outer surface of the upper slide rod (25) is sleeved with an upper support spring (26), and the bottom of the upper slide rod (25) is fixedly connected to an upper sealing ring (27).

2. The sampling and detection structure for fabric finishing agents according to claim 1, characterized in that: The bottom surface of the upper gear ring (23) is configured as a continuous elliptical section with opposite directions, the top end of the upper slide bar (25) is fixedly connected to the bottom surface of the upper fixing ring (24), and the bottom end of the upper slide bar (25) is fixedly connected to the top surface of the upper sealing ring (27).

3. The sampling and detection structure for fabric finishing agents according to claim 1, characterized in that: Also includes an anti-splash mechanism; The anti-splash mechanism comprises a guide groove (31) which is equidistantly arranged in an annular shape on the inner wall of the circular frame (22); a positioning block (32) is slidably connected inside the guide groove (31); a connecting rod (33) is hingedly connected to the side of the positioning block (32) away from the inner wall of the circular frame (22); a limiting block (34) is fixedly installed on one end of the connecting rod (33) away from the positioning block (32) through a protrusion; a rotary spring (35) is fixedly connected to one side of the connecting rod (33); and an end of the rotary spring (35) away from the limiting block (34) is fixedly connected to the groove wall of the guide groove (31).

4. The sampling and detection structure for fabric finishing agents according to claim 3, characterized in that: The initial position of the bottom of the limiting block (34) is flush with the horizontal section of the bottom of the circular frame (22), and the limiting block (34) is made of a transparent material.

5. The sampling and detection structure for fabric finishing agents according to claim 1, characterized in that: Also included is an anti-crease mechanism; The anti-wrinkle mechanism comprises a fixed block (41) fixedly connected to the surface of the detection platform (11) in an annular shape and at equal intervals, an electric push rod (42) is fixedly connected to one side of the fixed block (41) close to the center of the detection platform (11), an end of the electric push rod (42) away from the fixed block (41) is fixedly connected to a pneumatic clamp (43), a slider (44) is fixedly connected to the bottom surface of the pneumatic clamp (43), and a track slide groove (45) is opened in an annular shape and at equal intervals on the upper surface of the detection platform (11).

6. The sampling and detection structure for fabric finishing agents according to claim 5, characterized in that: The track slide groove (45) is in an eight-shaped shape with one end having a smaller spacing toward the center of the detection platform (11), and the sliders (44) are all slidably connected in the track slide groove (45), and the surface of the track slide groove (45) is set to a rough plane.

7. The sampling and detection structure for fabric finishing agents according to claim 1, characterized in that: Also included is a lower clamping mechanism; The lower clamping mechanism comprises a positioning ring (51) fixedly mounted on the surface of the water pipe (12); the positioning ring (51) penetrates and extends to the upper surface of one end of the water pipe (12), and is fixedly connected to an electric control telescopic rod (52); the top output end of the electric control telescopic rod (52) is fixedly connected to a support frame (53); the top of the support frame (53) is fixedly connected to a lower gear ring (54); the outer surface of the support frame (53) is fixedly connected to a lower fixing ring (55); the lower fixing ring (55) is equidistantly arranged in an annular shape inside the lower fixing ring (55) and penetrates and is slidably connected thereto; the outer surface of the lower sliding rod (56) is sleeved with a lower support spring (57); the top of the lower sliding rod (56) is fixedly connected to a lower sealing ring (58).

8. The sampling and detection structure for fabric finishing agents according to claim 7, characterized in that: The bottom surface of the lower gear ring (54) is configured as continuous elliptical sections with opposite directions.

9. According to the sampling detection structure for fabric finishing agent according to claims 1-8, a method for preparing the fabric finishing agent is provided, characterized in that: Contains water repellent, bridging agent, silica sol, long-lasting antibacterial agent, softener, penetrant, dispersant, antistatic agent and water; Wherein, the water repellent is a hydroxymethyl melamine derivative, and preferably 2,4,6-trimethylol melamine; Wherein, the bridging agent is at least one of a melamine bridging agent and an aziridine bridging agent; Among them, the average particle size of silica sol is 20-30nm; Wherein, the long-acting antibacterial agent is a mixed product of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one, and the mass ratio of [(phenylmethoxy)methoxy]methanol and 1,2-benzisothiazolin-3-one is (1-1.5):1; The softener is selected from at least one of a non-cationic softener and a non-ionic softener; Wherein, the penetrant is at least one of a nonionic penetrant, an anionic penetrant, a compound penetrant, and an amphoteric and cationic penetrant; Wherein, the dispersant is at least one of anionic dispersants, cationic dispersants and nonionic dispersants; Among them, water repellent 30-50g / L, bridging agent 15-20g / L, silica sol 100-300g / L, long-term antibacterial agent 50-80g / L, softener 5-8g / L, penetrant 6-8g / L, dispersant 10-15g / L, antistatic agent 1-2g / L.

10. The method for preparing a fabric finishing agent according to claim 9, characterized in that: The following steps are involved: Step 1: Add water repellent, bridging agent, silica sol, long-acting antibacterial agent, softener, penetrant, dispersant and antistatic agent into the high-speed dispersing kettle in sequence according to the formula. The speed of the high-speed dispersing kettle is 600-2000 rpm. The stirring time is 1-3 hours. After stirring evenly, let it stand for 10-30 minutes. Step 2: Add a certain amount of water to the mixed solution obtained in step 1, the ratio of the mixed solution to water is 1:1.5, and then continue to stir the high-speed dispersion kettle for 30 minutes to 1 hour, the speed of the high-speed dispersion kettle is 600-2000 rpm, and vacuum degassing is performed after uniform dispersion.

Images