Textile printing firmness testing device and method

Abstract

The invention belongs to the technical field of textile performance testing, and discloses a textile printing firmness testing device and method. The textile printing firmness testing device comprises a rolling piece and a limiting piece. The rolling part comprises a rolling part and a handheld part, at least part of the peripheral surface of the rolling part forms a rolling surface, the rolling surface extends around a first axis in a circular arc shape, and the handheld part is connected with the rolling part and protrudes out of the two ends of the rolling part in the direction of the first axis; the limiting piece comprises two limiting parts, the limiting parts are arranged on the two sides of the rolling part in the radial direction, and the lowermost edges of the limiting parts are higher than the lowermost edges of the rolling part. According to the textile printing firmness testing method, the textile printing firmness testing device is adopted, the rolling piece with the bonding layer is used for rolling printing, the printing falling condition is observed, the printing firmness is evaluated, the testing process is simplified, the testing period is shortened, and the testing efficiency is improved. And the limiting part limits the rolling part to roll in the printing area, so that the test accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile performance testing, and in particular to a textile printing fastness testing device and method. Background Art

[0002] Printing is usually set on textiles. Printing fastness refers to the durability of printing pigments on fabrics, which will not fade, break or fall off during washing. By testing the fastness of printing, the fixation degree and durability of printing pigments can be evaluated, providing reliable data support for textile printing processing. At present, most tests on printing fastness use the test method of washing, drying and inspection. During the washing process, the water flow impacts the printing and exerts external force on the printing, causing the printing to fall off. The textile is dried, and the shedding of the printing is checked to evaluate the fastness of the printing. This method has a complex operation process, a long test cycle, and low test efficiency. For printing with a smaller area, the printing may be covered by the textile during the washing process, so that the impact of the water flow on the printing is small, resulting in low accuracy of the test results. Summary of the invention

[0003] The purpose of the present invention is to provide a textile printing fastness testing device and method, which are used to test the printing fastness of textiles, simplify the testing process, shorten the testing cycle, and improve the testing accuracy.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A textile printing fastness testing device, comprising:

[0006] The rolling part comprises a rolling portion and a hand-held portion, wherein at least a portion of the outer circumference of the rolling portion forms a rolling surface, and the rolling surface extends in an arc shape around a first axis, and the hand-held portion is connected to the rolling portion and protrudes from two ends of the rolling portion along the first axis direction;

[0007] A limiting member is connected to the rolling part, and the limiting member includes two limiting parts. The limiting parts are arranged on both sides of the rolling part along the radial direction. The limiting parts extend downwardly inclined relative to the rolling part, and the lowermost edge of the limiting part is higher than the lowermost edge of the rolling part.

[0008] In the above-mentioned textile printing fastness testing device, the limiting member also includes a connecting portion, the limiting portion is connected to the connecting portion, the top of the rolling portion forms a horizontally extending mounting surface, and the connecting portion is fixedly connected to the mounting surface.

[0009] In the above-mentioned textile printing fastness testing device, the limiting part is rotatably connected to the connecting part and locked by an angle adjustment component, and the angle of the limiting part relative to the connecting part can be adjusted to change the inclination angle of the limiting part.

[0010] The above-mentioned textile printing fastness testing device, wherein the angle adjustment assembly includes a first screw, a first nut and an elastic member, the first screw is passed through the limiting portion and the connecting portion and protrudes from both sides of the connecting portion along the first axis direction, the limiting portion can rotate around the first screw, the elastic member is sleeved on the first screw and clamped between the limiting portion and the connecting portion, and the first nut is threadedly connected to the first screw.

[0011] In the above-mentioned textile printing fastness testing device, the limiting part is a limiting plate, and the angle between the plane where the limiting plate is located and the installation surface is 0-90 degrees.

[0012] In the above-mentioned textile printing fastness testing device, a height adjustment component is arranged between the connecting part and the rolling part, and the height adjustment component can change the distance between the connecting part and the installation surface.

[0013] The above-mentioned textile printing fastness testing device, wherein the height adjustment component includes a second screw and two second nuts, the second screw is passed through the connecting part and is threadedly connected to the rolling part, the two second nuts are threadedly connected to the second screw, and the connecting part is clamped between the two second nuts.

[0014] In the above-mentioned textile printing fastness testing device, the rolling member and / or the limiting member is provided with a counterweight block, and the counterweight block is detachable.

[0015] In the above textile printing fastness testing device, the hand-held part is fixedly connected to the rolling part; or the hand-held part is connected to the rolling part via a bearing.

[0016] A method for testing the fastness of textile printing, using the above-mentioned textile printing fastness testing device, comprising:

[0017] Step 1: Spread out the test sample on a test platform, the test sample including the fabric and the print set on the fabric;

[0018] Step 2: Lay an adhesive layer on the rolled surface of the rolled part, and both sides of the adhesive layer are sticky;

[0019] Step 3: The operator holds the handheld part and places the rolling part on the printed fabric. The handheld part is operated to make the rolling part reciprocate around the first axis. The limiting part rotates with the rolling part until it contacts the fabric, limiting the rolling part from continuing to roll. This cycle is repeated so that the rolling part rolls in the printed fabric area.

[0020] During the reciprocating rolling process of the rolling part, the adhesive layer repeatedly adheres to and separates from the printing, and the adhesive layer pulls the printing away from the fabric during the process of separating from the printing.

[0021] When the rolling part reciprocates to reach the first set number of times, the rolling is stopped and the shedding of the printing is observed;

[0022] Step 4: Replace rollers of different qualities and repeat steps 2 and 3 to evaluate the firmness of the print.

[0023] Beneficial effects of the present invention: The present invention provides a textile printing fastness testing device. When in use, the test sample is flattened and laid on the test platform, and an adhesive layer is laid on the rolling surface of the rolling part. The operator holds the handheld part to make the rolling part roll back and forth on the printing surface around the first axis for a first set number of times, observes the printing shedding situation, and then evaluates the fastness of the printing. This testing method simplifies the testing process, shortens the testing cycle, and improves the testing efficiency. The limiting part can limit the rolling range of the rolling part. When the rolling part rolls back and forth around the first axis, the limiting part rotates with the rolling part until it abuts against the test sample, limiting the rolling part from continuing to roll; such a cycle causes the rolling part to roll in the printing area, ensuring that the rolling part fully acts on the printing, thereby improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural schematic diagram of a textile printing fastness testing device provided in Embodiment 1 of the present invention;

[0025] Figure 2 is a schematic structural diagram of a rolling part provided in Embodiment 1 of the present invention;

[0026] Figure 3 is a schematic structural diagram of a position-limiting member provided in Embodiment 1 of the present invention;

[0027] Figure 4 This is a first schematic diagram of an angle adjustment component provided between a limiting portion and a connecting portion provided in a second embodiment of the present invention;

[0028] Figure 5 is a second schematic diagram of an angle adjustment component provided between the limiting portion and the connecting portion provided in the second embodiment of the present invention;

[0029] Figure 6 is a third schematic diagram of an angle adjustment component provided between the limiting portion and the connecting portion provided in the second embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of a height adjustment component provided between the connecting portion and the rolling portion provided in the third embodiment of the present invention.

[0031] In the figure:

[0032] 1. rolling part; 11. rolling part; 111. rolling surface; 112. mounting surface; 12. hand-held part; 13. bearing;

[0033] 2. Limiting member; 21. Limiting portion; 22. Connecting portion; 221. First side surface; 222. Second side surface;

[0034] 3. Angle adjustment assembly; 31. First screw rod; 32. First nut; 33. Elastic member;

[0035] 4. Height adjustment assembly; 41. Second screw rod; 42. Second nut. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] Printing is usually set on textiles. Printing fastness refers to the durability of printing pigments on fabrics, which will not fade, break or fall off during washing. By testing the fastness of printing, the fixation degree and durability of printing pigments can be evaluated, providing reliable data support for textile printing processing. At present, most tests on printing fastness use the test method of washing, drying and inspection. During the washing process, the water flow impacts the printing and exerts external force on the printing, causing the printing to fall off. The textile is dried, and the shedding of the printing is checked to evaluate the fastness of the printing. This method has a complex operation process, a long test cycle, and low test efficiency. For printing with a smaller area, the printing may be covered by the textile during the washing process, so that the impact of the water flow on the printing is small, resulting in low accuracy of the test results.

[0041] In order to solve the above problems, the present invention provides a textile printing fastness testing device, which is used to test the fastness of printing, simplifies the testing process, shortens the testing cycle, and improves the testing efficiency and testing accuracy.

[0042] Embodiment 1

[0043] See also Figures 1 to 3 The textile printing fastness testing device comprises a rolling member 1 and a limiting member 2. The rolling member 1 comprises a rolling portion 11 and a hand-held portion 12, at least part of the outer peripheral surface of the rolling portion 11 forms a rolling surface 111, the rolling surface 111 extends in an arc shape around the first axis, the hand-held portion 12 is connected to the rolling portion 11 and protrudes from the left and right ends of the rolling portion 11 along the first axis direction; the limiting member 2 is connected to the rolling portion 11, the limiting member 2 comprises two limiting portions 21, both sides of the rolling portion 11 along the radial direction are provided with the limiting portions 21, the limiting portions 21 extend downwardly obliquely relative to the rolling portion 11, and the lowermost edge of the limiting portion 21 is higher than the lowermost edge of the rolling portion 11.

[0044] When in use, the test sample is flattened and laid on the test platform, and an adhesive layer is laid on the rolling surface 111 of the rolling member 1. The operator holds the handheld portion 12 to make the rolling portion 11 roll back and forth on the printed surface for a first set number of times around the first axis, observes the shedding of the printed print, and then evaluates the firmness of the printed print. This test method simplifies the test process, shortens the test cycle, and improves the test efficiency. The limiting portion 21 can limit the rolling range of the rolling portion 11. When the rolling portion 11 rolls back and forth, the limiting portion 21 rotates with the rolling portion 11 until it abuts against the test sample, limiting the rolling portion 11 from continuing to roll. This cycle causes the rolling portion 11 to roll in the printed area, ensuring that the rolling portion 11 fully acts on the printed print, thereby improving the test accuracy.

[0045] The front-rear, top-bottom, and left-right directions are defined with reference to the rolling portion 11. Figure 1The rolling surface 111 extends in an arc shape around the first axis, and the first axis extends in the left-right direction, so that the handheld rolling member 1 can roll on the printed print. The rolling portion 11 is provided with a limiting portion 21 on both sides of the radial direction, that is, the front and rear sides of the rolling portion 11 are provided with a limiting portion 21, and the limiting portion 21 extends downwardly and tilted relative to the rolling portion 11. The limiting portion 21 located on the front side of the rolling portion 11 is tilted forward and downward relative to the rolling portion 11, and the limiting portion 21 located on the rear side of the rolling portion 11 is tilted forward and downward relative to the rolling portion 11, so as to ensure that the limiting portion 21 contacts the fabric where the printed print is when the rolling portion 11 rolls forward and backward, thereby limiting the rolling portion 11 from rolling in the printed print area. The lowermost edge of the limiting portion 21 is higher than the lowermost edge of the rolling portion 11, so as to ensure that the rolling portion 11 can roll.

[0046] The rolling surface 111 extends in an arc shape around the first axis, and the central angle corresponding to the rolling surface 111 can be 180°, or less than 180° or greater than 180°, as long as the rolling surface 111 has an arc that can be rolled and printed. When the central angle corresponding to the rolling surface 111 is 180°, the rolling portion 11 is a semi-cylinder, which has a simple structure and is easy to process. The limiting portion 21 can be plate-shaped or rod-shaped, as long as the limiting portion 21 extends downwardly with respect to the rolling portion 11 and the lowermost edge of the limiting portion 21 is higher than the lowermost edge of the rolling portion 11.

[0047] The limiting part 21 can be directly connected to the rolling part 11, or indirectly connected to the rolling part 11. When the limiting part 21 is directly connected to the rolling part 11, the limiting part 21 can be plugged into the rolling part 11, or connected to the rolling part 11 by bolts. Specifically, a buckle is provided at one end of the limiting part 21, and the rolling part 11 is provided with a groove, and the buckle can be inserted into the groove and engaged with the groove. It is easy to process and disassemble.

[0048] In this embodiment, the limiting member 2 also includes a connecting portion 22, the limiting portion 21 is connected to the connecting portion 22, and the connecting portion 22 is connected to the rolling portion 11. By setting all the limiting portions 21 on the connecting portion 22, and then connecting the connecting portion 22 to the rolling portion 11, installation and disassembly are facilitated. A horizontally extending mounting surface 112 is formed on the top of the rolling portion 11, and the connecting portion 22 is fixedly connected to the mounting surface 112. The horizontally extending mounting surface 112 can provide better support for the connecting portion 22 and facilitate the positioning and assembly of the connecting portion 22. The mounting surface 112 is a rectangular plane of a semi-cylinder.

[0049] The connection part 22 and the rolling part 11 can be connected by snapping or by bolts. For example, the connection part 22 is provided with a plurality of through holes at intervals, and the mounting surface 112 is provided with threaded holes at corresponding positions. When connecting, the bolts are passed through the through holes and the lower ends of the bolts are aligned with the threaded holes, and the bolts are tightened to fix the connection part 22 and the mounting surface 112; when disassembling, the bolts are removed to remove the connection part 22 from the mounting surface 112.

[0050] The connecting portion 22 may be plate-shaped or rod-shaped. Exemplarily, the connecting portion 22 is plate-shaped, which facilitates the disassembly and assembly of the connecting portion 22 and the limiting portion 21 .

[0051] In this embodiment, the limiting portion 21 is fixedly connected to the connecting portion 22. The limiting portion 21 extends downwardly at a fixed angle relative to the rolling portion 11. The limiting portion 21 is a limiting plate, and the angle between the plane where the limiting plate is located and the mounting surface 112 is 0-90 degrees, for example, 0°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80° or 90°.

[0052] In order to ensure that the rolling member 1 can roll on prints of different areas, a plurality of limit members 2 at different angles can be set. The limit members 2 at different angles can enable the rolling member 1 to have different rolling ranges. The limit members 2 are detachably connected to the rolling member 1. By replacing the limit members 2 at different angles, the rolling range of the rolling member 1 can be adjusted, so that the textile printing fastness testing device is suitable for prints of different areas, thereby improving the accuracy of the test results; at the same time, by setting the limit members 2 and the rolling member 1 in a detachable connection mode, it is convenient for the operator to replace the limit members 2, thereby improving the test efficiency.

[0053] In the process of testing the fastness of the printing, it is necessary to use rolling parts 1 of different masses. Rolling parts 1 of different masses apply different pressures to the adhesive layer, and then the pulling force on the printing is different, so as to ensure the accuracy of the test. If multiple rolling parts 1 of different masses are provided, the cost will increase. In this embodiment, the rolling part 1 and / or the limiting part 2 are provided with a counterweight block, and the counterweight block is removable. The counterweight block can be provided with one or more, and the present embodiment does not specifically limit the number of counterweight blocks. The counterweight block can be clamped with the rolling part 1 and / or the limiting part 2, and can also be bolted to the rolling part 1 and / or the limiting part 2. Exemplarily, the counterweight block is bolted to the rolling part 1 and / or the limiting part 2, and the structure is simple and easy to disassemble and assemble.

[0054] The hand-held portion 12 is provided to facilitate rolling of the rolling portion 11. The hand-held portion 12 is fixedly connected to the rolling portion 11; or, the hand-held portion 12 and the rolling portion 11 are connected via a bearing 13. When the hand-held portion 12 is fixedly connected to the rolling portion 11, the operator holds the hand-held portion 12 to roll the rolling portion 11, and needs to press and rotate the hand-held portion 12 forward and backward to achieve the rolling of the rolling portion 11. When the hand-held portion 12 and the rolling portion 11 are connected via a bearing 13, the rolling portion 11 can rotate relative to the hand-held portion 12, and the operator presses the hand-held portion 12 downward at an angle, and the rolling portion 11 can roll on the printed product, thereby improving the grip comfort and reducing the operator's labor intensity.

[0055] One or two hand-held parts 12 can be provided. When one hand-held part 12 is provided, the hand-held part 12 is rod-shaped, and the rolling part 11 is provided with a receiving hole, which penetrates the rolling part 11 along the left and right directions of the rolling part 11, and one or more bearings 13 are provided in the receiving hole, and the outer ring of the bearing 13 is in interference connection with the inner wall of the receiving hole, and the inner ring of the bearing 13 is in interference connection with the outer surface of the hand-held part 12, and the hand-held part 12 protrudes from the left and right sides of the rolling part 11. When two hand-held parts 12 are provided, part of the hand-held part 12 can be rod-shaped. Grooves are provided on both end surfaces of the rolling part 11 in the axial direction, and the bearing 13 is provided in the groove 13, and the outer ring of the bearing 13 is in interference connection with the inner wall of the groove, and the inner ring of the bearing 13 is in interference connection with the rod-shaped part of the hand-held part 12.

[0056] Embodiment 2

[0057] Figures 4 to 6 Embodiment 2 is shown, in which the parts identical or corresponding to embodiment 1 are marked with the corresponding reference numerals of embodiment 1. For the sake of simplicity, only the differences between embodiment 2 and embodiment 1 are described. The difference is that the limiting portion 21 is rotatably connected with the connecting portion 22 and locked by the angle adjustment component 3, and the angle of the limiting portion 21 relative to the connecting portion 22 can be adjusted to change the inclination angle of the limiting portion 21. In actual use, different sizes of printing require the rolling portion 11 to have different rolling ranges to improve the accuracy of the test results. In this embodiment, the limiting portion 21 can rotate around the connecting portion 22 to change the inclination angle of the limiting portion 21, and the angle adjustment component 3 can lock the limiting portion 21 so that the limiting portion 21 and the connecting portion 22 are fixed, and the inclination angle of the fixing portion 21 is fixed. The inclination angle of the limiting portion 21 is adjusted by the angle adjustment component 3, so that the rolling member 1 can roll on printings of different areas, thereby improving the accuracy of the test results. There is no need to set multiple limiting members 2, which reduces the cost.

[0058] There are many types of angle adjustment components 3 that can realize the two-way rotation of the limiting part 21 around the connecting part 22 and can be locked, such as a friction disc locking mechanism and a nut and screw locking mechanism. Exemplarily, the angle adjustment component 3 includes a first screw 31, a first nut 32 and an elastic member 33. The first screw 31 is inserted through the limiting part 21 and the connecting part 22 and protrudes from both sides of the connecting part 22 along the first axis direction. The limiting part 21 can rotate around the first screw 31. The elastic member 33 is sleeved on the first screw 31 and clamped between the limiting part 21 and the connecting part 22. The first nut 32 is screwed to the first screw 31.

[0059] When it is necessary to adjust the angle between the limiting portion 21 and the connecting portion 22, loosen the first nut 32, and the limiting portion 21 can rotate around the first screw rod 31. After the limiting portion 21 rotates to the required angle, tighten the first nut 32, and the limiting portion 21 and the connecting portion 22 clamp the elastic member 33. The elastic member 33 applies a reaction force to the limiting portion 21 and the connecting portion 22, so that the limiting portion 21 and the connecting portion 22 are fixed together.

[0060] Specifically, the connection part 22 is provided with a U-shaped groove, one end of the limiting part 21 is inserted into the inside of the U-shaped groove, the first screw rod 31 passes through the U-shaped groove and the limiting part 21, the first nut 32 is sleeved on the first screw rod 31 and is located outside the U-shaped groove, and when the first nut 32 is tightened on the first screw rod 31, the connection part 22 and the limiting part 21 can be clamped. Alternatively, the limiting part 21 is provided with a U-shaped groove, and the connection part 22 is arranged inside the U-shaped groove.

[0061] See also Figures 4 to 6 For the convenience of description, the two inner sides of the U-shaped groove are respectively the first side 221 and the second side 222. The first side 221 and the second side 222 are both provided with first through holes at corresponding positions for placing the first screw 31. The limiting portion 21 is provided with a second through hole. The limiting portion 21 is located inside the U-shaped groove. The first screw 31 passes through the first through hole of the first side 221, the second through hole and the first through hole of the second side 222 in sequence. The limiting portion 21 and the connecting portion 22 are fixed by the first screw 31 and the limiting portion 21 can rotate bidirectionally around the axis of the first screw 31.

[0062] The elastic member 33 is sleeved on the first screw rod 31, and one or more elastic members 33 can be provided. Exemplarily, two elastic members 33 are provided, one of which is clamped between the first side surface 221 and the limiting portion 21, and the other elastic member 33 is clamped between the second side surface 222 and the limiting portion 21. When the first nut 32 is tightened around the first screw rod 31, the elastic member 33 is subjected to the squeezing force of the U-shaped groove and the limiting portion 21, which provides a reaction force to the limiting portion 21, so that the limiting portion 21 is clamped in the U-shaped groove. The elastic member 33 can be selected from existing elastic gaskets for easy acquisition.

[0063] In the present embodiment, a dial is fixedly provided on the connecting portion 22, and an arrow capable of indicating the dial is fixedly provided on the limiting portion 21. When the limiting portion 21 and the connecting portion 22 are at different angles, the arrow indicates different positions of the dial, so as to accurately adjust the angle between the limiting portion 21 and the connecting portion 22. The measuring range of the dial is 0-360°. In order to improve the operating convenience of the textile printing fastness testing device, the limiting portion 21 can rotate around the connecting portion 22 within a set angle range. In the present embodiment, the limiting portion 21 is a limiting plate, and the angle between the plane where the limiting plate is located and the mounting surface 112 is 0-90 degrees, that is, the limiting portion 21 can be locked at any angle between 0-90 degrees.

[0064] The end of the limiting part 21 away from the connecting part 22 is provided with a rounded corner to prevent the operator from being stabbed. The end of the limiting part 21 away from the connecting part 22 can be sleeved with a buffer to reduce the force on the textile and play a certain protective role on the textile. At the same time, the limiting part 21 is prevented from being stabbed or pounded to print, so that the test result is more accurate.

[0065] Embodiment 3

[0066] Figure 7 Embodiment 3 is shown, in which the parts identical or corresponding to those in Embodiment 1 are marked with the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences between Embodiment 3 and Embodiment 1 are described. The difference is that a height adjustment component 4 is provided between the connecting portion 22 and the rolling portion 11, and the height adjustment component 4 can change the distance between the connecting portion 22 and the mounting surface 112. The height adjustment component 4 can be used to adjust the position of the connecting portion 22 relative to the rolling portion 11 in the vertical direction, that is, to change the distance between the lowermost edge of the limiting portion 21 and the lowermost edge of the rolling portion 11, thereby adjusting the rolling range of the rolling portion 11. The height adjustment component 4 fixes the connecting portion 22 at a certain height position to ensure the limiting effect of the limiting portion 21 on the rolling portion 11.

[0067] There are many types of height adjustment components 4 that can realize the movement of the connection part 22 in the vertical direction and can be locked, such as a hydraulically driven plunger cylinder mechanism, a pneumatically driven plunger cylinder mechanism, and a screw nut locking mechanism. Exemplarily, the height adjustment component 4 includes a second screw 41 and two second nuts 42, the second screw 41 is inserted into the connection part 22 and is threadedly connected to the rolling part 11, the two second nuts 42 are screwed to the second screw 41, and the connection part 22 is sandwiched between the two second nuts 42.

[0068] When the connection part 22 needs to move upward, the two second nuts 42 located above the connection part 22 are rotated so that the second nuts 42 move upward along the second screw rod 41. The operator moves the connection part 22 upward along the second screw rod 41 to the first set height position, and then rotates the two second nuts 42 located below the connection part 22 so that the second nuts 42 are located below the connection part 22 to support the connection part 22. Finally, the two second nuts 42 located above the connection part 22 are tightened so that the connection part 22 is clamped between the second nuts 42 to ensure that the connection part 22 is fixed at the first set height position.

[0069] Specifically, mounting holes are provided at corresponding positions of the rolling part 11 and the connecting part 22 for placing the second screw 41. One mounting hole may be provided or multiple mounting holes may be provided. For the convenience of description, the mounting hole provided in the rolling part 11 is the first mounting hole, and the mounting hole provided in the connecting part 22 is the second mounting hole. Figure 7 In this embodiment, two first mounting holes are provided, and the two first mounting holes are spaced apart on the mounting surface 112 of the rolling part 11. A second screw rod 41 is provided in each of the two first mounting holes, and the second screw rod 41 is fixedly connected to the first mounting hole and extends upward in the vertical direction. Two second nuts 42 are screwed on each second screw rod 41. The connecting part 22 is provided with two second mounting holes, and the connecting part 22 is sleeved on the two second screw rods 41 through the second mounting holes and clamped between the two second nuts 42 in the vertical direction. The second nut 42 above the rotating connecting part 22 moves upward, the movable connecting part 22 moves upward along the second screw rod 41, and the second nut 42 below the rotating connecting part 22 moves upward, so that the second nut 42 clamps the connecting part 22 in the vertical direction. The second nut 42 and the second screw rod 41 are screwed together to fix the connecting part 22 at any position of the second screw rod 41. The two second screw rods 41 support the connection part 22 more stably, thereby reducing the probability that the second nut 42 and the second screw rod 41 are stuck due to the tilting of the connection part 22 .

[0070] In the absence of contradiction, the technical solutions of the above-mentioned embodiment 2 and embodiment 3 can be combined. Under the premise that the angle between the plane where the limiting portion 21 is located and the mounting surface 112 can be adjusted, the vertical height of the connecting portion 22 relative to the mounting surface 112 can be adjusted, so that the way to adjust the rolling range of the rolling portion 11 is diversified. When the area of ​​the print is less than 10cm*10cm, the vertical height of the connecting portion 22 relative to the mounting surface 112 and / or the angle between the plane where the limiting portion 21 is located and the mounting surface 112 can be increased to reduce the rolling range of the rolling portion 11, thereby further improving the convenience of operation. For prints with an area greater than 10cm*10cm and less than 10cm*40cm, the vertical height of the connecting portion 22 relative to the mounting surface 112 and / or the angle between the plane where the limiting portion 21 is located and the mounting surface 112 can be increased to expand the rolling range of the rolling portion 11, thereby ensuring that the rolling portion 11 can fully roll the print and improve the test accuracy.

[0071] Embodiment 4

[0072] The present embodiment provides a method for testing the fastness of textile printing, using a textile printing fastness testing device of any of the above embodiments, comprising: step 1: flattening a test sample and laying it on a test platform, the test sample comprising a cloth and a print arranged on the cloth; step 2: laying an adhesive layer on a rolling surface 111 of a rolling member 1, both sides of the adhesive layer being sticky; step 3: an operator holding a handheld portion 12 places the rolling member 1 on the print, and operates the handheld portion 12 to make the rolling portion 11 reciprocate around a first axis, and when the rolling portion 11 reciprocates, The limiting part 21 rotates with the rolling part 11 until it contacts the cloth, limiting the rolling part 11 from continuing to roll, and repeating this cycle so that the rolling part 11 rolls in the printing area; in the process of the rolling part 11 rolling back and forth, the adhesive layer repeatedly adheres to and separates from the printing, and the adhesive layer pulls the printing away from the cloth in the process of separating from the printing; when the rolling part 11 rolls back and forth for a first set number of times, the rolling is stopped and the shedding of the printing is observed; Step 4: Replace the rolling part 1 of different qualities, repeat steps 2 and 3, and then evaluate the firmness of the printing.

[0073] In step 1, the test platform is an existing platform having a plane and a clamping mechanism. After the test sample is flattened and laid on the test platform, the test sample is clamped with the clamping mechanism to ensure that the test sample will not shift during the test process, thereby improving the accuracy of the test result.

[0074] In step 2, the adhesive layer can be an existing double-sided adhesive tape, such as adhesive tape (oily double-sided adhesive tape), emulsion adhesive tape (water-based double-sided adhesive tape), hot-melt adhesive tape, calendering adhesive tape and reactive adhesive tape.

[0075] In step 3, the handheld portion 12 is provided with a buffer layer to improve the grip comfort of the operator. The first set number of times can be 15-45 times, such as 15 times, 20 times, 25 times, 30 times, 35 times, 40 times or 45 times, preferably 30 times.

[0076] In step 4, the roller 1 of different mass is replaced, which may be the entire roller 1 or the counterweight. The mass change is achieved by setting counterweights of different mass on the roller 1 and / or the stopper 2. The shedding of the print is observed. If the print falls off, it is considered that the print firmness is unqualified; if the print does not fall off, it is considered that the print firmness is qualified.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. 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 claims of the present invention.

Claims

1. A textile printing fastness testing device, characterized in that: include: A rolling member (1) comprises a rolling portion (11) and a hand-held portion (12), wherein at least a portion of the outer peripheral surface of the rolling portion (11) forms a rolling surface (111), the rolling surface (111) extends in an arc shape around a first axis, and the hand-held portion (12) is connected to the rolling portion (11) and protrudes from both ends of the rolling portion (11) along the first axis direction; A limiting member (2) is connected to the rolling portion (11), the limiting member (2) comprising two limiting portions (21), the limiting portions (21) being arranged on both sides of the rolling portion (11) in a radial direction, the limiting portions (21) extending downwardly at an angle relative to the rolling portion (11), and the lowermost edge of the limiting portion (21) being higher than the lowermost edge of the rolling portion (11).

2. The textile printing fastness testing device according to claim 1, characterized in that: The limiting member (2) further comprises a connecting portion (22), the limiting portion (21) being connected to the connecting portion (22), the top of the rolling portion (11) forming a horizontally extending mounting surface (112), and the connecting portion (22) being fixedly connected to the mounting surface (112).

3. The textile printing fastness testing device according to claim 2, characterized in that: The limiting portion (21) is rotatably connected to the connecting portion (22) and is locked via an angle adjustment assembly (3); the angle between the limiting portion (21) and the connecting portion (22) is adjustable to change the inclination angle of the limiting portion (21).

4. The textile printing fastness testing device according to claim 3, characterized in that: The angle adjustment assembly (3) comprises a first screw rod (31), a first nut (32) and an elastic member (33); the first screw rod (31) is inserted through the limiting portion (21) and the connecting portion (22) and protrudes from both sides of the connecting portion (22) along the first axial direction; the limiting portion (21) is capable of rotating around the first screw rod (31); the elastic member (33) is sleeved on the first screw rod (31) and clamped between the limiting portion (21) and the connecting portion (22); the first nut (32) is threadedly connected to the first screw rod (31).

5. The textile printing fastness testing device according to claim 2, characterized in that: The limiting portion (21) is a limiting plate, and the angle between the plane where the limiting plate is located and the mounting surface (112) is 0-90 degrees.

6. The textile printing fastness testing device according to claim 2, characterized in that: A height adjustment component (4) is provided between the connecting portion (22) and the rolling portion (11), and the height adjustment component (4) is capable of changing the distance between the connecting portion (22) and the mounting surface (112).

7. The textile printing fastness testing device according to claim 6, characterized in that: The height adjustment assembly (4) comprises a second screw rod (41) and two second nuts (42); the second screw rod (41) is passed through the connecting portion (22) and is threadedly connected to the rolling portion (11); the two second nuts (42) are threadedly connected to the second screw rod (41); and the connecting portion (22) is sandwiched between the two second nuts (42).

8. The textile printing fastness testing device according to claim 1, characterized in that: The rolling member (1) and / or the limiting member (2) is provided with a counterweight block, and the counterweight block is detachable.

9. The textile printing fastness testing device according to any one of claims 1 to 8, characterized in that: The hand-held portion (12) is fixedly connected to the rolling portion (11); or, the hand-held portion (12) is connected to the rolling portion (11) via a bearing (13).

10. A method for testing the fastness of textile printing, characterized in that: The textile printing fastness testing device according to any one of claims 1 to 9 comprises: Step 1: Spread out the test sample on a test platform, the test sample including the fabric and the print set on the fabric; Step 2: Laying an adhesive layer on the rolling surface (111) of the rolling member (1), wherein both sides of the adhesive layer are adhesive; Step 3: The operator holds the hand-held part (12) and places the rolling member (1) on the printed surface. The hand-held part (12) is operated to make the rolling part (11) roll back and forth around the first axis. The limiting part (21) rotates with the rolling part (11) until it contacts the fabric, thereby limiting the rolling part (11) from rolling further. This cycle is repeated, so that the rolling part (11) rolls in the printed area. During the reciprocating rolling of the rolling part (11), the adhesive layer repeatedly adheres to and separates from the printing, and during the process of separating from the printing, the adhesive layer pulls the printing away from the fabric; When the rolling part (11) reciprocates to reach a first set number of times, the rolling is stopped and the shedding of the print is observed; Step 4: Replace the roller (1) with one of different mass, repeat steps 2 and 3, and then evaluate the fastness of the printing.

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