A device for detecting color fastness of printed fabric
By introducing a rack and toothed ring structure into the color fastness testing device, the fabric under test moves laterally back and forth and rotates during the testing process, which solves the problem that existing equipment cannot simulate multi-directional friction of clothing and improves the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING XIAN BAOXING PRINTING & DYEING CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-08-04
AI Technical Summary
Existing color fastness testing equipment cannot fully simulate the multi-directional friction between two pieces of fabric when clothing is actually worn, resulting in inaccurate test results.
A device for testing the color fastness of printed fabrics was designed. By setting a toothed rack and an outer toothed ring, the fabric to be tested undergoes both lateral reciprocating motion and rotational friction during the testing process, simulating the friction state of clothing when actually worn.
This improves the accuracy of color fastness testing, better reflects the friction effect of clothing during actual wear, and enhances the reliability of test results.
Smart Images

Figure CN224594446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of color fastness testing devices, and in particular to a color fastness testing device for printed fabrics. Background Technology
[0002] A color fastness tester is an instrument used to test the degree of color fastness. It is used in the textile, knitwear, and leather industries to evaluate the color fastness through rubbing tests. The rubbing color fastness test involves rubbing the test fabric with a piece of white fabric of the same material at a fixed time, force, and frequency, and comparing the color change before and after rubbing to determine the quality of the fabric.
[0003] In the test of color fastness to rubbing, the structure drives the test fabric to move back and forth in a directional manner, causing it to rub repeatedly against the white fabric. However, when the garment is actually worn, the two pieces of fabric do not always rub in the same direction. Therefore, the existing testing equipment cannot completely simulate the actual fabric friction situation.
[0004] Therefore, it is necessary to provide a device for testing the color fastness of printed fabrics to solve the above-mentioned technical problems. Utility Model Content
[0005] This invention provides a color fastness testing device for printed fabrics, which solves the problem that when clothing is actually worn, the direction of friction between two pieces of fabric is not always the same, so existing testing equipment cannot completely simulate the actual fabric friction situation.
[0006] To solve the above-mentioned technical problems, this utility model provides a color fastness testing device for printed fabrics, including a base plate. A fabric plate is provided at the front of the upper surface of the base plate, and a vertically movable device block is provided on one side of the rear of the upper surface of the base plate. A guide frame is horizontally fixedly connected to the front of the inner surface of the device block. A sliding piece is horizontally slidably connected inside the guide frame. The front end of the sliding piece extends above the fabric plate. An installation opening is vertically through the upper surface of the front end of the sliding piece. A rotating column is vertically rotatably connected inside the installation opening. A fastening ring is detachably installed on the outer surface of the rotating column and located below the sliding piece. An external toothed ring is fixedly connected to the outer surface of the rotating column and located above the sliding piece. A toothed rack extending to the front end of the base plate and meshing with the external toothed ring is horizontally fixedly connected to the upper surface of the guide frame.
[0007] Preferably, a threaded rod is vertically rotatably connected to one side of the rear upper surface of the base plate, and a threaded sleeve is threadedly connected to the outer surface of the threaded rod. The device block is fixedly connected to the outer surface of the threaded sleeve. Guide rods are vertically fixedly connected to both ends of the threaded rod on the upper surface of the base plate. A sliding hole corresponding to the two guide rods is vertically opened through the upper surface of the device block. The device block is slidably connected to the outer surface of the two guide rods through the two sliding holes.
[0008] Preferably, a rotating disk is laterally rotatably connected to the inner surface of the device block, and a hinge rod is fixedly connected to the outer edge of the inner surface of the rotating disk. A connecting rod is hinged between the hinge rod and the rear end of the sliding plate.
[0009] Preferably, a torsion block is fixedly connected to the top end of the rotating column.
[0010] Preferably, a plurality of columns are vertically fixedly connected to the front part of the upper surface of the base plate, the fabric plate is vertically slidably connected to the outer surface of the plurality of columns, and springs are vertically fixedly connected between the fabric plate and the base plate and outside the plurality of columns.
[0011] Preferably, the front and rear ends of the upper surface of the fabric plate are detachably mounted with fixing blocks.
[0012] Compared with related technologies, the color fastness testing device for printed fabrics provided by this utility model has the following beneficial effects: This utility model provides a color fastness testing device for printed fabrics. By setting a rack and an outer toothed ring, when the device is running, the fabric to be tested is installed at the bottom end of the rotating column. Then, the sliding plate of the device will continuously perform lateral reciprocating motion, and the bottom end of the fabric to be tested will repeatedly rub against the white fabric piece on the fabric plate. At the same time, the outer toothed ring will continuously reciprocate under the action of the rack, driving the rotating column to reciprocate, so that the fabric to be tested also keeps reciprocating, thereby better simulating the friction effect of the fabric under real wearing conditions and improving the accuracy of the test results. Attached Figure Description
[0013] Figure 1 A schematic diagram of a preferred embodiment of the color fastness testing device for printed fabrics provided by this utility model;
[0014] Figure 2 for Figure 1 A side view schematic diagram of the color fastness testing device for printed fabrics shown;
[0015] Figure 3 for Figure 1 The diagram shows a top view of the color fastness testing device for printed fabrics.
[0016] The following are the labels in the diagram: 1. Base plate, 2. Column, 3. Fabric plate, 4. Spring, 5. Fixing block, 6. Threaded rod, 7. Device block, 8. Guide rod, 9. Guide frame, 10. Sliding plate, 11. Rotating column, 12. Fastening ring, 13. Torsion block, 14. External gear ring, 15. Rack, 16. Rotating disk, 17. Connecting rod, 18. Motor. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Please refer to the following: Figure 1-3 The color fastness testing device for printed fabrics includes a base plate 1. A fabric plate 3 is provided at the front of the upper surface of the base plate 1. A vertically movable device block 7 is provided on one side of the rear of the upper surface of the base plate 1. A guide frame 9 is horizontally fixedly connected to the front of the inner surface of the device block 7. A sliding piece 10 is horizontally slidably connected inside the guide frame 9. The front end of the sliding piece 10 extends above the fabric plate 3. An installation port is vertically opened through the upper surface of the front end of the sliding piece 10. A rotating column 11 is vertically rotatably connected inside the installation port. A fastening ring 12 is detachably installed on the outer surface of the rotating column 11 and located below the sliding piece 10. An external toothed ring 14 is fixedly connected to the outer surface of the rotating column 11 and located above the sliding piece 10. A rack 15 extending to the front end of the base plate 1 and meshing with the external toothed ring 14 is horizontally fixedly connected to the upper surface of the guide frame 9.
[0019] The outer surface of the rotating column 11 and the lower part of the sliding plate 10 are provided with external threads, and the fastening ring 12 is provided with internal threads. It is installed on the rotating column 11 by means of threaded connection. When fixing the fabric to be tested, the fastening ring 12 is removed, and then the middle part of the fabric to be tested is pressed against the bottom end of the rotating column 11. Then the fastening ring 12 is put on from the bottom end of the rotating column 11 and tightened by the threaded structure, so that the fabric to be tested can be fixedly installed at the bottom end of the rotating column 11.
[0020] In actual use, the white cloth is fixed to the upper surface of the fabric plate 3, and the fabric to be tested is installed at the bottom of the rotating column 11. Then, the device is started, and the structure in the device can drive the sliding plate 10 to reciprocate laterally. During this process, the outer toothed ring 14 on the outer surface of the rotating column 11 will reciprocate under the action of the rack 15. The rotating column 11 as a whole and the fabric to be tested fixed below it will also rotate, so that the fabric to be tested will rub against the white cloth in the lateral reciprocating motion and also rub against it in the rotational direction. This is more in line with the friction state of clothing when it is actually worn, thereby improving the accuracy of the test results.
[0021] A threaded rod 6 is vertically rotatably connected to one side of the rear part of the upper surface of the base plate 1. A threaded sleeve is threadedly connected to the outer surface of the threaded rod 6. The device block 7 is fixedly connected to the outer surface of the threaded sleeve. Guide rods 8 are vertically fixedly connected to both ends of the threaded rod 6 on the upper surface of the base plate 1. A sliding hole corresponding to the two guide rods 8 is vertically opened through the upper surface of the device block 7. The device block 7 is slidably connected to the outer surface of the two guide rods 8 through the two sliding holes.
[0022] Rotating the threaded rod 6 can drive the device block 7 and its structure to move vertically, thereby moving the rotating column 11 upward, which facilitates the installation and removal of the fabric to be tested. The guide rod 8 can limit and guide the device block 7, so that it can only move vertically and prevent it from rotating with the rotation of the threaded sleeve.
[0023] A rotating disk 16 is laterally rotatably connected to the inner surface of the device block 7. A hinge rod is fixedly connected to the outer edge of the inner surface of the rotating disk 16. A connecting rod 17 is hinged between the hinge rod and the rear end of the sliding plate 10.
[0024] A motor 18 is fixedly connected to the outer surface of the device block 7. The output shaft of the motor 18 rotatably passes through the device block 7 and is fixedly connected to one side surface of the rotating disk 16. The rotating disk 16 can be driven to rotate by the motor 18. During the rotation of the rotating disk 16, the connecting rod 17 is driven to move through the hinge bar on its surface, which in turn drives the sliding plate 10 to move. Since the sliding plate 10 is limited by the guide frame 9, the sliding plate 10 will continue to reciprocate back and forth.
[0025] A torsion block 13 is fixedly connected to the top of the rotating column 11.
[0026] When installing the fabric to be tested, the fastening ring 12 needs to be rotated to install it on the rotating column 11. At this time, the torsion block 13 can be held to prevent the rotating column 11 from rotating synchronously.
[0027] Multiple columns 2 are vertically fixedly connected to the front of the upper surface of the base plate 1. The fabric plate 3 is vertically slidably connected to the outer surface of the multiple columns 2. Springs 4 are vertically fixedly connected between the fabric plate 3 and the base plate 1 and outside the multiple columns 2.
[0028] Fixing blocks 5 are detachably installed on both the front and rear ends of the upper surface of the fabric plate 3.
[0029] Both ends of the two fixing blocks 5 are vertically through-holes with mounting holes. The upper surface of the fabric plate 3 is also provided with screw holes corresponding to the mounting holes on the two fixing blocks 5. The two fixing blocks 5 are installed on the fabric plate 3 with screws. When installing the white fabric piece, the two fixing blocks 5 are removed and the fabric piece is placed on the fabric plate 3. Then the fixing blocks 5 are installed on the fabric plate 3 to press the fabric piece tightly. The white fabric piece can be fixed by friction.
[0030] During the testing process, spring 4 will always apply an upward force to fabric plate 3, so that the white fabric can keep in close contact with the fabric to be tested.
[0031] The working principle of the color fastness testing device for printed fabrics provided by this utility model is as follows:
[0032] In actual use, the white cloth is fixed to the upper surface of the fabric plate 3, and the fabric to be tested is installed at the bottom of the rotating column 11. Then, the device is started, and the structure in the device can drive the sliding plate 10 to reciprocate laterally. During this process, the outer toothed ring 14 on the outer surface of the rotating column 11 will reciprocate under the action of the rack 15. The rotating column 11 as a whole and the fabric to be tested fixed below it will also rotate, so that the fabric to be tested will rub against the white cloth in the lateral reciprocating motion and also rub against it in the rotational direction. This is more in line with the friction state of clothing when it is actually worn, thereby improving the accuracy of the test results.
[0033] Compared with related technologies, the color fastness testing device for printed fabrics provided by this utility model has the following beneficial effects: By setting a rack 15 and an outer toothed ring 14, the device installs the fabric to be tested at the bottom end of the rotating column 11 during operation. Then, the sliding plate 10 of the device will continuously perform transverse reciprocating motion, and the bottom end of the fabric to be tested will repeatedly rub against the white fabric piece on the fabric plate 3. At the same time, the outer toothed ring 14 will continuously reciprocate under the action of the rack 15, driving the rotating column 11 to reciprocate, so that the fabric to be tested also keeps reciprocating, thereby better simulating the friction effect of the fabric under real wearing conditions and improving the accuracy of the test results.
[0034] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for testing the color fastness of printed fabrics, characterized in that: Includes a base plate (1), a fabric plate (3) is provided on the front part of the upper surface of the base plate (1), and a vertically movable device block (7) is provided on one side of the rear part of the upper surface of the base plate (1). A guide frame (9) is horizontally fixedly connected to the front part of the inner surface of the device block (7). A sliding piece (10) is horizontally slidably connected inside the guide frame (9). The front end of the sliding piece (10) extends above the fabric plate (3), and the upper surface of the front end of the sliding piece (10) is vertically through-cut. There is an installation port, and a rotating column (11) is vertically rotatably connected inside the installation port. A fastening ring (12) is detachably installed on the outer surface of the rotating column (11) and located at the lower part of the sliding plate (10). An external toothed ring (14) is fixedly connected on the outer surface of the rotating column (11) and located at the upper part of the sliding plate (10). A rack (15) extending to the front end of the base plate (1) and meshing with the external toothed ring (14) is horizontally fixedly connected to the upper surface of the guide frame (9).
2. The printed fabric color fastness testing device according to claim 1, wherein, A threaded rod (6) is vertically rotatably connected to one side of the rear part of the upper surface of the base plate (1). A threaded sleeve is threadedly connected to the outer surface of the threaded rod (6). The device block (7) is fixedly connected to the outer surface of the threaded sleeve. Guide rods (8) are vertically fixedly connected to both ends of the threaded rod (6) on the upper surface of the base plate (1). A sliding hole corresponding to the two guide rods (8) is vertically opened through the upper surface of the device block (7). The device block (7) is slidably connected to the outer surface of the two guide rods (8) through the two sliding holes.
3. The printed fabric color fastness testing device according to claim 1, wherein, The inner surface of the device block (7) is rotatably connected to a rotating disk (16), and the outer edge of the inner surface of the rotating disk (16) is fixedly connected to a hinge rod. A connecting rod (17) is hinged between the hinge rod and the rear end of the sliding plate (10).
4. The printed fabric color fastness testing device according to claim 1, wherein, A torsion block (13) is fixedly connected to the top of the rotating column (11).
5. The printed fabric color fastness testing device of claim 1, wherein, The upper surface of the base plate (1) is vertically fixed to a plurality of columns (2), the fabric plate (3) is vertically slidably connected to the outer surface of the plurality of columns (2), and springs (4) are vertically fixed between the fabric plate (3) and the base plate (1) and located outside the plurality of columns (2).
6. The printed fabric color fastness testing device of claim 1, wherein, Fixing blocks (5) can be detachably installed on the front and rear ends of the upper surface of the fabric plate (3).