This standard specifies the product classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of injection molded zippers. This standard applies to injection molded zippers (hereinafter referred to as "zippers"). QB/T 2172-2001 Injection molded zippers QB/T2172-2001 Standard download decompression password: www.bzxz.net

Classification No. Y73
Registration No. 94949496--2001
Light Industry Standard of the People's Republic of China
QB/T 2171~2173-2001
Zipper Standard
Metal Zipper
Published on 2001-11-15
Injection Zipper
China Light Industry Federation
Nylon Zipper
Implemented on 2002-05-01
QB/T 2171—2001
: Metal Zipper
QB/T 2172-2001
QB/T 2173-2001
Injection zipper
Nylon zipper
QB/T 2172—2001
This standard is a revision of QB/T2172-1995 Injection zipper. The revision contents are as follows. Delete the content of product classification by fabric tape material: Delete the original standard mid-fold pull strength index; Revise some of the original standard zipper physical performance indexes! Revise the specifications and models in the original standard. Add No. 4 and No. 6 injection zippers, and adjust No. 10 injection zipper to No. 9 injection zipper:
—Modify the bottom stop strength test method:
—Add the physical performance index and test method of the self-locking strength of the slider, the tensile strength of the slider and the torsion resistance of the slider pull tab:—Add the requirements and test methods of color fastness to friction and color fastness to washing. This standard was proposed by the General Business Department of China Light Industry Federation. This standard is issued by the National Center for Standardization of Daily Hardware. This standard was drafted by Fujian Xunxing Group Co., Ltd. Wenzhou Hehe Industrial Co., Ltd., Zhejiang Huaxin Group Co., Ltd., Jiangsu Lixi Zipper Co., Ltd., Shanghai Donglong Zipper Manufacturing Co., Ltd., and the Zipper Branch of China Hardware Products Association.
The main drafters of this standard are Shi Weijiang, Li Yuxin, Liao Yongfu, Ouyang Qi, Ge Chunqi, Gui Xilin, and Wang Zhiwu. From the date of implementation of this standard, the industry standard QB/T2172-1995 for injection zippers promulgated by the former State Bureau of Light Industry shall be abolished.
Light Industry Industry Standard of the People's Republic of China
Injection zippers
QB/T 2172-2001
Replaces QB/T2172--1995
This standard specifies the product classification, requirements, test methods, inspection rules and marking, packaging, transportation, and storage of injection zippers.
This standard applies to injection molded zippers (hereinafter referred to as "zippers"). 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards.
GB250—1995 Grey sample card for assessing color change GB251→1995 Grey sample card for assessing staining GB/2828-1987 Batch inspection counting sampling procedure and sampling table (applicable to inspection of continuous batches) Periodic inspection counting sampling procedure and sampling table (applicable to inspection of production process stability) GB/T 2829—1987
GB/T3920-1997 Textiles test for color fastness Color fastness to rubbing GB/T3921.3-1997 Textiles test for color fastness Color fastness to washing: test 33 Product classification
3.1 Product type (see Figure 1)
3.1.1 Products are divided into polyoxymethylene, nylon, etc. according to the material of the chain teeth. 3.1.2 Products are divided into arm-through injection molded zippers and reinforced zippers according to the processing technology. 3.1.3 Products are divided into strip packaging and code packaging according to the type. 3.1.3.1 Strip zippers can be divided into open-end and closed-end types: open-end types are divided into single open-end and double open-end types; closed-end types are divided into single head closed-end and double head closed-end types.
3.2 Specifications and models (see Table 1)
Table 1 Specifications and models
Specifications bj/mm
. Note: Specifications are the selection range of the width of the tooth chain after meshing. Approved by China Light Industry Federation on November 15, 2001. Implemented on May 1, 2002. Single-ended closed-end zipper. 3.3 Dimensional parameters (see Table 2). QB/2172—2001. Double-ended zipper “self-made”. Single-ended open-ended zipper. Zipper length L. Basic dimensions: 315~630. >630~1000
≤315
>315~630
>630~1000
>315~630
>630~1000
Limit deviation
Dimension parameters
Fabric width
Note: 1. Zipper basic size is greater than 1000mm, limit deviation is ±1 meter,
2. Open-end zipper has no back lead. Special size zipper should be ordered when ordering. 20
True head closed-end zipper group\×" type)
And head is more than "" type》
Front lead L
Back lead L2
4 Requirements
4.1 Main physical properties of zipper (see Table 3) QB/T 2172-2001
Table 3 Main physical properties of zippers
Horizontal control strength, N
Smoothness of closing and pulling, N
Top stop strength, N
Bottom stop strength, N
Open-end horizontal pulling strength, N
(including double open-end zippers)
Unseating and shifting strength, N
(including double parallel-end zippers)
Slider puller and tab combination strength, N
Slider puller and tab torque resistance , N·m
Slider tensile strength, N
Slider white chain strength, N
Load pulling times (double times)
Single tooth displacement strength, N
Zipper model
Note: 1. Reinforced zippers do not have single tooth displacement strength. 2. The torsion resistance requirements of sliders and pull tabs are only applicable to sliders with slider body and pull tabs connected. 3. The tensile strength requirements of sliders are not applicable to non-metallic sliders. 4.2 Surface quality of zippers
4.2.1 The surface of the zipper is bright in color, soft, smooth, flat, straight and well meshed. 4.2.2 Flatness and straightness of the zipper
Flatness of the zipper (see Table 4)
Flatness of the zipper
Length of zipper L/mm
Flatness mm
Allowed number
Straightness of zipper (see Table 5)
Length of zipper L
Straightness
>180~315
Table 5 Zipper Straightness
>180~315
>315~630
>315~630
The entire zipper has complete components, the chain teeth are arranged neatly, and there must be no missing or broken teeth. 8
>630~1000
>6301000
The zipper has no obvious skewness on the bottom stop, and the slider must not get stuck on the top stop or bottom stop when opening or closing. 21
QB/T 2172—2001
4.2.5 Open-end zippers (including double open-end zippers) are flexible to insert, remove and start: the strengthening tape and the cloth tape are firmly and neatly bonded. 4.2.6 Slider decorative layer
4.2.6.1 The surface of the slider is bright, bright, firm, uniform, without defects such as bubbles and peeling, the cavity is flat and smooth, the pull tab can be turned flexibly, and the trademark is clear.
4.2.6.2 The paint, plastic coating and coating of the slider are uniform and firm. 4.2.7 The zipper size parameters are in accordance with 3.3; the length of each hundred meters of the stacking is (100±0.5) m. 4.2.8 The chain belt is bright in color, and the color difference of the chain belt in the same batch number should reach the level 3 specified in GB2501995. The color difference of the cloth belt of the same chain belt should reach the level 4 specified in GB250-1995. 4.2.9 Color fastness
4.2.9.1 Color fastness to friction After the friction test, the color fastness of the chain belt shall meet the requirements of level 3~4 in GB251-1995.
4.2.9.2 Color fastness to washing After washing, the color fastness of the chain belt shall meet the requirements of level 3~4 in GB250-1995. 4.2.10 The number of internal joints per 100 meters of the yarded chain belt shall not exceed 3. 4.2.11 Special requirements for zippers or other components that do not contain banned azo, nickel, and pass needle detection shall be agreed upon by the supply and demand parties. 5 Test methods
5.1 Flat pull strength test method
5.1.1 Test equipment and fixtures
5. 1. 1. 1
Test equipment Material testing machine.
5.1, 1.2
Test range 2000N
Test speed
（300±10）mm/min.
Test equipment accuracy +0.5%FS.
5.1.1.5 The main width of the fire tool is 25mm, the clamping surface tooth angle is 60, the pitch is 1.5mm, and the tooth top width is 0.2mm. The two pieces of meshing clamping mouth to the inner teeth are 3min away from the plane 0.5mm below the tooth surface. 5.1.2 Test method and steps
Take a zipper sample with a length greater than 75mm and clamp it in the above fire tool. When installing, the chain tooth foot and the clamping part of the fire tool should be aligned and close (see Figure 2). Start the tester and test until the teeth are stripped or the yarn is damaged. The value displayed at this time is the flat tensile strength value.
5.2 Test method for light slippage of pull-in
5.2.1 Test equipment and fixture
70623515256 516003
5.2.1.1 Test equipment is an instrument composed of sensors, fixtures, transmission and display systems. 5.2.1.2 Test range ≤20N.
QB/T2172—2001
5.2.1.3 Test speed 1200mm/min~1300mm/min.5.2.1.4 Test equipment accuracy
±0.5%FS.
5.2.2 Test method and steps
Take a finished zipper, take any 200mm length (if the length is less than 200mm, use the actual length), pull it back and forth three times by hand, then place it on the workbench in the opened state, push the separated end flat by hand, clamp the other end in the fixed fixture, and put the pull tab on the shift fixture (see Figure 3). Start the tester to pull and close the zipper to the fixed position. The maximum tension value recorded in this process is the pull and close smoothness.
National fixed clamp
A072000000000000000-0003
AAFOOODGHOGOGO3GOOO
5.3 Top stop strength test method
5.3.1 Test equipment and fixture
5.3.1.1 Test equipment is the same as 5.1.1.1.
5.3.1.2 Test speed is the same as 5.1.1.3.
5.3.1.3 Clamp
Pull tab clamp should be a penetration type or clamp type clamp according to the pull tab structure. Chain strap clamp is the same as 5.1.1.5.
5.3.2 Test method and steps
Take a zipper sample with a length greater than 501nu and a zipper head and a top stop, clamp the zipper end in the fire tool, and install the pull tab in the pull tab clamp (see Figure 4). Start the tester and test until the zipper breaks. The strength value at this time is the top stop strength.
About 75mal
5.4 Bottom stop strength test method
5.4.1 Test equipment and clamp
5.4,1.1 Test equipment is the same as 5.1.1.1.
5.4.1.2 The test speed is the same as 5.1.1.3.
5.4.1.3 The test fixture is the same as 5.1.1.5. Www.bzxZ.net
5.4.2 Test method and steps
QB/F 2172—2001
Take a zipper sample with a length of about 50mm with a slider (the self-locking function of the self-locking slider should be excluded first) and a bottom stop, pull the slider to the bottom stop (the pull tab is turned up), and clamp the two ribs between the upper and lower clamps respectively (remove a section of about 10mm chain teeth first), and the distance between the clamps is about 75mm (see Figure 5). Start the tester and test until the zipper is broken. The strength value at this time is the bottom stop strength. 5.5 Open-end horizontal pull strength test method
5.5.1 Test equipment and fixture
5.5.1.1 Test equipment is the same as 5.1.1.1.
5.5.1.2 Test speed is the same as 5.1.1.3.
5.5.1.3 Test fixture is the same as 5.1.1.5.
5.5.2 Test method and steps
Take a zipper sample section with a split piece longer than 50mm and clamp the split piece in the above fixture. When clamping, the edge of the fixture must be in a straight line with the inner end of the plug (i.e. the end close to the chain teeth), and the clamp mouth must be close to the plug socket (see Figure 6). Start the tester and test until it is detached or the fabric tape is damaged. The strength value at this time is the open-end flat pull strength.
5.6 Socket displacement strength test method
5.6.1 Test equipment and fixture
5.6.1.1 Test equipment is the same as 5.1.1.1.
5.6.1.2 Test speed is the same as 5.1.1.3.
5.6.1.3 Test fixture The upper fixture is a folding card fixture, and the lower fixture is the same as 5.1.1.5. 5.6.2 Test method and steps
Take a zipper sample with a length greater than 50mm and a socket. Separate the two tooth chain belts, place the socket end in the upper fixture, and clamp the other end in the lower fixture (see Figure 7). Start the tester and test until the socket falls off or breaks. The strength value recorded at this time is the socket displacement strength.
5.7 Test method for pull tab combination strength
5.7.1 Test equipment and fixture
5. 7. 1. 1 Test equipment is the same as 5.1.1.1. 5. 7. 1. 2 Test speed is the same as 5.1.1.3. 5.7.1.3 Test fixture The upper fixture is selected as a penetration type or clamp fixture according to the characteristics of the pull tab, and the lower fixture is a partition type fixture. 5.7.2 Test method and steps
Take a finished zipper head and clamp it in the fixture (see Figure 8). Start the tester and test until the pull tab or the pull head body is damaged. The strength value at this time is the pull tab combination strength. 5.8 Pull tab torque resistance test
5.8.1 Test principle and technical indicators
5.8.1,1 Test principle The principle of the pull tab torque resistance test is shown in Figure 9. Fixture
Sliding mechanism
5.8.1.2 Accuracy ±1%FS.
5.8.1.3 Torsion speed 1.5r/mn.
5.8.2 Test method and steps
Cutting mechanism and
Twist furnace display system
Place the slider body in a fixed fixture and clamp it, then clamp the pull tab in a clamp that can rotate vertically to the slider body, and clamp the pull tab at the midpoint. Start the tester and test until the pull tab is twisted off or damaged relative to the slider body. The torque value at this time is the pull tab torque resistance. 5.9 Test method for tensile strength of pull head
5.9.1 Test mechanism and fixture
5.9.1.1 Test principle The test principle for tensile strength of pull head is shown in Figure 10. 5.9.1.2 The upper and lower clamps of the fixture enter the meshing mouth by 2mm. 5.9.1.3 Accuracy
Precision of force value display system: ±1%FS:
b) Precision of displacement display system: ±0.01 inm.
5. 9.1, 4 Test speed: 10mm/min.
5.9.2 Test method and steps
a) Adjust the upper and lower claws to clamp the slider on the upper and lower claws (same as 5.9.1.2):25
QB/T 2172—2001
b) Adjust the upper and lower claws to a reasonable test state:o) Start the test device and start the test until the deformation reaches 0.51nm. The test value recorded at this time is the tensile strength of the slider:
d) Determine whether the tensile strength of the slider is qualified or not by comparing it with the corresponding value in Table 3. 「For value addition and
(deformation control and!
display system
5.10 Slider self-locking strong shaving test method
5.10.1 Test equipment and fixture
5.10.1.1 Test equipment is the same as 5.1.1.1.
5.10.1.2 Test speed is the same as 5.1.1.3.
5. 10.1. 3 The test fixture is the same as 5.1.1.5. 5.10.2 Test method and steps
1 Display system
Lower clamp
Adjust the structure
Take a section of zipper sample with a self-locking slider that is longer than 100mm, pull the slider to the middle position, and clamp the chain belts on both sides of the separated end to the upper and lower clamps respectively. The distance between the clamps is about 75mm (see Figure 11). Start the tester and test until the slider slips off and the zipper is damaged. The strength value at this time is the slider self-locking strength. 5.11 Test method for load pulling
5.11.1 Test equipment and tools
5.11.1.1 The test equipment consists of a set of fixtures, a reciprocating transmission system and a display system. 5. 11. 1. 2
5. 11. 1.3
The instrument reciprocates 30 times/1min, the stroke is 75mm, and the opening and closing angles are: 30° for opening and 60° for closing. The test range of zipper specifications is within 3.5mm~12mm. 5.11.1.4 The horizontal width of the test fixture is 25mm, the vertical width is 10mm, the clamping surface tooth profile angle is 60, the pitch is 1.5mm, and the tooth top width is 0.2mm
5.11.2 Test method and steps
5.11.2.1 Take a zipper sample with a length of more than 250mm, and wipe the front and back sides with paraffin twice each. 5.11.2.2 Check the pull-up instrument, so that the pull-tab cooler stays at the lower limit, clamp the zipper on five fixed points, and fix the pull-tab (see Figure 12).
5. 11. 2. 3 Test steps
a) First roughly fix the tail end (bottom end) of the zipper on the fixed point A (with the pull tab facing inwards): b) Fix the pull tab on the pull tab tool:
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