This standard specifies the method of using a pilling box to determine the pilling degree of fabrics under no pressure. This standard is applicable to most fabrics, and is more suitable for wool knitted fabrics. GB/T 4802.3-1997 Textile fabric pilling test Pilling box method GB/T4802.3-1997 Standard download decompression password: www.bzxz.net

1C8_59.080.30
National Standard of the People's Republic of China
GB/T 4802.3 --1997
Textiles
Fabric Pilling Test
Pilling Box Method
Textiles--Assessing the rate of pilling offabrics--Pilllng hox CB/T4802.3-1997 This standard is a revision of GB4802.3-8 fabric pilling test method pilling box method. Considering that the previous standard is equivalent to the International Wool Bureau's acid test method TM152-1980 fabric scouring grade test method "-rate rubbing pilling box method 3", this standard is still equivalent. This standard inherits the main technical content of the previous version, adds the turning of woolen fabrics at 200 revolutions and fine fabrics at 1140 revolutions, and adds a definition section. At the same time, the International Wool Bureau's post-test method is deleted. The sample sleeve is put on the sample tube, and the tape applicator and tape paper are used. The arrangement of chapters is edited. This standard will take effect from the month and replace GB4802.3-84. Appendix A and Appendix B of this standard are both appendices of the standard. This standard is proposed by the Science and Technology Development Department of China Textile Industry Association. This standard is under the jurisdiction of the Standardization Research Institute of China Textile Industry Association. The chapter units of this standard: Shangyou Textile Science Research Institute, Shangyou Wool and Linen Textile Science and Technology Research Institute. The main drafters of this standard: Chen Zhan and Ge Huizang. 1 Scope
National Standard of the People's Republic of China
Textiles
Pilling Box Method
Fabric Pilling Test
Teztiles-Assessiny tace rale of pilllng or Fabricy-pilling bu method
This standard specifies the method of using a pilling box to determine the pilling degree of fabrics under no pressure. This standard is suitable for most fabrics, and is more suitable for wool knitted fabrics. 2 Referenced standards
GB/4802.3-1997
Generation # G 4x03.3-—84
The provisions contained in the following standards become the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties with difficulties should use the latest version of the following standards as soon as possible. GB6529-86 Standard atmosphere for adjustment and testing of fabrics CB817C-87 Numerical correction specification
3 Definitions
This standard adopts the following definitions.
3. 1 Pilling
The fabric is subjected to friction and the fibers on the surface are rubbed and the fibers are shaped into small pilling ears. 3.2 PillingTesistaurr The ability of the fabric to resist pilling.
4 Principle
Specify the method and test data. Put the fabric sample on the polyurethane filling material and put it in a square box with rubber cork to prevent it from rotating.
Under the specified light, compare the rolled sample with the standard sample to evaluate the pilling level. 5 Packing
5.1 Pilling box, square wooden box, lined with 3.2mm thick rubber cork, each side of the inner wall is 235mm long. The speed of the box is 60r/min.
5.2 Polycool sample, 50R length 140mm, diameter 30mm5.3114mm square punch, take and change the plate, cut the sample with a whole knife, 5.4 wall machine.
5.5 Adhesive tape.
5. 6 Standard sample photo, the standard sample photo is a five-level system. 5.7 Rating auction.
National Technical Supervision Bureau 1997-06-09 approved 1997-12-01 implementation
6 Adjustment and test atmosphere
GH/T4802.3-1997
Pre-adjust the type and intensity according to the standard atmosphere specified in G6529, and the secondary standard atmosphere is used for the test. Sample
7.1 The sample is dried under the standard atmosphere for the test. 7.2 Randomly cut the test sample at a position more than 10cm away from the edge of the fabric: There shall be no friction points on the sample that may affect the test results. 7.3 Cut four 114mm×114mm test samples. After folding in half, use a sewing machine to form a sample set at 6m away from the edge (see Figure 2). Two of them are sample sets in the weft direction and two in the transverse direction. Single sign imm
Fabric surface
Self-working area
Figure 1 Samplewww.bzxz.net
7.4 Turn the chained sample over to make the fabric test surface incubate. 7.5 The sample is placed on the sample carrier under uniform tension. The sample chain edges should be separated and flatly attached to the sample carrier tube. 7.6 In order to fix the position of the sample on the sample and prevent the sample from loosening, wrap the sample with adhesive tape (the length should not exceed half of the sample). 8 Test Steps 8.1 Before the test, the pilling tube must be cleaned and no short fibers or other objects that affect the test should be left. 8.2 Put the four tubes with the sample in the box and close the box cover tightly. Turn the counter to the required number of rotations. B.3 Pre-counter rotation number Fabric generally rotates 7200r. Fine fabric rotates 14400r or the number of rotations you know. B.4 Start the pilling box. When the counter reaches the required number of rotations, remove the sample from the sample tube, remove the seams, flatten the sample, compare it with the standard sample in the rating box, and evaluate the pilling degree of each sample, expressed as the 1/2 line of the adjacent measurement. 9. The pilling grade of the test piece is expressed as the half mean (grade) of the test piece, and the average is calculated and rounded to two decimal places. If the half mean is less than 0.25, it is the next level (such as 2.25 is 2 short); if it is greater than or equal to 0.75, it is 2.85, it is 3 levels); if it is greater than 0.25 and less than 0.75, it is 0.5.
10 Test report,
state that the test is carried out in accordance with this standard, and report the following contents: 1) Name, specification and batch number of the sample; 2) Test period; 3) Test conditions: 4) Instrument model: 5) Ultra-soft grade,
GB/T4802:3-1997; 6) Any details deviating from this standard and abnormal phenomena in the test need to be explained, A1 Glue cork
GB/T4802-3-1997
Appendix A
(Appendix of the standard)
Ultra-soft cork accessories
After a period of use, the surface of rubber cork may become smooth, or add resin, softener and finishing agent. These changes will lead to a lower pilling degree. When this happens, you can use methanol to wipe the rubber cork. After drying, the rubber cork should be able to quickly recover the pilling performance. If the test is ineffective, the rubber cork must be replaced. For the determination method of the surface performance of the rubber cork (see Appendix B), after using a new pilling box or replacing a new tree, the friction performance of the rubber cork surface must be measured to determine the actual situation of its surface friction coefficient after use. According to the service life of the rubber cork, when the rubber cork friction coefficient drops to less than 1/2 of the original value, it is necessary to replace the new glue cork. A2 scattered samples must be checked whether the new sample tube has the model bottom trace when the agent is made, and the convex surfaces at both ends must be smooth. 43 Check
Pilling performance can only be checked directly with standard materials. A certain number of two or more fabrics of different grades (from 1 to 4 short) should be selected as test materials. Periodically or when necessary, use the test fabrics for acid testing and compare them with the initial samples to determine the differences and changes between pilling boxes or between pilling boxes.
Appendix B
(Standard Appendix)
Method for determining the rate of vibration of slow-acting cork linings Determine the friction performance of the surface of the rubber wood, which can be used to indirectly cut the ultra-ball performance of the pilling box: After using a new pilling box and replacing a new soft ice tongs, buy during use It is important to regularly check the performance of rubber and soft materials. B1 Equipment and supplies
1.1 A wooden block with a volume of about 115m×55mm×15mm and a weight of about 55, a weighing pan and a string B1.2 20g weight only.
B1.3 Grinding wheel and pulley device (see Figure B1). R2
Operation procedure
G8/T4E02.3—7997
20g weight
Follow the limit wood
Figure B1 Testing the performance of rubber and soft materials
When testing the rubber and soft materials, they must be placed on a horizontal surface (see Figure B1) B2.1
Control software
As shown in Figure B1, place the block, 20 magnetic codes, weighing plate and pulley device line parallel to the plane, B2.2E
2.3 Return the magnetic code to the special quantity until the block starts to move at a hook speed on the surface of the rubber village. When adding the weight on the weighing plate, the weighing plate must not be impacted.
2, 4 Use formula (H13 to calculate the static coefficient Cv of the rubber surface of the weighing plate (6) + the silicon code quality base C on the weighing plate, a single pass of the block on the basis of the need to feel 200g-(B1)
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