This standard specifies the terms, definitions, symbols, product classification, requirements, test methods, as well as marking, packaging, transportation and storage requirements for magnetic anti-counterfeiting inks. This standard applies to magnetic anti-counterfeiting inks of various printing plates. GB/T 18751-2002 Magnetic anti-counterfeiting inks GB/T18751-2002 Standard download decompression password: www.bzxz.net
This standard specifies the terms, definitions, symbols, product classification, requirements, test methods, as well as marking, packaging, transportation and storage requirements for magnetic anti-counterfeiting inks. This standard applies to magnetic anti-counterfeiting inks of various printing plates.

ICS _87.080
National Standard of the People's Republic of China
GB/T18751—2002
Magnetic anti-counterfeiting printing ink2002-06-13 Issued
People's Republic of China
National Institute of Measurement and Inspection General Administration
2003-01-01 Implementation
GB/T T8751--2002
1 State
2 Normative References
Terms. Definitions Symbols Units…..
Product Classification
...........
Social Security…
Marking Package, Transportation, Some Storage
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GB/T 187512002
This standard only stipulates the quality requirements of the anti-counterfeiting properties of magnetic anti-counterfeiting products. Therefore, when testing, it is necessary to use the standard with related requirements (such as: flatbed printing, newspaper printing, screen printing and other types of brushes) at the same time. This standard is issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the National Standardization Technical Committee. This standard is drafted by: the Anti-counterfeiting Product Quality Supervision and Inspection Center of the Ministry of Public Security, Beijing Zhongbiao Guoan Anti-counterfeiting Technology Co., Ltd. The authors of this standard are: Wang Ping, Liu Shuran, Wang Jingzi, Qian Xibei, Jian Qihua, Gao Lisheng. GB/118751—2002
Magnetic anti-counterfeiting products are one of the anti-counterfeiting products in the series. It is evolved from magnetic products. In the past, People do not have enough knowledge about the anti-counterfeiting properties of magnetic anti-counterfeiting oil discs. Therefore, when using them in many places, many adverse effects have occurred due to uneven quality. The purpose of formulating this standard is to distinguish between anti-counterfeiting oil discs and non-anti-counterfeiting oil discs, and to clarify the quality standards of anti-counterfeiting inks and the requirements for anti-counterfeiting properties. The quality control standard of the vehicle is used to describe the anti-counterfeiting properties of magnetic anti-counterfeiting oil discs and the characteristics of the oil itself as two parts. The focus is on describing the anti-counterfeiting properties of magnetic anti-counterfeiting oil discs, distinguishing between magnetic and strong inks, and making specific provisions for the characteristics of the oil discs. However, the reasons for not making further progress in describing the requirements for the characteristics of the oil discs are not based on the current national standards and testing basis.
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Magnetic anti-counterfeiting inkwwW.bzxz.Net
CB/T18751—2002
Standard specifies the following terms, definitions, symbols: product classification, requirements, test methods, as well as marking, packaging, transportation and storage requirements.
This standard is applicable to various types of magnetic anti-counterfeiting inks with different sensitivity. 2. Normative reference documents
The clauses in the following documents become the clauses of this standard through the proper application of this standard. For any referenced document with a date, all its subsequent amendments (excluding the dated error) or revised versions are not applicable to this standard. However, the parties who have reached an agreement on this standard shall study whether the latest versions of these documents can be used. For referenced documents without a date, their latest versions shall apply to this standard. GR/17001.1—1997 Double oil Part 1: External excitation yellowing type (amine type relief printing) Technical specification 0097-1 Printing cell number product number English, nomenclature type 3 terms, definitions, symbols, units
The following terms, symbols and units apply to this standard. 3.1
Anti-counterfeiting oil maguetieanti-counterfeiting oil is a kind of anti-counterfeiting oil made of acidic powder as a functional component. Note: The main application of anti-counterfeiting is special certification and labeling, etc. 3.2
Power to ercive fon'ce
is the force to cause the magnetic field to turn over, expressed in amperes per meter, A/m). 3. 3
Relative refractive index
relailreremanence
The residual susceptibility divided by the material area, the unit name is volts per square meter, the unit symbol is m17cm\.5. =Φ/S
In Chinese:
The residual susceptibility of a material, the unit is (b)5-the cross-sectional area of ​​the sample.
4 Product classification
4.1 Products are divided by their surface color under natural light and relative refractive index. GR/T1B75+—2002
4.2 Product specification: (according to 03/T3597【999Fees】)x
Relative residual magnetization (digital)SC(SC: for your product)Ink color
Oil type (printing version)
Example: P8S×—Product is black flat plate with residual magnetization intensity of ×. 5 Requirements
5.1 The various chemical quality indicators of the product must meet the technical requirements of the printing standard of the corresponding different printing versions. 5.2 The performance requirements of the product must meet the requirements of Table 1. Table 1 Magnetic technical indicators of magnetic anti-counterfeiting ink Item Name
Relative multiplication of residual material/M
Pre-correction force/(A/m)
Standard selection time correction of the retained sample without ring test, 5.3 Characteristics grading method.
Standard product comparison: +105%
Maintain the characteristics of the continuous determination of the external security level is divided into A, B, C, D, F5, 5.3.1 The overall grading method of the anti-counterfeiting characteristics is shown in Table 2. 5.3.2 The grading method of the security period is shown in Table 2. 2. Maintain the continuous improvement of anti-counterfeiting characteristics and the negative safety level of the method level
6. Test method
5.1. The minimum time limit for the quality inspection of magnetic anti-counterfeiting ink and the protection and performance
26 months
23 months
Safety period for anti-counterfeiting?
1 year3 years
G monthsT1 year
3 month <6 months
1October 73October
21-month
The quality of the printing ink is tested according to the national standard for its repellency and the testing basis. 6-2 Relative residual magnetization (B,) and coercive force (H! Inspection 6.2.1 Principle
The commercial sample of the material must be micronized by the local micro-chemical method. The usual measurement method is to use the loop method, that is, H only measures the H. This method selects a 50H saturation magnetic field to create a sample, and F: low, when testing the standard sample and the sample under test, the relative value can be obtained. The measurement source diagram is as follows: 1) The six-cat method is to rely on the relationship between the various characteristics of the material and the change of the chemical strength, or record the loop method, 2
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GB/T 18751:·2J02
L-frequency condition: A—readout equipment: N—measurement line diagram and column product electronic analog analyzer V. Communication V-field multiple number diagram 1 must measure principle
6.2.2 Equipment requirements
The equipment requirements are as follows:
a) The comprehensive uncertainty of the instrument is not more than 3,
b) The reading or sensitivity is, c.1 ms; C) Test tube: a high pipe filled with micro oil, the scale controller is required to determine the quality of the test piece, and the oxygen and fire are 6.2.3 Measurement environmental conditions
The measurement environment requirements are as follows:
There shall be no strong electric or magnetic interference around the inspection room) Temperature 15~-30
1;) The relative humidity is less than 75%.
6.2.4 Measurement steps
The following steps shall be performed:
a) Calibration: Use standard sample to test the calibrator. 1) Measurement of R, and He.
Place the sample to be measured in the measuring instrument, start the BH instrument computer program H will automatically calculate and print the test error,
mark, package, transport, storage and disposal
Magnetic anti-static mark, package, transport and storage shall comply with GB/T17001.11997 Section 7 requirements.
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