Anti-counterfeit stamp-ink Part 1: Technical requirements of UV-excitation flourescent anti-counterfeiting stamp-ink
Some standard content:
GB/T17121
The use of anti-counterfeiting seals is an effective means of seal anti-counterfeiting. It has been widely used months ago and has achieved remarkable results. In order to ensure stable and consistent product quality, the "Anti-counterfeiting Seal Ink" standard is specially formulated. In order to adapt to the needs of the continuous development of anti-counterfeiting technology, under the title of "Anti-counterfeiting Seal Ink", several parts are included, namely the technical conditions for anti-counterfeiting penetrating seal inks made with different anti-counterfeiting technologies. Currently, it includes Part 1 "Technical Conditions for UV-Excited Fluorescent Anti-Counterfeiting Penetrating Seal Ink". The anti-counterfeiting seal ink standards to be developed will become part of "Anti-counterfeiting Seal Ink". This standard quotes the latest standards in inks, such as GB/T14624.1-93. GB/T13217.3-91. This standard is Part 1 of "Anti-counterfeiting Seal Ink", which is applicable to UV-excited fluorescent anti-counterfeiting penetrating seal ink. Part 1 of this standard Appendix A, Appendix B and Appendix C are all records of the standard. This standard is submitted by the State Bureau of Technical Supervision. This standard is under the jurisdiction of the National Anti-Counterfeiting Standardization Technical Committee. This standard was drafted by the Gold Anti-Counterfeiting Technology Company of Nankai University. Drafters of this standard: Li Mingzhi, Tian Xin, Zhang Zhiguang, Dong Yiwang, Liu Jingtao, Yao Xiaochang, Xu Changbiao, Guo Shouren, 1 Scope
National Standard of the People's Republic of China
Anti-counterfeiting ink
Part 1: Technical conditions for ultraviolet excited fluorescent anti-counterfeiting penetrating ink
Anti-counterfeiting stamp-inkPart 1: Technical requirements of UV-excitatin fluorescent anti-counterfeiting permeating stamp-inkGB/T17121—1997
This standard specifies the product specifications, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of UV-excitatin fluorescent anti-counterfeiting permeating stamp-ink.
This standard applies to UV-excitatin fluorescent anti-counterfeiting permeating stamp-ink: 2 Reference standards
The texts contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards are subject to revision. Parties using this standard should discuss the possibility of using the latest versions of the following standards. GB/T 13217.3-91 Test method for ink fineness GB/T14624.193 Test method for ink color 3 Definitions
This standard adopts the following definitions.
3.1 Anti-counterfeiting stamp-ink is a kind of stamp that is not easy to copy and can be accurately identified. 3.2 UV-excitation fluorescent anti-counterfeiting penetrating stamp-ink UV-excitation fluorescent anti-counterfeining permealing stamp-ink
A penetrating anti-counterfeiting stamp made by using UV-excitation fluorescent anti-counterfeiting technology. 4 Technical requirements
4.1 Classification
According to the product color, it is divided into five types: red, yellow, black, yellow and invisible. 4. 2 Technical indicators
The technical indicators of this product (hereinafter referred to as UV-excitation fluorescent anti-counterfeiting penetrating stamp-ink) shall comply with the requirements of Table 1. Table
Product name
Fluorescent ink
Approximate standard sample
Approved by the State Bureau of Technical Supervision on December 1, 1997 Fineness
150-~1 000 mPa-s
Implementation on May 1, 1998
4.3 Performance indicators
GB/T 171211997
The non-fluorescent performance indicators of this product shall comply with the provisions of Table 2, and the fluorescent performance indicators shall comply with the provisions of Table 3. Table 2
Product Name
Red Fluorescent Printing Ink
Blue Fluorescent Printing Ink
Black Fluorescent Printing Ink
Yellow Fluorescent Printing Ink
Invisible Fluorescent Printing Ink
Product Name
Fluorescent Printing Ink
Volatilization
Through Drying
20 min
Color
Water resistance
Allow slight red
Allow slight blue
Allow slight black
Allow slight yellow
No color
Fluorescence heat resistance
Grade 3-5
Fluorescence light resistance
Grade 3~5
Heat resistance
Fluorescence water resistance
Grade 2~5
4.4 This product can only produce fluorescence when excited by external light of 254~400nm, and should not produce fluorescence when excited by visible light. 4.5 Fluorescent ink should have individual characteristics.
5 Test methods
5.1 Samples
5.1.1 Products are inspected by the quality inspection department according to the standards. They can only leave the factory after being issued with a certificate of conformity. 5.1.2 Inspections are divided into factory inspection and type test. Factory inspection items are color, fineness, and viscosity. 5.1.3 Type tests should be carried out in the following situations: 8) Trial production of new products or old products transferred to the factory for production; b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance c) During normal production, inspections are carried out every two months; d) After the product has been discontinued for a long time, production is resumed
5.1.4 Type test items are selectivity, heat adhesion, penetrating drying, color penetration, water resistance, fluorescent heat resistance, fluorescent light resistance, and fluorescent water resistance.
5.1.5 Products of the same category, the same color, and produced in the same period are considered a batch. According to the batch size and the nature of the inspection, sampling is carried out at a ratio of 1% to 5%, with a minimum sampling volume of no less than 50, and attention should be paid to the cleanliness and sealing of the samples. 5.1.6 If there are unqualified items in the inspection results, re-sample from the same batch of products for re-inspection, and the re-inspection results shall prevail. If there are still unqualified items, the batch shall be cut off as unqualified.
5.2 Color and fineness shall be inspected in accordance with GB/T14624.1 and GB/T13217.3 respectively. Fluorescent heat resistance, fluorescent light resistance, and fluorescent water resistance shall be tested in accordance with Appendix A, Appendix B, and Appendix C respectively. 5.3 Fall and heat resistance
5.3.1 Original
Expose an appropriate amount of fluorescent printing ink to a certain temperature condition, and observe its quality and appearance changes before and after a certain period of time. The quality change is expressed in percentage: the appearance change is expressed in level. 5.3.2 Tools and materials
a) Petri dish (7.5 cm in diameter); b) Ink knife;
) Scraper,
GB/T 17121
d) Automatic constant temperature box (sensitivity ±1°C); e) Analytical balance (lower scale).
5.3.3 Test procedure
a) Take an appropriate amount of fluorescent ink and divide it into two parts. Accurately weigh the mass. Put one part into the dried culture blood as a sample (about 2 mm thick), and keep the other part as a standard sample.
b) Place the cultured blood containing fluorescent ink in an automatic constant temperature box at 80°C for 24 hours, then take it out, weigh it accurately and compare it with the mass before the test:
Volatility is calculated by the following formula:
Volatility - mass before the test × mass after the test × 100% mass before the test
c) Heat resistance evaluation: check the degree of discoloration according to the method of GB/T14624.【d) Heat resistance evaluation standards are shown in Table 4.
Discoloration consistency
Same as standard color sample
No discoloration in benzene
Slight discoloration
Distinctive discoloration
Severe discoloration
Note: When the discoloration level and the degree of conjunctiva are not at the same level, the worse level of the two shall be used for determination. 5.3.4 Explanation
a) The fluorescent ink should be shaken before the test:
b) It should be dry and clean when cultured, and the quality change caused by non-volatile substances should be avoided as much as possible; Degree of conjunctiva
No conjunctiva
No conjunctiva
Slight conjunctiva
Obvious conjunctiva
Thick conjunctiva
c) After the sample is taken out of the incubator, do not shake or stir it to avoid damaging the surface of the fluorescent ink; d) The degree of conjunctiva should be evaluated before the degree of discoloration. 5.4 Color penetration
5.4.1 Principle
Put a proper amount of fluorescent ink on the filter paper for a certain period of time, and observe whether the trace circle of the fluorescent ink on the filter paper is colored, and check the color penetration of the fluorescent ink.
5. 4. 2 Tools and materials
a) A right-angle metal plate, see Figure 1:
b) Ink mixing;
e) Scraper knife:
d) Qualitative filter paper (ZB1915) medium speed 102;
"Family clock;
f) A glass plate, 40mn×60mm×5mm. 5.4.3 Test conditions
GB/T17121—1997
The test should be carried out at a temperature of (25+1)℃ and a temperature of (65±5)%. 5.4.4 Test procedure a) Swing the fluorescent ink to be tested: b) Place the filter paper flat on the glass plate and then press the metal plate so that the circular hole is close to the center of the filter paper; d) Place the adjusted fluorescent ink on the metal plate above the hole, use a scraper to put the sample into the hole, fill it up and scrape it flat, then carefully remove the metal plate and place the filter paper in the air, at the beginning; d) After 21h, remove the filter paper and observe the color penetration of the fluorescent ink. 5.5 Penetration drying property 5.5.1 Test principle At regular intervals, rub the scraped sample of fluorescent ink on the newsprint with the blank newsprint under a certain pressure until the blank newsprint is no longer stained by friction. Calculate the storage time of the scraped sample and use this time to represent the penetration drying property of the carbon light printing pool. 5.5.2 Tools and materials
a) A square glass sheet with a side length of 20 mm and a thickness of 2 mm; b) 10-gauge scales; c) Newspaper cut into 15 cm × 11 cm pieces; d) Ink knife and scraper; d) Timing clock.
5.5.3 Test method
a) Place a small amount of fluorescent printing ink to be tested on the newspaper with the ink knife, and use the ink scraper to scrape it into a thin layer. The scraped ink layer should be 1-5 mm wide and about 12 cm long (not less than 10 cm). b) Record the time when the oil sample is scraped. After an interval of 15 minutes, place the scraping sample paper on a smooth glass plate (with the ink sample facing [:]), cover it with a blank newspaper strip, and then press a square glass scale on the paper strip near the end of the scraped sample. e) Slowly grasp the other end of the white newsprint strip and move it in the horizontal direction of the paper sample, so that the newsprint rubs against the scraped sample under the pressure of the glass sheet and the base.
d) Check whether the newsprint is stained. If it is still stained, repeat the above test at different positions with new newsprint at regular intervals until the newsprint is not stained after the test. Then calculate the time required from the scraping of the oil sample to the newsprint after the test, which is the penetration and drying time.
5.6 Viscosity test
5.6.1 Test principle
When a substance is subjected to external force, the liquid layer is displaced and friction occurs between molecules. The resistance to friction is called absolute viscosity. 5.6.2 Instrument and material
a) Rotational viscometer:
b) Super thermostat.
5.6.3 Test method
GB/T 17121—1997
a) Before the test, check whether the pool of the instrument is clean and calibrate the zero point. b) Slowly pour the sample into the liquid pool, be careful not to fill it too full or too empty, and turn on the super thermostat to keep it overflowing at 25℃. c) According to the viscosity of the sample, put in a suitable rotary hammer, turn on the instrument switch with the right hand, and use the left thumb to rub the gear from left to right to make the rotating system run or start the white line.
d) After 15 rin of heat preservation operation, when the reading pointer on the instrument remains at a fixed point, record the indicated data, turn off the instrument to let the pointer return to the zero point, and then turn on the instrument with the same force method. After the pointer stabilizes, record the indicated reading again, check whether the two data are the same, if they are the same, they are the correct readings, and convert them.
5.7 Water resistance test
5.7.1 Test principle
Soak the dry fluorescent ink scraping sample in water, take out the scraping sample after a certain period of time, and rate it according to the change of the scraping sample, and use it to represent the water resistance of the fluorescent ink.
5. 7. 2 Tools and materials
a) Ink knife:
b) Scraping ink,
c) Scraping paper:
d) Distilled water,
e) Test tube:
f) Tweezers.
5.7.3 Inspection methodbzxZ.net
a) Place the tested fluorescent printing ink on the top of the dot-matrix paper with a ink knife, and use the ink scraper to scrape the scraped sample paper from top to bottom to form a uniform scraped sample, and then place it under a normal temperature bar and dry for 24 hours (the time for some varieties can be extended appropriately) b) Cut a small piece of the colored part after drying, and soak it in a water test tube. c) After soaking for 24 hours, use a needle to take out the scraped sample. Compare it with the unsoaked scraped sample and check the color change of the scraped sample. Evaluate the water resistance level of the fluorescent printing ink according to Table 5.
5.7.4 Notes
Degree of discoloration of the scraped sample
Severe discoloration
Obvious discoloration
Slight discoloration
Basically no discoloration
No discoloration
Degree of staining with liquid
Severe staining
Obvious staining
Slight staining
Basically small staining
A) Make a blank test for comparison, so as to observe the change of paper in the solution, and the paper change factor should be subtracted when grading. b) The room temperature should not be too low during the measurement, and it should be measured between 20~35°C under normal circumstances. 5.8 The individual characteristics of fluorescent printing ink are detected by special instruments. 6 Marking, packaging, transportation, storage
GE/T 17121
6.1 This product is packaged in iron cans (boxes) or iron barrels, plastic barrels, etc., and then packed into outer packaging boxes. 6.2 A label shall be attached to each barrel of fluorescent ink at an appropriate position. The label shall have the following marks: a) Name and trademark of the manufacturing company; b) Product name and model; e) Production batch number; f) Implementation standard code and number; e) Net content of each barrel; f) Shelf life; y) Factory code: 6.3 The outer packaging box shall be printed with the trademark, manufacturer name, product name, model, implementation standard code, number, quantity, quality, batch number, factory date and the mark "Do not invert". 6.4 This product can be transported by various means of transportation such as cars, ships, and airplanes, provided that the packaging requirements in 6.1 are met. 6.5 During transportation and handling, it shall not be thrown, dropped, or collided to prevent the packaging from being damaged and the anti-counterfeiting ink from spilling. This product must not be stored outdoors. The warehouse must be dry, ventilated, and free from moisture. It should be away from fire sources. The room temperature should be between -15 and 10°C.
A1 Test principle
GB/T 17121 1997
Appendix A
(Appendix to the standard)
Test method for fluorescence heat resistance
Use a proofing machine to print out a paper sample of fluorescent ink. After drying, heat it at a certain temperature for a certain period of time and then test the fluorescence intensity before and after heating. Compare the results and determine the fluorescence heat resistance of fluorescent ink based on the comparison. A2 Tools and materials
a) Automatic constant temperature box (sensitivity is 1), b) Fluorescence spectrophotometer:
d) Beaker;
e) Ink proofing machine:
f) Proofing paper.
A3 Inspection Procedure
A3.1 Use an ink proofing machine to print a thin film of uniform thickness on the proofing paper with fluorescent ink. After removing the ink, cut a small piece of paper sample from the middle and measure its fluorescence intensity at room temperature.
A3.2 Place the paper sample with measured fluorescence intensity in a constant temperature box at 80.℃ for 5 hours, take it out, cool it down at room temperature, and measure its fluorescence intensity.
A3.3 Calculate the relative light loss intensity according to the following formula: the light intensity of the paper sample after temperature
Relative fluorescence intensity =
Light intensity of the paper sample before temperature × 100
A3.4 Test 5 times in parallel and take the arithmetic mean. A3.5 Rating method: relative fluorescence intensity greater than 90 is level 5, 75~90 is level 4, 60~75 is level 3, 45~60 is level 2, and less than 45 is level 1.
A4 Notes
A4.1 Before proofing, the fluorescent ink should be mixed evenly.
A4.2 The film thickness should not be too large, usually not more than 30mA4.3 The room humidity during measurement is 25℃ and the humidity is (65±5). A4.4 After the paper sample is printed, it is usually placed at room temperature for more than 12 hours. A4.5 When measuring the fluorescence intensity before and after constant humidity, try to measure the same position, and the test conditions should be opposite. B1 Method 1—Xenon lamp irradiation method
B1.1 Test principle
GB/T 17121-1997
Appendix B
(Appendix to the standard)
Test method for fluorescent lightfastness
Use a fluorescent ink proofing machine to print a paper sample. After irradiating it with a xenon lamp for a certain period of time, judge whether the fluorescent ink is qualified based on the change in the fluorescence intensity of the paper sample:
B1. 2T. Tools and materials
a) Fluorescence spectrophotometer:
b) Ink proofing machine
c) Recessed lamp:
) Ink knife,
e) Proofing paper:
B1.3 Test procedure
31.3.1. Use a fluorescent ink proofing machine to print a uniform film on the proofing paper. After the film is irradiated, take a small piece of paper sample from the middle and measure its fluorescence intensity in the air. B1.3.2 Irradiate the paper sample with measured fluorescence intensity with a lamp (power 1 500 W, irradiation distance 2.0 m>3 h, illumination 40 000 1x ± 1000 1x), and then use a fluorescence spectrophotometer to measure the fluorescence intensity of the paper sample. B1.3.3 Calculate the relative fluorescence intensity according to the following formula: fluorescence intensity of paper sample after irradiation, relative intensity of irradiation - fluorescence intensity of paper sample before irradiation B1.3.4 Perform parallel inspection for 5 times and take the arithmetic mean. B1.3.5 Rating method: Relative fluorescence intensity greater than 90 is level 5, 75-90 is level 4, 60-75 is level 5. 3, 45-60 is 2, less than 45 is 1.
B1.4 Precautions
B1.4. 1 The printing ink should be adjusted before proofing.
B1.4.2 The film thickness should not be too large, usually not more than 30 um, B1.4.3 The room temperature during the test is 25: for: cloth, and the humidity is (65+5)% B1.4.4 After the paper sample is made, it is usually placed under the stove for more than 12 hours. 1.4.5 When measuring the fluorescence intensity before and after irradiation, the same position should be measured as much as possible, and the test conditions should be the same. B2 Method 2-Ultraviolet irradiation method
B2.1 Inspection principle
Use the paper sample made of fluorescent printing ink with a proofing machine, dry it, and then irradiate it with ultraviolet light of a certain intensity for a certain period of time. According to the change of the fluorescence intensity of the paper sample, it is judged that the strong light printing ink is qualified. B2. 2 Tools and materials
a) Fluorescence spectrophotometer;
b) Proofing machine;
c) UV lamp:
e) Proofing paper (80g/ml offset paper).
B2. 3 Test procedure
GB/T 17121—1997
B2.3.1 Use a proofing machine to print a thin film of uniform thickness on the proofing paper. After drying, cut a small piece of paper sample from it and measure its fluorescence intensity under room temperature.
B2.3. 2 Use a UV lamp to irradiate the paper sample with measured fluorescence intensity for 5 h. The irradiation distance is 0.10 r1· Then measure the fluorescence intensity of the paper sample.
B2.3.3 Calculate the relative fluorescence intensity according to the following formula: Fluorescence intensity of paper sample after irradiation
Relative fluorescence intensity -
Fluorescence intensity of paper sample before irradiation
B2.3.4 Test 5 times in parallel and take the arithmetic mean. B2.3.5 Rating method: Relative fluorescence intensity 90 is 5th level, 75~90 is 4th level, 60~~75 is 3rd level, 45~60 is 2nd level, and 45~100 is 1st level.
B2.4 Notes
B2.4.1 The fluorescent printing ink should be scratched before proofing. B2.4.2 The film thickness should not be too large, usually not more than 20 rtma B2.4.3 The test temperature is about 25°C - the temperature is (65+5)%: B2.4.4 After the paper sample is printed, it is usually placed in the room for more than 12 hours. When measuring the fluorescence intensity before and after irradiation, try to measure the same position. The test conditions should be the same. B2.4.5
Appendix C
(Appendix to the standard)
Fluorescence water resistance test method
C1 Test principle
Use an oil proofing machine to print the fluorescent ink on the paper sample, and take it out after a certain period of time in a water vapor bath. According to the change of the fluorescence intensity of the paper sample, judge whether the fluorescent ink is qualified:
Tools and materials
a) Fluorescence spectrophotometer:
b) Ink proofing machine:
c) Ink knife:
Break water
e) Proofing paper:
「) Pressure cooker.
C3 Test procedure
3. Print the fluorescent ink on the proofing paper with an oil proofing machine. For films with uniform thickness, cut small pieces of paper from the test paper and measure their fluorescence intensity at room temperature.
c3.2 Place the paper sample with measured fluorescence intensity in a high pot filled with boiling water (not in contact with water), continue heating until the water boils for 10 minutes, then take it out and let it dry naturally in the room. Then measure the fluorescence intensity of the paper sample. 3.3 Calculate the relative fluorescence intensity according to the following formula: Fluorescence intensity of the paper sample after the test,
Relative fluorescence intensity -
Fluorescence intensity of the paper sample before the test
C3.4 Perform 5 parallel tests and take the arithmetic average. GB/T 17121-:1997
C3.5 Rating method: Relative fluorescence intensity is 5 for 90, 4 for 75~-90, 3 for 6075, 2 for 43~60, 1 for less than 45,
C4 Precautions
C4.1 Before proofing, the photosensitive ink should be mixed evenly.
c4.2 The film thickness should not be too large, usually not more than 30um3 After the paper sample is printed, it is usually placed at a low temperature for more than 12 hours. [4.3
C4.4 When measuring the fluorescence intensity before and after water immersion, try to measure the same position, and the test conditions should be similar. After the paper sample is taken, it should be placed flat in the air and placed for more than 21 hours. Avoid strong light exposure. c4.55
Appendix C
(Appendix of the standard)
Fluorescent water resistance test method
C1 Test principle
Use an oil proofing machine to print the fluorescent ink on the paper sample. After a certain period of time in a water vapor bath, take out the sample. Judge whether the fluorescent ink is qualified according to the change of the fluorescence intensity of the paper sample:
Tools and materials
a) Fluorescence spectrophotometer:
b) Ink proofing machine:
c) Ink knife:
Distilled water
e) Proofing paper:
Pressure cooker.
C3 Test procedure
3. Print the fluorescent ink on the proofing paper with an oil proofing machine. For films with uniform thickness, cut small pieces of paper from the test paper and measure their fluorescence intensity at room temperature.
c3.2 Place the paper sample with measured fluorescence intensity in a high pot filled with boiling water (not in contact with water), continue heating until the water boils for 10 minutes, then take it out and let it dry naturally in the room. Then measure the fluorescence intensity of the paper sample. 3.3 Calculate the relative fluorescence intensity according to the following formula: Fluorescence intensity of the paper sample after the test,
Relative fluorescence intensity -
Fluorescence intensity of the paper sample before the test
C3.4 Perform 5 parallel tests and take the arithmetic average. GB/T 17121-:1997
C3.5 Rating method: Relative fluorescence intensity is 5 for 90, 4 for 75~-90, 3 for 6075, 2 for 43~60, 1 for less than 45,
C4 Precautions
C4.1 Before proofing, the photosensitive ink should be mixed evenly.
c4.2 The film thickness should not be too large, usually not more than 30um3 After the paper sample is printed, it is usually placed at a low temperature for more than 12 hours. [4.3
C4.4 When measuring the fluorescence intensity before and after water immersion, try to measure the same position, and the test conditions should be similar. After the paper sample is taken, it should be placed flat in the air and placed for more than 21 hours. Avoid strong light exposure. c4.55
Appendix C
(Appendix of the standard)
Fluorescent water resistance test method
C1 Test principle
Use an oil proofing machine to print the fluorescent ink on the paper sample. After a certain period of time in a water vapor bath, take out the sample. Judge whether the fluorescent ink is qualified according to the change of the fluorescence intensity of the paper sample:
Tools and materials
a) Fluorescence spectrophotometer:
b) Ink proofing machine:
c) Ink knife:
Distilled water
e) Proofing paper:
Pressure cooker.
C3 Test procedure
3. Print the fluorescent ink on the proofing paper with an oil proofing machine. For films with uniform thickness, cut small pieces of paper from the test paper and measure their fluorescence intensity at room temperature.
c3.2 Place the paper sample with measured fluorescence intensity in a high pot filled with boiling water (not in contact with water), continue heating until the water boils for 10 minutes, then take it out and let it dry naturally in the room. Then measure the fluorescence intensity of the paper sample. 3.3 Calculate the relative fluorescence intensity according to the following formula: Fluorescence intensity of the paper sample after the test,
Relative fluorescence intensity -
Fluorescence intensity of the paper sample before the test
C3.4 Perform 5 parallel tests and take the arithmetic average. GB/T 17121-:1997
C3.5 Rating method: Relative fluorescence intensity is 5 for 90, 4 for 75~-90, 3 for 6075, 2 for 43~60, 1 for less than 45,
C4 Precautions
C4.1 Before proofing, the photosensitive ink should be mixed evenly.
c4.2 The film thickness should not be too large, usually not more than 30um3 After the paper sample is printed, it is usually placed at a low temperature for more than 12 hours. [4.3
C4.4 When measuring the fluorescence intensity before and after water immersion, try to measure the same position, and the test conditions should be similar. After the paper sample is taken, it should be placed flat in the air and placed for more than 21 hours. Avoid strong light exposure. c4.5
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