Some standard content:
Chemical Industry Standard of the People's Republic of China
HG2171-—91
Published on November 18, 1991
PS version
Implemented on May 1, 1992
Ministry of Chemical Industry of the People's Republic of China
Standard digging exchange network-oa.b208o/conPublished
Chemical Industry Standard of the People's Republic of China
Question content and scope of application
HG2171-91||tt| |This standard specifies the model, specifications, technical indicators, test methods, inspection rules, packaging, marking, storage and transportation requirements of negative PS plates.
This standard applies to negative PS plates with aluminum base as support. 2 Reference standards
Packaging storage and transportation pictorial marks
Transport packaging receipt and delivery marks
GB6388
3 Product categories
The model of negative PS plate consists of the following parts: short printing version
Medium printing version
Long printing run version
Indicates negative type
Indicates positive type
3.2, Classification
According to different use needs, products with more than 50,000 prints and less than 100,000 prints are called short printing run versions, more than 100,000 prints and less than 200,000 prints are called medium printing run versions, and more than 20 square prints are called long printing run versions. Technical requirements
4.1 Product performance indicators
Should meet the requirements specified in Table 1,
People's Republic of China Chemical Industry Ministry of Education and Industry 1991-11-18 approved the standard u.b600
ec customer standard wet industry data free download
1992-05-01 implementation
product thickness
product appearance
control range
same version internal deviation
same resistance internal deviation
product version base surface roughness Ra value
product version base surface oxide layer quality
product version surface photosensitive layer quality
sense Optical properties
Ink properties
Hydrophilicity
4.2Product size
Control range
Deviation within the same version
Control range
Deviation within the same version
Deviation within the same batch
Control range
Deviation within the same version
Deviation within the same batch
Resolution
HG2171-91
Superior product
Dot reproduction capability
Base Background color
Product size and cutting deviation shall comply with the basic (length × width) size specified in Table 2
1310×1120
1260×1000
1270×1035
1030×770
920x760
830×645
905×565
550×650
670×645
280×390|| tt||370×450
Standard exchange net
First-class product
0.15~0.40www.bzxz.net
1.50~4.00
(2~98)%Dot performance is complete
Vertical and horizontal limit deviation
Qualified product
(3~97)%Dot performance is complete
Difference between two diagonals
6 Free download of standard industry information
HG2171—91
Other sizes can also be cut according to user requirements. 4.3 Warranty period
The warranty period is 1 year from the date of the product leaving the factory. Under the storage and transportation conditions specified in this standard, during the warranty period, the product shall comply with the provisions of 4.1 and 4.2.
5 Test method
5.1 Test chemicals
The chemicals used in this standard are all chemically pure; the various solutions used in this standard are for one-time use; the negative PS plate developer ink used in this standard is a special developer ink. 5.2 Product appearance inspection
Visually observe the layout under a yellow safety light. It should be flat and evenly coated without creases, scratches, spots, bubbles and other defects. 5.3 Product thickness inspection
Measure with a micrometer. At least 4 points are measured on each plate. The measuring points should be located on the four sides, 10 cm away from the edge. The arithmetic mean of the thickness of each point is taken as the product thickness of the plate. The maximum difference of the thickness of each point of the plate is the thickness deviation of the same plate. At least two products in the same batch are measured. The difference between the maximum and minimum values is the thickness deviation of the same batch of products. 5.4 Ra value determination of plate base surface roughness
The roughness of this product is only measured for Ra value. Remove the photosensitive layer with the corresponding solvent, rinse with water, dry, cool to room temperature, and use a roughness tester with an accuracy of 0.01μm to measure the Ra value of any five points on each plate, and take the arithmetic mean as the result. Take the maximum value minus the minimum value of the measurement result as the Ra value of the roughness of the plate, the same plate deviation ARa, 5.5 Plate base surface oxide layer quality determination
5.5.1 Treatment solution preparation
In a beaker with a scale, add 500~~800mL of distilled water, add 20g of anhydrous chromium trioxide, add 85% phosphoric acid 35mL after dissolving, and then dilute to 1000mL with distilled water, mix evenly, 5.5.2 Determination
In the diagonal direction of the PS plate, cut three test pieces larger than 10cm×10cm in the area more than 10cm away from the edge. After removing the plate surface photosensitive layer using the method in 5.4, apply 20% sodium hydroxide (NaOH) solution on the back of the aluminum plate to remove the back oxide layer. 1 minute after coating, neutralize the alkali solution on the aluminum plate with 10% nitric acid (HNO.) solution, rinse with distilled water, dry, and then accurately cut into 10cm×10cm test pieces, accurate to 1mm. Weigh the test piece with a 1/10000 balance, accurate to 0.1mg. Immerse the weighed test piece in 250mL of the treatment solution prepared according to 5.5.1, and control the temperature at 95~100℃. After the oxide layer on the test piece is completely removed, rinse with clean water, dry, cool to room temperature, and accurately weigh the test piece again. Calculate the mass per unit area of the oxide layer on the substrate surface of each test piece according to formula (1),
wherein: w—mass of the oxide layer on the substrate surface, g/m; w——mass of the test piece without removing the oxide layer on the substrate surface, g; W2——mass of the test piece after removing the oxide layer on the substrate surface, g:0.01——area of the test piece, m2
Take the test results of three test pieces as the arithmetic mean as the mass of the oxide layer on the substrate surface of the plate. The maximum measured value minus the minimum measured value among the three test pieces is the mass deviation of the oxide layer of the plate. The mass of the oxide layer of at least two plates in the same batch is measured, and the difference between the maximum and minimum values is the mass deviation of the oxide layer of the same batch of products.
5.6 Determination of the quality of the photosensitive layer on the plate
Standard collision and press find network wm.baBoeo.comHG2171-91
In the diagonal direction of the PS plate, more than 10cm away from the edge, accurately cut three 10cm×10cm test pieces, accurate to 1mm. Then weigh them with a 1/10000 balance, accurate to 0.1mg. Remove the photosensitive layer using the method in 5.4, and accurately weigh the test piece again. The quality of the photosensitive layer is calculated according to formula (2). w
W——mass of the photosensitive layer of the plate, g/m2; w, mass of the test piece without removing the photosensitive layer, g;
0.01—area of the test piece, .m2
Take the arithmetic mean of the test results of the three test pieces as the mass of the photosensitive layer of the plate. Among the three test pieces, the difference between the maximum and minimum values of the mass of the photosensitive layer is divided by the mass of the photosensitive layer of the plate, and then converted into a percentage, which is the intra-plate deviation of the photosensitive layer quality. In the same batch, at least two product plates are measured for the mass of the photosensitive layer. The difference between the maximum and minimum values is divided by the average mass of the photosensitive layer of the two products, and then converted into a percentage, which is the intra-batch deviation of the photosensitive layer quality. ,5.7 Photosensitive performance measurement
5.7.1 Resolution measurement
Use a special PS plate imaging performance test strip, expose the PS plate test piece with ultraviolet light according to the conditions recommended by the manufacturer, and observe the resolution test strip image of the processed test piece with a magnifying glass of 30 times or more after development. The line width that can clearly distinguish black and white lines is the resolution of the test piece. The continuous line without breaks should be used as the standard for judgment. 5.7.2 Dot reproduction ability measurement
Use a special PS plate imaging performance test strip marked with a dot area of 0.5%~99.5%. After exposing and developing the PS plate test piece according to the conditions of 5.7.1, use a magnifying glass of 30 times or more to observe the dot reproduction of the processed test piece. 5.7.3 Determination of plate base color
5.7.3.1 Testing instrument
Reflection densitometer.
5.7.3.2 Test method
PS plate test piece is exposed and developed according to 5.7.1, rinsed with water, and dried. Then, the base color of half of the test piece is removed with the corresponding solvent. The density of the part without base color removal and the density of the part with base color removal are measured with a reflection densitometer. The difference between the two density values is the base color of the plate. 5.8 Ink performance measurement
Use a special PS plate imaging performance test strip with a gradient density difference of 0.15. According to the conditions of 5.7.1, light and development are carried out. Use absorbent gauze to lift the ink on the plate, rinse with clean water and visually observe the inking situation. The inking starting area should be located in the plate exposure area corresponding to the exposure gradient density value of 0.60~1.05. It is unqualified when it is lower than 0.60 or higher than 1.05. 5.9 Hydrophilicity test
After exposure, development and ink extraction according to 5.8, rinse the remaining ink with water. There should be no ink marks on the blank part of the plate when observed by daylight.
5.10 Size
Inspect with a steel ruler with an accuracy of 1mm.
6 Inspection rules
6.1 Factory inspection
Products should comply with the provisions of this standard. Inspection by the inspection department of the manufacturer, qualified products can be shipped. 6.2 Inspection frequency
Standard exchange mm.b2soo.cm. Inspection rate shall be carried out according to the provisions of Table 3.
Inspection items
Product thickness
Roughness Ra value
Oxide layer quality of base surface
Photosensitive layer quality of base surface
Resolution
Dot reproduction capability
Base color of base surface
Inking performance
Hydrophilic performance
HG 217191
Each batch of photosensitive resin is a batch
Each batch of aluminum plate is a batch
Each production shift is a batch
Each batch of photosensitive resin is a batch
Each production shift is a batch
Each equipment and each shift output is a batch
Sheet-by-sheet inspection
Inspection frequency
Two sheets per batch
One sheet per batch
Two sheets per batch
One sheet per batch
6.3 Type inspection
Type inspection shall be carried out for this product when any of the following conditions occur. The type inspection shall include all items specified in this standard. When there are major changes in product structure, raw materials, and processes; a
When the product resumes production after a long period of suspension; b.
Periodic inspection shall be carried out for long-term normal production; C
d. When there is a significant difference between the factory inspection result and the last type inspection result, 6.4 Product Acceptance
6.4.1 The distributor and the user have the right to inspect the product in accordance with the provisions of this standard. 6.4.2 Product acceptance shall be carried out in accordance with the following provisions: 6.4.2.1 Sampling inspection in accordance with the provisions of Table 3
6.4.2.2 The distributor and the user shall accept the qualified products. If the products fail the inspection, re-inspection is required. Double sampling shall be carried out for re-inspection. If any of the indicators fail the second inspection, the distributor and the user shall have the right to request a replacement or return. 6.4.2.3 If the manufacturer and the user have a quality dispute and cannot reach a consensus, the arbitration unit shall be determined through negotiation between the two parties. The arbitration shall be carried out in accordance with the provisions of this standard. 7 Product packaging, marking, storage and transportation 7.1 Product packaging
Every two PS plates are separated by a neutral paper, and a certain number of PS plates are wrapped with moisture-proof paper, and then placed in a corrugated paper packaging box, and then packed into a wooden box. According to the needs, each wooden box can hold several boxes of PS plates. Each box of products should be accompanied by a product certificate and instruction manual. The label outside the box should indicate the product name, manufacturer, registered trademark, production date and shift, photosensitive agent batch number, aluminum plate batch number and other signs.
7.2 Packaging mark
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Should comply with the provisions of GB6388 and GB191, and mark with careful handling, heat protection, moisture protection, and direct sunlight protection. 7.3 Product storage
7.3.1 The product should be stored in a dry, light-proof, cool and ventilated place. The storage room temperature should be lower than 30℃. 7.3.2 The product should be kept away from chemicals. The stacking height should be less than 1.2m. Additional instructions:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Film Factory of the Ministry of Chemical Industry. This standard was drafted by the Second Film Factory of the Ministry of Chemical Industry, China Printing and Equipment Industry Association, and Beijing Xinhua Type Mold Factory. The main drafters of this standard are Wang Lei, Yue Demao, Xiu Wenfu, Hou Muqiang, and Sun Meng. The People's Republic of China Chemical Industry Standards Graphics PS HG2171-91 Editing Chemical Industry Standards Editorial Department (Ministry of Chemical Industry Standards Chemical Research Institute)
Postal code: 100013
Printing Chemical Industry Ministry Standardization Research Institute
Copyright reserved. No reproduction allowed
Format 880×12301/16
Number of words on a sheet 11000
First edition in October 1992
First printing in October 1992
Number of prints 1-500
Standard screen change: waxbaco/o0m1 Product packaging
Every two PS plates are separated by a neutral paper, and a certain number of PS plates are wrapped with moisture-proof paper, and then put into a corrugated paper packaging box, and then into a wooden box. According to the needs, several boxes of PS plates can be packed in each wooden box. Each box of products should be accompanied by a product certificate and instruction manual. The label outside the box should indicate the product name, manufacturer, registered trademark, production date and shift, photosensitive agent batch number, aluminum plate batch number and other signs.
7.2 Packaging mark
Standard exchange network Mmb28080.00m. Various standards industry information free download HG2171-91
Should comply with the provisions of GB6388 and GB191, and mark with careful handling, heat protection, moisture protection, and direct sunlight protection. 7.3 Product Storage
7.3.1 The product should be stored in a dry, dark, cool and ventilated place. The temperature of the storage room should be lower than 30℃. 7.3.2 The product should be kept away from chemicals. The stacking height should be less than 1.2m. Additional Notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the First Film Factory of the Ministry of Chemical Industry. This standard was drafted by the Second Film Factory of the Ministry of Chemical Industry, China Printing and Equipment Industry Association, and Beijing Xinhua Type Mold Factory. The main drafters of this standard are Wang Lei, Yue Demao, Xiu Wenfu, Hou Muqiang, and Sun Meng. The People's Republic of China
Chemical Industry Standards
Graphic PS
HG2171-91
Editor: Chemical Industry Standards Editorial Department
(Ministry of Chemical Industry Standards Chemical Research Institute)
Postal code: 100013
Printing Chemical Industry Ministry Standardization Research Institute
Copyright reserved. No reproduction allowed
Format 880×12301/16
Number of words on a sheet 11000
First edition in October 1992
First printing in October 1992
Number of prints 1-500
Standard screen change: waxbaco/o0m1 Product packaging
Every two PS plates are separated by a neutral paper, and a certain number of PS plates are wrapped with moisture-proof paper, and then put into a corrugated paper packaging box, and then into a wooden box. According to the needs, several boxes of PS plates can be packed in each wooden box. Each box of products should be accompanied by a product certificate and instruction manual. The label outside the box should indicate the product name, manufacturer, registered trademark, production date and shift, photosensitive agent batch number, aluminum plate batch number and other signs.
7.2 Packaging mark
Standard exchange network Mmb28080.00m. Various standards industry information free download HG2171-91
Should comply with the provisions of GB6388 and GB191, and mark with careful handling, heat protection, moisture protection, and direct sunlight protection. 7.3 Product Storage
7.3.1 The product should be stored in a dry, dark, cool and ventilated place. The temperature of the storage room should be lower than 30℃. 7.3.2 The product should be kept away from chemicals. The stacking height should be less than 1.2m. Additional Notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the First Film Factory of the Ministry of Chemical Industry. This standard was drafted by the Second Film Factory of the Ministry of Chemical Industry, China Printing and Equipment Industry Association, and Beijing Xinhua Type Mold Factory. The main drafters of this standard are Wang Lei, Yue Demao, Xiu Wenfu, Hou Muqiang, and Sun Meng. The People's Republic of China
Chemical Industry Standards
Graphic PS
HG2171-91
Editor: Chemical Industry Standards Editorial Department
(Ministry of Chemical Industry Standards Chemical Research Institute)
Postal code: 100013
Printing Chemical Industry Ministry Standardization Research Institute
Copyright reserved. No reproduction allowed
Format 880×12301/16
Number of words on a sheet 11000
First edition in October 1992
First printing in October 1992
Number of prints 1-500
Standard screen change: waxbaco/o0m
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