This standard specifies the technical specifications for gravure printing paper. This standard applies to paper used for printing monochrome and color pictorials, art pictures, illustrations, etc. QB/T 2249-1996 Gravure Printing Paper QB/T2249-1996 Standard download decompression password: www.bzxz.net

QB/T2249
This standard adopts the new atmospheric conditions (23±1)℃, (50±2)%RH, so the technical indicators have been adjusted accordingly, which is equivalent to the original standard level. This standard adopts FOCT9168-1980 "Gravure Printing Paper" in a non-equivalent manner. The sampling inspection of this standard is determined according to GB/T2828-1987 "Batch Inspection Count Sampling Procedure and Sampling Table (Applicable to Continuous Batch Inspection)".
The dustiness of this standard is determined according to GB/T1541--1989 "Determination of Dustiness of Paper and Paperboard". This standard is proposed by the Food and Papermaking Department of China Light Industry Association. This standard is under the jurisdiction of the National Papermaking Standardization Center. The drafting unit of this standard: Kaishantun Chemical Fiber Pulp Factory. The main drafter of this standard: Li Keji.
From the date of implementation of this standard, the original light industry department standard QB322-1980 "Gravure Printing Paper" will be invalid. 438
1 Scope
Light Industry Standard of the People's Republic of China
Gravure Printing Paper
This standard specifies the technical specifications for gravure printing paper. This standard applies to paper used for printing monochrome and color pictorials, art pictures, illustrations, etc. 2 Referenced Standards
QB/T 2249---1996
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 are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T147—1989 Size of base paper for printing, writing and drawing - Taking of samples of paper and paperboard
GB/T 450-1989
GB/T 451.1—1989
Determination of size and skewness of paper and paperboardGB/T 451.2—1989
Determination of basis weight of paper and paperboard
Determination of thickness of paper and paperboard
GB/T 451.3--1989
GB/T 453--1989
GB/T 456—1989
GB/T 457—1989
GB/T GB/T 460—1989
Determination of tensile strength of paper and paperboard (constant rate of loading method)Determination of smoothness of paper and paperboard (Buick method)Determination of folding endurance of paper
Determination of sizing degree of paper and paperboard (ink streak method)GB/T 461.2—1989
GB/T 462—1989
GB/T 463---1989
GB/T 1541--1989
GB/T 2828-1987
GB/T 7974--1987
Determination of surface absorption rate of paper and paperboardDetermination of moisture content of paper and paperboard
Determination of ash content of paper and paperboard
Determination of dustiness of paper and paperboard
Batch inspection counting sampling procedure and sampling table (applicable to inspection of continuous batches)Determination of whiteness of paper and paperboard (diffuse/vertical method) GB/T 8940.1—1988
GB/T 10342—1989
GB/T 10739—1989
GB/T 12911—1991
3 Product classification
Determination of whiteness of paper and paperboard (45/0 directional reflection method)Paper packaging and marking
Standard atmosphere for handling and testing of pulp, paper and paperboard samplesDetermination of ink absorption of paper and paperboard
3.1 Gravure printing paper is divided into flat paper and roll paper, or as stipulated in the contract. 4 Technical requirements
4.1 The technical indicators of gravure printing paper shall comply with the requirements of Table 1. Approved by China Light Industry General Association on October 11, 1996
TTiKAoNi KAca
Implemented on July 1, 1997
Breaking length
Indicator name
Average of vertical and horizontal directions for flat plate
Longitudinal direction for coil
Folding endurance
Average of vertical and horizontal directions
Gluing degree
Surface absorption speed 1
Smoothness
Average of front and back
Difference between front and back
Dust degree
0.2~1.5 mm2
Of which 0.2~1.5mm2 black dust
More than 1.5mm2
Delivery moisture
QB/T 2249-1996
Not less than
Not less than
Not less than
Not less than
Not less than
Not greater than
Not greater than
Not greater than
1) Can be replaced with ink absorbency of 45% to 65%. 4.2 The cutting edge of paper should be neat and clean.
pcs/m2
4.3 The fiber structure of paper should be uniform and conform to the paper sample specified in the order contract. 4.4 The paper should not have obvious hair loss, powder loss and print-through during printing. 4.5 The color of each batch of paper should be consistent and there should be no obvious difference. Specificationbzxz.net
100±4
120±5
No
4.6 The paper should be super calendered.
4.7 The diameter of the roll is (800 ± 50) mm. Paper size: in accordance with GB/T147 or the provisions of the order contract. The size error shall not exceed ±3 mm, and the deflection shall not exceed 3 mm.
4.8 The joints of the rolls shall be bonded with a uniform thin layer of tape or impermeable glue. The glue shall not be attached to another layer. The width of the joint shall not exceed 15 mm. The joints shall be marked with colored paper strips or color on the end of the roll. 4.9 The paper surface shall be flat and shall not have folds, wrinkles, damage, various spots, streaks, sand grains, hard blocks, light-transmitting points, wool cloth marks and holes visible by light.
4.10 Non-periodic internal paper defects of the roll that are not easy to find during the rewinding process, such as those listed in 4.9 of this standard, shall be inspected in accordance with the provisions of 5.12 of this standard and shall not exceed 2%.
4.11 The height difference between the highest and lowest of each meter of paper stack shall not exceed 7cm. 4.12 The following conditions shall be considered as second-class products, but no more than two conditions shall be met at the same time. 440
QB/T2249-1996
a) The quantitative value exceeds the allowable deviation by less than 2%; b) The tear length is less than 10% of the specified value; c) The dustiness exceeds the specified value by less than 20%; d) The smoothness is less than 20% of the specified value, and the difference between the two sides does not exceed 30%; e) The whiteness is less than 3% of the specified value.
5 Test method
5.1 The quantitative value shall be measured according to GB/T451.2. 5.2 The tightness shall be measured according to GB/T451.3. 5.3 The tear length shall be measured according to GB/T453. 5.4 The folding endurance shall be measured according to GB/T457. 5.5 The sizing degree shall be measured according to GB/T460. The whiteness shall be measured according to GB/T7974 and GB/T8940.1. In arbitration, it shall be carried out according to the provisions of GB/T7974. 5.6
Ash content shall be measured according to GB/T463.
5.8 Surface absorption rate shall be measured according to GB/T461.2 or GB/T12911. 5.9 Smoothness shall be measured according to GB/T456. 5.10 Dust degree shall be measured according to GB/T1541. Delivery moisture shall be measured according to GB/T462.
For the determination of paper defects inside the roll, take the outer 10 layers of the roll paper, remove the outermost 5 layers, and the remaining 5 layers are samples, which are cut into 5. 12
0.05m2 paper pieces, select and weigh the paper pieces with paper defects, and calculate the percentage of the sample. 6 Inspection rules
6.1 The number of items delivered at one time is considered a batch, but shall not exceed 280 pieces (rolls). 6.2 The manufacturer shall ensure that the products produced meet the requirements of this standard, and each piece (roll) of paper shall be accompanied by a product quality certificate when delivered. 6.3 The delivery test unit for gravure printing paper is piece (roll). 6.4 The sampling inspection for product delivery test shall be carried out in accordance with the provisions of GB/T2828. 6.5 The sampling shall be carried out in accordance with the provisions of GB/T450. The delivery sampling plan, sampling level and qualified quality level (AQL) shall be as specified in Table 2. 6.6
Sampling method
(roll)
151~3200
Normal secondary sampling inspection level S-3
Class B nonconforming products
Sample size
HikAoNiKAca-
Class C nonconforming products
Nonconforming classification
Class B nonconforming
Smoothness
Surface absorption speed
(Ink absorption ()
C-type unqualified
Breaking length
Folding endurance
Gluing degree
Dust degree
Delivery moisture
Appearance quality
QB/T2249—1996
6.7 The buyer has the right to inspect the product quality according to this standard. If there is any objection to the quality, it should notify the supplier to conduct a joint re-inspection or entrust the inspection department to conduct a re-inspection within one month after the arrival of the goods (or as stipulated in the contract). If it does not meet the provisions of this standard, it will be judged as a batch unqualified and the supplier will be responsible for handling it; if it meets the provisions of this standard, it will be judged as a batch qualified and the buyer will be responsible for handling it. 7 Marking, packaging, transportation, purchase and storage
7.1 The packaging and marking of gravure printing paper shall be carried out in accordance with the provisions of GB/T10342. 7.2 During transportation, it must be transported by a canopy, rainproof, moisture-proof and clean transportation vehicle. 7.3 When transporting, do not drop the paper (roll) from a height or roll it over on the spot. 7.4 Gravure printing paper should be properly stored and protected from rain, snow, ground moisture and harmful substances. It is strictly forbidden to squeeze it with large objects.
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