QB/T 2342-1997 Dry Electrostatic Copy Paper QB/T2342-1997 Standard Download Decompression Password: www.bzxz.net

QB/T2342
2—1997
This standard is a revision of ZBY32004—1986 "Dry Electrostatic Copy Paper". The main changes are as follows:
—Written in accordance with GB/T1.1—1993 "Guidelines for Standardization Work Unit 1: Drafting and Expression Rules of Standards Part 1: Basic Regulations for Standard Writing";
—Adopted the atmospheric conditions of 23℃ and 50% relative humidity. The relevant indicators in the technical requirements were adjusted accordingly: "Stiffness" was changed from accumulated data to type inspection item indicators;—Adjusted some indicators such as "tightness", "smoothness", "quantity", and "whiteness";—The inspection rules are carried out in accordance with GB/T2828 "Batch Inspection Count Sampling Procedure and Sampling Table (Applicable to Continuous Batch Inspection)".
This standard is not equivalent to the American JCPO-60 Electrostatic Copy Paper Standard (December 1, 1981). From the date of implementation of this standard, the original professional standard ZBY32004-1986 "Dry-process electrostatic copy paper" shall be invalidated. This standard is proposed by the Food Paper Department of China Light Industry Association. This standard is under the jurisdiction of the National Paper Standardization Center. The drafting unit of this standard: Beijing Paper Factory No. 1. The main drafters of this standard: Qiu Gangyi, He Dezhong, Hai Wenling, Li Shuhua, Wang Huajia. This standard was first issued in 1986.
1 Scope
Light Industry Standards of the People's Republic of China
Dry-process electrostatic copy paper
This standard specifies the technical specifications of dry-process electrostatic copy paper. This standard applies to paper used in dry-process electrostatic copiers. 2 Referenced standards
QB/T 2342-1997
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/T450-1989 Sampling of paper and paperboard samplesGB/T451.1-1989 Determination of size and deflection of paper and paperboardGB/T 451.2-1989
GB/T 451.3---1989
GB/T 453—1989
GB/T 456—1989
GB/T 460—1989
GB/T 462—1989
Determination of basis weight of paper and paperboard
Determination of thickness of paper and paperboard
Determination of tensile strength of paper and paperboard (constant rate loading method)Determination of smoothness of paper and paperboard (Buick method)Determination of sizing degree of paper and paperboard (ink line method)Determination of moisture content of paper and paperboard
GB/T GB/T 1541—1989
GB/T 1543—1988
GB/T 2828-1987
GB/T 7974—1987
Determination of dustiness of paper and paperboard
Determination of paper opacity (paper backing)
Batch inspection sampling by attributes and sampling table (applicable to inspection of continuous batches)Determination of whiteness of paper and paperboard (diffuse/vertical method) GB/T 10342—1989
GB/T 10739-1989
GB/T 12909--1991
GB/T 12914—1991
3 Product classification
Paper packaging and marking
Standard atmosphere for handling and testing of pulp, paper and paperboard samples Method for determining bending stiffness of paper and paperboard (resonance method) Method for determining tensile strength of paper and paperboard (constant rate stretching method) 3.1 Dry electrostatic copy paper is divided into flat paper and roll paper. 3.2 Dry electrostatic copy paper is divided into grade A and grade B according to quality. 3.3 Paper size should comply with the provisions of Table 1 or be produced according to the provisions of the order contract. Approved by China Light Industry Federation on January 16, 1998
TKAoNi KAca-
Implementation on September 1, 1998
Web width
Flat paper size
QB/T 2342--1997
3.4 ​​The diameter (or length) of flat paper roll can be produced according to the technical requirements stipulated in the contract
Paper size
Basic size
297×420
210×297
148X210
257×364
182X257
128X182
The technical indicators of dry electrostatic copy paper should comply with the provisions of Table 2 or be in accordance with the provisions of the order contract. 4.1
Indicator name
Double-break length longitudinal and transverse average
Stiffness 1
Volume resistivity
Smoothness
Opacity
Gluing degree
Dust degree
Front and back side average
Front and back side difference
(0.3~1.5)mm2
Delivery moisture
1) Type inspection shall be carried out every three months. Single
piece/m2
70.0±2.5
80.0±3.0
70.0±3.0
0.72~0.85
80.0±4.0
No
4.2 The allowable deviation of the width of the roll paper is -9mm; the allowable deviation of the flat paper is -2mm; the deflection is not more than 2mm. The cutting edge of the paper should be neat, clean, and without cracks, and the end of the roll should be flat. 4.3
The fiber structure of the paper should be uniform.
4.5 The paper surface should be flat, without wrinkles, folds, defects, holes, various spots, sand, hard blocks and other paper defects that affect the use. 4.6 The color tone of the paper should be consistent, and the whiteness difference of each batch of paper should not be more than 3%. 5 Test methods
The sample shall be taken in accordance with GB/T450.
QB/T2342—1997
5.2 The sample processing and testing shall be carried out in accordance with GB/T10739. 5.3 The paper size and skewness shall be carried out in accordance with GB/T451.1. 5.4 The quantitative shall be carried out in accordance with GB/T451.2. The tightness shall be carried out in accordance with GB/T451.3.
5.6 The breaking length shall be carried out in accordance with GB/T453 or GB/T12914, and the arbitration shall be carried out in accordance with GB/T12914. The stiffness shall be carried out in accordance with GB/T12909.
The smoothness shall be carried out in accordance with GB/T456.
5.9 The opacity shall be carried out in accordance with GB/T1543. 5.10
The whiteness shall be carried out in accordance with GB/T7974.
The glue application degree shall be in accordance with GB/T460.
The dust degree shall be in accordance with GB/T1541.
The moisture content of the delivery shall be in accordance with GB/T462.
6 Inspection rules
6.1 The manufacturer shall ensure that the product meets the requirements of this standard and shall attach a product quality certificate when delivering the product. 6.2 The number of deliveries at one time is called a batch, but shall not exceed 150 boxes. Sampling for delivery inspection shall be carried out in accordance with GB/T2828. The sample unit is box. The sampling plan and batch quality judgment shall comply with Table 3. 6.3
1～25
26～90
91～150
Sample size
13(26)
Second normal inspection level 1
Class B nonconforming products
Class C nonconforming products
Nonconforming classification
Class B non-conformity
Opacity
Class C non-conformity
Breaking length
Smoothness
GlueWww.bzxZ.net
Dust
Delivery moisture
Appearance quality
6.4 The purchaser has the right to accept in accordance with all or part of the technical requirements of this standard. With the agreement between the supply and demand parties, some technical performance and indicators can be increased or reduced. When the purchaser requires, the supplier shall provide a type inspection report. 6.5 If the purchaser has any objection to certain products, it shall notify the supplier within one month of arrival to conduct joint inspection. If it meets the requirements of this standard, it shall be judged as a batch qualified and the purchaser shall be responsible for handling; if it does not meet the requirements of this standard, it shall be judged as a batch unqualified and the supplier shall be responsible for handling. 7 Marking, packaging, transportation, storage
7.1 Flat paper packaging
a) Flat paper is packaged in 500 sheets and wrapped and sealed with moisture-proof paper or other materials. b) Use corrugated paper boxes for outer packaging. Use adhesive tape to seal the paper box interface. 7.2 Paper roll packaging
a) First roll a layer of plastic film on the paper roll, then roll a layer of wrapping paper, and add plugs at both ends of the roll. b) Use corrugated paper boxes for outer packaging of paper rolls. Use adhesive tape to seal the paper box interface. 7.3When delivering, each package of flat paper or each roll of paper should be accompanied by a product certificate. 475
TKAONi KAca-
QB/T2342-1997
1Other packaging methods may be adopted through negotiation between the supplier and the buyer, or in accordance with the provisions of GB/T10342. 7.4
5Paper should be properly stored to prevent the influence of rain, snow and ground moisture. 7.5
Use canopied and clean transportation tools when transporting products. Do not drop cartons from high places.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.