Some standard content:
Light Industry Standard of the People's Republic of China
Subject Content and Scope of Application
QB/T1438....1992
This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of book products. This standard applies to all kinds of books, including diaries, hard cover books, soft cover books, etc. This standard does not apply to export products and specific products. 2 Reference standards
Packaging storage and transportation pictorial signs
GB 191
GB/T451.2 Determination of paper and paperboard quantitative method GB/T460 Determination of paper and paperboard sizing degree (ink streaking method) GB/T 2828
GB/T 2829wwW.bzxz.Net
GB/T6543
GB/T 12654
3 Terms and codes
Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Periodic inspection counting sampling procedures and sampling tables (applicable to inspection of production process stability) Corrugated paperboard
Writing paper
3.1 Book back: the side of the book bound, including flat back and round back. 3.2 Press groove: the concave line close to the back of the book.
3.3 Bleaching: The distance between the cover and the corresponding edge of the inner core. 3.4 Code: The codes of various types of book products are determined by Chinese phonetic initials, see Table 1. Table 1
Product Name
Diary
Hard Cover Book
Soft Cover Book
4 Product Classification
Product Code
4.1 Book products are divided into two categories: hardcover and paperback. Hardcover is hard cover and grooved, and others are paperback. 4.2 The paper should be writing paper and offset paper of not less than 60g/m2, and the illustrations should be offset printing coated paper or offset paper of not less than 80g/m2. 4.3 The opening of books in various places is based on the standard base paper size of 787mm×1092mm, and the product size is specified in accordance with the enterprise standard. The maximum deviation of the inner core size of each opening type is not more than ±1.5mm for first-class products and not more than ±2.0mm for qualified products. 5 Technical requirements
5.1 Product specifications and dimensions shall comply with the provisions of Article 4.3. Approved by the Ministry of Light Industry of the People's Republic of China on February 21, 1992 126
Implemented on August 1, 1992
5.2 Paper quantity shall comply with the provisions of Article 4.2
QB/T 1438—1992
5.3 Products are divided into first-class products and qualified products according to the technical indicators. 5.4 The cover shall be flat, clean, with complete text and clear patterns. Overprint deviation: not more than 0.5mm for first-class products and not more than 0.8mm for qualified products.
5.5 The back of the book shall be consistent with the inner core.
5.6 The parallel deviation between the groove and the back of the book shall not exceed 2.0mm for first-class products and not more than 2.5mm for qualified products. 5.7
The core pages of the inner core shall not be reversed.
See Table 2 for the technical requirements of the inner core.
Alignment on both sides, mm
Line, mm
Groove, mm
Degree, %
Glue application degree, mm
Test method
More than 100 pages with missing pages≤2
No missing pages for less than 100 pages
10～20
(No more than 2 places per page, no more than 8 pages per 100 pages)Not allowed
Qualified products
Missing pages≤4
Missing pages≤2
(No more than 3 places per page, no more than 12 pages per 100 pages)5~25
(No more than 2 places per 100 pages)
Not allowed
2~10mm2
No more than 3 pages per 100 pages,
No more than 2 pages per page
Deviation≤2
Product specification size: measured with a steel ruler with a graduation value of 1mm. Basically consistent
5~～30mm2
No more than 5 pages per 100 pages,
No more than 2 places per page
Deviation3
6.2 Paper quantity: measured according to the provisions of GB/T451.26.3 Cover: Under 8W fluorescent light, at a distance of 250mm, visual inspection. Overprint deviation is measured with a steel ruler with a graduation value of 0.5mm. 6.4 The back of the book matches the inner core, rounded corners, the core pages of the inner core, and the white pages: visual inspection. 6.5 The deviation between the groove and the back is parallel: put the back of the book against a vertical plane, and use a steel ruler with a graduation value of 0.5mm to measure the distance from the groove at the upper and lower ends to the vertical plane, and calculate the deviation value. 6.6 The core pages of the inner core are reversed: visual inspection.
6.7 Page number error of the inner core of the book: adopt the counting method. 6.8 Detection of two-sided threading, broken lines, torn pages, white pages, dirt, and rounded corners: Under 8W fluorescent light, at a distance of 250mm, visually inspect or measure with a steel ruler with a graduation value of 0.5mm.
6.9 Bleaching: Use a steel ruler with a graduation value of 0.5mm to measure the distance between the core and the two ends of one side of the cover, and calculate the deviation value. 6.10 Whiteness of paper for inner core: Use a whiteness meter to measure the blue light whiteness value. 127
QB/T1438-1992
6.11 Gluing degree of inner core: Determine according to the provisions of GB/T460. 7 Inspection rules
7.1 Product inspection is divided into delivery inspection and routine inspection. 7.2 This inspection adopts the piece method, and the sample unit is: piece. 7.3 Acceptance inspection
Perform according to the provisions of GB/T2828, adopt the normal inspection one-time sampling plan, and the inspection level is S-4.7.3.1
For the classification, inspection items, and qualified quality level (AQL) values of non-conforming products, see Table 3.7.3.2
7.4 Routine inspection
Non-conforming products
Cover and overprint
Specification and size
Seam and back matching
Pressure groove parallel
Core page frequency inversion
Two-side alignment
Technical requirements
Test method
Perform according to the provisions of GB/T2829, adopt the one-time sampling plan of discrimination level 1. Samples for routine inspection must be randomly selected from the qualified batches of acceptance inspection. 7.4.2
7.4.3 Routine inspection shall be carried out every six months. Routine inspections shall also be conducted in the following circumstances: a.
When the design, structure, key process and main raw materials are changed; when production is resumed after a three-month suspension; when the qualified quality level (AQL)
First-class products
Qualified products
The national quality supervision agency requires routine inspections. c.
7.4.4 The items, technical requirements, test methods and unqualified quality level (RQL) values of routine inspections shall be in accordance with the provisions of Table 4. Table 4
Technical requirements
Classification of unqualified products
Base paper setting
Gluing degree
Test method
Unqualified quality level (RQL)
First-class products
Qualified products
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 Product marking
QB/T1438—1992
The product should have the product name, manufacturer name (or trademark), specifications, page number and other markings. 8.1.2 Packaging marking
The markings on the outer packaging box, such as moisture-proof, heat-proof, and handle with care, should comply with the provisions of GB191. 8.2 Packaging
8.2.1 The small packaging of the product is wrapped with wrapping paper, and a piece of product certificate is placed inside. 8.2.2 The outer packaging box should indicate the article number, weight, quantity, factory name, date of manufacture, etc. 8.2.3 The outer packaging of the product shall be made of corrugated paper boxes, and the packaging shall be firm. When there are special needs, the supply and demand parties shall agree in accordance with the relevant provisions of GB/T6543.
8.3 Transportation
During transportation, the product should be kept clean and dry, and loaded and unloaded with care. It is strictly forbidden to be exposed to the sun and rain. 8.4 Storage
The storage warehouse of the product must be kept dry, ventilated, fireproof and moisture-proof. Additional instructions:
This standard was proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Stationery and Sports Goods Standardization Center. This standard was drafted by Beijing Paper Factory, Shanghai Paper Products Factory No. 2, and Tianjin Second Paper Factory. The main drafters of this standard are Liu Yuqin, Shi Jifang, Huang Jingxin, and Song Zhongan. 129
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