This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of briefcases. This standard applies to briefcases made of various materials that have the function of storing official documents and materials. QB/T 2277-1996 Briefcase QB/T2277-1996 Standard download decompression password: www.bzxz.net

QB/T 2277--1996
Based on the actual situation of production and market, this standard highlights the requirements for genuine leather products, simplifies the requirements for artificial leather products, and strengthens the requirements for hardware accessories. This standard clarifies the qualified judgment of products, making this standard more operational. This standard is proposed by the Quality Standards Department of China Light Industry Association. This standard is under the jurisdiction of the National Fur Leather Standardization Center. The drafting units of this standard are: Beijing Leather Goods Factory, China Leather Industry Research Institute, Shanghai Oriental (Luggage) Group Company, Guangzhou Leather Goods Factory, Shanghai Donghua Leather Goods Factory, Zhejiang Wukuang Jiaxing Aviation Bags Factory. The main drafters of this standard are: Sun Peidu, Zhao Liguo, Ye Huiqiang, He Fengzhao, Li Hengde, Li Zhiping. 399
Light Industry Standard of the People's Republic of China
Briefcase
QB/T2277—1996
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of briefcases. This standard applies to briefcases made of various materials with the function of storing official documents and materials. 2 Referenced standards
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 will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. QB/T1327-1991 Test method for friction fastness of leather surface color QB/T2171-1995
QB/T 2172—1995
QB/T 2173--1995
3 Terminology
3.1 Genuine leather briefcase
Gold chip zipper
Injection zipper
Spiral zipper
Briefcases with more than 90% of the surface material made of top layer natural leather, and 10% of other materials are allowed. 3.2 Split leather briefcase
Briefcases with more than 85% of the surface material made of split natural leather. 4 Product classification
4.1 Varieties (by surface material)
4.1.1 Natural leather briefcases (including genuine leather briefcases and split leather briefcases). 4.1.2 Artificial leather and synthetic leather briefcases.
5 Technical requirements
5.1 Specifications
The longest distance of the product's main body length is the product specification. Its specifications and limit deviations are shown in Table 1. Table 1
320~390
390 (inclusive)~440
5.2 Sensory requirements
Limit deviation
5.2.1 The shape is full, the isolated line is natural, the pasting is flat, the corners are symmetrical and basically straight, and the corners are not allowed to have obvious wrinkles or warping. The corners should be neat and tidy. Approved by China Light Industry Association on January 27, 1997
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Implemented on September 1, 1997
Clean.
QB/T2277—1996
5.2.2 Natural leather surface material: uniform thickness, no cracks, cracks, or discoloration. The front and cover have no obvious loose surface, no edge breaks, and no obvious traces.
5.2.3 Natural leather handle: The folded edge of the foreskin is round and there is no exposed cut. 5.2.4 Dyeing edge: When the edges of the leather strips and the edges of the stitching need to be dyed, they must be dyed brightly and without spots, and no obvious traces of dyeing on the leather surface are allowed. 5.2.5 Artificial leather and synthetic leather surface material: uniform color, clear patterns, and no obvious prints, bumps, or bumps. 5.2.6 Lining: pasted flat, without bubbles, sewn firmly, straight, and neat. 5.2.7 Suture: The visible and stitching lines of the product are made of silk, nylon, or polyester. 5.2.8 Stitching: The upper and lower lines are matched, the stitches are straight, and the stitch length is consistent. There shall not be more than two stitches on a product, and the stitches shall not exceed two places. Only one stitch is allowed for leather briefcases. 5.2.9 Key stitching parts: The starting joint of the large surface and the side wall of the leather briefcase, the edge of the middle card compartment, the starting joint of the small business card pocket and the inner layer, and the joint of the back pocket and the edge must be reversed, and the number of heavy stitches shall not be less than 2 to 3. 5.2.10 Requirements for accessory plating: bright, no rust residue, no plating. 5.2.11 Zipper: no dislocation, no missing teeth, straight stitching, consistent margins, smooth pulling and closing. 2 Installation of parts: flat, firm, and basically symmetrical. 5.2. 12
5.2.13 Trademarks: clear graphics and text.
5.3 Physical properties
5.3.1 Load: 320mm~390mm briefcase load 2kg 390mm~440mm briefcase load 3kg, handles are not loose, handle iron bars are not obviously bent, shoulder straps are not broken, handles are not broken, and the bottom of the briefcase is not obviously sagging. 5.3.2 Durability of accessories: decorative locks, connectors, magnetic fasteners, etc. are normal after 500 times of opening and closing. There is no abnormality. The button hook is normal for one year without damage.
Genuine leather briefcases are normal for 900 times of opening and closing, and the hooks and hook rings are normal for two years without damage. 5.3.3 Zipper pull and close lightness: not more than 10N. 5.3.4 Leather surface color rubbing fastness: not less than 4.0/3.0 level (dry/wet). 6 Test methodbZxz.net
6.1 Specifications
Use a ruler to test, the minimum scale is 1mm.
6.2 Sensory organs
Under natural light, select a clear viewing distance and test with sensory organs. 6.3 Physical properties
6.3.1 Loading weight: Leather briefcases should be loaded with 1.5 times the prescribed weight, and other briefcases should be loaded with the prescribed weight. Hand carry and swing back and forth at an angle of 60°±3° five times (one for each forward and backward movement).
Note: Briefcases without special hand-held parts and shoulder straps are not subject to this test. 6.3.2 Durability of accessories: For combination locks, turn the word wheel by hand, and for other types of locks, insert the key and open and close once, and the connectors and magnetic fasteners should be opened and closed manually once.
6.3.3 Zipper closure and closure smoothness: Test according to QB/T*2171, QB/T2172, QB/T2173. 6.3.4 Leather surface color friction fastness: Test according to QB/T1327. Note: This test is carried out before leather cutting and production. 7 Inspection rules
7.1 Batch
Products of the same type produced by the same batch of raw materials and the same production process constitute an inspection batch. 401
7.2 Factory inspection
QB/T2277-1996
7.2.1 Products must be inspected piece by piece before leaving the factory, and can only leave the factory after passing the inspection and accompanied by a certificate of conformity. 7.2.2 Inspection items: sensory inspection.
7.2.3 Qualification judgment: If there are slight defects in three of the inspection items, it should be regarded as a qualified product. 7.3 Type inspection
7.3.1 Type inspection shall be conducted in any of the following circumstances. a) When there are major changes in product structure, process or materials; b) When the product is resumed after a long period of suspension; c) When the national quality supervision and inspection agency proposes a type inspection requirement; d) During normal production, type inspection shall be conducted at least once every six months. 7.3.2 Sampling quantity: Three products shall be randomly selected from the products that have passed the factory inspection. Two samples shall be inspected for each of the load-bearing, accessory durability and zipper closure smoothness. If one sample fails, the third sample shall be inspected. 7.3.3 Qualification determination:
7.3.3.1 Principle of single determination
If any one of the items in 5.3 fails, the product shall be judged as unqualified. If more than three other items in the technical requirements fail cumulatively, the product shall be judged as unqualified. If the product has defects that affect the use function, the product shall be judged as unqualified. 7.3.3.2 Batch determination principle
a) Natural leather briefcases: If only one of the three tested samples is unqualified, the product is judged to be qualified; if two are unqualified, double sampling is conducted to re-inspect the unqualified items. If five products are qualified during the re-inspection, the product is judged to be qualified. b) Artificial leather and synthetic leather briefcases: If all three of the three tested samples are qualified, the batch of products is judged to be qualified. If one is unqualified, double sampling is conducted to re-inspect the unqualified items. If five products are qualified during the re-inspection, the batch of products is judged to be qualified. 8 Marking, packaging, transportation, purchase and storage
8.1 Marking
8.1.1 Products that have passed the inspection of the production unit shall have the following markings: production unit name, trademark, product certificate (or inspection stamp). The product certificate shall include the following instructions: a) General instructions for use of the product;
b) Contact number of the production unit;
c) Address of the production unit.
8.1.2 The outer packaging mark should include the product name, production date, product number, color, and quantity. 8.2 Packaging
The inner packaging of the product should be paper or plastic, and the outer packaging should be carton or other substitute materials. 8.3 Transportation
Load and unload gently, and do not press heavily. Use cover tools to prevent rain and snow. 8.4 Storage
Store in a ventilated and dry place indoors, at least 200mm away from the ground and pond. Do not store together with chemical corrosives. 402
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