Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of the National Technical Committee on Leather Industry of Standardization Administration of China (SAC/TC 252).
This standard is issued as first edition.
Laptop Bag
1 Scope
This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of laptop bag.
This standard is applicable to bags, pockets and sleeves mainly used for storing laptops, tablet PCs and fittings.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1740 Determination of Resistance to Heat and Humidity of Paint Films
GB/T 1771 Paints and Varnishes - Determination of Resistance to Neutral Salt Spray (Fog)
GB/T 2912.1-1998 Textiles - Determination of Formaldehyde - Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)
GB/T 3920 Textiles - Tests for Colour Fastness - Colour Fastness to Rubbing
GB/T 4744-1997 Textile Fabrics - Determination of Resistance to Water Penetration - Hydrostatic Pressure Test
GB/T 17592-2006 Textiles - Determination of the Banned Azo Colourants
GB 19340-2003 Adhesives for Footwear and Case and Bag
GB 20400-2006 Leather and Fur - Limit of Harmful Matter
GB 21550-2008 The Restriction of Hazardous Materials in Polyvinyl Chloride Artificial Leather
GB/T 22889 Leather - Physical and Mechanical Tests - Determination of Surface Coating Thickness
QB/T 1586.1 Hardware Fitting of Case and Bag-case-lock
QB/T 2002.1 Technical Specification for Electroplated Layer on Leather Hardware Accessory
QB/T 2002.2 Technical Specification for Spray Paint Layer on the Surface of Leather Hardware Accessory
QB/T 2537 Leather - Tests for Colour Fastness - Colour Fastness to Cycles of To-and-fro Rubbing
QB/T 2922 Case and Bag - Test Method for Shaking Impact
QB/T 3826 Corrosion-resistant Testing Method of the Metal Deposits and Conversion Coatings for the Light Industrial Products - Neutral Salt Spraying Test (NSS)
QB/T 5083-2017 Case and Bag - Determination of Capacity Rate
3 Product Classification
3.1 Classified according to surface material:
a) Leather laptop bag (sleeve);
b) Artificial leather/synthetic leather laptop bag (sleeve);
c) Reclaimed leather laptop bag (sleeve);
d) Textile fabric laptop bag (sleeve);
e) Laptop bags (sleeves) of various fabrics;
f) Laptop bags (sleeves) of other materials.
3.2 Classified according to product structure:
a) Laptop bags (sleeves) with various shoulder straps;
b) Laptop bags (sleeves) with various handles;
c) Laptop bags (sleeves) with various shoulder straps and handles;
d) Bags, sleeves and pockets of other structures.
4 Requirements
4.1 Materials and fittings
Selected according to relevant product standards.
4.1.1 Limit of harmful substance
Limit of harmful substance in leather, reclaimed leather and textile materials shall meet the requirements of Table 1, GB 20400-2006; the limit of harmful substance in polyvinyl chloride artificial leather shall meet the requirements of GB 21550-2008; the limit of harmful substances in adhesive used for cases and bags shall meet the requirements of Table 2.
Table 1 Limit of Harmful Substances in Leather, Reclaimed Leather and Textile Materials
Note: see Annex A, GB 20400-2006 for the banned aromatic amines. If the content of 4-aminobiphenyl and (or) 2-naphthylamnine exceeds 30mg/kg, it cannot be judged that the banned azo colorants are used based on existing scientific knowledge without other evidences.
Table 2 Limit of Harmful Substances in Adhesives for Cases and Bags
Item Limit
Benzene/(g/kg) ≤ 5.0
Methyl benzene + dimethylbenzene/(g/kg) ≤ 200
Free toluene diisocyanate a/(g/kg) ≤ 10.0
N-hexane/(g/kg) ≤ 150
Dichloromethane Halohydrocarbon/(g/kg) ≤ 50.0
1, 2-dichloroethane
1, 1, 2-trichloroethane
Trichloroethylene
Total volatile organic compound/(g/L) ≤ 750
a The item is tested for polyurethane adhesive.
4.1.2 Locks
Locks shall meet the requirements of QB/T 1586.1 or relevant product standards.
4.1.3 Hardware fittings
Hardware fittings shall meet the requirements of QB/T 2002.1 and QB/T 2002.2.
4.2 Specification
Product specification shall meet the design requirements; the permissible deviation of bag products is ±10mm while that of tablet PC sleeve products is ±5mm.
Note: the longest distance of the contour length of the main product structure is the product specification.
4.3 Appearance quality
Appearance quality shall meet the requirements of Table 3.
Table 3 Appearance Quality Requirements
S.N. Item Requirements
High-grade product Acceptable product
1 Overall appearance Provided with plump form, natural arc, flat and smooth sticking, symmetrical angle; upright, tidy and clean Provided with plump form, natural arc, flat and smooth sticking, symmetrical angle; upright, tidy and clean
2 Fabric Leather, reclaimed leather and artificial leather/synthetic leather Uniform in thickness; free of broken surface, crazing and decoloration. The surface is flat and smooth; the front and rear large faces are free of damage, obvious mark and scratch; free of mark, unevenness and blotch Uniform in thickness; free of broken surface, crazing and decoloration. The surface is flat and smooth; the front and rear large faces are free of damage; the rear large face and bottom may allow for two mat patches with area not greater than 9mm2. Two invisible mark and scratches are allowable; free of obvious mark, unevenness and blotch
Textile Free of broken warp, broken weft, skipped yarn, skipped thread, mark, stain and flaw Main parts are free of broken warp, broken weft, skipped yarn, skipped thread, mark, stain and flaw while secondary parts may allow for two minor defects
3 Lining Flat, smooth and upright; neat and clean; free of defects like broken face, broken thread, broken weft, skipped yarn, broken roll and puffed selvedge
4 Stitches The upper and lower threads fit and the stitches are straight and flat. The stitch length is consistent. The surface shall be free of empty, dropped or skipped stitches. Free of crooked stitch and the backstitching shall be smooth and uniform The upper and lower threads fit and the stitches are straight and flat. The stitch length is consistent. The surface shall be free of dropped or skipped stitches. Free of serious crooked stitch. For single product, at most one position is allowed to have empty stitch, drop stitch and skipping stitch, and each shall not exceed two stitches; the backstitching shall be smooth and uniform
5 Zippers Stitching shall be straight and flat with consistent edge distance; the pull-off shall be smooth and free from mismatch, teeth falling and decoloration.
6 Fittings Bright; free of residual rust, skipped coating, burr, pinhole, bubbling, peeling, shedding and obvious scratch Bright; free of residual rust, skipped coating, burr, pinhole, bubbling, peeling and shedding
7 Assembly of fittings Flat, smooth and firm
8 Standard sample a The standard sample attached to the product shall be made of the same material with the main material of laptop bag
a Standard sample refers to the sample attached to the product to indicate the main material; this item is not inspected for the product without standard sample.
4.4 Identification
——according to the classification requirements of 3.1, certain surface material of single product shall be indicated when its area exceeds 20% of the total area;
——"splitting" font style shall be indicated for split leather material;
——for composite material made of various components, where the substrate thickness of leather is not greater than 2/3 of the total thickness, "leather" shall not be indicated.
4.5 Physical and chemical performance
Physical and chemical performance shall meet the requirements of Table 4.
Foreword i 1 Scope 2 Normative References 3 Product Classification 4 Requirements 5 Test Methods 6 Inspection Rules 7 Marking, Packaging, Transportation and Storage
ICS 59.140.35 分类号：Y48 备案号：57115-2017 中华人民共和国轻工行业标准 QB/T 5082—2017 电脑包 Laptop bag 2017-01-09发布 2017-07-01实施 中华人民共和国工业和信息化部 发布 前言 本标准按照GB/T 1.1—2009给出的规则起草。 本标准由中国轻工业联合会提出。 本标准由全国皮革工业标准化技术委员会(SAC/TC 252)归口。 本标准起草单位：广州市牛将军皮具有限公司、广州市质量监督检测研究院、新秀集团有限公司、广东麦斯卡体育用品有限公司、广州羿丰贸易有限公司、广州市金圣斯皮具制品有限公司、国家皮革制品质量监督检验中心(广州)、平湖市箱包行业协会。 本标准主要起草人：孙世彧、赵光迎、黄永钦、施继红、钟月华、邹胜利、廖恩兵。 本标准为首次发布。 电脑包 1范围 本标准规定了电脑包的产品分类、要求、试验方法、检验规则、标志、包装、运输和贮存。 本标准适用于以存放笔记本电脑、平板电脑及配件为主要用途的包、袋、套制品。 2规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注目期的引用文件，仅所注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。 GB/T 1740 Determination of resistance to heat and humidity of paint films GB/T 1771 Paints and varnishes - Determination of resistance to neutral salt spray (fog) GB/T 2912.1-1998 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method) GB/T 3920 Textiles - Tests for colour fastness - Colour fastness to rubbing GB/T 4744-1997 Textile fabrics-Determination of resistance to water penetration-Hydrostatic pressure test GB/T 17592-2006 Textiles―Determination of the banned azo colourants GB 19340-2003 Adhesives for footwear and case and bag GB 20400-2006 Leather and fur-Limit of harmful matter GB 21550-2008 The restriction of hazardous materials in polyvinyl chloride artificial leather GB/T 22889 Leather - Physical and mechanical tests - Determination of surface coating thickness QB/T 1586.1 Hardware fitting of case and bag-Case-lock QB/T 2002.1 Technical Specification for Electroplated Layer on Leather Hardware Accessory QB/T 2002.2 Technical Specification for Spray Paint Layer on the Surface of Leather Hardware Accessory QB/T 2537 Leather -- tests for colour fastness -- colour fastness to cycles of to-and-fro rubbing QB/T 2922 Case and bag-Test method for shaking impact QB/T 3826 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products--Neutral salt spraying test (NSS) QB/T 5083-2017 Case and bag-Determination of capacity rate 3产品分类 3.1按面层材料分类： a)皮革电脑包(套)； b)人造革/合成革电脑包(套)； c)再生革电脑包(套)； d)织物面料电脑包(套)； e)使用多种材料为面料的电脑包(套)； f)其他材料电脑包(套)。 3.2按产品结构分类： a)带有各种背带的电脑包(套)； b)带有各种提把的电脑包(套)； c)带有各种背带、提把的电脑包(套)； d)其他型式结构的包、套、袋。 4要求 4.1原料和配件 按有关产品标准选用。 4.1.1有害物质限量 皮革、再生革、纺织类材料有害物质限量值应符合GB 20400—2006和表1的规定；聚氯乙烯人造革有害物质限量应符合GB 21550—2008的规定，箱包用胶黏剂中有害物质限量应符合表2的规定。 表1 皮革、再生革、织物类材料有害物质限量 单位为毫克每千克 项 目 限量值 电脑包、电脑袋 电脑套 游离甲醛 ≤ 300 75 可分解致癌芳香胺染料 ≤ 30 注：被禁芳香胺名称见GB 20400-2006附录A。若4-氨基联苯和(或)2-萘胺的含量超过30 mg/kg，且没有其他的证据，以现有的科学知识，尚不能断定使用了禁用偶氮染料。
