Scope of application:

The standard is applicable to various ticket holders made of leather, fur, recycled leather, artificial leather/synthetic leather, fabrics, and other materials. The phone case can be used as a reference

Reference Standard:

GB/T3920 Textiles - Color Fastness Tests to Rubbing

QB/T2537 Leather - Color Fastness Tests to Reciprocating Rubbing

Test Item:

Reference Standard Item Note 1 Identification Mark Product Information Note 2 Formaldehyde is a colorless gas with a pungent odor. Textiles containing formaldehyde will gradually release free formaldehyde during people's wearing process, causing respiratory and skin inflammation through contact with the human respiratory tract and skin, and also causing eye irritation. 3GB 21550 decomposable carcinogenic aromatic amine dyes refer to dyes synthesized from carcinogenic aromatic amines, commonly known as "prohibited azo dyes". After decomposable aromatic amine dyes are made into clothes, they cannot be distinguished from the appearance of textiles and can only be detected through technical testing, and cannot be eliminated. This type of dye can cause various malignant diseases and absorb carcinogens when in contact with human skin. The limit of harmful substances for adhesive used in ticket holders mainly includes benzene, toluene, xylene, n-hexane, TVOC, etc. 5QB/T 2790, QB/T 2537, GB/T 29865, GB/T  22889 Friction Color Fastness (Staining)/Grade 67 Quality of Accessories: The connectors, magnetic fasteners, shelf openings, etc. can be opened and closed normally without any abnormalities. 8. After the durability test of the zipper, there are no teeth falling, wrong teeth, or damage. 9. Appearance quality and sewing requirements include overall, surface material, suture, accessories, zippers, components, standard samples, etc. 10 QB/T 3826 Hardware accessories should not have more than 3 corrosion points, and the area of a single corrosion point should not exceed 1; Mm2

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