How to check the quality of brand tag

As a professional manufacturer of bag hardware, we provide you with the following quality inspection guidelines for bag logo label hardware to help you identify high quality hardware.How to check the quality of brand tag?

How to check the quality of brand tag? Via Material and process standard

Alloy formula

is made of aviation grade zinc alloy/copper alloy, which has passed the salt spray test for 48 hours without oxidizing (only 24 hours for ordinary alloy).

The thickness of gold plating layer reaches 0.5μm (industry standard 0.3μm), and the vacuum ionized gold plating process is adopted, which improves the wear resistance by 30%.

Surface treatment process

• Anodized process: the surface of the hardware forms a dense oxidized film, with a scratch resistance level of 4H (ordinary coating 2H).
• Brushed texture: polished by 3000 mesh sandpaper, the texture is even without breakage, and the touch feeling is delicate

Quality inspection points

Physical property test

• Hardness test: Use 3H pencil to scratch with 1kg pressure at an angle of 45°, no scratch is qualified.
  Tensile strength test: chain bearing ≥80kg without breaking, fastener opening and closing 100,000 times without loosening (ordinary hardware only 50,000 times).

Detailed process control

Welding precision

laser welding, welding spot diameter ≤ 0.3mm, no air holes under the microscope.
Polishing treatment: through six polishing processes, the surface roughness Ra≤0.2μm, to achieve the mirror effect.

Environmental protection standard

All hardware meets EU REACH environmental protection standard, nickel release ≤ 0.2μg/cm²/week (luxury standard).

Salt spray test

96 hours without corrosion in neutral salt spray environment (common hardware only 24-48 hours).

How to check the quality of brand tag by Authentication method

Brand exclusive process

LOGO engraving: CNC precision engraving, font depth 0.15mm, edge slope 45° (fakes are mostly flat printing).
Anti-counterfeiting marking: each piece of hardware is embedded with invisible QR code, which can trace the production batch through brand APP scanning.
Identification of material properties
Density test: the density of genuine copper alloy is 8.5-8.9g/cm³, which can be verified by measuring the ratio of weight to volume with an electronic balance.
Magnetic absorption test: stainless steel hardware with a magnet adsorption without reaction, fake goods containing iron components are easily attracted.

Production process verification

• Seam check: the precision of the injection mold of zipper teeth reaches ±0.01mm, while the error of tooth spacing of fakes is ≥0.05mm.
  
• Plating test: the surface of the hardware is glued with 3M adhesive and the plating of the genuine product does not fall off (fakes are easy to stick off the gold coating).

Advantages of cooperation

Customization ability

support LOGO laser engraving, color PANTONE customization (such as Hermes orange, Chanel black).
Provide special texture development (such as crocodile skin pattern, carbon fiber pattern).

Quality control process

5% random sampling of hardware in each batch, and testing the proportion of components by spectrum analyzer.
100% pass 24 hours vibration test before shipment (simulate the bumpy environment of ocean transportation).

Technical support

Provide free test report on the suitability of hardware and leather.
Assist in developing new hardware structure (e.g. hidden fasteners, magnetic closure system).

In conclusion, oyc, as an old manufacturer in the bag hardware industry for more than 10 years, has some say in how to determine the quality of branded labels. After all, we have quite a lot of quality inspection equipment and related processes in-house.