Glasses is popular fashion product for people, so require high quality. Quality is the first important, basic to win long term business with our customer, is first important to win win our company development.

 To minimize the number of defective units, we must monitor quality before, during and after production. This procedure is called a Quality Management Syste.

Inspection of materials and components supplied by subcontractors

Checkpoints performing visual inspection for spotting any cosmetic defects and functional testing (to spot functional defects) during production

Visual inspection and functional testing of fully assembled units

A Quality Management System will typically also specify how defective units will be dealt with and records kept for future reference to provide statistics.

So we have many way to control our quality  to be best ,such as :

1.with stronger R&D to design product, Understand customer full requirements and do goods product design, Product design must be adjusted to a manufacturer’s production capability, in terms of dimensions, materials, components and tolerances,which are suitable for production and also meet customer requirements , supplier ability.

2.with stronger QC/Technical Support team:

From material purchasing at the beginning and finished products at last, we have an inspector for each procedure to ensure the good quality and well-going production., we have  around 10 to 19 QC Staff ,In each production procedure, the inspector will check the goods one by one first, and then we go to the next step. To ensure everything is ok in each procedure.

We inspect the goods one by one before shipment,Here are the key areas that an Eyewear QC Checklist should address:

Color

Frame Outlook

Eye Size and Dimension

Hinge

Logo & Labels

Lens

Alignment

Cosmetics

Packaging

*Material Inspection Processes

Plastic Resin and Additives – Verify that the manufacturer uses the right type of resins and additives in creating plastic lenses. It is important that these materials possess the right specific gravity, refractive index, Abbe value, etc.

Glass – Verify the use of the specified raw materials and additives in the production of spectacle glass lenses.

Coating – Verify the use of approved coating and finishing materials to provide or enhance a variety of desirable properties such as hardness, color, anti-reflectance, water resistance , abrasion resistance, static resistance, and UV protection.

Frames – Verify the use of specified materials for the production of spectacle frames. These materials may include carbon fiber, plastic, rubber, and light metal alloy.

*Lens Inspection

Impact Resistance Test – Verify impact resistance of lens using the procedures provided in 21 CFR Part 801.410 or superior test method. This standard test method, commonly referred to as the “Drop Ball Test”, deals with dropping a 5/8 inch steel ball that weighs no less than 16 grams from a height of 50 inches. This testing protocol is required for sunglasses and eyeglasses sold in the USA, including the issuance of certification statement of impact resistance from supplier or manufacturer. An alternative and derivative of this method is the Variable Height Impact Test.

Refractive Index Check – Verify that the product possesses the refractive index specific to its type. BS 7394: Part 2 specifies the different refractive indices for spectacle lens.

Abbe Value Test – Determine the Abbe value by using appropriate lab tests to evaluate dispersion rating of lens. Higher Abbe value means lower dispersion and better vision quality for the users.

Density Check – Measure the specific gravity of lens, finished and semi-finished, and compare with approved samples or contractual specifications for compliance. This is essential as this may help reveal potential problems associated with issues like quality of materials and proper production techniques and protocols.

Reflective Index Check – Evaluate the anti-glare property of the lens so that users are not affected by glaring light.

Abrasion Resistance Check – Evaluate the propensity of product to resist abrasion using test procedures appropriate to the materials and coating used. A common test is to forcefully rub the lens with a clean cotton cloth by hand and check for scratches or transfer of color.

Transition Lens Check – Verify the time it requires for the lens to change from dark to clear and clear to dark under pre-determined lighting conditions.

Transmittance Rating Check – Verify the transmittance rating of sunglasses. Transmittance ratings are different in Europe, in New Zealand and Australia, and in the USA. Transmittance ratings must be in adherence with applicable standards including EN 1836:2005, AS/NZS 1067:2003, and ANSI Z80.3-2001.

UV Protection Check – Measure the UV Protection level of sunglasses using UV meter. UV Protection level should also be conveyed through a product marking.

Lens Dimensional Check – Verify the various dimensional measurements of lens including center thickness, edge thickness, roundness, base curve, and diameter.

*Frame Inspection

Frame Style Check – Compare frame with approved samples to check any deviations on style, rimmed or rimless, model, number, etc.

Frame color – Compare color with approved samples or specified values in the Pantone color chart.

Eye Size and Dimensions - Verify that the eye size and related dimensions are according to specifications and/or are the same with approved samples.

Bridge Check – Check that the bridge of the frame is the same in thickness, shape, material, and color with contractual specifications or approved samples.

Temple Check – Verify that eyewear temples do not have noticeable deviations from that in approved samples or specifications including style, material, thickness, color, and length.

Attachments – Inspect frame attachments, if any, for compliance with specifications and that there are no signs of damage or defect such as scratches, imperfections, and chips.

*Assembled Eyewear Inspection

Lens Tightness of Fit – Verify that lenses are fitted into the frame with appropriate tightness so that they do not fall off under normal use. Conduct laboratory testing to determine the force necessary cause detachment of lens from the frame, if necessary. This is recommended for high-end sunglasses and industrial eyewear.

Cosmetic Defects Check – Inspect eyewear for any sign of manufacturing defects and handling damage including scratches, chips, coating pits, drips, and blemishes.

Drilled Lenses Check – Verify the drilled lenses are secured and that there are no visible cracks, chips, and deformities in the drill holes.

Labeling – Verify that the labels used in the product comply with relevant standards as well as with the specifications provided for by the importer including brand name, model, UV rating, etc.

*Packaging – Check that retail and shipper’s packaging are in accordance with existing regulations and contractual specifications.

Flammability – Check that eyewear is made from non-combustible materials including its attachments, if any. Sunglasses to be imported to the USA must comply with 15 USC 1261~1, 1263 and 16 CFR 1500.44 to address this flammability requirement.

Biocompatibility – Verify that product are made from materials that are non-toxic, non-irritating, and may cause significant allergic reaction to wearer under normal use.

3.We have cooperated accredited testing laboratory offers a wide range of chemical, optical, mechanical and other tests to check the numerous characteristics of your fashion sunglasses, including:

·Anti-abrasion coating, for ISO 12312.1 (ISO 12311)

·Anti-reflective coating, for ISO 12312.1 (ISO 12311)

·Blue-light blocking: ISO 12312.1, EN1836, AS/NZS 1067.1

·Children sunglasses tests: small parts, compression test, drop test, impact test, torque test, tensile test, sharp edge, sharp Point, flexure test (EN 71.1)

·Complete mechanical strength (bridge deformation and filter retention), for ISO 12312.1 and EN1836

·Haze (wide angle scattered light), for ISO12312.1 (ISO 12311)

·Impact resistance, with drop ball, for ANSI Z80.3 and 21 CFR 801.410

·Increased robustness, for EN 1836

·Lens categories, luminous transmittance and mean transmittance, for ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, QB 2457, Japan labeling requirement, etc.

·Lens mechanical strength (minimum robustness), for ISO 12312.1 and EN 1836

·Lens surface quality, for ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, and QB 2457

·Mechanical strength levels 1, 2, 3, for ISO 12312.1 (ISO 12311) and AS/NZS 1067.1

·Nickel release, on complete sunglass frame, for EN 16128, EN 1836, and ISO 12312.1 note

·Optical powers (refractive properties), with a focimeter or the optical-tester method, for ANSI Z80.3 and GB10810.3

·Optical powers (spherical and astigmatic powers), with the telescope method, for ISO 12312.1, EN 1836, AS/NZS 1067.1, etc.

·Other corrosion, color stability and mechanical tests

·Polarizing plane axis, and polarizing ratio and efficiency, for ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, and GB10810.3.

·Prismatic difference (imbalance): ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, and QB 2457

·Resistance to ignition, for ISO 12312.1, EN 1836, AS/NZS 1067.1, etc.

·Resistance to optical radiation (aging test), for ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, etc.

·Scattered light (light diffusion test), for EN 1836 and AS/NZS 1067.1

·Transmittance uniformity (matching between two lenses), for ISO 12312.1, EN 1836, and AS/NZS 1067.1

·Transmittance variation in a single lens, for ISO 12312.1, EN 1836, and AS/NZS 1067.1

·UV/UVA/UVB blocking (UV range properties), for ISO 12312.1, EN 1836, AS/NZS 1067.1, ANSI Z80.3, and GB10810.3.

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