VEVOR Handpan Drum Craftsmanship Guide

Color Matching and Logo Application

General SKUs 3, 5

The body color should match the texture and color of the reference product. The manufacturer has experience with this texture and color. Numbers on the body are applied using gold stickers.

General SKUs 4, 6, 10

Similar to SKUs 3 and 5, the body color should match the reference product's texture and color. Numbers on the body are applied using gold stickers.

Logo Application (SKUs 3-6, 8-11)

The logo application method is a PET hang tag, printed on both sides. The required hang tag size is 75*27mm.

Hang Tag Specifications:

• Size: 75*27mm
• Material: PET environmental material with a fine frosted film.
• Hanging Rope Material: Color should be non-chromatic, and the material must be environmentally friendly.
• Color Requirements: VEVOR Orange (CMYK: M77 Y90 K0, RGB: R248 G93 B24, PANTONE Orange 021C).

Hang Tag Placement:

The hang tag should be placed inside the packaging along with the product. If the hang tag might scratch the product, a plastic separator should be used in between.

Screen Printing Technical Requirements:

1. The surface should be free from obvious dirt, bottoming, ink leakage, blurriness/broken lines, uneven printing thickness, misalignment, or scratches.
2. Printing content, fonts, font sizes, CMYK values (color bars), patterns, and positions must match the sample. Text should not have jagged edges.
3. Adhesion Test: Clean the printed area with pure cotton cloth dipped in anhydrous alcohol (99.5% concentration). After drying, apply 3M600 tape to the printed area. Rub the contact area with a pencil eraser to enhance contact between the tape and the test area. Let it sit for (90±30) seconds. Grip one end of the tape and pull it off quickly in a vertical direction. Repeat this test 5 times in the same location. The printing is considered acceptable if there is no visible peeling.
4. Alcohol Resistance Test: Wrap a dedicated 500g weight with pure cotton cloth dipped in anhydrous alcohol (concentration >99.5%). The testing head area with the cloth should be approximately 1cm². Wipe the sample surface back and forth at a speed of 40-60 times/minute with a stroke of about 20mm for 50 cycles. Judgment: Slight wear and fading of the text are acceptable, provided the text content remains complete and clearly recognizable.
5. Abrasion Resistance Test: Use a dedicated Japanese abrasive eraser (eraser model: LER902K) with a load of 500g. Rub the sample surface back and forth for 50 cycles at a speed of 40-60 times/minute with a stroke of about 20mm. Judgment: Slight wear and fading of the text are acceptable, provided the text content remains complete and clearly recognizable.
6. Must comply with ROHS environmental requirements.

Laser Engraving Technical Requirements:

1. The surface should be free from obvious dirt, bottoming, leakage, blurriness/broken lines, burrs, bubbles, scratches, or perforation.
2. Engraving content, fonts, patterns, and positions must match the sample. Text size should be uniform, and text should not have jagged edges or etching phenomena.
3. Alcohol Resistance Test: Similar to the screen printing alcohol resistance test, using pure cotton cloth dipped in anhydrous alcohol. Judgment: The paint layer should not change color or peel off the base material.

Ink Reference Table for Screen Printing (for reference only, actual execution based on ink master's formulation):

• Ink Types: Oil-based ink, water-based ink, glossy ink, semi-gloss ink, evaporation-drying ink, natural-drying ink, coated paper ink, plastic synthetic paper ink, board paper carton ink.
• Applications: PVC ink, styrene ink, polyethylene ink, acrylic ink, polypropylene, acetate, celluloid, acrylic resin ink.
• Fabric: Water-based ink, oil-based ink, emulsion ink, etc.
• Wood: Water-based ink, oil-based ink.
• Metal: Special inks for aluminum, iron, copper, stainless steel, including evaporation-drying, oxidative polymerization, and two-component reactive inks.
• Circuit Boards: Conductive ink, corrosion-resistant ink, electroplating-resistant, and alkali-resistant ink.
• Ceramics/Glass: Inks for ceramic and glass utensils.
• Leather: Inks for leather.

Self-Inspection by Screen Printing Manufacturer:

• Foreign Matter: Dust or spot-like foreign matter on the coating after screen printing.
• Bottoming: The screen printing is too thin, revealing the base color.
• Ink Leakage: The required screen printing area is not printed.
• Blurriness, Broken Lines: Uneven line and pattern thickness, blurry, or disconnected text lines due to poor screen printing.
• Uneven Printing Thickness: Uneven thickness of the screen-printed layer in dots, lines, or patterns due to improper operation.
• Misalignment: Offset printing position due to inaccurate positioning.
• Poor Adhesion: Insufficient adhesion of the screen-printed coating, removable with 3M-810 tape.
• Pinholes: Pinhole-like small holes visible on the coating surface.
• Scratches: Caused by poor protection after screen printing.
• Discoloration, Stains: Non-screen-printed colors adhering to the screen-printed surface.
• Color Difference: Color deviation compared to the standard color swatch.

Self-Inspection Methods:

1. Tools and Materials: 3M-600 tape, cotton balls, ethanol, force gauge, soft eraser, cotton swabs, etc.
2. Screen Printing Rubbing Resistance Test: Apply 3M-600 tape tightly to the screen-printed surface. Hold one end of the tape and pull upwards quickly at a 45-degree angle to the surface. Repeat 3-4 times in the same location. The screen printing is considered acceptable if it remains intact; otherwise, it is rejected. Simultaneously, rub the surface 3-5 times with a cotton ball dipped in 95% ethanol, applying 5-6N of force. It passes if there is no color fading or change in color depth.
3. Screen Printing Abrasion Resistance Test: Fix the tested part on a force gauge. Rub the screen-printed area back and forth with a soft eraser. The force gauge should be set to (5±1N). One back-and-forth motion counts as one cycle. Test for 950-1000 cycles. After testing, the brightness and color depth of the screen-printed area should remain unchanged, and the screen printing should not be missing any parts.
4. Ethanol Wipe Test: Dip a cotton swab in 95% ethanol solution and wipe the tested surface 3-5 times. Allow to air dry and observe the screen printing. The tested surface should show no change in gloss, no stickiness, or dissolution. If any of these occur, it is considered a significant defect.

Note: Please arrange for samples in advance. After the actual product is photographed and confirmed by the industrial designer, mass production can commence! (If color swatches are mailed, please refer to them).

Note on Font Height for After-Sales Website:

• 1. Sticker/Laser Engraving Font Height: >1.2mm
• 2. Screen Printing Font Height: >2.5mm
• 3. Integrated Injection Embroidery Font Height: >5mm
• 4. Die-casting Font Height: 10mm

Numerical Sticker Placement and Direction

General SKUs 3-6, SKU 10

12-inch 13-note Handpan:

As shown in the figure, use the bottom of the central lotus flower as the horizontal line. The numerical stickers should be placed perpendicular to this horizontal line.

14-inch 15-note Handpan:

As shown in the figure, use the bottom of the central lotus flower as the horizontal line. The numerical stickers should be placed perpendicular to this horizontal line.

Note: The numerical sticker placement and direction described above are applicable to general SKUs 3, 4, 5, 6, and 10 (corresponding to 12-inch and 14-inch drums).