BOPP SILK SCREEN BAGS

Silk Screen Printing Process

This is the most important part of the BOPP Silk Screen Bag manufacturing process.

• STEP 1 — Artwork Preparation

The client’s logo and design are converted into a suitable printing artwork.

The artwork can contain:

1. Company logo
2. Brand name
3. Tagline
4. Contact information
5. Product information
6. Social media details
7. Decorative graphics
8. QR code

Before production, the artwork and printing details are finalized.

• STEP 2 — Screen Preparation

A silk screen/mesh screen is prepared according to the artwork.

The areas that need to receive ink remain open while the unwanted areas are blocked.

For multiple colors, separate screens may be required for each color.

Example:
A 2-color logo → generally requires two printing screens.

• STEP 3 — Ink & Color Selection

The required ink color is selected according to the approved artwork.

Common choices include:

1. Black
2. White
3. Red
4. Blue
5. Green
6. Yellow
7. Custom brand colors

For accurate branding, the desired color reference can be provided by the client.

• STEP 4 — Screen Printing

The prepared screen is positioned over the bag.

Ink is then pushed across the screen using a squeegee, transferring the design onto the bag surface.

The result is a direct, bold print that clearly displays the brand.

For multi-color designs, the bag goes through the required printing stages for each color.

• STEP 5 — Drying & Setting

After printing, the ink needs to dry and set properly.

The bags are handled carefully during this stage to avoid:

1. Smudging
2. Ink transfer
3. Uneven printing
4. Scratches
5. Design distortion

Proper drying helps achieve a clean and durable print.

• STEP 6 — Cutting & Stitching

The printed material is cut according to the approved dimensions.

The panels are then joined and stitched to create the final bag structure.

Depending on the design, this may include:

1. Side stitching
2. Bottom stitching
3. Gusset formation
4. Top folding
5. Reinforcement stitching

• STEP 7 — Handle Attachment

Handles are attached according to the required design.

Possible handle options include:

1. PP webbing handles
2. Loop handles
3. Soft handles
4. Reinforced handles
5. Custom-color handles

The handle attachment points are reinforced to improve carrying strength.