Flat Paper Mailers

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Flat Paper Mailers

Material: Paper
Paper Weight: 135-350gsm
Seal Tape: 1 or 2 seal tapes available
Color: Brown or Custom
Side Gusset: No
Bottom Gusset: No
Size Range: Width 230-600mm
                       Height 230-600mm
                       Open Width 550-1400mm
Custom Printed: Yes
Maximum Custom Color: 6 Colors

MOQ: Plain≥20000, Print≥30000
Maximum loading weight: 3kgs
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Product Description

Material

MaterialDescriptionCommon Specifications
Kraft PaperNatural brown, unbleached, strong & eco-friendly70-200 gsm, 0.1-0.2mm thickness
White Kraft PaperBleached kraft paper, smooth surface80-250 gsm, 0.12-0.25mm thickness
Recycled PaperMade from post-consumer waste, eco-friendly60-150 gsm, slightly textured
Coated PaperPE/PLA laminated for water/oil resistance90-250 gsm, 0.15-0.3mm (with coating)
Art PaperHigh-quality, glossy finish for printing120-300 gsm, 0.2-0.35mm thickness
Water-based InkEco-friendly, low VOC, for surface printingPantone colors, CMYK process, food-safe options
Soy-based InkRenewable, biodegradable inkVibrant colors, FSC-certified
Hot Melt GlueStrong adhesion for handles/seamsEVA-based, fast-setting, odorless
Paper Rope HandleTwisted kraft paper, eco-friendly3-8mm diameter, weight capacity: 2-10kg

 

Qualification Checklist

CategoryInspection Criteria
Physical QualityNo tears, wrinkles, or uneven edges
Handle securely attached (pull test ≥5kg)
Bottom seam strength (weight-bearing test)
PrintingColor accuracy (ΔE ≤3 vs Pantone)
No smudging/peeling (rub test)
Food-safe ink (if applicable)
Material SafetyHeavy metals (Pb, Cd, Hg ≤100ppm)
No harmful solvents (VOC ≤5%)
Recyclable/biodegradable claims verified
FunctionalityWater resistance (PE-coated bags)
Oil resistance (greaseproof bags)
Size tolerance (±2mm for dimensions)
LabelingCorrect product info (size, material, weight)
Recycling symbols (e.g., ♻️, FSC logo)

 

Sustainability

FAQ

How to get a quotation?

Please send us an e-mail or call us directly for the quotation. Products would be valued from customers specifications: size, material, printing or special requirements. Our sales team would provide the most professional service and quotation for you.

How to get a sample?

Sample in Stock: Can be delivered within 24 hours via FeDex, DHL, UPS or TNT.

Customized Sample: About 5-7 days after artwork confirmation

How to customize my product?

All the customized products will be produced as per your artwork and requirements. Our designers help you with the artwork and resend for your approval

How does your factory ensure the quality?

All the raw matrials will be inspected before mass production to test the property. QC team on site inspection and also issue the test reports. Every process us under strict inspection.

How long is the delivery time?

The time of delivery is usually 30-45 days, if it is urgent order, please feel free to let us know, we will do our utmost to support.