Postal / Bubble Lined Mailers / Arofol (Standard)

Postal / Bubble Lined Mailers / Arofol (Standard)

Arofol (Standard) bubble lined mailers are lightweight postal bags designed to protect items in transit by combining a smooth outer envelope with an internal bubble cushioning layer. They are commonly used for shipping small, non-fragile-to-moderately-fragile goods where you want impact protection without the bulk of a box. This collection includes a full run of standard numbered sizes (No1 through No10), making it easier to match the mailer to the item and reduce wasted space, postage cost, and movement inside the pack.

Arofol (Standard) Bubble Lined Mailers — Helpful Guide

Choosing the right bubble lined mailer is mostly about three things: (1) the usable internal size, (2) the thickness/rigidity of what you’re sending, and (3) whether you need extra room for inserts, paperwork, or a secondary wrap. Standard numbered Arofol sizes are widely used across the industry, and the numbering helps you quickly step up or down when your product range changes.

What’s in this category (standard numbered sizes)

The products in this collection are the standard Arofol bubble lined mailer sizes:

• No1 - Arofol Std. Bags — compact padded mailer for small accessories and parts.
• No2 - Arofol Std. Bags — small padded mailer suited to slightly larger items and folded documents.
• No3 - Arofol Std. Bags — versatile size for small books, media, and boxed accessories.
• No4 - Arofol Std. Bags — mid-size mailer for thicker items that still ship well as a large letter/flat parcel in many carrier systems.
• No5 - Arofol Std. Bags — popular general-purpose padded mailer for mixed small goods.
• No6 - Arofol Std. Bags — longer format for items that need extra length without moving to a box.
• No7 - Arofol Std. Bags — larger padded mailer for bundled items, apparel, or multiple components.
• No8 - Arofol Std. Bags — roomy option for larger soft goods and multi-item orders.
• No9 - Arofol Std. Bags — large padded mailer for bigger bundles and oversized items that still benefit from cushioning.
• No10 - Arofol Std. Bags — the largest standard size in this range for bulky but compressible shipments.

Typical internal size guide (industry-standard numbering)

Across many packaging specifications, the standard Arofol numbering is commonly associated with the following approximate internal dimensions (width × height). Always allow extra room for thickness and for the seal area:

• No1: approx. 100 × 165 mm
• No2: approx. 120 × 215 mm
• No3: approx. 150 × 215 mm
• No4: approx. 180 × 265 mm
• No5: approx. 220 × 265 mm
• No6: approx. 220 × 340 mm
• No7: approx. 240 × 340 mm
• No8: approx. 270 × 360 mm
• No9: approx. 300 × 440 mm
• No10: approx. 350 × 470 mm

Note: some specifications list external dimensions or include the flap; internal usable space is what matters for fit. If your item is rigid (e.g., a boxed product), size up to avoid corner stress and to keep the seal from being forced open.

How bubble lined mailers protect your shipment

• Impact cushioning: the bubble layer absorbs knocks and vibration during sorting and transport.
• Surface protection: the inner lining helps reduce scuffing on finished goods compared with plain paper envelopes.
• Low weight: padded mailers typically add less weight than corrugated cartons plus void fill.
• Fast packing: insert, remove excess air, seal, and label—ideal for repeatable workflows.

Case Study: Reducing damage and postage by right-sizing padded mailers

A small parts distributor was shipping mixed orders (cables, adapters, small boxed components) using one “catch-all” padded mailer size. The result was inconsistent fit: small orders rattled around, while larger orders were forced into the seal area. By mapping their top 20 SKUs to three standard sizes—No2 for compact accessories, No4 for small boxed items, and No6 for longer components—they reduced movement inside the pack and avoided overstuffing. The packing team also standardized a simple rule: if the item touches the seal line when inserted, move up one size. This improved consistency, reduced rework, and helped keep shipments within carrier size bands.

How to choose the correct Arofol (Standard) bubble lined mailer

1) Measure the item the way it will ship

Measure the maximum width, maximum height/length, and thickness of the packed item (including any retail box, protective sleeve, or paperwork). For multi-item orders, measure the bundle as it will be stacked. Bubble mailers are flexible, but forcing a rigid item into a tight mailer can stress seams and corners.

2) Allow clearance for thickness and the seal

As thickness increases, usable width effectively decreases because the mailer must wrap around the item. As a practical approach, add clearance for corners and leave space so the adhesive flap can close without tension. If you routinely ship rigid items, consider stepping up one size compared with a soft item of the same face dimensions.

3) Match the mailer to the risk profile of the product

• Low risk (soft goods): textiles, soft accessories, and non-fragile items often fit well in mid-to-large sizes such as No7 to No10, depending on folded size.
• Medium risk (boxed items): small cartons, cosmetics, electronics accessories, and kits often benefit from a snug-but-not-tight fit in sizes like No3 to No6.
• Higher risk (sharp corners/heavy items): if corners are sharp or weight is high, consider additional protection (corner guards, secondary wrap) or moving to a box. Bubble mailers cushion impacts but are not a substitute for rigid packaging when puncture risk is high.

4) Consider presentation and labeling

Leave enough flat area for labels and barcodes to adhere smoothly. Overfilled mailers create wrinkles that can reduce label adhesion and scanning reliability. If you use packing slips, choose a size that allows the slip to sit flat without folding into the seal area.

Packing tips for consistent results

• Remove excess air: gently press out trapped air before sealing to reduce bulk and improve label application.
• Protect corners: for rigid items, add a thin wrap or corner protection to reduce corner wear and punctures.
• Keep the seal clean: dust and oils can reduce adhesive performance; ensure the flap area is free of debris.
• Don’t overstuff: if the flap must be pulled tight to close, move up to the next size.
• Use a consistent orientation: insert items the same way each time to reduce training time and packing errors.

Common use cases by size (practical examples)

Exact fit depends on thickness and whether the item is rigid or compressible, but these examples help with quick selection:

• Smaller sizes (No1–No3): small accessories, spare parts, jewelry boxes, compact media, and thin booklets.
• Mid sizes (No4–No6): thicker books, small boxed goods, bundled accessories, and longer components.
• Larger sizes (No7–No10): multi-item orders, folded apparel, larger soft goods, and bulky but lightweight items.

Storage, handling, and sustainability considerations

Store bubble lined mailers in a clean, dry area away from direct sunlight and heat sources to help maintain material performance and adhesive reliability. For operations aiming to reduce waste, right-sizing is one of the simplest improvements: selecting the smallest mailer that closes comfortably reduces material use and can lower dimensional shipping impacts. Where required, separate materials according to local recycling guidance and your facility’s waste streams.

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