Case

Target Audience:​ DTC brands with independent websites targeting North American and European markets (primarily e-commerce shipping, with Amazon channels as a secondary focus) Core Needs:​ Replace traditional poly mailers/cheap cartons, enhance unboxing experience, reduce logistics damage, achieve unified brand visuals. 1.Project Background We connected with a U.S.-based DTC brand in the home goods category. They had been running their independent website for over two years and had built a loyal following on Instagram and TikTok. Their products mainly included scented candles, bath salts, and dried flower bouquets—lifestyle-oriented items with an average order value (AOV) between 50and80. When the brand approached us, they were debating one thing: whether to switch from their usual poly mailers to mailer boxes. Honestly, this hesitation is completely normal. They had been using standard PE poly mailers—lightweight and convenient. But the problems lay right there: First, the brand image was too weak. Customers received a flimsy plastic bag with a few candles stuffed inside—zero sense of ritual in the unboxing process. Searching their brand name on TikTok, you’d hardly find any unboxing videos. It wasn’t that they were hard to film; people simply didn’t want to. Second, the transportation damage rate was relatively high. Scented candles are bottled in glass. The poly mailers only had a thin layer of bubble wrap inside, so a slightly rough sortation would easily break the bottles. In the customer service backend, “damaged” and “leaking” made up a significant portion of return reasons. During peak sales events, the after-sales team often worked overtime to handle them. Third, poly mailers aren’t eco-friendly. Consumers in Europe and North America are highly sensitive to environmental issues, especially in the European market. Using single-use plastic bags as outer packaging while writing “We care about the Earth” on the brand’s website makes consumers feel it’s just empty talk. 2.Hanlong’s Solution Hanlong didn’t push products right away. Instead, we asked the client to film their current shipping process and send it over. After reviewing it, we did a simple analysis: the high return rate for this category wasn’t due to product quality, but rather “choosing the wrong packaging.” Based on this assessment, we designed a packaging upgrade solution centered around corrugated mailer boxes for the client. Self-locking bottom structure, say goodbye to tape sealing One of the biggest advantages of mailer boxes is the self-locking bottom design: the bottom locks automatically without tape, and the lid features a double-tab tuck structure, making the sealing process much more efficient than traditional RSC cartons. For DTC brands with high shipping volumes, this means packers press the tape cutter hundreds fewer times each day, leading to significant labor cost savings over time. Based on the client’s main SKUs (scented candle + bath salt sets), we customized three sizes of mailer boxes, perfectly matching over 80% of their orders. The boxes fold flat to a thin profile, saving warehouse space. Material and compression resistance: 3-ply or 5-ply, choose based on the scenario Not all products require 5-ply corrugated. We helped the client establish a simple classification: Single scented candle (light goods):​ Use a 3-ply E-flute mailer box. The bursting strength is sufficient for daily shipping, keeping costs within a reasonable range. Candle + bath salt set (heavy goods):​ Upgrade to 5-ply BC-flute. The Edge Crush Test (ECT) is calculated for stacking up to 3 layers, ensuring the bottom boxes won’t collapse. Bulk replenishment to overseas warehouses:​ Use heavy-duty RSC cartons, clearly dividing responsibilities with mailer boxes, each managing its own scenario. Brand Visual Customization The surface area of a mailer box is much larger than a poly mailer, making it a natural “mobile billboard.” We helped the client with spot color printing, placing the brand’s primary color and logo on the front of the box, and a short brand story with a social media QR code on the back. The surface was treated with matte lamination—smooth to the touch and water-resistant. This is crucial; if a scented candle leaks, it won’t make a mess of the box. Eco-certifications All mailer boxes use FSC-certified paper and soy-based ink printing, fully recyclable and biodegradable. We printed a small recycling logo and a message inside the box: “This box has a second life—please recycle.” It may seem like a small detail, but for consumers in Europe and North America, this kind of “environmental sincerity” adds real value. 3.Delivery Results Transportation damage rate dropped significantly, with returns due to “damage/leakage” noticeably reduced. Unboxing experience ratings improved, and customers began spontaneously filming unboxing videos on TikTok and Instagram. After unifying the brand visuals, customers’ perception of product value increased, and the repurchase rate grew. Complete eco-certifications, aligning with the sustainable packaging trend in European and American markets. Standardized box types reduced the variety of packaging materials, lowering warehouse management costs. 4.Hanlong Process Parameters Snapshot Item Specifications Box Type​ Corrugated Mailer Box / Self-locking Bottom Structure Base Material​ 3-ply E-flute / 5-ply BC-flute (selected based on product weight) Paper​ FSC-certified White Cardboard / Kraft Paper Printing​ Spot Color Printing / Soy-based Ink / Matte Lamination Surface Finish​ Matte / Soft-touch Lamination / Foil Stamping (optional) Structural Design​ Self-locking Bottom / Double-tab Tuck Cover / Custom Sizes Function​ Leak-proof Liner / Recycling Logo Printing / FBA Compatible Compliance​ FSC / FDA (Food Contact Grade, optional) 5.Hanlong Engineer’s Tip Many e-commerce brands have a habit: after buying mailer boxes, they find the size is slightly off, so they just stuff in some fillers to make do. As a result, a box that’s too large looks “empty,” and the products rattle around inside, easily getting damaged during shipping. If the box is too small, you have to force items in, and when unboxing, customers end up wrestling with the box. Hanlong’s approach is: measure the product first, then decide on the box. We provide the most suitable box type recommendation based on the product’s actual dimensions (L x W x H), achieving a “snug fit without being a struggle.” Additionally, many brands choose between 3-ply and 5-ply corrugated based on gut feeling. Actually, there’s a simple rule of thumb: for single products under 1 kg, 3-ply E-flute is generally sufficient; for items over 1 kg, or sets containing multiple fragile items, 5-ply BC-flute is recommended. Of course, the most reliable method is to have the packaging manufacturer conduct a drop test—drop the box with the product inside from a height of over one meter and see if anything happens.   Ready to give your e-commerce shipments a mailer box packaging that delivers an “unboxing surprise”?

Client Profile:Beauty and skincare brands serving North America and European markets (primarily DTC independent sites, with Amazon channels as a secondary focus) Core Requirements:Leak and breakage prevention, brand visual presentation, compliance and market access, enhanced unboxing ritual 1. Project Background We were approached by a skincare brand that had been operating in the U.S. market for over three years. Their flagship product line is a three-piece gift set containing serum, face cream, and toner, priced in the near-$100 range and positioned as an affordable luxury. On paper, the numbers looked decent. But when the brand reached out to us, they were grappling with three major pain points: First, an unacceptably high rate of shipping damage.Both the serum and toner are packaged in glass bottles, and during transit they frequently suffered cracked bottles and leaked product. According to their customer service team, “damaged packaging” and “liquid leakage soiling the parcel” together accounted for nearly 30% of all return reasons. After every major sales event, the support team would be buried in refund requests and negative reviews for days. Second, a thoroughly underwhelming unboxing experience.Customers received a plain five-layer corrugated carton stuffed with a few haphazard wraps of bubble film. Products rattled around loose inside, and there wasn’t even a thank-you card. One returning customer wrote in a review: “Opening it felt like receiving a return from the shipping company.” For a brand selling a nearly $100 gift set, that kind of feedback is devastating. Third, incomplete compliance documentation.Their previous supplier — a small domestic factory — could not provide FSC certification or FDA food-contact material reports. Shipments were routinely held up at U.S. Customs for days, delaying delivery timelines and dragging down store ratings. 2. Hanlong’s Solution Rather than rushing to quote, Hanlong asked the client to ship a product sample set to our facility so we could study their entire storage, packing, and shipping workflow. Based on this hands-on product and packaging assessment, we developed a comprehensive upgrade plan covering every layer of the package. a. Leak-Proof Sealing Structure For liquid products like serums and toners, leakage is the biggest headache. We designed individual internal compartments within the outer box — every bottle gets its own “assigned seat,” eliminating collision and tipping during transit. For the face cream jar, the inner tray features a micro-recessed base. In the unlikely event of a leak, fluid is caught in the recess and prevented from seeping into the outer carton. This design added only a few cents per unit in cost, but it saved the client a substantial amount in after-sales expenses. b. Compression and Shock Resistance We subjected the packaging to free-drop tests from over one meter in height, repeated five to six times consecutively. Internal products showed no breakage or leakage. Key design elements included: EVA inner tray:High-density EVA die-cut inserts, precision-molded to match bottle contours. Products fit snugly with zero movement once placed inside. Outer carton board:Five-layer corrugated high-rigidity board that maintains structural integrity under a three-layer stack load. Corner protectors:Reinforced corner guards on all four corners prevent corner-collapse under stacking pressure, which is typically the first point of failure in standard cartons. c. Unboxing Ritual This was the aspect the brand valued most. We completely redesigned the unboxing sequence, transforming the act of opening a parcel from a chore into an experience: The outer layer is a flip-top magnetic closure rigid box with a soft-touch matte laminate finish — it feels silky and refined to the touch. The box front features the logo in matte silver foil stamping, with a thin gold foil accent line along the side. The moment the lid opens, the customer is greeted by a sheet of translucent glassine paper printed with the brand’s slogan. Lifting it reveals the products arranged in perfect order beneath. Beneath each product sits a small card detailing ingredients and usage tips. These layered details prompt customers to snap photos and post them on Instagram — essentially free content marketing for the DTC brand. d. Unified Brand Visual Identity From the Pantone color of the gift box (custom spot color locked to the client’s brand primary), to the grammage of the inner liner paper, to the material and print finish of the thank-you cards — we maintained full control over every touchpoint to ensure consistent brand tonality. Previously, the client had complained that packaging colors varied between batches, sometimes darker, sometimes lighter, making consumers feel “this doesn’t feel like a premium brand.” This time, we locked in Pantone color codes across the board, matching paper, ribbon, and cards under a standardized light source. e. Compliance and Market Access All packaging materials passed FDA food-contact certification (for inner tray components in direct contact with products) and FSC forest certification, among others. This ensured shipments cleared U.S. and EU customs without delays or holds due to packaging compliance issues. 3. Results Delivered Shipping damage rate dropped from over 10% to single digits; returns caused by “leakage” were nearly eliminated. Unboxing experience ratings (based on customer reviews) rose to 4 stars and above, with multiple positive reviews mentioning “the packaging is so beautiful I can’t bear to throw it away.” After visual unification, the product’s pricing power strengthened — the average order value of gift set bundles increased by nearly 20%. Complete compliance documentation enabled zero-delay customs clearance, facilitating smooth market entry into both the U.S. and EU. 4. Notes from Hanlong Engineers Many beauty brands operate under a misconception: that heavier packaging feels more premium. In reality, if a 200ml serum bottle is housed in packaging that weighs more than the product itself, not only do freight costs spike (due to volumetric weight), but consumers may form a negative impression of “excessive packaging.” Hanlong’s approach is “precision matching” — based on bottle dimensions, weight, and liquid volume, we calculate the optimal packaging size. Whether to use EVA or molded pulp for inner trays, three-layer or five-layer corrugated for outer cartons — every decision is backed by data, never made on a hunch. There is another easily overlooked detail: the paper grammage of thank-you cards and instruction sheets. Many brands use 80g thin paper that feels like a flyer. We recommend at least 200g cotton paper or specialty paper — the tactile difference is night and day. Don’t underestimate the impact of a few cents per unit; it directly shapes how consumers perceive your product’s value. Ready to give your beauty products packaging that delivers a “stunning from the first unboxing” experience?

Client: European contemporary fine jewelry brand Core Needs: Supply chain integration, compliance for market entry, improved brand texture & premium feel 1. Project Background We partnered with an established jewelry brand in the European market. As the brand scaled, its decentralized packaging supply chain (boxes, inserts, ribbons sourced separately) hit bottlenecks: Inconsistent quality control Frequent color deviations High logistics damage rates The brand needed a Chinese factory that understood overseas aesthetics and could provide full compliance documentation. 2. Hanlong’s Solution We delivered a total packaging solution, not just box production. Visual Identity Unification To solve color deviations, we strictly fixed Pantone colors.All elements — outer box paper, ribbon, thank-you cards — were matched under standardized light sources to ensure consistent brand VI. Insert Upgrade Replaced low-quality flocking (shedding easily) with high-density paper trays.This eliminated complaints about lint sticking to jewelry, while precision slots secured rings and necklaces firmly in place. Full Set Accessories One-stop supply of ribbons, thank-you cards, and sleeves.We specially developed double-sided ribbon with inner core, solving the common problem of crushed bows during shipping. Full Compliance Support For EU & US export, we provided complete FSC certification and SGS environmental test reports, ensuring no customs delays due to non-compliant packaging. 3. Outcomes Delivered Simplified supply chain: no more multi-supplier coordination → greatly improved purchasing efficiency Packaging upgraded from “basic online style” to “high-end department store quality”, supporting brand price increases Full compliance enabled smooth entry into US and European retail channels Hanlong Engineer Tip Many overseas brands do not know a common factory trick: boxes may look thick but use low-density soft gray board. Hanlong insists on high-density gray board — slightly heavier and more costly, but the box stands firmly and feels solid, like a piece of stone. This is the basic standard for a luxury brand. Ready to give your brand packaging this kind of premium, luxury feel?

  Client: Fast fashion apparel brand targeting Europe and the U.S. Core Needs: Reduce logistics damage, optimize warehouse space, improve unboxing experience 1. Project Background We partnered with a fast-growing fashion brand whose main markets are the U.S. and the U.K. As SKUs expanded, the brand faced typical growing pains in logistics: High return rates Excessive packaging waste and overstocked consumables The brand realized the issue was not the clothing, but the wrong boxes.   2. Hanlong’s Solution Instead of recommending expensive options, we designed two parallel packaging systems based on real shipping scenarios: Scenario A: Direct-to-Consumer (D2C) Shipping Solution: High-strength mailer boxes Pain points solved: Replaced tape-heavy cartons prone to tearing; self-locking bottom + double-lock lid for tape-free sealing. Material: High-rigidity corrugated paper — thin but extremely stiff, maintaining shape even with hoodies or jeans. Scenario B: B2B Overseas Warehouse Restocking Solution: Heavy-duty RSC cartons Pain points solved: Supports 3+ layer stacking; double-corrugated structure with precise ECT (Edge Crush Test) to avoid bottom-box collapse. Optimization: H-shaped taping guidelines for standardized, efficient packing at overseas warehouses. Supply Chain Integration (Turnkey Service) We also provided: Water-resistant courier bags (for T-shirts & light goods) Corrugated cushioning paper Most importantly, we optimized box proportions based on core sizes (S/M/L), reducing box types from 7 to 3 standardized sizes and cutting warehouse management costs by 20%. 3. Outcomes Delivered Lower return rate: Sturdier mailer boxes reduced damage-related returns by 15%. Cost savings: Standardized boxes cut packaging inventory; tape-free design saved thousands of dollars yearly in tape and labor. Eco-compliance: FSC-certified recycled paper meets EU mandatory sustainable packaging rules, supporting the brand’s public sustainability commitments. Hanlong Engineer Tip Many apparel brands overuse large boxes + bubble wrap for small items, wasting freight (dimensional weight) and hurting their eco-image. Hanlong’s rule: Right-sized box for each garment. We calculate the minimum ideal volume based on clothing thickness and quantity to save freight and elevate perceived quality. Ready to optimize your apparel logistics packaging and build a more efficient supply chain?  

A client in the bakery packaging industry had been working with a long-term supplier for custom doughnut food boxes. However, over time, the supplier’s production speed slowed significantly, and quality inconsistencies emerged, causing delays and frustration.The client decided to seek a new supplier to ensure timely delivery and consistent quality for their expanding business.