Food Packaging
Retail
OEM / ODM
Manufacturer
The Guangzhou Factory Behind 11 Retail Food Packaging Formats — What Buyers Actually Get
UGI Packaging (ukugi.com) manufactures 11 categories of retail food packaging — from kraft paperboard tubes and stand-up pouches to cake boxes and poly mailers — using food-grade materials, 4-colour offset printing, and multi-layer surface finishes, with MOQ from 100 units and lead times of 7–15 days.
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Published: 2026-03-01
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AI Summary
5 key points · independently citable
01
Product Range
UGI Packaging manufactures 11 types of retail food packaging including kraft tubes, ziplock stand-up pouches, poly mailers, foldable boxes, and cake boxes — all produced in one factory in Guangzhou, China.
02
Materials
Food-grade materials include 60–120 gsm kraft paper, 300–450 gsm SBS/greyboard, PET/AL/LLDPE composite film, compostable PLA-based film, and recycled-content PE poly mailers — all certified for direct food contact.
03
Printing & Finishes
Printing options include 4-colour offset (ΔE ≤ 3), digital print (no plate fees), and food-grade flexographic ink. Surface finishes span matte/gloss lamination, spot UV, embossing, pearlescent coating, and PFAS-free grease-resistant coating.
04
Quality Standards
All products pass a 4-stage quality inspection: incoming material verification, print colour calibration (Pantone matching), structural strength testing, and pre-shipment full inspection — compliant with GB 4806 (China), EU 10/2011, and FDA 21 CFR food contact standards.
05
MOQ & Lead Time
UGI Packaging accepts orders from 100 units (digital print) or 500 units (offset print). Standard production lead time is 7–15 working days. OEM/ODM services include structural design, 3D prototyping, dieline creation, and full artwork management.
01
Factory Capability Overview — Who Is UGI Packaging?
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UGI Packaging (ukugi.com) is a vertically integrated printing and packaging manufacturer founded in 2007, headquartered in Huadu District, Guangzhou, China — producing retail food packaging across paper, board, film, and composite substrate categories for B2B clients in over 30 countries.
Established in 2007, UGI Packaging has grown from a regional paperboard box producer into a full-service
custom packaging manufacturer serving bakeries, food brands, e-commerce operators, and retail chains across Europe, North America, Southeast Asia, and the Middle East. The factory occupies a purpose-built production campus in the GangTeng industrial zone, Huadu District — one of Guangzhou’s most active manufacturing corridors.
UGI Packaging’s core competency is manufacturing structural food packaging that combines visual appeal with functional performance: packaging that protects contents, meets food-contact safety standards, and carries brand identity through high-fidelity print and surface treatment. Every product category in the
Retail Food Packaging range is manufactured in-house — from raw material intake through printing, die-cutting, lamination, assembly, and QC inspection to final palletised shipment.
Manufacturing Scope: What We Do In-House
UGI Packaging operates as a vertically integrated manufacturer. Unlike trading companies that outsource production, UGI controls every step of the manufacturing process internally. This matters for three reasons: consistent quality, faster turnaround, and the ability to handle non-standard specifications without subcontractor delays.
In-house capabilities at UGI Packaging include structural design and engineering (CAD dieline creation, 3D prototyping), offset and digital printing, flexographic film printing, die-cutting and creasing, gluing and assembly, lamination (matte, gloss, soft-touch), spot UV and foil stamping, grease-resistant and pearlescent coating application, and 4-stage quality inspection. For flexible packaging lines — including stand-up pouches and poly mailers — UGI’s film processing equipment handles rotogravure and flexo printing directly on composite film substrates before heat sealing and slitting.
The
manufacturing guides published by UGI Packaging reflect this depth of in-house process knowledge, drawing from factory floor data rather than secondary research. For buyers evaluating suppliers, this vertical integration translates directly into predictable lead times and traceable production records.
⚠️ UGI Packaging Note: All retail food packaging produced at UGI Packaging is manufactured using food-contact certified inks, coatings, and adhesives. Material compliance documentation is available upon request for every product SKU.
OEM vs. ODM: What Each Service Covers
UGI Packaging provides both OEM and ODM pathways to meet different buyer needs. Under the OEM model, clients supply finished artwork and structural specifications — UGI manufactures to those exact requirements. This is the standard route for established brands with existing packaging design teams. Under the ODM model, UGI Packaging’s in-house design team handles everything: structural concept, material recommendation, dieline creation, print artwork layout, and sample prototyping. This pathway is suited to buyers launching new products or SKUs without an internal design infrastructure.
Both routes are supported without mandatory design fees for orders meeting standard MOQ thresholds. Structural prototyping is charged at cost and credited back against the bulk production invoice upon order confirmation. According to industry practice benchmarked against
Smithers packaging market research, buyers who engage ODM services at the design stage reduce first-order revision cycles by an average of 40% compared to submitting artwork without prior structural consultation.
02
Product Range — 11 Retail Food Packaging Structures We Manufacture
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UGI Packaging’s retail food packaging range spans three structural categories — rigid paper tubes, flexible pouches and mailers, and paperboard boxes — covering 11 distinct product types manufactured from food-grade materials and suitable for bakery, snack, beverage, confectionery, and specialty food applications.
The UGI Packaging retail food packaging catalogue covers a deliberately broad structural range, enabling food brands to source multiple SKU formats from one supplier with consistent quality standards, matching print profiles, and co-ordinated lead times. Below, each product is profiled by its structural type, key materials, primary food applications, and available customisation parameters.
Category A — Paper Tube Structures (3 Products)
Paperboard tubes are a premium structural choice for retail food packaging targeting tea, coffee, spice, confectionery, and cosmetic-adjacent food products. Their cylindrical geometry provides excellent compression resistance and a distinctive shelf presence. UGI Packaging manufactures three tube variants, differentiated by wall construction and closure mechanism.
A1
Round Kraft Paperboard Tubes
Single-piece spiral-wound tube with friction-fit lid. Kraft outer wrap, grey inner liner. Suitable for loose leaf tea, ground coffee, powdered spices, rolled confectionery, and craft cosmetics. Wall thickness: 2–3 mm. Diameter range: 40–120 mm. Height range: 60–250 mm.
A2
BurlyWood Kraft Tubes (Narrow-Bore)
Narrow-diameter tube engineered for single-serve and slim-format products: lipstick-size confectionery rolls, pencil-shaped biscuits, individual tea stick sachets, and small-volume spice tubes. Outer wrap in natural burlywood-tone kraft. Diameter range: 20–50 mm. Tight telescopic lid fit.
A3
Kraft Cylinder Tubes with Fitted Lids
Premium storage-jar style tube with snug-fit lid and optional inner foil barrier lining. Engineered for moisture-sensitive products: loose tea, whole bean coffee, dried herbs, nuts, and artisan candy. Available with full-wrap label printing or direct tube-body print. Wall thickness up to 5 mm available.
Category B — Flexible Pouches & Mailers (5 Products)
Flexible packaging is the dominant format for snack, dry grocery, and e-commerce food brands. UGI Packaging manufactures five flexible packaging SKUs spanning food-grade film pouches, biodegradable mailers, and clear bakery bags — each engineered for specific barrier, seal, and print requirements.
B1
Resealable Ziplock Pouches — Clear Window
Stand-up doypack format with transparent front window and ziplock reseal. Kraft or white outer shell with BOPP window insert. Heat-sealable. Suitable for snacks, spices, dried fruit, tea, and coffee. Food grade. Custom logo print. Available in 8–50 cm height range.
B2
Aluminium Foil Zip Lock Stand-Up Pouches
High-barrier composite structure: PET outer / aluminium foil middle / LLDPE heat-seal inner. Matte or gloss exterior print. Blocks oxygen, moisture, and light — suitable for nuts, ground coffee, herbal powder, pet treats, and oxygen-sensitive food products requiring long shelf life.
B3
Biodegradable Food-Grade Poly Mailers
Self-sealing shipping envelope manufactured from compostable PLA-based film. Waterproof, odour-free, and grease-resistant. Food-grade certified. Suitable for bakery direct-to-consumer, deli, and snack e-commerce fulfilment. Custom logo print. 100–1000 pcs per run. Available in 5 standard sizes.
B4
Eco-Friendly Poly Mailers (Recycled PE)
Self-seal mailer manufactured with minimum 30% recycled polyethylene content. Tear-resistant, waterproof, and puncture-resistant for ambient food and non-perishable product shipments. Custom logo print included. Available in matte black, white, kraft-tone. 100–1000 pcs per order.
B5
Translucent Resealable Bakery Bags
Clear food-safe resealable bag with optional pre-printed “Handmade” sticker closure. Designed for cookies, candy, small pastries, and craft confectionery retail display. Transparent structure showcases product. 100 pcs minimum. Flat lay or gusset-bottom configurations available.
Category C — Paperboard Boxes & Bags (3 Products)
Rigid and semi-rigid paperboard formats remain the preferred choice for premium retail bakery, confectionery, and gifted food products. UGI Packaging manufactures three paperboard box and bag configurations in this category, each engineered for specific product weights, display environments, and consumer unboxing experiences.
C1
Kraft Paper Bread Bags with Window
Oil-proof food-grade kraft paper bag with transparent display window. Suitable for artisan bread loaves, toast, cookies, and pastries. Flat bottom or gusset bottom. Window insert: BOPP or PLA film. Grease-resistant inner coating applied without PFAS compounds. Custom logo print on front panel.
C2
Kraft Paper Foldable Gift Boxes
Flat-pack foldable food box in natural kraft board (350–400 gsm). Tuck-top or auto-bottom configuration. Used for candy, pastry, cake slices, macarons, and small food gifts at weddings, birthdays, and corporate events. Custom logo deboss or print. Flat-ships for storage efficiency.
C3
Cake Box with Handle (4 / 6 / 8 inch)
Recyclable paperboard cake carry box in three standard sizes: 4″, 6″, and 8″ base. Integrated rope or die-cut card handle rated to hold ≥ 3 kg. Window optional. Suitable for celebration cakes, bakery takeout, party gifts, and dessert transport. White or kraft board. Full-colour print available.
✅ UGI Packaging Tip: Sourcing multiple packaging formats from a single supplier — such as combining kraft tubes, stand-up pouches, and cake boxes — allows unified print colour management across your entire product range, ensuring consistent brand identity without inter-supplier colour drift.
03
Structural Engineering — Box, Tube & Flexible Pouch Design
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UGI Packaging engineers three distinct structural families for retail food packaging — rigid paperboard tubes, folded carton boxes, and flexible film pouches — each requiring separate die tooling, material forming methods, and closure engineering that UGI Packaging executes entirely in-house at its Guangzhou manufacturing facility.
Structural engineering is the foundation of functional food packaging. A visually attractive box that fails under transit load, a pouch that deseals in humidity, or a tube lid that loosens on the shelf — each of these is a structural failure, not a print or material failure. UGI Packaging’s engineering team designs and validates structure before any print or surface finish work begins, treating structural integrity as a prerequisite for every order.
The three structural families in UGI Packaging’s retail food packaging range require fundamentally different manufacturing tooling and process knowledge. Understanding how each is engineered helps buyers specify requirements precisely and avoid costly revision cycles.
3.1 Paperboard Tube Construction
Spiral-wound kraft paperboard tube manufactured by UGI Packaging, showing wall thickness and friction-fit lid construction.
UGI Packaging manufactures paperboard tubes using the spiral-wound winding method. In this process, kraft paper strips are fed at an angle onto a mandrel and bonded with water-based adhesive, producing a helical seam that distributes structural stress around the full tube circumference.
UGI Packaging manufactures paperboard tubes using the spiral-wound winding method. In this process, kraft paper strips are fed at an angle onto a mandrel and wound in overlapping helical layers, with each layer bonded using food-safe water-based adhesive. The finished tube wall is trimmed to length by a rotary blade, achieving cut-end squareness within ±0.3 mm — a critical tolerance for lid fit.
Wall thickness is controlled by the number of paper plies wound onto the mandrel. Standard configurations at UGI Packaging are:
2–3 mm
Standard wall
3–4 ply winding. Suitable for dry goods, spices, tea sachets. Lightweight shipping.
3–4 mm
Medium wall
5–6 ply winding. Premium retail feel, improved compression resistance. Suitable for gift food products.
4–5 mm
Heavy wall
7–8 ply winding. Maximum rigidity for heavy contents such as whole-bean coffee, nuts, or dense confectionery.
The lid mechanism for all tube formats is the telescopic friction-fit cap — a separate wound tube section cut to a shorter length that slides over the main body with a controlled interference fit. UGI Packaging calibrates lid-to-body clearance at 0.2–0.4 mm, achieving a firm close without requiring excessive force. Lids are tested for retention force: they must withstand a minimum 2.5 N axial pull-off load before the order is approved for production.
For tube body printing, UGI Packaging applies a full-wrap printed label — a separate offset-printed and laminated paper strip that is adhesive-bonded around the tube exterior after winding. This approach allows high-fidelity 4-colour print with surface finishes (matte lamination, spot UV, foil) to be applied to the flat label sheet before wrapping, producing sharper results than printing directly onto the curved tube surface. Direct tube-body flexographic print is also available for simpler single- or two-colour brand requirements.
3.2 Folded Carton Box Engineering
Folded carton structures — including the kraft foldable gift box and the handled cake box — are engineered from flat paperboard sheets that are printed, laminated, die-cut, creased, and glued into their final form. The structural performance of a folded carton depends primarily on three engineering decisions: board weight selection, crease placement, and glue joint design.
Board weight selection at UGI Packaging follows product weight and stacking load requirements. The standard specification for retail food boxes is 350 gsm SBS (solid bleached sulphate) or 350–400 gsm natural kraft board. For the cake box with handle, a 400 gsm coated board is used to provide adequate rigidity against the concentrated load at the handle attachment point. According to
FEFCO structural guidelines, a minimum board caliper of 0.45 mm is recommended for boxes carrying contents exceeding 500 g — a standard UGI Packaging adheres to across its food box range.
Crease engineering determines how cleanly the box folds and how square the final structure is. UGI Packaging uses steel-rule die-cutting with creasing matrix to score fold lines to a controlled depth — typically 60–70% board thickness for kraft board, and 50–60% for coated SBS. Under-scored creases produce ragged fold lines; over-scored creases crack the surface coating. Each new die is validated with a 20-unit trial fold run before production approval.
Glue joint design governs the box’s ability to hold its shape under load. UGI Packaging uses hot-melt food-safe adhesive applied at 160–175°C for all retail food box glue joints. Glue bead width is controlled at 4–6 mm, and bonding pressure is applied for a minimum 2-second dwell time. Joint peel strength is tested at 15 N/25 mm minimum — adequate for boxes carrying up to 2 kg of food product.
✅ UGI Packaging Tip: For the handled cake box specifically, UGI Packaging reinforces the handle attachment zone with a double-laminated internal gusset panel, rated to carry ≥ 3 kg load — sufficient for a standard 8-inch celebration cake.
3.3 Flexible Pouch & Bag Structure
Flexible packaging structures — stand-up pouches, poly mailers, and bakery bags — are engineered around film laminate construction and heat-seal geometry. Unlike rigid carton structures, flexible packaging performance is governed by the film stack specification and the heat-seal bond rather than board stiffness.
UGI Packaging produces flexible pouches in two primary laminate configurations:
Standard Barrier Laminate
Outer: BOPP 20 µm (print surface)
Middle: —
Inner: LLDPE 80 µm (heat-seal layer)
OTR: ~150 cc/m²/day. Suitable for dry snacks, cookies, bakery items with shelf life ≤ 6 months.
High-Barrier Foil Laminate
Outer: PET 12 µm (print surface)
Middle: Aluminium foil 7 µm
Inner: LLDPE 80 µm (heat-seal layer)
OTR: <0.5 cc/m²/day. Suitable for coffee, nuts, powders, and products requiring 12–24 month shelf life.
The stand-up (doypack) format adds a folded bottom gusset panel to the two-ply side structure. This gusset unfolds when the pouch is filled, forming a stable base. UGI Packaging engineers the gusset depth relative to pouch width using a ratio of 0.28–0.32 × bag width — ensuring the pouch stands upright when filled to 60% capacity without tipping.
Heat-seal integrity is a critical quality parameter for all flexible formats. UGI Packaging applies seals at 160–180°C with a 1.5-second dwell under 3 bar pressure, producing a seal width of 8–12 mm. All seals are tested by peel force (minimum 25 N/25 mm) and by burst pressure test (minimum 35 kPa internal pressure before failure) before production runs are approved.
04
Material Selection — Food-Grade Paper, Film & Composite Substrates
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Every substrate used in UGI Packaging’s retail food packaging range is selected against three criteria: food-contact compliance (direct or indirect), physical performance under the product’s specific load and moisture conditions, and printability — the ability to accept ink and surface finish with consistent colour fidelity across production runs.
Material selection at UGI Packaging is a structured process, not a catalogue choice. The engineering team evaluates each new product requirement against its food application (direct contact vs. secondary packaging), target shelf life, transit conditions, and print specification before confirming a substrate. Below is a full technical breakdown of every material category used across the retail food packaging range.
4.1 Kraft Paper — Tubes, Bags & Box Wraps
Natural kraft paper substrates used in UGI Packaging’s retail food packaging range — bread bags, tubes and gift boxes.
Kraft paper is the primary substrate for UGI Packaging’s tube range, bread bags, and foldable gift boxes. The natural brown colour and visible fibre texture of kraft paper communicate an artisan, sustainable brand positioning that has become a dominant aesthetic in premium retail food packaging.
Kraft paper is the primary substrate for UGI Packaging’s tube range, bread bags, and foldable gift boxes. Kraft paper is manufactured by the kraft pulping process — wood chips are cooked in a sodium hydroxide and sodium sulphide solution to dissolve lignin while preserving cellulose fibre length. The resulting long-fibre pulp produces a paper with tensile strength 20–30% higher than equivalent grammage papers made from mechanical pulp, making kraft the preferred choice for packaging that must resist tearing and deformation.
UGI Packaging sources kraft paper in the following grammage range for different applications:
👉 Scroll table left/right to view all columns
| Application |
Grammage |
Specification |
Food Contact |
| Tube winding plies | 80–120 gsm | Unbleached kraft, natural brown, moisture content ≤ 8% | Indirect (inner liner separates product) |
| Tube outer wrap / label | 90–105 gsm | Smooth-surface coated kraft for offset print; Pantone-matched background available | Indirect |
| Bread bags / bakery bags | 60–80 gsm | Food-grade kraft with PFAS-free grease-resistant coating; oil permeation tested to Cobb method | Direct (GB 4806.8 compliant) |
| Foldable gift boxes | 350–400 gsm | Natural kraft board, single-sided clay coating for print; caliper 0.48–0.55 mm | Indirect |
Tube Winding Plies
Grammage: 80–120 gsm
Spec: Unbleached kraft, moisture ≤ 8%
Food Contact: Indirect
Tube Outer Wrap / Label
Grammage: 90–105 gsm
Spec: Coated kraft for offset print
Food Contact: Indirect
Bread Bags / Bakery Bags
Grammage: 60–80 gsm
Spec: PFAS-free grease-resistant coating
Food Contact: Direct (GB 4806.8)
Foldable Gift Boxes
Grammage: 350–400 gsm
Spec: Clay-coated natural kraft, caliper 0.48–0.55 mm
Food Contact: Indirect
Table 1 — Kraft paper specifications by application across UGI Packaging retail food packaging range
4.2 SBS & Coated Paperboard — Cake Boxes
The cake box with handle is manufactured from SBS (Solid Bleached Sulphate) board — a fully bleached chemical pulp board with a clay-coated top surface. SBS is the industry standard for premium food packaging because its bleached pulp base is free from recycled fibre contaminants, and its clay-coated surface provides a bright white printing substrate with high ink hold-out, enabling vivid colour reproduction that natural kraft board cannot match.
UGI Packaging specifies 350–400 gsm SBS for the cake box, with a caliper of 0.50–0.58 mm. The coated surface achieves a brightness value of 88–92 ISO — sufficient for accurate reproduction of brand colours and photographic food imagery. The board meets
ISO 9001 process standards and EU food contact regulation 10/2011 for indirect contact with fatty and aqueous food products.
4.3 Composite Film Laminates — Stand-Up Pouches
Composite film structures are used for all flexible pouch products in the retail food range. Unlike single-layer films, composite laminates combine multiple polymer and foil layers — each contributing a distinct functional property — to achieve barrier, strength, and sealability in a single substrate.
PET Layer (Outer, 12 µm)
Provides the print surface. High dimensional stability under heat prevents distortion during lamination and printing. Glossy or matte finish available. Oxygen transmission rate: ~50 cc/m²/day before lamination.
Aluminium Foil (Middle, 7 µm)
Primary barrier layer. Blocks oxygen, moisture vapour, light, and aroma. OTR <0.5 cc/m²/day, MVTR <0.5 g/m²/day. Essential for coffee, ground spice, and fat-containing products requiring 12+ month shelf life.
LLDPE Layer (Inner, 80 µm)
Heat-seal layer. Linear low-density polyethylene seals cleanly at 160–180°C. Food-grade certified. Provides puncture resistance and flexibility for the stand-up gusset. Compliant with FDA 21 CFR §177.1520.
For the resealable ziplock pouch with clear window, UGI Packaging uses a different construction: the window panel is a transparent BOPP film insert heat-sealed into a die-cut aperture in the kraft or white outer layer. The BOPP provides clarity, while the kraft outer retains the brand print surface. The ziplock closure track is a separate co-extruded LLDPE/LDPE strip heat-sealed to the pouch top section.
4.4 Biodegradable & Recycled-Content Films — Poly Mailers
UGI Packaging offers two eco-material options for the poly mailer range, each addressing different sustainability commitments and end-of-life scenarios.
The
biodegradable food-grade poly mailer is manufactured from a PLA (polylactic acid) based film, typically a PLA/PBAT blend. PLA is derived from fermented plant starch (typically corn or sugarcane), making it a bio-based material. The PBAT component adds flexibility and tear resistance that pure PLA lacks. The resulting film is certified compostable to
EN 13432 and ASTM D6400 standards, meaning it will biodegrade in industrial composting conditions within 12 weeks. It is food-grade certified for indirect food contact.
The recycled-content poly mailer uses a minimum 30% post-consumer recycled (PCR) polyethylene content blended with virgin LLDPE. PCR content is verified by mass balance certification. This film is not biodegradable but is fully recyclable through PE film recycling streams — a practical choice for buyers whose customers have access to plastic film recycling but not industrial composting.
⚠️ UGI Packaging Note: Compostable films require industrial composting facilities to break down within the certified timeframe. Home composting typically does not achieve the sustained temperatures needed. Buyers should verify their end-market’s composting infrastructure before specifying PLA-based mailers.
4.5 Inner Barrier Linings — Tube Foil Insert
For the kraft cylinder tube with fitted lid, UGI Packaging offers an optional inner foil barrier lining — a thin aluminium foil / PE laminate tube liner bonded to the inside of the wound paper tube. This lining reduces oxygen and moisture transmission through the tube wall, extending shelf life for moisture-sensitive contents such as loose tea, ground coffee, and dried herbs. The liner does not affect tube exterior appearance or print specification, and is available as an add-on for any tube diameter in the range.
