01
Spraying Process
Automated spray lines apply uniform matte, gradient, or glossy color coatings to glass jars and diffuser bottles according to Pantone specifications.
Factory Capabilities & OEM Workflow
Manufacturing Process & Quality Control
Shanghai Qusden Household Products Co., Ltd. operates state-of-the-art production lines, automated liquid filling, vessel decorating, and rigorous QA testing for global buyers.
Precision Craftsmanship
11-Step Full-Cycle Manufacturing Process
From custom vessel surface finish to box forming and export packaging, Shanghai Qusden Household Products Co., Ltd. controls every manufacturing stage in-house to guarantee consistent quality.
02
Screen Printing
Precision silk-screen printing for clean, scratch-resistant logos and warning text directly onto glass, ceramic, or plastic surfaces.
03
Gold Stamping
High-precision hot foil stamping technique that delivers metallic gold, silver, or rose gold foil details onto labels and luxury gift boxes.
04
Fragrance & Wax Mixing
Industrial mixing tanks ensure exact scent load concentration, blending natural soy wax and premium fragrance oils homogeneously.
05
Filling Stage
Temperature-controlled automated liquid filling lines for candles, reed diffuser base liquids, and room sprays.
06
Precision Weighing
Inline digital gravimetric scales check net weight for each container, guaranteeing strict volumetric tolerance and compliance.
07
Labeling Process
Automatic wrap-around and front/back label applicators ensure bubble-free, perfectly aligned private label branding.
08
Paper Cutting
Heavy-duty guillotine paper cutters prepare greyboard, art paper, and corrugated board to exact box dimensions for rigid gift sets.
09
Creasing Process
Precision die-cutting and creasing machinery ensure clean fold lines, perfect structural integrity, and crisp edges on paper boxes.
10
Box Folding & Forming
In-house rigid box forming lines fold, glue, and shape custom presentation gift boxes tailored for retail and seasonal gifting.
11
Assembly & Packaging
Final manual assembly, insertion of reeds/accessories, security seal application, and protective master carton packing for safe global transit.
Factory Infrastructure
Specialized Production Machinery & Equipment
Shanghai Qusden Household Products Co., Ltd. invests continuously in modern machinery to scale capacity while maintaining exact batch-to-batch repeatability.
Automated Spraying Line
Multi-axis rotary spraying machine for consistent coating thickness across complex vessel shapes.
Screen Printing Machine
High-speed cylindrical and flatbed screen printers capable of multi-color registration on glass and plastics.
Gold Stamping Machine
Pneumatic hot foil press providing clean metallic transfer for high-end retail packaging visual accents.
Industrial Fragrance Mixer
Stainless steel heated mixing vessels with speed control for thorough oil dissolution into soy wax blends.
Automatic Filling Line
Multi-nozzle piston and peristaltic filling stations designed for high throughput and spill-free dosing.
Volatile Liquid Filling Machine
Explosion-proof sealed dosing system tailored for alcohol-based room sprays and volatile diffuser base formulations.
Automated Labeling Line
High-precision sticker applicator featuring optical sensor alignment for jars, tins, and bottles.
Programmable Paper Cutter
Digital hydraulic paper cutter delivering clean trimming for packaging sleeves, box wraps, and insert cards.
Heavy Duty Creasing Machine
Scoring and creasing unit preventing paper cracking along fold lines on heavy cardstock and rigid paperboard.
Box Folding & Forming Line
Automated box wrapping machine that glues paper covers onto rigid boards for luxury gift box manufacturing.
Assembly & Packaging Conveyors
Streamlined manual packing conveyor belts with continuous inline QC inspection checkpoints.
Quality Assurance Protocol
Inline Inspection & Laboratory Stability Testing
To ensure products meet global standards (EU CLP, REACH, US Prop 65) and endure international shipping, Shanghai Qusden Household Products Co., Ltd. conducts comprehensive QA testing in our internal laboratory.
Online Quality Inspection
Dedicated QC inspectors evaluate surface finishes, fill height, wick placement, print registration, and seal integrity directly on active production lines.
Transportation Vibration Test
Simulates ocean freight and road transportation vibration stresses to verify carton durability and container packing resilience before mass shipping.
Climate & Humidity Testing
Constant temperature and humidity incubators test fragrance liquid stability, wax frosting resistance, and oil separation across extreme tropical and cold environments.
Vacuum Drying Oven (Leak Test)
Simulates air pressure changes during air freight and sea transport to guarantee zero leakage from diffuser caps, spray pumps, and wax containers.
Accelerated Aging & Evaporation Test
Secondary high-precision vacuum drying oven evaluates long-term fragrance preservation, liquid evaporation rates, and formula stability over extended shelf life.
Why International Brands Trust Shanghai Qusden Household Products Co., Ltd.
Our complete ownership of processing, decorative finishing, automated filling, and box manufacturing eliminates intermediary margins and guarantees total quality control.
BSCI & ISO 9001 Certified
Factory operated under audited social compliance standards and rigorous ISO 9001 quality management systems.
End-to-End Customization
Full OEM/ODM support covering fragrance blending, custom glass vessel tooling, screen printing, and rigid box design.
Export-Ready Compliance
Safety Data Sheets (SDS), IFRA compliance certificates, and transport stability reports provided with every production run.
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Explore our full manufacturing capabilities, custom vessel options, and latest fragrance library. Request our detailed product catalog and wholesale price guide today.