SOMAYPACK — Jiangyin Shenmei Packaging Material Co., Ltd. — is a vertically integrated manufacturer of custom flexible packaging. From a 4,000 m² GMP clean workshop and three high-speed printing lines, we deliver certified, sustainable and world-class packaging to food, medical, pharmaceutical and consumer brands worldwide.
Founded in 2004, SOMAYPACK operates a 4,000 m² GMP clean workshop at No.2598 Zhengcheng Road, Jiangyin City, Jiangsu Province — the heart of China's Yangtze River Delta packaging cluster.
We keep the complete process chain under one roof — casting and extrusion, gravure and flexographic printing, dry and solvent-free lamination, slitting, rewinding and bag making. A team of 100+ professionals, three high-speed printing lines and an in-house laboratory allow us to tailor every structure to your product, your filling process and your regulatory market.
Quality control, flexibility, supply chain and lead time — the four things that decide whether a packaging programme actually ships on schedule.
Our quality control system combines the LUSTER online inspection system with an experienced QC team. Quality is continuously monitored throughout production and final inspection, enabling prompt defect detection and consistent product quality that meets customer specifications.
We readily accept small-batch sample orders and customized production, providing flexible solutions for new product development, market testing and specialized packaging requirements. Our flexible production capabilities let us respond efficiently to different customer needs.
Our localized supply chain covers material R&D, precision plate making, logistics and port delivery, technical support and other key services. By integrating these resources locally, we provide efficient coordination, faster response and reliable support throughout the chain.
Located within 100 miles of Shanghai Port, we benefit from convenient logistics and efficient export handling. With optimized production planning, our standard production lead time is typically 7–15 days, enabling fast response to customer orders and reliable shipment schedules.
Three high-speed printing lines and three matching laminators run inside our plant. Each press is tied to the LUSTER on-line inspection system, so quality is measured while the film is still moving.
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The gravure press is equipped with solvent piping to ensure printing stability. It continuously monitors print quality via the LUSTER on-line inspection system, and the production environment maintains constant temperature and humidity.
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The 6-colour gravure press features lower costs, faster job changeover and reduced energy and material waste — meeting most conventional flexible packaging printing requirements.
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This flexo press is dedicated to double-sided printing for paper materials, fitted with an automatic image inspection system. All ink used is ECO-friendly.
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The extended high-speed dry laminator body reduces solvent residue. The whole line is equipped with LUSTER on-line inspection and maintains a stable temperature and humidity environment.
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The solventless laminator achieves eco-friendly lamination without solvents, featuring low odour, stable bonding and energy saving.
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The high-speed laminator features precise tension control and supports various substrates for efficient and stable mass lamination.
Quality is not a final check at SOMAYPACK — it runs through the entire workflow, then gets verified again in our own laboratory.
LUSTER Inline Inspection
With high precision and efficiency, the LUSTER inline inspection system is specifically developed for 100% quality control of flexible packaging. From extrusion, printing, laminating/coating and rewinding to slitting, it is applied across the whole production workflow to achieve 100% automatic quality inspection, optimise productivity and reduce production cost.
Every claim we make about barrier, seal strength or mechanical performance is measured here — on AGILENT, LABTHINK, GBPI and KR-M1 instruments.
Residual solvent testing with AGILENT gas chromatograph.
Oxygen permeability testing with LABTHINK instrument.
Water-vapour transmission rate testing with LABTHINK instrument.
Coefficient of friction testing with LABTHINK tester.
Tensile performance testing with LABTHINK for effective quality control.
Heat-seal performance testing with GBPI instrument.
High-temperature and high-pressure resistance testing with KR M1.
Falling-dart impact resistance testing with GBPI instrument.
Solvent residue, permeation, friction, tensile strength, heat sealing, impact and high-temperature / high-pressure performance are all verified on site — so what leaves our dock is already proven, not promised.
Two in-house laboratory environments — a Class 10,000 biological laboratory and a laser particle monitoring station — keep microbial safety and air cleanliness continuously proven for food, medical and pharmaceutical packaging.
Our in-house microbiology lab performs microbial limit testing (bacteria, moulds and yeasts) on packaging materials, verifies clean-room sanitation, and maintains full records to ensure compliant, safe packaging for food and pharmaceutical use.
Microbial inspection is essential for food packaging, as it blocks microbial cross-contamination and protects food and pharmaceutical products in line with food-contact regulations.
Our biological laboratory consists of a sterile room, microbial limit room and positive control room. Built to Class 10,000 purification standards, it is fitted with Class 100 clean workstations. This controlled environment ensures valid packaging material testing and enables strict quality control for our flexible packaging products.
This Laser Particle Counter adopts laser sensing technology to detect suspended dust particles in the air. It provides accurate particle concentration readings to monitor the cleanliness level of sterile workshops.
Our management systems and packaging materials are certified by independent, internationally recognised bodies — browse the full set of certificates below.
Independently accredited marks covering quality, environment, medical devices, GMP and innovation.
Fire, gas, solvent, pest and particulate control — seven systems that stand between a clean room and a contaminated batch.
Renewable energy, clean emission, closed-loop heat recovery and biodegradable materials — four systems we run in-house, so that better packaging does not have to cost the planet.
We equip RTO regenerative thermal oxidizer facilities for high-efficiency industrial VOC waste gas abatement.
Solar photovoltaic systems are deployed in our factory to utilize renewable solar energy and reduce carbon emissions.
We develop cast-film CPET materials compatible with biodegradable substrates, balancing packaging functionality and eco-friendly goals.
Capturing heat from thermal-oxidation exhaust gas, our Heat Recovery System ensures a stable energy supply for the unit.
We protect both our people and endproducts from potential risks at every production stage.
We practice altruism, focusing on mutual success with every partner.
We act with honesty and full transparency in every business interaction.
We pursue sustainable solutions in both packaging production and new materials R&D.
From Japan and Europe to China and South-East Asia, our flexible packaging runs on the lines of household names in coffee, dairy, medical and consumer goods.
Every market brings its own regulations, filling lines and performance demands. We build the structure around yours.
High-barrier, retort, freezer and vacuum structures for food packaging.
Non-sterile medical paper, aluminium and plastic composite film bags.
Certified under ISO 13485 for pharmaceutical composite film packaging.
Premium surface finishes, soft-touch effects and precise colour matching.
Anti-static, chemical-resistant and heavy-duty protective packaging.
Download our company profile presentation and share it with your team — capabilities, facilities, certifications and markets, all in one deck.
A complete introduction to SOMAYPACK — 20+ years of flexible packaging manufacturing, our 4,000 m² GMP clean workshop, three high-speed printing lines, in-house laboratory, certifications and the markets we serve.
Need a deck tailored to your market or product line? Send us a message and our team will prepare one for you.
Tell us about your project — sample requests, technical specs, lead time or sustainability goals. Our packaging engineers respond within one business day.
