Engineering Pure Comfort.
Scaling Global Brands with AI.

Direct-to-consumer hygiene brands typically realize 65% to 78% gross profit margins with our manufacturing model. For a premium ultra-thin baby diaper (pack of 30 pcs), the ex-factory manufacturing cost ranges from $2.10 to $2.60 per pack ($0.07 to $0.086 / piece), depending on SAP density and bamboo nonwoven selection. Recommended DTC retail subscription pricing on Shopify, Amazon, or TikTok Shop is $9.99 to $13.99 per pack. For adult incontinence pull-up underwear (pack of 10 pcs), ex-factory cost is $4.20 to $4.90 per pack with retail pricing of $18.99 to $22.99 per pack.

We operate under Incoterms 2020 including FOB (Xiamen, Quanzhou, Shenzhen), CIF (destination port), CFR, and DDP (Delivered Duty Paid directly to your 3PL warehouse or Amazon FBA fulfillment center). Standard payment terms are 30% T/T deposit upon purchase order confirmation and final artwork sign-off, with the remaining 70% balance payable against Bill of Lading (B/L) copy and SGS inspection release. For publicly listed retail chains, government tenders, or repeat partners with verified Dun & Bradstreet credit, 100% Irrevocable Letters of Credit (L/C at sight) or open-account terms (Net 30/60) are supported.

We provide standard production sample packs 100% FREE of charge. Buyers simply provide a DHL, FedEx, or UPS freight collect account number (or cover nominal international air express postage). For customized OEM prototypes requiring bespoke SAP core formulations, custom elastic waistband tensions, or biodegradable bamboo contact sheets, our pilot laboratory produces and dispatches your physical prototypes within 5 to 7 working days.

A traditional fluff pulp core relies heavily on raw southern pine wood pulp (70-80%) blended with loose SAP granules, creating a bulkier profile (35-45g per piece) with higher fluid volume capacity, suitable for institutional hospitals and budget mass-market retail. In contrast, our 5-Layer Composite SAP Core (SAP Paper Core) mechanically bonds high-purity superabsorbent polymer (up to 70% SAP by weight) between airlaid nonwoven tissue matrices without loose pulp. This achieves an ultra-thin 1.8mm profile that absorbs 800-1000ml instantly without clumping, zero localized swelling, and zero core breakage even during vigorous infant mobility.

Rewet value (the volume of fluid forced back onto the baby contact layer under physical pressure) is strictly controlled below 0.15g (verified under EDANA / INDA NWSP 070.7.R2 standards) through three interlocking engineering layers: 1) We use Japanese Sumitomo Seika Aquakeep SA60N SAP featuring an Absorbency Under Load (AUL at 0.7 psi) of ≥ 28.5 g/g, locking moisture under body weight; 2) A 45gsm Acquisition Distribution Layer (ADL) that channels void surges longitudinally within 1.8 seconds; 3) A 3D diamond-embossed hydrophilic hot-air nonwoven topsheet that breaks surface tension instantly.

Yes. Our Eco-Pure Green Series features 100% FSC-certified biodegradable bamboo viscose on both the topsheet contact layer and outer backsheet. Bamboo fibers offer natural antibacterial properties, hypoallergenic pH compatibility, and superior breathability. When paired with Totally Chlorine-Free (TCF) fluff pulp and compostable PLA/PBAT starch-based packaging polybags, over 68% of the diaper decomposes within 90 days in certified industrial composting environments, complying with European EN 13432 and ASTM D6400 biodegradable standards.

Tape-style diapers feature refastenable micro-hook S-cut side tapes and frontal landing loop zones, engineered for infants 0-12 months and bedridden adult patients requiring easy changing while lying down. Pull-up pants (training pants) incorporate 360-degree ultrasonic-welded elastic waistbands with high-tension Lycra thread counts (38-46 strands) and tear-away side seams, engineered for active toddlers (1-4 years) learning toilet independence and active adults managing light-to-moderate incontinence discreetly under everyday business attire.

For U.S. customs entry: Adult incontinence diapers and nursing underpads are classified as Class I Medical Devices requiring active U.S. FDA 21 CFR 876/880 Facility Establishment Registration and Device Listing (FEI number). For European customs entry: Products require European CE Marking under Medical Device Regulation (EU MDR 2017/745 Class I), CE Declaration of Conformity with an Authorized Representative (EC REP), and REACH SVHC chemical screening. Shenghongda maintains active registrations with complete Technical Files ready for immediate audit.

To satisfy Regulation (EU) 2023/1115 (EUDR), 100% of our virgin wood fluff pulp is sourced strictly from FSC-certified sustainable forestry plantations (Weyerhaeuser and Georgia-Pacific in the USA). We maintain complete GPS polygon geolocation coordinates for every timber harvest plot, harvesting date logs, and statutory Due Diligence Statements (DDS). We submit verified Chain-of-Custody (CoC) audit trails with every export shipment to European ports, eliminating customs detention risks.

Yes. All baby and feminine hygiene materials are certified under OEKO-TEX Standard 100 Class 1 (the strictest category for infant mucous membrane contact), guaranteeing the complete absence of over 300 hazardous substances, including formaldehyde, optical brighteners, pesticide residues, and heavy metals. Products also pass clinical 48-hour human repeat insult patch testing (HRIPT) by SGS and carry Dermatest® 5-Star Excellent hypoallergenic safety ratings.

Our 75,000 m² Quanzhou manufacturing campus operates 16 high-speed full-servo production lines developed in engineering partnership with Japan’s Zuiko Corporation. Production speeds reach 600-800 pieces per minute on baby diaper lines and 350-450 pieces per minute on adult pull-up pants. Annual total production capacity exceeds 1.2 Billion units, backed by an uninterrupted 35-day raw material buffer stock of Japanese SAP and North American fluff pulp.

Every converting line is equipped with 100% inline machine-vision CCD camera inspection systems with 360-degree optical sensors scanning at 0.1mm resolution. The AI visual inspection array verifies elastic waistband placement, frontal tape centering, SAP distribution uniformity, and surface foreign body detection. Defective units trigger automated high-pressure pneumatic kickers that eject the unit off the line in milliseconds without slowing machine velocity, guaranteeing a factory defect rate under 0.01%.

Our in-house CNAS-standard laboratory conducts 8 mandatory physical assays on every production roll: 1) Centrifuge Retention Capacity (CRC) and Absorbency Under Load (AUL at 0.7 psi); 2) Multi-dose strike-through time (< 1.8s); 3) Rewet wetback under 4.0 kPa pressure (< 0.15g); 4) Moisture Vapor Transmission Rate (MVTR > 3500 g/m²/24h); 5) Hydrostatic water column barrier pressure (> 150 mm H2O); 6) Elastic tensile elongation and recovery cycle test; 7) Bioburden microbiological safety test (ISO 11737); 8) High-temperature aging and adhesive peel strength test.

Our AI DTC Incubator combines contract manufacturing with digital commerce acceleration: 1) 48-Hour Turnkey Store: Pre-built, high-converting Shopify and TikTok Shop themes optimized for mobile diaper subscriptions; 2) 3D Virtual Packaging Simulation: High-definition photorealistic 3D bag renders allowing you to pre-sell online before copperplate cylinder engraving; 3) Automated Multichannel AI Content: Viral TikTok video hooks, Facebook/Meta conversion ad copy, and localized SEO keyword clusters; 4) 30-Day Free Bonded Warehousing in Xiamen Port zone with turnkey DDP sea-air shipping directly to your 3PL or customer doorstep.

Yes. Our in-house creative design team provides full-service packaging dieline adaptation, color separation for 8-to-10 color gravure printing, and regulatory labeling compliant with regional consumer packaging laws in the US (FTC / FDA), EU, UK, and GCC countries. We also assist startup clients with GS1 registered GTIN/UPC/EAN barcodes for retail supermarket POS scanning.

Using our high-pressure hydraulic balers and vacuum compression technology, carton/bale volumes are reduced by 15-22% without damaging core loft: A 40HQ container (utilizing ~68 CBM) holds approximately 360,000 to 420,000 pieces of ultra-thin baby diapers; 85,000 to 110,000 pieces of adult incontinence pull-up underwear; 80,000 to 100,000 pieces of adult tape diapers; and 180,000 to 220,000 pieces of 60x90cm clinical nursing underpads. We calculate and supply a 3D container loading diagram with every proforma invoice to optimize your ocean freight cost per unit.

Standard factory production lead time is 25 to 30 days for initial orders (accounting for cylinder engraving and printed polybag film extrusion) and 15 to 20 days for repeat orders. Our factory is located 60 minutes from Xiamen Port (CNNMN), a top-10 global container hub. Ocean shipping transit times: 12-16 days to US West Coast (Los Angeles / Long Beach), 24-28 days to US East Coast (New York / Savannah), 22-26 days to European base ports (Rotterdam / Hamburg / Felixstowe), 10-14 days to Middle East (Jebel Ali / Dubai), and 5-8 days to Southeast Asia (Singapore / Manila).