BUTTER-C
Home care
Reed diffuser OEM/ODM manufacturing
Reed Diffuser · Home Fragrance Diffuser · OEM/ODM
A reed diffuser consists of a fragrance solution in a glass bottle and rattan or synthetic fiber reeds. The solution travels up the channels inside the reeds by capillary action and evaporates from the upper part of the reeds, carrying scent into the room with no flame or electricity. The main components are the fragrance (synthetic fragrance or natural essential oils) and a diffuser solvent such as dipropylene glycol methyl ether, isoparaffin or a plant-derived solvent; the solution contains no water. The diffusion rate depends on the volatility and viscosity of the solvent as well as the type and number of reeds. The process is mixing at room temperature, filtering and bottling — close to oil-based perfumes on a cosmetics line. Each solvent and fragrance has its own flash point — the temperature threshold above which the liquid's vapor can ignite in contact with a flame — so fire-safety conditions for manufacturing, storage and transport are discussed separately. Please note: this is a household product, not a cosmetic, and has no cosmetic product notification; the label follows the rules on product labeling, with warnings: do not swallow, avoid contact with skin and eyes, keep out of reach of children and pets, the liquid may damage painted, plastic and varnished wood surfaces. Butter-C advises on formulation and packaging; manufacturing requirements, in-house specification and product labeling are discussed separately for each project.
Formula base
Fragrance blended in a diffuser solvent
The diffuser liquid consists of fragrance, a carrier solvent and a small amount of stabilizer; it contains no water.
Fragrance
Synthetic fragrance or natural essential oils, at a much higher level than in a scented spray; with an IFRA certificate for the air care product type.
Glycol ether solvent
Dipropylene glycol methyl ether — dissolves fragrance well, evaporates moderately, low odor; a common base for rattan reeds.
Hydrocarbon solvent
Isoparaffin or plant-derived alkane — nearly odorless, low viscosity, draws the liquid up the reeds evenly.
Stabilizers and rate control
A small amount of antioxidant limits fragrance oxidation and discoloration; slow-evaporating solvents such as dipropylene glycol and triethyl citrate help adjust the diffusion rate in glycol ether bases.
Key technical points
Four things that decide the quality of a reed diffuser
Diffusion rate
Combine fast and slow solvents and choose rattan or fiber reeds and their number so the scent diffuses evenly from start to nearly empty, rather than strong at first and then fading fast.
Clarity and homogeneity
The fragrance must dissolve completely in the solvent; some solvent pairs do not mix, so a compatible system must be chosen; watch for haze and separation in the cold and after aging.
Flash point
Each solvent and fragrance has a different flash point; the measurement on the finished liquid is the basis for agreeing fire-safety conditions for manufacturing, storage and transport.
Packaging compatibility
The solvent can soften or crack some plastics and damage paint; use glass bottles, and stoppers and caps tested for compatibility.
Three formulation directions
Three common types of reed diffuser
Glycol ether base, even diffusion
Dipropylene glycol methyl ether combined with slow-evaporating solvents; a mainstream line for living rooms and bedrooms.
Plant-derived solvent base
Alkane from plant-based feedstock; fragrance can use natural essential oils, with an added antioxidant.
Strong scent for large spaces
High fragrance level in a low-odor, low-viscosity isoparaffin base with fiber reeds; for lobbies, hotels, shops.
Packaging must be planned with the formula
Glass bottle with a stopper, separately packed rattan or fiber reeds, gift box; cap materials tested with the solvent.
Parameters we monitor
What our R&D lab measures on every sample
Below are the parameters monitored during formula development. Specific limits are agreed with you on the approved sample and then written into the product's in-house specification.
- Appearance and clarity
- Color, odor and clarity when freshly made, in the cold and after aging.
- Density, viscosity
- Per formula; directly affects how fast the reeds draw up the liquid.
- Diffusion rate
- Liquid loss tracked over time with a standard reed type and number, under room conditions.
- Flash point
- Measured on the finished liquid by a standard method, for storage and transport classification.
- Fragrance stability
- Odor of aged samples compared with the retained sample.
- Packaging compatibility
- Bottle, stopper, cap and label checked after aging: no leaks, no peeling labels, no fading print.
- Fill level
- Consistent across bottles in a batch.
Claims
Writing claims that fit the product category
A reed diffuser only talks about fragrance and the scent experience in a room; claims about air, insects or health belong to other categories.
Continuous room fragrance, no flame or electricity
Describes how the product works accurately.
Adjust scent intensity with the number of reeds
Describes the directions for use.
A pleasant scent for resting spaces
Instead of: claims about respiratory health, sleep or mood.
Fragrance for the room
Instead of: claims of cleaning the air or repelling insects.
State the fragrance composition correctly
Write "natural essential oils" only when the fragrance really is essential oil; synthetic fragrance is labeled as fragrance.
Directions and warnings
Do not swallow; avoid contact with skin and eyes; keep out of reach of children and pets; avoid spilling on painted, plastic or varnished wood surfaces; keep away from flames; declare fragrance allergens on the label as required by the target market.
Manufacturing specifications
Scope of cooperation
- Texture
- Clear, water-free liquid, possibly lightly tinted.
- Packaging
- Glass bottle with rattan or fiber reeds. Volume agreed when choosing packaging.
- Product category
- Household fragrance product — not covered by a cosmetic product notification.
- Manufacturing and dossier
- Manufacturing requirements, in-house specification and product labeling are discussed separately for each project. Fire-safety conditions are agreed based on the flash point of the liquid.
- Minimum order quantity
- Agreed per order.
- Packaging design
- Label design to the mandatory product-labeling content, printing, gift boxes and packing.
Suggested product concept
White tea reed diffuser in a glass bottle
A product direction to help you picture it — not a ready-made product for sale. The actual formula is developed to your brand positioning and price range.
Dipropylene glycol methyl ether
Base solvent, even scent diffusion.
Triethyl citrate
Slows evaporation and keeps the scent steady to the end of the bottle.
White tea fragrance
With an IFRA certificate for air care fragrance.
100 ml glass bottle, rattan reeds
Gift box, full warnings on the label.
Customization options
What you can specify
The same product type serves different customers for each brand. Tell us your requirements below and our pharmacists will propose a matching approach.
Space
Bedrooms, living rooms, bathrooms, hotels, spas, shops.
Solvent
Glycol ether, isoparaffin, plant-derived solvent.
Scent
Floral, woody, tea, citrus; a signature scent for your brand; natural essential oils.
Reeds
Natural rattan reeds, synthetic fiber reeds, colored reeds.
Product set
Matching scent with a room spray and fabric softener.
Packaging
Clear or colored glass bottles, metal caps, gift boxes, refill bottles.
Further reading
Related topics
Room & linen spray manufacturing
Instant scent for rooms and fabric, in the same Home Care group.
Fabric softener manufacturing
Scent on clothes, can be made in a matching fragrance.
Body mist manufacturing
Fragrance for the body — cosmetic category.
Packaging control
Testing bottle, stopper and cap compatibility with the solvent (in Vietnamese).
How we work
From idea to finished batch
Eight steps and three milestones signed off by both sides: approved sample, notification number, finished batch. Step-by-step details (in Vietnamese) →
Get started
Tell us about the product you plan to launch
Send us your product direction and expected volume. Our team will get back to you during business hours (Vietnam time, GMT+7).
Head office: Huu Le village, Dai Thanh commune, Hanoi · Factory: Thanh Oai Industrial Cluster, Binh Minh commune, Hanoi, Vietnam
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