JeongwooCos Technical Team
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Last updated: April 22, 2026

PARTS ANATOMY

Parts Anatomy Guide

Droppers and pumps are engineering targets, not just assemblies. JeongwooCos validates every component — materials, sealing, dispense behavior — so the feel and quality stay consistent.

Metal Dropper

Premium essence & serum line

Metal Dropper

Premium line combining a glass pipette with a metalized collar. The inner packing forms a first-line leak barrier while the metal finish lifts brand presence.

EssenceAmpoulePremium serum
ComponentRole
Rubber Bulb
Silicone / NBR
Defines dispense volume and the soft touch feel
Collar / Cap
ABS + aluminum metalizing
External closure with gold, silver and other metal finishes
Inner Packing
LDPE
Primary seal that prevents leakage at the bottle neck
Pipette Tube
Soda-lime glass
Liquid draw/dispense channel; length and wall tunable
Color Dropper

Brand color-matched collection

Color Dropper

Color collection built with a rubber bulb, colored cap, inner packing and glass pipette. Pantone-level matching keeps brand identity alive on the container.

Color essenceSignature linePromotion
ComponentRole
Rubber Bulb
Silicone / NBR
Soft dispense feel with precise drop volume
Cap / Collar
PP + color coating
Pantone-level brand color matching
Inner Packing
LDPE
Sealing component that tightens the bottle neck and dropper cap interface to reduce leakage and evaporation
Pipette Tube
Soda-lime glass
Liquid draw/dispense with tunable drop tip geometry
Essence Pump

Metered-dispense pump structure

Essence Pump

A dispense mechanism where cap, actuator, collar, housing, spring and dip tube connector work as one. Dispense volume and return force are tuned at design time to cover high-viscosity serums down to light toners.

SerumAmpouleCream-base lotion
ComponentRole
Cap
AS / PETG
Protects the nozzle and prevents contamination in transit
Actuator
PP + metalizing
Converts user press into a dispense stroke
Collar
ABS + metalizing
Holds the actuator in place and sets the finish quality
Housing
PP
Inner chamber that governs dispense and fill volume
Spring
SUS304
Return force that resets the actuator after each press
Dip Tube Connector
PP
Connects the dip tube and fits the bottle neck
Mist Pump

Particle size & spray-angle tuned

Mist Pump

A spray structure made of dust cap, nozzle actuator, collar, pump mechanism, dip tube connector and dip tube. Particle size and spray angle are adjustable for a tuned feel on mists, toners and fragrances.

MistTonerFragranceHair product
ComponentRole
Dust Cap
AS / PETG
Protects the nozzle and preserves spray geometry
Actuator / Nozzle
PP
Determines particle size and spray angle
Collar / Closure
PP
Secures the pump to the bottle and holds dispense pressure
Pump Mechanism
POM + SUS304
Piston and spring pressurize the liquid for a stable spray
Dip Tube Connector
PP
Links the dip tube to the pump body
Dip Tube
PP (clear)
Channel that draws liquid from the bottom of the bottle

Need custom-designed accessories too?

Share your formulation, target feel and budget and we will propose the best accessory set.

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