1. Structure and composition
Bottle: Made of transparent or brown glass, cylindrical design, the capacity usually ranges from 5mL to 100mL. The brown bottle can avoid light and is suitable for storing light-sensitive liquids.

Dropper assembly:

Glass/rubber dropper: One end of the slender glass tube is pulled into a capillary tip, and the other end is equipped with a rubber/silicone head (detachable), and the amount of liquid droplets is controlled by squeezing.

Ground mouth stopper: The mouth of some dropper bottles is designed with frosted glass, which matches the dropper to ensure airtightness.

2. Features
Chemical stability: acid and alkali resistant (borosilicate glass), suitable for holding corrosive liquids.

Precise volume control: The tip of the dropper can release liquid drop by drop (about 0.05-0.1mL per drop).

Sealing: The rubber head or screw cap prevents liquid evaporation or leakage.

3. Common uses
Laboratory: reagent packaging, staining solution addition, pH adjustment, etc.

Medical: Packaging of medicines (such as eye drops, topical liquid medicine).

Industrial: Packaging of small-volume liquids such as essential oils and cosmetics.

4. Precautions
Avoid sudden cooling and heating to prevent glass breakage.

Clean promptly after use to prevent the dropper from clogging.

The rubber head may age due to long-term contact with organic solvents and needs to be replaced regularly.

5. Variant design
Plastic dropper bottle: light and resistant to falling, but poor in solvent resistance.

Graduated dropper: The bottle or dropper is marked with scales for rough measurement.

Since 2010, COLORPACK have been focusing on the printing of flexible packaging（BOPP/VMPET/PE ）, self-adhesive label, paper bags，packaging boxes, gift boxes etc to meet various needs for worldwide customers, which is an original professional manufacturer in CHINA, Customizing unique packaging for different brands of products，so that our customers can promote their brands and get better sales.
Our workshop is constructed in according with Industrial 4.0 intelligent standards, including 8,000m2 of 100,000 level dust-free purification workshop. Equipped with 4 sets of BOBST high-speed printing production lines, the printing speed reaches up to 400 m/min, with up to 10 printing colors.
There are 8 sets of high-definition intelligent digital QC inspection equipments to guarantee no defective products can be missed,together with our stringent quality assurance policy ensures ultimate customer satisfaction.With FDA, EU10-2011, ISO9001:2015 and FSSC22000 certified, we also implement the PDCA cycle improvement management system internally.
With the goal of "good quality, zero defects" to provide consumers with consistent high quality packaging products.