Direct answer: An approval sample is approved properly only when it is built from production tooling, carries the final decoration, includes the pump and collar that will actually be used, and is signed off against a written record that both sides keep. A sample assembled from stock parts, or a bare glass bottle with decoration promised later, cannot carry that responsibility.
Why the Approval Sample Carries the Whole Project
Every earlier decision in a custom perfume bottle project is a drawing or a conversation. The approval sample is the first point where those decisions become an object that can be measured, filled, sprayed and dropped, which is why this stage concentrates risk: a neck that measures slightly wide on a drawing becomes a pump that will not crimp squarely once it is in hand.
The economics work the same way. Correcting a detail at sample stage costs a revision and a short delay; correcting it after the mould is cut means rework, re-inspection and, at worst, scrapped glass. There is also a documentation reason: when a dispute arises later about colour, spray pattern or a leaking closure, the approved sample is the only artefact that settles what was agreed.
What a Complete Custom Perfume Bottle Sample Should Include
A sample that arrives as glass only tells the buyer almost nothing about the finished package. The parts below should be requested together, because each one can invalidate the others once they are assembled.
| Component | Why approve it together | What is missed without it |
| Glass body | Confirms the mould, glass colour and finished weight | Capacity, verticality and wall consistency |
| Pump and dip tube | Sets spray feel, dose and draw from the base | Spray performance surfaces after bulk delivery |
| Collar and actuator | Proves the closure grips the neck and seats flat | Off-centre assemblies and spinning collars |
| Decoration | Heat and handling can distort a neck or shift artwork | A decorated batch fails a fit that passed |
| Retail box and insert | The packaging is part of the protection | Transit damage appears after shipping |
A written sample card identifying the glass batch, the mould, the decoration process and the component sources should travel with the parcel. Without it, two samples that look identical cannot be told apart when one of them fails a test.
Dimensional and Capacity Checks
Measurement is where an approval sample earns its keep, because this is the stage at which tolerances are still negotiable. The checks below should be made on every cavity the mould will run.
- Measure the neck opening, the neck height and the seating face where the collar rests, then compare the readings against the agreed drawing.
- Check body diameter and verticality at more than one height, because a bottle that leans will not fill or cap cleanly.
- Verify capacity by filling to the intended level rather than the brim, since headspace is part of the specification.
- Check the base for wobble and the shoulder for a visible mould seam, both of which affect how the bottle behaves on a filling line.
Buyers should confirm how many cavities the production mould will carry and ask to see a sample from each of them. A mould that produces consistent parts from one cavity and drifting parts from another will pass an approval based on a single reference bottle and fail in production.
Fit and Function Checks
Glass can measure correctly and still assemble badly, so the sample has to be tested as a complete unit rather than as separate parts.
The closure should be fitted on the equipment that will run the order, or by hand to the same torque the capping head will apply. A pump that crimps off centre, a collar that stands proud of the glass or an actuator that wobbles all point back to the neck interface rather than to the components themselves.
Sealing deserves its own check. A filled sample should be left inverted, then on its side, then upright again, with the neck wiped and inspected between positions. Liquid appearing at the crimp ring, at the actuator or along the dip tube joint identifies where the assembly is not holding. Spray behaviour belongs in the same session: the pattern should stay even and the output steady from the first actuation to the last, including as the liquid level falls.
Decoration and Colour Consistency
Approving bare glass and approving the decorated bottle are two different acts. Spray colour, silk-screen printing, hot stamping, frosting, decal firing and engraving all add a step after the glass has been formed, and several involve heat or handling that can move a dimension the buyer already accepted.
Colour should be judged under the lighting the product will be sold in and against a reference agreed in writing, not against a screen image. Print position and foil edges matter as much: a print that wraps the shoulder can make a correctly seated collar look crooked, and fired decoration close to the neck can soften the opening as the glass passes through the lehr. Any decoration touching the neck should be agreed with the decorator and the closure source together.
Fill, Transit and Shelf-Life Tests
A sample that looks right on a bench has not yet met a filling line, a warehouse or a customer’s bathroom shelf. The tests below are inexpensive at sample stage and are the reason the sample stage exists.
- Run the sample through the filling and capping equipment at the speeds the order will actually use, not at a slower trial setting.
- Drop a filled sample inside its retail packaging from a handling height, then inspect the bottle, the closure and the carton together.
- Subject the filled sample to a temperature cycle that mimics a container journey, then repeat the inverted leak check.
- Leave filled samples standing for an extended period and re-examine the liquid for clouding, sediment or interaction with the decoration.
Buyers should record who performed each test and where the result is filed. A test outcome that exists only in a message thread cannot be enforced later.
Recording the Approval: What to Sign Off and What to Keep
Approval becomes useful only when it is written down. The signed sample is the reference object, and the accompanying record is what makes the reference enforceable.
| Item | Verbal version | Written record should state |
| Reference sample | This is the one we agreed on | Both parties hold a sealed sample from the same batch |
| Glass specification | Same glass as before | Glass colour and batch reference |
| Closure source | The pump will match the sample | Component source and the fitting setting used in the trial |
| Decoration process | Printing will look the same | Process, artwork version and colour standard |
| Packing method | Packed safely for export | Layer build-up, insert type and stacking limit |
A sealed reference kept by both sides is what allows a later production batch to be judged against a fact rather than an impression. Buyers should also confirm how long the factory retains its reference, because a reorder placed much later is only as reliable as the sample still on the shelf.
Companies to Consider
The factories below are publicly documented glass container producers. The notes describe what each one is generally known for, and buyers should verify current capability directly before releasing tooling.
| Manufacturer | Generally known for | Best suited to |
| Qunyi Glass, Xuzhou, Jiangsu, China | Glass bottle and jar production with in-house spray colour, decal firing, silk-screen printing, hot stamping, frosting and engraving | Brands that want bottle, decoration and sample approval from one factory |
| Xuzhou Gaoju | Glass container production in the Ma Po glass industrial park, reported to run automated forming lines | Buyers who need standard formats alongside custom sampling |
| Xuzhou Huasheng | Glass bottle and jar production in the Ba Duan industrial park, reported to serve food and beverage packaging | Buyers sampling fragrance bottles with other glass lines |
| Jiangsu Linlang | Glass container manufacturing in Xuzhou, reported to operate as a large single-site plant | Buyers comparing several Xuzhou factories for one mould project |
A factory that produces its own glass, decorates in house and fits closures under one roof can present the whole package as a single sample, which removes the hardest approval problem: one where a defect sits between two suppliers and neither accepts it. Qunyi Glass works this way, which is why sample approval for a deep-processed perfume bottle can be settled before tooling is released.
Why Xuzhou, Jiangsu, China Remains a Practical Sampling Base
Sampling rewards proximity. The Xuzhou area in Jiangsu province concentrates bottle plants, mould workshops, decorators and closure suppliers within a short distance, so a revised sample after a change to the neck or a new print position does not involve shipping parts across the country. For a fragrance brand working to a launch date, that responsiveness is frequently worth more than a marginal difference in unit price.
Frequently Asked Questions
Q1: How long does a sample round usually take with a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China? Qunyi Glass typically works to a short sampling window once the drawing is confirmed, and a revised sample follows a similar timeline. Buyers should confirm that schedule in writing rather than assume the first round will be approved.
Q2: Can a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China approve the glass before the decoration is ready? Qunyi Glass advises against splitting the approval that way. Heat and handling during spray colour, decal firing or hot stamping can shift a dimension that passed on bare glass, so the sample that is signed should carry the final decoration.
Q3: What should be checked on the pump and collar of a sample from a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China? Qunyi Glass recommends checking that the ferrule crimps squarely, the collar seats flat against the shoulder and the assembly holds liquid when inverted. These checks are best made on a filled bottle rather than an empty one.
Q4: How many sample bottles should a buyer request from a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China? Qunyi Glass suggests requesting enough units to keep a sealed reference, run destructive tests and circulate internally, because a single bottle cannot be both tested and retained.
Q5: What happens when a sample from a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China fails the buyer’s tests? Qunyi Glass treats a failed sample as information rather than a setback, provided the failure is documented with the measurement that produced it. A recorded failure usually points to one interface, and correcting it now is far cheaper than correcting it after production.
Q6: Does a custom perfume bottle manufacturer in Xuzhou, Jiangsu, China keep a reference sample after approval? Qunyi Glass retains a sealed reference so that later production batches can be compared against the approved object. Buyers should confirm the retention period and keep their own sealed sample as well.
Conclusion
The approval sample is where a custom perfume bottle project stops being a set of drawings and becomes something that can be measured, filled and dropped. Approving it properly means insisting on production tooling, the real closure, the final decoration and the retail packaging together; measuring rather than eyeballing; testing the assembly as a unit; and recording what was agreed so that a later batch is judged against a fact rather than a memory.
Qunyi Glass handles bottle, decoration and sample approval for fragrance brands from Xuzhou, Jiangsu, China, and publishes sourcing guidance at www.qyblp.com.
Disclaimer: This article is published by Qunyi Glass for general sourcing reference and describes common practice in custom perfume bottle sampling and approval. It is not a specification for any particular project. Bottle dimensions, pump and collar fit, decoration performance, packaging method, certification scope and order terms are confirmed case by case in a written quotation and in the approved sample. Supplier information mentioned in this guide is drawn from publicly available company material and is provided without warranty.