FAQ
Frequently Asked Questions
1. What is glass made of ?
Glass consists of quartz sand (70%), soda (14%), dolomite (14%) and refining agents (2%).
2. What colours do HuaYuan's glass containers come in?
Our standard colours are white, green and brown. As special colours, we offer primeur, vetrogreen, olive, feuille-morte and cuvée. Of course, individual shades are also possible. Using feeder colorants, we can create cobalt blue, light blue, light green and black.
3. Can you produce bottle per our design?
Yes, we are able to produce the bottle per your own design to fulfill customer. It includes customized shape, emboss logo customized color/pattern/logo, and so on.
4. What’s your shipping terms?
A: For trial order, ship by air such as FedEx/DHL/UPS/TNT etc.
B: For larger order, we will arrange shipment by sea/air per your requirement. Meanwhile, we can help you to choose the best shipping way if you need.
5. How long does the project development process take for a mould?
From the initial idea to the finished technical drawing, it usually takes about 3 to 4 weeks.
6. What is the delivery time for a mould?
From the time the customer approves the drawing to delivery usually takes about 10 to 12 weeks.
7. Does HuaYuan produce any enhanced or decorated glass packaging? What is the minimum batch size?
Embossed glass reliefs underline the individuality of the product. They are a popular way of enhancing glass packaging. We also work with professional partners to produce glass packaging with decoration (screen-printing, lacquering, frosting, etc.). Such enhancements are possible from small batch sizes through to large-scale production.
8. From a production technology aspect, what is the difference between non-returnable and returnable glass packaging?
Returnable glass packaging is subjected to greater stress due to repeated refilling and washing. So it is made heavier, with thicker walls. Non-returnable glass packaging, on the other hand, requires thinner walls and is more lightweight.
9. What is special about lightweight glass packaging?
Lightweight glass containers are made using the narrow-neck-press-and-blow process. This technology allows containers to be made with especially thin walls. When making the containers, we first use the finite element method to identify those points which are subject to particular pressure. Often only minor adjustments to the geometry of the container are required to eliminate those stresses. Lightweight glass containers are as strong and stable as their heavier predecessors.
10. How does HuaYuan monitor the quality of its glass packaging?
We put our glass packaging through the following quality tests:
measuring tests (weight, content, dimensions, etc.)
destructive testing (internal pressure, pendulum swing impact, thermal shock, etc.)
100% inline testing by inspection machines (wall thickness, crack testing, impurity testing, etc.)
11. Why is surface tempering necessary and what does it consist of?
Glass packaging is tempered at the hot end with a coating of zinc oxide. At the cold end, it is normally given a coating of polyethylene; it means that the glass containers slide more easily past one another. Where wet glue labels are used, the glue has to be matched to the cold end coating.
12. What happens if I have a complaint?
If you have a complaint, please always retain the damaged glass packaging and the pallet number and give them to your customer adviser or to our technical customer services. These documents enable our specialists to quickly identify the cause of the complaint.