Frequently asked questions

Is Rainbow a trading company or manufacturer?
We are 100% manufacturer specialising in flexible plastic packaging. Our facility is in Shenzhen,Guangdong, China.

Can you recommend a material structure for my packaging needs?
Yes, kindly provide us with the information of your packaging contents and its weight and we will recommend a material structure that suits your requirements.

What’s your MOQ?
Your first order should cover 5,000 square meters of film while subsequent orders 10,000 square meters of film.

How long will I have to wait for my bags to be delivered?
The delivery time is usually 20 days. However if you need it delivered urgently, please inform us in advance.

How soon can I receive a quotation?
We will make an offer within 24 hours. For urgent matters, kindly dial our number or e-mail us and we will response back within 5 minutes.

What certifications does Sunkey Plastic Packaging have for its food and medicine bags?
Certifications include ISO, SGS, and five drug packaging certificates that qualify our bags are food grade.

How can your printing press ensure the printing precision of bags?
Our manufacturing facility has five printing press and able to print up to 12 colors. Moreover, the printing speed of our machines is 180m per minute with printing precision within 2.0mm.

What types of bag can you manufacture?
Our packaging solutions consist of three-side seal bags, back seal bags, pillow bags, stand-up bags, stand-up zipper bags and stand-up bottom bags.

Can you customise zipper bags to my requirements?
We provide packaging solutions and are committed to customising packaging bags for our customers.

What types of glue do you use for lamination?
We use German Henkel polyurethane glue to ensure superior strength and vacuum preservation.

What are the production process stages?
Printing, laminating, curing, slitting, bag-making, packing, inspection, shipping