Frequently Asked Questions "FAQ"The following FAQ's are usual questions we are asked, and explain the manufacturing processes. If there are any other questions you want to ask, please contact us and we will gladly answer it based on your specific requirement. We have our advanced lab to analyze your sample and to develop a particular specification with you.
1. What structure / materials do you convert?
Our business is converting the flexible packaging using a large variety of structure / materials including film, foil, and paper.
2. What printing and finishing processes do you use most?
Finished product is typically printed by rotogravure or flexography followed by slitting.
3. How are the materials converted and processed?
Materials are laminated together with processes using glue, or wax. The choice of laminating processes is generally run by the requirements of the end use.
4. How adaptable is the range of structure you convert?
The choice of raw materials covers a wide range which includes cast and oriented polypropylenes, polyesters, polyethylene, foils in different view and papers range from one layer to multilayers.
5. Why choose one lamination over another?
Choices are made based on price, heat resistance required, and machinability.
6. What are some of the properties achieved by the coatings applied in the laminating processes?
Coatings of various sorts can be incorporated to enhance and provide properties such as gloss, scuff resistance, slip, heat seal, and cold seal, anti blocking, lubrication, and much more.
7. When is heat resistance needed?
When contact surface need to resist to the heat during sealing.
8. Why is slip needed?
Slip facilitates performance on wrapping or packaging lines to ensure stable tracking.
9. What is the difference between wet and dry bond?
Wet Bond is the laminating process used to laminate two substrates, one of which is porous, such as paper, foil/paper lamination may be produced by wet bonding. The two substrates are combined before the adhesive is dried.
Dry bonding is the laminating process used to laminate two substrates both of which are non-porous, film/film or film/foil laminations. the two substrates are combined after the adhesive is dried.
10. What is the favorite temperature storage according to the finish product: foil / film structure (Band roll - mix pap - shrink sleeve - paper with wax folding or twisted)?
Storage conditions varies depending on product nature, as example band roll with hot-melt coating must be kept away of direct exposure for sunlight in temp below 24 C° and humidity of 50 to 75%. All this data is available in each individual product specification.
11. What is the meaning of cold seal? And when we use it?
Cold seal is special food contact coating that is applied to some types of packaging film for low seal temperature applications. It is generally used for chocolate coated products or ice cream and in particular for high-speed production machines.
12. What is the difference between solvent based and solvent less lamination?
These are two different types of laminations processes where for solvent based lamination we use solvent based adhesive that dries well after application and then is contacted with the lamination film but for solvent less lamination there is no solvent then we apply it without drying before contact with the lamination film.
The choice between the two types depends on the product type and the application.
For reportable pouches applications where products must have very high thermal and chemical resistance, we use solvent based applications; while for standard laminate for potato chips and snack we normally use solvent less lamination.
13. What is the difference between PVC shrink, POF shrink and PE shrink?
PVC Shrink Film
PVC shrink wrap was the most commonly used shrink film, until replaced several years ago by polyolefin (POF) shrink wrap.
Common Uses of PVC Shrink Film: PVC shrink wrap uses include packaging boxes, CD and DVD packaging, software, small canisters, and other non-edible items.
Drawbacks of PVC Shrink Film: Sealing Strength, storage issues, and sealing by-products are common drawbacks of PVC Shrink Wrap. The plasticizer in PVC Shrink wrap hardens in cold conditions and softens under hot conditions, therefore compromising the strength of the seal and the plastic. PVC shrink wrap also releases small quantities of hydrogen Chloride into the air and carbon deposits onto the sealer. Proper ventilation is required when sealing PVC shrink wrap.
Polyolefin Shrink Film
A type of shrink wrap that has become the preferred choice for packaging products both both edible and non-edible products. Polyolefin Shrink wrap is preferred for a variety of reasons including: fewer odors when sealed, stronger seal, and more flexible storage.
Polyolefin can be stored in a wide range of temperatures and does not harden and soften in different environments like PVC shrink film.
And it is food contact grade.
Polyethylene Shrink Film
Polyethylene shrink film is used to package heavier products with less gloss and higher haze comparing to POF.
14. What technical support do you offer?
Customer support is very important to our Business. The R&D department and the quality department are always up to date with all innovations concerning the packaging sector and will work in partnership to accomplish the best benefits to your project.