Usually, when customers have a need for plastic packaging, they tend to be interested in quite similar questions. Such as What material of bags, what size and thickness, and what factors affect the cost and how can we reduce costs?
Below are some criteria for choosing plastic packaging, from a manufacturer’s perspective.
Criteria for choosing size and thickness
In many cases, whether customers receive what they really need or not depends not only on the price, quality or time of the order.
A manufacturer simply respects the customer when making things to ensure that the material, size and thickness of the packaging are exactly what the customer requested. However, this often puts manufacturers in a difficult position when they have to absolutely comply with the requirements even though the packaging may not achieve the highest packaging efficiency.
For example, the most reasonable possible way to save is to reduce the thickness of the packaging, because it is the weight of the plastic that will most directly affect its cost.
The size of the bag mouth width, length and height (if any) are also very important. Excess packaging not only causes waste but also reduces the aesthetics of the package. And in the effort to choose size and thickness for plastic packaging. The “fit and appropriateness” factor will be more important than all the numbers.
Which material will be suitable for your packaging criteria?
To determine the type of starting material, let’s review the characteristics of each main type of plastic resin.
Polyethylene (PE) plastic packaging is the most basic type in both production process and appearance. They are cheap and easy to produce, and thus command a huge market share, appearing all the way from the supply chain to the retail chains. Producers divide PE plastic into HDPE and LDPE. HDPE plastic bags are hard and durable, opaquer than LDPE. LDPE plastic bags are more flexible and can be stretched more.
Bags made from PP (Polypropylene) or OPP (Orient-Polypropylene) plastic are much harder and more transparent than PE plastic. But they are also easily tear when there is a puncture or scratch.
Besides the type of plastic, customers can also decide to use virgin plastic or recycled plastic. Usually, to save costs for customers, manufacturers often suggest them to order recycled bags. However, they still do not have a unified standard for mixing ratios and a general assessment of the impact on bag durability. Of course, their mechanical properties such as strength and toughness will decrease as the mixing ratio increases.
Not all manufacturers agree to use recycled plastic in their production processes, especially for food packaging items. People can only realize this form of cost savings when producing packaging for the secondary market. In this, producers typically produce black bags to hide imperfections.
For your reference, you could explore further via our website: Hanpak.com.vn or mail to info@hanpak.com.vn.