Blown Film Extrusion Introduction
Blown film extrusion is a technology that is the most common method to make plastic films, especially for the packaging industry. The process involves extruding a tube of molten polymer through a die and inflating to several times its initial diameter to form a thin film bubble. This bubble is then collapsed and used as a lay-flat film or can be made into bags. Usually polyethylene is used with this process, and other materials can be used as blends with these polymers. A diagram of a polyethylene chain is shown in Figure 1 to the right.
Background Theory on Polymers
In the cooling step of blown film extrusion, the amorphous, transparent melt crystallizes to form a translucent, hazy, or opaque film. The point where opacity begins in the bubble is known as the frost line.
Fig 1: Model of polytheylene chain frompolyethylene Wikipedia article.The frost line height is controlled by several parameters: the air flow, film speed, and temperature difference between the film and the surroundings. Properties of the film, such as tensile strength, flexural strength, toughness, and optical properties, drastically change depending on the orientation of the molecules. As the transverse or hoop direction properties …
Blown Film Extrusion Introduction
Justifications for Outsourcing the Order Fulfillment Services to a Professional Company
Shipping and fulfillment are becoming vital functions to all online companies. Therefore, if you are running an online business you should weigh the need to outsource these services. You should seek to identify the firm that will provide top-class facilities that meets your needs. You should also seek to see the value you will get from hiring this company. Read more now to discover the rationale for engaging a professional shipping and fulfillment services company.
To expand your market when operating an online business you should consider hiring a professional shipping and fulfillment services company. Such a company has invested in the right infrastructure to move products to various locations. Hence, this company is will transport numerous products to the end customers in different areas. You can check it out! this link to see more about the top order fulfillment company. The idea is to discover how sourcing for these services will help enhance your business market growth.
The other gain of hiring the top shipping and fulfillment services company is the money savings. Shipping can be costly to online stores. Hence, a business may think it has only …
Hints of Buying the Best Can Rinser
Recycling of beverage bottles is necessary for the beverage companies. The need to buy can rinsers may germinate as due to such. By reading this article, you will come across the tips of buying the best can rinsers.
Step number one will be to make yourself conversant with the tasks that you will want to accomplish with the can rinser. The details will be vital in understanding the can rinser that will be the best for you.
To determine the types of can rinsers which are available in the market, it will be vital to conduct a prior research. The internet has emerged to be the best tool for research in the modern times. The knowledge of the can rinsers that will be present in the market will be accessed through the internet. You will additionally get recommendations from some of the people who have used some of those can rinsing systems to perform various tasks. The research will help you understand the various principles of operation of the available can rinsers.
Under no circumstance should you forget to ascertain how effective the can rinser system will work out in your production industry. …