{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Unit_6_-_Paper_and_Paperboard

Unit_6_-_Paper_and_Paperboard - ingredient in papermaking...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
6.5.1 Raw Materials The primary raw material for packaging paper and paperboard is wood. Other materials, such as rags, straws, and grasses can be used, but they are less common. Recycled paper is an increasingly important feedstock for paper manufacturing; however, here we will just focus on wood as the feedstock. The first step is harvesting the wood. Wood can be delivered to the paper mill either as logs or as wood chips. At some point the bark is removed because it is not a desirable
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ingredient in papermaking. Paper can be made from either hardwoods or softwoods, but softwoods are generally more desirable, especially in packaging applications because they have longer fibers which can overlap and interlock better. Here is a comparison paper made of softwood and hardwood fibers: Paper Fibers...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern