Making New Paper Process and Making Recycled Paper Process

  • Thread starter soonsoon88
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  • #1
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What is the main different within them process ?
Any good web or source can gain more knowledge about them?
 

Answers and Replies

  • #2
2,685
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From what I've seen in the local paper mill, nothing.

This plant adds wood and recycled paper into a giant blender to produce pulp. After that it's one process.
 
  • #3
54
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From what I've seen in the local paper mill, nothing.

This plant adds wood and recycled paper into a giant blender to produce pulp. After that it's one process.


Erm...you mean for recycled paper making process..
Extra wood and waste paper will be added into a giant blender to produce pulp is the only different ?
 
  • #4
2,685
22
Erm...you mean for recycled paper making process..

Do I? Don't believe that's what I said.
Extra wood and waste paper will be added into a giant blender to produce pulp is the only different ?

They only make "new" paper in the local mill.

They take wood and recycled paper*, and mix it together.

The only difference in the process will be in how they get the pulp. Once you have that it's the same to get the actual sheets.

Obviously, with recycled paper you need it white going in so you have to bleach it.

*Recycled can be from waste during production and paper that's brought in from outside sources. Strictly speaking, yes, it's waste paper - not sure why you changed the wording.

If something is made from 100% recycled paper, I don't believe it has any new wood added to it.
 
  • #5
turbo
Gold Member
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Actually, the process can be VERY different.

Kraft digestion and Sulfite processes are primarily chemical and heat-based. Then there are thermomechanical process that are used to make groundwood pulp for newsprint, etc. Depending on the qualities needed in the final product, mills often bleach the pulp with chlorine, chlorine dioxide, peroxide, or other oxygen processes.

To make recycled paper, you need a suitable source of paper, and you need to balance the availability of those sources against the value of your finished product, and the costs of making the used paper usable. You have to consider the costs of maceration, de-inking, removal of higher AND lower-mass contaminants (requiring two different types of centrifugal cleaners), etc, etc. And again, if you need white pulp, there has to be at least a simple bleaching stage.

Any one of these processes could be the subject of a lifetime's study and work, and can't be described in an on-line forum comprehensively, or with reasonable accuracy. Use Google, Wiki, and other on-line tools to steer you in the right direction. You'll be at it for a while, guaranteed.
 
  • #6
2,685
22
Actually, the process can be VERY different.

I was looking at the same end product (in the case of the local mill, mainly toilet roll).

They vary the content depending on supply, but the process remains the same.

However, that's why I said it's different up to the point of getting pulp. They receive the paper pre-processed.
 
  • #7
54
0
Do I? Don't believe that's what I said.


They only make "new" paper in the local mill.

They take wood and recycled paper*, and mix it together.

The only difference in the process will be in how they get the pulp. Once you have that it's the same to get the actual sheets.

Obviously, with recycled paper you need it white going in so you have to bleach it.

*Recycled can be from waste during production and paper that's brought in from outside sources. Strictly speaking, yes, it's waste paper - not sure why you changed the wording.

If something is made from 100% recycled paper, I don't believe it has any new wood added to it.

I m believing you =)
but maybe i still doubt with it. Therefore, i keep asking.
I will change the words because i dont want make confuse waste paper and recycled paper.
Recycled paper is the outcome i want...Hehe
In short, in order to make 100% recycled paper, they will only use waste paper to produce the pulp they wan right ?
However, after get the pulp and later process will be same already with making new paper.
I got what you mean..sry for misunderstanding..
 
  • #8
2,685
22
It's when they reclaim the paper you're interested in. They are the processes you need to look up.
 
  • #9
1
0
i agree to the turbo's remarks you should search vary engines for your further assistance
 

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