Making New Paper Process and Making Recycled Paper Process

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Discussion Overview

The discussion revolves around the differences and similarities in the processes of making new paper versus recycled paper. Participants explore various methods, materials, and stages involved in both processes, touching on technical aspects and practical considerations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest that the main difference between making new paper and recycled paper lies in the initial pulp production, with recycled paper requiring additional steps for de-inking and bleaching.
  • Others argue that once the pulp is produced, the subsequent steps to create sheets of paper are essentially the same for both processes.
  • One participant notes that the local mill they observed primarily produces new paper, mixing wood and recycled paper, and emphasizes the importance of the pulp's whiteness for recycled paper.
  • Another participant highlights the complexity of the recycled paper process, mentioning the need for suitable sources of paper and the challenges of maceration and contaminant removal.
  • There is a mention of various chemical and mechanical processes used in pulp production, indicating that the methods can vary significantly based on the desired qualities of the final product.
  • Some participants express uncertainty about the terminology, particularly regarding the distinction between waste paper and recycled paper.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the extent of differences between the processes for making new and recycled paper. Multiple competing views remain regarding the specifics of pulp production and the implications for the final product.

Contextual Notes

Participants acknowledge that the discussion does not cover all aspects of the paper-making processes comprehensively, and the complexity of the subject may require further research beyond the forum.

Who May Find This Useful

This discussion may be of interest to individuals exploring paper production methods, students studying environmental science or industrial processes, and those curious about recycling and sustainability practices.

soonsoon88
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What is the main different within them process ?
Any good web or source can gain more knowledge about them?
 
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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.
 
jarednjames said:
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 ?
 
soonsoon88 said:
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.
 
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.
 
turbo-1 said:
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.
 
jarednjames said:
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 don't 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..
 
It's when they reclaim the paper you're interested in. They are the processes you need to look up.
 
i agree to the turbo's remarks you should search vary engines for your further assistance
 

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