Paper360 - March/April 2018 - 60

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TJ SUMMARIES

samples for process analysis. The new automated stickies measurement method allows (i) determination of the three-dimensional (3D)
morphology of screened particles (without any deformation) and (ii)
classification of the particles as stickies among contaminants. This
is achieved by a combination of laser triangulation and local nearinfrared spectroscopy (NIR).
Measurement of macrocontaminants in pulp samples and their
classification allow meaningful evaluation of their specific removal.
Chemical nature and amount of the macrocontaminants coming
from different raw materials were studied and were shown to be very
different in two different mills. In an Asian mill, a low removal of
pressure sensitive adhesives (PSAs) in the process (46 percent) was
found in comparison with high removal of other stickies (99 percent).
Applications of this device are shown in this study, while the new
on-line sensor for macrocontaminant analysis is being developed.
This study demonstrates how mills can analyze stickies removal
throughout the recycling process. As a consequence, they could
control the process depending on the chemical nature of incoming
stickies contamination.

The papers summarized here are from the November
2017 issue, featuring special recycling content; and the January 2018
issue, featuring special coating content. TAPPI Journal is an online
publication of relevant and timely peer-reviewed research delivered
via email and free to all TAPPI members. To receive TAPPI Journal,
join TAPPI at www.tappi.org.
NOVEMBER
STICKIES
Improved deinking and stickies removal
Cesar Basilio
Previous work had shown that a novel flotation deinking reagent
using modified kaolin was able to more efficiently separate and remove
ink and dirt particles from recovered paper. The mechanism for this
reagent is based on the ability of the modified kaolin to act as a collector for the fine ink, dirt, and contaminant particles.
Deinking mills using this reagent experienced deinked pulp with an
increase in brightness and lower dirt count values. Further work has
been carried out to determine whether this mechanism can be used to
improve the removal of stickies in recovered pulp. Test results showed
that use of this modified kaolin together with a reagent capable of
effectively separating the sticky contaminants from the fiber improved
the removal of stickies. The synergy of this reagent with the modified
kaolin further improved ink and dirt removal.
MACROCONTAMINANTS
New automated method for macrocontaminant analysis:
industrial applications
Sylvie Ossard, Patrick Huber, Pascal Borel, Davy Soysouvanh,
and Thierry Delagoutte
In recycled paper processes, stickies are the origin of many production disturbances. In this paper, we present how the recently developed
method for macrocontaminant analysis was used with industrial
60

Paper360º

MARCH/APRIL 2018

The 3D Stick device: A laser line and a camera perform the mapping
by laser triangulation, and an NIR head analyzes chemical composition
of contaminants.

DEINKING
Deinking process water flotation: An innovative solution to
improve deinking and papermaking processes efficiency
Thierry Delagoutte, Bruno Carré, and Elisa Zeno
High and uncontrolled surface-active substances (SAS) concentrations in deinking line process waters strongly disturb flotation deinking. Indeed, their adsorption at air/water and ink/water interfaces
stabilizes air bubbles and ink particles, reducing ink collection during
flotation. In addition, foam stabilization promoted by SAS reduces
froth drainage and consequently enhances suspended solids losses.
All in all, selectivity of flotation is negatively affected by excessive
SAS concentrations.
Floating process water with adapted technology, a patented solution, is an efficient way to decrease SAS concentration and thereby
recover flotation deinking selectivity. Researchers successfully tested
this concept at industrial scale. First-loop clear filtrates of a deinked
pulp line (for newsprint production) were floated. At steady state,
this treatment allows a 20 percent reduction of the SAS concentration
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Table of Contents for the Digital Edition of Paper360 - March/April 2018

Setpoint
Over the Wire
The Importance of Safety Training
Data & Decision Making
RISI European CEO of the Year: DS Smith’s Miles Roberts
Buckman’s Junai Maharaj on ‘The Art of the Possible’
Fapajal Tissue: Old, New & Customer-Centric
Progroup Turns 25
PIMA, Paper360° Co-Host Executive Panel
Creating a Lignin Culture
Benefits of Drive-Through Design
Sustainability as Business Leverage
CIPTE Show Highlights Innovation and Sustainability
TAPPI Journal Summaries
Leadership in Maintenance: Where Do We Start?
As a New Reliability Engineer, Are you Confused About Your Role?
R&M Tips
Paper and Board Have Key Roles in the Future of Packaging
Global Paper and Paperboard Demand Growing Despite Declines in Graphic Paper
PPI Awards Showcase Industry Excellence
TAPPI News
ASPI News
Index of Advertisers
Paper360 - March/April 2018 - intro
Paper360 - March/April 2018 - ebelly1
Paper360 - March/April 2018 - ebelly2
Paper360 - March/April 2018 - cover1
Paper360 - March/April 2018 - cover2
Paper360 - March/April 2018 - 3
Paper360 - March/April 2018 - 4
Paper360 - March/April 2018 - 5
Paper360 - March/April 2018 - Setpoint
Paper360 - March/April 2018 - 7
Paper360 - March/April 2018 - 8
Paper360 - March/April 2018 - Over the Wire
Paper360 - March/April 2018 - 10
Paper360 - March/April 2018 - 11
Paper360 - March/April 2018 - The Importance of Safety Training
Paper360 - March/April 2018 - 13
Paper360 - March/April 2018 - Data & Decision Making
Paper360 - March/April 2018 - 15
Paper360 - March/April 2018 - 16
Paper360 - March/April 2018 - 17
Paper360 - March/April 2018 - 18
Paper360 - March/April 2018 - 19
Paper360 - March/April 2018 - 20
Paper360 - March/April 2018 - 21
Paper360 - March/April 2018 - 22
Paper360 - March/April 2018 - 23
Paper360 - March/April 2018 - 24
Paper360 - March/April 2018 - 25
Paper360 - March/April 2018 - 26
Paper360 - March/April 2018 - 27
Paper360 - March/April 2018 - 28
Paper360 - March/April 2018 - 29
Paper360 - March/April 2018 - 30
Paper360 - March/April 2018 - 31
Paper360 - March/April 2018 - RISI European CEO of the Year: DS Smith’s Miles Roberts
Paper360 - March/April 2018 - 33
Paper360 - March/April 2018 - 34
Paper360 - March/April 2018 - 35
Paper360 - March/April 2018 - Buckman’s Junai Maharaj on ‘The Art of the Possible’
Paper360 - March/April 2018 - 37
Paper360 - March/April 2018 - 38
Paper360 - March/April 2018 - 39
Paper360 - March/April 2018 - Fapajal Tissue: Old, New & Customer-Centric
Paper360 - March/April 2018 - 41
Paper360 - March/April 2018 - 42
Paper360 - March/April 2018 - 43
Paper360 - March/April 2018 - Progroup Turns 25
Paper360 - March/April 2018 - 45
Paper360 - March/April 2018 - 46
Paper360 - March/April 2018 - 47
Paper360 - March/April 2018 - PIMA, Paper360° Co-Host Executive Panel
Paper360 - March/April 2018 - 49
Paper360 - March/April 2018 - Creating a Lignin Culture
Paper360 - March/April 2018 - 51
Paper360 - March/April 2018 - 52
Paper360 - March/April 2018 - 53
Paper360 - March/April 2018 - Benefits of Drive-Through Design
Paper360 - March/April 2018 - 55
Paper360 - March/April 2018 - Sustainability as Business Leverage
Paper360 - March/April 2018 - 57
Paper360 - March/April 2018 - CIPTE Show Highlights Innovation and Sustainability
Paper360 - March/April 2018 - 59
Paper360 - March/April 2018 - TAPPI Journal Summaries
Paper360 - March/April 2018 - 61
Paper360 - March/April 2018 - 62
Paper360 - March/April 2018 - 63
Paper360 - March/April 2018 - 64
Paper360 - March/April 2018 - Leadership in Maintenance: Where Do We Start?
Paper360 - March/April 2018 - As a New Reliability Engineer, Are you Confused About Your Role?
Paper360 - March/April 2018 - R&M Tips
Paper360 - March/April 2018 - Paper and Board Have Key Roles in the Future of Packaging
Paper360 - March/April 2018 - 69
Paper360 - March/April 2018 - Global Paper and Paperboard Demand Growing Despite Declines in Graphic Paper
Paper360 - March/April 2018 - 71
Paper360 - March/April 2018 - PPI Awards Showcase Industry Excellence
Paper360 - March/April 2018 - 73
Paper360 - March/April 2018 - 74
Paper360 - March/April 2018 - 75
Paper360 - March/April 2018 - 76
Paper360 - March/April 2018 - 77
Paper360 - March/April 2018 - 78
Paper360 - March/April 2018 - TAPPI News
Paper360 - March/April 2018 - 80
Paper360 - March/April 2018 - ASPI News
Paper360 - March/April 2018 - Index of Advertisers
Paper360 - March/April 2018 - cover3
Paper360 - March/April 2018 - cover4
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