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1 Additives for Paper Impregnation BL Interface & Performance
1
Additives for Paper
Impregnation
BL Interface & Performance
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Paper Impregnation Process Needs Additives
Additives for Paper Impregnation
DryingUnwind RewindDip coating
Resin Bath
Wetting agent
Dispersant
Defoamer
Antidust
3
TEGO® Surten W 111
▪ Alcohol alcoxylate
▪ 100% active
▪ No foaming
▪ Enhanced penetration
into the paper
▪ Nonylphenol ethoxylate-free
TEGOPREN® 5878
▪ Organomodified siloxane
▪ 100% active
▪ Low foaming
▪ Enhanced penetration
into the paper
▪ Nonylphenol ethoxylate-free
Wetting Agents for Paper Impregnation
Additives for Paper Impregnation
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Test Method / Wetting Behavior of Aminoresins on Paper
Additives for Paper Impregnation
Draw down direction
For each test two stripes are cut from one sheet of paper. For the measurement always a control without additive and one
with the wetting agent is measured to ascertain comparable results. A drop with a defined volume is put on the paper and
at once drawn down with our draw down machine. Then the length and width of the resin film is measured and noted down
as difference compared to the control in % shorter (length) and % broader (width).
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Test Setup & Performance of Wetting Agents
Additives for Paper Impregnation
Determination of film length
The shorter the film the faster does the
resin penetrate into the paper
Determination of film width
The broader the film the better the
penetration into the paper
1 2 3 4
1. Control without additive (powder
resin + hardener)
2. Competitor, Octylphenolethoxylate
3. TEGO® Surten W 111
4. TEGOPREN® 5878
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OMS are 10 Times as Effective as Standard Wetting Agents
Additives for Paper Impregnation
0
2
4
6
8
10
12
14
0 0,1 0,2 0,3 0,4 0,5
Film
len
gth
[cm
]
Concentration [%]
competitor
TEGOPREN 5878
0,05
Perf
orm
an
ce
high
low
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▪ In Melamine resins for impregnation of decor paper and overlays
▪ In Phenolic resins for impregnation of Kraft paper
Where are Antifoams used?
Additives for Paper Impregnation
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TEGO® Antifoam 2360
▪ Excellent antifoaming properties
▪ Especially designed for sensitive surfaces like Melamine or Polyurethane
▪ No surface defects
▪ Transparent films
▪ Easy to handle emulsion
Antifoam for Impregnation of Decor Papers and Overlays
Additives for Paper Impregnation
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Stirring Test for Foaming Behavior of Resin Formulations
Additives for Paper Impregnation
How to run the test:
1. 160 ml resin + defoamer is poured into a 250 ml beaker
2. Stirring for 1 minute at 2500 rpm
3. Resin is poured into a 50 ml calibration flask
4. Weight is determined
Interpretation
High weight = few entrained air = good defoamer performance
Low weight = much entrained air = poor defoamer performance
The amount of air can be calculated by using the following formula:
Volume of air % = 100 – (g*2)/D
g = weight of 50 ml stirred resin; D = density of the air free resin
The stirrer must be completely covered with resin.
Cage Stirrer:
Diameter: 2
cm
Height: 2 cm
1 23
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Antifoams / Results Stirring Test
Additives for Paper Impregnation
Melamine Resin + 0.2% Antifoam
0
5
10
15
20en
train
ed
air
(V
ol.
-%)
Control Competitor TEGO® Antifoam
2360
Perf
orm
an
ce
high
low
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TEGO® Antifoam 2290
▪ High efficient antifoam
▪ Based on paraffinic oil and is completely silicone free
▪ Very compatible
▪ Self-emulsifiable antifoam concentrate
▪ Easy to use
Antifoam for Phenolic Resins in the Impregnation of Kraft Paper
Additives for Paper Impregnation
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Antifoams / Results Stirring Test
Additives for Paper Impregnation
0
5
10
15
20
25e
ntr
ain
ed
air
[V
ol%
]
Without antifoam competitor
antifoam
TEGO® Antifoam
2290
Phenolic Resin + 0.05% Antifoam
Perf
orm
an
ce
high
low
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200 µm Films of Phenolic Resin on Glass
Additives for Paper Impregnation
Without Antifoam Competitor Antifoam TEGO® Antifoam 2290
Antifoam dosage = 0,05 w%
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TEGOMER® Dispersing Agents
In the production of single-colored surfaces
the pigments may be dispersed in the resin
bath.
Mainly this is done in the production of white
surfaces by dispersing TiO2 in the resin.
If the dispersion is not good enough,
separation of the pigment will occur. These
separations often build up hard layers in the
resin bath and are not easy to remove.
Without TEGOMER® DA
Additives for Paper Impregnation
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TEGOMER® Dispersing Agents
Additives for Paper Impregnation
By adding TEGOMER® DA
dispersing agents separations are
avoided.
No hard layers are build up and
cleaning of the impregnation bath is
getting easier.
With TEGOMER® DA
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C
C
C
C
C
C
C
C
C
C
c
TEGOMER® DA 640
▪ Polyether phosphate
▪ Anionic
▪ 30% active content in water
▪ Solvent and Nonylphenol
ethoxylate-free
TEGOMER® DA 850
▪ Organic modified polymer
▪ Nonionic
▪ 40% active content in water
▪ Solvent and nonylphenol
ethoxylate-free
TEGOMER® Dispersing Agents
Additives for Paper Impregnation
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Wetting Agents
Defoamer
Dispersing Agents
TEGOPREN® 5878
TEGO® Surten W 111
TEGO® Antifoam 2360 for Melamine resins
TEGO® Antifoam 2290 for Phenolic resins
TEGOMER® DA 640
TEGOMER® DA 850
Additives for Paper Impregnation
Additives for Paper Impregnation
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