Advanced technologies at paper chemicals: wet strength agents – Giluton®. For more than three decades Kurita has established a leading position in the European market for wet strength agents. Wet strength is the mechanical strength of paper remaining after complete soaking in water. Our wet strength resins, Giluton®, are based on polyamidoamine-epichlorohydrin (PAAE) chemistry and are primarily applied under neutral to slightly alkaline conditions. Our strong commitment to R&D has led to an advanced portfolio fulfilling the needs of particular applications requirements and regulatory standards. Our product range composed of 2nd and 3rd generation, meet the requirements of the recommendations No. XXXVI of BfR (Bundesinstitut für Risikoanalyse), the RAL Umweltzeichen and the EU ecolabel for paper, the Nordic Swan Ecolabelling of Tissue as well as the FDA regulations 21 CFR §§ 176.170 and 176.180 (packaging papers for dry or aqueous and fatty food).

1. efficiency for industry
Innovative Wet Strength Technology
Giluton®

2. 2
Wet strength is the mechanical
strength of paper remaining after
complete soaking in water.
Wet Strength Agents are synthetic
resins dedicated to maintain paper
strength in aqueous medium:
Giluton® Technology – Introduction
Wet Strengthening
Forming of
additional water
resistant bonds
between the
fibers
Prevention of
water
penetration
Prevent swelling
of the fibers to
conserve the
stiffness of the
fibrils
Sizing

3. 3
«New Generation»
products with extremely low byproduct concentration
Giluton® Technology – Introduction / Targets
Improved dry & wet breaking length Better ash content of paper
Increase in paper machine
efficiency
Reduced total cost of ownership

4. 4
Wet strength agents are applied in various
paper grades such as:
• Tissue
• Packaging papers (liquid packaging
board, cooling house board, vegetable
board)
• Specialty papers (bank note paper, filter
paper, label paper, decorative laminating
paper, wall paper etc.)
Giluton® Technology – Introduction

5. 5
Giluton® Technology – Introduction / Mode of Action
Model A
No chemical bonding,
only physical
entanglement of fibers
and resin
Model B
Chemical bonding only
between the wet strength
resin polymers
(Homo-cross linking)
Model C
Chemical bonding only
between the wet strength
resin polymers and fibers
(Co-cross linking)
Model D
Chemical bonding
between all components
Reactive wet strength resinFiber surface with fibrils Cross linking point (Homo)
Cross linking point (Co)

6. WSA accumulates during drying process near fibers’ crossing points: WSA is
crosslinking within curing time.
6
Giluton® Technology – Introduction / Mode of Action
Drying procedure: Water content

7. 7
Giluton® Technology – Type of Wet Strength Agents
1. Temporary wet
strength resins
Polyamines Aldehydes
Glyoxal,
dialdehyde starch,
glyoxylated
polyacrylamide
Polyethylene imines,
polyvinyl amines
Formaldehyde resin
Urea-Formaldehyde,
Melamine-Formaldehyde
2. Permanent wet
strength resins
• Market share of PAAE resins in
Europe
Other
PAAE Resins
85 %
15%
Epichlorhydrine-resin
Polyamine-
epichlorhydrine,
Polyamidoamine
epichlorhydrine (PAAE)

8. 8
Epichlorhydrine-resins
Byproducts;
• Dichlorpropanol (DCP)
• Monochlorpropandiol (MCPD)
• Glycerin
Giluton® Technology – Definition of Generation
• Classified as WGK 1 (low hazard to water)
• By products limits (BfR XXXVI):
DCP < 2 ppb, MCPD < 12 ppb
for food contact papers. 1. Generation 2. Generation 3. Generation
DCP
MCPD
Concentrationinproduct[ppm]
< 10.000
< 3.500
< 1.000
< 500
< 5 < 100

9. Giluton® WS 12, Giluton WS 16
Cost effective products for specialty papers and tissue
Giluton® 14 XP
Higher filler retention and lower AOX for specialty papers
Giluton® 14 NW, Giluton 20 XP
Lower AOX and Nordic Swan compliance for specialty papers and tissue
Giluton® 3640
For high strength requirements with lower DCP & MCPD content for
specialty papers and tissue
9
Giluton® Technology – Product Range
Giluton® 18 LO, Giluton® 15 NW
Low level of DCP & MCPD for food process applications
Giluton® 1100/37N, Giluton® SP
Very low level of DCP & MCPD for hot filter papers
2nd generation products 3rd generation products

10. 10
Giluton® Technology – Benefits
High strength
performance on
recycled and virgin
fiber
Very low AOX, DCP
& MCPD contribution
Excellent filler
retention
Less sensitive at
high system
conductivities
Efficient paper production process
BfR, FDA and
Nordic Swan
compliance
Applicable in a
broad pH range
(pH 5.5 – 8.5)

11. More than 100 global application references available
11
Giluton® Technology – Supporting Documents
including industries like – tissue and specialty paper
manufacturers
including case studies
including reference list

12. 12
WATCH OUR VIDEO
Learn more about the production
process of wet strengthened paper
Giluton® Technology – Supporting Documents

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