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Dry (Internal) Strength Resins

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Dry (Internal) Strength Agents

Dry (internal) strength Resins are multifunctional chemicals which are widely used both to enhance paper / paperboard strength such as bursting, compressing, tensile, and internal bond strength etc. and to improve drainage and retention of fiber, fines and filler.
We have many dry (internal) strength agents that can provide the papermaker a product to meet a wide variety of needs for improved dry strength.

Copolymer Polyacrylamide (PAM) DS Series

Characteristics
  • It enhances paper / paperboard strength in wide pH range and various paper grades.
  • Possible to design copolymer according to requirement of paper quality.
  • Improve retention and drainage.
Product list

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Product name Ionic Non-volatile(%) Viscosity
(mPa・s)
pH Characteristics
DS4433 Amphoteric 20 4000~10000 2.5~4.5 General-purpose product.
Excellent effect of enhancing paper strength.
DS4434 Amphoteric 20 4000~10000 2.5~4.5 Excellent effect under high-electrical conductivity conndition.
DS4431 Amphoteric 20 4000~10000 2.5~4.5 Excellent effect of enhancing drainage and retention.
Improve retention of sizing agents and dyes.
DS4424 Amphoteric 20 4000~10000 2.5~4.5 Excellent effect of enhancing the paper strength and retention under the condition that uses calcium carbonate.
DS4817 Amphoteric 20 3000~11000 2.5~4.5 Excellent effect even without alum by introducing a special functional group.
FC8501 Amphoteric 20 4000~10000 2.5~4.5 Excellent effect under acidic condition. FCN confirm.
FC8502 Amphoteric 20 4000~10000 2.5~4.5 Excellent effect under neutral condition.
Excellent sizing effect under neutral to alkaline condition. FCN confirm.

Hoffman Type PAM DH Series

Characteristics
  • It enhances ply bond strength / compressing strength.
  • Especially, effective for alum free condition of papermaking.
  • Effective at higher dosage in combination with DS series.
Product list

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Product name Ionic Non-volatile(%) Viscosity
(mPa・s)
pH Characteristics
DH4160 Cation 10 200~800 4.5~5.5 General-purpose product.
Effective for alum free condition.
DH4162 Cation 12 700~1300 4.5~5.5 High-concentration product.

Anionic PAM DA Series

Characteristics
  • Effective in acidic pH range.
  • Effective at higher dosage in combination with DS series.
Product list

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Product name Ionic Non-volatile(%) Viscosity
(mPa・s)
pH Characteristics
DA4104 Anion 15 7000~25000 6.5~7.5 General-purpose product.
DA4106 Anion 15 3000~7000 5.0~7.0 Low viscosity and easy to handle.

Starch Grafted PAM DG Series

Characteristics
  • They combine good features of starch and copolymer PAM.
  • They can improve formation, provide improved softness and allow for easier recycling of the end product after use.
Product list

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Product name Ionic Non-volatile(%) Viscosity
(mPa・s)
pH Characteristics
DG4204 Anion 15 3000~10000 4.0~6.0 DG4204 combines the characteristics of starch and polyacrylamide.

Cationic Solution Starch DD Series

Characteristics
  • Easy to use low viscosity and liquid material.
  • Reduces pitch and stickies deposits.
  • Easy to rework both within the process and after end use.
Product list

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Product name Ionic Non-volatile(%) Viscosity
(mPa・s)
pH Characteristics
DD4280 Cation 15 200> 4.0~6.0 Cationized starch solution.
No cooking required.